Paver conveyor wear plates

Patent metadata

Field	Value
Publication number	US-11549224-B2
Application number	US-202016835842-A
Country	US
Kind code	B2
Filing date	Mar 31, 2020
Priority date	Mar 31, 2020
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

A wear plate for the conveyor of a paving machine has a bend at one axial end, an oblique flat surface at another axial end, a tab with an aperture extending from a side surface, or a tab extending from a side surface with a tapered configuration.

First claim

What is claimed is:

1. A paving machine comprising:
a frame;
a screed;
a hopper supported on the frame and configured to receive paving material;
a feeder including a feeder bed that extends from the hopper to the screed;
a conveyor that is disposed above the feeder bed for conveying the paving material to the feeder; and
a feeder protection system including at least a first pair of wear plates covering the feeder bed, wherein each of the pair of wear plates include at least one tab defining a tab aperture,
wherein the feeder bed defines a feeder bed aperture that is aligned with the tab aperture.

2. The paving machine of claim 1 wherein the frame includes a frame member defining a slot that is configured to receive the at least one tab.

3. The paving machine of claim 2 wherein the frame member is a side frame member.

4. The paving machine of claim 1 wherein the feeder protection system further comprises a chain guard defining a bottom aperture that is aligned with the tab aperture.

5. The paving machine of claim 4 wherein the feeder bed aperture, the tab aperture, and the bottom aperture of the chain guard are configured to receive the same fastener.

6. The paving machine of claim 5 wherein the conveyor defines a direction of travel, each of the pair of wear plates defines a longitudinal axis that is parallel to the direction of travel, and each of the wear plates defines a first axial end including a first straight surface, and a second axial end including a bend that defines a radius of curvature.

7. The paving machine of claim 6 wherein the radius of curvature of the bend ranges from 80.0 mm to 145.0 mm.

8. The paving machine of claim 6 wherein the first straight surface of the first axial end forms an oblique angle to the direction of travel of the conveyor.

9. The paving machine of claim 6 wherein the tab aperture is either a U-shaped open slot or half a U-shaped open slot.

10. A wear plate for use with a paving machine comprising:
a body defining a longitudinal axis, and a transverse axis that is perpendicular thereto;
a first axial end, a second axial end, a first side surface extending from the first axial end to the second axial end, and a second side surface extending from the first axial end to the second axial end;
a first plurality of tabs disposed on the first side surface; and
a second plurality of tabs disposed on the second side surface;
wherein at least one tab of the first plurality of tabs defines a tab aperture, and at least one of the second plurality of tabs defines a tab aperture,
wherein the at least one tab of the first plurality of tabs extends transversely form the first side surface to a first free end, and includes a first tapered surface extending from the first side surface to the first free end, and a second tapered surface extending from the first side surface to the first free end, and the first tapered surface and the second tapered surface form an oblique angle with the transverse axis.

11. The wear plate for use with a paving machine of claim 10 wherein the tab aperture has a U-shaped configuration that is open on the first free end.

12. The wear plate for use with a paving machine of claim 10 wherein the first plurality of tabs are staggered axially relative to the second plurality of tabs.

13. The wear plate of claim 10 wherein the at least one tab of the first plurality of tabs is disposed proximate to the first axial end, extending transversely form the first side surface to a first free end, and includes a first tapered surface extending from the first side surface to the first free end, forming an oblique angle with the transverse axis, the tab aperture has a half U-shaped configuration that is open on the first free end, and the at least one tab of the second plurality of tabs is a solid tab that is disposed proximate to the second axial end of the wear plate.

14. A wear plate for use with a paving machine comprising:
a body defining a longitudinal axis, and a transverse axis that is perpendicular thereto;
a first axial end, a second axial end, a first side surface extending from the first axial end to the second axial end, and a second side surface extending from the first axial end to the second axial end;
a first plurality of tabs disposed on the first side surface; and
a second plurality of tabs disposed on the second side surface;
wherein the first axial end includes a first oblique flat surface relative to the transverse axis forming an acute angle therewith, and the second axial end includes a bend defining a radius of curvature in a plane perpendicular to the transverse axis,
wherein the acute angle ranges from 5.0 degrees to 15.0 degrees and the radius of curvature ranges from 80.0 mm to 145.0 mm.

15. The wear plate for use with a paving machine of claim 14 wherein at least one tab of the first plurality of tabs defines a tab aperture, and at least one of the second plurality of tabs defines a tab aperture.

16. The wear plate for use with a paving machine of claim 15 wherein the at least one tab of the first plurality of tabs extends transversely form the first side surface to a first free end, and includes a first tapered surface extending from the first side surface to the first free end, and a second tapered surface extending from the first side surface to the first free end, and the first tapered surface and the second tapered surface form an included oblique angle with each other.

17. The wear plate for use with a paving machine of claim 15 wherein
the at least one tab of the first plurality of tabs is disposed proximate to the first axial end, extending transversely form the first side surface to a first free end, and includes a first tapered surface extending from the first side surface to the first free end, forming an obtuse angle with the free end, the tab aperture has a half U-shaped configuration that is open on the first free end, and the at least one tab of the second plurality of tabs is a solid tab that is disposed proximate to the second axial end of the wear plate.

Assignees

• Caterpillar Paving Products Inc

Inventors

• Thiesse Chad M
• Berns Reece A
• Bryan Dustin Wade

Classifications

• E01C19/187

  solely for spreading-out or striking-off deposited mixtures, e.g. spread-out screws, strike-off boards · CPC title

• B65G19/18

  Details · CPC title

• B65G15/12

  with two or more endless belts · CPC title

• B65G19/22

  Impellers, e.g. push-plates, scrapers; Guiding means therefor · CPC title

• B65G19/04 Primary

  for moving bulk material in open troughs or channels · CPC title