Speed-up planetary gear
A speed reducer and planetary technology, which is applied in the direction of engines, mechanical equipment, engine functions, etc., can solve the problems of damage to the tooth surface of low-speed sun gears, damage, poor alignment of low-speed sun gears, etc., and achieve the effect of preventing damage
Inactive Publication Date: 2011-06-15
MITSUBISHI HEAVY IND LTD
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Problems solved by technology
Therefore, the alignment of the low-speed sun gear is poor (the distance between the center of the low-speed sun gear and the center of the low-speed planetary gear rotating around the low-speed sun gear is different for each low-speed planetary gear), and the collision with the low-speed
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no. 1 approach
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A planetary speed increaser (25) includes a low speed planetary speed increaser and a high speed planetary speed increaser. The low speed planetary speed increaser includes a ring gear connected to a power input shaft, a set of planetary gears rotatably supported by a fixed shaft and s sun gear (3) the shaft of which is connected a carrier (12) of the high speed planetary speed increaser. A sun gear of the high speed planetary speed increaser is connected to a power out put shaft. In order to prevent damages to gears or bearings by automatic alignment of the sun gear of the low speed planetary speed increaser with the carrier shaft, the sun gear (3) has a flanged portion (20) which is coupled with anther flanged portion (16) of the carrier shaft (13) by means of a coupling sleeve (14).
Description
planetary gearbox technical field The present invention relates to a planetary speed reducer suitable for use in windmills and the like. Background technique As a planetary gear device (hereinafter, referred to as "planetary speed-upping gear") used in a windmill, for example, a technique disclosed in Patent Document 1 is known. Patent Document 1: Japanese Patent Laid-Open No. 2005-233277 However, in such a conventional planetary speed reducer, the flange formed on the front end portion of the shaft of the low-speed (first-stage) sun gear is directly fixed (directly mounted) to the high-speed planetary gear by a plurality of bolts and nuts. on the wheel stand. Therefore, the alignment of the low-speed sun gear is poor (the distance between the center of the low-speed sun gear and the center of the low-speed planetary gear rotating around the low-speed sun gear is different for each low-speed planetary gear), and the collision with the low-speed sun gear The load recei...
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Login to View More IPC IPC(8): F16H1/46
CPCF05B2260/40311Y02E10/72F03D11/02Y02E10/722F16H1/46F03D15/00F16H1/36F16H57/08F03D15/10F03D80/70
Inventor 正田功彦酒井贤治铃木和峰
Owner MITSUBISHI HEAVY IND LTD