Wear indicator for sprocket tip

• US 10,640,299 B1
• Filed: 04/17/2019
• Issued: 05/05/2020
• Est. Priority Date: 04/17/2019
• Status: Active Grant

• Current Assignee: Flexicon Corporation
• Original Assignee: Flexicon Corporation
• Inventors: Szazdi, Jr., John Stephen
• Primary Examiner(s): Singh, Kavel
• Application Number:
  US16/386,713
• Time in Patent Office: 384 Days
• Field of Search: None
• CPC Class Codes: B65G 19/14 for moving bulk material in closed conduits, e.g. tubes
• CPC Class Codes: B65G 23/06 with projections engaging abutments on belts or chains, e.g. sprocket wheels
• CPC Class Codes: B65G 23/24 Gearing between driving motor and belt- or chain-engaging elements contained in drums, rollers or wheels B65G23/08
• CPC Class Codes: B65G 43/00 Control devices, e.g. for safety, warning or fault-correcting
• CPC Class Codes: B65G 43/02 detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
• CPC Class Codes: F16H 2057/012 of gearings
• CPC Class Codes: F16H 55/12 with body or rim assembled out of detachable parts
• CPC Class Codes: F16H 55/30 Chain-wheels
• CPC Class Codes: F16H 57/01 Monitoring wear or stress of gearing elements, e.g. for triggering maintenance

Abstract

A sprocket tip for a sprocket assembly is disclosed. The sprocket tip includes a body defining at least one circumferential end face forming an engagement face configured to drivingly engage a traction system. A void is defined on an internal face of the body defined on an underside of the at least one circumferential end face.

Claims

1. A sprocket tip for a sprocket assembly, the sprocket tip comprising:

a body defining at least one circumferential end face defining an engagement face configured to drivingly engage a traction system, and

a void defined on an internal face of the body positioned on an underside of the at least one circumferential end face.

2. The sprocket tip of claim 1, wherein in a worn condition of the sprocket tip, the engagement face is worn down to expose the void.

3. A sprocket assembly comprising the sprocket tip of claim 1, the sprocket assembly further comprising a sensor arranged adjacent to the sprocket tip, and the sensor is configured to detect the void being exposed through the engagement face.

4. The sprocket tip of claim 1, wherein a thickness of the body at a location of the void is 10%-50% of a thickness of the at least one circumferential end face at a location away from the void.

6. The sprocket tip of claim 1, wherein the sprocket tip is connected to a sprocket arm.

7. The sprocket tip of claim 1, wherein the sprocket tip defines a channel configured to receive a traction element.

8. The sprocket tip of claim 7, wherein the void is positioned radially inward from the channel.

9. The sprocket tip of claim 1, wherein the void has a tapered cylindrical profile.

10. The sprocket tip of claim 1, wherein the void is filled with a marker.

11. The sprocket tip of claim 10, wherein the marker is a different color than the body.

5. A sprocket tin for a sprocket assembly, the sprocket tip comprising:

a body defining at least one circumferential end face defining an engagement face configured to drivingly engage a traction system, and

a void defined on an internal face of the body positioned on an underside of the at least one circumferential end face, wherein the body is formed as two identical sprocket tip halves, and each sprocket tip half of the sprocket tip halves partially defines the void.

12. A method of detecting a wear condition of a sprocket tip, the method comprising:

providing at least one sprocket tip including;

a body defining at least one circumferential end face defining an engagement face configured to drivingly engage a traction system, and

a void defined on an internal face of the body on an underside of the at least one circumferential end face;

repeatedly engaging the at least one sprocket tip against the traction system to drive the traction system;

monitoring the engagement face of the at least one sprocket tip; and

replacing the at least one sprocket tip when the engagement face of the at least one sprocket tip exposes the void.

13. The method of claim 12, further comprising providing a sensor positioned adjacent to the at least one sprocket tip.

14. The method of claim 13, further comprising generating a signal via the sensor when the void is exposed.

15. The method of claim 12, wherein a thickness of the body at a location of the void is 10%-50% of a thickness of the at least one circumferential end face in a location away from the void.

16. The method of claim 12, wherein the sprocket tip defines a channel configured to receive a traction element.

17. The method of claim 12, wherein the at least one sprocket tip is formed as two identical sprocket tip halves, and each sprocket tip half of the sprocket tip halves partially defines the void.

18. The method of claim 12, further comprising filling the void with a marker.

19. The method of claim 12, wherein the traction system includes a cable with a plurality of conveying discs or a chain link with a plurality of conveying discs.