Supporting of excavation roofs
    1.
    发明授权
    Supporting of excavation roofs 失效
    支持挖掘屋顶

    公开(公告)号:US4255071A

    公开(公告)日:1981-03-10

    申请号:US70307

    申请日:1979-08-27

    IPC分类号: E21D15/02 E21D23/04

    CPC分类号: E21D15/02

    摘要: Roofs of underground excavations are supported by forming sheet-material elements into tubes whose diameter can be varied by changing the overlap between the longitudinal edges of the rolled-up sheet material, standing the tubes upright to bear against the roof and the floor of the excavation, and filling them with hardenable material in flowable condition which, after hardening, will form a roof-supporting column.

    摘要翻译: 地下开挖的屋顶通过将片状材料元件形成管子来支撑,其直径可以通过改变卷起的片材的纵向边缘之间的重叠而变化,将管直立以抵靠屋顶和挖掘的地板 ,并在可流动状态下填充可硬化材料,硬化后将形成屋顶支撑柱。

    Chain bucket conveyor
    2.
    发明授权
    Chain bucket conveyor 失效
    链式输送机

    公开(公告)号:US4437562A

    公开(公告)日:1984-03-20

    申请号:US320716

    申请日:1981-11-12

    IPC分类号: B65G19/08

    CPC分类号: B65G19/08

    摘要: A chain bucket conveyor for an underground excavation has a substantially U-shaped forward conveyor part at the side of the sole and open toward a roof, a return conveyor part at the side of backfilling and closed in a substantially channel-like manner, wherein the return conveyor part is normal to the forward conveyor part, and means for transporting the chain from one to the other of the conveyor parts and including actuating stations, a rotary chain wheel having chain pockets and arranged at the actuating stations rotatable about an axis which extends toward the roof and backfilling and is located in a vertical plane transverse to the longitudinal direction of the conveyor, and a conical surface narrowing toward the roof and having an axis coinciding with the axis of rotation of the chain wheel.

    摘要翻译: 用于地下挖掘的链斗式输送机在鞋底侧具有基本上U形的向前输送部分,并朝向屋顶开口,在回填一侧的返回传送部分以基本上为通道状的方式封闭,其中 返回传送部分与正向传送部分相对,以及用于将链条从一个传送到另一个传送部分并且包括致动站的装置,具有链槽的旋转链轮,并且布置在致动站周围可延伸的轴线可旋转 朝向屋顶并回填,并且位于横向于输送机纵向方向的垂直平面中,并且朝向屋顶变窄并且具有与链轮的旋转轴线重合的圆锥形表面。

    Excavation roof support and method of installing the same
    3.
    发明授权
    Excavation roof support and method of installing the same 失效
    挖掘屋顶支撑及其安装方法

    公开(公告)号:US4277204A

    公开(公告)日:1981-07-07

    申请号:US74998

    申请日:1979-09-13

    IPC分类号: E21D15/02 E21D15/58 E21D15/00

    CPC分类号: E21D15/02 E21D15/58

    摘要: A method and a system are disclosed for supporting an overburden. A single-section or telescoped multi-section longitudinally slit prop casing of light sheet material such as cardboard or metal has a fabric bag installed in it. When the casing is erected the bag is filled with a slurry of hardenable substance which, upon hardening, forms in the bag a column which supports the overburden. The casing may be left in place or it may be removed for re-use.

    摘要翻译: 公开了用于支撑覆盖层的方法和系统。 轻质片材(如纸板或金属)的单段或多层纵向狭缝支撑套筒内装有一个织物袋。 当套管竖立时,袋子中填充有可硬化物质的浆料,硬化后,在袋子中形成支撑上覆层的柱。 外壳可以放置在适当位置,或者可以将其移除以重新使用。

    Peripherally flexible prop arch for mining tracks, tunnels or the like
    4.
    发明授权
    Peripherally flexible prop arch for mining tracks, tunnels or the like 失效
    用于采矿轨道,隧道等的外围柔性支撑拱

    公开(公告)号:US4630973A

    公开(公告)日:1986-12-23

    申请号:US617522

    申请日:1984-06-04

    IPC分类号: E21D11/20 E21D11/22 E21D11/18

    CPC分类号: E21D11/22 E21D11/20

    摘要: A peripherally flexible arch for propping rock structure for mining tracks, tunnels or the like is comprised of a plurality of partially overlapped elongated segments, each of which has an end portion extended toward the rock structure, a bottom portion opposite to the end portion, and a lateral flange offset from the end portion laterally and in the direction toward the bottom portion. Clamping devices are arranged at the ends of the overlapping regions of the segments to clamp the segments to each other. The end portion of each lower segment is inserted into a groove formed between the end portion and the flange portion of each upper segment at the side of this segment facing away from the rock structure. Each clamping device has a hook engaged in a groove formed between the end portion and the flange of the upper segment at the side of this segment facing toward the rock structure.

    摘要翻译: 用于支撑用于采矿轨道,隧道等的岩石结构的外围柔性拱形物包括多个部分重叠的细长段,每个细长段具有朝向岩石结构延伸的端部,与端部相对的底部,以及 横向凸缘从端部侧向偏向底部的方向偏移。 夹紧装置布置在段的重叠区域的端部,以将段彼此夹紧。 每个下段的端部插入形成在每个上段的端部和凸缘部分之间的槽中,该槽在该段的背离岩石结构的一侧。 每个夹紧装置具有接合在形成在该段的端部和上段的凸缘之间的凹槽中的钩,其面向岩石结构。

    Hydraulic prop
    5.
    发明授权
    Hydraulic prop 失效
    液压支柱

    公开(公告)号:US4572480A

    公开(公告)日:1986-02-25

    申请号:US548075

    申请日:1983-10-31

    IPC分类号: E21D15/44 B66F3/24

    CPC分类号: E21D15/44

    摘要: An hydraulic prop utilized for barricades in blasting operations that affords simplified mounting and dismantling and will have minimal functional inefficiency if deformed by the impact of rocks; and it can be made out of unworked pipe of minimal standards. Two specific guide regions disposed on the piston are spaced large enough from each other that comparatively wide tolerances can be achieved between the piston and the cylinder.

    摘要翻译: 用于爆破作业中的路障的液压支柱提供简化的安装和拆卸,如果由于岩石的撞击而变形,其功能无效率将降低; 并且可以由最低标准的无工作管道制成。 布置在活塞上的两个特定引导区域彼此间隔足够大,可以在活塞和气缸之间实现相当宽的公差。

    Arrangement for erecting columnar supporting elements for underground
excavations
    6.
    发明授权
    Arrangement for erecting columnar supporting elements for underground excavations 失效
    竖立用于地下挖掘的柱状支撑元件的布置

    公开(公告)号:US4332512A

    公开(公告)日:1982-06-01

    申请号:US145059

    申请日:1980-04-30

    CPC分类号: E21D15/585 E21D15/002

    摘要: An arrangement for erecting a columnar supporting element of a hardenable flowable material, for a roof of an underground excavation, has a hollow casing for filling with a hardenable flowable material and is composed of two telescopable casing portions each composed of two open-end semi-circular sections, an element for holding the upper casing portion in contact with the roof of an underground excavation and arranged adjacent to the casing, and elements for connecting the semi-circular sections of at least the lower prop casing portions with one another so as to be pivotable about a longitudinal pivot axis which is parallel to the longitudinal axis of the prop casing, and locking the same with one another.

    摘要翻译: 用于竖立可硬化流动材料的柱状支撑元件的装置,用于地下开挖的屋顶,具有用于填充可硬化的可流动材料的中空的外壳,并且由两个可伸缩的壳体部分组成, 圆形部分,用于保持上部壳体部分与地下挖掘的顶部接触并且邻近壳体布置的元件,以及用于将至少下部支撑壳体部分的半圆形部分彼此连接的元件,以便 可以围绕平行于支撑套管的纵向轴线的纵向枢转轴线枢转,并将其相互锁定。

    Method of and arrangement for loosening, loading and transporting of
stratified minerals in underground elongated front longwalls
    7.
    发明授权
    Method of and arrangement for loosening, loading and transporting of stratified minerals in underground elongated front longwalls 失效
    地下细长前长壁分层矿物松动,装载和运输的方法与安排

    公开(公告)号:US4620748A

    公开(公告)日:1986-11-04

    申请号:US597525

    申请日:1984-04-06

    CPC分类号: E21C25/68 E21C27/32 E21C35/20

    摘要: A method of and an arrangement for loosening, loading and transporting of stratified minerals includes a single continuously rotating and forceably guided pulling organ, a plurality of loosening elements integrated in the pulling organ in its working run extending in a longitudinal direction of a longwall, and a plurality of transporting elements also integrated in the same single pulling organ at its transporting run located behind the working run at a back filling side, wherein the loosening elements perform loosening and loading functions, whereas the transporting elements perform the transporting functions in an opposite longitudinal direction of the longwall.

    摘要翻译: 分层矿物的松动,装载和运输的方法和装置包括单个连续旋转和有力引导的牵引器,多个松动元件,其在沿着长壁的纵向方向延伸的工作行程中集成在牵引器中,以及 多个传送元件也集成在同一单个牵引器的运输过程中,位于后填充侧的工作行程后面,其中松动元件执行松动和加载功能,而传送元件在相对的纵向上执行传送功能 长壁方向。

    Shut-off valve
    8.
    发明授权
    Shut-off valve 失效
    关闭阀

    公开(公告)号:US4610424A

    公开(公告)日:1986-09-09

    申请号:US674834

    申请日:1984-11-26

    IPC分类号: F16K1/36 F16K47/04 F16K1/38

    CPC分类号: F16K1/36

    摘要: A shut-off valve has a sealing cone which in a closed position of the valve abuts against a conical sealing seat and is formed as a part of a cylindrical throttling piston, a sealing surface of the sealing seat cooperates at its one end with a cylindrical receiving opening for the throttling piston, and the outer diameter of the throttling piston is selected with respect to the inner diameter of the receiving opening so that a throttling gap is formed between the receiving opening and the the throttling piston.

    摘要翻译: 截止阀具有密封锥体,其在阀的关闭位置抵靠锥形密封座并且形成为圆柱形节流活塞的一部分,密封座的密封表面在其一端与圆柱形 用于节流活塞的接收开口,并且节流活塞的外径相对于接收开口的内径选择,使得在接收开口和节流活塞之间形成节流间隙。

    Rock anchor arrangement
    9.
    发明授权
    Rock anchor arrangement 失效
    岩锚安排

    公开(公告)号:US4576524A

    公开(公告)日:1986-03-18

    申请号:US599563

    申请日:1984-04-11

    IPC分类号: E21D20/02 E21D21/00 F16B13/14

    摘要: A rock anchoring arrangement for use in tunnel and mine constructions comprises an elongated anchoring rod insertable in a bore formed in a rock formation, and a supporting plate arranged in contact with the rock formation at the open end of the bore. The anchoring rod includes a leading end portion fixable at the bottom of the bore, a trailing end portion fixable at the open end of the bore, and a smooth intermediate portion of a cross-sectional area smaller than those of the trailing end portion and the leading end portion. The anchoring rod is fixable by an adhesive within the bore at the leading end portion and at the trailing end portion whereas the intermediate portion is surrounded by an adhesive-repellent material to prevent the sticking thereof to the adhesive.

    摘要翻译: 用于隧道和矿井结构的岩石锚固装置包括可插入形成在岩层中的孔中的细长锚杆和在孔的开口端处与岩层接触地布置的支撑板。 锚定杆包括可固定在孔的底部的前端部,可固定在孔的开口端的后端部,以及平滑的中间部分,其横截面积小于尾端部分和 前端部分。 锚定杆可以通过在前端部和后端部的孔内的粘合剂固定,而中间部分被拒胶材料包围以防止粘附到粘合剂上。

    Hydraulically operated unit for roof support
    10.
    发明授权
    Hydraulically operated unit for roof support 失效
    用于屋顶支撑的液压操作单元

    公开(公告)号:US4640650A

    公开(公告)日:1987-02-03

    申请号:US521735

    申请日:1983-08-09

    IPC分类号: B23P19/02 E21D15/44 E21D15/50

    摘要: In a hydraulically operated unit, particularly a prop for a support in an underground excavation, a thin-walled tubular jacket is pressed on an inner element which is movable in an outer tubular element so that the tubular jacket has an inner diameter which is determined with a substantial undersizing relative to the outer diameter of the inner element, and the tubular jacket is clamped on the inner element with exceeding of the flow limit of the inner element and only in a plastic expansion condition which exceeds with a reliable distance and elastic deformation region of the tubular jacket and with a sufficient residual springing part.

    摘要翻译: 在液压操作的单元中,特别是用于地下挖掘中的支撑的支柱,薄壁管状夹套被压在内部元件上,该内部元件可在外部管状元件中移动,使得管状护套的内径由 相对于内部元件的外径的实质尺寸较小,并且管状夹套被夹在内部元件上,超过内部元件的流动极限,并且仅在超过可靠距离和弹性变形区域的塑性膨胀条件下 并具有足够的残余弹性部分。