Belt drive system
AssigneeAGCO Corporation
InventorsNicholas H. Williams, Andrew Mark Veer
Life of this patent
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Abstract
A belt drive system for a vehicle, such as a combine harvester. The belt drive system uses a driven pulley which is selectively engageable with a driven shaft to supply rotation to the shaft. The pulley is mounted on a fixed, i.e. non-rotating, housing using suitable bearings, such that the bearings of the pulley continue to rotate and are dynamically loaded for all rotation conditions of the driven pulley, i.e. whether the pulley is engaged with the shaft or not. This prevents damage to the bearings due to false brinelling.
Claims12
A belt drive system for a vehicle, the belt drive system comprising:
- a fixed housing;
- a first pulley, said first pulley rotatably provided on said fixed housing using first bearings;
- a second pulley, said second pulley rotatably provided on said first pulley using second bearings;
- a shaft rotatable about an axis;
- and
- a shift collar provided on said shaft, wherein said shift collar is selectively engageable with said first pulley or said second pulley to engage said first pulley or said second pulley with the shaft such that said first pulley or said second pulley is drivably engaged with said shaft;
- wherein said first pulley comprises a mounting flange arranged about and substantially concentric with the shaft, wherein said second pulley is rotatably provided on said mounting flange.
A belt drive system for a vehicle, the belt drive system comprising:
- a fixed housing;
- a first pulley, said first pulley rotatably provided on said fixed housing using first bearings;
- a second pulley, said second pulley rotatably provided on said first pulley using second bearings;
- a shaft rotatable about an axis;
- and
- a shift collar provided on said shaft, wherein said shift collar is selectively moveable between:
- a first engaged position, wherein the shift collar is engaged with the first pulley;
- a second engaged position, wherein the shift collar is engaged with the second pulley;
- and
- a neutral position, wherein the shift collar is disengaged from both the first and second pulleys;
- wherein the shift collar is provided with external splines, wherein the said external splines are arranged to couple with first mating splines provided on the first pulley when the shift collar is in said first engaged position, and said external splines are arranged to couple with second mating splines provided on the second pulley when the shift collar is in said second engaged position.
Dependencies are inferred from the claim text.