SU1603229A1

SU1603229A1 - Installation for testing specimens of materials for bending

Info

Publication number: SU1603229A1
Application number: SU884605358A
Authority: SU
Inventors: Евгений Васильевич Лодус
Original assignee: Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела
Priority date: 1988-11-16
Filing date: 1988-11-16
Publication date: 1990-10-30

Abstract

Изобретение относитс к испытательной технике. Цель изобретени - расширение функциональных возможностей путем обеспечени испытаний как изгибом одного знака, так и знакопеременным изгибом. Дл этого установка имеет два упора 13, 14, размещенных по разные стороны от оси захватов 4 образца 5 и предназначенных дл попеременного взаимодействи с грузом 6, закрепленным на захвате, ограничители 15, 16 поворота платформы 2, два катка, закрепленных на валу привода вращени 1 симметрично относительно оси поворота платформы 2, и функциональные накладки 11, 12, кажда из которых закреплена на части цилиндрической поверхности соответствующего катка, предназначенными дл поочередного взаимодействи с платформой. Дл регулировани соотношени изгибающих нагрузок при знакопеременном деформировании катки 8, 9 установлены с возможностью перемещени вдоль оси вала 10 привода. 1 з.п.ф-лы, 3 ил.This invention relates to a testing technique. The purpose of the invention is to enhance the functionality by providing tests with both a bend in one sign and an alternating bend. For this, the installation has two stops 13, 14 placed on opposite sides of the axis of the grippers 4 of sample 5 and intended to alternately interact with the load 6 fixed on the gripper, limiters 15, 16 of rotation of platform 2, two rollers fixed on the shaft of rotation 1 drive symmetrically with respect to the axis of rotation of the platform 2, and functional linings 11, 12, each of which is fixed to a portion of the cylindrical surface of the corresponding roller, intended to alternately interact with the platform. To adjust the ratio of bending loads during alternating deformation, the rollers 8, 9 are mounted for movement along the axis of the drive shaft 10. 1 hp ff, 3 ill.

Description

сриг.2srig.2

Фиг. 5FIG. five

Claims

Claim

1. Installation for testing samples of materials for bending, comprising a housing, a rotary platform mounted on it, sample grips, one of which is mounted on the platform, a centrifugal load mounted on the second gripper and a rotation drive with a roller mounted on its shaft designed to interact with the platform , characterized in that, in order to expand the functionality by providing tests as a bend of the same sign, and alternating bending, the installation is equipped with two stops placed at different the orons осиτ of the gripper axis and designed for alternating interaction with the load, platform rotation limiters, a second roller mounted on the rotation drive shaft symmetrically to the first roller relative to the platform rotation axis, and friction linings, each of which is fixed to a cylindrical surface part of the corresponding roller, designed for alternating interactions with the platform.

2. Installation according to π. 1, characterized in that, in order to regulate the ratio of bending loads during alternating deformation, the rollers are mounted to move along the axis of the drive shaft.

Bu-s fi \ a

Figure 2

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