The invention discloses a forward movement preventing device for a cargo boom and a crane, the forward movement preventing device comprises a sleeve, a locking spring, a locking pin, a proximity switch and a controller, and the forward movement preventing device is fixed on the outermost section of the cargo boom through the sleeve; a pin shaft of the locking pin is located in the sleeve and can move up and down in the sleeve. The two ends of the sleeve are provided with locking positions, and the locking positions are used for limiting the locking pin. The locking pin is inserted into the cargo boom, all sections of cargo booms are connected into a whole, the cargo booms cannot move relatively, the locking pin is locked in the locking position through the locking spring, the locking pin is prevented from being separated from the locking position, and the forward movement phenomenon of the cargo boom is effectively prevented. By adopting the mechanical locking mechanism, the forward moving phenomenon of the cargo boom can be eliminated, and the operation safety of the cargo boom is improved.

    本发明公开了一种起重臂防前窜装置及起重机,该装置包括套筒,锁止弹簧、锁止销、接近开关和控制器,所述装置通过套筒固定在最外节起重臂上;所述锁止销的销轴位于所述套筒内,所述销轴能够在所述套筒内上下运动;所述套筒的两端设锁止位,所述锁止位用于对所述锁止销进行限位;将锁止销插入到起重臂内,将各节起重臂连接为一个整体,使起重臂之间不会发生相对移动,通过锁止弹簧将锁止销锁死在锁止位内,防止锁止销脱离锁止位,有效防止起重臂前窜现象。本发明采用机械锁止机构可以消除起重臂前窜现象,提高起重臂操作安全性。


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    Title :

    Forward moving prevention device for cargo boom and crane


    Additional title:

    一种起重臂防前窜装置及起重机


    Contributors:
    JIAO GUOWANG (author) / WANG LUQING (author) / ZHOU BIN (author) / FAN YUNPENG (author)

    Publication date :

    2023-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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