GB2015963A - Hydraulic excavator - Google Patents

Hydraulic excavator

Info

Publication number
GB2015963A
GB2015963A GB7911458A GB7911458A GB2015963A GB 2015963 A GB2015963 A GB 2015963A GB 7911458 A GB7911458 A GB 7911458A GB 7911458 A GB7911458 A GB 7911458A GB 2015963 A GB2015963 A GB 2015963A
Authority
GB
United Kingdom
Prior art keywords
boom
excavator
knuckle joint
elevation
joint
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Withdrawn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
GB7911458A
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.)
HYMAC Ltd
Original Assignee
HYMAC 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 HYMAC Ltd filed Critical HYMAC Ltd
Priority to GB7911458A priority Critical patent/GB2015963A/en
Publication of GB2015963A publication Critical patent/GB2015963A/en
Withdrawn legal-status Critical Current

Links

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
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • E02F3/964—Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine

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)

Abstract

A hydraulic excavator has a boom 3 which is provided with a knuckle joint 16 about mid-way along its length where the depth of the boom 3 is at its greatest, so that offset working can be achieved by swinging the inner part 14 of the boom 3 laterally with its outer part 15 held parallel to the axis of the excavator. Short hydraulic rams 6, 10 respectively control the elevation of the boom 3 and the elevation of the dipper 8 and operate from the knuckle joint 16 beside the two parts 14, 15 of the boom 3. The angle of the knuckle joint 16 is lockable either by an hydraulic ram 17 or by means of a perforated strip and a peg arrangement alongside the joint 16. The chassis 1 of the excavator is stabilised by splayed extendible legs 22, 23 of diagonally arranged square cross-section. <IMAGE>
GB7911458A 1978-02-07 1979-04-02 Hydraulic excavator Withdrawn GB2015963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7911458A GB2015963A (en) 1978-02-07 1979-04-02 Hydraulic excavator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB485778 1978-02-07
GB7911458A GB2015963A (en) 1978-02-07 1979-04-02 Hydraulic excavator

Publications (1)

Publication Number Publication Date
GB2015963A true GB2015963A (en) 1979-09-19

Family

ID=26239422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911458A Withdrawn GB2015963A (en) 1978-02-07 1979-04-02 Hydraulic excavator

Country Status (1)

Country Link
GB (1) GB2015963A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403429A (en) * 1980-11-04 1983-09-13 Vema, S.P.A. Articulated arm for excavator machines
GB2126982A (en) * 1982-09-14 1984-04-04 Orenstein & Koppel Ag Hydraulic excavator equipment
DE3638423A1 (en) * 1985-12-23 1987-07-02 Kubota Ltd ALL-ROUND SWIVEL LOW-BUCKET EXCAVATOR
WO1988004277A1 (en) * 1986-12-04 1988-06-16 Logos Export Ab A lifting arrangement, a so-called hoist, which can be mounted on a vehicle
WO2004044336A1 (en) * 2002-11-14 2004-05-27 J.C. Bamford Excavators Limited Excavating and loading machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403429A (en) * 1980-11-04 1983-09-13 Vema, S.P.A. Articulated arm for excavator machines
GB2126982A (en) * 1982-09-14 1984-04-04 Orenstein & Koppel Ag Hydraulic excavator equipment
DE3638423A1 (en) * 1985-12-23 1987-07-02 Kubota Ltd ALL-ROUND SWIVEL LOW-BUCKET EXCAVATOR
WO1988004277A1 (en) * 1986-12-04 1988-06-16 Logos Export Ab A lifting arrangement, a so-called hoist, which can be mounted on a vehicle
WO2004044336A1 (en) * 2002-11-14 2004-05-27 J.C. Bamford Excavators Limited Excavating and loading machine

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)