GB2126982A - Hydraulic excavator equipment - Google Patents

Hydraulic excavator equipment Download PDF

Info

Publication number
GB2126982A
GB2126982A GB08324345A GB8324345A GB2126982A GB 2126982 A GB2126982 A GB 2126982A GB 08324345 A GB08324345 A GB 08324345A GB 8324345 A GB8324345 A GB 8324345A GB 2126982 A GB2126982 A GB 2126982A
Authority
GB
United Kingdom
Prior art keywords
boom section
superstructure
excavator
chassis
link
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Withdrawn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
GB08324345A
Other versions
GB8324345D0 (en
Inventor
Franz Heine
Heinz-Joachim Ruttershoff
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.)
CNH Industrial Baumaschinen GmbH
Original Assignee
O&K Orenstein and Koppel GmbH
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 O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Publication of GB8324345D0 publication Critical patent/GB8324345D0/en
Publication of GB2126982A publication Critical patent/GB2126982A/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Withdrawn legal-status Critical Current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
    • E02F3/30—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
    • E02F3/302—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 with an additional link
    • 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
    • E02F3/301—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 with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • 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

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)
  • Earth Drilling (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

Hydraulic excavator equipment for working in a plane to one side of the excavator chassis, especially for digging trenches, comprises a two- part boom (2, 3) mounted on the excavator super-structure 1 which can revolve about a vertical axis relative to the chassis. With a view to extending the operating range of the equipment, a pivot link (4) is provided between the upper and lower boom sections (3, 2). The link includes a pivot axis (7), located in a vertical plane, about which the upper boom section (3) can pivot relative to the lower boom section (2). A spacer member (8) extends parallel to the lower boom section (2) between the link (4) and the superstructure (1) and may be of constant length (as shown) to maintain the pivot axis (7) in a vertical position, or of variable length to enable the orientation of the pivot axis (7) to be changed. <IMAGE>

Description

SPECIFICATION Hydraulic excavator equipment The invention relates to excavator equipment and, more especially, to excavator equipment for working in a plane to one side of the excavator chassis.
A known mobile bucket excavator has a superstructure which can revolve about a vertical axis on the mobile chassis, the excavator boom being mounted on a support which can pivot about a vertical axis on the superstructure. The circle of revolution covered by the superstructure projects laterally beyond the chassis and, by revolving the superstructure and pivoting the boom support, the working plane of the boom and thereby of the excavator bucket can be offset laterally so that trenches can be dug which run to one side of, and parallel to, the chassis. (German Patent 1,109,618).
A disadvantage of known excavator equipment for working to one side of the excavator chassis is that trenches with vertical side walls can only be dug to a particular depth and the problem with which the present invention is concerned is that of enabling an increased operating range to be provided.
The present invention provides hydraulic excavator equipment for working in a plane to one side of the excavator chassis, comprising a superstructure rotatable above a vertical axis relative to the chassis and carrying a boom comprising a lower boom section and an upper boom section interconnected by a link providing a pivot axis which is located in a vertical plane and about which the upper boom section is pivotally movable relative to the lower boom section.
In a method of operating excavator equipment according to the invention, the pivot axis is held so that it is maintained in a vertical position. To this end, the link may be connected to the superstructure by parallel guiding means. In an embodiment of the invention, the parallel guiding means includes a spacer member connected parallel to the lower boom section between the link and the superstructure.
In another embodiment of the invention, the length of the spacer member is adjustable.
An extension of the working radius described above is then possible if the length of the spacer member is altered and thus the axis of the pivot linl is selectively dispiaced out of the perpendicular.
Embodiments of the invention will be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 shows a plan view of a hydraulic excavator; Figures 2 and 3 show side views of the hydraulic excavator, and Figure 4 shows a side view of a modified form of the hydraulic excavator.
In the Figures, corresponding parts are provided with the same reference numbers.
Figure 1 shows the superstructure 1 of an hydraulic excavator with a boom comprising a lower boom section 2, an upper boom section 3 and a pivot link 4 arranged between the two. A digger bucket 5 is attached to an arm 6 at the extremity of the boom.
Figures 2 and 3 show side views of the hydraulic excavator with the boom in different positions. The superstructure 1 is mounted to revolve about a vertical axis (not indicated) on a mobile chassis and it can be seen that the pivot link 4 provides a further axis 7, which is also vertical, about which the upper boom section 3 can pivot relative to the lower boom section 2.
The lower boom section 2 is pivotally coupled to the superstructure 1 for movement in a vertical plane relative thereto, this movement being effected in the conventional manner by an hydraulic actuator connected between the lower boom sectionand the superstructure. At its outer end, the lower boom section 2 is pivotally connection to the pivot link 4.
A spacer member 8 is also pivotally connected between the pivot link 4 and the superstructure 1, parallel to lower boom section 2. These parts 8 and 2 together constitute a guiding arrangement for the link 4 to ensure, as the lower boom section 2 is raised (Fig. 2) or lowered (Fig. 3), that the pivot axis 7 remains vertical.
It will be apparent from Figs. 1 to 3 that, by turning the superstructure 1 relative to the chassis and pivoting the upper boom section 3 about the axis 7, the bucket 5 can be positioned to dig a trench to one side of the chassis. By raising or lowering the lower boom section 2, different trench floor depths can be achieved.
Figure 4 illustrates an alternative arrangement in which the constant spacer member 8 of Figs. 1 to 3 is replaced by a variable-length member, e.g.
by a hydraulic cylinder 9. It is thereby possible to displace the axis 7 of the link 4 selectably out of the perpendicular and, as a result, the working radius of the excavator equipment can be extended. In particular, it is possible with such an arrangement to bring the digger bucket 5 to a comparatively high level for emptying, as indicated by the position shown in broken lines in the Figure.
Claims
1. Hydraulic excavator equipment for working in a plane to one side of the excavator chassis comprising a superstructure rotatable about a vertical axis relatiive to the chassis and carrying a boom comprising a lower boom section and an upper boom section interconnected by a link providing a pivot axis which is located in a vertical plane and about which the upper boom section is pivotally movable relative to the lower boom section.
2. Hydraulic excavator equipment according to Claim 1, in which the link is connected to the super-structure by parallel guiding means.
3. Hydraulic excavator equipment according to Claim 2 in which the parallel guiding means includes a spacer member connected parallel to
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (9)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Hydraulic excavator equipment The invention relates to excavator equipment and, more especially, to excavator equipment for working in a plane to one side of the excavator chassis. A known mobile bucket excavator has a superstructure which can revolve about a vertical axis on the mobile chassis, the excavator boom being mounted on a support which can pivot about a vertical axis on the superstructure. The circle of revolution covered by the superstructure projects laterally beyond the chassis and, by revolving the superstructure and pivoting the boom support, the working plane of the boom and thereby of the excavator bucket can be offset laterally so that trenches can be dug which run to one side of, and parallel to, the chassis. (German Patent 1,109,618). A disadvantage of known excavator equipment for working to one side of the excavator chassis is that trenches with vertical side walls can only be dug to a particular depth and the problem with which the present invention is concerned is that of enabling an increased operating range to be provided. The present invention provides hydraulic excavator equipment for working in a plane to one side of the excavator chassis, comprising a superstructure rotatable above a vertical axis relative to the chassis and carrying a boom comprising a lower boom section and an upper boom section interconnected by a link providing a pivot axis which is located in a vertical plane and about which the upper boom section is pivotally movable relative to the lower boom section. In a method of operating excavator equipment according to the invention, the pivot axis is held so that it is maintained in a vertical position. To this end, the link may be connected to the superstructure by parallel guiding means. In an embodiment of the invention, the parallel guiding means includes a spacer member connected parallel to the lower boom section between the link and the superstructure. In another embodiment of the invention, the length of the spacer member is adjustable. An extension of the working radius described above is then possible if the length of the spacer member is altered and thus the axis of the pivot linl is selectively dispiaced out of the perpendicular. Embodiments of the invention will be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 shows a plan view of a hydraulic excavator; Figures 2 and 3 show side views of the hydraulic excavator, and Figure 4 shows a side view of a modified form of the hydraulic excavator. In the Figures, corresponding parts are provided with the same reference numbers. Figure 1 shows the superstructure 1 of an hydraulic excavator with a boom comprising a lower boom section 2, an upper boom section 3 and a pivot link 4 arranged between the two. A digger bucket 5 is attached to an arm 6 at the extremity of the boom. Figures 2 and 3 show side views of the hydraulic excavator with the boom in different positions. The superstructure 1 is mounted to revolve about a vertical axis (not indicated) on a mobile chassis and it can be seen that the pivot link 4 provides a further axis 7, which is also vertical, about which the upper boom section 3 can pivot relative to the lower boom section 2. The lower boom section 2 is pivotally coupled to the superstructure 1 for movement in a vertical plane relative thereto, this movement being effected in the conventional manner by an hydraulic actuator connected between the lower boom sectionand the superstructure. At its outer end, the lower boom section 2 is pivotally connection to the pivot link 4. A spacer member 8 is also pivotally connected between the pivot link 4 and the superstructure 1, parallel to lower boom section 2. These parts 8 and 2 together constitute a guiding arrangement for the link 4 to ensure, as the lower boom section 2 is raised (Fig. 2) or lowered (Fig. 3), that the pivot axis 7 remains vertical. It will be apparent from Figs. 1 to 3 that, by turning the superstructure 1 relative to the chassis and pivoting the upper boom section 3 about the axis 7, the bucket 5 can be positioned to dig a trench to one side of the chassis. By raising or lowering the lower boom section 2, different trench floor depths can be achieved. Figure 4 illustrates an alternative arrangement in which the constant spacer member 8 of Figs. 1 to 3 is replaced by a variable-length member, e.g. by a hydraulic cylinder 9. It is thereby possible to displace the axis 7 of the link 4 selectably out of the perpendicular and, as a result, the working radius of the excavator equipment can be extended. In particular, it is possible with such an arrangement to bring the digger bucket 5 to a comparatively high level for emptying, as indicated by the position shown in broken lines in the Figure. Claims
1. Hydraulic excavator equipment for working in a plane to one side of the excavator chassis comprising a superstructure rotatable about a vertical axis relatiive to the chassis and carrying a boom comprising a lower boom section and an upper boom section interconnected by a link providing a pivot axis which is located in a vertical plane and about which the upper boom section is pivotally movable relative to the lower boom section.
2. Hydraulic excavator equipment according to Claim 1, in which the link is connected to the super-structure by parallel guiding means.
3. Hydraulic excavator equipment according to Claim 2 in which the parallel guiding means includes a spacer member connected parallel to the lower boom section between the link and the superstructure.
4. Hydraulic excavator equipment according to Claim 3, in which the length of the spacer member is adjustable.
5. Hydraulic excavator equipment according to Claim 4, in which the spacer member is an hydraulic cylinder.
6. A method of operating excavator equipment according to Claim 1, in which the pivot axis is held so that it is maintained in a vertical position.
7. A method of operating excavator equipment according to Claim 4, in which the working radius of the boom is extended by altering the length of the spacer member.
8. A method as claimed in claim 7 or claim 8, substantially as described herein with reference to the accompanying drawings.
9. Hydraulic excavator equipment substantially as described herein with reference to, and as shown in, Figs. 1 to 3 or Fig. 4 of the accompanying drawings.
GB08324345A 1982-09-14 1983-09-12 Hydraulic excavator equipment Withdrawn GB2126982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823234019 DE3234019A1 (en) 1982-09-14 1982-09-14 HYDRAULIC EXCAVATOR EQUIPMENT

Publications (2)

Publication Number Publication Date
GB8324345D0 GB8324345D0 (en) 1983-10-12
GB2126982A true GB2126982A (en) 1984-04-04

Family

ID=6173166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08324345A Withdrawn GB2126982A (en) 1982-09-14 1983-09-12 Hydraulic excavator equipment

Country Status (5)

Country Link
JP (1) JPS5965129A (en)
DE (1) DE3234019A1 (en)
FR (1) FR2532970A1 (en)
GB (1) GB2126982A (en)
IT (1) IT1170470B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157648A (en) * 1984-04-18 1985-10-30 Takeuchi Mfg Excavator
EP0176829A1 (en) * 1984-10-01 1986-04-09 MACMOTER S.p.A. Compact excavator
WO1996036775A1 (en) * 1995-05-19 1996-11-21 Wolfgang Schmidt Excavator extension arm arrangement
GB2350830A (en) * 1999-06-09 2000-12-13 Colin Fraser Mckay Parallel arm arrangement for back-hoe type diggers
WO2003066981A2 (en) * 2002-02-07 2003-08-14 Dingenis Laurens Huissoon Mobile apparatus for earth moving and other operations such as lifting and displacing of loads
WO2007009207A1 (en) * 2005-07-22 2007-01-25 Frey Industries Limited Loader boom arm
DE102005036935A1 (en) * 2005-08-05 2007-02-08 Deere & Company, Moline Loading arm for a loading unit comprises a front element which is located on the arm and is rotatable relative to this arm
US7354237B2 (en) 2005-07-22 2008-04-08 Frey Industries Limited Loader boom arm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602213A1 (en) * 1986-01-25 1987-07-30 Hugo Dipl Ing Cordes Multi-purpose apparatus for hydraulic excavators and cranes
DE3843753A1 (en) * 1988-12-24 1990-06-28 Schaeff Karl Gmbh & Co EXCAVATOR ARM
DE4109783C2 (en) * 1990-03-23 1998-04-09 Hilton S Enterprises Inc Pty L Quick coupling device for a device for carrying out earth movements
US5400531A (en) * 1992-08-20 1995-03-28 Brown; Hilton T. Excavator device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054382A (en) * 1964-08-19
GB1222702A (en) * 1967-03-09 1971-02-17 Hinrich Weyhausen Improvements in or relating to excavators
GB1231654A (en) * 1967-06-21 1971-05-12
GB1383638A (en) * 1972-08-24 1974-02-12 Cranes Shovels Pty Ltd Excavator
GB2015963A (en) * 1978-02-07 1979-09-19 Hymac Ltd Hydraulic excavator
GB2086347A (en) * 1980-11-04 1982-05-12 Vema Spa Articulated arm for excavator machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1603020A (en) * 1968-05-20 1971-03-15
FR2175661B1 (en) * 1972-03-17 1974-08-02 Pingon Pierre Joseph
IT1057824B (en) * 1976-03-31 1982-03-30 Simit Spa LATERAL EXCAVATION EQUIPMENT BY HYDRAULIC EXCAVATORS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1054382A (en) * 1964-08-19
GB1222702A (en) * 1967-03-09 1971-02-17 Hinrich Weyhausen Improvements in or relating to excavators
GB1231654A (en) * 1967-06-21 1971-05-12
GB1383638A (en) * 1972-08-24 1974-02-12 Cranes Shovels Pty Ltd Excavator
GB2015963A (en) * 1978-02-07 1979-09-19 Hymac Ltd Hydraulic excavator
GB2086347A (en) * 1980-11-04 1982-05-12 Vema Spa Articulated arm for excavator machines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157648A (en) * 1984-04-18 1985-10-30 Takeuchi Mfg Excavator
EP0176829A1 (en) * 1984-10-01 1986-04-09 MACMOTER S.p.A. Compact excavator
US4693662A (en) * 1984-10-01 1987-09-15 Macmoter S.P.A Compact excavator
WO1996036775A1 (en) * 1995-05-19 1996-11-21 Wolfgang Schmidt Excavator extension arm arrangement
GB2350830A (en) * 1999-06-09 2000-12-13 Colin Fraser Mckay Parallel arm arrangement for back-hoe type diggers
NL1019918C2 (en) * 2002-02-07 2003-08-21 Dingenis Laurens Huissoon Mobile device for earthmoving and other activities, such as lifting and moving loads.
WO2003066981A2 (en) * 2002-02-07 2003-08-14 Dingenis Laurens Huissoon Mobile apparatus for earth moving and other operations such as lifting and displacing of loads
WO2003066981A3 (en) * 2002-02-07 2004-07-29 Dingenis Laurens Huissoon Mobile apparatus for earth moving and other operations such as lifting and displacing of loads
US7287949B2 (en) 2002-02-07 2007-10-30 Dingenis Laurens Huissoon Mobile apparatus for earth moving and other operations such as lifting and displacing of loads
WO2007009207A1 (en) * 2005-07-22 2007-01-25 Frey Industries Limited Loader boom arm
US7354237B2 (en) 2005-07-22 2008-04-08 Frey Industries Limited Loader boom arm
US7568878B2 (en) 2005-07-22 2009-08-04 Frey Industries Limited Loader boom arm
DE102005036935A1 (en) * 2005-08-05 2007-02-08 Deere & Company, Moline Loading arm for a loading unit comprises a front element which is located on the arm and is rotatable relative to this arm

Also Published As

Publication number Publication date
JPS5965129A (en) 1984-04-13
FR2532970A1 (en) 1984-03-16
IT1170470B (en) 1987-06-03
DE3234019A1 (en) 1984-03-15
IT8348934A0 (en) 1983-09-06
GB8324345D0 (en) 1983-10-12

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