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EP0065284B1 - Alésoir - Google Patents

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Publication number
EP0065284B1
EP0065284B1 EP82104184A EP82104184A EP0065284B1 EP 0065284 B1 EP0065284 B1 EP 0065284B1 EP 82104184 A EP82104184 A EP 82104184A EP 82104184 A EP82104184 A EP 82104184A EP 0065284 B1 EP0065284 B1 EP 0065284B1
Authority
EP
European Patent Office
Prior art keywords
carrier housing
cutting
housing
rocking lever
pivot pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82104184A
Other languages
German (de)
English (en)
Other versions
EP0065284A1 (fr
Inventor
Alfred Ostertag
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norton Co filed Critical Norton Co
Priority to AT82104184T priority Critical patent/ATE14775T1/de
Publication of EP0065284A1 publication Critical patent/EP0065284A1/fr
Application granted granted Critical
Publication of EP0065284B1 publication Critical patent/EP0065284B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/327—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools the cutter being pivoted about a longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/83—Tool-support with means to move Tool relative to tool-support
    • Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
    • Y10T408/858—Moving means including wedge, screw or cam
    • Y10T408/8588—Axially slidable moving-means
    • Y10T408/85884—Tool pivotally mounted on support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/12—Radially moving rotating tool inside bore
    • Y10T82/125—Tool simultaneously moving axially
    • Y10T82/128—Pivoted to tool-carrier

Definitions

  • the invention relates to a device for undercutting spaces in cylindrical boreholes, in particular those in artificial and natural rock, according to the preamble of claim 1.
  • Boreholes drilled in more or less homogeneous materials provide a borehole wall parallel to the borehole axis, which is undesirable in numerous applications. This applies e.g. B. especially for anchor holes in artificial rock, e.g. B. Concrete in which any anchoring means are to be defined. It is therefore often desirable in all possible types of boreholes to provide undercuts in the borehole wall, in order to improve the fixing of anchoring means in the borehole, as in the case of anchor holes, or to create extensions for other purposes.
  • a transverse and a truncated cone cutting surface with vertically aligned cutting surfaces are located on the outer surfaces of a plurality of swivel levers, which are pivotably mounted about vertical axes of the tool housing.
  • the swivel levers are provided with vertical bores, which are penetrated by axle pins anchored in the housing above and below the swivel levers. In order to move the cutting surfaces into their working position and back into their rest position, the swivel levers can be swiveled outwards and inwards by means of the adjusting device.
  • a hand-operated drilling tool which serves to widen the inner area of blast holes for mining purposes.
  • This tool comprises a cylindrical housing which fills the cross-sectional contour of the borehole, from the end of which a swivel shaft mounted eccentrically to the housing axis emerges.
  • a pivotable cutting member is attached, which can be spatially engaged with the gesture information from outside the borehole by actuating the pivot shaft and can be pivoted into the housing cross-sectional contour.
  • the invention has for its object to provide a device of the type specified in the preamble of claim 1, which enables simple and quick replacement of the broaching tools with low production costs while maintaining small structural dimensions, a robust construction and a high broaching capacity.
  • the design of the device according to the invention enables a simple insertion and removal of the broaching tools into and out of the storage pockets, which can only be carried out with one hand.
  • the broaching tools When installed, the broaching tools are supported so that no tilting moments are exerted on them during operation. This considerably simplifies and reduces the construction effort and considerably reduces the wear and the sensitivity of the device.
  • the invention can also be carried out in the case of devices which are to be used for clearing boreholes with only relatively small diameters or cross-sectional dimensions.
  • the device By guiding the broaching tools over the entire infeed area, the device enables the formation of very exact contours for the areas of the borehole to be cleared, while furthermore the actuation of the broaching tools is considerably simplified, since these only experience their infeed movement through the adjusting device and back in for their return movement the contour of the carrier housing does not need its own reset drive. Rather, the broaching tools carry out an independent restoring movement in cooperation with the borehole wall as soon as the actuating device is no longer fed.
  • the device consists of a tubular support housing 1, the outer diameter of which is slightly less than that of a borehole in which clearing work is to be carried out.
  • the carrier housing 1 is provided with a connecting shaft 2, which in a drive, for. B. the drive for a drill, as it was used to create the borehole, can be used.
  • This drive is indicated schematically at 3.
  • Broaching tools 4 are accommodated in the carrier housing 1 and, for reasons of balancing forces, are arranged in a uniform central angle distribution over the circumference of the carrier housing 1 and at the same time are axially offset.
  • only one broaching tool 4 is provided within the same circumferential plane of the carrier housing 1, but it is understood that even within the same circumferential plane, i. H. Located at the same axial height, several broaching tools can also be assigned to the carrier housing 1 if the dimensional relationships allow this.
  • the broaching tools 4 can be moved outwards from a rest position within the cross-sectional contour of the carrier housing into a working position during a working rotary movement in the direction of the arrow 5 of the carrier housing 1, and an adjusting device 6 arranged in the carrier housing 1 is provided for the outward feed movement of the broaching tools 4 can be actuated by means of an actuating device 7 from a region outside the borehole 8.
  • each broaching tool comprises a carrier 9 and a cutting member 10 supported by this.
  • the carrier 9 is as. Trailing element formed, which is supported in a plane of movement intersecting with the carrier housing 1 and displaceable in and out in the carrier housing 1.
  • the plane of movement for the towing element 9 intersects the longitudinal central axis 11 of the carrier housing 1 at a right angle, but the plane of movement for the towing element 9 can also intersect the longitudinal central axis 11 of the carrier housing 1 at an angle slightly different from 90 °.
  • the towing member is formed in the preferred embodiments shown by a pivotally mounted in the carrier housing 1 rigid, in its plane of motion extending over part of the circumference of the carrier housing 1 pivot lever 9, however, a torsion spring can also be provided as a towing member, the leading in the direction of rotation 5 End can be firmly connected to the carrier housing 1 in the sense of a clamping.
  • the towing member executes a displacement movement similar to a pivoting movement relative to the carrier housing 1 with elastic material deformation at least in a partial region of its length.
  • a pivot axis or a pivot axis region defining a pivot axis or a pivot axis region can be provided between the latter and the carrier housing 1, on the one hand firmly with the carrier housing 1 and on the other hand with the end of the pivot lever 1 leading in the direction of rotation 5 of the carrier housing 1 9 can be connected.
  • Versions with a spiral spring as a trailing element or with a spiral spring piece as part of a trailing element comprising a rigid pivoting lever require a fixed connection to the carrier housing 1.
  • pivot bearing can, for. B. be formed by a more or less axially directed bore in the carrier housing 1, in which a cylindrical pivot pin on the pivot lever 9 engages.
  • the swivel lever 9 of each broaching tool 4 is provided at its end leading in the working direction 5 of the carrier housing 1 with an articulated pin 12 projecting on both sides in the axial direction and with this in one of the outer circumference of the carrier housing 1 open, stored in this countersunk storage pocket 13 which is adjacent to an open circumferential slot 14 leading axially on both sides of the pivot lever 9.
  • the pivot pin 12 has a substantially angular cross-sectional shape in the example shown, and the bearing pocket 13 also has a substantially angular cross-sectional contour with dimensions which exceed those of the pivot pin 12, so that the pivot pin 12 can be inserted into its bearing pocket 13 easily from the outside is and in the storage pocket 13 has a movement that leaves him pivoting movements in his plane of movement.
  • the bearing pocket 13 On its side looking in the working direction of rotation 5, the bearing pocket 13 has a bearing and driving surface 15 which, when the device is in operation, exerts a reaction force on the pivot pin 12 of the pivot lever 9 with a vector pointing inwards with respect to the carrier housing 1, indicated at 16 . In the case of a flat bearing and driving surface 15, this can be brought about by the fact that this is inclined by a small acute angle in the working direction of rotation 5 with respect to an imaginary radial plane through its inner edge.
  • the pivot pin 12 can deviate from its cross-sectional shape shown also comprise a cylindrical bearing area, in which case the bearing and driving surface of the Storage pocket 13 in turn comprises a partially cylindrical bearing shell.
  • the pivot pin 12 has on its outside a restoring surface area 17 which changes its radial distance from the longitudinal central axis 11 of the carrier housing 1 when the pivoting lever 9 is pivoted.
  • a holding spring 18 is provided in the illustrated embodiment, which as a ring or ring segment-shaped spring body and here as z. B. rubber ring spring is formed.
  • the retaining spring 18 is arranged and fixed in a circumferential groove 19 of the carrier housing 1 which intersects with the bearing pocket 13.
  • the cutting member 10 is advantageously designed as a multiple or multiple-cutting body, which has a trailing end over the circumferential outer surface of the carrier housing 1 in the working direction 5 of the pivot lever 9 projecting, facing the borehole wall 8, approximately in the working direction 5 running arcuate outer cutting surface 20 with transverse to the working direction 5 cutting or cutting edges.
  • a multiple-edge body can be formed from a part with diamonds on the surface or from a molded body from a diamond or the like. Matrix penetrated by hard material particles.
  • the curvature of the arcuate outer cutting surface 20 is advantageously equal to or smaller than the curvature of the wall of the un-cleared borehole 8, so that in the course of the broaching work the outer cutting surface 20 is as uniform as possible over its entire length in working engagement with the clearing material arrives.
  • the surface area of the outer cutting surface 20 which is effectively in working engagement with the material to be cleared is displaced, for example. B., as illustrated in FIG. 6, from the front to the rear part of the cutting member 10 in the working direction 5.
  • the arc shape of the outer cutting surface 20 is a segment of a circular arc with the radius r, this radius r is smaller than the radius r uncleaned borehole wall 8 and accordingly also smaller than the radius r 2 of the borehole wall 8 'in the clearing area.
  • the cutting member 10 advantageously comprises at least one side cutting surface which can also be used in the axial direction of the borehole 8, in particular if the device is to be used by means of an axial movement of the rotating carrier housing 1 to create clearing areas which are larger in their axial width than the axial width of the cutting members 10.
  • both side surfaces of the cutting member 10, which face in the axial direction advantageously form side cutting surfaces, which is given by itself in the case of cutting members 10 made of a molded body made of a matrix interspersed with diamonds or the like.
  • the cutting member 10 firmly connected to the pivot lever 9 this can also be designed as a single-cutting body, in which the end face looking into the working direction 5 of the carrier housing 1 forms the cutting edge with its contour line projecting beyond the outer circumferential surface of the pivot lever 9.
  • the single cutting edge body has outer and side surfaces adjoining the working direction 5 at a clearance angle on the front side.
  • the cutting element 10 When the cutting element 10 is designed as a multiple or multiple cutting element, the cutting element can also be supported on the pivoting lever by means of a supporting body 21 such that it can be pivoted to a limited extent about a tilt axis 22 oriented perpendicular to the plane of movement of the pivoting lever 9, as is schematically indicated in FIG. 7.
  • the curvature of the outer cutting surface 20 of the cutting member 10 is advantageously greater than the curvature of the wall of the uncleaned borehole 8 and smaller than the curvature of the borehole wall 8 'in a finished clearing area, and in the case of a circular shape of the outer cutting surface 20 with the Radius r is accordingly this radius larger than the radius r 1 of the wall of the borehole 8 and smaller than the radius r 2 of the borehole wall 8 '.
  • the tilt axis 22 in the working direction 5 of the carrier housing 1 is expediently arranged in the rear region and near the cutting member 10 in the support body 21.
  • the actuating device 6 consists of an actuating rod arranged axially displaceable and lockable in the carrier housing 1, which is provided for each broaching tool 4 with a wedge-shaped or conical cam surface 23 for the advancing movement of the pivot lever 9.
  • a screw drive is provided which has a first bush 25, which is coaxially rotatably mounted on the carrier housing 1 by means of a bearing 24, with an external thread 26 and a second bush 27, which in turn is rotatably supported coaxially on the carrier housing 1 via a bearing 28 and with an internal thread 29 can be screwed onto the first bush 25.
  • the bearing 28 is axially displaceable along the carrier housing 1 and at the same time forms a lower support for a spacer ring 30, on the top of which two radial, diametrically arranged driving pins 31 are supported. These pass through axial slots 32 in the carrier housing 1 and engage in blind holes 33 in the actuating rod 6. Between the carrier housing 1 and the actuating rod 6, a compression spring 34 is arranged, which is supported on the one hand on an inner shoulder 35 of the carrier housing 1 and on the other hand on an outer collar 36 on the actuating rod 6, the actuating rod 6 in FIG. 2 in the downward direction to move relative to the carrier housing 1.
  • Radial bolts 38 can be inserted into radial bores 37 of the lower bush 25, by means of which the lower bush 25 and with this the upper bush 27 can be prevented from performing a circumferential movement when the carrier housing 1 rotates.
  • the upper bushing 27 also has radial bores 39, into which radial bolts 40 can also be inserted. With the help of these radial bolts 40, the upper bushing 27 can be rotated relative to the lower bushing 25 and thereby screw-adjusted in the axial direction, independently of a rotation of the carrier housing 1. With the aid of this screwing, the adjusting rod 6 in FIG. 2 is either relative to the carrier housing 1 axially displaceable in order to impart the feed movement to the broaching tools 4, or displaceable downwards to release the broaching tools 4 for a return movement back into the contour of the carrier housing 1 after clearing.
  • the device with broaching tools 4 lying within the contour of the carrier housing 1 is inserted into the borehole 8 and, as soon as the broaching tools 4 lie opposite areas in the borehole 8, is rotated by the drive 3.
  • the drive 3 By then axiaies shifting the actuating rod 6 from its position shown in Fig. 2 in the upward direction, its cam surfaces 23 now progressively press on corresponding inner counter surfaces 9 'of the pivoting lever 9 of the broaching tools 4, which accordingly carry out a pivoting outward displacement in their plane of movement and progressively along with them the wall of the borehole come into operational engagement.
  • an undercut area formed by broaching is symbolized, as can be generated by an axial advance of the carrier housing 1 in connection with a return movement of the broaching tools 4.
  • the actuating rod 6 in FIG. 2 is moved downwards relative to the carrier housing 1, whereby the pivot levers 9 are progressively released via the cam surfaces 23 for an inward return movement which they cause on the cutting members 10 due to the reaction of the wall of the borehole 8 perform automatically, unless they are prevented by the cam surfaces 23 of the actuating rod 6.
  • broaching tools 4 can return to their rest position within the contour of the carrier housing 1.
  • the cutting members 10 can be inspected and, in the event of wear or damage that has occurred, the broaching tools 4 as a whole can be removed from their storage pocket 13 in one movement and replaced with new or different broaching tools 4.
  • the simple interchangeability of broaching tools 4 is an extremely important advantage in practice, since not only used broaching tools 4 can be replaced quickly and easily, but there is also the possibility of replacing broaching tools of one type with those of another type, provided that other shapes need to be broached Areas should be created.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Milling Processes (AREA)

Claims (12)

1. Dispositif pour aléser en affouillement des trous de forage cylindriques, en particulier des trous forés dans de la pierre artificielle et de la pierre naturelle, constitué d'un fût de support tubulaire (1) pouvant être entraîné en rotation au moyen d'un mécanisme d'entraînement (3) et destiné à au moins un outil aléseur (4) qui, à titre de support pour un organe de coupe (10), comprend un levier pivotant (9) qui s'étend sur une partie de la périphérie du fût de support (1) et qui, à son extrémité d'amont dans le sens de rotation de travail (5) du fût de support (1), peut pivoter autour d'un axe de pivotement défini par un tourillon (12) dans le fût de support (1) parallèle à l'axe longitudinal central (11) du fût de support (1) et qui peut être déplacé à partir d'une position de repos située dans les limites du contour de la section transversale du fût de support (1) vers l'extérieur dans une position de travail, dans laquelle l'organe de coupe (10) fait saillie au-delà du contour de la section transversale du fût de support (1) et peut être ramené dans sa position de repos, étant entendu que pour le déplacement de réglage de l'outil aléseur (4) orienté vers l'extérieur, un dispositif de positionnement (6) monté dans le fût de support (1) et pouvant être actionné à partir d'un endroit situé à l'extérieur du trou de forage (8) est prévu, caractérisé en ce que le levier pivotant (9) de l'outil aléseur (4) forme avec le tourillon (12) un élément de construction séparé et est monté à pivot par le tourillon (12) dans un logement de tourillonnement (13) qui s'ouvre vers la périphérie du fût de support (1), qui est creusé dans celui-ci et qui est adjacent à une fente circonférentielle ouverte (14) du fût de support (1) qui guide le levier pivotant (9) axialement.
2. Dispositif suivant la revendication 1, caractérisé en ce que le logement de tourillonnement (13) reçoit dans le fût de support (1) le tourillon (12) du levier pivotant (9) avec un jeu garantissant une possibilité d'installation de l'extérieur.
3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que le logement de tourillonnement (13) présente, du côté tourné dans le sens de rotation de travail (5) du fût de support (1 une surface d'appui et d'entraînement (15) qui, lorsque le dispositif est en service, exerce sur le tourillon (12) du levier pivotant (9) une force de réaction présentant un vecteur (16) orienté vers l'intérieur par rapport au fût de support (1).
4. Dispositif suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que le tourillon (12) du levier pivotant (9) présente une zone de surface de rappel (17) qui, lors d'un mouvement de pivotement du levier pivotant (9), modifie la distance radiale qui le sépare de l'axe longitudinal central (11) du fût de support (1).
5. Dispositif suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que le tourillon (12) est maintenu dans son logement de tourillonnement (13) du fût de support (1) au moyen d'un ressort de retenue (18) qui agit de l'extérieur sur la zone de surface de rappel (17) du tourillon (12).
6. Dispositif suivant la revendication 5, caractérisé en ce qu'à titre de ressort de retenue, au moins un corps en forme d'anneau ou de segment d'anneau faisant office de ressort (18) est prévu et est installé et fixé dans une gorge circonférentielle (19) du fût de support (1) qui coupe le logement de tourillonnement (13).
7. Dispositif suivant l'une quelconque des revendications 1 à 6, caractérisé en ce que l'organe de coupe (10) a la forme d'un corps à tranchants multiples connu et présente une surface de coupe externe courbe (20) qui s'étend à peu près dans le sens de rotation de travail, qui est tournée vers la paroi du trou de forage et qui fait saillie au-delà de la surface du côté périphérique externe de l'extrémité du levier pivotant (9) situé en aval dans le sens de rotation de travail (5) du fût de support (1), avec des arêtes de coupe orientées perpendiculairement au sens de rotation de travail (5).
8. Dispositif suivant la revendication 7, caractérisé en ce que l'organe de coupe (10) présente au moins une surface de coupe latérale pouvant être utilisée dans le sens axial du trou de forage (8).
9. Dispositif suivant l'une quelconque des revendications 1 à 8, caractérisé en ce que l'organe de coupe (10) a la forme d'un corps à tranchant simple, possède une surface d'about orientée dans le sens de rotation de travail (5) du fût de support (1) dont la ligne de contour qui fait saillie au-delà de la surface périphérique externe du levier pivotant (9) forme l'arête de coupe, et présente des surfaces extérieures et latérales qui se raccordent sous un angle de dépouille du côté d'about opposé au sens de rotation de travail (5).
10. Dispositif suivant l'une quelconque des revendications 7 à 9, caractérisé en ce que l'organe de coupe (10) a la forme d'un élément de coupe dont la surface est garnie de diamants.
11. Dispositif suivant la revendication 7, caractérisé en ce que l'organe de coupe (10) est monté au moyen d'un corps de support (21) sur le levier pivotant (9) et peut pivoter d'un angle limité autour d'un axe de basculement (22) orienté perpendiculairement au plan de mouvement du levier pivotant (9), qui est disposé dans le sens de rotation de travail (5) du fût de support (1) dans la zone postérieure et au voisinage de l'organe de coupe (10) dans le corps de support (21).
12. Dispositif suivant l'une quelconque des revendications 1 à 11, caractérisé en ce qu'à titre de dispositif de positionnement (6) est prévue une barre de positionnement montée dans le fût de support (1) de manière à pouvoir être déplacée axialement et fixée et présentant des surfaces de came cunéiformes ou coniques (23) pour le mouvement de réglage du levier pivotant (9).
EP82104184A 1981-05-16 1982-05-13 Alésoir Expired EP0065284B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82104184T ATE14775T1 (de) 1981-05-16 1982-05-13 Raeumvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3119605 1981-05-16
DE3119605A DE3119605C2 (de) 1981-05-16 1981-05-16 Vorrichtung zum unterschneidenden Räumen von zylindrischen Bohrlöchern

Publications (2)

Publication Number Publication Date
EP0065284A1 EP0065284A1 (fr) 1982-11-24
EP0065284B1 true EP0065284B1 (fr) 1985-08-07

Family

ID=6132534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104184A Expired EP0065284B1 (fr) 1981-05-16 1982-05-13 Alésoir

Country Status (5)

Country Link
US (1) US4497383A (fr)
EP (1) EP0065284B1 (fr)
AT (1) ATE14775T1 (fr)
CA (1) CA1182311A (fr)
DE (1) DE3119605C2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1105598A1 (ru) * 1982-05-11 1984-07-30 Туркменский Научно-Исследовательский Геологоразведочный Институт Буровой инструмент
DE3412198A1 (de) * 1984-04-02 1985-10-10 Witte Bohrtechnik GmbH, 3060 Stadthagen Verfahren und vorrichtung zum gesteuerten unterirdischen vortrieb von rohren im unbegehbaren durchmesserbereich
DE3714837A1 (de) * 1987-05-05 1988-11-24 Duss Maschf Rotierbares werkzeug zur herstellung einer hinterschneidung in einem bohrloch
US4874046A (en) * 1988-04-01 1989-10-17 Hurd Marvin G Groove cutter for concrete bores
JP2598515B2 (ja) * 1989-04-24 1997-04-09 株式会社ミヤナガ 拡径部付孔穿孔装置
JPH11129104A (ja) * 1997-10-28 1999-05-18 Honda Motor Co Ltd リーマーおよびその使用方法
US7350596B1 (en) 2006-08-10 2008-04-01 Attaya James S Methods and apparatus for expanding the diameter of a borehole
US8122978B1 (en) 2009-05-05 2012-02-28 John Clifford Drilling device with undercutting
US20110110736A1 (en) * 2009-08-11 2011-05-12 Robert Cousineau Seismic tool assembly for use in anchor insertion
US20120051859A1 (en) * 2010-08-27 2012-03-01 Robert Cousineau Seismic tool assembly for use in anchor insertion
US9388638B2 (en) * 2012-03-30 2016-07-12 Baker Hughes Incorporated Expandable reamers having sliding and rotating expandable blades, and related methods
DE102013208027A1 (de) * 2013-05-02 2014-11-06 Artis Gmbh Verfahren und vorrichtung zum einstellen auf eine motorspindel einer werkzeugmaschine aufgespannter einstellbarer werkzeuge
CN113863318B (zh) * 2021-10-13 2022-11-22 福建金鼎建筑发展有限公司 一种钻孔灌注桩基坑支护结构
CN119388586B (zh) * 2024-09-03 2025-06-17 中国科学院力学研究所 一种柔性切割杆、锚杆及隧道锚杆施工方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US566668A (en) * 1896-08-25 Boiler-tube cutter
US165787A (en) * 1875-07-20 Improvement in expansion-drills
US1007330A (en) * 1910-08-15 1911-10-31 Jack L Browder Boiler-tube cutter.
US1427609A (en) * 1920-11-11 1922-08-29 Albert L Mcdonald Mining tool
US1485642A (en) * 1922-04-11 1924-03-04 Diamond Drill Contracting Comp Expanding rotary reamer
US1720942A (en) * 1928-01-19 1929-07-16 Grant John Rotary expansive tool
US1880216A (en) * 1928-06-08 1932-10-04 Richard P Simmons Underreamer for well drilling apparatus
FR707725A (fr) * 1930-03-18 1931-07-11 Perfectionnements aux moyens pour l'exécution de forages pour scellements à base élargie
US2152008A (en) * 1933-11-24 1939-03-28 Baash Ross Tool Co Casing perforator
US2243131A (en) * 1940-01-10 1941-05-27 Emsco Derrick & Equip Co Hold-down bearing for rotary
US2280769A (en) * 1940-02-12 1942-04-21 John S Page Casing cutter
GB550100A (en) * 1941-05-16 1942-12-23 Alexander Zussman Orkin Improvements in or relating to drills for mixed excavation
US2621898A (en) * 1948-11-16 1952-12-16 Janes G Brodhead Underreamer
US3180439A (en) * 1962-01-08 1965-04-27 Carroll L Deely Rotary, expansible bore hole reamers with improved safety features
US3283405A (en) * 1964-02-05 1966-11-08 Samuel P Braswell Inside pipe cutting tool
AT297609B (de) * 1968-11-25 1972-04-10 Navenby Ltd Bohrgerät
GB1554730A (en) * 1975-12-29 1979-10-31 Macdonald Pneumatic Tools Apparatus for undercutting a drill hole
GB1586163A (en) * 1976-07-06 1981-03-18 Macdonald Pneumatic Tools Fluid operated undercutter
DE2928555A1 (de) * 1979-07-14 1981-01-29 Stumpp & Kurz Bohrwerkzeug
DE3020143A1 (de) * 1980-05-27 1981-12-03 Stumpp + Kurz Gmbh + Co, 7000 Stuttgart Bohrwerkzeug zum herstellen einer konischen erweiterung in einer grundbohrung

Also Published As

Publication number Publication date
US4497383A (en) 1985-02-05
DE3119605C2 (de) 1986-07-10
EP0065284A1 (fr) 1982-11-24
ATE14775T1 (de) 1985-08-15
CA1182311A (fr) 1985-02-12
DE3119605A1 (de) 1982-12-09

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