EP3839154A1 - Pièce d'usure, godet et procédé - Google Patents

Pièce d'usure, godet et procédé Download PDF

Info

Publication number
EP3839154A1
EP3839154A1 EP19217326.8A EP19217326A EP3839154A1 EP 3839154 A1 EP3839154 A1 EP 3839154A1 EP 19217326 A EP19217326 A EP 19217326A EP 3839154 A1 EP3839154 A1 EP 3839154A1
Authority
EP
European Patent Office
Prior art keywords
tongue
fixing element
wear part
groove fixing
bucket
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
EP19217326.8A
Other languages
German (de)
English (en)
Inventor
Mr. Jussi MIKKOLA
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 Oy
Original Assignee
Sandvik Mining and Construction Oy
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 Oy filed Critical Sandvik Mining and Construction Oy
Priority to EP19217326.8A priority Critical patent/EP3839154A1/fr
Priority to AU2020403919A priority patent/AU2020403919A1/en
Priority to CN202080083495.2A priority patent/CN114729526A/zh
Priority to PCT/EP2020/086427 priority patent/WO2021122751A1/fr
Priority to CA3159012A priority patent/CA3159012A1/fr
Publication of EP3839154A1 publication Critical patent/EP3839154A1/fr
Priority to CL2022001593A priority patent/CL2022001593A1/es
Pending 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
    • E02F9/2883—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 invention relates to a wear part for a bucket of a bucket machine.
  • the invention further relates to a bucket for a bucket machine.
  • the invention still further relates to a method for attaching the wear part to a bucket.
  • a problem with known technology of wear parts and buckets is that the wear parts may easily get broken.
  • a wear part for a bucket of a bucket machine comprising: a forward edge for intruding in a material to be handled by the bucket, an engagement portion for engaging with an engagement edge of the bucket, a first side and a second side connecting the forward edge to the engagement portion, a bottom face, and an upper face, wherein at least one of said first side and second side comprises a first tongue-and-groove fixing element for contacting a second tongue-and-groove fixing element arranged in an adjacent wear part and for completing a tongue-and-groove joint between said two wear parts.
  • a bucket for a bucket machine comprising plurality of wear parts described above.
  • there can be a method for attaching the wear part to a bucket comprising: fitting the engagement portion of the wear part to an engagement edge of the bucket, sliding the wear part sideways towards another wear part arranged in the bucket, until the first tongue-and-groove fixing element and the second tongue-and-groove fixing element completes a tongue-and-groove joint between said two wear parts, and fastening the wear part to the bucket.
  • the wear part, the bucket and the method are characterised by what is stated in the independent claims. Some other embodiments are characterised by what is stated in the other claims.
  • inventive embodiments are also disclosed in the specification and drawings of this patent application.
  • the inventive content of the patent application may also be defined in other ways than defined in the following claims.
  • the inventive content may also be formed of several separate inventions, especially if the invention is examined in the light of expressed or implicit sub-tasks or in view of obtained benefits or benefit groups. Some of the definitions contained in the following claims may then be unnecessary in view of the separate inventive ideas.
  • Features of the different embodiments of the invention may, within the scope of the basic inventive idea, be applied to other embodiments.
  • the first tongue-and-groove fixing element is a female tongue-and-groove fixing element that is a hole extending from the side into the wear part.
  • the female tongue-and-groove fixing element has a round cross-section.
  • the female tongue-and-groove fixing element has a polygonal cross-section, such as a rectangle.
  • the female tongue-and-groove fixing element is a groove that is open to the bottom face or to the upper face.
  • the female tongue-and-groove fixing element being open to the bottom or upper face has an arc-like shape.
  • An advantage is that the shape may allow some variations in positions between neighbouring wear parts.
  • the cross-section of the female tongue-and-groove fixing element has a polygonal shape, such as rectangle.
  • the male tongue-and-groove fixing element has a round cross-section.
  • the male tongue-and-groove fixing element is an integral part of the wear part.
  • the male tongue-and-groove fixing element is realized by a separate body, and the wear part comprises a receiving channel, wherein said separate body is arrangeable to said receiving channel.
  • the male tongue-and-groove fixing element is realized by a separate body, and the wear part comprises a receiving channel, the cross-section of which is at least essentially identical with a female tongue-and-groove fixing element the shape of which is selected to complete a tongue-and-groove joint with the separate body.
  • Figure 1 is a schematic view of a bucket comprising wear parts attached therein.
  • Buckets 2 comprises typically plurality of wear parts 1.
  • the wear part attaches to an engagement edge 5 of the bucket by an engagement portion 4 (shown in following Figures).
  • the engagement portion 4 as well as the engagement edge 5 may be shaped many ways.
  • the wear parts 1 may be arranged side by side so that a continuous lip or shroud of wear parts is constituted.
  • All the wear parts 1 of a bucket 2 may have same shape and dimensions. Alternatively, there are differently shaped and/or dimensioned wear parts 1.
  • forward edges 3 of the wear parts constitutes a V-shaped design (seen from above).
  • the shape may be straight, curved or any combinations of said shapes.
  • Figure 2 is a schematic view of embodiments of wear parts, showing two wear parts.
  • the wear part 1 comprises a forward edge 3 in purpose for intruding in a material to be handled by the bucket 2, and an engagement portion 4 for engaging with the engagement edge 5 (shown in Figure 1 ) of the bucket 2.
  • the wear part 1 further comprises a first side 6 and a second side 7 connecting the forward edge 3 to the engagement portion 4, and a bottom face 8 and an upper face 9.
  • At least one of the first side 6 and the second side 7 comprises a first tongue-and-groove fixing element 10.
  • the first tongue-and-groove fixing element 10 is adapted for contacting a second tongue-and-groove fixing element 11 that is arranged in an adjacent wear part 1 and for completing a tongue-and-groove joint between said two wear parts 1.
  • the first tongue-and-groove fixing element 10 is a female tongue-and-groove fixing element.
  • said first fixing element 10 is a hole that extends from the first side 6 into the wear part 1.
  • the female tongue-and-groove fixing element has a polygonal cross-section.
  • the cross-section is a rectangle.
  • the second side 7 of the wear part 1 comprises a second tongue-and-groove fixing element 11.
  • the second element 11 is a male tongue-and-groove fixing element, and the tongue-and-groove joint lies between the two wear parts 1.
  • the shape of the second tongue-and-groove fixing element 11 is selected to complete a tongue-and-groove joint with a tongue-and-groove fixing element similar to the first tongue-and-groove fixing element 10 arranged on the first side 6.
  • the male tongue-and-groove fixing element has a polygonal cross-section, such as a rectangle.
  • the male fixing element fills the female element essentially completely.
  • the male fixing element may be substantially shorter than the female fixing element, or the distal end of the female fixing element may be differently shaped compared to the end of the male fixing element, etc., provided that desired tongue-and-groove joint may be formed.
  • the male tongue-and-groove fixing element is realized by a separate body 12.
  • the wear part 1 comprises a receiving channel 13, in which the separate body 12 may be arranged.
  • the cross-section of the receiving channel 13 is at least essentially identical with a female tongue-and-groove fixing element used in the tongue-and-groove joint, but this is not always necessary.
  • the separate body 12 is attached to the receiving channel 13 using e.g. welding or heat treatment methods, but in another embodiment, the separate body 12 is just pushed in the receiving channel 13.
  • the male tongue-and-groove fixing element is an integral part of the wear part 1.
  • FIG 3 is a schematic view of another embodiments of wear parts.
  • the female tongue-and-groove fixing element shown in Figure 3 as the first tongue-and-groove fixing element 10
  • has a round cross-section as well as the male tongue-and-groove fixing element has a round cross-section.
  • This kind of male tongue-and-groove fixing element may be an integral part of the wear part 1, or a separate body 12 as described above.
  • the wear part 1 comprises just one fixing element 10, 11 per side 6, 7. In another embodiment, there are two or even more fixing elements 10, 11 on same side of the wear part 1.
  • the fixing elements arranged on the same side may be of similar type, for example there may be two male fixing elements on the same side 6, 7. It is also possible that the fixing elements arranged on the same side are of different type, i.e. both female and male elements.
  • Figure 4 is a schematic view of third embodiments of wear parts.
  • the female tongue-and-groove fixing element is a groove that is open to the bottom face 8.
  • the male fixing element is arranged respectively.
  • the cross-section of the female fixing element may have a polygonal shape, such as rectangle, or an arc-like shape, or any combinations thereof.
  • the female tongue-and-groove fixing element is a groove that is open to the upper face 9, and the male fixing element is arranged respectively.
  • the cross-section of the female fixing element may have a polygonal shape, such as rectangle, or an arc-like shape, or any combinations thereof.
  • Figure 5 illustrates a method for attaching a wear part.
  • the method it is fit 501 the engagement portion 4 of the wear part 1 to an engagement edge 5 of the bucket 2.
  • said wear part 1 is slid 502 sideways, optionally along the engagement edge 5 towards another wear part 1 arranged in the bucket 2.
  • the first tongue-and-groove fixing element 10 and the second tongue-and-groove fixing element 11 is used for completing 503 a tongue-and-groove joint between said two wear parts 1, and the wear part 1 is fastened 504 to the bucket 2.
  • the female tongue-and-groove fixing element is a groove that is open to the bottom or upper face 8, 9 it is possible to arrange the side 6, 7 of the wear part 1 in contact with the next wear part, or at least vicinity thereof. Then said wear part 1 is rotated on its right place in the engagement edge 5 - providing that the design of the engagement portion 4 and the engagement edge 5 allow such a procedure.

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)
  • Shovels (AREA)
EP19217326.8A 2019-12-18 2019-12-18 Pièce d'usure, godet et procédé Pending EP3839154A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP19217326.8A EP3839154A1 (fr) 2019-12-18 2019-12-18 Pièce d'usure, godet et procédé
AU2020403919A AU2020403919A1 (en) 2019-12-18 2020-12-16 Wear part, bucket and method
CN202080083495.2A CN114729526A (zh) 2019-12-18 2020-12-16 耐磨部件、铲斗和方法
PCT/EP2020/086427 WO2021122751A1 (fr) 2019-12-18 2020-12-16 Pièce d'usure, godet, et procédé
CA3159012A CA3159012A1 (fr) 2019-12-18 2020-12-16 Piece d'usure, godet, et procede
CL2022001593A CL2022001593A1 (es) 2019-12-18 2022-06-14 Pieza de desgaste, cubo y método.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19217326.8A EP3839154A1 (fr) 2019-12-18 2019-12-18 Pièce d'usure, godet et procédé

Publications (1)

Publication Number Publication Date
EP3839154A1 true EP3839154A1 (fr) 2021-06-23

Family

ID=68944516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19217326.8A Pending EP3839154A1 (fr) 2019-12-18 2019-12-18 Pièce d'usure, godet et procédé

Country Status (6)

Country Link
EP (1) EP3839154A1 (fr)
CN (1) CN114729526A (fr)
AU (1) AU2020403919A1 (fr)
CA (1) CA3159012A1 (fr)
CL (1) CL2022001593A1 (fr)
WO (1) WO2021122751A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396963A (en) * 1991-10-09 1995-03-14 Curry; John N. Blades for earth moving machines
US5471770A (en) * 1993-10-05 1995-12-05 F&B Enterprises, Inc. Rubberized wear pad assembly and method of making same
US20150101218A1 (en) * 2013-10-15 2015-04-16 Caterpillar Inc. Bucket edge protection system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO333294B1 (no) * 2010-02-17 2013-04-29 Komatsu Kvx Llc Anordning ved feste for skuffefront
AU2012260425C1 (en) * 2011-05-20 2017-03-09 Sandvik Shark Pty Ltd Ground engaging wear member and means of mechanical attachment
CN110158678A (zh) * 2018-02-12 2019-08-23 日立建机株式会社 铲斗

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396963A (en) * 1991-10-09 1995-03-14 Curry; John N. Blades for earth moving machines
US5471770A (en) * 1993-10-05 1995-12-05 F&B Enterprises, Inc. Rubberized wear pad assembly and method of making same
US20150101218A1 (en) * 2013-10-15 2015-04-16 Caterpillar Inc. Bucket edge protection system

Also Published As

Publication number Publication date
CA3159012A1 (fr) 2021-06-24
AU2020403919A1 (en) 2022-06-16
CL2022001593A1 (es) 2023-03-24
WO2021122751A1 (fr) 2021-06-24
CN114729526A (zh) 2022-07-08

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