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两柱掩护式液压支架中平衡千斤顶的应用与保护

Coal Mine Machinery(2012)

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Abstract
通过对两柱掩护式液压支架平衡千斤顶作用及失效原因的分析,总结了国内外近年来比较先进的平衡千斤顶保护措施,指出了在两柱掩护式液压支架的设计过程中,同时采取一种或几种平衡千斤顶保护措施将是未来的发展趋势。
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Key words
stopper,balance compensation valve,two columns cover hydraulic support,balanced jack
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