EP0506758B1 - Godet d'excavateur - Google Patents

Godet d'excavateur Download PDF

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Publication number
EP0506758B1
EP0506758B1 EP91901329A EP91901329A EP0506758B1 EP 0506758 B1 EP0506758 B1 EP 0506758B1 EP 91901329 A EP91901329 A EP 91901329A EP 91901329 A EP91901329 A EP 91901329A EP 0506758 B1 EP0506758 B1 EP 0506758B1
Authority
EP
European Patent Office
Prior art keywords
bucket
brush
arm
excavating
bucket according
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.)
Expired - Lifetime
Application number
EP91901329A
Other languages
German (de)
English (en)
Other versions
EP0506758A1 (fr
Inventor
Erik Nilsson
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.)
TREMAN HB
Original Assignee
TREMAN HB
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 TREMAN HB filed Critical TREMAN HB
Publication of EP0506758A1 publication Critical patent/EP0506758A1/fr
Application granted granted Critical
Publication of EP0506758B1 publication Critical patent/EP0506758B1/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
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/962—Mounting of implements directly on tools already attached to the machine

Definitions

  • the present invention relates generally to an excavator bucket, and more particularly to an excavator bucket which is intended to coact fixedly but detachably with the excavator arm of an excavating machine.
  • the bucket may advantageously be secured to the arm by means of known quick-coupling devices, and movement of the arm and movement of the bucket, through its pivotal attachment to the arm, are controlled in a known manner with the aid of hydraulically operable piston-cylinder devices, in the following abbreviated to hydraulic piston device.
  • the holder arm can be pivoted through an angle of 120°, between a downwardly swung position in which the brush is caused to rotate and therewith sweep away the thin layer of filling material which remains subsequent to shovelling away filling material from a buried conduit, therewith to expose the conduit, and an upwardly raised position in which the holder arm abuts the stick, thereby enabling the excavator to be used for excavating purposes when the brush is in its raised position.
  • a qualified technical problem is one of providing a solution for fulfilling the aforesaid purpose of removing a residual layer of material covering a conduit subsequent to shovelling away filling material, so as to expose a conduit or conduits with the aid of an excavating bucket produced as a complete unit and capable of being readily switched between different tractors with the aid of quick-coupling devices, at the same time as a special-duty bucket can be replaced with a conventional bucket when required.
  • Another technical problem is one of realising the advantages which an excavating bucket having a rotatable brush will afford when the bucket is caused to coact with a so-called rotor tilt.
  • a technical problem resides in providing a bucket construction in which a rotatable brush can be caused to take a first position in which the brush is located within the bucket and a second position in which said brush extends from said bucket, where in the first inactive position of the brush said brush is located within a rearwardly open space formed in the rear part of the bucket.
  • Another technical problem is one of realising the technical advantages afforded when the hydraulic piston is caused to coact with the arm via a slot which enables the rotatable brush to travel freely within narrow limits, thereby to improve shovelling-away of light filling materials and therewith expose the conduit.
  • a further technical problem is one of providing a bucket which is constructed in a manner which will fulfil the aforesaid purpose, and to realise the significance of enabling the brush to rotate from the first to the second position in a 90° pendulating movement in a direction which conforms with a line that constitutes an extension rearwardly of the lowermost planar part of the bucket.
  • Another technical problem is one of realising within which angular values the first and the second position shall be selected in relation to a line that extends perpendicularly to the lowermost planar part of the bucket.
  • the present invention provides an excavating bucket of particular configuration which is not only well adapted for coaction with an excavating arm forming part of the excavating machine, via known coupling means, but which is also adapted to provide a bucket whose purpose is to remove thin layers of material that remain above a conduit subsequent to shovelling away filling material above said conduit, such as to expose one or more conduits.
  • the inventive construction utilizes a known rotatable brush which, in accordance with the invention, is arranged for movement between a first position in which the brush is located within the bucket and a second position in which the brush is extended from the bucket, wherein when occupying said first position, the brush is located within a rearwardly open space formed in the rear part of the bucket.
  • the rotatable brush is carried by one or two arms which are pivotally connected to the upper, rear wall part of the bucket, and in that a drive motor is connected to the arm such as to cause the brush to swing in one of two directions, through the intermediary of transmission means.
  • a hydraulic piston device is mounted within the upper part of the bucket and caused to coact with the arm or arms through the intermediary of a slot.
  • pivotal movement of the brush from the first to the second position is a pendulating movement with a movement direction that conforms with a line constituting an extension of the lowermost planar part of the bucket, and that the angular value between the first and the second position is smaller than 110° and greater than 60°, preferably within the range 100°-80°.
  • the angular values shall divide so as to be halved on each respective side of a line which extends perpendicularly to the lowermost planar part of the bucket.
  • the distance between the pivot axis of the arm and the rotational axis of the brush is between 1.5 and 0.7 times the brush diameter, preferably between 1.0 and 0.8.
  • the hydraulic piston device is arranged to coact with the arm at a point which is located above the pivot axis of the arm and at a small distance between said point and said pivot axis, so as to obtain a large pendulum movement with a small piston movement.
  • an excavating bucket By using an excavating bucket, it is possible to connect or couple the bucket to the excavator arm in a manner known per se and with the aid of known coupling devices, thereby enabling the specially constructed bucket to be exchanged for another bucket, for instance a bucket that is intended solely for excavating purposes.
  • FIG 1 is a very simplified illustration of a tractor 1 having a known excavator unit comprising, inter alia, an excavating arm 2.
  • the free end 2a of the arm 2 coacts with an excavating bucket 3 through the intermediary of a coupling 4, said bucket being constructed in accordance with the present invention.
  • Figure 1 illustrates the rotatable brush in a second position ( Figure 3) in which it extends from the bucket for the purpose of removing a layer of material C that remains above a conduit B subsequent to shovelling away filling material A, therewith to expose the conduit B.
  • the conduit B may be one or more electrical conductors, or cables, one or more gas conduits, one or more water conduits, etc.
  • Figure 2 illustrates the bucket 3 with the rotatable brush folded into its first position, said bucket being shown in a slightly larger scale and with a part further enlarged.
  • the rotatable brush 5 is held firmly by an arm 6 which is positioned centrally in the bucket and which coacts with a hydraulic motor 7 by means of which a transmission 8 is caused to drive the rotatable brush 5 in one of two rotational directions.
  • the requisite changeover device or switch is not shown, but may be electrical.
  • the arm 6 is pivotally connected to the bucket by a pivot pin 9 and the arm 6 is held in the position shown in Figure 2 with the aid of a hydraulic piston device 10.
  • the rotatable brush 5 can be moved to a first position, shown in Figure 2, in which the brush is located in the bucket, and a second position, according to Figure 3, in which the brush is extended out from the bucket.
  • the brush In the first brush position, shown in Figure 2, the brush is located within a rearwardly open space 3a formed in the rear part of the bucket. This space is defined forwardly by an intermediate wall 3b and separates the forwardly open space 3c of the bucket intended for shovelling filling material.
  • the arm 6 is pivotally mounted to the wall 3e of the bucket 3 and to its upper rear part.
  • the hydraulic piston device 10 is mounted within the upper part 3f of the bucket and coacts with the arm 6 at 11.
  • the uppermost part of the arm is, in this case, provided with a pin 11.
  • the pin 11 is located in a slot 12 and enables the brush 5 to swing backwards and forwards when the brush is used within the angular values applicable between the position shown in Figure 2 and the position shown in Figure 3.
  • the hydraulic piston device 10 is positioned parallel with the lowermost planar part 3g of the bucket and is secured in a known manner.
  • rotation of the brush 5 from the first position in Figure 2 to the second position in Figure 3 is a pendulum-like movement with the direction of movement following a line that constitutes an imaginary extension of the lowermost planar part 3g of the bucket.
  • the angular value between the first and the second positions is selected to 90° and the brush will swing through 45° on respective sides of a line 15 which extends perpendicularly to said extension of the planar part 3g.
  • the distance between the pivot axis 9 of the arm 6 and the rotational axis 16 of the brush 5 is 0.9 times the diameter of the brush.
  • the hydraulic piston 10 is intended to coact with the arm at a point which is located above the pivot axis 9 of the arm 6. This distance shall be small, so as to afford a large pivotal movement of the brush 5 in response to a small piston movement of the hydraulic piston device 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Earth Drilling (AREA)
  • Component Parts Of Construction Machinery (AREA)

Claims (10)

  1. Pelle d'excavation (3) adaptée pour action combinée avec un bras d'excavation (2) faisant partie d'une machine d'excavation (1), caractérisée en ce qu'une brosse rotative (5) qui est prévue pour prendre une première position dans laquelle la brosse (5) est basculée dans la pelle (3) et une deuxième position dans laquelle la brosse (5) est déployée hors de ladite pelle (3) et en ce que ladite brosse (5) est située dans un espace ouvert vers l'arrière (3a) formé dans la partie arrière de la pelle (3) lorsque ladite brosse (5) est dans sa première position.
  2. Pelle selon la revendication 1, caractérisée en ce que la brosse (5) est portée par un ou deux bras (6) reliés par pivotement à la pelle (3) à sa partie arrière supérieure.
  3. Pelle selon la revendication 2, caractérisée en ce qu'un moteur d'entraînement (7) agit en combinaison avec le bras (6) et fonctionne pour faire basculer la brosse (5) dans une de deux directions de rotation par l'intermédiaire d'une transmission (8).
  4. Pelle selon la revendication 1 ou 2, caractérisée en ce qu'un dispositif de piston hydraulique (10) est monté dans la partie supérieure (3f) de la pelle (3) et agit en combinaison avec le ou les bras (6).
  5. Pelle selon la revendication 4, caractérisée en ce que le piston hydraulique (10) agit en combinaison avec le bras (6) à travers une fente (12).
  6. Pelle selon la revendication 1, caractérisée en ce que le pivotement de la brosse (5) de la première à la deuxième position a lieu sous la forme d'un mouvement pendulaire dans une direction correspondant à une extension d'une partie plane la plus basse (3g) de la pelle (3).
  7. Pelle selon la revendication 1, caractérisée en ce que la valeur angulaire pour le mouvement maximum de la brosse (5) entre la première et la deuxième position est plus faible que 110° et plus forte que 60°, de préférence dans la gamme de 100° - 80°.
  8. Pelle selon la revendication 1 ou 2, caractérisée en ce que la distance entre l'axe de pivotement (9) du bras (6) et l'axe de rotation (16) de la brosse (5) est entre 1,5 et 0,7 fois le diamètre de la brosse, de préférence entre 1,0 et 0,8 fois.
  9. Pelle selon la revendication 4 ou 5, caractérisée en ce que le dispostif de piston hydraulique (10) est prévu pour agir en combinaison avec le bras (6) à un point situé au-dessus de l'axe de pivotement (9) du bras (6).
  10. Pelle selon la revendication 2, caractérisée en ce que la brosse (5) est portée par un bras (6) qui est placé centralement dans la pelle (3).
EP91901329A 1989-12-21 1990-12-11 Godet d'excavateur Expired - Lifetime EP0506758B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8904302 1989-12-21
SE8904302A SE463217B (sv) 1989-12-21 1989-12-21 Graevskopa med roterbar borste
PCT/SE1990/000820 WO1991010016A1 (fr) 1989-12-21 1990-12-11 Godet d'excavateur

Publications (2)

Publication Number Publication Date
EP0506758A1 EP0506758A1 (fr) 1992-10-07
EP0506758B1 true EP0506758B1 (fr) 1995-06-07

Family

ID=20377824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901329A Expired - Lifetime EP0506758B1 (fr) 1989-12-21 1990-12-11 Godet d'excavateur

Country Status (6)

Country Link
EP (1) EP0506758B1 (fr)
AT (1) ATE123546T1 (fr)
DE (1) DE69019986T2 (fr)
FI (1) FI922788A0 (fr)
SE (1) SE463217B (fr)
WO (1) WO1991010016A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423137A (en) * 1993-11-12 1995-06-13 Cochran; Gary L. Pavement cutting and excavating tool
DE19727549C2 (de) * 1997-06-28 2000-03-02 Wirtgen Gmbh Vorrichtung sowie Verfahren zum Ausheben und Auffüllen von Erdreich
US6269560B1 (en) * 1998-10-30 2001-08-07 Rockland Inc. Sweeping assembly for excavating machines and the like
DE19907430C5 (de) * 1999-01-29 2005-12-15 Schenk, Jürgen Einrichtung zum Aufbrechen von Deckschichten
DE102011106991B4 (de) * 2011-07-08 2014-04-03 Christian Bertram Anbaugerät; Verfahren zur Aufnahme von auf einem Boden gelagerten Schüttgut

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922745A (en) * 1974-02-14 1975-12-02 Elgin Sweeping Services Inc Broom device
US4100688A (en) * 1976-08-19 1978-07-18 Earth Pack, Inc. Earth working apparatus
SE454899B (sv) * 1986-10-22 1988-06-06 Gunnar Olsson Tillsatsredskap for grevare

Also Published As

Publication number Publication date
FI922788A (fi) 1992-06-16
EP0506758A1 (fr) 1992-10-07
DE69019986T2 (de) 1996-04-04
SE8904302A (fr) 1990-10-22
ATE123546T1 (de) 1995-06-15
WO1991010016A1 (fr) 1991-07-11
SE463217B (sv) 1990-10-22
DE69019986D1 (de) 1995-07-13
SE8904302D0 (sv) 1989-12-21
FI922788A0 (fi) 1992-06-16

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