| 伺服电机控制高压大流量双泵液压动力系统研究 |
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| 引用本文： | 高俊,喜冠南.伺服电机控制高压大流量双泵液压动力系统研究[J].液压与气动,2018,0(6):35-39. |
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| 作者姓名： | 高俊 喜冠南 |
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| 作者单位： | 1. 武汉商学院机电工程与汽车服务学院， 湖北武汉430056；
2. 南通大学机械工程学院， 江苏南通226019 |
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| 基金项目： | 江苏省科技支撑计划(BE2011116)；武汉商学院科研项目（2017KY009） |
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| 摘 要： | 由伺服电机和液压泵组成的新型泵控系统已经应用于液压机械设备中，为解决大型液压机对液压动力源高压大流量输出的要求，在传统伺服电机泵控系统中引入了高压主泵和低压副泵，并通过双泵切换来实现高压大流量输出。通过控制器与伺服电机控制电机输出转矩和转速，进而实现对输出压力和流量的控制。通过合流阀块实现对双泵合流与分流的控制，进而实现液压系统的大流量或高压力输出。以液压机一个工作循环为基础进行了性能试验，结果表明该液压动力系统满足压力、流量设计要求，响应速度快，控制精度高。
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| 关 键 词： | 伺服电机 高压 大流量 液压机 |
| 收稿时间： | 2018-05-16 |
High Pressure and Large Flow Dual Pump Hydraulic Power System Controlled by Servo Motor |
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| GAO Jun,XI Guan-nan.High Pressure and Large Flow Dual Pump Hydraulic Power System Controlled by Servo Motor[J].Chinese Hydraulics & Pneumatics,2018,0(6):35-39. |
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| Authors: | GAO Jun XI Guan-nan |
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| Affiliation: | 1. School of Mechatronics Engineering and Automotive Service， Wuhan Business University， Wuhan， Hubei430056；
2. School of Mechanical Engineering， Nantong University， Nantong， Jiangsu226019 |
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| Abstract: | A new type of pump control system composed of servo motor and hydraulic pump is applied to hydraulic machinery. In order to solve the problem of high pressure and large flow output of hydraulic power source in a large hydraulic press, a high pressure main pump and a low pressure auxiliary pump are introduced into a traditional servo motor pump control system. The high pressure and large flow hydraulic output is realized by double pump switching. The system controls output torque and speed through a controller and a servo motor, thus realizing the control of output pressure and flow rate. The double pump confluence (large flow rate) and single pump output (high pressure) are controlled by a confluence valve block. The performance experiments are carried out based on a working cycle of hydraulic press. The results show that the hydraulic power system meets the requirements of pressure and flow design, and its response speed and high control accuracy are certified. |
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