EP1174547A1 - Ensemble composé d'une dent et d'un adaptateur pour une excavatrice, comme une tête de coupe ou analogue - Google Patents

Ensemble composé d'une dent et d'un adaptateur pour une excavatrice, comme une tête de coupe ou analogue Download PDF

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Publication number
EP1174547A1
EP1174547A1 EP01202733A EP01202733A EP1174547A1 EP 1174547 A1 EP1174547 A1 EP 1174547A1 EP 01202733 A EP01202733 A EP 01202733A EP 01202733 A EP01202733 A EP 01202733A EP 1174547 A1 EP1174547 A1 EP 1174547A1
Authority
EP
European Patent Office
Prior art keywords
adapter
tooth
locking element
leg
parts
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.)
Granted
Application number
EP01202733A
Other languages
German (de)
English (en)
Other versions
EP1174547B1 (fr
Inventor
Roelof Breken
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.)
IHC Holland lE BV
Original Assignee
IHC Holland NV
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 IHC Holland NV filed Critical IHC Holland NV
Publication of EP1174547A1 publication Critical patent/EP1174547A1/fr
Application granted granted Critical
Publication of EP1174547B1 publication Critical patent/EP1174547B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F9/2833—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
    • E02F9/2808—Teeth
    • E02F9/2858—Teeth characterised by shape
    • 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
    • E02F9/2866—Small metalwork for digging elements, e.g. teeth scraper bits for rotating digging elements

Definitions

  • the invention relates to an assembly of a tooth and an adapter for application with an excavator, such as a cutter or the like, in which the tooth and the adapter have telescoping elements with substantially tapering surfaces and recesses for receiving a locking element are mounted in two contacting surfaces of said elements.
  • Such an assembly is known from EP-B-0182357 and is aimed at making it possible to replace a worn or damaged tooth instead of an entire cutter or similar machine part.
  • the planes of the mating elements are in abutment across almost their entire surfaces. This entails that narrow dimensional tolerances should be maintained in order to achieve that the tooth projects beyond the adapter across the desired distance.
  • the parts concerned are generally manufactured by casting or forging.
  • the cavity in the part to be slid on has a dimension which is slightly too small, sliding will cause difficulties because large frictional forces between the abutting planes will occur.
  • a dimension which is too large one will not achieve a tight connection between the tooth and the adapter. In both cases, the tooth will possibly not be in the desired position and thus be less effective.
  • the object of the invention is to remove these difficulties and to that end provides for, that at least one of two abutting planes of the tooth and/or the adapter has a curved surface as seen in the direction transverse to the sliding direction of the parts.
  • both abutting surfaces are designed with a curvature, in such a way that the centres of the radii of curvature of both parts are at the same side of the abutting surfaces and one radius of curvature is larger than the other, in such a way that initially the surfaces contact each other only according to a line.
  • the tooth When the assembly is executed in such a way, that the tooth has a pocket and is slid onto the adapter, the latter can be provided with wedge-shaped cams to facilitate removing a tooth from the adapter.
  • the adapter can be provided with cams for indicating the position where the tooth must be located on the adapter. Then, the tooth can be prevented from being slid onto the adapter too far.
  • a bent thread of spring steel is employed as locking element.
  • This has the difficulty, that the locking element only locally abuts the walls of the recesses in the surfaces concerned of the tooth and the adapter. Due to the open shape of the element, during operation of the device, sand and clay will collect and solidify there, even if the element will often be located largely under water. Removal of the element afterwards with replacement of a tooth may then cause difficulties. Namely, the element must be compressed slightly in order to be able to pass the relative small openings above or below the recess.
  • the present invention intends to provide an improvement, in that the locking element is assembled from two substantially L-shaped strips, with one set of legs thereof extending in parallel and being spaced apart with interposition of an elastic body, and the other legs fall around said elastic body and that in such a way that one leg lies on the other.
  • the mutually parallel legs of the strips largely abut the walls of the recesses in the tooth and the adapter. Since at the other side the legs abut the elastic body, they can be pressed towards one another to a degree sufficiently for moving the locking element into the recesses intended for it.
  • the free ends of the parallel legs of the strips will be bent in such a way, that across a certain distance they will lie closer to one another than where the major portion of the elastic body is located. Then, after mounting of the locking element, the parts being closer together will be pressed against the edges of the hole situated adjacent the recesses.
  • Enclosing of the locking element in the recesses can be improved in that the leg of the other strip lying on the leg of the one strip, through a bent portion, will continue into the other leg of the same strip. Said bent portion of the strip of the locking element will provide for that this strip will leave the hole positively when the locking element has largely passed the hole. The strip will then be pressed against the wall of the reces by the elastic element so that the locking element will no longer be able to perform a return movement.
  • the assembly illustrated in the Figures comprises the adapter 1 provided with a receiving portion 2 and a tooth 3 mounted on it, to that end being provided with a cavity 4.
  • the adapter 1 is releasably or otherwise connected to a part of the excavating machine, such as a cutter, for example.
  • the abutting walls of the receiving part 2 and of cavity 4 are tapered towards one another in longitudinal direction of the parts 1 and 3.
  • Figure 4 shows a cross-section across the receiving part 2 and the tooth 3 where the cavity 4 in the tooth 3 is located.
  • the wall 5 of the cavity 4 has a curved shape, with the centre 6 of the radius of curvature R being located at a considerable distance from the wall 5.
  • Wall 7, located opposite the wall 5, of receiving part 2 has a radius of curvature S being slightly larger than R and having its centre indicated by 8.
  • Walls 5 and 7 will basically contact one another according to the line 9 at the beginning of telescoping of the parts. On telescoping further, the parts located adjacent the line 9 will also contact each other as a result of elastic deformation.
  • the parts being located adjacent the line 9 need only have a limited width in order to have a sufficiently high enclosing force between the parts. Due to that, the friction between the parts will remain limited, so that sliding-in can take place relatively easy.
  • a locking element 10 is employed for guaranteeing a positive enclosure of the parts in relation to one another. At one side, the element 10 abuts the wall of a recess 11 in the receiving part 2 and at the other side it abuts a wall of a recess 12 in the tooth 3, at the position of the cavity 4 in it.
  • the locking element is formed by two L-shaped strips 13 and 14 having their legs 15 and 16 respectively extending in parallel and being connected to one another by an elastic body 17, consisting of rubber or a similar material, for example.
  • the legs 15 and 16 of the strips can be provided with ribs 18, see Figure 7, for establishing a firm connection between the strips and the elastic body 17.
  • leg 15 of the strip 13 passes into the leg 20, abutting the outer side of the leg 21 of the strip 14.
  • the free ends of the legs 15 and 16 are provided with flanged parts for forming two parts 22 being closer together.
  • both holes have smaller dimensions than the recesses.
  • the locking element 10 will be pushed through the uppermost hole 23 as seen in Figures 2 and 4, in which a hammer can be employed for exerting a force K, as indicated in Fig. 2.
  • a force in the same direction will be exerted on the locking element.
  • the adapter 1 can be provided with wedge-shaped cams 24 for removing a tooth 3 from the adapter.
  • Removing the tooth from the adapter can take place by hitting on the back side of the tooth, namely alternately on its various edges.
  • a two-teeth wedge-shaped fork can be driven between these cams and the back side of the tooth in order to release the tooth from the adapter. In most cases, this makes releasing the tooth easier and less time-consuming.
  • cams 25 for preventing a tooth from being slid onto the adapter too far and for checking if the tooth is located in the appropriate position.

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)
  • Soil Working Implements (AREA)
  • Shovels (AREA)
EP01202733A 2000-07-21 2001-07-17 Ensemble composé d'une dent et d'un adaptateur pour une excavatrice, comme une tête de coupe ou analogue Expired - Lifetime EP1174547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1015772 2000-07-21
NL1015772A NL1015772C2 (nl) 2000-07-21 2000-07-21 Samenstel van een tand en een adapter voor een grondbewerkings-machine, zoals een cutter of dergelijke.

Publications (2)

Publication Number Publication Date
EP1174547A1 true EP1174547A1 (fr) 2002-01-23
EP1174547B1 EP1174547B1 (fr) 2006-08-23

Family

ID=19771782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01202733A Expired - Lifetime EP1174547B1 (fr) 2000-07-21 2001-07-17 Ensemble composé d'une dent et d'un adaptateur pour une excavatrice, comme une tête de coupe ou analogue

Country Status (6)

Country Link
EP (1) EP1174547B1 (fr)
AT (1) ATE337439T1 (fr)
DE (1) DE60122433T2 (fr)
ES (1) ES2270951T3 (fr)
NL (1) NL1015772C2 (fr)
PT (1) PT1174547E (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2846017A1 (fr) * 2002-10-17 2004-04-23 Afe Metal Dispositif de liaison d'accouplement entre des pieces d'usure aux extremites d'outils receptacles en usage sur les engins de travaux publics
WO2004057117A1 (fr) * 2002-12-23 2004-07-08 Combi Wear Parts Ab Systeme de pieces d'usure pour fixer detachable des pieces d'usure destinees a l'outil d'une machine agricole
CN101003978B (zh) * 2003-04-30 2010-09-15 爱斯科公司 用于挖掘机的挖掘刃边的磨损组件
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine
USD857761S1 (en) 2017-08-30 2019-08-27 Caterpillar Inc. Adapter for a ground engaging machine implement
US10480162B2 (en) 2016-12-15 2019-11-19 Caterpillar Inc. Implement ground engaging tip assembly having tip with tapered retention channel
US10480161B2 (en) 2016-12-15 2019-11-19 Caterpillar Inc. Implement tip assembly having tip with wear indicator
US10494793B2 (en) 2016-12-15 2019-12-03 Caterpillar Inc. Implement tip assembly having tip with support rib

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO328986B1 (no) * 2008-04-28 2010-07-12 Agromiljo As Anordning ved salabb for nedfelling av partikler og fluid
USD803900S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806758S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803274S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD803899S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806139S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803901S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806142S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803902S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD806759S1 (en) 2016-12-15 2018-01-02 Caterpillar Inc. Tip for a ground engaging machine implement
USD803897S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD805562S1 (en) 2016-12-15 2017-12-19 Caterpillar Inc. Adapter for a ground engaging machine implement
USD806141S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803275S1 (en) 2016-12-15 2017-11-21 Caterpillar Inc. Tip for a ground engaging machine implement
USD806140S1 (en) 2016-12-15 2017-12-26 Caterpillar Inc. Adapter for a ground engaging machine implement
USD803898S1 (en) 2016-12-15 2017-11-28 Caterpillar Inc. Tip for a ground engaging machine implement
USD840441S1 (en) 2016-12-15 2019-02-12 Caterpillar Inc. Adapter for a ground engaging machine implement
USD805112S1 (en) 2016-12-15 2017-12-12 Caterpillar Inc. Tip for a ground engaging machine implement
USD888785S1 (en) 2019-03-07 2020-06-30 Caterpillar Inc. Adapter for a ground engaging machine implement
USD905765S1 (en) 2019-03-07 2020-12-22 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945498S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement
USD945499S1 (en) 2020-11-18 2022-03-08 Caterpillar Inc. Adapter for a ground engaging machine implement

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050014A (en) * 1934-12-10 1936-08-04 American Manganese Steel Co Box type cap for excavating teeth
US3444633A (en) * 1966-09-06 1969-05-20 Hensley Equipment Co Inc Two-part excavating tooth
FR2032575A5 (fr) * 1969-10-28 1970-11-27 Villechenon Louis
US3601911A (en) * 1969-08-25 1971-08-31 Concrete Steel Corp Replaceable fork tine wear tip
LU67039A1 (fr) * 1972-02-18 1973-04-19
FR2175120A1 (fr) * 1972-03-08 1973-10-19 Bofors Ab
US4251933A (en) * 1979-03-05 1981-02-24 Hemphill Charles W Lip and teeth in combination with a flat bottom bucket
FR2545122A1 (fr) * 1983-04-26 1984-11-02 Liebherr France Dent pour benne preneuse ou pelle pour pelles excavatrices hydrauliques, chargeuses ou analogues
US4823487A (en) * 1987-07-30 1989-04-25 Gh Hensley Industries, Inc. Resilient flex pin apparatus for excavating tooth point and adapter assemblies
US4835888A (en) * 1987-05-01 1989-06-06 Hemphill Charles W Excavating tooth and holder therefor
EP0835963A1 (fr) * 1996-07-01 1998-04-15 Dos Asesoramiento Y Gestion, S.L. Joint d'accouplement pour dent d'excavatrice
US5778570A (en) * 1993-08-30 1998-07-14 Baz Service Ag Excavator tooth
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106256A (en) * 1962-01-08 1963-10-08 Richard A Mcbride Excavating tooth structure

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2050014A (en) * 1934-12-10 1936-08-04 American Manganese Steel Co Box type cap for excavating teeth
US3444633A (en) * 1966-09-06 1969-05-20 Hensley Equipment Co Inc Two-part excavating tooth
US3601911A (en) * 1969-08-25 1971-08-31 Concrete Steel Corp Replaceable fork tine wear tip
FR2032575A5 (fr) * 1969-10-28 1970-11-27 Villechenon Louis
LU67039A1 (fr) * 1972-02-18 1973-04-19
FR2175120A1 (fr) * 1972-03-08 1973-10-19 Bofors Ab
US4251933A (en) * 1979-03-05 1981-02-24 Hemphill Charles W Lip and teeth in combination with a flat bottom bucket
FR2545122A1 (fr) * 1983-04-26 1984-11-02 Liebherr France Dent pour benne preneuse ou pelle pour pelles excavatrices hydrauliques, chargeuses ou analogues
US4835888A (en) * 1987-05-01 1989-06-06 Hemphill Charles W Excavating tooth and holder therefor
US4823487A (en) * 1987-07-30 1989-04-25 Gh Hensley Industries, Inc. Resilient flex pin apparatus for excavating tooth point and adapter assemblies
US5778570A (en) * 1993-08-30 1998-07-14 Baz Service Ag Excavator tooth
EP0835963A1 (fr) * 1996-07-01 1998-04-15 Dos Asesoramiento Y Gestion, S.L. Joint d'accouplement pour dent d'excavatrice
US5956874A (en) * 1998-05-07 1999-09-28 Columbia Steel Casting Co., Inc. Tooth assembly and lock system

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2846017A1 (fr) * 2002-10-17 2004-04-23 Afe Metal Dispositif de liaison d'accouplement entre des pieces d'usure aux extremites d'outils receptacles en usage sur les engins de travaux publics
WO2004035945A1 (fr) * 2002-10-17 2004-04-29 Afe Metal Dispositif pour accoupler des pieces d’usure aux outils receptacles d’un engin de travaux publics
AU2003301453B8 (en) * 2002-10-17 2004-05-04 Afe Metal Device for coupling wear pieces to reception tools of a public works machine
US7086185B2 (en) 2002-10-17 2006-08-08 Afe Metal Device for coupling wear pieces to the receptacle tools of a public works machine
AU2003301453B2 (en) * 2002-10-17 2007-08-23 Afe Metal Device for coupling wear pieces to reception tools of a public works machine
WO2004057117A1 (fr) * 2002-12-23 2004-07-08 Combi Wear Parts Ab Systeme de pieces d'usure pour fixer detachable des pieces d'usure destinees a l'outil d'une machine agricole
JP2006511741A (ja) * 2002-12-23 2006-04-06 コンビ ウエア パーツ アーベー 耕作機械のツール用の磨耗部品を着脱自在に取り付けるための磨耗部品システム
US7703224B2 (en) 2002-12-23 2010-04-27 Combi Wear Parts Ab Wearing parts system for detachable fitting of wearing parts for the tool of a cultivating machine
KR101063369B1 (ko) 2002-12-23 2011-09-07 콤비 웨어 파츠 아베 경작 기계의 도구를 위한 웨어링 파트를 분리 가능하게끼우는 웨어링 파트 시스템
CN1748063B (zh) * 2002-12-23 2011-09-14 康比磨损部件股份有限公司 用于耕耘机械工具的易损件的可拆式安装的易损件系统
NO337482B1 (no) * 2002-12-23 2016-04-18 Combi Wear Parts Ab Slitedelsystem ment for redskap til en gravemaskin.
CN101003978B (zh) * 2003-04-30 2010-09-15 爱斯科公司 用于挖掘机的挖掘刃边的磨损组件
US9493930B2 (en) 2006-03-30 2016-11-15 Esco Corporation Lock for securing a wear assembly to excavating equipment
US9650764B2 (en) 2006-03-30 2017-05-16 Esco Corporation Wear assembly for use on earth working equipment
US9816254B2 (en) 2006-03-30 2017-11-14 Esco Corporation Wear assembly for use on earth working equipment
US10829912B2 (en) 2006-03-30 2020-11-10 Esco Group Llc Wear assembly for use on earth working equipment
US9670648B2 (en) 2015-08-10 2017-06-06 Caterpillar Inc. Replaceable tip systems for a tine
US10480162B2 (en) 2016-12-15 2019-11-19 Caterpillar Inc. Implement ground engaging tip assembly having tip with tapered retention channel
US10480161B2 (en) 2016-12-15 2019-11-19 Caterpillar Inc. Implement tip assembly having tip with wear indicator
US10494793B2 (en) 2016-12-15 2019-12-03 Caterpillar Inc. Implement tip assembly having tip with support rib
US11306461B2 (en) 2016-12-15 2022-04-19 Caterpillar Inc. Implement ground engaging tip assembly having tip with tapered retention channel
US11519159B2 (en) 2016-12-15 2022-12-06 Caterpillar Inc. Implement tip assembly having tip with support rib
US11613874B2 (en) 2016-12-15 2023-03-28 Caterpillar Inc. Implement tip assembly having tip with wear indicator
US11788260B2 (en) 2016-12-15 2023-10-17 Caterpillar Inc. Implement ground engaging tip assembly having tip with tapered retention channel
USD857761S1 (en) 2017-08-30 2019-08-27 Caterpillar Inc. Adapter for a ground engaging machine implement

Also Published As

Publication number Publication date
DE60122433D1 (de) 2006-10-05
ATE337439T1 (de) 2006-09-15
ES2270951T3 (es) 2007-04-16
EP1174547B1 (fr) 2006-08-23
DE60122433T2 (de) 2007-10-04
PT1174547E (pt) 2007-01-31
NL1015772C2 (nl) 2002-01-22

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