The brake,as an integral part of the traction machine of the traction system,must be safe and reliable for the elevator to operate safely.The failure of the brake may cause the car to bump and bottom,and more seriously,it may cause shear accidents and result in casualties.This article analyzes the common failure modes of the lever drum brake based on its structural characteristics,and expounds the key points of inspection and testing of the lever drum brake with cases.It also provides suggestions on how to prevent failure.
NETL
NSTL
万方数据
