Wear part for a jaw crusher, jaw crusher, mineral material processing and method for fixing a wear part

Patent metadata

Field	Value
Publication number	US-9724696-B2
Application number	US-201214385678-A
Country	US
Kind code	B2
Filing date	Mar 19, 2012
Priority date	Mar 19, 2012
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

A wear part for a jaw crusher comprises at a first side a wear surface to be directed to a crushing chamber of the crusher; and at an opposite second side a first counter surface which is fixable against a fixed or movable jaw of the crusher in a detach-able manner. The wear part comprises second counter surfaces inclined in opposite directions, for holding the wear part in place vertically and in a centering way in side direction relative to the jaw. A jaw crusher, a mineral material processing plant and a method for fixing a wear part to a jaw of a jaw crusher in a detachable manner. A wedge tightening coming from three directions is locking the wear part in a centering way in place relative to any possible transfer direction.

First claim

The invention claimed is:

1. A wear part for a jaw crusher which wear part comprises at a first side a wear surface to be directed to a crushing chamber of the crusher; and at an opposite second side a first counter surface which is fixable against a fixed or movable jaw of the crusher in a detachable manner; wherein the wear part comprises, in connection with a first end of the wear part at the bottom of the wear part, a pair of second counter surfaces inclined in opposite directions with respect to each other and relative to the first end of the wear part, which second counter surfaces are arranged to hold the wear part in place vertically and to center the wear part in a side direction relative to the jaw.

2. The wear part according to claim 1 , wherein the two second counter surfaces inclined in opposite directions are arranged to act as a pair centering the wear part in the side direction.

3. The wear part according to claim 1 , wherein the second counter surface is formed to a side wall of a recess which is formed in the first counter surface.

4. The wear part according to claim 1 , wherein the second counter surfaces inclined in opposite directions are inclined in two directions relative to the first counter surface for forming a V-wedge or an A-wedge.

5. The wear pan according to claim 1 , wherein the second counter surfaces are, additionally to the inclination in opposite directions, inclined such that the second counter surfaces are forming an angle of more than 270° with the first counter surface of the wear part.

6. The wear part according to claim 1 , wherein the second counter surfaces are arranged in an angle (β) of 10°-80° relative to an end of the wear part.

7. The wear part according to claim 1 , wherein the second counter surfaces are arranged in an angle (γ) of 80°-10° relative to a longitudinal side of the wear part.

8. A jaw crusher comprising two opposite jaws which form therebetween a crushing chamber for mineral material, of which two opposite jaws at least a first jaw is movable towards a second jaw and away from the second jaw, and at least one jaw comprises at the side of the crushing chamber a first fixing surface for receiving a first counter surface comprised by a wear part in a detachable fixable manner; wherein the said at least one jaw comprises two second fixing surfaces inclined in opposite directions for receiving a pair of second counter surfaces comprised by the wear part in connection with a first end of the wear part at the bottom of the wear part and inclined in opposite directions with respect to each other and relative to the first end of the wear part, and arranged to hold at least one wear part in place vertically and to center the wear part inside direction relative to a fixed or movable jaw.

9. The jaw crusher according to claim 8 , wherein the jaw crusher comprises a wear part comprising at a first side a wear surface to be directed to a crushing chamber of the crusher; and at an opposite second side a first counter surface which is fixable against a fixed or movable jaw of the crusher in a detachable manner; wherein the wear part comprises, in connection with a first end of the wear part at the bottom of the wear part, a pair of second counter surfaces inclined in opposite directions with respect to each other and relative to the first end of the wear part, which second counter surfaces are arranged to hold the wear part in place vertically and to center the wear part in a side direction relative to the jaw.

10. A mineral material processing plant which comprises a frame, a feeder and a jaw crusher comprising two opposite jaws which are forming therebetween a crushing chamber for mineral material, of which jaws at least a first jaw is movable towards a second jaw and away from the second jaw, and at least one jaw comprises at the side of the crushing chamber a first fixing surface for receiving a first counter surface comprised by a wear part in a detachable fixable manner; wherein the said at least one jaw comprises two second fixing surfaces inclined in opposite directions for receiving second counter surfaces comprised by the wear part in connection with a first end of the wear part at the bottom of the wear part and inclined in opposite directions with respect to each other and relative to the first end of the wear part, and arranged to hold at least one wear part in place vertically and to center the wear part in side direction relative to a fixed or movable jaw.

11. A method for fixing at least one wear part to a jaw of a jaw crusher in a detachable manner, the method comprising placing against each other a first fixing surface comprised by the jaw at a side of a crushing chamber of the crusher, and a first counter surface comprised by the wear part, which first counter surface is in the wear part at an opposite side of the wear surface, wherein the method comprises pressing against each other two second fixing surfaces inclined in opposite directions comprised by the jaw and a pair of second counter surfaces comprised by the wear part in connection with a first end of the wear part at the bottom of the wear part and inclined in opposite directions with respect to each other and relative to the first end of the wear part; holding the wear part in place vertically and in a centering way in side direction relative to a fixed or movable jaw of the crusher by the second fixing surfaces and second counter surfaces.

12. The method according to claim 11 , wherein directing a fixing force to the wear part from at least three different directions.

13. The jaw crusher according to claim 9 , wherein the two second counter surfaces inclined in opposite directions are arranged to act as a pair centering the wear part in the side direction.

14. The jaw crusher according to claim 9 , wherein the second counter surface is formed to a side wall of a recess which is formed in the first counter surface.

15. The jaw crusher according to claim 9 , wherein the second counter surfaces inclined in opposite directions are inclined in two directions relative to the first counter surface for forming a V-wedge or an A-wedge.

16. The jaw crusher according to claim 9 , wherein the second counter surfaces are, additionally to the inclination in opposite directions, inclined such that the second counter surfaces are forming an angle of more than 270° with the first counter surface of the wear part.

17. The jaw crusher according to claim 9 , wherein the second counter surfaces are arranged in an angle (β) of 10°-80° relative to an end of the wear part.

18. The jaw crusher according to claim 9 , wherein the second counter surfaces are arranged in an angle (γ) of 80°-10° relative to a longitudinal side of the wear part.

Assignees

• Peltomaki Kari
• Metso Minerals Inc

Inventors

• Peltomaki Kari

Classifications

• Y10T29/49826

  Assembling or joining · CPC title

• B02C2210/02

  Features for generally used wear parts on beaters, knives, rollers, anvils, linings and the like · CPC title

• B02C1/10 Primary

  Shape or construction of jaws · CPC title

• B02C1/04

  with single-acting jaws · CPC title