The invention discloses an elevator hydraulic system, and particularly relates to a hydraulic elevator gravitational potential energy oil return servo control energy-saving hydraulic system. A gravitational potential energy oil return servo control energy-saving hydraulic system of a hydraulic elevator is structurally characterized in that a low-noise oil pump is communicated with an oil tank, a motor is connected with the low-noise oil pump through a coupler, the oil outlet end of the low-noise oil pump is communicated with an oil cylinder through a main oil conveying passage, and an overflow valve, a one-way valve and a proportional servo valve are arranged on the main oil conveying passage; a branch oil way is communicated with the position, between the one-way valve and the proportional servo valve, on the main oil conveying channel, the branch oil way is communicated with the energy accumulator, a pressure sensor is arranged on the branch oil way, a displacement sensor is arranged on the oil cylinder, and the signal output end of the displacement sensor is connected with the signal receiving end of the proportional servo valve. The invention has the characteristics of energy conservation, stable operation and accurate positioning.
本发明公开了一种电梯液压系统,特别是涉及一种液压电梯重力势能回油伺服控制节能液压系统。液压电梯重力势能回油伺服控制节能液压系统,其结构如下:低噪音油泵与油箱连通,电机通过连轴器与低噪音油泵连接,低噪音油泵出油端通过主输油通路与油缸连通,主输油通路上设置有溢流阀、单向阀、比例伺服阀,主输油通路上单向阀和比例伺服阀之间的位置连通有分支油路,分支油路与蓄能器连通,分支油路上设有压力传感器,在油缸上设置有位移传感器,位移传感器的信号输出端与比例伺服阀的信号接收端连接。本发明具有节能、运行稳定、定位精确的特点。
Hydraulic elevator gravitational potential energy oil return servo control energy-saving hydraulic system
液压电梯重力势能回油伺服控制节能液压系统
2022-12-23
Patent
Electronic Resource
Chinese
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