EP0315547A1 - Schaufelbagger - Google Patents

Schaufelbagger Download PDF

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Publication number
EP0315547A1
EP0315547A1 EP88402784A EP88402784A EP0315547A1 EP 0315547 A1 EP0315547 A1 EP 0315547A1 EP 88402784 A EP88402784 A EP 88402784A EP 88402784 A EP88402784 A EP 88402784A EP 0315547 A1 EP0315547 A1 EP 0315547A1
Authority
EP
European Patent Office
Prior art keywords
bucket
buckets
frame
side walls
piston
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.)
Withdrawn
Application number
EP88402784A
Other languages
English (en)
French (fr)
Inventor
Karl Bollinger
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.)
Soletanche SA
Original Assignee
Soletanche SA
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 Soletanche SA filed Critical Soletanche SA
Publication of EP0315547A1 publication Critical patent/EP0315547A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/14—Grabs opened or closed by driving motors thereon
    • B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
    • 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
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
    • E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device

Definitions

  • the present invention relates to an excavator bucket bucket, and more particularly such a bucket comprising two buckets mounted movable relative to a frame, from an open position for attacking the ground, to a closed position where they enclose a certain amount of cuttings .
  • Such skips are already well known and used, for example suspended from a guide of the "Kelly" type, for digging trenches.
  • the angle of attack of the peaks mounted along the leading edge of the buckets is generally not optimal, so that the penetration into the ground is not always satisfactory.
  • the present invention aims to provide an improved bucket for optimizing all of the above parameters.
  • the subject of the invention is an excavating bucket comprising two buckets mounted movable relative to a frame, from an open position for attacking the ground to a closed position where they enclose a certain amount of cuttings, characterized by the fact that it comprises a central bucket body integral with said frame and comprising at least two side walls, the buckets being arranged to, in the closed position, come from either side of the central body with their side walls in the extension of the walls sides of the central body.
  • the central body consisting essentially of two side walls, can also be stiffened using a knife disposed at its lower part and forming a spacer between its two side walls, the buckets being arranged so that closed position, their leading edges meet in the vicinity of this knife.
  • each pivoting bucket on a support lever which is itself pivotally mounted on the frame, closing means being provided to cause, when the bucket is closed, firstly a rotation of the buckets relative to their support levers, and secondly a rotation of the levers relative to the frame.
  • This arrangement which allows greater opening of the bucket, also allows good filling of the central body.
  • the buckets are filled, essentially digging the edges of the trench.
  • the buckets dig the bottom of the trench by pushing the corresponding cuttings into the body of the bucket, because during this second time, the axis of rotation of the buckets is displaced upwards at the articulation of the levers on the frame.
  • the means for closing the bucket may comprise, for each bucket, a first jack mounted between the frame and the end of the respective lever opposite the axis of rotation of the bucket, and a second cylinder mounted between the lever and the bucket.
  • This piston is to facilitate the ejection of the cuttings contained in the bucket, and more particularly in its central body, when the latter is opened.
  • the movement of the ejector piston can be obtained using at least one pendulum whose first end is mounted on one of the levers and whose second end is mounted on the ejector piston, so as to cause the piston to rise bottom of the lever pivots towards the central body in order to close the bucket.
  • this balance can have its first end mounted at the bottom of the lever and its second end mounted on the ejector piston at a point located above the first end when the bucket is open with the piston in the low position.
  • the bucket according to the invention comprises a frame 1, connected in the present case to a guide 2 of the "Kelly” type allowing it to rise and descend in a trench 3, and equipped with lateral guides 4 allowing its guidance in the trench.
  • a central bucket body 5 consisting essentially of two side walls 6 produced in the form of metal plates, is integral with the frame 1. Only one of these plates has been shown in FIGS. 1 to 3.
  • a knife 7 facilitating the penetration of the bucket into the bottom 8 of the spacer-shaped trench between the two walls 6.
  • levers 9 are mounted on the frame 1, articulated around horizontal axes 10. These levers are controlled using jacks 11, the body of which is mounted on the frame 1 and the rod is mounted on the upper end 12 of the levers 9.
  • a bucket 13 is pivotally mounted about a horizontal axis 14. The position of this bucket relative to its support lever is controlled using a jack 15 whose body is mounted at the upper end 12 of the lever 9 and the rod of which is mounted on the bucket 13.
  • a piston 16 formed of a vertical beam 17 with an I-section and an ejection point 18, is mounted to slide vertically between four horizontal rollers 19 mounted between the walls 6.
  • This piston is controlled by two pendulums 20, each of these pendulums having one of its ends 21 articulated at the lower end of the arm 9 and its other end 22 articulated on the beam 17.
  • the leading edge of the buckets 13 is provided with peaks 23, and the side walls of these buckets have their free edges 24 of a shape complementary to that of the edges 25 of the walls 6, so that when the bucket is closed ( Figures 3 and 5), the side walls of the buckets are in line with the side walls 6 of the central body 5.
  • levers 9, as well as the pendulums 20, are in fact double levers and double pendulums.
  • the jacks 15 are then deployed, making the buckets 13 pivot around the axis 14 as shown in FIG. 2.
  • the buckets 13 collect the cuttings 27 removed from the edges 26 of the trench.
  • the pendulums 20 also ensure the synchronization of the levers 9. Indeed, the hydraulic jacks 15 working independently of one another, a lever 9 could in heterogeneous terrain, be tighter than the other, causing an imbalance of the bucket .
  • the opening of the bucket takes place in reverse sequence, also in two stages, the piston 16 helping to eject the cuttings from the body of the bucket 5.
  • a sequence valve (not shown) can be provided to automatically control the operating sequence of the jacks 11 and 15.
  • cuttings ejectors could be installed in the two buckets 13 in addition to the piston 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Soil Working Implements (AREA)
  • Shovels (AREA)
EP88402784A 1987-11-05 1988-11-04 Schaufelbagger Withdrawn EP0315547A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8715355A FR2622910B1 (fr) 1987-11-05 1987-11-05 Benne excavatrice a godets
FR8715355 1987-11-05

Publications (1)

Publication Number Publication Date
EP0315547A1 true EP0315547A1 (de) 1989-05-10

Family

ID=9356524

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88402784A Withdrawn EP0315547A1 (de) 1987-11-05 1988-11-04 Schaufelbagger

Country Status (6)

Country Link
US (1) US4882859A (de)
EP (1) EP0315547A1 (de)
JP (1) JPH01151622A (de)
DE (1) DE315547T1 (de)
ES (1) ES2009748A4 (de)
FR (1) FR2622910B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412477A1 (de) * 1989-08-05 1991-02-13 Bauer Spezialtiefbau GmbH Zwangsgeführter Schlitzwandgreifer
FR2651763A1 (fr) * 1989-09-12 1991-03-15 Ferrailles Cie Fse Grappin a dispositif de percage integre pour la manutention de ferrailles.
IT201700053568A1 (it) * 2017-05-17 2018-11-17 Negrini Srl Benna mordente a taglio lineare per il recupero in acqua di materiale inquinante o simile
IT202000018067A1 (it) * 2020-07-27 2022-01-27 Negrini Srl Attrezzatura e procedimento per la realizzazione di scavi nel terreno

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
JPH07158103A (ja) * 1993-12-10 1995-06-20 Japanic:Kk クラムシェルバケットの構造及びその制御回路
US5540005A (en) * 1995-07-21 1996-07-30 Lynch; Robert P. Contaminated marine sediments dredging apparatus
ES2160081B1 (es) * 1999-12-16 2002-06-01 Codina Juan Vicente Herrero Cuchara para maquinas excavadoras de muros pantallas y pilotes rectangulares, y maquina dotada de dicha cuchara.
US9452912B1 (en) * 2015-03-27 2016-09-27 Raymond Bergeron Hydraulic power bucket
WO2020250886A1 (ja) * 2019-06-12 2020-12-17 株式会社小島組 浚渫作業船
CN111648426B (zh) * 2020-06-15 2022-11-04 北京三一智造科技有限公司 一种用于地下连续墙施工的钻抓装置及卷扬机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501594A (en) * 1944-10-19 1950-03-21 Roy O Billings Excavating bucket
FR63268E (fr) * 1952-09-02 1955-09-12 Perfectionnement apporté aux bennes preneuses automatiques
US2837846A (en) * 1953-09-21 1958-06-10 Daniel L Long Hydraulic clamshell bucket
FR1341446A (fr) * 1962-12-28 1963-10-25 Benne fouilleuse pour la réalisation d'excavations
FR2026820A1 (de) * 1969-09-26 1970-09-25 Poclain Sa
FR2389723A1 (en) * 1977-05-05 1978-12-01 Poclain Sa Clamshell bucket for earth excavator - has two segmental shells pivoting about parallel axes and flanking ripper tooth which pivots normally

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US787022A (en) * 1905-01-12 1905-04-11 Alfred Bode Turning-shovel dredger.
US1026573A (en) * 1911-08-17 1912-05-14 Wilhelm Ellingen Automatic grab for material in large pieces.
US1400922A (en) * 1919-12-08 1921-12-20 Frank H Williams Crane-hook grab-bucket
DE1904454A1 (de) * 1969-01-30 1970-08-13 Otto Lehmann Tiefschachtgreifer,insbesondere Schlitzgreifer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501594A (en) * 1944-10-19 1950-03-21 Roy O Billings Excavating bucket
FR63268E (fr) * 1952-09-02 1955-09-12 Perfectionnement apporté aux bennes preneuses automatiques
US2837846A (en) * 1953-09-21 1958-06-10 Daniel L Long Hydraulic clamshell bucket
FR1341446A (fr) * 1962-12-28 1963-10-25 Benne fouilleuse pour la réalisation d'excavations
FR2026820A1 (de) * 1969-09-26 1970-09-25 Poclain Sa
FR2389723A1 (en) * 1977-05-05 1978-12-01 Poclain Sa Clamshell bucket for earth excavator - has two segmental shells pivoting about parallel axes and flanking ripper tooth which pivots normally

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0412477A1 (de) * 1989-08-05 1991-02-13 Bauer Spezialtiefbau GmbH Zwangsgeführter Schlitzwandgreifer
FR2651763A1 (fr) * 1989-09-12 1991-03-15 Ferrailles Cie Fse Grappin a dispositif de percage integre pour la manutention de ferrailles.
EP0418124A1 (de) * 1989-09-12 1991-03-20 Compagnie Francaise Des Ferrailles Greifer mit einer Lochvorrichtung für die Handhabung von Schrotteisen
IT201700053568A1 (it) * 2017-05-17 2018-11-17 Negrini Srl Benna mordente a taglio lineare per il recupero in acqua di materiale inquinante o simile
IT202000018067A1 (it) * 2020-07-27 2022-01-27 Negrini Srl Attrezzatura e procedimento per la realizzazione di scavi nel terreno

Also Published As

Publication number Publication date
DE315547T1 (de) 1989-12-07
FR2622910B1 (fr) 1992-02-28
FR2622910A1 (fr) 1989-05-12
JPH0364654B2 (de) 1991-10-08
ES2009748A4 (es) 1989-10-16
US4882859A (en) 1989-11-28
JPH01151622A (ja) 1989-06-14

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