Lever hoist Handling Precautions

When the ratchet lever hoist is used to enhance the loading hoists, hoist from the weight should be reduced to 1/3 of nominal weight.
Lever hoist must be checked before using the case if all the fastening screws are tight, not loose.
Lever hoist has been wiped clean penetration supporting rope and wire rope clamp, then pulled forward or backward Shouben handle, depending on whether the action is normal.
Lever hoist is used to enhance the weight of the human, not any longer operating handle.
Lever hoist operation should handle the freedom to let the rest follow, not jammed.
Lever hoist must be selected according to the size appropriate tonnage hoist load.
Not use lever hoist overload.
Lever hoist shall be illegal to use.

lever hoist high work efficiency

 lift hoist is suitable for construction of the line tight line, adjust the sag, cable and other work in the power, shipbuilding, transportation, construction, mining, telecommunications, communications and other sectors of equipment installation; lifting small items.
 lever hoist mechanical traction, Japan NGK lever hoist especially in small workplaces, outdoor, aerial, and a variety of different angles of traction. More unique advantages;
 lever hoist the main selection of high-strength magnesium alloy material, the chain of high-strength special steel material, with easy to use in the design and use, safe, reliable, reasonable structure, beautiful shape.
 lever hoist maintenance is simple, durable, small lever force, high efficiency, small volume special, special light weight, easy to carry special features.
 lever hoist lifting industry is prohibited ill personnel to operate using. What is the relevant information, please read carefully.
Recently, together with the crane collapse occurred in Anning District of Lanzhou City. Important cause of heavy machinery accidents are frequent lifting equipment "sick job", not inspection, unlicensed operation and other security vulnerabilities.

Lifting machinery such operations are very grateful to the technical content, our operators need to have what conditions?

Article: Various cranes should be installed, indicating the hoist manufacturers of signs and, if necessary install winch limit
, A load controller, interlock switches and other devices should be placed walking track cranes and rail clamp stopper, try hanging should be checked before use.
Article: wire rope on the drum must be neat, tail card prison, work at least three times over reserved.
Article: Do not arbitrarily change the performance of the crane.
Article IV: the operation must obey the signal commanding officers, the signal is unknown or may cause an accident should be suspended operations.
Article: When lifting, lifting objects under someone to stay and can not walk.
Article: lifting objects should pull slip rope, speed should be uniform, smooth, prevention of sudden braking and changes of direction, lifting objects, should be more than 0.5 meters above the barrier, should be low speed fall gently to prevent dumping.
Article: When lifting an object, the object is prohibited to stand.
Article VIII: establish sound crane maintenance, periodic inspection, operating system security, and education-related personnel seriously implemented.
Article IX: bridge crane should be located chauffeur-driven, there is a person responsible for the hook and directing (the need for operating permits). Driving without a license is prohibited and conductor.
Article X: Cranes workplace have sufficient lighting and smooth lifting channel. Prohibited from hanging objects across the top of the head.
Article XI: significant parts of the crane's maximum weight marked prohibited overload.
Article XII: the crane work, prohibit staff from top to bottom, are not allowed to engage in repair work, banned from a crane over to another crane up except shut down for maintenance, the prohibition on track to leave.

Lever hoist structural features

A hand hoist gear: innovation symmetrical arrangement of high-speed synchronous gear; international standard gear steel double gourd durability than ordinary, more stable rotation, hand pull lighter.
2. lever hoist chain: higher strength chain; counterparts at welding fine, medium frequency induction hardened after compliance with the technical requirements of ISO3007-1984 international standard chain; adapt to sudden overweight job; hand zipper feel better; change ordinary gourd only vertical drop-down, from multiple directions, was pulling a 45 ° angle, the greater the range of adaptation.
3. Japan NGK lever hoist hook: high strength material foot hook, advanced alloys, so the fracture does not occur outside the bear overworked, but the gradual deformation, higher safety factor; hook at the new design, so that the goods are not will be decoupled.
4. lever hoist limit switch: hanging under the hanging limit switch parts, textile chain beyond to ensure safety.
5. hand chain hoist parts: the main components are made of high quality steel, the implementation of strict size, weight checks to ensure the performance of each component of the full play.
6 lever hoist body: slim design, innovative and generous appearance; ergonomic, light body work activities of small interface, wide environment.
7. Japan lever hoist spray: advanced spray treatment process, inside and outside are hanging plastic, use for longer list are new as ever.
8. lever hoist Housing: pressed steel housing, solid in significantly lighter.

Lever hoist features

All structural steel lift hoist
Super alloy chain lever hoist
Full rotation of the gear lever hoist
Lever hoist gear and rotating the shaft has bearings or bushings
Lever hoist product surface after spray
Alloy lever hoist hook professional products to meet the overload
Lever hoist products to meet 150% of rated load weight
Lever hoist is the use of aluminum alloy chain lever hoist, the most important feature is the small, labor-saving, easy to carry.
Lever hoist is an easy to use, easy to carry the manual lifting, mainly for use when lifting and lateral traction, field operations officer for the power cable installation or aerial tight line.

Chain hoists - correct method of operation

1, the operation should first try hand chain hoist, when the weight off the ground, such as in normal operation, reliable braking. Can continue lifting.
2, the operator can not stand heavy objects on top of operating the job, nor will stay in the air after lifting heavy objects and left the scene.
3, the lifting process, forbids any person to walk or stand under the weight.
4 Do not use non-manual drive mode lifting heavy objects. Pull them when found, shall not increase the tension, stop using it immediately, check the weight of its five, he implicatedobjects, heavy weight exceeds the nominal weight, gourds and other parts for damage.
6, increase or decrease the distance shall not exceed the weight lifting height, to prevent damage to the parts.
7, is prohibited by more than two and two hoists while lifting weights.
8, a typical example of the operation in violation of safety rules, see Appendix A (Appendix tips).

General Precautions using chain hoists

1, each product must be accompanied by product use and maintenance manuals, production licenses and product certification mark.
2, the product should be clear, durable signs.
3, non overload or oblique lifting cranes. Ban hanging pull buried or heavy condensation on the ground.
4, hand chain hoist supporting points must be strong and stable.
5, hanging, tied with a rope and chain safety factor should be not less than 6.
6, is strictly prohibited under the rebate to the lifting chain hook lifting weights
7, do not allow throwing hoists.
8, the user may not change the original design of the product.
9, the replacement parts must meet the original design requirements.

Three phase cheap wire rope hoist

Three phase electric hoist in the use of safety and technical conditions before checking hook, wire rope, reducer and other consumable parts. When in use, prohibit persons from portable electric hoist entering the danger zone and sent people hoisting care. three phase electric hoist placed when lifting or bundled items must be standardized in line with lifting requirements, the brakes, the safety device failure, the next hook nut locking device is damaged, rope and other damage to be scrapped prohibited lifting devices operation. Hanging objects tied, hanging strong or imbalance may slip, not for lifting operations are not padded edges between objects and cheap wire rope hoist. Unable to see the sites, not for lifting operations suspended matter the situation and command signals. In stoppage or rest, get the hanging objects, hanging baskets, spreader and cable hanging in the air. Allowed to press the two make three phase electric hoist in the opposite direction of movement of the flashlight electric wire rope hoist door button. After the completion of the work must always pull the brake power, cut off the power. Dynamic load test based on the weight of the rated load, as repeatedly lift and move around the test, checking the mechanical transmission parts After the test, the electrical part and the connecting portion is normal and reliable.

Manual hoist as an upgraded version of the fixed pulley

Manual hoist as an upgraded version of the fixed pulley, fully inherits the advantages of fixed pulley, while using a combination of reverse backstop brake reducer and chain pulley blocks,lever hoist manufacturers symmetrically arranged two spur gears turning structure, simple, durable and efficient.
Manual hoist by hands and pull chains, bracelets wheel rotation, the friction plate ratchet, brake pressure into one common rotating seat, the long axis of the tooth will turn the sprocket tooth spline hole short axis and gear. This means lifting sprocket holes on the splines on the drive gear lifting chain, so as to enhance the smooth heavy.wire rope electric hoist Using one-way ratchet friction disc brakes, brake under load on their own, with the ratchet pawl engagement under the action of the spring, the safety brake.

Liftech Equipment Manual Hoist usage rules

Liftech Equipment Manual Hoist stayed overload use is strictly prohibited. Do not operate with a power other than human. Before using the parts required to confirm intact,cargo lashing transmission parts and lifting chain oiled, idling normal. Liftech Equipment Manual Hoist lifting hook before checking whether hanging down firmly, lifting chain should be hung vertically, not a wrong twist of chain link, double under hook rack chain not flip.
Liftech Equipment Manual Hoist operator should stand on the same plane with the bracelet round hands pulled the chain to make bracelets wheel rotates clockwise, you can make the weight rise;small electric hoist reverse hands pulled the chain, the weight can slowly decline. When lifting weights, is prohibited personnel action to do any work or walk under a heavy object, in order to avoid a major accident. In the lifting process, regardless of the weight up or down, drag chain hands, the force should be uniform gentle, do not use too much force, so as not to hand chain jumping or snap ring. When the operator is found hand-pull tension greater than normal, you should immediately stop using it. Prevent damage to the internal structure, to prevent falling objects accident. After heavy to be safe and secure landing,manual lever hoist then remove chain hoists under the hook. Use Liftech Equipment Manual Hoist finished, gently, in a dry, well-ventilated place, apply lubricant put away.

Liftech Equipment Manual Hoist works

Liftech Equipment Manual Hoist as an upgraded version of the fixed pulley, fully inherits the advantages of fixed pulley,electric wire rope hoist while using a combination of reverse backstop brake reducer and chain pulley block, the symmetrical arrangement of two spur gears rotating structure, simple, durable and efficient.
Liftech Equipment Manual Hoist hands by pulling the chain, bracelet wheel rotation, the friction plate ratchet, brake pressure into one common rotating seat, then the long axis of rotation of sprocket teeth, tooth spline hole short axis and gear. This means lifting sprocket holes on the spline drive gear on lifting chain, thereby lifting heavy objects smoothly. Using one-way ratchet brake friction plate,mechanical lifting devices on their own under load brake pawl engagement with the ratchet under the action of the spring, brake safety.

Hoist equipment installed before the transfer operation

Hoist equipment installed before the transfer operation, check the wire rope, clutches, brakes, insurance ratchet,electric chain hoist and trolley drive pulleys, etc., to determine the safety and reliability before operation. Wire rope on the drum must be arranged in neat rows, the job should be retained at least three times. When the job, it was not allowed to cross the wire rope hoist by preventing accidents.
Hoist equipment including motor, hoist, chassis, shields and other components; using three deceleration mode,strong electric winch with spiral pay transmission output torque greater. Hoist steel supporting civil overcome irregularities in order to reduce overall noise and vibration.hoist equipment with hydraulic hoist, winch hoist, doors, hand wheel hoist, hoist flashlight, hand hoist, screw hoist, dual crane hoist and so on.

Hoist equipment installed before the transfer operation

Hoist equipment installed before the transfer operation, check the wire rope, clutches, brakes, insurance ratchet, drive pulleys, etc., to determine the safety and reliability before operation.electric wire rope hoist Wire rope on the drum must be arranged in neat rows, the job should be retained at least three times. When the job, it was not allowed to cross the wire rope hoist by preventing accidents.
Hoist equipment including motor, hoist, chassis, shields and other components; using three deceleration mode,wire rope electric hoist with spiral pay transmission output torque greater. Hoist steel supporting civil overcome irregularities in order to reduce overall noise and vibration.hoist equipment with hydraulic hoist, winch hoist, doors, hand wheel hoist, hoist flashlight, hand hoist, screw hoist, dual crane hoist and so on.

Explosion manual hoists Introduction

Explosion manual hoists: aluminum bronze, beryllium copper as a rough, manual hoists H62 copper alloy shell with proof chain hoists applicable in explosive environments,electric wire rope hoist such as chemical, offshore and other operations.
Explosion manual hoists turning gear after high-temperature heat treatment to achieve a high gear, according wear. Explosion-proof chain hoists bracelet pull small, light weight, easy to carry, beautiful appearance, small size, durability.
Explosion manual hoists work principle: Hands chain drag chains, bracelets wheel began to turn, friction ratchet,mechanical lifting devices brake seat (to be pressed into one) common rotation, five major axis will rotate sprocket teeth, four teeth and minor axis spline Kong gears. Thus, the device lifting sprocket holes on the spline drive gear on lifting chain, lifting heavy objects smoothly.

Hoist equipment structural featureshand chain hoist

Hoist equipment including motor, hoist, chassis, shields and other components; using three deceleration mode,hand chain hoist with spiral pay transmission output torque greater. Hoist steel supporting civil overcome irregularities in order to reduce overall noise and vibration.
Hoist equipment using outdoor long duty motor, protection class ≥IP155. Stroke control mechanism using the principle of the decade counter, the stroke control error 0.5%.Hoist equipmentorque control is the axial displacement protection through the worm touch micro switch,Hoist equipment
  to achieve protection of electrical principles.hoist equipment easy operation and maintenance, enabling on-site and remote control operation.

Explosion Manual Hoist Introduction

1. Liftech Equipment Explosion Manual Hoist: aluminum bronze, beryllium copper as a rough,lifting clamp chain hoists H62 copper alloy shell with proof chain hoists used in explosive environments, such as chemical, offshore and other operations.
2.-proof chain hoists turning gear after high temperature heat treatment to achieve a high gear, according wear. Explosion-proof chain hoists bracelet pull small, light weight, easy to carry, beautiful appearance, small size, durability.
3.Liftech Equipment proof chain hoists work principle: through hands-chain drag chains, bracelets wheels began to turn, friction ratchet, brake seat (to be pressed into one) co-rotating,lifting equipments five major axis will rotate sprocket teeth, four teeth short axis the gear and the spline hole. Thus, the device lifting sprocket holes on the spline drive gear on lifting chain, lifting heavy objects smoothly.

Three phase electric hoist Cautions

Three phase electric hoist in the use of safety and technical conditions before checking hook, wire rope,5 ton electric chain hoist reducer and other consumable parts. When in use, prohibit persons from entering the danger zone and sent people hoisting care. three phase electric hoist placed when lifting or bundled items must be standardized in line with lifting requirements, the brakes, the safety device failure, the next hook nut locking device is damaged, rope and other damage to be scrapped prohibited lifting operation. Hanging objects tied, hanging strong or imbalance may slip,small electric hoist not for lifting operations are not padded edges between objects and wire rope hoists. Unable to see the sites, not for lifting operations suspended matter the situation and command signals. In stoppage or rest, get the hanging objects, hanging baskets, spreader and cable hanging in the air.

three phase electric hoist maintenance

1 after a new installation or dismantling installed three phase electric hoist, should first be empty commissioning several times. Former but not installed, avoid power test switch.
Should be carried out prior to normal use of the rated load of 2 to 125%, up from approximately 100 mm above the ground,portable electric hoist the static load test of 10 minutes, check whether it is normal.
3 Dynamic load test based on the weight of the rated load, as repeatedly lift and move around the test, checking the mechanical transmission parts After the test, the electrical part and the connecting portion is normal and reliable.
4 using three phase electric hoist, the absolute prohibition under circumstances not permitted, and exceed the rated load and nominal closing per hour (120 times) the case.
5. installation and maintenance, must strictly limit device is flexible and reliable inspection, when the limit was raised to the position of the hook, hook it to the shell casing from the rolls must be greater than 50mm (10t, 16t, 20t must be greater than 120mm). When the hook dropped lower limit position, should ensure the safety rope on the drum circle, circle must be safe and effective in more than two laps.
6. allowed to press the two make three phase electric hoist in the opposite direction of movement of the flashlight door button.
7 After the completion of the work must always pull the brake power, cut off the power.

Liftech Equipment Manual Hoist usage rules

Liftech Equipment Manual Hoist stayed overload use is strictly prohibited. Do not operate with a power other than human.magnetic lifter Before using the parts required to confirm intact, transmission parts and lifting chain oiled, idling normal. Liftech Equipment Manual Hoist lifting hook before checking whether hanging down firmly, lifting chain should be hung vertically, not a wrong twist of chain link, double under hook rack chain not flip.
Liftech Equipment Manual Hoist operator should stand on the same plane with the bracelet round hands pulled the chain to make bracelets wheel rotates clockwise, you can make the weight rise; reverse hands pulled the chain, the weight can slowly decline. When lifting weights,monorail wire rope hoist is prohibited personnel action to do any work or walk under a heavy object, in order to avoid a major accident. In the lifting process, regardless of the weight up or down, drag chain hands, the force should be uniform gentle, do not use too much force, so as not to hand chain jumping or snap ring. When the operator is found hand-pull tension greater than normal, you should immediately stop using it. Prevent damage to the internal structure,mechanical lifting devices to prevent falling objects accident. After heavy to be safe and secure landing, then remove chain hoists under the hook. Use Liftech Equipment Manual Hoist finished, gently, in a dry, well-ventilated place, apply lubricant put away.

Liftech Equipment Manual Hoist works

Liftech Equipment Manual Hoist as an upgraded version of the fixed pulley, fully inherits the advantages of fixed pulley,Manual hoist while using a combination of reverse backstop brake reducer and chain pulley block, the symmetrical arrangement of two spur gears rotating structure, simple, durable and efficient.
Liftech Equipment Manual Hoist hands by pulling the chain, bracelet wheel rotation, the friction plate ratchet,trolley manufacturers brake pressure into one common rotating seat, then the long axis of rotation of sprocket teeth, tooth spline hole short axis and gear. This means lifting sprocket holes on the spline drive gear on lifting chain, thereby lifting heavy objects smoothly. Using one-way ratchet brake friction plate, on their own under load brake pawl engagement with the ratchet under the action of the spring, brake safety.

hoist equipment devices introduced

Hoist equipment including hydraulic system power unit, control and regulation devices, and other assistive devices. Sets can share a hydraulic hoist system.
.Hoist equipment hydraulic power unit generally, it is the mechanical energy into hydraulic energy. Hoist equipment Pump generally use positive displacement pumps, such as vane pumps and piston pumps. Vane pumps and piston pumps have a compact structure, smooth operation, less noise, long life and other advantagescan be high pressure, high flow, and the flow rate is adjustable. Recent years, domestic hydraulic hoist common use in high pressure, so in most cases, piston pump. Additionally,small electric hoist because the importance of hydraulic Hoist equipment hydraulic systems are generally set up two sets of hydraulic pumps, spare each other.

The main features of hoist equipment

hoist equipment sealing, less pollution gold ring, operation, easy maintenance, less wearing parts, low cost, due to less energy-efficient and maintenance, the use of low cost, reliable, advanced design principles to ensure reliable operation of the machine resistance, good sealing. Less environmental pollution.
Port construction Hoist equipmentt models, high accuracy. After hemming and intermediate casing beading, and then by welding, good rigidity, beautiful appearance, small mechanical dimensions, compared with an equivalent amount of other kinds of lifting hoist, hoist machinery such small dimensions. hoist equipment transport capacity, the series has NE15 ~ NE800 hoist a variety of specifications. The lift amount in the range of 15 ~ 800m3 / h. hoist equipment easy to operate, less maintenance,small electric hoist less wearing parts. Bush roller chain conveyor for induction gravity discharge, for a variety of powder, vertical lifting lumps Reap.

The main features of hoist equipment

Compact hoist equipment structure, the motor axis is perpendicular to the axis of the reel hoist using worm gear. Its disadvantages are: the length of large size, the size of the large width aspect,Hoist equipment clumsy structure, the low mechanical efficiency and the like and processing difficult. Hydraulic system for dual control, overflow valve, magnetic contact pressure gauge can be accurately controlled. Electrical control department uses a low voltage control, increased security dominate the system, manufacturers have no such structural type of product.
Structure and Characteristics: The machine uses a mechatronic design, the replacement of a different mold, you can suppress the different specifications of wire rope, domination is simple, safe. Its main drawback is the motor cooling premise is poor, poor grouping, inspection, device, easy maintenance motors, power supply unit complex.electric hoist trolley Electric motor axis is parallel to the roll axis of the electric hoist, wire rope electric hoist advantage of its height and length of the small size. Its disadvantage is that the large width dimension, the packet is poor, the manufacturing and assembly complexity.
Classification and description of the composition department wire rope hoist wire rope hoist are: motor, pass the idea of ​​structure, drum and sprocket. The mutual position of the motor and the spool can be roughly divided into four different types. Suppression of rope Rally, beautiful, fast, crimp a wire rope just a few minutes to complete,portable electric hoist
  greatly reducing the labor intensity, improve work efficiency.
Motor mounted on the outside of the drum hoist equipment, its advantages for the group is good, high degree of common, easily lifting height changes, device testing convenient.

hoist equipment major classification and application areas

hoist equipment is a special lifting equipment, installed in the crane, on the gantry crane,Hoist equipment electric hoist with small size, light weight, simple operation, easy to use features for industrial and mining enterprises, storage terminals and other places.
hoist equipment major categories: electric chain hoist, wire rope electric hoist (proof gourd),hoist manufacturers corrosion electric hoist, double drum hoist, hoist, mini electric hoist, electric hoist crane group, multi-hoist.
Application areas: promotion, pull shift, handling heavy loads, tank flip chip bonding, such as installation and moving various medium-sized concrete, steel, and machinery and equipment for construction and installation companies, civil construction and bridge construction factories and mines, electric power, shipbuilding,Hoist and trolley automobile manufacturing, construction, roads, bridges, metallurgical, mining, slope tunnels, wells and other infrastructure construction management protection of machinery and equipment.

three phase electric hoist pulley scrapped

Electric hoist crane pulley, metal casting, appear temporarily the following situation, should be scrapped:
three phase electric hoist  pulley
1) crack.
2) the wheel groove uneven wear loss reached 3mm.
3) wheel groove wall thickness wear up to 20% of the original wall thickness at.
4) because of wear of the wheel groove bottom diameter reduction of wire rope diameter 50%.
5) other damage of steel wire rope defect related issues.
Two, the ratio of electric hoist crane pulley diameter and the wire rope diameter shall be not less than the specified value.
Three, electric hoist crane pulley groove should be smooth, manual lever hoist no damage of steel wire rope defect driving.
Four, electric hoist wire rope pulley should prevent the device from the wheel slot.

How to prevent the cheap wire rope hoist is rust corrosion

There are a lot of cheap wire rope hoist  is made of metal parts, improper maintenance is easy to rust corrosion, thus affecting the whole life of the future use and therefore how to prevent rusting wire rope hoist is also a need for attention. 

1, wire rope hoist gearbox, anti-rust coating should contain barium petroleum sulfonate grease in the gear surface, and regularly check corroded and full protective film case. 

2, the part of the  monorail wire rope hoist   have been exposed surfaces and exposed machined surfaces and other corrosive threaded part, should smear grease or other calcium-based rust rust grease. 

3, the surface should be coated with anti-rust lubricant rope should wrap tarpaulin or plastic film in the non-operating conditions outside. 

4, the hook bearing grease to inject calcium-based rust to rust, and often checks. 

For rust corrosion has been the site, first with hardwood or bamboo pieces scrape rust re-oiled, such as the original film is damaged or deteriorated, the application of kerosene or gasoline to clean, apply a rust grease.‍

The basic classification of steel wire rope electric hoist

Part of monorail wire rope hoist are: motor, drive mechanism, the drum and a steel wire rope. The motor and the reel mutually different positions can be divided into four types.
(1) the electric hoist motor axis perpendicular to the drum axis with worm gearing, width of large size, heavy weight, low mechanical efficiency, processing more difficult. There is no manufacturers of this type of product.
(2) the motor axis parallel to the drum axis electric hoist, the wire rope electric hoist has the advantages of small size and length of the height. The disadvantage for large width, grouping, complex manufacturing and assembly. Orbital radius.
(3) the strong electric winch motor mounted on the inside of the drum, the utility model has the advantages of compact structure, small size. The main drawback for motor cooling condition is poor, packet difference, inspection, installation, motor maintenance inconvenience, power supply device complex.
(4) the electric hoist motor mounted on the outside of the drum, the advantages of good for grouping, high level of generalization, changing the lifting height is easy, convenient installation and maintenance. Its shortcomings: large size.

electricity Power capstan

In practical application, we may be very curious: why is electricity Power capstan motor inside the small, but can be a car Pulled from the mud? This will be referred to the use of reducer The motor, even if a force is small, but the reducer can single girder It will be transformed into a powerful force, this principle is used to work. Electric winch working mechanism of internal is through the vehicle electrical Force drive motor, and then drive drum, a rotating shaft, planetary gear monorail wire rope hoist A series of parts and products, strong torque, when the torque is back to the drum, ultimately drive the winch operation, The reducer winch is used in most of planetary gear, advantages of this component is very obvious, although small, but The reduction effect is very big, and the service life is longer, usually installed in a narrow space, therefore it is small Features on the show. In addition, between the motor and the speed reducer and a manually controlled clutch,SSDHL electric chain hoist We can directly control, and braking unit in the drum interior, when the noose taut, the drum will be automatically locked.

Ring chain electric hoist is introduced and the scope of application:

Ring three phase electric hoist weight is generally 0.1 ~ 60 tons, lifting height of 3 to 120 meters, the characteristics of electric chain hoist: performance of advanced structure,small volume, light weight, reliable performance,
three phase electric hoist
convenient operation, wide application range, is very convenient for lifting, loading and unloading, repairequipment, hoisting goods, it can also be installed on a suspended steel, curve track,jib crane rail and fixed lifting hoisting heavy weights.
Structural characteristics
1.5 ton electric chain hoists electric hoist structure characteristics: the product structure: the selection of high strength tensile shell or die cast aluminum housing, with a thin wall extrusion molding process of precision manufacturing, small volume, light weight, high strength. Standard forpower chain hoist with gearbox system independent, two coaxial transmission gears sealing transmission, using long-life oil bath lubrication system. Electric hoist overload protection device of powder metallurgy clutch, brake disc DC electromagnetic brake use, large braking torque, stable, fast, low noise.

it must be manufactured in accordance with the elevator specification.

 it must be manufactured in accordance with the elevator specification. The specification requires a minimum diameter of the roll is drawn 35 times the rope diameter , which is in the choice of type and structure should be taken into account. Grain elevator car 's exterior features is having a hand wheel ( 20 ) , you can use it to complete the current is interrupted when lifting and lowering movement. To this end , the elevator must be installed in a manual brake release means which enables the tension of the brake spring against the brake current is interrupted.SWF 's new elevator winch from the weight of 500 kg slaughterhouse used by a winch is bolted by foot "U" shaped beam chassis electric hoist structure, it 's two points to both sides of the rope , Ken rope hanging from a beam ends ( 21 ) also known as lateral sliding winch winch is a standard type ( with a foot bolts ) , but there are two separate split a rope . Its two rope is wound on the reel so career : When a rope to relax, another rope around tight. Rope reel slot is continuous ( L or D ) . Each rope has a row of rope . Two parallel rows of rope attached , and make parallel movement ( 2 ) in the same direction with the longitudinal axis of the roll . Electric hoist with other machines, but also repair and maintenance. But unfortunately, the machine contrary , hoist repair and maintenance is often neglected , especially those where tetrahedrite occasional use of electric hoist . In addition, because it is hung aloft ( especially fixed suspension )

Manual Hoist specifications of the hoist rope securely fixed

 With the provisions of models, specifications of the hoist rope securely fixed . Hand hoist wire rope , synthetic material is generally metal , so it must be done in full respect of maintenance , in order to not affect the normal use of the device . Usually comes with electric chain block a conical squirrel cage rotor brake motor (or reprovision cylindrical electromagnetic brake rotor motor ) drive , weight is generally from 0.1 to 80 tons , lifting height of 3 to 30 meters . In addition to electric hoist can be used alone , but also with manual or electric car chain assembled together , hanging in the roof of the building or crane beam.

Electric hoist is a remarkably versatile small light lifting equipment . No need to add oil to use in the monorail trolley operation , are not allowed to use other than to replace the rope with a supporting rope ; operation, the rope should be kept clean to prevent the adhesion of mud and oil into the machine , affecting the normal use or wear and tear plus clamp . Electric hoist, electric hoist short . Most electric hoist used by people on the ground following the manipulation button can also be manipulated or wired ( wireless ) remote control in the cab .

hoist equipment mast distortion correction method can be eliminated

Electric forklift mast distortion correction method can be eliminated. When bending and twisting deformation is small, allowing the cold calibration correction method applied motorized chain hoist static load . When bending , distortion is too large, correction is difficult to use cold , heated correction should be heated to minimize the heating zone , the heating temperature is generally not more than 700 ℃, and slowly cooled so as to increase brittleness.three phase electric hoist mast crack repair : If the inspection found cracks should be repaired .repairs should be carried out before the forklift mast correction , maintaining the inherent straightness mast .grinding cracks to expose the metallic luster , and then carefully examined to determine the boundaries of the crack extends 10mm at the boundaries of the drill ¢ 5 - ¢ 8mm of limiting, holes.

Manual Hoist it selected for intensive applications

With a range of quite different , it selected for intensive applications , the various parts of the program  that is very closely coupled , such as word processing software, interactive graphics system . The VB and  Delphi (c + + builder and Delphi as Inprise company with products that use different languages ??in  addition to the remaining features almost identical ) code is very suitable for those large , multi-  interface , high degree of independence module , low coupling management system, especially with a large  database on the processing application . VB and Delphi are RAD (RapidApplicationDevelopment, rapid  application development ) development tool , which can greatly improve monorail trolley programming efficiency , but their  underlying code execution efficiency and flexibility , but not as good as some of the VC. According to the  characteristics of the test system , I chose to develop Windows2000 VisualC + +6.0 based monitoring and  control procedures. 4.3 Monitoring 4.3.1 test software development process control IPC is responsible for  the system test process control and management, but also to achieve a self-test function cargo belts of the system ,  and therefore , the test flow control sub-module is the key to the entire test module module , specific  processes such as Figure 4-1. The following brief description of what the testing process in several key  questions: ( 1 ) Although the test system has a self-test module , but in the entire testing process, the  test system is constantly monitoring the current state of each underlying device , if there are problems ,  issues the nature of the quick decisions and take appropriate measures to deal with . Such as laser  distance sensor error , the test software will automatically restart the device and prompts the operator

indicate Manual Hoist unauthorized logo may not be used

The tool should be accompanied by a written explanation detailing the precautions to be taken , and indicate unauthorized logo may not be used. The tool should be handed over to authorized personnel .
Door Protection 5.8.5 workbench
Electrical safety switch should be set when the door is not completely closed, lifting platform should stop or not start.
5.8.6 Emergency Operation
It should be at the bottom with a power failure or malfunction in the emergency operating device platform so the Manual Hoist decline , and there are clearly marked ; the device should continue to rely on force control. Such as when using the control handle , the handle of the operation should be consistent with the direction of the direction of motion control functionality , release the control handle when should automatically return to the " stop" or intermediate position.
5.8.7 Anti- personnel cut protection
Greater than or equal to 3 floors in layers lifting platform, when the horizontal distance between the table and the floor wellhead less than 0.5m, the table should be set at the bottom of the surrounding anti-collision device, when the decline encounter obstacles should stop the lifting platform .

Our most common lifting equipment with electric hoist,Winch Snatch Block

Chain hoists, lever hoists, cranes and other lifting equipment line tackle manufacturers, the following is related news Select Details lifting equipment of four principles.

     Our most common liftech winch snatch block equipment with electric hoist, chain hoist, lever hoist, etc., because of different places, so choose a suitable own lifting gear is very important.

     1, should be considered officially put into use for the construction lifting equipment, such as cranes hoist can be installed, and then use it to carry, lifting other objects and equipment.

     2, according to the liftech crane wheel                             construction site conditions, such as plant (room) height, span, required to ensure the quality and safety of production.

     3, consider the construction period, in order to speed up the progress, improve work efficiency as a precondition to select lifting equipment.

     4, should try to reduce the number of lifting gear, give full play of a machine, to reduce duplication of handling operations.

Chain hoists winter maintenance

Average winter temperature is low, manual hoist is more need some lubrication and maintenance to ensure smooth operations. In cold operating environment operation, if irregularly inspect hoist maintenance and lubrication will lead to all parts subject to wear chain hoists , chain hoists not only severely shorten the life , but also may lead to accidents . Chain hoists winter maintenance : 1 , manual liftech single girder chain hoist maintenance is a top priority , it is timely for the chain lubrication. 2, such as long-term placement , should be handled in a timely manner and rust cleaning and maintenance work and test run to see if it is working properly . 3 , regular maintenance manual hoist the main parts detection , and resolutely put an end to security risks liftech 1 ton chain hoist appear. 4 , brake parts should be kept clean , cut out regular checks to prevent sudden Zhidongshiling work occurred weights from falling . 5, using the manual hoist rain , rain facilities should be set up . 6 , keeping dry parts chain hoists , chain hoists place after the operation is completed dry steel beam clamps environment . Avoid high temperature and chemical areas.Chain hoists friction plate is one of the very important parts chain hoists , chain is inverted indispensable constituent elements , but also one of the main wearing parts. Its role is to tightly engage the friction stability and prevent the emergence of the phenomenon of chain hoists decline .Long chain hoists three friction plates using the latest advanced technology, the friction surface to join wire to increase the coefficient of friction to ensure the stability of the friction plate friction , long life , safety , and as one of the main wearing parts chain hoists , chain hoists easy to replace the friction plate conducive maintenance.
  

tons of chain Manual Hoist

 Chain hoists price quote latest and most complete price chain hoists , chain hoists offer different brands , the domestic price of imported chain hoists and chain hoists in this we are able to provide . Here's to the customer in accordance with the recent focus of consulting three tons of chain hoists price you a price standard , this standard is for reference only , the real price based manufacturers advice prevail.
3 tons Japanese elephant chain hoists price 603 yuan
3 tons TOYO liftech mechanical lifting devices  price 568 yuan
3 t CK HSC chain hoists and chain hoists price 498 yuan
3 tons Shanghai Yuan novice pull hoist price of 180 yuan
The above prices are the price of 3 meters of chain hoists , and if you want to lengthen the chain , the chain according to the manufacturers of different materials at different prices are different. Due to the high rate of import chain hoists , chain hoists makes authentic imported than domestic prices tend to be several times higher . Therefore, according to the above quoted portion of the product, in terms of purchase of three tonnes of chain hoists it from the price and the use of environmental considerations to select the appropriate chain hoists choose to buy. Specific de liftech horizontal lifting tails of the purchase method to view the shopping process , according to the process to buy safe and at ease. Here's to the customer in accordance with the recent focus of consulting three tons of chain hoists price you a price standard , this standard is for reference only , the real price based manufacturers advice prevail.

Manual Hoist chain hoists use a long time, you may encounter

  Proof chain hoists use a long time, you may encounter : card chain , skid brake dead cars and other issues, how do we deal with these issues without delay our normal use it The following four aspects:
    First, the proof chain hoists very important routine maintenance checks should be regularly corresponding mechanical parts for maintenance testing, look at all the m liftech mini electric hoist echanical parts , such as whether there is rust , must be promptly applied lubricants. Proof chain hoists chain should always use lubricant maintenance, a chain to prevent rusting card chain , and secondly, is to extend the life of the chain .
    Second, the proof chain hoists friction plates regularly checked or replaced , it should be in frequent liftech steel beam clamps use seven days to do an inspection , if found friction plate with oil , should be replaced immediately ; such discovery should replace the friction plate is thin , as above both of these problems can cause instability and explosion-proof chain hoist brake slip .
    Thirdly, proof chain hoists brakes have a ratchet , a pawl ratchet next , such as a spring detent on the loose will cause chain hoists without brakes.
    Fourth, the proof chain hoists chain guide wheels do check regularly to see if there is squeezing the guide wheel , deformed , broken teeth and other emerging, such as size, etc. have found a chain and deformed , they should immediately replace the corresponding proof chain hoists Accessories .
Sanlong lifting to do the customer is responsible for quality products and service to meet your needs

these Manual Hoist can accurately and reliably stop at the desired position

Run institutions brake mounted on the crane , luffing rotating bodies and institutions , these institutions can accurately and reliably stop at the desired position . If installed in the lifting mechanism , in addition to the role played in the braking load state , but also to adjust the rate of decline of the object.liftech steel beam clamps
Brake action by way of closed and open ; according to the structure of the block type and belt ; by transmission of mechanical transmission , hydraulic and electric types . Generally , normally closed two- block brake shoe mostly common in crane . The manual liftech wire rope electric hoist hoist generally use a one-way ratchet friction brakes , self braking under load , very convenient.
Brakes are very important parts of lifting equipment , hoist pull the opponent is also true , its main role is to make the moving parts of a device ( mechanical movement ) slow down , stop or remain stopped other functions

Chain hoists very small , of course, is also very light weight

Chain hoists very small , of course, is also very light weight , regardless of whether the limited space for freedom to manipulate ; Yale chain hoists are called all 360 chain hoists are dead because they can operate without a full range of flexibility high ; its material and workmanship is first class , not only looks upscaleCDD electric chain hoist practicality is also excellent .
    360 degree rotation Yale chain hoists Features : 1,360 degree rotating hand chain hoists Yale revolutionary 360-degree angle of operation , the operator can make almost any location , whether in space -constrained or lifting items at the top are able to effectively control the hoist work. 2,360 degree rotation Yale chain hoists and even allows use 0.5 ton electric hoistrs to operate from the side , so that the level of traction and tension easier . 3, due to the flexibility of operating angle , the user can operate away from the danger zone following heavy . 4 , all of the components are manufactured using high quality materials , and the use of additional anti-corrosion coating and painting process to increase capacity

Electric wire rope hoist on the beam installation method

In addition to wire rope hoist can be used alone , but also can be used with electric trolley and crane used in combination , but in many cases it needs to be installed to run work on beam, recently there are many customers call to ask , how to install electric hoist word steel , the following introduction, I hope for your help on the hoist installation. Ready to install electric hoist equipment and accessories such as screws , first , to the hoist line and the control box link is good, then the electric car will be assembled with the I-beam to determine assembled, the liftech wire rope hoist limited controller connected, if hoist is 380V voltage control , we can use the wireless remote control lifting equipment , and finally, the electric hoist mounted on the electric car , according to the line connecting the color , the installation is completed. Electric hoist and install car after I-beam , to trial before the normal use of cranes, ensure that the liftech wind tubine hoist equipment and installation is no problem, before normal work

Double drum lifting equipment

Two rolls have a connection with the shaft in different ways , one of which rolls through the wedge bond or liftech winch hoist thermal loading and spindle fixedly connected together, called fixed roll , also known as the death roll ; another roll slide mounted on a spindle , the spindle is connected via a clutch , so called swimming volume reduction, also known as live roll. The purpose of this structure is given to the production process to enhance the mine an elastic elongation of the rope under the load terminals , to enhance the level or multi- level conversion ascension possible relative liftech wind tubine hoist rotation between the two reels need to adjust rope length , making the two containers are aligned with the wellhead and the bottom level.

TD bucket wire rope hoist Features

 1 drive power is small, the use into the feeder, induction discharge, large capacity hopper intensive arranged in almost no time material to enhance the material back and dig the material and, electric cable hoist therefore, less reactive power.
  2 wide range of upgrade, TD-type bucket elevator on the types of materials, less performance requirements, not only can improve the general powdery, granular materials, but also enhance the larger abrasive materials. Sealing, environmental pollution less.
  3 good operational reliability, advanced design principles and processing methods to ensure the reliability of the machine operation, no down time more than 20,000 hours. Lifting height high. Smooth hoist operation, so you can upgrade to a higher level.
  4.Feeding long life, take the elevator 1 ton chain hoist inflow style, without using excavating bucket, squeeze and collision phenomenon rarely occurs between materials. TD-type bucket elevator to ensure that the material in the design of a rare scattered when feeding, unloading, reducing mechanical wear.

Electric wire rope hoists use precautions

An electric hoist by hand manipulation, the manipulator should fully grasp their security procedures.
2 electric hoist in use by plate lifting clamp someone to check , pay particular attention to the situation of wearing parts , found fault should be immediately cut off the main power supply , take timely measures , and carefully recorded .
When using electric hoist case 3 , the absolute prohibition is not allowed in the environment and exceed the rated load and nominal closing per hour ( 120 times ) for use under .
4 electric hoist use, must keep enough oil , and lubricants to ensure a clean and should not contain impurities and dirt.
5 When using electric hoist prohibited hoist and trolley by people , standing in lifting objects beneath strictly prohibited , prohibited under the swing state of lifting, hoisting and forbidden objects connected to the ground .

Electric wire rope hoist maintenance

When an electric hoist does not work, do not allow the weight hanging in the air to prevent permanent deformation parts .
2 electric hoist lashing cargo maintenance work must be carried out under no load condition.
3 Adjust the amount of electric hoist brake decline , should ensure that at rated load, the amount of brake slipped S ≤ V/100 (V for the load within the next minute steady lifting distance ) .
4 When oiled rope , you should use a stiff brush or a small piece of wood , prohibited direct hand rope to a working oil .
5 rope discard criteria : wire rope inspection mini electric hoist and scrap reference GB/T5972-1986 " wire rope lifting machinery inspection and scrap of practice " implementation.

Single Column aluminum lever hoist

The series of products for indoor, widely used in star hotels , supermarkets and other industries in the lobby , aerial work inside the plant , with a lift balance, easy to operate, can enter the general hall , free access to the elevator and less power consumption , pollution , not to hurt the ground work , work that can be used against the wall and stuck his job , working no dead ends . Single column aluminum gantry cross- coupled electric lift frame attachment , very suitable for theaters , auditoriums , churches and other maintenance work. The inter- frame gantry assembly easy and effortless operation , mobile and flexible, can span up to 1.1m height vertical drum lifter seats and other obstacles , and on the steps of a stable job. High strength rectangular steel production, good rigidity and stability. Equipped with casters , flexible . Both ends of the frame span adjustable, can be applied across different obstacles requirements. Both ends of the frame vertically adjustable and can be operated on a certain slope of ramps or stairs. Aluminum double-column lift : new design of a new generation of products , the overall use of high-strength overhead crane refining due to the high intensity profiles that lift and swing minimal deflection . Double- masted column structure , carrying capacity, large platform area , excellent stability , flexible operation, easy to implement . It is lightweight appearance, can play a maximum lifting capacity in a very small space. The lift is widely used in factories, hotels, buildings , shopping malls , railway stations, airports, stadiums and so on. Can be used as power lines , electrical lighting , overhead pipes and other installation and maintenance, cleaning and other high-altitude

Introduction to the electric hoist gantry crane girder production technology (box)

With the continuous development of Hoist equipment economic development, the manufacturing level has been rapidly CDD Electric Chain Hoist. Electric hoist gantry crane is an indispensable equipment in building materials market, the manufacturing quality of high and low, directly affect its performance. Especially the metal structure manufacturing quality, plays an vital role in the safe use. Now to the rated lifting a total quality of 10 t electric hoist gantry crane as a case, introduced the production Hoist and trolley, hoping to play a good reference for similar projects. The related cheap wire rope hoist parameters are as follows: electric hoist gantry crane: rated lifting the quality of 10 t; Design chief, 36 m; Door leg span 24 m; Hoisting height 9 m; The beam width 6 m; Single girder structure, the door legs into the "eight" glyph stress; Wheel bearing, two-wheel driven. Whole girder body into the box structure is long and narrow shape, the girder web plate thickness is thinner, weld, and mainly concentrated in the top side, large amount of welding. Which is the most difficult to control point is: the main girder camber, web verticality, lateral bending, and 24 m span. Because the making craft of main girder has certain representativeness, door for other structures such as beam under rigid legs, manufacturing has important reference, in the only for the three of the crane structure of main girder of the production process, talk about manufacturing technology and quality control.

Ningxia special manual hoist for the first time all year zero accidents zero death

Ningxia News Network ( correspondent Li Li ) in Ningxia in 2007 to carry out special rectification lifting chainb lock based action since special equipment hidden investigation , seven hundred percent goal completed. Up to now , the region is not a serious security incidents over special equipment , not killing one person , the first time the annual Special Equipment Safety zero accidents zero death . It is understood that since last year, manual hoist dispatched inspectors to 4484 passengers, checking units 2029 , 9278 sets of inspection equipment , monitoring directive issued 954 copies of the book , discover hidden equipment 1247 units, 195 units stop running , rectification 1052 units, for investigation Case 81 , a report to the government at all levels major hidden problem 35 times , effectively ensure the safe operation of the region's special equipment . With the rapid economic development of Ningxia , the region's growing number of special equipment . In order to eliminate safety hazards special equipment , special equipment in 2007 hidden investigation and rectification work, Ningxia quality supervision departments at all levels in order to determine the metallurgical industry, lifting machinery , automotive gas cylinders , focusing on monitoring equipment as the key to the implementation of the tripartite responsibility as the starting point , closely linked to grab focus , expand areas , promote the deepening , horizontal deployment , vertical development of work plans , taking corporate self-correction based, county ( city ) Council a comprehensive inspection , investigation and technology institutions , the PUC checks, district Bureau inspector methods , focus areas, seize the key equipment, Dingsi eliminate potential dangers , has launched a special rectification lifting machinery , automotive cylinder special rectification actions. Lifting machinery for the use of units in the region of 1524 units with lifting machinery , and 81 475 sets of metallurgical enterprises lifting machinery examinations were conducted . Since May 18, 2007 began , the region's quality supervision departments at all levels to give up holidays , carried out for a period of seven months of special work cylinder car , taxi and bus companies to the site office , for businesses and users, by law only for five points without qualification modified vehicle safety inspection and the use of gas cylinders registration , supervision coordination 1958 without qualification converted natural gas vehicles for rectification , the establishment of a vehicle cylinders database , the implementation of the dynamic regulatory and administrative penalties and banned, initially established a long-term mechanism to adapt to dynamic regulation of car cylinders , and yielded good results. In addition, there had been an accident , there are security risks rectification in place yet , the foundation is weak , poorly managed , the number of devices and more focused business units focus on monitoring and regulation of major hazard as the focus , the formation of district , city and county ( district ) , security township (neighborhood ) and four companies of special equipment safety supervision and management organization, hiring staff and coordinators of special equipment information and build quality supervision station , eliminate regulatory blind spots , forming a " vertical in the end , transverse to the edge " of special equipment regulatory network , expanding the scope of regulation , supervision tentacles extended to achieve a secure special equipment " early discovery, early control , early treatment, early prevention ." According Ningxia 2008 investigation and management of special equipment hidden embodiment , Ningxia will continue to implement this national production safety committee on safety, " hidden Governance " work requirements , around the " two sessions" , "Olympic " and " Ningxia Hui Autonomous Region was established fifty Daqing "three priorities, in three phases , from special equipment safety management, safety and other aspects of the situation , carry out the region's special equipment hidden danger governance.

Use electric hoist the note

Use electric hoist the note
Electric hoist is good, but when use some noteworthy aspects:
1. When lifting can not sew, tilt manual hoist heavy objects you for your cooperation.
2. When the hoist lifting, it is important to ensure that at least 3 ring steel wire rope, rope cylinder force is too large to prevent the wire rope fell off the rope drum.
3. Regularly check whether the installation of the elevator.
4. Please don't use don't overload the hoist equipment weight lifting objects when using the elevator.
5. The operating personnel please don't in the case of alcohol, medication and illness elevator operation.
6. It is forbidden to anyone standing when hoist lifting heavy objects in lifting the weight of below.
7. To manipulate when the steel wire rope, please wear with thick gloves, please don't let slip from your hand, and wire rope lest cause slippery hurt or injured.
8. The elevator to carry people in any form, or as the elevator promotion tools.
9. Please do not arbitrarily or welding of elevator parts.
10. The micro electric hoist elevator installation position must choose in consistent with the need, and easy operation.

Electric hoist is mainly divided into wire rope electric hoist and chain electric hoist two kinds big

Electric hoist crane when a car and improper operation method, electric hoist can make crane swing accident. Electric hoist crane hoisting, should stop when wire rope or chain taut, electric hoist by direction again for hook, hook shaking while lifting workers chainb lock check whether "hang up; Don't too hard, when the electric hoist lifting when lifting objects from disorder may speed up the lifting; Electric hoist lifting crane content not too high, generally more than safe passage highest 0.5 m as well. Electric hoist crane runtime. Under the conditions allow, the manual hoist hanging from the ground 0.5 m or so, the rigger balance objects from behind electric hoist crane, and under the rigger command to bypass obstacles.
Don't intermittent electric hoist run time, in the long run, the best to run either for a long time as well. Electric hoist at runtime should guarantee the smooth ", if electric hoist crane swing or jitter, should be in the run run while stabilizing hook, not allow it to shake or place. Electric hoist fault occurs is normal, the service life of equipment has its specific problems we think of a solution. Sometimes, the hoist motor voltage is normal, but the gourd is not working, it should be considered for other reasons, such as: motor burned, need to change the motor maintenance. Chain electric hoist long-term need not, poor maintenance of brake wheel and the end cover rust, brake wheel does not open, when starting motor only "hum" sound, turn up, block doesn't work. At this time, should remove brake wheel, cleaning rust on the surface, and test again; Serious motor chamber, also can make the motor does not rotate, found that this kind of situation, should stop to use, must be for repair or replacement motor, to guarantee the normal work of the gourd. In addition, it is forbidden to use electric hoist overload in production, when the goods excessive overload, explosion-proof electric hoist crane didn't move the goods, the motor only thrum "hum", instead of running, serious when burning motor, or even cause an accident, should immediately stop at this moment, to reduce the goods, make the gourd work under rated power.