SU1587407A1

SU1587407A1 - Installation for impact tests of samples of materials

Info

Publication number: SU1587407A1
Application number: SU884497170A
Authority: SU
Inventors: Евгений Васильевич Лодус
Original assignee: Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела
Priority date: 1988-10-24
Filing date: 1988-10-24
Publication date: 1990-08-23

Abstract

Изобретение относитс к испытательной технике и позвол ет испытывать на прочность образцы материалов циклическими ударными нагрузками в услови х нагружени их массовыми силами. Цель изобретени - расширение функциональных возможностей путем обеспечени испытаний образцов как не нагруженных массовыми силами, так и нагруженных неравномерными по его длине массовыми силами. При вращении только дисковой платформы 3 и периодическом включении электромагнитов ударники 9 периодически соедин ютс с платформой 3, сжимают силовые пружины 11 и нанос т удары по образцу 7. При вращении с разными скорост ми дисковых платформ 2, 3, образец 7 нагружаетс неравномерными по длине массовыми силами, т.к. он располагаетс на вращающейс дисковой платформе 2 в радиальном направлении, а циклические удары нанос тс при периодическом включении электромагнитов за счет относительного вращени дисковых платформ 2,3. 2 ил.The invention relates to a testing technique and allows testing the strength of samples of materials by cyclic shock loads under conditions of loading with mass forces. The purpose of the invention is to expand the functionality by providing tests for samples not loaded with mass forces or loaded with mass forces that are uneven over its length. When rotating only the disk platform 3 and periodically turning on the electromagnets, the impactors 9 are periodically connected to the platform 3, compress the power springs 11 and strike the sample 7. When rotating at different speeds of the disk platforms 2, 3, the sample 7 is loaded with mass irregular lengthwise by forces it is located on the rotating disk platform 2 in the radial direction, and cyclic shocks are carried out when the electromagnets are periodically turned on due to the relative rotation of the disk platforms 2, 3. 2 Il.

Description

Фиг. гFIG. g

Claims

Claim

Installation for impact testing of samples of materials, containing a base with a guide for the sample and the mechanism of its cyclic loading, made in the form of additional guides located along the guide for the sample and mating with it at right angles and located in these guides of the corresponding impactors, power springs and electromagnets , characterized in that, in order to expand the functionality by providing testing of samples, both not loaded by mass forces, and not loaded with uniform mass forces along the length, the installation is equipped with two disk platforms coaxially mounted between the base and the guide for the sample with respective drives for their rotation, the sample guide is mounted on one of the disk platforms in the radial direction, the additional guides are circular and mounted coaxially with the platforms, and the electromagnets are fixed on the corresponding drummers with the ability to interact with another disk platform.

Figure 2