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Bearing component of molecular pump

A technology of bearing components and molecular pumps, which is applied to pump components, pumps, components of pumping devices for elastic fluids, etc., can solve problems such as large frictional heat, reduce friction, facilitate circulation and heat dissipation, reduce Effect of Axial Vibration

Active Publication Date: 2009-12-23
KYKY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention lies in the problem that a large amount of frictional heat is generated between the bearing and the contact end surface of the bearing seat during the operation of the molecular pump bearing assembly in the prior art. friction between molecular pump bearing assemblies

Method used

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  • Bearing component of molecular pump
  • Bearing component of molecular pump
  • Bearing component of molecular pump

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] like Figure 1-3 As shown, the molecular pump bearing assembly of Embodiment 1 includes a bearing seat 1 having an axial positioning end face 11 and a bearing seat 1 that is used in cooperation with the bearing seat 1 and whose end face presses against the axial positioning end face 11 of the bearing seat 1. The bearing 2 is provided with several balls 3 between the bearing 2 and the axial positioning end surface 11 of the bearing housing 1 . The setting of the ball 3 can reduce the contact area between the bearing 2 and the end surface of the bearing seat 1, and the original annular contact surface becomes a point contact, which reduces friction and heat generation of the bearing 2, effectively protects the bearing 2 and can Extend the service life of the molecular pump. Moreover, since the contact surface between the bearing 2 and the end surface of the bearing seat 1 is reduced, the chance of grinding the lubricating oil on the contact surface is reduced, and the me...

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Abstract

The invention relates to a bearing component of a molecular pump, comprising a bearing seat (1) with an axial positioning end surface (11) and a bearing (2); the bearing (2) is matched with the bearing seat (1) for use and the end surface thereof leans against the axial positioning end surface (11) of the bearing seat (1) in a pressing manner; and a plurality of balls are arranged between the bearing (2) and the axial positioning end surface (11) of the bearing seat (1). The bearing component of the molecular pump can reduce the friction between the contact end surfaces of the bearing of the molecular pump and the bearing seat, and reduce the generation of friction heat at the bearing, thus prolonging the service life of the bearing.

Description

technical field [0001] The invention relates to a molecular pump bearing assembly, in particular to a molecular pump bearing assembly capable of reducing frictional heat between a bearing and a bearing seat. Background technique [0002] In the prior art, the molecular pump bearing assembly includes a bearing and a bearing seat, wherein one end surface of the bearing is directly installed against the axial positioning end surface of the bearing seat. When the bearing rotates at high speed, there is a large friction between the end faces of the bearing and the bearing seat, especially for large turbomolecular pumps rotating at high speed, due to the large mass of the rotor, the axial pressure generated by the rotor on the bearing seat is also large. Therefore, there will be greater friction between the contacting end faces of the bearing and the bearing seat, and the resulting large amount of frictional heat will reduce the service life of the bearing, thereby reducing the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/059F04D19/04
Inventor 邹蒙许惠妍徐天伟
Owner KYKY TECH
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