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Step-up mechanism for wind-powered generator

A speed increaser and thrust technology, applied in the field of speed increasers for wind power generation, can solve the problems of increased weight of the speed increaser, increased manufacturing costs, and increased construction costs, and can prevent damage to fragile parts, prolong service life, and prolong service life. Effect

Inactive Publication Date: 2013-10-23
SUMITOMO HEAVY IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the safety factor of each element is increased, it is natural that the overall size of the speed increaser will increase and the weight will also increase, which will cause a problem that the manufacturing cost and construction cost will increase.

Method used

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  • Step-up mechanism for wind-powered generator
  • Step-up mechanism for wind-powered generator
  • Step-up mechanism for wind-powered generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[0033] About the basic structure and the utilized Image 6 and Figure 7 The structure of the description is the same, so repeated description is omitted, and the structure of the speed increaser itself will be described in detail below.

[0034] figure 1 It is an overall cross-sectional view showing an example of a speed-up gear 50 for wind power generation according to an embodiment of the present invention, figure 2 is a cross-sectional view showing its main parts.

[0035] First, refer to figure 1 , this wind power generation speed up gear 50 includes a planetary gear mechanism 52 at the primary stage, and includes a first parallel shaft gear mechanism 54 and a second parallel shaft gear mechanism 56 at the middle and rear stages. Rotor head input from input shaft 58 (same as previous rotor head 4: ref. Image 6 and Figure 7 ) is...

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PUM

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Abstract

Obtained by the present invention is a step-up mechanism for a wind-powered generator that is compact, lightweight, low-cost, and has high reliability and long life. The step-up mechanism (50) for a wind-powered generator comprises the following: a first helical pinion (helical gear) (90) that is provided in the power transmission system of the step-up mechanism (50); a second intermediate axle (92) that is assembled with the first helical pinion (90); and a buffer mechanism (110) that allows the second intermediate axle (92) to move in the axial direction when a thrust load greater than or equal to a predetermined size acts on the second intermediate axle (92).

Description

technical field [0001] The invention relates to a speed increaser for wind power generation. Background technique [0002] For example, disclosed in Patent Document 1 as Figure 6 ~ Figure 8 The speed booster for wind power generation shown. [0003] exist Image 6 and Figure 7 Among them, the wind power generator 1 has: a pillar 2 erected on a base 6 ; a nacelle 3 arranged on the upper end of the pillar 2 ; and a rotor head 4 assembled to be rotatable relative to the nacelle 3 . A plurality of (3 in the illustrated example) windmill blades (windmill wings) 5 are installed on the rotor head 4 . Inside the nacelle 3 , a speed increaser 20 and a generator 11 are connected to the rotor head 4 . [0004] When the wind hits the wind turbine blades 5 , the rotor head 4 rotates, and the rotation of the rotor head 4 is transmitted to the generator 11 in a state of being accelerated by the speed increaser 20 . Thereby, the relatively slow rotation of the rotor head 4 (although ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/02F16C19/36F16C25/04F16C27/06F16C27/08F16F7/00F03D80/00F03D15/00F03D80/70
CPCF05B2260/4031F16C2360/31Y02E10/722F16C2361/61F16C25/06F16C19/54F03D11/02F03D15/00F03D15/10F03D80/70Y02E10/72
Inventor 原一敬桥本笃佐藤泰正小西敏之兼光雅宏伊奈拓郎
Owner SUMITOMO HEAVY IND LTD