School of Mechanical Engineering,Liaoning Technical University,Fuxin ,China

为掌握外载作用情况对充填液压支架工作状态的影响,进而保证作业安全和延长支架的使用寿命,介绍了虚拟样机正交试验法,并以ZZC8800/20/38型六柱式充填液压支架为例,对支架后顶梁的外载作用点位置对其受力影响程度进行试验研究。结果表明:正交试验法可以用来分析充填液压支架后顶梁的工况,并经试验确定了扭转加载形式为支架的危险工况,起到了缩小外载样本空间的作用,减少了后续样机可靠性试验的试验次数,大幅缩短了试验时间,可为充填液压支架危险工况研究提供有效的指导方法,从而有利于充填液压支架的使用维护。

In order to understand the external load effect affected to the working state of the backfill hydraulic powered support and thus to ensure the operation safety and to prolong the service life of the powered support,the paper introduced the orthogonal test of the virtual prototype.With a ZZC8800/20/38 mode six legs backfill hydraulic powered support as an example,an experiment study was conducted on the stressed influence degree by the external loading effect point location at the rear top beam on the powered support.The results showed that the orthogonal test method could be applied to analyze the performances of the rear canopy on the powered support.The test showed that a torsion loading form would be the danger performances of the powered support,could play a role to reduce the external loading space and could reduce the test times of the reliability test for the late prototype.The test time could be highly reduced.An effective guide method was provided to the danger performance study of the backfill hydraulic powered support,and thus the application and maintenances of the backfill powered support would be favorable.

国家自然科学基金资助项目(51404132)；