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Dynamic pressure air bearing test platform

A technology of air bearing and test platform, used in mechanical bearing testing, measuring device, electromagnetic measuring device, etc.

Pending Publication Date: 2022-05-10
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a lack of a test platform that can test various types of air bearings

Method used

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Embodiment

[0036] see figure 1 , a dynamic pressure air bearing test platform, including a platform body 12, an X-axis fine-tuning mobile platform 3, a Z-axis fine-tuning lifting platform 9, a thrust plate 4, a data display instrument 13 and a bearing fixing seat 5. The platform body 12 is a high-precision optical flat plate.

[0037] The X-axis fine-tuning mobile platform 3 and the Z-axis fine-tuning lifting platform 9 are respectively fixed on the left and right sides of the platform body 12 . A high-speed motor 1 with adjustable speed and a non-contact measuring eddy current sensor 11 are fixed on the X-axis precision fine-tuning mobile platform 3; the power output shaft of the high-speed motor 1 is connected with the thrust disc 4; the non-contact measuring eddy current sensor 11 is fixed on the X through a fixed block. The X-axis precision fine-tuning mobile platform 3 is used to measure the thickness of the air film. Before the test, adjust the X-axis precision fine-tuning mobile ...

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Abstract

The invention belongs to the technical field of dynamic pressure air bearings, and relates to a dynamic pressure air bearing test platform, which comprises a platform body, an X-axis precision fine tuning moving platform and a Z-axis precision fine tuning lifting platform are respectively fixed on the platform body, and a high-speed motor is fixed on the X-axis precision fine tuning moving platform; a power output shaft of the high-speed motor is connected with the thrust disc; the pressure force measuring sensor and the torque measuring instrument are respectively used for measuring the force and the torque on the axial force output rod and the torque output rod; the bearing fixing seat and the thrust disc are oppositely arranged, and the bearing fixing seat is used for fixing a to-be-tested dynamic pressure air bearing; the X-axis precision fine-tuning moving platform drives the high-speed motor and the thrust disc to translate in the horizontal direction, and the Z-axis precision fine-tuning lifting platform drives the linear bearing box and the bearing fixing seat to translate in the vertical direction. According to the test platform, air bearings of different models can be replaced, the working rotating speed of the bearings and the thickness of an air film are controlled in real time, and the load conditions in different working states are recorded.

Description

technical field [0001] The invention belongs to the technical field of dynamic pressure air bearings, and relates to a dynamic pressure air bearing test platform. Background technique [0002] Air lubrication technology broke the dominance of liquid lubrication in the mechanical field at that time, making the field of lubrication technology develop rapidly. Now it is widely used in aerospace, automobile, ship and many other fields. According to the different ways of forming the air film, it can be divided into two categories: hydrostatic bearings and dynamic pressure bearings. Since hydrostatic bearings require an independent air supply system, their complexity limits the application scenarios to a certain extent. The dynamic pressure bearing generates air film pressure and provides bearing capacity through the compression effect of the wedge-shaped air film under the high-speed rotation of the rotor, so it is more widely used. Nowadays, under the general trend of new ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04G01B7/06G01D21/02
CPCG01M13/04G01B7/10G01D21/02
Inventor 沈军张嘉豪余得贵谢顺德魏宇
Owner SHENZHEN UNIV
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