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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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2.发明授权
公开(公告)号：US4099785A
公开(公告)日：1978-07-11
申请号：US693114
申请日：1976-06-04
CPC分类号： E21D23/06 , E21C35/00 , E21D19/02 , E21D23/0026
摘要： The roof of an underground mine working which is newly exposed by a mining machine passing along a face of the working is supported by applying a flexible mat to the roof and underpinning the mat by self-advancing roof supports. A supply of mat is stored in a region which is already supported by the roof supports, is fed from the store in a first direction, and turned through a right-angle to extend along the newly exposed face. The device which turns the mat and applies it to the roof may have its vertical position controlled in accordance with the vertical position of a cutting cylinder of the mining machine.
摘要翻译： 由穿过工作面的采矿机新露出的地下矿井的屋顶通过将柔性垫施加到屋顶并通过自行推进的屋顶支撑来支撑垫来支撑。 垫子的供给被存储在已经被屋顶支撑件支撑的区域中，从第一方向从商店进给，并且通过直角旋转以沿着新露出的面延伸。 转动垫子并将其施加到屋顶的装置可以根据采矿机的切割圆筒的垂直位置来控制其垂直位置。
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公开(公告)号：US4073151A
公开(公告)日：1978-02-14
申请号：US761727
申请日：1977-01-24
申请人： Gunter Harmsma
发明人： Gunter Harmsma
CPC分类号： E21D23/0409 , E21D23/0026
摘要： A mine roof support assembly comprises a pair of adjacent mine roof support units and apparatus for guiding and aligning these units. Each of the units has a floor sill and telescopic props for bracing against the roof of a mine excavation. Shifting ram means are provided for displacing the units in the direction in which the working face advances. The guiding and aligning apparatus comprises two telescopic guide rods which are pivotally connected to the units. Each guide rod is constituted by a springless, non-hydraulic piston-and-cylinder device. The two guide rods are inclined at an acute angle to one another in such a way that, when the units are positioned side-by-side, one of the guide rods is completely retracted and its axis is perpendicular to the direction in which the units are displaced, and, when one of the units has been displaced by the shifting ram means relative to the other unit, the other guide rod is completely retracted.
摘要翻译： 矿顶支撑组件包括一对相邻的矿顶支撑单元和用于引导和对准这些单元的装置。 每个单元都有一个底板和伸缩道具，用于支撑矿山开挖的屋顶。 提供了移动压头装置，用于沿着工作面前进的方向移动单元。 引导和对准装置包括两个可枢转地连接到这些单元的伸缩导杆。 每个导杆由无弹簧非液压活塞和气缸装置构成。 两个导向杆以彼此成锐角的方式倾斜，使得当单元并排定位时，一个导杆完全缩回，并且其轴线垂直于单元 并且当其中一个单元相对于另一个单元已被移位滑块装置移位时，另一个导杆完全缩回。
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公开(公告)号：US3490243A
公开(公告)日：1970-01-20
申请号：US3490243D
申请日：1967-11-14
CPC分类号： E21D23/0409 , E21D23/0026 , E21D23/0069
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