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Planetary gear speed reducer

A planetary gear deceleration, external gear technology, applied in the direction of gear transmission, belt/chain/gear, engine, etc., can solve the problems of reduced transmission torque efficiency, rotation fluctuation, etc., to reduce bending stress, reduce loss, high efficiency The effect of torque transmission

Active Publication Date: 2012-05-09
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure may cause a reduction in the efficiency of the torque transmission or a fluctuation in the rotation due to the reasons described later.

Method used

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  • Planetary gear speed reducer

Examples

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Embodiment Construction

[0032] Hereinafter, an example in which the planetary gear reducer according to the first embodiment of the present invention is applied to a yaw drive device of a wind power generator will be described with reference to the drawings.

[0033] First, use Figure 10 ~ Figure 12 A description will be given from the outline of a wind power generator incorporating this planetary gear reducer.

[0034] Such as Figure 10 As shown, this wind power generator 10 is equipped with a power generation unit 12 at the uppermost part of a cylindrical column 11 . A yaw (Yaw) driving device 99 and a pitch (Pitch) driving device 98 are assembled on the power generating unit 12 . The yaw driving device 99 is a device for controlling the rotation angle of the power generating unit 12 as a whole relative to the cylindrical pillar 11, and the pitch driving device 98 is a device for controlling the pitch angle of the three windmill blades installed on the nose cone 18 .

[0035] In this embodime...

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PUM

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Abstract

The present invention provides a planetary gear speed reducer which realizes high-efficiency torque transmission and can improve load capacity. The planetary gear speed reducer (100) of the invention is provided with the following components: an eccentric shaft (132) which is provided with an eccentric member (134); a pair of eccentric bearings (154) which rotatably support the eccentric shaft (132); an auxiliary bearing component (148) which is equipped separately from the eccentric bearing (154) and supports the eccentric shaft (132); an outer gear (142) which is interlocked with the eccentric member (134) and swings; an inner gear (144) which is internally engaged with the outer gear (142); and a gear rack component (156) which is synchronous with a self rotation component of the outer gear (142), wherein, the auxiliary bearing component (148) is supported by a bearing pin (152) which is formed separately with the inner teeth of the inner gear (144).

Description

technical field [0001] This application claims priority based on Japanese Patent Application No. 2010-230702 filed on October 13, 2010. The entire content of the application is incorporated in this specification by reference. [0002] The invention relates to a planetary gear reducer. Background technique [0003] The planetary gear reducer of Patent Document 1 includes: an eccentric body shaft having an eccentric body; a pair of eccentric body bearings that rotatably support the eccentric body shaft; and an auxiliary bearing member that is provided separately from the eccentric body bearings and supports the an eccentric body shaft; an external gear that oscillates in conjunction with the eccentric body; an internal gear that internally meshes with the external gear; and a wheel frame component that is synchronized with the rotation component of the external gear. In the planetary gear reducer of Patent Document 1, the eccentric body shaft is supported not only by the ecc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/32F03D7/04
CPCY02E10/723Y02E10/722Y02E10/72
Inventor 峯岸清次
Owner SUMITOMO HEAVY IND LTD
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