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Variable camber sliding bearing containing three oil wedges

A technology of sliding bearings and variable curvature, which is applied in the direction of sliding contact bearings, rotating bearings, bearings, etc., can solve the problems of limiting the scope of application, increasing investment, etc., achieve good automatic neutralization, reduce friction and wear, maintenance and replacement easy effect

Inactive Publication Date: 2005-06-15
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it needs to add a special lubrication system and auxiliary equipment, thus increasing the investment, and the design must meet strict conditions to achieve the purpose, thus limiting its scope of application

Method used

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  • Variable camber sliding bearing containing three oil wedges
  • Variable camber sliding bearing containing three oil wedges
  • Variable camber sliding bearing containing three oil wedges

Examples

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Embodiment Construction

[0021] Figure 3 and Figure 4 show the structure and its specific examples when the rotating shaft needs to be forward and reverse. In Figure 3, φ 0 is the diameter of the shaft, φ 1 is the outer diameter of the bearing pad, φ 2 is the inner diameter of the bushing, R is the radius of curvature of the inner surface of the bearing bush, and the arrow of n indicates the direction of rotation of the shaft. Divide the bearing bush into three parts at 120°, and each part is 10° as a section. The radius of curvature R of the inner surface of the bearing bush is within the range of the first 60°. , each segment changes from the smallest to the largest in turn, and the gap between the shaft and the bearing bush also changes accordingly. The R value shown in Figure 3 and Figure 4 is the change of the first 60°, R 7 is the pad radius at maximum clearance, R 1 is the bearing pad radius at minimum clearance, from R 7 to R 1 , the R value gradually decreases, and the gap gradually dec...

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Abstract

The invention relates to a three oil wedge variable curvature sliding bearing. It is formed from axle sleeve and axle bush, in the axle bush the rotating axle is placed, between axle and axle sleeve and axle bush the gaps are set for storing lubricating oil. It is mainly characterized by that the curvature radius of said axle bush is varied according to a certain regularity, and in the work it can effectively form three oil wedges so as to implement hydrodynamic lubrication of bearing, and has good automatic centring property.

Description

Technical field: [0001] The present invention relates to plain bearings used in rotating machines. Background technique: [0002] The working pressure of the rotating shaft working in a variable load environment fluctuates constantly. How to ensure the formation of a dynamic lubricating oil film on the working surface of the bearing to reduce the friction and wear of the mating surface, prolong the life of the bearing, and then improve the service life of the entire machine is a very important Problem; especially for vertically installed mechanical equipment such as oil drill bits, blowout preventers while drilling, and turntables, there is no condition for the formation of an oil film due to the weight of a horizontally installed sliding bearing during work. How to ensure the formation of a dynamic pressure oil film on the friction surface to achieve Automatic centering of bearings, reducing the friction and wear of the working surface, and improving the life of the bearing...

Claims

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Application Information

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IPC IPC(8): F16C17/00F16C33/10
Inventor 杨启明刘清友王国荣何霞周岩
Owner SOUTHWEST PETROLEUM UNIV
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