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WO1996031681A1 - Outil de deverrouillage d'un dispositif de securite d'un pic - Google Patents

Outil de deverrouillage d'un dispositif de securite d'un pic Download PDF

Info

Publication number
WO1996031681A1
WO1996031681A1 PCT/EP1996/001200 EP9601200W WO9631681A1 WO 1996031681 A1 WO1996031681 A1 WO 1996031681A1 EP 9601200 W EP9601200 W EP 9601200W WO 9631681 A1 WO9631681 A1 WO 9631681A1
Authority
WO
WIPO (PCT)
Prior art keywords
chisel
fuse
tool
joint
coupling element
Prior art date
Application number
PCT/EP1996/001200
Other languages
German (de)
English (en)
Inventor
Karl Kammerer
Helmut Widmaier
Original Assignee
Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & 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 Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg filed Critical Betek Bergbau- Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg
Priority to DE59601008T priority Critical patent/DE59601008D1/de
Priority to EP96908086A priority patent/EP0817902B1/fr
Publication of WO1996031681A1 publication Critical patent/WO1996031681A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/19—Means for fixing picks or holders
    • E21C35/197—Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
    • 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
    • E21C35/188—Mining picks; Holders therefor characterised by adaptations to use an extraction tool
    • 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

Definitions

  • the invention relates to a tool for releasing a fuse that axially secures a shaft of a chisel of a cutting, road milling machine or the like in a bore of a chisel holder.
  • the shank of the individual chisels is inserted through through holes in the chisel holder.
  • the chisel strikes with its chisel head, which carries the shank, around the bore entry.
  • the shaft protrudes from the bore on the side facing away from the chisel head.
  • the cylindrical shaft is provided with a circumferential groove.
  • the fuse designed as a slotted ring is inserted into this groove. Since a chisel wears out after a certain operating time, it is often necessary to exchange it for one new chisels are made. For replacement, the fuse is usually knocked out of the groove using a mandrel with the aid of a hammer. The fuse jumps off the shaft in an uncontrolled manner and is usually lost. In addition, the detaching fuse creates a considerable risk of injury.
  • the object of the invention is achieved in that at least one approach is carried by a coupling element, which is inserted into a tool holder of the fuse, that a lever is connected to the coupling element via a joint, which lever is connected to the chisel holder, the chisel or by means of a support element another machine part can be supported, the support element being at a distance from the joint.
  • the approaches are coupled into the tool holders.
  • the lever is then flipped over the support element in such a way that the securing element is removed from the shaft of the chisel with the coupling element.
  • the speed of the fuse pulling movement can be controlled via the lever.
  • the effort to release the fuse is low. This means that the fuse can be removed from the chisel easily and in a controlled manner.
  • the handle has a shaft which is connected to the joint (33) and that the shaft carries a handle on its side facing away from the joint.
  • the handle can be easily adjusted manually using the handle.
  • a tool according to the invention is characterized in that the support ement is integrally formed on the shaft and is supported on a counter surface of the chisel holder, and that the support element is formed in an arc on the side facing the counter surface, so that it rolls on the counter surface when the handle is actuated.
  • the approaches defined in the tool holders of the fuse are shifted linearly when the lever is actuated, so that the fuse can be pulled off the shaft on a predetermined path without tilting.
  • a simple joint connection is created in that the handle for forming the joint is provided with a bolt receptacle which rotatably receives a bolt which is carried by the coupling element and whose longitudinal axis forming the joint axis runs transversely to the central longitudinal axis of the chisel.
  • the coupling element on the side facing away from the joint has two spaced-apart legs, which carry at their free ends the lugs which, in the direction of the central longitudinal axis of the chisel, on the side facing away from the chisel holder, into the tool holders for securing the shank of the chisel form-fitting to the tool holders, then the tool can be easily brought into operative connection with the fuse.
  • the coupling element carries at least one magnet which cooperates with a ferromagnetic point of the fuse.
  • a defined actuating movement is achieved in that the actuating movement of the lever for releasing the securing means can be limited by means of a stop. - 4 -
  • the handle wears hand protection, then it is prevented that a user's hand is injured when the lever is turned.
  • a further embodiment of the invention is characterized in that the joint can be locked by means of a connecting part, that the lever has force introduction means, via which a force can be introduced in the direction of the coupling element, and that the force via active surfaces of the coupling element in corresponding Counter surfaces of the fuse can be inserted so that the fuse can be mounted on the shaft (22) of the chisel (20). Accordingly, the tool can be used both for assembling and disassembling the fuse.
  • FIG. 1 is a side view and partly in section of a holder inserted in a chisel holder and a tool for dismantling a fuse
  • FIG. 2 shows the representation according to FIG. 1 with a modified tool position
  • Fig. 3 shows the use of the tool according to Figure 1 for mounting the fuse.
  • FIG. 1 shows a chisel holder 11 as is typically placed on roller bodies of cutting or road milling machines.
  • the chisel holder 10 has a base part 11 which is fixed on the roller-shaped body.
  • the chisel holder 10 is penetrated by a bore 12.
  • a shaft 22 of the chisel 20 is inserted into the bore 1 2.
  • the shaft 22 carries a chisel head 21.
  • the shaft 22 is inserted, the strikes Chisel head 21 around bore 12 at the drill hole entry on chisel holder 10. The insertion movement of the chisel 20 into the bore 12 is thus limited.
  • the chisel head 21 On the side facing away from the shaft 22, the chisel head 21 has a recess 24 into which a chisel tip 23 is inserted.
  • the chisel tip 23 is designed as a hard metal insert and is soldered in the recess 24.
  • the shank 22 On the side facing away from the bit head 21, the shank 22 protrudes from the bore 12. In the area of this borehole exit, a circumferential groove 25 is made in the cylindrical shaft 22.
  • a fuse 40 is inserted into the groove 25.
  • the fuse 40 has a slotted, ring-shaped base body, which partially surrounds the shaft 22 in the groove base.
  • a tool 30 is used to release the fuse 40 from the groove 25.
  • the tool 30 has a coupling element 35 with integrally formed lugs 37.
  • the lugs 37 protrude into the tool holders 41 of the fuse.
  • the lugs 37 are connected to legs 36 which are arranged at a distance from one another and thus form a receptacle 38 which partially encloses the fuse laterally.
  • the coupling element 35 is pierced by a bore in which a bolt 33b is fixed.
  • the bolt 33b is inserted through a bolt receptacle 33a, designed as an elongated hole, of a shank 32 of the tool 30.
  • a joint 33 is formed, the axis of which is formed by the axis of the bolt 33b.
  • the hinge axis is arranged transversely to the central longitudinal axis of the chisel 20.
  • the shaft 32 carries a support element 39 at a distance from the joint 33.
  • the support element 39 has a convexly curved geometry and serves to support the shaft 32 on the chisel holder 10.
  • a handle 31 is in the free end of the shaft 32 Formed a handle made of plastic material and a lever 34 is formed. The handle 31 is completed with an impact protection 52.
  • the shaft 32 of the lever 34 protrudes over the impact protection 52 A little way out.
  • the force introduction means 51 designed in this way serves to introduce an impact force into the central longitudinal axis of the shaft 32.
  • a connecting part 50 is attached to the side of the shaft 32 facing away from the force introduction means 51.
  • the connecting part 50 is formed as a pin which can be inserted into a corresponding receptacle of the coupling element 35 when the central longitudinal axis of the shank 32 is perpendicular to the central longitudinal axis of the chisel 20.
  • the lugs 37 are first fixed in the tool holders 41 of the fuse 40.
  • the lever 34 is then flipped over in such a way that the support part 39 rests on the corresponding counter surface on the bit holder 10.
  • the lugs 37 are positively supported in the tool holders 41.
  • the lever 34 is now turned further, as shown in more detail in FIG. 2, the support part 39 rolls on the chisel holder 10.
  • the end of the lever 34 facing the joint 33 is thereby raised.
  • a force is introduced into the coupling element 35 via the bolt 33b. This force acts perpendicular to the central longitudinal axis of the chisel 20.
  • the coupling element 35 also shifts perpendicular to the central longitudinal axis of the chisel 20. Since the lugs 37 hold the fuse 40 in a form-fitting manner on the coupling element 35, it is pulled out of the groove 25.
  • the chisel 20 can now be pulled out of the bore 22 and exchanged for a new chisel 20. Furthermore, the tool 33 can be lifted off the chisel holder 10. Here, the loss of the fuse 40 is reliably prevented by inserting a magnet into the coupling element 35, which holds the ferromagnetic fuse 40. Alternatively, the fuse can also be held by a mechanical clamping device.
  • the fuse 40 can be pulled out of the groove 25 of the chisel 20 in a controlled manner with only a small amount of force. Because the shaft 32 can be rigidly connected to the coupling element 35 with the connecting part 50, the tool enables the fuse 40 to be mounted on a new chisel 20.

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)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un outil (30) destiné à déverrouiller un dispositif de sécurité (40) qui assure le blocage axial de la tige (22) du pic (20) d'une haveuse, d'une fraiseuse pour travaux routiers ou d'une machine équivalente, dans un orifice pratiqué dans un porte-pic. Un déverrouillage contrôlé du dispositif de sécurité (40) est possible si un élément d'accouplement (35) de l'outil supporte au moins un épaulement, lequel est introduit dans un raccordement d'outil du dispositif de sécurité (40), si un levier (34) et raccordé à l'élément d'accouplement par une articulation (33), le levier pouvant s'appuyer sur le porte-pic, le pic ou une autre partie de la machine par un élément d'appui (39) et l'élément d'appui étant distant de l'articulation.
PCT/EP1996/001200 1995-04-01 1996-03-20 Outil de deverrouillage d'un dispositif de securite d'un pic WO1996031681A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59601008T DE59601008D1 (de) 1995-04-01 1996-03-20 Werkzeug zum lösen einer sicherung an einem bohrmeissel
EP96908086A EP0817902B1 (fr) 1995-04-01 1996-03-20 Outil de deverrouillage d'un dispositif de securite d'un pic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19512349.2 1995-04-01
DE19512349A DE19512349C1 (de) 1995-04-01 1995-04-01 Werkzeug

Publications (1)

Publication Number Publication Date
WO1996031681A1 true WO1996031681A1 (fr) 1996-10-10

Family

ID=7758599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/001200 WO1996031681A1 (fr) 1995-04-01 1996-03-20 Outil de deverrouillage d'un dispositif de securite d'un pic

Country Status (3)

Country Link
EP (1) EP0817902B1 (fr)
DE (2) DE19512349C1 (fr)
WO (1) WO1996031681A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190076998A1 (en) * 2017-09-11 2019-03-14 Steven Gerard Verkley Bit driver and method for its use

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331970B4 (de) 2003-07-14 2008-01-31 Wirtgen Gmbh Baumaschine
ATE348966T1 (de) 2004-05-24 2007-01-15 Hans-Peter Canonica Elektromotorischer verstellantrieb
DE102008025071A1 (de) 2008-05-26 2009-12-03 Wirtgen Gmbh Werkzeug zur Demontage eines Meißels
US10486293B2 (en) 2015-12-17 2019-11-26 Steven Gerard Verkley Device for extracting cutting bit from holder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101933A (en) * 1957-10-14 1963-08-27 Cincinnati Mine Machinery Co Cutter bit and socket construction
FR1425935A (fr) * 1964-03-05 1966-01-24 Eickhoff Geb Dispositif pour la fixation des couteaux de havage, utilisable notamment dans les exploitations minières
US3397012A (en) * 1966-12-19 1968-08-13 Cincinnati Mine Machinery Co Cutter bits and means for mounting them
US3769683A (en) * 1969-06-30 1973-11-06 Cincinnati Mine Machinery Co Means for removal and installation of bits in mining and digging machinery
GB1539347A (en) * 1976-04-07 1979-01-31 Anderson Strathclyde Ltd Mineral cutting tools
US4952001A (en) * 1989-05-31 1990-08-28 Fansteel Inc. Mining bit preload retainer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1111591A (en) * 1964-09-01 1968-05-01 Coal Industry Patents Ltd Mining cutter tool locking means
GB2179002A (en) * 1985-07-02 1987-02-25 Nippon Foil Mfg Package structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3101933A (en) * 1957-10-14 1963-08-27 Cincinnati Mine Machinery Co Cutter bit and socket construction
FR1425935A (fr) * 1964-03-05 1966-01-24 Eickhoff Geb Dispositif pour la fixation des couteaux de havage, utilisable notamment dans les exploitations minières
US3397012A (en) * 1966-12-19 1968-08-13 Cincinnati Mine Machinery Co Cutter bits and means for mounting them
US3769683A (en) * 1969-06-30 1973-11-06 Cincinnati Mine Machinery Co Means for removal and installation of bits in mining and digging machinery
GB1539347A (en) * 1976-04-07 1979-01-31 Anderson Strathclyde Ltd Mineral cutting tools
US4952001A (en) * 1989-05-31 1990-08-28 Fansteel Inc. Mining bit preload retainer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190076998A1 (en) * 2017-09-11 2019-03-14 Steven Gerard Verkley Bit driver and method for its use

Also Published As

Publication number Publication date
EP0817902B1 (fr) 1998-12-16
DE59601008D1 (de) 1999-01-28
EP0817902A1 (fr) 1998-01-14
DE19512349C1 (de) 1996-10-24

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