Head bolt tightening tool for a cone crusher head assembly

• US 9,393,678 B2
• Filed: 09/14/2012
• Issued: 07/19/2016
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: Metso Outotec Finland OY (Metso Outotec Oyj)
• Original Assignee: Metso Minerals (France) SA
• Inventors: Berthier, Romain
• Primary Examiner(s): SCRUGGS, ROBERT J
• Application Number:
  US13/615,812
• Publication Number:
  US 20140076113A1
• Time in Patent Office: 1,404 Days
• Field of Search: 814/62, 814/33, 269/47, 269/289, 269/292, 269/297
• US Class Current: 1/1
• CPC Class Codes: B25B 11/00 Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders for holding or positioning work for welding, soldering, or cutting by applying heat locally B23K37/04; specially adapted to machine tools B23Q3/00
• CPC Class Codes: B25B 21/005 driven by a radially acting hydraulic or pneumatic piston
• CPC Class Codes: B25B 23/0078 Reaction arms
• CPC Class Codes: B25B 23/0085 Counterholding devices

Abstract

A head bolt tightening tool for a cone crusher head assembly includes a support which is able to support the head assembly non-rotatably on the support, and a reaction arm equipment which is fitted to the support and which is able to hold a head bolt tightening wrench non-rotatably relative to the support.

Claims

1. A head bolt tightening tool comprising:

a support having a support surface configured to support a cone crusher head assembly non-rotatably on the support surface;

a reaction arm fitted to the support and configured to hold a head bolt tightening wrench non-rotatably relative to the support; and

rotation preventing means mountable to the support and configured to prevent rotation of the cone crusher head assembly when supported on the support surface,

wherein the rotation preventing means is adjustable laterally relative to a rotational axis of the cone crusher head assembly to accommodate various cone crusher head assembly sizes.

2. The tool according to claim 1, further comprising a plurality of pins configured to be placed in holes in the cone crusher head assembly and a plurality of pin holes in the support surface of the support.

3. The tool according to claim 2, wherein the support surface comprises the plurality of pin holes for lower portions of the pins at prescribed distances relative to each other corresponding to the sizes of various cone crusher head assembly sizes.

4. The tool according to claim 2, wherein the support comprises slides with a plurality of holes corresponding to the plurality of pin holes in the support surface.

5. The tool according to claim 2, wherein the support comprises slides with a plurality of holes corresponding to the plurality of pin holes in the support surface and the slides are lockable in the support opposite the plurality of pin holes which correspond to the size of the head involved in the tightening.

6. The tool according to claim 2, further comprising a drive sleeve configured to be placed between the head bolt and the tightening wrench.

7. The tool according to claim 2, wherein the tightening wrench is a torque wrench.

8. The tool according to claim 2, wherein the tightening wrench is a hydraulic wrench.

9. The tool according to claim 1, wherein the reaction arm comprises a mast, wherein the reaction arm is fitted to the mast.

10. The tool according to claim 9, wherein the mast is fitted to the support.

11. The tool according to claim 10, wherein the mast comprises support stages on different heights for level adjustment of the reaction arm.

12. The tool according to claim 9, wherein the mast comprises a plurality of distinct support stages on different heights for level adjustment of the reaction arm.

13. The tool according to claim 9, wherein the tightening wrench is a torque wrench.

14. The tool according to claim 9 wherein the tightening wrench is a hydraulic wrench.

15. The tool according to claim 1, wherein a mantle is mounted on the cone crusher head assembly.

16. The tool according to claim 1, further comprising a drive sleeve configured to be placed between the head bolt and the tightening wrench.

17. The tool according to claim 1, wherein the tightening wrench is a torque wrench.

18. The tool according to claim 1, wherein the tightening wrench is a hydraulic wrench.