Rotary type eddy current flaw detector
专利汇可以提供Rotary type eddy current flaw detector专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent a shock generated when a flaw detector is inserted into a thin pipe from being applied to a main rotation part and to enhance the close fitting of a flaw detection sensor to the internal surface of the pipe by fitting the flaw detection sensor to the outer peripheral part of a shell which increases in diameter with the centrifugal force at the time of rotation.
CONSTITUTION: External cylinders 15a and 15b which face each other at the center position of a hollow shaft 11 are fixed to the hollow shaft and the shell 2 is mounted rotatably between the two external cylinders. Shells 2a and 2b are nearly semicircular and the eddy current flaw detection sensor 1 and a contact bearing 3 are fitted to their outer peripheral parts. Both ends of the shell 2a and 2b are coupled mutually by coil springs 10a and 10b respectively and the external diameter is small in a stationary state, but when pressure air is supplied to rotate the shells, the shells 2a and 2b are pushed out and rotate along the internal surface of the thin pipe. The whole flaw detector is aligned by a pantagraph type alignment units 16W21, so the traceability of the sensor 1 on the internal surface of the thin pipe is improved.
COPYRIGHT: (C)1987,JPO&Japio，下面是Rotary type eddy current flaw detector专利的具体信息内容。
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