Wear liner assembly

Patent metadata

Field	Value
Publication number	US-12208398-B2
Application number	US-201716308606-A
Country	US
Kind code	B2
Filing date	Jun 8, 2017
Priority date	Jun 8, 2016
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

The present invention provides a wear liner assembly ( 13 ) adapted to be secured to a structure ( 15 ). The wear liner assembly comprises a wear liner ( 14 ) having a first material secured to a backing plate ( 17 ). The backing plate has at least one hole ( 43 ) therethrough. A first fastener portion is adapted to co-operate with a second fastener portion to securing the wear liner to the structure. The first fastener portion is received in the at least one hole and is at least partially housed within the wear liner.

First claim

The invention claimed is:

1. A wear liner assembly for securing to a structure, the wear liner assembly comprising:
a wear liner comprising a first material secured to a backing plate, the backing plate having at least one hole therethrough;
a first fastener portion and a second fastener portion rotatably secured to the first fastener portion, the first fastener portion co-operates with the second fastener portion for securing the wear liner to the structure,
wherein the first fastener portion has a portion of a first end encapsulated and retained within the wear liner such that the first fastener portion cannot be removed from the wear liner, and a portion of a second end extending through the at least one hole.

2. The wear liner assembly according to claim 1 wherein the portion of the first end of the first fastener portion is received in the backing plate so as to be housed within the wear liner.

3. The wear liner assembly according to claim 2 wherein the at least one hole of the backing plate incorporates a recess, wherein the recess supports the portion of the first end of the first fastener portion.

4. The wear liner assembly according to claim 1 wherein the first material is a first wear layer, the first wear layer providing an outer wear surface which is exposed to abrasive material passing through the structure.

5. The wear liner assembly according to claim 4 wherein the first wear layer comprises multiple layers of the same or different materials.

6. A wear liner assembly to be secured to a structure, the wear liner assembly comprising:
a wear liner comprising a first material layer secured relative to a backing plate, the backing plate having at least one hole therethrough;
at least one fastener assembly comprising a first fastener portion and a second fastener portion, the first fastener portion co-operates with the second fastener portion for securing the wear liner to the structure,
wherein the first fastener portion is received in the at least one hole such that a portion of a first end of the first fastener portion is encapsulated and retained within the wear liner such that the first fastener portion cannot be removed from the wear liner.

7. The wear liner assembly according to claim 6 wherein the first material layer includes at least one aperture therethrough, the at least one aperture in the first wear layer being axially aligned with the at least one hole in the backing plate, the at least one aperture being smaller in diameter than a largest diameter of the first fastener portion.

8. The wear liner assembly according to claim 6 wherein the first material layer is a first wear layer, the first wear layer comprises one or more first wear units/tiles secured relative to the backing plate.

9. The wear liner assembly according to claim 8 wherein the wear liner comprises one or more further wear layers between the backing plate and the first wear layer.

10. The wear liner assembly according to claim 8 wherein the first wear layer is made from ceramic or a ceramic based material.

11. The wear liner assembly according to claim 8 wherein a first surface of the first wear layer is secured to a first surface of the backing plate the first surface of the first wear layer is bonded to the first surface of the backing plate using a bonding material.

12. The wear liner assembly according to claim 11 wherein the first surface of the first wear layer is planar and is substantially continuous between its edges.

13. The wear liner assembly according to claim 11 wherein the first wear layer has at least one aperture therethrough, whereupon installation the at least one aperture aligns with the first fastening portion.

14. The wear liner assembly according to claim 11 wherein an axial movement of the first fastener portion is limited by the first surface of the first wear layer or the bonding material.

15. The wear liner assembly according to claim 8 wherein the portion of the first end of the first fastener portion is positioned within the thickness of the backing plate.

16. The wear liner assembly according to claim 6 wherein the first fastener portion comprises a bolt having a bolt head and a shank wherein the bolt head provides the portion of the first end of the first fastener portion, and the shank provides a portion of a second end of the first fastener portion, the bolt head being retained within the wear liner and the shank extends from the bolt head through the at least one hole in the backing plate, through the backing plate to extend rearwardly therefrom.

17. The wear liner assembly according to claim 16 wherein the portion of the first end of the first fastener portion is freely rotatable while retained within the wear liner, an underside of the bolt head being flush with or inward of a first surface of the wear liner.

18. The wear liner assembly according to claim 16 wherein the bolt head has a tool recess which during installation and removal of the wear liner assembly co-operates with a tool for rotating the bolt, whereby at least one aperture of the first wear layer aligns with the tool recess of the bolt head, wherein a diameter of the aperture in the first wear layer is smaller than a diameter of the bolt head and larger than a diameter of a portion of the tool which enters the aperture.

19. The wear liner assembly according to claim 18 wherein the at least one aperture in the first wear layer is configured to be sealed once the wear liner is secured to the structure.

20. The wear liner assembly according to claim 19 wherein the at least one aperture in the first wear layer is sealed by a plug suitably secured therein such as by bonding, friction or material welding.

21. The wear liner assembly according to claim 16 wherein the portion of the first end of the first fastener portion is rotatably fixed when retained within the wear liner.

22. The wear liner assembly according to claim 21 wherein the bolt is keyed relative to the insert in the backing plate to prevent rotation of the bolt once the bolt head is received in the insert, the axial movement of the bolt in the wear liner being less than the axial movement required to disengage the bolt from the insert in a manner whereby the bolt is no longer keyed relative to the insert.

23. The wear liner assembly according to claim 6 wherein the fastener assembly further comprises an insert which is received in the backing plate.

24. The wear liner assembly according to claim 23 wherein the insert is threadingly received in the at least one hole, the at least one hole is in the form of a threaded aperture.

25. The wear liner assembly according to claim 6 wherein the portion of the first end of the first fastener portion is freely rotatable while retained within the wear liner.

26. The wear liner assembly according to claim 6 wherein the portion of the first end of the first fastener portion is in the form of a nut, wherein the nut is retained within the wear liner and positioned such that a threaded hole of the nut aligns with the at least one hole of the backing plate.

27. A wear liner assembly to be secured to a structure, the structure having a plurality of openings for securing the wear liner assembly thereto, the wear liner assembly comprising:
a wear liner comprising a first wear layer secured to a backing plate;
at least one fastener assembly for securing the wear liner to the structure, th

Assignees

• Brian Investments Pty Ltd
• Metso Outotec Finland Oy

Inventors

• Davies Brian

Classifications

• B02C17/225

  using rubber or elastomeric material · CPC title

• F16B43/00

  Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) · CPC title

• F16B35/06

  Specially-shaped heads (special shape in order to rotate the bolt F16B23/00 {; separate hook adaptors for bolts F16B43/025}) · CPC title

• F16B5/0642

  the plates being arranged one on top of the other and in full close contact with each other · CPC title

• B02C17/22 Primary

  Lining for containers · CPC title