Magnetic wear device

Abstract

A magnetic wear device including a resilient member and a magnetic member for protecting a wear surface on a material handling device. The resilient member consisting of an upper portion and a lower portion integrally formed together. The upper portion having a top exterior surface, and the lower portion having a bottom surface for contacting with a wear surface on a material handling device. The bottom surface of the lower portion being formed with a recess for receiving and coupling the magnetic member to the resilient member. The magnetic member having an outer magnetic surface for releaseably securing the magnetic member and the resilient member to the wear surface of the material handling device. The magnetic wear device further including a shear plate having an outer edge and an inner circular edge. The outer edge is constructed with one or more notched edges and the inner circular edge defines an aperture for at least partially receiving the resilient member and the magnetic member therein. The magnetic wear device further including a release means provided within a bore formed through and along the central axes of the resilient member and the magnetic member for removing the magnetic wear device from the wear surface of the material handling device. The release means including a cylinder member and a jack screw adapted to be threadably received and advanced within the cylinder member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which:

FIG. 1 is a perspective view of a magnetic wear device made in accordance with a preferred embodiment of the invention, shown releasably secured to a wear surface on a material handling device;

FIG. 2 is a front perspective view of the subject magnetic wear device of FIG. 1;

FIG. 3 is a bottom perspective view of the subject magnetic wear device showing the bottom surface and the magnetic member;

FIG. 4 is a top plan view of the subject magnetic wear device showing the planar top edge of the resilient member;

FIG. 5 is an exploded view of the components of the magnetic wear device in accordance with a preferred embodiment of the present invention;

FIG. 6 is a side perspective view of the subject magnetic wear device showing the alignment of the resilient member and the magnetic member along the central axis A-A;

FIG. 7 is a sectional view of the magnetic wear device along line B-B of FIG. 4;

FIG. 8 is a sectional view of the magnetic wear device along the detail C-C of FIG. 7;

FIG. 9 is a top plan view of a shear plate for use in conjunction with the magnetic wear device in accordance with a second embodiment of the invention;

FIG. 10 is a side view of the subject shear plate of FIG. 9;

FIG. 11 is a front perspective view of the subject shear plate of FIG. 9;

FIG. 12 is a plan view of the subject shear plate secured to the wear surface of the material handling device by one or more fillet welds;

FIG. 13 is a front perspective of the subject shear plate of FIG. 12;

FIG. 14 is a sectional view of the subject shear plate along line D-D of FIG. 12;

FIG. 15 is a front perspective of the subject magnetic wear device arranged within the shear plate of FIG. 13;

FIG. 16 is a plan view of a release means provided within the subject magnetic wear device in accordance with a third embodiment of the invention;

FIG. 17 is a perspective sectional view of the subject magnetic wear device along line E-E of FIG. 16 showing the components of the release means;

FIG. 18 is a side sectional view of the subject magnetic wear device along line E-E of FIG. 16 showing the components of the release means;

FIG. 19 is a top perspective exploded view of the components of the subject magnetic wear device in accordance with the third embodiment of the present invention;

FIG. 20 is a bottom perspective exploded view of the components of the subject magnetic wear device in accordance with the third embodiment of the present invention;

FIG. 21 is a plan view of the subject magnetic wear device secured to the wear surface of the material handling device using the shear plate and release means of the second and third embodiments of the present invention;

FIG. 22 is a side sectional view of the release means along the detail F-F of FIG. 17;

FIG. 23 is a side sectional view of the subject release means along the detail G-G of FIG. 21; and

FIG. 24 is a front perspective view of the subject magnetic wear device of FIG. 2 showing a handle means extending from the exterior surface of the resilient member.

Claims

1. A magnetic wear device for protecting a wear surface on a material handling device, comprising: a resilient member having an upper portion and a lower portion integrally formed together, said upper portion having a top exterior surface, said lower portion having a bottom surface for contacting with the wear surface of said material handling device, said bottom surface formed with a recess; anda magnetic member received with in said recess and coupled to said resilient member, said magnetic member having an outer magnetic surface for releasably securing said resilient member to said wear surface of said material handling device.

2. The magnetic wear device as claimed in claim 1, wherein a central axis of said resilient member is aligned with a central axis of said magnetic member.

3. The magnetic wear device as claimed in claim 1, wherein said upper portion and said lower portion are adapted to be fixedly connected to each other.

4. The magnetic wear device as claimed in claim 1, said upper portion having an interior surface formed inwardly of said exterior surface, said lower portion having a top surface formed inwardly of said bottom surface and adjacent to said interior surface of said upper portion.

5. The magnetic wear device as claimed in claim 1, wherein said resilient member having a generally cylindrical outer circumferential edge extending from said exterior surface of said upper portion to said bottom surface of said lower portion.

6. The magnetic wear device as claimed in claim 4, wherein said upper portion has a generally dome-like configuration formed by said exterior surface extending radially outwardly from a planar top edge to said outer circumferential edge.

7. The magnetic wear device as claimed in claim 4, wherein said lower portion has a generally annular configuration formed by an inner circumferential edge and said outer circumferential edge, said inner circumferential edge defining an opening of said recess and terminating at a planar recessed surface.

8. The magnetic wear device as claimed in claim 1, further comprising a shear plate having an outer edge and an inner circular edge, said outer edge is adapted to be secured to said wear surface of said material handling device, said inner circular edge defining an aperture for at least partially receiving said resilient member and said magnetic member therein.

9. The magnetic wear device as claimed in claim 8, wherein said outer edge formed with one or more notched edges along, said one or more notched edges being dimensioned to receive one or more fillet welds, said fillet welds secure said one or more notched edges to said wear surface of said material handling device.

10. The magnetic wear device as claimed in claim 8, wherein said shear plate having a bottom shear surface for positioning said shear plate adjacent to said wear surface of said material handling device, and a top shear surface for positioning said shear plate adjacent to said resilient member of said magnetic wear device.

11. The magnetic wear device as claimed in claim 1, further comprising a release means provided within a bore formed through and along the central axes of said resilient member and said magnetic member, said release means including a cylinder member and a jack screw adapted to be threadably received within said cylinder member.

12. The magnetic wear device as claimed in claim 11, wherein said bore includes an upper bore and a lower bore having a greater cross-sectional area than said upper bore, said upper bore extending through said resilient member, said lower bore extending through said magnetic member.

13. The magnetic wear device as claimed in claim 12, wherein said cylinder member includes a tubular body having a threaded interior and an outer flange extending from said tubular body, said tubular body being dimensioned to be received within said upper bore, said outer flange being dimensioned to be received within said lower bore.

14. The magnetic wear device as claimed in claim 13, wherein said jack screw is inserted into said upper bore and threadably advanced along said threaded interior of said tubular body towards said lower bore, whereby the advancement of said jack screw along said threaded interior and into said wear surface removes said magnetic wear device from said material handling device.

15. The magnetic wear device as claimed in claim 7, wherein said magnetic member has a generally cylindrical shape constructed with an outer magnetic surface, an inner magnetic surface and a circumferential magnetic edge, said outer magnetic surface is positioned parallel to said wear surface, said inner magnetic surface is positioned parallel to said recessed surface, and said circumferential magnetic edge is positioned parallel to said inner circumferential edge of said lower portion.

16. The magnetic wear device as claimed in claim 15, wherein said circumferential magnetic edge is spaced apart from said inner circumferential edge of said lower portion a distance less than 1.0 millimeters.

17. The magnetic wear device as claimed in claim 15, wherein said circumferential magnetic edge is spaced apart from said inner circumferential edge of said lower portion a distance less than 0.5 millimeters.

18. The magnetic wear device as claimed in claim 15, wherein said outer magnetic surface is spaced apart from said wear surface of said material handling device a distance less than 1.0 millimeters.

19. The magnetic wear device as claimed in claim 15, wherein said outer magnetic surface is spaced apart from said wear surface of said material handling device a distance less than 0.5 millimeters.

20. The magnetic wear device as claimed in claim 1, wherein said resilient member is manufactured from a ferromagnetic material.

21. The magnetic wear device as claimed in claim 1, wherein said magnetic member is manufactured from a rare earth neodymium-iron boron magnetic material.