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发明名称
采煤工作面铰接顶梁的柔性背板
摘要
本实用新型公开了一种煤矿井下普炮采工作面铰接顶梁上使用的柔性背板,主要由金属芯板、橡胶柔性层、拉接链条三部分构成。金属芯板的两面固结橡胶柔性层,棱边上设置拉接链条。使用时,将其背设于铰接顶梁与顶板之间,拉接链条勾挂于顶梁之上或相互拉接,由于其所具有柔性作用故十分有利于管理顶板,且能反复使用,从而可取代目前复用率极低的木背板,降低煤矿坑木消耗。
申请公布号
CN88201675U
申请公布日期
1988.11.09
申请号
CN88201675
申请日期
1988.03.07
申请人
张荫凤
发明人
张荫凤
分类号
E21D17/10;E21D23/03
主分类号
E21D17/10
代理机构
代理人
主权项
1、一种由金属芯板[1]、橡胶柔性层[2]、拉接链条[3]构成的采煤工作面铰接顶梁的柔性背板,其特征在于: a所述的金属芯板[1]的两面固结有橡胶柔性层[2], b所述的金属芯板[1]的棱边上设置有拉接链条[3]。
地址
山西省阳泉矿务局三矿维运区供电队
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