| 摘要 |
PURPOSE:To simplify a mounting operation and to reduce the weight of the device by pinching a pipe to be detected by means of respectively 3 pieces of upper and lower rollers, and repeating the operation to move a probe in the major axis direction and then to move the probe by rotating the rollers. CONSTITUTION:The pipe to be detected is pinched by means of a pair of the upper and lower revolving rollers 14, 15 and a pressure receiving roller 13 of a clamp. A timing belt 34 rises in an axial direction when a motor 19 for driving the rollers and a motor 30 for driving the belt are operated. A holder 37 fixed thereto and the probe 39 move up to the upper limit position while receiving ultrasonic waves and a detecting means 40 stops the motor 30 by detecting the position. The rollers 14, 15 are then rotated at a prescribed pitch by the motor 19 to move the probe 39. The belt 34 moves downward and thereafter, this operation is repeated to continue the flaw detection of the pipe. The mounting operation is simplified in this way and the weight of the device is reduced. |
