SU1420448A1 - Testing machine - Google Patents

Abstract

This invention relates to a testing technique. The purpose of the invention is to enhance the functionality by conducting tests under the combined action of bending, twisting and wear. Energizer, made in the form of a centrifugal regulator 2, consisting of two rods with a load mn and elements e; 1 of movement of rods, through a coaxially mounted rigid shaft and a flexible shaft 1 1 connected to the gripper 13 to heel one of the ends of the sample 10, the other the end of which is located in the gripper 12, which is a sleeve 14 with a supporting hole. A centrifugal regulator 2, rotating through a rigid shaft and a flexible shaft 11, loads the sample 10 with bending and torsional moments. At the same time, the sample 10, rotating with friction in the support hole of the sleeve 14, is subjected to wear tests. 2 Il.

Description

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The invention relates to testing equipment, in particular to devices for studying the strength properties of materials and structures under the combined action of bending, twisting and wear.

The purpose of the invention is to enhance the functionality by conducting tests under the combined action of bending, twisting and wear.

FIG. 1 depicts a test

loads 6 and 7 of a given weight with a certain position on the rods 4 and 5. With the help of elements 8 and 9, the required angle of the solution of the rods 4 and 5 is established. When the drive 15 is turned on, the centrifugal regulator the shaft 3 and the flexible shaft 4 load the sample with 10 twisting and bending moments. In addition, sample 10, rotating in the support hole of sleeve 14, is simultaneously subjected to

: car, general view; in fig. 2 - force 10 and wear tests. In the process of testing: the causative agent. The test items 8 and 9 can from the test machine contain the basis-change the angle of the solution shtang 4 and 5, the next 1, installed on it, force-generating, change the loading parameters. The driver, made in the form of a centrifugal test machine, allows an axial regulator 2, consisting of two sharpenings, to carry various combinations of applications with one end fixed on rigid loads and has a wide shaft 3 of the rods 4 and 5 installed on them with the possibility of axial movement and subsequent fixation of goods 6 and 7 and elements 8 and 9 for moving shtangs 4 and 5 fixed on the rigid shaft 3, a device for transferring the load on the sample 10 in the form of coaxially mounted rigid shaft 3 and flexible shaft 11 and Achvats 12 and 13 for sample 10. The gripper 12 is made in the form of a sleeve 14 with a support hole to accommodate one of the ends of the sample 10 and is fixed on the base 1, and the gripper 13 is connected to devices for controlling loading cycle parameters, namely amplitudes, frequencies and spans applied loads in the process of testing.

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device for transferring the load to sample 10, namely with a flexible shaft 11. For the formula of the invention

A test machine, containing a base, a power amplifier mounted on it, an associated device for transferring the load on the sample and grips for the sample, the first of which is fixed to the base, and the second is connected to the device for transferring the load on the sample to the test machine. action of ZO tea with the fact that, in order to expand, the functional activator is connected with the drive 15 through the gearbox 16. Elements 8 and 9 for moving the rods 4 and 5 are hydraulic cylinders, which are powered from the pump 17 rodvigatelem

capabilities by conducting tests under the combined action of bending, twisting, and wear, the device for transferring the load on the specimen is designed as coaxially fixed rigid and flexible

18. For supplying the working fluid to the hydraulic shaft 35, the energizer is in the form of centro-cylinders inside the rigid shaft 3 of the throw-in regulator consisting of two shargruzi 6 and 7 of a given mass with a definite position on the rods 4 and 5. mosh, elements 8 and 9 establish the required angle of the solution of the rods 4 and 5. When the drive 15 is turned on, the centrifugal regulator, vras, and through the rigid shaft 3 and the flexible shaft 4 loads the sample 10 with twisting and bending moments. In addition, sample 10, rotating in the support hole of sleeve 14, is simultaneously subjected to

and wear tests. In the course of the test, elements 8 and 9 can produce various combinations of applied loads and have wide loads.

the ability to adjust the parameters of the loading cycle, namely, the amplitudes, frequencies, and the range of applied loads, during the tests.

There are various combinations of applied loads and have wide

Claims (1)

Invention Formula A test machine, containing a base, a power amplifier mounted on it, an associated device for transferring the load on the sample and grips for the sample, the first of which is fixed to the base, and the second is connected to the device for transferring the load on the sample, by means of tests under joint action of bending, twisting and wear, the device for transferring the load on the sample is made in the form of rigid and flexible hydraulic channel. Testing machine works as follows. The test sample 10 is rigidly fixed at the end of the grip 13 at one end and placed at the other end of the sleeve 14 at the other. Depending on the loading conditions, the strings 4 and 5 are mounted one end fixed on the rigid shaft of the rods mounted on them with the possibility of axial movement and subsequent fixation of weights and elements for movement of the rods fixed on the rigid shaft, and the first of the grips in the form of a sleeve with a supporting hole for placing one of the ends of the sample.