Static pressure gas thrust bearing allowing throttling effect to be regulated and controlled

A thrust bearing and gas technology, applied in the field of static pressure gas thrust bearings, can solve the problems that the stiffness performance cannot be adjusted, the throttling performance cannot be changed, etc., and achieve the effect of ensuring the performance of the equipment

Pending Publication Date: 2020-02-28
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the throttling performance of the throttle of the static pressure gas thrust bearing cannot be changed during use: improving the bearing stiffness performance needs to

Method used

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  • Static pressure gas thrust bearing allowing throttling effect to be regulated and controlled
  • Static pressure gas thrust bearing allowing throttling effect to be regulated and controlled
  • Static pressure gas thrust bearing allowing throttling effect to be regulated and controlled

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as Figure 1 to Figure 5 As shown, a static pressure gas thrust bearing with adjustable throttling effect includes a bearing body, and a heating device is arranged in the bearing body, and the heating device is used to adjust the temperature of the gas flowing through the restrictor 1 .

[0042] In precision machine tools and precision measuring equipment, the sizes and weights of different processed or measured parts are different, or even quite different. In the prior art, the throttling performance of the static pressure gas thrust bearing restrictor 1 used in precision machine tools and precision measurement is determined, and the bearing stiffness performance cannot be adjusted, so in the specific use process, with the processing Carrying out or replacing the object, the processed or measured part may have the problem of floating or sinking in the space position compared with the previous processing or other parts. The above bearing stiffness performance canno...

Embodiment 2

[0047] Such as Figure 1 to Figure 5 As shown, this embodiment is further refined on the basis of embodiment 1:

[0048] Since the restrictor 1 itself has a multi-channel block structure, on the basis of a simple structure, in order to obtain a larger contact area between the heating device and the gas, at the same time make the restrictor 1 itself a heat source to avoid heat absorption due to the restrictor 1 The temperature adjustment response lags, resulting in too slow response speed of the gas temperature change, which affects the adjustment speed of the bearing stiffness performance, and at the same time makes the flow rate of the air flow ejected from each outlet of the restrictor 1 relatively stable, avoiding the reduction of the matching accuracy of the bearing mating surface 14, It is set that: the heating device is the restrictor 1 itself: the restrictor 1 is a conductor, and when the current flows through the restrictor 1, the restrictor 1 generates heat by itself,...

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Abstract

The invention discloses a static pressure gas thrust bearing allowing the throttling effect to be regulated and controlled. The static pressure gas thrust bearing comprises a bearing body. A heating device is arranged in the bearing body and is used for regulating temperature of gas flowing through a restrictor. By means of the structural design of the static pressure gas thrust bearing, the bearing throttling effect can be regulated and controlled.

Description

technical field [0001] The invention relates to the technical field of static pressure gas thrust bearings, in particular to a static pressure gas thrust bearing with adjustable throttling effect. Background technique [0002] Due to the advantages of high precision, hydrostatic gas thrust bearings are widely used in precision machine tools and precision measuring equipment. The stiffness characteristics of hydrostatic gas thrust bearings are the key to ensuring the high-precision performance of precision machine tools and precision measuring equipment. Therefore, improving the stiffness of aerostatic bearings is the key to improving the performance of precision machine tools and precision measuring equipment. Through the throttling effect of the restrictor, the static pressure gas thrust bearing makes the pressure in the air film gap change with the change of the air film gap, thereby generating stiffness. Generally, the better the throttling effect of the throttle, the g...

Claims

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Application Information

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IPC IPC(8): F16C32/06
CPCF16C32/0603
Inventor 郑越青崔海龙雷大江张新疆李星占魏巍冯艳冰陈刚利黄小津
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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