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Planetary gear set and method for supplying oil to tooth engagement regions and bearings of a planetary gear set of said type

A technology of planetary gear transmission and planetary gear, which is applied in the direction of gear transmission, transmission, transmission parts, etc., can solve problems such as the complex structure of the oil supply device, and achieve the effect of simple structure

Inactive Publication Date: 2016-03-09
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fact that the corresponding toothing areas and bearings are widely spaced from one another in area, the known oil supply devices mostly have a very complex structure

Method used

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  • Planetary gear set and method for supplying oil to tooth engagement regions and bearings of a planetary gear set of said type
  • Planetary gear set and method for supplying oil to tooth engagement regions and bearings of a planetary gear set of said type

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Embodiment Construction

[0024] figure 1 The planetary gear transmission 1 shown in is designed to be two-stage and includes a housing 2, which is shown only partially for the sake of simplification.

[0025] In order to form the first transmission stage, a vertically extending sun gear shaft 3 driven by a motor, not shown further, is rotatably held in the housing 2 by means of corresponding bearings 4 and 5. Currently, the driving of the sun gear shaft 3 is directly realized. Alternatively, the drive can also be achieved indirectly, in particular via a drive shaft guided laterally in the housing 2 which drives the sun gear shaft 3 via a corresponding bevel gear.

[0026] In the area above the sun gear shaft 3, a sun gear 6 is mounted in a rotationally fixed manner. In addition, a planetary gear carrier 7 is rotatably supported in the housing 2, which accommodates a plurality of gears 8. The fixing of the gear 8 on the planetary gear carrier 7 is achieved by a shaft 9 which is firmly fixed on the planeta...

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Abstract

The invention relates to a planetary gear set (1) comprising a housing (2), a sun gear shaft (3) which is mounted rotatably in the housing (2) and which can be driven by means of a motor, a sun gear (6) which is held rotationally conjointly on the sun gear shaft (3), a planet gear carrier (7) which is mounted rotatably in the housing (2) and on which rotatably mounted planet gears (8) are held, wherein the planet gears (8) engage with the sun gear (6), an internal gear (11) which is arranged in positionally fixed fashion in the housing (2) and which has an internal toothing and which engages with the planet gears (8), a drive output flange which is operatively connected to the planet gear carrier (7) and which is mounted rotatably on the housing (2), and at least one oil supply which is designed to deliver oil to tooth engagement regions and / or bearings, wherein the oil supply comprises a sun gear shaft bore (20) which extends in the longitudinal direction of the sun gear shaft (3), a gap seal bushing (21) which is fluidically connected to the sun gear shaft bore (20), a planet gear carrier distributor (22) which is fluidically connected to the gap seal bushing (21) and which is provided on the planet gear carrier (7), and oil-conducting lines (23, 24) which are arranged on the planet gear carrier (7) and which are fluidically connected to the planet gear carrier distributor (22) and which lead to tooth engagement regions and / or bearings.

Description

Technical field [0001] The present invention relates to a planetary gear transmission device, comprising: a housing; a sun gear shaft rotatably supported in the housing and capable of being driven by an engine; a sun gear, which is held on the sun gear shaft in a torsion-resistant manner; A planetary gear carrier supported in the housing, and a rotatably supported planetary gear is held on the planetary gear carrier, wherein the planetary gear meshes with the sun gear; a fixedly arranged position in the housing with internal teeth An internal gear that meshes with the planetary gears; a driven flange operatively connected to the planetary gear carrier and rotatably supported on the housing; and at least one oil supply device, which is designed such that The oil supply device delivers oil to the tooth meshing area and / or bearing. In addition, the present invention also relates to a method for supplying oil to the tooth meshing area and bearings of this planetary gear transmissio...

Claims

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Application Information

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IPC IPC(8): F16H57/04
CPCF16H57/043F16H57/0456F16H57/0471F16H57/0479F16H57/0486F16H1/28F16H1/46F16H57/0431
Inventor 阿利·凯末尔·库柯克亚武兹弗兰克·克施特格斯
Owner SIEMENS AG
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