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EP1579105B1 - Outil de havage - Google Patents

Outil de havage Download PDF

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Publication number
EP1579105B1
EP1579105B1 EP03785617A EP03785617A EP1579105B1 EP 1579105 B1 EP1579105 B1 EP 1579105B1 EP 03785617 A EP03785617 A EP 03785617A EP 03785617 A EP03785617 A EP 03785617A EP 1579105 B1 EP1579105 B1 EP 1579105B1
Authority
EP
European Patent Office
Prior art keywords
sealing element
base part
cutting tool
plug
bit holder
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 - Lifetime
Application number
EP03785617A
Other languages
German (de)
English (en)
Other versions
EP1579105A1 (fr
Inventor
Günter TEWES
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 EP1579105A1 publication Critical patent/EP1579105A1/fr
Application granted granted Critical
Publication of EP1579105B1 publication Critical patent/EP1579105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head-, foot- or like rests for beds, sofas or the like
    • A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
    • A47C20/041—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination by electric motors
    • 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
    • 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
    • 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
    • Y10T82/25—Lathe
    • Y10T82/2585—Tool rest
    • Y10T82/2589—Quick release tool or holder clamp

Definitions

  • the invention relates to a cutting tool of a cutting machine having a base part and a bit holder, wherein the bit holder is provided with a plug-in projection which is held in a socket of the base part, and wherein the plug-in receptacle is in spatial communication with the environment via one or more openings ,
  • Such a cutting tool is from the DE 43 22 401 C2 known.
  • the cutting tool includes a bit holder and a base part which is attached to a cylindrical cutting body of a cutting machine. To attach the chisel holder on the base part this has a plug-in with a prism guide into which a plug neck of the chisel holder can be inserted.
  • the bit holder is fixed by means of a pressure screw. The exact positioning of the chisel holder is also given special importance in the case of repeated assembly / disassembly and replacement.
  • the base part has a stop on which the bit holder is supported. So that the effect of the stop is maintained and a load on the plug-in extension and the plug-in receptacle is largely avoided, the bit holder is arranged in the region around the plug-in receptacle spaced around a Vietnamesesetzraum.
  • Impurities are particularly disadvantageous on the insertion projection of the chisel holder and in the region of the plug-in receptacle of the base part.
  • the particles used here are smashed during later machine operation. This creates a game between the plug-in approach and the pricking.
  • the Precision positioning of the chisel holder is then no longer ensured. This has a negative effect especially in so-called fine milling.
  • This method which is gaining in importance in practice, is used to mill road surfaces to final quality in one processing step. The prerequisite for this is that the bit holders are exactly positioned. If a chisel holder does not meet this criterion, then it creates a defect in the milling pattern that affects the overall result. A chisel holder sitting loosely in the base part can thus decisively worsen the milling quality. Furthermore, it may happen that the loosened chisel completely detached from the base part and then causes serious damage to the tool.
  • This object is achieved in that at least one of the openings is closed at least partially with a sealing element.
  • the sealing element protects the transition region of the plug-in receptacle formed between the plug-in projection and the base part. It prevents in a simple and effective way the penetration of space material and water into the socket. When the bit holder has reached its wear state, it can be pulled out of the socket. The receiving space formed by the plug-in receptacle remains unpolluted or substantially free of contamination. A new bit holder can then be accurately positioned and fixed with little time.
  • the sealing element thus forms a simple component which allows an effective tool change and at the same time substantially increases the service life of the base part.
  • the sealing element may also be formed by a layer of grease.
  • the sealing element between the bit holder and the base part is arranged at least partially around the plug receptacle. This protects an area that can often penetrate massive contaminants.
  • a particularly good seal is achieved in that the sealing element is designed as a molded part, which has the contour of the circumference of the plug-neck of the bit holder. Furthermore, the design is particularly easy to install, since the sealing element can be placed for mounting on the plug neck of the bit holder and then used together with the bit holder in the base part.
  • the base part has a circumferential chamfer around the plug-in receptacle, which serves as a seat for the sealing element, ensures that the sealing element sits immovably during operation. Furthermore, the chamfer provides the space in which the sealing element is pressed defined during assembly, without it can be destroyed. As a result, an optimum sealing effect is achieved.
  • a permanent sealing of the area to be protected is achieved in that the sealing element consists of a permanently elastic material, preferably of silicone or of a thermoplastic elastomer.
  • a preferred embodiment provides that the bit holder rests with its stop on the stop of the base part, that the base part has a shoulder which is at an angle to the stop, that between the shoulder of the base part and the paragraph facing side of the bit holder as Vietnamesesetzraum acting distance is formed, wherein the sealing element is formed in such a way is that it bridges this gap. This ensures that no rock powder and water can penetrate through the Nachsetzraum in the socket.
  • a particularly easy assembly and secure sealing effect is achieved in that the sealing element is angled in accordance with the angle between the shoulder and the stop of the base part.
  • the sealing element has a portion of O-shaped cross-section which rests at least partially against the stop of the base member and has an angled against this portion which on the Has paragraph of the base part and a, the distance at least partially bridging thickened cross-section.
  • An advantageous embodiment of the invention provides that the angled section has a wedge-shaped sealing lip, which is adapted to the shape of the Nachsetzraumes. As a result, unevenness and manufacturing robotics on chisel holder and base are compensated.
  • sealing element is designed as an injection molded part and the sprue is arranged in the region of the corresponding thickened cross-section cross section. This ensures that the sprue nose does not affect the sealing effect of the sealing element.
  • a simple and precise fitting of the chisel holder in the base part is achieved by the sealing element is mounted as a separate plastic component on the plug-in approach or the sealing element is molded onto the plug-in approach as a plastic component.
  • a preferred embodiment of the invention provides that the bit holder for the cutting tool is provided with an integrally formed on a base plug-in, and the plug-in approach has a sealing element surrounding the plug-in approach at least partially on its outer periphery. This ensures that the bit holder can be preformed with the plug-in approach and the sealing element as a unit, stored as a unit and can be mounted as a spare quickly and inexpensively.
  • the cutting tool (1) in Fig. 1 consists of a base part (20) in which a replaceable bit holder (10) can be used. Furthermore, the cutting tool (1) has a sealing element (30) and a pressure screw (40), which serves for fixing the bit holder (10) in the base part (20).
  • the bit holder (10) consists of a base body (17) and has at its lower end an insertion projection (15) which in a corresponding thereto plug-in receptacle (22) on the base part. (20) can be used.
  • the insertion movement of the chisel holder (10) in the base part (20) is limited in its rear region by a stop (11) on the bit holder (10) and by a, this opposite stop (24) on the base part (20).
  • the insertion projection (15) has at its front edge at least one guide surface (15.1) which is guided by a corresponding prism guide (22.1) in the plug-in receptacle (22) during insertion of the bit holder (10).
  • the bit holder (10) further has a chisel holder (12) into which a likewise easily replaceable turning tool can be inserted.
  • the chisel holder (12) forms with its longitudinal axis at an acute angle to the axis of the plug-in extension (15).
  • a sealing element (30) is mounted, which is adapted in its contour to the prism-shaped cross-section of the plug-in receptacle (15) with its guide surfaces (15.1).
  • the sealing element (30) can be made angled according to the angle between the shoulder (21) and the stop (24) of the base part (20).
  • the sealing element (30) in this case has an O-shaped cross section (31) in the region of the stop (24) and a cross-section thickened in the opposite direction in the region of the shoulder (21). In this case, this area is preferably designed as a wedge-shaped sealing lip (34).
  • the base part In the area around the plug-in receptacle (22), the base part is provided with a bevel (23) encircling the plug-in receptacle (22), which serves as a seat for the sealing element (30).
  • Fig. 2 shows the same cutting tool of Fig. 1 in section, after the bit holder (10) in the base part (20) is fully inserted.
  • the pressure screw (40) which is preferably designed as a grub screw and has a thread (41) and a flattened pin (42), acts with its pin (42) a pressure surface (14) which is formed by a V-shaped recess (13) on the, the guide surface (15.1) opposite side of the plug-in projection (15).
  • Fig. 3a and 3b show an embodiment of the sealing element (30) in plan view and in side view.
  • the sealing element (30) is designed as a molded part, which has the contour of the circumference of the plug-in projection (15) of the bit holder (10). Corresponding to the angle between the shoulder (21) and the abutment (24) of the base part (20), the sealing element (30) is angled, wherein the sealing element (30) has at least one section with O-shaped cross-section (31), which on the Stop (24) of the base part (20) is applied.
  • the angled portion (32) which bears against the shoulder (21) of the base part (20) has a cross section which is thickened in accordance with the distance (16).
  • a wedge-shaped sealing lip (34) executed angled portion (32) increases the sealing effect.
  • the sealing element (30) is formed from permanently elastic material and preferably designed as an injection molded part.
  • the materials used are silicones. Examples are so-called liquid silicone rubber (LSR), z. B. SILOPREN® from GE BAYER Silicones, which can be produced by means of the so-called Liquid Injection Molding (LIM).
  • suitable thermoplastic elastomers for. B. SANTOPRENE® from ADVANCED ELASTOMER SYSTEMS, which can be processed in the normal injection molding process. The usual during injection molding sprue is laid in the thickened region of the distance (16), so that the sprue nose (33) does not affect the sealing effect of the sealing element (30).
  • sealing element (30) may be formed directly on the integrally formed plug projection (15) of the chisel holder (10), thereby surrounding the plug projection (15) at least in regions on its outer circumference.
  • sealing element (30) on the base part (20) in the region around the plug receptacle (22) is formed directly and surrounds the plug receptacle (22) at least partially on its outer periphery.
  • the invention is not limited to the cross-sectional shape of a plug-in extension (15) shown here. Rather, any other cross-sectional variants are conceivable, such as round cross-sections or plug-in lugs with a conical shape.
  • the plug-in receptacle (22) in the base part (20) facing away from the bit holder (10) is open. This opening is in communication closed with the connected, not shown in the drawing Fräswalzenrohr by means of a weld joint.

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)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Gasket Seals (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Milling Processes (AREA)
  • Lubricants (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Food-Manufacturing Devices (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Claims (10)

  1. Outil de havage d'une haveuse, qui présente une partie de base (20) et un porte-pic (10), le porte-pic étant pourvu d'un embout emboîtable (15) qui est maintenu dans un logement d'emboîtement (22) de la partie de base, le logement d'emboîtement étant spatialement relié à l'environnement par une ou plusieurs ouvertures, le porte-pic (10) s'appliquant par une butée (11) contre une butée (24) de la partie de base (20) et la partie de base (20) présentant un décrochement (21) qui forme un angle avec la butée (24), sachant qu'un espacement (16) servant d'espace de rattrapage est formé entre le décrochement (21) de la partie de base (20) et le côté du porte-pic (10) qui est tourné vers le décrochement (21),
    caractérisé en ce qu'au moins l'ouverture formée par le logement d'emboîtement est fermée au moins sectoriellement par un élément d'étanchéité, et l'élément d'étanchéité (30) est réalisé avec une forme telle qu'il comble l'espacement (16).
  2. Outil de havage selon la revendication 1, caractérisé en ce que l'élément d'étanchéité (30) entre le porte-pic (10) et la partie de base (20) est disposé au moins sectoriellement autour du logement d'emboîtement (22).
  3. Outil de havage selon la revendication 1 ou 2, caractérisé en ce que l'élément d'étanchéité (30) est réalisé sous forme de pièce façonnée qui présente le contour de la périphérie de l'embout emboîtable (15) du porte-pic (10).
  4. Outil de havage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie de base (20) présente autour du logement d'emboîtement (22) un chanfrein (23) au moins partiellement entourant qui sert de siège pour l'élément d'étanchéité (30).
  5. Outil de havage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'élément d'étanchéité (30) est constitué d'un matériau à élasticité permanente, de préférence de silicone ou d'un élastomère thermoplastique.
  6. Outil de havage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'élément d'étanchéité (30) est coudé en correspondance avec l'angle entre le décrochement (21) et la butée (24) de la partie de base (20).
  7. Outil de havage selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'élément d'étanchéité (30) présente une partie à section en O (31) qui s'applique au moins partiellement contre une région de la partie de base (20) qui est associée à la butée (24), et une partie (32) coudée par rapport à la précédente, qui s'applique contre le décrochement (21) de la partie de base (20) et présente une section épaissie comblant au moins sectoriellement l'espacement (16).
  8. Outil de havage selon la revendication 7, caractérisé en ce que la partie coudée (32) présente une lèvre d'étanchéité cunéiforme (34).
  9. Outil de havage selon l'une des revendications 7 ou 8, caractérisé en ce que l'élément d'étanchéité (30) est réalisé sous forme de pièce moulée par injection, et le bec d'injection (33) est disposé dans la région de la section épaissie en correspondance avec l'espacement (16).
  10. Outil de havage selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'élément d'étanchéité (30) est emmanché sur l'embout emboîtable (15) en tant que pièce séparée en matière plastique, ou en ce que l'élément d'étanchéité (30) est moulé par injection sur l'embout emboîtable (15) en tant que pièce en matière plastique.
EP03785617A 2002-12-27 2003-10-11 Outil de havage Expired - Lifetime EP1579105B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10261646 2002-12-27
DE10261646A DE10261646B4 (de) 2002-12-27 2002-12-27 Schrämwerkzeug
PCT/EP2003/011288 WO2004059128A1 (fr) 2002-12-27 2003-10-11 Outil de havage

Publications (2)

Publication Number Publication Date
EP1579105A1 EP1579105A1 (fr) 2005-09-28
EP1579105B1 true EP1579105B1 (fr) 2007-08-22

Family

ID=32519501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785617A Expired - Lifetime EP1579105B1 (fr) 2002-12-27 2003-10-11 Outil de havage

Country Status (11)

Country Link
US (1) US7461903B2 (fr)
EP (1) EP1579105B1 (fr)
KR (1) KR100685320B1 (fr)
CN (1) CN100532785C (fr)
AT (1) ATE371095T1 (fr)
AU (1) AU2003294689A1 (fr)
BR (1) BR0317797B1 (fr)
DE (3) DE20221925U1 (fr)
ES (1) ES2290531T3 (fr)
RU (1) RU2304216C2 (fr)
WO (1) WO2004059128A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD688282S1 (en) 2012-02-09 2013-08-20 Frank Friedrich Lachmann Tool

Families Citing this family (20)

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Publication number Priority date Publication date Assignee Title
DE10221764C1 (de) * 2002-05-15 2003-11-27 Wirtgen Gmbh Halterung für einen Schaftmeißel
DE102005003734B3 (de) * 2005-01-26 2006-02-16 Wirtgen Gmbh Meißelhaltersystem
US9653601B2 (en) 2005-07-11 2017-05-16 Peregrine Semiconductor Corporation Method and apparatus for use in improving linearity of MOSFETs using an accumulated charge sink-harmonic wrinkle reduction
USRE48965E1 (en) 2005-07-11 2022-03-08 Psemi Corporation Method and apparatus improving gate oxide reliability by controlling accumulated charge
DE102009059189A1 (de) * 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Meißelhalter und Basisteil zur Aufnahme eines Meißelhalters
DE102009059188A1 (de) * 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Meißelhalter und Basisteil
CN202788849U (zh) 2010-12-03 2013-03-13 维特根有限公司 刀架以及具有刀架和基础部件的刀架系统
AU2011334839B2 (en) 2010-12-03 2015-07-16 Wirtgen Gmbh Chisel holder
SG190954A1 (en) 2010-12-03 2013-07-31 Wirtgen Gmbh Chisel holder, and chisel holder system comprising a chisel holder and a base part
DE102010061019A1 (de) * 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Meißelhalter und Werkzeugunterteil für einen Meißelhalter
WO2012072785A2 (fr) 2010-12-03 2012-06-07 Wirtgen Gmbh Porte-burin
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
DE102011051525A1 (de) 2011-07-04 2013-01-10 Wirtgen Gmbh Meißelhalter für eine Bodenbearbeitungsmaschine
USD666643S1 (en) 2011-07-04 2012-09-04 Wirtgen Gmbh Chisel holder
US8857917B2 (en) 2012-12-12 2014-10-14 Kennametal Inc. Cutting tool mounting assembly
US9382795B2 (en) 2012-12-12 2016-07-05 Kennametal Inc. Cutting tool mounting assembly
AU2014281496B2 (en) 2013-06-18 2018-07-19 Esco Group Llc Mineral winning pick, pick holder, and combination
CN106758694A (zh) * 2017-01-16 2017-05-31 徐工集团工程机械有限公司 路面冷再生铣拌工具的刀座装置以及冷再生机
TWI803397B (zh) * 2022-07-21 2023-05-21 施權航 電動床

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD688282S1 (en) 2012-02-09 2013-08-20 Frank Friedrich Lachmann Tool

Also Published As

Publication number Publication date
RU2005123819A (ru) 2006-03-10
KR100685320B1 (ko) 2007-02-22
US20060130342A1 (en) 2006-06-22
US7461903B2 (en) 2008-12-09
EP1579105A1 (fr) 2005-09-28
CN100532785C (zh) 2009-08-26
CN1732327A (zh) 2006-02-08
ATE371095T1 (de) 2007-09-15
WO2004059128A1 (fr) 2004-07-15
ES2290531T3 (es) 2008-02-16
DE10261646B4 (de) 2010-02-25
RU2304216C2 (ru) 2007-08-10
BR0317797A (pt) 2005-11-22
BR0317797B1 (pt) 2014-06-24
HK1076647A1 (zh) 2006-01-20
KR20050091022A (ko) 2005-09-14
DE10261646A1 (de) 2004-07-22
DE20221925U1 (de) 2009-05-20
AU2003294689A1 (en) 2004-07-22
DE50308035D1 (de) 2007-10-04

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