EP1509680A1 - Halterung für einen schaftmeissel - Google Patents
Halterung für einen schaftmeisselInfo
- Publication number
- EP1509680A1 EP1509680A1 EP03709726A EP03709726A EP1509680A1 EP 1509680 A1 EP1509680 A1 EP 1509680A1 EP 03709726 A EP03709726 A EP 03709726A EP 03709726 A EP03709726 A EP 03709726A EP 1509680 A1 EP1509680 A1 EP 1509680A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- clamping
- screw
- receptacle
- wedge
- 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 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000036316 preload Effects 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
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
Definitions
- the invention relates to a holder for a shaft chisel with a base part and an upper part, the upper part being releasably connectable to the base part, the upper part having a receptacle for a shaft chisel, the base part having a shaft receptacle into which the upper part is inserted with a shaft , the shaft has a clamping surface on which a clamping element with a counter surface rests, the clamping element having a clamping screw by means of which the clamping surface can be clamped to the counter surface, the base part having a heel surface which is in the area of the shaft receptacle and at least partially around the upper part is seated with a support surface on the stop surface and is held in the area of the attachment surface, at least in regions, at a distance from the base part.
- Such a holder is known from DE 4322401 A1.
- a base part is used, which is connected to a cylindrical milling tube of a milling machine, preferably a road milling machine.
- An upper part with a shaft is inserted into a socket of the base part.
- the shaft has a clamping surface that is inclined with respect to the insertion direction.
- the base part is provided with a screw holder that ends in the socket holder.
- a clamping screw can be screwed into the screw holder.
- the clamping screw has a counter surface on its end facing away from the screw head. This can be clamped with the clamping surface of the shaft, so that the upper part is held securely in the base part.
- the thread in the base part can be damaged. Then the base part must be replaced. This results in costly machine downtimes because the base part is welded to the milling tube. It then has to be burned out and a new base part welded on.
- the clamping screw is designed as a pressure screw. At its end facing away from the screw head, it stands on the clamping surface of the shaft and can experience a mushroom-shaped flattening if the tightening torque is too high. When the tensioning screw is unscrewed, there is a risk that the deformation will damage the thread. Then the base part is destroyed.
- the counter surface of the clamping screw, which is clamped against the clamping surface of the shaft, is relatively small. This results in a high surface pressure, in particular with impermissibly high tightening torques. As a result of material settlements in the Clamping and the threaded connection can then lead to a loss of preload. As a result of vibrations during operation, there is a risk that the upper part will come loose and the lower part will be damaged.
- the clamping element has at least one displaceable wedge, which has at least one screw receptacle for the clamping screw, and in that the clamping screw is supported on the upper part and is guided through the support surface and the stop surface.
- High clamping forces can be transferred to the shaft of the upper part via the wedge of the clamping element. Even if, for example as a result of an operator error, damage occurs in the threaded connection, this can be remedied without major machine downtimes. All you have to do is change the wedge that has the screw holder.
- the use of the wedge allows the use of a lag screw. This has the advantage that loosening of the screw connection is prevented even when the upper part is subjected to high mechanical loads and in particular in the case of vibrations.
- the elasticity of the clamping screw in particular also the settlement of settlements without loss of tension.
- the fact that the clamping screw is passed through the stop surface of the base part results in a stable attachment with a space-saving design.
- the pull-in force introduced into the upper part via the tensioning screw is greater than the frictional force that arises between the wedge and the shaft. Then it is ensured that the upper part is always held in a defined manner on the stop surface of the base rope.
- the clamping element and the upper part are inserted into the wedge receptacle and the shaft receptacle from the upper side of the base part, and that the tensioning screw is passed through a screw receptacle of the upper part from the upper side of the base part.
- the clamping element in the wedge receptacle can be adjusted between a release position releasing the shaft of the upper part and a clamping position clamping it by means of the clamping screw, that the clamping element with a limiting surface in the release position rests on a corresponding counter surface of the wedge receptacle, and that the clamping screw is arranged in such a way that it finds the screw receptacle in the release position with its screw shaft.
- an arrangement according to the invention can be such that the wedge angle (x) of the clamping element is selected in the range between 10 ° and 20 °.
- a particularly compact design can be achieved in that the central longitudinal axis of the receptacle for the shank chisel intersects the central longitudinal axis of the clamping screw in the area of the screw shaft.
- the wedge of the clamping element is supported flat against the shaft of the upper part and a wall of the clamping element receptacle.
- the wall of the clamping element holder and the clamping surface towards the shaft should be dimensioned as large as possible.
- the shaft of the upper part is designed in cross section as a pentagonal shaft with five flat shaft surfaces, and that the clamping element can be braced flat on one of these shaft surfaces with a counter surface.
- a wear-optimized variant of the invention can be characterized in that the central longitudinal axis of the clamping screw (screw axis) is arranged parallel to the longitudinal axis of the shaft of the upper part.
- the clamping surface of the shaft is convex or concave, and that the counter surface of the clamping element is correspondingly concave or convex.
- Fig. 2 shows a section of the one marked A-A in Fig. 1
- the base part 20 is placed with its lower seat surface 21 on the surface 11 of a roller tube 10.
- the base part 20 can be connected to the roller tube 10, for example welded.
- a multiplicity of base parts are helically arranged in a row on the roller tube 10.
- 20 baying surfaces 28, 29 are provided on the base parts.
- the base part 20 has a shoulder surface 24 which, seen in the feed direction at the rear, merges into a stop surface 25.
- the stop surface 25 is at an angle to the heel surface 24.
- a shank receptacle 22 is introduced into the heel surface 24.
- the shaft holder 22 ends in the area of the roller tube 10 in a clearance 23 set back from the roller surface 11.
- the shaft holder 22 is expanded by means of a wedge holder 26.
- the cross-sectional dimensioning of this widens starting from the shoulder surface 24 in the direction of the roller surface 11.
- the upper part 30 can be attached to the base part 20, as will be explained in more detail later.
- the upper part 30 has a protruding projection 30.2, into which, starting from a support surface 30.1, a bore is made as a chisel holder 30.4.
- a round shank chisel not shown in the drawing, can be inserted in the chisel receptacle 30.4.
- the rotary shank chisel rotates about the central axis 30.10. As can be seen in FIG. 1, the central axis 30.10 is set at an acute angle.
- the chisel holder 30.4 ends in an insertion extension in the area of the contact surface 30.1. Turned away from the support surface 30.1, the chisel holder 30.4 merges into a recess 30.5.
- a receptacle 30.6 for the head of a clamping screw 50 is drilled into the upper part 30.
- the receptacle 30.6 goes into a screw receptacle 30.7. about.
- the upper part 30 has a support surface 30.8, which is assigned to the abutment surface 25 of the base part 20 and bears against it.
- the underside 30.9 of the upper part 30 is at a distance from the heel surface 24 in the assembled state of the holder.
- a shaft 30.1 1 extends from the upper part 30.
- the shaft 30.1 1 is inserted into the shaft receptacle 22 of the base part 20.
- two front, wedge-shaped guide surfaces 30.1 2 are supported on a corresponding centering 22.1 of the base part 20, as can be seen in FIG. 2.
- the shaft 30.1 1 On the back, opposite the clamping surfaces 30.1 2, the shaft 30.1 1 has a flat guide surface 30.1 3.
- a clamping element 40 is clamped on the guide surface 30.13 to hold the shaft 30.1 1 in the shaft receptacle 22.
- the clamping element 40 is designed as a displaceable wedge and inserted into the wedge receptacle 26.
- the clamping element 40 can be moved back and forth in the wedge receptacle 26 between a clamping and a releasing position by means of the clamping screw 50.
- Fig. 1 the clamping position is shown.
- the clamping element 40 rests with a counter surface 40.1 on the clamping surface 30.1 3 of the shaft 30.1 1.
- the clamping element 40 can be adjusted in the wedge receptacle 26 until it stands with a boundary surface 40.2 on the bottom of the wedge receptacle 26.
- the adjustment movement of the clamping element 40 is guided on the wall of the wedge receptacle 26. This thus forms a sliding surface 40.3.
- the adjustment of the clamping element 40 in the wedge receptacle 26 is effected by means of the clamping screw 50.
- the clamping screw 50 is inserted into the screw receptacle 30.7.
- the screw head 50.1 is protected in the receptacle 30.6.
- the screw shaft 50.2 is passed through the screw receptacle 30.7 and screwed with its threaded section into a threaded receptacle 40.4 of the clamping element 40.
- the clamping element 40 can be displaced along the longitudinal axis 27 as a result of a rotation of the clamping screw 50.
- the longitudinal axis 27 is set against the screw axis 50.3 by the wedge angle oc.
- the clamping element 40 can be adjusted until it hits the clamping surface 30.1 3 of the shaft 30.1 1.
- the clamping element 40 presses the clamping surfaces 30.1 2 against the associated centering 22.1 of the base part 20.
- the clamping element 40 is held clamped between the sliding surface 40.3 and the clamping surface 30.13.
- the shaft 30.1 1 is free from the rearward limitation of the shaft receptacle 22, which results in a free space 20.2.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Percussive Tools And Related Accessories (AREA)
- Stringed Musical Instruments (AREA)
- Forging (AREA)
- Golf Clubs (AREA)
- Earth Drilling (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10221764 | 2002-05-15 | ||
| DE10221764A DE10221764C1 (de) | 2002-05-15 | 2002-05-15 | Halterung für einen Schaftmeißel |
| PCT/EP2003/002015 WO2003098001A1 (de) | 2002-05-15 | 2003-02-27 | Halterung für einen schaftmeissel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1509680A1 true EP1509680A1 (de) | 2005-03-02 |
| EP1509680B1 EP1509680B1 (de) | 2006-10-18 |
Family
ID=29285454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03709726A Expired - Lifetime EP1509680B1 (de) | 2002-05-15 | 2003-02-27 | Halterung für einen schaftmeissel |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7086704B2 (de) |
| EP (1) | EP1509680B1 (de) |
| CN (1) | CN1333152C (de) |
| AT (1) | ATE343045T1 (de) |
| AU (1) | AU2003214077A1 (de) |
| DE (2) | DE10221764C1 (de) |
| WO (1) | WO2003098001A1 (de) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10261159C5 (de) * | 2002-12-20 | 2010-11-11 | Andreas Lemm | 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 |
| RU2563008C2 (ru) | 2010-12-03 | 2015-09-10 | Виртген Гмбх | Резцедержатель и система резцедержателя с резцедержателем и корпусом |
| AU2011334854B2 (en) | 2010-12-03 | 2016-06-16 | Wirtgen Gmbh | Chisel holder, and chisel holder system comprising a chisel holder and a base part |
| US9228434B2 (en) | 2010-12-03 | 2016-01-05 | Wirtgen Gmbh | Chisel holder |
| RU2580545C2 (ru) | 2010-12-03 | 2016-04-10 | Виртген Гмбх | Резцедержатель |
| DE102010061019A1 (de) | 2010-12-03 | 2012-06-06 | Betek Gmbh & Co. Kg | Meißelhalter und Werkzeugunterteil für einen Meißelhalter |
| USD667854S1 (en) | 2011-04-11 | 2012-09-25 | Betek Gmbh & Co. Kg | Chisel holder |
| USD667855S1 (en) | 2011-04-11 | 2012-09-25 | Betek Gmbh & Co. Kg | Base for a chisel holder |
| USD671578S1 (en) | 2011-07-04 | 2012-11-27 | Wirtgen Gmbh | Chisel holder |
| DE102011051525A1 (de) | 2011-07-04 | 2013-01-10 | Wirtgen Gmbh | Meißelhalter für eine Bodenbearbeitungsmaschine |
| USD688282S1 (en) | 2012-02-09 | 2013-08-20 | Frank Friedrich Lachmann | Tool |
| GB201215555D0 (en) * | 2012-08-31 | 2012-10-17 | Element Six Gmbh | Pick assembly, bit assembly and degradation tool |
| KR20140048564A (ko) * | 2012-10-16 | 2014-04-24 | 삼성전기주식회사 | 코어기판, 그의 제조방법 및 메탈 비아용 구조체 |
| WO2015134559A1 (en) | 2014-03-07 | 2015-09-11 | Vermeer Manufacturing Company | Replaceable mounting apparatus for reducing elements |
| USD746878S1 (en) | 2014-04-11 | 2016-01-05 | Vermeer Manufacturing Company | Mounting block for reducing elements |
| USD746340S1 (en) | 2014-04-11 | 2015-12-29 | Vermeer Manufacturing Company | Mounting block for reducing elements |
| CN204530411U (zh) * | 2015-03-27 | 2015-08-05 | 永沛得股份有限公司 | 刀具夹持器 |
| NL2014748B1 (en) * | 2015-05-01 | 2017-01-25 | Leo Dynamische Investering B V | Cutter head with a replaceable adapter. |
| CN105133480B (zh) * | 2015-08-18 | 2018-04-06 | 苏州凯通工程机械有限公司 | 一种铣刨机用刀座基座系统 |
| TWM550669U (zh) * | 2017-07-27 | 2017-10-21 | 永沛得股份有限公司 | 刀具夾持裝置 |
| CN109944144A (zh) * | 2019-04-08 | 2019-06-28 | 苏州五元素机械制造有限公司 | 一种快换工具保持架系统 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498677A (en) * | 1968-10-30 | 1970-03-03 | Bowdil Co | Cutting apparatus |
| BE795710A (fr) * | 1972-09-14 | 1973-06-18 | Gewerk Eisenhuette Westfalia | Pic, en particulier pour rabot a charbon ou engin equivalent |
| US4057294A (en) * | 1975-08-01 | 1977-11-08 | The Cincinnati Mine Machinery Company | Wedge arrangement for removably affixing a work tool or work tool holder to a base member on mining, road working or earth moving machinery, and the like |
| SU686635A3 (ru) * | 1975-08-30 | 1979-09-15 | Геверкшафт Эйзенхютте Вестфалия (Фирма) | Резец дл угольного струга |
| US4275929A (en) * | 1978-08-25 | 1981-06-30 | The Cincinnati Mine Machinery Company | Means for removably affixing a cutter bit mounting lug to a base member on the driven element of a mining machine or the like |
| DE3339558A1 (de) * | 1982-11-13 | 1985-05-09 | Peters, Albert, 4000 Düsseldorf | Gewinnungseinrichtung mit dreh-kippmeissel und geschlossener meisseltasche |
| FR2536113B1 (fr) * | 1982-11-13 | 1987-12-11 | Ruhrkohle Ag | Dispositif d'extraction, notamment pour exploitations minieres souterraines, muni d'un trepan amovible du type tournant et basculant |
| DE9211739U1 (de) * | 1992-09-01 | 1992-11-05 | Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co KG, 7234 Aichhalden | Walzenförmiger Schneidkörper für eine Schrämmaschine |
| US5322351A (en) * | 1993-05-24 | 1994-06-21 | Caterpillar Paving Products Inc. | Rotary cutter and mounting arrangement for cutting tools |
| DE4322401C2 (de) * | 1993-07-06 | 1996-06-20 | Betek Bergbau & Hartmetall | Befestigung eines Schrämwerkzeugs an einem Schrämkörper |
| DE9411545U1 (de) * | 1994-07-16 | 1994-09-22 | Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik, 36149 Burghaun | Vorrichtung zur Halterung eines Schrämmeißels |
| GB9704554D0 (en) * | 1997-03-05 | 1997-04-23 | Bingham Engineering Ltd | Semi-locking pick box assembly |
| DE29822369U1 (de) * | 1998-12-16 | 1999-03-18 | Wagener, Helmut, 53577 Neustadt | Vorrichtung zur Halterung eines Werkzeuges |
| US6220671B1 (en) * | 1999-07-09 | 2001-04-24 | Kennametal Pc Inc. | Cutting tool holder retention system |
| DE10161713B4 (de) * | 2001-12-15 | 2004-02-05 | Wirtgen Gmbh | Meißelhalterwechselsystem |
| DE10261646B4 (de) * | 2002-12-27 | 2010-02-25 | Wirtgen Gmbh | Schrämwerkzeug |
| DE10331970B4 (de) * | 2003-07-14 | 2008-01-31 | Wirtgen Gmbh | Baumaschine |
-
2002
- 2002-05-15 DE DE10221764A patent/DE10221764C1/de not_active Expired - Fee Related
-
2003
- 2003-02-27 EP EP03709726A patent/EP1509680B1/de not_active Expired - Lifetime
- 2003-02-27 AT AT03709726T patent/ATE343045T1/de not_active IP Right Cessation
- 2003-02-27 DE DE50305426T patent/DE50305426D1/de not_active Expired - Lifetime
- 2003-02-27 WO PCT/EP2003/002015 patent/WO2003098001A1/de not_active Ceased
- 2003-02-27 US US10/514,392 patent/US7086704B2/en not_active Expired - Lifetime
- 2003-02-27 CN CNB038107996A patent/CN1333152C/zh not_active Expired - Fee Related
- 2003-02-27 AU AU2003214077A patent/AU2003214077A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03098001A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50305426D1 (de) | 2006-11-30 |
| AU2003214077A1 (en) | 2003-12-02 |
| EP1509680B1 (de) | 2006-10-18 |
| CN1653245A (zh) | 2005-08-10 |
| WO2003098001A1 (de) | 2003-11-27 |
| CN1333152C (zh) | 2007-08-22 |
| DE10221764C1 (de) | 2003-11-27 |
| ATE343045T1 (de) | 2006-11-15 |
| US7086704B2 (en) | 2006-08-08 |
| US20050150666A1 (en) | 2005-07-14 |
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