2014年6月29日星期日

a. When lifting heavy objects in each class for the first time (or the maximum load weight), should be lifting 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 to ring the alarm.
① lifting, landing weight; great start when the car driving. 1.5 ton electric chain hoists
② clear sight of the crane when traveling through to continuous-ringing alarm;
③ traveling crane when the crane near the cross in another.
④ lifting heavy objects near the staff.
c. Operation running under a unified command signal should be. 15 ton electric chain hoist
d. Work in a power outage, the controller should handle all placed in the "zero" position, re-work should be checked before the crane movements are normal.
e. Large cranes, trolley during normal operation, parking brake open anti prohibited; transform large trolley direction of movement, the handle

2014年6月28日星期六

wire rope

The steel monorail wire rope hoist is one of the components of a very high rate of hoist is used, this isdue to the unique characteristics of its decision. Compared with the rigid component of wire rope, wire rope has the advantages of high strength, light weight, good flexibility,impact resistance and other characteristics, especially prominent is the safety reliability of it.
Steel wire rope electric hoist used in normal circumstances will not generally besuddenly broken, even if the failure is also a precursor, generally from the individual,local broken wire, to the progressive development of the rope, is a time process, if thewire rope suddenly broken, because the load exceeds the limit breaking force the rope suddenly failure occurred. This provides such a possibility, as long as usual to strengthen safety management and use of wire rope for electric hoist, caused by wind tubine hoist accidents can be avoided. But the electric wire rope hoist force status changing,complex work environment, the failure in addition to mechanical damage, improper selection, improper structure maintenance checks, wire rope failure reason notpromptly scrapped and update and so on.

2014年6月26日星期四

Application of the technology in electric hoist hook

electric hoist trolley hook is a hook hoisting machinery in the most common. By electric hoistand pulley block part is hung on the hoisting mechanism of the wire rope or chain.According to the shape is divided into single and double hook hook, according to the manufacturing method for forging and laminated. three phase electric hoist hook is made of gold, steel, heat treated, chain, annealing, surface anti-corrosiontreatment produced, we understand in detail the application of the technology in electric hoist hook.
Electric hoist single hook has the advantages of simple manufacture, convenient use,but the stress condition is not good, mostly in the weight for the workplace 80 tons; big lifting weight often use force symmetrical double hook. Laminated hook which is composed of a plurality of cutting steel plate riveted together, the hook will not damage the cracks of individual plates, security is better, but the large self weight,mostly used in large capacity or the lifting of the molten steel ladle crane. The hook is often affected by the impact during the operation, the good toughness of high quality carbon steel manufacturing.
Mainly because of cheap wire rope hoist  in the use process, there are rarely have an overload situation. In this case, there will be deformation of the hook. And hook groupgeneral in the hanging point, is not easy to detect, if there are serious consequences.The hook is very easy to see the visual hook changes, minimize risk hook deformationalso continue to work. So the artificial let tensile strength hook group is different, it is necessary to.

2014年6月24日星期二

suspended micro electric hoist

We all know that factories, mines, construction work is quite tired The labor intensity, is very large, especially in the installation of equipment, lifting Material, especially when loading, in order to simplify the manual labor, research Hair, made of suspended micro electric hoist to ease the work pressure Force, improve the operation speed, below we have to understand the product Advantages in performance of. 1, which can be connected to the power supply is very easy, no specialchain hoist 1 ton Requirements, the power plug is directly inserted can finish the homework in a common socket 220V voltage; 2, with the emergency stop switch and limit switch, when the unexpected happens, can occur in time to prevent the accident, Safety performance is very high; 3, with thermal protection device, because the power into power, residual energy is converted into heatchain hoist 2 ton Send out, with possible damage to the circuit, considering this point, design of the thermal protection device to prevent this from happening; 4, suspended micro electric hoist in addition to protecting the measures above, when the rope anti rotation or in other forms. Dynamic limit arm, will automatically stop lifting operation;lashing cargo 5, a safety hook lock 360 degree universal connecting hook pad, use more convenient.

Scope of application


Range of use of electric chain hoist is very wide, mainly used in large factories,warehouses, wind power, logistics, ports, construction and other industries, lifting or handling of goods can also be used for heavy lifting, convenient work or repair a large machine. Electric hoist chain by the operating personnel with the ground to follow the manipulation button, can also be manipulated by cable or in the control room(wireless) remote control. Ring chain electric hoist can be fixed suspension, also can be equipped with electric monorail trolley and hand push / pull monorail trolley used.

2014年6月4日星期三

wire rope winch loads someone within range of activities

electric hoist lifting loads someone within range of activities, not operational. Personnel shall enter hoist lifting load range of activities
2 Do not operate just below the height of the load or carry loads in excess of the human head.
3, can not ride on top of the load lifting. Also, do not for support, lifting, take transport personnel purposes.
4, the body can not make ratchet lever hoist and trolley crash stopper and structures.
5, the electric hoist lifting loads in the state, do not be falling behind the operation moved. To operate, when electric wire rope hoists you move, please look at the front from the rear of the load, while the forward side of the operation.
6, do not hang lifting loads on other structures or cables.
7, when the load chain and chain wrapped zipper hand monorail car, please stop operating immediately, Untangle the knot.