SU1619128A1

SU1619128A1 - Installation for testing tubular specimens of materials for strength

Info

Publication number: SU1619128A1
Application number: SU894641557A
Authority: SU
Inventors: Евгений Васильевич Лодус
Original assignee: Всесоюзный научно-исследовательский институт горной геомеханики и маркшейдерского дела
Priority date: 1989-01-26
Filing date: 1989-01-26
Publication date: 1991-01-07

Abstract

Изобретение относитс к испытательной технике и позвол ет испытывать трубчатые образцы материалов на усталостную прочность при повторных нагружени х. Цель изобретени -- расширение функциональных возможностей путем обеспечени как одновременного удара по кольцевому направлению, так и последовательных ударов по всей поверхности образца. Обкатыва кулачок 4, барабаны 7 наматывают гибкие т ги 11 и перемещают ударники 9 в направл ющих 8 со сжатием пружин 10 до тех пор, пока не попадают в пазы 13 кулачка 4. Барабаны 7 периодически освобождаютс от фрикционной св зи с кулачком 4, а ударники периодически нанос т удары по поверхности образца. Одновременный удар осуществл ют путем отделени кулачка 4 от привода его вращени с помощью муфты. 2 ил.The invention relates to a testing technique and allows testing of tubular samples of materials for fatigue strength under repeated loads. The purpose of the invention is to enhance the functionality by providing both a simultaneous impact on the annular direction and successive impacts on the entire surface of the sample. By rolling the cam 4, the drums 7 wind the flexible rods 11 and move the strikers 9 in the guides 8 with the compression of the springs 10 until they get into the grooves 13 of the cam 4. The drums 7 are periodically released from the friction link with the cam 4, and the drums periodically strikes on the surface of the sample. The simultaneous impact is carried out by separating the cam 4 from the drive of its rotation by means of a clutch. 2 Il.

Description

Щиг.1Schig.1

Claims

The invention relates to testing equipment and allows you to test tubular samples of materials for fatigue strength under repeated loading.

The purpose of the invention is the expansion of functionality by providing both simultaneous impact in the annular direction, and successive strokes over the entire surface of the sample. While rolling the cam 4, the drums 7 wind the flexible rods 11 and move the hammers 9 in the guides 8 with compression of the springs 10 until they fall into the grooves 13 of the cam

4. The drums 7 are periodically released from the frictional connection with the cam 4, and the drummers periodically strike on the surface of the sample. A simultaneous blow is carried out by separating the cam 4 from the drive of its rotation using the clutch. 2 ill.

SU 1619128 A1

The invention relates to testing equipment, namely, to installations for testing tubular samples of materials for fatigue strength during repeated dives.

The purpose of the invention is the expansion of functionality by providing both simultaneous impact in the annular direction, and successive strokes over the entire surface of the sample.