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Planet wheel retarding stage in wind driven generator gearbox

A technology of wind turbines and planetary gears, which is applied in the direction of engine components, gear transmissions, gear lubrication/cooling, etc., can solve problems such as complex lubrication methods and structures, and achieve the effects of compact structure, easy implementation, and high reliability

Active Publication Date: 2016-03-23
NANJING HIGH SPEED GEAR MFG
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a lubricating mechanism for a series of practical problems such as the bearings supporting the planetary wheels of the reduction stage in the gearbox of a wind power generator are mostly rolling bearings. Planetary gear reduction stages in relatively simple wind turbine gearboxes

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  • Planet wheel retarding stage in wind driven generator gearbox
  • Planet wheel retarding stage in wind driven generator gearbox
  • Planet wheel retarding stage in wind driven generator gearbox

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Embodiment Construction

[0020] The accompanying drawings disclose the specific structures of the embodiments of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.

[0021] Depend on figure 1 and figure 2 It can be seen that the planetary gear transmission used for wind power generators includes a planetary carrier 3, a planetary gear 1, a planetary gear shaft 4, an inner ring gear 7 and a sun gear 13. In the planetary gear train, at least three evenly distributed A planetary gear pin 4 supporting the planetary gear 1, they are fixedly installed in the planetary carrier 3, the planetary gear 3 meshes with the ring gear 7 and the sun gear 13 at the same time, the front stage transmission shaft 15 is docked with the planetary carrier 3 of the current stage, and the The first stage sun gear is docked with the next stage transmission shaft 14.

[0022] In this technical solution, the pin shaft 4 of the plane...

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Abstract

The invention relates to a planet wheel retarding stage in a wind driven generator gearbox. The planet wheel retarding stage comprises a planet carrier wheel system, wherein planet wheel pin rolls are hollow shafts; the two ends of each planet wheel pin roll are sealed by plug nuts to form an oil storage cavity; an oil duct communicated with the oil storage cavities is formed in a planet carrier side plate; the oil duct in the planet carrier side plate is communicated with a forced oil supply oil duct in a box through an oil duct in a slide ring and an oil ring; a lubricating oil hole is formed in the middle fracture surface of each planet wheel pin roll; symmetrical compensatory lubricating oil holes are further formed in the two sides of each lubricating oil hole, equal-length straight tubes which are inserted into the corresponding oil storage cavity are arranged in the two compensatory lubricating oil holes respectively, and oil inlets are positioned on end parts of the straight tubes; a planet wheel is supported on the planet wheel pin rolls through slide bearings; oil supply ring slots which correspond to the lubricating oil holes in the planet wheel pin rolls are further formed in the slide surfaces of the slide bearings; and the sections, corresponding to the compensatory lubricating oil holes, of the slide surfaces at the two sides of the oil supply ring slots are provided with axial oil storage grooves, so that lubricating oil which reaches each slide bearing forms a layer of oil film on the slide surface.

Description

technical field [0001] The invention relates to a planetary gear reduction stage in a wind power generator gearbox. Background technique [0002] Compared with traditional thermal power generation, wind power generation has the advantage of non-polluting power generation. Compared with hydropower generation, it has the advantages of low infrastructure cost, small footprint, and convenient maintenance. It is easy to cause certain hidden dangers to the downstream. [0003] In wind power generators, the gearbox is the key component of the wind power generator. At present, the gear box of the wind power generator generally contains a planetary gear reduction stage. Most of the bearings supporting the planetary gear in the planetary gear reduction stage are rolling bearings. At present, there are very few Use plain bearings. The reason for this lies in the frequently occurring unstable operating conditions and the temporarily extremely low sliding speeds of the slide bearings u...

Claims

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Application Information

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IPC IPC(8): F16H1/28F16H57/021F16H57/04
CPCF16C33/1055F16C17/10F16C2360/31F16C2361/61F16H1/28F16H57/021F16H57/0434
Inventor 戚松张合超王朝阳何爱民
Owner NANJING HIGH SPEED GEAR MFG
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