摘要
结合煤层条件和使用要求阐述了3种伸缩梁结构形式的使用条件及优缺点,并根据伸缩梁的导向形式分析了伸缩梁蹩卡的原因,给出了解决措施:伸缩梁结构设计时应优先选用外导向形式,单边导向间隙一般为5~7 mm。
According to the coal seam condition and the requirements, the conditions and advantages and disadvantages of the three kinds of telescopic beam structure were expounded, and the reason of the telescopic beam jamming was analyzed according to the guiding form of the telescopic beam, the solution was given： the external guide form should be preferred for telescopic beam structure design, the unilateral guide gap was generally 5-7 mm.
出处
《煤矿机械》
2017年第6期94-95,共2页
Coal Mine Machinery
关键词
破碎顶板
伸缩梁结构
导向形式
憋卡
Key wards
broken roof
telescopic beam structure
guiding form
jamming
