Scrap fragmentizer

• US 5,431,350 A
• Filed: 02/01/1994
• Issued: 07/11/1995
• Est. Priority Date: 05/18/1993
• Status: Expired due to Fees

• Current Assignee: Brian Purser
• Original Assignee: Brian Purser
• Inventors: Purser, Brian
• Primary Examiner(s): Husar, John
• Application Number:
  US08/189,281
• Time in Patent Office: 525 Days
• Field of Search: 241/101.7, 241/222, 241/242, 241/260.1, 241/273.3, 241/243
• US Class Current: 241/101.72
• CPC Class Codes: B02C 18/145 with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
• CPC Class Codes: B02C 18/24 Drives
• CPC Class Codes: B02C 18/28 with spiked cylinders
• CPC Class Codes: B02C 19/0062 specially adapted for shredding scrap metal, e.g. automobile bodies
• CPC Class Codes: B02C 2021/023 for disintegrating material on the surface of the ground
• CPC Class Codes: B02C 21/02 Transportable disintegrating plant
• CPC Class Codes: E02F 3/407 with ejecting or other unloading device
• CPC Class Codes: E02F 3/965 of metal-cutting or concrete-crushing implements shearing devices B23D17/00; wrecking of buildings, e.g. tools therefor, E04G23/08
• CPC Class Codes: E02F 7/06 Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators for back-filling E02F5/226 takes precedence; separating equipment in general B03; delivery chutes in general B65G

Abstract

A scrap fragmentizer for reducing light scrap metal structures into small pieces of scrap metal. The apparatus includes an apparatus housing having a scrap-receiving opening for receiving the metal structures to be fragmentized, and a discharge opening for discharging fragmentized pieces of scrap metal. The apparatus is attached to a vehicle having a source of hydraulic power. A feed roller and fragmentizing rotor are powered by the source of hydraulic power for feeding metal structures in the scrap-receiving opening into the apparatus housing and for fragmentizing the metal structures into small pieces of scrap metal. The fragmentized metal structures are discharged through a discharge opening in small pieces ready for further processing.

Claims

1. A scrap fragmentizer for reducing light scrap metal structures into small pieces of scrap metal, comprising:

(a) an apparatus housing having a scrap-receiving opening for receiving the metal structures to be fragmentized, and a discharge opening for discharging fragmentized pieces of scrap metal;

(b) a source of hydraulic power for supplying hydraulic power to said fragmentizer;

(c) scrap feeding means for feeding metal structures in the scrap-receiving opening into the apparatus housing;

(d) scrap fragmentizing means powered by said source of hydraulic power and positioned in said apparatus housing between said scrap feeding means and said discharge opening for fragmentizing the metal structures into small pieces of scrap metal as they are fed to the scrap fragmentizing means from the scrap feeding means, and discharging the fragmentized metal structures through the discharge opening, said scrap fragmentizing means comprising a rotor having a plurality of outwardly-extending triangular teeth positioned in staggered relation around the periphery of the rotor, each of said teeth being aligned with the direction of rotation of said rotor;

(e) an anvil positioned between the scrap feeding means and the rotor, said anvil having a serrated edge defined by a plurality of laterally-extending triangular-shaped serrations positioned in corresponding alignment with respective ones of said triangular teeth and having a triangular shape corresponding to the triangular shape of said teeth;

the plane of said teeth and the plane of said anvil intersecting to cause passage of said teeth past respective ones of said serrations in closely spaced-apart metal fragmentizing relation to each other; and

(f) wherein said teeth are spaced on said rotor so that only one tooth is in cutting engagement with said anvil at any one time.

2. A scrap fragmentizer according to claim 1, wherein said scrap feeding means comprises a feed roller positioned in the scrap-receiving opening and rotating in a direction to push the scrap metal structures under the feed roller and into the apparatus housing.

3. A scrap fragmentizer according to claim 2, wherein said feed roller includes a plurality of metal creasing and cutting members positioned on a peripheral surface of the feed roller.

4. A scrap fragmentizer according to claim 3, wherein said each of said metal creasing and cutting members comprises a blade positioned on the peripheral surface of the feed roller in spaced-apart relation to each other.

5. A scrap fragmentizer according to claim 2, wherein said apparatus housing includes a plurality of wear ribs in the scrap-receiving opening.

6. A scrap fragmentizer according to claim 2, and including adjustment means for adjusting the size of the scrap receiving opening relative to the feed roller.

7. A scrap fragmentizer according to claim 1, wherein said fragmentizing teeth comprise hardened steel.

8. A scrap fragmentizer according to claim 7, wherein said teeth have a relatively large base proximal to said fragmentizing roller by which the teeth of attached to the peripheral surface of the fragmentizing roller and a distal cutting blade, the longitudinal axis of said blade extending in the direction of the axis of rotation of the fragmentizing roller.

9. A scrap fragmentizer according to claim 1, wherein the scrap fragmentizer includes at least one hydraulic motor hydraulically connected to said source of hydraulic power.

10. A scrap fragmentizer according to claim 1, and including a rotatably-mounted pinion gear attached to said source of hydraulic power for outputting power from said source of hydraulic power, and a torque gear mounted in gear driven relation to said pinion gear for being rotatably driven by said pinion gear, said torque gear mounted in driving relation to said fragmentizing roller for rotating said fragmentizing roller.

11. A scrap fragmentizer according to claim 1, wherein the diameter of said torque gear to the diameter of the pinion gear is 3 to 1, thereby resulting in a reduced torque gear rpm and increased torque relative to said pinion gear.

12. A scrap fragmentizer for reducing light scrap metal structures into small pieces of scrap metal, comprising:

(a) an apparatus housing having a top wall, first and second opposing and spaced-apart sidewalls, and a bottom wall opposing and spaced-apart from said top wall, said top wall, said bottom wall and said sidewalls defining a scrap-receiving opening for receiving the metal structures to be fragmentized and also defining a discharge opening through which fragmentized pieces of scrap metal are discharged;

(b) a source of hydraulic power for supplying hydraulic power to said apparatus housing;

(c) a feed roller powered by said source of hydraulic power for feeding metal structures in the scrap-receiving opening into the apparatus housing;

(d) a scrap fragmentizing roller powered by said source of hydraulic power and positioned in said apparatus housing between said scrap feeding roller and said discharge opening for fragmentizing the metal structures into small pieces of scrap metal as they are fed to the scrap fragmentizing roller from the scrap feeding roller, and discharging the fragmentized metal structures through the discharge opening said scrap fragmentizing means comprising a rotor having a plurality of outwardly-extending triangular teeth positioned in staggered relation around the periphery of the rotor, each of said teeth being aligned with the direction of rotation of said rotor;

(e) an anvil positioned between the scrap feeding means and the rotor, said anvil having a serrated edge defined by a plurality of laterally-extending triangular-shaped serrations positioned in corresponding alignment with respective ones of said triangular teeth and having a triangular shape corresponding to the triangular shape of said teeth;

the plane of said teeth and the plane of said anvil intersecting to cause passage of said teeth past respective ones of said serrations in closely spaced-apart metal fragmentizing relation to each other; and

(f) wherein said teeth are spaced on said rotor so that only one tooth is in cutting engagement with said anvil at any one time.