An accelerator control device of an engineering vehicle comprises a hydraulic accelerator controller, an oil cup, an accelerator oil cylinder, a first hydraulic control reversing valve and a second hydraulic control reversing valve. The hydraulic accelerator controller comprises a cylinder body; the cylinder body comprises a first oil port; an execution port A of the first hydraulic control reversing valve is communicated with a control port K of the second hydraulic control reversing valve; and a first oil port of the cylinder body is communicated with an oil inlet P of the second hydraulic control reversing valve. The accelerator control device further comprises a third hydraulic control reversing valve; an execution port A of the second hydraulic control reversing valve is communicatedwith a first oil inlet P1 of the third hydraulic control reversing valve; and a second oil inlet P2 of the third hydraulic control reversing valve is communicated with a first oil port of the cylinderbody of the hydraulic accelerator controller, and an execution port A of the third hydraulic control reversing valve is communicated with a rodless cavity of an accelerator oil cylinder. By means ofthe accelerator control device, when the engineering vehicle works, an accelerator can be increased when a neutral gear is engaged, and when the engineering vehicle does not work, the accelerator cannot be increased when the neutral gear is engaged.

    一种工程车辆的油门控制装置,包括液压油门控制器、油杯、油门油缸、第一液控换向阀和第二液控换向阀;所述液压油门控制器包括缸体;所述缸体包括第一油口;所述第一液控换向阀的执行口A与第二液控换向阀的控制口K连通;所述缸体的第一油口与第二液控换向阀的进油口P连通。还包括第三液控换向阀;所述第二液控换向阀的执行口A与第三液控换向阀的第一进油口P1连通;所述第三液控换向阀的第二进油口P2与液压油门控制器的缸体的第一油口连通,第三液控换向阀的执行口A与油门油缸的无杆腔连通。本发明可实现工程车辆在作业时,挂空挡可以加油门,工程车辆不在作业时,挂空挡不能加油门。


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    Title :

    Accelerator control device for engineering vehicle


    Additional title:

    工程车辆的油门控制装置


    Contributors:
    LIU JIAN (author)

    Publication date :

    2021-02-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / 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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