Claims
- 1. In a fragmenting rotor assembly for waste wood and other fragmentable material:
a. a drive shaft and mechanism for driving said shaft in a direction of rotation, said drive shaft incorporating axially spaced radially projecting rotors along its axis; b. a series of radially projecting side for side reversible hammer mounting hammer supports selectively situated along the axis of said shaft on said rotors and powered by said shaft, the hammer supports having radially outward heads with a rotatively leading face portion and a parallel trailing face portion adapted to selectively mount said hammers radially outward of said rotors; c. said hammers comprising fragmenting knives removably secured to the rotatively leading portions of said hammer supports; d. said knives having axially extending reducing edges; and e. said hammer supports being mounted at the sides of said rotors to partly overlie said rotors axially to define axially abutting adequate radial support for paths of knife travel.
- 2. The assembly of claim 1 wherein pairs of said hammer supports at angular intervals are mounted on opposite sides of said rotors, the hammer supports being changeably mounted on the rotors so that the trailing face of said hammer head on one hammer support may become the leading face of a hammer head mounted on the opposite side of said rotor when its leading face is worn and the hammer support is turned over and mounted on the opposite side of a rotor.
- 3. The assembly of claim 1 wherein changeable deflector members are situated axially between said hammer heads and adjacent rotors, said deflector members being in radial alignment with said hammer heads on adjacent rotors.
- 4. The assembly of claim 1 wherein said hammer supports mount on rods extending axially parallel to said shaft through said rotors at equi-spaced circumferential intervals and said hammer supports on each rotor are oppositely disposed pairs provided at 180° intervals, said pairs of hammer supports on adjacent rotors being provided in axially staggered relation.
- 5. The assembly of claim 4 wherein said pairs of hammer supports are in 45° offset relation.
- 6. The assembly of claim 4 wherein each hammer support has a trailing portion extending radially alongside one side of a rotor which mounts on a pair of said rods, and an inset shouldered head portion with a radially inner curvilinear surface nesting on said rotor periphery and extending radially outwardly therefrom partly in radial alignment with said rotor.
- 7. The assembly of claim 6 wherein said deflectors are chain link configured and each has openings removably received on a pair of said rods.
- 8. The assembly of claim 3 wherein said deflectors comprise elongate members which include mid-portions with curvilinear exterior surfaces and radially inner conforming surfaces nesting with said shaft; said deflector mid-portion having end portions with radially outer deflector surfaces and having openings receiving said rods.
- 9. In a fragmenting rotor assembly operable with anvil surface for comminuting waste wood and other fragmentable material:
a. a drive shaft and mechanism for driving said shaft in a direction of rotation, said drive shaft incorporating axially spaced discs along its axis; b. a series of side for side reversible radially projecting knife supports situated along the axis of said shaft on said discs and powered by said shaft, the knife supports having radially outward heads with a generally radial leading face portion and a substantially paralled trailing face portion; c. fragmenting knives removably secured to said leading face portions of said knife supports; d. said knives having axially extending reducing edges and said leading and trailing faces having fastening elements for mounting said knives selectively on said face portions; and e. said knife supports being mounted at the sides of each disc with the discs being so spaced that said knives on the confronting sides of adjacent discs have axially overlapping paths of travel.
- 10. The assembly of claim 9 wherein deflector members are provided in radial alignment with said knife supports circumferentially between them.
- 11. The assembly of claim 10 wherein a series of circumferentially spaced axially extending rods are provided to extend between said discs, and said knife supports and said deflector members are rigidly releasably mounted on said rods in radially alternating relation.
- 12. The rotor assembly of claim 11 wherein end plate assemblies are provided at each end of said rotor assembly and include end plates with cavities for receiving circumferentially adjustable locking plates, the end plates and locking plates both having rod receiving openings which can be aligned in a rod removing position and which receive said rods.
- 13. In a method of making a fragmenting rotor assembly operable with anvil surface for comminuting waste wood and other fragmentable material:
a. providing a drive shaft and mechanism for driving said shaft in a direction of rotation; b. providing a series of radially projecting side for side reversible hammer supports with radially outer heads situated along the axis of said shaft and powered by said shaft, the hammer heads having a leading portion and a trailing portion; c. providing fragmenting knives with axially extending reducing edges removably secured to the rotatively leading portions of said hammer heads; and d. mounting separately replaceable deflecting members independently of said hammer heads and radially between each pair of hammers which have outer ends moving in a circumferential path of lesser radial extent than the circumferential path of said knife edges.
- 14. The method of claim 13 comprising providing said deflecting members as generally oblong bodies with a central portion and with lobular outer ends, and providing said hammers and deflecting members in helically staggered relation along the axis of said shaft with each deflecting member lobular end in radial plane alignment with a hammer knife.
- 15. The method of claim 13 comprising mounting said hammer heads angularly at the sides of each disc so that the knives thereon are of such axial extent that their paths of annular travel axially overlap without interfering.
- 16. The method of claim 13 wherein the knives of hammer heads secured to the opposite sides of the same disc are secured in circumferentially displaced position and have a rotary path of axial overlap.
- 17. The method of claim 13 comprising mounting said deflecting members in substantially axial alignment with said hammer supports and reversing said hammer supports side for side when they become worn.
- 18. The method of claim 17 comprising mounting a series of circumferentially spaced axially extending pairs of rods to extend between said discs, and mounting said hammer heads and deflecting members releasably on said rods to extend between said pairs of rods in radially alternating relation.
- 19. In a fragmenting rotor assembly operable with an anvil mechanism for fragmenting waste wood and other fragmentable material:
a. a drive shaft assembly including a mechanism for driving said shaft assembly in a direction of rotation about an axis of rotation, said drive shaft assembly incorporating axially spaced radially projecting rotors along its axis; b. a series of side for side reversible radially projecting hammer supports powered by said shaft assembly situated along the axis of said shaft assembly and positioned to lie sidewisely contiguously to said rotors along said axis, the hammer supports extending radially outward of said rotors and having heads with a rotatively leading face portion and a trailing face portion; c. hammers comprising fragmenting knives removably secured to said leading portions of said hammer supports; d. said knives having axially extending reducing edges; and e. one of said contiguous hammer supports and rotors being sidewisely shouldered and providing shoulder receiving surface to be partly sidewisely received by shoulder received surface provided on the other.
- 20. The assembly of claim 19 wherein said sidewisely shouldered configuration and shoulder receiving surface are complementally curvilinear on generally a radius extending from said axis.
- 21. The assembly of claim 19 in which said hammer supports on opposite sides of said rotors are sidewisely shouldered to partly overlie said rotors from the opposite axial direction and thereby protect them.
- 22. The assembly of claim 19 in which said drive shaft assembly includes a plurality of circumferentially spaced rods extending axially parallely, and said hammer supports are non-rotatably received thereon, and deflector members circumferentially between said hammer supports and in substantial radial alignment with them mounted non-rotatably on said rods.
- 23. The rotor assembly of claim 19 wherein said knife edges have partly axially overlapping paths of travel and are axially helically positioned along said drive shaft assembly.
- 24. The rotor assembly of claim 19 wherein said rotors incorporate pairs of rotors and an axially contiguous pair of hammer supports with radially aligned axial deflectors and having side by side paths generally fill the space between said pairs of said rotors.
- 25. The rotor assembly of claim 19 in which said knife edges having partly overlapping paths of travel are sidewisely associated with opposite sides of the same rotor element.
- 26. In a fragmenting rotor assembly, operable with anvil surface for fragmenting waste wood and other fragmentable material:
a. a drive shaft and mechanism for driving said shaft in a direction of rotation about an axis, said drive shaft incorporating axially spaced radially projecting rotors along its axis; b. a series of radially projecting side for side reversible hammer legs situated along the axis of said shaft on said rotors and powered by said shaft, the hammer legs having heads with a rotatively leading face portion and a generally parallel trailing face portion radially outward of said rotors and with knife securing elements on each face portion; c. fragmenting knives having axially extending reducing edges removably secured to the leading portions of said hammer heads; d. said hammer legs being mounted at the sides of said rotors to partly overlie said rotors axially and radially conformed to said rotors; and e. deflector members situated axially between said hammer legs and adjacent rotors, said deflector members being in substantial radial alignment with said hammer legs on adjacent rotors.
Parent Case Info
[0001] This application is a continuation in part of application, Ser. No. 09/846,937 filed May 1, 2001 and claims the priority thereof and of provisional application Serial No. 60/203,241 filed May 8, 2000, and also the priority of provisional application Serial No. 60/246,862 filed Nov. 8, 2000. The application also claims the priority of provisional application Serial No. 60/446,143 filed Feb. 10, 2003. This invention relates to rotor assemblies for heavy machinery such as hammer mills and wood hogs for fragmenting waste wood and other products, including demolition debris, stumps, pallets, large timbers, and the like into particulate or chips which are useful, for example, as mulch, groundcover, and fuel.
Provisional Applications (3)
|
Number |
Date |
Country |
|
60446143 |
Feb 2003 |
US |
|
60246862 |
Nov 2000 |
US |
|
60203241 |
May 2000 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09846937 |
May 2001 |
US |
Child |
10774548 |
Feb 2004 |
US |