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    A drilling tool for use in constructing large diameter boreholes
    21.
    发明公开
    A drilling tool for use in constructing large diameter boreholes 失效
    钻孔工具用于制造具有大直径的钻孔。

    公开(公告)号：EP0628700A3

    公开(公告)日：1995-07-19

    申请号：EP94108613.4

    申请日：1994-06-06

    申请人： TREVI S.p.A.

    发明人： Trevisani, Davide

    IPC分类号： E21B27/00 ,  E21D1/06

    CPC分类号： E21B27/00 ,  E21B17/16 ,  E21B27/04

    摘要： The drilling tool is adapted for being releasably mounted to the lower end of a rod string (20) of a drilling rig (30) and comprises a container (2) having a cylindrical or truncated-cone shape fitted at its lower end with a plurality of cutting tools or cutters (10) for crushing rock. The drilling tool (1) further comprises:
    a plate (3) for releasably retaining a plurality of modular elements (14) forming a load (13); and curved blades (9), located proximate to the cutting tools (10), adapted for conveying rock spalls into the container (2) through suitable apertures (8) in the bottom of the container (2). The cutting tools (10) are mounted to a plurality of radial plates (7) securely fixed proximate to the bottom edge of the container (2). The curved blades are welded to the edges of the radial plates (7), the concavity of each blade (9) being arranged facing the direction of rotation of the drilling tool (1).

    Shaft boring machine
    24.
    发明公开
    Shaft boring machine 失效
    轴掘进机。

    公开(公告)号：EP0115426A2

    公开(公告)日：1984-08-08

    申请号：EP84300460.7

    申请日：1984-01-25

    申请人： HARRISON WESTERN CORPORATION

    发明人： Snyder, Larry Lynn

    IPC分类号： E21D1/06

    CPC分类号： E21D1/06

    摘要： A machine for boring a shaft in earth strata or the like. An annular support ring means having an outside diameter approxiately equal to the diameter of the shaft which is selectively engageable or disengageable with the shaft wall by the use of clamping means is disclosed. A carriage means which is slidably mounted on the annular support ring means and orbital thereabout is also disclosed. A rotary cutting wheel means having a diameter substantially smaller than the diameter of the shaft is mounted on the carriage means and is axially displaceable with respect thereto for movement in a direction which may be parallel or inclined with respect to the axis of the shaft. Various drive means for moving the carriage means circumferentially about the annular support ring means, and for moving the rotary cutting wheel means in an axial direction with respect to the carriage means, and for rotating the rotary cutting wheel means are described. The use of the machine to make an overlapping helical path cut in earth strata whereby a generally cylindrical shaft is created is also described.

    Halterung für Bohrkopf-Werkzeuge
    25.
    发明公开
    Halterung für Bohrkopf-Werkzeuge 失效
    持有人对钻具。

    公开(公告)号：EP0072503A2

    公开(公告)日：1983-02-23

    申请号：EP82107079.4

    申请日：1982-08-05

    申请人： Wirth Maschinen- und Bohrgeräte-Fabrik GmbH

    发明人： Tibussek, Fritz

    IPC分类号： E21D9/10 ,  E21D1/06 ,  E21B10/10

    CPC分类号： E21B10/10 ,  E21B10/12 ,  E21D9/104

    摘要： Um bei Bohrköpfen von Tunnelbohrmaschinen, Großlochbohrmaschinen, Schachtbohrmaschinen od.dgl. die Werkzeuge von der Bohrkopfrückseite her ein- und ausbauen zu können, Ist ein Halter mit festen Abstützflächen und mit Durchgangswegen, Durchlässen od.dgl. für die Kopfteile eines Werkzeug-Tragkörpers versehen, in einer solchen Anordnung, daß das Werkzeug in einer zusammengesetzten Bewegung, die eine Drehung oder Schwenkung zumindest eines seiner Teile einbegreift, in den Einbauzustand bewegbar Ist, in dem an den Kopfteilen befindliche Anlageflächen unmittelbar auf den festen Abstützflächen des Halters aufliegen. Die Erfindung ist sowohl für Werkzeuge mit drehbaren Werkzeugelementen, wie Schneidrollen u.dgl., als auch für Werkzeuge mit feststehenden Werkzeugelementen, wie Schrämmeißeln od.dgl., anwendbar.

    摘要翻译： 为了在隧道掘进机，大型钻孔，钻井机械钻头等。 的工具，以便能够安装和从钻头后方侧固定支承表面和通路，通道或类似物除去，保持器。 提供了一种用于工具载体主体的头部部分，在这样的布置中，在其中einbegreift旋转或它的部件中的至少一个枢转的复合运动的工具，能够在安装状态下立即在位于邻接表面的头部移动固定在 休息支撑保持器的表面上。 本发明是等既用于与旋转刀具的元件，如切割辊的工具。，以及用于与固定工具元件，诸如Schrämmeißeln等。，适用的工具。

    Boring tools
    26.
    发明公开
    Boring tools 失效
    Tiefbohrer。

    公开(公告)号：EP0050954A1

    公开(公告)日：1982-05-05

    申请号：EP81304896.4

    申请日：1981-10-20

    申请人： CEMENTATION RESEARCH LIMITED

    发明人： Winder, Richard Bryan ,  Miller, Roy Bruce ,  Salter, Martin De Gaudrion

    IPC分类号： E21B4/16 ,  E21D1/06

    CPC分类号： E21B4/16 ,  E21B7/003 ,  E21B7/28 ,  E21D1/06

    摘要： Apparatus for boring holes in the ground is provided, the apparatus comprising two cutting heads (1.1, 1.14) arranged coaxially and separated by an elongate tubular member (1.4). The first cutting head (1.14) is carried by the elongate tubular member itself, and acts as a pilot boring head. The second cutting head (1.1) is annular and serves to form the bore proper. The apparatus also includes means (1.7) carried externally by the elongate tubular member for collecting debris produced in the course of a boring operation, or for deflecting debris away from the first (i.e. lower) cutting head. In one development, the elongate tubular member is cut away in part so thatthe interior of the tubular member is exposed to part of the earth surface within the pilot bore.
    The debris collecting means can be in the form of a collar located aboutthe elongate tubular member, or it may be in the form of a helical ledge or scroll (1.7) which carries debris along when the first cutting head is rotated.
    Embodiments of the apparatus provide a large degree of working space within the elongate tubular member (1.4) which allows the provision of other functional units, such as debris removal means, pumping means, and grouting means, as well as allowing adequate space for inspection of the earth surfaces which are being worked.

    摘要翻译： 提供了用于在地面上钻孔的设备，该设备包括同轴并由细长管状构件（1.4）分开的两个切割头（1.1,1.14）。 第一切割头（1.14）由细长管状构件本身承载，并且用作导向钻头。 第二切割头（1.1）是环形的，用于形成孔。 该装置还包括由细长管状构件外部承载的装置（1.7），用于收集在钻孔操作过程中产生的碎屑，或用于将碎屑从第一（即下部）切割头偏转。 在一个发展中，细长管状部件被部分地切除，使得管状部件的内部暴露于导向孔内部的地球表面的一部分。 碎屑收集装置可以是围绕细长管状构件的套环的形式，或者它可以是沿着第一切割头旋转时携带碎屑的螺旋壁架或涡卷（1.7）的形式。 该装置的实施例在细长管状构件（1.4）内提供大的工作空间，其允许提供其它功能单元，例如碎屑去除装置，泵送装置和灌浆装置，并且允许足够的空间检查 正在工作的地球表面。