Gear meshing mark detection method

A detection method and imprint technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of low measurement efficiency and large measurement error, and achieve the effects of improving accuracy, good consistency, and facilitating data accumulation

Inactive Publication Date: 2019-02-15
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the tooth surface of the spiral bevel gear of the central gearbox is a Gleason spiral tooth surface, which cannot be accurately measured with a conventional length measuring tool vernier caliper, so the calipers of the vernier caliper can only be used to draw the estimated data, the measurement efficiency is low, and the measurement error is large Big

Method used

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  • Gear meshing mark detection method

Examples

Experimental program
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Embodiment

[0033] The method of the present invention is used for the detection of the meshing marks of the spiral bevel gear of the central gear box of the aero-engine:

[0034] Step 1, using CAXA drawing software to survey and map the tooth surface shape profiles of the working surface and the starting surface of the central gearbox spiral bevel gear respectively, and use the CAXA drawing software to draw the surveying and mapping tooth surface shape profiles;

[0035] Step 2: Use CAXA drawing software to draw a coordinate ruler on the corresponding parts of the tooth surface profile drawn in step 1. The accuracy of the coordinate ruler is 0.25mm, and make a colored impression measurement card, as shown in figure 2 , image 3 As shown; print out the colored imprint measurement card, the printing ratio is 1:1; use transparent PET plastic film to print the colored imprint measurement card.

[0036] Step 3, use the coloring mark measuring card printed in step 2 to measure the dimensions...

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Abstract

The invention discloses a gear meshing mark detection method which includes the following steps: surveying and mapping the tooth surface shape contours of the working and starting surfaces of a gear,and drawing the surveyed and mapped tooth surface shape contours; drawing a coordinate ruler at the corresponding parts of the drawn tooth surface shape contours, making a coloring mark measuring card, and printing out the coloring mark measuring card; and measuring the sizes of the meshing color marks of the working and starting surfaces of the gear by using the printed coloring mark measuring card. The tooth surface shape contours drawn by CAXA drawing software are accurate, and are well meshed with the actual gear. By using the method of the invention, the sizes of the meshing marks of a spiral bevel gear can be quickly and accurately measured, the technical problem that there is big error in size measurement of the meshing marks of a spiral bevel gear in the assembly process of a central gear box component is solved, and the assembly efficiency of gear box components is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical assembly and repair, and in particular relates to a method for detecting gear meshing marks. Background technique [0002] The central gear box of an aero-engine realizes the transmission function through the meshing motion of a pair of spiral bevel gears. The tooth surface of the spiral bevel gear is a complex free-form surface, and there is no standard tooth shape. The position and shape of the meshing marks are used to evaluate its transmission performance Therefore, there are strict requirements on the shape of the meshing impression. Spiral bevel gear tooth surface meshing imprint coloring inspection is to simulate the engine transmission mode to check the expected color imprint by coloring to ensure the distribution of the tooth surface contact imprint of the gear pair under the rated static load, based on the position and area of ​​the color imprint The meshing quality of the gear trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/28G01B21/02
CPCG01B21/02G01B21/28
Inventor 王幸李建锋李荣刘丽慧徐佳伟白立欣郗育钊梁影
Owner AECC AVIATION POWER CO LTD
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