Testing method and device for gear destruction

A technology of damage detection and detection device, applied in the direction of material magnetic variables, etc., can solve the problems of lack of on-site rapid detection methods and devices for bearing gear damage, difficult evaluation and inspection, etc., to achieve the effect of consistent detection distance, high sensitivity, and guaranteed detection accuracy.

Inactive Publication Date: 2010-12-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that there is no effective on-site rapid detection method and device for the damage of bearing gears in mechanical equipment, and it is difficul...

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  • Testing method and device for gear destruction
  • Testing method and device for gear destruction
  • Testing method and device for gear destruction

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Embodiment Construction

[0038] In order to better illustrate the purpose and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 Shown, the concrete realization step of detection method of the present invention is as follows:

[0040] Step 1. Design and manufacture an integrated detection probe. The shape of the detection area is consistent with the shape of the tooth profile of the tested gear tooth, and the size is slightly larger than the outer profile of the gear tooth, so that the gear tooth can pass through the detection device smoothly.

[0041] In step 2, a plurality of high-sensitivity magnetic sensitive elements are symmetrically distributed and installed on both sides of the integrated detection probe that presents the shape of the gear tooth profile, and are used to detect the change of the magnetic field signal at the tooth surface and tooth root.

[0...

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Abstract

The invention relates to testing method and device for gear destruction, belonging to the technological field of machinery non-destructive testing. The invention provides magnetic memory testing method and device capable of being engaged with the shape of gear teeth of a gear to be tested, wherein a plurality of paths of magnetic sensors are arranged on the device and simultaneously test the stress positions of the tooth surface, the tooth root and the like; a non-contact photoelectric element is adopted as a sampling triggering device; and one testing device scans once and can simultaneously record the destructive states of two tooth surfaces and the tooth root of one gear tooth. The device has the advantages of high testing efficiency and high precision and can avoid test dead zones. The invention can ensure that the testing course belongs to non-contact testing; the device has simple structure and can be singly used for testing a single gear tooth, and a plurality of testing devices can be integrated into one and used for simultaneously testing a plurality of gear teeth; and the method meets the destructive testing requirements of the gear in the actual working environment and is a non-destructive testing method with brighter prospects in the destructive testing of the gear.

Description

technical field [0001] The invention relates to a gear damage detection method and device, belonging to the technical field of mechanical nondestructive detection. Background technique [0002] Gears are an important part of mechanical equipment. The gears of large-scale mechanical equipment carry a large torque. Under the environment of continuous work for a long time, the teeth of the gears are prone to failure damage such as fatigue cracks, tooth surface wear, pitting and gluing. If timely and effective maintenance cannot be obtained, accidents such as broken teeth and fractures will occur, making the equipment unable to operate and causing heavy losses to production. [0003] In order to ensure the normal operation of the equipment, it is necessary to detect the load-bearing structural parts such as the teeth of the gear to ensure the normal and safe operation of the equipment. At present, the detection of gears is divided into online and offline detection. At present,...

Claims

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Application Information

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IPC IPC(8): G01N27/83
Inventor 张卫民范章刘书选殷亮涂青松高乾鹏
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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