The invention relates to the technical field of engineering machinery, and provides a telescopic arm device and engineering machine.The telescopic arm device comprises a first section arm, a second section arm, an arm pin inserting and pulling mechanism, a telescopic oil cylinder, a pin pulling rod, an arm pin structure and a transmission assembly; the first section arm can slide in the direction of the axis of the second section arm relative to the second section arm, the arm pin inserting and pulling mechanism is arranged in the first section arm, and the telescopic oil cylinder is connected with the arm pin inserting and pulling mechanism; the second section arm is provided with an arm pin hole; one end of the pin pulling rod is connected with the arm pin structure through the transmission assembly, the arm pin inserting and pulling mechanism is connected with the other end of the pin pulling rod, and the transmission assembly is used for enabling the inserting and pulling stroke of the arm pin structure to be larger than the movement stroke of the pin pulling rod. According to the telescopic arm, the arm pin structure can be completely pulled out of the arm pin hole of the second section of arm, the interference problem between the arm pin structure and the second section of arm located on the outer side is avoided, and it is guaranteed that the telescopic arm can conduct normal telescopic operation.

    本发明涉及工程机械技术领域,并提供一种伸缩臂装置及工程机械,伸缩臂装置,包括第一节臂、第二节臂、臂销插拔机构、伸缩油缸、拔销杆、臂销结构和传动组件,所述第二节臂套设于所述第一节臂外,且第一节臂相对于第二节臂在沿第二节臂的轴线的方向上可滑动,臂销插拔机构设置于所述第一节臂内,伸缩油缸与臂销插拔机构连接;所述第二节臂设有臂销孔;所述拔销杆的一端通过所述传动组件连接所述臂销结构,所述臂销插拔机构与拔销杆的另一端连接,传动组件用于使得臂销结构的插拔行程大于拔销杆的运动行程;本发明可使臂销结构完全从第二节臂的臂销孔拔出,避免臂销结构与处于外侧的第二节臂产生干涉问题,以确保伸缩臂可以进行正常伸缩作业。


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    Title :

    Telescopic arm device and engineering machinery


    Additional title:

    一种伸缩臂装置及工程机械


    Contributors:

    Publication date :

    2023-11-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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