A gyratory crusher uses a new head nut attachment apparatus. The gyratory crusher has a shell, a shaft disposed within the shell, a mantle covering a portion of the shaft, a head nut located above the mantle, and a sleeve between the head nut and the shaft. The sleeve is maintained in position on the shaft by means of a tapered contact surface between the sleeve and the shaft, and the head nut is threaded onto the sleeve.
What is claimed is:
1. An attachment apparatus in combination with a gyratory crusher including a shaft and a mantle disposed about the shaft, the attachment apparatus comprising: a sleeve disposed about the shaft defining a contact surface between the sleeve and the shaft; and a head nut threaded onto the sleeve; wherein the radius of the shaft increases in an upward direction over at least part of the contact surface, whereby the head nut retains the mantle with respect to the shaft in at least one direction.
2. The attachment apparatus of claim 1 wherein the sleeve is made of steel.
3. The attachment apparatus of claim 1 wherein the sleeve is fixed to the shaft by means of a shrink fit.
4. The attachment apparatus of claim 1 wherein the sleeve is a single piece ring.
5. The attachment apparatus of claim 4 wherein the sleeve has an upper end, and a lower end, the upper end having an inner diameter of 25.00 inches, and the lower end having an inner diameter of 24.95 inches.
6. The attachment apparatus of claim 1 wherein the contact surface has a 1:315 taper from vertical.
7. The attachment apparatus of claim 1 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
8. The attachment apparatus of claim 1 wherein the contact surface extends about eight inches.
9. The attachment apparatus of claim 1 wherein the sleeve is disposed directly above the mantle.
10. An attachment apparatus in combination with a gyratory crusher including a shaft and a mantle disposed about the shaft, the attachment apparatus comprising: a sleeve disposed about the shaft; and a head nut threaded onto the sleeve; wherein the sleeve is a continuous ring, whereby the head nut prevents upward motion of the mantle.
11. The attachment apparatus of claim 10, further comprising: a contact surface between the sleeve and the shaft; wherein the shaft is tapered outwardly in an upward direction over at least part of the contact surface.
12. The attachment apparatus of claim 10 wherein the sleeve is made of steel.
13. The attachment apparatus of claim 10 wherein the sleeve is releasably secured to the shaft by using a heat shrink method.
14. The attachment apparatus of claim 11 wherein the contact surface has a 1:315 taper from vertical.
15. The attachment apparatus of claim 10 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
16. The attachment apparatus of claim 11 wherein the contact surface extends about eight inches.
17. The attachment apparatus of claim 10 wherein the sleeve is disposed at a position directly above the mantle.
18. A gyratory crusher, comprising: a shell; a shaft disposed within the shell; a mantle covering a portion of the shaft; a head nut located above the mantle; and a sleeve between the head nut and the shaft; wherein the sleeve is maintained in position on the shaft by means of a tapered contact surface between the sleeve and the shaft.
19. The gyratory crusher of claim 18 wherein the sleeve is made of steel.
20. The gyratory crusher of claim 18 wherein the sleeve is a continuous ring of material.
21. The gyratory crusher of claim 18 wherein the head nut is threaded onto the sleeve.
22. The gyratory crusher of claim 18 wherein the sleeve is affixed to the shaft by means of a shrink fit.
23. The gyratory crusher of claim 18 wherein the shaft has a smooth surface in the range of the contact surface.
24. The gyratory crusher of claim 18 wherein the contact surface has a 1:315 taper from vertical.
25. The gyratory crusher of claim 18 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
26. The gyratory crusher of claim 18 wherein the contact surface extends about eight inches.
What is claimed is:
1. An attachment apparatus in combination with a gyratory crusher including a shaft and a mantle disposed about the shaft, the attachment apparatus comprising: a sleeve disposed about the shaft defining a contact surface between the sleeve and the shaft; and a head nut threaded onto the sleeve; wherein the radius of the shaft increases in an upward direction over at least part of the contact surface, whereby the head nut retains the mantle with respect to the shaft in at least one direction.
2. The attachment apparatus of claim 1 wherein the sleeve is made of steel.
3. The attachment apparatus of claim 1 wherein the sleeve is fixed to the shaft by means of a shrink fit.
4. The attachment apparatus of claim 1 wherein the sleeve is a single piece ring.
5. The attachment apparatus of claim 4 wherein the sleeve has an upper end, and a lower end, the upper end having an inner diameter of 25.00 inches, and the lower end having an inner diameter of 24.95 inches.
6. The attachment apparatus of claim 1 wherein the contact surface has a 1:315 taper from vertical.
7. The attachment apparatus of claim 1 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
8. The attachment apparatus of claim 1 wherein the contact surface extends about eight inches.
9. The attachment apparatus of claim 1 wherein the sleeve is disposed directly above the mantle.
10. An attachment apparatus in combination with a gyratory crusher including a shaft and a mantle disposed about the shaft, the attachment apparatus comprising: a sleeve disposed about the shaft; and a head nut threaded onto the sleeve; wherein the sleeve is a continuous ring, whereby the head nut prevents upward motion of the mantle.
11. The attachment apparatus of claim 10, further comprising: a contact surface between the sleeve and the shaft; wherein the shaft is tapered outwardly in an upward direction over at least part of the contact surface.
12. The attachment apparatus of claim 10 wherein the sleeve is made of steel.
13. The attachment apparatus of claim 10 wherein the sleeve is releasably secured to the shaft by using a heat shrink method.
14. The attachment apparatus of claim 11 wherein the contact surface has a 1:315 taper from vertical.
15. The attachment apparatus of claim 10 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
16. The attachment apparatus of claim 11 wherein the contact surface extends about eight inches.
17. The attachment apparatus of claim 10 wherein the sleeve is disposed at a position directly above the mantle.
18. A gyratory crusher, comprising: a shell; a shaft disposed within the shell; a mantle covering a portion of the shaft; a head nut located above the mantle; and a sleeve between the head nut and the shaft; wherein the sleeve is maintained in position on the shaft by means of a tapered contact surface between the sleeve and the shaft.
19. The gyratory crusher of claim 18 wherein the sleeve is made of steel.
20. The gyratory crusher of claim 18 wherein the sleeve is a continuous ring of material.
21. The gyratory crusher of claim 18 wherein the head nut is threaded onto the sleeve.
22. The gyratory crusher of claim 18 wherein the sleeve is affixed to the shaft by means of a shrink fit.
23. The gyratory crusher of claim 18 wherein the shaft has a smooth surface in the range of the contact surface.
24. The gyratory crusher of claim 18 wherein the contact surface has a 1:315 taper from vertical.
25. The gyratory crusher of claim 18 wherein the head nut has an inner diameter of about 26 inches and an outer diameter of about 31 inches.
26. The gyratory crusher of claim 18 wherein the contact surface extends about eight inches.