Low impact shaft remover

• US 6,886,227 B1
• Filed: 03/13/2003
• Issued: 05/03/2005
• Est. Priority Date: 03/13/2003
• Status: Expired due to Fees

• Current Assignee: Terry L. Hedrick
• Original Assignee: Terry L. Hedrick
• Inventors: Hedrick, Terry L.
• Primary Examiner(s): Wilson, Lee D.
• Application Number:
  US10/388,119
• Time in Patent Office: 782 Days
• Field of Search: 292/52, 292/63, 292/55, 292/80, 292/82, 269/3, 269/6
• US Class Current: 29/252
• CPC Class Codes: B25B 27/02 for connecting objects by press fit or detaching same B25D1/16 takes precedence
• CPC Class Codes: B25B 27/023 using screws
• CPC Class Codes: Y10T 29/5383 having fluid operator
• CPC Class Codes: Y10T 29/53843 Tube, sleeve, or ferrule inserting or removing
• CPC Class Codes: Y10T 29/53878 Tubular or tube segment forms work-engager

Abstract

A low impact shaft remover apparatus that aids in the removal of a shaft attachment that has become stuck to a shaft is described. In general, the apparatus includes a main body having an open end, a hollow interior and an internal conduit located within a portion of the main body. A valve is connected to the main body and coupled to the conduit. A leading edge of the main body includes an angled wall that aids in the formation of a reservoir formed when the leading edge is connected to a surface of the shaft attachment such as a hub. A suitable lubricating fluid is inserted into the valve, through the conduit and ultimately stored in the reservoir generally around the circumference of the shaft. Pressure is then applied to the valve which pushes the fluid into any available spaces between the attachment and the shaft.

Claims

1. A shaft remover apparatus, comprising:

a main body having an open end having a leading edge, a second end and a hollow interior;

a conduit located within a portion of the main body;

an input valve connected to the main body and coupled to the conduit;

an inner wall angled from the leading edge toward the hollow interior, wherein the conduit opens on the inner wall; and

threads located on a portion of the open end.

2. The apparatus as claimed in claim 1, wherein the second end is closed.

3. The apparatus as claimed in claim 1 wherein the second end is open.

4. The apparatus as claimed in claim 1 further comprising a seal connected to the leading edge.

5. The apparatus as claimed in claim 1 wherein the main body has a cylindrical cross section.

6. The apparatus as claimed in claim 1 wherein the main body has a hexagonal cross section.

7. A system for removing a shaft from a shaft attachment, comprising:

a shaft remover apparatus, including;

a main body having an open end having a leading edge, a second end and a hollow interior;

a conduit located within a portion of the main body;

an input valve connected to the main body and coupled to the conduit; and

an inner wall angled from the leading edge toward the hollow interior, wherein the conduit opens on the inner wall; and

means to connect the shaft remover apparatus to the attachment.

8. The system as claimed in claim 7, wherein the attachment is a hub and the shaft is a constant velocity joint shaft.

9. The system as claimed in claim 8 wherein the second end is closed and the means to connect the shaft remover apparatus to the hub is a hub puller.

10. The system as claimed in claim 8 wherein the second end is open and the means to connect the shaft remover apparatus to the hub is a shaft nut.

11. A system for removing a shaft from a shaft attachment, comprising:

an inner body having a first open end having a leading edge, a second open end, a hollow interior, inner threads located on an internal surface of the inner body and outer threads located on an external surface of the inner body;

an outer body having a first open end, a second end, a hollow interior and inner threads located on an internal surface of the outer body, wherein the outer threads of the inner body are in threaded engagement with the inner threads of the outer body;

an inner chamber including the second open end of the inner body, the first open end of the outer body and the hollow interior of the outer body;

an input valve connected to the outer body;

an inner conduit located within the outer body, connected to the input valve and coupled to the chamber;

a conduit located within the inner body, the conduits being coupled to the chamber; and

an inner wall angled from the leading edge toward the hollow interior, wherein the inner body conduit opens on the inner wall.

12. The system as claimed in claim 11 wherein the second end is open.

13. The system as claimed in claim 12 further comprising:

a piston located within the chamber;

a spring in mechanical contact with the piston; and

a threaded bolt in threaded engagement with the second open end and in mechanical contact with the piston.

14. A system for removing a shaft attachment from a shaft, comprising:

a main body having an open end having a leading edge in mechanical contact with a surface of the attachment, thereby forming a reservoir, a second end and a hollow interior;

a conduit located within a portion of the main body;

an input valve connected to the main body and coupled to the conduit; and

an inner wall angled from the leading edge toward the hollow interior, wherein the conduit opens on the inner wall.

15. The system as claimed in claim 14 further comprising inner threads on an internal surface of the main body, the inner threads being in threaded engagement with threads on the shaft.

16. The system as claimed in claim 14 further comprising a shaft remover connector connected to the main body and to the attachment.

17. A shaft remover apparatus, comprising:

a main body having an open end and a conduit within a portion of the main body;

an input valve connected to the main body and coupled to the conduit; and

means to form a reservoir adjacent a leading edge of the main body, wherein the conduit opens into the reservoir.

18. The apparatus as claimed in claim 17 wherein the reservoir is formed by a recessed portion of the open end.