Gearing unit for a drive assembly and method for mounting the gearing unit

Patent metadata

Field	Value
Publication number	US-12460712-B2
Application number	US-202418593111-A
Country	US
Kind code	B2
Filing date	Mar 1, 2024
Priority date	Dec 11, 2019
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

A gearing unit for a drive assembly includes a gearing device for converting a drive torque of the drive assembly. The gearing device includes an input shaft, and the input shaft defines a main axis. A gearing housing defines an accommodation space and houses the gearing device in the accommodation space. A venting device is mounted on the gearing housing and extends through the gearing housing to the accommodation space. The venting device is arranged coaxially with the main axis and on an axial end face of the input shaft.

First claim

What is claimed is:

1 . A gearing unit for a drive assembly, comprising:
a gearing housing defining an accommodation space; a gearing device housed in the gearing housing and configured to convert a drive torque of the drive assembly, the gearing device including a mounting opening and an input shaft mounted through the mounting opening and defining a main axis; a closure cover received in and closing the mounting opening, the closure cover being sealed to the gearing device via a sealing device arranged radially between the closure cover and the gearing device in the mounting opening; a venting device integrated with the closure cover and extending through the closure cover to the accommodation space; wherein the venting device is arranged coaxially to the main axis and on an axial end side of the input shaft.

2 . The gearing unit according to claim 1 , wherein the closure cover is pressed into the mounting opening.

3 . The gearing unit according to claim 1 , wherein the venting device includes a venting channel, wherein the venting channel includes an axial channel section extending coaxially to the main axis in the accommodation space and through the closure cover.

4 . The gearing unit according to claim 3 , wherein the venting channel includes an inlet opening and an outlet opening, wherein the venting channel includes an ascending portion between the inlet opening and the outlet opening.

5 . The gearing unit according to claim 3 , wherein the venting channel includes a radial channel section extending radially from the main axis and adjoining the axial channel section outside of the accommodation space.

6 . The gearing unit according to claim 3 , wherein the input shaft includes a recess on the axial end side, wherein the recess extends coaxially with the main axis, and wherein the axial channel section includes an axial end arranged within the recess and spaced apart from the input shaft.

7 . The gearing unit according to claim 1 , wherein the closure cover is configured to engage with the mounting opening only when the closure cover is inserted into the mounting opening in a specified orientation.

8 . The gearing unit according to claim 1 , wherein the gearing device further includes an intermediate shaft in meshing engagement with the input shaft, and an output shaft in meshing engagement with the intermediate shaft.

9 . The gearing unit according to claim 1 , wherein the sealing device is arranged in a groove on a peripheral side of the closure cover.

Assignees

• Schaeffler Technologies Ag

Inventors

• Rupp Bastian
• Loeffelmann Jochen

Classifications

• F16H2057/02043

  for vehicle transmissions · CPC title

• F16H57/031

  characterised by covers or lids for gearboxes · CPC title

• F16H57/023

  Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly · CPC title

• F16H1/20

  involving more than two intermeshing members · CPC title

• F16H57/027 Primary

  characterised by means for venting gearboxes, e.g. air breathers · CPC title