JPS62165561U

JPS62165561U -

Info

Publication number: JPS62165561U
Application number: JP5356886U
Authority: JP
Priority date: 1986-04-11
Filing date: 1986-04-11
Publication date: 1987-10-21

Description

[Brief explanation of drawings]

第１図は本考案による探傷装置の一実施例の要
部を示す部分断面図、第２図は第１図の―矢
視断面図、第３図は第１図の―矢視断面図で
ある。図面中、０１はプローブ、０２はプローブホル
ダ、０３はプローブ台、０４はピストン、０７は
軸受台、１３はローラチエーン、１４はスプロケ
ツトホイール、１５はスラスト玉軸受、２０はス
テツピングモータ、２１はマイクロベアリング、
２２は３つ爪ホルダ、２３はつる巻ばね、２５は
支持金具、２６はガイド軸である。 Fig. 1 is a partial sectional view showing the main parts of an embodiment of the flaw detection device according to the present invention, Fig. 2 is a sectional view taken along the - arrow in Fig. be. In the drawing, 01 is a probe, 02 is a probe holder, 03 is a probe stand, 04 is a piston, 07 is a bearing stand, 13 is a roller chain, 14 is a sprocket wheel, 15 is a thrust ball bearing, 20 is a stepping motor, 21 is a micro bearing,
22 is a three-claw holder, 23 is a helical spring, 25 is a support fitting, and 26 is a guide shaft.

Claims

[Scope of utility model registration request]

This is a device that simultaneously performs ultrasonic flaw detection on welds between multiple tubes and tube sheets, in which multiple holders inserted into each tube are held on a support, and an ultrasonic flaw detector is installed in the center of each holder. , a reference surface is provided on the support body to regulate the contact plate with the tube plate so that the ultrasonic flaw detector faces the optimum position of the flaw detection part when each holder is inserted into the tube, and each tube end is closed. A seal member is provided on the support body, a holder is provided at the tip of each holder so as to be rotatable relative to the holder, a holder is provided on the holder that is expanded by fluid pressure and pressed against the inner surface of the tube, and the holder is provided in each holder. a passage supplying fluid pressure to the body; a passage supplying water between the holder and the tube;
Each of the ultrasonic flaw detectors is provided with a passage for guiding the conducting wire, and a mechanism is provided for holding the main body of the device in an operating state by using the inner surface of the adjacent tube and the tube plate surface together with the holder, and furthermore, all the holders are connected to a power transmission mechanism. What is claimed is: 1. A welding part flaw detection device, comprising: a drive source for driving and rotating at least one holder to rotate all the holders synchronously;