SU134476A1 - Friction wear tester for samples of various materials - Google Patents

Description

Known devices for testing fcbs with friction of samples of different x-materials, including a sample-carrying mechanism, an abrasive tape-like mechanism, which acts on a sample of material moved under the tape.

The disadvantage of these devices is that they cannot be simultaneously tested on a number of samples according to a specific program.

In the proposed device, this disadvantage is eliminated by carrying out the carrying mechanism of the samples in the form of a drum With plug-in ribs, bent around the samples, reinforced with the help of clamps on the drum; the drive shaft of the drum on the part of the length is provided with a screw thread under the nut with a switch of the direction of rotation of the drive motor; the nut is located between the adjustable stops on the ruler acting on the switch in the extreme positions of the nut carrying it.

To determine whether the samples are rubbed on the instrument for friction, the drum can be made smooth, with the possibility of securing the sample on it around the circumference.

FIG. 1 shows schematically the proposed instrument; in fig. 2 - Smooth drum to determine the color fastness of samples.

The specimen-carrying mechanism is discharged in the form of a drum 1 with inserted ribs 2, which are bent off by samples 3 and the clamps 4 fixed on it. The abrasive mechanism in the form of a tape 5 is fixed at one end in clamp 6, and at the other end the belt is tensioned. Drive shaft 8 of the drum on the part

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length has a screw cut under the nut 9 with a non-switch 10 in the direction of rotation of the drive motor //. FaiiKa 9 is located between the adjustable stops 12 on the lining machine 13, acting on the switch 10 in the extreme positions of the carrier nut 9. When testing samples of various materials for wear by rubbing, the samples are fixed on the drum /, adjustable stops 12 are twisted in the desired position (determined by the test program) on Lengeik 13, the tape 5 is thrown over the drum and loaded with the load 7 ,. providing, contacting the tape with 5 samples 5 with the necessary Effort. Then, the driven electric motor // is turned on, and the drum / begins to rotate. When the shaft 8 rotates, the nut 9 with the switch 10 moves along the axis of the shaft until copeck1) P1 vcg, yuchatel (installed on the switch 10 does not abort into one of the adjustable stops and switches the driving motor 11 to the opposite direction -1e of rotation. Barab .An the beginning, the net will turn to the other side, and the gap 9 and the switch / b will start moving from the other side as far as the stop to the other relocation, the stop 12, and so on. with the only difference being that the smooth drum / 4 is changed (Fig. 2), and the sample / 5 is fixed around the circumference of the drum.

PRE D M E T F S A B R U

1. Device for testing tapi: wear by friction of samples of various materials, including non-existent; samples mechanism, abrasive mechanism in the form of a tape, which acts on a sample of material moved under the belt, characterized in that, in order to carry out simultaneous tests of a number of samples according to a specific program, the sample-carrying mechanism is made in the form of a drum with insertable ribs, bent around samples , the strengthened clips on a drum, - which drive shaft on parts of length is supplied with screw cutting; under the nut, with a switch of the direction of rotation of the drive eacl. engine, located between the adjustable stops-on the ruler, acting on the shifter in the extreme positions of its nut.

.: :: 2. The device according to p. 1, of tl and h and with the fact that, s, the wholeness of the possibility of determining the durability of specimens for idlers on this device, the drum is made smooth with the possibility of fixing on it .razd. circumference.,. .