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Method for manufacturing integral antimagnetic bearing with preload

A technology for antimagnetic bearings and manufacturing methods, applied to the rigid support of bearing components, bearings, bearing components, etc., can solve the problems of low precision, troublesome assembly and disassembly, poor antimagnetic performance, etc.

Active Publication Date: 2011-04-13
上海天虹微型轴承有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] like image 3 As shown, the preload of the bearing used on the existing high-precision spacecraft seeker is realized by changing the thickness of the gasket 40 between the outer rings 21 of the thin-walled bearing 20, which is troublesome for assembly and disassembly. And the precision is not high, can't meet the requirement of high precision; At the same time, the thin-walled bearing 20 is made of 9Cr18, and the antimagnetic performance is poor

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  • Method for manufacturing integral antimagnetic bearing with preload
  • Method for manufacturing integral antimagnetic bearing with preload
  • Method for manufacturing integral antimagnetic bearing with preload

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Embodiment Construction

[0033] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0034] The manufacture method of the integral band preload antimagnetic bearing of the present invention, it comprises the steps:

[0035] (1) Make a pair of bearing inner rings 200, and open a first raceway 220 on the outer wall 210 of the bearing inner ring 200;

[0036] (2) Make the bearing housing 100, set up a pair of second raceways 120 on the inner wall 110 of the bearing housing 100, the second raceways 120 and the first raceways 220 correspond to each other;

[0037] (3) Assembling the bearing inner ring 200 of the non-reference end surface 140 of the lower part of the bearing seat 100;

[0038] (4) Assemble the bearing inner ring 200 of the upper reference end surface 130 of the bearing housing 100;

[0039] (5) Fix the bearing inner...

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Abstract

The invention discloses a method for manufacturing an integral antimagnetic bearing with a preload. An outer bearing ring is connected with a bearing block into a whole, so that the strength of the bearing is improved, the assembly link is reduced, and the whole machining accuracy and the assembling accuracy of the bearing are improved; inner bearing rings, a rolling ball and a retainer are made of nonmagnetic materials, and the aim of resisting magnetism and not needing to regulate the preload is fulfilled. During actual use, a speed-stabilizing current value of a driving motor is low, so that the high-accuracy using requirement of a user is met; and the dimension between two inner bearing rings is calculated in advance, so that an accurate preload is automatically generated after the inner bearing rings are assembled, and the aim is fulfilled by arranging the bearing on a rotor shaft of the driving motor only.

Description

technical field [0001] The invention relates to a manufacturing method of an integral high-precision bearing assembly, in particular to a manufacturing method of an integral antimagnetic bearing with preload used under special working conditions. Background technique [0002] The bearings used on the seeker of high-precision spacecraft have particularly high requirements on the antimagnetic requirements of the bearings and the preload requirements of the bearing pairing. Since the bearings used on the seeker of high-precision spacecraft need to work under the condition of strong magnetic field, the magnetic field has a great influence on the operation of the bearing, which will increase the rotational resistance of the bearing, increase the current of the driving motor, and shorten the inertia time; in addition, the matching Whether the bearing preload is correct or not also directly affects the flexibility, stability and reliability of the bearing, thus directly affecting t...

Claims

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Application Information

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IPC IPC(8): F16C35/067F16C43/04F16C33/62F16C33/32F16C33/44
CPCF16C19/184F16C2229/00
Inventor 范为民董维凯张光宙
Owner 上海天虹微型轴承有限公司
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