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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：US4231685A
公开(公告)日：1980-11-04
申请号：US630
申请日：1979-01-02
申请人： Harry Rosenberg , Lubomir Plevak
发明人： Harry Rosenberg , Lubomir Plevak
CPC分类号： E21D23/04 , E21D23/0043
摘要： A roof support unit for use in a mineral mining working has a roof shield supported on a floor sill by means of at least two hydraulic props. A goaf shield is pivotally linked to both the roof shield and the floor sill. At least one of the hydraulic props is inclined towards the face-side of the unit and engages the roof shield. At least one of the hydraulic props is inclined towards the goaf-side of the unit and engages the roof shield.
摘要翻译： 用于矿物开采工作的屋顶支撑单元具有通过至少两个液压道具支撑在底板上的屋顶屏蔽。 一个舷窗盾可枢转地连接到屋顶护罩和底板。 液压支柱中的至少一个朝向单元的正面侧倾斜并与顶盖接合。 至少有一个液压支柱朝向该单元的侧壁倾斜，并与顶盖相接合。
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公开(公告)号：US4187042A
公开(公告)日：1980-02-05
申请号：US945380
申请日：1978-09-25
申请人： Lubomir Plevak , Jurgen Dodt
发明人： Lubomir Plevak , Jurgen Dodt
CPC分类号： E21D23/085 , C02F1/36
摘要： The invention relates to an advance mechanism for a roof support unit to be used in a longwall face of a mineral mining working. The advance mechanism comprises a hydraulic advance ram and guide means constituted by a guide rod means and a guide rail. One end of the guide rod means is attached to a conveyor extending along the longwall face, the other end of the guide rod means being attached to a guide element. The guide rail extends slidably through a guide aperture in the guide element and is pivotally attached to the floor sill of the roof support unit for pivotal movement in a vertical plane perpendicular to the longwall face. The hydraulic advance ram is attached to the guide element and acts on a member fixed to the floor sill.
摘要翻译： 本发明涉及一种用于矿物开采工作的长壁面中的屋顶支撑单元的推进机构。 前进机构包括由导杆装置和导轨构成的液压前进推杆和导向装置。 导杆装置的一端连接到沿着长壁面延伸的传送器，导杆装置的另一端附接到导向元件。 导轨可滑动地延伸穿过引导元件中的引导孔，并且枢转地附接到屋顶支撑单元的底板，用于在垂直于长壁面的垂直平面中枢转运动。 液压前进推杆连接到引导元件上，并作用在固定在地板上的构件上。
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公开(公告)号：US4195953A
公开(公告)日：1980-04-01
申请号：US974462
申请日：1978-12-29
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.
摘要翻译： 本发明涉及一种用于屋顶支撑组件的推进机构，该屋顶支撑组件由沿着例如矿物开采工作的长壁面并排定位的多个屋顶支撑单元构成。 前进机构包括一对液压前进柱塞和一对弹性大致平行的导向杆。 引导杆的一端通过可连接到沿着长壁面延伸的传送器的头部件相互连接。 每个导杆的另一端连接到相应的滑动件上，该滑动件可滑动地引导到附接到屋顶支撑单元的地板梁上的相应的导轨上。 液压前进柱塞各自枢转地附接到滑动件中的一个和所述地板梁中的一个。 引导杆设置成与所述一端相邻，具有向外突出的对准构件，每个构件与所述地板梁中的一个配合，以在其前进期间对齐相关联的屋顶支撑单元。
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公开(公告)号：US4048804A
公开(公告)日：1977-09-20
申请号：US721636
申请日：1976-09-08
CPC分类号： E21D23/0034 , E21D23/0427
摘要： A mine support assembly is composed of separate floor-engaging sills each supporting one or more telescopic props and a goaf shield pivotably connected to a roof cap. The props can be extended or retracted to raise or lower the roof cap. The shield is divided into a common upper section and lower parts each pivotably connected to the upper section and to a respective associated one of the floor sills. Levers are pivotably connected between the sills and the upper section of the goaf shield and serve with the lower shield parts as a guide means ensuring the roof cap is raised or lowered without appreciable horizontal displacement. The floor sills and lower shield parts are respectively spaced apart and a shifting ram is connected to the floor sills via a transverse yoke pivotably connected to the forward end regions of the sills. The ram is located in a space between the sills and is connected at its rear end to a cross piece guided in the sills and connected to bars which extend along the space between the sills to form a cantilever beam connected directly or indirectly to a longwall conveyor.
摘要翻译： 矿井支撑组件由分别支撑一个或多个伸缩道具的单独的地板接合框架和可枢转地连接到屋顶盖的侧壁盾构成。 可以延伸或缩回道具以升高或降低屋顶盖。 屏蔽件被分成共同的上部分和下部，每个下部部分可枢转地连接到上部部分和相应的相关联的一个底板。 杠杆可枢转地连接在门槛和舷墙护罩的上部之间，并与下屏蔽部分一起作为导向装置，确保屋顶帽升高或降低，而没有明显的水平位移。 底板和下屏蔽部件分别间隔开，并且移动式活塞通过可枢转地连接到门槛的前端区域的横向轭连接到地板梁。 柱塞位于门槛之间的空间中，并且在其后端处连接到在门槛中引导的横梁，并连接到沿着门槛之间的空间延伸的杆，以形成直接或间接连接到长壁输送机的悬臂梁 。
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公开(公告)号：US5252006A
公开(公告)日：1993-10-12
申请号：US015136
申请日：1993-02-09
申请人： Lubomir Plevak
发明人： Lubomir Plevak
IPC分类号： E21D23/04
CPC分类号： E21D23/0436
摘要： A mine roof support employs a pair of floor skids carrying hydraulic props on which a roof-engaging structure is mounted. A goaf-shield is pivotably mounted to the roof-engaging structure and is connected with a lever system to the floor skids. A shifting and guide mechanism is disposed between the floor skids and takes the form of an hydraulic ram connected at the rear to a floor rail disposed beneath the ram. The ram is supported at the front end by a bridge member connecting the front ends of the skids together. An hydraulic lifting unit is mounted on the bridge member and when extended the unit bears on the floor rail to partially lift the skids as the shifting ram is operated. The lifting unit can be mounted to the bridge member in one of several alternative height positions. To ensure the lifting unit is always maintained above the lower surface of the bridge member when the lifting unit is retracted a stop piece is mounted beneath the bridge member to effectively provide an extension of the lower surface of the bridge member.
摘要翻译： 矿山屋顶支架采用一对承载液压道具的地板滑板，其上安装有屋顶接合结构。 一个防盗罩可枢转地安装在屋顶接合结构上，并与一个杠杆系统连接到地板滑行板上。 移动和引导机构设置在地板滑行板之间，并且采取在后部连接到设置在压头下方的地板轨道上的液压压头的形式。 柱塞在前端由桥接构件支撑，桥构件将滑行件的前端连接在一起。 液压提升单元安装在桥梁构件上，并且当延伸时，单元承载在地板轨道上，以在移动滑块操作时部分地提升滑板。 提升单元可以在几个替代高度位置中的一个中安装到桥构件。 为了确保提升单元始终保持在桥构件的下表面上方，当提升单元缩回时，止动件安装在桥构件下方以有效地提供桥构件的下表面的延伸。
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公开(公告)号：US4325659A
公开(公告)日：1982-04-20
申请号：US127768
申请日：1980-03-06
申请人： Lubomir Plevak , Walter Weirich
发明人： Lubomir Plevak , Walter Weirich
摘要： A longwall mineral mining installation has a longwall conveyor and a plurality of roof support units positioned side-by-side at the goaf side of the conveyor. The hydraulic appliances of the roof support units, such as their hydraulic props, hydraulic advance rams and hydraulic control valves, are supplied with pressurized hydraulic fluid from hydraulic supply lines which run along the goaf side of the conveyor. A plurality of flat, plate-like intermediate members are provided at the goaf side of the conveyor. These intermediate members are formed with internal ducts for feeding the hydraulic fluid from the supply lines to the hydraulic appliances of the roof support units.
摘要翻译： 长壁矿物开采装置具有长边输送机和多个屋顶支撑单元并排设置在输送机的侧壁处。 屋顶支撑单元的液压装置，例如其液压支柱，液压前进杆和液压控制阀，从沿输送机侧面的液压供应管线供应加压液压流体。 在输送机的侧壁处设置有多个平板状的中间构件。 这些中间构件形成有用于将液压流体从供应管线供给到屋顶支撑单元的液压设备的内部管道。
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公开(公告)号：US4266891A
公开(公告)日：1981-05-12
申请号：US974538
申请日：1978-12-29
申请人： Lubomir Plevak , Jurgen Dodt
发明人： Lubomir Plevak , Jurgen Dodt
CPC分类号： E21D23/0034 , E21D23/04 , F16B5/07 , Y10T403/585 , Y10T403/7045
摘要： A support assembly for a mine working has a floor-sill structure for engaging on the floor of the working and a roof-engaging member or members braced by one or more props against the roof of the working. The floor-sill structure employs one or more slidable skids which can be selectively extended in length at the forward end by fitting an extension component of the same width thereto. The or each skid is recessed to receive rear projections of the associated extension component and securing means, such as spindles or shaped locking elements, are used to secure the extension component to the skid. When the extension component is removed, inserts are located in the recesses of the skid to fill the latter and these inserts can be likewise secured with the same securing means.
摘要翻译： 用于矿井工作的支撑组件具有用于接合在工作台的地板上的地板框架结构以及由一个或多个道具支撑在工作屋顶上的屋顶接合构件或构件。 地板框架结构采用一个或多个可滑动的滑动件，其可以通过将相同宽度的延伸部件配合到其上而在前端选择性地延伸长度。 该或每个滑动件凹入以接收相关联的延伸部件的后突起，并且固定装置，例如主轴或成形的锁定元件，用于将延伸部件固定到滑板。 当延伸部件被移除时，插入件位于滑动件的凹部中以填充滑块，并且这些插入件也可以用相同的固定装置固定。
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公开(公告)号：US5238330A
公开(公告)日：1993-08-24
申请号：US806148
申请日：1991-12-12
申请人： Lubomir Plevak , Gunter Lagodka , Michael Schiller
发明人： Lubomir Plevak , Gunter Lagodka , Michael Schiller
IPC分类号： E21D23/04
CPC分类号： E21D23/0436
摘要： A mine roof support frame has a pair of spaced-apart floor skids on which hydraulic props support a roof engaging structure. A shifting mechanism with a ram in a trough-like housing and a guide beam is positioned between the skids and serves to displace the frame relative to a scraper-chain conveyor and vice versa. The guide beam is a flat plate with a width more or less the same as the space between the skids and rests directly on the floor. The piston rod of the ram is coupled to the guide beam near the conveyor, the ram cylinder is coupled to the housing and the housing is coupled to the skids at the stowage end. The ram housing has a guide rail on the underside which mates with a guide element on the top of the guide beam. Levers pivotably coupled to the floor sills in front of the ram housing are operated by piston and cylinder units to engage on the guide beam to lift the floor skids partially during advancement of the frame.
摘要翻译： 矿顶支撑框架具有一对间隔开的地板滑板，液压道具支撑着屋顶接合结构。 具有槽状壳体中的柱塞和引导梁的移动机构定位在滑板之间，并用于使框架相对于刮板链式输送机移动，反之亦然。 引导梁是一个平板，其宽度或多或少地与滑板之间的空间相同，并且直立在地板上。 柱塞的活塞杆联接到输送机附近的引导梁，柱塞缸联接到壳体，并且壳体在装载端处联接到滑板。 冲头壳体在下侧具有导轨，该导轨与引导梁的顶部上的引导元件配合。 在活塞和气缸单元前面可枢转地联接到底板的杠杆由活塞和气缸单元操作，以在框架的推进期间部分地引导引导梁以提升地板滑行。
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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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