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Dynamic transmission error prediction method based on gear integrated error

A technology of transmission error and overall error, which is applied in machine gear/transmission mechanism testing, mechanical component testing, machine/structural component testing, etc. It can solve problems such as measurement environment interference and complex structure of dynamic transmission error measurement equipment.

Active Publication Date: 2017-06-13
BEIJING UNIV OF TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problem that the static transmission error does not consider the influence of the interaction coupling between the error and the working condition, and the dynamic transmission error measurement equipment has a complex structure and is easily disturbed by the measurement environment, the present invention provides a dynamic transmission error prediction based on the overall error of the gear method, the dynamic transmission error of the gear can be obtained more accurately

Method used

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  • Dynamic transmission error prediction method based on gear integrated error
  • Dynamic transmission error prediction method based on gear integrated error
  • Dynamic transmission error prediction method based on gear integrated error

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Embodiment Construction

[0044] 1) Construct a coordinate system; construct such as figure 1 In the gear contact coordinate system shown, B represents the tooth width, B / 2 represents the half tooth width; L represents the length of the actual contact line of a pair of teeth, L / 2 represents the general length of the connection, and also represents the width of the contact area; Δ represents The normal tooth pitch of the gear along the meshing direction; β indicates the helix angle; α indicates the pressure angle; o 1 ,o 2 represent the centers of gear 1 and gear 2 respectively; r b Indicates the radius of the base circle; r indicates the radius of the pitch circle; i indicates the serial number of the contact gear pair, i (i=1,2,...,n, is a positive integer); the value of the coordinate x indicates the position of the centerline of the contact area relative to i (i=1,2,...,n, positive integer) is the position of the middle plane of the contact line of the tooth, which is one of the base circles with...

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Abstract

The invention discloses a dynamic transmission error prediction method based on a gear integrated error and belongs to the technical fields of gear transmission precision measurement, precision tests and instrument and mechanical transmission. On the basis of obtaining integrated error data of a gear by an integrated error measurement technology, interaction coupling of errors and working conditions is taken into consideration, and a non-linear dynamics prediction model of gear dynamic transmission prediction is constructed. Firstly, a coordinate system is established according to a gear meshing transmission principle, gear integrated error measurement data is used for obtaining gear static transmission errors. Then, dynamic displacement of the prediction model is acquired by the usage of a numerical solution method. Finally, an interaction principle of gear errors is used for compounding gear dynamic transmission errors. The dynamic transmission error prediction method based on the gear integrated error can not only meet the requirements of a complicated environment, but also meet the requirements for consideration of the interaction coupling between the errors and the working conditions.

Description

technical field [0001] The invention relates to a dynamic transmission error prediction method based on the overall error of gears, and belongs to the technical fields of gear transmission precision measurement technology, precision testing technology, instruments and mechanical transmission. Background technique [0002] Gear is one of the most widely used basic transmission components in machinery, aerospace, shipbuilding and other industries. It can not only transmit power, but also realize the functions of deceleration, speed up and direction change of the transmission system, and plays a key role in equipment. Since the beginning of the new century, with the rapid development of automobiles, wind power, high-speed rail and other fields, my country's gear industry has made great progress. Gears are favored by people for their excellent performance such as stable transmission, reliable operation and high efficiency. With the improvement of industrial level, people's requi...

Claims

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Application Information

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IPC IPC(8): G01M13/02
CPCG01M13/021
Inventor 石照耀舒赞辉李睿
Owner BEIJING UNIV OF TECH
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