Ultrasonic flaw detection auxiliary device inside air bottle

Abstract

The invention discloses an ultrasonic flaw detection auxiliary device inside an air bottle, which relates to the technical field of air bottle quality testing equipment. The ultrasonic flaw detection auxiliary device comprises a sleeve component; one end of the sleeve component is hinged with a ultrasonic probe connecting piece through a hinge shaft; an ultrasonic probe is installed at one end of the ultrasonic probe connecting piece; an air hole communicated with the inner cavity of the sleeve component is formed at the other end of the sleeve component; a compression spring is arranged in the inner cavity of the sleeve component; one end of the compression spring is fixed on the sleeve component; the other end of the compression spring is connected with a positioning block; the positioning block is glidingly arranged in the inner cavity of the sleeve component; a positioning rope is arranged on the positioning block; and one end of the positioning rod gets around the hinge shaft and is fixed on the ultrasonic probe connecting piece. The ultrasonic flaw detection auxiliary device can accomplish the all-dimensional flaw detection inside the air bottle, can accurately detects the flaw inside the air bottle, guarantees the quality of the air bottle, and provides safety guarantee for the use of the air bottle.

Description

technical field [0001] The invention relates to the technical field of gas cylinder quality detection equipment, in particular to an auxiliary device for ultrasonic flaw detection inside a gas cylinder. Background technique [0002] Ultrasound is a sound wave with a frequency higher than 20,000 Hz. It has good directionality, strong penetrating ability, and is easy to obtain concentrated sound energy. Therefore, it is widely used in medicine, military, industry and agriculture. In the gas cylinder production industry, ultrasonic waves are mostly used to detect the quality of gas cylinders. Ultrasonic waves can penetrate deep into metal materials, and when they pass from one section to another, they are reflected at the edge of the interface. We use this ultrasonic wave One feature to detect defects such as air holes, slag inclusions, and small cracks in the cylinder body of the gas cylinder. At present, the technology of using ultrasonic waves to detect flaws on the outer s...

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Problems solved by technology

At present, the technology of using ultrasonic waves to detect flaws on the outer surface of gas cylinders has been very mature, but because the body of some gas cylinders is composed of multi-layer materials, it is difficult to distinguish ultrasonic echoes due to the large number of interfaces, resulting in the failure of gas cylinders. It is difficult to accurately detect the inner layer defects of the body; if the ultrasonic probe is put into the gas cylinder for detection, and because the bottle mouth of the gas cylinder is small, the ultrasonic probe cannot fully detect the gas cylinder body in the gas cylinder. Orientation detection, so it is impossible to complete the detection of the quality of the gas cylinder

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