WO2012016251A1 - Système de pièce d'usure - Google Patents

Système de pièce d'usure Download PDF

Info

Publication number
WO2012016251A1
WO2012016251A1 PCT/ZA2011/000042 ZA2011000042W WO2012016251A1 WO 2012016251 A1 WO2012016251 A1 WO 2012016251A1 ZA 2011000042 W ZA2011000042 W ZA 2011000042W WO 2012016251 A1 WO2012016251 A1 WO 2012016251A1
Authority
WO
WIPO (PCT)
Prior art keywords
adaptor
wear
wear part
connector
passage
Prior art date
Application number
PCT/ZA2011/000042
Other languages
English (en)
Inventor
Krzysztof Ludwik Troszczynski
Original Assignee
Krzysztof Ludwik Troszczynski
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 Krzysztof Ludwik Troszczynski filed Critical Krzysztof Ludwik Troszczynski
Publication of WO2012016251A1 publication Critical patent/WO2012016251A1/fr

Links

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
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2825—Mountings therefor using adapters
    • 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
    • E02F9/2808—Teeth
    • E02F9/2816—Mountings therefor
    • E02F9/2833—Retaining means, e.g. pins
    • E02F9/2841—Retaining means, e.g. pins resilient
    • 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

Definitions

  • This invention relates to a wear part system for earth moving machinery and, more particularly, to a wear part system for portions of machinery that experience a high degree of wear during use thereof.
  • Heavy machinery such as excavators and front end loaders are used in the mining and building industries for displacing heavy loads of material such as sand, gravel, and rock. Most of these materials are abrasive and the wear experienced by the portions of the machinery directly exposed thereto is significant. Heels and leading and side edges of buckets of front end loaders and teeth of excavators in particular become damaged during use and require replacement.
  • the inventor therefore believes that a need exists for providing a wear part system for portions of equipment exposed to a high degree of wear during use which system overcomes at least some of the disadvantages of existing wear part systems.
  • a wear part system including:-
  • an adaptor configured and dimensioned to be attached to a portion of a piece of equipment which experiences high wear in use, the adaptor including a passage extending between two opposed sides thereof; and l - a wear part configured and dimensioned to be fitted over the adaptor, the wear part including a passage extending between two opposed sides thereof and which passage is aligned in register with the passage of the adaptor when the wear part is fitted over the adaptor; wherein, in use, the adaptor and wear part are connected to each other by insertion of a connector through their respective passages.
  • the adaptor may be attached to a portion of a piece of equipment selected from the group including: a lip and/ or sidewall of an excavator; a lip and/ or sidewall of a front end loader; a lip and/ or sidewall of load haul dumper bucket; and a lip of an excavator bucket (i.e. between adjacent teeth).
  • the adaptor may be attached to the lip/sidewall by means of welding or by using one or more mechanical fasteners such as bolts.
  • the wear part may include a receiving formation that is complementary in shape and dimensions to a substantial portion of the adaptor so that the wear part can be slideably fitted over the adaptor to achieve a snug fit.
  • the adaptor may be provided with a plurality of wear plates.
  • Each wear plate may be located in a recessed portion defined in an exterior surface of the adaptor.
  • the wear plate may rest on a support sheet manufactured from resiliently deformable material such as rubber.
  • the wear plate may be manufactured from a metal alloy that is harder than the material from which the adaptor is manufactured.
  • the thickness of the support sheet and wear plate may be selected so that the wear plate may stand proud of the exterior surface of the adaptor when not in use; i.e. when no wear part is attached to the adaptor.
  • the wear plate When the wear part is fitted over the adaptor, the wear plate may be pushed against the support sheet which in turn becomes compressed so that the wear plate comes to rest flush with the exterior surface of the adaptor.
  • the wear plates may aid in reducing wear of the exterior surface of the adaptor occasioned by removal and replacement of wear parts and may make allowance for tolerances in the dimensions of the wear part, i.e. the dimensions of the receiving portion of the wear part do not need to conform precisely to the dimensions of the adaptor.
  • the adaptor may include a base plate and one or more raised portions extending from the base plate at which the adaptor may in use be attached to a heel region of an excavator, front loader, or load haul dumper bucket by, for example, welding.
  • the wear part may include a first recess of complementary shape and dimensions to the base plate for slideably receiving the base plate therein.
  • the wear part may further include a second recess for receiving one of said raised portions therein to form a snug fit between the wear part and the adaptor.
  • the exterior shape of the wear part may vary depending on the portion of the piece of equipment to which it is to be applied.
  • the wear part may taper from a first end region towards a second end region which in use forms a leading edge of an excavator or front end loader bucket.
  • the wear part may be in the shape of a tooth of an excavator or a portion of a heel of an excavator bucket.
  • the connector may be a two-part connector wherein a first part may be located in a recess of the adaptor arranged so that a portion of said first part extends into the passage of the adaptor.
  • the first part may be manufactured from a resiliently deformable material such as rubber.
  • the portion of the first part that in use extends into the passage of the adaptor may be provided with engaging formations in the form of spaced apart ribs or teeth.
  • the ribs or teeth may be manufactured from a metal alloy such as, for example steel.
  • the engaging formations may be in the form of spaced apart rollers that are countersunk into a body portion of the first part during casting of the part and which in use extend into the passage of the adaptor.
  • the first part of the connector may be formed integrally with the adaptor.
  • a second part of the connector may include an elongate body portion with engaging formations in the form of spaced apart ribs or teeth located along a central region thereof.
  • the second part may be manufactured from a steel alloy.
  • the second part of the connector is forced into the aligned passages of the adaptor and wear part so that its engaging formations engage those of the first part of the connector, thereby connecting the wear part and adaptor.
  • the ribs or teeth of the first part of the connector present contact points for the second part of the connector which accordingly does not come into contact with the body portion of the first part.
  • the resiliently deformable body portion of the first part in use pushes the ribs or teeth against the second part of the connector, thereby retaining the first and second parts in tight engagement.
  • the dimensions of the passages and the first and second parts of the connector are such that a tight fit is achieved when the second part of the connector is forced into the aligned passages.
  • the second part of the connector is forced out of the aligned passages using suitable tools such as, for example, a hammer, after which the wear part can be removed from the adaptor.
  • suitable tools such as, for example, a hammer, after which the wear part can be removed from the adaptor.
  • the adaptor may require replacement after having accommodated four or more wear parts that have successively been replaced.
  • the adaptor may be released from the piece of equipment by breaking the weld.
  • Figure 1 shows a three-dimensional view of a first embodiment of an adaptor in accordance with the present invention
  • Figure 2 shows a three-dimensional view of an embodiment of a wear part in accordance with the present invention when connected to an adaptor as shown in Figure 1 ;
  • Figure 3 shows a front view of the wear part of Figure 2
  • Figure 4A shows a sectioned side view along lines A-A in Figure 2 of the wear part when connected to the adaptor;
  • Figure 4B shows a sectioned top view along lines B-B in Figure 2 of the wear part when connected to the adaptor;
  • Figure 5 shows a three-dimensional view of a second embodiment of an adaptor in accordance with the present invention.
  • Figure 6 shows a three-dimensional view of a second embodiment of a wear part in accordance with the present invention.
  • Figure 7 shows a sectioned side view of a second embodiment of an assembled wear part system in accordance with the present invention showing the adaptor of Figure 5 and the wear part of Figure 6;
  • Figure 8 shows a first part of a connector of the wear part system
  • Figure 9 shows a second part of a connector of the wear part system.
  • a wear part system 10 generally indicates an embodiment of a wear part system in accordance with the present invention.
  • a wear part system 10 includes an adaptor 12 configured and dimensioned to be attached to a portion of a piece of equipment (not shown) which experiences high wear in use, the adaptor 12 including a passage 16 extending between two opposed sides thereof.
  • a wear part 18 of the system 10 is configured and dimensioned to be fitted over the adaptor 12.
  • the wear part 18 includes a passage 20 extending between two opposed sides thereof and which passage 20 is aligned in register with the passage 16 of the adaptor 12 when the wear part 18 is fitted over the adaptor 12 as can best be seen in Figures 4B and 7.
  • the wear part system 10 further includes a connector having two parts shown in Figures 4A, 4B, 8 and 9 for connecting the adaptor 12 and wear part 18 by insertion thereof through the passages 16 and 20 of the adaptor 12 and wear part 18.
  • the adaptor 12 and wear part 18 are connected to each other by insertion of the connector through their respective passages 16 and 20.
  • the adaptor 12 is attached to a portion of a piece of equipment selected from the group including: a lip and/ or sidewall of an excavator; a lip and/ or sidewall of a front end loader; a lip and/ or sidewall of load haul dumper bucket; and a lip of an excavator bucket (i.e. between adjacent teeth). Attachment of the adaptor 12 to the portion of the piece of equipment is typically by means of welds.
  • the wear part 18 includes a receiving formation 22 that is complementary in shape and dimensions to a substantial portion of the adaptor 12 so that the wear part 18 can be slideably fitted over the adaptor 12 to achieve a snug fit as can best be seen in Figure 4B.
  • the wear part 18 further includes a receiving formation 24 for receiving a portion of the piece of equipment therein.
  • the adaptor 12 includes a base plate 34 and two raised portions 36.1 and 36.2 extending from the base plate 34 at which the adaptor 12 is in use welded to a heel region of an excavator bucket.
  • the wear part 18 includes a first recess 38 of complementary shape and dimensions to the base plate 34 for slideably receiving the base plate 34 therein.
  • the wear part 18 further includes a second recess 40 for receiving raised portion 36.2 therein, thereby forming a snug fit between the wear part 18 of Figure 6 and the adaptor 12 of Figure 5.
  • the exterior shape of the wear part 18 can be varied as desired depending on the portion of the piece of equipment to which it is to be applied.
  • the wear part 18 in Figures 2 to 4 tapers from a first end region towards a second end region which in use forms a leading edge of an excavator or front end loader bucket.
  • the wear part 18 of Figure 6 is typically used as a wear part for a heel of an excavator bucket.
  • the connector (shown on its own in Figures 8 and 9) is a two-part connector wherein a first part 44 is located in a recess 46 of the adaptor 12 so that a portion of said first part extends into the passage 16 of the adaptor 12.
  • the first part 44 is manufactured from a resiliently deformable material such as rubber.
  • the portion of the first part 44 that in use extends into the passage of the adaptor is provided with engaging formations in the form of spaced apart ribs 48.
  • the ribs 48 are manufactured from steel.
  • the ribs 48 are rollers that are countersunk into a body portion 50 of the first part 44 during casting of the first part 44 and which in use extend into the passage 16 of the adaptor 12 as shown in Figure 4B. It is to be appreciated, that the ribs 48 need not necessarily be in the form of rollers and could be another suitable shape.
  • a second part 52 of the connector includes an elongate body portion 54 with engaging formations in the form of spaced apart ribs 56 located along a central region thereof.
  • the second part 52 is manufactured from a steel alloy.
  • the dimensions of the passages 16 and 20 and the first and second parts 44 and 52 of the connector are such that a tight fit is achieved when the second part 52 of the connector is forced into the aligned passages 16 and 20.
  • the second part 52 of the connector is forced out of the aligned passages 16 and 20 using suitable tools after which the wear part 18 can be removed from the adaptor 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

L'invention porte sur un système de pièce d'usure 10 qui comprend un adaptateur 12 configuré et dimensionné pour être attaché à une partie d'une pièce d'équipement (non représentée) qui s'use de façon importante lors de son utilisation. L'adaptateur 12 comprend un passage 16 qui s'étend entre ses deux côtés opposés. Une pièce d'usure 18 du système 10 est configurée et dimensionnée pour être ajustée sur l'adaptateur 12. La pièce d'usure 18 comprend un passage 20 qui s'étend entre ses deux côtés opposés, ce passage 20 étant aligné avec le passage 16 de l'adaptateur 12 lorsque la pièce d'usure 18 est montée sur l'adaptateur 12.
PCT/ZA2011/000042 2010-07-26 2011-06-28 Système de pièce d'usure WO2012016251A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA201005304 2010-07-26
ZA2010/5304 2010-07-26

Publications (1)

Publication Number Publication Date
WO2012016251A1 true WO2012016251A1 (fr) 2012-02-02

Family

ID=45530519

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2011/000042 WO2012016251A1 (fr) 2010-07-26 2011-06-28 Système de pièce d'usure

Country Status (1)

Country Link
WO (1) WO2012016251A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9279231B2 (en) 2013-04-19 2016-03-08 Caterpillar Global Mining Llc Removable liner assembly for a dipper
WO2017044336A1 (fr) * 2015-09-10 2017-03-16 Caterpillar Inc. Système de retenue de carénage pour outil de travail
US10883257B2 (en) 2018-11-06 2021-01-05 Caterpillar Inc. Shroud retention system for a work tool
USD922447S1 (en) 2018-11-06 2021-06-15 Caterpillar Inc. Retention component
US20220259837A1 (en) * 2021-02-17 2022-08-18 Black Cat Wear Parts, Ltd. Heel shroud for material moving implement and associated methods
US12018465B2 (en) * 2021-02-17 2024-06-25 Black Cat Wear Parts, Ltd. Heel shroud for material moving implement and associated methods

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126654A (en) * 1964-03-31 Locking device for excavating tooth
US4061432A (en) * 1976-04-22 1977-12-06 Esco Corporation Releasable lock for excavating tooth
DE3538156C1 (de) * 1985-10-26 1986-07-24 Hoesch Ag, 4600 Dortmund Baggerzahn
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system
WO2004029371A1 (fr) * 2002-09-30 2004-04-08 Cutting Edges Pty Ltd Accouplement de composants
US20050274047A1 (en) * 2004-05-28 2005-12-15 Trn Business Trust System and method for coupling excavation equipment components
WO2007027639A2 (fr) * 2005-08-30 2007-03-08 Esco Corporation Assemblage d'usure pour des machines excavatrices
US20080005940A1 (en) * 2006-07-10 2008-01-10 Esco Corporation Assembly for securing a wear
EP1997967A1 (fr) * 2007-06-01 2008-12-03 IHC Holland IE B.V. Système de dent
AU2010100656A4 (en) * 2009-06-24 2010-07-29 Mark Allan Coleman A wear assembly for an excavator bucket

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126654A (en) * 1964-03-31 Locking device for excavating tooth
US4061432A (en) * 1976-04-22 1977-12-06 Esco Corporation Releasable lock for excavating tooth
DE3538156C1 (de) * 1985-10-26 1986-07-24 Hoesch Ag, 4600 Dortmund Baggerzahn
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system
WO2004029371A1 (fr) * 2002-09-30 2004-04-08 Cutting Edges Pty Ltd Accouplement de composants
US20050274047A1 (en) * 2004-05-28 2005-12-15 Trn Business Trust System and method for coupling excavation equipment components
WO2007027639A2 (fr) * 2005-08-30 2007-03-08 Esco Corporation Assemblage d'usure pour des machines excavatrices
US20080005940A1 (en) * 2006-07-10 2008-01-10 Esco Corporation Assembly for securing a wear
EP1997967A1 (fr) * 2007-06-01 2008-12-03 IHC Holland IE B.V. Système de dent
AU2010100656A4 (en) * 2009-06-24 2010-07-29 Mark Allan Coleman A wear assembly for an excavator bucket

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9279231B2 (en) 2013-04-19 2016-03-08 Caterpillar Global Mining Llc Removable liner assembly for a dipper
WO2017044336A1 (fr) * 2015-09-10 2017-03-16 Caterpillar Inc. Système de retenue de carénage pour outil de travail
US9909285B2 (en) 2015-09-10 2018-03-06 Caterpillar Inc. Shroud retention system for a work tool
AU2016318443B2 (en) * 2015-09-10 2021-10-28 Caterpillar Inc. Shroud retention system for a work tool
US10883257B2 (en) 2018-11-06 2021-01-05 Caterpillar Inc. Shroud retention system for a work tool
USD922447S1 (en) 2018-11-06 2021-06-15 Caterpillar Inc. Retention component
USD933719S1 (en) 2018-11-06 2021-10-19 Caterpillar Inc. Retention component
US11952751B2 (en) 2018-11-06 2024-04-09 Caterpillar Inc. Shroud retention system for a work tool
US20220259837A1 (en) * 2021-02-17 2022-08-18 Black Cat Wear Parts, Ltd. Heel shroud for material moving implement and associated methods
US12018465B2 (en) * 2021-02-17 2024-06-25 Black Cat Wear Parts, Ltd. Heel shroud for material moving implement and associated methods

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