EP0207232A1 - Dispositif de fraisage pour une machine excavatrice - Google Patents

Dispositif de fraisage pour une machine excavatrice Download PDF

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Publication number
EP0207232A1
EP0207232A1 EP86104491A EP86104491A EP0207232A1 EP 0207232 A1 EP0207232 A1 EP 0207232A1 EP 86104491 A EP86104491 A EP 86104491A EP 86104491 A EP86104491 A EP 86104491A EP 0207232 A1 EP0207232 A1 EP 0207232A1
Authority
EP
European Patent Office
Prior art keywords
milling
wheel
tooth
teeth
bearing plate
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
EP86104491A
Other languages
German (de)
English (en)
Other versions
EP0207232B1 (fr
Inventor
Karlheinz Dr.-Ing. Bauer
Johann Ing. Grad. Haberer
Maximilian Michael Ing. Grad. Arzberger
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.)
Bauer Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Publication of EP0207232A1 publication Critical patent/EP0207232A1/fr
Application granted granted Critical
Publication of EP0207232B1 publication Critical patent/EP0207232B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines

Definitions

  • the invention relates to a milling device for a trench cutter for earthworks according to the preamble of the main claim.
  • Known trench wall cutters for earthworks are usually equipped with two cutting wheels, the cutting wheels having fixed teeth protruding in the radial direction on their circumference.
  • the teeth each form a plurality of toothed rings arranged at a distance from one another in the axial direction of the milling wheel. Since there are no teeth in the free distance between two adjacent sprockets, only the part on which the teeth act directly is machined by the milling cross-section that the milling wheels cover. The bottom sections hitting the gaps between two sprockets are not milled away, but must be pushed away from the milling wheel hub itself by the pressure exerted on the milling wheels.
  • the space located below the bearing plate cannot be machined with the known milling devices.
  • the floor area remaining there also requires increased pressure to drive the trench cutter downwards.
  • the invention has the object of providing a cutting device for a trench cutter of the type mentioned To create, which allows a complete and complete processing of the entire milling cross-section covered by the milling device with a simple and robust structure.
  • At least one of the milling teeth projecting in the radial direction is designed to be pivotable transversely to the circumferential direction of the milling wheel. This means that the area adjacent to a gear rim plane can also be machined by the swiveling milling tooth.
  • the swiveling arrangement of the milling tooth is necessary because the milling tooth, when it has been carried out through the space below the end shield, must be moved back into its folded position, since it has to avoid the end shield in the upper milling wheel area.
  • the device according to the invention is extremely simple and the swiveling movements from the folded state to the unfolded state and vice versa take place automatically while the Schiltzwandfräse is advanced. Because the pivotable milling tooth can only deflect in a predetermined direction, it is automatically pivoted into this unfolded position when the trench wall cutter is pressed down.
  • the pivotable milling tooth is arranged on a peripheral section of the milling wheel adjacent to the bearing plate and can be pivoted out in the direction of the bearing plate, so that it is in the swung-out position engages in the space below the end shield.
  • the milling tooth folds in automatically because the unfolded milling tooth is pressed into its folded position by a section of the bearing shield during its upward movement out of the space located below the end shield.
  • the swiveling milling tooth is aligned essentially parallel to the end shield and is moved in the circumferential direction at a distance from it during the milling process.
  • the milling tooth maintains the retracted position until it is swung out again during the downward movement under the pressure or the weight of the milling machine. Even before the swiveling milling tooth is exposed to pressure, the dimensions of the bearing plate are reduced to such an extent that the milling tooth can move unhindered in the direction of the space below the bearing plate.
  • a lever arm is fastened to the section of the swiveling milling tooth which is adjacent to the hub of the milling wheel, said lever arm having a bolt which is pivotably received in a bearing fastened to the hub of the milling wheel.
  • the axis of the bolt is aligned tangentially to the circumference of the cutting wheel.
  • the axis of the bolt is arranged in the axial direction of the cutting wheel at a distance from the central axis of the pivoting cutting tooth, the pivoting cutting tooth being arranged directly on the axial end portion of the peripheral edge of the hub of the cutting wheel.
  • a special device can be provided to ensure the pivoting out of the milling tooth that the lever arm has a stop on its area facing away from the axial end section of the hub of the milling wheel, which in the folded-in state of the pivotable Milling tooth abuts the hub of the milling wheel. This ensures that the milling tooth is pressed in the direction of the bearing plate when the trench wall cutter is lowered.
  • the swiveling milling tooth is preferably aligned vertically to the milling wheel axis in the folded position.
  • the swiveling milling tooth is aligned in the folded position in alignment with the axial end section of the hub of the milling wheel.
  • an inclined plane is provided in the area between the side of the milling tooth adjacent to the end shield and the stop of the lever arm. In the swung-out state of the milling tooth, the inclined plane lies snugly on the hub of the milling wheel, so that the force introduced during the milling process can be transmitted with a milling tooth fastened to the milling wheel with the full connection cross section.
  • the inclined plane When folded, the inclined plane forms an acute angle with the hub of the milling wheel.
  • the engagement width of the swiveling milling tooth below the end shield can be adapted to the requirements via the size of this acute angle. The larger the acute angle is selected, the further the swiveling milling tooth engages in the space below the end shield.
  • the swiveling milling tooth can be made longer than the other, fixed teeth of the milling wheel, so that it has the same radial extent in milling engagement as the rest , fixed milling teeth.
  • a particularly high degree of efficiency in the processing of the bottom area located below the end shield results when the cutting wheel has a ring of fixed cutting teeth and swiveling cutting teeth arranged in an alternating order in the circumferential direction over its entire peripheral region adjacent to the end shield.
  • both peripheral surfaces of the cutting wheels adjacent to the bearing plate are provided with cutting teeth according to the invention.
  • the space below the end shield can either be machined on both sides at the same time by the swivel-out milling teeth of the neighboring milling wheels or the milling wheels can be offset by a certain angle so that the swivel-out milling teeth of the adjacent milling wheels follow one another offset in the circumferential direction.
  • the milling wheel has a plurality of milling teeth which can be pivoted in the direction of the bearing plate and distributed in an alternating sequence to the fixed milling teeth. Furthermore, the milling wheel on the area adjacent to the bearing plate can be swiveled out in the direction of the bearing plate and distributed over the remaining circumferential area in an alternating sequence to the fixed milling teeth Have milling teeth pivotable in the direction opposite to the end shield.
  • the swiveling milling teeth distributed over the remaining circumferential area can also be arranged such that one of two swiveling milling teeth that follow one another in the circumferential direction can be swiveled in the direction of the end shield and the other in the opposite direction.
  • the milling teeth arranged on the peripheral region of the milling wheel adjacent to the bearing plate can be moved from the extended position into the folded position by the bearing plate.
  • the folding process is carried out by the milling tooth abutting against the bearing plate after passing through the space below the bearing plate, so that it is pressed into the pivoted-in position.
  • the circumferential section of the end shield located between the milling wheels is designed such that it converges outward in a V-shape. This significantly simplifies the process of folding in the milling tooth.
  • the pivotable milling teeth distributed over the remaining circumferential area of the milling wheel can be moved by a reamer into the folded-in position, which is attached to a gear plate arranged above the milling wheel and engages between the vertically aligned milling teeth.
  • Figure 1 shows an arrangement of two milling wheels 1 and 3 on both sides of a bearing plate 5 of a trench cutter.
  • the milling wheels 1 and 3 are rotatably mounted in the bearing plate 5, are equipped with fixed milling teeth 7 on their peripheral surface and have milling teeth 9 which can be pivoted in the direction of the bearing plate 5 on their peripheral sections adjacent to the bearing plate.
  • the swiveling milling teeth 9 are aligned essentially vertically to the milling wheel axis 11 in the same way as the stationary milling teeth 7.
  • the milling teeth 9 are shown in their pivoted-out position and simultaneously engage on both sides in the space 13 below the end shield 5.
  • each swiveling milling tooth 9 is pressed into the unfolded position in the same way by the weight of the milling machine.
  • the two opposite, pivotable milling teeth 9 are the adjacent milling wheels 1 and 3 formed approximately the same length as the fixed milling teeth 7.
  • the milling teeth 9 are longer than the milling teeth 7 so that the space located below the bearing plate 5 can be penetrated as completely as possible. After passing through the space 13 located below the bearing plate 5, the milling teeth 9 abut against the bearing plate 5, as a result of which they are pivoted back into the folded-in position.
  • the peripheral portion of the bearing plate 5, against which the milling teeth 9 abut is designed to converge outward in a V-shape. As a result of this configuration of the bearing plate 5, the swiveled-out milling teeth 9 are continuously pressed into the rest position.
  • FIG. 2 shows the preferred mounting of a swiveling milling tooth 9. If a force acts on the milling tooth 9 in the direction of the arrow 17, this is pivoted out in the direction of the arrow 19 as a result of the force application acting eccentrically to the bearing 21, so that the milling tooth comes into operational engagement.
  • a lever arm 25 is welded to the section which is adjacent to the hub 23 of the milling wheel 1 on the swiveling milling tooth 9.
  • the lever arm 25 has a pin 27 aligned tangentially to the milling wheel circumference, which is received in a bearing 21 fastened to the hub 23 of the milling wheel 1.
  • the axis of the bolt 27 is arranged at a distance from the central axis of the swiveling milling tooth 9, the swiveling milling tooth 9 being arranged on the axial end section of the hub 23 of the milling wheel 1.
  • the lever arm 25 has a stop 29 on its area facing away from the axial end section of the hub 23 of the milling wheel 1.
  • This stop 29 lies precisely in the position in which the swiveling milling tooth 9 is oriented approximately vertically against the hub 23 of the milling wheel 1.
  • the swiveling milling tooth 9 is arranged in alignment with the axial end section of the hub 23 of the milling wheel 1, so that the path to the milling engagement is as short as possible.
  • the lever 25 and the milling tooth 9 are chamfered in the manner of an inclined plane 31.
  • the inclined plane 31 bears against the hub 23 of the milling wheel 1.
  • the inclined plane 31 forms an acute angle ⁇ with the hub 23 of the milling tooth 1.
  • all milling teeth 9, which are arranged on the peripheral surfaces of the milling wheels 1 and 3, are designed to be pivotable in the direction of the bearing plate 5.
  • the swiveling milling teeth 9 are drawn in solid lines in FIG.
  • the fixed milling teeth 7, which are arranged in the circumferential direction in an alternating sequence to the swiveling milling teeth 9, are shown with dashed lines.
  • the milling teeth 9 can be moved into the retracted position by means of scrapers 33 which are fastened to a gear shield 35 and are each arranged between the milling teeth 9. With this arrangement, the clearers 33 are each installed between those planes in which the milling teeth 9 are arranged on the peripheral surface of the milling wheels 1 and 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Milling Processes (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP86104491A 1985-06-03 1986-04-02 Dispositif de fraisage pour une machine excavatrice Expired EP0207232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3519774 1985-06-03
DE19853519774 DE3519774A1 (de) 1985-06-03 1985-06-03 Fraesvorrichtung fuer eine schlitzwandfraese

Publications (2)

Publication Number Publication Date
EP0207232A1 true EP0207232A1 (fr) 1987-01-07
EP0207232B1 EP0207232B1 (fr) 1988-11-17

Family

ID=6272258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104491A Expired EP0207232B1 (fr) 1985-06-03 1986-04-02 Dispositif de fraisage pour une machine excavatrice

Country Status (4)

Country Link
US (1) US4718731A (fr)
EP (1) EP0207232B1 (fr)
JP (1) JPH0633611B2 (fr)
DE (2) DE3519774A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231784A1 (fr) * 1986-02-06 1987-08-12 Alfred Dr. Hackmack Appareil de terrassement comportant un dispositif à fraiser et un récipient
FR2602530A1 (fr) * 1986-08-07 1988-02-12 Soletanche Engin de fraisage pour creuser des tranchees dans le sol
EP0291027A1 (fr) * 1987-05-13 1988-11-17 Bauer Spezialtiefbau GmbH Dispositif d'enlèvement
EP0299871A1 (fr) * 1987-07-16 1989-01-18 Soletanche Engin de fraisage pour creuser des tranchées dans le sol
WO1989000631A1 (fr) * 1987-07-22 1989-01-26 Alfred Hackmack Pelle de derochage

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605028B1 (fr) * 1986-10-08 1988-12-09 Soletanche Engin de fraisage pour creuser des tranchees dans le sol.
DE3819525C1 (en) * 1988-06-08 1989-12-28 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen, De Apparatus for making an essentially vertical soil trench
DE3933168A1 (de) * 1988-10-14 1990-04-19 Bauer Spezialtiefbau Schlitzwandfraese
DE60206355D1 (de) * 2002-04-05 2006-02-09 Spie Fond S Cergy Pontoise Fräsrad und Schlitzwandfräse umfassend mindestens zwei Fräsräder
FR2862336B1 (fr) * 2003-11-18 2006-03-17 Cie Du Sol Machine de forage a outils rotatifs
DE10360910B3 (de) * 2003-12-23 2005-09-15 Bauer Maschinen Gmbh Klappzahn
ES2532477T3 (es) * 2012-07-10 2015-03-27 Bauer Maschinen Gmbh Rueda fresadora para una fresadora de zanjas
ITUA20161274A1 (it) * 2016-02-12 2017-08-12 Saverio Geoffrey Di Macchina escavatrice
GB2568092A (en) * 2017-11-06 2019-05-08 Ccmj Systems Ltd Improved cutting assembly
CN109989439B (zh) * 2019-05-13 2023-12-08 江苏徐工工程机械研究院有限公司 摆齿机构、铣轮组件及用于连续墙施工的铣槽机
CN110158692B (zh) * 2019-05-23 2024-03-01 江苏徐工工程机械研究院有限公司 一种铣轮
CN110158693B (zh) * 2019-05-23 2024-03-01 江苏徐工工程机械研究院有限公司 一种铣削刀齿组件及双轮铣铣轮
CN110777866B (zh) * 2019-12-05 2024-04-30 江苏徐工工程机械研究院有限公司 建筑施工用铣槽机的铣轮组件和铣槽机
DE102019135781A1 (de) * 2019-12-23 2021-06-24 Marcus Burg Klappzahn für ein Fräsrad
CN114749879A (zh) * 2022-04-29 2022-07-15 中国铁建重工集团股份有限公司 一种掘进机主轴承齿圈的加工方法及所得齿圈

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362425A1 (de) * 1972-12-14 1975-01-30 Hydrosol Vorrichtung zum herstellen von bohrungen im erdreich
AT365030B (de) * 1979-12-21 1981-12-10 Bourgela Roger Vorrichtung zum ziehen von rinnen im erdreich
DE3049316A1 (de) * 1980-12-29 1982-07-29 Alfred 7834 Herbolzheim Wehrle Bodenfraese zum ausheben von graeben, insbes. von strassengraeben o.dgl.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2752142A (en) * 1951-09-25 1956-06-26 Joy Mfg Co Disintegrating head mechanism for a mining apparatus
US3439758A (en) * 1967-01-09 1969-04-22 Peterson Eng Co Inc Pivoted tooth-holder for tunneling machine
US3857610A (en) * 1973-11-23 1974-12-31 Jarva Inc Gage scraper for birotational tunneling machines
SU467181A1 (ru) * 1973-12-26 1975-04-15 Государственный Институт По Проектированию И Конструированию Машин Для Горнорудной Промышленности Исполнительный орган горного комбайна
FR2349688A1 (fr) * 1976-04-30 1977-11-25 Fondamat Sarl Organe rotatif, notamment pour le creusement du sol
US4172616A (en) * 1978-01-31 1979-10-30 Coaltex, Inc. Cutting head with self-contained power source
JPS557338A (en) * 1978-06-29 1980-01-19 Miyoshi Suzue Rotary type ditch-digger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2362425A1 (de) * 1972-12-14 1975-01-30 Hydrosol Vorrichtung zum herstellen von bohrungen im erdreich
AT365030B (de) * 1979-12-21 1981-12-10 Bourgela Roger Vorrichtung zum ziehen von rinnen im erdreich
DE3049316A1 (de) * 1980-12-29 1982-07-29 Alfred 7834 Herbolzheim Wehrle Bodenfraese zum ausheben von graeben, insbes. von strassengraeben o.dgl.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231784A1 (fr) * 1986-02-06 1987-08-12 Alfred Dr. Hackmack Appareil de terrassement comportant un dispositif à fraiser et un récipient
FR2602530A1 (fr) * 1986-08-07 1988-02-12 Soletanche Engin de fraisage pour creuser des tranchees dans le sol
EP0258122A1 (fr) * 1986-08-07 1988-03-02 SOLETANCHE Société Anonyme dite: Engin de fraisage pour creuser des tranchées dans le sol
US4800967A (en) * 1986-08-07 1989-01-31 Soletanche Drilling machine for digging trenches in the ground
EP0291027A1 (fr) * 1987-05-13 1988-11-17 Bauer Spezialtiefbau GmbH Dispositif d'enlèvement
EP0299871A1 (fr) * 1987-07-16 1989-01-18 Soletanche Engin de fraisage pour creuser des tranchées dans le sol
FR2618172A1 (fr) * 1987-07-16 1989-01-20 Soletanche Engin de fraisage pour creuser des tranchees dans le sol.
US4844549A (en) * 1987-07-16 1989-07-04 Soletanche Milling machine for digging trenches in the earth
WO1989000631A1 (fr) * 1987-07-22 1989-01-26 Alfred Hackmack Pelle de derochage

Also Published As

Publication number Publication date
EP0207232B1 (fr) 1988-11-17
DE3519774A1 (de) 1986-12-04
JPS61277724A (ja) 1986-12-08
JPH0633611B2 (ja) 1994-05-02
US4718731A (en) 1988-01-12
DE3661208D1 (en) 1988-12-22

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