Concentric micro centering slide bearing formed by physical absorption

A sliding bearing and physical adsorption technology, applied in the direction of sliding contact bearing, rotating bearing, bearing, etc., can solve the problem that the radial sliding bearing does not have the bearing capacity, the concentricity of the bearing shaft and the hole is reduced, and the thickness of the bearing lubricating oil film is low. and other problems, to achieve the effect of remarkable technical effect, high concentricity and high bearing support accuracy

Active Publication Date: 2015-08-26
怀宁吉利来精密机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the traditional fluid lubrication theory, Figure 1~Figure 3 If the radial sliding bearing shown has load capacity, there must be an offset e between the shaft center and the hole center in the bearing, such as Figure 1~Figure 3 As shown, the existence of the offset e reduces the concentricity of the shaft and the hole in the bearing, and reduces the bearing support accuracy, and the greater the bearing load or the lower the rotation speed, the grea

Method used

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  • Concentric micro centering slide bearing formed by physical absorption
  • Concentric micro centering slide bearing formed by physical absorption
  • Concentric micro centering slide bearing formed by physical absorption

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Embodiment

[0039] The embodiment is a concentric miniature radial sliding bearing formed by physical adsorption, formed by a rotating shaft 1 and a stationary bearing hole 5 , or formed by a rotating bearing hole 5 and a stationary shaft 1 . In the present invention, the shaft 1 and the bearing hole 5 are concentric, and there is a gap of nanometer level between the shaft 1 and the bearing hole 5, and the gap is filled with fluid. Figure 4 The bearing of the present invention is illustrated.

[0040] The bearing lubricating area of ​​the present invention is divided into two sub-areas, that is, "I" sub-area and "II" sub-area, and the central angles of these two sub-areas are respectively and . In the bearing of the present invention, by coating specific coatings on the static contact surfaces of the "I" sub-zone and the "II" sub-zone respectively, the interaction strength between the fluid and the static contact surface in the "I" sub-zone is greater than that in "II" The interac...

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Abstract

The invention provides a concentric micro centering slide bearing formed by physical absorption. The bearing comprises a shaft and a bearing hole concentrically arranged, wherein a nanometer-magnitude gap is formed between the shaft and the bearing hole; a fluid is fully filled in the gap to form a lubrication area; the lubrication area is divided into two areas of a subarea I and a subarea II; and coating layers are respectively coated on static contact surfaces of the subarea I and the subarea II, so that the interaction strength of the fluid in the subarea I and the static contact surface is greater than the interaction strength of the fluid in the subarea II and the static contact surface. The bearing has the advantages of a certain bearing capacity, low frictional coefficient, excellent wear resistance, high support precision, simple realization, low cost and important practical value.

Description

technical field [0001] The invention relates to a concentric miniature centripetal sliding bearing formed by physical adsorption. Background technique [0002] Bearings are important mechanical components used to support shaft parts, and are divided into sliding bearings and rolling bearings. There are the following main performance requirements for bearings: support accuracy, support rigidity, low friction coefficient and wear resistance. This requires the bearing to be a very precise mechanical part, and also requires it to have a large enough load-carrying capacity. In order to achieve good anti-friction and wear resistance, the bearing also needs to have good lubrication performance. So far, although the bearing technology is relatively mature, it is all based on the traditional lubrication theory. At present, rolling bearings and sliding bearings are used in different occasions and each has its own advantages. Since the present invention relates to sliding bearings,...

Claims

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Application Information

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IPC IPC(8): F16C35/02F16C17/02F16C33/10
Inventor 张永斌袁虹娣
Owner 怀宁吉利来精密机械科技有限公司
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