A hydraulic control operation system of engineering machinery comprises a control valve group, a control handle, an execution element, a pilot control oil way and a controller, and the control valve group is connected with the control handle and the execution element. The pilot control oil way comprises a pilot oil source, a switching valve and a pilot oil control valve, an oil inlet of the switching valve is connected with the pilot oil source, two working oil ports are connected with the control handle through a first oil way and a second oil way respectively, and the pilot oil control valve is arranged on the second oil way; the switching valve and the pilot oil control valve are connected with the controller, the controller controls the switching-on of the first oil way or the second oil way by controlling the switching valve, and when the second oil way is switched on, the controller is further used for receiving the action signal and adjusting the pressure of the hydraulic oil passing through the pilot oil control valve according to the received action signal. The hydraulic control operation system can solve the problem of large speed reduction proportion difference of different actions during speed reduction, and is simple in structure, low in cost and easy to implement. The invention further relates to a hydraulic control operation method of the engineering machinery and the engineering machinery.
一种工程机械的液控操作系统,包括控制阀组、控制手柄、执行元件、先导控制油路和控制器,控制阀组连接控制手柄和执行元件。先导控制油路包括先导油源、切换阀和先导油控制阀,切换阀的入油口连接先导油源、两个工作油口分别通过第一油路和第二油路与控制手柄连接,先导油控制阀设置在第二油路上;切换阀和先导油控制阀与控制器连接,控制器通过控制切换阀控制第一油路或第二油路的导通,在第二油路导通时,控制器还用于接收动作信号并根据接收的动作信号调节通过先导油控制阀的液压油的压力。液控操作系统能解决不同动作在减速时存在的降速比例差异大的问题,且结构简单,成本低,易于实施。本发明还涉及一种工程机械的液控操作方法及工程机械。
Hydraulic control operation system and hydraulic control operation method of engineering machinery and engineering machinery
工程机械的液控操作系统、液控操作方法及工程机械
2025-01-10
Patent
Electronic Resource
Chinese
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