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公开(公告)号：US4140430A
公开(公告)日：1979-02-20
申请号：US898315
申请日：1978-04-19
CPC分类号： E21D23/081 , E21D23/0021
摘要： A walking mine roof support has a roof engaging cap element, two supporting units each including a floor engaging plate member and a prop extending between a respective one of the plate members and the roof supporting cap element so as to support the latter, which floor engaging plate members are displaceable in a first direction toward a mine face and are spaced from one another in a second direction transverse to the first direction, and displacing elements for displacing the floor engaging plate members in the first direction and including two guiding elements spaced from one another in the second direction and two hydraulic cylinder-piston units operative independently of one another. Each of the hydraulic cylinder-piston units connects one of the guiding elements with a respective one of the floor engaging plate members so as to displace the latter relative to but independently of one another in the first direction.
摘要翻译： 行走的矿顶屋顶支架具有屋顶接合帽元件，两个支撑单元，每个支撑单元包括地板接合板构件和在相应的一个板构件和顶盖支撑帽元件之间延伸的支柱，以支撑该座构件，该地板接合 板构件可沿着第一方向朝向矿面移动，并且在与第一方向相交的第二方向上彼此间隔开，并且用于使地板接合板构件沿第一方向移位的移动元件，并且包括两个与一个间隔开的引导元件 另一个在第二方向上，两个液压缸 - 活塞单元彼此独立地操作。 每个液压缸 - 活塞单元将一个引导元件与相应的一个地板接合板构件相连接，以便在第一方向上相对于彼此相对而相互独立地移动。
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公开(公告)号：US4094155A
公开(公告)日：1978-06-13
申请号：US760949
申请日：1977-01-21
CPC分类号： E21D23/04 , E21D23/0034
摘要： A mine roof support for an underground mine gallery comprises a sole plate adapted to rest on the floor of the mine gallery. The sole plate is connected by links to the region of the lower end of a rear shield, and the upper end of the latter is connected by pivot means to a roof shield, between opposite ends of the latter, in such a manner that a portion of the roof shield between the front end thereof and the pivoted means is considerably longer than the portion of the roof shield between the pivot means and the rear end of the roof shield. At least one extensible and collapsible prop extends between the sole plate and the portion of the roof shield which is located forwardly of the pivot means and at least one additional prop extends between the sole plate and the rear shield, so that the roof shield may be pressed against the roof of the mine gallery and be shifted relative to the mine face.
摘要翻译： 用于地下矿场的矿山屋顶支架包括一个适合放置在矿场的地板上的底板。 底板通过连杆连接到后屏蔽件的下端的区域，并且后板的上端通过枢转装置连接到顶盖的后端的相对端之间，使得一部分 在其前端和枢转装置之间的屋顶护罩的距离远大于在枢转装置和屋顶护罩的后端之间的屋顶护罩的部分。 至少一个可延伸和可折叠的支架在底板和位于枢转装置前方的屋顶护罩的部分之间延伸，并且至少一个附加支柱在底板和后挡板之间延伸，使得屋顶护罩可以 压在矿场的屋顶上，相对于矿井转移。
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公开(公告)号：US4028898A
公开(公告)日：1977-06-14
申请号：US685163
申请日：1976-05-11
CPC分类号： E21D23/0034 , E21D23/081
摘要： A pit prop assembly has two pit props with parallel laterally spaced bases each having a front end turned toward a face conveyor and a rear end turned away from the face conveyor. A slide has its front end connected via positioning mechanism to the conveyor and its rear end connected via hydraulic ram to the bases. Each of the bases has at its rear end a side turned toward a confronting side on the slide and forming a side pair with this confronting side. One of these sides is formed with a formation that engages over and under another formation on the other side. One of these formations of each of the pairs of formations extends longitudinally toward the face so that the two formations can slide relative to each other. One of these formations may also be a pin whereas the other is a groove, or one may be a pair of facing convex surfaces flanking a straight edge.
摘要翻译： 凹坑支座组件具有两个具有平行的横向间隔的基座的凹坑道具，每个底座的前端朝着面传送器转动，后端从面传送器转过。 滑块的前端通过定位机构连接到输送机，其后端通过液压压头连接到基座。 每个基座在其后端具有朝向滑块上的相对侧的一侧，并且与该相对侧形成侧对。 这些侧面中的一个形成有在另一侧上接合另一结构的结构。 每对地层中的每一层的这些构造中的一个纵向延伸朝向该表面，使得两个岩层可相对于彼此滑动。 这些结构中的一个也可以是针，而另一个是凹槽，或者可以是在直边缘侧面的一对相对的凸形表面。
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4.发明授权Arrangement for supervising synchronous displacement of the pistons of two cylinder-and-piston units 失效用于监督两个气缸和活塞单元的活塞的同步位移的布置
公开(公告)号：US4657443A
公开(公告)日：1987-04-14
申请号：US838555
申请日：1986-03-11
申请人： Gunter Blumenthal
发明人： Gunter Blumenthal
CPC分类号： E21D23/26
摘要： An arrangement for supervising and controlling synchronous displacement of respective pistons of two cylinder-and-piston units, especially of an advancement and a roof cap displacement unit of a roof support assembly for use in underground mining, comprises first and second conduit systems each having two branches each connected with one of the piston and annular spaces of a different one of the units; a switching valve interposed between pressure and a return conduits and the first and second conduit systems; and first and second shut-off valves respectively interposed in those of the branches of the first and second conduit systems which lead to the piston spaces. Measurement devices measure the extent of displacement of each of the pistons, and a control and regulating arrangement determines from the outputs of the measurement devices which of the piston leads the other and causes that of the first and second shut-off valves which is associated with the leading piston to temporarily close and thus discontinue the action of the pressure differential on the leading piston until synchronism in the displacement of the two pistons is restored.
摘要翻译： 用于监测和控制两个气缸和活塞单元，特别是用于地下采矿的屋顶支撑组件的前进和顶盖位移单元的各个活塞的同步位移的装置包括第一和第二管道系统，每个具有两个 每个与各个单元的活塞和环形空间中的一个连接的分支; 介于压力和回流管道之间的切换阀以及第一和第二管道系统; 以及分别插入通向活塞空间的第一和第二导管系统的分支中的第一和第二截止阀。 测量装置测量每个活塞的位移程度，并且控制和调节装置根据测量装置的输出确定活塞引导另一个活塞的哪一个并导致与第二和第二截止阀相关联的第一和第二截止阀的输出 引导活塞临时关闭，从而中止了前导活塞上的压力差的作用，直到两个活塞的位移同步恢复。
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公开(公告)号：US4798417A
公开(公告)日：1989-01-17
申请号：US96678
申请日：1987-09-14
CPC分类号： E21D23/063
摘要： A method in underground coal mining for separating the upper coal of the seam from the roof during the advancement of the upper sliding cap of a support frame, wherein the front edge of the cap is forced in a plane of the cap between the upper coal to be separated and the rock from which the coal is to be separated. During the advancement of the sliding cap, the sliding cap is alternatingly moved backwardly and forwardly, so that the from edge of the sliding cap separates the upper coal during its forward movement. Alternatively or additionally, when the front edge of the sliding cap contacts the upper coal, alternatingly higher and lower pressure can be admitted to the sliding cap in order to obtain a shaking effect. In this combined method, the sliding cap is advanced, the shaking procedure is carried out as the front edge contacts the upper coal, and the sliding cap is subsequently moved backwardly. The cycle is then repeated several times.
摘要翻译： 一种地下采煤方法，用于在支撑框架的上滑动盖的前进过程中将接缝的上部煤层与屋顶分离，其中，盖的前边缘被迫在盖的平面中，在上煤到 与煤分离的岩石。 在滑盖的推进过程中，滑动盖向后和向前交替地移动，使得滑动盖的边缘在其向上运动期间分离上部煤。 或者或另外，当滑盖的前边缘接触上煤时，为了获得振动效果，可以向滑盖接收更高和更低的压力。 在这种组合方法中，滑动盖先进，当前边缘接触上部煤时，摇动过程被执行，滑动盖随后向后移动。 然后重复该循环数次。
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6.发明授权
公开(公告)号：US4280734A
公开(公告)日：1981-07-28
申请号：US99738
申请日：1979-12-03
申请人： Gunter Blumenthal , Alfred Bollmann
发明人： Gunter Blumenthal , Alfred Bollmann
CPC分类号： E21C35/125
摘要： An arrangement for controlled engagement of the tools of a coal planer, with a mine face comprises a scraper conveyor, provided on its front face directed toward the mine face with a guide rail guiding the coal planer for reciprocation along the mine face and a mechanism for tilting the conveyor and the coal planer about a substantially horizontal axis. The tilting mechanism is connected to the rear face of the conveyor and extends in its entirety rearwardly of the rear face of the latter. The tilting mechanism comprises a guide linkage pivotally connected at its front end to the rear face of the scraper conveyor while its rear end portion forms a housing for a fluid operated cylinder and piston unit, the piston rod of which is connected to a connecting rod guided by the guide linkage for movement in longitudinal direction and having an upwardly extending front section pivotally connected at its upper free end to the rear face of the scraper conveyor. The fluid operated cylinder-and-piston unit is thus considerably spaced from the scraper conveyor and the material transported thereby and especially coal dust raised during transport of the mined coal by the conveyor, whereby maintenance of the tilting unit is reduced. The guide linkage, the connecting rod and the tilting unit are all in close vicinity to the sole of the mine gallery to leave a considerable free space between the arrangement and the roof of the mine gallery.
摘要翻译： 一种用于与煤矿面对的煤刨床的工具的受控接合的装置包括刮刀输送机，其设在其面向矿井面的前表面上，该导向轨道具有引导煤刨床沿着矿井往复运动的导轨，以及用于 围绕基本上水平的轴线倾斜输送机和煤刨床。 倾斜机构连接到输送机的后表面，并且整个后部的后表面向后延伸。 倾斜机构包括在其前端枢转地连接到刮板输送机的后表面的引导连杆，而其后端部形成用于流体操作的气缸和活塞单元的壳体，其活塞杆连接到连杆 通过用于沿纵向移动的引导连杆，并具有向上延伸的前部，其在其上自由端枢转地连接到刮板输送机的后表面。 因此，流体操作的气缸和活塞单元与刮板输送机和由此输送的材料相当地间隔开，并且特别是在通过输送机运输开采煤期间煤尘升高，从而降低了倾斜单元的维护。 导向联动装置，连杆和倾斜装置都靠近矿井的底部，在矿井的安排和屋顶之间留下相当的自由空间。
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公开(公告)号：US4008578A
公开(公告)日：1977-02-22
申请号：US685162
申请日：1976-05-11
申请人： Gunter Blumenthal , Peter Marr
发明人： Gunter Blumenthal , Peter Marr
CPC分类号： E21D23/0409 , E21D23/10
摘要： A pit prop assembly for use in a mine having a floor, a roof, and a face, comprises a pair of pit props having parallel elongated floor-engaging bases on each of which is pivoted a roof-engaging arm which may be pressed against the roof by means of a hydraulic ram extending vertically between each base and the respective arm. A pair of telescoping elements extend longitudinally between these two bases and one of the elements is pivoted at its front and rear end on respective front and rear end of one of the bases and the other element pivoted at its front and rear end on the respective front and rear end of the other base. A longitudinal-displacement ram is provided between these telescoping elements so that the two pit props can be displaced longitudinally relative to each other. In addition a transverse ram forms the connection between the rear of one of the elements and the corresponding rear of the corresponding base so that transverse displacement or swiveling of the two pit props is also possible.
摘要翻译： 用于具有地板，屋顶和面部的矿井中的坑道支架组件包括一对具有平行的细长地板接合基座的坑道，其中每个坑道可枢转，顶盖接合臂可压靠 通过在每个基座和相应的臂之间垂直延伸的液压柱塞来顶板。 一对伸缩元件在这两个基座之间纵向延伸，并且其中一个元件在其前端和后端在其中一个基座的相应前后端枢转，另一个元件在其前后端在相应的前端 和另一个底座的后端。 在这些伸缩元件之间设置有纵向位移拉杆，使得两个凹坑道具可相对于彼此纵向移位。 此外，横向拉杆形成了一个元件的后部和相应基座的相应后部之间的连接，使得两个凹坑道具的横向移位或旋转也是可能的。
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公开(公告)号：US3959976A
公开(公告)日：1976-06-01
申请号：US543369
申请日：1975-01-23
申请人： Gunter Blumenthal
发明人： Gunter Blumenthal
CPC分类号： E21D23/0427
摘要： A base has one side facing towards and another side facing away from the face of the excavation. A shield has a first end portion and a second end portion, the latter being adjacent the other side and the shield extending upwardly and towards the one side. A roof-support cap is mounted on the first end portion. A mounting arrangement includes a shaft and mounts the second end portion of the shield on the base for pivoting about a pivot axis. A displacing arrangement serves to selectively displace the pivot axis in direction towards and away from the one side of the base, so as to maintain the cap in engagement with the roof despite different heights of the latter.
摘要翻译： 基座的一侧朝向另一侧，背向挖掘面的另一侧。 屏蔽件具有第一端部部分和第二端部部分，后端部分与另一侧相邻，并且屏蔽件向上并朝向一侧延伸。 屋顶支撑帽安装在第一端部上。 安装装置包括轴，并将屏蔽件的第二端部安装在基座上，用于围绕枢转轴线枢转。 位移装置用于在朝向和远离基座的一侧的方向上选择性地移动枢转轴线，以便尽管后者的不同高度来保持盖与屋顶接合。
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公开(公告)号：US4094154A
公开(公告)日：1978-06-13
申请号：US748912
申请日：1976-12-09
申请人： Gunter Blumenthal , Karlheinz Bohnes , Peter Marr
发明人： Gunter Blumenthal , Karlheinz Bohnes , Peter Marr
CPC分类号： E21D23/0091
摘要： In longwall mining wherein a mine roof is normally supported by a succession of arches each in turn supported at one mine wall on a respective leg, a plurality of vertically expensible holders are pressed up against a plurality of respective adjacent arches with a common first beam, and legs of the thus-supported arches are removed so that the mine wall can be worked at this location. For advancing along the longwall all of the holders except the holder at one end of the row of holders are pressed upwardly against the respective arches with a second beam. The leg of the arch of the end holder is replaced and then the first beam is dropped down away from the row of holders. The end holder is then displaced to the opposite end of the row and the first beam is advanced toward this other end and the end holder is positioned under the arch immediately adjacent the other end. Then all of these holders including the end holder are pressed upwardly by the first beam against the respective arches and the second beam is dropped downward and displaced toward the other end. The leg of the newly supported arch can then be removed and the mine wall can be worked where this leg has been removed. Each of these beams is vertically displaceable relative to a lower beam by means of hydraulic cylinders and further hydraulic cylinders interconnect the lower beams for longitudinal stepping of the entire assembly.
摘要翻译： 在长壁采矿中，其中矿顶通常由一系列拱形支撑，每个拱顶依次在相应的支脚上的一个矿井壁上支撑，多个垂直方向的支撑件被压靠在多个相应的相邻弓形拱顶上，共同的第一梁， 并且这样支撑的拱门的腿被移除，使得矿井可以在该位置被加工。 为了沿着长墙推进，除了保持架的一端的保持器之外的所有保持器的所有保持器都用第二梁向上压靠在相应的拱顶上。 更换端部支架的拱形腿，然后将第一个梁从支撑架上排下。 然后，端部保持器移动到行的相对端，并且第一梁朝向另一端前进，并且端部保持器定位在紧邻另一端的拱下。 然后，包括端部保持器的所有这些保持器被第一梁向上压靠在相应的拱顶上，并且第二梁向下落下并朝向另一端移位。 然后可以移除新支撑的拱的腿，并且可以在该腿被移除的地方工作矿井。 这些梁中的每一个通过液压缸相对于下梁垂直移动，并且另外的液压缸将下梁互连以便整个组件的纵向步进。
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公开(公告)号：US3961487A
公开(公告)日：1976-06-08
申请号：US618212
申请日：1975-09-30
申请人： Gunter Blumenthal
发明人： Gunter Blumenthal
CPC分类号： E21D23/0034 , E21D23/0436
摘要： A mine roof support has at least two elongated support members laterally adjacent one another and extending transverse to the mine face. Each of the support members has an underside, a first end portion facing towards and a second end portion facing away from the mine face. A shield arrangement is mounted on the second end portions and extends upwardly thereof for supporting the mine roof. An extension arrangement is connectable to the first end portions of the support members with limited freedom of pivoting movement in vertical direction, and includes a ground plate extending to all of the support members and inclined relative to the undersides thereof, and terminal portions which rise upwardly towards the mine face in the region of the free ends of the first end portions of the support members.
摘要翻译： 矿顶支撑件具有至少两个细长的支撑构件，其横向相邻并且横向于矿井面延伸。 每个支撑构件具有下侧，面向第一端部和面向远离矿面的第二端部。 屏蔽装置安装在第二端部上并向上延伸以支撑矿顶。 延伸装置可连接到支撑构件的第一端部，并且具有在垂直方向上枢转运动的有限自由度，并且包括延伸到所有支撑构件并相对于其下侧倾斜的接地板，以及向上升起的端子部分 在支撑构件的第一端部的自由端的区域中的矿面。
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