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Tooth profile deviation measurement method based on DP-PSO-SVR

A DP-PSO-SVR, deviation measurement technology, applied in the direction of measurement devices, CAD numerical modeling, instruments, etc., can solve the problems of high measurement cost, low precision, short service life, etc.

Active Publication Date: 2020-08-14
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Application Information

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Problems solved by technology

[0007] Aiming at the problems of high measurement cost, low precision and short service life in the prior art, the present invention provides a tooth profile deviation measurement method based on DP-PSO-SVR, which can reduce measurement cost and improve measurement accuracy, Also has good anti-interference

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  • Tooth profile deviation measurement method based on DP-PSO-SVR
  • Tooth profile deviation measurement method based on DP-PSO-SVR
  • Tooth profile deviation measurement method based on DP-PSO-SVR

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Embodiment Construction

[0077] According to the single involute cylindrical gear tooth surface accuracy standard on the same side specified in the national standard, the tooth profile deviation refers to the amount by which the actual tooth profile deviates from the designed tooth profile, and the tooth profile deviation will directly affect the accuracy of the tooth surface, while the tooth surface deviation The precision will directly affect the transmission precision and smoothness of the gear pair, so the tooth profile deviation is an important factor affecting the transmission function of the involute cylindrical gear. The tooth profile deviation is the value in the direction of the end plane and perpendicular to the actual involute. The total deviation of the tooth profile refers to the value in the value range L a The distance between two theoretical tooth profiles containing the actual tooth profile, such as figure 1 Shown, L 1 , L 2 are two theoretical involutes, L is the actual involute, ...

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Abstract

The invention discloses a tooth profile deviation measurement method based on DP-PSO-SVR, and belongs to the technical field of precision testing. The invention helps resolve problems of high measurement cost, low precision and short service life. The method comprises the following steps: measuring tooth profile data of a to-be-measured gear as to-be-measured data, measuring tooth profile data ofa test gear as sample data, and carrying out coordinate transformation processing on theoretical tooth profile data of the to-be-measured gear; establishing a tooth profile deviation mathematical model; establishing an SVR model; optimizing and training parameters in the SVR model by using a DP-PSO algorithm and the sample data to obtain a DP-PSO-SVR model; fitting the to-be-measured data by usingthe DP-PSO-SVR model to obtain an actual involute of the to-be-measured gear, fitting theoretical tooth profile data by using a least square method to obtain a theoretical involute, and calculating to obtain a tooth profile deviation between the actual involute and the theoretical involute through the tooth profile deviation mathematical model. According to the invention, the measurement cost canbe reduced, the measurement precision can be improved, and the anti-interference performance is good.

Description

technical field [0001] The invention relates to the technical field of precision testing, and more specifically, relates to a tooth profile deviation measurement method based on DP-PSO-SVR. Background technique [0002] Gears are usually divided into vehicle gears and industrial gears. Usually, gears with a diameter greater than 500mm are called large gears. Large gears are key components of large equipment and are widely used in important fields such as power generation, building materials, ships, and mining machinery to improve gear accuracy. It has become an important means to ensure the working accuracy and service life of mechanical products. [0003] In terms of gear measurement and error evaluation, scholars at home and abroad have carried out relevant research. Liu Yongping aimed at the problem that the geometric shape of non-circular gears is complex and the measurement of processing errors is difficult. The method of measuring the processing errors of the non-circ...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06F30/25G01B21/20G06F111/10
CPCG06F30/27G06F30/25G01B21/20G06F2111/10Y02T90/00
Inventor 冯旭刚章家岩方修之
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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