Planetary gear transmisssion unit with planet shaft locking mechanism

A technology of planetary gear transmission and locking mechanism, applied in the direction of gear transmission, elements with teeth, mechanical power transmission, etc., can solve the problems of shortening the life of the planetary gear unit 10, damage, etc., and achieve the purpose of prolonging life and reducing damage Effect

Inactive Publication Date: 2011-01-05
HANSEN TRANSMISSIONS INT NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This rotation of planetary shaft 3 during gearbox operation can cause damage
Therefore, the life of the planetary gear unit 10 may be shortened

Method used

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  • Planetary gear transmisssion unit with planet shaft locking mechanism
  • Planetary gear transmisssion unit with planet shaft locking mechanism
  • Planetary gear transmisssion unit with planet shaft locking mechanism

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no. 1 example

[0053] According to a first embodiment of the invention, the planetary shaft locking mechanism may comprise a gear coupling which may also be referred to as a barrel gear coupling.

[0054] figure 2 A planetary gear unit 20 according to a first exemplary embodiment is shown. The planetary gear transmission unit 20 includes a housing 11 in which a plurality of planetary gears 12 , planetary shafts 13 and a planetary carrier 14 are arranged. The planetary gear unit 20 also includes a ring gear 15 and a sun gear 16 . The planet gears 12 are rotatably supported on the planet shafts 13 by means of planet gear bearings 17 . According to an embodiment of the present invention, the planetary gear bearing 17 may be, for example, a tapered roller bearing.

[0055] According to an embodiment of the invention, the planetary gear transmission unit 20 also includes a planetary shaft locking mechanism 18 in the form of a gear coupling, which can also be referred to as a barrel gear coupl...

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PUM

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Abstract

The present invention relates to a planetary gear transmisssion unit with planet shaft locking mechanism, provides a planetary gear transmission unit (20) comprising a planet carrier (14) which supports and locates circumferential spaced pairs of planet gears (12), and at least one planet shaft (13). The planetary gear transmission unit (20) furthermore comprises a planet shaft locking mechanism (18) between the at least one planet shaft (13) and the planet carrier (14) for preventing the at least one planet shaft (13) from rotating around its own axis. An advantage of a planetary gear transmission unit (20) according to embodiments of the invention is that rotation of the planet shafts (13) relative to his bore in the planet carrier (14) is prevented. The invention results in a free of wear contact between planet shaft (13) and planet carrier (14), thereby allowing all degrees of freedom of the planet shaft (13), without disturbing the load distribution between the planet gears (12) of a pair on one planet shaft (13).

Description

technical field [0001] The invention relates to a gear unit for a wind turbine. More specifically, the present invention relates to a planetary gear transmission unit with a planetary shaft locking mechanism, a gearbox comprising such a planetary gear transmission unit and a wind turbine comprising such a gearbox. Background technique [0002] A gearbox for a wind turbine may comprise at least one planetary gear unit comprising a planet carrier, planet gears, a sun gear and a ring gear. Figure 1a with Figure 1b A planetary gear unit 10 according to the prior art is shown schematically. The planetary gear transmission unit 10 includes a housing 1 in which a plurality of planetary gears 2 , planetary shafts 3 and planetary carriers 4 are arranged. The planetary gear unit 10 also includes a ring gear 5 and a sun gear 6 . The planet carrier 4 is connected to the rotor hub (not shown) of the wind turbine and is rotatably supported relative to the casing 1 by bearings 7 (see ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/44F16D1/112F16D1/10F16H57/04F16H57/02F03D11/00
CPCF16H57/082F16H2001/289Y02E10/722F03D11/02F05B2260/40311F03D15/00Y02E10/72F03D15/10F03D80/70
Inventor 本·苟撒尔特乔·娄恩德尔斯罗格·博盖尔特约翰·吕尔坎沃伦·斯穆克
Owner HANSEN TRANSMISSIONS INT NV
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