IP Library Granted Patent US 7,451,944
Granted Patent B2
US 7,451,944 · App. 11/668,407 · Granted Nov 18, 2008

Replaceable segmented wear liner

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Quick Facts
Patent No.
US 7,451,944
App. No.
11/668,407
Granted
Nov 18, 2008
Kind
B2
Abstract

In one aspect of the invention, a cone crusher comprises a crushing surface comprising a conical head and a concave bowl. At least one of the head or bowl comprises a segmented wear liner wherein at least one segment of the wear liner is held in place by compression.

Claims (22)

1. A cone crusher, comprising:

a crushing surface comprising a conical head and a concave bowl;

at least one of the head or bowl comprising a segmented wear liner;

at least one insert is disposed within the liner and a circumscribing wear resistant washer is disposed around the at least one insert; and

the at least one insert is press fit into a material softer than the washer and at least one insert; the softer material being disposed between the at least one insert and the washer;

wherein at least one segment of the wear liner is held in place by compression.

2. The cone crusher of claim 1 , wherein a body of the wear liner comprises manganese, steel, stainless steel, carbide, tungsten carbide, hard metal, chromium, aluminum, nitride, titanium, or combinations thereof.

3. The cone crusher of claim 1 , wherein the wear liner comprises a hard surface of a material selected from the group consisting of tungsten carbide, niobium carbide, a cemented metal carbide, hard metal, chromium, aluminum, nitride, titanium manganese carbide, or combinations thereof.

4. The cone crusher of claim 1 , wherein adjacent segments of the wear liner interlock with one another.

5. The cone crusher of claim 1 , wherein at least one segment of the wear liner interlocks with at least one of the head or the bowl.

6. The cone crusher of claim 1 , wherein at least one segment of the wear liner is held in place by lateral compression.

7. The cone crusher of claim 1 , wherein the at least one segment of the wear liner is held in place by axial compression.

8. The cone crusher of claim 1 , wherein a junction between adjacent segments is non-planar.

9. The cone crusher of claim 1 , wherein the bowl and/or the cone comprise at least one guide track.

10. The cone crusher of claim 1 , wherein the wear liner is horizontally and/or vertically segmented.

11. The cone crusher of claim 1 , wherein segments of the liner are adapted to wedge together.

12. The cone crusher of claim 1 , wherein a at least two vertically adjacent segments are offset.

13. The cone crusher of claim 1 , wherein the wear liner comprises a plurality of wear resistant inserts.

14. The inserts of claim 13 , wherein at least one wear resistant insert comprises a coating selected from the group consisting of diamond, polycrystalline diamond, cubic boron nitride, refractory metal bonded diamond, silicon bonded diamond, cobalt bonded diamond, layered diamond, infiltrated diamond, thermally stable diamond, natural diamond, vapor deposited diamond, physically deposited diamond, diamond impregnated matrix, diamond impregnated carbide, cemented metal carbide, carbide matrix, chromium, titanium, aluminum, tungsten, and combinations thereof.

15. The inserts of claim 13 , wherein the inserts are brazed or press fit into cavities in the crushing surface.

16. The inserts of claim 13 , wherein the inserts protrude beyond the crushing surface by 0.010 to 3.00 inches.

17. The cone crusher of claim 1 , wherein the interlocking segments, and/or at least one segment and at least one of the cone or the bowl, form a joint from the group consisting of tongue and groove joint, mortise and tenon joint, lap-joint, dovetail joint, or combinations thereof.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2015
From: HALL, DAVID R.
To: NOVATEK IP, LLC
Reel/Frame 036109/0109 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2007
From: BAILEY, JOHN, MR.; CROCKETT, RONALD B., MR.; JEPSON, JEFF, MR.
To: HALL, DAVID R., MR.
Reel/Frame 018819/0937 →