The invention belongs to the field of engineering machinery, and discloses a hydro-pneumatic suspension control valve and a hydro-pneumatic suspension hydraulic control system.The hydro-pneumatic suspension control valve comprises an oil inlet valve port, a rod cavity connecting oil port and a rodless cavity connecting oil port; the internal oil inlet path is connected with the oil inlet valve port and the rodless cavity connecting oil port and is provided with an ascending valve for controlling the on-off of the internal oil inlet path; and the oil port connecting oil way is connected between the rod cavity connecting oil port and the rodless cavity connecting oil port and is provided with a rigid-flexible switching valve for controlling the on-off of the oil port connecting oil way. According to the suspension oil cylinder hydraulic control system, when the suspension oil cylinder hydraulic control system is switched to the rigid mode, the posture of an automobile body can be directly adjusted in the heavy load state of the automobile crane, and the transition load capacity is improved. And in the heavy-load state, the posture of the truck body is adjustable, so that the function of automatically adjusting the posture of the truck body of the truck crane in the heavy-load state is realized.
本发明属于工程机械领域,公开了一种油气悬挂控制阀和油气悬挂液压控制系统,油气悬挂控制阀包括进油阀口、有杆腔连接油口和无杆腔连接油口:有杆腔回油口,内部连通所述有杆腔连接油口并用于有杆腔可控回油;内部进油油路,连接所述进油阀口与无杆腔连接油口并设有用于控制所述内部进油油路通断的上升阀;以及油口连接油路,连接在所述有杆腔连接油口与无杆腔连接油口之间并设有用于控制所述油口连接油路通断的刚柔性切换阀。本发明的悬挂油缸液压控制系统中,在切换至刚性模式下,可实现汽车起重机重载状态下直接调整车身姿态,提升转场负载能力。而且重载状态下,车身姿态可调,实现了汽车起重机在重载状态下可以自动调整车身姿态的功能。
Hydro-pneumatic suspension control valve and hydro-pneumatic suspension hydraulic control system
油气悬挂控制阀和油气悬挂液压控制系统
2022-10-11
Patent
Electronic Resource
Chinese
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