EP0223896A2 - Elément coupant d'une chaîne de havage - Google Patents

Elément coupant d'une chaîne de havage Download PDF

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Publication number
EP0223896A2
EP0223896A2 EP86101147A EP86101147A EP0223896A2 EP 0223896 A2 EP0223896 A2 EP 0223896A2 EP 86101147 A EP86101147 A EP 86101147A EP 86101147 A EP86101147 A EP 86101147A EP 0223896 A2 EP0223896 A2 EP 0223896A2
Authority
EP
European Patent Office
Prior art keywords
cutting
chain link
link according
dovetail
cutting chain
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.)
Withdrawn
Application number
EP86101147A
Other languages
German (de)
English (en)
Other versions
EP0223896A3 (fr
Inventor
Horst Weisner
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.)
Maschinenfabrik Korfmann GmbH
Original Assignee
Maschinenfabrik Korfmann 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 Maschinenfabrik Korfmann GmbH filed Critical Maschinenfabrik Korfmann GmbH
Priority to ES8602805A priority Critical patent/ES2003898A6/es
Publication of EP0223896A2 publication Critical patent/EP0223896A2/fr
Publication of EP0223896A3 publication Critical patent/EP0223896A3/fr
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14—Saw chains
    • B27B33/142—Cutter elements
    • B27B33/144—Cutter elements having cutting inserts or exchangeable cutting teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12—Saw-blades or saw-discs specially adapted for working stone
    • B28D1/124—Saw chains; rod-like saw blades; saw cables
    • B28D1/125—Saw chains; rod-like saw blades; saw cables with exchangeable cutter bits or cutter segments
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
    • E21C25/28—Chains or chain guides
    • E21C25/34—Chains
    • 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
    • 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

Definitions

  • the invention relates to a cutting chain link of a cutting chain for a cutting machine, with a receptacle for the releasable attachment of structures such as tool holders for broaching or cutting tools and / or deflectors, which are each adapted to the receptacle.
  • Both the cutting chain links and the structures attached to them are subject to wear, the cutting chain link being in operation for considerably longer. There must therefore be an easily detachable connection between the structure, for example a tool holder and the cutting chain link.
  • the invention proposes that the receptacle is formed from a dovetail guide that tapers against the chain running direction and that the adapted base of each structure is formed from a dovetail that tapers in the same way.
  • the invention provides fastening with the help of a screw benbolzen or the like in favor of an automatic clamp with the help of a conical dovetail.
  • the degree of tapering is selected so that the structures are held on the cutting chain link in a self-adhesive manner, so that no structures can fall off when the chain runs before the actual engagement.
  • the taper of a flank in relation to the center line corresponds to the ratio 1:50.
  • a dovetail guide Equivalent to a dovetail guide is a conical T-slot with a correspondingly shaped base, and this type of connection is also covered by the invention.
  • the dovetail guide has manufacturing advantages if the superstructures and each cutting chain link are made of investment casting that does not require any reworking.
  • the dovetail guide can either run continuously over the entire length of the cutting chain link or can be divided into several sections, the individual sections then being identical in terms of width and taper. In the former case, feet of different widths must be available for the arrangement of several superstructures, in the latter case, feet of identical design can be used.
  • a guide-free section for example in the form of an opening, can be present between the same sections of the dovetail guide, in order to be able to effect the assembly and disassembly of a single assembly without influencing the adjacent assembly.
  • an essentially inseparable connection between a cutting badge and the tool holder can be accepted, for example in the form of hard-soldered STRATAPAX R badges.
  • the cutting chain link 1 shows a preferred exemplary embodiment of a cutting chain link 1.
  • the cutting chain link 1 is assembled with the aid of link links 2 and further, identical cutting chain links 1 to form a chain, which is not shown in detail.
  • the tools of a plurality of cutting chain links 1 together first form the entire cutting profile, and one or more tools can be assigned to each cutting chain link 1.
  • Each cutting chain link 1 is fastened to the link link 2 with the aid of a chain pin and a clip 4, the latter taking over the lateral fixing of the bearing as a result of the bent ends after the mounting of the chain pin 3.
  • a dovetail guide 6 On the side of the cutting chain link 1 facing the rock there is a dovetail guide 6 which overall has a continuous taper of 1:50 per side and is interrupted by an opening 9 between the sections 7 and 8. It can clearly be seen that the opening 9 is wider than the widest point in the cutting direction of the rear section 8 of the dovetail guide 6.
  • the dovetail guide 6 can be at the front end of the cutting chains limb 1 a deflector 12 and a tool holder 13 are used at the rear end, each of which is equipped on its feet with a dovetail 14.
  • the dovetail 14 of the tool holder 13 is narrower than that of the deflector 12, so that, despite the continuous tapering of the dovetail guide 6, the tool holder 13 in the area of the rear section 8 and the deflector 12 in the area of the front section 7 is firmly seated when light Hammer blows the final working position has been reached.
  • the length of the tool holder 13 in the cutting direction is chosen to be shorter than the length of the opening 9, so that the tool holder 13 can be removed from the dovetail guide 6 in the region of the opening 9 without having to dismantle the deflector 12.
  • the breakthrough 9 serves for easier access to the deflector 12 if this is to be removed separately.
  • a cutting badge 16 is fastened to the tool holder 13 by means of a threaded bolt 20 and a washer 18 and a serrated lock washer 19.
  • the cutting badge 16 consists, for example, of hard metal with cutting elements 17 of PCD material. Details of the cutting badge 16 are described in more detail in FIGS. 3 to 12.
  • the tool holder 13 there are contact surfaces 23 and, of course, a threaded bore 22 for the threaded bolt 20.
  • the contact surfaces 23 serve to better support the cutting badges in the installed state. It has already been mentioned at the beginning that the position of the individual tools on each cutting chain link 1 differs at least in sequence.
  • the tool holder 13 shown in FIG. 1 is therefore only shown by way of example; on the subsequent cutting chain link 1, for example, the same cutting badge 16 has been used, but not on the tip, but on standing on one side edge. At the end of a sequence, there can also be two cutting badges per tool holder 13.
  • the dovetail guide 6 ' is located in a separate tool carrier 25 which is fastened in a conventional manner to the cutting chain link 1' with the aid of clamping sleeves 26.
  • the dovetail guide 6 ' only serves to fasten the deflector 12, while the tool holder 13' is an integral part of the tool carrier 25. Otherwise there are no differences.
  • This embodiment is intended to clarify that the invention also includes those embodiments in which only a single structure in the form of the deflector 12 is held with the help of a dovetail guide 6 'and a correspondingly designed foot with a dovetail 14.
  • FIGS. 3 to 12 for a screw-on cutting badge 16 consist, for example, of hard metal, into which parts made of polycrystalline diamond material are embedded.
  • a bore 21 is provided for the central attachment.
  • This construction of the cutting badge is superior to a conventional S T R A T A P A X R badge insofar as there is the possibility of producing the cutting tool as a molded part of predetermined dimensions and shape.
  • This allows not only a central bore for attaching the cutting tool in the holder of the tool holder but above all a shape that, for example, corresponds exactly to the shape of the cutting tools made of pure hard metal, which are produced and used in the desired shape in a corresponding sintering process.
  • the cutting badges with PCD material can be easily used on corresponding chains on which only hard metal was previously used.
  • the cutting badge 16 in the form shown or, for example, as a STRATAPAX R badge soldered firmly onto the tool holder 13 at the rear end of the cutting chain link 1 brings about a certain righting moment when cutting, which can lead to the chain link being straightened up if the chain is not tightly tensioned .
  • the deflector 12 is provided, which is supported on the cutting surface of the rock material during a corresponding uprighting movement. This prevents the chain from tearing.
  • it can be equipped with hard metal or PCD material on its end face, so that an extremely long service life can be expected. This embodiment is not shown.
  • the dovetail guide 6 in connection with the dovetail 14 on the respective superstructures means that the seat of the superstructures cannot loosen when the cutting load is applied, but rather better anchoring occurs.
  • a few preselected hammer blows achieve a pre-tensioned seat during assembly, which will not change later in operation. So there is normally no movement between each dovetail 14 and the dovetail guide 6. Therefore, no fretting corrosion can form at this point.
  • disassembly is also particularly easy, due to light hammer blows in the cutting direction is effected.
  • the dovetail guide can be cleaned extremely easily, for example with the help of a water jet and a scraping tool, since there are no projections or threads that could become clogged.
  • An inclination of 56 ° has proven itself as the flank angle; With this configuration, cheap clamp seats and high strength are achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP86101147A 1985-10-30 1986-01-29 Elément coupant d'une chaíne de havage Withdrawn EP0223896A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8602805A ES2003898A6 (es) 1985-10-30 1986-10-28 Elemento de cadena cortante de una cadena dentada para una maquina cortadora de carbon

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8530697U 1985-10-30
DE8530697U DE8530697U1 (de) 1985-10-30 1985-10-30 Schneidwerkzeug für Schrämketten an einer Schrämmaschine

Publications (2)

Publication Number Publication Date
EP0223896A2 true EP0223896A2 (fr) 1987-06-03
EP0223896A3 EP0223896A3 (fr) 1987-08-26

Family

ID=6786754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101147A Withdrawn EP0223896A3 (fr) 1985-10-30 1986-01-29 Elément coupant d'une chaíne de havage

Country Status (2)

Country Link
EP (1) EP0223896A3 (fr)
DE (1) DE8530697U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468214A1 (fr) * 1990-07-25 1992-01-29 General Electric Company Plaquette de coupe utilisant des comprimés superabrasives
ITRM20130173A1 (it) * 2013-03-22 2014-09-23 Fantini Sud S P A Catena con maglie esterne componibili, per macchine segatrici a catena di pietre ornamentali.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961572B1 (fr) * 2010-06-22 2014-02-07 Sebastien Guerif Maillon exterieur presentant des tourillons a pivotement libre et chaine dotee de tels maillons.
EP3150882A1 (fr) 2015-09-30 2017-04-05 Guerif, Sébastien Élément modulaire de chaîne présentant des tourillons à pivotement libre et couples de frottement équilibrés, et chaînes dotées de tels éléments

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB241110A (en) * 1925-04-18 1925-10-15 Frederick Wilson Hurd Improvements in or relating to mining machines
US3820849A (en) * 1972-12-01 1974-06-28 Sandvik Ab Cutting tips removably secured in milling cutter head
FR2345610A1 (fr) * 1975-08-01 1977-10-21 Cincinnati Mine Machinery Co Dispositif pour fixer un porte-outil sur un element support
FR2530170A1 (fr) * 1982-07-13 1984-01-20 Asahi Diamond Ind Scie circulaire a segments rapportes diamantes
GB2136481A (en) * 1983-03-18 1984-09-19 Wilmet Mining Limited Cutter tool boxes and cutter assemblies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB241110A (en) * 1925-04-18 1925-10-15 Frederick Wilson Hurd Improvements in or relating to mining machines
US3820849A (en) * 1972-12-01 1974-06-28 Sandvik Ab Cutting tips removably secured in milling cutter head
FR2345610A1 (fr) * 1975-08-01 1977-10-21 Cincinnati Mine Machinery Co Dispositif pour fixer un porte-outil sur un element support
FR2530170A1 (fr) * 1982-07-13 1984-01-20 Asahi Diamond Ind Scie circulaire a segments rapportes diamantes
GB2136481A (en) * 1983-03-18 1984-09-19 Wilmet Mining Limited Cutter tool boxes and cutter assemblies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0468214A1 (fr) * 1990-07-25 1992-01-29 General Electric Company Plaquette de coupe utilisant des comprimés superabrasives
ITRM20130173A1 (it) * 2013-03-22 2014-09-23 Fantini Sud S P A Catena con maglie esterne componibili, per macchine segatrici a catena di pietre ornamentali.

Also Published As

Publication number Publication date
EP0223896A3 (fr) 1987-08-26
DE8530697U1 (de) 1985-12-12

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Inventor name: WEISNER, HORST