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US 2023/0313864 A1Published application
Lightweight geardrive systems
OwnerWilliam Cullen Chapman, JR.inventor
Life of this patent
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Abstract
A gear assembly including a rim gear with an inner circumference having one or more beveled surfaces. The rim gear is mounted on a one or more corresponding tapered rollers on a gear mounting assembly. The tapered rollers can engage with the beveled surfaces at an angle relative to an axis of rotation of the tapered rollers and the rim gear to prevent slippage between the inner circumference (beveled surfaces) and the tapered rollers.
Claims23
A gear assembly comprising:
- a rim gear, comprising:
- a rim defining an outer circumference and including an inner side;
- a plurality of gear teeth extending radially outwardly from the outer circumference of the rim;
- and
- a first beveled surface of the inner side;
- and
- a gear mounting assembly, comprising:
- a first tapered roller rotatable about a first roller axis;
- wherein the rim gear is rotatably mounted on the gear mounting assembly with the first beveled surface engaged with the first tapered roller.
6 more elements
A gear assembly, comprising:
- a first rim gear including an outer circumference with a plurality of gear teeth extending radially outwardly and an inner circumference;
- a first roller bearing at a first circumferential position along the inner circumference;
- a second roller bearing at a second circumferential position along the inner circumference, the first roller bearing spaced from the second roller bearing;
- wherein the first rim gear is mounted on the first and second roller bearings for rotation about a first rotation axis;
- wherein the first and second roller bearings include at least one tapered rollers;
- a second rim gear including a second outer circumference with a plurality of gear teeth extending radially outwardly and a second inner circumference;
- a third roller bearing at a first circumferential position along the second inner circumference;
- a fourth roller bearing at a second circumferential position along the second inner circumference, the third roller bearing spaced from the fourth roller bearing;
- wherein the second rim gear is mounted on the third and fourth roller bearings for rotation about a second rotation axis;
- wherein the first rim gear is configured to transfer a torque to the second rim gear;
- and
- wherein the first roller bearing at the first circumferential position of the first rim gear and the third roller bearing at the first circumferential position of the second rim gear are positioned to resolve thrust vectors between the first and second rim gears.
9 more elements
Dependencies are inferred from the claim text.