The invention discloses an unfolding vehicle leveling hydraulic system which comprises an oil tank, an unfolding vehicle leveling oil way, an oil supply way and an unlocking oil way, a first front supporting leg oil cylinder and a second front supporting leg oil cylinder in the unfolding vehicle leveling oil way both adopt double-acting oil cylinders, and a first rear supporting leg oil cylinder and a second rear supporting leg oil cylinder both adopt interference inner locking oil cylinders. The oil supply oil way comprises a variable displacement piston pump, an oil inlet of the variable displacement piston pump is connected with the oil tank, and an oil outlet of the variable displacement piston pump is connected with the first front supporting leg oil cylinder, the second front supporting leg oil cylinder, the first rear supporting leg oil cylinder and the second rear supporting leg oil cylinder and connected with the oil tank through an oil return pipe. An oil inlet of the quantitative gear pump is connected with the oil tank, and an oil outlet of the quantitative gear pump is connected with unlocking cavities of the first rear supporting leg oil cylinder and the second rear supporting leg oil cylinder. The device has the advantages of being high in vehicle unfolding and leveling speed, reliable in place, long in supporting time and low in cost.
本发明公开了一种展车调平液压系统,包括油箱、展车调平油路、供油油路和开锁油路,展车调平油路中的第一前支腿油缸和第二前支腿油缸均采用双作用型油缸,第一后支腿油缸和第二后支腿油缸均采用过盈内锁紧型油缸,供油油路包括变量柱塞泵,变量柱塞泵的进油口与油箱连接,变量柱塞泵的出油口分别与第一前支腿油缸、第二前支腿油缸、第一后支腿油缸和第二后支腿油缸连接并通过回油管与油箱连接,开锁油路包括定量齿轮泵,定量齿轮泵的进油口与油箱连接,定量齿轮泵的出油口分别与第一后支腿油缸和第二后支腿油缸的开锁腔连接。本发明具有展车调平速度快、到位可靠支撑时间长、成本低的优点。
Exhibition vehicle leveling hydraulic system, vehicle and exhibition vehicle leveling method thereof
一种展车调平液压系统、车辆及其展车调平方法
2022-12-30
Patent
Electronic Resource
Chinese
IPC: | B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
HEADLAMP LEVELING SYSTEM AND HEADLAMP LEVELING METHOD FOR VEHICLE
European Patent Office | 2022
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