The invention provides a hydro-pneumatic suspension hydraulic system and an engineering vehicle. The hydro-pneumatic suspension hydraulic system comprises a left suspension oil cylinder set, a right suspension oil cylinder set, a first connecting oil way, a second connecting oil way, a rigid-flexible switching valve and a combined suspension main valve. The first connecting oil way is connected with a rod cavity of the left suspension oil cylinder set and a rodless cavity of the right suspension oil cylinder set. The second connecting oil way is connected with a rodless cavity of the left suspension oil cylinder set and a rod cavity of the right suspension oil cylinder set. Rigid and flexible switching valves are arranged on the first connecting oil way and the second connecting oil way; the combined type suspension main valve is communicated with the first connecting oil way and the second connecting oil way, and the combined type suspension main valve is matched with the rigid-flexible switching valve and controls action or locking of the left suspension oil cylinder set and the right suspension oil cylinder set. The suspension main valves on the left side and the right side are integrated into the combined type suspension main valve, the configuration number of the main valves is reduced, the installation space of the main valves is saved, hydraulic oil ways and pipelines are simplified, and machining is more convenient.

    本发明提供一种油气悬挂液压系统及工程车辆,该油气悬挂液压系统包括左悬挂油缸组、右悬挂油缸组、第一连接油路、第二连接油路、刚柔性切换阀和组合式悬架主阀;第一连接油路连接左悬挂油缸组的有杆腔和右悬挂油缸组的无杆腔;第二连接油路连接左悬挂油缸组的无杆腔和右悬挂油缸组的有杆腔;第一连接油路和第二连接油路上均设有刚柔性切换阀;组合式悬架主阀与第一连接油路和第二连接油路均油路连通,组合式悬架主阀和刚柔性切换阀配合并控制左悬挂油缸组和右悬挂油缸组的动作或锁定。本发明通过将左右两边的悬架主阀集成为一个组合式悬架主阀,减少了主阀的配置数量,节约了主阀的安装空间,简化了液压油道及管路,加工更方便。


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    Title :

    Hydro-pneumatic suspension hydraulic system and engineering vehicle


    Additional title:

    油气悬挂液压系统及工程车辆


    Contributors:
    ZHANG JIANJUN (author) / LI WU (author)

    Publication date :

    2023-05-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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