SU462103A1 - Device for measuring and recording stress and strain during tensile testing - Google Patents
Device for measuring and recording stress and strain during tensile testingInfo
- Publication number
- SU462103A1 SU462103A1 SU1922557A SU1922557A SU462103A1 SU 462103 A1 SU462103 A1 SU 462103A1 SU 1922557 A SU1922557 A SU 1922557A SU 1922557 A SU1922557 A SU 1922557A SU 462103 A1 SU462103 A1 SU 462103A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- tensile testing
- strain during
- during tensile
- recording stress
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
1one
Изобретение отиоснтс к област) исследо- .ваии механических своГктв материалов.The invention of innovations to the region) is the study of mechanical materials.
Известно устройство дл измерени и регистрацнн усилий и деформаций при раст жении образцов на нснытательной машине с верхним и нижним эксцентрнковыми захватамн , содержащее двухкоордниатный самопнсец барабатаного тнна, рычажно-ма тниковый сн .,лоизмер нтель, кинематически св занный с верхн им захватом н самоиисцем, и стрелоч«ый измеритель дефор;мацни, кинематически .св занный с нижним захватом и салюнисцем.A device for measuring and registratsnn efforts and deformations tensile samples nsnytatelnoy machine with upper and lower ekstsentrnkovymi zahvatamn comprising dvuhkoordniatny samopnsets barabatanogo tnna, lever-pendulum fn., Loizmer ntel kinematically coupled with the upper them capture n samoiistsem and Arrow "measuring instrument defor; matsni, kinematically. associated with the lower grip and Salynis.
Однако это устройство имеет повышенную погрешНОсть измерени деформаций из-за прокатьгваии образца между эксцентриками .зажимов црИ возрастании нагрузки.However, this device has an increased error of strain measurement due to the rolling of the specimen between the eccentrics of the CRI clips and the increase in load.
Целью изобретени вл етс повышение точности измерени .The aim of the invention is to improve the measurement accuracy.
Это достигаетс тем, что устройство сиаб .жено грузовым механизмом с трем шкивами и гибкой нитью с грузом на одном конце, нервый из шкивов установлен на оси стрелочного измер ител деформации, второй - на оси, закреиленной на корпусе нижнего захвата, а третий, с закрепленньи на ием другим концом нити, установлен на оси одного из эксцеитриКОв нижнего захвата.This is achieved by the fact that the device is siab. It is a cargo mechanism with three pulleys and a flexible thread with a load at one end, the nerve of the pulleys is mounted on the axis of the needle deformer, the second is fixed on the axis of the lower grip, and the third is fixed On the other end of the thread, it is installed on the axis of one of the excerpts in the lower grip.
На чертеже представлена кинематическа .схема .Иредлагае.хюго устройства.The drawing shows a kinematic circuit. An average of a device.
Верхний 1 и иижний 2 эксцентриковые захваты исиытательпой машины кинематически св заны с рычажио-ма тниковым силоизмерителем 3 и стрелочным измерителем деформации 4 соответственно. В свою очередь рычажно-ма тинковый силонзмернтель кинематически св зан с нером 5, а стрелочный нзмеритель деформации с барабаном G самонисца, регистрирующего диаграмму раст жени образца 7 в координатах .аефор.маци -усилие. Кинематическа св зь стрелочного измерител деформации с барабаиом самоиисца осуществл етс посредством гибкой нити 8 с грузом 9 на конце, обхватывающей шкив 10 редуктора 11.The upper 1 and the lower 2 eccentric grips of the test machine are kinematically connected with the lever-force measuring device 3 and the deformation gauge 4, respectively. In turn, the lever-tyinki silonmerntel is kinematically connected with the ner 5, and the switch deformation meter with the drum G of the self-ruber recording the stretch diagram of the sample 7 in the coordinates of the aeforma-force. The kinematic connection of the switch of the strain gauge with Barbara Samoyand is carried out by means of a flexible thread 8 with a load 9 at the end, grasping the pulley 10 of the gearbox 11.
На оси одного из эксцентриков и.ижиего захвата установлен шкив 12, на котором закреплен конец нити 13. обхватывающей шкив 14, установленный иа кориусе нижиего захвата, и шкив 15, установленный на оси стрелочного измернтел деформаций. К свободному концу нити иодвешеи груз 16.A pulley 12 is mounted on the axis of one of the eccentrics of the lower grip, on which the end of the yarn 13 is fixed. The grip of the pulley 14 mounted on the lower grip pin and the pulley 15 mounted on the axis of the gauge deformations. To the free end of the thread and the weight of the load 16.
Грузовой мехаиизм с трем указаииыми шкивами и гибкой нитью иредназначен дл комиенсации прокатывани образца в эксцентриковых захватах нри нагруженин образца .The cargo mechanism with three pointer pulleys and flexible thread is intended to compensate the rolling of the specimen in eccentric grippers when the specimen is loaded.
При нагружении образца 7 раст гивающим усилием нижний захват 2 иеремещаетс вниз и носредством шкива 14 т нет нить 13, вследWhen the sample 7 is loaded with a tensile force, the lower grip 2 moves downward and with the help of a pulley 14 t there is no thread 13, after
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1922557A SU462103A1 (en) | 1973-05-22 | 1973-05-22 | Device for measuring and recording stress and strain during tensile testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1922557A SU462103A1 (en) | 1973-05-22 | 1973-05-22 | Device for measuring and recording stress and strain during tensile testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU462103A1 true SU462103A1 (en) | 1975-02-28 |
Family
ID=20553805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1922557A SU462103A1 (en) | 1973-05-22 | 1973-05-22 | Device for measuring and recording stress and strain during tensile testing |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU462103A1 (en) |
-
1973
- 1973-05-22 SU SU1922557A patent/SU462103A1/en active
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