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50 条记录 (耗时 0.016 秒)

    Arrangement for erecting columnar supporting elements for underground excavations
    1.
    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

    申请人： Peter Heintzmann ,  Manfred Koppers ,  Karlheinz Bohnes

    发明人： Peter Heintzmann ,  Manfred Koppers ,  Karlheinz Bohnes

    IPC分类号： E21D15/00 ,  E21D15/58 ,  E21D15/18 ,  E21D15/22

    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。

    Tunnel roof supporting apparatus
    2.
    发明授权
    Tunnel roof supporting apparatus 失效
    隧道屋顶支撑装置

    公开(公告)号：US4269547A

    公开(公告)日：1981-05-26

    申请号：US41401

    申请日：1979-05-21

    申请人： John D. Harding

    发明人： John D. Harding

    IPC分类号： E21D23/00 ,  E21D15/582 ,  E21D15/58

    CPC分类号： E21D23/0095

    摘要： The invention relates to a self-advancing roof supporting apparatus for providing temporary support of a portion of the roof of a tunnel, for example in an underground mine such as a coal mine. When tunnels are being extended, temporary roof supports need to be erected while the newly excavated material is removed and permanent roof supports installed.The apparatus of the invention has means engageable upon the permanent roof-supports to suspend the apparatus therefrom, and preferably has two relatively slidable gripping devices (5) or sets of devices to enable the apparatus to be advanced or withdrawn along the tunnel.

    摘要翻译： 本发明涉及一种自行进的屋顶支撑装置，用于提供隧道屋顶的一部分的临时支撑，例如在诸如煤矿的地下矿井中。 当隧道延伸时，需要竖立临时屋顶支撑，同时拆除新挖掘的材料并安装永久性屋顶支撑。 本发明的装置具有可固定在永久性屋顶支撑上的装置，用于将装置悬挂在其上，并且优选地具有两个相对可滑动的夹持装置（5）或装置组，以使得装置能够沿着隧道前进或撤回。

    Self-advancing mine roof supports
    9.
    发明授权
    Self-advancing mine roof supports 失效
    自行开采的屋顶支撑

    公开(公告)号：US3991578A

    公开(公告)日：1976-11-16

    申请号：US560723

    申请日：1975-03-21

    申请人： John Cooke ,  Derek Alker

    发明人： John Cooke ,  Derek Alker

    IPC分类号： E21D23/16 ,  E21D15/58 ,  E21D23/26 ,  E21D15/44 ,  F15B21/02

    CPC分类号： E21D15/585 ,  E21D23/26

    摘要： A control means, for a mine roof support having hydraulically extensible prop means and some other pressure-fluid-operated component (e.g. a hydraulic ram for advancing the support), comprises a control valve having selectable positions in one of which (the prop extend position) it will select for a supply of hydraulic pressure-fluid to said prop means. The control means also include a valve device having a position in which it will provide for a supply of pressure-fluid to the prop means and having means adapted to cause it to move to that position, when the control valve is operated to the prop extend position, and to keep it in that position even position. the control valve is operated from the prop extend positon. By this arrangement a pressure-fluid supply to the prop means will still be maintained so as to ensure proper setting thereof and to make up any leakage of fluid. The operation of the control valve from the prop extend position may be, for example, to bring it into a neutral position or to a position in which pressure-fluid is supplied to the advancing ram of the support.In one preferred embodiment of the invention the valve device has a pressure-fluid responsive movable member and is adapted to be connected, for its operation, to a pressure-fluid supply via the control valve.

    摘要翻译： 对于具有液压可伸长支撑装置和一些其它压力流体操作部件（例如，用于推进支撑件的液压柱塞）的矿山屋顶支撑件的控制装置包括控制阀，该控制阀具有可选择的位置，其中一个（支撑延伸位置 ）将选择供应液压压力流体到所述支承装置。 控制装置还包括一个阀门装置，该阀装置具有一个位置，在该位置中，它将提供压力流体供给支承装置并具有适于使其移动到该位置的装置，当控制阀被操作到支柱延伸 的位置，并保持在这个位置即使位置。 控制阀从支柱延伸位置操作。 通过这种布置，仍然保持对支柱装置的压力流体供应，以确保其适当的设定并弥补流体的任何泄漏。 控制阀从支柱延伸位置的操作可以是例如使其进入中间位置或将压力流体供应到支撑件的推进柱塞的位置。

    Mining shield-supporter
    10.
    发明授权
    Mining shield-supporter 失效
    采矿盾 - 支持者

    公开(公告)号：US3885397A

    公开(公告)日：1975-05-27

    申请号：US41876673

    申请日：1973-11-23

    申请人： TAIHEIYO COAL MINING CO LTD

    发明人： FUJIMORI MASAO

    IPC分类号： E21D11/40 ,  E21D19/04 ,  E21D15/02 ,  E21D15/58

    CPC分类号： E21D19/04 ,  E21D11/40

    摘要： A shield supporter for use in cutting a tunnel in which the assembling and installation of the shield supporter as well as the setting of beams for a main frame and foot frames in a mining shaft or tunnel are carried out, without interrupting the running of a cutting machine, and which is usable in any place, irrespective of earth bedding.

    摘要翻译： 用于切割隧道的屏蔽支撑件，其中进行屏蔽支撑件的组装和安装以及在采矿轴或隧道中的主框架和脚架的梁的设置，而不中断切割的运行 机器，并且可以在任何地方使用，而不管地垫。