EP0291027A1 - Dispositif d'enlèvement - Google Patents

Dispositif d'enlèvement Download PDF

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Publication number
EP0291027A1
EP0291027A1 EP88107531A EP88107531A EP0291027A1 EP 0291027 A1 EP0291027 A1 EP 0291027A1 EP 88107531 A EP88107531 A EP 88107531A EP 88107531 A EP88107531 A EP 88107531A EP 0291027 A1 EP0291027 A1 EP 0291027A1
Authority
EP
European Patent Office
Prior art keywords
clearing
control
folding
clearing device
hub
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
EP88107531A
Other languages
German (de)
English (en)
Other versions
EP0291027B1 (fr
Inventor
Karlheinz Dr.-Ing. Bauer
Maximilian Ing-Grad. Arzberger
Johann Ing. Grad Haberer
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
Priority to AT88107531T priority Critical patent/ATE68030T1/de
Publication of EP0291027A1 publication Critical patent/EP0291027A1/fr
Application granted granted Critical
Publication of EP0291027B1 publication Critical patent/EP0291027B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02F9/2808—Teeth
    • 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 clearing device with a clearing wheel, with a bearing plate extending into the region of the outer periphery of the clearing wheel hub and with folding teeth which are pivotally articulated distributed over the circumference on the edge of the clearing wheel hub facing the end plate.
  • the teeth in such broaching devices protrude in the radial direction and often form a plurality of toothed rings arranged at a distance from the hub in the axial direction of the milling wheel.
  • the erosion and loosening of mountains and soil takes place in that the clearing wheels are moved transversely to their axis, the soil being milled off in a region corresponding to the width of the clearing wheel to form a trench or slot.
  • These devices can therefore also be referred to as trench cutters.
  • folding teeth are arranged along the adjacent edge of the clearing wheel hub, which should engage in the unfolded position in the soil in front of the clearing plate.
  • the fact that the folding teeth can only dodge in a predetermined direction can be achieved that they are automatically pivoted into their working position during the advancement of the clearing wheel due to the earth pressure.
  • the invention has for its object to provide a broaching device of the type mentioned, in which evasion of the folding teeth is prevented.
  • folding teeth are designed with two arms with a rear control arm and an outwardly directed milling tooth, and in that there is a wedge gear between the control arm of each folding tooth and the end shield in order to forcibly bring the folding teeth into the pivoted-out position .
  • the invention therefore makes use of the idea of applying and deflecting the folding teeth independently of the back pressure of the soil by means of a positive positive control.
  • the invention therefore has the advantage that an optimal feed can be achieved since the soil or mountains in front of the end shield is safely cleared away.
  • the wedge gear enables a smooth guidance of the folding teeth, whereby the course of the folding tooth deflection can be determined by the incline of the wedge surfaces. In other words, this fact could also be referred to as cam control.
  • the wedge gear comprises a circumferential first wedge surface on the control arm and a control bar arranged along a circular sector, coaxial with the clearing wheel on the end shield, which engages with the wedge surface when the associated folding tooth is at a Rotary movement of the clearing wheel is moved past the control bar where the length of the control bar determines the duration of the deflection.
  • control arm can also be advantageous for the control arm to be provided with a wedge surface that runs in and out in the circumferential direction.
  • wedge gear has a wedge surface which extends radially on the control arm and a control strip arranged on the end shield for engagement with the wedge surface, and that the control strip is arranged on a track with a different radius, so that it is at one Circular movement of the folding tooth or the clearing wheel is guided along the wedge surface in the radial direction.
  • control arm is arranged at an angle to the milling tooth.
  • control arm is guided through an opening in the hub into the interior of the hub and is in engagement with the control strip on the end face of the hub.
  • the edge of the hub opening is particularly expedient to provide the edge of the hub opening as a rear stop for the control arm.
  • This stop which must absorb the feed pressure acting on the milling tooth, can be provided in the simplest way without additional precautions.
  • the arrangement is particularly robust due to the basically stable design of the hub.
  • Protection against penetrating soil is achieved in that the bearings of the folding teeth and the area between the hub edge and the end shield are protected with a cover.
  • the cover consists of strips which are arranged over the entire circumference of the hubs.
  • Fig. 1 shows schematically a trench cutter with two pairs of similar rotating pairs of clearing wheels 2,3 and 23,24 on a bearing plate 1, as illustrated in Fig. 2.
  • the bearing plate 1 is suspended from a swivel arm 26 of a conventional crane 27.
  • the bearing plate 1 can by an inclination of the pivot arm 26 in hori zontal direction and by means of a cable suspension 28 in the vertical direction.
  • the trench wall cutter is driven by means of a conventional hydraulic system, which is part of the crane 27.
  • a trench is produced by the clearing wheels 2, 3, 23, 24 cutting or breaking the earth or the rock and transporting it to the center, where, in a conventional manner, suction is carried out with supporting liquid which is provided and suctioned off via hose lines 25.
  • the support fluid and the soil are separated in a regeneration system (not shown). Then the support fluid is pumped back and is available again in the slot.
  • FIG. 2 illustrates one of the two pairs of clearing wheels 2, 3 which are rotatably arranged on the end shield 1.
  • the figure shows the clearing wheels 2, 3 in a view transverse to the axis of rotation of the clearing wheels 2, 3.
  • the clearing device is moved in the direction of arrow 5 while rotating the clearing wheels 2, 3.
  • clearing teeth 6, which protrude radially from the hubs 4 of the two clearing wheels 2, 3 and are distributed over the entire hub surface, engage in the ground to form a trench (not shown).
  • the clearing teeth 6 are designed as folding teeth 7, which are controlled with a positive control shown in FIG. 3 in such a way that they assume their pivoted-down position in front of and below the bearing plate.
  • the folding teeth 7 act on the soil lying between the two clearing wheels 2, 3 and prevent soil from standing in front of the end shield.
  • FIG. 2 illustrates in a cross section the control of the folding teeth 7 on the basis of a section which is designated III in FIG. 2.
  • the folding tooth 7 shown here is held with a pivot axis 8 in a bearing eye 9 arranged on the hub 4.
  • the pivot axis 8 is located laterally next to the longitudinal axis of the folding tooth 7.
  • the folding tooth 7 is formed with two arms, one arm by a milling tooth 10 projecting freely outwards and the other arm, which is referred to below as control arm 11, by a rear arm , Extension of the milling tooth 10 extending beyond the pivot axis 8 is formed.
  • the control arm 11 is guided through an opening 12 into the interior of the hub 4.
  • An edge 20 of the opening 12 serves as a rear stop, by which the maximum inclination of the folding tooth 7 is determined, which is illustrated in FIG. 2.
  • the storage of the folding tooth 7 and the opening 12 are protected from the outside by a housing 21 against penetrating soil. It consists of a first bar 13 arranged on the hub between the hub edge and the control arm 11, in particular for covering the opening 12, and of a second bar 14 with an L-shaped cross section, which is essentially in the radial direction between the hub 4 and the Pivot axis 8 extends to prevent soil from penetrating into the bearing eye 9.
  • the control arm 11 is acted upon from the front side of the clearing wheel 2 by a control bar 15 arranged on the end shield 1, which extends along a circular sector. Due to a beveled inlet and outlet, which are not visible in the figure due to the selected form of representation, a wedge gear is formed together with a counter surface 16 on the control arm 11, which causes the folding tooth 7 to pivot away as soon as the counter surface 16 rotates the hub 4 comes into contact with the control bar 15. As long as the counter surface 16 slides along the control bar, this deflection is maintained. A predetermined pivoting movement of the folding tooth 7 can also be achieved by a cam-like course of the control bar 15. Instead of the inlet and outlet at the wheel bar 15, it can also be appropriate to provide the counter surface 16 with a wedge surface that runs in and out in the circumferential direction of the hub 4 in order to achieve a gradual transition between the two end positions of the folding tooth 7.
  • Fig. 3 illustrates a position of the folding tooth 7, in which it has its maximum inclination, in which the folding tooth 7 is brought by external pressure on the milling tooth 10, for example by the pressure of the soil. From the space between the control bar 15 and the counter surface 16 it can be seen that in the example shown here, the control bar 15 is only used to initiate and maintain a minimum slope and that a further slope due to external pressure depending on the location of the edge 20 also is possible.
  • the control arm 11 also has a region 22 which lies opposite the free end of the first line 13.
  • the area 22 is shaped in the radial direction in such a way that, with each position of the folding tooth 7, the distance 17, which represents the minimum possible distance between the area 22 and the free end of the first strip 13, without touching it, essentially is kept constant to ensure that the opening 12 is covered. This is achieved by an eccentric arrangement of the folding tooth 7 on the pivot axis 8 by means of a bearing sleeve 18. If the folding tooth 7 is rotated clockwise, for example, from the position shown, it also performs a tangential movement due to its eccentric arrangement, so that the area 22 below the free end of the first bar 13 is moved.
  • Fig. 4 shows that the control bar 15 occupies a semicircle at the lower end of the end shield.
  • the semicircle is coaxial to the axis (not shown) of the clearing wheel, which is not visible in this illustration, and perpendicular to the character plane is mounted in the circular opening 19 in the bearing plate 1. If one assumes a clockwise rotation of the relevant clearing wheel, the mating surfaces 16 of the folding teeth 7 come into engagement in their horizontal position with a wedge-like inlet area 22 of the control bar 15 in order to bring about a gradual transition between their straight outward position and the folded-down position. While the folding teeth pass the semicircle formed by the control bar 15, they are held in this position. The pivoted-down position is maintained until a tapering outlet area 29 of the control bar 15 is reached.
  • the folding teeth 7 are brought into their straight, pivoted-back position when the free ends of the clearing teeth 6 come into engagement with a sliding surface 31 which has a further, beveled wedge-like inlet area 30 and a further beveled outlet area 32.
  • the wedge surface 31 is arranged coaxially to the axis of the clearing wheels. Since it interacts with the free ends of the clearing teeth 6, their radius is larger than the radius of the control bar 15.
  • the sliding surface 31 runs on the surface of the end shield 1 from its front end to its rear end in the region of the circular path traversed by the ends of the clearing teeth .
  • the counter surface 16 of the folding tooth 7 may also be appropriate to provide the counter surface 16 of the folding tooth 7 with a circumferential direction of the hub 4 of the wedge surface entering and exiting, in order to ensure a gradual transition between the two end positions of the folding tooth to reach.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Harvester Elements (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP88107531A 1987-05-13 1988-05-10 Dispositif d'enlèvement Expired - Lifetime EP0291027B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107531T ATE68030T1 (de) 1987-05-13 1988-05-10 Raeumvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715977 DE3715977A1 (de) 1987-05-13 1987-05-13 Raeumvorrichtung
DE3715977 1987-05-13

Publications (2)

Publication Number Publication Date
EP0291027A1 true EP0291027A1 (fr) 1988-11-17
EP0291027B1 EP0291027B1 (fr) 1991-10-02

Family

ID=6327453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107531A Expired - Lifetime EP0291027B1 (fr) 1987-05-13 1988-05-10 Dispositif d'enlèvement

Country Status (6)

Country Link
US (1) US4834197A (fr)
EP (1) EP0291027B1 (fr)
JP (1) JPH0660501B2 (fr)
AT (1) ATE68030T1 (fr)
DE (2) DE3715977A1 (fr)
ES (1) ES2026965T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312089A2 (fr) * 1987-10-15 1989-04-19 Mitsubishi Petrochemical Co., Ltd. Méthode de préparation de L-thréonine
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
EP1548192A1 (fr) * 2003-12-23 2005-06-29 BAUER Maschinen GmbH Dent rabattable
EP2623677A1 (fr) * 2012-01-31 2013-08-07 Bauer Spezialtiefbau GmbH Procédé et agencement destinés à la fabrication d'un élément de paroi moulée
EP4375423A1 (fr) * 2022-11-28 2024-05-29 Liebherr-Werk Nenzing GmbH Fraise pour parois moulées

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0456692B1 (fr) * 1989-01-25 1995-10-18 Foundation Technology Limited Excavateur
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
DE3926976C2 (de) * 1989-08-16 1995-02-02 Hochtief Ag Hoch Tiefbauten Vorrichtung zum Einbringen eines im wesentlichen vertikalen Bodenschlitzes
GB2252576B (en) * 1991-02-06 1994-07-27 Anderson Group Plc Mining machine
DE29716938U1 (de) * 1997-09-20 1999-01-28 Zeilinger, Wolfgang, Dipl.-Ing., 90411 Nürnberg Räumvorrichtung für Bodenschlitze
FR2805551B1 (fr) * 2000-02-29 2002-05-17 Spie Fond S Outil pour creuser des tranchees dans le sol et engin tel qu'une excavatrice a fraise(s) comprenant un tel outil
FR2805552B1 (fr) * 2000-02-29 2002-07-05 Spie Fond S Outil pour creuser des tranchees dans le sol et engin tel qu'une excavatrice a fraise(s) comprenant un tel outil
US6857706B2 (en) * 2001-12-10 2005-02-22 Placer Dome Technical Services Limited Mining method for steeply dipping ore bodies
DE60206355D1 (de) * 2002-04-05 2006-02-09 Spie Fond S Cergy Pontoise Fräsrad und Schlitzwandfräse umfassend mindestens zwei Fräsräder
US7695071B2 (en) * 2002-10-15 2010-04-13 Minister Of Natural Resources Automated excavation machine
DE10308539B3 (de) * 2003-02-27 2004-06-03 Bauer Maschinen Gmbh Fräsvorrichtung zum Fräsen von Schlitzen im Boden
ATE427450T1 (de) 2003-06-27 2009-04-15 Alstom Technology Ltd Befestigungsvorrichtung eines maschinenfusses einer maschine und verfahren zur befestigung desselben
WO2005106137A2 (fr) * 2004-04-23 2005-11-10 Placer Dome Technical Services Limited Excavatrice et procede d'excavation
PL1630298T3 (pl) * 2004-08-23 2008-05-30 Bauer Maschinen Gmbh Sposób i urządzenie frezarskie do kształtowania ściany szczeliny w ziemi
CN105625439B (zh) * 2014-10-28 2018-09-04 徐工集团工程机械股份有限公司 带有铰接式摆动齿的铣轮及铣槽机
CN106717215B (zh) * 2016-11-16 2023-05-16 上海金泰工程机械有限公司 双轮铣的中心土削除刀具
DE202019100319U1 (de) * 2019-01-21 2020-04-22 Liebherr-Werk Nenzing Gmbh Schlitzwandfräse
DE102019135781A1 (de) * 2019-12-23 2021-06-24 Marcus Burg Klappzahn für ein Fräsrad
EP4311881A1 (fr) 2022-07-27 2024-01-31 BAUER Maschinen GmbH Roue de fraisage pour une fraise pour rideaux souterrains et procédé de transformation d'une roue de fraisage
EP4311882B1 (fr) 2022-07-28 2024-08-28 BAUER Maschinen GmbH Fraise pour parois moulées et procédé de formation d'une fente fraisée dans le sol

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830708C (de) * 1949-03-25 1952-02-07 Otto Schulze Vorrichtung zum direkten seitlichen Abwurf der von Grabwerkzeugen geloesten und gefoerderten Bodenmassen
FR1199949A (fr) * 1957-09-26 1959-12-17 Eickhoff Geb Cylindre de havage de longueur réglable, utilisable dans les mines
EP0207232A1 (fr) * 1985-06-03 1987-01-07 Bauer Spezialtiefbau GmbH Dispositif de fraisage pour une machine excavatrice

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US3279856A (en) * 1963-11-18 1966-10-18 Westinghouse Air Brake Co Core breaker for ripper type miner
US3439758A (en) * 1967-01-09 1969-04-22 Peterson Eng Co Inc Pivoted tooth-holder for tunneling machine
DE2211271B1 (de) * 1972-03-09 1972-11-30 Salzgitter Maschinen Ag, 3327 Salzgitter-Bad Schneidwerkzeug für eine als Teilschnittmaschine ausgebildete Vortriebsoder Gewinnungsmaschine
ES420924A1 (es) * 1972-12-14 1976-04-01 Hydrosol Dispositivo de perforacion.
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
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FR2601708B1 (fr) * 1986-07-15 1989-10-27 Soletanche Engin pour creuser des tranchees dans le sol a l'aide de fraises

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE830708C (de) * 1949-03-25 1952-02-07 Otto Schulze Vorrichtung zum direkten seitlichen Abwurf der von Grabwerkzeugen geloesten und gefoerderten Bodenmassen
FR1199949A (fr) * 1957-09-26 1959-12-17 Eickhoff Geb Cylindre de havage de longueur réglable, utilisable dans les mines
EP0207232A1 (fr) * 1985-06-03 1987-01-07 Bauer Spezialtiefbau GmbH Dispositif de fraisage pour une machine excavatrice

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Sektion Mechanik, Januar 1985, Zusammenfassung Nr. 310795 Q/49, Derwent Publications Ltd., London, GB; & SU-A-1 086 152 (MOSC REGION COAL IN) 15.04.1984 *
SOVIET INVENTIONS ILLUSTRATED, Sektion Mechanik, Woche 8407, März 1984, Zusammenfassung Nr. 041809 Q/42, Derwent Publications Ltd., London, GB; & SU-A-1 010 217 (GORKI POLY) 07.04.1983 *
SOVIET INVENTIONS ILLUSTRATED, Sektion Mechanik, Woche 8505, März 1985, Zusammenfassung Nr. 029977 Q/49, Derwent Publications Ltd., London, GB; & SU-A-1 097 787 (DON POLY) 15.06.1984 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0312089A2 (fr) * 1987-10-15 1989-04-19 Mitsubishi Petrochemical Co., Ltd. Méthode de préparation de L-thréonine
EP0312089B1 (fr) * 1987-10-15 1994-03-02 Mitsubishi Petrochemical Co., Ltd. Méthode de préparation de L-thréonine
US5035071A (en) * 1988-10-14 1991-07-30 Bauer Spezialtiefbau Gmbh Trench wall cutter
EP1548192A1 (fr) * 2003-12-23 2005-06-29 BAUER Maschinen GmbH Dent rabattable
US7278228B2 (en) 2003-12-23 2007-10-09 Bauer Maschinen Gmbh Hinged tooth
EP2623677A1 (fr) * 2012-01-31 2013-08-07 Bauer Spezialtiefbau GmbH Procédé et agencement destinés à la fabrication d'un élément de paroi moulée
US8864422B2 (en) 2012-01-31 2014-10-21 Bauer Spezialtiefbau Gmbh Method and arrangement for producing a trench wall element
EP4375423A1 (fr) * 2022-11-28 2024-05-29 Liebherr-Werk Nenzing GmbH Fraise pour parois moulées

Also Published As

Publication number Publication date
JPH0660501B2 (ja) 1994-08-10
DE3715977C2 (fr) 1990-11-22
ES2026965T3 (es) 1992-05-16
DE3715977A1 (de) 1988-12-01
DE3865235D1 (de) 1991-11-07
JPS63308123A (ja) 1988-12-15
US4834197A (en) 1989-05-30
ATE68030T1 (de) 1991-10-15
EP0291027B1 (fr) 1991-10-02

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