液压与气动2025，Vol.49Issue(9)：19-27,9.DOI:10.11832/j.issn.1000-4858.2025.09.003
基于自主补压的液压支架自动跟机性能优化研究
Research on Performance Optimization of Automatic Following of Hydraulic Supports Based on Independent Pressure Compensation
摘要
Abstract
The extended supply and return pipelines of the comprehensive working face result in high-pressure loss along the hydraulic support system,and the supply strategy of the emulsion pump station is incompatible with the operation of hydraulic supports.These result in a slow dynamic response of the key actuators for hydraulic supports,which limits the automatic following speed.According to above problems,on the basis of the current intelligent integrated liquid supply system,we add a high-pressure small-displacement pump as a centralized liquid supply and pressurization system for the column lifting action.And a mathematical model of the column-pushing hydraulic cylinder for the hydraulic support group in the comprehensive working face is established.Then,an automatic following strategy for hydraulic supports with rapid fluid supply and pressurization of the lifting column is proposed.Additionally,a simulation model of the fluid supply system for a comprehensive working face,based on independent pressure compensation,is established by using AMESim.The effectiveness and superiority of the proposed automatic machine following control strategy are studied,and the fluid supply schemes of hydraulic supports under different flow conditions are compared.The research demonstrates that the proposed system and its control strategy can enhance the following speed of hydraulic supports by 30.11％and reduce the pressure-building time of the column initial support pressure by 76％.We offer a novel solution to problems such as the unsmooth flow channel of the lifting column,insufficient initial support pressure and excessive back pressure during the process of lowering the column.关键词
综采工作面/供液系统/液压支架群/自主补压/压力流量匹配Key words
comprehensive working face/fluid supply system/hydraulic supports/independent pressure compensation/pressure-flow matching分类
机械制造引用本文复制引用
王伟..基于自主补压的液压支架自动跟机性能优化研究[J].液压与气动,2025,49(9):19-27,9.基金项目
国家重点研发计划(2023YFC2907504) （2023YFC2907504）
