GB2462692A - Excavator dredging and demolition arm - Google Patents

Excavator dredging and demolition arm Download PDF

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Publication number
GB2462692A
GB2462692A GB0902010A GB0902010A GB2462692A GB 2462692 A GB2462692 A GB 2462692A GB 0902010 A GB0902010 A GB 0902010A GB 0902010 A GB0902010 A GB 0902010A GB 2462692 A GB2462692 A GB 2462692A
Authority
GB
United Kingdom
Prior art keywords
arm
extension arm
dipper
machine
dredging
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Withdrawn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
GB0902010A
Other versions
GB0902010D0 (en
Inventor
Peter John Fox
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB0902010D0 publication Critical patent/GB0902010D0/en
Publication of GB2462692A publication Critical patent/GB2462692A/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Withdrawn legal-status Critical Current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
    • E02F3/301—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
    • E02F3/302—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
    • E02F3/36—Component parts
    • E02F3/369—Devices to connect parts of a boom or an 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
    • E02F3/36—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

A long reach extension arm connects to an excavator arm by a quick hitch coupling, and is used for dredging and demolition applications. The angle of the hitch relative to the extension arm enables the arm to be used in a horizontal position allowing it to operate under overhanging objects such as tree bows. The extension arm can also be operated in a locked over fully extended position to the main dipper arm, wherein the quick hitch rests against a stop welded to the underside of the machine's dipper arm thereby preventing the crowd ram from reaching its full outward stroke and causing stress and damage to the ram components. The extension arm may be placed in a fully folded vertical position to give the machine excellent manoeuvrability in confined spaces. The position of a bucket at the end of the extension arm may be changed by moving a linkage between three pin locations.

Description

EXCAV,TOR DREIXIING AND DEMOLITION ARM
DBSN--
Rapid connecting long reach arm.
This arm has been designed for cleaning out silt and reeds from sides of ponds in places of confined o,eration but could be used in demolition applications, that would allow the operator to demolish items at a further working distance, with more safety to the operator and protection to the machine hydraulic components.
The arm is connected to the excavator by a quick hitch system that allows the machine to be used as a long arm [dredging demolition applications] then by the quick hitch release action a bucket can be fitted to machine for normal digging operation without the driver leaving his operating position.
With the arm quickly disconnected it is easy to lift with machine for transportation, unlike that of conventional long arm systems.
The main feature to this extension arm is the angle the hitch is mounted to the arm, this enables the arm to be used in a horizontal position allowing the arm to operate under overhanging objects such as tree bows etc, and giving excellent manoeuvrability of machine when in the fully folded position.
The extension arm can operate in a locked over fully extended position to the main machine dipper arm, This enables the machine to be used as normal boom and extended dipper operation.
When the arm is in the fully extended position the quick hitch rests against a stop welded to the underside of machine dipper arm, this prevents the crowd ram from reaching its full outward stroke that would cause stress and damage to the ram components.
In heavy dredging conditions an auxiliary button can be operated to the hydraulic circuit of the crowd ram to maintain the dipper arm lock up position, while maintaining smooth operation to boom and dipper movement.
Bucket crowd angle to the extension arm is changed by a three pin location to the bucket linkage for operating machine at different dredging levels. Shown in drawing 2/2 [Fig7] A hydraulic cylinder could be put in place for hydraulic bucket crowd movement to the extension arm for use in other applications.
Bucket linkages, ram rod lengths, rain cylinders fixation points and bucket quick hitches all vary in there dimensions on different excavators, mounting pin angles on the extension arm would need to be positioned correctly for different models of machines to obtain the maximum working movements of the arm and give correct clearance and protection to the hydraulic cylinder when the arm is locked over against its stop position.
Operating the extension arm from its fully extended position with the crowd ram, the arm can be moved into a horizontal position.{ low obstruction worki [further movement of the crowd ram will lift the arm up into a [compact manoeuvring position] The extension arm is made from 5mm plate with an 8mm base plate, gussets welded to the interior and plates on exterior points of stress make the arm strong and light in operation.
The extension arm is currently fitted to a Hitachi 12 ton excavator on 700mm wide track pads and has proven to be very sable and light in operation even when operating the arm at full reach transverse to the track undercarriage position.
Description to drawing 2/2
Fig I Dipper arm Fig2 Boom arm Fig 3 Extension arm Fig 4 shows working position in confined place, operating the movement of the boom, dipper and extension arm.
Fig 5 Shows a long reach working position operating movement of the boom Fig 2 and dipper Fig 1.
Maintaining a fixed position between dipper to extension arm Fig I and Fig 3.
Fig 6 shows operating in confined places a fully retracted position.
Fig 7 Shows a three pin position to give different bucket angles.
Fig 8 Shows stop plate
GB0902010A 2008-08-23 2009-02-06 Excavator dredging and demolition arm Withdrawn GB2462692A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0815503A GB0815503D0 (en) 2008-08-23 2008-08-23 Rapid fit extension arm

Publications (2)

Publication Number Publication Date
GB0902010D0 GB0902010D0 (en) 2009-03-11
GB2462692A true GB2462692A (en) 2010-02-24

Family

ID=39846800

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0815503A Ceased GB0815503D0 (en) 2008-08-23 2008-08-23 Rapid fit extension arm
GB0902010A Withdrawn GB2462692A (en) 2008-08-23 2009-02-06 Excavator dredging and demolition arm

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0815503A Ceased GB0815503D0 (en) 2008-08-23 2008-08-23 Rapid fit extension arm

Country Status (1)

Country Link
GB (2) GB0815503D0 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110129306A1 (en) * 2008-01-02 2011-06-02 Tullet Gj Excavation tool assembly
WO2016201685A1 (en) * 2015-06-18 2016-12-22 刘惠河 Dredging device
WO2023232330A1 (en) * 2022-06-03 2023-12-07 Winz Baggerarbeiten Gmbh Mobile hydraulic working machine comprising emergency stop valves, and method for controlling a mobile hydraulic working machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053809A (en) * 1963-05-02
JPH0431511A (en) * 1990-05-28 1992-02-03 Nkk Corp Reach-working machine of construction machinery
JPH09328772A (en) * 1996-06-10 1997-12-22 Kobelco Kenki Eng Kk Working device of working vehicle
GB2351312A (en) * 1999-04-23 2000-12-27 Mcgrattan Piling Ltd Extension arm, for an excavator boom, with attachment means for a pile driving hammer
JP2003096810A (en) * 2001-09-19 2003-04-03 Hitachi Constr Mach Co Ltd Offset boom type construction machinery
JP2004124466A (en) * 2002-10-01 2004-04-22 Yanmar Co Ltd Working machine
WO2007084384A2 (en) * 2006-01-13 2007-07-26 Ramun John R Modular system for connecting attachments to a construction machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053809A (en) * 1963-05-02
JPH0431511A (en) * 1990-05-28 1992-02-03 Nkk Corp Reach-working machine of construction machinery
JPH09328772A (en) * 1996-06-10 1997-12-22 Kobelco Kenki Eng Kk Working device of working vehicle
GB2351312A (en) * 1999-04-23 2000-12-27 Mcgrattan Piling Ltd Extension arm, for an excavator boom, with attachment means for a pile driving hammer
JP2003096810A (en) * 2001-09-19 2003-04-03 Hitachi Constr Mach Co Ltd Offset boom type construction machinery
JP2004124466A (en) * 2002-10-01 2004-04-22 Yanmar Co Ltd Working machine
WO2007084384A2 (en) * 2006-01-13 2007-07-26 Ramun John R Modular system for connecting attachments to a construction machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110129306A1 (en) * 2008-01-02 2011-06-02 Tullet Gj Excavation tool assembly
WO2016201685A1 (en) * 2015-06-18 2016-12-22 刘惠河 Dredging device
WO2023232330A1 (en) * 2022-06-03 2023-12-07 Winz Baggerarbeiten Gmbh Mobile hydraulic working machine comprising emergency stop valves, and method for controlling a mobile hydraulic working machine

Also Published As

Publication number Publication date
GB0815503D0 (en) 2008-10-01
GB0902010D0 (en) 2009-03-11

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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)