摘要
液压支架作为矿井综采系统的核心支撑装置,其底座结构承担主要的承载功能。文章以ZY7000/21/46D型液压支架为研究对象,运用Ansys有限元软件,对其底座开展多工况力学特性研究。数值模拟结果揭示了底座应力集中的形成机制,关键区域的应力分布特征与结构参数存在直接关联。基于仿真分析结果,对底座实施结构优化设计,根据优化结构参数,对过桥钢板进行加厚处理,同时适当减小侧板及肋板尺寸。仿真测试数据显示,改进后的底座最大等效应力值较原结构减少58.28%,结构最大变形量下降19.30%。该优化方案显著提高了支架结构的力学性能,有效解决了应力集中问题。
As the core support device of fully mechanized mining system in the mine,the base structure of hydraulic support takes on the main bearing function.This paper takes ZY7000/21/46D hydraulic support as the research object,and uses Ansys finite element software to study the mechanical characteristics of its base under multiple working conditions.The numerical simulation results reveal the formation mechanism of the stress concentration in the base,and the stress distribution characteristics of the key areas are directly related to the structural parameters.Based on the simulation analysis results,the structural optimization design of the base is carried out,and according to the optimized structural parameters,the bridge steel plate is thickened,and the size of the side plate and the rib plate is appropriately reduced.The simulation test data show that the maximum equivalent stress value of the improved base is reduced by 58.28%compared with the original structure,and the maximum deformation of the structure is reduced by 19.30%.The optimization scheme significantly improves the mechanical properties of the support structure and effectively solves the problem of stress concentration.
作者
吕学斌
LYU Xuebin(Shanxi Coking Coal Xishan Coal Electricity Zhenchengdi Mine,Taiyuan 030200,Shanxi,China)
出处
《凿岩机械气动工具》
2025年第7期69-71,共3页
Rock Drilling Machinery & Pneumatic Tools
