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    • 3. 发明授权
    • Advanceable support assembly with inclination control for longwall guide
    • 用于长壁导轨的可倾斜支撑组件
    • US3874734A
    • 1975-04-01
    • US37884473
    • 1973-07-13
    • GEWERK EISENHUETTE WESTFALIA
    • PLEVAK LUBOMIRWOJACZEK EGONROSENBERG HARRYBECKER KUNIBERT
    • E21D23/08E21C35/12E21C35/14E21D23/00E21D23/04E21C29/08
    • E21C35/125E21D23/0034E21D23/0445
    • An advanceable support assembly which has a hollow floor rail which has therein a jack beam connected to the rail through a first piston and cylinder unit accommodated in the jack beam and operable to extend or retract the beam in a telescopic manner. The jack beam is externally hinged to a guide which receives a longwall conveyor. A second piston and cylinder unit coaxial with the first unit and accommodated in the jack beam is connected between the guide and the jack beam. This second unit serves to adjust the inclination of the guide and hence of a coal plough or the like guided thereon. A further piston and cylinder unit is arranged in the rail coaxial with the first and second units and this further unit is coupled via a cranked arm to a roof bar which can be raised or lowered by operating this further unit.
    • 一种可推进的支撑组件,其具有中空的地板轨道,其中具有通过容纳在千斤顶梁中的第一活塞和气缸单元连接到轨道的千斤顶梁,并且可操作地以伸缩方式延伸或缩回梁。 千斤顶梁外部铰接到接收长壁输送机的导轨上。 与第一单元同轴并容纳在千斤顶梁中的第二活塞和气缸单元连接在引导件和千斤顶梁之间。 该第二单元用于调节导向件的倾斜度,并因此调节在其上引导的煤犁等的倾斜度。 另外的活塞和气缸单元布置在与第一和第二单元同轴的轨道中,并且该另一单元经由曲柄臂联接到可以通过操作该另外的单元而升高或降低的顶板。
    • 6. 发明授权
    • Apparatus for preventing cave-ins of excavations
    • 用于防止挖掘洞穴的装置
    • US3949562A
    • 1976-04-13
    • US477084
    • 1974-06-06
    • Gunter BlumenthalErnst Gebehart
    • Gunter BlumenthalErnst Gebehart
    • E21D23/04E21D23/08E21D15/44
    • E21D23/0445E21D23/085
    • An apparatus is disclosed for preventing cave-ins of mining galleries and other underground excavations. It includes a base, a roof-supporting shield extending upwardly from the base and a free edge to which a roof-supporting cap is pivoted, and an advancing arrangement for advancing the apparatus towards and away from a face of the excavation. The advancing arrangement has a shiftable carriage which can move towards and away from this face and which has an end directed towards the latter, and an extension section is telescopable into and out of this end and can be arrested in a plurality of different telescoped positions.
    • 公开了一种用于防止采矿画廊和其他地下挖掘的洞穴的装置。 它包括一个底座,一个从基座向上延伸的屋顶支撑罩,一个自由边缘,一个屋顶支撑盖枢转到该底座上,一个前进装置使设备朝向和远离挖掘面前进。 推进装置具有可移动的滑架,其可以朝向和远离该表面移动,并且具有朝向后表面的端部,并且延伸部分可伸缩进入和离开该端部并且可以被阻止在多个不同的伸缩位置。
    • 8. 发明授权
    • Mine lining and conveyor combination
    • 矿用衬里和输送机组合
    • US3896626A
    • 1975-07-29
    • US36162373
    • 1973-05-18
    • BOCHUMER EISEN HEINTZMANN
    • SPIES KLAUSNEEFF JOACHIM
    • E21D23/00E21D23/04E21D15/44
    • E21D23/0445E21D23/0039
    • The roof of an underground excavation is supported by a lining, and a conveyor extending along the mine face is reinforced at least in a section facing away from the mine face and supporting at least one cantilever beam and a hydraulic advancement assembly. A floor base of the lining is provided with recesses for guidingly accommodating the cantilever beam in the floor base, so as to permit relative movement of the conveyor and the lining in the direction perpendicular to the mine face, the lining and the conveyor alternately serving as retaining means for each other during the step-wise advancement of the combination.
    • 地下挖掘的屋顶由衬里支撑,并且沿着矿面延伸的输送机至少在远离矿井面的部分中被加强,并支撑至少一个悬臂梁和液压前进组件。 衬里的底座设置有用于将悬臂梁引导地容纳在地板底座中的凹槽,以便允许输送机和衬里沿垂直于矿井的方向相对运动,衬里和输送机交替地作为 在组合的逐步推进期间彼此保持装置。