摘要
分析液压支架立柱外载特征,提出了抗冲击双伸缩立柱结构和原理,建立了双级伸缩立柱冲击力学模型,分析了影响立柱抗冲击性能的因素;进行双伸缩立柱底阀动态分析和设计,解析双伸缩立柱"爬行"现象,给出了避免"爬行"应采取的措施。
This paper analyzed prop＇ s external load characteristic of powered support and presented the structure and principle of double-telescopic prop against shocking. A shocking mechanics model of double-telescopic prop was set up to analyze influence factors of prop＇ s anti-shocking property. It also made dynamic analysis and design for bottom valve of double-telescopic prop, and analyzed ＂crawl＂ phenomenon of double-telescopic prop. Measures for avoiding ＂crawl＂ were presented.
出处
《煤矿开采》
北大核心
2010年第2期62-65,40,共5页
Coal Mining Technology
关键词
双伸缩立柱
冲击载荷
动态分析
底阀
爬行
double-telescopic prop
shocking load
dynamic analysis
bottom valve
crawl
