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斗轮机行走装置履带结的失效分析
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作者 苏志辉 黄步玉 +2 位作者 常明 黄勇 雷运生 《铸造技术》 CAS 北大核心 2003年第5期415-417,共3页
履带结是露天煤矿中广泛采用的斗轮式采煤机上的重要零件 ,其运行中的失效会带来灾难性的安全事故。在分析履带结失效原因的基础上 ,参考有关资料 ,研制新的钢种。用新钢种制造的履带结在煤矿中运行正常 。
关键词 履带结 斗轮机 失效 本体材料流变 铸造缺陷 焊接性问题
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Development of two rescue robots for disaster relief operations in narrow debris 被引量:1
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作者 臧希喆 Wang Jibin Liu Yixiang 《High Technology Letters》 EI CAS 2015年第4期399-406,共8页
This paper proposes two novel rescue robots,including a cutter robot and a jack robot,which are aimed to contribute to rescue activities such as to cut through obstacles and to jack up debris in dangerous sites and na... This paper proposes two novel rescue robots,including a cutter robot and a jack robot,which are aimed to contribute to rescue activities such as to cut through obstacles and to jack up debris in dangerous sites and narrow spaces,where a rescue team can not work or approach.Firstly,a multilinked tracked rescue robot platform composed of connected crawler vehicles is developed,which has high mobility on irregular terrain and ability to move into narrow collapsed structures.Then,the cutter robot and jack robot are designed on the basis of rescue robot platform equipped with a cutter or a jack mechanism and corresponding manipulators in the front segment.The cutter refitted by an angle grinder is able to cut through 10 mm diameter steel bars.The electric jack mechanism designed based on multiple layers screw sleeves structure can lift up 300 kg load from 70 mm to 400 mm.Experimental results validate the capability of the two rescue robots. 展开更多
关键词 rescue robot connected crawler vehicles cutter robot jack robot
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