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Gas film pressure testing device and method for gas bearing

A gas bearing and pressure testing technology, which is applied in the direction of mechanical bearing testing, measuring devices, measuring fluid pressure, etc., can solve the problems of high consumption and low efficiency

Pending Publication Date: 2019-10-01
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

[0004] Aiming at the above-mentioned gas film detection in the field of gas bearing testing, it is a technical problem to be solved urgently by those skilled in the art to make further technical innovations in order to solve the existing problems of low efficiency and large consumption. Gas film pressure test device and test method for gas bearing

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  • Gas film pressure testing device and method for gas bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the gas film pressure test device for gas bearings includes a fixed tool for fixing the gas bearing, the fixed tool includes a base 2, a frame body 6 and a compression bolt 7, and the frame body 6 is fixed on the base 2 On, the frame body 6 includes a crossbar 11 located above the base 2;

[0034] The crossbar 11 and the base 2 form an installation station 8 for accommodating the gas bearing to be detected;

[0035] The compression bolt 7 is threadedly connected to the cross bar 11, and the compression bolt 7 can extend into the installation station 8;

[0036] The base 2 is also provided with a pressure introduction hole 10, and the inlet port of the pressure introduction hole 10 is located on the upper surface of the base 2;

[0037] It also includes a pressure measurement device 1 installed on the base 2, and the pressure measurement device 1 is used to measure the gas pressure value in the pressure introduction hole 10;

[0038] An adju...

Embodiment 2

[0042] The present embodiment is further limited on the basis of embodiment 1, as figure 1 As shown, as a specific implementation form of the frame body 6, it is set as follows: the frame body 6 is in the shape of a door frame: the frame body 6 includes a horizontal bar 11 in the middle and vertical bars at both ends, and the bottom of the vertical bar is connected to the base 2 fixed connection, the top of each vertical bar is fixedly connected with different ends of the cross bar 11 respectively. This solution is not only simple in structure, but also when the cross bar 11 is stressed, its two ends are restrained by different vertical bars, which is beneficial to the reliability of the compression bolt 7 to restrain the gas bearing.

[0043] In order to make the force received by the gas bearing from the compression bolt 7 always face the upper surface of the base 2, when the base 2 is placed so that the upper surface is a horizontal plane, the gas bearing will not be caused...

Embodiment 3

[0051] This embodiment is further limited on the basis of Embodiment 1 or Embodiment 2. This embodiment discloses a gas film pressure test method for gas bearings. This solution also discloses a gas film pressure test method for gas bearings. The test method is to use the test device provided by any one of the above to complete the test of the air film pressure of the gas bearing, including the following steps in sequence:

[0052] S1. Complete the installation of the gas bearing on the installation station 8: use the adjustment device 3 to obtain the air film gap 9 between the upper surface of the base 2 and the lower surface of the gas bearing, and the inlet port of the pressure introduction hole 10 is located in the air film gap 9 Inside, and the position of the inlet orifice in the gas film gap 9 is the pressure taking position in the required gas film area, the upper end of the gas bearing is constrained by the compression bolt 7, and the gas bearing is installed in the in...

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Abstract

The invention discloses a gas film pressure testing device and method for a gas bearing. The testing device comprises a fixing tool; the fixing tool comprises a base, a frame body and a pressing bolt;the frame body is fixed on the base; the frame body comprises a cross rod; the cross rod and the base define a mounting station which is used for containing the to-be-detected gas bearing; the pressing bolt is in threaded connection with the cross rod; a pressure leading hole is further formed in the base; an inlet end hole opening of the pressure leading hole is located on the upper surface of the base; and the testing device further comprises a pressure measuring device and an adjusting device used for adjusting the width of a gas film gap between the gas bearing and the base. The testing device provided by the scheme can be used for testing gas film pressures of different gas bearings and gas film pressures in different positions of a gas film area relative to a throttling hole; and the testing method is a use method of the testing device.

Description

technical field [0001] The invention relates to the technical field of gas bearing testing, in particular to a gas film pressure testing device and testing method for gas bearings. Background technique [0002] With the further widespread application of gas bearings in today's precision and ultra-precision machining fields, the testing of gas film stiffness, strength, pressure and other parameters of gas bearings is increasing. At present, for the air film pressure test, it is generally used to test on the formed assembly after producing and assembling the bearing with the corresponding air film thickness. For each test, due to the specific air film thickness and Therefore, such a testing process not only consumes a lot of manpower and financial resources, but also has a very low efficiency problem. [0003] Therefore, as a person skilled in the art, it is a technical problem to be solved urgently by those skilled in the art to make further technical innovations in the gas ...

Claims

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Application Information

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IPC IPC(8): G01M13/04G01L19/00
CPCG01M13/04G01L19/00
Inventor 杨光伟郑越青阳红刘有海张敏戴晓静孙守利尹承真
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS