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Method for analyzing measurement uncertainty of double-shaft arc-shaped large-size involute sample plate

A technology of measurement uncertainty and analysis method, which is applied in the field of measurement uncertainty analysis of biaxial arc-type large-size involute sample, which can solve processing difficulties, large gear involute sample size, complex shape, etc. question

Active Publication Date: 2020-12-04
BEIJING UNIV OF TECH
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Problems solved by technology

The large gear involute sample is large in size and complex in shape, which is not only difficult to process, but also lacks high-precision instruments for testing large-scale samples

Method used

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  • Method for analyzing measurement uncertainty of double-shaft arc-shaped large-size involute sample plate
  • Method for analyzing measurement uncertainty of double-shaft arc-shaped large-size involute sample plate
  • Method for analyzing measurement uncertainty of double-shaft arc-shaped large-size involute sample plate

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Embodiment Construction

[0140] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0141] The research on the measurement uncertainty analysis method of biaxial arc-shaped large-size involute sample is now realized by combining the specific basic parameters of bi-axial arc-shaped large-size involute sample and the basic settings of ANSYS analysis.

[0142] The overall structure of the biaxial arc involute model is as follows: Figure 5 , the basic design parameters are modulus m=21.28mm, number of teeth z=40, r p = 1.5mm, r c = 105.102 mm, C = 401.583 mm.

[0143] The basic setting of ANSYS analysis is that the gravity load of the sample is 356.062N, the mass of the sample is 36.308kg, and the coordinates of the center of mass are (167533.3μm, 445356.2μm, 82779.9μm). In the process of meshing, fine and smooth conditions are used to make it closer to the ...

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Abstract

The invention discloses a method for analyzing measurement uncertainty of a double-shaft arc large-size involute template. According to the method, uncertainty components, including the coaxiality ofupper and lower tip holes of a central shaft, the coaxiality of the circle center axis of the central hole of a reference block and the circle center axis of a detection arc, the gravity load of a sample plate, the environment temperature change, the parallelism of a centering shaft and a measurement central shaft, the coaxiality of a stepped shaft of the central shaft, the perpendicularity of thestepped shaft of the central shaft, the cylindricity of the centering shaft the cylindricity of the central shaft, the effective length of a frame, the radius of a probe and the template rotation angle, which greatly influence thedouble-shaft arc large-size involute template are analyzed. ANSYS software is used for solving part of uncertainty components, and then the credibility of measurement uncertainty analysis results is improved when a gear measuring instrument is calibrated through the double-shaft type arc-shaped large-size involute sample plate. According to the distribution of the error uncertainty components, a synthesis error of each uncertainty component of the sample plate is calculated, and the precision grade of the sample plate is judged.

Description

technical field [0001] The invention relates to a method for analyzing the measurement uncertainty of a biaxial arc-type large-size involute sample, in particular using ANSYS software to solve part of the uncertainty components, thereby improving the accuracy of the bi-axial arc-type large-size involute The reliability of the line template uncertainty analysis results. It belongs to the field of uncertainty analysis of large gear templates. Background technique [0002] As a representative of my country's basic components, gears are the basic industry of my country's equipment manufacturing industry and an important foundation for various fields of national economic construction. It has the characteristics of compact structure, accurate transmission ratio, and high transmission efficiency. As a basic component in the overall mechanical structure, its quality and performance determine the performance and reliability of the overall machine. Therefore, the importance of gears...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/20
CPCG01B21/20G01B21/042
Inventor 陈洪芳梁超伟李宝山石照耀
Owner BEIJING UNIV OF TECH