Spur gear transmission

Patent metadata

Field	Value
Publication number	US-11867276-B2
Application number	US-202017436397-A
Country	US
Kind code	B2
Filing date	Feb 19, 2020
Priority date	Mar 4, 2019
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

The present invention relates to a spur gear transmission ( 25 1 ), comprising
a transmission housing ( 12 ), an output gear ( 14 ) rotatably mounted in the transmission housing ( 12 ) about a first axis of rotation ( 16 ), a drive gear ( 18 ) that is rotatably mounted in the transmission housing ( 12 ) about a second axis of rotation ( 20 ), wherein
the first axis of rotation ( 16 ) and the second axis of rotation ( 20 ) run parallel to each other and spaced apart by a fixed center distance (A), and
an idler gear ( 22 ), which meshes with the output gear ( 14 ) and the drive gear ( 18 ) and is rotatably mounted in a carrier part ( 26 ) about a third axis of rotation ( 24 ), wherein
the third axis of rotation ( 24 ) runs parallel to the first axis of rotation ( 16 ) and to the second axis of rotation ( 20 ) and

the carrier part ( 26 ) can be placed in a receptacle ( 37 ) of the transmission housing ( 12 ) and is designed in such a way that the third axis of rotation ( 24 ) can be moved perpendicular to the first axis of rotation ( 16 ) and/or to the second axis of rotation ( 20 ) in order to compensate for differences in diameter of the output gear ( 14 ), the drive gear ( 18 ) and the idler gear ( 22 ).

First claim

The invention claimed is:

1. A spur gear transmission ( 25 ), comprising
a transmission housing ( 12 ),
an output gear ( 14 ) rotatably mounted in the transmission housing ( 12 ) about a first axis of rotation ( 16 ),
a drive gear ( 18 ) that is rotatably mounted in the transmission housing ( 12 ) about a second axis of rotation ( 20 ), wherein
the first axis of rotation ( 16 ) and the second axis of rotation ( 20 ) run parallel to each other and spaced apart by a fixed center distance (A), and

an idler gear ( 22 ), which meshes with the drive gear ( 14 ) and the output gear ( 14 ) and is rotatably mounted in a carrier part ( 26 ) configured in the manner of a cassette, the cassette substantially surrounding the idler gear ( 22 ), and mounted about a third axis of rotation ( 24 ), wherein
the third axis of rotation ( 24 ) runs parallel to the first axis of rotation ( 16 ) and to the second axis of rotation ( 20 ) and
the carrier part ( 26 ) can be placed, as said cassette, in a receptacle ( 37 ) of the transmission housing ( 12 ) and secured therein, and is designed in such a way that the third axis of rotation ( 24 ) can be moved perpendicular to the first axis of rotation ( 16 ) and/or to the second axis of rotation ( 20 ) in order to compensate for differences in diameter of the output gear ( 14 ), the drive gear ( 18 ) and/or the idler gear ( 22 ).

2. The spur gear transmission ( 25 ) according to claim 1 ,
characterized in that the carrier part ( 26 ) has at least one linear guide ( 28 ), with which the carrier part ( 26 ) is mounted in the transmission housing ( 12 ) in a movable manner in at least one direction perpendicular to the first axis of rotation ( 16 ) and the second axis of rotation ( 20 ).

3. The spur gear transmission ( 25 ) according to claim 1 , characterized in that the first axis of rotation ( 16 ) and the second axis of rotation ( 20 ) lie on a connecting straight line (B) and the third axis of rotation ( 24 ) is arranged at a distance from the connecting straight line.

4. The spur gear transmission ( 25 ) according to claim 1 , characterized in that the spur gear transmission ( 25 1 ) has form-fitting means ( 42 ) with which the carrier part ( 26 ) is guided and/or secured in the transmission housing ( 12 ).

5. The spur gear transmission ( 25 ) according to claim 1 ,
characterized in that the output gear ( 14 ) is mounted in a first transmission housing part ( 30 ) and the drive gear ( 18 ) in a second transmission housing part ( 32 ) and the first transmission housing part ( 30 ) and the second transmission housing part ( 32 ) can be connected to one another in a detachable manner, wherein the carrier part ( 26 ), in the connected state, protrudes into the first transmission housing part ( 30 ) and the second transmission housing part ( 32 ).

6. The spur gear transmission ( 25 ) according to claim 2 ,
characterized in that the linear guide ( 28 ) has a first linear guide section ( 38 ) and a second linear guide section ( 40 ), wherein the first linear guide section ( 38 ) interacts with the first transmission housing part ( 30 ) and the second linear guide section ( 40 ) interacts with the second transmission housing part ( 32 ).

7. The spur gear transmission ( 25 ) according to claim 1 ,
characterized in that the spur gear transmission has actuators ( 46 ) with which the movability of the third axis of rotation can be adjusted.

8. The spur gear transmission ( 25 1 ) according to claim 1 ,
characterized in that the output gear ( 14 ) is made of a first material, the drive gear ( 18 ) is made of a second material, and the idler gear ( 22 ) is made of a third material.

9. The spur gear transmission ( 25 1 ) according to claim 1 ,
characterized in that
the output gear ( 14 ) and/or the drive gear ( 18 ) are interchangeably mounted in the transmission housing ( 12 ) and
the idler gear ( 22 ) is interchangeably mounted in the carrier part ( 26 ).

Assignees

• Ims Gear Se & Co Kgaa
• Continental Automotive Tech Gmbh

Inventors

• Lauble Michael
• Jungbecker Johann
• Synovzik Wilfried

Classifications

• F16H57/023 Primary

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

• F16H1/20 Primary

  involving more than two intermeshing members · CPC title

• F16H2057/02021

  with means for adjusting alignment · CPC title

• F16H1/26

  Special means compensating for misalignment of axes · CPC title