EP4015710A1 - Eckhalbpfeil für einen eimer - Google Patents

Eckhalbpfeil für einen eimer Download PDF

Info

Publication number
EP4015710A1
EP4015710A1 EP20215738.4A EP20215738A EP4015710A1 EP 4015710 A1 EP4015710 A1 EP 4015710A1 EP 20215738 A EP20215738 A EP 20215738A EP 4015710 A1 EP4015710 A1 EP 4015710A1
Authority
EP
European Patent Office
Prior art keywords
half arrow
corner
lip
bucket
arrow
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.)
Pending
Application number
EP20215738.4A
Other languages
English (en)
French (fr)
Inventor
Ilkka HYVÖNEN
Bruce KNOWLES
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.)
Sandvik Mining and Construction Australia Production Supply Pty Ltd
Original Assignee
Sandvik Mining and Construction Australia Production Supply Pty 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 Sandvik Mining and Construction Australia Production Supply Pty Ltd filed Critical Sandvik Mining and Construction Australia Production Supply Pty Ltd
Priority to EP20215738.4A priority Critical patent/EP4015710A1/de
Priority to PCT/AU2021/051516 priority patent/WO2022126201A1/en
Priority to AU2021404413A priority patent/AU2021404413A1/en
Priority to CN202180085657.0A priority patent/CN117120691A/zh
Priority to CA3202662A priority patent/CA3202662A1/en
Publication of EP4015710A1 publication Critical patent/EP4015710A1/de
Pending legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
    • E02F9/2883—Wear elements for buckets or implements in general
    • 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

Definitions

  • the present invention relates to improvements to wear parts for a bucket for earthmoving equipment.
  • the present invention has been created in relation to buckets used by earthmoving equipment and to wear parts/ground engaging tools connected to such buckets.
  • GET Ground engaging tools
  • earth-moving equipment such as those used in mining operations
  • GET operate in a highly abrasive environment
  • GET are subjected to high impact forces and therefore wear out or become damaged through use.
  • GET such as teeth used on the front lip or edges of a bucket of the earth moving equipment, therefore require regular replacement.
  • GETs are welded onto the lips of buckets. When the GET come to the end of their useful life, they can be cut from the bucket, and new GET welded in their place.
  • a known bucket and associated ground engaging tool are disclosed in AU2013311372B .
  • Another known ground engaging tool of bolt-on type is disclosed in US3029534A .
  • DE1952397U and U4044481A both relate to technology for a ground engaging tool for bucket corners.
  • the new corner half arrow may subsequently be attached to the lip by welding or by a connection system (not shown in the illustrated embodiments).
  • the increased rearward extent of the corner half arrow enables prolonged use without availing the corner lip portion for destructive wear of the lip of the bucket. This is turn enables the corner half arrow to reach its end-of-life at the same time as the intermediate half arrows reach their end-of-life.
  • the corner half arrows often wear out before the intermediate half arrows wear out. Accordingly, the claimed corner half arrow is advantageous in that it mitigates damages to the corner lip portions of the bucket caused by operators continuing use of the bucket despite the corner half arrows being worn out.
  • the claimed design of the corner half arrow provides this whilst allowing for unchanged front geometry of the front wear portion of the corner half arrow, such that the bucket can handle and function as normal with no difference to the operator of the bucket as compared to when using prior art corner half arrows.
  • the corner half arrow also works as an upgrade for existing buckets with straight left and right lips by removal of material as described above, which can be done by field workers with basic tools. Since the intermediate half arrows wear out about the same time as the new design corner half arrow, fewer production stops need be made for maintenance of individual intermediate half arrows or corner half arrows, effectively increasing availability of the bucket over time.
  • the first angle may be within the range of 95-120 degrees, such as within 100-105 degrees, or such as 100 degrees.
  • corner half arrow portion according to any one of the preceding claims, further comprising a bottom support portion extending from a bottom of the corner half arrow and rearwards of the back portion, thereby forming a shelf for receiving the lip of the bucket.
  • the side wear portion may extend from the front wear portion and rearwards of the back portion.
  • a central portion of the shelf may comprise a central recess for facing a bottom of the lip.
  • the above-mentioned object is enabled by a first half arrow kit comprising the above-described corner half arrow and the intermediate half arrow.
  • the intermediate half arrow comprises a front wear portion, a first side portion for facing the corner half arrow, a second side portion facing away from the corner half arrow, and a back portion for attachment to the lip of the bucket, wherein the side portion and the back portion extend perpendicular to each other.
  • the side portion and the back portion of the intermediate half arrow extends perpendicular to each other, the side portion of the intermediate half arrow will extend perpendicular to the lip of the bucket when attached to the lip.
  • the back portion of the corner half arrow will extend obliquely rearward from the intermediate half arrow.
  • the back portion of the intermediate half arrow extends along a fifth longitudinal axis, and the back portion of the corner half arrow is configured to extend from the inner side portion obliquely rearwards away from the fifth longitudinal axis when the corner half arrow and the intermediate half arrow are installed adjacent each other.
  • the claimed design of the corner half arrow provides this whilst allowing for unchanged front geometry of the front wear portion of the corner half arrow, such that the bucket can handle and function as normal with no difference to the operator of the bucket as compared to when using prior art corner half arrows.
  • the corner half arrow also works as an upgrade for existing buckets with straight left and right lips by removal of material as described above, which can be done by field workers with basic tools. Since the intermediate half arrows wear out about the same time as the new design corner half arrow, fewer production stops need be made for maintenance of individual intermediate half arrows or corner half arrows, effectively increasing availability of the bucket over time.
  • the front wear portion of the intermediate half arrow of the second kit may extend parallel to the back portion of the intermediate half arrow.
  • the above-mentioned object is enabled by a system as defined in the appended claim 10 with an alternative embodiment defined in the dependent claim.
  • the system comprises a bucket either a corner half arrow according to any one of the above-described embodiments or the above described first or second half arrow kit.
  • a lip of the bucket comprises a central lip portion extending along a third longitudinal axis and a corner lip portion extending along a fourth longitudinal axis, wherein the fourth longitudinal axis extends at a second angle offset to the third longitudinal axis, wherein the second angle is configured such that the back portion of the corner half arrow aligns with the corner lip portion when the corner half arrow is attached to the lip of the bucket.
  • a first embodiment of the new corner half arrow 1 is shown in figs. 1-2 .
  • the corner half arrow 1 comprises a front wear portion 4, a side wear portion 5, a back portion 6 for attachment to the lip 2 of the bucket 3 and an inner side portion 7 for facing an adjacent intermediate half arrow 8.
  • the inner side portion 7 extends along a first longitudinal axis 9, and the back portion 6 extends along a second longitudinal axis 10.
  • the second longitudinal axis 10 forms a first angle 17 of more than 90 degrees to the first longitudinal axis 9.
  • the first angle 17 is 100 degrees, but could in other embodiments be chosen otherwise, such as in the range of 95-120 degrees or 100-105 degrees, as appropriate.
  • the side wear portion 5 extends from the front wear portion 4 and rearwards of the back portion 6 extending along the lip 2. In other embodiments, the side wear portion 5 could alternatively extend only to the back portion 6. Further, the side wear portion 5 is connected to the bottom support portion 15. In this embodiment, the corner half arrow 1 is molded in one piece, including the connection between the bottom support portion 15 and side wear portion 5 but any other suitable manufacturing method may be used instead.
  • a central portion of the shelf comprises a central recess for facing a bottom of the lip 2.
  • the central recess is visible once the front wear portion is worn out and thus provides a visual indicator for wear.
  • the central recess may alternatively have other shapes or be omitted.
  • corner half portion is provided with a
  • the corner half arrow 1 may be provided as part of a kit comprising both the above-described corner half arrow 1 and the above referenced intermediate half arrow 8.
  • the intermediate half arrow 8 comprises a front wear portion, a first side portion for facing the corner half arrow 1, a second side portion facing away from the corner half arrow 1, and a back portion for attachment to the lip 2 of the bucket 1, wherein the side portion and the back portion extend perpendicular to each other as shown in fig. 2 .
  • the half arrow kit comprises a corner half arrow 1 for a lip 2 of a bucket 3, and comprising an intermediate half arrow for attachment to said lip 2 adjacent the corner half arrow 1, wherein the corner half arrow 1 comprises a front wear portion 4, a side wear portion 5, a back portion 6 for attachment to the lip 2 of the bucket 3 and an inner side portion 7 for facing the intermediate half arrow 8.
  • the intermediate half arrow 8 comprises a front wear portion, a first side portion for facing the corner half arrow 1, and a back portion for attachment to the lip.
  • the back portion of the intermediate half arrow 8 extends along a fifth longitudinal axis 16, and the back portion 6 of the corner half arrow is configured to extend from the inner side portion 7 obliquely rearwards away from the fifth longitudinal axis 16 when the corner half arrow 1 and the intermediate half arrow 8 are installed adjacent each other.
  • the front wear portion of the intermediate half arrow 8 extends parallel to the back portion of the intermediate half arrow 8 but could in other embodiments alternatively extend obliquely to the back portion of the intermediate half arrow 8.
  • a lip 2 of the bucket comprises a central lip portion 11 (shown with dash-dotted lines in fig. 2 ) extending along a third longitudinal axis 12 and a corner lip portion 13 (shown with dashed lines in fig. 2 ) extending along a fourth longitudinal axis 14.
  • the fourth longitudinal axis 14 extends at a second angle 18 offset to the third longitudinal axis 12.
  • the second angle 18 is configured such that the back portion 6 of the corner half arrow 1 aligns with the corner lip portion 13 when the corner half arrow 1 is attached to the lip 2 of the bucket.
  • the herein described half arrows are designed to be attached to the lip 2 by welding but they could alternatively be redesigned to be attached by a mechanical connection system releasably holding the GET to the bucket (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Connection Of Plates (AREA)
EP20215738.4A 2020-12-18 2020-12-18 Eckhalbpfeil für einen eimer Pending EP4015710A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20215738.4A EP4015710A1 (de) 2020-12-18 2020-12-18 Eckhalbpfeil für einen eimer
PCT/AU2021/051516 WO2022126201A1 (en) 2020-12-18 2021-12-17 Corner half arrow for a bucket
AU2021404413A AU2021404413A1 (en) 2020-12-18 2021-12-17 Corner half arrow for a bucket
CN202180085657.0A CN117120691A (zh) 2020-12-18 2021-12-17 用于铲斗的角部半箭头
CA3202662A CA3202662A1 (en) 2020-12-18 2021-12-17 Corner half arrow for a bucket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20215738.4A EP4015710A1 (de) 2020-12-18 2020-12-18 Eckhalbpfeil für einen eimer

Publications (1)

Publication Number Publication Date
EP4015710A1 true EP4015710A1 (de) 2022-06-22

Family

ID=73855956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20215738.4A Pending EP4015710A1 (de) 2020-12-18 2020-12-18 Eckhalbpfeil für einen eimer

Country Status (5)

Country Link
EP (1) EP4015710A1 (de)
CN (1) CN117120691A (de)
AU (1) AU2021404413A1 (de)
CA (1) CA3202662A1 (de)
WO (1) WO2022126201A1 (de)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029534A (en) 1960-05-23 1962-04-17 Rakisits Michael Bulldozer moldboard corner bit
DE1952397U (de) 1966-09-01 1966-12-22 Guenter Lehnhoff Eckverstaerkungsvorrichtung fuer schaufelmesser.
GB1333480A (en) * 1971-12-20 1973-10-10 Caterpillar Tractor Co Router bit for scraper bowl
JPS5469601U (de) * 1978-07-25 1979-05-17
US5016365A (en) * 1989-06-06 1991-05-21 Gh Hensley Industries, Inc. Wear parts for excavation apparatus
JP2001254383A (ja) * 2000-03-09 2001-09-21 Echigo Shoji Kk 掘削用機械のバケット体に付設される刃体
US20070212207A1 (en) * 2006-03-10 2007-09-13 Deere & Company Bolt-on spill guard for buckets
US20070243053A1 (en) * 2006-04-14 2007-10-18 Babiarz Stacey A Bulk materials bagger and method
WO2007129947A1 (en) * 2006-05-05 2007-11-15 Atlas Copco Rock Drills Ab Device in a part of a mining or construction vehicle including a wear protection structure and a part including such a device.
WO2016130135A1 (en) * 2015-02-13 2016-08-18 Black Cat Blades Ltd. Wear members for excavation implements
AU2013311372B2 (en) 2012-09-04 2017-03-30 Sandvik Intellectual Property Ab Bucket corner, ground engaging tool and mutual mechanical attachment thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7266914B2 (en) * 2001-10-09 2007-09-11 Peninsula Alloy Inc. Wear plate assembly
SE533207C2 (sv) * 2007-12-21 2010-07-20 Atlas Copco Rock Drills Ab Slitdel till en skopa för en last-eller grävmaskin,fästenhet där för jämte slitdelssystem, skopa och last-eller grävmaskin

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029534A (en) 1960-05-23 1962-04-17 Rakisits Michael Bulldozer moldboard corner bit
DE1952397U (de) 1966-09-01 1966-12-22 Guenter Lehnhoff Eckverstaerkungsvorrichtung fuer schaufelmesser.
GB1333480A (en) * 1971-12-20 1973-10-10 Caterpillar Tractor Co Router bit for scraper bowl
JPS5469601U (de) * 1978-07-25 1979-05-17
US5016365A (en) * 1989-06-06 1991-05-21 Gh Hensley Industries, Inc. Wear parts for excavation apparatus
JP2001254383A (ja) * 2000-03-09 2001-09-21 Echigo Shoji Kk 掘削用機械のバケット体に付設される刃体
US20070212207A1 (en) * 2006-03-10 2007-09-13 Deere & Company Bolt-on spill guard for buckets
US20070243053A1 (en) * 2006-04-14 2007-10-18 Babiarz Stacey A Bulk materials bagger and method
WO2007129947A1 (en) * 2006-05-05 2007-11-15 Atlas Copco Rock Drills Ab Device in a part of a mining or construction vehicle including a wear protection structure and a part including such a device.
AU2013311372B2 (en) 2012-09-04 2017-03-30 Sandvik Intellectual Property Ab Bucket corner, ground engaging tool and mutual mechanical attachment thereof
WO2016130135A1 (en) * 2015-02-13 2016-08-18 Black Cat Blades Ltd. Wear members for excavation implements

Also Published As

Publication number Publication date
WO2022126201A1 (en) 2022-06-23
CN117120691A (zh) 2023-11-24
CA3202662A1 (en) 2022-06-23
AU2021404413A9 (en) 2024-02-08
AU2021404413A1 (en) 2023-07-13

Similar Documents

Publication Publication Date Title
US3851413A (en) Quick change cutting edge
CA3005731C (en) Improved reinforcement system for a tool adapter
US10590633B2 (en) Shroud collar for edge protection of a work tool
US8959806B2 (en) Rolled steel lip for an excavator bucket
CA2926805C (en) Bucket edge protection system
US10066371B2 (en) Wear plates
US8869910B2 (en) DCM circle shoe having angled wear insert
CN104080982A (zh) 耐磨垫片组件
EP4015710A1 (de) Eckhalbpfeil für einen eimer
US20170284073A1 (en) Fabricated wear member assembly attached to a work implement using a retaining mechanism
US10294632B2 (en) Bearing insert for a bearing arrangement
US11220806B2 (en) Corner wear plate assembly
CN111148880B (zh) 用于土方机械的铲斗唇
WO2021014164A1 (en) Excavation apparatus and method of manufacture and use thereof
EP4034713A1 (de) Austauschbarer korb für eine schaufel einer maschine
US20220389690A1 (en) Corner guard for a work implement assembly
CA2947852C (en) Replaceable wear member and replaceable wear member system
US20220372735A1 (en) Cast top cover for base edge wear protection
US9896824B2 (en) Ground engaging tool system
JP2002054171A (ja) 建設機械における作業用アタッチメント

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221222

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20230224

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230603