SU1295322A2 - Device for ultrasonic checking of disks - Google Patents

Abstract

This invention relates to non-destructive testing. The aim of the invention is to increase the reliability of control due to the additional registration of defect-free sections of disks. In the process of monitoring, signals from block 5 of automatic signaling of defects of flaw detector 4 are transmitted to two parallel channels: to the channel containing the first logical element AND 6 and the first display unit 7 in series, where defects are recorded, and to the channel containing the serially connected logical the element is NOT 15, the second logical element AND 16 and the second block 17 of the display, where the detection of defect-free sections of the disks takes place. 1 il. c

Description

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The invention relates to non-destructive testing, which can be used for the flaw detection of discs and is an enhancement of the device — according to the main author. No. 991292.

The circuit of the invention is the improvement of the reliability of control due to the additional registration of defect-free areas of the disks.

The drawing shows the proposed device.

The device contains a rotating table 1, an ultrasonic transducer 2, a mechanism 3 for moving the transducer 2, a defectoscope 4 with an automatic defect detection unit 5 (ASD) connected to the last successive first logic element 6 and the first display unit 7, the drive 8, the reference unit 9, made in the form of an additional rotating table 10, kinematically connected with the main table 1 with the possibility of synchronous rotation with the latter, mounted on the additional table 10 of copier II with the profile 2 control zones and the sensor 13 track profile 12 of copier P, the output of which is connected to the second input of the logic element 6, the synchronizer I4 connected to the movement mechanism 3 of the ultrasonic transducer 2, the reference block 9 and the display block 7, and sequentially connected the logical element 15 that is connected with the output of the automatic defect signaling unit 5, the second logic element AND 16, the second input of which is connected to the output of the sensor 13 tracking the profile 12 of the copier 11, and the second display unit 17 connected to the synchronizer} 4.

Position 18 designates the controlled product, and position 1.9 - aeons control.

The device works as follows.

The controlled article 18, for example, a disc of a turbine of a poker type, is mounted on the table 1. The drive 8 drives the rotating table 1 together with the controlled product 8 and the mechanism 3 for moving the ultrasonic transducer 2 together with the latter. An additional table 10 with a copier 11 fixed on it, a controlled item 1 & rotates

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synchronously with the table, and the sensor 13 tracking the profile 12 of the copier 1 moves synchronously with the converter 2 due to the synchronizer 4. When the ultrasonic transducer 2 is located in the controlled zone 19, for example in the weld zone, the sensor 13 of the profile 12 of the copier I is above this profile 12 of copier 11, which causes the occurrence of a signal in the reference block 9. In the presence of a defect in the control zone, the signal from the converter enters through flaw detector 4 to the block 5 of the ASD. The arrival at both inputs of the logic element And 6 signals from the block 5 of the ASD and the reference unit 9 leads to the operation of the display unit 7, i.e. to the registration of the defect.

In this case, the input of the second logical element AND 16 receives a signal only from the tracking sensor 13, the signal from the ADS block 5, which enters the input of the HE 15, does not pass to the second input of the logical element 16.

As a consequence, the second block 17 of the display does not work.

If a signal arrives at only one input of the AND 6 logic element, for example, if there is no defect in the control zone, the display unit 7 does not operate, and the second display unit 17 receives a signal,

. the defect-free area is registered. When the transducer 2 is located outside the control zone, no signals are received to the display units 7 and 17 ..

Thus, the use of the proposed device makes it possible to increase the reliability of the ultrasonic control of the disks due to the additional registration and the defect-free parts 45 indicating the operability of the device.

Claims (1)

Invention Formula 0 five 0 Device for ultrasonic testing of discs by author. No. 991292, characterized in that, in order to ensure the reliability of the control due to the additional registration of defect-free sections of the disks, it is equipped with a series-connected logical element NOT whose input is connected to the output of the automatic registration unit; com, the second logic element of the master of the reference block, and the second AND, the second input of which is connected to the display unit connected to the sync output of the profile tracking sensor.