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Wind generating set main shaft self-aligning slide bearing

A technology for wind turbines and sliding bearings, which is applied to wind turbine components, wind engines, sliding contact bearings, etc., and can solve problems such as lack of oiling and maintenance of bearings, troublesome installation and disassembly of rolling bearings, poor safety and reliability, etc., to achieve Long-term reliable oil lubrication, low manufacturing cost and simple structure

Active Publication Date: 2009-12-09
DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to working at high altitude, subject to many conditions, the bearings cannot receive daily oiling and maintenance.
Bearings are easily damaged when running without oil, so the safety reliability is poor and the service life is short
In addition, the installation and disassembly of rolling bearings are more troublesome, and the requirements for bearing housings are relatively high.

Method used

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  • Wind generating set main shaft self-aligning slide bearing
  • Wind generating set main shaft self-aligning slide bearing
  • Wind generating set main shaft self-aligning slide bearing

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Embodiment Construction

[0016] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings. Such as figure 1 , 2 . As shown in 3, a self-aligning sliding bearing for the main shaft of a wind power generating set, the overall structure of the bearing can be a split structure or an integral structure, depending on the bearing assembly form. An outer ring 1 and an inner ring 2 are provided. The inner diameter of the outer ring 1 is an inner spherical surface, and the outer diameter of the inner ring 2 is an outer spherical surface, forming a pair of sliding spherical surfaces and having the function of centering. Blind holes are evenly arranged on the outer diameter of the inner ring 2, and solid lubricants 3 are inlaid in the blind holes, and the outer spherical surface area of ​​the outer diameter of the inner ring (2) inlaid with the solid lubricant (3) occupies the entire outer spherical surface of the inner ring (2). 18-25% of ...

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Abstract

In the invention are disposed an outer ring and an inner race. The inside diameter of the outer ring is an internal spherical surface and the outside diameter of the inner race is an external spherical surface. On the outside diameter of the inner race are uniformly set blind holes with solid lubricant inside and is set a circular recess. A rolling body and a floating spacing pin are disposed between the circular recess and the outer ring. On the inside diameter surface of the inner race is covered a frictional layer made of self-lubricating composite material.

Description

Technical field: [0001] The invention relates to a self-aligning bearing, in particular to a self-aligning sliding bearing for the main shaft of a wind power generating set. Background technique: [0002] At present, domestic wind turbines are mostly in high-altitude working conditions in the wild, unattended. The main shaft bearing is the key part of the unit. It not only bears the weight of the rotating part, but also under the action of wind force and wind direction, the operation of the unit generates great vibration, so that the main shaft bearing also bears a large dynamic load and is in a continuous working state for a long time. Traditional spherical roller bearings are used in the main shaft bearings of wind power generating sets at home and abroad. This kind of bearing can work safely only under the condition of oil lubrication, so the maintenance requirements are strict. However, due to working at high altitude and being limited by many conditions, the bearings ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C23/04F16C33/10F16C33/20F16C33/74F03D11/00F03D80/70
CPCY02E10/722F16C23/045Y02E10/72
Inventor 孙承玉张晓英魏柏林苗立杰刘克学
Owner DALIAN SANHUAN COMPOSITE MATERIAL TECH DEV