The invention relates to an operation vehicle and a lifting telescopic boom thereof, the lifting telescopic boom comprises at least two boom sections which are sequentially sleeved together in a sliding manner, and the at least two boom sections comprise a head end boom section and a tail end boom section; one end of the reinforcing pull rope is a first end connected to the arm section at the head end, the other end of the reinforcing pull rope is a second end connected with a tensioning swing rod arranged on the arm section at the head end, and a middle reversing pulley is mounted on each arm section, so that the reinforcing pull rope reverses and bypasses the middle reversing pulley, and then all the arm sections are connected through the reinforcing pull rope; the lifting telescopic boom further comprises a tensioning driving structure which is in transmission connection with the tensioning swing rod so as to drive the tensioning swing rod to swing and further tension the reinforcing pull rope. When the lifting telescopic boom frame stretches out and draws back, the reinforcing pull rope slides along with stretching out and drawing back of all the boom sections and is in a tensioning state all the time, and therefore the strength of the whole lifting telescopic boom frame can be improved.

    本发明涉及一种作业车辆及其起重伸缩臂架,起重伸缩臂架包括:依次滑动套装在一起的至少两个臂节,至少两个臂节包括首端臂节和末端臂节;加强拉绳,其一端为连接在首端臂节上的第一端,另一端为与首端臂节上设有的拉紧摆杆连接的第二端,臂节上安装有中间换向滑轮,以供加强拉绳换向绕过进而通过加强拉绳将所有臂节连接起来,以在加强拉绳张紧时增强起重伸缩臂架的强度,还包括拉紧驱动结构,其与拉紧摆杆传动连接,以驱动拉紧摆杆摆动进而张紧加强拉绳。在起重伸缩臂架伸缩动作时,加强拉绳跟随各臂节的伸缩动作滑移,并始终处于张紧状态,进而可以提高整个起重伸缩臂架的自身强度。


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    Titel :

    Working vehicle and lifting telescopic boom thereof


    Weitere Titelangaben:

    一种作业车辆及其起重伸缩臂架


    Beteiligte:
    WANG SHOUZHONG (Autor:in)

    Erscheinungsdatum :

    2023-05-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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