How to judge the failure of ZSY224-56-11 reducer backstop

Failure of the backstop of the ZSY224-56-11 reducer will directly affect the one-way braking function of the equipment, especially in working conditions such as belt conveyors and elevators that need to prevent reversal, which may cause serious safety accidents. ‌To determine whether the backstop has failed, it should be comprehensively identified from three aspects: abnormal operation, component inspection and functional testing. The core judgment is based on the reverse rotation of the equipment after shutdown or the inability to effectively lock.

‌1. Reverse rotation occurs after the equipment is shut down.
After cutting off the power source, the output end that should have remained stationary rotates in reverse direction, which is the most direct signal of backstop failure. For example, in a conveyor system, if the material causes the belt to slip backward due to gravity, it indicates that the backstop function is lost.

‌2. Abnormal noise and jamming phenomenon‌

(1) Intermittent impact sounds such as 'clicking' and 'clunking' occur during operation, which may be caused by poor engagement between the pawl and the ratchet wheel or failure of the spring;

(2) If you feel a sudden increase in resistance or stuck when starting, and then suddenly release it, it indicates that the internal locking mechanism is not functioning smoothly.

3. Abnormal temperature rise and intensified vibration.
Slippage inside the backstop will generate additional friction heat, leading to a significant increase in local temperature. At the same time, uneven stress causes shafting vibration, which can be detected with the aid of an infrared thermometer or vibration sensor.