Patent ID: 7985155
Filing Date: 2011-07-26
Classification: F16C,F16D,F16H

Abstract:
1. A planetary transmission having at least one gearset ( 1 ) comprising planetary gears ( 2 ) mounted for rotation on a planetary gear carrier ( 3 ) with one of a disk clutch and a disk brake ( 4 ) comprising an inner disk carrier ( 5 ) which, via a cylindrical portion ( 6 ) integrally connected thereto, being connected in a rotationally fixed manner to a shaft ( 8 ) that supports one of the inner disk carrier ( 5 ) and another rotating component of the planetary transmission, such that the planetary carrier ( 3 ) is radially supported for rotation on the cylindrical portion ( 6 ), and further, such that the planetary carrier ( 3 ) being axially supported by a first axial bearing ( 9 ), on the inner disk carrier ( 5 ), and a second axial bearing ( 10 ), on a sun gear ( 11 ) which meshes with the planetary gears ( 2 ) of the at least one planetary gearset ( 1 ), and with a lubrication oil supply for lubricating and cooling bearings and the one of the disk clutch and the disk brake components, such that the first axial bearing ( 9 ) comprises at least one group of rollers ( 15 ) guided in a cage ( 14 ) and a first check-disk ( 16 ) located adjacent the planetary carrier ( 3 ) and the inner disk carrier ( 5 ) and a second check-disk ( 17 ) for the at least one group of rollers ( 15 ), and such that the first check-disk ( 16 ) is a flanged disk with a radially orientated rolling section ( 16 a ) for the at least one roller group ( 15 ) of the first axial bearing ( 9 ) and, radially inside, with a cylindrical section ( 16 b ) offset relative to the rolling section ( 16 a ), the cylindrical section ( 16 b ) being arranged co-axially with the shaft ( 8 ) in a central bore ( 18 ) of the planetary carrier ( 3 ), between the central bore ( 18 ) and the cylindrical portion ( 6 ) of the inner disk carrier ( 5 ), to form a slide bearing ( 19 ) with the cylindrical portion ( 6 ), the sun gear ( 11 ) being rotationally fixed to and directly radially supported on the cylindrical portion ( 6 ) of the inner disk carrier ( 5 ), the cylindrical portion ( 6 ) of the inner disk carrier ( 5 ) being integral with the inner disk carrier ( 5 ) and being rotationally fixed to and radially supported on the shaft ( 8 ).