Cutting device with wear elements

Patent metadata

Field	Value
Publication number	US-2017342829-A1
Application number	US-201715606651-A
Country	US
Kind code	A1
Filing date	May 26, 2017
Priority date	May 27, 2016
Publication date	Nov 30, 2017
Grant date	—

Abstract

A cutting device for a cutting head includes a disc, a plurality of cutting elements secured to the disc, and a plurality of wear elements secured to the disc. The disc rotates about an axis of rotation, and the disc includes a peripheral edge. The cutting elements are spaced apart from one another along the peripheral edge of the disc. The wear elements are spaced apart from one another and from the cutting elements.

First claim

What is claimed is:

1 . A cutting device for cutting rock, the cutting device comprising:
a disc rotating about an axis of rotation, the disc including a peripheral edge; a plurality of cutting elements secured to the disc, the cutting elements spaced apart from one another along the peripheral edge of the disc; and a plurality of wear elements secured to the disc, the wear elements spaced apart from one another and from the cutting elements.

2 . The cutting device of claim 1 , wherein the wear elements are constructed from a material having a hardness greater than a hardness of the cutting elements.

3 . The cutting device of claim 1 , wherein the cutting elements protrude from the disc in a first direction by a first distance, and wherein the wear elements protrude from the disc in the first direction by a second distance less than the first distance.

4 . The cutting device of claim 3 , wherein the first direction is oriented substantially parallel to the axis of rotation.

5 . The cutting device of claim 1 , wherein each wear element is positioned between adjacent cutting elements.

6 . The cutting device of claim 1 , wherein at least some of the wear elements are positioned on the peripheral edge of the disc, each wear element on the peripheral edge being positioned between two adjacent cutting elements.

7 . The cutting device of claim 1 , wherein at least some of the wear elements are spaced apart from the peripheral edge and positioned in a plane oriented substantially perpendicular to the axis of rotation.

8 . The cutting device of claim 1 , wherein at least some of the wear elements are spaced apart from the peripheral edge and positioned on a peripheral surface extending around the axis of rotation.

9 . A cutting head for removing rock from a rock wall, the cutting head comprising:
a boom configured to be supported on a frame; a drive mechanism; and a cutting device supported on the boom and driven by the drive mechanism, the cutting device including,
a disc rotating about an axis of rotation, the disc including a peripheral edge,
a plurality of cutting elements secured to the disc, the cutting elements spaced apart from one another along the peripheral edge of the disc, and
a plurality of wear elements secured to the disc, the wear elements spaced apart from one another and from the cutting elements.

10 . The cutting head of claim 9 , wherein the wear elements have a hardness greater than a hardness of the cutting elements.

11 . The cutting head of claim 9 , wherein the cutting elements protrude from a surface of the disc in a first direction by a first distance, and the wear elements protrude from the surface of the disc in the first direction by a second distance less than the first distance.

12 . The cutting head of claim 11 , wherein the first direction is oriented substantially parallel to the axis of rotation.

13 . The cutting head of claim 9 , wherein at least some of the wear elements are positioned on the peripheral edge of the disc, each wear element on the peripheral edge being positioned between two adjacent cutting elements.

14 . The cutting head of claim 9 , wherein at least some of the wear elements are spaced apart from the peripheral edge and positioned in a plane oriented substantially perpendicular to the axis of rotation.

15 . The cutting head of claim 9 , wherein at least some of the wear elements are spaced apart from the peripheral edge and positioned on a peripheral surface extending around the axis of rotation.

16 . A cutting device comprising:
a disc rotating about an axis of rotation, the disc including a peripheral edge; a plurality of cutting elements secured to the disc, the cutting elements spaced apart from one another along the peripheral edge of the disc, each of the cutting elements protruding from the disc in a first direction by a first distance; and a plurality of wear elements secured to the disc, the wear elements spaced apart from one another and from the cutting elements, each of the wear elements protruding from the disc in the first direction by a second distance less than the first distance.

17 . The cutting device of claim 16 , wherein each of the cutting elements has a first hardness, wherein each of the wear elements has a second hardness greater than the first hardness.

18 . The cutting device of claim 16 , wherein the first direction is oriented substantially parallel to the axis of rotation.

19 . The cutting device of claim 16 , wherein the first direction is oriented substantially perpendicular to the axis of rotation.

20 . The cutting device of claim 16 , wherein at least some of the wear elements are positioned on the peripheral edge of the disc in an alternating configuration with the cutting elements.

Assignees

• Joy Mm Delaware Inc

Inventors

• De Sousa Joaquim Antonio Soares
• Laing Michael

Classifications

• E02F5/18

  for horizontal holes {or inclined holes} · CPC title

• E21C25/18

  Saws; Discs; Wheels · CPC title

• E21C27/02

  solely by slitting (rods, drums, for same E21C25/10; saws, discs, wheels E21C25/18; chains, chain guides, for same E21C25/28) · CPC title

• E21C31/02

  for cutting or breaking-down devices · CPC title

• E21D9/1013

  on a tool-carrier supported by a movable boom · CPC title