A ROCK BOLT
    1.
    发明公开
    A ROCK BOLT 审中-公开

    公开(公告)号:EP4438852A1

    公开(公告)日:2024-10-02

    申请号:EP23164639.9

    申请日:2023-03-28

    IPC分类号: E21D21/00

    CPC分类号: E21D21/0033 E21D21/008

    摘要: A rock bolt 10 comprising: an elongate, generally circular tube 12, the tube 12 having a leading end 14 and a trailing end 16, an expander mechanism 18 disposed within the tube 12 in the region of the leading end 14, an elongate tendon 28 disposed longitudinally within the tube 12 and in connection at or towards a first end 26 of the tendon 28 with the expander mechanism 18 and in connection at or towards a second 38 and opposite end of the tendon 28 with an anchor arrangement 30 positioned at the trailing end 16 of the tube 12, the tendon 28 being actuatable to actuate the expander mechanism 18 and to remain connected between the expander mechanism 18 and the anchor arrangement 30 while the expander mechanism 18 is actuated, wherein the anchor arrangement 30 includes a couple 44, 54, 66 which, under tensile loading of the tendon 28, has a first mode of operation that allows movement of the anchor arrangement 30 axially away from the trailing end 16 of the tube 12 and enabling further expansion of the expander mechanism 18, and a second mode of operation that couples the anchor arrangement 30 to the tube 12 preventing further movement of the anchor arrangement 30 axially away from the trailing end 16 of the tube 12.

    ROCK BOLT
    3.
    发明公开
    ROCK BOLT 审中-公开

    公开(公告)号:EP4174284A1

    公开(公告)日:2023-05-03

    申请号:EP21205283.1

    申请日:2021-10-28

    IPC分类号: E21D21/00

    摘要: A rock bolt (1) comprising a central rod (2), a tubular outer body (5) provided around the central rod (2), and an expansion mechanism (8, 9) for radially expanding the leading portion (6) of the outer body (5), wherein the rock bolt (1) is designed such that the outer body (5) at installation is pulled into a bore of a formation from the leading portion (6) of the outer body (5) using driving force applied via the central rod (2).

    MATERIAL ADDITIVE MODULE AND A METHOD OF RENEWING MATERIAL IN WORN AREAS FOR GROUND MOVING PARTS

    公开(公告)号:EP4050161A1

    公开(公告)日:2022-08-31

    申请号:EP21159682.0

    申请日:2021-02-26

    发明人: Lehto, Tony

    IPC分类号: E02F3/14 E02F9/28

    摘要: A method of adding at least one wear protection region to a ground moving part comprising the steps of: providing a pre-use 3D image of the part; 3D scanning the geometry of the part after use to provide an after-use 3D image; comparing the after-use 3D image to the pre-use 3D image; calculating and identifying the positions and areas of one or more worn areas; selectively adding at least one wear protection region to or adjacent to the one or more worn areas on the part. Also, a module for selectively applying at least one wear protection region to a ground moving part for renewing wear resistance comprising: a 3D scanning device for producing an after-use 3D image and optionally also a pre-use 3D image; a computer system for comparing the pre-use 3D image and the after-use 3D image and processing the data to identify one or more worn areas; a wear protection additive

    GROUND ENGAGING WEAR MEMBER AND MEANS OF MECHANICAL ATTACHMENT
    5.
    发明公开
    GROUND ENGAGING WEAR MEMBER AND MEANS OF MECHANICAL ATTACHMENT 审中-公开
    土壤和编辑磨损元件的机械紧固件FOR ITS

    公开(公告)号:EP2710193A1

    公开(公告)日:2014-03-26

    申请号:EP12789871.6

    申请日:2012-05-21

    IPC分类号: E02F9/28

    摘要: A wear member assembly (10) has a wear member (22), a wear member receiver (20) with at least first and second contact portions and at least one aperture (80) to receive at least one wear member locating member (26) of the wear member. An attachment mechanism (44,46) releasably attaches the wear member to the receiver has at least one moveable attachment member (44) and at least one respective fastening means (44). Actuation of each of the fastening means moves the associated attachment member to apply a retaining force to one of the contact portions of the receiver and causes the respective wear member locating member to apply a retaining force to the other of the contact portions of the receiver. At least one of the receiver first and second contact portions has a sloped or tapered face (54,58) and the corresponding wear member locating member (26) or attachment member (44) has a slope or taper (52,56) such that contact between the wear member locating member slope/taper or attachment member slope/taper and a corresponding one of the wear member receiver sloped/tapered contact portions causes the wear member to positively locate to the receiver when the releasable fastening means is actuated thereby releasably retaining the wear member to the outer surface of the earth moving apparatus member.

    A ROCK BOLT
    7.
    发明公开
    A ROCK BOLT 审中-公开

    公开(公告)号:EP4257795A1

    公开(公告)日:2023-10-11

    申请号:EP22167432.8

    申请日:2022-04-08

    IPC分类号: E21D21/00

    摘要: A rock bolt for use in rock strata, particularly strata that is weak or unstable. The rock bolt (10) comprises a tube (12) that has a leading end (14) and a trailing end (16) and an expander mechanism (18) disposed within the tube (12) in the region of the leading end (14). An elongate bar (24) is disposed within the tube (12) and is connected at or towards a first end of the bar with the expander mechanism and is connected at or towards a second and opposite end of the bar (28) with an anchor arrangement (26) positioned at the trailing end (16) of the tube (12). The elongate bar (24) can actuate the expander mechanism (18) and remains connected between the expander mechanism (18) and the anchor arrangement (26) while the expander mechanism (18) is actuated. The tube (12) has a displaceable wall section (42) in the region of the leading end (14) which has a hinge end (52) proximal the leading end (14) connecting the displaceable wall section (42) to the tube (12), and side walls (46) extending from the hinge end (52) to an anchor end (48) distal to the leading end (14). The expander mechanism (18) can be actuated to displace the displaceable wall section (42) to rotate about the hinge end (52) to shift the anchor end (48) outwardly from the tube (12).

    DRIVER SOCKET FOR INSTALLATION OF A GROUND REINFORCEMENT BOLT

    公开(公告)号:EP4130426A1

    公开(公告)日:2023-02-08

    申请号:EP21189965.3

    申请日:2021-08-05

    IPC分类号: E21D21/00 E21D20/00

    摘要: A driver socket (1) for installation of a ground reinforcement bolt (100). The driver socket (1) comprises a cylindrical tube (2) with a longitudinal axis (A), wherein a leading end (10) of the driver socket (1) is adapted to be arranged in connection to the bolt (100) and a trailing end (20) of the driver socket (1) is adapted to be arranged in connection to a driving device, and wherein the driver socket (1) comprises a through hole. The through hole along its axial length has a varying cross-sectional area comprising a first diameter (D1) in a mid-section (3) being smaller than a second diameter (D2) in the leading section (13); and wherein the through hole comprises a transition (11) between the mid-section (3) and the leading section (13) with a frustoconical shape. Also an installation system comprising a ground reinforcement bolt (100) and a driver socket (1).