The invention relates to a container lifting and rear door opening linkage hydraulic system, in particular to a dumper hydraulic rear door linkage system which comprises an oil tank assembly (1) and a gear pump (2) arranged in the oil tank assembly (1). An oil outlet of the gear pump (2) is respectively connected with a container lifting oil cylinder (10) and a hydraulic rear door oil cylinder (11) through pipelines; a first pneumatic control reversing valve (3) is arranged on a pipeline for connecting the gear pump (2) and the container lifting oil cylinder (10); a second pneumatic control reversing valve (4) is arranged on a pipeline for connecting the gear pump (2) and the hydraulic rear door oil cylinder (11); and oil return pipes of the first pneumatic operated directional valve (3) and the second pneumatic operated directional valve (4) are connected to the oil tank assembly (1). The invention further relates to a rear door device, linkage of container lifting and rear door opening and closing is achieved through the proportional pneumatic control reversing valve, double locking of the rear door is achieved through the gap and the self-locking device, and meanwhile operation efficiency and safety are improved.

    本发明涉及一种货箱举升及后门开启联动液压系统,一种自卸车液压后门联动系统,包括:油箱总成(1),设置在油箱总成(1)内的齿轮泵(2);齿轮泵(2)的出油口分别与货箱举升油缸(10)和液压后门油缸(11)管路连接;齿轮泵(2)与货箱举升油缸(10)连接的管路上设置有第一气控换向阀(3);齿轮泵(2)与液压后门油缸(11)连接的管路上设置有第二气控换向阀(4);第一气控换向阀(3)、第二气控换向阀(4)的回油管均连接至油箱总成(1)。本发明还涉及一种后门装置,本发明通过比例气控换向阀实现货箱举升及后门开闭的联动,并且设置间隙、自锁装置实现后门的双锁紧,同时提高了操作的效率及安全性。


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    Title :

    Container lifting and rear door opening linkage hydraulic system and rear door device


    Additional title:

    一种货箱举升及后门开启联动液压系统及后门装置


    Contributors:
    SUN JIAN (author) / WANG XU (author) / LIU SUMO (author)

    Publication date :

    2023-09-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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