Anti-wind wiper with adjustable extension
AssigneeCNH America LLC
InventorsDale Tanis, Craig Murray, Mark Svitak
Life of this patent
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Abstract
An anti-wind wiper including an extension adjustably mountable in a desired spaced relation and angular orientation relative to a leading edge of a flight of a front rotor inlet section of a combine, for interaction with the flight during rotation of the rotor, for directing and guiding crop material, particularly long strand-like elements of crop material, away from a shaft and bearing supporting the inlet section.
Claims31
An adjustable anti-wind wiper for an agricultural combine, comprising:
- an elongate wiper extension having a first longitudinal end portion adjustably mountable on structure supporting an inlet end of a rotor of a combine for rotation about a rotational axis, such that the wiper extension will extend generally radially outwardly in relation to the rotational axis and in a rotational direction of the rotor to an opposite second end portion of the wiper extension, the extension being in a predetermined axially spaced relation to a radially outwardly extending leading edge of an inlet flight of the rotor.
An adjustable anti-wind wiper for an inlet end of a rotor of an agricultural combine, comprising:
- an elongate extension member having a longitudinal edge extending between a first longitudinal end portion thereof and a second longitudinal end portion thereof, the first longitudinal end portion being adjustably mountable on a shroud extending at least partially around a bearing supporting an inlet end of a rotor for rotation about an axis such that the extension member extends generally radially outwardly from the shroud in a direction of rotation of the rotor, and such that the edge of the extension member can be adjustably moved at least axially relative to the shroud so as to be positionable and fixable within a range of positions in axially spaced relation to a leading edge of a flight of the rotor.
Apparatus for supporting an inlet end of a rotor of an agricultural combine, comprising:
- structure supporting an inlet end of a rotor for rotation in a predetermined rotational direction about a rotational axis, the inlet end having at least one helical flight having a leading edge extending radially outwardly from the rotational axis;
- a shroud mounted in connection with the structure, the shroud including a radially outwardly facing wiper surface extending circumferentially at least partially around the rotational axis, the wiper surface extending progressively radially outwardly relative to the axis in the rotational direction;
- and
- an elongate extension member having opposite first and second longitudinal end portions and a convex curved wiper surface extending therebetween, the first longitudinal end portion being adjustably mounted on the shroud such that the convex curved surface is oriented to face radially outwardly and extends generally radially outwardly from the wiper surface, and such that the extension member can be adjustably positioned in a predetermined axially spaced position in relation to the leading edge of the at least one flight and fixed in said position.
Apparatus for supporting an agricultural combine front inlet section for rotation in a predetermined rotational direction relative thereto about an axis extending therethrough while preventing winding of plant material therearound, the rotor front inlet section including at least one helical auger flight extending therearound including a front most leading edge extending radially outwardly from a front center portion thereof through which the axis extends, the apparatus comprising:
- a shroud extending circumferentially at least partially around the axis in radially outwardly spaced relation thereto, the shroud including a radially outwardly facing curved anti-wind wiper extending substantially tangentially and radially outwardly therefrom in the predetermined radial direction and in position such that when the front rotor inlet section is rotated relative thereto in the predetermined rotational direction, the front leading edge of the auger flight will rotate in closely spaced axially opposing relation to the anti-wind wiper so as to urge plant material coming into contact therewith radially outwardly away from the front center portion;
- and
- an elongate anti-wind wiper extension adjustably mountable on the anti-wind wiper so as to extend longitudinally radially outwardly in the predetermined rotational direction such that when the front rotor inlet section is rotated relative thereto in the predetermined rotational direction, the front leading edge of the auger flight will rotate in closely spaced axially opposing relation to the anti-wiper extension so as to urge plant material radially outwardly from the anti-wind wiper, the adjustable mountability of the anti-wind wiper extension allowing positioning and fixedly mounting the extension on the wiper in a variety of angular orientations and spaced relations relative to the leading edge of the auger flight.
A method of adjusting an anti-wind wiper assembly for preventing winding of plant material around structure supporting a front inlet section of a rotor of an agricultural combine, comprising the steps of:
- orienting the extension on the structure so as to extend in a direction of rotation of the rotor in a predetermined axially spaced position in relation to a radially outwardly extending leading edge of at least one helical flight of the inlet end;
- and
- fixedly mounting the extension on the structure in the position.
Dependencies are inferred from the claim text.