Transmission device having an oil collector

Patent metadata

Field	Value
Publication number	US-12055209-B2
Application number	US-202118039606-A
Country	US
Kind code	B2
Filing date	Nov 15, 2021
Priority date	Dec 2, 2020
Publication date	Aug 6, 2024
Grant date	Aug 6, 2024

Abstract

A transmission device includes an axis of rotation defining an axial direction, a supporting component, and an oil collector. The supporting component includes connecting holes and oil inlets. The oil collector includes a support plate, a channel connected to the support plate, oil guiding nozzles plugged axially into the oil inlets, fastening elements for holding the oil collector on the supporting component, and platforms disposed on a side of the fastening elements facing away from the supporting component. The channel runs around the axis of rotation and includes an outer contour. The fastening elements are at least partially fixedly engaged with the connecting holes. The platforms project radially from the oil collector radially beyond the outer contour. Each platform includes a planar surface and a projection. The projection projects out of the planar surface and axially beyond the platform.

First claim

The invention claimed is:

1. A transmission device having at least one oil collector, wherein the transmission device is provided with at least one supporting component which has connecting holes and oil inlets, and the oil collector has at least a support plate and a channel connected to the support plate and running around an axially aligned axis of rotation of the transmission device, wherein the oil collector is also provided with oil guiding nozzles and fastening elements and wherein in each case an oil guiding nozzle is plugged axially in one of the oil inlets, and wherein the oil collector is held on the supporting component by means of the fastening elements which at least partially engage fixedly in each case into one of the connecting holes, wherein on a side facing away from the transmission device each of the fastening elements is followed in the axial direction by a platform which is configured on the oil collector and which projects from the oil collector and which has a planar surface, wherein on each of the platforms at least one projection projects in each case out of the planar surface of the respective platform and projects axially beyond the platform and beyond the surface, wherein the platform projects radially from the oil collector radially beyond an outer contour of the channel.

2. The transmission device according to claim 1 , wherein the surface extends in an imaginary radial plane perpendicularly penetrated by the axis of rotation.

3. The transmission device according to claim 2 , wherein respective platforms comprise respective planar surfaces running in a common radial plane.

4. The transmission device according to claim 1 , wherein one of the fastening elements protrudes axially from the respective platform on a side facing the supporting component.

5. The transmission device according to claim 1 , wherein the respective projection is designed as a rib connected to the respective platform and the channel.

6. The transmission device according to claim 1 , wherein a form-fitting snap connection is implemented in or on the connecting holes between the supporting component and the fastening elements.

7. The transmission device according to claim 1 , wherein the transmission device is at least one planetary gear with the at least one supporting component formed on a planetary carrier, wherein in the planetary gear planet gears are rotatably mounted on planetary pins and the oil collector is fluidly connected to the planetary pins.

8. The transmission device according to claim 7 , wherein the oil inlets are holes in the planetary pins, wherein each of the oil guiding nozzles is plugged in one of the holes, and wherein each of the axially aligned holes leads from a respective cross-bore to at least one planet bearing for at least one planet gear.

9. A transmission device comprising:
an axis of rotation defining an axial direction;
a supporting component comprising:
connecting holes; and
oil inlets; and

an oil collector comprising:
a support plate;
a channel connected to the support plate, the channel running around the axis of rotation and comprising an outer contour;
oil guiding nozzles plugged axially into the oil inlets;
fastening elements for holding the oil collector on the supporting component, the fastening elements being at least partially fixedly engaged with the connecting holes; and
platforms disposed on a side of the fastening elements facing away from the supporting component, the platforms projecting radially from the oil collector radially beyond the outer contour, each platform comprising:
a planar surface; and
a projection projecting:
out of the planar surface; and
axially beyond the platform.

10. The transmission device of claim 9 wherein the planar surfaces extend in an imaginary radial plane perpendicularly penetrated by the axis of rotation.

11. The transmission device of claim 10 wherein the planar surfaces run in a common radial plane.

12. The transmission device of claim 9 wherein the fastening elements protrude axially from respective platforms on a side facing the supporting component.

13. The transmission device of claim 9 wherein the projections are designed as gussets connected to the respective platform and the channel.

14. The transmission device of claim 9 , wherein the fastening elements comprise snap lugs for engaging the connecting holes with a form-fitting snap connection.

15. The transmission device of claim 9 wherein the transmission device is a planetary gear comprising:
a planetary carrier comprising the supporting component;
planet pins mounted in the planetary carrier; and
planet gears rotatably mounted on the planet pins, wherein the oil collector is fluidly connected to the planet pins.

16. The transmission device of claim 15 , wherein:
the planetary gear further comprises planet bearings for rotatably mounting the planet gears on the planet pins;
the oil inlets are blind holes disposed in the planet pins;
the oil guiding nozzles are plugged into the blind holes; and
the planet pins comprise respective cross-bores extending from the blind hole to the planet bearing.

Assignees

• Schaeffler Technologies Ag

Inventors

• Schimpf Ralph
• Keck Michael
• Heymel Jan

Classifications

• F16H57/0479

  Gears or bearings on planet carriers · CPC title

• F16H57/0484

  with variable gear ratio or for reversing rotary motion · CPC title

• F16H57/0482

  Gearings with gears having orbital motion · CPC title

• F16H57/0427 Primary

  on rotary parts, e.g. using baffles for collecting lubricant by centrifugal force · CPC title