Practicability analysis of hydraulic support design system for steeply dipping coal seam inclined pseudo inclined working face

被引:0
作者
Wu, Yongping [1 ,2 ]
Hu, Tao [1 ]
Hu, Bosheng [1 ,2 ]
Xie, Panshi [1 ,2 ]
Du, Yuqian [1 ]
Yan, Zhuangzhuang [1 ]
Wang, Tong [1 ]
Liu, Baoheng [1 ]
机构
[1] School of Energy Engineering, Xi'an University of Science and Technology, Xi'an
[2] Key Laboratory of Western Mine Exploitation and Hazard Prevention Ministry of Education, Xi'an University of Science and Technology, Xi'an
来源
Meitan Kexue Jishu/Coal Science and Technology (Peking) | 2024年 / 52卷 / 07期
关键词
adaptability test; hydraulic support; parametric design system; steeply dipping coal seam;
D O I
10.12438/cst.2023-1451
中图分类号
学科分类号
摘要
In order to solve the problems of ignoring multi-dimensional load characteristics, cumbersome modeling process and long design cycle in the design process of hydraulic support in steeply dipping angle coal seam, combined with the load characteristics of hydraulic support in large dip angle pseudo-inclined working face, the design system of large dip angle hydraulic support is developed. Based on the comprehensive research methods of motion simulation, strength test and physical experiment, taking the design of ZY5000/15.5/38 hydraulic support for steeply dipping angle coal seam as an example, the mechanical model is established according to the multi-dimensional stress characteristics of hydraulic support in large dip angle pseudo-inclined stope. The spatial load characteristics of large dip angle hydraulic support are analyzed, and the mechanical linear matrix of top beam and shield beam of hydraulic support in pseudo-inclined working face is established. The design system of hydraulic support is built by using VB.NET as the development language combined with linear matrix and SOLIDWORKS secondary development modeling software, and a good human-computer interaction user interface is developed. The research and analysis show that the trajectory range of the front end of the top beam of the model hydraulic support generated by the system is about 48 mm, and the trajectory curve of the front end of the top beam of the support satisfies the characteristics of double torsion line. The maximum stress value of the model support is 146.7 MPa, which is far less than the equivalent stress value of the material yield, and the maximum deformation displacement is not more than 0.531 mm. The working resistance of the physical model hydraulic support with a similarity ratio of 1:5 is about 38 kN. The loading characteristics of the top beam and the shield beam of the support are tested under different conditions. The mechanical data of the model support in the experiment are basically consistent with the mechanical data generated by the system, and the experiment meets the motion requirements and bearing characteristics of the support in the stages of initial support, resistance increase, constant resistance and pressure relief. The research results reflect the good adaptability of the model hydraulic support under the design system, which has certain scientific and practical significance for enriching the design theory of hydraulic support in steeply dipping angle coal seam and guiding the design and production of hydraulic support. © 2024 China Coal Society. All rights reserved.
引用
收藏
页码:187 / 198
页数:11
相关论文
共 25 条
  • [1] WU Yongping, YUN Dongfeng, XIE Panshi, Et al., Progress, practice and scientific issues in steeply dipping coal seams fully-mechanized mining, Journal of China Coal Society, 45, 1, pp. 24-34, (2020)
  • [2] WU Yongping, LIU Kongzhi, YUN Dongfenget, Et al., Research progress on the safe and efficient mining technology of steeply dipping seam, Journal of China Coal Society, 39, 8, pp. 1611-1618, (2014)
  • [3] YUN Dongfeng, YANG Chenhui, WU Yongping, Et al., Roof caving form and steady state control of shield powered support in longwall fully-mechanized mining with steeply dipping seam, Journal of Xi'an University of Science and Technology, 43, 2, pp. 255-263, (2023)
  • [4] YUN Dongfeng, GU Bing, WU Yongping, Et al., Typical application examples and improvement research of hydraulic powered support applied to fully-mechanized longwall coal mining face in steep dipping seam, Coal Science and Technology, 45, 1, pp. 60-67, (2017)
  • [5] WANG Guofa, Study and practices on technical system of hydraulic powered supports, Journal of China Coal Society, 35, 11, pp. 1903-1908, (2010)
  • [6] XU Yajun, WANG Guofa, Interference detection of powered support model based on virtual prototyping, Colliery Mechanical& Electrical Technology, 1, pp. 34-36, (2005)
  • [7] HE Ming, Zeng Qingliang, ZHANG Xin, Et al., Motion simulation and finite element analysis of hydraulic support based on Pro/E and ANSYS, Coai Mine Machinery, 30, 2, pp. 75-77, (2009)
  • [8] CAI Wenshu, CHENG Zhihong, CHEN Chunfeng, 3D Modeling and Dynamic Simulation of Hydraulic Support with Solidworks, Coal Mine Machinery, 11, pp. 165-167, (2008)
  • [9] YU Tao, Liu Xiujie, ZHANG Yujiao, Et al., Three-dimension modeling and motion simulation of hydraulic support based on Pro/E, Industry and Mine Automation, 42, 4, pp. 81-82, (2016)
  • [10] LIU Xiaolian, LI Kun, ZHAO Xiongpeng, AMESim Modeling and simulation of hydraulic support lifting circuit, Mechanical Engineer, 12, pp. 153-155, (2020)