A lifting control device of a dumper comprises an oil tank, a hydraulic pump, a manual reversing valve, a lifting oil cylinder, a power cut-off valve, a gear selecting operation valve, a forward gearclutch, a backward gear clutch, a proximity switch, magnetic steel, a main controller, an electromagnetic valve and a pressure sensor. An execution port B of the manual reversing valve is respectivelycommunicated with a rodless cavity of the lifting oil cylinder, a hydraulic control port A of the pressure sensor and a control port K of the power cut-off valve; an execution port A of the power cut-off valve is communicated with a first oil inlet P1 of the electromagnetic valve, a second oil inlet P2 of the electromagnetic valve is communicated with an oil outlet of the hydraulic pump, an execution port A of the electromagnetic valve is communicated with an oil inlet P of the gear selecting operation valve, and a wiring end K of the electromagnetic valve, a wiring end K of the pressure sensor and the proximity switch are all in electric connection or wireless communication connection with the main controller. According to the invention, the dumper can move forwards for a short distanceconveniently when cargoes prop against a cargo compartment, and the dumper cannot move forwards or backwards in a gear engagement manner when the compartment is in a lifting state during normal running of the dumper.

    一种自卸车的举升控制装置,包括油箱、液压泵、手动换向阀、举升油缸、动力切断阀、选挡操作阀、前进挡离合器、后退挡离合器、接近开关、磁钢、主控制器、电磁阀和压力传感器。手动换向阀的执行口B分别与举升油缸的无杆腔、压力传感器的液控口A和动力切断阀的控制口K连通;动力切断阀的执行口A与电磁阀的第一进油口P 1连通,电磁阀第二进油口P2与液压泵的出油口连通,电磁阀的执行口A与选挡操作阀的进油口P连通,电磁阀的接线端K、压力传感器的接线端K和接近开关均与主控制器电连接或无线通讯连接。本发明既可以实现出现货物抵住货厢时自卸车向前移动一小段距离非常方便,又可以实现自卸车正常行驶时车厢在举升状态自卸车不能挂挡前进或后退。


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    Titel :

    Lifting control device of dumper


    Weitere Titelangaben:

    自卸车的举升控制装置


    Beteiligte:
    CHANG LUHUA (Autor:in)

    Erscheinungsdatum :

    2021-01-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS



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