What should I do if the instantaneous peak torque exceeds the maximum instantaneous allowable torque of the gearbox

When the instantaneous peak torque exceeds the maximum allowable instantaneous torque of the gearbox, immediate measures must be taken to avoid equipment damage. This situation can easily lead to serious faults such as gear tooth breakage, shaft system fracture, bearing locking, and even cause complete machine failure.

It is recommended to address the following four aspects:

1. Install overload protection device
Install torque limiters (such as friction or pin type) in the transmission chain, and set the protection value to 1.3~1.5 times the maximum instantaneous allowable torque of the reducer. When the instantaneous torque exceeds the standard, the device automatically slips or disconnects, cutting off power transmission and protecting the core components of the gearbox.

2. Optimize control strategy to reduce impact
Using a frequency converter or soft starter to control the start and stop of the motor, smoothly adjusting the speed and output torque to avoid severe impact during start-up or forward and reverse rotation. Setting a reasonable acceleration and deceleration time can significantly reduce the instantaneous peak torque.

3. Recheck the selection and improve redundancy
If the operating conditions cannot be changed, the selection of the gearbox needs to be re evaluated. According to the actual load characteristics (such as impact level, start stop frequency), increase the service factor (SF) to ensure that the maximum allowable torque of the gearbox is ≥ the peak load torque. For strong impact working conditions, SF recommends taking 1.5~2.0 or above.

4. Strengthen real-time monitoring and maintenance
Deploy vibration, temperature, and current sensors to monitor operational status in real-time. Once abnormal temperature rise, intensified vibration, or sudden increase in current is detected, stop the machine promptly for troubleshooting. Regularly conduct oil analysis to detect wear particles in advance and prevent sudden failures.