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A method for controlling the machine hydraulically driven operating speed, the machine hy hydraulically used operating system and steering system
A method for controlling the machine hydraulically driven operating speed, the machine hy hydraulically used operating system and steering system
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机译:控制机器液压驱动的运行速度的方法,机器液压使用的操作系统和转向系统
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摘要
The present invention concerns a method for controlling the speed of motion of a hydraulically operated machine, an operating system and a control device of the machine. The flow line (3) of the medium from the pump (2) to the machine (1) is divided into two branches (10, 11). By means of a valve (8), the second branch (11) can be set to feed medium either to the machine (1) or to return the medium to the tank (4) of the pump. Such a flow is led to the second valve (8), that at a speed of rotation of the pump lower than the highest speed of rotation, the difference between the flow supplied by the pump and the flow through the second branch produces the desired slowest speed on motion of the device. When the valve (8) is set to return the medium to the tank (4) of the pump, the flow from the pump (2) is adjusted by changing the speed of rotation of the pump.
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