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公开(公告)号：US5190414A
公开(公告)日：1993-03-02
申请号：US863562
申请日：1992-04-03
IPC分类号： E21D23/04
CPC分类号： E21D23/0436
摘要： A walking mining prop has a skid-lifting assembly in the region of the ram which braces the roof cap with respect to the skid formed by a bridge from which lifting cylinders are articulated and suspended. The pistons of these lifting cylinders are articulated to a pressure plate which at least partly surrounds the guide rods of a guide-rod assembly on which the skid is guided, a mechanism being provided to advance the skid relative to the guide-rod assembly.
摘要翻译： 行走采矿道具有在冲压区域内的滑行提升组件，其相对于由起重缸铰接和悬挂的桥形成的滑道支撑屋顶盖。 这些提升缸的活塞铰接到压板，压板至少部分地围绕引导杆组件的引导杆，导向杆组件的导向杆被引导到其上，设置有用于使滑动件相对于导杆组件前进的机构。
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公开(公告)号：US4755083A
公开(公告)日：1988-07-05
申请号：US928326
申请日：1986-11-06
CPC分类号： E21D23/066
摘要： An adustable cap unit for a mine support frame including a main cap, an adjustable cap connected to the main cap with a hinge-type connection, an adjusting cylinder mechanism extending within the widths of the main cap and the adjustable cap, and a guide for guiding a portion of the adjusting cylinder mechanism in a restrictive manner. The adjusting cylinder mechanism is provided either in the main cap or in the adjustable cap and an end portion of the adjusting cylinder mechanism is hinged to a bearing member provided at the bottom edges of the main cap or the adjustable cap adjacent the hinge-type connection. The adjustable cap unit can be used in extremely small seam thicknesses of as little as approximately 500 mm, while the contact pressure available at the front end of the adjustable cap is sufficient.
摘要翻译： 一种用于矿井支撑框架的防潮盖单元，包括主盖，连接到具有铰链式连接的主盖的可调节盖，在主盖和可调节盖的宽度内延伸的调节气缸机构，以及用于 以限制性方式引导调节气缸机构的一部分。 调节气缸机构设置在主帽或可调节盖中，并且调节气缸机构的端部铰接到设置在主盖的底部边缘处的轴承构件或邻近铰链式连接的可调节盖 。 可调节的盖单元可以以非常小的约500毫米的接缝厚度使用，而可调节盖的前端可用的接触压力就足够了。
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公开(公告)号：US4487531A
公开(公告)日：1984-12-11
申请号：US433807
申请日：1982-10-08
CPC分类号： E21D23/086
摘要： A trough-shaped travelling bracket of a retracting and guiding arrangement of a mine roof support has fixing elements at its mine-face end for releasably coupling with an abutment, wherein the fixing elements are exchangeable, but fixedly connectable with a web of the travelling bracket.
摘要翻译： 矿顶支撑件的缩回和引导装置的槽形行进支架在其矿井端具有固定元件，用于与支座可释放地联接，其中固定元件是可更换的，但可与行走支架的腹板固定连接 。
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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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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：US4065931A
公开(公告)日：1978-01-03
申请号：US794933
申请日：1977-05-09
申请人： Gustav Neu , Hans-Ferdinand Bemmerl
发明人： Gustav Neu , Hans-Ferdinand Bemmerl
CPC分类号： E21D23/081 , E21D23/0021 , E21D23/04
摘要： An underground excavating system includes a conveyor device which is operative for conveying material away from a mine face, and an excavation roof support device which is operative for supporting the roof of the excavation. A hydraulic cylinder-piston unit is operatively connected to both of the devices and is operative for advancing one of the devices towards the mine face while the other of the devices remains stationary, and vice versa. A guiding arrangement is connected intermediate the control unit and the conveyor device and is operative for guiding the advancing device during its advance towards the mine face. The guiding arrangement includes a pair of elongated support members which are spaced apart of each other and which have one end region located closer to the mine face and another end region located further from the mine face. The guide arrangement further includes a pair of guide sleeve members one at each of the aforementioned end regions. Each sleeve member has wall portions which bound a passage through which the end portions of the support members pass at a spacing relative to each other. The arrangement further includes a pair of insert members respectively connectable to the conveyor device and the control unit. Each insert member is located in a respective passage of the sleeve members and is received between the end portions of the support members for maintaining these end portions at the aforementioned spacing. The insert members and the support members are detachably connected to the sleeve members so as to permit rapid interchange of any of the members which are defective with a replacement member.
摘要翻译： 一种地下挖掘系统，其特征在于，包括：输送装置，用于输送材料远离矿面;以及挖掘屋顶支撑装置，其可操作用于支撑挖掘屋顶。 液压缸 - 活塞单元可操作地连接到这两个装置，并且可操作地将装置中的一个推进到矿井面，而另一个装置保持静止，反之亦然。 引导装置连接在控制单元和传送装置之间，并且可操作用于在推进装置向矿井面前进时引导。 引导装置包括彼此间隔开的一对细长的支撑构件，并且具有位于更靠近矿面的一个端部区域和位于更远离矿井面的另一端部区域。 引导装置还包括一对引导套筒构件，每个引导套筒构件在每个前述端部区域处一个。 每个套筒构件具有壁部分，该壁部分限定了一个通道，支撑构件的端部通过该通道以相对于彼此的间隔通过。 该装置还包括分别可连接到输送装置和控制单元的一对插入件。 每个插入构件位于套筒构件的相应通道中，并且被容纳在支撑构件的端部之间，用于将这些端部保持在上述间隔。 插入构件和支撑构件可拆卸地连接到套筒构件，以便允许与更换构件有缺陷的任何构件的快速交换。
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公开(公告)号：US4309130A
公开(公告)日：1982-01-05
申请号：US156213
申请日：1980-06-03
CPC分类号： E21D23/0409
摘要： A mine roof support has two sole-sliding elements, a bridge element connecting the sole-sliding elements with one another at the mine face ends of the latter, a roof supporting element supported on the sole-sliding elements, props supporting the roof supporting element on the sole-sliding elements, a displacing arrangement for displacing the sole-sliding elements and connected with the bride element, a guiding arrangement located between the sole-sliding elements and including two laterally spaced guiding rods connected at their mine face ends with a support element and at their backfilling ends with the bridge element via displacing arrangement, wherein a carriage is positively incorporated between the guiding rods of the guiding arrangement. The carriage carries a cylinder-and-piston unit which connects the carriage with the guiding arrangement at the backfilling end of the latter. The carriage also has a coupling member which extends in backfilling direction and connects the carriage with the displacing means at the backfilling end of the latter.
摘要翻译： 矿顶支架具有两个独滑滑动元件，一个将鞋底滑动元件彼此连接在一起的桥梁元件，位于后端的矿井端部，支撑在鞋底滑动元件上的屋顶支撑元件，支撑屋顶支撑元件的道具 在唯一滑动元件上，用于移动鞋底滑动元件并与新娘元件连接的移位装置，位于鞋底滑动元件之间的引导装置，并且包括两个横向间隔开的引导杆，该引导杆在其矿井端部与支撑件 元件，并且通过位移布置在桥接元件的回填端处，其中滑架积极地结合在引导装置的引导杆之间。 托架带有一个气缸和活塞单元，该单元和活塞单元将托架与引导装置连接在后者的回填端。 托架还具有在回填方向上延伸的联接构件，并且在后者的回填端将托架与移动装置连接。
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公开(公告)号：US3992888A
公开(公告)日：1976-11-23
申请号：US675054
申请日：1976-04-08
CPC分类号： E21D23/0039 , E21D23/04
摘要： A pit prop comprises an elongated skid adapted to lie on the floor and having a front end linkable to a support such as a face conveyor. A pair of generally parallel elongated feet flank the skid and each have a front portion which is substantially twice as wide as its rear portion. A slide fluid cylinder has a rear end secured to the rear end of the skid and a front end secured to a cross member attached to the front portions of the feet so that extension or contraction of the slide cylinder displaces the feet relative to the support. A pair of support arms each have a rear end loosely pivoted on the rear portion of the respective foot and a front end carrying a roof-engaging shield. A lift cylinder extends between each foot front portion and the respective front end of the respective arm for pressing the shield against the mine roof and the feet against the mine floor.
摘要翻译： 凹坑支架包括适于躺在地板上并且具有可连接到诸如面部输送机的支撑件的前端的细长的滑块。 一对大致平行的细长的脚在防滑板的侧面，并且每个具有前部，其大致是其后部的两倍宽。 滑动液压缸具有固定到滑动件后端的后端，并且前端固定到附接到脚的前部的横向构件，使得滑动缸的延伸或收缩相对于支撑件移动脚。 一对支撑臂各自具有在相应的脚的后部松动地枢转的后端和承载屋顶接合护罩的前端。 提升缸在每个脚前部和相应臂的相应前端之间延伸，用于将屏蔽件抵靠矿井顶板和脚抵靠在矿井底部。
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