NZ779937B2 - System for attaching wear elements to earthmoving machines - Google Patents
System for attaching wear elements to earthmoving machines Download PDFInfo
- Publication number
- NZ779937B2 NZ779937B2 NZ779937A NZ77993720A NZ779937B2 NZ 779937 B2 NZ779937 B2 NZ 779937B2 NZ 779937 A NZ779937 A NZ 779937A NZ 77993720 A NZ77993720 A NZ 77993720A NZ 779937 B2 NZ779937 B2 NZ 779937B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- stem
- locking element
- locking
- outer body
- fixing
- Prior art date
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
-
- 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
Abstract
system for fixing wear elements in earth-moving machines, in particular, to a system for fixing a tooth to a tooth-holder of an earth moving machine, it can also be used for fixing any wear element, including lip guards and side guards. The system for fixing wear elements in earth-moving machines, which comprises a stem (1) that rotates between a locking position and a release position with respect to the wear element (10) and a holder (11), said stem (1) defining an inner end and an outer end, said stem (1) comprising locking elements (2, 3), wherein said stem (1) comprises a first deformable locking element (2) placed at the inner end of said stem (1) and a second locking element (3) arranged shifted towards the outer end of said stem (1), wherein said second locking element (3) is a protrusion perpendicular to a longitudinal axis of said stem (1), wherein the first locking element (2) comprises a tip (18) comprising a greater thickness in a front part of the tip (18). It allows providing a system for fixing wear elements in earth-moving machines that is easy to manipulate and that improves/secures the contacts between the tooth and the tooth-holder.
Claims (16)
1. A system for fixing a wear element (10) in earth-moving machine, comprising a stem (1) that rotates between a locking position and a release position with 5 respect to the wear element (10) and a holder (11), said stem (1) defining an inner end and an outer end, said stem (1) comprising locking elements (2, 3), characterized in that said stem (1) comprises a first deformable locking element (2) placed at the inner end of said stem (1) and a second locking element (3) arranged shifted towards the outer end of said stem (1), wherein 10 said second locking element (3) is a protrusion perpendicular to a longitudinal axis of said stem (1), wherein the first locking element (2) comprises a tip (18) comprising a greater thickness in a front part of the tip (18).
2. The system according to claim 1, wherein said first locking element (2) has a 15 polygonal cross-section.
3. The system according to any one of claims 1 to 2, which also comprises a third locking element (4) placed between the first locking element (2) and the second locking element (3).
4. The system according to claim 3, wherein said third locking element (4) is a deformable protrusion positioned between the first and second locking elements (2, 3). 25
5. The system according to claim 1, wherein said stem (1) comprises a cavity (5) at the outer end of said stem (1).
6. The system according to claim 5, wherein said cavity (5) has a polygonal cross-section.
7. The system according to any one of claims 1 to 6, which also comprises an outer body (6) provided with a through hole (7) for said stem (1), said first locking element (2) and second locking element ( 3) protruding from said outer body (6).
8. The system according to any one of claims 3 and 4, which also comprises an outer body (6) provided with a through hole (7) for said stem (1), the first locking element (2), the second locking element (3) and the third locking element (4) protruding from said outer body (6).
9. The system according to claim 8, wherein said third locking element (4) is housed inside a housing (8) of said outer body (6).
10. The system according to claim 1, wherein said second locking element (3) is 10 in one single piece with the stem (1).
11. The system according to claim 7 or 8, wherein said outer body (6) comprises a bearing surface (14). 15
12. The system according to claim 11, wherein said bearing surface (14) is formed by a lower protrusion on said outer body (6).
13. The system according to claim 9, wherein said housing (8) for the third locking element (4) forms a through hole.
14. The system according to claim 3, wherein said stem (1) comprises a cam- shaped groove (16), and said stem (1), in one position pushes the third locking element (4) to contact the holder (11).
15. The system according to claim 1, wherein the first locking element (2) comprises a beveled tip (18). 30
16. The system according to claim 1, wherein the second locking element (3) comprises a ramp (17) in an area joining the stem (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2019/070125 WO2020178462A1 (en) | 2019-03-01 | 2019-03-01 | System for the attachment of wear elements in earth-moving machinery |
| PCT/ES2020/070149 WO2020178466A1 (en) | 2019-03-01 | 2020-03-02 | System for attaching wear elements to earthmoving machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ779937A NZ779937A (en) | 2024-07-05 |
| NZ779937B2 true NZ779937B2 (en) | 2024-10-08 |
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