Ultrasonic thickness gauge applicable to small pipelines

Abstract

The invention relates to an ultrasonic thickness gauge applicable to small pipelines. The ultrasonic thickness gauge comprises a host, a connecting rod, a detection plate, a fixing mechanism and a detection mechanism, wherein the fixing mechanism comprises a movable ring and two fixing assemblies; each fixing assembly comprises a clamping plate, a support rod, a side plate and a translation unit;the detection mechanism comprises a lifting assembly, a lifting plate, a telescopic assembly, a telescopic plate, a steering assembly, a steering plate, a probe and two detection assemblies; the lifting assembly comprises a first motor, a bearing, a first drive shaft, a support frame and two lifting units. According to the ultrasonic thickness gauge applicable to the small pipelines, the fixing mechanism drives two clamping plates to rotationally clamp pipelines, so that the detection plate and the pipelines are fixed relatively, the angle of the probe can be adjusted conveniently, and accurate measurement can be realized. Moreover, the angle of the probe is adjusted through the detection mechanism, so that the probe is aligned to the pipelines, the probe detects all parts of the pipelinesthrough vertical movement, the condition that the measurement results are affected by sediments in the pipelines is prevented, and the detection accuracy of the equipment is improved.

Description

technical field [0001] The invention relates to the field of ultrasonic detection equipment, in particular to an ultrasonic thickness gauge suitable for small pipelines. Background technique [0002] The ultrasonic thickness gauge measures the thickness according to the principle of ultrasonic pulse reflection. When the ultrasonic pulse emitted by the probe passes through the object to be measured and reaches the interface of the material, the pulse is sent back to the probe. By accurately measuring the propagation time of the ultrasonic wave in the material, the Determine the thickness of the material being measured. Ultrasonic thickness gauges can measure the thickness of various pipes and pressure vessels in production equipment, detect their degree of thinning after being corroded during use, and can also accurately measure various plates and various processed parts. [0003] When the existing ultrasonic thickness gauge is measuring some small pipelines, the probe canno...

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Problems solved by technology

[0003] When the existing ultrasonic thickness gauge is measuring some small pipelines, the probe cannot be accurately aligned with the pipeline. When the difference in acoustic impedance is not large, the displayed value of the thickness gauge is the thickness of the wall plus the thickness of the sediment, which leads to a deviation in the measured value, thereby reducing the practicability of the existing ultrasonic thickness gauge

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