WO2011054334A1 - Cylindre de fraisage - Google Patents

Cylindre de fraisage Download PDF

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Publication number
WO2011054334A1
WO2011054334A1 PCT/DE2010/001259 DE2010001259W WO2011054334A1 WO 2011054334 A1 WO2011054334 A1 WO 2011054334A1 DE 2010001259 W DE2010001259 W DE 2010001259W WO 2011054334 A1 WO2011054334 A1 WO 2011054334A1
Authority
WO
WIPO (PCT)
Prior art keywords
holder
box
bolt
change
receptacle
Prior art date
Application number
PCT/DE2010/001259
Other languages
German (de)
English (en)
Other versions
WO2011054334A4 (fr
Inventor
Michael Steinbrecher
Willi Jacobs
Original Assignee
Michael Steinbrecher
Willi Jacobs
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 Michael Steinbrecher, Willi Jacobs filed Critical Michael Steinbrecher
Publication of WO2011054334A1 publication Critical patent/WO2011054334A1/fr
Publication of WO2011054334A4 publication Critical patent/WO2011054334A4/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • E21C25/18—Saws; Discs; Wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits
    • B28D1/188—Tools therefor, e.g. having exchangeable cutter bits with exchangeable cutter bits or cutter segments
    • 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
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging 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

Definitions

  • the invention relates to a milling drum for mobile machines, especially for road and road construction, with a variety of
  • Tool holders consisting of mounted on the roll surface boxes in each of which a changeover holder with a substantially cylindrical .
  • Receptacle is used for the shank of a tool, wherein the box and change holder are cast steel bodies and are held by a bolt in engagement.
  • These machines can also be used in forestry operations (forest mulching and grubbing milling) and soil stabilization.
  • Such a milling drum is known from DE 10350604 AI.
  • the change holder described therein consists of a lower part, which is in wedging engagement with the box, and an upper part, the center axis of which is pivoted against the center plane of the lower part by a small angle.
  • This tool holder can not be used variably, as it always gives it a certain angular deviation of the tool used. If a different angular deviation of the tool from the center plane of the box is desired, another change holder must be cast with a correspondingly changed pivot position of the upper part relative to the lower part.
  • the casting for producing the change holder for various tools is therefore complicated. Due to the tilted upper part of the swap holder, an increased dynamic pressure arises during the milling operation of the roller, which increases at a constant milling and crushing performance
  • the invention is based on the object, the aforementioned
  • Another object compared to the above-mentioned prior art is to simplify the tool exchange on the roller, which is particularly advantageous on the construction site. Further advantages of the invention will become apparent from the following description.
  • These change holders are generally equipped with round shank cutters.
  • This change-holder group is generally equipped with scrapers.
  • the rotation lock can be realized by a groove in the annular support surface surrounding the receptacle and a pin engaging in the groove on the annular surface of the scraper blade surrounding the shaft.
  • the changeover holder with ot * 0 expediently have an annular, planar support surface, which is inclined to the perpendicular to the median plane M by the angle ⁇ and on which the chisel head is supported.
  • the core to education the shank receiving and the end wall of the mold for forming the support surface are generally a molded part. By rotating this molded part by 180 ° about the central axis of the casting mold, the two changeover holder can be cast with + a and - ⁇ in the same shape.
  • the changeover holder has a front part and a rear part and is locked in the box inserted change its front part on the underside with the box and his back led by inserting into the box.
  • the chisel holder builds relatively narrow, which is advantageous for the power consumption during operation.
  • a bolt is cast on the front part on the underside, a bolt receptacle is cast into the box in front and the box has a rear insertion recess formed by its rear wall, a top wall and side walls for the rear part of the replacement holder.
  • Front part located lock builds the chisel holder narrow.
  • the changeover holder is held in front and in the rear, whereby a distributed power transmission from the tool / change holder on the box and thus on the roller is achieved.
  • the changeover holder is fixed by the lock at its front end in the transverse direction and in the circumferential direction (the roller).
  • the bolt and the bolt receptacle and / or the rear part of the removable holder and the insertion receptacle are wedge-shaped. In case of loosening of the replaceable holder or wear, an adjustment is possible by the retainer is pulled by the bolt further into the box.
  • the rear wall of the box has a through hole and the rear part of the swap body has a threaded hole for the bolt.
  • the bolt which is supported with its head on the rear wall, passes through the passage opening and is in screw in the threaded hole of the swap holder until the swap body is firmly anchored in the box. Due to the distance of the rear part of the tool shaft receiving the front part of the swivel holder, the rear end of an inserted tool is accessible. The tool can be removed from the holder or the change holder with tool can then be knocked out of the box from the back.
  • the end-face shape of the latch and box generally also includes an upward chamfer from the surface of the milling drum to the chisel.
  • the frontal streamline shape thus created reduces the back pressure and thus the power consumption for a given milling work.
  • the change holder group When inserted into the box change holder forms the receiving axis X with the tangent plane on the roll surface in Boxmitte- an angle ß in the range of 20 to 40 °, in particular from 22 to 30 °.
  • This flat construction also has a favorable effect on the power consumption during operation.
  • the box has a rear wall with a through hole
  • a coupling body is exchangeably contained in a rear part of the swap body and the coupling body has a threaded bore into which the bolt supported on the rear wall of the box is screwed.
  • the bolt is not screwed directly into the rear part of the interchangeable holder, but in the coupling body located in the rear part, which transmits the tension exerted by the bolt on the changeover holder.
  • the rear part of the exchange holder includes a transverse bore into which the coupling body is inserted in a rotationally fixed.
  • the transverse bore preferably passes from one side to the other through the rear of the swap holder.
  • a tight-fitting coupling body can be knocked out of the transverse bore.
  • the coupling body is generally positively seated in the transverse bore.
  • the cross sections of the coupling body and the transverse bore ensure the rotationally fixed seat of the coupling body and are, for example, circular with at least one longitudinal groove or longitudinal spring or polygonal, eg square with rounded corners.
  • the rotationally fixed guide of the coupling body in the transverse bore ensures the alignment of said threaded bore on the through hole of the rear wall, so that the bolt can be screwed into the threaded bore and thereby the changeover holder can be pulled by means of coupling body with the box.
  • the change holder can also be made with the transverse bore as a casting.
  • the coupling body can be made inexpensively from standard rod material.
  • the axis of the threaded bore with the central axis of the change holder forms an acute angle ⁇ .
  • the angle Y is preferably in the range of 10 to 50 °, more preferably in the range of
  • a groove is formed in the support surface of the swap holder, which is at least partially open to its outer periphery.
  • the known per se groove for rotation is circumferentially closed. It is therefore unavoidable that this groove becomes clogged with fines, especially when a rotating bit is held without a pin engaging in the groove.
  • a more or less Nut prevents the complete introduction and proper support of the chisel on the changer. Due to the inventive opening of the groove on the outer periphery of the accumulated solid fine material can escape, so that a uniform over the circumference support of the bit is ensured on the changeover holder. At the same time, the conicity can be widened at the entrance of the bit receptacle, whereby the hammering of the bit with sleeve is facilitated.
  • the box of the bit holder can have a hump-shaped top wall with a cover plate made of hard metal.
  • the hard metal plate is soldered to the top wall and serves as an additional breaking tool.
  • Material can therefore be broken in the first stage by working against the crusher bar chisel and in the second stage by the equipped with hard metal plate bump of the boxes against the crusher bar. The crushing power is thereby improved.
  • FIG. 2 shows the top view of the bit holder of FIG. 1,
  • FIG. 5 shows a section analogous to FIG. 4, but with a change holder from a second change holder group
  • FIG. 6 shows a section analogous to FIG. 4, but with a change holder of a third change holder group and a chisel,
  • FIG. 9 is a perspective view of one opposite to FIG.
  • FIG. 10 shows a section along the line XX of FIG. 9,
  • Figure 11 is a perspective view of the coupling body used in the change holder of FIGS. 9 and 10 and
  • Figure 12 is a section corresponding to Fig. 3 of a bit holder in which the box and the changeover holder are modified.
  • the bit holder consists of a box 2 welded onto the roll 1, a change holder 3 inserted into the box 2, and a box and exchangeable holder holding each other in mutual engagement
  • Bolt 4 In the change holder 3, a round shank cutter 5 is used.
  • the box 2 has on both sides three openings 6, the function of which will be explained with reference to FIG.
  • the box 2 has on the front side a wedge-shaped bolt receptacle 7 which is open to the roll surface and to the side openings 6.
  • a rear wall 8 which merges into a top wall 9 upwards.
  • the rear wall 8 and top wall 9 form together with the two side walls 10 a slide-in receptacle 11 for the rear part 19 of the change holder 3.
  • the rear wall 8 has a through hole 12 for the bolt 4.
  • the insertion receptacle 11 has similar to the bolt receptacle 7 bottom side openings in conjunction with the two-sided openings 6. As can be seen from Figure 3, the insertion receptacle 11 is wedge-shaped.
  • a wedge-shaped latch 16 is cast on the underside at the front, which is in engagement with the wedge-shaped latch receptacle 7 of the box.
  • the front part 13 of the change holder 3 is connected via its bottom 17 and its side walls 18 with the wedge-shaped rear part 19.
  • the rear portion 19 includes a threaded bore 20 into which the threaded bolt 4 is screwed to hold latch 16 and latch receptacle 7 in wedging engagement.
  • the head of the threaded bolt has a hex socket.
  • the axis X of the round shank ⁇ chisel 5 is worsened by a small angle ⁇ against the median plane M of the change ⁇ holder 3 and the box 2 versc.
  • FIG. 4 illustrates this
  • FIG. 5 shows the section of the bit holder corresponding to FIG. 4 with a change holder of a second change holder group.
  • the axis X of the shaft holder is inclined at these change holders by the angle - ⁇ against the central axis Y of change holder and box.
  • the inclination angle ⁇ is generally in the range of 3 to 12 °, e.g. at 7 °.
  • FIG. 6 shows the section of the bit holder corresponding to FIG. 4 with a change holder of a third change holder group.
  • the inserted chisel therefore receives no angular momentum during operation.
  • This chisel holder group is suitable for round shank chisels, which should not rotate during operation, such as the inserted chisel 23, the front one
  • Hard metal strip 25 carries.
  • a groove 22 is provided in this changeover holder group in the supporting surface 21, in which engages a pin 24 located on the Abstützf 26 of the chisel 23.
  • FIG. 7 shows the flow-favorable cross-sectional shape of the chisel bar 23 and the flow path of the milled material, which contribute to the reduced power requirement of the milling drum.
  • Spring 31 cooperates.
  • the guide takes place between groove 30 and spring 31 and on the other hand through the bottom side 32 of the box.
  • the rear part is transversely spaced from the side walls 10 of the box. This also applies to the illustrations of FIGS. 4 to 6.
  • Transverse guide is essentially by groove 30 un ( * spring 31.
  • the bottom of the spring 31 and the bottom side 32 extend wedge-shaped, as shown in Figure 3 can be seen.
  • the change holder 3 shown in FIGS. 9 and 10 differs from the change holder shown in FIGS. 2 and 3 by the modified design of the rear part 19 and the presence of a circumferentially open groove 22 in the support surface 26.
  • the rear part 19 contains a continuous transverse bore 29 of substantially circular cross-section which intersects the through-bore 37, as can be seen in Figures 10 and 12.
  • a substantially cylindrical coupling body 33 is rotatably inserted.
  • the transverse bore 29 has a longitudinal spring 35 and the cylindrical coupling body 33 has a longitudinal groove 34, as can be seen from FIGS. 10 and 11.
  • the longitudinal spring 35 cooperating with the longitudinal groove 35 ensures the rotationally fixed guidance of the coupling body in the transverse bore 29.
  • the coupling body 33 includes a threaded bore 33 ', which is aligned with completely inserted into the transverse bore coupling body with the through hole 37. This forms the
  • FIG. 9 also show the groove 22 in the support surface 26, the groove 22 being partially open towards its outer periphery 22 '.
  • the rear part 19 of the interchangeable holder 3 includes a continuous transverse bore 29 of substantially square cross-section with rounded corners, wherein in the transverse bore a coupling body 33 of corresponding cross-section is rotatably inserted.
  • the coupling body 33 has a through-threaded bore 33 ', which upon complete insertion of the coupling Body is aligned with the through hole 12 of the box and the bore 37 of the rear part 19 of the change holder.
  • the screwed into the threaded bore 33 'bolt 4 moves as in the embodiment of Figure 3, the parts 16 and 19 of the removable holder into the corresponding wedge-shaped receptacles 7 and 11.
  • the angle ⁇ between the axis A of the threaded bore 33' and the central axis M ' of the change holder 3 is here about 27 °, whereby the bolt head 4 distance from the surface of the roller 1 wins.
  • the top wall 9 of the box is designed like a hump.
  • a cover plate 36 is soldered from hard metal. This results in addition to the chisel 5 an additional cooperating with the crusher bar tool.
  • the embodiment of the change holder 3 shown in FIGS. 10 and 12 has a bottom opening 38 in the bottom 17, which is connected to one of the side openings 6 of the box when the change holder is inserted into the box 2. Abrasion, dust and the like accumulating in the change-over holder can exit through the bottom opening 38 and opening 6 (FIG. 12).

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Abstract

L'invention concerne un cylindre de fraisage pour engins de travail mobiles, en particulier pour la construction de routes. Ledit cylindre présente une pluralité de dispositifs de retenue d'outils constitués de caisses fixées sur la surface circulaire du cylindre, dans lesquelles est introduit respectivement un support de remplacement muni d'un logement sensiblement cylindrique pour la tige circulaire d'un outil. La caisse et le support de remplacement sont des corps en acier coulé maintenus en prise par un boulon fileté, les plans médians M des caisses (2) et des supports de remplacement (3) introduits sont agencés de manière perpendiculaire à l'axe du cylindre et les supports de remplacement (3) sont sélectionnés parmi des groupes de supports de remplacement qui se distinguent par l'angle α entre l'axe X du logement et le plan médian M de son support de remplacement (3).
PCT/DE2010/001259 2009-11-07 2010-11-03 Cylindre de fraisage WO2011054334A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009052351.0 2009-11-07
DE200910052351 DE102009052351A1 (de) 2009-11-07 2009-11-07 Fräswalze

Publications (2)

Publication Number Publication Date
WO2011054334A1 true WO2011054334A1 (fr) 2011-05-12
WO2011054334A4 WO2011054334A4 (fr) 2011-07-21

Family

ID=43728973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2010/001259 WO2011054334A1 (fr) 2009-11-07 2010-11-03 Cylindre de fraisage

Country Status (2)

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DE (1) DE102009052351A1 (fr)
WO (1) WO2011054334A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192704B (zh) * 2016-08-31 2019-08-27 徐工集团工程机械有限公司 转子组件及冷再生机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010044649A1 (de) 2010-09-07 2012-03-08 Bomag Gmbh Wechselhaltersystem für einen Meißel
EP2963237A1 (fr) * 2014-07-03 2016-01-06 Sandvik Intellectual Property AB Ensemble de retenue de trépan de coupe à angle variable
DE102021112757A1 (de) * 2021-05-17 2022-11-17 Bomag Gmbh WECHSELHALTER, MEIßELWECHSELHALTERSYSTEM, FRÄSWALZE FÜR EINE STRAßENFRÄSMASCHINE UND STRAßENFRÄSMASCHINE

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324234A1 (de) * 1993-07-20 1995-01-26 Willi Jacobs Fräsbrecher
DE29510913U1 (de) * 1995-07-06 1995-09-28 Wagener, Helmut, 53577 Neustadt Vorrichtung zur Halterung eines Fräsmeißels
DE4431562A1 (de) * 1994-09-05 1996-03-07 Michael Steinbrecher Verfahren und Vorrichtung zum Aufbereiten von Grabensohlen für die Rohrverlegung
EP1186744A2 (fr) * 2000-09-08 2002-03-13 STEINBRECHER, Michael Porte-outil à changement rapide pour des outils sur tambour de coupe
DE10106381A1 (de) * 2001-02-12 2002-09-12 Michael Steinbrecher Mit Werkzeugen bestückte Walze für mobile Arbeitsmaschinen
DE10205791C1 (de) * 2002-02-13 2003-04-30 Michael Steinbrecher Wechselhaltersystem für Werkzeuge
DE10164804B4 (de) * 2000-12-20 2004-06-24 Kennametal Inc. Schneidwerkzeuganordnung
DE10350604A1 (de) 2003-10-30 2005-06-09 Michael Steinbrecher Schnellwechselhaltersystem
DE102005017760A1 (de) * 2005-04-18 2006-10-19 Michael Steinbrecher Schnellwechselhaltersystem
US20070114835A1 (en) * 2005-11-23 2007-05-24 Keystone Engineering & Manufacturing Corporation Flighting and tool holder
US20080164749A1 (en) * 2006-12-19 2008-07-10 Kennametal Inc. Overlapping Pedestals For Supporting A Block Secured To A Rotating Drum
DE202009001020U1 (de) * 2009-01-27 2009-04-02 Herrenknecht Ag Werkzeughaltersystem

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324234A1 (de) * 1993-07-20 1995-01-26 Willi Jacobs Fräsbrecher
DE4431562A1 (de) * 1994-09-05 1996-03-07 Michael Steinbrecher Verfahren und Vorrichtung zum Aufbereiten von Grabensohlen für die Rohrverlegung
DE29510913U1 (de) * 1995-07-06 1995-09-28 Wagener, Helmut, 53577 Neustadt Vorrichtung zur Halterung eines Fräsmeißels
EP1186744A2 (fr) * 2000-09-08 2002-03-13 STEINBRECHER, Michael Porte-outil à changement rapide pour des outils sur tambour de coupe
DE10164804B4 (de) * 2000-12-20 2004-06-24 Kennametal Inc. Schneidwerkzeuganordnung
DE10106381A1 (de) * 2001-02-12 2002-09-12 Michael Steinbrecher Mit Werkzeugen bestückte Walze für mobile Arbeitsmaschinen
DE10205791C1 (de) * 2002-02-13 2003-04-30 Michael Steinbrecher Wechselhaltersystem für Werkzeuge
DE10350604A1 (de) 2003-10-30 2005-06-09 Michael Steinbrecher Schnellwechselhaltersystem
DE102005017760A1 (de) * 2005-04-18 2006-10-19 Michael Steinbrecher Schnellwechselhaltersystem
US20070114835A1 (en) * 2005-11-23 2007-05-24 Keystone Engineering & Manufacturing Corporation Flighting and tool holder
US20080164749A1 (en) * 2006-12-19 2008-07-10 Kennametal Inc. Overlapping Pedestals For Supporting A Block Secured To A Rotating Drum
DE202009001020U1 (de) * 2009-01-27 2009-04-02 Herrenknecht Ag Werkzeughaltersystem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106192704B (zh) * 2016-08-31 2019-08-27 徐工集团工程机械有限公司 转子组件及冷再生机

Also Published As

Publication number Publication date
DE102009052351A1 (de) 2011-05-12
WO2011054334A4 (fr) 2011-07-21

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