EP0318271A1 - Schwenkbarer Heckbagger und seine Verwendung zum Räumen von Erdreich von der Unterseite eines Gefüges - Google Patents

Schwenkbarer Heckbagger und seine Verwendung zum Räumen von Erdreich von der Unterseite eines Gefüges Download PDF

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Publication number
EP0318271A1
EP0318271A1 EP88311093A EP88311093A EP0318271A1 EP 0318271 A1 EP0318271 A1 EP 0318271A1 EP 88311093 A EP88311093 A EP 88311093A EP 88311093 A EP88311093 A EP 88311093A EP 0318271 A1 EP0318271 A1 EP 0318271A1
Authority
EP
European Patent Office
Prior art keywords
backhoe
group
turntable
chassis
scoop
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.)
Ceased
Application number
EP88311093A
Other languages
English (en)
French (fr)
Inventor
Ivon A. Chaumont
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.)
Vale Canada Ltd
Original Assignee
Vale Canada Ltd
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 Vale Canada Ltd filed Critical Vale Canada Ltd
Publication of EP0318271A1 publication Critical patent/EP0318271A1/de
Ceased 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
    • E02F3/28—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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/307—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
    • 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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes

Definitions

  • the instant invention relates to excavating apparatus in general and, more particularly, to a backhoe capable of being rotated about a horizontal axis.
  • a backhoe is a generic name for a common piece of construction equipment. They are generally self-propelled vehicles utilizing tires or tracks for locomotion. An articulated, downwardly pointed, swinging scoop is mounted at one end of the apparatus. Oftentimes a loading bucket is mounted at the opposite end.
  • Backhoes are usually used for trenching, digging and/or removing material.
  • the scoop is repeatedly outwardly extended, brought into contact with the ground or the material and then retracted upwardly to generate the desired hole, trench or cause material removal.
  • the material is generally disposed along the side of the backhoe or into an adjacent conveyance for subsequent handling.
  • the bucket if so equipped, is used for leveling or removing material.
  • backhoe action is limited to essentially vertical operations.
  • the backhoe is mounted on the unit so as to sweep through a vertical axis that is essentially normal to the ground. Available backhoes cannot rotate their scoops so as to operate parallel to the ground.
  • the mining community utilizes large conveyor systems to transport material from one area to another.
  • some of the conveyed material (muck, ore, rock, fines, etc.) falls underneath the conveying systems.
  • the conveyor system must actually be shut down and the material manually cleaned out so as not to interfere with proper operation of the conveyor.
  • assignee has experienced situations where the material actually oxidizes to form a hard intractable mass. Workers with chippers, hammers, picks, etc. must get under the conveyor and break up and remove the hardened material in order to maintain the maximum efficiency of the conveyor system. It goes without saying that under these circumstances the particular conveyor must be shut down for safety reasons while the manual cleaning operation is carried out.
  • a backhoe having a rotatable turntable assembly.
  • the turntable assembly enables the boom on a backhoe to be rotated to a horizontal orientation.
  • the turntable is affixed to the body of the apparatus.
  • the backhoe assembly is attached to the turntable. By rotating the turntable, the boom and scoop are rotated simultaneously to any position.
  • Figure 1 is a partially exploded overview of the relevant features of the invention, whereas Figure 2 provides a detailed cross sectional view of the means for rotating the backhoe.
  • backhoe chassis 10 There is depicted backhoe chassis 10.
  • the specific configuration of the backhoe chassis 10 is not relevant to this disclosure. Rather any suitable design (i.e. propelled, stationery, equipped with a loader, part of an additional piece of equipment, etc.) that functions as a mounting surface is adequate.
  • the backhoe group 12 is of a conventional design and, except as modified, is not claimed per se.
  • the backhoe group 12 includes scoop 14 pivotally supported by first member 16.
  • the first member 16 is pivotally supported by second member 18 which in turn is supported by boom 20.
  • hydraulic cylinders 22A, 22B and 22C are appropriately mounted on the members 16 and 18 and the boom 20.
  • the associated pumps, hydraulic lines and controls are not shown.
  • the cylinder 22C causes the scoop 14 to rise and fall by rising and lowering the members 16 and 18 and the boom 20.
  • the cylinder 22B swings the scoop 14 forward and back.
  • the cylinder 22A alters the angle of inclination of the scoop 14.
  • the backhoe group 12 includes socket 34 (partially obscured) which is sized to accommodate rod 36.
  • the rod 36 includes bracket 38.
  • Fluid driven cylinder 40 is pinned to plate 32 through eyelets 42.
  • a removable pin (not shown) bridges the eyelets 42 and the head of the cylinder 44.
  • the cylinder 40 is affixed to the boom 20 via bottom 46.
  • Pivot cap 26 includes two opposed brackets 48 having sleeved bores 50 therethrough.
  • the sleeved bores 50 are sized to accommodate the rod 36 and are spaced apart so that the socket 34 may fit between them.
  • a pair of apertures 52 receive suitable fasteners such as bolts, pins, etc (not shown) from the bracket 38.
  • the pivot cap 26 circumscribes trunnion 28 and is joined to pivot flange 30 by studs 56 and nuts 54.
  • Access hole 60 normally sealed, permits the introduction of a lubricant such as grease into lubricant grooves 58.
  • the backhoe group 12 is removed from chassis 10 and the plate 32 is affixed to the chassis 10.
  • the trunnion 28 and pivot flange 30 are assembled and back portion 62 of the trunnion 28 is welded to the plate 32.
  • the pivot cap 26 is then bolted to the pivot flange 30.
  • the backhoe group 12 is reattached to the chassis 10 by placing the socket 34 between the sleeved bores 50.
  • the rod 36 is inserted into the sleeved bores 50 and the socket 34.
  • the fasteners secure the bracket 38 to the apertures 52.
  • the cylinder 40 is then connected to the boom 20 and the eyelets 42. Of course, all the hydraulic lines, couplings and control devices are reconnected as well.
  • the embodiment shown is a manually operated design.
  • the pin passing through the eyelets 42 and the head 44 is removed and the turntable group 24 caused to be rotated 90 degrees (directional arrow 66) thereby bringing the scoop 14 horizontal to the ground.
  • a stop (not shown) prevents further rotation.
  • the scoop 14 is then operated scooping and pulling material away from the targeted area.
  • the backhoe group 12 is brought back to the vertical, and the cylinder 40 reconnected. Essentially the entire backhoe group 12 rotates about the fixed trunnion 28.
  • the cylinder 40 maintains the backhoe group 12 substantially vertical when the backhoe is in the vertical mode.
  • backhoe group 12 is relatively lightweight, the desired rotation and positioning may be accomplished by hand. Larger units may be remotely rotated to any position by appropriate power operated means (fluid driven cylinders, electric motors, etc.). Intermediate positions other than 90° may be utilized if conditions dictate.
  • the backhoe group 12 could be mounted upside-down on the turntable group 24. This orientation would allow the toothed portion of the scoop 14 to be facing upwardly. With the freedom of rotation permitted by the turntable group 24 about the horizontal axis 64, the scoop 14 could easily swing through an upward facing arc. Indeed by employing suitable stops, the turntable group 24 may permit full 360° rotating movement about the horizontal axis 64.
  • the instant invention easily permits the safe and frequent clean out of a conveyor assembly without the need to shut it down.
  • the backhoe is oriented approximately perpendicular to the conveyor and the backhoe group 12 rotated to the horizontal position. The operator commences to clean out the space beneath the conveyor by operating the scoop 14 and removing the fallen material. After the cleaning process has been terminated, the backhoe group 12 is righted and may either return the scooped material to the conveyor or load it somewhere else.
EP88311093A 1987-11-26 1988-11-23 Schwenkbarer Heckbagger und seine Verwendung zum Räumen von Erdreich von der Unterseite eines Gefüges Ceased EP0318271A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA552829 1987-11-26
CA552829 1987-11-26

Publications (1)

Publication Number Publication Date
EP0318271A1 true EP0318271A1 (de) 1989-05-31

Family

ID=4136938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88311093A Ceased EP0318271A1 (de) 1987-11-26 1988-11-23 Schwenkbarer Heckbagger und seine Verwendung zum Räumen von Erdreich von der Unterseite eines Gefüges

Country Status (3)

Country Link
EP (1) EP0318271A1 (de)
JP (1) JPH01165832A (de)
AU (1) AU611738B2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394594B (de) * 1989-08-22 1992-05-11 Fuchsmeier Hermann Loeffelbagger
AT395881B (de) * 1990-10-09 1993-03-25 Josef Kaiser Bagger
LT3788B (en) 1990-11-15 1996-03-25 Juergen Kulle Excavator
AU714190B2 (en) * 1996-03-07 1999-12-23 Ian Clive Pollard Improved attachment for skid steer loader
CN103758517A (zh) * 2014-01-21 2014-04-30 辽宁威跃集团机械制造有限公司 矿用自行侧卧挖装清底机及其使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106638735A (zh) * 2015-11-02 2017-05-10 宜昌长兴机械制造有限公司 挖掘机机械手臂及多功能挖掘机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847134A (en) * 1955-05-31 1958-08-12 H J Whitt Ditch digging attachment for tractors
FR1167295A (fr) * 1957-02-27 1958-11-24 Pelleteuse
FR1379708A (fr) * 1963-10-04 1964-11-27 Dispositif de chargement comportant une flèche
US3463336A (en) * 1967-11-15 1969-08-26 Bucyrus Erie Co Backhoe excavator or the like with power actuated side tilting handle
FR2157879A1 (de) * 1971-10-27 1973-06-08 Orenstein & Koppel Ag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847134A (en) * 1955-05-31 1958-08-12 H J Whitt Ditch digging attachment for tractors
FR1167295A (fr) * 1957-02-27 1958-11-24 Pelleteuse
FR1379708A (fr) * 1963-10-04 1964-11-27 Dispositif de chargement comportant une flèche
US3463336A (en) * 1967-11-15 1969-08-26 Bucyrus Erie Co Backhoe excavator or the like with power actuated side tilting handle
FR2157879A1 (de) * 1971-10-27 1973-06-08 Orenstein & Koppel Ag

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394594B (de) * 1989-08-22 1992-05-11 Fuchsmeier Hermann Loeffelbagger
AT395881B (de) * 1990-10-09 1993-03-25 Josef Kaiser Bagger
DE4132908C2 (de) * 1990-10-09 2001-04-26 Josef Kaiser Bagger
LT3788B (en) 1990-11-15 1996-03-25 Juergen Kulle Excavator
US5625967A (en) * 1990-11-15 1997-05-06 Kulle; Juergen Device for controlling at least one attachment
AU714190B2 (en) * 1996-03-07 1999-12-23 Ian Clive Pollard Improved attachment for skid steer loader
CN103758517A (zh) * 2014-01-21 2014-04-30 辽宁威跃集团机械制造有限公司 矿用自行侧卧挖装清底机及其使用方法
CN103758517B (zh) * 2014-01-21 2016-05-18 辽宁威跃集团机械制造有限公司 矿用自行侧卧挖装清底机及其使用方法

Also Published As

Publication number Publication date
JPH01165832A (ja) 1989-06-29
AU2592688A (en) 1989-06-01
AU611738B2 (en) 1991-06-20

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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