Shaft-hub connection for a transmission
AssigneeFlender GmbH
InventorsTino Tüshaus, Norbert Haake
Life of this patent
Estimating the term…
Abstract
A shaft-hub connection for a planetary transmission includes a shaft, a hub element surrounding an outer circumference of the shaft and drivingly connected to the shaft for rotation about a main rotation axis via splines, a housing element fixed with respect to the main rotation axis, and an oil channel extending in the housing element and the hub element and designed to open out in a region of the splines to supply at least the splines with lubricating oil for oiling. The oil channel forms between the housing element and the hub element a lubrication gap for transferring lubricating oil and extends radially from inside outwards in a region of the lubrication gap.
Claims15
A shaft-hub connection for a planetary transmission, the shaft-hub connection comprising:
- a shaft;
- a hub element surrounding an outer circumference of the shaft and drivingly connected to the shaft for rotation about a main rotation axis via splines;
- a housing element fixed with respect to the main rotation axis;
- an oil channel extending in the housing element and the hub element and designed to open out in a region of the splines to supply at least the splines with lubricating oil for oiling, said oil channel forming between the housing element and the hub element a lubrication gap for transferring lubricating oil and extending radially from inside outwards in a region of the lubrication gap;
- and
- bearings radially supporting an outer circumference of the hub element which are radially aligned with the lubrication gap.
A transmission, comprising:
- a planetary stage;
- a hub element drivingly connected to the planetary stage;
- and
- a drive connection provided between a plurality of planetary stages or between the planetary stage and the hub element and designed as a shaft-hub connection, the shaft-hub connection comprising a shaft having an outer circumference surrounded by the hub element and drivingly connected to the shaft for rotation about a main rotation axis via splines, a housing element fixed with respect to the main rotation axis, and an oil channel extending in the housing element and the hub element and designed to open out in a region of the splines to supply at least the splines with lubricating oil for oiling, said oil channel forming between the housing element and the hub element a lubrication gap for transferring lubricating oil and extending radially from inside outwards in a region of the lubrication gap, and bearings radially supporting an outer circumference of the hub element which are radially aligned with the lubrication gap.
A drive train, comprising:
- a transmission comprising a planetary stage, a hub element drivingly connected to the planetary stage, and a drive connection provided between a plurality of planetary stages and/or between the planetary stage and the hub element and designed as a shaft-hub connection, the shaft-hub connection comprising a shaft having an outer circumference surrounded by the hub element and drivingly connected to the shaft for rotation about a main rotation axis via splines, a housing element fixed with respect to the main rotation axis, and an oil channel extending in the housing element and the hub element and designed to open out in a region of the splines to supply at least the splines with lubricating oil for oiling, said oil channel forming between the housing element and the hub element a lubrication gap for transferring lubricating oil and extending radially from inside outwards in a region of the lubrication gap;
- bearings radially supporting an outer circumference of the hub element which are radially aligned with the lubrication gap;
- a main shaft which is torque-transmittingly connected to the transmission;
- and
- a machine which is torque-transmittingly connected to the transmission.
Dependencies are inferred from the claim text.