Spider wall shield

Patent metadata

Field	Value
Publication number	US-10434516-B2
Application number	US-201415517873-A
Country	US
Kind code	B2
Filing date	Oct 9, 2014
Priority date	Oct 9, 2014
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.

First claim

The invention claimed is:

1. A gyratory crusher spider wall shield arranged to be releasably mounted to a radially inward facing face of a spider positioned on a top shell of a gyratory crusher, the wall shield comprising:
a spider protection wall arranged to be positioned over the inward facing face of the spider;
a rear wall extending upwardly from and projecting transverse to the spider protection wall, the rear wall having an inner face orientated radially inwards and an outer face orientated radially outward, the rear wall representing a radially outermost part of the wall shield;
at least one locating foot projecting downwardly from the spider protection wall to contact the inward face of the spider; and
at least one attachment element provided at the rear wall to attach the wall shield to a fixating ring via the outer face, the fixating ring being positionable on top of and at a perimeter of the spider to surround at least part of the spider and the wall shield.

2. The shield as claimed in claim 1 , further comprising at least one locating foot projecting downwardly from a lower portion of the rear wall to contact an upper region of the spider.

3. The shield as claimed in claim 1 , wherein the rear wall is curved along its length forming a curvature, the curvature corresponding to an arc of a circle.

4. The shield as claimed in claim 3 , further comprising a first and second locating foot provided respectively at a first and a second end of the rear wall.

5. The shield as claimed in claim 4 , wherein the at least one attachment element includes a hole.

6. The shield as claimed in claim 5 , further comprising a first and a second hole positioned respectively towards or at each of the first and second ends of the length of the rear wall.

7. The shield as claimed in claim 6 , wherein the spider protection wall and the rear wall are formed integrally.

8. The shield as claimed in claim 1 , wherein a length of the wall shield in a circumferential direction decreases from an axially uppermost region positioned at the rear wall and an axially lowermost end positioned at the spider protection wall.

9. The shield as claimed in claim 1 , wherein the rear wall includes an aperture, notch or hooked member to enable the shield to be connected to a lifting device.

10. A gyratory crusher spider protection assembly comprising:
a plurality of wall shields arranged to be releasably mounted over an inward face of a spider positioned on a top shell of a gyratory crusher, each wall shield including a spider protection wall arranged to be positioned over the inward face of the spider, a rear wall extending upwardly from and projecting transverse to the spider protection wall, the rear wall having an inner face orientated radially inwards and an outer face orientated radially outward, the rear wall representing a radially outermost part of the wall shield, and at least one attachment element provided at the rear wall to attach the wall shield to the outer face;
a fixating ring arranged to be positioned on top of and at a perimeter of the spider to extend circumferentially around at least part of the spider and the wall shields, the at least one attachment element attaching the wall shield to the fixating ring via the outer face; and
a plurality of fixation elements securable respectively to each of the attachment elements to releasably fix the wall shields to the fixating ring such that the wall shields and the fixating ring are configured to form a unitary assembly.

11. The assembly as claimed in claim 10 , further comprising anchorage elements to secure the fixating ring to an upper region of the spider at the perimeter of the spider.

12. The assembly as claimed in claim 10 , further comprising a plurality of locating feet extending downwardly from the rear wall to contact the upper region of the spider at the perimeter of the spider.

13. The assembly as claimed in claim 10 , further comprising a plurality spider arm shields arranged to be releasably mounted to a plurality of spider arms that extend radially outward from a central hub that forms a part of the spider, each one of the arm shields including a tunnel having a roof and sidewalls for positioning over and at least partially around each spider arm to protect upper and side faces of each arm, the tunnel having a radially inner end arranged to be positioned at the central hub and a radially outer end arranged to be positioned at a perimeter of the spider, a rear wall projecting upwardly from the radially outer end of the tunnel, the rear wall having an inner face orientated radially inwards towards the tunnel and an outer face orientated radially outward away from the tunnel, the rear wall representing a radially outermost part of the arm shield, and a plurality of attachment elements provided at the rear wall to attach the arm shields to the fixating ring via the outer face, such that the arm shields, the wall shields and the fixating ring are configured to form a unitary assembly.

14. A gyratory crusher comprising:
a spider having a central hub and a plurality of spider arms extending radially outward from the central hub towards an outer perimeter of the spider;
a material feed hopper mounted axially above the spider; and
a spider protection assembly including a plurality of wall shields arranged to be releasably mounted over an inward face of a spider positioned on a top shell of a gyratory crusher, each wall shield including a spider protection wall arranged to be positioned over the inward face of the spider, a rear wall extending upwardly from and projecting transverse to the spider protection wall, the rear wall having an inner face orientated radially inwards and an outer face orientated radially outward, the rear wall representing a radially outermost part of the wall shield, and at least one attachment element provided at the rear wall to attach the wall shield the outer face, and a fixating ring being arranged to be positioned on top of and at a perimeter of the spider to extend circumferentially around at least part of the spider and the wall shields, the at least one attachment element attaching the wall shield to the fixating ring via the outer face, and a plurality of fixation elements securable respectively to each of the attachment elements to releasably fix the wall shields to the fixating ring such that the wall shields and the fixating ring are configured to form a unitary assembly, wherein the fixating ring is positioned axially intermediate the spider and the material feed hopper.

Assignees

• Sandvik Intellectual Property

Inventors

• Hallberg Anders
• Larsson Mikael M

Classifications

• B02C2/06 Primary

  and with top bearing {(B02C2/042 takes precedence)} · CPC title

• F16D65/00

  Parts or details (similar members for clutches F16D13/58) · CPC title

• F16D2055/0037

  Protective covers · CPC title

• B02C2/00 Primary

  Crushing or disintegrating by gyratory or cone crushers {(with non-coaxial discs with intersecting axes B02C7/005)} · CPC title