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Gear pitting detection method

A detection method and gear technology, applied in measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of high cost, low precision, limited scope of application, etc., to reduce detection cost, high precision, reduce secondary The effect of secondary injury

Inactive Publication Date: 2020-04-14
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problems of high cost, limited scope of application and low precision in the prior art, and provides a gear pitting detection method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The present invention will be described in detail below with specific embodiments.

[0034] A kind of gear pitting detection method of the present invention is specifically implemented according to the following steps:

[0035] Step 1. Clean the tooth surface of the gear under test;

[0036] Step 2. Prepare the rubbing paper, and paste the rubbing paper on the pitting area of ​​the gear surface:

[0037] 2.1) Prepare self-adhesive rubbing paper, and record the numbers, cycle times, and loading conditions of the tested gear and corresponding gear teeth on the rubbing paper;

[0038] 2.2) When the tooth surface temperature of the gear to be tested is 20-60°C, paste the rubbing paper on the pitting area of ​​the gear surface;

[0039] Step 3. Use a hard object with a hardness less than that of the gear to smear the surface of the rubbing paper to make the non-pitting area change color;

[0040] Step 4. Remove the rubbing paper, and screen the pitting appearance on the r...

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PUM

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Abstract

The invention relates to a gear pitting detection method, thereby solving problems of high cost, limited application range and low precision in the prior art. According to the invention, the method comprises the following steps: step 1, cleaning a tooth surface of a measured gear; step 2, preparing rubbing paper, and adhering the rubbing paper to a pitting area on the surface of the gear; step 3,coating the surface of the rubbing paper with a hard object to change the color of a non-pitted area; step 4, taking down the rubbing paper, and screening the pitting morphology on the rubbing paper through a microscope; and step 5, calculating the area of the pitting morphology. According to the pitting detection method, only rubbing paper, a microscope and a computer are needed; and compared with the prior art, the method enables the detection cost to be effectively reduced.

Description

technical field [0001] The invention relates to gear pitting detection, in particular to a gear pitting detection method. Background technique [0002] Gear fatigue pitting and peeling are the most important failure forms of gear meshing. GB / T 14229-93 "Gear Contact Fatigue Strength Test Method" stipulates that the criterion for tooth surface contact fatigue failure is the degree of pitting damage on the tooth surface (pitting corrosion Area ratio ≥ 4%) is standard. [0003] At present, there are mainly four methods for gear pitting detection, which are direct observation method, microscope direct observation method, synthetic quilt replication method and direct photography method. However, these methods have different problems. [0004] First, the direct observation method: refers to the direct measurement of pitting dimensions with a vernier caliper to estimate the pitting area. Although this method is simple, the measurement results are extremely inaccurate. [0005] S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01B11/28
CPCG01N17/006G01B11/28
Inventor 杨小勇严鉴铂刘义许明中
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD