Precision-balanced cutter head and method
First Claim
1. A rotatable cutter head;
- comprising;
(a) an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith;
(b) an outer hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate thereon for rotation therewith, the bore of the outer hub adapted for receiving the inner hub concentrically therein for rotation therewith;
(c) an outer pressure-expansible sleeve for being concentrically-mounted within the bore of said outer hub and pressurized for locking the outer hub onto the inner hub; and
(d) an inner pressure-expansible sleeve for being concentrically-positioned in the bore of the inner hub and pressurized for locking the inner hub onto a rotatable spindle, whereby the inner hub and outer hub and the respective cutter plates mounted thereon are locked in fixed, concentric relation relative to each other and to the rotatable spindle.
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Accused Products
Abstract
A rotatable cutter head comprising an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith, an outer hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate thereon for rotation therewith. The bore of the outer hub is adapted for receiving the inner hub concentrically therein for rotation therewith. An outer pressure-expansible sleeve is provided for being concentrically-mounted within the bore of said outer hub and pressurized for locking the outer hub onto the inner hub. An inner pressure-expansible sleeve is concentrically-positioned in the bore of the inner hub and pressurized for locking the inner hub onto a rotatable spindle, whereby the inner hub and outer hub and the respective cutter plates mounted thereon are locked in fixed, concentric relation relative to each other and to the rotatable spindle.
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Citations
16 Claims
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1. A rotatable cutter head;
- comprising;
(a) an inner hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate concentrically thereon for rotation therewith; (b) an outer hub having a centrally-disposed bore therethrough and an outer surface for carrying at least one cutter plate thereon for rotation therewith, the bore of the outer hub adapted for receiving the inner hub concentrically therein for rotation therewith; (c) an outer pressure-expansible sleeve for being concentrically-mounted within the bore of said outer hub and pressurized for locking the outer hub onto the inner hub; and (d) an inner pressure-expansible sleeve for being concentrically-positioned in the bore of the inner hub and pressurized for locking the inner hub onto a rotatable spindle, whereby the inner hub and outer hub and the respective cutter plates mounted thereon are locked in fixed, concentric relation relative to each other and to the rotatable spindle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- comprising;
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16. A method of concentrically locking a plurality of rotatable cutting elements in precise fixed relation to each other and to a spindle on which the cutting elements are mountable for rotation, comprising the steps of:
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(a) positioning the rotatable cutting elements on support members in a predetermined relationship to each other; (b) applying a first pressure-expansible sleeve to at least one of the support members on which a respective at least one of said cutting elements are mounted; (c) locking the rotatable cutting elements to each other in the predetermined relationship by pressurizing the first pressure-expansible sleeve to thereby define a cutter head wherein the cutting elements are immobilized relative to each other; (d) mounting the cutter head onto a second pressure-expansible sleeve having a bore therein; (e) positioning a rotatable spindle in the bore of the second pressure-expansible sleeve; and (f) locking the second pressure-expansible sleeve onto the spindle by pressurizing the second pressure-expansible sleeve to thereby immobilize the second pressure-expansible sleeve and the spindle relative to each other.
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Specification