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    • 3. 发明授权
    • Resilienty compressible support column for use in a mine
    • 用于矿山的弹性可压缩支撑柱
    • US5564867A
    • 1996-10-15
    • US330712
    • 1994-10-28
    • Lothar DomanskiRudi Podjadtke
    • Lothar DomanskiRudi Podjadtke
    • E21D15/32E21D15/26
    • E21D15/325
    • An adjustable support column for use between ceiling and floor surfaces of a mine has an outer tube having an outer end braced against one of the surfaces and an inner end and an inner tube having an inner end in the outer tube at the inner end thereof and an outer end braced against the other surface. The tubes are coaxial to an upright axis and a wedge ring carried externally on the inner tube is tapered toward the outer tube and engageable in the inner end of the outer tube for resiliently resisting telescoping of the inner tube into the outer tube with a predetermined force and for permitting telescoping of the inner tube into the outer tube when the tubes are pressed axially together with a force greater than the predetermined force. Formations on the inner tube engage the ring for axially displacing the ring along the inner tube and fix the ring on the inner tube at any of a multiplicity of locations therealong.
    • 在矿山的天花板和地面之间使用的可调节支撑柱具有外管,该外管具有支撑在其中一个表面上的外端,内端和内管在其内端处具有在外管中的内端, 外端支撑在另一个表面上。 管与直立轴线同轴,并且在内管外部承载的楔环朝向外管逐渐变细并且可接合在外管的内端中,用于以预定的力弹性地抵抗将内管伸入外管中 并且当管以大于预定力的力被轴向地挤压时,允许将内管伸缩到外管中。 内管上的结构接合环,用于沿着内管轴向移动环,并将环固定在内管上的多个位置的任何位置。
    • 4. 发明授权
    • Support column for use in a mine
    • 支柱用于矿山
    • US5484130A
    • 1996-01-16
    • US330714
    • 1994-10-28
    • Lothar DomanskiRudi Podjadtke
    • Lothar DomanskiRudi Podjadtke
    • E21D15/24E21D15/502E21D15/56A47F5/00
    • E21D15/566E21D15/24E21D15/502
    • An adjustable column for use between ceiling and floor surfaces of a mine has an outer tube having an outer end and an inner end and an inner tube having an inner end in the outer tube at the inner end thereof and an outer end. The tubes are coaxial to an upright axis and an external screwthread on the outer-tube inner end fits with an inner screwthread on the inner-tube inner end so that the tubes can be screwed relative to each other to change the axial length of the column. One of the outer ends is operatively braced against one of the surfaces and the other outer end is spaced from the other of the surfaces. A resiliently compressible support element is braced axially between the other outer end and the other surface.
    • 在矿山的天花板和地板表面之间使用的可调节柱具有外管和外管,外管具有外端和内端,内管在外管的内端具有内端和外端。 管与直立轴线同轴,外管内端的外螺纹与内管内端上的内螺纹配合,使得管可以相对于彼此拧紧以改变柱的轴向长度 。 一个外端可操作地支撑在其中一个表面上,另一个外端与另一个表面间隔开。 可弹性压缩的支撑元件在另一外端和另一表面之间轴向地支撑。
    • 6. 发明授权
    • Method of controlling the movement of a longwall excavation front,
especially the face or breast of a coal seam
    • 控制长壁开挖前沿,特别是煤层面部或乳房运动的方法
    • US4887935A
    • 1989-12-19
    • US288408
    • 1988-12-21
    • Manfred KoppersLotar SebastianKuno Guse
    • Manfred KoppersLotar SebastianKuno Guse
    • E21C41/16E21C41/18E21D23/14
    • E21C41/16E21D23/144
    • The advance of a mining front in longwall mining is effected by a process in which sensors measure the displacement of displacement cylinders coupling the linked prop elements to the linked conveyor elements with their respective cutters. A computer generates a baseline represented by the actual prop line as a starting point and the conveyor elements and cutters are then advanced all along the mining front via the displacement cylinders. The sensors input the respective displacements into the computer so that an actual conveyor line is determined in the computer and serves as the baseline for after-drawing of the prop elements via the cylinders. The new prop line calculated by the computer then forms the baseline for further advance and the advance can be controlled to ultimately align the conveyor elements along the conveyor line corresponding to a setpoint line defined by the computer and parallel to the original baseline.
    • 采矿前沿在长壁采矿中的进展是通过一个过程实现的,其中传感器测量位移缸的位移,该位移缸通过其相应的切割器将连接的支撑元件联接到连接的输送机元件。 计算机生成由实际支柱线表示的基线作为起点,然后输送机元件和切割器通过位移圆柱体沿着采矿前端全部前进。 传感器将相应的位移输入到计算机中,使得在计算机中确定实际的输送线,并且用作通过气缸抽取支柱元件的基线。 由计算机计算出的新的支路线然后形成用于进一步前进的基线,并且可以控制进给以最终使输送机元件沿着与由计算机定义并与原始基线平行的设定线对应的输送线对准。