公开(公告)号：US3854295A

公开(公告)日：1974-12-17

申请号：US39554373

申请日：1973-09-10

申请人： FLETCHER SUTCLIFFE WILD LTD ,  ROUND C

发明人： ROUND C

IPC分类号： E21D19/04 ,  E21D15/58 ,  E21D11/40

CPC分类号： E21D15/58

摘要： A machine for setting permanent mine-roadway supports is formed by forward and rearward machine parts interconnected by two double-acting advancing rams, and comprises a canopy adapted to carry a horizontal roof bar (or bars) of a permanent mine roadway support to be set in position by the machine, hydraulic displacement means for advancing the canopy towards the roof of the roadway or for retracting the canopy from the roof of the roadway, and preferably two hydraulic rams carried by, or supported from, the canopy and adapted, in use, to act directly below the roof bar to be set and on the upper ends of the two vertical legs which complete the permanent mine roadway support by displacing the upper ends of these legs from an inclined position to a set position in which both legs engage the roof bar advanced by the canopy to the roof.

摘要翻译： 用于设置永久性巷道支撑的机器由通过两个双作用推进的公parts相互连接的前部和后部机器部件形成，并且包括适于承载待设定的永久性巷道支撑的水平屋顶杆（或杆）的顶篷 在机器的适当位置，液压位移装置用于将顶盖推进到道路的屋顶，或者用于从巷道的屋顶缩回顶盖，并且优选地是两个液压的公ams，这些液压的公ams承载或支撑在舱盖上并在使用中适应 ，通过将这些腿的上端从倾斜位置移位到两个腿接合的设定位置，直接在屋顶栏的正下方作用并在两个垂直腿的上端上完成永久的矿井道路支撑 屋顶酒吧由天篷前进到屋顶。