The chain is the primary load-bearing object of the group lifting hoist. The chain plays a very important role in the electric hoist. The chain of group lifting hoist may be cracked during operation, which is generally caused by overloading and improper protection. Group crane hoist chain cracking is a certain defense, so that these methods can prevent the occurrence of trouble.
1: Perform the requirements for safe handling on site, and stop the personnel in the lifting area.
2: On-site inspection and protection of airborne equipment throughout the plant.
3: Restore factory-standard motors and gears.
4: When special equipment is protected or repaired, it is necessary to review the technical guidelines and parameters. Important marks such as spare parts types and standards must be registered for registration, and repairs and protection operations can be carried out after approval.
5: Install overload protection on the existing motor, and make the traction force of the chain guide always smaller than the lateral limit load of the chain.
6: When special equipment is purchased and selected, it is not necessary to simply adopt a simple policy such as carrying capacity, and the brand, accessories and safety factor must be thoroughly examined in accordance with the safety standards of the factory.