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公开(公告)号：WO2019185481A1
公开(公告)日：2019-10-03
申请号：PCT/EP2019/057265
申请日：2019-03-22
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： LILJA, Mirjam , TARRAGÒ CIFRE, José, Maria , BORGH, Ida , MÅRTENSSON, Malin , ARVANITIDIS, Ioannis , TURBA, Krystof
IPC: C22C29/08 , C04B35/56 , B22F5/00 , C04B35/626 , C04B35/63 , C04B35/634 , C04B35/645 , C22C29/00
Abstract: A rock drill insert made of cemented carbide that comprises hard constituents of tungsten carbide (WC) in a binder phase of Ni-Cr, or Ni-Co-Cr, and balance WC and unavoidable impurities, wherein the cemented carbide comprises 3.5-18 wt% binder phase, the binder phase comprises > 0 wt% Ni, the mass ratio Cr/(Ni+Co) is 0.02- 0.19, the difference between the hardness at 0.3 mm depth at some point of the surface of the rock drill insert and the minimum hardness of the bulk of the rock drill insert is at least 30 HV3.
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公开(公告)号：WO2022242959A1
公开(公告)日：2022-11-24
申请号：PCT/EP2022/059496
申请日：2022-04-08
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： NILSEN, Petter , CERMENIUS, Claes Roland , BERG, Jan
Abstract: A method for recovery at least one cemented carbide body from a component comprising the steps of: first clamping the component in a clamping device; and then simultaneously or cyclically heating and vibrating the component to dislodge the at least one cemented carbide body from the component. Also, an apparatus for recovery of at least one cemented carbide body from a component having an axial axis comprising: a vibrating device for vibrating the component in a vertical direction with respect to the axial axis; a clamping device for positioning the component so that the cemented carbide bodies are vibrated in a vertical direction with respect to the axial axis; at least one heating device for heating of the component at the same time as vibrating the component.
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公开(公告)号：WO2022180225A2
公开(公告)日：2022-09-01
申请号：PCT/EP2022/054823
申请日：2022-02-25
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： JANSSON, Tomas , NORDBERG, Anders
IPC: E21B17/042
Abstract: A coupling for connecting downhole tubulars, comprising a tubular body; a female coupling part; a male coupling part; and at least one of: a male screw thread formed on an outer surface of the body, and a female screw thread formed in an inner surface of the body, wherein: the at least one thread has a thread-form including a crest, a root, and a pair of flanks, the crest and the root are each cambered about a respective first and second camber radius, Rb, Rb-T along the entire length of the thread-form, and each camber radius, Rb, Rb-T, is greater than an outer diameter of the coupling; the male screw thread has a camber radius, Rbm, and the female screw thread has a camber radius, Rbf; characterized in that: the ratio of the male thread camber radius to the female thread camber radius (Rbm/ Rbf) is between
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公开(公告)号：WO2022069652A1
公开(公告)日：2022-04-07
申请号：PCT/EP2021/076974
申请日：2021-09-30
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： KRAFT, Conny , JANSSON, Tomas
Abstract: A percussive drill bit comprising a sleeve section and bit section having a longitudinal axis; wherein the sleeve section has an axial end at the opposing end of the drill bit compared to the bit section from which a generally conically shaped internal cavity extends from for receiving a conically shaped drill rod to form a conical frictional connection; characterised in that: the internal cavity has a transition section extending between the axial end of the drill bit and the a straight tapered region; wherein the transition section has at a first curved region having a first radius,TR1, wherein its tangent, TT, to a central point along the first curved transition section is positioned at a first distance, TD1 from the axial end.
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公开(公告)号：WO2022002911A1
公开(公告)日：2022-01-06
申请号：PCT/EP2021/067808
申请日：2021-06-29
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： HAMMARGREN, John
IPC: E21B17/02 , E21B17/042 , E21B17/0426
Abstract: A female portion to form part of a thread joint for a percussive drilling tool comprising a mounting sleeve having an axial end, wherein the mounting sleeve surrounds an internal cavity having an axial inner wall at the opposing end of the mounting sleeve compared to the axial end; wherein the mounting sleeve has at least one substantially cylindrical internally threaded section having a length L1, a thread entrance towards the axial end and a thread exit towards the axial inner wall; a thread clearance section positioned between the axial inner wall and the thread exit having a length L2 and a diameter D1; a guiding section positioned between the thread entrance and the axial end of the sleeve having a length, L3; characterized in that: 0 mm
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Patent Agency Ranking
公开(公告)号：WO2021228981A1
公开(公告)日：2021-11-18
申请号：PCT/EP2021/062698
申请日：2021-05-12
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB , SANDVIK MINING AND CONSTRUCTION AUSTRALIA PTY LTD
Inventor： WEAVER, Steven , VALLATI, Osvaldo , RATAJ, Mietek
Abstract: A tension indication device (1) for a rock bolt (2) wherein the tension indication device (1) comprises a support washer (5), a cover member (6) with a central hole for receiving a trailing portion of the rock bolt (2), and an indicator substance (7) provided in a first space (8). The first space (8) is provided in the cover member (6) or in a recess in the support washer (5) for facing the nut (4). Upon rotation of the nut (4), indicator substance (7) is forced out of the first space (8) such that the indicator substance (7) is visible at inspection of the rock bolt (3), thereby indicating the rock bolt (3) has been tensioned.
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公开(公告)号：WO2021214105A1
公开(公告)日：2021-10-28
申请号：PCT/EP2021/060321
申请日：2021-04-21
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB , SANDVIK MINING AND CONSTRUCTION AUSTRALIA PTY LTD
Inventor： VALLATI, Osvaldo
IPC: E21D20/00
Abstract: A driver socket 1 for installation of a ground reinforcement bolt, wherein the driver socket comprises a rotation sensor 2 for measuring rotation of the driver socket 1, wherein the driver socket 1 comprises a processing unit 3 configured to receive a signal from the rotation sensor 2 and configured to derive, based on the signal from the rotation sensor 2, rotation data related to the number of revolutions the driver socket 1 has been rotated.
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公开(公告)号：WO2020249611A1
公开(公告)日：2020-12-17
申请号：PCT/EP2020/066081
申请日：2020-06-10
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： BJÖRK, Fredrik , NORMAN, Andreas , YASSERI, Ali
IPC: E21B10/36 , E21B17/042 , E21B17/10
Abstract: The present invention relates to a guide adapter (100) for guiding a drill bit during percusion drilling, said guide adapter is intended to be arranged between the drill bit and an elongated drill string extending along an axis A, said drill bit having a first radius (Rf) transverse to axis A. The guide adapter comprises: a sleeve shaped adapter body (101) intended to extend along axis A and comprising a forward end (102) with a first coupling (104) intended for connecting the guide adapter to the drill bit, and a rear end (103) with a second coupling (105) intended for connecting the guide adapter (100) to the drill string; and a plurality of guiding elements (106) extending substantially radially in relation to axis A from the sleeve shaped adapter body (101), wherein the guiding elements (106) extend along 60% or less of the adapter body length (L) along axis A and are arranged in the rear end (103) of the adapter body (101), said guiding elements (106) in the rear end (103) has an extension in radial direction from axis A substantially equal to said first radius (Rf) and curved, straight or stepwise reduced radial extension towards the forward end along axis A. The invention furthermore relates to a drill arrangement comprising the guide adapter.
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公开(公告)号：WO2020187575A1
公开(公告)日：2020-09-24
申请号：PCT/EP2020/055758
申请日：2020-03-05
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： JANSSON, Tomas , PETTERSSON, Mattias
IPC: E21B17/042
Abstract: A drill string rod (1) to form part of an assembly (10) of connected such drill string rods (1, 1b), the drill string rod (1) comprising: an elongate central rod portion (2) extending axially between a male end (3) and a female end (4), wherein the central rod portion (2) is hollow-cylindrical defined by an inner first diameter (drod) and an outer second diameter (Drod), wherein the male end (3) comprises a spigot (5),wherein the spigot (5) comprises a base (6) projecting axially from a shoulder (7) that axially separates the spigot (5) and the central rod portion (2), wherein the female end (4) comprises a sleeve portion (8) configured to fit to the spigot (5), wherein the base (6) is provided with an outer thread and wherein the sleeve portion (8) is provided with an inner thread, wherein the inner thread corresponds to the outer thread such that the inner thread of the sleeve portion (8) is attachable to the outer thread of the base (6) of the spigot (5) of a further drill string rod (1b) of the assembly (10), wherein, in a radial plane (P) to the longitudinal axis (9) of the drill string rod (1), the base (6) of the spigot (5) is defined by an outer third diameter (D spigot ) and an inner fourth diameter (d spigot ) and the sleeve portion (8) is defined by an outer fifth diameter (D sleeve ) and an inner sixth diameter (d sleeve ), wherein the second diameter (D rod ) is > 60 mm, and wherein the six diameters mentioned are selected within specific constraints.
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公开(公告)号：WO2020157163A1
公开(公告)日：2020-08-06
申请号：PCT/EP2020/052220
申请日：2020-01-30
Applicant: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Inventor： GHOLIOF, Hamidreza
Abstract: A guide adapter (1) for connection between a drill bit and a drill string or rod, said guide adapter (1) comprising an elongate shaft (2) extending along a longitudinal axis (3) of the guide adapter (1), wherein a front portion of the shaft (2) is provided with first connection means (4), and wherein a rear portion of the shaft (2) is provided with second connection means (5). The shaft (2) is provided with a plurality of radially extending wear inserts (6) distributed around the circumference of the shaft (2).
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