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Planetary gear and wind power generation device

A technology of planetary gears and sun gears, which is applied in wind power generation, wind power engines, transmission parts, etc., can solve problems such as locked bearings and burnout, and achieve good sliding properties

Active Publication Date: 2013-07-03
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the gap between the outer peripheral surface of the planetary pin 51 and the inner peripheral surface of the sliding bearing 53 on the side of the planetary gear 52 disappears, which may cause damage to the bearing such as burning and locking.

Method used

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  • Planetary gear and wind power generation device
  • Planetary gear and wind power generation device
  • Planetary gear and wind power generation device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0064] refer to figure 1 , and the wind power generator according to the embodiment of the present invention will be described. here, figure 1 It is a figure which shows the example of the whole structure of the wind power generator which concerns on embodiment of this invention.

[0065] As shown in the figure, the wind power generation device 1 mainly includes: a tower 2 erected on the foundation B; a nacelle 3 arranged on the upper end of the tower 2; a hub 4 installed in the nacelle 3; 5 rotating blades.

[0066] Such as figure 1 As shown, tower 2 is upward from foundation B ( figure 1 above), and the upper end of the tower 2 is provided with a nacelle 3 .

[0067] The nacelle 3 supports the hub 4 , and accommodates a speed reducer 10 and a generator 9 inside the nacelle 3 . That is, inside nacelle 3 are provided: main shaft 7 connected to hub 4 ; speed up gear 10 connected to main shaft 7 ; and generator 9 connected to output shaft 8 of speed up gear 10 .

[00...

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Abstract

The invention aims to provide a planetary gear and wind power generation device capable of preventing bearing damages caused by burning, locking and the like caused by heat expansion of the bearing. The planetary gear is provided with an annular gear; a sun gear arranged on the inner periphery of the annular gear; at least one planetary gear (24) arranged between the annular gear and the sun gear for engaging with the annular gear and the sun gear; a planetary pin (22) fixed on a planetary frame and inserted into a shaft hole of the planetary gear (24); and a slide bearing (23) arranged between the planetary gear (24) and the planetary pin (22). At least a slide face of the slide bearing (23) is made of resin material and the slide bearing is arranged in a press-connection part of the outer periphery of the planetary pin (22) pressed against the inner periphery of the shaft hole of the planetary gear (24).

Description

technical field [0001] The present invention relates to, for example, a planetary gear device and a wind power generator used in a speed increaser of a wind power generator or the like. Background technique [0002] Generally, a planetary gear device is known as a power transmission mechanism that decelerates or increases the rotational speed of rotational power input from a driving power source. The planetary gear unit includes: a ring gear having internal teeth; a sun gear having external teeth; and planetary gears disposed between the ring gear and the sun gear so as to mesh with them. [0003] This kind of planetary gear device is widely used as a speed change device or a speed increase and deceleration device because it can obtain a large speed-up or speed-down ratio with a small number of stages and can transmit a large torque. Use it as a speed booster. Here, the wind power generation device includes: a hub on which the rotating blades are mounted; a nacelle for acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/08
CPCF03D15/00F03D15/10F03D80/70F05B2260/40311F16C17/02F16C33/20F16C2208/32F16C2208/36F16C2240/50F16C2360/31F16H57/0479F16H2057/085Y02E10/72
Inventor 諌山秀一西田英朗
Owner MITSUBISHI HEAVY IND LTD
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