矿用卷缆装置三级调速液压系统研究
Research on hydraulic system with three-stage speed regulation of mine-used cable winding device
【索引】李朋朋,张丹,孟祥强,等.矿用卷缆装置三级调速液压系统研究[J].工矿千亿国际app下载,2019,45(4):59-62.
【Reference】LI Pengpeng,ZHANG Dan,MENG Xiangqiang,et al.Research on hydraulic system with three-stage speed regulation of mine-used cable winding device[J].Industry and Mine Automation,2019,45(4):59-62.
【DOI】10.13272/j.issn.1671-251x.2018120003
【作者】李朋朋1,张丹2,孟祥强1,曹连民1,孙宝海3
【Author】 LI Pengpeng1,ZHANG Dan2,MENG Xiangqiang1,CAO Lianmin1,SUN Baohai3
【作者机构】1.山东科技大学 机械电子工程学院, 山东 青岛266590;2.山东交通技师学院 交通工程学院, 山东 临沂276017; 3.益和电气集团股份有限公司, 山东 青岛266590
【Unit】1.College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China; 2.School of Traffic Engineering, Shandong Traffic Technician College, Linyi 276017, China; 3.Yihe Electric Group Co., Ltd., Qingdao 266590, China
【摘要】针对电缆卷放速度与连续采煤机行进速度不能同步的问题,在分析卷缆装置三级调速液压系统原理的基础上,建立了三级调速液压系统仿真模型。该系统利用节流阀与压力补偿阀组合设计降低了设计复杂性,避免了压力补偿阀不工作时带来的能量损耗;实现了液压马达110,80,50 r/min三级转速变化,从而实现了卷缆装置变速调节功能,保证了电缆卷放速度与连续采煤机行进速度的同步性。仿真和测试结果表明,节流阀控制较灵敏,回路流量变化较稳定;虽然在节流阀导通和截止瞬间管道流量存在轻微波动,但不影响整体控制效果;在压力补偿阀的作用下,系统管道压力基本稳定在14 MPa,达到了较好的稳压、控压效果;测试得到的液压马达转速和转矩变化趋势与仿真结果基本吻合,三级调速效果较为明显。
【Abstract】In view of the problem that cable winding speed cannot be synchronized with speed of continuous shearer, based on analysis of principle of hydraulic system with three-stage speed regulation of the cable winding device, simulation model of hydraulic system with three-stage speed regulation was established. The system uses combination design of throttle valve and pressure compensation valve to reduce design complexity and avoid energy loss when pressure compensation valve does not work. The three-stage speed regulation of 110, 80, 50 r/min of hydraulic motor is achieved, and so speed adjustment function of the cable winding device is realized, and synchronization of the cable winding speed and the continuous shearer traveling speed is ensured. The simulation and test results show that the throttle control is sensitive and the change of loop flow is stable; although there is slight fluctuation of pipeline flow at the opening and closing moments of the throttle valve, it does not affect the overall control effect; under the action of pressure compensation valve, the pipeline pressure of the system is basically stable at 14 MPa, which achieves good regulation and control effect of pressure; the test results of speed and torque trend of hydraulic motor are basically consistent with the simulation results, and the three-stage speed regulation effect is obvious.
【关键词】 连续采煤机; 矿用卷缆装置; 三级调速液压系统; 变速调节; 液压马达; 节流阀; 压力补偿阀
【Keywords】continuous shearer; mine-used cable winding device; hydraulic system with three-stage speed regulation; variable speed adjustment; hydraulic motor; throttle valve; pressure compensation valve
【文献出处】工矿千亿国际app下载,2019年4期
【基金】首批国家虚拟仿真实验教学项目(201806022);矿业工程国家级实验教学示范中心(山东科技大学)开放基金项目(KYSF20180206);山东科技大学教育教学研究“群星计划”项目(QX2018Z05)
【分类号】TD632
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