The invention discloses a safety protection device and method for an elevator load test, a fixed plate is fixed on a guide rail of an elevator, a clamp body is fixed on the fixed plate, the end part of a pressing block shaft penetrates through a pressing block and one end of a connecting rod and then is inserted into a guide groove on the fixed plate, and the other end of the connecting rod is hinged with one end of the clamp body; the other end of the clamp body is connected with a sliding block and a pressing device used for applying pretightening force to the sliding block in a sliding mode, a speed limiter steel wire rope of an elevator is located between the sliding block and the pressing block, the lock hook is hinged to the fixing plate through a lock hook rotating shaft, a torsional spring is arranged between the lock hook rotating shaft and the lock hook, and the lock hook hooks the pressing block shaft. The top support is connected with an output shaft of the linear motor, the top support is located below the pressing block shaft, the controller is connected with the linear motor, and the lock hook is connected with the top support through a connecting rope. According to the device and the method, low-speed sliding protection can be carried out when the traction capacity is reduced and the braking force is insufficient in the load test process, and the safety is high.
本发明公开了一种电梯载荷试验安全保护装置及方法,固定板固定于电梯的导轨上,钳体固定于固定板上,压块轴的端部穿过压块及连杆的一端后插入于固定板上的导向槽内,连杆的另一端与钳体的一端相铰接,钳体的另一端滑动连接有滑块以及用于对滑块施加预紧力的压紧装置,电梯的限速器钢丝绳位于滑块与压块之间,锁钩通过锁钩转轴与固定板相铰接,锁钩转轴与锁钩之间设置有扭簧,通过锁钩钩住所述压块轴,顶托与直线马达的输出轴相连接,顶托位于压块轴的下方,控制器与直线马达相连接,锁钩与顶托之间通过连接绳相连接,该装置及方法能够在载荷试验过程中曳引能力下降以及制动力不足时进行低速滑移保护,安全性较高。
Elevator load test safety protection device and method
一种电梯载荷试验安全保护装置及方法
2023-06-23
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
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