EP2543815B1 - Support de burin et système de support de burin doté d'un support de burin et d'une partie de base - Google Patents

Support de burin et système de support de burin doté d'un support de burin et d'une partie de base Download PDF

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Publication number
EP2543815B1
EP2543815B1 EP11172527.1A EP11172527A EP2543815B1 EP 2543815 B1 EP2543815 B1 EP 2543815B1 EP 11172527 A EP11172527 A EP 11172527A EP 2543815 B1 EP2543815 B1 EP 2543815B1
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EP
European Patent Office
Prior art keywords
region
chisel holder
shank
receiving opening
longitudinal axis
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
EP11172527.1A
Other languages
German (de)
English (en)
Other versions
EP2543815A1 (fr
Inventor
Thomas Lehnert
Karsten Buhr
Martin Lenz
Cyrus Dr. Barimani
Günter Dr. Hähn
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
Priority to EP11172527.1A priority Critical patent/EP2543815B1/fr
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Priority to PL11172527T priority patent/PL2543815T4/pl
Priority to AU2011334855A priority patent/AU2011334855B2/en
Priority to TW100144342A priority patent/TWI468253B/zh
Priority to SG2013041637A priority patent/SG190927A1/en
Priority to JP2013541376A priority patent/JP5822940B2/ja
Priority to PCT/EP2011/071642 priority patent/WO2012072802A2/fr
Priority to CN201110395057.2A priority patent/CN102486022B/zh
Priority to BR112013012781A priority patent/BR112013012781B8/pt
Priority to KR1020137013629A priority patent/KR101753305B1/ko
Priority to US13/991,297 priority patent/US9163502B2/en
Priority to RU2013130261/03A priority patent/RU2563008C2/ru
Priority to CN2011204953893U priority patent/CN202788849U/zh
Publication of EP2543815A1 publication Critical patent/EP2543815A1/fr
Application granted granted Critical
Publication of EP2543815B1 publication Critical patent/EP2543815B1/fr
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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
    • E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
    • E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank
    • 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

Definitions

  • the present invention relates to a bit holder comprising a body portion having a bit receiving opening open at least to a bit insertion side of the body portion and a shaft having a shaft longitudinal axis extending from a support side of the body portion, a fastener applying portion on the fastener shaft on a first side and an opposite of the shaft longitudinal axis second side a support region with respect to each other and in a direction of the shaft longitudinal axis extending first transition region adjoining support surface areas are provided, according to the preamble of claim 1.
  • Known bit holder of the mounting shaft is formed with a flattened cross-sectional profile.
  • a recess is formed, which provides a Befest onlysorganbeaufschlagungs Colour the Befest onlysorganbeaufschlagungs Kunststoffs with a respect to the shaft longitudinal axis inclined surface.
  • two substantially planar, elongated in the direction of the shaft longitudinal axis and wedge-like abutting support surface areas are provided which connect in a likewise substantially planar, that is not curved transition surface together.
  • the attachment shaft in a longitudinal section has a circumferentially about a shaft longitudinal axis of the mounting shaft extending, radially expanded support region.
  • a peripheral center region of the hollow for receiving a chisel or a spacer with a chisel receiving opening fastening shaft has a the wall of the mounting shaft and thus the radially expanded support area interrupting slot, so that the attachment shaft has a C-shaped cross-sectional contour and expand radially and can contract and can be accommodated and held with a press fit in a base part.
  • a bore is provided in the attachment shaft into which a pin projecting radially inwardly into the bit receiving opening is inserted to prevent the spacer from falling out of the bit receiving opening.
  • a bit holder with a body portion in which on the one hand a chisel receiving opening is provided and on the other hand, two in the assembled state with a base part in this engaging and the functionality of a fastening shank taking over legs extend away.
  • a support surface area is provided at each of the legs, a support surface area is provided with which the bit holder can be supported on an associated counter-support surface of the base part.
  • a bit holder according to claim 1.
  • This comprises a body portion with a bit receiving aperture open at least to a bit insertion side of the body portion and a mounting shaft extending from a support side of the body portion having a shaft longitudinal axis, a mounting-member loading portion at a first side and a support portion at a second side opposite to the shaft longitudinal axis with adjoining one another and transitional portions extending in a direction of the shaft longitudinal axis Support surface areas are provided.
  • transition region is formed like a depression and that at least one support surface area is formed with respect to the shaft longitudinal axis over a base outer peripheral surface of the attachment shaft at least partially protruding radially outward.
  • substantially plan embodiment of the first transition region between the two Abstweil vomer Victoria Victoria Victoria is provided according to a first aspect of the chisel holder according to the invention to provide a Einsenkungs shamen, ie recessed inward transition region. It has been found that this leads to an improved distribution of the load or stresses in the fastening shaft, when a load is exerted by a fastening member on the Befest Trentsorganbeetzhausungs Scheme from the other side and when in the milling operation of the adjoining the attachment shaft body portion equally in initiated the fastening shaft and introduced via the supporting surface areas on a base member load is introduced.
  • At least one support surface region protrudes outwards at least in regions, so that a configuration of this support surface region largely independent of the geometric configuration of the attachment shank can be produced. This also allows an optimized adaptation to the occurring loads generated at the same time greatly simplified machinability of the bit holder in this area to provide the required precision of the support surface area.
  • the transition region may, for example, be provided at least in regions by a concave depression, that is to say a vault-like manner and thus likewise optimized with regard to the stress conditions.
  • provision may be made for at least one support surface region to approach the radial level of the basic outer peripheral surface in the direction of its circumferential end region remote from the transition region to its circumferential end region lying near the transition region.
  • the transition of at least one support surface region in its circumferential end region remote from the transition region into the base outer peripheral surface of the attachment shaft may be step-like or / and curved.
  • a focusing of the fastening load provided for further simplified machinability of the bit holder can be obtained by providing at least one support surface area in its axial end region close to the body region and / or in its axial end region remote from the body region in a stepped manner and / or in a curved manner Basic outer peripheral surface passes.
  • a uniform loading of the bit holder or the fastening shaft both when acted upon by a fastening member and when initiating forces occurring in milling operation can be assisted by the fact that the support surface areas and / or the transition region are formed substantially symmetrically with respect to a holder center plane.
  • the holder center plane may be a plane substantially in the geometric center of the holder, for example, spanned by the shaft longitudinal axis and a longitudinal center axis of the chisel receiving opening.
  • a uniform force distribution can be assisted in that at least one support surface area is curved around the shaft longitudinal axis.
  • a uniform, so substantially circular curvature can be provided, for manufacturing reasons, the two support surface areas have the same radius of curvature and / or center of curvature.
  • the attachment shaft in the region of its base outer peripheral surface with circular, as z. B. circular, oval or elliptical outer peripheral contour is formed.
  • a longitudinal center axis of the bit receiving opening and the shaft longitudinal axis be at an angle of 6 ° to 24 °, preferably about 12 °, are inclined to each other.
  • This angle has therefore proven to be particularly advantageous, since it has been shown that in milling operation, the forces acting on a chisel are generally not parallel to its longitudinal axis and therefore not in the direction of the longitudinal axis of the chisel receiving opening, but slightly inclined. This inclination can be accommodated by the employment of the shaft longitudinal axis with respect to the longitudinal axis of the chisel receiving opening.
  • the attachment shaft may comprise a attachment member loading area a attachment member engagement surface and the shaft longitudinal axis and a surface normal of the attachment member engagement surface may be inclined at an angle of 50 ° to 65 °, preferably about 62.5 °, to each other.
  • a bit holder system having a bit holder constructed in accordance with the invention and a base part having a fastening shaft receiving opening open at least to a counter-supporting side and a fastening-element receiving opening open to the fastening shaft receiving opening, wherein a fastening element accommodating opening can be displaced to act on the fastening-element loading area Fastening member is received, wherein in the mounting shank receiving opening a counter-supporting region is provided with in a direction of a Befest Trentsschaftareaö Maschinenschenslijnsachse extending further transition region adjacent to each other Martinezstützstützmati Symposium Schemeen.
  • An optimization in the power transmission interaction with the bit holder can be achieved by the further transition region is formed like a projection, for example by a convex projection, so that a transition region substantially complementary configuration can be achieved if this formed with a Einsenkungs shamen, for example, concave contour is.
  • At least one counter-abutment surface region be formed at least in regions projecting radially inwards with respect to the fastening shank receiving opening longitudinal axis via a base inner circumferential surface of the fastening shank receiving opening.
  • At least one counter-support surface region protrudes beyond the basic inner peripheral surface at least in its circumferential end region adjacent to the further transition region and approaches the radial level of the basic inner circumferential surface in the direction of its circumferential end region remote from the further transition region. and that at least one counter-Abstweil vom Kunststoff Quarry at least in its the counter-support side proximal Axialend Scheme and / or in its from the counter-support side away lying Axialend Scheme stepwise or / and curvilinearly merges into the basic inner circumferential surface.
  • the fastening shaft receiving opening is formed in the region of its basic inner circumferential surface and / or in the region of its counter-bearing surface regions with a circular inner peripheral contour. Due to the provision of a fundamentally circular inner peripheral contour, the fastening shaft receiving opening can be introduced in a comparatively simple manner into the base part generally produced as a forged part by a drilling or milling process. It is not necessary to provide planar, ie non-curved surface areas in the interior of the fastening element receiving opening.
  • the Fig. 1 to 6 show a bit holder, generally designated 10, for a milling drum of a road milling machine.
  • the bit holder 10 includes a body portion 12 having an approximately cylindrical projection 16 extending therefrom at a bit insertion end generally indicated at 14.
  • a bit receiving aperture 18 is provided therethrough or the entire body portion 12. This is open at the bit insertion side 14 for receiving an interchangeable chisel lockable therein by friction pinch seat and is open at a support side 20 of the body portion 12 substantially opposite to the bit insertion side 14. From this side, one can remove a worn bit from the bit receiving opening Inserted 18 inserted tool so as to push out the bit from the chisel opening 18.
  • a first support surface region 22 and an angled second support surface region 24 are provided on the support side 20. It can be seen in the illustrations that the chisel receiving opening 18 in the region of the first support surface area 22 is open towards the support side 20. Extending substantially from the second support surface area 24 from the body portion 12 is an elongate attachment shaft 26.
  • the attachment shaft 26 is provided with a generally circular, e.g. circular or oval or elliptical, outer peripheral contour formed. On the structural design of the mounting shank 26 will be discussed in more detail below.
  • the first support surface region 22 comprises a first support surface 28 and a second support surface 30. These two support surfaces 28, 30 of the first support surface region 22 are angled toward one another and to a holder center plane, which is substantially the plane of the drawing Fig. 4 corresponds, formed substantially symmetrical or employed at the same angle. It should be noted here that the holder center plane can be clamped for example by a longitudinal axis LM of the chisel receiving opening 18 and a shank longitudinal axis LB of the mounting shank 26.
  • the second support surface region 24 comprises a first support surface 32 and a second support surface 34.
  • the two support surfaces 32, 34 are angled to each other and thus angled to the holder center plane, in which case the embodiment with respect to the Garrmittenebene corresponding to the configuration of the two support surfaces 28, 30 of the first Support surface area 22 may be symmetrical.
  • first transition regions 36, 38 are formed between the first support surface 28 of the first support surface region 22 and the first support surface 32 of the second support surface region 24 and Similarly, between the second support surface 30 of the first support surface region 22 and the second support surface 34 of the second support surface region 24 which likewise define a transition between the first support surface region 22 and the second support surface region 24.
  • first transition regions 36, 38 is formed on an edge-like adjoining region of the respective support surfaces. Due to the fact that the support surfaces 28, 30, 32, 34 are preferably all flat, that is, not curved, these are thus also line-like formed first transition regions 36, 38 correspondingly un-curved.
  • a second transition region 40 formed between the first support surface 32 and the second support surface 34 of the second support surface region 24 is formed with a substantially straight transition surface 42. This is essentially orthogonal to the holder center plane. Since the two support surfaces 32, 34 are substantially planar, that is to say unconstrained, this second transition region 40 also extends substantially rectilinearly.
  • an angle W1 is formed, which is in the range of about 137 °.
  • an angle W2 of about 130 ° is formed, so that each of these support surfaces 28, 30 to the holder center plane has an inclination angle of about 65 °.
  • an angle W3 of about 110 ° is formed, so that each of these support surfaces 32, 34 has an inclination angle of about 55 ° to the holder center plane.
  • the two support surfaces 28, 30 of the first support surface region 22 are arranged at a larger angle enclosed therebetween than Further, the shank longitudinal axis LB is oriented with respect to the body portion 12 such that the attachment shaft 26 is inclined to the first support surface portion 22 and the second support surface portion 24 at an angle W4 and W5, respectively 65 °.
  • the angle W4 may be in the range of 67 ° while the angle W5 may be about 64 °.
  • angles W4 or W5 a line connecting the respective support surfaces 28, 30 or 32, 34 in the case of imaginary extension thereof can be used or, in the case of the support surfaces 32, 34, also the angle W5 the transition surface 42 of the second transition region 40 and in the case of the support surfaces 28, 30 of the angle W4 also with respect to a transition surface 43 of another transition region 41 on the bit holder 10 can be determined.
  • the total angle formed by the sum of the two angles W4 and W5 can thus be in a range of approximately 131 ° and defines the angle of attack of two prism-like configurations, one of which is defined by the two support surfaces 28, 30 of the first support region 22 and the other
  • this total angle that is, the sum of the two angles W4 and W5
  • the geometry of the pyramid-like arrangement, formed by the four support surfaces 28, can thus be kept at, for example, equal angles W2 and W3. 30, 32, 34, and in particular a concentration of forces in the direction of an imaginary pyramid vertex are supported.
  • FIGS. 9 and 10 a base part 44 which can be used in conjunction with the bit holder 10 described above is shown.
  • the FIGS. 11 and 12 show this base part 44 in assembly with the bit holder 10th
  • a fastening shank receiving opening 46 is formed, which is connected both to an in Fig. 9 above recognizable counter-support side 48, as well as in Fig. 10 recognizable connection side 50 of the base part 44 is open.
  • the base part 44 is fixed, for example, by welding to a milling drum.
  • a first counter-support surface region 52 is formed in association with the first support surface region 22.
  • a second counter-support surface region 54 is formed in association with the first counter-support surface region 52.
  • the first counter-support surface region 52 comprises a first counter-support surface 56 in association with the first support surface 28 of the first support surface region 22 and comprises a second counter-support surface 58 in association with the second support surface 30 of the first support surface region 22.
  • the second counter-support surface region 54 accordingly in association with the first support surface 32 of the second support surface region 24, a first counter-support surface 60 and comprises in association with the second support surface 34 of the second support surface region 24, a second counter-support surface 62.
  • the respective counter-support surfaces 56, 58, 60, 62 are mutually corresponding the respective Anwinkelept the support surfaces 28, 30, 32, 34 of the chisel holder 10 is angled to each other and flat, so that the mutually associated support surfaces and counter-support surfaces can abut flat against each other.
  • first counter-supporting surface 56 and the second counter-supporting surface 58 on the one hand, and between the first counter-supporting surface 60 and the second counter-supporting surface 62, on the other hand, there is a respective depression-type one third transition region 64 and 66 formed.
  • the support side 20 formed on the bit holder 10 on the one hand and the counter-support side 48 formed on the base part 44 on the other hand are in particular complementarily shaped with the support surfaces or counter-support surfaces coming into abutment with each other.
  • a plurality of prism-like abutting support surfaces or counter-support surfaces results in a funnel-like configuration which ensures stable support of the bit holder 10 and base part 44 also in the direction transverse to the attachment shaft 26 or the shaft longitudinal axis LB. This generally leads to a relief of the mounting shaft 26, in particular in the transverse direction, whereby the risk of breakage of the mounting shaft is significantly reduced.
  • Chisel holder system achieves a further relief of the mounting shaft 26 by the plant interaction with the base member 44 in the region of the mounting shank receiving opening 46.
  • This aspect and the abutment aspect already explained in detail above can in each case already achieve in each case a clear relief or a more uniform distribution of force. However, they are particularly advantageously realized in combination with one and the same bit holder system.
  • the attachment shank 26 of the chisel holder 10 has an attachment member loading region 76 at a first side located approximately below the first support surface region 22 and has a support region 78 at a second side opposite the shank longitudinal axis LB.
  • a fastening element 82 provided on the base part the longitudinal center axis of which is oriented approximately parallel to the surface normal FN, ie substantially orthogonal to the fastening element loading surface 80, generates a force component directed comparatively strongly in the direction of the shank longitudinal axis LB when the fastening shank 26 is acted on.
  • the fastening member 82 is received in a Befest onlyorganitö réelle 84 of the base member 44 which is at least partially formed with internal thread, so that at least partially formed with external thread attachment member 82 by rotation, so screwing towards a Befest onlysorganinformationö Stammslijnsachse LO can be moved in the direction of the Befest onlysorganbeetzhausungs formulation 80 to and away.
  • the fixing member receiving opening longitudinal axis LO is in a mounting shank receiving opening longitudinal axis LA, which in the assembled state at least in terms of their orientation also substantially coincides with the shaft longitudinal axis LB, at the angle W7 of about 62.5 °.
  • the support region 78 is formed with two support surface regions 88, 90, which run angled or inclined with respect to each other, in particular each have a preferably circularly curved course in the circumferential direction about the shaft longitudinal axis LB. In a central region of the support region 78, these two support surface regions 88, 90 adjoin one another in a fifth transition region 92.
  • This fifth transition region 92 is designed like a depression, preferably with a concave depression profile extending in the direction of the shaft longitudinal axis LB.
  • the support surface regions 88, 90 of the support region 78 are designed such that they protrude over a basic outer circumferential surface 94 of the attachment shaft 26 at least in regions radially with respect to the attachment shaft longitudinal axis LB.
  • the embodiment is such that this radial projection in the central region of the support region 78, ie where the fifth transition region 92 is formed, is the lowest, so there, for example, almost no radial projection is present, while in the circumferential direction and in the direction of the fifth Transition region 92 away this radial projection increases.
  • both at the axial end regions of the support surface regions 88, 90, as well as in the circumferential direction of the fifth transition region 92 remote end regions each have a step-like, possibly slightly curved transition to the base outer peripheral surface 94 of the mounting shaft 26 is present.
  • a further significant advantage of the support surface regions 88, 90 projecting radially beyond the base outer peripheral surface 94 is that locally localized surface regions are utilized there to generate abutting contact between the attachment shaft 26, ie the bit holder 10, and the base part 44. Since both the bit holder 10 and the base member 44 are generally provided as forgings and therefore those surfaces in which a mutual support, to achieve the required precision material to be edited or reworked, this operation can be limited to the fact actually provided surface areas, namely where the support surface areas 88, 90 are formed.
  • the counter-support region 86 is formed on the base part 44.
  • the counter-support region 86 in association with the support surface regions 88, 90, has counter-support surface regions 96, 98. These adjoin one another in a sixth transition region 100, wherein the sixth transition region 100 is formed like a projection, preferably with a convexly curved projection 102 elongated in the direction of the fastening shaft receiving opening longitudinal axis LA.
  • an insert 104 which fits into a corresponding one Opening 106 of the base part is used, for example, under interference fit and with a peripheral portion thereof for providing the projection 102 projecting radially inwardly beyond the two counter-supporting surface portions 96, 98.
  • the counter-supporting surface portions 96, 98 are formed in the fixing shaft receiving opening 46 so as to protrude radially inwardly at least partially over a base inner peripheral surface 108 of the fixing shaft receiving opening 46 with respect to the fixing shaft receiving opening longitudinal axis LA.
  • the configuration may be such that near the sixth transition region 100 this radial projection is maximum and decreases in the circumferential direction in the direction of the sixth transition region 100 away, so that gradually the counter-support surfaces 96, 98 pass into the basic inner peripheral surface 108.
  • the two counter-support surface regions 96, 98 are inclined with respect to each other, in this case with a curved course, this curvature being able to correspond to the curvature of the two support surface regions 88, 90 in order to achieve a large contact area.
  • the attachment shaft 26 can be introduced into the attachment shaft receiving opening 46 with lateral play in principle, wherein only by moving the attachment member 82 on the Befest Trentsorganbeetzungs simulation 80 to a fixed abutting contact between the Abstütz vomauer Societyen 88, 90th and the counter-support surface areas 96, 98 is generated. A leading to a stronger pressure contact of the two transition regions 92, 100 is thereby avoided.
  • both the support portion 78, and the counter-support portion 86 to the holder center plane or a plane corresponding to this plane of symmetry of the base member 44 symmetrical, in particular point-symmetrical, are formed.
  • a supporting surface area or counter-supporting surface area with the respective surfaces serving for mutual support is designed or processed in such a way that a direct metal-metal contact can be generated. Since both the base part and the bit holder are generally produced as forgings, the surfaces serving as support surface areas or counter-support surface areas in the context of the present invention are thus basically made of material-lifting or / and reworked. In this way, that can be for a substantial relief and accurate positioning required high precision can be ensured in these surfaces, which would not be feasible in a merely machined in a forging surface.

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  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
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Claims (19)

  1. Un porte-pic, comprenant:
    - une région de corps (12) avec une ouverture de réception de pic (18) ouverte au moins vers un côté d'introduction de pic (14) de la région de corps (12),
    - une tige de fixation (26) avec un axe longitudinal de tige (LB) s'étendant d'un côte de support (20) de la région de corps (12),
    où à la tige de fixation (26) sont prévus sur un premier côté une région d'application de membre de fixation (76) et sur un deuxième côté opposé par rapport à l'axe longitudinal de tige (LB) une région de support (78) avec des régions de surface de support (88, 90) qui sont inclinées l'une par rapport à l'autre et qui se rejoignent dans une région de transition (92) s'étendant dans le sens de l'axe longitudinal de tige (LB), où au moins une région de surface de support (88, 90) est adaptée pour, au moins dans quelques régions, faire saillie radialement à l'extérieur par rapport à l'axe longitudinal de tige (LB) au-delà une surface extérieure circonférentielle de base (94) de la tige de fixation (26)
    caractérisé en ce que
    la région de transition (92) est formée sous forme d'une dépression.
  2. Le porte-pic selon la revendication 1,
    caractérisé en ce que la région de transition (92) est prévue, au moins dans quelques régions, par une dépression concave.
  3. Le porte-pic selon les revendications 1 ou 2,
    caractérisé en ce qu'au moins une région de surface de support (88, 90) s'approche du niveau radial de la surface extérieure circonférentielle de base (94) dans le sens de sa région d'extrémité circonférentielle loin de la région de transition (92) vers sa région d'extrémité circonférentielle proche de la région de transition.
  4. Le porte-pic selon les revendications 1, 2 ou 3,
    caractérisé en ce qu'au moins une région de surface de support (88, 90), dans sa région d'extrémité circonférentielle loin de la région de transition (92), fusionne de maniéré en paliers ou/et en courbe dans la surface extérieure circonférentielle de base (94) ou/et en ce qu'au moins une région de surface de support (88, 90) dans sa région d'extrémité circonférentielle proche de la région de corps (12) ou/et dans sa région d'extrémité circonférentielle loin de la région de corps (12), fusionne de maniéré en paliers ou/et en courbe dans la surface extérieure circonférentielle de base (94).
  5. Le porte-pic selon une des revendications 1 à 4,
    caractérisé en ce que les régions de surface de support (88, 90) ou/et la région de transition (92) sont formées de manière essentiellement symétrique par rapport à un plan central de support.
  6. Le porte-pic selon une des revendications 1 à 5,
    caractérisé en ce qu'au moins une région de surface de support (88, 90) est formée de manière courbée autour de l'axe longitudinal de tige (LB).
  7. Le porte-pic selon la revendication 6,
    caractérisé en ce que les deux régions de surface de support (88, 90) ont le même rayon de courbure ou/et point central de courbure.
  8. Le porte-pic selon une des revendications 1 à 7,
    caractérisé en ce que la tige de fixation (26) est formée, dans la région de sa surface extérieure circonférentielle de base (94), avec un contour extérieur circonférentiel circulaire, de préférence rond, ovale ou elliptique.
  9. Le porte-pic selon une des revendications 1 à 8,
    caractérisé en ce qu'un axe longitudinal central (LM) de l'ouverture recevant le pic (18) et l'axe longitudinal de tige (LB) sont inclinés l'un par rapport à l'autre avec un angle de 6° à 24°, de préférence d'environ 12°.
  10. Le porte-pic selon une des revendications 1 à 9,
    caractérisé en ce que la région d'application de membre de fixation (76) comprend une surface d'application de membre de fixation (80) et en ce que l'axe longitudinal de tige (LB) et une normale à la surface (FN) de la surface d'application de membre de fixation (80) sont inclinées l'un par rapport à l'autre avec un angle de 50° à 65°, de préférence d'environ 62,5°.
  11. Un système de porte-pic, comprenant :
    - un porte-pic (10) selon une des revendications précédentes,
    - une partie de base (44) ayant une ouverture de réception de tige de fixation (46) ouverte au moins vers un côté de support en contrepartie (48) et une ouverture de réception de membre de fixation (84) ouverte vers l'ouverture de réception de tige de fixation (46), où un membre de fixation (82) qui peut être déplacé pour exercer une charge sur la région d'application de membre de fixation (76) est reçu dans l'ouverture de réception de membre de fixation (84),
    où, dans l'ouverture de réception de tige de fixation (46) une région de support en contrepartie (86) est prévue, avec des régions de surface des support en contrepartie (96, 98) qui se rejoignent dans une autre région de transition (100) qui s'étend dans le sens d'un axe longitudinal d'ouverture de réception de tige de fixation (LA).
  12. Le système de porte-pic selon la revendication 11,
    caractérisé en ce que l'autre région de transition (100) est adaptée sous forme de saillie.
  13. Le système de porte-pic selon les revendications 11 ou 12,
    caractérisé en ce que l'autre région de transition (100) est adaptée, au moins dans quelques régions, sous forme de saillie convexe.
  14. Le système de porte-pic selon une des revendications 11 à 13,
    caractérisé en ce que l'autre région de transition (100) a une conception complémentaire à la région de transition (92).
  15. Le système de porte-pic selon une des revendications 11 à 14,
    caractérisé en ce qu'au moins une des régions de surface des support en contrepartie (96, 98) est adaptée pour faire, au moins dans quelques régions, saillie radialement vers l'intérieur par rapport à l'axe longitudinal d'ouverture de réception de tige de fixation (LA) au-delà d'une surface circonférentielle intérieure de base (108) de l'ouverture de réception de tige de fixation (46).
  16. Le système de porte-pic selon la revendication 15,
    caractérisé en ce qu'au moins une région de surface des support en contrepartie (96, 98) fait saillie, au moins dans sa région d'extrémité circonférentielle proche de l'autre région de transition (100) au-delà de la surface circonférentielle intérieure de base (108), et, dans le sens de sa région d'extrémité circonférentielle loin de l'autre région de transition (100), s'approche du niveau radial de la surface circonférentielle intérieure de base (108).
  17. Le système de porte-pic selon les revendications 15 ou 16,
    caractérisé en ce qu'au moins une région de surface des support en contrepartie (96, 98), au moins dans sa région d'extrémité axiale proche du côté de support en contrepartie (48) ou/et dans sa région d'extrémité axiale loin du côté de support en contrepartie (48), fusionne de maniéré en paliers ou/et en courbe dans la surface circonférentielle intérieure de base (108).
  18. Le système de porte-pic selon une des revendications 11 à 17,
    caractérisé en ce que l'ouverture de réception de tige de fixation (46) est adaptée avec un contour circonférentiel intérieur circulaire dans la région de sa surface circonférentielle intérieure de base (108) ou/et dans la région de ses régions de surface des support en contrepartie (96, 98).
  19. Le système de porte-pic selon une des revendications 11 à 18,
    caractérisé en ce que l'axe longitudinal d'ouverture de réception de tige de fixation (LA) et un axe longitudinal d'ouverture de réception de membre de fixation (LO) sont inclinés l'un par rapport à l'autre avec un angle de 50° à 65°, de préférence d'environ 62,5°.
EP11172527.1A 2010-12-03 2011-07-04 Support de burin et système de support de burin doté d'un support de burin et d'une partie de base Active EP2543815B1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
PL11172527T PL2543815T4 (pl) 2011-07-04 2011-07-04 Imak nożowy i układ imaka nożowego z imakiem nożowym i częścią podstawową
EP11172527.1A EP2543815B1 (fr) 2011-07-04 2011-07-04 Support de burin et système de support de burin doté d'un support de burin et d'une partie de base
KR1020137013629A KR101753305B1 (ko) 2010-12-03 2011-12-02 치즐 홀더, 및 치즐 홀더와 베이스부를 구비하는 치즐 홀더 시스템
SG2013041637A SG190927A1 (en) 2010-12-03 2011-12-02 Chisel holder, and chisel holder system comprising a chisel holder and a base part
JP2013541376A JP5822940B2 (ja) 2010-12-03 2011-12-02 チゼルホルダ、並びに当該チゼルホルダ及びベース部を具備するチゼルホルダシステム
PCT/EP2011/071642 WO2012072802A2 (fr) 2010-12-03 2011-12-02 Porte-burin et système de porte-burin comprenant un porte-burin et une partie de base
AU2011334855A AU2011334855B2 (en) 2010-12-03 2011-12-02 Chisel holder, and chisel holder system comprising a chisel holder and a base part
BR112013012781A BR112013012781B8 (pt) 2010-12-03 2011-12-02 Retentor de cinzel e sistema retentor de cinzel
TW100144342A TWI468253B (zh) 2010-12-03 2011-12-02 刀架以及具有刀架和基礎部件的刀架系統
US13/991,297 US9163502B2 (en) 2010-12-03 2011-12-02 Chisel holder, and chisel holder system comprising a chisel holder and a base part
RU2013130261/03A RU2563008C2 (ru) 2010-12-03 2011-12-02 Резцедержатель и система резцедержателя с резцедержателем и корпусом
CN2011204953893U CN202788849U (zh) 2010-12-03 2011-12-02 刀架以及具有刀架和基础部件的刀架系统
CN201110395057.2A CN102486022B (zh) 2010-12-03 2011-12-02 刀架以及具有刀架和基础部件的刀架系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11172527.1A EP2543815B1 (fr) 2011-07-04 2011-07-04 Support de burin et système de support de burin doté d'un support de burin et d'une partie de base

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EP2543815A1 EP2543815A1 (fr) 2013-01-09
EP2543815B1 true EP2543815B1 (fr) 2019-09-04

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6685273B1 (en) * 2000-02-15 2004-02-03 The Sollami Company Streamlining bit assemblies for road milling, mining and trenching equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057302B4 (de) 2004-11-26 2011-01-13 Wirtgen Gmbh Meißelhalter
JP2008540875A (ja) * 2005-05-13 2008-11-20 グラウンド アソールト ツールズ ピーティーワイ エルティーディー 切断工具保持具及び使用方法
CN102245857B (zh) * 2008-11-07 2014-08-27 布莱肯资源私人有限公司 用于可更换工具的安装装置
DE102009059189A1 (de) * 2009-12-17 2011-06-22 Wirtgen GmbH, 53578 Meißelhalter und Basisteil zur Aufnahme eines Meißelhalters

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6685273B1 (en) * 2000-02-15 2004-02-03 The Sollami Company Streamlining bit assemblies for road milling, mining and trenching equipment

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EP2543815A1 (fr) 2013-01-09
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