A hand chain hoist is also called a chain hoist, so the chain is an important accessory of the hand chain hoist.
It carries the weight of the goods. Once the chain breaks, it will cause serious consequences.
So why does the chain hoist break?
1. The chain material of inferior gourds does not meet the standard;
2. The welding technology of the chain interface of inferior hoists is backward, resulting in loose or weak interfaces and prone to breakage;
3. If the hand chain hoist is not operated strictly according to the operating methods in the instruction manual, it will also have a certain impact on the chain during the operation, and it will cause breakage over time;
4. Overload hoisting is not strictly carried out in accordance with the load on the sign, which increases the bearing capacity of the chain. Long-term overload use may also cause the chain to break;
5. Failure to apply lubricating oil to the chain in time for regular maintenance will cause the chain to rust and break over time;
6. If new and old chains are used together, impact force will be generated during the operation and it is extremely easy to break the chain.
Hand chain maintain
1. The tightness of the lifting chain should be appropriate. The tightness of the chain is: lift or press down from the middle of the chain, and the center distance of the two sprockets is about 2%-3%.
2. The new lifting chain is too long or has stretched after use, making it difficult to adjust. The links can be removed depending on the situation, but they must be an even number.
3. The sprocket should be installed on the shaft without skew or swing.
4. When the sprocket is severely worn, new sprockets and new chains should be replaced at the same time.
5. Old lifting chains cannot be mixed with some new chains. 6. Remember to add lubricating oil to the lifting chain in time during work.
We can regard the hand chain hoist brake as an enhanced version of the fixed pulley.
While inheriting the advantages of the fixed pulley, it uses a combination of a reverse stop brake stop and a chain pulley block.
The current queue of the secondary spur gear rotates The structure is simple and efficient.
The hand chain hoist is driven by people turning the hand to produce a certain traction effect on the gear rotating machinery, so that the small gear drives the large gear. The amplified torque is transmitted to facilitate the lifting chain to realize the lifting of heavy objects.
