SU1128171A1 - Device for outer non-destructive checking of cylindrical articles - Google Patents

Abstract

DEVICE FOR EXTERNAL NDE CYLINDRICAL IZDELIY4 comprising a housing attached thereto transducer and support associated with the housing, resilient thrust the handle and connected to the connecting rods grippers with rlikami at the ends of the T l and h and w o f th order, that, in order to expand the range, the area of diameters controlled from, goods, grips are made in the form of rigidly connected levers oppositely located with the arms movably mounted on them with the possibility of 4 sliders with sliders with rollers at the ends. (Л А 8 Figure 1

Description

one

The invention relates to non-destructive testing of the number of products and can be used in ultrasonic external testing of cylindrical products.

A device is known for testing circumferential welds in metal pipes by an ultrasonic method, which contains a head mounted on the surface of the pipe under test with a piezoelectric transducer, moved by means of a roller chain over the surface of the pipe ij.

The disadvantage of this design is a limited range of diameters of the products being monitored, which is due to the dimensions of the chain links and the method of mounting the chain on the product being monitored.

The closest to the technical essence of the invention is a device for external non-destructive testing of cylindrical products, comprising a housing, a transducer attached to it and supports, pivotally connected to the housing spring-loaded pull-rods with handles and rollers at the ends 2 J.

A disadvantage of the known device is a narrow range with a diameter of monitored products, which is caused by the unchangeable size of 3 pick-off levers.

The purpose of the invention is to expand the range of diameters of controlled products.

This goal is achieved by the fact that in a device for external non-destructive testing of cylindrical articles, comprising a housing, a transducer and supports attached to it, pivotally connected to the housing, spring loaded pulls with handles and connected to the pulls, with rollers at the ends, the grippers are shaped as rigidly connected with. t oppositely located levers with movably mounted on or with the possibility of fixation sliders with rollers at the ends.

Figure 1 shows a device for external non-destructive testing of cylindrical articles, a general view; in fig. 2. - view A in FIG.

Device for external non-destructive testing of cylindrical products includes a housing 1, attachment 281712

Transducer 2 and roller bearings 3 hinged to the housing, 1 spring-loaded pull rods 4 with handles 5 and connected to 5 tees 4 grips with rollers 6 at the ends, while the grippers are made in the form of rigidly attached to pulls 4 oppositely located levers 7 with movably mounted on them with the possibility of fixing with sliders 8 with rollers b at the ends.

In addition, the device comprises hinge joints 9 connecting the body 1 with spring-loaded arms 4,

5 clamps 10 for rigidly securing the sliders 8 with rollers 6 to the levers 7 after moving the sliders 8 to the required value on the levers 7 of the spring 11 to press the rollers 6 to the surface of the tested product, additional springs 12 for fastening the piezoelectric converter 2 to the body 5 with screws 13 and brackets 14. On each of the levers 7

5, a scale 15 is applied to mark the movement of the slide 8 on the lever 7.

The device works as follows.

Before starting control sliders 8

 move along the levers 7 until the rollers 6 come into contact with the surface of the controlled product 16, after which the slide blocks 8 are fixed on the levers 7 with the fasteners 10.

With a scale of 15, uniform installation of the sliders 8 with respect to the controlled product LIAH 1.6 is achieved, depending on its size. The controlled article 16 is pressed against the device for the external non-destructive testing of cylindrical products with rollers 6 and roller supports 3 mounted on housing 1 with springs 11. Thereafter, screws 13 by changing the tension -.

The additional springs 12 are created to create the necessary clearance and angle of inclination of the piezoelectric transducer 2 fixed on the housing 1 with the help of brackets 14. In the process of control

 make the movement of the device around the controlled product 16.

After completion of control with the help of handles 5, fixed on spring-loaded t gax 4, overcoming

5, the resistance of the springs 11, turn the spring-loaded rods 4 in the hinge joints 9 and the rollers 6 are retracted from the test piece 16, after which

nepecfaHaenHBaroT device to another controlled product 16.

Thus, due to the fact that in the device for external non-destructive testing of cylindrical products, the grippers are made in the form

rigidly connected to levers oppositely arranged levers with movably mounted on them with the possibility of fixation with sliders with rollers at the ends, it is possible to control cylindrical products of different diameters.

/ 4 View A5

flji iji.-1 SDpiap, /

FIG. 2

Claims (1)

DEVICE FOR EXTERNAL NON-DESTRUCTIVE CONTROL OF CYLINDRICAL FIRST PRODUCTS $ containing a housing, a converter attached to it and supports, spring-loaded rods with handles pivotally connected to the housing and grippers with rollers at the ends connected to the rods, so that, in order to expand the diameter range of the monitored items, the grips are made in the form of oppositely arranged levers rigidly connected to the rods with movable mounted on them with the possibility of fixing sliders with rollers at the ends. Fi.1 with a body with sub-rails and grips with jointed rollers