Apparatus for roadway surface reclaiming drum
First Claim
1. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising a plurality of flighting sections and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
- to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion, the flighting sections having a radially outermost portion defining a plurality of openings adapted to receive at least one cutter bit wherein at least one of the openings is tapped, at least one cutter bit insert defining an interior bore for receiving at least one cutter bit and having external threads capable of threaded engagement within one of the at least one tapped opening, and a threaded jamming fastener for threaded engagement within one of the at least one tapped opening and capable of bearing against one of the at least one cutter bit insert thereby securing one of the at least one cutter bit insert to at least one of the flighting sections against relative rotational movement which would cause disengagement therefrom.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for a roadway surface reclaiming drum is disclosed that includes a plurality of flighting sections generally helically attached to a cylindrical surface of the drum at an included angle of about 40° to about 60°. During rotation of the drum about its cylindrical axis, a plurality of cutter bits mounted to openings defined in the flighting sections loosen roadway surface and the flighting sections transport loosened roadway material axially along the drum and between the flighting sections towards a lateral center portion of the drum. A plurality of teeth received in recesses defined in walls of the flighting sections facilitate transport of loosened roadway material between adjacent flighting sections towards the lateral center portion of the drum and reduce wear of the flighting sections. Cutter bit inserts for receiving the cutter bits are mounted to base portions attached to the outermost portions of the flighting sections, and define interior bores. Jamming fasteners are provided to secure the cutter bit inserts to the flighting sections against relative rotational movement.
73 Citations
21 Claims
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1. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising a plurality of flighting sections and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
- to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion, the flighting sections having a radially outermost portion defining a plurality of openings adapted to receive at least one cutter bit wherein at least one of the openings is tapped, at least one cutter bit insert defining an interior bore for receiving at least one cutter bit and having external threads capable of threaded engagement within one of the at least one tapped opening, and a threaded jamming fastener for threaded engagement within one of the at least one tapped opening and capable of bearing against one of the at least one cutter bit insert thereby securing one of the at least one cutter bit insert to at least one of the flighting sections against relative rotational movement which would cause disengagement therefrom. - View Dependent Claims (2, 3)
- to about 60°
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4. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising a plurality of flighting sections and means for mounting the flighting section to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
- to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion, the flighting sections having a radially outermost portion defining a plurality of openings adapted to receive at least one cutter bit, at least one of the flighting sections including a wall disposed generally normal to and projecting from the cylindrical surface portion and defining a plurality of recesses, and a plurality of teeth received in the recesses and capable of reducing frictional contact between portions of reclaimed roadway surface and the flighting sections during rotation of the drum in the cutting direction. - View Dependent Claims (5, 6)
- to about 60°
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7. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a plurality of flighting sections, each having a radially outermost portion; a plurality of base portions, each mounted to the outermost portion of one of the flighting sections and to at least one other of the base portions and each defining at least one opening adapted to receive a cutter bit insert; and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion. - View Dependent Claims (8)
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9. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a plurality of flighting sections each having a radially outermost portion, at least one of the flighting sections including a wall disposed generally normal to and projecting from the cylindrical surface portion and defining a plurality of recesses; a plurality of teeth received in the recesses and capable of reducing frictional contact between portions of reclaimed roadway surface and the flighting sections during rotation of the drum in the cutting direction; a plurality of base portions, each mounted to the outermost portion of one of the flighting sections and each defining at least one opening adapted to receive a cutter bit insert; and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion. - View Dependent Claims (10, 11)
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12. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a plurality of flighting sections, each having a radially outermost portion and at least one of the flighting sections including a wall disposed generally normal to and projecting from the cylindrical surface portion and defining a plurality of recesses; a plurality of teeth received in the recesses and capable of reducing frictional contact between portions of reclaimed roadway surface and the flighting sections during rotation of the drum in the cutting direction; a plurality of base portions, each mounted to the outermost portion of one of the flighting sections and to at least one other base portion, and defining at least one opening adapted to receive a cutter bit insert; and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°
to about 60°
with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion. - View Dependent Claims (13, 14, 15)
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16. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a flighting section mounted to the cylindrical surface portion and defining a tapped opening; a cutter bit insert defining an interior bore for receiving at least one cutter bit and having external threads capable of threaded engagement within the tapped opening; and a threaded jamming fastener for threaded engagement within the tapped opening and capable of bearing against the cutter bit insert thereby securing the cutter bit insert to the flighting section against relative rotational movement which would cause disengagement therefrom. - View Dependent Claims (17)
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18. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a flighting section mounted to the cylindrical surface portion; a base portion mounted to the flighting section and defining a tapped opening; a cutter bit insert defining an interior bore for receiving at least one cutter bit and having external threads capable of threaded engagement within the tapped opening; and a threaded jamming fastener for threaded engagement within the tapped opening and capable of bearing against the cutter bit insert thereby securing the cutter bit insert to the base portion against relative rotational movement which would cause disengagement therefrom. - View Dependent Claims (19)
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20. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising:
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a flighting section mounted to the cylindrical surface portion; a base portion mounted to the flighting section and defining a tapped opening and an access aperture; and a cutter bit insert defining an interior aperture for receiving at least one cutter bit and having external threads capable of threaded engagement with the tapped opening so that the interior aperture is disposed in fluid connection with the access aperture, whereby pressurized fluid applied to the access aperture may bear against at least one cutter bit received in the interior aperture facilitating removal of at least one cutter bit from the interior aperture. - View Dependent Claims (21)
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Specification