EP0817902B1 - 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
EP0817902B1
EP0817902B1 EP96908086A EP96908086A EP0817902B1 EP 0817902 B1 EP0817902 B1 EP 0817902B1 EP 96908086 A EP96908086 A EP 96908086A EP 96908086 A EP96908086 A EP 96908086A EP 0817902 B1 EP0817902 B1 EP 0817902B1
Authority
EP
European Patent Office
Prior art keywords
shaft
tool
coupling element
bit
lever
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
EP96908086A
Other languages
German (de)
English (en)
Other versions
EP0817902A1 (fr
Inventor
Karl Kammerer
Helmut Widmaier
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.)
Betek GmbH and Co KG
Original Assignee
Betek Bergbau und Hartmetalltechnik Karl Heinz Simon GmbH and Co KG DE
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 and Co KG DE filed Critical Betek Bergbau und Hartmetalltechnik Karl Heinz Simon GmbH and Co KG DE
Publication of EP0817902A1 publication Critical patent/EP0817902A1/fr
Application granted granted Critical
Publication of EP0817902B1 publication Critical patent/EP0817902B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21C35/19—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, a shaft a chisel of a cutter, road milling machine or the like. in a bore of a Chisel holder axially secures.
  • the shank is the individual Chisel inserted through through holes in the chisel holder.
  • the chisel strikes the assembly position with its chisel head, which carries the shaft around the hole entry.
  • the shaft protrudes from the one facing away from the chisel head Side out of the hole.
  • In this area is the cylindrical one Provide a circumferential groove on the shaft. It is slotted into this groove Ring trained fuse used. Because a chisel after a a certain operating time often has to be exchanged for one new chisels are made.
  • the exchange is usually the Fuse levered out of the groove using a lever.
  • the jumps Security uncontrolled from the shaft and is usually lost.
  • the detaching fuse creates a considerable risk of injury.
  • Such a tool is known for example from US 4,952,001.
  • the object of the invention is achieved in that of a coupling element at least one approach is carried in the tool holder of the fuse it can be introduced that a lever is connected to the coupling element via a joint is that by means of a support element on the chisel holder, the Chisel holder or a sonsitigen machine part is supported, which Support element is at a distance from the joint.
  • the lugs are coupled into the tool holders.
  • the lever is then folded over the support element in such a way that the fuse is removed from the shaft of the chisel with the coupling element becomes.
  • the speed of the pulling movement of the Fuse can be controlled.
  • the effort to loosen the Low backup. So the fuse can be easily and controlled by the Chisels to be removed.
  • the handle one Has shaft that is connected to the joint, and that the shaft on 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 element is integrally formed on the shaft and on a counter surface of the chisel holder supports, and that the support element on the side facing the counter surface is arched so that it is on the counter surface when operating the handle rolls off.
  • a simple hinge connection is created in that the handle for formation the joint is provided with a pin receptacle that rotates a pin receives, which is carried by the coupling element and its, the hinge axis longitudinal axis forming transverse to the central longitudinal axis of the chisel.
  • the coupling element on the side facing away from the joint has two spaced legs, which at their free ends Approaches bearing in the direction of the central longitudinal axis of the chisel on the Chisel holder side facing away from the tool holders of the fuse Place the shaft of the chisel in a form-fitting manner on the tool holders, then let bring the tool into operative connection with the fuse in a simple manner.
  • the coupling element at least one Carries magnets that cooperate with a ferromagnetic point of the fuse.
  • a defined actuating movement is achieved in that the actuating movement of the Lever for releasing the fuse can be limited by means of a stop.
  • the handle wears hand protection, this prevents that a user's hand is injured when the lever is turned.
  • Another embodiment of the invention is characterized in that the Joint can be locked by means of a connecting part that the lever force introduction means has a force in the direction of the coupling element can be introduced, and that the force over the active surfaces of the coupling element in corresponding Counter surfaces of the fuse can be inserted so that the fuse is on the shaft (22) of the chisel (20) can be mounted. Accordingly, the tool can be used both for assembly and disassembly of the fuse.
  • FIG. 1 shows a bit holder 10, as is typically the case on roller bodies of cutting or road milling machines.
  • the Chisel holder 10 on a base part 11, which is fixed on the roller-shaped body.
  • the chisel holder 10 has a bore 12 enforced.
  • a shaft 22 of the chisel 20 is inserted into the bore 12.
  • Shank 22 carries a chisel head 21.
  • the shank 22 is inserted, the strikes Chisel head 21 around the bore 12 at the hole entry on the chisel holder 10 on. The insertion movement of the chisel 20 into the bore 12 is thus limited.
  • the chisel head 21 On on the side facing away from the shaft 22, the chisel head 21 has a recess 24 on, in which a chisel tip 23 is inserted.
  • the chisel tip 23 is as Carbide insert formed and soldered in the recess 24.
  • On the The shaft 22 protrudes out of the bore 12 from the side facing away from the bit head 21. In the area of this borehole exit there is a circumferential one in the cylindrical shaft 22 Groove 25 introduced.
  • a fuse 40 is inserted into the groove 25.
  • the fuse 40 has one slotted, annular base body, the shaft 22 in the groove base partially includes.
  • 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.
  • Approaches 37 are connected to legs 36 which are spaced apart and so form a receptacle 38, the fuse partially on the side encloses.
  • the coupling element is in the region facing away from the legs 36 35 pierced by a hole in which a bolt 33b is fixed.
  • the bolt 33b is through a bolt receptacle 33a of a shaft, which is designed as an elongated hole 32 of the tool 30 inserted. So that a joint 33 is formed, the Hinge axis is formed by the axis of the bolt 33b.
  • the joint axis is at mounted tool 30 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 Support element 39 has a convexly curved geometry and is used for support of shaft 32 on chisel holder 10.
  • On the free end of the shaft 32 is a handle 31 in the form of a handle made of plastic material and a lever 34 is formed.
  • the handle 31 is provided with an impact protection 52 completed.
  • 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 for introduction an impact force in the central longitudinal axis of the shaft 32.
  • At the Force application means 51 facing away from the shaft 32 is a connecting part 50 attached.
  • the connecting part 50 is shaped as a pin, which in a appropriate recording of the coupling element 35 can then be introduced, if the central longitudinal axis of the shaft 32 is perpendicular to the central longitudinal
  • the approaches 37 To pull the fuse 40 out of the groove 25, as shown in FIG. 1, the approaches 37 first in the tool holders 41 of the fuse 40 fixed. The lever 34 is then flipped over in such a way that the support part 39 rests on its corresponding counter surface on the chisel holder 10. Hereby the lugs 37 are positively supported in the tool holders 41 from. If the lever 34 is now turned further, as shown in more detail in FIG. 2, then the support member 39 rolls on the chisel holder 10. That facing the joint 33 The end of the lever 34 is thereby raised. At the same time, the Bolt 33b a force is introduced into the coupling element 35. This force works perpendicular to the central longitudinal axis of the chisel 20. This shifts Coupling element 35 also perpendicular to the central longitudinal axis of the chisel 20. Since the Approaches 37 hold the fuse 40 in a form-fitting manner on the coupling element 35 pulled out of the groove 25.
  • the chisel 20 can now be pulled out of the bore 22 and against a new one Chisels 20 to be replaced. Furthermore, the tool 33 from Lift off chisel holder 10. Here, the loss of the fuse 40 is certain thereby preventing a magnet from being inserted into the coupling element 35 ferromagnetic fuse 40 holds. Alternatively, the backup can also be done by mechanical clamping means are held.
  • the fuse 40 can be operated with only a small amount Pull the force out of the groove 25 of the chisel 20 in a controlled manner.
  • the connecting part 50 of the shaft 32 rigidly connected to the coupling element 35 the tool enables the fuse 40 to be mounted 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)

Claims (9)

  1. Outil (30) de déverrouillage d'un dispositif de sécurité (40), ce dernier verrouillant en direction axiale une tige (22) d'un trépan (20) d'une haveuse, d'une fraiseuse-rainureuse ou similaire dans une forure (12) d'un porte-trépan,
    caractérisé
    en ce que par un élément d'accouplement (35) est porté au moins un épaulement (37), qui peut être introduit dans un logement pour outil (41) du dispositif de sécurité,
    en ce qu'à l'élément d'accouplement (35) est par l'intermédiaire d'une articulation (33) raccordé à un levier (34) qui au moyen d'un élément d'appui (39) peut être appliqué sur le porte-trépan, sur le trépan ou sur un autre élément de machine, ledit élément d'appui (39) étant disposé à distance de l'articulation (33).
  2. Outil suivant la revendication 1,
    caractérisé
    en ce que le levier (34) présente une tige (32), qui est raccordée à l'articulation (33), et
    en ce que la tige (32) porte une poignée (31) du côté opposé à l'articulation (33).
  3. Outil suivant la revendication 2,
    caractérisé
    en ce que l'élément d'appui (39) est formé sur la tige (32) et s'appuie sur une surface antagoniste du porte-trépan (10). et
    en ce que du côté orienté vers la surface antagoniste, l'élément d'appui (39) est en forme d'arc, de sorte que lors de l'actionnement du levier (34) il se déroule sur la surface antagoniste.
  4. Outil suivant l'une quelconque des revendications de 1 à 3,
    caractérisé
    en ce qu'aux fins de la formation de l'articulation (33), le levier (34) présente un logement pour boulon (33a), qui reçoit à rotation un boulon (33b) porté par l'élément d'accouplement (35) et dont l'axe longitudinal, constituant l'axe d'articulation, est orienté transversalement par rapport à l'axe longitudinal médian du trépan (20).
  5. Outil suivant l'une quelconque des revendications de 1 à 4,
    caractérisé
    en ce que du côté non orienté vers l'articulation (33), l'élément d'accouplement (35) présente deux ailes (36) distantes l'une de l'autre, qui à leurs extrémités libres portent les épaulements (37) qui dans la direction de l'axe longitudinal médian du trépan (20), du côté non orienté vers le porte-trépan (10), appliquent avec similarité de forme la tige (20) du trépan.dans les logements pour outil (41) du dispositif de sécurité (22).
  6. Outil suivant l'une quelconque des revendications de 1 à 5,
    caractérisé
    en ce que l'élément d'accouplement (35) porte au moins un aimant, qui coopère avec une zone ferromagnétique du dispositif de sécurité (40).
  7. Outil suivant l'une quelconque des revendications de 1 à 6,
    caractérisé
    en ce que la course de déplacement du levier (34) pour le déverrouillage du dispositif de sécurité peut être limitée au moyen d'une butée.
  8. Outil suivant l'une quelconque des revendications de 1 à 7,
    caractérisé
    en ce que la poignée (31) porte un moyen de protection pour les mains.
  9. Outil suivant l'une quelconque des revendications de 1 à 7,
    caractérisé
    en ce que l'articulation (33) peut être bloquée au moyen, d'une pièce de jonction (50), en ce que le levier (34) présente un moyen d'application de force (51), par l'intermédiaire duquel une force peut être appliquée en direction de l'élément d'accouplement (34), et
    en ce que par l'intermédiaire de surfaces actives de l'élément d'accouplement (35), la force peut être transmise à des surfaces antagonistes correspondantes du dispositif de sécurité (40). de sorte que le dispositif de sécurité (40) peut être monté sur la tige (22) du trépan (20).
EP96908086A 1995-04-01 1996-03-20 Outil de deverrouillage d'un dispositif de securite d'un pic Expired - Lifetime EP0817902B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19512349 1995-04-01
DE19512349A DE19512349C1 (de) 1995-04-01 1995-04-01 Werkzeug
PCT/EP1996/001200 WO1996031681A1 (fr) 1995-04-01 1996-03-20 Outil de deverrouillage d'un dispositif de securite d'un pic

Publications (2)

Publication Number Publication Date
EP0817902A1 EP0817902A1 (fr) 1998-01-14
EP0817902B1 true EP0817902B1 (fr) 1998-12-16

Family

ID=7758599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96908086A Expired - Lifetime EP0817902B1 (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
US10486293B2 (en) 2015-12-17 2019-11-26 Steven Gerard Verkley Device for extracting cutting bit from holder

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
EP1600665B1 (fr) 2004-05-24 2006-12-20 Hans-Peter Canonica Mécanisme de réglage à moteur électrique
DE102008025071A1 (de) 2008-05-26 2009-12-03 Wirtgen Gmbh Werkzeug zur Demontage eines Meißels
US20190076998A1 (en) * 2017-09-11 2019-03-14 Steven Gerard Verkley Bit driver and method for its use

Family Cites Families (8)

* 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
DE1226510B (de) * 1964-03-05 1966-10-13 Eickhoff Geb Schraemmeisselbefestigung
GB1111591A (en) * 1964-09-01 1968-05-01 Coal Industry Patents Ltd Mining cutter tool locking means
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
ZA762100B (en) * 1976-04-07 1977-06-29 Andersson Mavor Ltd Improvements in or relating to mineral cutting tools
GB2179002A (en) * 1985-07-02 1987-02-25 Nippon Foil Mfg Package structure
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
US10486293B2 (en) 2015-12-17 2019-11-26 Steven Gerard Verkley Device for extracting cutting bit from holder

Also Published As

Publication number Publication date
DE59601008D1 (de) 1999-01-28
DE19512349C1 (de) 1996-10-24
EP0817902A1 (fr) 1998-01-14
WO1996031681A1 (fr) 1996-10-10

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