The invention is applicable in the technical field of four-way shuttle vehicles, and provides a synchronous lifting mechanism. The synchronous lifting mechanism comprises a power unit, an execution unit and a control unit; the power unit is used for driving hydraulic oil to move; the execution unit comprises a plurality of oil cylinders which are arranged in series, an oil inlet of each oil cylinder is provided with an overflow piece, the overflow pieces and the oil cylinders are installed in parallel, and the overflow pieces are used for supplementing the oil cylinders with oil in return strokes of the oil cylinders and forcibly resetting piston rods of the oil cylinders; and the control unit is used for controlling the power unit and the execution unit. The synchronous lifting mechanism has the beneficial effects that an automatic compensation function is realized by the aid of internal parallel oil paths of overflow valves and the oil cylinders, the technical problem that the synchronization precision of the lifting mechanism is reduced due to internal leakage and external leakage of a hydraulic system is solved, the stability of the four-way shuttle vehicle during working is improved, and the later maintenance cost and workload are reduced.

    本发明适用于四向穿梭车技术领域,提供了一种同步升降机构,包括:动力单元,用于驱动液压油运动;执行单元,包括若干串联布置的油缸,每个所述油缸的进油口处均安装有溢流件,所述溢流件与所述油缸并联安装,用于在所述油缸回程时为所述油缸补油,强制使所述油缸的活塞杆复位;以及控制单元,用于控制上述单元,本发明的有益效果是:利用溢流阀与油缸的内部并联油路,实现了自动补偿功能,解决了升降机构因液压系统内泄、外泄导致的同步精度降低的技术问题,提高了四向穿梭车工作时的稳定性,减少了后期维护成本和工作量。


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    Title :

    Synchronous lifting mechanism and four-way shuttle vehicle


    Additional title:

    一种同步升降机构及四向穿梭车


    Contributors:
    CAI CHUANYU (author) / YIN XIAO (author)

    Publication date :

    2021-09-07


    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



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