The invention relates to the technical field of hoisting equipment, in particular to a locking mechanism for a cargo boom, the cargo boom and a crane, the locking mechanism comprises a base, the base is fixed on a basic arm of the cargo boom, the locking mechanism further comprises an intercepting rod, the intercepting rod is parallel to an auxiliary arm at the outermost end of the cargo boom, and one end of the intercepting rod is overlapped with the auxiliary arm at the outermost end of the cargo boom; under the buffering of the first sealing cylinder and the first piston and the buffering of the second sealing cylinder and the second piston, when the jib jumping phenomenon happens to the crane jib, the generated impact force can be gradually buffered to stop, the loss of equipment is reduced, after the crane stably runs, the jumping auxiliary jib can be driven to reset by air pressure in the first sealing cylinder and the second sealing cylinder, and the practicability is high; when the fly jib of the cargo boom is completely retracted into the base jib, the intercepting rod automatically limits the position of the fly jib under the action of the U-shaped frame, the stopping mechanism and the limiting mechanism, and in the transportation process, even if the road surface is bumpy or a downhill road section is encountered, the fly jib can be prevented from hurting a driver.

    本发明涉及起重设备技术领域,具体为一种起重臂用锁定机构、起重臂及起重机,包括基座,所述基座固定在起重臂的基础臂上,还包括:拦截杆,所述拦截杆与起重臂最外端副臂平行,且一端与起重臂最外端副臂重叠;在密闭筒一和活塞一及密闭筒二和活塞二的缓冲下,当起重臂发生“蹿臂”现象时,其产生的冲击力会被逐步缓冲至停止,降低设备的损耗,且在起重机平稳运行之后,密闭筒一和密闭筒二内的气压可驱使蹿出的副臂进行复位,实用性高;当起重臂的副臂完全收入基础臂内部时,在U形架和阻拦机构和限位机构的作用下,拦截杆自动对副臂的位置进行限制,在运输过程中,即使路面颠簸或者遇到下坡路段,也可避免副臂对驾驶员造成伤害。


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    Title :

    Locking mechanism for cargo boom, cargo boom and crane


    Additional title:

    一种起重臂用锁定机构、起重臂及起重机


    Contributors:
    ZHANG HENG (author)

    Publication date :

    2024-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F16F SPRINGS , Federn



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