The invention relates to the technical field of cranes, and discloses a protection device for preventing a crane hoisting cable from stalling. The protection device for preventing the crane hoisting cable from stalling comprises a shell, a supporting plate is fixedly connected into the shell, a sliding groove is formed in the surface of the supporting plate, a rotating block is movably connected to the inner side of the sliding groove, and a sliding rod is movably connected to the outer portion of the supporting plate. A moving block is movably connected to the inner side of the sliding rod, aconnecting rod is movably connected to the exterior of the moving block, and a sliding rail is fixedly connected to the interior of the shell. Under the interaction of the supporting plate, the sliding groove, the rotating block, the sliding rod, the moving block, the connecting rod, the sliding rail, a sliding block, a detection rod, a bearing plate, a telescopic rod, a first spring, a speed limiting plate, a stop block, a rotating shaft and a speed limiting assembly, the operation site of a cable crane can be safer; and therefore, the situation that due to stall of the crane, a lifting operator is injured, and equipment is damaged is effectively prevented, economic losses caused by accidents of lifting operation are reduced, and the safety of the lifting operation is improved.

    本发明涉及起重机的技术领域,且公开了一种防止起重机起吊缆绳失速的保护装置,包括外壳,所述外壳的内部固定连接有支板,支板的表面开设有滑槽,滑槽的内侧活动连接有转动块,支板的外部活动连接有滑杆,滑杆的内侧活动连接有移动块,移动块的外部活动连接有连杆,外壳的内部固定连接有滑轨;通过支板、滑槽、转动块、滑杆、移动块、连杆、滑轨、滑块、检测杆、承接板、伸缩杆、弹簧一、限速板、挡块、转轴、限速组件之间的相互作用下,可以使得缆绳式起重机的作业现场更加的安全,这样也有效的防止起重机失速造成起重作业人员的受伤和设备的损坏,进而降低了起重作业意外造成的经济损失,提高了起重作业的安全。


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    Title :

    Protection device for preventing crane hoisting cable from stalling


    Additional title:

    一种防止起重机起吊缆绳失速的保护装置


    Contributors:
    SU ZHONGNAN (author)

    Publication date :

    2021-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES




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