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公开(公告)号：US4401399A
公开(公告)日：1983-08-30
申请号：US278034
申请日：1981-06-29
申请人： Kunibert Becker , Burckhard Elsner , Gerd Dunkel
发明人： Kunibert Becker , Burckhard Elsner , Gerd Dunkel
CPC分类号： E21D23/0039 , E21D23/081
摘要： A mine roof support unit is constituted by two detachably connected parts. Each of the parts has a floor girder which supports a roof bar by means of a hydraulic prop. The roof support unit is intended for use at the lower end of an inclined longwall working which meets its access gallery at an angle other than 90.degree.. The detachability of the two parts enables one of these parts to be removed from the working as its face is advanced. The removed part can then be transported to the other end of the working. Each of the parts is provided with means for detachably connecting an advance mechanism.
摘要翻译： 矿山屋顶支撑单元由两个可拆卸地连接的部分构成。 每个部件都有一个通过液压支柱支撑顶板的地板梁。 屋顶支撑单元用于倾斜长墙工作的下端，以与90°以外的角度相接， 两个部件的可拆卸性使得这些部件中的一个可以随着其前进而从工作中移除。 被拆卸的部件然后可以运输到工作的另一端。 每个部件设置有用于可拆卸地连接提前机构的装置。
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公开(公告)号：US4307981A
公开(公告)日：1981-12-29
申请号：US145982
申请日：1980-05-02
申请人： Walter Weirich , Harry Rosenberg , Kunibert Becker
发明人： Walter Weirich , Harry Rosenberg , Kunibert Becker
CPC分类号： E21D23/0043 , E21D23/063 , E21D23/16
摘要： A longwall mineral mining installation has a conveyor and a plurality of roof support units positioned side-by-side on the goaf side of the conveyor. Each roof support unit has a roof shield having an advanceable shield extension. Each unit has a first hydraulic ram for extending its shield extension, and a second hydraulic ram for advancing the conveyor. The extension of each first ram is controlled in dependence upon the retraction of one of the second rams (either the second ram of the same unit or that of an adjacent unit). This control is effected by controlling the supply of pressurized hydraulic fluid to the first rams. In one embodiment this is carried out by a control valve which has a spring-loaded plunger which engages with a series of equispaced cams on the movable cylinder of the associated second ram. In another embodiment, the piston rods of the rams are provided with series of equispaced magnets. The cylinders of the rams are provided with sensors, which sense the magnets and generate control signals. A control box is provided to direct the control signals to control valves associated with the rams, so that the first rams are extended by the same distance as that through which the second rams are retracted.
摘要翻译： 长壁矿物开采设备具有输送机和多个屋顶支撑单元并排设置在输送机的侧壁上。 每个屋顶支撑单元具有具有可推进的屏蔽延伸部的屋顶屏蔽。 每个单元具有用于延伸其屏蔽延伸部的第一液压柱塞和用于推进输送机的第二液压柱塞。 每个第一柱塞的延伸根据第二个柱塞中的一个（相同单元的第二柱塞或相邻单元的第二柱塞）的缩回来控制。 该控制通过控制向第一公柱供应加压液压流体来实现。 在一个实施例中，该控制阀由具有弹簧加载柱塞的控制阀进行，弹簧加载柱塞与相关联的第二压头的可移动圆柱体上的一系列等间隔的凸轮啮合。 在另一个实施例中，柱塞的活塞杆设置有一系列等间隔的磁体。 传感器的气缸设有传感器，感测磁体并产生控制信号。 提供控制箱以将控制信号引导到与公柱相关联的控制阀，使得第一公柱延伸与第二公柱缩回相同的距离。
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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：US5105936A
公开(公告)日：1992-04-21
申请号：US625109
申请日：1990-12-10
申请人： Horst Stapper , Kunibert Becker
发明人： Horst Stapper , Kunibert Becker
摘要： Chain-drum drive or guidance mechanism in a machine frame of a chain-scraper conveyor, has a shaft (6) of its chain-drum (5), outer bearing parts (8) receiving shaft bearings (7), as well as sealing elements (24, 25) for sealing gaps between the outer bearing parts and the chain drum, all combined in a pre-assembled unit (12), which is fitted into, and removed from the machine frame (1) as a whole. The unit (12) is secured in the machine frame (1) preferably by clamp connections, in particular hydraulic annular clamps (31) or the like, which are seated in the openings (11) of the machine frame side walls (2, 3).
摘要翻译： 在链式刮板输送机的机架中的链鼓驱动或引导机构具有其链鼓（5）的轴（6），承载轴承（7）的外轴承部（8）以及密封 用于密封外部轴承部分和链轮之间的间隙的元件（24,25），全部组合在预组装单元（12）中，该预组装单元（12）整体上装配到机架（1）中并从机架（1）移除。 优选地，通过夹持在机架侧壁（2,3）的开口（11）中的夹紧连接件，特别是液压环形夹具（31）等固定在机架（1）中的单元（12） ）。
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公开(公告)号：US4427321A
公开(公告)日：1984-01-24
申请号：US305977
申请日：1981-09-28
申请人： Walter Weirich , Harry Rosenberg , Kunibert Becker
发明人： Walter Weirich , Harry Rosenberg , Kunibert Becker
CPC分类号： E21D23/0043 , E21D23/063 , E21D23/16
摘要： A longwall mineral mining installation has a conveyor and a plurality of roof support units positioned side-by-side on the goaf side of the conveyor. Each roof support unit has a roof shield having an advanceable shield extension. Each unit has a first hydraulic ram for extending its shield extension, and a second hydraulic ram for advancing the conveyor. The extension of each first ram is controlled in dependence upon the retraction of one of the second rams (either the second ram of the same unit or that of an adjacent unit). This control is effected by controlling the supply of pressurized hydraulic fluid to the first rams. In one embodiment this is carried out by a control valve which has a spring-loaded plunger which engages with a series of equispaced cams on the movable cylinder of the associated second ram. In another embodiment, the piston rods of the rams are provided with series of equispaced magnets. The cylinders of the rams are provided with sensors, which sense the magnets and generate control signals. A control box is provided to direct the control signals to control valves associated with the rams, so that the first rams are extended by the same distance as that through which the second rams are retracted.
摘要翻译： 长壁矿物开采设备具有输送机和多个屋顶支撑单元并排设置在输送机的侧壁上。 每个屋顶支撑单元具有具有可推进的屏蔽延伸部的屋顶屏蔽。 每个单元具有用于延伸其屏蔽延伸部的第一液压柱塞和用于推进输送机的第二液压柱塞。 每个第一柱塞的延伸根据第二个柱塞中的一个（相同单元的第二柱塞或相邻单元的第二柱塞）的缩回来控制。 该控制通过控制向第一公柱供应加压液压流体来实现。 在一个实施例中，该控制阀由具有弹簧加载柱塞的控制阀进行，弹簧加载柱塞与相关联的第二压头的可移动圆柱体上的一系列等间隔的凸轮啮合。 在另一个实施例中，柱塞的活塞杆设置有一系列等间隔的磁体。 传感器的气缸设有传感器，感测磁体并产生控制信号。 提供控制箱以将控制信号引导到与公柱相关联的控制阀，使得第一公柱延伸与第二公柱缩回相同的距离。
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公开(公告)号：USRE31346E
公开(公告)日：1983-08-16
申请号：US270721
申请日：1981-06-05
申请人： Kunibert Becker , Willy Heyer , Lubomir Plevak , Jurgen Dodt
发明人： Kunibert Becker , Willy Heyer , Lubomir Plevak , Jurgen Dodt
CPC分类号： E21D23/085 , E21D23/0034 , E21D23/0409
摘要： The invention relates to an advance mechanism for a roof support assembly constituted by a plurality of roof support units positioned side-by-side along, for example, a longwall face of a mineral mining working. The advance mechanism comprises a pair of hydraulic advance rams and a pair of resilient, generally parallel guide rods. The guide rods are interconnected at one end by means of a head-piece which is attachable to a conveyor extending along the longwall face. The other end of each guide rod is attached to a respective slide piece which is slidably guided on a respective guide rail which is attached to a floor girder of a roof support unit. The hydraulic advance rams are each pivotally attached to one of the slide pieces and to one of said floor girders. The guide rods are provided, adjacent said one end, with outwardly projecting alignment members each of which co-operates with one of said floor girders to align an associated roof support unit during its advance.
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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：US4518284A
公开(公告)日：1985-05-21
申请号：US480614
申请日：1983-03-30
IPC分类号： E21D23/04
CPC分类号： E21D23/0454 , E21D23/0427 , E21D23/0481
摘要： A mine roof support has a goaf shield with a lemniscate guide system linking the shield to floor-engaging skids. A walking-mechanism is disposed in a channel between the floor skids. In order to prevent rubble or goaf material from penetrating into the channel the guides of the lemniscate system have connections which are spaced one above the other and to which one or several screen plates can be removably and replaceably attached with the aid of push-in locking-bars. The screen plates also advantageously serve to keep the floor skids apart by a minimum distance to prevent jamming of the walking mechanism.
摘要翻译： 矿山屋顶支架有一个防盗罩，带有一个完整的导向系统，将防护罩与地板接合的滑轨相连接。 行走机构设置在地板滑行板之间的通道中。 为了防止瓦砾或af材料渗透到通道中，精密系统的引导件具有彼此间隔开的连接，并且借助于推入锁定可以可拆卸地和可替换地附接一个或多个筛板 - 筛板还有利地用于将地板滑行物保持最小距离，以防止行走机构的卡住。
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公开(公告)号：US4402634A
公开(公告)日：1983-09-06
申请号：US270505
申请日：1981-06-04
摘要： A mineral mining installation comprises a longwall conveyor, and a plurality of roof support units positioned side-by-side along the goaf side of the conveyor. The roof support units are positioned to define an access area between the conveyor and the roof support units. A plurality of hydraulic bracing rams act on the conveyor to brace the conveyor longitudinally. Each of the bracing rams is pivotally attached to a floor sill of a respective roof support unit. The hydraulic bracing rams are positioned at the goaf-side edge portion of the access area. The bracing forces are transmitted from the bracing rams to the conveyor via respective transverse arms attached to the bracing rams and to the conveyor.
摘要翻译： 一种矿物开采装置包括长壁输送机和沿着输送机的侧壁侧并排定位的多个屋顶支撑单元。 定位屋顶支撑单元以限定输送机和屋顶支撑单元之间的通道区域。 多个液压支撑杆作用在输送机上以纵向地支撑输送机。 每个支撑柱塞枢转地连接到相应屋顶支撑单元的底板。 液压支撑柱定位在通道区域的侧面边缘部分。 支撑力通过连接到支撑柱塞和输送机上的相应横向臂从支撑柱塞传递到输送机。
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公开(公告)号：US4391181A
公开(公告)日：1983-07-05
申请号：US207507
申请日：1980-11-17
摘要： A hydraulic control system, particularly for controlling the operation of roof support props of a mine working, employs control devices operated manually to feed pressure fluid to the working chambers of the props to effect extension or retraction thereof. A two-state valve device is operated when the props are extended to ensure that the correct setting pressure is established. This valve device has a control piston which is actuated to cause the device to establish independent connection between the main fluid pressure line and the associated working chambers of the props charged with fluid by the initial operation of the control devices. The connection established by the valve device is maintained even if the control devices break connection between the chambers and the pressure line. When the correct setting pressure is reached, a further control piston of the valve device is actuated to break the connection established by the valve device ready for the next operative cycle.
摘要翻译： 特别是用于控制矿山作业的屋顶支撑道具的操作的液压控制系统使用手动操作的控制装置将压力流体供给到道具的工作室以实现其延伸或缩回。 当道具伸展时，操作双态阀装置，以确保建立正确的设定压力。 该阀装置具有控制活塞，该控制活塞被致动以使装置通过控制装置的初始操作在主流体压力管线和充满流体的道具的相关联的工作室之间建立独立的连接。 即使控制装置断开室和压力管线之间的连接，也保持由阀装置建立的连接。 当达到正确的设定压力时，阀装置的另一控制活塞被致动以打破由阀装置建立的连接准备下一个操作循环。
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