摘要
液压支架作为地下综采工作面的关键设备,在工作过程中的受力多为组合变形,且情况比较复杂,因此其强度、刚度、稳定性问题显得尤为重要。本文采用Pro/E软件对ZY12000/28/64D液压支架的构件进行建模、组装,然后将三维模型导入ANSYS中进行有限元分析,分别以液压支架的顶梁、掩护梁、连杆和底座作为研究对象,分析当顶梁受到偏心载荷,同时底座两端也受到载荷作用时,其应力和位移的分布情况,并分析出每个结构在此工作状态中均存在应力集中现象。根据其分析结果,在保证安全和焊接工艺合格的前提下对构件进行结构优化,将应力集中比较严重的筋板的厚度进行修整。结构优化后应力集中得到有效的改善,增强液压支架的安全可靠性。
As the key equipment of underground fully mechanized mining face, the hydraulic support is mostly combined deformation in the working process, and the situation is more complex, so the strength, stiffness and stability are particularly important. This paper uses pro/E software to model and assemble the components of ZY12000/28/64 D hydraulic support, and then imports the three-dimensional model into ANSYS for finite element analysis. Taking the top beam, shield beam, connecting rod and base of the hydraulic support as the research objects, this paper analyzes the distribution of stress and displacement when the top beam is subjected to eccentric load and both ends of the base are also subjected to load, so each structure has stress concentration in this working state. According to the analysis results, on the premise of ensuring safety and welding process qualified, the structure of the component is optimized, the thickness of the rib plate with serious stress concentration is trimmed. The results show that the stress concentration is effectively improved after the structural adjustment, so as to enhance the safety and reliability of the hydraulic support.
作者
史姣
李晓
SHI Jiao;LI Xiao(Shanxi Institute of Science and Technology,Jincheng Shanxi 048000,China;Zhejiang Holip Electronic Technology Co.,Jiaxing Zhejiang 310007,China)
出处
《热处理技术与装备》
2022年第5期52-56,共5页
Heat Treatment Technology and Equipment
基金
山西省高等学校科技创新项目(2020L0610)。
关键词
液压支架
有限元分析
应力
位移
安全可靠性
powered support
finite element analysis
stress
displacement
safety and reliability
