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Main bearing sealing system for wind generating set

A technology for wind turbines and sealing systems, applied in bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of burnt out bearings, unavailability of bearings, waste of lubricating grease, etc.

Inactive Publication Date: 2013-05-15
SUZHOU TITPWE WIND ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once scratches occur, the possibility of repairing or replacing the positioning ring before and after the bearing is very small, which will cause a lot of waste of lubricating grease, the bearing will not be well lubricated, and even burn the bearing, causing downtime accidents

Method used

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  • Main bearing sealing system for wind generating set
  • Main bearing sealing system for wind generating set
  • Main bearing sealing system for wind generating set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] figure 1 The marks shown are as follows: main shaft 1, bearing front positioning ring 2, skeleton oil seal 3, V-shaped dust ring 4, sealing spacer 5, front sealing end cover 6, bearing front end cover 7, bearing housing 8, main bearing 9, O-ring 10.

[0013] figure 1 A new type of sealing device for the main bearing of a wind power generating set is shown, including bearing front and rear positioning rings, front and rear sealing covers, sealing spacers, skeleton oil seals, V-shaped dustproof rings, O-rings, front and rear bearing end covers, etc.

[0014] figure 1 It is the structural relationship of each component of the sealing system when it is put into operation for the first time. When it is detected that the contact parts between the V-shaped dustproof ring, the skeleton oil seal and the front and rear positioning rings of the bearing, and the dents caused by scratches exceed the allowable value, remove a piece of spacer on the outside and adjust it to figur...

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Abstract

The invention provides a main bearing sealing system for a wind generating set. The main bearing sealing system comprises front and rear positioning rings of a bearing, front and rear sealing covers, a sealing and spacing piece, a framework oil seal, a V-shaped wiper scraper seal, an O-shaped ring, and a bearing end cover. The V-shaped wiper scraper seal is arranged on an atmosphere side, and the framework oil seal is arranged on a grease side. Both the V-shaped wiper scraper seal and the framework oil seal are provided with sealing lips which can freely slide on the surface of a shaft.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a main bearing sealing system of a wind power generating set. Background technique [0002] Doubly-fed wind turbines are currently the most widely used models. Its working principle is that the impeller rotates under the action of wind energy, thereby driving the main shaft to transmit energy to the gearbox, and finally the gearbox transmits the energy to the generator, and the generator outputs electric energy. During this process, the main bearing is subjected to the axial and radial loads from the impeller. Whether it can work safely and effectively is very important to the fan. It is abnormal to seal the main bearing well to ensure that it is well lubricated. important. [0003] At present, the main bearing seals of wind turbines mainly include V-shaped dust rings, skeleton oil seals, and labyrinth seals. These seals are in direct contact with the front and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/78
Inventor 黄勇
Owner SUZHOU TITPWE WIND ENERGY TECH
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