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EP1740796B1 - Dispositif pour maintenir un trepan a tige - Google Patents

Dispositif pour maintenir un trepan a tige Download PDF

Info

Publication number
EP1740796B1
EP1740796B1 EP05715895A EP05715895A EP1740796B1 EP 1740796 B1 EP1740796 B1 EP 1740796B1 EP 05715895 A EP05715895 A EP 05715895A EP 05715895 A EP05715895 A EP 05715895A EP 1740796 B1 EP1740796 B1 EP 1740796B1
Authority
EP
European Patent Office
Prior art keywords
pick
receptacle
base part
holder
extension
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.)
Not-in-force
Application number
EP05715895A
Other languages
German (de)
English (en)
Other versions
EP1740796A1 (fr
Inventor
Günter TEWES
Jochen Blens
Bernd Holl
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.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
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 Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1740796A1 publication Critical patent/EP1740796A1/fr
Application granted granted Critical
Publication of EP1740796B1 publication Critical patent/EP1740796B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/191—Means for fixing picks or holders for fixing holders

Definitions

  • the bit holder has a chisel holder for the shank bit, wherein the bit holder has a support surface on which the shank bit is supportable, wherein the chisel holder on the Base part is coupled by means of a pivot bearing, and wherein the bit holder rests by means of a contact surface against a mating surface of the base part.
  • Such a device is known from DE 297 11 566 U1 known.
  • the holding piece has a convexly curved contact surface.
  • the counter surface of the base part is correspondingly concave.
  • bit holder has a concave hinge portion which cooperates to form the pivot bearing with a convex, projecting towards the bit holder hinge portion of the base part, that the bit holder is displaced into the volume range of the base part inside, and that Chisel holder in the assembled state of the pivot bearing is set away by means of a fastening screw on the base part.
  • the swivel bearing in the assembled state of the chisel holder cuts the chisel holder of the chisel holder.
  • rotation axis the axis of rotation or the rotary path
  • a conceivable variant of the invention is such that the base part has a recessed receptacle, in which the bit holder engages with a holding section, and that the bit receptacle is arranged at least partially in the region of the recessed receptacle.
  • the support surface for the bit holder can be arranged in this manner close to the surface of a cutting roller on which the base part is usually mounted. Thus, even small cutting circle diameter can be generated. This is particularly advantageous for small milling machines in road construction operations.
  • the tool holder thereby has a simple design, which is also easy to manufacture, that the bit holder has a concave hinge portion which cooperates to form the pivot bearing with a convex hinge portion of the base part.
  • a compact design can be realized in particular even if a design is such that the bit holder has a holding portion which forms the chisel receptacle, and that laterally adjacent to the central longitudinal axis of the chisel receiving a shoulder is subsequently formed on the holding portion, which carries the joint portion and that on both sides of the retaining lug symmetrically to the median transverse plane of the bit receptacle each a lug is arranged, each having a hinge portion, wherein the two hinge portions form a common hinge axis.
  • the voltage-optimized tool design can be further improved by providing that the axis of rotation of the pivot bearing in the mounted state of the chisel holder cuts the central longitudinal axis of the chisel holder.
  • a preferred variant of the invention may be such that the base part has a fastening portion by means of which it can be mounted on a rotary body of a milling machine, that adjoins the attachment portion, a connecting lug, which carries the joint portion, and that the bit holder by means of a cover on the , the fastening portion facing away from the side at least partially covered.
  • the cover protects the base from wear by the abrasive material removed during the cutting / milling process.
  • a possible variant of the invention provides that the bit holder rests in the mounted state with a seat on a stop of the base part, that the bit holder to the seat, the pivot bearing facing away from a fixing with a screw that the fixing piece at a distance to a mounting lug of the base part is arranged, and that the bit holder is braced by means of a guided through the screw mounting screw with the attachment lug of the base part.
  • the spaced arrangement of the fixing piece to the pivot bearing forms a large fastening lever, which allows a secure fixing of the bit holder on the base part.
  • the base part in the region of the fastening lug has a receptacle in which a nut is received rotationally fixed, and in that the nut is aligned with an opening of the fastening lug and the screw receptacle of the fixing piece of the chisel holder.
  • the Mother can also be trained as a standard mother. In case of wear, the nut can be exchanged easily and quickly.
  • a base part 10 of a device for holding a shank bit 30 is shown.
  • the base part 10 has a fastening portion 10. 1 with an attachment surface 12.
  • the attachment surface 12 has a concave curved contour, wherein the curvature of a cylindrical outer contour of a milling drum (not shown) is adapted.
  • the base part 10 can be placed with the attachment surface 12 on the milling drum and connected to this, for example, welded.
  • the attachment portion 10 has a receptacle 13 in its rear area. This is open to the underside of the base part 10, so that they are easily manufactured, for. B. can be milled out.
  • the receptacle 13 is designed in its cross-sectional shape so that over the open back of the receptacle 13, a nut can be inserted.
  • the mother lies with its peripheral contour rotationally fixed in the receptacle 13.
  • the threaded receptacle of the nut is accessible through an opening 14 in a mounting lug 15 of the base member 10 therethrough.
  • the connecting lug 10.2 is closed with a convexly rounded front piece 11.
  • two plate-shaped connecting lugs 10.2 are formed on the attachment portion 10.1.
  • the connecting lugs 10.2 are spaced apart from each other in parallel and define a receptacle 10.3. This is thus deepened in the base part.
  • the connecting lugs 10.2 pass over a wall 16, starting from the attachment lug 15 in a convexly curved transition section 17.
  • the base part 10 has a stop 18.
  • the stopper 18 is in a hinge portion 19.2 with a convex outer contour over, which is formed as a counter surface 19. 1.
  • the hinge portion 19 has the shape of a partial cylinder, which extends in the present case over an arc of 180.
  • the joint section 19 merges with its mating surface 19. 2 via a concave indentation into the front piece 11.
  • a chisel holder 20 is shown, which can be attached to the above-described base part.
  • the bit holder 20 has a holding portion 22 into which a cylindrical bit receptacle 28 is inserted.
  • the bit holder 28 is unilaterally via an Einzhouweittation 28.1 in an annular support surface 26 via.
  • the support surface 26 rotates around the bit receptacle 28.
  • the bit receptacle 28 runs out in an expulsion opening 29.
  • the covers 21 each include a receptacle 23.
  • the receptacle 23 is limited in its front region by a part-cylindrical concave contact surface 23.4, wherein the curvature of the contact surface 23.4 on the Curvature of the mating surface 19.1 of the base part 10 is adjusted.
  • the bit holder 20 forms a joint section 23.1.
  • the contact surface 23.4 goes to the back of the chisel holder 20 out in a flat seat 23.2 and this in a slanted wall 23.3.
  • the wall 23.3 is formed by a fixing piece 24.
  • the fixing piece 24 of the bit holder 20 extends transversely to the central longitudinal axis of the bit holder 28 over the entire width of the bit holder 20.
  • a screw 27 is introduced in the fixing piece 24 in the fixing piece 24.
  • the Fig. 8 clearly recognizes limit the fixing piece 24 and a front-side bead 25 insertion through which the receptacles 23 are accessible.
  • the bit holder 20 is inserted with its retaining lug in the area between the connecting lugs 10.2 in the receptacle 13.
  • the connecting lugs 10.2 engage in the receptacles 23 until the hinge sections 19 and 23.1 come into engagement.
  • the hinge portions 19 and 23.1 form a pivot bearing about which the bit holder 20 can be pivoted relative to the base part 10.
  • the pivot axis passes through a point of symmetry.
  • the pivot axis intersects the central longitudinal axis of the bit receptacle 28.
  • the pivoting movement of the bit holder 20 is limited by means of the tapered wall 16 of the base part 10. At this the wall 23.3 of the chisel holder 20 strikes.
  • the bead 25 engages in the recess 19.1 of the base part 10.
  • the fixing piece 24 is at a distance from the attachment lug 15. Then a fastening screw can be passed through the screw holder 27 and the aligned breakthrough 14 and screwed into the nut held in the holder 13. Thus, the bit holder 20 is then fixed to the base part 10.
  • the screw head of the fastening screw is protected in a recess 27.1 recorded in the bit holder 20.
  • the dismantling of the bit holder 20 is carried out in accordance with the reverse order of assembly.
  • a shank bit 30 having a shank can be inserted into the bit receptacle 28.
  • the shank bit 30 is held by means of an applied on the shaft clamping sleeve in the bit holder 28 in a known manner, the shank bit 30 remains freely rotatable about its central longitudinal axis.
  • the shank bit 30 has a cutting head formed on the shank with a Möneispitze 32.
  • the chisel head is supported on the support surface 26 by means of a wear protection element formed as a perforated disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Knives (AREA)

Claims (10)

  1. Dispositif de fixation d'un trépan à queue (30) comprenant une partie de base (10) à laquelle est fixé, de manière remplaçable, un porte-trépan (20), le porte-trépan (20) présentant un logement de trépan (28) pour le trépan à queue (30), le porte-trépan (20) présentant une surface de support (26) sur laquelle le trépan à queue (30) peut être supporté, le porte-trépan (20) étant accouplé à la partie de base (10) au moyen d'un support sur palier pivotant, et le porte-trépan s'appliquant au moyen d'une surface de contact (23.1, 23.2, 23.3, 23.4) contre une surface conjuguée (19.1, 19.2) de la partie de base (10), caractérisé en ce que
    le porte-trépan (20) présente une portion articulée concave qui coopère, pour former le support sur palier pivotant, avec une portion articulée convexe de la partie de base (10) saillant dans la direction du porte-trépan (20),
    en ce que le logement de trépan (28) est déplacé vers l'intérieur jusque dans la région du volume de la partie de base (10), et
    en ce que le porte-trépan (20), dans l'état monté opposé au support sur palier pivotant, est fixé à la partie de base (10) au moyen d'une vis de fixation.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'axe de rotation ou la trajectoire de rotation (ci-après appelée pour simplifier "axe de rotation") du support sur palier pivotant coupe, dans l'état monté du porte-trépan (20), le logement de trépan (28) du porte-trépan (20).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que
    la partie de base (10) présente un logement renfoncé (10.3), dans lequel le porte-trépan (20) vient en prise avec une portion de retenue (22), et en ce que le logement de trépan (28) est disposé au moins en partie dans la région du logement renfoncé (10.3).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    le porte-trépan (20) présente une portion de retenue (22) qui forme le logement de trépan (28)
    et
    en ce qu'une pièce rapportée est façonnée sur la portion de retenue (22) en se raccordant latéralement transversalement à l'axe longitudinal du logement de trépan (28), laquelle pièce rapportée porte la portion articulée (23.1).
  5. Dispositif selon la revendication 4,
    caractérisé en ce que
    de part et d'autre de la portion de retenue (22) est à chaque fois disposée une pièce rapportée symétrique par rapport au plan médian transversal du logement de trépan (28), laquelle pièce rapportée présente à chaque fois une portion articulée (23.1), les deux portions articulées (23.1) formant un axe d'articulation commun.
  6. Dispositif selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    l'axe de rotation du support sur palier pivotant, dans l'état monté du porte-trépan (20), coupe l'axe médian longitudinal du logement de trépan (28).
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    la partie de base (10) présente une portion de fixation (10.1), au moyen de laquelle elle peut être montée sur un corps de rotation d'une fraise, en ce qu'une pièce rapportée de connexion (10.2) se raccorde à la portion de fixation (10.1), laquelle pièce rapportée de connexion porte la portion articulée (19), et
    en ce que le porte-trépan (20) recouvre au moins en partie la pièce rapportée de connexion (10.2) au moyen d'un recouvrement (21) sur le côté opposé à la portion de fixation (10.1).
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    le porte-trépan (20), dans l'état monté, s'applique avec une surface de siège (23.2) contre une butée (18) de la partie de base (10),
    en ce que le porte-trépan (20) présente un organe de fixation (24) avec un logement de vis (27) à l'opposé du support sur palier pivotant, se raccordant à la surface de siège (23.2),
    en ce que l'organe de fixation (24) est disposé à distance d'une pièce rapportée de fixation (15) de la partie de base (10), et
    en ce que le porte-trépan (20) est serré au moyen de la vis de fixation guidée à travers le logement de vis (27) avec la pièce rapportée de fixation (15) de la partie de base (10).
  9. Dispositif de fixation selon la revendication 8,
    caractérisé en ce que
    la partie de base (10) présente, dans la région de la pièce rapportée de fixation (15), un logement (13) dans lequel est reçu, de manière solidaire en rotation, un écrou, et en ce que l'écrou est en affleurement avec un orifice (14) de la pièce rapportée de fixation (15) et du logement de vis (27) de l'organe de fixation (24) du porte-trépan (20).
  10. Dispositif de fixation selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    le porte-trépan (20) présente une surface d'appui (26) tout autour du logement de trépan (28), sur laquelle s'appuie, directement ou par le biais d'un élément de protection contre l'usure (31), un trépan à queue (30), et en ce que le support sur palier pivotant est disposé dans la région de la moitié du logement de trépan (28) tournée vers la surface d'appui (26).
EP05715895A 2004-04-19 2005-03-10 Dispositif pour maintenir un trepan a tige Not-in-force EP1740796B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004019383A DE102004019383B4 (de) 2004-04-19 2004-04-19 Vorrichtung zur Halterung eines Schaftmeißels
PCT/EP2005/002513 WO2005100748A1 (fr) 2004-04-19 2005-03-10 Dispositif pour maintenir un trepan a tige

Publications (2)

Publication Number Publication Date
EP1740796A1 EP1740796A1 (fr) 2007-01-10
EP1740796B1 true EP1740796B1 (fr) 2012-04-11

Family

ID=34962449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05715895A Not-in-force EP1740796B1 (fr) 2004-04-19 2005-03-10 Dispositif pour maintenir un trepan a tige

Country Status (6)

Country Link
US (1) US7547075B2 (fr)
EP (1) EP1740796B1 (fr)
CN (1) CN1942654B (fr)
AT (1) ATE553282T1 (fr)
DE (1) DE102004019383B4 (fr)
WO (1) WO2005100748A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017104651A1 (de) 2017-03-06 2018-09-06 POWER-TECHNOLOGIE GmbH Fräswalze und Verfahren zum Fräsen
DE102017117455A1 (de) 2017-08-02 2019-02-07 POWER-TECHNOLOGIE GmbH Fräswalze und Verfahren zum Fräsen

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DE102004057302B4 (de) * 2004-11-26 2011-01-13 Wirtgen Gmbh Meißelhalter
JP2008540875A (ja) * 2005-05-13 2008-11-20 グラウンド アソールト ツールズ ピーティーワイ エルティーディー 切断工具保持具及び使用方法
DE102008025071A1 (de) * 2008-05-26 2009-12-03 Wirtgen Gmbh Werkzeug zur Demontage eines Meißels
KR101022348B1 (ko) 2009-08-28 2011-03-22 삼보중공업(주) 노면 파쇄기용 공구 홀더 장치의 재생방법
DE102010038016C5 (de) * 2010-10-06 2020-07-23 Wirtgen Gmbh Mischersteg für einen Stabilisierer/Recycler
US9151157B2 (en) 2010-12-03 2015-10-06 Wirtgen Gmbh Chisel holder
SG190927A1 (en) 2010-12-03 2013-07-31 Wirtgen Gmbh Chisel holder, and chisel holder system comprising a chisel holder and a base part
CN202705874U (zh) 2010-12-03 2013-01-30 维特根有限公司 刀架
DE102010061019A1 (de) 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Meißelhalter und Werkzeugunterteil für einen Meißelhalter
RU2567256C2 (ru) 2010-12-03 2015-11-10 Виртген Гмбх Резцедержатель и система резцедержателя с резцедержателем и корпусом
US8740314B2 (en) * 2011-01-11 2014-06-03 Joy Mm Delaware, Inc. Bit holding system with an opening for removal of broken bits
USD667855S1 (en) 2011-04-11 2012-09-25 Betek Gmbh & Co. Kg Base for a chisel holder
USD667854S1 (en) 2011-04-11 2012-09-25 Betek Gmbh & Co. Kg Chisel holder
USD666642S1 (en) 2011-07-04 2012-09-04 Wirtgen Gmbh Chisel holder
DE102011051525A1 (de) 2011-07-04 2013-01-10 Wirtgen Gmbh Meißelhalter für eine Bodenbearbeitungsmaschine
USD669505S1 (en) * 2011-11-23 2012-10-23 Wirtgen Gmbh Chisel holder bar
WO2015134559A1 (fr) 2014-03-07 2015-09-11 Vermeer Manufacturing Company Appareil de montage remplaçable pour des éléments réducteurs
USD746340S1 (en) 2014-04-11 2015-12-29 Vermeer Manufacturing Company Mounting block for reducing elements
USD746878S1 (en) 2014-04-11 2016-01-05 Vermeer Manufacturing Company Mounting block for reducing elements
NL2015785B1 (en) * 2015-11-13 2017-06-02 Ihc Holland Ie Bv Adapter system for cutting tooth.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017104651A1 (de) 2017-03-06 2018-09-06 POWER-TECHNOLOGIE GmbH Fräswalze und Verfahren zum Fräsen
DE102017117455A1 (de) 2017-08-02 2019-02-07 POWER-TECHNOLOGIE GmbH Fräswalze und Verfahren zum Fräsen

Also Published As

Publication number Publication date
CN1942654A (zh) 2007-04-04
CN1942654B (zh) 2011-11-02
EP1740796A1 (fr) 2007-01-10
US20070241605A1 (en) 2007-10-18
DE102004019383B4 (de) 2008-06-12
ATE553282T1 (de) 2012-04-15
DE102004019383A1 (de) 2005-11-10
WO2005100748A1 (fr) 2005-10-27
US7547075B2 (en) 2009-06-16

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