A scanning and crawling device for flaw detection of slender components based on flexible shaft drive

Abstract

The invention discloses a long and thin component flaw detection scanning crawl device based on flexible shaft drive. The device comprises a first assembly and a second assembly, and the first assembly and the second assembly are connected into a whole through connecting rods. The first assembly comprises two first assembly sub-components identical in structure, first rolling wheel assemblies and second rolling wheel assemblies are arranged on first semi-circular supporting thin plates, the first rolling wheel assemblies are connected with motors through couplers and flexible shafts, the two first assembly sub-components are connected through a transfer hinge, and a closing buckle is arranged on the first semi-circular supporting thin plates. The second assembly comprises two second assembly sub-components identical in structure, third rolling wheel assemblies and fourth rolling wheel assemblies are arranged on second semi-round supporting thin plates, the two second assembly sub-components are connected through a transfer hinge, and a closing buckle is arranged on the second semi-circular supporting thin plates. The device is designed based on flexible shaft drive, and has the advantages of being light, smooth in running, wide in applicability and the like, and can meet the on-line detection requirements of components of different diameters and different detection environments.

Description

technical field [0001] The invention belongs to the field of online non-destructive testing devices for slender components, and more particularly relates to a scanning and crawling device for flaw detection of slender components driven by a flexible shaft. Background technique [0002] As we all know, cable-stayed bridge cables or slender pipe rods and other slender components will suffer from mechanical damage or corrosion during long-term use. With the accumulation of these damages, they will burst, causing waste of resources and threatening personal safety. In addition, in the production process of slender components, there are inevitably manufacturing defects such as small holes and welds. Therefore, before leaving the factory and during use, the performance of slender components needs to be regularly tested and maintained to avoid occurrence ACCIDENT. [0003] At present, the detection methods for slender components can be divided into manual detection method and autom...

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Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a crawling device for flaw detection and scanning of slender components driven by a flexible shaft, wherein the crawling device for flaw detection and scanning based on a flexible shaft is designed in combination with the characteristics of the crawling device itself. , and the research and design of its key components such as the structure of the first component and the second component and their specific assembly methods can effectively solve the problems of device weight, excessive volume, high center of gravity and prone to sideslip detection. At the same time, it also has the advantages of good detection stability and strong adaptability, so it is especially suitable for online non-destructive testing of slender components such as cables of cable-stayed bridges or slender pipes.

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