How to prevent explosion-proof electric hoist from falling suddenly?

During use, the electric hoist will be hung at a high place. If the installation is not firm, it will inevitably be in danger of falling during use. Therefore, we must take measures when using it, so what aspects should be checked?

Generally, the fall is mainly caused by the coupling of the explosion-proof electric hoist falling off. If the middle is broken, it will fall. When we use it, we should weld the bearing seat in the drum with the lifting height H>=18m and use the rolling bearing to support the intermediate shaft. ; and use claw elastic couplings instead.

The chain of the electric hoist should be checked regularly. If there is any cracking, the chain should be replaced in time to prevent the goods from falling with the chain during the lifting process, causing unnecessary losses.