EP3332092A1 - Dispositif de coupe - Google Patents

Dispositif de coupe

Info

Publication number
EP3332092A1
EP3332092A1 EP16736880.2A EP16736880A EP3332092A1 EP 3332092 A1 EP3332092 A1 EP 3332092A1 EP 16736880 A EP16736880 A EP 16736880A EP 3332092 A1 EP3332092 A1 EP 3332092A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting device
carrier
head
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
Application number
EP16736880.2A
Other languages
German (de)
English (en)
Other versions
EP3332092B1 (fr
Inventor
Thomas Allgaier
Ulrich Krämer
Günter HÄHN
Thomas Lehnert
Karsten Buhr
Cyrus Barimani
Heiko Friederichs
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
Betek GmbH and Co KG
Original Assignee
Wirtgen GmbH
Betek GmbH and Co KG
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, Betek GmbH and Co KG filed Critical Wirtgen GmbH
Publication of EP3332092A1 publication Critical patent/EP3332092A1/fr
Application granted granted Critical
Publication of EP3332092B1 publication Critical patent/EP3332092B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/122—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus
    • E01C23/127—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with power-driven tools, e.g. oscillated hammer apparatus rotary, e.g. rotary hammers
    • 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
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0926—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters
    • E01C23/0933—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with power-driven tools, e.g. vibrated, percussive cutters rotary, e.g. circular-saw joint cutters
    • 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
    • E21C35/1833—Multiple inserts
    • 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
    • E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
    • 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
    • E21C35/1933—Means for fixing picks or holders using bolts as main fixing elements the picks having a cylindrical shank

Definitions

  • the invention relates to a cutting device for a tillage machine, in particular a road milling machine with a carrier to which a cutting insert is attached, wherein the carrier has a base portion on which a holding attachment with a receptacle is attached, wherein the cutting insert at least partially disposed in the receptacle is and wherein a fastening lug is disposed on a mounting side opposite the holding approach.
  • the invention further relates to a cutting device for a tillage machine, in particular a road milling machine with a carrier to which a cutting insert is attached, wherein the carrier has a base part, wherein on a mounting side of the base part, a fastening lug is arranged.
  • the cutting device comprises a base part and a carrier which in the context of the invention can also be referred to as a bit holder.
  • the base part can be mounted on a cutting roll of a tillage machine.
  • the bit holder is inserted with its retaining lug in a socket of the base part and can be fixed here with a fixing screw.
  • the chisel holder itself has a chisel holder in one Round shank chisel exchangeable can be added.
  • the round shank chisel usually has a chisel head and a chisel shank. With the chisel shank the round shank chisel is inserted into the chisel holder.
  • the head carries a cutting tip made of tungsten carbide.
  • the cutting devices known from DE 10 2011 051 520 B4 are designed to be optimized in terms of wear.
  • a wear system is formed in which the round shank chisel forms the actual wear part.
  • the chisel holder survives a variety of chisel changes until it reaches its wear limit.
  • the expensive base part has to be changed relatively seldom.
  • a super-hard material for example, one of the following materials can be used:
  • Diamond monocrystalline diamond, polycrystalline diamond, sintered diamond, chemically deposited diamond, physically deposited diamond, natural diamond, infiltrated diamond, diamond films, thermally stable diamond, silicon bonded diamond, silicon carbide, cubic boron nitride, and compounds of the foregoing.
  • a superhard material is to be understood as meaning, in particular, a material having a hardness in the range between 80 and 130 GPa.
  • Cutting elements with superhard material are known for example from US 7,600,823 B2.
  • This object is achieved in that the cutting insert has a cutting tip with a superhard material, and that the holding lug carries a hard material element at least at its front region in the feed direction in the zone between the cutting tip and the base part.
  • the holding approach is provided at least at its front in the feed direction region in the zone between the cutting tip and the base part with a hard material element.
  • the hard material element is arranged according to the invention on the holding lug. The arrangement is deliberately made so that the hard material element is arranged in the forward feed direction.
  • this also allows the service life of the superhaten cutting tip and the carrier tune to each other, so that they reach their wear limit in an optimal design in about the same time.
  • the cutting insert is held non-rotatably in the carrier. In this way, vibrations during tool engagement are reduced, which could lead to breakage of the superhard material.
  • the cutting insert has a head to which the cutting tip is attached, and that the head at least partially consists of a material which has a wear resistance smaller than the cutting tip but larger than the material of the holding lug.
  • the materials can be matched to each other cost-effectively, with the aim of achieving uniform wear on the wearer.
  • a cutting system is generated in which the cutting tip and the carrier simultaneously reach their wear limit in the optimized state.
  • the head can be made of hard metal.
  • a conceivable variant of the invention is the shape that the cutting insert has a shaft, with which it is inserted into the receptacle of the holding lug.
  • the cutting insert is pressed into the receptacle or received in this material fit, for example, soldered in the recording.
  • the shaft With the shaft, a stable support of the cutting insert can be achieved.
  • it can be aligned exactly in the recording, so that a reproducible production is easily possible.
  • a conceivable alternative of the invention is such that the cutting insert forms a concave transition in the transition region between the head and the shaft, that the receptacle forms a convex transition in this region, and that a gap region filled with composite material, in particular solder material, is created in the region of these transitions is.
  • a production-optimized construction is created.
  • damaging stresses in the transition region between the head and the shaft can be reduced, so that a break during tool use in this area is excluded.
  • this construction has proven to be advantageous because notches are significantly reduced during operation. This has particular advantages when low milling depths are to be processed. In this case, some significant lateral forces occur.
  • a particularly preferred variant of the invention is such that the head of the cutting insert widened starting from the cutting tip in the direction of the holding approach.
  • the head forms a bleed surface which can be configured in geometry so that the removed and head-on-ground material can be conducted away from the backing material to reduce wear.
  • a possible variant of the invention is such that the cutting tip has a support body, which is connected to the head of the cutting insert, preferably soldered, that one or more intermediate layers are applied to the support body, that applied to the outermost, the support body side facing away from the intermediate layer, a cover layer is, and that the material of the cover layer is harder than the material of the intermediate layer.
  • a possible variant of the invention is such that the hard material element is formed by an order hardening, for example a build-up welding, a plasma coating hardening or the like and / or that the hard material element is formed by one or more hard material segments, which are connected to the holding approach.
  • an order hardening for example a build-up welding, a plasma coating hardening or the like and / or that the hard material element is formed by one or more hard material segments, which are connected to the holding approach.
  • a cutting device can also be designed, in which the holding attachment facing away from the base part has a support section, that the cutting insert at least partially covers the support section with its head, and that the hard material element is guided under the head into the region of the support section.
  • a particularly preferred variant of the invention is the form that the cutting insert has a deflector surface, which is designed to at least partially bypass the base material removed by the cutting tip on the base part of the carrier. As a result, the wear on the carrier wear is significantly reduced.
  • the hard material element is arranged in an arcuate manner around the receptacle of the, for example, cylindrical holding lug, or is applied in a circular manner on the holding lug around the receptacle.
  • the hard material element can be arranged over an arc in the range between 5 to 360 degrees.
  • the arcuate hard material element extends in the circumferential direction and in the feed direction in front of the cutting insert over a length which is greater than the diameter or the maximum cross-sectional dimension of the receptacle. In this way, the Recording area for the cutting insert effectively and easily protected against wear.
  • the hard material element has an extension in the direction of the central longitudinal axis of the receptacle, which is equal to or greater than the height of the receptacle in this direction.
  • the object of the invention is also achieved with a cutting device for a tillage machine, in particular a road milling machine with a carrier to which a cutting insert is attached, wherein the carrier has a base part, wherein on a mounting side of the base part, a fastening lug is arranged.
  • the cutting device is designed in such a way that the base part carries a cutting element fixedly connected to the carrier on a side facing away from the fastening side, the cutting element carrying a cutting tip of superhard material, the cutting element carrying a fastening piece, opposite to the direction of advance Attachment is connected at the back, and that the attachment piece and the approach are supported with bearing surfaces relative to the carrier.
  • the forwardly arranged in the feed direction attachment piece derives the removed soil material safely from the cutting tip.
  • the inventor has recognized that initially the highest wear pressure prevails in the area of the cutting tip.
  • the super hard cutting tip captures this wear safely.
  • the soil material expands in the direction of flow, whereby the wear pressure continuously decreases.
  • This still high wear pressure is safely trapped on the attachment piece. If the soil material has passed through the attachment piece, it enters an expansion state, which can be safely absorbed by the carrier, which consists for example of steel material. In this way, a highly effective wear system is created.
  • this invention according to the rear approach, which is supported against the carrier. That way you can Safely derive bending stresses.
  • the rearward approach continues to protect the rearward support area from leaching.
  • attachment piece and the approach is supported by the intermediary of a material connection, in particular solder material relative to the carrier
  • the cutting element may be formed of a hard material, such as hard metal, which is sensitive to breaking stresses. Now, if a cohesive support is made, so can be avoided in the support area harmful gap areas in favor of a secure fracture-resistant support.
  • the attachment piece is arranged in the feed direction in front of a holding lug of the carrier and covers it at least in certain areas.
  • the cutting element can be kept exposed over the base part of the carrier and the attachment piece thus protects the holding lug. In this way, an aggressive cutting geometry can be realized.
  • a conceivable alternative of the invention is such that the attachment piece on opposite sides in the feed direction has inclined deflector surfaces which are designed to discharge abraded soil material in the direction of the sides of the carrier.
  • the cutting tip is preferably formed asymmetrically and, for example, the cutting tip of the cutting element in its radially outer region has a larger volume than in its radially inner region. This way will formed in the radially outer, and the cutting engagement most exposed area increased wear volume.
  • a secure support of the cutting tip can be achieved in that the cutting tip is supported with a connecting piece on the head of the cutting element opposite to the feed direction.
  • Figure 1 shows a carrier 10, which consists of a steel material.
  • the carrier 10 has a base part 11 with a mounting side and a machining side.
  • four support surfaces 12 are arranged. These support surfaces 12 are at an angle to each other.
  • front and rear support surfaces 12 are provided.
  • the front support surfaces 12 extend in the region of the underside of a skirt 13 of the base part 11.
  • the skirt 13 is arranged at the front in the feed direction.
  • a fastening lug 14 is arranged in the region of the attachment side of the carrier 11.
  • the attachment lug 14 may also be formed as a plug-in approach, as shown by way of example Figure 1.
  • the attachment lug 14 may have a fastening receptacle 15 opposite the feed direction on the reverse side. Front side of the attachment lug 14 has two support surfaces 16, which are arranged spaced apart via a franking 17.
  • the attachment receptacle 15 is designed to receive the end of a pressure screw.
  • the pressure screw brings about the fastening receptacle extending in the direction of the longitudinal extent of the attachment lug 14 Einziehkraft in the mounting boss 14 a. In this case, this force does not act alone in the direction of the longitudinal axis of the attachment lug 14, but also presses the two front support surfaces 16 on corresponding mating surfaces of a Komhalterunterteils.
  • the base part 11 carries a holding lug 20.
  • the holding lug 20 projects, as shown in FIG. 1, over the base part 11 with a preferably cylindrical projection.
  • End side of the holding lug 20 has a cone-shaped taper.
  • the free end of the cone-shaped taper is formed by a support portion 24.
  • In the support portion 24 has a bore is incorporated, which forms a receptacle 21.
  • the holding lug 20 in the field of Conical surface 23 circumferentially occupied by a hard material element 22. This hard material element 22 is executed as a contract welding.
  • a cutting insert 30 is set in the receptacle 21, a cutting insert 30 is set.
  • the cutting insert 30 has a cutting tip 31, whose structure will be explained later.
  • the cutting tip 31 is connected via a connecting piece 32, for example consisting of hard metal with a head 33 of the cutting insert 30 in connection.
  • a shaft 34 is formed at the head 33.
  • the shaft 34 is inserted into the receptacle 21.
  • the consisting of head 33 and shaft 34 component may for example consist of hard metal.
  • the hardness of this component is chosen to be greater than the hardness of the carrier 10 but less than the hardness of the cutting tip 31st
  • the shaft 34 merges into the head 33 via a concave transition.
  • the opposite receiving area of the receptacle 21 is correspondingly convex.
  • a gap region which is filled with solder material 35, forms between the shaft 34 and the receptacle 21.
  • the head 33 is supported on the support section 24 by means of soldering material. This is advantageous because a risk of breakage is avoided via this gap-free connection.
  • the concave / convex surface pairing voltage peaks in the transition region between the shaft 34 and head 33 are reduced.
  • the solder material 35 may also be provided any other cohesive connection.
  • the shaft 34 has shrunk into the receptacle 21.
  • the hard material element 22 which circumscribes the holding lug 20 in the region of the conical surface 23.
  • the hard material element 22 is formed and arranged so that it completely covers the height of the receptacle 21 with its height h in order to provide suitable protection against washouts.
  • the build-up welding does not always have the same thickness. Rather, a varying thickness is conceivable in order to achieve an adapted wear behavior.
  • the thickness of the hard material element 22 decreases in the direction of the central longitudinal axis of the cutting insert.
  • the hard material element 22 may be applied circumferentially.
  • the hard material element 22 is arranged over an arc region on the holding lug 20, as shown in FIGS. 3 and 4.
  • the arc length l in the circumferential direction of the holding lug 20 should be larger than the diameter of the receptacle 21 or larger than the diameter of the head 33.
  • the hard material element 22 does not have to have the same thickness in the circumferential direction. Rather, it can also be provided that the thickness varies in the circumferential direction, preferably decreases opposite to the feed direction.
  • the hard material element 22 is formed by hard material segments which are mounted on the holding lug 20.
  • the hard material elements 22 may be formed, for example, by hard metal elements, which are attached to the retaining lug 22 in a material-locking manner.
  • the hard material elements 22 may be formed by hard material segments 22.
  • the hard material segments 22.1 may be plate-shaped. It is also conceivable that, as shown in Figure 6, the hard material segments 22.1 have a cover portion 22.2, where a mounting lug 22.3 is formed. With the attachment lug 22.3, the hard material segments 22.1 are introduced into fastening receptacles 22.4 of the holding lug 22.
  • FIG. 7 shows, by way of example, the construction of the cutting tip 31.
  • a support body 31.1 for example, consisting of hard metal used, on which an intermediate layer 31.2 is stacked. It is also conceivable that two or more intermediate layers 31.2 are used.
  • the cover slip 31.3 preferably has a proportion of polycrystalline diamond.
  • the intermediate layer 31.2 has a proportion of polycrystalline diamond.
  • the proportion of the polycrystalline diamond in the cover layer 31.3 is higher than in the intermediate layer 31.2.
  • the carrier 10 essentially corresponds to the configuration of the carrier 10 according to FIG. 1, so that only the differences are discussed below.
  • the carrier 10 according to FIG. 8 has a holding projection 25, which is formed on the base part 11 facing away from the attachment lug 14.
  • the retaining lug 25 has two mutually angled bearing surfaces 26 and 27.
  • the support surface 27 is directed in the feed direction V
  • the support surface 26 is directed opposite to the feed direction.
  • the cutting element 40 is placed on the intermediary of a cohesive connection, for example a solder connection.
  • the cutting element 40 has a head 43, which forms a fastening piece 45.
  • the attachment piece 45 has laterally two deflector surfaces 46 inclined in the feed direction.
  • a projection 44 is integrally formed.
  • the cutting element 40 rests with the attachment piece 43 and the projection 44 on the bearing surfaces 26 and 27, as described above.
  • the head 43 also carries a cutting tip 31, which is in principle similar to the cutting tip 31 according to the embodiments of Figures 1 to 7.
  • the cutting tip 31 is constructed asymmetrically to its central longitudinal axis and has a larger volume in its radially outer region than in its radially inner region. Thus, an increased wear volume is offered in the region of the outer cutting edge of the cutting tip 31.
  • the cutting tip 31 is supported via the connecting piece 32 opposite to the feed direction on the head 33 and is attached here, preferably attached to a material connection, in particular a solder joint.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Road Repair (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Turning (AREA)
  • Details Of Cutting Devices (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

L'invention concerne un dispositif de coupe pour engin de terrassement, comprenant une protection anti-usure améliorée.
EP16736880.2A 2015-08-06 2016-07-11 Dispositif de coupe Active EP3332092B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015112988.4A DE102015112988A1 (de) 2015-08-06 2015-08-06 Schneideinrichtung
PCT/EP2016/066430 WO2017021104A1 (fr) 2015-08-06 2016-07-11 Dispositif de coupe

Publications (2)

Publication Number Publication Date
EP3332092A1 true EP3332092A1 (fr) 2018-06-13
EP3332092B1 EP3332092B1 (fr) 2022-09-21

Family

ID=56404124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16736880.2A Active EP3332092B1 (fr) 2015-08-06 2016-07-11 Dispositif de coupe

Country Status (7)

Country Link
US (1) US10801322B2 (fr)
EP (1) EP3332092B1 (fr)
JP (1) JP6856622B2 (fr)
CN (2) CN107923242B (fr)
AU (1) AU2016304316B2 (fr)
DE (1) DE102015112988A1 (fr)
WO (1) WO2017021104A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102015112988A1 (de) 2015-08-06 2017-02-09 Betek Gmbh & Co. Kg Schneideinrichtung
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
DE102017011131A1 (de) * 2017-12-01 2019-06-06 Bomag Gmbh Hochverschleißfester, einstückiger Meißelspitzenkörper, Fräsmeißel für eine Bodenfräsmaschine, Fräswalze sowie Bodenfräsmaschine
USD906385S1 (en) * 2020-01-21 2020-12-29 Wirtgen Gmbh Chisel holder
WO2022233589A1 (fr) * 2021-05-03 2022-11-10 Betek Gmbh & Co. Kg Procédé de production d'un matériau de carbure cémenté ayant une phase liante renforcée

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CN107923242B (zh) 2022-07-19
CN114592419B (zh) 2025-06-27
JP6856622B2 (ja) 2021-04-07
US10801322B2 (en) 2020-10-13
EP3332092B1 (fr) 2022-09-21
AU2016304316A1 (en) 2018-02-22
DE102015112988A1 (de) 2017-02-09
JP2018522154A (ja) 2018-08-09
AU2016304316B2 (en) 2020-02-06
CN114592419A (zh) 2022-06-07
WO2017021104A1 (fr) 2017-02-09
CN107923242A (zh) 2018-04-17
US20180223660A1 (en) 2018-08-09

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