The invention provides a differential hydraulic pump for a commercial vehicle cab turnover system. The differential hydraulic pump comprises a one-way valve, an overflow valve and a reversing valve, wherein the one-way valve, the overflow valve and the reversing valve are integrated in a valve plate, an oil pool is fixed to one side of the valve plate, three interfaces are arranged in the valve plate, two interfaces are connected with an oil cylinder, and the other interface is connected with an electric pump. The differential hydraulic pump for the commercial vehicle cab turnover system is simple in structure and low in cost; and the differential lifting principle is fully utilized by the oil pump, and one of two oil ways is controlled, so that the size and machining difficulty of the reversing valve are reduced, and the cost is reduced by about 20%.
本发明提供了一种商用车驾驶室翻转系统用差动液压泵,包括单向阀、溢流阀、换向阀,单向阀、溢流阀、换向阀集成在阀板内部,油池固定在阀板一侧,阀板内开有三个接口,其中两个接口连接油缸,另一个接口连接电动泵。使用本发明所述的一种商用车驾驶室翻转系统用差动液压泵,结构简单、成本低,本油泵充分利用差动举升原理,对两个油路中的一个进行控制,减小了换向阀的体积和加工难度,成本降低约20%。
Differential hydraulic pump for commercial vehicle cab turnover system
一种商用车驾驶室翻转系统用差动液压泵
2021-06-18
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Novel piston body assembly of cylinder-pump integrated hydraulic turnover electric pump
European Patent Office | 2020
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