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Semi-spherical dynamic pressure motor bearing gap measuring device and method

A dynamic pressure motor and bearing clearance technology, which is applied in the field of hemispherical dynamic pressure motor bearing clearance measuring devices, can solve the problems that the detection accuracy cannot meet the requirements of use, lack of measurement methods, and affect production efficiency, and achieves simple structure and high detection accuracy. , the effect of easy assembly

Active Publication Date: 2015-12-30
BEIJING INST OF AEROSPACE CONTROL DEVICES
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AI Technical Summary

Problems solved by technology

The axial clearance and radial clearance of the bearing of the hemispherical dynamic pressure motor are required to be 2 to 4 μm. At present, in the production process of the motor, there is no effective measurement method. We can only rely on a high-precision three-coordinate tester to test the hemisphere and the ball bowl of the bearing pair respectively. Detection, the measurement error is large, and the detection accuracy cannot meet the requirements of use; and the measurement cycle is long, requiring professional inspection personnel to operate, the detection efficiency is low, and the production efficiency is seriously affected

Method used

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  • Semi-spherical dynamic pressure motor bearing gap measuring device and method
  • Semi-spherical dynamic pressure motor bearing gap measuring device and method
  • Semi-spherical dynamic pressure motor bearing gap measuring device and method

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Embodiment

[0043] Such as figure 1 As shown, the hemispherical dynamic pressure motor bearing gap measurement device includes an inductance micrometer, a marble plate, an axial gap measurement tool, a radial gap measurement tool, a probe connection line, a pulley cable, a fixed pulley, a fixed pulley bracket, Inductance micrometer probe bracket and weight; inductance micrometer with inductance micrometer probe;

[0044] Axial gap measuring tooling includes the first V-shaped iron (such as figure 2 shown), the second V-shaped iron and two bolts, the axial clearance measuring tool is used to fix the outer circle of the rotor of the hemispherical dynamic pressure motor, the first V-shaped iron is an iron block with a V-shaped groove in the middle part of the right surface , the second V-shaped iron is an iron block with a V-shaped groove in the middle part of the left surface;

[0045] The large end of the V-shaped opening of the first V-shaped iron is opposite to the large end of the V-...

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Abstract

The invention relates to the technical field of aerospace inertial component precision detection, in particular to a semi-spherical dynamic pressure motor bearing gap measuring device and method. The device comprises an inductance amesdial, a marble flat plate, an inductance amesdial measuring head, a special axial gap measuring tool, a special radial gap measuring tool, a measuring head connection line, a pulley line rope, a fixed pulley, a fixed pulley support, an inductance amesdial measuring head support and weights. The method is short in detection time, high in detection precision, high in practicality and capable of being widely used in scientific research and production.

Description

technical field [0001] The invention relates to the technical field of precise detection of aerospace inertial devices, in particular to a device and method for measuring a bearing gap of a hemispherical dynamic pressure motor. Background technique [0002] The hemispherical dynamic pressure motor is an ideal dynamic pressure air bearing motor, and its bearing capacity depends on the bearing working clearance. The axial clearance and radial clearance of the bearing of the hemispherical dynamic pressure motor are required to be 2 to 4 μm. At present, in the production process of the motor, there is no effective measurement method. We can only rely on a high-precision three-coordinate tester to test the hemisphere and the ball bowl of the bearing pair respectively. Detection, the measurement error is large, and the detection accuracy cannot meet the requirements of use; and the measurement cycle is long, requiring professional inspection personnel to operate, the detection eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/14
Inventor 黄德董君华崔砚苏义兵谢应隆常静缓石宁霞李广平
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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