The invention relates to a hoisting overspeed slow descent brake, and discloses an overspeed slow descent brake of a small crane. The overspeed slow descent brake detects the running speed of a steel wire rope in real time through an infrared steel wire rope speed sensor, transmits signals through a signal line and drives a disc-shaped rocker to rotate through a motor, so that a U-shaped sliding block stretches out to clamp the steel wire rope for speed reduction. The device is characterized by comprising an overspeed slow descent brake fixing frame, an infrared steel wire rope speed sensor, a motor support, a motor, a signal line, a crank, a connecting rod, a disc-shaped rocker fixing disc, a fixing bolt, a steel wire rope sliding groove, a steel wire rope, a disc-shaped rocker, a U-shaped sliding groove, a U-shaped sliding block and a spring. The infrared steel wire rope speed sensor is fixedly arranged on one side face of the overspeed slow descent brake fixing frame, a hole is formed in the overspeed slow descent brake fixing frame, and an emitter and a receiver of the infrared steel wire rope speed sensor both penetrate through a center shaft of the hole of the overspeed slow descent brake fixing frame.

    本发明一种起重超速缓降制动器公开了一种通过红外钢丝绳速度感应器实时检测钢丝绳运行速度,通过信号线传递信号,通过电机带动盘型摇杆旋转从而使U型滑块伸出卡住钢丝绳进行降速的小型起重机的超速缓降制动器。其特征在于由超速缓降制动器固定架、红外钢丝绳速度感应器、电动机支座、电动机、信号线、曲柄、连杆、盘型摇杆固定盘、固定螺栓、钢丝绳滑动槽、钢丝绳、盘型摇杆、U型滑槽、U型滑块以及弹簧组成,红外钢丝绳速度感应器固定置于超速缓降制动器固定架一侧面上,所述超速缓降制动器固定架开有孔洞,所述红外钢丝绳速度感应器的发射器和接收器方向均穿过所述超速缓降制动器固定架孔洞中心轴。


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    Title :

    Hoisting overspeed slow descent brake


    Additional title:

    一种起重超速缓降制动器


    Contributors:

    Publication date :

    2025-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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