SU1231433A1 - Arrangement for material abrasive wear testing - Google Patents

Abstract

This invention relates to a testing technique and can be used in determining wear resistance. bones of various materials under conditions of abrasive action. The purpose of the invention is to improve the accuracy and reliability of the test results by measuring the rigidity of the specimen attachment and the angle of attack of the abrasive. L-shaped stops rigidly mounted on the shell of the drum. When the specimens take the required angle of inclination corresponding to the given angle of attack of the abrasive, the retainer is introduced into engagement with the notched notch, fixing the support ring in the direction of the hook. 5 il. with "

Description

The invention relates to a testing technique and can be used in determining the wear resistance of various materials under conditions of abrasive action.

The purpose of the invention is to improve the accuracy and reliability of the test results by changing the rigidity of attachment of the samples and the angle of attack of the abrasive.

FIG. 1 shows a diagram of the device, side view; in fig. 2 - the same, front view; in fig. 3 — node 1 in FIG. 2; in fig. 4 shows section A-A in FIG. one; in fig. 5 shows a section in FIG. four.

The device comprises a frame 1 on which a drive 2 and a drive shaft 3 are mounted. On the shaft 3 a drum 4 with cassettes 5 for test specimens 6 is cantilevered and fixed. Each cassette 5 is fastened in a holder consisting of a support platform 7 and an elastic base 8 (for example, rubber gaskets). At one end, each support pad 7 is connected to an L-shaped stop 9, rigidly connected to the shell of the drum 10. At the opposite ends of the support platforms 7, axles 11 are welded through the radial grooves 12 in the front wall 13 of the drum 4. On the outer side of the wall 13, an annular guide 14 is welded in which the support ring 15 is installed with copy grooves 16. The free ends of the axes 11 pass through the grooves 12 of the wall 13 and are located in the copy grooves 16 of the support ring 15 on which the handles 17 are fastened to rotate it. On the inner diameter of the ring 15, a notched gear 18 is made, which is engaged with the latch 19, spring loaded 20 from the stop 21 fixed to the wall 13. Refractors 23 are fixed to the abrasive 22 under the bearing pads 7 at the ends of these platforms. The stiffness of the elastic base is adjusted using studs 24,

The device works as follows.

In the cassette 5 place the samples 6 test materials. The latch 19 is disengaged from the notched tooth 18, and using the handle 17 rotates the support ring 15 in the guide 14. In this case, the axis 11 slides

at the same time in the radial grooves 12 of the drum 4 wall and in the copy grooves 16 KOJTbua 15.

Simultaneous tilt occurs

reference sites 7 cassette holder and, accordingly, installed on the basis of 8 cassettes 5 with samples 6. When the samples will take the desired angle of inclination corresponding to the specified

the angle of attack of the abrasive, the latch 19 is engaged with the notched notch 18, fixing the ring 15 in the guide 14.

At the same time, all support sites 7

the holders of the cassettes with the samples (each of which is connected at one end to the stop 9 and the opposite end through the axis 11 with the support ring 15) are rotated to the same

angle.

Using the studs 24, install the necessary rigidity of the base 8. Then the abrasive 22 is poured into the drum 4 and the drive is switched on. When the drum rotates, the abrasive with the front side of the cassettes rises to a certain height, determined by the speed of rotation of the drum, and then falls on the test samples 6 installed with

given stiffness and at a certain angle of attack.

In this case, the rigidity of the base of the samples may be different. The amount of wear is judged by the change in mass and linear dimensions of the samples after

test

Claims (1)

Claims. An apparatus for testing abrasive wear, containing a frame, a drive mounted on it, a hollow drum located on the drive shaft with cassettes for test specimens placed on the inner cylindrical surface and means for supplying an abrasive medium, characterized in that test results it equipped with outdoor to the side of the front wall of the drum with an annular guide, a rotary ring installed in it with copy grooves and a notched notch in internal diameter, spring-loaded a latch and an emphasis, interacting with a notched notch, L-shaped stops, rigidly fixed on 312314334 the shell of the drum, and the cage holders interact with the f-reversal, with the bases of the adjustable stiffener, and the opposite with the copier bone, each of which is one contour of the support ring. 0uf.t rm2 24 AT 18 8- B  W J1Hyyy ShygyygShy 11 7X g 7 ten / fi Compiled by 3. Ignatieva Editor A. Dolinnch Tehred I. Gaidosh Proofreader M. Demchik Order 2559/49 Circulation 778 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4