Ultrasonic stress detection probe device adapted to different curved surfaces

Abstract

The invention relates to an ultrasonic stress detection probe device adapting to different curved surfaces. The device comprises a middle fixing device, a left side ultrasonic apparatus, a right side ultrasonic apparatus, a left side fixing device and a right side fixing device. The middle fixing device fixes the probe apparatus to a detected medium surface under a magnetic force effect. The left side ultrasonic apparatus is connected to a left side of the middle fixing device through a pin, can be driven by a worm to carry out fixed-axis rotation so as to adapt to a detected medium curved surface, and can emit / receive a ultrasonic wave. The right side ultrasonic apparatus is connected to a right side of the middle fixing device through the pin, can be driven by a left side ultrasonic apparatus gear to synchronously carry out fixed-axis rotation so as to adapt to the detected medium curved surface, and can emit / receive the ultrasonic wave. The left side fixing device is connected to a left side of the left side ultrasonic apparatus through a screwed hole and a square groove, and through a magnetic force, the left side ultrasonic apparatus is fixed to the detected medium surface and a stable coupling state is reached. The right side fixing device has a same structure and same functions with the left side fixing device. In the invention, a curved surface ultrasonic nondestructive test probe and the fixing devices of the above structure are adopted, and under a service condition, plane and curved surface stresses of equipment are tested.

Description

Technical field: [0001] The invention belongs to the field of stress detection, and in particular relates to a workpiece curved surface stress detection device. The device is small in size and light in weight, can quantitatively adjust the angle according to needs, adapt to curvatures of different sizes, and can be widely applied to curved surfaces of workpieces with different curvatures. For example: oil and gas pipelines, gas storage tanks, bridges, etc.; the magnetic adsorption force can be adjusted according to needs, and it is widely used in the field of sensor fixation in ultrasonic nondestructive testing. Background technique: [0002] Residual stress is an important criterion for workpiece quality evaluation, which is very harmful to workpieces in service, for example, accelerating the generation of fatigue cracks, reducing fatigue life, stress corrosion, deformation, instability, etc., so the detection of materials is of great significance . Currently the most wide...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the shortcomings of the prior art that the ultrasonic transducer cannot be stably coupled with the surface of the equipment under test and lacks a measuring device for the curved surface of the equipment, the present invention provides a curved surface ultrasonic nondestructive testing device with high precision, The advantage of simple operation can provide constant coupling pressure and can detect the curved surface part of the equipment in service state

Images