SU855442A1 - Instrument for determining loose material friction coefficient - Google Patents
Instrument for determining loose material friction coefficient Download PDFInfo
- Publication number
- SU855442A1 SU855442A1 SU782676609A SU2676609A SU855442A1 SU 855442 A1 SU855442 A1 SU 855442A1 SU 782676609 A SU782676609 A SU 782676609A SU 2676609 A SU2676609 A SU 2676609A SU 855442 A1 SU855442 A1 SU 855442A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- friction
- holder
- coefficient
- counter piece
- drive
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
(54) ПРИБОР ДЛЯ ОПРЕДЕЛЕНИЯ КОЭФФИЦИЕНТА ТРЕНИЯ СЫПУЧИХ МАТЕРИАЛОВ(54) DEVICE FOR DETERMINATION OF THE FRIEND COEFFICIENT OF BULK MATERIALS
II
Изобретение относитс к измерительной технике дл определени коэффициента трени сыпучих материалов при их взаимодействии с твердыми поверхност ми.The invention relates to a measurement technique for determining the coefficient of friction of bulk materials when they interact with solid surfaces.
Известен прибор дл определени коэффициента трени сыпучих материалов, содержащий корпус, обойму дл испытуемого материала, привод вращени контробразца, нагружающее устройство, включающее грузы и св занный с обоймой подвижный в осевом направлении элемент, и тензометри-. ческий силоизмерительСП.A device for determining the coefficient of friction of bulk materials is known, comprising a housing, a holder for a test material, a drive for rotating a counter piece, a loading device including weights and an axially movable element associated with the holder, and strain gauges. CI force measuring device.
Недостатком данного прибора вл етс то, что он не обеспечивает достаточно высокую точность определени коэффициента трени . Это обусловлено тем, что при жестком креплении обоймы исследуемый сыпучий материал защемл етс между кра ми обоймы и поверхностью контробразца, что приводит к повыщению коэффициента трени .The disadvantage of this device is that it does not provide a sufficiently high accuracy of determining the coefficient of friction. This is due to the fact that when the holder is rigidly fastened, the bulk material under examination is pinched between the edges of the holder and the surface of the counter sample, which leads to an increase in the coefficient of friction.
Цель изобретени - повышение точностиThe purpose of the invention is to improve the accuracy
Поставленна цель достигаетс тем, что элемент выполнен в виде упругой подвески.The goal is achieved by the fact that the element is designed as an elastic suspension.
На чертеже схематически изображен предлагаемый прибор.The drawing shows schematically the proposed device.
Прибор содержит корпус 1, цилиндрическую обойму 2, привод 3, нагружающее устройство , включающее в себ грузы 4, упругую подвеску б с винтовой парой 6 и 7, тензометрический силоизмеритель, состолf щий из штока 8, рычага 9, преобразовател 10 усилий, усилител П и регистрирующего прибора 12.The device includes a housing 1, a cylindrical yoke 2, a drive 3, a loading device including weights 4, an elastic suspension b with a screw pair 6 and 7, a strain gauge load gauge consisting of a rod 8, a lever 9, a force converter 10, an amplifier P and recording device 12.
Прибор работает следующим образом. Исследуемый материал 13 засыпаютThe device works as follows. The test material 13 fall asleep
10 в обойму 2, установленную над контробразцом 14, закрепленном на валу привода 3. При помощи винтовой пары 6 и 7, упругой подвески 5 обойму 2 устанавливают с заданным зазором П между поверхностью контробразца 14 и нижними заостренными10 into the holder 2, mounted above the counterpiece 14, mounted on the drive shaft 3. Using a screw pair 6 and 7, the elastic suspension 5, the holder 2 is installed with a predetermined gap P between the surface of the counterpiece 14 and the lower pointed ones
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782676609A SU855442A1 (en) | 1978-10-23 | 1978-10-23 | Instrument for determining loose material friction coefficient |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU782676609A SU855442A1 (en) | 1978-10-23 | 1978-10-23 | Instrument for determining loose material friction coefficient |
Publications (1)
Publication Number | Publication Date |
---|---|
SU855442A1 true SU855442A1 (en) | 1981-08-15 |
Family
ID=20790336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU782676609A SU855442A1 (en) | 1978-10-23 | 1978-10-23 | Instrument for determining loose material friction coefficient |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU855442A1 (en) |
-
1978
- 1978-10-23 SU SU782676609A patent/SU855442A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107101936A (en) | A kind of device and method for determining coefficient of friction | |
SU855442A1 (en) | Instrument for determining loose material friction coefficient | |
SU991252A1 (en) | Device for determination of adhesion bond shear-strength | |
JPH0126017B2 (en) | ||
SU735960A1 (en) | Device for measuring dynamic elasticity modulus of material specimen | |
US3210992A (en) | Ultrasensitive force and speed measuring device | |
JPS5646473A (en) | Measuring device for complex piezoelectric property of solid material | |
SU932202A1 (en) | Meter of linear dimensions with constant measuring force | |
Voisey et al. | An electronic recording Amylograph | |
SU456162A1 (en) | Torque measuring device | |
RU2073846C1 (en) | Device for friction and wear testing of materials | |
US1694187A (en) | Testing instrument | |
SU838474A1 (en) | Torque loading device | |
SU1206606A1 (en) | Arrangement for calibrating displacement transducers | |
SU82274A1 (en) | Method for determining microhardness of various materials and coatings | |
SU750351A1 (en) | Device for investigating friction of round bodies | |
SU503161A1 (en) | Installation for testing materials in cantilever bending | |
SU697876A1 (en) | Device for determining the coefficient of friction of rest | |
SU1137400A1 (en) | Acceleration meter conversion factor determination method | |
SU761832A1 (en) | Method of measuring linear dimension of articles with flexible-material surface layer and apparatus for realizing same | |
SU393573A1 (en) | DEVICE FOR MEASURING LINEAR AND ANGULAR SIZES | |
SU433369A1 (en) | DEVICE FOR CHECKING BELT TENSION | |
SU859804A1 (en) | Apparatus for measuring linear displacements | |
SU939930A1 (en) | Device for measuring article plastic deformation | |
SU729467A1 (en) | Device for measuring friction forces in sliding-surface bearing |