Cutting tooth system

• US 10,124,509 B2
• Filed: 11/14/2014
• Issued: 11/13/2018
• Est. Priority Date: 11/15/2013
• Status: Active Grant

• Current Assignee: Vermeer Manufacturing Company
• Original Assignee: Vermeer Manufacturing Company
• Inventors: Runquist, Randy, Hoelting, Keith Allen
• Primary Examiner(s): Bagnell, David J
• Assistant Examiner(s): Goodwin, Michael A
• Application Number:
  US15/036,374
• Publication Number:
  US 20160263774A1
• Time in Patent Office: 1,460 Days
• CPC Class Codes: B28D 1/045 Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut
• CPC Class Codes: B28D 1/122 with exchangeable cutter bits or cutter segments
• CPC Class Codes: B28D 1/188 with exchangeable cutter bits or cutter segments
• CPC Class Codes: E01C 23/09 for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
• CPC Class Codes: E01C 23/0933 rotary, e.g. circular-saw joint cutters
• CPC Class Codes: E02F 3/188 with the axis being horizontal and transverse to the direction of travel
• CPC Class Codes: E02F 3/241 digging wheels
• CPC Class Codes: E02F 5/08 with digging wheels turning round an axis E02F5/109 takes precedence; with digging wheels per se E02F3/18
• CPC Class Codes: E02F 5/10 with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables laying pipes per se F16L1/00, making pipes in situ F16L1/038; laying electric cables per se H02G1/06; drainage device- laying apparatus E02B11/02
• CPC Class Codes: E02F 5/101 forming during digging, e.g. underground canalisations or conduits, by bending or twisting a strip of pliable material; by extrusion
• CPC Class Codes: E02F 5/12 with equipment for back-filling trenches or ditches
• CPC Class Codes: E02F 9/2816 Mountings therefor
• CPC Class Codes: E02F 9/2866 for rotating digging elements for milling machines B28D1/186; for mining machines E21C35/18
• CPC Class Codes: E21C 35/19 Means for fixing picks or holders
• CPC Class Codes: E21C 35/191 for fixing holders
• CPC Class Codes: E21C 35/197 using sleeves, rings or the like, as main fixing elements
• CPC Class Codes: F16L 1/032 the pipes being continuous F16L1/038 takes precedence

Abstract

A cutting tooth system includes a plurality of substrates, each having a base for attaching to the cutting wheel, and an outer surface opposite the base. A plurality of tooth pockets are integrally formed in the substrate, each tooth pocket having a tooth receiving aperture extending through the outer surface and into the substrate. A cutting tooth has a pocket engagement portion configured for being received in a mounting pocket. The pocket engagement portion defines a pocket engagement length and a shank defining a shank diameter. A cutter portion extends from the pocket engagement portion.

Claims

1. A cutting tooth mounting system, comprising:

a substrate having a base configured for attaching to a cutting wheel, and a tooth mounting surface opposite the base, the tooth mounting surface defining a curved tooth mounting surface boundary; and

a plurality of tooth pockets monolithically formed in the substrate having tooth receiving openings extending through the tooth mounting surface;

each tooth pocket having an axis defining an attack angle, wherein the axes of the plurality of tooth pockets define at least three different attack angles, wherein each tooth pocket has a portion that extends below the tooth mounting surface boundary into the substrate in a direction toward the base.

2. The cutting tooth mounting system of claim 1, further comprising a plurality of cutting teeth, each cutting tooth received by a respective tooth pocket, wherein each tooth defines a base diameter, and wherein the tooth mounting surface defines a width that is less than two times the base diameter.

3. The cutting tooth mounting system of claim 1, wherein the tooth pockets are arranged in a single row in the substrate and angled such that teeth received in the tooth pockets have tips positioned on opposite sides of a central plane that longitudinally bisects the substrate.

4. The cutting tooth mounting system of claim 1, wherein adjacent tooth pockets define different attack angles.

5. The cutting tooth mounting system of claim 1, wherein the substrate has an arcuate shape and a curved tooth mounting surface opposite the base, wherein the tooth pockets each include a tooth support boss having a planar tooth support surface that is coincident with the tooth mounting surface.

6. The cutting tooth mounting system of claim 5, wherein each tooth support boss defines a boss center and a boss radius at the tooth support surface, the tooth pockets in the substrate being spaced such that a respective boss center of a first tooth pocket is separated, in a circumferential direction, from a tooth support boss of an adjacent second tooth pocket by no more than the boss radius of the first tooth pocket.

7. The cutting tooth mounting system of claim 1, wherein the tooth mounting surface defines a width, and wherein the tooth mounting surface is flat across the width.

8. A cutting wheel system, comprising:

a cutting wheel defining an outer perimeter;

a plurality of elongated arcuate substrates, each having a base attached to the outer perimeter of the cutting wheel and a curved outer surface opposite the base, the curved outer surface defining a curved tooth mounting surface boundary; and

a plurality of tooth pockets monolithically formed in the plurality of elongated arcuate substrates, each tooth pocket having a tooth receiving aperture extending through the outer surface and into the substrate, wherein each tooth pocket has a portion that extends below the tooth mounting surface boundary into the substrate in a direction toward the base.

9. The cutting wheel system of claim 8, wherein the substrates are mounted to the cutting wheel such that each mounted substrate abuts an adjacent mounted substrate.

10. The cutting wheel system of claim 8, wherein the tooth pockets each include a tooth support boss having a planar tooth support surface that is coincident with the outer surface.

11. The cutting wheel system of claim 10, wherein each tooth support boss defines a boss center and a boss radius at the tooth support surface, the tooth pockets in the substrate being spaced such that a respective boss center of a first tooth pocket is separated, in a circumferential direction, from a tooth support boss of an adjacent second tooth pocket by no more than the boss radius of the first tooth pocket.

12. The cutting wheel system of claim 8, wherein:

the outer perimeter defines a circumferential direction;

each of the tooth pockets has a pocket center; and

each pocket center is separated from the pocket center of adjacent tooth pockets in the circumferential direction by no more than a pocket separation distance around the outer perimeter.

13. The cutting wheel system of claim 8, wherein:

the cutting wheel defines a central plane perpendicular to an axis of rotation of the cutting wheel;

each of the tooth mounting substrates includes a mounting shoulder having a second surface extending from the base parallel to the central plane; and

the second surface contacts and is fastened to a side surface of the cutting wheel.

14. A cutting tooth mounting system, comprising:

a main body having;

a base surface configured for attaching to a cutting wheel;

an arcuate tooth mounting surface opposite the base surface, the tooth mounting surface defining a curved tooth mounting surface boundary; and

a plurality of tooth pockets monolithically formed in the main body having tooth receiving openings extending through the tooth mounting surface;

wherein each tooth pocket includes a first portion that extends above the tooth mounting surface boundary and a second portion that extends below the tooth mounting surface boundary into the main body in a direction toward the base, each tooth pocket having an axis defining an attack angle, wherein the axes of the plurality of tooth pockets define at least three different attack angles.

15. The cutting tooth mounting system of claim 14, further comprising a plurality of teeth mountable within the tooth pockets, wherein, when mounted within the tooth pockets, a first portion of the each tooth extends above the tooth mounting surface boundary and a second portion of each tooth extends below the tooth mounting surface boundary.