Overload operation is fatal to the brake system of chain block

The safe operation of the chain block is inseparable from its reverse braking device. The reverse braking system can effectively prevent the chain block from making the reverse movement under the load, which will cause the heavy object to fall. But the reverse braking system can not guarantee the safety of lifting operation 100%, and the safety of lifting operation depends more on the standard operation of operators.

Overload operation has a great impact on the reverse braking device. Before talking about the damage caused by overload to the reverse braking device, let's first understand the working principle of the reverse braking system. The reverse braking device of the chain block is mainly composed of two parts, ratchet and pawl. Every time you pull the chain of the chain block, the brake system will play a role, because in the process of lifting with the chain block, when the power is cleared, the weight can still be suspended in the air, and the state at this time is the proof that the reverse brake of the chain block is running, and the ratchet and pawl will continuously mesh, open and close under the repeated load Engage, open. In this way, the safety of operation is ensured.

In overweight operation, the transmission of chain and sprocket will act on the brake system. The ratchet and pawl in the brake system are far less strong than the lifting chain. Every time the chain is pulled, each ratchet of the ratchet will be meshed by the more powerful force of the pawl due to the influence of overload. Once or twice may not have a great impact, but if it goes on for a long time, the ratchet and pawl are easy to deform or break, resulting in the complete failure of the chain block brake system.

This is the impact of overload operation on the brake system of the chain block. Therefore, we must protect the brake system of the chain block and never overload operation.