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Semi direct drive permanent magnet wind turbine generator bearing lubrication system

A technology for lubricating wind turbines and bearings, which is applied to the lubrication of engines, bearing components, shafts and bearings, etc., and can solve problems such as rising bearing temperature and poor grease discharge channels, so as to increase power generation, reduce heat generation, reduce The effect of economic loss

Active Publication Date: 2014-11-19
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The present invention provides a wind-driven generator bearing lubrication system in order to solve the technical problem that the current wind-driven generator set bearing grease discharge channel is not smooth and causes the failure of the bearing temperature to rise

Method used

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  • Semi direct drive permanent magnet wind turbine generator bearing lubrication system
  • Semi direct drive permanent magnet wind turbine generator bearing lubrication system
  • Semi direct drive permanent magnet wind turbine generator bearing lubrication system

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Embodiment Construction

[0030] A bearing lubrication system for a semi-direct drive permanent magnet wind power generator, comprising an end cover 1 with a bearing chamber, a bearing 2 arranged in the bearing chamber of the end cover 1, and bearing outer covers respectively arranged on both sides of the bearing chamber of the end cover 1 3 and the bearing inner cover 4; the rotating shaft 5 passing through the bearing 2 is provided with an oil seal 6 at the part located inside the bearing outer cover 3; the end cover 1 is located between the outer surface of the bearing 2 and the inner side of the bearing outer cover 3 toward the axis of the rotating shaft The oil deflecting ring 7 is protruded from the circle in the direction, and the position corresponding to the oil seal 6 and the oil deflecting ring 7 extends to the side away from the axial direction of the rotating shaft 5 to form an oil throwing ring 8; The waste grease storage space 9 corresponding to the position of the bearing ball is formed ...

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Abstract

The invention relates to a bearing lubrication system and particularly relates to a semi direct drive permanent magnet wind turbine generator bearing lubrication system. The semi direct drive permanent magnet wind turbine generator bearing lubrication system comprises an end cover with a bearing room, a bearing, a bearing outer cover and a bearing inner cover. The end cover is between a bearing outer side face and the inner side of the bearing outer cover and circumferentially projects toward a rotation shaft axis direction to form an oil retaining ring. A position of an oil seal corresponding to the oil retaining ring extends to one side far from the rotation shaft axis direction to form an oil slinger. A waste oil storage space corresponding to a bearing ball position is formed among the oil retaining ring, the oil slinger and the bearing outer side face. A waste oil discharge channel is formed at the gap between the oil retaining ring and the oil slinger. A waste lubrication oil collection space which communicates to the waste oil discharge channel is formed among the outer wall of the end cover, an oil seal outer wall and the inner wall of the bearing outer cover. According to the system, since a bearing lubrication channel is smooth, and the heating of a wind turbine generator bearing caused by the excessive accumulation of lubrication oil in the working of the bearing is effectively reduced.

Description

technical field [0001] The invention relates to a bearing lubricating system, in particular to a bearing lubricating system for a semi-direct drive permanent magnet wind power generator. Background technique [0002] With the rapid development of the wind power industry and the rapid expansion of the installed capacity of wind turbines, the failures of major parts and components in the wind turbines operating in wind farms have also increased significantly. Bearing failure in wind turbines is one of them. [0003] Bearing failures account for more than 60-70% of wind turbine failures, and about 35% of the causes of bearing failures are caused by the bearing heating caused by unsmooth grease discharge channels and poor lubrication in the lubrication system. Therefore, ensuring bearing lubrication is an important part of the on-site maintenance project of wind turbines. At present, the bearing lubrication of high-power wind turbines is lubricated by automatic lubricator, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/173F16C33/66F16N31/00
Inventor 程东星张晋军
Owner CRRC YONGJI ELECTRIC CO LTD
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