WO2000075488A1 - Tete d'excavation de roches pour montage sur bras d'excavateur - Google Patents

Tete d'excavation de roches pour montage sur bras d'excavateur Download PDF

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Publication number
WO2000075488A1
WO2000075488A1 PCT/AT2000/000159 AT0000159W WO0075488A1 WO 2000075488 A1 WO2000075488 A1 WO 2000075488A1 AT 0000159 W AT0000159 W AT 0000159W WO 0075488 A1 WO0075488 A1 WO 0075488A1
Authority
WO
WIPO (PCT)
Prior art keywords
gear
cutting heads
bevel
bevel gear
motor
Prior art date
Application number
PCT/AT2000/000159
Other languages
German (de)
English (en)
Inventor
Peter Kogler
Ernst Hammerlindl
Original Assignee
Voest-Alpine Bergtechnik Gesellschaft M.B.H.
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 Voest-Alpine Bergtechnik Gesellschaft M.B.H. filed Critical Voest-Alpine Bergtechnik Gesellschaft M.B.H.
Priority to EP00940006A priority Critical patent/EP1183440B1/fr
Priority to AT00940006T priority patent/ATE273442T1/de
Priority to DE50007392T priority patent/DE50007392D1/de
Priority to AU55090/00A priority patent/AU5509000A/en
Publication of WO2000075488A1 publication Critical patent/WO2000075488A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1086—Drives or transmissions specially adapted therefor
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • E21D9/102—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis
    • E21D9/1026—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom by a longitudinally extending boom being pivotable about a vertical and a transverse axis the tool-carrier being rotated about a transverse axis

Definitions

  • the invention relates to a rock head for attachment to implement support arms, such as e.g. Excavator arms, with a hydraulic motor and a gear for driving interchangeable milling drums or discs or cutting heads, whereby cutting heads with different diameters can be attached and lubricant from a lubricant sump is fed to the gear in any orientation of the rock cutting heads.
  • implement support arms such as e.g. Excavator arms
  • a rock milling head of the type mentioned in the introduction can be found, for example, in EP 841 467 AI.
  • a hydraulic motor or an electric motor can optionally be flanged to the side of the support arm, the drive to the output shafts for the cutting heads being effected via an idler gear in the form of a spur gear.
  • the middle drive spur gear or intermediate gear must be dimensioned correspondingly large so that there is sufficient space between the free end of the excavator arm and the cutting head.
  • this intermediate spur gear Since cutting heads of different sizes require different input and output torques, this intermediate spur gear must not only have a correspondingly large diameter in order to enable the mounting of larger cutting heads, but also have a minimum width in order to be able to transmit the input and output torques.
  • the intermediate spur gear must therefore be dimensioned for the maximum moments to be transmitted in the tooth width, the intermediate gear in principle having no influence on the gear ratio. The increased dimensioning is particularly necessary in view of the double tooth load.
  • Excavator mounting kits are used, deviating from the conditions, such as are present in cutting machines, for example, over a relatively large vertical swivel angle range of approximately 180 °, and such a swivel angle now requires that reliable lubrication is present in every position.
  • US Pat. No. 5,478,139 shows a further embodiment of an excavator attachment kit, in particular the relatively large pivoting angle that is to be coated with such attachment kits is shown.
  • the cutting heads are driven by a chain drive to which two hydraulic motors are coupled. Again, a relatively large volume has to be supplied with lubricant, so that perfect lubrication by spraying in any position of the cantilever arm is not easily guaranteed.
  • the configuration of the excavator attachment kit described in US Pat. No. 5,478,139 does not allow the replacement of cutting heads by correspondingly larger cutting heads if the drive is not to be overloaded.
  • the invention now aims to provide a rock head which, even when using cutting heads with different diameters, allows reliable lubrication in any orientation and can also be used with slim and narrow cantilever arms.
  • the invention further aims to reliably provide the required moments for different diameters of cutting heads to the output shafts for the cutting heads in such a rock head with a correspondingly narrow design and high operational reliability of the lubrication, with a conversion for larger or smaller cutting heads, the largest possible number of components can continue to be used unchanged and therefore only a small proportion of components need to be replaced.
  • the training according to the invention essentially consists in the drive comprising a hydraulic motor arranged in the support arm and a bevel gear stage with a bevel pinion with an axis parallel or coaxial to the axis of the excavator arm and a bevel gear coaxial with the drive axis of the cutting heads, and in that A reduction gear is optionally arranged between the drive motor and bevel pinion or between bevel gear and output shaft for the cutting heads.
  • the bevel gear stage can be taken over essentially unchanged for different sizes of the cutting arms, with the appropriate choice of the arrangement of the reduction gear the bevel pinion and the bevel gear in both cases with unchanged dimensioning are able to provide the output shaft with the required output torque.
  • the core housing with the bevel gear stage can still be used unchanged and therefore the connection conditions to the boom of the excavator remain essentially the same for different cutting heads.
  • the space which must be lubricated by the sump lubrication or by spray or spray oil can be significantly reduced and reliable lubrication of all critical points can be ensured, while at the same time a particularly small and narrow cantilever arm can be used.
  • the design according to the invention is advantageously made such that the reduction gear is designed as a planetary gear or epicyclic gear.
  • a planetary gear, epicyclic gear or spur gear can be interposed in a particularly space-saving manner at the required point, such a planetary gear in the case of the arrangement between the bevel gear and the output shaft for the cutting heads can be integrated into the housing for the bevel gear stage and therefore also lubricated safely can be.
  • the invention is so made that the reduction gear for cutting heads with a smaller diameter is arranged between the motor and bevel pinion and for cutting heads with a larger diameter between bevel gear and output shaft for the cutting heads.
  • the drive torques for cutting heads with a larger diameter are safely available with the same dimensions of bevel pinion and bevel gear, since in this case the bevel pinion rotates at a correspondingly higher speed and the speed is only reduced by the reduction gear after the bevel gear . It can thus be found with small-sized bevel pinions and bevel gears, and conversely, if smaller cutting heads are used, the rotational speed of the bevel pinion can already be selected to be lower, since in this case only lower moments have to be transmitted.
  • the design is such that the motor shaft of the hydraulic motor is arranged axially parallel or coaxially to the axis of the bevel pinion, with a planetary gear arranged in the carrier arm advantageously having coaxial drive and output shafts.
  • the design of the planetary gear for cutting heads of larger diameters can be made in a simple manner that a planetary gear connected downstream of the bevel gear has a planet gear carrier rotatably connected to the output shaft for the cutting heads and that the bevel gear is rotatably coupled to a sun gear designed as a sleeve or bushing for the planet gears, the bevel gear, sun gear and the axis of the output shaft being arranged coaxially, whereby Such training ensures the safe lubrication of the planetary gear inside the housing for the bevel gear stage.
  • the bevel pinion itself can in the case of the design according to the invention in any case be adequately lubricated by spray oil which is expelled from the toothing of the bevel gear stage, with a complete seal advantageously being provided towards the cantilever arm.
  • the design is advantageously made such that the bevel pinion is sealingly mounted in the support arm on the side facing the motor.
  • the pinion facing the bevel gear can recently be stored near the tooth engagement, in this area, in turn, adequate lubrication of the bearing being ensured by spray oil.
  • the bevel pinion bearing facing the motor is equipped with grease lubrication or dry lubrication and the bearing facing away from the motor is lubricated by spray oil from the housing containing the bevel gear stage, so that one with a low lubricant volume in the area of the bevel gear stage with any orientation of the excavator arm safe lubrication is guaranteed.
  • FIG. 1 shows a side view of the rock head
  • FIG. 2 shows a view in the direction of arrow II-II schematically, partly in section through a first embodiment of the cutting heads
  • FIG. 3 shows an analog section, like FIG. 2, when used accordingly larger cutting heads.
  • Fig. 1 the end of the excavator arm is designated 1.
  • the cutting head is indicated schematically by the contour 2, the bearing cover being indicated schematically by 3.
  • the rock head together with the connection unit is connected to the excavator arm via bearing eyes 4.
  • a reduction gear in the form of a planetary gear 6 is flanged to the hydraulic motor, the output shaft 7 of which meshes with a bevel pinion 8.
  • the bevel pinion 8 is mounted in the front end 9 of the cantilever arm or excavator arm, the inner bearing 10 facing the motor being designed as a grease-lubricated bearing which is sealed by seals 11 from the bearing housing 12 of the bevel gear stage.
  • the bearing 13 adjacent to the bearing housing 12 of the bevel gear stage itself is in turn lubricated from the lubricant sump accommodated in the bearing housing 12 and need not be designed to be sealing.
  • the bevel pinion 8 meshes with a bevel gear 14 which, in the embodiment according to FIG. 2, is non-rotatably connected to the output shaft 15 for the cutting heads 2.
  • the output shaft 15 is mounted outside the bevel gear stage and is indicated schematically by 16 and 17.
  • FIG. 2 the outline of correspondingly larger cutting heads is shown with 2 ', for which the drive and the bearing are then modified in accordance with FIG. 3.
  • the axis of rotation of the hydraulic motor 5 is indicated schematically at 18 and is coaxial with the output shaft 7 of the planetary gear 6 and the axis of the bevel pinion 8.
  • the hydraulic motor 5 is now connected directly to the bevel pinion 8 via the drive spur gear 19, the bevel pinion 8 in turn being stored unchanged with respect to the configuration when using smaller cutting heads.
  • the cutting head contour of the correspondingly larger cutting head is again indicated by 2 ', the bevel gear 14 no longer rotatingly being connected to the output shaft 15 for the cutting heads, but rather meshing non-rotatably via a toothing with a sleeve-shaped sun gear 20.
  • the planet carrier 21 is rotatably connected to the output shaft 15 for the cutting heads and the planet gears 22 are in engagement with the sun gear 20.
  • the bevel pinion 8 and the bevel gear 14 can thus be used unchanged, so that the respective Seeing parts are reduced to a minimum and at the same time the required drive torque is reliably provided with a correspondingly narrow construction and thus with a correspondingly small free distance between the two cutting heads 2 and 2 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Gear Transmission (AREA)

Abstract

L'invention concerne une tête d'excavation de roches destinée à être montée sur des bras porteurs d'une machine de chantier, par exemple, sur des bras d'excavateur (1), comprenant un moteur hydraulique (5) et une transmission pour la commande de tambours ou de disques de fraisage interchangeables, éventuellement de têtes pour les boues (2). Des têtes pour les boues (2, 2'), de diamètres différents, doivent pouvoir être montées, au choix, cependant que le lubrifiant est amené à la transmission, en provenance d'un réservoir, dans une orientation quelconque des têtes pour les roches et les boues. L'invention est caractérisée en ce que la commande comprend un moteur hydraulique (5) disposé dans le bras porteur (1) et un étage de pignons coniques présentant un pignon conique (8) ayant un axe sensiblement parallèle à l'axe du bras excavateur (1), ou un axe coaxial (18), et une roue conique coaxiale (14) pour l'axe de commande des têtes pour les boues (2). Un train réducteur peut être prévu, au choix, entre le moteur de commande (5) et le pignon conique (8), ou entre la roue conique (14) et l'arbre de sortie (15) pour les têtes pour les boues (2).
PCT/AT2000/000159 1999-06-08 2000-06-06 Tete d'excavation de roches pour montage sur bras d'excavateur WO2000075488A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP00940006A EP1183440B1 (fr) 1999-06-08 2000-06-06 Tete d'excavation de roches pour montage sur bras d'excavateur
AT00940006T ATE273442T1 (de) 1999-06-08 2000-06-06 Gesteinskopf für den anbau an baggerarmen
DE50007392T DE50007392D1 (de) 1999-06-08 2000-06-06 Gesteinskopf für den anbau an baggerarmen
AU55090/00A AU5509000A (en) 1999-06-08 2000-06-08 Stone head to be mounted on excavator arms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1016/99 1999-06-08
AT101699 1999-06-08

Publications (1)

Publication Number Publication Date
WO2000075488A1 true WO2000075488A1 (fr) 2000-12-14

Family

ID=3504971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2000/000159 WO2000075488A1 (fr) 1999-06-08 2000-06-06 Tete d'excavation de roches pour montage sur bras d'excavateur

Country Status (4)

Country Link
EP (1) EP1183440B1 (fr)
AU (1) AU5509000A (fr)
DE (1) DE50007392D1 (fr)
WO (1) WO2000075488A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033826A1 (fr) * 2001-10-16 2003-04-24 Simex Engineering Srl Fraiseuse pour pelles hydrauliques
US10273803B2 (en) 2016-12-15 2019-04-30 Caterpillar Global Mining Europe Gmbh Implement system for machine and operating method therefor
EP3527723A1 (fr) 2018-02-20 2019-08-21 BAUER Maschinen GmbH Procédé de traitement d'un sol et tête de fraisage correspondante

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162104A (en) * 1976-05-25 1979-07-24 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Cutting machine
DE3712483A1 (de) * 1986-04-16 1987-10-22 Voest Alpine Ag Antriebsanordnung fuer die schraemkoepfe einer schraemmaschine
DE3820264A1 (de) * 1987-06-17 1989-01-05 Voest Alpine Ag Antriebsanordnung fuer die schraemkoepfe oder -walzen einer vortriebs- oder gewinnungsmaschine
DE3734350A1 (de) * 1987-10-10 1989-04-20 Salzgitter Maschinenbau Schraemkopf fuer teilschnittmaschine
US5478139A (en) 1993-05-25 1995-12-26 Rockmaster Equipment Manufacturing, Inc. Mobile digging/cutting system
DE19645650C1 (de) * 1996-11-06 1998-01-22 Webster Schaeff & Co Gesteinsfräskopf

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162104A (en) * 1976-05-25 1979-07-24 Vereinigte Osterreichische Eisen- Und Stahlwerke-Alpine Montan Aktiengesellschaft Cutting machine
DE3712483A1 (de) * 1986-04-16 1987-10-22 Voest Alpine Ag Antriebsanordnung fuer die schraemkoepfe einer schraemmaschine
DE3820264A1 (de) * 1987-06-17 1989-01-05 Voest Alpine Ag Antriebsanordnung fuer die schraemkoepfe oder -walzen einer vortriebs- oder gewinnungsmaschine
DE3734350A1 (de) * 1987-10-10 1989-04-20 Salzgitter Maschinenbau Schraemkopf fuer teilschnittmaschine
US5478139A (en) 1993-05-25 1995-12-26 Rockmaster Equipment Manufacturing, Inc. Mobile digging/cutting system
DE19645650C1 (de) * 1996-11-06 1998-01-22 Webster Schaeff & Co Gesteinsfräskopf
EP0841467A1 (fr) 1996-11-06 1998-05-13 Webster Schaeff & Co. Tête de fraisage pour le coupage de roche

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003033826A1 (fr) * 2001-10-16 2003-04-24 Simex Engineering Srl Fraiseuse pour pelles hydrauliques
US10273803B2 (en) 2016-12-15 2019-04-30 Caterpillar Global Mining Europe Gmbh Implement system for machine and operating method therefor
EP3527723A1 (fr) 2018-02-20 2019-08-21 BAUER Maschinen GmbH Procédé de traitement d'un sol et tête de fraisage correspondante

Also Published As

Publication number Publication date
DE50007392D1 (de) 2004-09-16
EP1183440B1 (fr) 2004-08-11
EP1183440A1 (fr) 2002-03-06
AU5509000A (en) 2000-12-28

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