EP1740796A1 - Vorrichtung zur halterung eines schaftmeissels - Google Patents
Vorrichtung zur halterung eines schaftmeisselsInfo
- Publication number
- EP1740796A1 EP1740796A1 EP05715895A EP05715895A EP1740796A1 EP 1740796 A1 EP1740796 A1 EP 1740796A1 EP 05715895 A EP05715895 A EP 05715895A EP 05715895 A EP05715895 A EP 05715895A EP 1740796 A1 EP1740796 A1 EP 1740796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chisel
- holder
- base part
- chisel holder
- receptacle
- 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.)
- Granted
Links
- 238000003801 milling Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 abstract 2
- 238000005520 cutting process Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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 invention relates to a device for holding a shaft chisel with a base part on which a chisel holder is interchangeably fastened, the chisel holder having a chisel holder for the shaft chisel, the chisel holder having a support surface on which the shaft chisel can be supported, the chisel holder being attached to the Base part is coupled by means of a pivot bearing, and wherein the bit holder rests on a counter surface of the base part by means of a contact surface.
- the base part has a recessed receptacle into which the chisel holder is inserted with a holding piece.
- the holding piece has a convexly curved contact surface.
- the counter surface of the base part is correspondingly concave. With the contact and the counter surface there is a swivel bearing. This enables the chisel holder to be mounted, whereby it is pivoted into the receptacle and slides along the contact surface on the counter surface.
- the bit holder protrudes from the receptacle with an attachment.
- This approach has a chisel holder in which a shaft chisel can be installed.
- the shank chisel is supported on an annular support surface that runs around the chisel holder.
- the forces from the shank chisel are introduced into the support surface during tool use. Starting from the support surface, the forces are then transferred into the base part via the contact surface and the counter surface.
- a curved contour of the contact surface protrudes towards the bit holder on the base part.
- This enables the support surface of the bit holder to be brought close to the contact area formed between the contact surface and the counter surface.
- the tensions in the chisel holder can be significantly reduced during use of the tool, and the service life of the chisel holder can be extended.
- the axis of rotation or the axis of rotation (hereinafter collectively referred to as "axis of rotation") of the pivot bearing intersects the bit holder of the bit holder in the assembled state of the bit holder.
- the chisel holder is moved into the volume area of the base part.
- this enables a compact design.
- the forces can be introduced directly into the base part, which leads to a noticeable reduction in tension.
- a conceivable variant of the invention is such that the base part has a recessed receptacle into which the bit holder engages with a holding section, and that the bit holder is at least partially arranged in the region of the recessed receptacle.
- the support surface for the bit holder can be arranged close to the surface of a cutting roller on which the base part is usually mounted. This means that even small cutting circle diameters can be created. This is particularly advantageous for small milling machines used in road construction.
- the tool holder has a simple design, in particular, which is also easy to manufacture if it is provided that the chisel holder has a concave joint section which cooperates with a convex joint section of the base part to form the pivot bearing.
- a compact design can also be achieved in particular if the design is such that the chisel holder has a holding section that forms the chisel holder, and that an attachment laterally to the holding section transversely to the central longitudinal axis of the chisel holder is integrally formed, which carries the joint section and that on both sides of the retaining attachment symmetrically to the central transverse plane of the chisel receptacle, an attachment is arranged, each having an articulated section, the two articulated sections forming a common joint axis.
- the tension-optimized tool design can be further improved if it is provided that the axis of rotation of the pivot bearing in the assembled state of the tool holder intersects the central longitudinal axis of the tool holder.
- a preferred variant of the invention can be such that the base part has a fastening section, by means of which it can be attached to a rotating body of a milling machine, that a connecting attachment, which carries the articulated section, adjoins the fastening section, and that the bit holder holds the connecting attachment by means of a cover on the , at least partially covers the side facing away from the fastening section.
- the cover protects the base part against wear due to the abrasive material removed during the cutting / milling process.
- a possible variant of the invention provides that the chisel holder in the assembled state rests with a seat on a stop of the base part, that the chisel holder has a fixing piece with a screw receptacle facing away from the pivot bearing, that the fixing piece is at a distance from a fastening attachment of the base part is arranged, and that the chisel holder is clamped to the fastening projection of the base part by means of a fastening screw guided through the screw receptacle.
- the spaced arrangement of the fixing piece to the pivot bearing forms a large fastening lever, which enables the bit holder to be securely attached to the base part.
- the fact that the fixing piece is spaced apart from the fastening attachment creates a clamping area. On the one hand, this compensates for dimensional tolerances. On the other hand, reliable bracing is possible.
- the base part has a receptacle in the area of the fastening attachment, in which a nut is received in a rotationally fixed manner, and that the nut is in alignment with a breakthrough of the fastening attachment and the screw receptacle of the fixing piece of the bit holder.
- the mother can also be designed as a standard mother. In the event of wear, the nut can be replaced quickly and easily.
- FIG. 2 the base part according to FIG. 1 in front view
- FIG. 3 shows the base part according to FIG. 1 in a side view from the left
- FIG. 4 the base part according to FIG. 1 in plan view
- FIG. 6 the chisel holder according to FIG. 5 in a bottom view
- Fi g. 10 shows a tool arrangement with a base part according to FIGS. 1 to 4 and a chisel holder according to FIGS. 5 to 9 in a perspective front view and
- Fi g. 1 1 the tool arrangement according to FIG. 1 0 in a perspective rear view.
- a base part 10 of a device for holding a shaft chisel 30 is shown.
- the base part 1 0 has a fastening section 10.1 with an attachment surface 1 2.
- the top surface 1 2 has a concavely curved contour, the curvature of a cylindrical outer contour of a milling drum (not shown) being adapted.
- the base part 10 can be placed on the milling roller with the attachment surface 1 2 and connected to it, for example welded.
- the fastening section 10.1 has a receptacle 1 3 in its rear area. This is open towards the bottom of the base 10 so that it is easily manufactured, e.g. B. can be milled.
- the receptacle 1 3 is designed in its cross-sectional shape so that a nut can be inserted over the open back of the receptacle 1 3.
- the circumferential contour of the nut is fixed in the receptacle 1 3 in a torsion-proof manner.
- the thread of the nut is accessible through an opening 1 4 in a fastening projection 1 5 of the base part 1 0.
- the connection approach 1 0.2 is closed with a convexly rounded front piece 1 1.
- FIG. 2 shows more clearly, two plate-shaped connecting lugs 10.2 are formed on the fastening section 10.1.
- the connection lugs 1 0.2 are spaced parallel to each other and limit a receptacle 1 0.3. This is thus recessed into the base part.
- the connecting lugs 10.2 pass over a wall 1 6 starting from the fastening lug 15 in a convexly curved transition section 17. Following the transition section 1 7, the base part 1 0 has a stop 1 8. The stop 1 8 goes into a joint section 1 9.2 with a convex outer contour, which is madebil det as the counter surface 1 9.1.
- the hinge section 19 has the shape of a partial cylinder which extends over an arc of 180 °. At the front, the hinge section 1 9 merges with its counter surface 1 9. 2 into the front piece 11 via a concave indentation.
- a chisel holder 20 is shown, which can be attached to the above-described base part.
- the bit holder 20 has a holding section 22, into which a cylindrical bit holder 28 is inserted.
- the chisel receptacle 28 merges on one side via an insertion extension 28.1 into an annular support surface 26.
- the support surface 26 runs around the chisel receptacle 28.
- the chisel receptacle 28 ends in an expulsion opening 29. This can be used to insert a driving tool for dismantling the shaft chisel 30 in the usual way.
- a cover 21 extends on both sides of the holding section 22 transversely to the central longitudinal axis of the chisel receptacle 28.
- the covers 21 each enclose a receptacle 23.
- the receptacle 23 is delimited in its front region by a semi-cylindrical concave contact surface 23.4, the curvature of the contact surface 23.4 being adapted to the curvature of the counter surface 1 9.1 of the base part 1 0.
- the FV pick holder 20 forms a joint section 23.1.
- the contact surface 23.4 goes to the rear side of the chisel holder 20 in a flat seat 23.2 and this into 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 holder 27 is inserted into the fixing piece 24.
- the chisel holder 20 with its holding attachment is inserted into the area between the connecting attachments 1 0.2 in the receptacle 1 3.
- the connecting lugs 10.2 engage in the receptacles 23 until the hinge sections 19 and 23.1 come into engagement.
- the hinge sections 19 and 23.1 b form a pivot bearing about which the bit holder 20 can be pivoted relative to the base part 10.
- the pivot axis goes through the in Fig. 1 symmetry point marked with "M”.
- the swivel axis running through "M” intersects the central axis of the chisel holder 28.
- the pivoting movement of the chisel holder 20 is limited by means of the beveled wall 23.3 of the base part 1 0.
- the wall 1 6 of the bit holder 20 strikes against this.
- the bead 25 engages in the indentation 1 9.1 of the base part 1 0.
- the fixing piece 24 is spaced apart from the fastening attachment 1 5.
- a fastening screw can then be passed through the screw receptacle 27 and the opening 1 4 that is in alignment therewith and screwed into the nut held in the receptacle 1 3.
- the bit holder r 20 is then fixed on the base part 10.
- the screw hole of the fastening screw is protected in a recess 27.1 in the tool holder 20.
- the tool holder 20 is dismantled accordingly in the reverse order of assembly.
- a shank chisel 30 with a shank can be inserted into the chisel receptacle 28.
- the shank chisel 30 is held in the chisel receptacle 28 in a known manner by means of an adapter sleeve attached to the shank, the shank chisel 30 remaining freely rotatable about its central longitudinal axis.
- the shaft chisel 30 has a chisel head molded onto the shaft with a chisel tip 32.
- the chisel head is supported on the support surface 26 by means of a wear protection element designed 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)
- Knives (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
Claims
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 (de) | 2004-04-19 | 2005-03-10 | Vorrichtung zur halterung eines schaftmeissels |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1740796A1 true EP1740796A1 (de) | 2007-01-10 |
EP1740796B1 EP1740796B1 (de) | 2012-04-11 |
Family
ID=34962449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05715895A Not-in-force EP1740796B1 (de) | 2004-04-19 | 2005-03-10 | Vorrichtung zur halterung eines schaftmeissels |
Country Status (6)
Country | Link |
---|---|
US (1) | US7547075B2 (de) |
EP (1) | EP1740796B1 (de) |
CN (1) | CN1942654B (de) |
AT (1) | ATE553282T1 (de) |
DE (1) | DE102004019383B4 (de) |
WO (1) | WO2005100748A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004057302B4 (de) * | 2004-11-26 | 2011-01-13 | Wirtgen Gmbh | Meißelhalter |
US20080093912A1 (en) * | 2005-05-13 | 2008-04-24 | Ground Assault Tools Pty Ltd | Cutting Tool Holding Apparatus And Method Of Use |
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 |
ES2876005T3 (es) | 2010-12-03 | 2021-11-11 | Wirtgen Gmbh | Portapicas |
JP5822940B2 (ja) | 2010-12-03 | 2015-11-25 | ヴィルトゲン ゲーエム ベーハーWirtgen Gesellschaft Mit Beschrankter Haftung | チゼルホルダ、並びに当該チゼルホルダ及びベース部を具備するチゼルホルダシステム |
DE102010061019A1 (de) | 2010-12-03 | 2012-06-06 | Betek Gmbh & Co. Kg | Meißelhalter und Werkzeugunterteil für einen Meißelhalter |
CN202705874U (zh) | 2010-12-03 | 2013-01-30 | 维特根有限公司 | 刀架 |
BR112013012798B1 (pt) | 2010-12-03 | 2020-12-01 | Wirtgen Gmbh | retentor de cinzel e sistema retentor de cinzel |
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 |
USD667856S1 (en) | 2011-04-11 | 2012-09-25 | Betek Gmbh & Co. Kg | Chisel holder |
DE102011051525A1 (de) | 2011-07-04 | 2013-01-10 | Wirtgen Gmbh | Meißelhalter für eine Bodenbearbeitungsmaschine |
USD666226S1 (en) | 2011-07-04 | 2012-08-28 | Wirtgen Gmbh | Chisel holder |
USD669505S1 (en) * | 2011-11-23 | 2012-10-23 | Wirtgen Gmbh | Chisel holder bar |
EP3116769A4 (de) | 2014-03-07 | 2017-12-27 | Vermeer Manufacturing Company | Austauschbare montagevorrichtung von reduzierenden elementen |
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. |
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 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3339558A1 (de) * | 1982-11-13 | 1985-05-09 | Peters, Albert, 4000 Düsseldorf | Gewinnungseinrichtung mit dreh-kippmeissel und geschlossener meisseltasche |
EP0129883B1 (de) | 1983-06-24 | 1989-03-22 | Siemens Aktiengesellschaft | Frontsystem für in Baugruppenträger einschiebbare Steckbaugruppen und rahmenartige Baugruppenträger zu deren Aufnahme |
DE8512938U1 (de) * | 1985-05-02 | 1985-07-25 | Kennametal GmbH, 6382 Friedrichsdorf | Vorrichtung für die Halterung eines Schneidmeißels sowie für die Steuerung der Bedüsungsmittelzufuhr bei einer Vortriebsmaschine |
US5011229A (en) | 1988-11-09 | 1991-04-30 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
US4915455A (en) | 1988-11-09 | 1990-04-10 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
DE29510913U1 (de) * | 1995-07-06 | 1995-09-28 | Wagener, Helmut, 53577 Neustadt | Vorrichtung zur Halterung eines Fräsmeißels |
CN2294333Y (zh) * | 1997-04-24 | 1998-10-14 | 太原矿山机器厂 | 一种采煤机截割刀具 |
DE29711566U1 (de) | 1997-07-02 | 1997-09-04 | Wagener, Helmut, 53577 Neustadt | Vorrichtung zur Halterung eines Fräsmeißels |
DE19908656C1 (de) * | 1999-02-27 | 2000-08-31 | Wirtgen Gmbh | Meißelhalterwechselsystem |
-
2004
- 2004-04-19 DE DE102004019383A patent/DE102004019383B4/de not_active Expired - Fee Related
-
2005
- 2005-03-10 CN CN2005800118286A patent/CN1942654B/zh not_active Expired - Fee Related
- 2005-03-10 US US11/578,889 patent/US7547075B2/en not_active Expired - Fee Related
- 2005-03-10 WO PCT/EP2005/002513 patent/WO2005100748A1/de active Application Filing
- 2005-03-10 AT AT05715895T patent/ATE553282T1/de active
- 2005-03-10 EP EP05715895A patent/EP1740796B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2005100748A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7547075B2 (en) | 2009-06-16 |
DE102004019383B4 (de) | 2008-06-12 |
CN1942654B (zh) | 2011-11-02 |
ATE553282T1 (de) | 2012-04-15 |
CN1942654A (zh) | 2007-04-04 |
WO2005100748A1 (de) | 2005-10-27 |
US20070241605A1 (en) | 2007-10-18 |
EP1740796B1 (de) | 2012-04-11 |
DE102004019383A1 (de) | 2005-11-10 |
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