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Testing system and testing method for high speed performance of aerostatic thrust bearings

An aerostatic pressure and thrust bearing technology, applied in the direction of mechanical bearing testing, etc., can solve problems such as loading and measuring device damage, reduce wear and heat, and overcome severe wear

Active Publication Date: 2018-07-31
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Aerostatic bearings cannot use contact loading and measuring methods under high-speed operating conditions, because high-speed rotating conditions will cause damage to the loading and measuring devices

Method used

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  • Testing system and testing method for high speed performance of aerostatic thrust bearings
  • Testing system and testing method for high speed performance of aerostatic thrust bearings
  • Testing system and testing method for high speed performance of aerostatic thrust bearings

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Embodiment Construction

[0033] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0034] see Figure 1 to Figure 5 , this embodiment discloses a high-speed performance test system for aerostatic thrust bearings, the test system includes an annular shell 7, the annular shell 7 is clamped and fixed by a base 8, and the base 8 distributes upper clamping parts and lower clamps The tightening part is used to clamp and fix the annular shell 7 by combining the upper clamping part and the lower clamping part. The inner cavity of the annular casing 7 is provided with a shaft core 17, and the shaft core 17 is provided with a hollow hole 172. The left and right ends of the shaft core 17 extend outside the...

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Abstract

The invention discloses a testing system and a testing method for high speed performance of aerostatic thrust bearings. The testing system comprises an annular casing, wherein a central spindle is arranged in an inner cavity of the annular casing; two aerostatic radial bearings are arranged in the middle of the central spindle; a rotary disk is arranged on a right extending section of the centralspindle; the two aerostatic thrust bearings are arranged on each of the left side and the right side of the rotary disk; a gas supply pipeline simultaneously supplies gas to the two aerostatic radialbearings and the two aerostatic thrust bearings, so that the central spindle is suspended; a turbine is fixed on a left extending section of the central spindle; a left cover plate covers the turbine;second gas supply holes introduce gas into the left cover plate to drive the turbine to rotate; the left side of the turbine is locked by a locking nut; a loading hole introduces the gas into a loading cover to apply axial pressure to the left end face of the central spindle; the testing system further comprises a detection part and a gas supply part. The testing system and the testing method disclosed by the invention have the advantage that various performance parameters of the aerostatic thrust bearings can be tested at different rotating speeds and gas supply pressures.

Description

technical field [0001] The invention relates to the technical field of air bearing performance testing, in particular to a high-speed performance testing system and testing method of an aerostatic thrust bearing. Background technique [0002] Air static pressure bearing is a mechanical component that uses air film to support load or reduce friction. It has the advantages of high speed, high precision, low friction, high and low temperature resistance and radiation, clean and environmental protection, long life and simple structure. It is mainly used in ultra-high speed, In technical fields such as ultra-precision and low-friction and low-power bearings, the speed can reach hundreds of thousands of revolutions per minute. The traditional aerostatic bearing performance test is to inject high-pressure gas into the bearing under static conditions to suspend it for performance testing. This method can only test the performance of aerostatic bearings under static conditions. Due ...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 高思煜施云高徐林森陈红张孝俣夏明朱佰新
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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