Mounting of wear parts for vertical shaft impact crushers

Patent metadata

Field	Value
Publication number	US-9914129-B2
Application number	US-201314386607-A
Country	US
Kind code	B2
Filing date	Mar 25, 2013
Priority date	Mar 23, 2012
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

This invention relates to a wear part for the rotor of a rock crusher, the rotor including at least one outlet port, and a mounting bar, wherein the wear part is configured to engage with the mounting bar, the wear part including: a body having an upper surface and a lower surface, the body also including a surface configured to abut against the outlet port, characterized in that the wear part is configured with a channel having substantially an U-shaped cross section running between the upper surface and the lower surface of the body, the channel having a mouth and a location portion, wherein the locating portion is complementary to the width of the mounting bar; wherein the exterior surface of the bottom portion of the U-shaped cross section includes a lateral projection and abuts the outlet port in use.

First claim

What we claim is:

1. A wear part assembly for a rock crusher, wherein the crusher includes a rotor body having an inlet port, a top plate and a bottom plate and at least one outlet port between the plates, the assembly comprising:
at least one wear part, wherein the wear part includes a body having an upper surface and a lower surface, the body also including an exterior surface;
a mounting bar configured for use with the at least one wear part, wherein the mounting bar includes a head and a shaft wherein the shaft is dimensioned to pass through a locating portion of the wear part,
wherein the wear part is configured with a channel running between the upper surface and the lower surface of the body, the channel having a mouth and a locating portion, wherein the locating portion is complementary to the width of the mounting bar, wherein the mouth of the channel is narrower than a width of the shaft of the mounting bar, wherein the exterior surface of the body is configured to abut a substantially vertical surface of the outlet port such that, in use, the mouth of the wear part faces substantially away from the inlet port.

2. The wear part assembly of claim 1 wherein the foot of the mounting bar engages with the bottom plate of the rotor body of the rock crusher.

3. The wear part assembly as claimed in claim 1 wherein the wear part is segmented.

4. The wear part assembly as claimed in claim 1 wherein the wear part is a rotor tip.

5. The wear part assembly as claimed in claim 1 wherein the wear part is a cavity wear plate.

6. The wear part assembly of claim 1 wherein the head of the mounting bar engages with the top plate of the rotor body of the rock crusher.

7. The wear part assembly of claim 1 wherein the mounting bar includes a foot.

8. A rock crusher, the crusher including a rotor, wherein the rotor includes:
at least one wear part, wherein the wear part includes a body having an upper surface and a lower surface, and wherein the body also includes an exterior surface;
a mounting bar for the wear part;
a top plate, wherein the top plate includes an aperture for the mounting bar;
a bottom plate;
an inlet port; and
at least one outlet port between the plates,
wherein the wear part is configured with a channel running between the upper surface and the lower surface of the body, the channel having a mouth and a locating portion, wherein the locating portion is complementary to the width of the mounting bar, and wherein the exterior surface of the body is configured to abut a substantially vertical surface of the outlet port such that, in use, the mouth of the wear part faces substantially away from the inlet port.

9. A rotor for a rock crusher, wherein the rotor includes:
at least one wear part, wherein the wear part includes a body having an upper surface and a lower surface and wherein the body also includes an exterior surface;
a mounting bar for the wear part;
a top plate, wherein the top plate includes an aperture for the mounting bar, and
a bottom plate,
an inlet port; and
at least one outlet port between the plates,
wherein the wear part is configured with a channel running between the upper surface and the lower surface of the body, the channel having a mouth and a locating portion, wherein the locating portion is complementary to the width of the mounting bar, and wherein the exterior surface of the body is configured to abut a substantially vertical surface of the outlet port such that, in use, the mouth of the wear part faces substantially away from the inlet port.

10. A mineral material processing plant, wherein the plant includes the rock crusher of claim 8 .

11. A method of assembling a wear part assembly for use in a rotor for a rock crusher, wherein the rotor includes a top plate, the top plate configured with an aperture for a mounting bar, and a bottom plate, an inlet port and an outlet port
the wear part assembly including:
a wear part, wherein the wear part includes a body having an upper surface and a lower surface and is configured with a channel running between the upper surface and the lower surface of the body, the channel having a mouth and a locating portion, and wherein the exterior surface of the body is configured to abut a substantially vertical surface of the outlet port such that, in use, the mouth of the wear part faces substantially away from the inlet port;
a mounting bar, wherein the mounting bar includes a head and a shaft, wherein the shaft is dimensioned to pass through the locating portion of the channel of the wear part, the method comprising the steps of:
a) placing the wear part between the top and base plates of the rotor and abutting the vertical surface of the outlet port such that the channel of the body of the wear part is substantially in vertical alignment with the aperture of the top plate, and
b) passing the mounting bar through the aperture of the top plate and into the locating portion of the channel, thereby locking the wear part in place relative to the rotor.

12. A method of assembling a wear part assembly for use in a rotor for a rock crusher, wherein the rotor includes a top plate, the top plate configured with an aperture for a mounting bar and wherein the aperture runs between an upper surface of the top plate and a lower surface of the top plate, and a bottom plate, an inlet port and an outlet port
the wear part assembly including:
a wear part, wherein the wear part includes a body having an upper surface and a lower surface and is configured with a channel running between the upper surface and the lower surface of the body, the channel having a mouth and a locating portion, and wherein the exterior surface of the body is configured to abut a vertical surface of the outlet port such that, in use, the mouth of the wear part faces substantially away from the inlet port;
a mounting bar, wherein the mounting bar includes a head and a shaft, wherein the shaft is dimensioned to pass through the locating portion of the channel of the wear part, the method comprising the steps of:
a) placing the wear part between the top and base plates and abutting the vertical surface of the outlet port of the rotor such that the channel of the body of the wear part is substantially in vertical alignment with the aperture of the top plate, and
b) tilting the mounting bar away from the vertical and passing the head of the mounting bar through the aperture of the top plate from its lower surface, and
c) tilting the mounting bar towards the vertical and into the locating portion of the channel, thereby locking the wear part in place relative to the rotor.

Assignees

• Metso Minerals Inc

Inventors

• Clint Hackworth
• Prem Chandrasekaran
• Shane Omundsen
• Joseph Dew

Classifications

• Y10T29/49959

  Nonresilient fastener · CPC title

• B02C2013/2808

  the beater elements are attached to disks mounted on a shaft · CPC title

• B02C13/1835 Primary

  by means of beater or impeller elements fixed in between an upper and lower rotor disc · CPC title

• B02C13/2804

  the beater elements being rigidly connected to the rotor · CPC title