IP Library Granted Patent US 9,267,593
Granted Patent B2
US 9,267,593 · App. 14/335,397 · Granted Feb 23, 2016

Planetary gear with a differential gear

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Quick Facts
Patent No.
US 9,267,593
App. No.
14/335,397
Granted
Feb 23, 2016
Kind
B2
Abstract

A planetary gear ( 1 ) with a differential gear, a planet carrier ( 4 ) to which at least one planetary gear ( 7 ) is rotatably connected with at least one sun wheel ( 8, 9 ) that is at least in meshing operative engagement with one planetary gear, whereby the planetary carrier ( 4 ) is supported by at least one bearing ( 11 ) axially and/or radially in a housing ( 12 ), whereby a first raceway ( 15 ) of the bearing ( 11 ) is formed on a housing-fixed member and a second raceway ( 17 ) of the bearing ( 11 ) is formed on a planetary carrier-fixed member, whereby a support pot ( 18 ) encompasses the said bearing ( 11 ) radially at least partially on the outside, wherein the support pot ( 18 ) is supported on a radially outer side ( 24 ) of the planet carrier ( 4 ).

Claims (10)

1. A planetary gear ( 1 ) with a differential gear, a planet carrier ( 4 ) to which at least one planetary wheel is rotatably connected with at least one sun wheel that is at least in meshing operative engagement with the at least one planetary wheel, whereby the planetary carrier ( 4 ) is supported by at least one bearing ( 11 ) axially and/or radially in a housing ( 12 ), whereby a first raceway ( 15 ) of the bearing ( 11 ) is formed on a housing-fixed member and a second raceway ( 17 ) of the bearing ( 11 ) is formed on a planetary carrier-fixed member, whereby a support pot ( 18 ) encompasses the said bearing ( 11 ) radially at least partially on the outside, wherein the support pot ( 18 ) is supported on a radially outer side ( 24 ) of the planet carrier ( 4 ).

2. The planetary gear recited in claim 1 , wherein the bearing ( 11 ) has at least one second raceway ( 17 ) and a bearing shell ( 19 ) is formed as the support pot ( 18 ).

3. The planetary gear ( 1 ) recited in claim 1 , wherein the first raceway ( 15 ) is formed on the housing ( 12 ), or on an inner bearing shell ( 14 ), or bearing ring separate from the housing ( 12 ).

4. The planetary gear ( 1 ) recited in claim 1 , wherein the bearing ( 11 ) is formed as combined axial-radial rolling bearings ( 26 ), or is designed as angular contact ball bearings ( 29 ), or as tapered rolling bearings, or spherical rolling bearings.

5. The planetary gear ( 1 ) recited in claim 1 , wherein the at least one sun wheel includes first and second sun wheels, wherein the planetary gear ( 1 ) is formed as a spur wheel gear with the first and second sun wheels, and first and second planetary wheel sets, whereby the planetary wheels of the first and second planetary wheel sets mesh with one another and the planetary wheel of the first planetary wheel set meshes with the first sun wheel, while the planetary wheel of the second planetary wheel set meshes with the second sun wheel.

6. The planetary gear ( 1 ) recited in claim 1 , wherein a frictional and/or positive connection between the support pot ( 18 ) and the planetary carrier ( 4 ) is provided on the collar ( 23 ).

7. The planetary gear ( 1 ) recited in claim 6 , wherein an axial length of an interference fit is selected as a function of a press-fit force to be transmitted.

8. The planetary gear ( 1 ) recited in claim 1 , wherein the support pot ( 18 ) has an axially projecting collar ( 23 ), which is supported on a circumferential surface of the planetary carrier ( 3 ).

9. The planetary gear ( 1 ) recited in claim 8 , wherein the collar ( 23 ) is supported on the circumferential surface in the region of an axially-extending flange ( 25 ) of the planetary carrier ( 4 ).

10. The planetary gear ( 1 ) recited in claim 8 , wherein the collar ( 23 ) is supported on a largest or smallest outer diameter of the planetary carrier ( 4 ).

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
CHANGE OF NAME Recorded Dec 3, 2015
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037207/0390 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2014
From: BIERMANN, THORSTEN; MARTINI, HARALD
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 033345/0053 →