SU968740A1 - Device for ultrasonic flaw detection - Google Patents

Description

(5) DEVICE FOR ULTRASOUND DEFECTSCOPY

one

The invention relates to a measurement technique and can be used in non-destructive testing.

A device for ultrasonic testing of sheet metal containing a frame, a sheet feeding mechanism in the control zone, an acoustic unit with a local bath and a bath pressing mechanism on the sheet are known, rubberized rollers, levers, one end of each of which is spring-loaded relative to the frame, and the other end mounted an ultrasonic sensor, on the case of which a shoe is fixed, designed to interact with the surface is sheet rolled metal 1.

However, the reliability of the control in this device is insufficient, since the use of local baths with their mechanisms for clamping to the sheet causes the presence of uncontrollable zones over the sheet area and creates instability of the acoustic contact, depending on possible surface irregularities.

The closest in technical essence to the invention is a device for an ultrasonic defect. copies containing an immersion bath, tables placed in it, roller conveyors with bearings and ultrasound finders, as well as recorders of ultrasonic signals 2.

A disadvantage of the known device is low productivity and quality of control, due to the design of tables and roller table bearings.

The purpose of the invention is to increase the productivity and quality of control.

Claims (2)

This goal is achieved by the fact that a device for ultrasonic flaw detection, containing an immersion bath, tables placed in it, roller tables with bearings and ultrasonic finders, as well as recorders of ultrasonic signals, is equipped with table lifting mechanisms made in the form of heavy chains with counterweights, leading and tensioning sprockets, a hydr emitting unit of scale from sheet material and co-shafts of bearings hydraulically connected to the washout unit. Figure 1 shows a schematic diagram of a device for ultrasonic inspection; in fig. 2 - the same, on a pepper cut; in fig. 3 is a schematic diagram of the lifting mechanism. The device for ultrasonic flaw detection contains an immersion bath 1, tables 2 and 3, roller tables 4, tongues 5 with covers 6, ultrasound finders 7, recorders of ultrasound signals (not shown), mechanisms 8 and 9 of lifting tables 2 and 3, made in as traction chains 10 with counterweights 11, leading sprockets 12, nat asterisks 13, and node 14 hydroscale scale. In addition, the device includes an electric motor 15, kinematically interconnected gear 16, distributing shafts 17 leading shafts 18 deflecting sprockets 19, included in the washout unit pump 20 of the washout unit 14, electric motor 21 of pump 20, pipeline 22, and control valve 23, sheet material 24.. The device for ultrasonic flaw detection works as follows. The controlled sheet material 2 is fed from the process stream to the immersion bath 1 at the roller table 4 and table 2, which is in the upper position. Then, by means of a control panel (not shown), an electric motor 15 is connected, connected via a gearbox 16 to the dispensing shafts 17. the leading shafts 18 and sprockets 12. The sprockets 12, rotating, move the traction chains 10, on which tables 2 and 3 with the roll table 4 and the sheet material 24 located thereon. The traction chains 10 with the help of counterweights 11 provide a uniform load on the lifting mechanisms 8 and 9. When asymmetrical installation of sheet material 24 on the roller tables 4 or 0 4 uneven tension traction chains. 10, located on the diverting sprockets 19, ensuring its horizontal position is reached by tensioning sprockets 13. Moving along the roller table 4, the sheet material 24 is subjected to hydrowashing with a stream of immersion liquid flowing under pressure from the hydrodamping unit 14, water in which is supplied from the immersion bath 1 through pipe 22 by a pump 20 with an electric motor 21. At the same time, water is pumped from unit 14 of the washout into the housings 6 of the bearings 5 of the roller tables 4 through the control valve 23. Thereafter, the sheet material 24 moves under One of the rollers 4 is controlled by ultrasonic searchers 7. Information about the continuity of the sheet material 24 is transmitted to the recorder of ultrasonic signals (not shown; then tables 2 and 3 are raised by means of the mechanisms 8 and 9 together with the roller table 4 and sheet 24, and The process is repeated. Thus, the design of the mechanism for lifting tables with roller tables and the use of a hydraulic washout assembly provides improved performance and quality control. Apparatus of the Invention Ultrasonic flaw detection device containing an immersion bath, tables placed therein, roller tables with bearings and ultrasonic finders, as well as recorders of ultrasonic signals, characterized in that it is equipped with table lifting mechanisms to increase the performance and quality the form of traction chains with counterweights, drive and tension sprockets, a unit for washing the scale from sheet material and bearing housings hydraulically connected to the unit flushes. Sources of information taken into account during the examination 1. USSR author's certificate number 627395, cl. G 01 N 29/04, 1976. 2. USSR author's certificate number 180394, cl. 6 01 N 29/04, 19b7 (prototype).