SU1486858A1 - Centrifugal installation for testing elongated specimens - Google Patents

Description

The invention relates to a test 'technique, namely to centrifugal installations for testing the strength of a long sample. The purpose of the invention

is the expansion of functionality due to the provision of both stretching and layer-by-layer destruction of the sample with subsequent impact. Drive 2 accelerates platform 4 with a 10–13 specimen fixed in the grippers up to a given speed. Turn on the mechanism 15 moving the latch 14. The latch 14 extends from the hole 17 of the load 6. The load 6 tears the sample 20 between the grippers 10 and 11. The load 6 with the cut off portion of the sample 20 moves along the guide 5 to its end. The next load 7 with its sample section after the destruction of the next sample layer moves to the impact interaction of the ends of the destroyed parts of the sample 20. 1 Il.

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1486858 A1

1486858

The invention relates to a testing technique, namely to centrifugal installations for testing the strength of a long sample.

The aim of the invention is the extension of functionality due to the provision of both stretching and layer-by-layer destruction of the sample with subsequent impact.

The drawing shows the installation diagram.

The installation includes a housing 1, a rotation drive 2 disposed thereon with an output vertical shaft 3, platform 4 mounted on the shaft 3 with a guide 5. The guide 5 is made horizontal and the diameter platform 4. The device also contains concentrically arranged weights 6-8 in the form of bushings and load 9, grippers 10-13, mounted on one of the ends of the sleeves and the load 9, and the latch 14 with the mechanism 15 for its movement fixed in the housing 1. At the free end of each sleeve there is a groove 16, and on the diametrically opposite side of the sleeve is radial The first hole 17, and the latch 14 is located in the grooves 16 and the holes 17. A counterweight 18 is also fixed to the platform. In the cargo 9, a diametrical hole 19 is made to accommodate the latch 14.

The installation works as follows.

The actuator 2 accelerates up to a predetermined speed platform 4 with the specimen 20 secured in the gripping 10-13. The mechanism 15 for moving the lock 14 is turned on. The locking device 14 moves downward out of the opening 17 of the load 6 and the sample 20 between the grippers 6 and 7 stretches from the centrifugal load force 6. This area is broken and the grip 10 with a load of 6 is moved to the end of the guide 5, where

5 stops. The latch 14 with further movement frees the goods 7 and 8, which destroy the corresponding parts of the sample 20. When moving the grippers 11 and 12 to the parts of the sample 20, the collapsed ends of these areas collide. This is how the layer-by-layer destruction of the sample with the impact interaction of the destroyed parts is performed.

Claims (1)

Claim 15 A centrifugal unit for testing a lengthy sample, comprising a housing, an actuator mounted on it with an output shaft, a platform mounted on the shaft with a guide, two weights placed on the guide, a lock of one of the weights, a mechanism for moving the lock and specimen grips, characterized in that the purpose of expanding the functionality by ensuring both stretching and layer-by-layer destruction of the sample with subsequent impact, it is equipped with additional weights and grippers, second and complementary The weights are made in the form of concentrically located sleeves, the claws are coaxially mounted on one of the ends of the corresponding sleeves, a groove is made on the free end of each sleeve, a radial hole is on the diametrically opposite side, and the retainer is located in the slots and openings of plugs.