Bolt-in toolholder for a rotor assembly

• US 7,959,099 B1
• Filed: 06/19/2009
• Issued: 06/14/2011
• Est. Priority Date: 06/19/2009
• Status: Active Grant

• Current Assignee: Rapid Granulator, Inc., IPEG, INC. (Sewickley Capital, Inc.)
• Original Assignee: Republic Machine Inc. (Sewickley Capital, Inc.)
• Inventors: Cox, William W., Sotsky, George R.
• Primary Examiner(s): Francis; Faye
• Application Number:
  US12/488,166
• Time in Patent Office: 725 Days
• Field of Search: 241/294, 241/242, 241/243
• US Class Current: 241/294
• CPC Class Codes: B02C 18/145 with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
• CPC Class Codes: B02C 18/18 Knives; Mountings thereof

Abstract

A bolt-in toolholder assembly for a shredding device includes a rotor having a substantially cylindrical shape, a plurality of pockets formed in the rotor and spaced apart preselected distances to form preselected patterns, a bolt-in toolholder.

Claims

1. A bolt-in toolholder assembly for a shredding device, comprising:

a rotor having a substantially cylindrical shape;

a plurality of pockets formed in the rotor and spaced apart axially at preselected distances to form a preselected patterns;

a toolholder shaped to fit and be seated within said at least one of said plurality of pockets;

said toolholder comprising;

a base portion and a cutter mount;

said base having a first fastening aperture and receiving a first bolt for bolting said toolholder to said rotor;

said cutter mount having a second fastening aperture and receiving a second bolt for bolting said toolholder to said rotor, said first and second fastening apertures being circumferentially aligned and extending into said rotor generally perpendicular to an axis of said rotor;

a third bolt hole extending substantially transverse to said second fastening aperture and receiving a third bolt across said second fastening aperture and through said cutter mount; and

,

a cutting tool disposed against said cutter mount where said cutter mount extends upwardly from said base, said third bolt connecting said cutting tool to said cutter mount.

2. The bolt-in toolholder assembly of claim 1 further comprising one of a radius and a chamfer between said base and said cutter mount.

3. The bolt-in toolholder assembly of claim 2 further comprising an insert between said cutter mount and said cutting tool.

4. The bolt-in toolholder assembly of claim 3, said insert having one of a radiused and a chamfered edge substantially corresponding to said one of a radius and chamfer between said base and said cutter mount.

5. The bolt-in toolholder assembly of claim 1, said third bolt extending from said rear of said toolholder through said cutter mount.

6. The bolt-in toolholder assembly of claim 5, further comprising a machined portion in a rear surface of said toolholder for receiving a bolt head.

7. The bolt-in toolholder assembly of claim 1, said rotor having a substantially flat surface.

8. The bolt-in toolholder assembly of claim 7, said cutting tool being trapezoidal in shape.

9. The bolt-in toolholder assembly of claim 7, said cutting tool being substantially square in shape.

10. The bolt-in toolholder assembly of claim 1, said rotor having a substantially corrugated surface.

11. The bolt-in toolholder assembly of claim 10, said cutting tool being substantially square and having a corner extending into said corrugated surface.

12. The bolt-in toolholder assembly of claim 1, further comprising at least one cap for covering one of said bolt holes.

13. The bolt-in toolholder assembly of claim 1, said preselected pattern being chevron shaped.

14. The bolt-in toolholder assembly of claim 1, said preselected pattern being spiral shaped.

15. A bolt-in toolholder assembly for a shredding device, comprising:

a rotor having a substantially cylindrical shape;

a plurality of toolholders bolted to said rotor in a preselected pattern and spacing;

a plurality of pockets disposed along said rotor spaced apart axially;

said plurality of toolholders disposed in said plurality of pockets;

each of said plurality toolholders having a base and a tool mounting portion;

each of said plurality of toolholders having a first bolt extending through said base and a second bolt extending through said tool mounting portion, said first and second bolt holes receiving bolts generally radially extending into said rotor;

upper ends of said first and second bolts being aligned in a circumferential direction of said rotor;

a third bolt hole extending through said tool mounting portion and intersecting said second bolt hole;

a cutting tool positioned on said tool mounting portion, said cutting tool having an aperture aligned with said third bolt hole; and

,

a third bolt extending through said tool mounting portion and engaging said cutting tool.

16. The bolt-in toolholder assembly of claim 15, said preselected pattern being one of spiral or chevron shaped.

17. The bolt-in toolholder assembly of claim 15, further comprising an insert disposed between said cutting tool and said tool mounting portion of said toolholder.

18. The bolt-in toolholder assembly of claim 15, said first and second bolts aligned circumferentially to narrow a width of each of said plurality of toolholders.

19. The bolt-in toolholder assembly of claim 15, said width of each of said plurality of toolholders being less than a width of said cutting tool.

20. The bolt-in toolholder assembly of claim 15, said rotor being one of a substantially smooth surface and a corrugated surface.

21. The bolt-in toolholder assembly of claim 20, said cutting tool having one of a smooth surface and a corner extending into said corrugated surface.

22. The bolt-in toolholder assembly of claim 15, said third bolt extending in a direction of rotor rotation.

23. The bolt-in toolholder assembly of claim 15, further comprising caps for said first and second bolt holes.

24. A bolt-in toolholder assembly for shredding, comprising:

a rotor having a generally cylindrical shape;

a plurality of pockets disposed along a periphery of said rotor in a preselected pattern;

at least one of said pockets having a toolholder including;

a base disposed within said pocket and a cutting tool portion extending above an upper surface of said rotor;

a first bolt hole extending through said base and aligned with a fastener aperture in said rotor;

a second bolt hole extending through said cutting tool portion and circumferentially aligned with said first bolt hole;

a third bolt passing through a third bolt hole and engaging said cutting tool, said third bolt hole extending through said second bolt hole; and

,

a cutting tool fastened to said toolholder.

25. The bolt-in toolholder of claim 24, at least one of said plurality of pockets having a cap covering said pocket.