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公开(公告)号:US4380410A
公开(公告)日:1983-04-19
申请号:US243432
申请日:1981-03-13
申请人: Hans Bull , Gerhard Ewich , Gunther Kuschke , Alfred Maykemper , Josef Welzel
发明人: Hans Bull , Gerhard Ewich , Gunther Kuschke , Alfred Maykemper , Josef Welzel
CPC分类号: E21D23/083 , E21D23/0409
摘要: A self-advancing mine roof support has a beam-like abutment adapted to be disposed generally adjacent and parallel to a work face. Three roof support elements are spaced apart along the abutment and are pivoted to the abutment. The abutment may be angled relative to the direction of advance by arranging the three support elements in staggered formation. A beam of the central support element is pivoted to the abutment. The two outer roof support elements are connected to the abutment by a linkage, e.g., guide arms, which allows the abutment to pivot about the beam of the central element without changing the distance between the three elements as measured at right angles to the direction of advance.
摘要翻译: 自推进的矿顶支架具有适于大致相邻并平行于工作面设置的梁状基台。 三个屋顶支撑元件沿着邻接件间隔开并且枢转到支座。 通过将三个支撑元件布置成交错的构造,邻接件可以相对于前进方向成角度。 中心支撑元件的梁枢转到支座。 两个外部屋顶支撑元件通过联动装置(例如导向臂)连接到邻接件,该导向臂允许邻接件围绕中心元件的梁枢转,而不改变三个元件之间的距离,如在与 提前。
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公开(公告)号:US4526495A
公开(公告)日:1985-07-02
申请号:US540019
申请日:1983-10-07
CPC分类号: E21D23/04 , E21D23/0026 , E21D23/0078 , E21D23/0086 , E21D23/083
摘要: A mobile mine roof support assembly has three mine roof support units coupled together by a common transverse beam. Roller devices are mounted beneath the floor sills of the support units. The roller devices are spring biased away from their floor sills so that they can lift the floor sills away from the floor of a working when the assembly is to be moved. At least one roller device of each support unit is a steerable roller device so that the assembly can be steered round bends. Each steerable roller device is pivotally mounted on its floor sill about a vertical axis, and is provided with an associated steering device. The steerable roller devices are preferably coupled together by means of a common steering device.
摘要翻译: 移动式矿山屋顶支撑组件具有通过公共横梁联接在一起的三个矿山屋顶支撑单元。 滚筒装置安装在支撑单元的底板下方。 辊装置被弹簧偏压离开它们的底板,使得当组件移动时,它们可以将地板梁从地板上提起。 每个支撑单元的至少一个滚子装置是可转向的滚子装置,使得该组件可以转向圆形弯曲。 每个可转向辊装置围绕垂直轴线枢转地安装在其底板上,并且设置有相关联的转向装置。 可操纵的辊装置优选通过公共转向装置连接在一起。
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公开(公告)号:US4075857A
公开(公告)日:1978-02-28
申请号:US734934
申请日:1976-10-22
CPC分类号: E21D23/0034 , E21D23/0082 , E21D23/0409 , E21D23/083
摘要: A shield-type support assembly for a mine working is composed of three substantially identical frames aligned side-by-side. Each frame has a floor sill structure which carries props capable of bracing a roof cap and the floor sill structure between the roof and floor of a mine working. A goaf shield is provided for each frame and these shields combine to screen off the goaf zone. The outer frames on the one hand and the central frame on the other are shiftable in alternation with the aid of shifting rams. One or more transverse arms extend across the forward regions of the frames and the or each arm is carried by the central frame floor sill structure. Guide devices are connected to the arm or arms and serve to guide the frames when shifted by the rams and the rams themselves transmit the shifting or reaction forces to the arm or arms.The coupling between the floor sill structures of the frames permits relative vertical mobility therebetween to cope with variations in the floor level of the working.
摘要翻译: 用于矿山加工的屏蔽型支撑组件由并排排列的三个基本相同的框架组成。 每个框架都有一个底梁结构,其承载能够支撑屋顶盖的道具和在矿井工作的屋顶和地板之间的地板梁结构。 为每个框架设置一个防盗罩,并且这些防护罩组合起来以防止脱钩区域。 一方面的外框架和另一方面的中央框架可以随着公差的变化而交替地移动。 一个或多个横向臂横跨框架的前部区域延伸,并且每个臂由中央框架底板结构承载。 引导装置连接到臂或臂并且用于在通过公柱移动时引导框架,并且公柱本身将移动或反作用力传递到臂或臂。
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公开(公告)号:US4184791A
公开(公告)日:1980-01-22
申请号:US856077
申请日:1977-11-30
CPC分类号: E21D23/083 , E21D23/0017 , E21D23/0409
摘要: A mine roof support assembly comprises three basically similar mine roof support units positioned in a side-by-side relationship along a beam. The central unit is fastened to the beam for movement therewith, and the two outer units are flexibly connected to the beam by respective guide rod assemblies. Each of the outer units is provided with an alignment device, such as a short working stroke hydraulic ram, which acts on the beam in the direction of the longitudinal axis of the beam.
摘要翻译: 矿山屋顶支撑组件包括沿着梁并排定位的三个基本相似的矿顶支撑单元。 中央单元被紧固到梁上以与其一起运动,并且两个外部单元通过相应的导杆组件灵活地连接到梁。 每个外部单元设置有对准装置,例如工作冲程液压油缸,其在梁的纵向轴线方向上作用在梁上。
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公开(公告)号:US2644311A
公开(公告)日:1953-07-07
申请号:US24215951
申请日:1951-08-16
申请人: MALLOY PAUL V
发明人: MALLOY PAUL J
IPC分类号: E21D23/08
CPC分类号: E21D23/083
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