煤炭工程 ›› 2017, Vol. 49 ›› Issue (6): 103-106.doi: 10.11799/ce201706030

• 研究探讨 • 上一篇    下一篇

基于负载敏感的采煤机调高液压系统效率分析

李鹏,孔屹刚   

  1. 太原科技大学
  • 收稿日期:2016-06-12 修回日期:2017-02-28 出版日期:2017-06-09 发布日期:2017-06-20
  • 通讯作者: 孔屹刚 E-mail:yigangkong@163.com

Efficiency analysis of shearer with height-adjusting hydraulics system based on load sensitive

  • Received:2016-06-12 Revised:2017-02-28 Online:2017-06-09 Published:2017-06-20

摘要: 提出了一种应用负载敏感技术的采煤机变量泵调高液压系统,在理论分析其工作原理和效率基础上,通过仿真软件Matlab/Simhydraulics建立了负载敏感变量泵调高液压系统仿真模型。仿真结果表明,通过负载敏感变量泵调高液压系统和现有常规技术定量泵调高液压系统的效率比较,在采煤机动态性能一致的前提下,负载敏感变量泵调高液压系统效率要远高于定量泵调高液压系统。

关键词: 采煤机, 调高液压系统, 负载敏感, 效率分析

Abstract: Abstract: The essential problem of the low power consumption in shearer study is the efficiency of height-adjusting hydraulics system. In this paper, a method of variable displacement pump with height-adjusting hydraulics system of shearer has been proposed. Based on the theoretically analyze its operation principles and efficiency, by using simulation tool Simhydraulics in Matlab, it builds up a model of load sensitive variable displacement pump with height-adjusting hydraulics system. The results of simulation show that the efficiency of load sensitive variable displacement pump with height-adjusting hydraulics system is far outclass that of fixed displacement pump on the premise that shear dynamic performance is constant, through the comparison of the efficiency of load sensitive variable displacement with height-adjusting hydraulics system and that of conventional technological fixed displacement pump.

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