Lever hoist
Its main features are:
1. Advanced structure, the use of safe, reliable and durable.
2. High efficiency, easy operation and comfortable.
3. Small size, light weight, easy to carry.
This product is suitable for factories, mines, construction sites, docks, transportation and other occasions, equipment installation, cargo lifting, stationary objects, the ideal tool for lashing and traction, especially in traction at any angle and in small venues, open jobs and No power in the case, but also demonstrate its superiority.
Chain lever hoist features:
? All for structural steel
? Grade alloy chain
? All for gears
? Gear and the rotation of the shaft part has a bearing or sleeve
? Product surface after spray treatment
? Professional alloy hook to meet the product overload
? Products can meet 150% of rated load weight
Wire rope pulling hoist:
Wire rope pulling hoist, also known as rope pulling machine. Is a new, efficient, safe and durable lifting products, with lifting, pulling, tensioning three functions, the whole structure, reasonable design, high safety factor, long life, especially for field with no power source next.
The aircraft quality aluminum chassis Chain Block made of high strength die-casting, supporting the use of wire rope with a particularly high breaking force and abrasion resistance, according to customer needs configuration phase for the rope length. Mainly give to 800 kg, 1600 kg and 3200 kg.
This product is the aim of our quality-oriented, honest to the letter. The company has many years of experience in international trade, and timely product delivery, reliable quality, reasonable prices, good service, at home and abroad customers. We sincerely welcome all people, patrons.
strong electric winch
2013年11月22日星期五
2013年8月30日星期五
Explosion-proof electric hoist details
Explosion-proof electric
rope hoist is our latest design and manufacturing standards of proof lifting equipment, the proof in the form of "flameproof"
Explosion-proof electric hoist, explosion exposed parts of the hoist with a special non-sparking material, explosion safe and reliable performance. Products through the Ministry of Machinery Industry Explosion Protected Electrical Products Quality Supervision and Inspection Center for Explosion Jiamusi sub-center performance testing, and presented proof certificate.
Explosion-proof electric hoist is a small light lifting equipment, explosion-proof electric hoist light weight, small size, lifting capacity, when the plant is filled with an explosive mixture, under the premise of ensuring safety is to improve working conditions, improve labor productivity powerful tool is the production of the necessary equipment.
Explosion-proof electric hoist's internal structure and its effects:
1, tap: electric manual hoist suitable for grid operation is required, generally have a high-voltage side of the transformer taps, can not fully guarantee tap synchronous switching, so there can not load tap running in parallel.
2, the voltage transformer: primary winding turns N1 much less secondary winding turns N2, equivalent to a step-down transformer. PT at work at the primary and secondary windings are connected in parallel, respectively, in the primary circuit and the secondary voltage control loop coil. Therefore, if the secondary winding is short-circuited, will result in very large secondary current.
3, Used / drawer: Handcart and drawers are high voltage switchgear and low voltage switchgear part,lever hoist were installed high voltage circuit breakers and low voltage circuit breakers and relays and other components. They fixed switch function is basically the same, the main difference is to facilitate the maintenance and repair.
Explosion-proof electric hoist, explosion exposed parts of the hoist with a special non-sparking material, explosion safe and reliable performance. Products through the Ministry of Machinery Industry Explosion Protected Electrical Products Quality Supervision and Inspection Center for Explosion Jiamusi sub-center performance testing, and presented proof certificate.
Explosion-proof electric hoist is a small light lifting equipment, explosion-proof electric hoist light weight, small size, lifting capacity, when the plant is filled with an explosive mixture, under the premise of ensuring safety is to improve working conditions, improve labor productivity powerful tool is the production of the necessary equipment.
Explosion-proof electric hoist's internal structure and its effects:
1, tap: electric manual hoist suitable for grid operation is required, generally have a high-voltage side of the transformer taps, can not fully guarantee tap synchronous switching, so there can not load tap running in parallel.
2, the voltage transformer: primary winding turns N1 much less secondary winding turns N2, equivalent to a step-down transformer. PT at work at the primary and secondary windings are connected in parallel, respectively, in the primary circuit and the secondary voltage control loop coil. Therefore, if the secondary winding is short-circuited, will result in very large secondary current.
3, Used / drawer: Handcart and drawers are high voltage switchgear and low voltage switchgear part,lever hoist were installed high voltage circuit breakers and low voltage circuit breakers and relays and other components. They fixed switch function is basically the same, the main difference is to facilitate the maintenance and repair.
2013年8月29日星期四
Solve two-speed electric hoist lifting shake
Two-speed electric
manual block inspection work to do before use, in addition to the following three points can help you solve two-speed electric hoist lifting shaking problem.
The first point: Do not dramatic lifting loads
The second point: it slowly started moving laterally
The third point: Do not stayed
Do not lifting loads near the end of the beam side of the state to run. Lifting loads tweaking will encounter people and things or fall may result in death or serious injury. Load if tweaking, tweaking the more powerful,wire rope winch the more problems running the car, accompanied by danger. In principle, to make the load laterally tweaking. Therefore, please observe the following manipulation. Starting and ending in the electric chain hoist lateral movement, even comply with the above manipulation, lifting loads but also how much will be tweaked. At this point,rope hoist if the following manipulation, will be able to reduce the lifting load tweaking.
The first point: Do not dramatic lifting loads
The second point: it slowly started moving laterally
The third point: Do not stayed
Do not lifting loads near the end of the beam side of the state to run. Lifting loads tweaking will encounter people and things or fall may result in death or serious injury. Load if tweaking, tweaking the more powerful,wire rope winch the more problems running the car, accompanied by danger. In principle, to make the load laterally tweaking. Therefore, please observe the following manipulation. Starting and ending in the electric chain hoist lateral movement, even comply with the above manipulation, lifting loads but also how much will be tweaked. At this point,rope hoist if the following manipulation, will be able to reduce the lifting load tweaking.
Mini electric wire rope hoist selection criteria
Mini electric
rope hoist rope is in one of the main components, the number of broken wire rope, erosion (wear) the amount of deformation, the use of such length and fixed state should meet the national standard.
(1) wire rope used should meet the requirements, the connection method should be correct.
a. rope ends fixed platen should be ≥ 2 or with a wedge fixed on the drum and other member.
b. When the hooks and other devices extract in the lowest position (including pit), the wire rope on the drum winding number, in addition to the fixed rope tail number of laps, but must leave ≥ 2 laps.
(2) one of the following occurs rope should be scrapped:
a. rope around the post in a twisting pitch (refers to any one of the rope around a week shares axial distance) number of broken wires within the total number of wire rope of 10%.
b. lifting hot metal or dangerous goods, rope, broken wires scrapped its general bouncer inflatable take half the heavy machine,hoist and trolley such as broken wires phenomenon concentrated in the local, or six times the length of broken wire rope diameter concentrated in a shares on a prescribed shall be half that line scrapped.
c. surface layer of steel wire rope corrosion or abrasion of the surface of the original wire diameter of 40%.
d. rope diameter is reduced amounted to 7%.
e. rope obvious internal corrosion.
f. rope surface wear or corrosion, there are a certain number of broken wires, broken wires tension meter from the surface to the requirements of a and b are multiplied by the reduction coefficient is determined after: when wear or corrosion rates were 10%, 15 %, 20%, 25%, 30% -40%
, The reduction factor corresponding to 85%, 75%, 70%, 60%, 50%.
g. entire strand break or burn out.
h. partial outer rope elongation was "cage"-shaped or rope fiber core diameter increases more serious.
i. rope kinking, dead, hard curved, plastic deformation,hoist equipment hemp core prolapse severely deformed.
(1) wire rope used should meet the requirements, the connection method should be correct.
a. rope ends fixed platen should be ≥ 2 or with a wedge fixed on the drum and other member.
b. When the hooks and other devices extract in the lowest position (including pit), the wire rope on the drum winding number, in addition to the fixed rope tail number of laps, but must leave ≥ 2 laps.
(2) one of the following occurs rope should be scrapped:
a. rope around the post in a twisting pitch (refers to any one of the rope around a week shares axial distance) number of broken wires within the total number of wire rope of 10%.
b. lifting hot metal or dangerous goods, rope, broken wires scrapped its general bouncer inflatable take half the heavy machine,hoist and trolley such as broken wires phenomenon concentrated in the local, or six times the length of broken wire rope diameter concentrated in a shares on a prescribed shall be half that line scrapped.
c. surface layer of steel wire rope corrosion or abrasion of the surface of the original wire diameter of 40%.
d. rope diameter is reduced amounted to 7%.
e. rope obvious internal corrosion.
f. rope surface wear or corrosion, there are a certain number of broken wires, broken wires tension meter from the surface to the requirements of a and b are multiplied by the reduction coefficient is determined after: when wear or corrosion rates were 10%, 15 %, 20%, 25%, 30% -40%
, The reduction factor corresponding to 85%, 75%, 70%, 60%, 50%.
g. entire strand break or burn out.
h. partial outer rope elongation was "cage"-shaped or rope fiber core diameter increases more serious.
i. rope kinking, dead, hard curved, plastic deformation,hoist equipment hemp core prolapse severely deformed.
Using miniature electric hoist should follow the following specification
In order to regulate electric rope hoist daily use and maintenance, to ensure the safe operation of electric hoist, stable, and must strictly enforce safety procedures relevant requirements.
One before using debug / checked
After a new installation or dismantling after the mini electric hoist, to be empty commissioning times. Not installed before the non-power operation.
2 installation or commissioning, check limit device is flexible and reliable, when hook up first limit position, the hook to the roll shell casings distance must be> 50mm lower limit position when the hook drops, should ensure that the roll wire rope safety circle, circle must be effective and safe in the more turns.
3 should be 125% of the rated load,hoist equipment lifting off the ground about 100mm, 10-minute static load test and check whether it is normal.
4 confirm the reliability of the brake status; adjust upper and lower limit stop module.
5 Check that the wedge is installed securely and reliably.
6 Check the wire rope is normal, if found bending, deformation, corrosion or wear serious, fracture extent exceeding the requirements, prohibited operation.
Two precautions in use
A miniature electric hoist shall hand manipulation, the manipulator should fully grasp their security procedures.
2 mini electric hoist in use by someone to check, paying particular attention wearing parts, and found fault,load chain immediately turn off the main power, to take timely measures.
3 is used, the absolute prohibition does not allow circumstances, and exceeds the rated load and nominal hourly closing times (120 times) of the cases.
4 in use, to maintain adequate oil and lubricating oil to ensure a clean and should not contain impurities and dirt.
5 prohibited by people standing on the lifting objects prohibited under strictly prohibited in the swing state of lifting, non-lifting of objects connected with the ground.
Three maintenance
A miniature electric hoist does not work, you can not put heavy objects hanging in the air, to prevent parts produce permanent deformation.
2 mini electric hoist maintenance work must be carried out in a no-load condition.
3 Adjust the amount of electric hoist brake down,hoist and trolley you should ensure that the rated load, brake down the amount S ≤ V/100.
4 rope oiling, you should use a stiff brush or small wooden pieces by hand directly to the non-working rope oiled.
2013年8月28日星期三
Explosion-proof electric hoist to see trends
With the lifting of the continuous development of the electric
rope hoist increasingly stringent requirements, and in many gourd products which, especially in the explosion-proof electric hoist the most widely used because of its safety performance determines its scope of use. With you to see the domestic electric hoist trends.
Domestic electric hoist is to copy the form from the last century began production and development. July 1949 Beijing General Machinery Plant imitation German first successful trial proof electric hoist, and put into small batch production, 1953 Beijing imitation electric hoist plant trial of the former Soviet Union gourd general purpose proof electric hoist to hoist as lifting mechanism electric single-girder electric lever hoist , since then, the domestic electric hoist equipment to Beijing production plant mimic the former Soviet Union as the earliest single girder truss electric hoist, electric hoist factory in 1957, Beijing and Shanghai electric hoist manufacturers combined production drawings to be modified to produce the latest generation of explosion-proof electric hoist products.
As China's economy continues to develop and progress of science and technology, a new generation of explosion-proof electric gourd endless factory is a research and development design, precision manufacturing,chain block import and export trade, the net sales as one of professional manufacturer of lifting machinery, in the years of electric hoist production of which, we continue to accumulate experience, absorb advanced technology, to create a generation after generation of explosion-proof electric hoist good product.
Electric hoist through the current trends, boldly predicted that in the next few years, explosion-proof hoist equipment electric hoist will be towards a more intelligent and automated direction, its efficiency will be more high quality will be more exquisite.
Domestic electric hoist is to copy the form from the last century began production and development. July 1949 Beijing General Machinery Plant imitation German first successful trial proof electric hoist, and put into small batch production, 1953 Beijing imitation electric hoist plant trial of the former Soviet Union gourd general purpose proof electric hoist to hoist as lifting mechanism electric single-girder electric lever hoist , since then, the domestic electric hoist equipment to Beijing production plant mimic the former Soviet Union as the earliest single girder truss electric hoist, electric hoist factory in 1957, Beijing and Shanghai electric hoist manufacturers combined production drawings to be modified to produce the latest generation of explosion-proof electric hoist products.
As China's economy continues to develop and progress of science and technology, a new generation of explosion-proof electric gourd endless factory is a research and development design, precision manufacturing,chain block import and export trade, the net sales as one of professional manufacturer of lifting machinery, in the years of electric hoist production of which, we continue to accumulate experience, absorb advanced technology, to create a generation after generation of explosion-proof electric hoist good product.
Electric hoist through the current trends, boldly predicted that in the next few years, explosion-proof hoist equipment electric hoist will be towards a more intelligent and automated direction, its efficiency will be more high quality will be more exquisite.
2013年8月26日星期一
Lifting belt maintenance home for
Lifting belt maintenance home for
1, should not be soft ring formed with any damage it may be possible to link up the installation.
2,rope hoist in the mobile lifting belt and cargo should not drag.
3, not so knotted.
4, the carrier should not make playing screwed.
5, should not be used without jacket lifting belt carrying a sharp corners,hoist and trolley edges of cargo.
6, should prevent soft ring opening angle beyond 20 °.
7, while the use of sling for a few,manual block should make the load evenly distributed.
8, lifting belt should be protected from light and no UV radiation under the conditions of storage.
9 should not be lifting with storage beside an open flame or other heat sources Sakon.
10, do not apply when the sling should be placed in a dedicated shelf.
1, should not be soft ring formed with any damage it may be possible to link up the installation.
2,rope hoist in the mobile lifting belt and cargo should not drag.
3, not so knotted.
4, the carrier should not make playing screwed.
5, should not be used without jacket lifting belt carrying a sharp corners,hoist and trolley edges of cargo.
6, should prevent soft ring opening angle beyond 20 °.
7, while the use of sling for a few,manual block should make the load evenly distributed.
8, lifting belt should be protected from light and no UV radiation under the conditions of storage.
9 should not be lifting with storage beside an open flame or other heat sources Sakon.
10, do not apply when the sling should be placed in a dedicated shelf.
2013年8月23日星期五
People often mention electric hoist lifting height is?
Many procurement officers in the inquiry of the product due to electric hoist is not very understanding,rope hoist when the sales staff asked to lifting height and other professional problem is bewildered, and today the purchase of electric hoist often asked questions "electric hoist lifting height What specifically refers to the distance between "doing the following answers for your reference:
Mentioned electric hoist lifting height h,lever hoist in fact, refers to a hook at the bottom of the orbit distance from the lowest point fall, some electric hoist extract device down on the ground or track below the top surface, the interval is called drop its decentralized depth. Then hoist in actual use, shall not exceed the lifting height.
Wire rope electric hoist lifting hook height is the upper limit position and the distance between the lower limit position,chain block and by adjusting the vertical stroke protection off the fire stopper can change the hoist lifting height.
Mentioned electric hoist lifting height h,lever hoist in fact, refers to a hook at the bottom of the orbit distance from the lowest point fall, some electric hoist extract device down on the ground or track below the top surface, the interval is called drop its decentralized depth. Then hoist in actual use, shall not exceed the lifting height.
Wire rope electric hoist lifting hook height is the upper limit position and the distance between the lower limit position,chain block and by adjusting the vertical stroke protection off the fire stopper can change the hoist lifting height.
Electric wire rope hoist five areas that need improvement
The gap between domestic and foreign electric hoist quality in terms of technology or shrinking, many domestic electric chain hoist and manual hoist is gradually out of the country,hoist equipment the following summary of the current status of wire rope hoists the following five areas that need improvement.
1, supporting the motor
CD1 type electric hoist supporting the conical rotor motor, single speed 4-pole, double-speed of 1/10 of the picture plane, and foreign wire rope hoist motor with 2 pole motor, two-speed dual windings and pole type, so simple structure, small size, light weight, help to reduce manufacturing costs. In addition, CD1 electric hoist matching motor in insulation class and degree of protection and noise as compared with foreign hoist the gap is still very large.
2, reducer security measures electrical control
CD1 type electric hoist gear reducer manufacturing precision and low efficiency, noise, gear design parameters is not reasonable,hoist and trolley especially reflected in the carrying capacity and improve levels of gears and gear pairs equalization between the intensity.
3, security measures
CD1 electric hoist only, the lower limit protection, overload protection. While foreign wire rope hoist addition to the protective function, but also has the wrong phase, phase, thermal protection, multi braking system protection.
4, the electrical control
CD1 type electric hoist electric control box appearance, poor coordination, electrical component life low failure rate.
5, component design
CD1 electric rope hoist hook, electric trolley system and other key components, a set of design and interchangeability is poor, and the structure is relatively bulky.
2013年8月21日星期三
Explosion-proof hoist hoist brake difference with the ordinary
Although there are explosion-proof electric
rope hoist electric hoist single electric hoist brakes and brake CD1/MD1 still there is a big difference, explosion-proof electric hoist brake parts appear worn with friction gasket thickness up to 50% of the original thickness, cracks or spring plastic deformation of the small diameter shaft or wear up to 5% of the original diameter, the above three cases should be scrapped. Brakes for you to explain the difference between the following lies:
1 explosion-proof hoist brake band should be articulated,manual hoist not with bolts, riveting, welding and other forms of rigid connection.
2, the brake wheel surface roughness of 1.6,wire rope winch the surface hardness of HRC40 ~ 45.
3, the brake wheel center line and the center line of the stopper Concentricity 0.030mm.
4, proof hoist brake wheel and brake band brake contact area with the area of not less than 75%.
1 explosion-proof hoist brake band should be articulated,manual hoist not with bolts, riveting, welding and other forms of rigid connection.
2, the brake wheel surface roughness of 1.6,wire rope winch the surface hardness of HRC40 ~ 45.
3, the brake wheel center line and the center line of the stopper Concentricity 0.030mm.
4, proof hoist brake wheel and brake band brake contact area with the area of not less than 75%.
2013年8月19日星期一
Electric hoist load sway control method
Electric hoist lifting equipment in the most common, most electric
rope hoist used by people to follow the control button on the ground, or can be manipulated or used in the driver room wired (wireless) remote control. Use, the absolute prohibition does not allow circumstances, and exceeds the rated load and nominal hourly closing times (120 times) use case, should not be overloaded with the following summary hoist load sway control method for reference:
Electric hoist load sway control method:
Load if shaking, shaking the more powerful, the more difficult the operation of the car will be a security risk, in principle, to make the load lateral shake, so the use of electric hoist, please follow the following operations;
a. Do not stayed
b. slowly start to the lateral movement
c. Do not dramatic lifting loads
Starting and stopping the lever hoist electric chain hoist lateral movement, even if compliance with the above operation, lifting loads but also how much will be shaking.
At this point, if the following operations will be able to reduce the lifting load sway.
1) Press the traverse key "figure a"
2) the car begins to move, the load will be slightly delayed "in graph b"
3) the load before going to swing to a central location, close keypress
4) When the load chain lift hoist back just below when the switch is pressed again, "drawing c", so that lateral movement in this state.
Electric hoist load sway control method:
Load if shaking, shaking the more powerful, the more difficult the operation of the car will be a security risk, in principle, to make the load lateral shake, so the use of electric hoist, please follow the following operations;
a. Do not stayed
b. slowly start to the lateral movement
c. Do not dramatic lifting loads
Starting and stopping the lever hoist electric chain hoist lateral movement, even if compliance with the above operation, lifting loads but also how much will be shaking.
At this point, if the following operations will be able to reduce the lifting load sway.
1) Press the traverse key "figure a"
2) the car begins to move, the load will be slightly delayed "in graph b"
3) the load before going to swing to a central location, close keypress
4) When the load chain lift hoist back just below when the switch is pressed again, "drawing c", so that lateral movement in this state.
Electric wire rope hoists fixed, run type
Electric wire rope hoist mainly in two forms,load chain fixed and running car type, widely used in factories, ports, docks, warehouses, garages and other places used more widely Lifting and handling equipment.
Fixed major fixed rope hoist is directly fixed to the beam, the beam is installed on such architecture, some with large string to wear nail holes in the top rope hoist or other means and so on. Running trolley wire rope hoist mounted on single beam, dual-beam, cantilever,hoist equipment gantry cranes and do walk up and down is a very flexible operation of lifting gear.
Electric wire rope hoist into single-speed and two-speed, fast to improve the efficiency of their work to improve your working conditions and job security situation greatly improved the company's efficiency and labor efficiency, while dual-speed electric hoist one is the same constant speed can be work,rope hoist and the other is used in high-precision slow places use.
Fixed major fixed rope hoist is directly fixed to the beam, the beam is installed on such architecture, some with large string to wear nail holes in the top rope hoist or other means and so on. Running trolley wire rope hoist mounted on single beam, dual-beam, cantilever,hoist equipment gantry cranes and do walk up and down is a very flexible operation of lifting gear.
Electric wire rope hoist into single-speed and two-speed, fast to improve the efficiency of their work to improve your working conditions and job security situation greatly improved the company's efficiency and labor efficiency, while dual-speed electric hoist one is the same constant speed can be work,rope hoist and the other is used in high-precision slow places use.
2013年8月16日星期五
Supervision of Special Equipment Inspection Inspection Program
Special equipment manufacturing supervision and inspection, including application, acceptance,rope hoist supervision, inspection, supervision and inspection certificate issued by procedures such as:
1 Applicants
For supervision and inspection of manufacturing units shall apply to the local Quality and Technical Supervision, together with a copy of the following materials:
(A) manufacturing license (copy or photocopy);
(2) The main products manufactured and production planning.
Installation and reconstruction of application maintenance supervision and inspection units fulfill the formalities, Quality and Technical Supervision belongs to the local special equipment inspection and testing institutions to apply,hoist and trolley along with a copy of the following materials:
(A) the construction of this book (photocopy);
(2) construction contracts;
(3) construction plans.
(2) accept
Local Quality and Technical Supervision, Inspection and manufacturing applications received, after examination that meet the requirements, be entertained and inform the respective institutional arrangements for inspection supervision and inspection work, and notify manufacturing units.
Installation and reconstruction of inspection and testing institutions received Supervision, Inspection and maintenance of the application, after examination that meets the requirements, it shall make arrangements for supervision and inspection work, and notify the Installation and reconstruction of maintenance units,
3 Inspection
Manufacturing Inspection:
Manufacturer shall supervision and inspection agencies at the scene to provide the following materials and conditions:
(1) production planning;
(2) Quality Management Manual and related management systems;
(3) the quality of management, professional and technical personnel and professional and technical workers certified personnel lists and documents;
(4) manufacturing equipment design documents, manufacturing process documents;
(5) The manufacturing process of the various inspection and acceptance information;
(6) the establishment of service with the supervision and inspection work;
(7) the necessary working conditions;
Inspection and testing institutions should be based on the output of manufacturing units,hoist equipment in line with the requirements of the inspection personnel engaged in the supervision and inspection work.
Installation transformation maintenance organization shall provide the following materials at the site and conditions:
(A) construction plans;
(2) Quality Management Manual and related management systems;
(3) the quality of management, professional and technical personnel and professional and technical workers certified personnel lists and documents;
(4) equipment factory file, install the transformation process and the corresponding maintenance of construction design documents;
(5) the construction process of a variety of inspection, acceptance information;
(6) the establishment of service with the work;
(7) under the supervision and inspection of the situation, you need to set up a fixed office space in the field, to prepare the necessary working conditions.
Inspection and testing institutions should be based on condition of the equipment, arrange to meet the requirements of the inspection personnel engaged in the supervision and inspection work.
4 Supervision and Inspection certificate issued
After inspection and testing institutions supervision and inspection, that the production process, equipment safety performance of technical safety requirements, according to Taiwan (cylinders by batch) issued by the special equipment safety supervision and inspection certificate (certificate, one copy); in the production process problems found, issued by the special equipment safety supervision and inspection contact list or advice notices.
Supervision, Inspection and specific provisions see Special Equipment Inspection rules of technical safety.
1 Applicants
For supervision and inspection of manufacturing units shall apply to the local Quality and Technical Supervision, together with a copy of the following materials:
(A) manufacturing license (copy or photocopy);
(2) The main products manufactured and production planning.
Installation and reconstruction of application maintenance supervision and inspection units fulfill the formalities, Quality and Technical Supervision belongs to the local special equipment inspection and testing institutions to apply,hoist and trolley along with a copy of the following materials:
(A) the construction of this book (photocopy);
(2) construction contracts;
(3) construction plans.
(2) accept
Local Quality and Technical Supervision, Inspection and manufacturing applications received, after examination that meet the requirements, be entertained and inform the respective institutional arrangements for inspection supervision and inspection work, and notify manufacturing units.
Installation and reconstruction of inspection and testing institutions received Supervision, Inspection and maintenance of the application, after examination that meets the requirements, it shall make arrangements for supervision and inspection work, and notify the Installation and reconstruction of maintenance units,
3 Inspection
Manufacturing Inspection:
Manufacturer shall supervision and inspection agencies at the scene to provide the following materials and conditions:
(1) production planning;
(2) Quality Management Manual and related management systems;
(3) the quality of management, professional and technical personnel and professional and technical workers certified personnel lists and documents;
(4) manufacturing equipment design documents, manufacturing process documents;
(5) The manufacturing process of the various inspection and acceptance information;
(6) the establishment of service with the supervision and inspection work;
(7) the necessary working conditions;
Inspection and testing institutions should be based on the output of manufacturing units,hoist equipment in line with the requirements of the inspection personnel engaged in the supervision and inspection work.
Installation transformation maintenance organization shall provide the following materials at the site and conditions:
(A) construction plans;
(2) Quality Management Manual and related management systems;
(3) the quality of management, professional and technical personnel and professional and technical workers certified personnel lists and documents;
(4) equipment factory file, install the transformation process and the corresponding maintenance of construction design documents;
(5) the construction process of a variety of inspection, acceptance information;
(6) the establishment of service with the work;
(7) under the supervision and inspection of the situation, you need to set up a fixed office space in the field, to prepare the necessary working conditions.
Inspection and testing institutions should be based on condition of the equipment, arrange to meet the requirements of the inspection personnel engaged in the supervision and inspection work.
4 Supervision and Inspection certificate issued
After inspection and testing institutions supervision and inspection, that the production process, equipment safety performance of technical safety requirements, according to Taiwan (cylinders by batch) issued by the special equipment safety supervision and inspection certificate (certificate, one copy); in the production process problems found, issued by the special equipment safety supervision and inspection contact list or advice notices.
Supervision, Inspection and specific provisions see Special Equipment Inspection rules of technical safety.
Barriers to movement across the hoist way
About electric
rope hoist lifting and durable method
Electric hoist lifting hanging objects and run when improper methods. Electric hoist then make hanging objects swing accidents. Electric hoist lifting hanging objects, when the wire rope or chain tension should be parking, electric hoist according to the direction of the hook again to identify the hook shake while lifting workers should check whether hanging objects hanging in prison; electric hoist lifting is not too Meng, hanging objects from the obstacle when accelerating until after lifting speed;chain block electric hoist hanging objects runtime. Under the conditions allowed by the rigger hoist hanging objects in the rear help steady object and under the command of the rigger run around obstacles. Do not run electric hoist intermittent, long-distance running, it is best to send electricity long run as well.
Features: Small size, light weight, easy operation, the chain is more resilient, and more rugged wear at work to ensure the safety. And the chain hoist is equipped with a chain bag, so that looks clean and tidy electric hoist, chain bag is also equipped with anti-rust oil,wire rope winch so when the electric chain hoist when not in use on the chain bag will not rust, extend the life of electric hoist.
Electric hoist lifting hanging objects and run when improper methods. Electric hoist then make hanging objects swing accidents. Electric hoist lifting hanging objects, when the wire rope or chain tension should be parking, electric hoist according to the direction of the hook again to identify the hook shake while lifting workers should check whether hanging objects hanging in prison; electric hoist lifting is not too Meng, hanging objects from the obstacle when accelerating until after lifting speed;chain block electric hoist hanging objects runtime. Under the conditions allowed by the rigger hoist hanging objects in the rear help steady object and under the command of the rigger run around obstacles. Do not run electric hoist intermittent, long-distance running, it is best to send electricity long run as well.
Features: Small size, light weight, easy operation, the chain is more resilient, and more rugged wear at work to ensure the safety. And the chain hoist is equipped with a chain bag, so that looks clean and tidy electric hoist, chain bag is also equipped with anti-rust oil,wire rope winch so when the electric chain hoist when not in use on the chain bag will not rust, extend the life of electric hoist.
2013年8月14日星期三
Heavy machinery enterprises should seize the advantage to enhance competitiveness
Although China currently has a good number of heavy machinery companies, however, have the international competitiveness of the company does not have much. How to seize the opportunity for transformation of China's industrialization,hoist and trolley to create advantages, and then formed the core competitiveness, is placed in each of a Chinese heavy machinery industry entrepreneurs face the important issue.
Reform and opening up, China mainly university graduates represented a serious lack of intellectual talent, had not much technical content to labor-intensive industries to stimulate the economy to take off. With a low factor costs (including land, raw materials, energy, labor, etc.), the cost of environmental overdraft, creating a low-cost manufacturing advantage, the Chinese enterprises in the international conquering.wire rope winch Today, the low factor costs are long gone, people's awareness of environmental protection has become increasingly intense, low-cost manufacturing advantage can not be sustained. Meanwhile, China's personnel structure has undergone enormous changes in the number of university graduates hit record highs in 2008 reached 559 million, ranking first in the world, the employment pressure is very large, students also have a downward trend in wages; contrast, common workers because of labor-intensive industries and the relative lack of over-development in recent years, "labor shortage" is proof.
Face of the above economic background, Chinese heavy industry how the transfer of dominant elements gain new competitive advantage? We believe that Chinese companies are very heavy machinery necessary to fully utilize surplus and cheap Chinese college students the opportunity to research and development, services, marketing and other aspects of to build the core strengths achieved by the low-cost manufacturing to low-cost R & D and service transformation. Low-cost R & D and service opening times, marking the Chinese companies rely on technology, performance and service competition era.
Heavy machinery industry is technology-intensive, labor-intensive and capital-intensive industry, compared with developed countries, China has the technical and financial advantages,manual hoist tend to have a strong competitive edge, however, compared with developed countries, China does not have the financial advantage, if only relying on manufacturing labor cost advantages, Chinese enterprises can only occupy the low-end market, it is difficult to win the competition, so technological innovation and related services for Chinese enterprises to go global key.
As long as Chinese enterprises to seize the opportunity to transfer Chinese elements advantages, make full use of the advantages of low-cost R & D and services, and increase efforts to develop technology, improve service levels, create a genuine core competitiveness,rope hoist the future can become internationally competitive heavy machinery enterprises.
Electric wire rope hoist trends
(1)
wire rope hoist series is designed to rationalize. Recommended parameters: Capacity from 0.25-80t, lifting height 6-63m, with fewer base model covering the entire series. Lifting speed diversification Recommended values: single speed 8m/min, 10m/rain, 12.5m/min; dual-speed 1/10, 1/3, 1/4 ratio change. Two-speed programs should take picture machine, double pole windings and variable frequency conversion stepless speed or technique.
(2) structure should be able to meet a variety of working conditions such as: low headroom, twin-lift and other mounting methods; can be remotely controlled, insulated, corrosion proof, high temperature heat, explosion and other features of the product.
(3) designed to change the traditional round shape design with a square structure, the modular design, increasing the versatility of components, from the original arrangement of the motor of an intermediate shaft in the form of a gear of the rolls, instead of motor- reducer a roll arrangement, not only conducive to effectively improve the wire rope electric lift hoist lifting height, and avoid high-speed shaft axis drive, can improve the smooth running and reliability, reduce manufacturing costs.
(4) using high-quality high-strength steel wire rope, according to GB3811-1983 standard requirements, to meet the tensile strength safety factor under the premise of minimizing the wire diameter, roll diameter compatible with the rope diameter ratio of the diameter of wire rope and pulley diameter ratio, in order to facilitate the whole structure and reduced weight.
(5) Optimized gear designed to enhance the carrying capacity of the gear. Gear can be 40Cr or 42CrMn, 40MnB material, quenched and hardened or nitrided, the original material used 20CrMnTi or 20MnTiB Although the flexural strength of the gear and the contact strength than ideal, but affected by domestic processing level based, gear low precision, carburizing quenching deformation difficult to control, after the sequence nor grinding process, it is inevitable there is gear noise, low efficiency. New materials and heat treatment method has many domestic manufacturers to promote.
(6) electric wire rope hoist motor using 2,4,6-pole conical rotor motor for a variety of different conditions.hoist equipment Motor insulation class F class and should be raised to 11, protection class increased to IP54; motor overheat protection device settings; motor should be designed effectively improve the useful power, buck ability and starting and braking capabilities; improve motor design temperature, give full play to the potential of the motor; motor noise in addition to the design, processing, manufacturing to improve accuracy, it should also be considered from the design to reduce electromagnetic noise and wind noise channel eddy current measures.
(7) increased electrical protection measures, in addition to the upper and lower limit protection, it should also increase the overload protection (individual cases considered underrun protection); wrong phase, phase, voltage protection; hook retaining rope protection. Development of multi-function models such as brake: Dual brake (brake wheel motor brake + high cone axis compensation braking); three brake (brake wheel brake cone axis compensation brake + + high volume cylinder safety gates). According to user needs increased lifting height, load digital display.
(8) wire rope hoist high wear resistance, high strength rope guide rope guide materials and equipment performance has been the lead rope hoist many domestic enterprises to explore the subject, at present, China has mastered the part of the successful experience.
(9) Other components such as wire rope hoist hooks, trolleys and other design into groups to consider and versatility.
(10) to improve matching pieces such as wire rope, bearings and other standard parts quality.
(11) wire rope hoist raise contactors, transformers and other electrical control components of the mechanical life and electrical life, electric control box shape design plug body should consider coordinating with gourds.
(12) wire rope hoist focus on machine paints, packaging appearance quality.
(2) structure should be able to meet a variety of working conditions such as: low headroom, twin-lift and other mounting methods; can be remotely controlled, insulated, corrosion proof, high temperature heat, explosion and other features of the product.
(3) designed to change the traditional round shape design with a square structure, the modular design, increasing the versatility of components, from the original arrangement of the motor of an intermediate shaft in the form of a gear of the rolls, instead of motor- reducer a roll arrangement, not only conducive to effectively improve the wire rope electric lift hoist lifting height, and avoid high-speed shaft axis drive, can improve the smooth running and reliability, reduce manufacturing costs.
(4) using high-quality high-strength steel wire rope, according to GB3811-1983 standard requirements, to meet the tensile strength safety factor under the premise of minimizing the wire diameter, roll diameter compatible with the rope diameter ratio of the diameter of wire rope and pulley diameter ratio, in order to facilitate the whole structure and reduced weight.
(5) Optimized gear designed to enhance the carrying capacity of the gear. Gear can be 40Cr or 42CrMn, 40MnB material, quenched and hardened or nitrided, the original material used 20CrMnTi or 20MnTiB Although the flexural strength of the gear and the contact strength than ideal, but affected by domestic processing level based, gear low precision, carburizing quenching deformation difficult to control, after the sequence nor grinding process, it is inevitable there is gear noise, low efficiency. New materials and heat treatment method has many domestic manufacturers to promote.
(6) electric wire rope hoist motor using 2,4,6-pole conical rotor motor for a variety of different conditions.hoist equipment Motor insulation class F class and should be raised to 11, protection class increased to IP54; motor overheat protection device settings; motor should be designed effectively improve the useful power, buck ability and starting and braking capabilities; improve motor design temperature, give full play to the potential of the motor; motor noise in addition to the design, processing, manufacturing to improve accuracy, it should also be considered from the design to reduce electromagnetic noise and wind noise channel eddy current measures.
(7) increased electrical protection measures, in addition to the upper and lower limit protection, it should also increase the overload protection (individual cases considered underrun protection); wrong phase, phase, voltage protection; hook retaining rope protection. Development of multi-function models such as brake: Dual brake (brake wheel motor brake + high cone axis compensation braking); three brake (brake wheel brake cone axis compensation brake + + high volume cylinder safety gates). According to user needs increased lifting height, load digital display.
(8) wire rope hoist high wear resistance, high strength rope guide rope guide materials and equipment performance has been the lead rope hoist many domestic enterprises to explore the subject, at present, China has mastered the part of the successful experience.
(9) Other components such as wire rope hoist hooks, trolleys and other design into groups to consider and versatility.
(10) to improve matching pieces such as wire rope, bearings and other standard parts quality.
(11) wire rope hoist raise contactors, transformers and other electrical control components of the mechanical life and electrical life, electric control box shape design plug body should consider coordinating with gourds.
(12) wire rope hoist focus on machine paints, packaging appearance quality.
Electric hoist control box structure and working conditions and precautions
An electric
rope hoist control box structure overview:
1 control box by the cabinet, contactors, transformers, terminals and other components can also be supplied in different lengths according to user requirements of multi-core cables and flashlight door; control box lid opened, the detachable from the hinge,wire rope winc user installation, maintenance; control box has to be had electrical and mechanical interlock chain, so that the same group of two contactors can not simultaneously connected to the circuit; each control box is equipped with electrical schematics, wiring terminals are consistent with the schematic clear number, user maintenance, wiring.
2 electric lift hoist control box, using high-quality chain with a machine AC contactor, the load and instantaneous overload are much improved, can get better, more suitable for frequent operation of lifting appliances required; protection of high quality cold rolled steel plate stretch forming, electrostatic spray, reliable performance, beautiful appearance.
1 control box by the cabinet, contactors, transformers, terminals and other components can also be supplied in different lengths according to user requirements of multi-core cables and flashlight door; control box lid opened, the detachable from the hinge,wire rope winc user installation, maintenance; control box has to be had electrical and mechanical interlock chain, so that the same group of two contactors can not simultaneously connected to the circuit; each control box is equipped with electrical schematics, wiring terminals are consistent with the schematic clear number, user maintenance, wiring.
2 electric lift hoist control box, using high-quality chain with a machine AC contactor, the load and instantaneous overload are much improved, can get better, more suitable for frequent operation of lifting appliances required; protection of high quality cold rolled steel plate stretch forming, electrostatic spray, reliable performance, beautiful appearance.
2013年8月12日星期一
Electric winch specifications and classification
Manual and electric hoist is mainly divided into two categories, it is an electric motor powered by the flexible coupling, three enclosed gear boxes, jaw couplings driven reels, using electromagnetic brake. Windlass versatility, compact structure, small size, light weight, major and easy to use transfer is widely used in construction, water conservancy, forestry, mining, port and other materials drag down or flat, but also for modern electronically controlled automatic operation of the line equipment.
Jm series of gear reducer drive winch. Mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. Applicable to construction and installation company, mining, civil construction and installation of plant engineering.
Powered by a human or mechanical reels, winding traction rope to complete the work of the device.
Coaxial winch: (also known as mini hoist) motor and the drive shaft on the same rope, light and compact, space-saving (for which tonnage, including (200 kg, 250 kg, 300 kg, 500 kg, 750 kg, 1000 kg, etc.)
Slow winch: wire rope on the drum about 7 ~ 12m/min rated speed of the lift hoist .
Quick windlass: wire rope on the drum of the winch rated speed of about 30m/min.
Electric winch: the motor as the driving force, by the driving means rotating the winch drum.
Speed Winch: winch speed control can be adjusted
Hand winch: the human as the driving force by the drive means causes rotation of the hoist equipment drum.
Large tonnage of non-standard hoist: mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. The structure is characterized rope arranged in order, there are hanging installation and reliable for piers, bridges, ports and other road and bridge projects and large industrial installation equipment is a use of force driving him running, and then through the electromagnetic brake and locking the brake control in the No power is not free running, while driven by the motor through reducer, drive a running wheel, roulette can be rolled on cable or something else.
Usually improve as more than 30 tons of large-tonnage hoist rope hoist , hoist large tonnage production technology in China only a few, and is currently the largest tonnage of 65 tons.
Jm series of gear reducer drive winch. Mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. Applicable to construction and installation company, mining, civil construction and installation of plant engineering.
Powered by a human or mechanical reels, winding traction rope to complete the work of the device.
Coaxial winch: (also known as mini hoist) motor and the drive shaft on the same rope, light and compact, space-saving (for which tonnage, including (200 kg, 250 kg, 300 kg, 500 kg, 750 kg, 1000 kg, etc.)
Slow winch: wire rope on the drum about 7 ~ 12m/min rated speed of the lift hoist .
Quick windlass: wire rope on the drum of the winch rated speed of about 30m/min.
Electric winch: the motor as the driving force, by the driving means rotating the winch drum.
Speed Winch: winch speed control can be adjusted
Hand winch: the human as the driving force by the drive means causes rotation of the hoist equipment drum.
Large tonnage of non-standard hoist: mainly used for hoisting, pulling unloading, pushing, dragging heavy loads. Such as various sized concrete, steel and mechanical equipment installation and removal. The structure is characterized rope arranged in order, there are hanging installation and reliable for piers, bridges, ports and other road and bridge projects and large industrial installation equipment is a use of force driving him running, and then through the electromagnetic brake and locking the brake control in the No power is not free running, while driven by the motor through reducer, drive a running wheel, roulette can be rolled on cable or something else.
Usually improve as more than 30 tons of large-tonnage hoist rope hoist , hoist large tonnage production technology in China only a few, and is currently the largest tonnage of 65 tons.
2013年8月9日星期五
Electric chain hoist brake failure occurs, how to solve
Electric Rope hoist brake there are many, cone, electromagnetic, Pond's plane brakes and so on. Larger than the electromagnetic brake down, but when the production chain hoist less difficult and longer brake life. Pond's brakes and conical brakes, brake down a small amount of time to do the electric chain hoist high degree of difficulty, life is short.
Hoist the reliability is very high, because the electric lift hoist is used conical rotor brake structure, brake motor shell, radiator fan design, but together, connected to a hot cooling fan under the surface, braking and friction braking with the motor cover. When the brake pads wear serious contact with the rear brake, the braking skid. When the brake is refused or failed, they should immediately stop using, adjust the brake.
1, the no-load motor hood.
2, unscrew the three screws.
3, the fastening nut, pay attention to tighten the screws.
4 to reposition the screw, install the cover.
Adjustment, do not immediately use electric chain hoist,manual hoist you should first find a small object hanging tests, such as reduced or no braking in the case, in accordance with a hole, such as a better course of action, and then find the rated load adjustment weight, suspended tests.
2013年8月7日星期三
Mini electric hoist seven major feature
The use of mini electric rope hoist most close to people's lives, generally divided into fixed and running style, can enhance the 1000 kg of cargo, especially for high-rise buildings to lift heavy items from downstairs. The following detailed description of your mini electric hoist seven major feature.
1 mini electric hoist design smart, easy to use.
(2) When the limit stopper baffle met, the lift will automatically stop the operation. .
3, such as wire rope reverse elevate, lift hoist motor will automatically stop working.
4 hoist hook design is divided into dynamic and static loading loading two states.
5 Household 220V power operation.
6 Plug the power cord is easy to use.
7 Wire rope winch hook 360 ° rotation.
订阅：
博文 (Atom)