EP2128381B1 - Werkzeug zur Demontage eines Meißels - Google Patents

Werkzeug zur Demontage eines Meißels Download PDF

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Publication number
EP2128381B1
EP2128381B1 EP09005840.5A EP09005840A EP2128381B1 EP 2128381 B1 EP2128381 B1 EP 2128381B1 EP 09005840 A EP09005840 A EP 09005840A EP 2128381 B1 EP2128381 B1 EP 2128381B1
Authority
EP
European Patent Office
Prior art keywords
tool according
actuating element
base part
tool
chisel
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.)
Active
Application number
EP09005840.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2128381A2 (de
EP2128381A3 (de
Inventor
Günter HÄHN
Martin Lenz
Thomas Lehnert
Bernd Holl
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
Original Assignee
Wirtgen 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 Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP2128381A2 publication Critical patent/EP2128381A2/de
Publication of EP2128381A3 publication Critical patent/EP2128381A3/de
Application granted granted Critical
Publication of EP2128381B1 publication Critical patent/EP2128381B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2891—Tools for assembling or disassembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49822—Disassembling by applying force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53704—Means to assemble or disassemble tool chuck and tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool

Definitions

  • the invention relates to a tool for disassembling a bit, in particular a bit holder, having a base part which receives an actuator, wherein the actuator has a Austreibdorn, and wherein the actuator is adjustable, and wherein the actuator directly or indirectly on a cylinder Piston system or is coupled to an electromotive unit.
  • Such tools are used, for example, in road milling machines, recyclers, surface miners, etc. They are used for dismantling chisels, especially shank chisels (round shank chisels).
  • the chisels are held clamped in chisel shots.
  • the bit receptacles are usually designed as through holes.
  • the bit holder itself are mounted on the surface of a Fräswalzenrohres, in particular welded or set exchangeable to the base carriers, which in turn are welded onto the surface of a Fräswalzenrohrs.
  • To facilitate the dismantling of the chisel tools are known, as in the DE 296 23 508 U1 are described.
  • This tool has two lever arms, which are connected by a joint.
  • One of the lever arms forms a Austreibdorn, the other lever forms a handle.
  • the Austreibdorn can be introduced with its free end in the bit shots so that it abuts the end of the chisel shank of the driven out chisel.
  • the tool can be placed with the second lever against a support shoulder on the Fräswalzenrohr.
  • the chisel can then be pushed out of the bit holder with a lever adjustment.
  • the Austreibdorn is guidedgefädelt from the chisel. Fiddling with the double lever is difficult in confined mounting space and is time consuming.
  • the tool requires a support shoulder on the milling drum, which is not always available.
  • Disassembly tools are also known from the prior art, which can be attached with Abziehklauen to the chisel head of the chisel. In this case, a circumferential groove in the chisel head is required, in which engage the Abziehklauen.
  • Another disassembly tool is from the WO 2005/005119 A1 known.
  • This tool has a servo motor to which a tool changer is coupled.
  • a transfer member of the tool changer carries a Austreibdorn.
  • This tool has a support arm that can be fixed to the bit holder. To the support arm, a pivot lever is coupled, which carries a handle. The bit holder carries a linearly adjustable plunger. To disassemble the chisel, the swivel lever is attached to the ram with a lever arm turned away from the handle. As a result of an adjustment of the handle, the plunger can be adjusted and pushed out with this the chisel from the bit holder.
  • the plunger installed with the chisel holder requires additional parts and assembly work. In addition, it requires a space on the chisel holder, which is unacceptable in modern precision milling.
  • this design requires the determination of the bit in a blind hole-like bit holder. This can pollute during operation, resulting in a system failure.
  • the actuator is indirectly or directly coupled to a fluid-actuated cylinder-piston system or to an electromotive unit.
  • the cylinder can z. B. a fluid cylinder, in particular a hydraulic cylinder, which can be acted upon via an oil circuit. In particular, can thus build a great pressure on the piston and transmit correspondingly large forces on the actuator. In this way chisels can be dismantled reliably without much effort.
  • the electromotive unit may, for. B. be a spindle-nut unit, which is driven by an electric motor.
  • the actuator is pivotally mounted on the base part about a stationary pivot bearing.
  • the base part can be assigned to the bit holder and via the stationary pivot bearing can be a reproducible expulsion realize.
  • the base part has a support portion for supporting directly on the bit holder or indirectly on the bit holder, for. B. has a wear plate. Due to the stationary assignment of the tool to the bit holder can be dispensed with additional support parts, such as Abdrückschulter on the Fräswalzenrohr. This can be realized on the Fräswalzenrohr a compact arrangement of the individual bit holder and there is no additional effort required, as is the case in the prior art.
  • such locations are used on the bit holder for the support, which are not exposed to excessive wear, so that the tool can always be recognized reproducible.
  • the wear plate which is usually disposed between the bit head and a bearing surface of the bit holder, provides such an ideal support point.
  • the support portion may be arranged on a fork-shaped Abuiteil.
  • the tool With the fork-shaped Abuiteeil the tool can be attached to the bit holder so that the support section comes to rest laterally of the bit head of the bit.
  • the support section can then attack on the wear plate.
  • the base part spaced from the support portion has an outer stop surface for attachment to the bit holder.
  • a conceivable variant of the invention may be characterized in that the base part has a receptacle in which the actuator is received between two side walls delimiting the receptacle, and in that the side walls have bearing receptacles on which the actuator is pivotably mounted.
  • a further preferred variant of the invention provides that the displacement movement of the actuator is limited by means of at least one stop arranged on the base part.
  • the actuator can then be limited in its movement. In this case, the movement can then be controlled so that jamming of the steep link in one of its end positions is not possible.
  • the actuator In the initial position, the actuator is positioned with appropriate limit by means of a stop so that a light attachment to the bit holder is possible.
  • the limitation of the actuating movement of the actuator in the disassembly position prevents the actuator jammed in the bit holder.
  • the actuator is movable out of its initial position into the disassembly position, and that the steep member is held spring-biased by a spring element in the starting position. This measure ensures that the actuator, when the cylinder is depressurized, remains in its initial position or returns to it. It goes without saying that z. B. can be dispensed by the use of a double-acting cylinder on the spring preload.
  • the base part is indirectly or directly coupled by means of a connection part to a handle part, and that the handle part is pivoted by means of a pivot bearing relative to the base part.
  • the Austreibdorn is connected to a lever arm which has a coupling for the pivotable connection of a piston rod, and that the lever is pivotally mounted at a distance from the coupling.
  • the FIG. 1 shows a tool 10 with a handle 12.
  • a battery is integrated.
  • the battery can be charged via two power contacts 11 in a corresponding charging station.
  • the battery is used to power an electric motor.
  • This electric motor is housed in a neck housing, which is connected to the handle 12.
  • housing a cylinder 13 is housed.
  • the cylinder 13 is presently designed as a hydraulic cylinder, so that in the neck housing a corresponding hydraulic circuit system is integrated.
  • a piston is slidably mounted between two end positions.
  • a trigger 12.1 is grown. This trigger 12.1 closes a contact of a circuit and thus activates the electric motor in the attachment housing.
  • the electric motor causes in conjunction with the hydraulic system, the adjustment of the piston in the cylinder 13.
  • the fluid connections are designed as quick couplings.
  • the hoses can be connected to counter-coupling pieces of hoses.
  • the hoses may, for example, depart from a hydraulic system of a road milling machine or a surface miner.
  • the integrated in the handle 12 lines are guided to the cylinder 13.
  • a piston is again housed linearly adjustable.
  • the adjustment movement of the piston can be controlled by means of a valve which is controllable via a trigger 12.1 on the handle 12.
  • On the cylinder 13 can in the FIG. 4 shown adapter 20 are connected.
  • This adapter 20 will be described with reference to FIGS FIGS. 1 and 4 explained in more detail below.
  • He has a base part 20.1.
  • the base part 20.1 defines a receptacle 20.2 with two side walls 20.4.
  • an actuator 60 is pivotally mounted in the form of a lever.
  • the actuator 60 has a lever arm 64, to which a Austreibdorn 65 is integrally connected.
  • the Austreibdorn 65 is bent formed.
  • the free end of Austreibdorns 65 is designed convex spherical.
  • the lever arm 64 is provided at its end remote from the Austreibdorn 65 with a bore which forms a bearing seat 63.
  • This bearing receptacle 63 is in alignment with corresponding holes in the side walls 20.4. Through the aligned holes and the bearing seat 63, a bearing pin can be pushed through 20.6 and secured by means of retaining rings, as the FIG. 4 illustrated.
  • the bearing pin 20.6 forms an axis of rotation according to FIG. 1 vertical to the image plane.
  • the lever arm 64 is provided with a coupling 62.
  • a piston rod 14 can be connected with its bearing receptacle 15.
  • the piston rod 14 carries at its end facing away from the bearing receptacle 15 a collar 16, as the FIG. 4 illustrated.
  • connection part 20.10 is integrally formed.
  • the FIG. 1 illustrates that the connecting part 20.10 has a cup-shaped receptacle, which communicates via a through hole with the receptacle 20.2 in spatial communication.
  • a spring element 20.11 is used in the cup-shaped receptacle.
  • the spring element 20.11 is designed as a spiral spring.
  • the piston rod 14 is passed through the spiral spring, so that the free end of the piston rod 14 comes into contact with the actuator 60.
  • the piston rod 14 comes with its bearing receptacle 15 to the coupling 62 to lie.
  • the lever arm 64 has in the region of the coupling 62 two mutually aligned bores, which can be aligned with the bearing receptacle 15 in the piston rod 15.
  • the piston rod 14 is provided with its collar 16 against the projecting from the cup-shaped receptacle spring end. Subsequently, by a pressure on the collar 16, the spring element 20.11 are compressed until the bearing seat 15 is aligned with the bores of the coupling 62. Through the aligned holes and the bearing seat 15, a hinge pin can be pushed through. As the FIG. 4 illustrates circular openings 20.5 are present in the side walls 20.4.
  • the lever arm 64 can be aligned with its holes on the holes in the coupling 62. Then, the hinge pin can be pushed through the apertures 20.5 in the holes of the lever arm 64 and through the bearing seat 15 therethrough. This makes it easy to connect or disconnect the piston rod 14 perform.
  • the piston rod 14 in the in FIG. 1 shown position held spring biased. Thus, the actuator 60 is fixed in this position.
  • the adapter 20 can be connected to the neck housing.
  • a rotary bearing is formed between the connecting part 20.10 and the attachment housing, so that the attachment housing can be rotated relative to the base part 20.1.
  • the piston rod 14 rests with its collar 16 against the piston guided in the cylinder 13.
  • the piston in the cylinder 13 is arranged in its, the Ausschiebposition determining end position.
  • stops 20.8 and 20.9 are provided in the area of the receptacle 20.2 of the base part 20.1.
  • stops 20.8 and 20.9 are used to limit the adjustment of the actuator 60.
  • the actuator 60 corresponding mating surfaces, which can be brought into abutment with the stops 20.8 and 20.9.
  • the actuator 60 In the FIG. 1 is the actuator 60 to the stop 20.8.
  • the actuator 60 In the FIG. 3 If the actuator 60 is applied to the stop 20.9.
  • a Ab healedeil 20.13 is integrally formed on the base part 20.1.
  • the Ab healedeil 20.13 is fork-shaped and has a support portion 20.14.
  • the above-described tool 10 is for disassembling a chisel 50 received in a chisel holder 40.
  • the bit holder 40 is replaceably held in a base carrier 30.
  • the base support 30 has a plug-in receptacle which receives a plug-in extension of the bit holder 40. With its clamping screw 32, the bit holder 40 can be fixed to the base support 30.
  • the base support 30 has a concave support surface 31. With this, it can be placed on the surface of a Fräswalzenrohrs and welded to it.
  • the bit holder 40 has a projection 41, in which a bit holder 43 is incorporated as a bore.
  • the bit receptacle 43 is accessible on the back by means of a recess 42.
  • the chisel 50 is in the present case designed as a round shank chisel.
  • the chisel 50 has a chisel head, to which a chisel shaft 51 is integrally formed.
  • a clamping sleeve is mounted on the drill collar 51 .
  • the clamping sleeve is axially immovable on the drill collar 51, but freely rotatably supported in the circumferential direction.
  • the chisel 50 is inserted with its chisel shaft 51 in the bit holder 43 of the chisel holder 40 so that it is held clamped therein by means of the clamping sleeve.
  • the chisel 50 In the inserted state, the chisel 50 is supported with its chisel head on a wear protection disk 54, which is mounted on the chisel shaft 51.
  • the wear shield 54 is disposed between the bit head and the collet.
  • the wear protection disk 54 lies with its side facing away from the bit head on a support surface of the bit holder 40.
  • the bit 50 may rotate with its bit on the wear shield 54.
  • the drill collar 51 rotates in the clamping sleeve.
  • the chisel head of the chisel 50 carries in the usual way a chisel tip 52, for example consisting of hard metal.
  • the tool 10 described in the figures is used.
  • the tool 10 is placed on the bit holder 40, wherein the Ab coupledeil 20.13 rests with its support portion 20.14 on the front of the wear plate 54.
  • the pressing member 20.13 can of course also be indirectly or directly supported at a suitable, arbitrary position of the bit holder 40.
  • the base part 20.1 further has a stop surface 20.7, with which the base part 20.1 is supported on the surface of the chisel holder 40.
  • a defined assignment of the tool 10 to the bit holder 40 can be effected.
  • the electric motor With the actuation of the trigger 12.1, the electric motor is activated in the attachment housing. This promotes hydraulic fluid in the cylinder 13, whereby the piston is displaced in the cylinder 13. Since the piston rests directly or indirectly on the collar 16 of the piston rod 14, this is also in the in FIG. 2 adjusted positions shown. In this adjustment, the spring element 20.11 is compressed.
  • the actuator 60 With the adjustment of the piston rod 14, the actuator 60 is pivoted about its bearing seat 63. In this case, then the actuator 60 emerges with its Austreibdorn 65 in the bit holder 43 such that the free end of Austreibdorns 65 comes into contact with the support surface 53 on the drill collar 51. With the adjustment of the actuator 60 of the bit 50 is pushed out of the bit holder 43. The support section 20.14 holds the wear shield 54 in position. Accordingly, the clamping sleeve pushes into the cylindrical bore of the wear protection disk 54. The clamping sleeve is compressed radially inwardly, whereby their clamping effect is partially compensated. As a result, a lower expulsion force is required. The adjusting movement of the actuator 60 is limited by the stop 20.9.
  • FIGS. 5 to 8 are shown tool variants.
  • the illustrations according to Figure 5 to 7 corresponds to the change-holder system consisting of base support 30, bit holder 40 and chisel 50 of the arrangement according to FIGS. 1 to 4
  • the FIG. 8 illustrates that the tools according to the invention 10 is not limited solely to the use of these principle known change systems. Rather, an application is conceivable in which the bit holder 40 is welded directly to a Fräswalzenzenrohr F (see weld 44).
  • the tool design according to FIG. 5 corresponds essentially to the design of the tool according to FIGS. 1 to 4 , Only the actuator 60 is constructed differently.
  • This actuator 60 is designed as a planar transmission in the form of a space-saving four-bar system.
  • two levers 61, 65.2 are used, which are pivotally connected via pivot bearings 65.1, 65.4 to a Austreibdorn 65.
  • the pivot axes are aligned perpendicular to the image plane.
  • the second lever 65.2 is coupled at its, the Austreibdorn 65 opposite end via a pivot bearing 65.3 to the side walls 20.4.
  • the pivot axes are again perpendicular to the image plane.
  • FIG. 5 shows the starting position of the tool.
  • the piston rod 14 is moved linearly downwards in the image plane.
  • the coupled via the Austreibdorn 65 levers 61 and 65.2 are pivoted synchronously clockwise.
  • the Austreibdorn 65 moves into the bit holder 43 and pushes the bit 50 on its support surface 53 from the bit holder 43, overcoming the clamping force of the clamping sleeve S.
  • FIG. 6 shows a further tool design, wherein the adapter 20 again substantially the adapters 20 according to the tools 10 after Figure 1 to 5 equivalent. It will therefore be discussed only on the different features and otherwise reference is made to the above statements.
  • the connecting part 20.10 of the adapter 20 is provided with a receptacle into which a bent tube 66.2 is inserted and held therein.
  • this tube 66.2 is a pliable element 66.7, in this case a link chain, as it is used in principle in the drive technology used.
  • the link chain is pivotally attached at its one end to the bearing seat 15 of the piston rod (14). At the other end of the chain, the last chain link forms the expelling mandrel 65.
  • FIG. 6 again shows the tool home position. Upon actuation of the trigger 12.1, the piston rod (14) (down) is moved. It enters a cylindrical connection area of the tube 66.2.
  • the link chain is moved in the tube 66.2, wherein the tube 66.2 prevents buckling of the link chain.
  • the Austreibdorn 65 is supported on the support surface 53 of the chisel 50 and pushes him from the bit holder 43 from.
  • a fluid 66.3 preferably filled a liquid in the tube 66.2.
  • a piston 66.1 is connected by means of a cross-head joint.
  • the piston 66.1 seals with its outer contour with the aid of a sealing ring on the inner wall of the cylindrical portion of the tube 66.2.
  • a second piston 66.6 is used sealed in the other pipe end, which is also cylindrical.
  • the piston 66.6 can be adjusted linearly and carries the Austreibdorn 65.
  • the tube 66.2 can dive through the recess 42 in the bit receptacle 43, so that the Austreibdorn 65 of the support surface 53 of the bit 65 is opposite.
  • the piston 66.1 In an adjustment of the piston rod 14, the piston 66.1 is inserted into the tube 66.2.
  • the fluid 66.3 transmits this adjusting movement to the second piston 66.6.
  • the Austreibdorn 65 pushes the bit 50 from the bit holder 43 from.
  • the spring element 20.11 presses the actuator 60 in the starting position.
  • the piston 66.1 is pulled upwards.
  • the second piston 66.6 is also sucked back into its starting position by the fluid 66.3.
  • FIG. 8 a tool 10 is shown, in which an electric motor 66.8 is integrated in the handle 12.
  • the output shaft 66.9 of the electric motor 66.8 is equipped with a spindle 66.11. With the electric motor 66.8 turned away, the output shaft is rotatably fixed in the adapter 20 by means of a ball bearing 66.10. Further, the actuator 60 is received in the adapter 20 between the two side walls 20.4, which in the present case has the shape of a disc.
  • the actuator 60 is provided at the edge with a toothing 66.12, which meshes with the spindle 66.11.
  • the actuator 60 is held in the adapter 20, wherein the bearing receptacle 63 forms the pivot axis.
  • the actuator 60 carries the Austreibdorn 65 which is integrally formed and eccentric to the bearing seat 63.
  • the tool 10 can be used again with the Austreibdorn 65 through the recess 42 in the bit holder 43, so that the Austreibdorn 65 of the support surface 53 of the bit 50 is opposite.
  • the electric motor 66.8 is activated.
  • the output shaft 66.9 is set in rotary motion.
  • the spindle 66.11 rotates the actuator 60 clockwise via the teeth 66.12.
  • About the spacing of the teeth 66.12 to the pivot bearing 53 a sufficiently large lever arm is formed.
  • the Austreibdorn 65 pushes with a rotation of the actuator 60, the bit 50 from the bit holder 43 from.
  • the electric motor controls 66.8 changes the direction of rotation until the actuator 60 again in his FIG. 8 has reached the end position shown. In this position, the electric motor 66.8 then turns off.
EP09005840.5A 2008-05-26 2009-04-27 Werkzeug zur Demontage eines Meißels Active EP2128381B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008025071A DE102008025071A1 (de) 2008-05-26 2008-05-26 Werkzeug zur Demontage eines Meißels

Publications (3)

Publication Number Publication Date
EP2128381A2 EP2128381A2 (de) 2009-12-02
EP2128381A3 EP2128381A3 (de) 2016-04-27
EP2128381B1 true EP2128381B1 (de) 2017-02-22

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Family Applications (1)

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EP09005840.5A Active EP2128381B1 (de) 2008-05-26 2009-04-27 Werkzeug zur Demontage eines Meißels

Country Status (7)

Country Link
US (3) US8181322B2 (zh)
EP (1) EP2128381B1 (zh)
JP (1) JP5124526B2 (zh)
CN (3) CN101590634B (zh)
AU (1) AU2009202063B2 (zh)
DE (1) DE102008025071A1 (zh)
RU (1) RU2432252C2 (zh)

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DE102008025071A1 (de) * 2008-05-26 2009-12-03 Wirtgen Gmbh Werkzeug zur Demontage eines Meißels
CN102782253B (zh) 2010-02-22 2015-05-06 米诺维森有限公司 用于截矿机截齿的取出系统
CN102049675B (zh) * 2010-11-04 2012-07-18 周俊雄 一种锂电池压盖机
WO2012072802A2 (de) 2010-12-03 2012-06-07 Wirtgen Gmbh MEIßELHALTER UND MEIßELHALTERSYSTEM MIT EINEM MEIßELHALTER UND EINEM BASISTEIL
WO2012072785A2 (de) 2010-12-03 2012-06-07 Wirtgen Gmbh Meisselhalter
DE102010061019A1 (de) 2010-12-03 2012-06-06 Betek Gmbh & Co. Kg Meißelhalter und Werkzeugunterteil für einen Meißelhalter
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US8181322B2 (en) 2012-05-22
CN103072116B (zh) 2015-04-15
CN101590634B (zh) 2013-02-27
CN103072116A (zh) 2013-05-01
CN101590634A (zh) 2009-12-02
AU2009202063B2 (en) 2012-07-05
RU2432252C2 (ru) 2011-10-27
CN201439192U (zh) 2010-04-21
US8286316B2 (en) 2012-10-16
RU2009119847A (ru) 2010-11-27
EP2128381A2 (de) 2009-12-02
DE102008025071A1 (de) 2009-12-03
US20130000090A1 (en) 2013-01-03
JP5124526B2 (ja) 2013-01-23
US20120198678A1 (en) 2012-08-09
EP2128381A3 (de) 2016-04-27
US9157320B2 (en) 2015-10-13
US20090293249A1 (en) 2009-12-03
JP2009285827A (ja) 2009-12-10
AU2009202063A1 (en) 2009-12-10

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