EP2646653A2 - Porte-outil - Google Patents

Porte-outil

Info

Publication number
EP2646653A2
EP2646653A2 EP11788889.1A EP11788889A EP2646653A2 EP 2646653 A2 EP2646653 A2 EP 2646653A2 EP 11788889 A EP11788889 A EP 11788889A EP 2646653 A2 EP2646653 A2 EP 2646653A2
Authority
EP
European Patent Office
Prior art keywords
removal
holder according
bit holder
removal surfaces
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.)
Granted
Application number
EP11788889.1A
Other languages
German (de)
English (en)
Other versions
EP2646653B1 (fr
Inventor
Cyrus Barimani
Karsten Buhr
Guenter Haehn
Thomas Lehnert
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 claimed from DE102010061019A external-priority patent/DE102010061019A1/de
Application filed by Wirtgen GmbH filed Critical Wirtgen GmbH
Priority to SI201131985T priority Critical patent/SI2646653T1/sl
Publication of EP2646653A2 publication Critical patent/EP2646653A2/fr
Application granted granted Critical
Publication of EP2646653B1 publication Critical patent/EP2646653B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • 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
    • 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
    • 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
    • E21C35/191—Means for fixing picks or holders for fixing holders
    • 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
    • E21C35/1933—Means for fixing picks or holders using bolts as main fixing elements the picks having a cylindrical shank

Definitions

  • the invention relates to a bit holder for a tillage machine, in particular a road milling machine, a mining machine or the like, with a support body to which a plug-in approach is directly or indirectly connected to a plug approach side, wherein the support body has two first and / or two second Abtrag lake to each other are at an angle, and wherein the support body has a processing side having a chisel receptacle.
  • a bit holder which forms a support body with a one-piece molded plug neck.
  • the support body is penetrated by a cylindrical bore formed as a chisel.
  • a machining tool in this case a round shank chisel, are used.
  • the support body has two mutually angled Abtrag lake, which for supporting on corresponding support surfaces of a base part serve.
  • the base part has a plug-in receptacle into which the bit holder with its plug-in extension can be inserted interchangeably.
  • the removal surfaces of the chisel holder abut against the support surfaces of the base part.
  • a clamping screw is used, which jams the insertion lug in the socket of the base part.
  • the machining tool engages in the substrate to be processed. This high transfer forces are transmitted. These are transferred from the machining tool to the bit holder. There they are passed on via the Abtrag vom in the base part.
  • the force direction and also the amount of force varies under otherwise identical conditions, solely due to the fact that the machining tool forms a chip (commaspan) thickening from the entry point to the exit point.
  • the force direction and the amount varies depending on various parameters such as the milling depth, the feed, the material to be machined, etc.
  • the design of a chisel holder shown in US 3,992,061 can not dissipate the machining forces with sufficiently good service life, especially at high feed rates , In particular, the wear surfaces strike fast.
  • the plug-in approach is exposed to high bending stresses and there is a risk that after a component fatigue a plug neck breakage occurs.
  • a further bit holder is known.
  • This has a support body which is supported by projections on a base part.
  • a clamping part is formed, which can be clamped via wedge joints with the base part.
  • US 4,828,327 shows a bit holder, which is designed as a solid block and is penetrated by a chisel holder.
  • the bit holder has a threaded receptacle which is in alignment with a screw receptacle of a base part. Through the screw holder, a fastening screw can be passed and screwed into the threaded receptacle of the chisel holder. When tightening the mounting screw of the bit holder is pulled into an L-shaped recess of the base part and supported there on support surfaces.
  • bit holder are usually arranged projecting on the surface of a Fräswalzenrohres.
  • lateral forces also occur which act transversely to the tool feed direction.
  • These lateral forces can not always be taken sufficiently stable with the chisel holders described in US Pat. No. 4,828,327.
  • these transverse forces are transferred into the fastening screw, which is then subjected to strong shear.
  • first and / or second removal surfaces diverge from the insertion side in the direction of the processing side.
  • the removal surfaces thus form a prism-shaped support in the region of the insertion side and allow here a reliable power transmission from the bit holder on the base part.
  • This direct support also reduces the load on the plug-in projection during the machining operation.
  • the arrangement of the removal surfaces according to the invention also takes into account the force curve which typically varies with tillage tools, so that overall a longer service life can be achieved. According to a preferred embodiment of the invention, it may be provided that the surface normals of the first and / or second removal surfaces point in each case to their bit holder side viewed in the tool advance direction.
  • the removal surfaces are arranged, for example when using the bit holder on a Fräswalzenrohr inclined to the axis of rotation of the Fräswalzenrohres.
  • the first and / or second removal surfaces include an obtuse angle, in particular in the range between 100 ° and 140 °.
  • This angular arrangement guarantees that the bit holder can easily be inserted in confusing areas and in rough construction site operation in a base part, so that a reliable assignment of the Abtrag lake is guaranteed to the support surfaces of the base part. In addition, it is prevented that even after a long period of use in which, if necessary, the Abtrag vom work off a bit far from the support surfaces, jamming occurs. Thus, the chisel holder can always be changed easily.
  • this angular employment of the first and / or second removal surfaces guarantees reliable removal of the machining forces.
  • the opening angle depicts the wide range of directions from which the transverse forces can act in the course of the tool engagement and by changes in the other parameters.
  • this angle range between the first removal surfaces is particularly preferably between 100 ° and 120 ° and / or the angular range between the second removal surfaces is between 120 ° and 140 °, then the tool system is designed in an optimized way for use in road milling applications and the loading conditions occurring thereby .
  • An inventive bit holder can be designed such that the removal surfaces are at least partially interconnected via a transitional section in the region of the plug approach side. Accordingly, the ablation surfaces do not hit each other at the angle vertex, so that no sharp-edged angle transition occurs, which can be damaged.
  • a Nachsetz Symposium Berlin be created with the transition section and in conjunction with the base part.
  • the bit holder can be continuously inserted into this adjustment space, wherein the removal surfaces always remain applied to the support surfaces.
  • the plane-surface system remains intact even if, when the base part of the chisel holder must be replaced with a new and that several times.
  • the plug-in approach is at least partially connected in the area of the removal surfaces to the plug-in side. This allows a direct assignment of the removal surfaces to the insertion projection, which leads to a smaller component size and, moreover, offers an optimized force flow.
  • a bit holder according to the invention may be characterized in that the longitudinal axis of the plug attachment and the central longitudinal axis of the prisms formed by the first or second removal surfaces enclose an angle in the range between 100 ° and 130 °. Again, an optimal power flow is achieved by this design feature.
  • first removal surfaces in the feed direction be arranged at least in regions in front of the insertion projection and the second removal surfaces in the feed direction at least in regions behind the insertion projection.
  • This design particularly contributes to the varying force distribution during the machining process. use bill, and it is the Steckansatz of machining forces further relieved.
  • the first removal surfaces at least partially form the underside of a front apron.
  • the front apron usually covers a front portion of the base part, thus protecting it from wear.
  • the fact that now the front apron is also used for attaching the Abtrag lake results in a compact design, and it can be the chisel holder easy to manufacture.
  • the second removal surfaces at least partially form the underside of a rear support lug.
  • a construction which provides a chisel holder, for example a bore, for receiving a machining tool, in particular a round shank chisel, on the chisel holder it is optimally provided that the central longitudinal axis of the chisel holder is arranged at least in regions between the ablation surfaces.
  • a good force distribution of the machining forces introduced via the machining tool can be achieved on both removal surfaces.
  • the bit holder can be positioned in a different orientation to a Fräswal zenrohr, while the reliable power transmission is maintained.
  • bit receptacle merges into a flushing channel, and that the flushing channel emerges at least in regions in the region between the second removal surfaces.
  • the flushing channel is thus arranged so that the wear surfaces do not hit each other pointedly.
  • the first and the second removal surfaces each form a Abtrag lakecover, wherein the Abtrag lake are each made V-shaped.
  • the V-shaped employment of Abtrag lake prisms are formed in the sense of horradossbaus. These two prisms guarantee a stable support of the chisel holder against the base part.
  • the prisms formed by the first and second removal surfaces have a central longitudinal axis. This central longitudinal axis lies in the bisecting plane which is formed between the two removal surfaces.
  • the central longitudinal axis of the plug-in approach is in the angular range of -10 ° to + 10 ° to the bisector of the first and / or second Abtrag vomcoes.
  • a uniform bias is applied during bracing of the chisel holder with the base part.
  • the central longitudinal axis of the plug-in projection is in the angular range of -2 ° to + 2 ° to the bisector of the first and / or second Abtrag vomschreibes.
  • An inventive bit holder can also be characterized in that the surface normals of the first and / or second removal surfaces are inclined to the feed direction, so that transverse forces are reliably transferable.
  • a particularly preferred embodiment of the invention is such that a plane receiving the bisecting line is arranged between the first and / or the second removal surfaces, and that the insertion projection is arranged symmetrically with respect to this plane.
  • the bit holder can also be mounted on various mounting positions of a milling drum tube or the like, or this has the advantage that only one variant is required and does not have to work with left and right bit holders.
  • connection region of the insertion projection is arranged on the support body at least 80% in the region of the Abtrag vomcos formed by the first Abtrag perennial pastules.
  • Figure 1 shows a combination of a base part and a chisel holder in a perspective side view
  • FIG. 2 shows the illustration according to FIG. 1 in an exploded view
  • FIG. 3 shows the bit holder according to FIGS. 1 and 2 in a front view
  • Figure 4 shows the bit holder according to Figures 1 to 3 in rear view
  • FIG. 5 shows the bit holder according to FIGS. 1 to 4 in a side view from the left;
  • FIG. 6 shows the illustration according to FIG. 5 in a vertical section through the median transverse plane of the bit holder
  • FIG. 7 shows the bit holder according to FIGS. 1 to 6 in a side view from the right and partly in section;
  • FIG. 8 shows a sectional profile marked in FIG. 5 with VIII-VIII
  • FIG. 9 shows a sectional profile marked IX-IX in FIG. 7;
  • Figure 1 the tool combination according to Figure 1 in plan view
  • FIG. 12 shows a sectional profile marked XII-XII in FIG. 11;
  • FIG. 13 shows the bit holder according to FIG. 5 in front view;
  • Figure 14 shows the bit holder in rear view
  • Figure 15 shows the bit holder in a rotated side view.
  • FIG. 1 shows a tool combination consisting of a base part 10 and a bit holder 20.
  • the bit holder 20 is exchangeably connected to the base part 10.
  • the base part 10 has a solid base body 13, which has a lower connection side 1 1.
  • This connection side 1 1 is concave, wherein the curvature is selected according to the outer diameter of a Fräswalzenrohres.
  • the base member 10 can be placed with its connection side 1 1 on the outside of the Fräswalzenrohres and welded to this.
  • the base body 13 has at the front a projection which is bounded laterally by inclined surfaces 14 and front side of inclined surfaces 15.
  • the inclination surfaces 15 are set at an angle to each other and the inclined surfaces 14 connect at an angle to the inclination surfaces 15. This results in the front side an arrow-shaped geometry of the base part 10, which leads to a better clearing action of the base part 10.
  • FIG. 2 illustrates, a bit holder holder 16 with a plug-in receptacle 16.7 is incorporated in the base part 10.
  • the plug-in receptacle 16.7 penetrates the main body 13 completely and thus discharges into the connection side 11.
  • a threaded receptacle 18 is incorporated, which opens into the plug receptacle 16.7 (see Figure 12).
  • the bit holder holder 16 has first support surfaces 16.1 and second support surfaces 16.2.
  • the first support surfaces 16.1 form a first support surface pair and the second support surfaces 16.2 form a second support surface pair.
  • the support surfaces 16.1, 16.2 are in each case angular lig arranged to each other.
  • the support surfaces 16.1 are each made to the support surfaces 16.2 at an angle, so that an obtuse chisel holder receptacle 16 results.
  • each Nachsetzsammlung 16.3, 16.4, 16.5 provided in the form of recesses.
  • a recess 16.6 is still provided, which creates a transition from the bit holder holder 16 to the threaded receptacle 18.
  • a surface 17 is formed around the entry into the threaded receptacle 18, which surface is delimited laterally by inclined surfaces, the inclined surfaces opening divergently toward the rear side of the base part 10.
  • the pressure screw 40 has a threaded portion 41, with which it can be screwed into the threaded receptacle 18.
  • the pressure screw 40 is formed with a pressure projection 42 in the form of a truncated cone-shaped pin, which is integrally formed on the threaded portion 41.
  • the bit holder 20 can be connected to the base part 10.
  • the bit holder 20 has a support body 21, which is equipped with an apron 22 on the front side.
  • the apron 22 integrally formed integrally forms a web 22.1, which rises from the skirt 22 upwards.
  • To the support body 21 and a projection 23 is integrally coupled, which terminates in a cylindrical portion 24.
  • the cylindrical portion 24 is provided with wear marks, which are formed here as circumferential grooves 26.
  • the cylindrical portion 24 terminates with a support surface 25 which concentrically surrounds the bore entry of a bit holder 27.
  • the bit holder 27 merges with the support surface 25 via a chamfer-shaped insertion section 27.1.
  • the bit holder 27 is formed as a through hole.
  • the support body 21 is provided with a rear-side recess, which serves as a flushing channel 28.
  • the flushing channel 28 thus opens the bit receptacle 27 in the region of its bore outlet radially outward.
  • FIG. 3 shows that the support body 21 has first discharge layers 29.1 in the region of the skirt 22.
  • These removal surfaces 29.1 are at an obtuse angle ⁇ to one another (see FIG. 13) and are connected to one another via a transitional section 29.2.
  • the angle ⁇ between the first removal surfaces 29.1 corresponds to the angle between the first support surfaces 16.1 of the base part 10.
  • FIG. 4 shows that the support body 21 has second removal surfaces 29.4 pointing downwards on the back.
  • the second removal surfaces 29.4 are at an angle ⁇ 2 to one another (see FIG. 14), the angle ⁇ 2 between the second removal surfaces 29.4 here also corresponding to the angle between the second support surfaces 16.2 of the base part 10. While the first removal surfaces 29.1 merge into one another by means of the transition section 29.2, a transition region is formed between the second removal surfaces 29.4 through the flushing channel 28 and a transition section 29.5.
  • the removal surfaces 29.1 and 29.4 each form Abtrag vomcoe in the form of a prism.
  • these prisms have a central longitudinal axis MLL, which is formed in the bisector plane between the two first removal surfaces 29.1 and the second removal surfaces 29.4.
  • these bisecting planes are marked WE.
  • the central longitudinal axis is indicated there with MLL, wherein the central longitudinal axis MLL can in principle be located at an arbitrary position within the bisecting plane.
  • FIGS. 3 and 4 in conjunction with FIGS. 13 and 14, show that the first removal surfaces 29.1 and also the second removal surfaces 29.4 diverge from the insertion projection side toward the processing side.
  • the surface normals correspondingly converge on the removal surfaces 29.1, 29.4 from the insertion projection side toward the machining side.
  • the surface normals thus converge in the region of the tool engagement point, in which the machining forces are introduced into the tool system.
  • the median transverse plane MQ of the chisel holder 20 is marked.
  • the bit holder is constructed mirror-symmetrically to this median transverse plane MQ, so that it can be installed on a milling drum as a right or left part.
  • the processing force acts not only in the direction of the image plane according to Figure 5, but also in the transverse direction. These transverse force components are then ideally intercepted via the angled setting ( ⁇ - ⁇ , ⁇ 2 ) of the removal surfaces 29.1, 29.4. Since at the beginning of the tool engagement, the machining forces scatter less in the transverse direction, the angle ⁇ can also be chosen smaller than ⁇ 2 .
  • FIG. 5 further shows that an insertion projection 30 is integrally formed on the support body 21 and merges via a rounding transition 29.3 into the first removal surfaces 29.1 and the second removal surfaces 29.4.
  • the insertion projection 30 is arranged so that it substantially, in the present case about 90%, in the region of the first Abtrag vom 29.1 connects to the support body 21.
  • the plug-in projection 30 carries front two contact surfaces 31 .1. These are, as Figure 3 reveals, formed as a convex curved cylindrical surfaces.
  • the contact surfaces 31 .1 extend longitudinally and parallel to the central longitudinal axis M (see FIG. 5) of the insertion projection 30.
  • the contact surfaces 31 .1 are therefore also parallel to one another.
  • the contact surfaces 31 .1 are arranged spaced apart in the circumferential direction of the plug-in extension 30. They have the same radius of curvature and are arranged on a common pitch circle. The curvature radius corresponds to half the circle diameter.
  • a recess 31 .2 is provided, wherein the contact surfaces 31 .1 parallel to the recess 31 .2 extend.
  • the recess can have a wide variety of shapes, for example a simple mirror.
  • the recess 31 .2 forms a Einmuldung which is concealed in a concave between the contact surfaces 31 .1.
  • the concavity is designed so that a part-cylindrical geometry results.
  • the recess 31 .2 does not extend over the entire length of the insertion projection 30, but only over a partial area, as shown in FIG. 13 reveals.
  • the recess 31 .2 is open to the free end of the plug-in projection 30, ie in the insertion direction.
  • the recess 31 .2 opens also undercut radially outward.
  • the insertion projection 30 has on the back a pressure screw receptacle 32, which is equipped with a pressure surface 32. 1.
  • Figures 6 and 9 illustrate that the recess 31 .2 between the two contact surfaces 31 .1 has a concave vaulted geometry, and in particular can form a partially cylindrical cross-section.
  • FIG. 8 illustrates the region of the pressure screw receptacle 32, wherein the pressure surface 32. 1 is set at an angle .delta.
  • this angle of attack ⁇ is preferably in the range between 20 ° and 60 ° in order to achieve an optimal catching action of the bit holder 20.
  • FIG. 7 furthermore shows that the pressure surface 32. 1 is arranged at a distance from the connection region of the insertion projection 30 to the support body 21 at a distance A.
  • the contact surfaces 31 .1 are spaced by the distance B from the connection region of the insertion projection 30 to the support body 21.
  • the area Focus of the contact surfaces 31 .1 is spaced by the distance C from the centroid of the pressure surface 32.1.
  • the assignment is such that the transition section 29.2 is above the adjuster 16.4, the adjoining section 16.5 is bridged by the transition section 29.5 and the lateral repositioning sections 16.3 are bridged by the angle section which is between the first sections and second removal surfaces 29.1, 29.4 is formed.
  • About the spacing of the chisel holder 20 in the region of these Nachsetzschreib 16.3, 16.4, 16.5 is achieved that during the machining operation of the bit holder 20 in the Nachsetzsammlung 16.3, 16.4, 16.5 can continue if the Abtrag vom 29.1, 29.4 and / or the support surfaces 16.1 , 16.2 work off. This is especially true when worn bit holder 20 are replaced with existing base member 10 against new.
  • the pressure screw 40 is screwed into the threaded receptacle 18.
  • the pressure paragraph 42 presses with its flat end face on the pressure surface 32.1 and thus causes a pull-in force, which acts in the direction of the central longitudinal axis M of the plug-in projection 30.
  • the pressure screw 40 is employed at an angle to the central longitudinal axis M of the plug-in projection 30 in such a way that a clamping force acting in the direction of the front side is introduced into the plug-in projection 30. This clamping force is transmitted via the contact surfaces 31 .1 in the corresponding concave counter surface of the cylindrical portion of the socket 16.7.
  • the spacing of the abutment surfaces 31 .1 via the recess 31 .2 guarantees that the insertion projection 30 via the two laterally formed by the contact surfaces 31 .1 support areas is reliably fixed. Thus, the occurring surface pressures are kept low, in particular via the two contact surfaces 31 .1, which leads to a reliable fixation of the plug-in projection 30.
  • bit holders 20 are worn, they can easily be replaced with new unworn or partially worn bit holders 20 (which can be used, for example, for rough finishing work).
  • FIG. 12 shows that the base part 10 carries a projection 50 which projects into the plug-in receptacle 16.7.
  • This projection 50 is presently formed by a cylindrical pin which is driven from the connection side 1 1 ago in a part-cylindrical recess 19.
  • the partially cylindrical recess 19 surrounds the cylinder pin, by more than 180 ° of its circumference, so that it is held captive.
  • the region of the cylindrical pin projecting into the bit receptacle 27 engages in the recess 31 .2 between the contact surfaces 31 .1.
  • FIG. 5 shows that the central longitudinal axis 24.1 of the bit receptacle 27 is at an angle ⁇ or ⁇ to the longitudinal orientation of the transition section 29.2 or 29.5 and thus also to the central longitudinal axis MLL of the prism formed by the first removal surfaces 29.1 or by the second removal surfaces 29.4.
  • the angle ⁇ can be between 40 ° and 60 ° or ⁇ in the range between 70 ° and 90 °.
  • FIG. 5 also shows that when the removal surfaces 29.1 and 29.4 are projected in a plane transverse to the feed direction (projection corresponding to FIG. surfaces 29.1 and 29.4 are angled in an angle ⁇ in the range between 40 ° and 60 ° to each other, or that the opening angle between the transition sections 29.2 and 29.5 in the longitudinal direction of Figure 5 between 120 ° and 140 °. Accordingly, the angle ⁇ 'between the central longitudinal axes MLL of the two prisms formed by the removal surfaces 29.1 and 29.4 (removal surface pairs) is in the range between 120 ° and 140 °.
  • the first removal surfaces 29.1 are at an angle ⁇ and the second removal surfaces 29.4 are at an angle ⁇ to the central longitudinal axis M of the insertion projection 30.
  • the angles ⁇ and ⁇ can be in the range between 100 ° and 130 °, preferably in the range between 1 10 ° and 120 °.
  • FIG. 13 shows that the first removal surfaces 29.1 enclose an angle ⁇ .
  • this angle ⁇ should be in the range between 100 ° and 120 °.
  • the bisector of this angle ⁇ lies in a plane and Figure 13 illustrates that the plug-in projection 30 is arranged symmetrically to this plane.
  • the rear second removal surfaces 29.4 are set at an angle ⁇ 2 corresponding to one another, as FIG. 14 shows.
  • the angle ⁇ 2 may deviate from the angle ⁇ and in the present embodiment lie between 120 ° and 140 ° and the plug-in projection 30 is also arranged and equipped symmetrically to the bisector plane of this angle ⁇ 2 .
  • FIG. 15 shows that in each case a first removal surface 29.1 of the first removal surface pair and a second removal surface 29.4 of the second removal surface pair are set at an angle ⁇ to one another and form a support region.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Road Repair (AREA)
  • Knives (AREA)
  • Milling Processes (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Earth Drilling (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)

Abstract

L'invention concerne un porte-outil pour une machine à travailler le sol, notamment une fraiseuse de route, comportant un corps support auquel est relié directement ou indirectement un élément rapporté d'enfichage sur un côté d'élément rapporté d'enfichage, le corps support présentant deux premières et/ou deux deuxièmes surfaces d'excavation disposées à un angle l'une par rapport à l'autre, et le corps support présentant par ailleurs un côté de travail comprenant un logement d'outil. Pour obtenir une conception stable et solide d'un tel porte-outil, les premières et/ou deuxièmes surfaces d'excavation divergent à partir du côté d'élément rapporté d'enfichage en direction du côté de travail.
EP11788889.1A 2010-12-03 2011-12-02 Porte-outil Active EP2646653B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201131985T SI2646653T1 (sl) 2010-12-03 2011-12-02 Držalo dleta

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010061019A DE102010061019A1 (de) 2010-12-03 2010-12-03 Meißelhalter und Werkzeugunterteil für einen Meißelhalter
DE102011051521 2011-07-04
PCT/EP2011/071588 WO2012072786A2 (fr) 2010-12-03 2011-12-02 Porte-outil

Publications (2)

Publication Number Publication Date
EP2646653A2 true EP2646653A2 (fr) 2013-10-09
EP2646653B1 EP2646653B1 (fr) 2021-04-28

Family

ID=45063170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11788889.1A Active EP2646653B1 (fr) 2010-12-03 2011-12-02 Porte-outil

Country Status (14)

Country Link
US (2) US9151157B2 (fr)
EP (1) EP2646653B1 (fr)
JP (1) JP5984832B2 (fr)
KR (2) KR101754385B1 (fr)
CN (2) CN202431272U (fr)
AU (1) AU2011334839B2 (fr)
BR (1) BR112013011919B1 (fr)
ES (1) ES2876005T3 (fr)
HU (1) HUE055782T2 (fr)
RU (1) RU2580545C2 (fr)
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CN202431272U (zh) 2012-09-12
EP2646653B1 (fr) 2021-04-28
TWI568919B (zh) 2017-02-01
WO2012072786A2 (fr) 2012-06-07
US9151157B2 (en) 2015-10-06
KR101788266B1 (ko) 2017-10-19
TW201224271A (en) 2012-06-16
KR20150123978A (ko) 2015-11-04
BR112013011919A2 (pt) 2017-11-14
AU2011334839B2 (en) 2015-07-16
CN102562063B (zh) 2015-05-27
WO2012072786A3 (fr) 2012-11-29
BR112013011919B1 (pt) 2020-03-10
JP2014501861A (ja) 2014-01-23
JP5984832B2 (ja) 2016-09-06
SG190748A1 (en) 2013-07-31
US9719348B2 (en) 2017-08-01
KR101754385B1 (ko) 2017-07-19
US20130241266A1 (en) 2013-09-19
ES2876005T3 (es) 2021-11-11
KR20130088189A (ko) 2013-08-07
RU2013130247A (ru) 2015-01-10
SI2646653T1 (sl) 2021-08-31
HUE055782T2 (hu) 2021-12-28
US20160076370A1 (en) 2016-03-17
CN102562063A (zh) 2012-07-11
AU2011334839A1 (en) 2013-05-02

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