Mechanical sealing end surface deformation measurement system based on binocular vision DIC and measurement method thereof

A mechanical seal, binocular vision technology, applied in the direction of measuring devices, using stable tension/pressure testing material strength, instruments, etc., to achieve the effect of improving performance and service life, reducing energy

Inactive Publication Date: 2015-05-20
NANJING COLLEGE OF CHEM TECH
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a kind of mechanical seal end face deformation measurement system and measurement me

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  • Mechanical sealing end surface deformation measurement system based on binocular vision DIC and measurement method thereof
  • Mechanical sealing end surface deformation measurement system based on binocular vision DIC and measurement method thereof
  • Mechanical sealing end surface deformation measurement system based on binocular vision DIC and measurement method thereof

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Embodiment approach

[0040] The measuring system structure of the present invention is as figure 1 As shown, the whole system consists of left high-speed digital camera 9, right high-speed digital camera 13, left lens 10, right lens 12, acquisition card 18,19, light source 16, calibration plate 20, support system (square box 11,14, translation stage 15), composed of computer 17 and mechanical seal test device.

[0041]Its position connection sequence is: the left and right high-speed digital cameras 9,13 are respectively installed in square boxes 11,14 with screws, and there are bolt holes directly below the square boxes 11,14, and the square boxes 11,14 are fixed to the translation platform by bolts 15, the translation platform 15 is installed on the guide rail on the tripod; adjust the angle and distance between the left and right high-speed digital cameras 9 and 13 by adjusting the bolts below the square boxes 11 and 14; Adjust the height and pitch angle of left and right high-speed digital ca...

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Abstract

The invention discloses a mechanical sealing end surface deformation measurement system based on binocular vision DIC and a measurement method thereof. The system comprises a mechanical sealing test device, high-speed digital cameras, lenses, acquisition cards, a light source, a calibration plate, a support system, and a server for digital image acquisition and correlation analysis and processing. The measurement method altogether comprises eight steps. A speckle image on the surface of a mechanical sealing static ring in an operation condition can be acquired, the image can be analyzed and processed by directly using the binocular vision digital image correlation method, and thus, a three-dimensional shape on the surface of the mechanical sealing static ring, and a three-dimensional deformation field under effects of force and thermal load can be acquired. According to the method, the use is convenient, the measurement precision is high, the full-filed measurement problem of surface deformation under effects of force and thermal load of mechanical sealing can be effectively solve4d, and foundation is laid for making a research on key factors influencing mechanical sealing deformation and exploring measures for reducing deformation.

Description

technical field [0001] The invention relates to a measurement system and a measurement method for the three-dimensional shape of the end face of a mechanical seal and the three-dimensional deformation of the whole field under the action of force and thermal load, belonging to the fields of optical measurement mechanics, mechanical seal displacement and deformation testing technology, and the like. Background technique [0002] Mechanical seals are widely used in machinery, petroleum, chemical industry, and electric power due to their advantages such as good sealing performance, long service life, no adjustment during operation, small power loss, no wear on the surface of the shaft or sleeve, strong vibration resistance, and high sealing parameters. Sealing of rotating shafts in industrial equipment such as light industry, ships, aerospace and atomic energy. [0003] Mechanical seals are generally composed of sealing pairs (moving ring 4 and static ring 5), elastic elements (...

Claims

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Application Information

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IPC IPC(8): G01B11/16G01B11/24G01N3/08
Inventor 冯秀陆锋沈国良
Owner NANJING COLLEGE OF CHEM TECH
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