工程科学学报2016，Vol.38Issue(7)：906-912,7.DOI:10.13374/j.issn2095-9389.2016.07.003
三自由度双并联液压支架的设计与稳定性分析
Design and stability analysis on three-DOF double parallel hydraulic support
摘要
Abstract
Since the column and the top beam of the present four-bar hydraulic support fail to bear the lateral force, the lateral force is transferred to the rod via the shield beam, which often leads to the falling down of the support or damage of the support mecha-nism. With regard of such a theoretical shortcoming, this article introduces a new type of double parallel hydraulic support based on the 3-RPC parallel mechanism. The working space of the hydraulic support is analyzed and the trajectory formula of the top beam is presented. Through the force analysis of the hydraulic support under the condition of partial load and large dip angle, the hydraulic support can bear the forces from three directions and an accurate mechanical relational expression is given. ADAMS is applied to do the stability simulation of the hydraulic support. The results show that the design of such a hydraulic support meets the supporting re-quirements of coal mines and it is feasible in technology.关键词
液压机械/支架/三自由度/侧向力/机械设计/稳定性分析Key words
hydraulic machinery/supports/three-degree-of-freedom/lateral forces/machine design/stability analysis分类
矿业与冶金引用本文复制引用
王成军,李龙,胡松,孟祥瑞,刘琼..三自由度双并联液压支架的设计与稳定性分析[J].工程科学学报,2016,38(7):906-912,7.基金项目
国家自然科学基金资助项目(51274008) （51274008）
安徽省博士后基金资助项目A类(2015B045) （2015B045）
