Wire rope hoistin industrial applications

     Wire rope hoist  series is designed to meet and exceed the requirements of industrial production, we can according to your specific lifting needs to provide you with reliable solutions. Wire rope hoist is designed with maximum safety and comfort, and has a range of other features can be customized to meet your specific needs.
       Wire rope hoist Standard Performance: Starting weight range: 60kg-7500kg, compact design with maximum headroom, three-phase power and reliability of the classic contactor control, the control voltage 48V, durable cable Communicator, the standard electric upper and lower limit switches improved security, protection class: IP55, standard two-speed motor to achieve a gentle operation, Durable galvanized lifting chain, longer life.
       Mechanical friction torque limiter to protect operating personnel and equipment from accidental overloading, built-in control panel design, easy maintenance, the car runs standard configuration for inorganic frequency control, a variety of different car structure offers you a wide choice.
       Newly purchased  rope hoist, how to use, in the course should pay attention to what
          1. After a new installation or installed after dismantling the Wire rope hoist, should first be empty commissioning times.
2. Dynamic load test is based on rated load weight for repeated lifting and move around the test, trial and check the mechanical transmission parts, electrical parts and connecting parts are normal and reliable.
3. Wire rope hoist by hand manipulation, certificates, operator safety procedures should be fully mastered, pulled oblique hanging crooked prohibited, prohibited non-post personnel.
4. Not press both the Wire rope hoist in the opposite direction of the flashlight door button.
5. Lifting  hoist equipment  should be checked before the mechanical part, wire rope, hook, stopper, etc. should be in good condition, check the electrical part should be no leakage, grounding device should be good. Each lifting weights, lifting off the ground at 10cm should stop and check the brake situation, to work only after confirmation well. Open operation should be set up anti-canopy.
6. Lifting objects to be tied securely, and in the center of gravity. Hoists walking, weight is not too high from the ground, from man's head crossed prohibited weights, working gap not place heavy objects hanging in the air.
7. Wire rope hoist in the lifting process occurs odor, heat should immediately stop checks, identify the causes, treatment may continue working.
8. Electric switch to start using the suspension cables, insulation must be good, must slide freely and correctly push-button operation and attention of people standing position.
9. In lifting, due to failure caused by heavy decline, it must take urgent measures to no weight at decentralization.
10. Vertical lifting heavy lifting must be done, and not stayed heavy, lifting the weight is not hanging unclear.
11. After the work is completed,  Wire rope hoist  should stop at the specified location, hook rises, and cut off the power.

Gantry lift hoist safety rules

1 gantry  lift hoist  before work
a. On the brakes, hook, wire rope and safety devices and other components according to the requirements of the check card, it was discovered anomalies, should be excluded.
b. Operator must confirm to go Taiwan or track when no one can close the main power supply. When the power supply circuit breaker locking or signs, the persons concerned should be removed only after the original closing the main power supply.
2 gantry lift hoist work process
a. First class when lifting heavy objects should be hanging height of 0.5 meters from the ground after the heavy down again, check the brake performance, reliable after confirmation, then normal operation.
b. Operator in the job, should be required for the following operations-ringing alarm.
① lifting, landing weight; starting big car when traveling.
② gantry lift hoist with clear line of sight through, to continuously-ringing alarm;
③ gantry lift hoist with close cross inside another lift hoist.
④ when lifting heavy objects close to the staff.
c. Operation should be run under a unified command signals.
d. Work in a power outage, should all of the control handle to the "zero" position should be checked prior to re-work the lift hoist movement is normal.
e.  hoist and trolley  during normal operation, is strictly prohibited to open anti-vehicle parking brake; transform large trolley movement direction, the handle must be placed in the "zero" position, the agency completely stopped, can the reverse drive.
f. There are two hooks of the lift hoist, in the main, auxiliary hook for hook height with time and the two are similar, the main and auxiliary hook must work alone, so two hooks collision.
g. Two allowed two hook lift hoist hook lifting two objects simultaneously; does not work in the case adjust the brake lifting mechanism.
h. Are not allowed to use extreme position limiter parking is prohibited in the case of a load lifting mechanism to adjust the brake.
i. Strictly enforce the "do not hang ten" system:
① command signal is unknown or arbitrary command does not hang;
② does not exceed the rated lifting weight lifting;
③ spreaders unreasonable or not the object is not strong tie to hang suspended;
④ hanging objects floating on someone or put other items are not hanging;
⑤ brake failure or other safety device brake not hanging;
⑥ hanging heavy traffic processed directly without hanging;
h. If abnormal, immediately shut down, check the reason and immediately removed.
3 gantry lift hoist work
a. The hook rises to a certain height, Hoist and trolley  stops at the specified location, the controller handle in the "zero" position; Pull off the protective box switch handle, cut off the power.
b. Routine maintenance.
c. Do shift work.

Combination of low headroom rope hoist trolley

        The use of space is limited, so in these particular workplace has a special hoist equipment , "low headroom" series hoists, compact design, superior performance, in line with the latest international DIN, FEM standards to the technical level of similar foreign products . For machining, assembly, warehousing and other material handling options, especially for plant height restricted spaces. Rated load range from 1/4 to 6 tons, matching push-type or  hoist and trolley .
        Rotary low headroom trolley combination electric chain hoist can walk within a very narrow curve and not bump or scratch tracks. As a compact form factor, the track can be built with walls close.   rope hoist  operation using NF series helical gear reducer drive, both sides of the drive wheels through a six-rowed steel transmission torque, transmission torque, high reliability, avoiding the flat key shear failure condition, and that such transmission is also very conducive to hoist run part of the installation regulation; due to lower requirements for roof height, so this feature is available in low headroom existing structures or new structures to achieve cost savings. This section requires  rope hoist is ideal for low headroom, interlock and turn of most single-beam track applications, but also applies to other types of tracks.

wire rope hoist operation mode

    Divided into  Wire rope hoist  and  load chain ，  today introduces the wire rope hoist is run.
       wire rope hoist  should be checked after unpacking appearance whether bumps, damage, etc., confirm hoist intact without impairments, with 500V megger coil connector on the shell of the insulation resistance of not less than 0.5MΩ, if there is insulation resistance too low, indicating that the  rope hoist motor damp, it should be dried. Electric wire rope hoist installation then check again after all, the wiring is correct, the supply voltage matches to the empty load lifting: the main switch is flexible, which can control up, down, wire rope  rope hoist limiter flexible action, running without abnormal noise, then a decent load: ie lifting objects from the ground and repeated movements. To comply with wire rope hoist manufacturer may reasonably require in order to protect the motor function of the duty cycle of not enacted continuous use  rope hoist. Whether it is normal in the rope drum rope wound on; remaining at least three times, otherwise it will slip.
      There is also a special  rope hoist  safety equipment, explosion-proof  rope hoist, the proof in the form of "flameproof" explosion exposed parts of the gourd with a special non-sparking material, explosion safe and reliable performance. When the plant is filled with an explosive mixture, you can ensure the safety of the premise is to improve working conditions, improve labor productivity, a powerful tool.

How to choose the gantry lift hoist

   Gantry  lift hoist  s a lift hoist in the most common form, is mainly used for outdoor yard, yard goods, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, bearing girder installed under two feet directly in the ground walking on the tracks, you can have both ends of the main beam overhanging cantilever.
      Gantry  lift hoist  according to the structure and use of a variety of categories, according to the door frame structure can be divided into: Full gantry cranes, semi-gantry  lift hoist  , double cantilever gantry crane, single cantilever gantry  lift hoist   according to press girder structure of : single girder gantry lift hoist, double girder bridge crane, according to use can be divided into: ordinary gantry lift hoists, gantry cranes hydropower stations, shipbuilding gantry lift hoists, container gantry cranes. Well, according to the need to use a different choice of gantry lift hoists how it
1, single girder and double girder gantry lift hoist used
Under normal circumstances, from the weight of 50t or less, in the span of less than 35m, no special requirements, should choose to use a single main beam. If you require a large gate leg width, high working speed, or frequently lifting heavy pieces, grew up pieces, you should choose double girder gantry crane.
2, span, and boom length
Span gantry crane crane itself is affecting the quality of the important factors. Selection, to meet the conditions of use and  Hoist equipment  conform span series of standards under the premise of the span should be minimized.
3, to determine the principles of Tread
(A) along a gantry lift hoist to meet stability requirements of the track direction;
 (B) the dimensions of the goods to be able to pass the legs flat steel;
 (C) pay attention to the track B and the span S proportional relationships, and generally track B = (1/4-1/6) S.
4, gantry lift hoists pitch size determination
At work, gantry lift hoists and yard external dimensions of goods and transport vehicles between channels should leave some space dimensions, in order to facilitate loading and unloading operations. General transport vehicles in the span of loading and unloading, should be kept above the door legs with 0.7m spacing. Spreader should not work with the transport vehicles with more than 0.5m spacing, cargo interlude legs, there should be more than 0.5m spacing.

rope hoist safety device - Anti-pull oblique hanging crooked

     Rope hoist is one of the procedures specified "no pull oblique hanging crooked", but in the actual lifting process, due to the construction workers working conditions, work experience or objective conditions caused widespread pulled oblique hanging crooked phenomenon. Once that happens, it is easy to damage the  rope hoist, ranging from making cable,  wire rope   scrapped, while in the whole  rope hoist scrapped or personal injury, resulting in some economic loss, seriously affecting the construction production. At present, none of the design of all  rope hoist lifting device against crooked pulled oblique, so there are significant security risks.
First, the design of anti-pull oblique hanging crooked safety device
      For such problems exist in the work, in practical work designed a pulled oblique hanging crooked can prevent a device, the device is the use of oblique hanging crooked pull rope when a certain deflection angle, so that the  rope hoist mounted on limit switches work, which automatically disconnect lifting contactors, limit lifting capabilities.
      This device not only has anti hanging crooked pull ramp function, but also has a high limit function. The practice of using the operation, the effect is very good, reliability is also high, pulled oblique hanging crooked can prevent the phenomenon.
Second, the structural design
1, the mechanical part
      The device consists of the mechanical part of Shengka @ 15mm, 2 welded assemblies with a stopper components. 1 Shengka is soldered with the balance wheel relative to the center of the arc at the lowest point of the housing (on the  rope hoist), the component l and the stopper is fixed by means of bolts, and the component 2 is fixed to the balance Shengka Round 2 rope (rope under 2 will not change this characteristic spacing), and finally by adjusting the position of a component, making travel limit feeler placed vertically in the center hole assembly 2.
      (A) design principles to be taken into account in any one direction can play a protective function, so in the design of component 2, the center of its design into a round hole, thus making all directions pulled oblique hanging crooked anti-skew angle of the same; You can also use a 360. Within the scope of the work to achieve the limit switch off the action, thereby protecting  Wire rope hoist  from damage.
      Anti pulled oblique hanging crooked setting angle 4. Component 2 is fixed on a wire 5. Anti-travel limit switch contact lever pull oblique hanging crooked size of the angle to be adjusted according to the actual working conditions, For the angle becomes large, there are three methods: the expansion of the central hole assembly 2; the lower sensitivity limit switch; Component 2 will be slightly upwards. To transfer a small need to increase the sensitivity of the limit switch assembly 2 or slightly down shift.
      (2) Work First, according to the actual work situation, set the appropriate skew angle rope, when pulled oblique hanging crooked angle greater than the set value, the skewness of the rope was enough to make the center hole assembly 2 hole edge touches the limit contact bars, cause limit work, cut off  rope hoist lifting contactor control circuit, which play a protective role. Once inside the rope back to the set value, the limit is also touch lever back into place, namely lifting contactor return to work.
2, the electrical part
      c1 is lifting contactors, c2 is decreased contactors. The main circuit is powered, press A1, c1 to work, lifting hook. When hanging crooked pulled oblique angle is greater than the value of the limit switch settings, sT contacts open, c1 contactor to stop working, ie lifting hook to stop time, press A2, c2 can work, then hook only fall not rise, and thus play a protective role.
      The height limit function of the device is in the lifting operation, if failure occurs due to malfunction of firearms off, at which point the driver's thoughts without concentration, did not release the A1, so keep lifting hook. When the hoist hook fast approaching, the time has also been close hook travel limit switch contact bars, resume a lift, it will surely bring feeler shifted or on the roof, causing ST disconnect, C1-off coil along electricity, also stopped lifting hook, played height limit function.
      The device to be tested in practical applications, and the simple, practical, easy to install, low cost, high reliability, energy 360. Played within the scope of protection and off the fire stopper in failure, but also play a height limiter function,  rope hoist play a very good safety results.

Hoist equipment rated capacity

Rated weight  Hoist equipment  during normal operation, allowing the heavy lifting or material with separable or spreader attachment (such as grab, electromagnetic chuck, balance beams, etc.) the total mass in units of t. For variable amplitude lift hoist, electric hoist as tower crane, truck crane, electric hoist, electric hoist gantry crane boom-type lift hoist, etc., with their nominal weight is amplitude variation. Its nominal nominal weight refers to the minimum amplitude when  lift hoist  enhance safe working conditions to allow the maximum rated capacity, also known as maximum weight. To be able to represent several amplitude range from the weight, sometimes used to represent fractions, such as 15/20/50 (nominal weight means that depending on the magnitude divided 15,20,50) three.
Often spoken from the weight, all refer to rated capacity. In order to design, manufacture series of standardization, the State developed a series of standards from the weight, lifting weight lift hoist machinery series see GB GB785-65.