What is the over speed governor pulley?

Elevator over speed governor pulley  is an important part of the elevator safety protection system, which is used to control the speed of the elevator to ensure that the elevator will not exceed the speed limit during operation.

When the speed of the elevator exceeds the set value, the speed limiter wheel will be activated automatically to avoid dangerous accidents caused by uncontrolled power of the elevator.

The working principle of the speed limiter wheel is that when the speed of the elevator exceeds the set value, the safety guarantee is provided by the speed limiter in the lower part of the elevator car, which will cut off the power supply of the electric motor to stop the elevator from running or continue to descend according to the scheduled speed. The function of the speed limiter wheel is to ensure that the elevator will not exceed the speed limit during operation. If the speed exceeds the safety quota, the speed limiter wheel will brake immediately to avoid fatal accidents of the elevator. In daily maintenance, it is necessary to check whether the sensitivity of the speed limiter wheel is normal and whether there is wear and tear, and replace the damaged parts in time to ensure its safety.