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公开(公告)号：US20240167383A1
公开(公告)日：2024-05-23
申请号：US18242545
申请日：2023-09-06
发明人： Xinjiang Wei , Zeyu Cheng , Hongshui Zhu , Shiming Du , Jun Zhao , Yun Wang , Hanhua Zhu , Tongchun Han
CPC分类号： E21D15/14 , E21D15/005
摘要： A telescopic device includes a first U-shaped connector with a plurality sets of adjustment slots defined in two sides thereof and arranged along an adjustment direction; a second U-shaped connector defining first through holes in two sides thereof, the second U-shaped connector being inserted into the first U-shaped connector with U-shaped openings thereof opposite to each other to define an accommodating space; a first spring located in the accommodating space and abutting against the first and second U-shaped connectors, respectively; an elastic pin with two ends thereof extending through the first through holes and engaging into one of the plurality sets of adjustment slots; and an initial fixing pin being detachably connected to the first and second U-shaped connectors. A telescopic annular tunnel steel arch includes an upper arch, two lower arches and two telescopic devices connecting two ends of the upper arch to the two lower arches, respectively.
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公开(公告)号：US10883366B2
公开(公告)日：2021-01-05
申请号：US16662246
申请日：2019-10-24
发明人： David A. Hussey , George A. Watson
摘要： A system or method for a structural mine roof support includes a roof support apparatus that includes a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and coaxial with an axis of the cylinder. Also, a roof support apparatus with a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and coaxial with an axis of the cylinder, and voids between adjacent bamboo sections, the voids being injected with a filler material, e.g., polyurethane foam, to maintain axial positioning of the bamboo sections when under load. The support apparatus configured to load and to yield in a predetermined fashion to control a mine roof from sudden failure.
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公开(公告)号：US10113425B2
公开(公告)日：2018-10-30
申请号：US15513300
申请日：2015-09-09
发明人： Brian MacDonald , Michael Mapp
摘要： The present invention relates to a mining method including the step of forming one or more sets of gate roads. Each set of gate roads includes at least two headings typically for providing and retuning ventilation. Dead end plunge cuts extend from the sets of gate roads. Each plunge cut is formed with a continuous miner coupled to a flexible conveyor system. Each plunge cut is greater than 30 meters in length. Advantageously, narrow elongate pillars may be left between adjacent plunge cuts, thereby resulting in greater material removal per volume and improved operating costs when compared with bord and pillar mining.
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公开(公告)号：US20100104376A1
公开(公告)日：2010-04-29
申请号：US12522997
申请日：2008-01-18
CPC分类号： E21D15/483
摘要： A grout bag assembly (1) is provided comprising an inflatable grout bag (2) (hereinafter termed a primary inflatable grout bag) having a top (4), bottom (6) and at least one side (8) and having in an expanded condition an axis extending between the top and bottom thereof. A secondary, independently inflatable, grout bag (14) expandable in the same direction as the primary inflatable bag is attached to one end of the primary inflatable grout bag. The secondary grout bag is employed, in use, subsequent to be installation of the primary grout bag to compensate for shrinkage in the height of the primary grout bag and to thereby supplement the overall axial dimension of the grout bag assembly, in use.
摘要翻译： 提供一种灌浆袋组件（1），其包括具有顶部（4），底部（6）和至少一个侧面（8）的膨胀灌浆袋（以下称为主要充气灌浆袋），并且具有膨胀的 条件是在顶部和底部之间延伸的轴。 能够沿与主充气袋相同的方向膨胀的辅助独立充气的灌浆袋（14）附接到主充气灌浆袋的一端。 在使用中，使用次级灌浆袋，在安装初级灌浆袋之后，补偿初级灌浆袋高度的收缩，从而补充使用中的灌浆袋组件的整体轴向尺寸。
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公开(公告)号：US20070267559A1
公开(公告)日：2007-11-22
申请号：US11575622
申请日：2005-09-15
申请人： Anthony Spearing , Joseph Jingle
发明人： Anthony Spearing , Joseph Jingle
IPC分类号： E21D15/00
CPC分类号： E21D15/43
摘要： A load support includes an outer tube and a plunger at least partially slidably disposed within the outer tube. Gravity-set wedging members are disposed between an outer surface of the plunger and an inner surface of the outer tube for setting the plunger and outer tube in place with respect to each other, wherein the wedging members are substantially self-setting under gravity. The wedging members gouge the outer surface of the plunger and the inner surface of the outer tube upon inward axial movement of the plunger within the outer tube.
摘要翻译： 负载支撑件包括外管和至少部分可滑动地设置在外管内的柱塞。 重力装置楔块构件设置在柱塞的外表面和外管的内表面之间，用于将柱塞和外管相对于彼此设置就位，其中楔形构件在重力下基本上自设定。 当柱塞在外管内部向内轴向运动时，楔形构件将柱塞的外表面和外管的内表面冲压。
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6.发明授权Method for joining the functional parts of hydraulic or pneumatic working devices, and joining connection 失效用于连接液压或气动加工装置的功能部件以及连接连接的方法公开(公告)号：US07228787B2
公开(公告)日：2007-06-12
申请号：US10524567
申请日：2003-08-23
申请人： Guy Zins
发明人： Guy Zins
IPC分类号： E21D15/00
CPC分类号： F16B3/005 , E21D15/24 , E21D15/44 , F16B11/008 , Y10T403/475
摘要： Joining connections are presented for joining the functional parts of hydraulic or pneumatic operating devices the joining connections including a first part exhibiting an external wall section and a second part exhibiting an internal wall section, which are joined together with mutually overlapping wall sections having depressions that form a cavity, in the connected state that is filled with a fluid casting compound of plastic that connects the two parts together by means of a positive form fit after hardening to prevent relative displacements between the two functional parts and to seal the separating gap clearance between the wall sections of the two functional parts.
摘要翻译： 接合连接用于连接液压或气动操作装置的功能部件，连接连接包括具有外壁部分的第一部分和呈现内壁部分的第二部分，所述第二部分具有相互重叠的壁部分，所述壁部分形成有凹陷部 在连接状态下的空腔，其填充有塑料的流体浇铸复合物，其在硬化之后通过正型配合将两个部分连接在一起，以防止两个功能部件之间的相对位移并且密封两个功能部件之间的分离间隙间隙 两个功能部分的墙段。
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公开(公告)号：US20070031197A1
公开(公告)日：2007-02-08
申请号：US11544321
申请日：2006-10-06
申请人： John Stankus , John Oldsen
发明人： John Stankus , John Oldsen
IPC分类号： E21D15/00
CPC分类号： E21D15/325 , E21D15/40
摘要： A yieldable prop having a first end and a second end includes a first hollow conduit, a second conduit slidably received in the first hollow conduit, and a clamp assembly positioned adjacent the juncture of the first hollow conduit and the second conduit. A yield section is provided at the end of the first and/or second conduits, or at the juncture of the first and second conduits. The yield section includes a shroud spaced from an inner pipe to provide a space to receive a collapsible insert. An end of a conduit is positioned in the space and compresses the insert when the compressive load on the prop exceeds the compressive load capacity of the insert.
摘要翻译： 具有第一端和第二端的可屈服支撑件包括第一空心管道，可滑动地容纳在第一中空管道中的第二管道和邻近第一中空管道和第二管道的接合部定位的夹具组件。 屈服部分设置在第一和/或第二导管的末端，或在第一和第二导管的接合处。 产量部分包括与内管间隔开的护罩，以提供容纳可折叠插入物的空间。 当支柱上的压缩载荷超过插入件的压缩载荷能力时，导管的端部定位在该空间中并压缩插入件。
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公开(公告)号：US5342150A
公开(公告)日：1994-08-30
申请号：US23618
申请日：1993-02-26
申请人： Chris D. Kitchen
发明人： Chris D. Kitchen
CPC分类号： E21D15/12 , E21D15/005
摘要： A roof support column used as a support between the roof and floor of a mine comprises a stacked series of hollow roof support cribs containing a mixture of light-weight aggregate such as volcanic lava, tuft, or pumice, and a chemical foam contained in a double-walled high density paper tubing. The combination of these materials results in a roof support crib which has the yielding characteristics of wood. Such cribs called variable yielding cribs are stacked and locked on top of one another to form a vertical cylindrical cribbing support column.
摘要翻译： 用作矿山屋顶和地板之间的支撑物的屋顶支撑柱包括堆叠的一系列空心屋顶支撑床，其包含轻质骨料如火山熔岩，簇绒或浮石的混合物，以及包含在 双层高密度纸管。 这些材料的组合产生具有木材屈服特性的屋顶支撑床。 这种称为可变屈服婴儿床的婴儿床被堆叠并锁定在彼此之上，以形成垂直的圆柱形支撑柱。
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9.发明授权
公开(公告)号：US5318388A
公开(公告)日：1994-06-07
申请号：US990581
申请日：1992-12-16
CPC分类号： E04G11/486 , E04G11/48 , E04G25/06 , E04G5/02 , E21D15/24 , Y10T403/606
摘要： A shoring leg provided with a latch for use in maintaining an end plate on the shoring leg and a jack collar in a predetermined position relative to each other, the latch comprising a latch member mounted on the leg to execute a movement from a latching position to a release position, the latch member defining a recess jaw adapted, when in the latching position, to receive part of the leg end plate and to receive a corresponding part of an adjacent collar of a jack to retain the end plate and the collar in said predetermined position, there being means to retain the latch member in the latching position.
摘要翻译： 一种支撑腿，其设置有用于将支撑板上的端板和相对于彼此保持在预定位置的千斤顶轴环保持的闩锁，所述闩锁包括安装在所述腿上的闩锁构件，以执行从闩锁位置到 释放位置，所述闩锁构件限定凹陷卡爪，所述凹陷卡爪在处于所述闩锁位置时适于接纳所述腿端板的一部分并且容纳所述相对的千斤顶的相应部分，以将所述端板和所述套环保持在所述 预定位置，存在将闩锁构件保持在闩锁位置的装置。
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公开(公告)号：US4312609A
公开(公告)日：1982-01-26
申请号：US165203
申请日：1980-07-01
CPC分类号： E21D23/0004
摘要： A mine roof support system having sets of laterally spaced pairs of elongated support members adapted to be moved into and out of abutting relation with a mine roof. Wheel supported frames extend between and connect adjacent end portions of each pair of support members with adjacent wheel supported frames at the ends of the support members being in spaced tandem relation and connected to each other by connector members. Extensible prop members are connected to and move the wheel supported frames and the elongated support members connected thereto selectively toward and away from the mine roof.
摘要翻译： 一种矿顶支撑系统，其具有一组横向间隔开的一对细长支撑构件，所述细长支撑构件适于移动进入和离开与矿顶的邻接关系。 轮支撑的框架在每对支撑构件的相邻端部之间延伸并且连接在支撑构件的端部处的相邻的轮支撑框架处于间隔开的串联关系并且通过连接器构件彼此连接。 可伸缩的支撑构件连接到并移动车轮支撑的框架，并且连接到其上的细长支撑构件选择性地朝向和离开矿顶。
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