The invention relates to the technical field of overhead working trucks, in particular to a single-section inner arm telescopic system of an overhead working truck. A hydraulic oil cylinder barrel in the system is fixed to an outer arm, supporting connecting rods are symmetrically installed on the front side and the rear side of the hydraulic oil cylinder barrel, the ends of the hydraulic oil cylinder rods are fixed to the supporting connecting rods, and chain wheel and chain sets are arranged on the sides, away from the hydraulic oil cylinder barrel, of the supporting connecting rods; the other end of the chain wheel and chain group is fixed with the inner arm; the length of the chain wheel and chain group is greater than the extension length of the hydraulic oil cylinder rod; the hydraulic oil cylinder rod drives the supporting connecting rod to move synchronously, the chain wheel and chain set rotates while moving on the supporting connecting rod, and the distance that the chain wheel and chain set drives the inner arm to move forwards synchronously is two times of the extending distance of the hydraulic oil cylinder rod. According to the system, the telescopic distance of the single-section inner arm is increased, the mounting length of the telescopic system is reduced, and the telescopic distance ratio of the hydraulic oil cylinder rod to the single-section inner arm is 1: 2.

    本申请涉及高空作业车技术领域,尤其是涉及高空作业车单节内臂伸缩系统。该系统中的液压油缸筒与外臂固定,液压油缸筒的前后两侧均对称安装有支撑连接杆,液压油缸杆的端部与支撑连接杆固定,支撑连接杆远离液压油缸筒的一侧设置有链轮链条组,链轮链条组的一端与液压油缸筒固定,链轮链条组的另一端与內臂固定,链轮链条组的长度大于液压油缸杆的伸出长度;液压油缸杆带动支撑连接杆同步移动,链轮链条组在支撑连接杆移动的同时,一边转动一边移动,链轮链条组带动內臂同步向前移动的距离是液压油缸杆伸出距离的两倍。该系统增加了单节内臂的伸缩距离,减少伸缩系统的安装长度,实现液压油缸杆与单节内臂的伸缩距离比为1:2。


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    Title :

    Telescopic system for single-section inner arm of overhead working truck


    Additional title:

    高空作业车单节内臂伸缩系统


    Contributors:
    JI JIANYI (author) / ZHANG SHIGONG (author) / ZHANG MINGJUN (author) / LU XINGCHEN (author) / WEI FUZUN (author) / ZHENG ZHAOQIANG (author) / WU PENG (author)

    Publication date :

    2024-02-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile




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