EP2318656A1 - Meisselhalter mit schweissung als verschleissschutzelement - Google Patents
Meisselhalter mit schweissung als verschleissschutzelementInfo
- Publication number
- EP2318656A1 EP2318656A1 EP09777093A EP09777093A EP2318656A1 EP 2318656 A1 EP2318656 A1 EP 2318656A1 EP 09777093 A EP09777093 A EP 09777093A EP 09777093 A EP09777093 A EP 09777093A EP 2318656 A1 EP2318656 A1 EP 2318656A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bit
- weld
- groove
- holder according
- support surface
- 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
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000003801 milling Methods 0.000 claims abstract description 5
- 238000005520 cutting process Methods 0.000 claims abstract description 3
- 206010034016 Paronychia Diseases 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000007704 transition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007514 turning 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1831—Fixing methods or devices
-
- 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1835—Chemical composition or specific material
Definitions
- the invention relates to chisel holder for a cutting machine, road milling machine, surface miner or the like with a chisel holder, which has an insertion and with a chisel support surface, wherein in one of the chisel support surface associated region at least one wear protection element is arranged.
- Such a bit holder is known from US 6,585,327 B2.
- the chisel holder has a bore as a chisel holder.
- the chisel can be used interchangeably.
- a bore extension is provided, are soldered into the carbide rings.
- the chisel attachment is aligned with the holes passing through the carbide rings.
- the chisel inserted into the chisel holder is supported with its chisel head on a chisel support surface of the facing carbide ring.
- both carbide rings also support the bit in the area of its tool shank and thus act as wear protection during operation.
- the use of hard metal material for the purpose described above significantly increases the production costs.
- DE 39 29 609 A1 discloses a method in which the bit support surface of the bit holder affected by wear is protected by means of an armor consisting of wear-resistant material.
- a powder mixed with hard metal particles and solder particles is melted onto the surface to be protected.
- the disadvantage here is that a non-planar surface results, which is not exactly orthogonal to the central longitudinal axis of the bit holder. By such a surface protection but then the rotational behavior of the bit is adversely affected. It is an object of the invention to provide a bit holder of the type mentioned, which is protected effectively and with little parts and manufacturing costs from the wear of the bit.
- the at least one wear protection element is formed as a weld and at least partially disposed in at least one recess.
- the weld is formed by a welding filler, which by means of a usual. Welding process can be introduced with low production costs in the recess.
- the welding is characterized by a high resistance to abrasion and thus sets the chisel or the wear plate high wear resistance.
- the wear characteristics of the chisel holder can be adjusted to a large extent by the choice of the suitable welding filler material. Thus, for different road surfaces to be processed (concrete, asphalt) or raw materials (coal, sandstone, salt, etc.) wear-optimized bit holder can be provided.
- the recess is formed as a groove.
- the groove can be introduced, for example, by mechanical machining in a simple manner in the bit holder. Depending on the desired wear characteristics almost any groove geometries can be manufactured.
- a suitable groove for the purpose of the wear can be controlled. For example, provision may be made for the bit support surface to encircle around the insertion opening and to be arranged orthogonally to the central longitudinal axis of the bit receptacle, and for the recess to be recessed into the bit support surface.
- the chisel support surface which guarantees the exact support of the chisel as a geometrical element of the chisel holder, is not functionally impaired by the groove.
- the degree of depression of the groove can be optimized material selected so that the wear limit for the bit holder is reached with the processing of the entire weld.
- the weld is flush with the bit support surface, then the weld does not affect the exact bit support and is immediately available for operation.
- the weld is arranged at least partially set back relative to the bit support surface in the direction of the central longitudinal axis of the bit receptacle.
- the recess rotates about the insertion opening.
- a possible embodiment of the invention may be such that the groove has a bottom wall and two groove walls adjoining it laterally at an angle, and that the groove side walls are parallel to one another. Then, a constant wear resistance is opposed over the entire duration of the weld. It is also conceivable, however, that the groove has a bottom wall and two laterally adjoining each at an angle groove side walls, and that at least one of the angles is greater than 90 °, so that there is a V-shaped groove geometry, or that the groove in Cross-section is U-shaped. It can be considered that with increasing wear of the bit holder is processed. This results in changed force conditions on the bit holder, which can be taken into account with the groove geometries.
- a bit holder according to the invention may also be such that two or more grooves are incorporated into the bit support surface, which are in the middle of the bit support surface.
- a possible alternative to the invention may be such that one or more grooves 5 are formed as radial grooves and arranged offset from the bit support surface.
- the radial groove can preferably be so ange- orders that it is visible from the outside and thus reveals the wear state as a wear marking.
- Figure 1 in side view a chisel holder changing system with a base part, a chisel holder and a chisel;
- Figure 2 in side view and in vertical section the bit holder changing system according to Figure 1;
- FIG. 3 shows the bit holder shown in FIGS. 1 and 2 in a perspective front view
- Figure 4 is an enlarged detail view of the chisel holder according to Figure 3 in side view and in section;
- Figures 5 to 13 further embodiment variants of chisel holders according to Figure 3 in side view and in section;
- Figures 14 and 15 are each a plan view of a bit support surface of a chisel holder according to the invention.
- FIGS. 1 and 2 show a bit holder changing system with a base part 10, a bit holder 20 and a chisel 30.
- the base part 10 has a shank receptacle 15 which, starting from a shoulder 12 or a bottom surface 14, is incorporated as an opening in the base part 10.
- the base part 10 can be placed on the outer periphery of a Fräswalzenrohrs (not shown) of a road milling machine.
- the base part 10 is welded to the Fräswalzenrohr.
- a threaded receptacle 16 In the shank receiving 15 opens against the tool feed direction, a threaded receptacle 16 into which a pressure screw 17 can be screwed.
- the pressure screw 17 serves for fastening the chisel holder 20.
- the chisel holder 20 has an apron 21, which is integrally coupled to a connecting portion 23.
- the connecting portion 23 carries a lug 22 which has a projecting over the skirt 23 cylindrical portion 24.
- the projection 22 and the cylindrical portion 24 are penetrated by a bit holder 29 in the form of a through hole.
- the cylindrical portion 24 forms at its free end a chisel support surface 26 which extends annularly and concentrically around the central longitudinal axis of the chisel receiver 29.
- the bit receptacle 29 merges into the bit support surface 26 via an insertion bevel 29. 2 and a centering bevel 29.
- the centering bevel 29.1 expands the bit receptacle 29 in a V shape.
- the cylindrical projection 24 carries two wear marks 25. These are pierced as annular circumferential grooves in the outer contour of the cylindrical portion 24 and held parallel spaced from the chisel support surface 26.
- a cross-sectionally substantially square or rectangular recess 41 incorporated in the chisel support surface 26 .
- This recess 41 can be produced by machining (drilling, turning, milling) as annular and concentric around the central longitudinal axis of the bit holder 29 circumferential groove.
- This groove forms a bottom surface 44, which is parallel to the chisel support surface 26.
- At the bottom surface 44 close at right angles groove side walls 43.1 and 43.2.
- the groove side walls 43.1 and 43.2 are set so that they are held at a distance from the bit holder 29 (and the Ein manufacturedfase 29.2 and the centering bevel 29.1) and the wear marks 25.
- a weld 40 is introduced. This fills the recess 41 completely, wherein opposite the bottom surface 44, an open space 42 of the weld 40 is formed, which is flush with the bit support surface 26.
- the recess 41 and its arrangement are chosen such that the surfaces, such as the bit receptacle 29, the insertion bevel 29. 2, the centering bevel 29. 1 and the bit support surface 26, which are particularly important for perfect initial functioning of the overall system of bit 30 and bit holder 20 are not excluded from the Weld are formed or be influenced by this functionally.
- the weld outlet 40 of the opposite bore outlet of the bit holder 29 opens into a counter surface 27.
- a plug neck 28.2 is formed on the bit holder 20. With this plug-in projection 28. 2, the bit holder 20 can be inserted into the plug-in receptacle 15 of the base part 10. the. The insertion movement is limited by the stop surface 13 against which the counter surface 27 abuts.
- the pressure screw 17 is screwed into the threaded receptacle 16 until it is braced against a pressure surface 28.1 of the plug-in projection 28.2.
- a Nachsetzraum 11 is formed between a bottom 28 of the bit holder 20 and the shoulder 12 of the base member 10.
- a chisel 30 in this case a Ründschaftsm facedel be installed.
- the chisel bit has a chisel head 31 and a chisel shaft 36 formed thereon.
- a longitudinally slotted clamping sleeve 37 is axially captive, but held radially free to rotate.
- the chisel head 31 is provided with a cup-shaped receptacle in which a chisel tip 32 is attached from hard material.
- a circumferential Ausziehnut 33 is incorporated, which is bounded by a collar 34 on the shank side.
- the chisel shaft 36 carries in the transition region to the chisel head 31 a wear plate 35 which is rotationally symmetrical and provided on its side remote from the chisel head 31 side with a tapered centering collar 35.1.
- the outer diameter and the inner diameter of the wear plate 35 and the cylindrical portion 24 are approximately equal.
- the centering collar 35.1 of the wear plate 35 and the centering bevel 29.1 of the bit receptacle 29 correspond to one another in order to ensure perfect functioning, eg, in the case of a tool. As the unimpeded bit rotation, to ensure the overall system in use.
- the bit 30 is inserted into the bit receptacle 29 in such a way that it is held therein by means of the clamping action of the clamping sleeve 37.
- the wear plate 35 rests on the bit support surface 26 and the free surface 42 of the weld 40.
- On the opposite side of the wear plate 35 of the chisel head 31 is supported.
- the wear plate 35 grinds over the free surface 42 and the chisel support surface 26 and works this off. It should be noted that per life cycle of a chisel 30 only minimal signs of wear occur.
- weld 40 counteracts rapid wear. Whereby the choice of welding consumables reacts to the particular wear conditions of each individual application.
- the wear state can be determined optically by the position of the bit support surface 26 with respect to the wear marking 25. After reaching the second wear marking 25 of the bit holder 20 is replaced.
- FIG. 9 shows that the weld 40 concentrically revolves around the central longitudinal axis of the bit receptacle 29.
- FIG. 4 the weld 40 can be seen more clearly on an enlarged scale.
- the recess 41 is so far deepened in the bit holder 20 that the bottom wall 44 extends approximately to the level of the lower wear marking 25. This wear protection is guaranteed almost over the entire life of the bit holder 20.
- FIGS. 5 to 13 show bit holders 20 which correspond to the bit holders 20 according to FIGS. 1 to 4. They differ only with regard to the design of the recess 41 or the weld 40.
- the groove sidewalls 43.1, 43.2 of the recess 41 are set in a V-shape relative to one another, the groove sidewall 43.2 being parallel to the axis of the central longitudinal axis of the bit receptacle 29.
- FIG. 6 shows a symmetrical V-shaped groove configuration, with the opening angle (setting of a groove side wall 43.1, 43.2 to the bottom wall) preferably being selected to be greater than 90 ° for particularly simple generation of the weld.
- two annular welds 40 that rotate concentrically around the central longitudinal axis are used.
- the welds 40 are formed essentially analogously to the weld 40 according to FIG.
- Figure 8 illustrates an annular circumferential groove as a recess 41 which is semicircular or part-circular in cross-section. This recess 41 is particularly easy to fill with the weld 40.
- FIG. 10 shows a weld 40, which again takes the form of a circumferential ring.
- the ring width extending in the radial direction is varied to to form a matched to different stress intensities wear protection element.
- Figures 11 and 12 show the use of recesses 41 in the form of radial grooves. These are cut radially into the cylindrical outer surface of the cylindrical portion 24.
- the upper groove side wall 43.1 is kept parallel spaced apart from the bit support surface 26, while the other groove side wall 43.2 is set at an angle.
- wear marks 25 In the transition region of the free surface 42 of the weld 40 to the cylindrical portion 24 are wear marks 25. If the free surface 42 is designed analogous to Figure 9, then the wear marks 25 are visible as transitions of the troughed area optically well.
- FIG. 12 shows an exemplary embodiment in which two recesses 41 arranged one above the other are used with welds 40 introduced therein. As the illustration illustrates, here the welds 40 can form outwardly projecting free surfaces 42 for identifying wear marks 25.
- the recess 41 may be formed not only in the form of a groove, but also as a recess.
- circumferential welds 40 it is also possible for punctiform, curved or linear recesses 41 with welds 40 to be provided, as shown by way of example in FIGS. 14 and 15. Only restriction for the The shape and arrangement of the recess (s) is that they are to be finished and refilled with the weld.
- the invention described can be used not only in the chisel holders 20 shown in the drawings, but in chisel holders 20 of any desired shape and easy to implement.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Road Repair (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008045825A DE102008045825B3 (de) | 2008-09-05 | 2008-09-05 | Meißelhalter für eine Schrämmaschine, Straßenfräse, Suface-Miner oder dergleichen |
PCT/EP2009/005009 WO2010025788A1 (de) | 2008-09-05 | 2009-07-10 | Meisselhalter mit schweissung als verschleissschutzelement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2318656A1 true EP2318656A1 (de) | 2011-05-11 |
EP2318656B1 EP2318656B1 (de) | 2020-04-15 |
Family
ID=41110387
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09777093.7A Active EP2318656B1 (de) | 2008-09-05 | 2009-07-10 | Meisselhalter mit schweissung als verschleissschutzelement |
Country Status (7)
Country | Link |
---|---|
US (1) | US8783785B2 (de) |
EP (1) | EP2318656B1 (de) |
CN (2) | CN201581895U (de) |
AU (1) | AU2009289875C1 (de) |
DE (1) | DE102008045825B3 (de) |
TW (1) | TWI405898B (de) |
WO (1) | WO2010025788A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216225A (zh) * | 2013-04-02 | 2013-07-24 | 三一重型装备有限公司 | 掘进机截割头及掘进机 |
CN105201501A (zh) * | 2015-09-15 | 2015-12-30 | 安徽澳德矿山机械设备科技股份有限公司 | 掘进机截齿用镶套型耐磨齿座 |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2009249704A1 (en) * | 2008-05-20 | 2009-11-26 | Sandvik Intellectual Property Ab | Carbide block and sleeve wear surface |
DE102008045825B3 (de) * | 2008-09-05 | 2010-05-27 | Wirtgen Gmbh | Meißelhalter für eine Schrämmaschine, Straßenfräse, Suface-Miner oder dergleichen |
CN101899980B (zh) * | 2010-08-03 | 2012-06-27 | 中铁十三局集团第二工程有限公司 | 一种盾构机刮刀刀座的保护刀 |
DE102010044649A1 (de) * | 2010-09-07 | 2012-03-08 | Bomag Gmbh | Wechselhaltersystem für einen Meißel |
DE102010061019A1 (de) * | 2010-12-03 | 2012-06-06 | Betek Gmbh & Co. Kg | Meißelhalter und Werkzeugunterteil für einen Meißelhalter |
GB201116414D0 (en) * | 2011-09-23 | 2011-11-02 | Element Six Holding Gmbh | Pick tool assembly, method for making same and method for refurbishing same |
US20130169023A1 (en) * | 2011-12-28 | 2013-07-04 | Sandvik Intellectual Property Ab | Bit Sleeve with Compression Band Retainers |
GB201202533D0 (en) * | 2012-02-14 | 2012-03-28 | Element Six Gmbh | Pick tool and method of using same |
DE102012101719A1 (de) | 2012-03-01 | 2013-09-05 | Wirtgen Gmbh | Meißelhalter |
USD772315S1 (en) * | 2013-04-11 | 2016-11-22 | Betek Gmbh & Co. Kg | Chisel |
DE102013110676A1 (de) * | 2013-09-26 | 2015-03-26 | Betek Gmbh & Co. Kg | Meißel |
DE102014014094A1 (de) * | 2013-10-01 | 2015-04-02 | Bomag Gmbh | Meißeleinrichtung und verschleißgeschützter Meißel für eine Bodenfräsmaschine |
AU2015227270A1 (en) * | 2014-03-07 | 2016-10-27 | Vermeer Manufacturing Company | Replaceable mounting apparatus for reducing elements |
DE102014112539A1 (de) | 2014-09-01 | 2016-03-03 | Wirtgen Gmbh | Verschleißschutzkappe |
WO2016061105A1 (en) * | 2014-10-17 | 2016-04-21 | Vermeer Manufacturing Company | Protective wear sleeve for cutting element |
USD742948S1 (en) * | 2014-12-11 | 2015-11-10 | Kennametal Inc. | Cutting bit |
USD742949S1 (en) * | 2014-12-11 | 2015-11-10 | Kennametal Inc. | Cutting bit |
USD778702S1 (en) * | 2016-01-11 | 2017-02-14 | Supplier Of Solutions, Llc | Tool support adapter block |
JP1572680S (de) * | 2016-02-22 | 2017-03-27 | ||
DE102016108808A1 (de) * | 2016-05-12 | 2017-11-16 | Betek Gmbh & Co. Kg | Meißel mit einem Stützelement mit einem Zentrieransatz |
DE102016122693A1 (de) * | 2016-11-24 | 2018-05-24 | POWER-TECHNOLOGIE GmbH | Hartmetalleinsatz für einen Rundschaftmeißel |
USD868122S1 (en) | 2017-02-22 | 2019-11-26 | Kennametal Inc. | Cutting bit |
CN106978776A (zh) * | 2017-04-13 | 2017-07-25 | 苏州凯通工程机械有限公司 | 一种用于道路铣刨机的带柄刀具 |
DE102018109150A1 (de) | 2018-04-17 | 2019-10-17 | Betek Gmbh & Co. Kg | Fräsmeißel |
DE102018109148A1 (de) * | 2018-04-17 | 2019-10-17 | Betek Gmbh & Co. Kg | Fräsmeißel |
DE102018109147A1 (de) | 2018-04-17 | 2019-10-17 | Betek Gmbh & Co. Kg | Fräsmeißel |
US11103939B2 (en) * | 2018-07-18 | 2021-08-31 | The Sollami Company | Rotatable bit cartridge |
AU201816544S (en) | 2018-08-01 | 2018-11-27 | Betek Gmbh & Co Kg | A chisel |
CN109025992B (zh) * | 2018-09-25 | 2024-01-05 | 温州宝通机械制造有限公司 | 一种用于挖沟机及采煤机刀座的刀座保护套 |
USD920401S1 (en) * | 2018-11-15 | 2021-05-25 | Caterpillar Inc. | Cutting tool |
CN110396907A (zh) * | 2019-07-30 | 2019-11-01 | 苏州五元素机械制造有限公司 | 一种刀架 |
USD909165S1 (en) * | 2019-08-27 | 2021-02-02 | Kennametal Inc | Adapter block |
CN110965444A (zh) * | 2020-01-13 | 2020-04-07 | 济南大学 | 一种角度可调的模块化铣刨装置及方法 |
USD989137S1 (en) * | 2021-08-05 | 2023-06-13 | Element Six Gmbh | Road milling and planing pick tool |
CN114908652B (zh) * | 2022-05-31 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | 铣刨刀头及其形成方法、铣刨转子和路面铣刨机 |
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DE29623215U1 (de) * | 1996-07-30 | 1998-01-02 | Betek Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co KG, 78733 Aichhalden | Werkzeug für eine Schrämmaschine |
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AU2009249704A1 (en) * | 2008-05-20 | 2009-11-26 | Sandvik Intellectual Property Ab | Carbide block and sleeve wear surface |
DE102008045825B3 (de) * | 2008-09-05 | 2010-05-27 | Wirtgen Gmbh | Meißelhalter für eine Schrämmaschine, Straßenfräse, Suface-Miner oder dergleichen |
-
2008
- 2008-09-05 DE DE102008045825A patent/DE102008045825B3/de active Active
-
2009
- 2009-07-10 AU AU2009289875A patent/AU2009289875C1/en not_active Ceased
- 2009-07-10 EP EP09777093.7A patent/EP2318656B1/de active Active
- 2009-07-10 US US13/061,790 patent/US8783785B2/en active Active
- 2009-07-10 WO PCT/EP2009/005009 patent/WO2010025788A1/de active Application Filing
- 2009-09-03 TW TW098129638A patent/TWI405898B/zh not_active IP Right Cessation
- 2009-09-07 CN CN2009201748048U patent/CN201581895U/zh not_active Expired - Lifetime
- 2009-09-07 CN CN200910168735.4A patent/CN101666229B/zh active Active
Non-Patent Citations (1)
Title |
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See references of WO2010025788A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103216225A (zh) * | 2013-04-02 | 2013-07-24 | 三一重型装备有限公司 | 掘进机截割头及掘进机 |
CN103216225B (zh) * | 2013-04-02 | 2015-06-10 | 三一重型装备有限公司 | 掘进机截割头及掘进机 |
CN105201501A (zh) * | 2015-09-15 | 2015-12-30 | 安徽澳德矿山机械设备科技股份有限公司 | 掘进机截齿用镶套型耐磨齿座 |
Also Published As
Publication number | Publication date |
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CN101666229A (zh) | 2010-03-10 |
US20110204702A1 (en) | 2011-08-25 |
AU2009289875C1 (en) | 2013-10-03 |
TW201014963A (en) | 2010-04-16 |
WO2010025788A1 (de) | 2010-03-11 |
DE102008045825B3 (de) | 2010-05-27 |
TWI405898B (zh) | 2013-08-21 |
US8783785B2 (en) | 2014-07-22 |
CN101666229B (zh) | 2015-10-14 |
AU2009289875B2 (en) | 2013-05-09 |
EP2318656B1 (de) | 2020-04-15 |
AU2009289875A1 (en) | 2010-03-11 |
CN201581895U (zh) | 2010-09-15 |
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