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A device and method for measuring the overall error of gears based on double circular gratings

A technology of overall error and measuring device, which is applied in the direction of measuring device, optical device, mechanical component testing, etc., can solve the problems that cannot truly reflect the measured gear, affect the accuracy of the overall error measuring instrument of the gear, and achieve the goal of improving the measurement accuracy Effect

Active Publication Date: 2021-02-26
HENAN UNIV OF SCI & TECH
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Problems solved by technology

Under the action of the dynamic error of the shaft system, the measured overall error curve cannot truly reflect the actual tooth profile information of the measured gear, thus affecting the accuracy of the gear overall error measuring instrument

Method used

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  • A device and method for measuring the overall error of gears based on double circular gratings
  • A device and method for measuring the overall error of gears based on double circular gratings
  • A device and method for measuring the overall error of gears based on double circular gratings

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, present embodiment is described further:

[0036] In this embodiment, a device for measuring the overall error of gears based on double circular gratings is designed, and the method of using the device for measurement is described.

[0037] In this embodiment, the computer drives the servo motor to drive the measuring gear to realize the rolling scanning measurement of all the gear teeth of the tested gear, and the angular displacement signal generated by the measuring gear and the tested gear during the transmission process is converted into an electrical signal through a circular grating. The data is input into the computer through the data acquisition circuit, and the adverse effects of the shafting error on the measurement results are corrected by the circular grating readings. After analysis and calculation and data processing, the overall error and individual items of the gear under test can be obtained in accordance ...

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Abstract

The invention belongs to the technical field of precision testing technology, instrument and mechanical transmission, and specifically relates to a device and method for measuring the overall error of gears based on double circular gratings. The measuring device is composed of a mechanical part and an electric control part. The mechanical part can realize two linear motions and two rotary motions. The two linear motions are the position adjustment motion of the measured gear along the vertical direction and the position adjustment motion of the measuring gear along the horizontal direction. The two rotational movements are the rotational movement of the measuring gear shaft and the rotational movement of the measured gear shaft. Among them, the measuring gear shaft system is the active shaft system, and the measured gear shaft system is the passive shaft system. The invention can improve the measurement accuracy of the overall error of the gear through the compensation of the dynamic error of the shaft system without improving the accuracy of the shaft system of the instrument, and realize the online rapid measurement of the cylindrical gear with high efficiency, high precision and full information.

Description

technical field [0001] The invention relates to a gear overall error measuring device and method based on double circular gratings, and belongs to the technical fields of precision testing technology, instruments and mechanical transmission. Background technique [0002] Gears are the most widely used key basic components, and the quality of gears often directly determines the operating performance, service life, safety and reliability of equipment. The gear overall error measurement technology was pioneered by Chinese scientists and technicians in the early 1970s, which has played a huge role in promoting the technological progress of my country's gear industry. The gear overall error curve obtained by the gear overall error measuring instrument can vividly reflect the gear meshing transmission process, and accurately reveal the variation law of individual gear errors and the relationship between errors, which is especially suitable for the process error analysis and dynami...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/24G01M13/021
CPCG01B11/002G01B11/2416G01M13/021
Inventor 王笑一王永军张利杰张书涛
Owner HENAN UNIV OF SCI & TECH
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