CN102879174A - Magneto-rheological fluid yield stress test method and device - Google Patents
Magneto-rheological fluid yield stress test method and device Download PDFInfo
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- CN102879174A CN102879174A CN201210314635XA CN201210314635A CN102879174A CN 102879174 A CN102879174 A CN 102879174A CN 201210314635X A CN201210314635X A CN 201210314635XA CN 201210314635 A CN201210314635 A CN 201210314635A CN 102879174 A CN102879174 A CN 102879174A
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Abstract
The invention discloses a magneto-rheological fluid yield stress test device comprises a motor, a supporting plate, a first coupler, a second coupler, an excitation coil, an upper pressing plate, a lower pressing plate, an upper disk, a lower disk, a non-rotary torsion sensor, a framework and a partition plate, wherein the motor is arranged on the supporting plate; one end of the first coupler is connected with the output shaft of the motor, and the other end of the first coupler is connected with one end of a first shaft; the other end of the first shaft is connected with the upper disk; the upper end of a second shaft is welded with the lower disk to form a whole; the lower end of the second shaft is connected with one end of the second coupler; the other end of the second coupler is connected with the non-rotary torsion sensor through a third shaft; the non-rotary torsion sensor is fixed on the framework; the partition plate is respectively connected with the upper pressing plate and the lower pressing plate; the lower pressing plate is connected with a carrying plate; and the carrying plate is welded to the framework.
Description
Technical field
The present invention relates to a kind of proving installation and method thereof, refer in particular to a kind of magnetic flow liquid yield stress proving installation and method thereof, be applicable to the test of magnetic flow liquid yield stress.
Background technology
Magnetic flow liquid is a kind of novel intelligent material with development prospect and engineering using value, mainly reaching the adjuvant that is coated on particle surface in order to prevent particles settling by soft magnetic particles, base load liquid forms, without externally-applied magnetic field the time, show as free-flowing, adding under the magnetic fields, rheological characteristics occurs sharply to change, become semisolid, have continuous, reversible, rapid and be easy to the advantages such as control, therefore, obtained using more and more widely in association areas such as machinery, automobile, Aero-Space.
The yield stress of magnetic flow liquid is the separation that magnetic flow liquid solid-liquid performance transforms, correct test yield stress is the key of carrying out the research of magnetic flow liquid mechanism and using, the yield stress of therefore, accurately testing magnetic flow liquid has important practical significance to the performance study of magnetic flow liquid and the design research and development of components and parts thereof.
Therefore, be badly in need of a kind of magnetic flow liquid yield stress method of testing of exploitation and device thereof.
Summary of the invention
The objective of the invention is to overcome magnetic flow liquid yield stress test hard problem, a kind of simple in structure, easy to operate, the magnetic flow liquid yield stress proving installation and the method thereof that are easy to measure are provided.
The invention provides following a kind of technical scheme: a kind of magnetic flow liquid yield stress proving installation, it includes: motor, back up pad, the first shaft coupling and the second shaft coupling, field coil, top board, lower platen, upper disk, lower disc, non-rotating torque sensor, framework and dividing plate, it is characterized in that: described motor is installed on the back up pad, one end of the first shaft coupling is connected with motor output shaft, the other end is connected with an end of the first axle, the other end of the first axle is connected with upper disk, the second axle upper end is welding as one with lower disc, the second axle lower end is connected with the second shaft coupling one end, the other end of the second shaft coupling is connected with non-rotating torque sensor by the 3rd axle, described non-rotating torque sensor is fixed on the framework, described dividing plate is connected with lower platen with described top board respectively, described lower platen is connected with supporting plate, and described supporting plate is welded on the framework.
Aforesaid magnetic flow liquid yield stress proving installation is characterized in that: the outer field coil that is arranged with of described dividing plate.
Aforesaid magnetic flow liquid yield stress proving installation is characterized in that: between described the first axle and the top board thrust bearing is housed.
Aforesaid magnetic flow liquid yield stress proving installation is characterized in that: described magnetic flow liquid yield stress proving installation also includes the back-up ring that is arranged between described dividing plate and the upper disk.
Aforesaid magnetic flow liquid yield stress proving installation, it is characterized in that: described lower disc is nested in the dividing plate, is provided with O-ring seal in it, is formed with a cavity between described upper disk and the lower disc.
The method of testing of aforesaid magnetic flow liquid yield stress proving installation, it includes following steps:
Adopt the magnetic field intensity between the upper disk of gaussmeter measurement and the lower disc;
Adopt non-rotating torque sensor to measure the moment of torsion that transmits,
When setting yield stress be
, moment of torsion is
, the diameter of disk is
The time, pass through formula
Obtain the value of magnetic flow liquid yield stress.
Beneficial effect of the present invention: upper disk links to each other with motor, under the effect of motor, rotate, lower disc links to each other with non-rotating torque sensor, maintain static, non-rotating torque sensor can be measured under certain rotating speed, the moment of torsion that magnetic flow liquid transmits between upper disk and the lower disc, by calculating the yield stress of magnetic flow liquid, the present invention is simple in structure, easy to operate, yield stress is easy to measure, accuracy is high, have widely practicality.
Description of drawings
Fig. 1 is magnetic flow liquid yield stress proving installation wiring layout of the present invention.
Wherein: 1. motor, 2. back up pad, 3. the first shaft coupling, 4. top board, 5,8,10. screw, 6. field coil, 7. lower platen, 9. supporting plate, 11. the second shaft coupling, 12. non-rotating torque sensors, 13. frameworks, 14. bolts, 15,17. thrust bearings, 16. first axles, 18. back-up rings, 19. upper disk, 20. dividing plates, 21. O-ring seals, 22. lower disc, 23. second axles, 24. the 3rd axles.
Embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Fig. 1 is magnetic flow liquid yield stress proving installation wiring layout of the present invention, magnetic flow liquid yield stress proving installation mainly comprises motor 1, back up pad 2, the first shaft coupling 3 and the second shaft coupling 11, field coil 6, top board 4, lower platen 7, upper disk 19, lower disc 22, non-rotating torque sensor 12, framework 13, dividing plate 20 etc.; Motor 1 is installed on the back up pad 2 by bolt 14, and the first shaft coupling 3 one ends link to each other with motor 1 output shaft, and the other end links to each other with axle the first axle 16, and the first axle 16 lower ends are connected with upper disk 19 by screw thread; The second axle 23 upper ends and lower disc 22 are welding as one, the lower end links to each other with the second axle shaft coupling 11, the lower end of the second axle 11 shaft couplings is connected with non-rotating torque sensor 12 by the 3rd axle 24, non-rotating torque sensor 12 is fixed on the framework 13, dividing plate 20 outsides are provided with field coil 6, are connected with being connected respectively to be connected with lower platen with top board 4 by screw 5; Lower platen 7 is connected with supporting plate 9 by screw 8, and supporting plate 9 is welded on the framework 13.
Between described the first axle 16 and the top board 4 thrust bearing 15 and 17 are housed, between dividing plate 20 and the upper disk 19 back-up ring 18 is housed, lower disc 22 is nested in the dividing plate 20, is provided with O-ring seal 21 therebetween, form certain cavity between upper disk 19 and the lower disc 22, be used for holding magnetic flow liquid.
The material of top board 4, lower platen 7, supporting plate 9, upper disk 19, lower disc 22, dividing plate 20 is the mild carbon steel of high magnetic permeability among the present invention.
Magnetic flow liquid yield stress method of testing of the present invention: adopt the magnetic field intensity between the upper disk 19 of gaussmeter measurement and the lower disc 22, adopt non-rotating torque sensor 12 to measure the moment of torsion that transmits, can obtain the size of magnetic flow liquid yield stress by formula (1).
In the formula,
Be yield stress;
Be moment of torsion;
Diameter for disk.
Claims (6)
1. magnetic flow liquid yield stress proving installation, it includes: motor (1), back up pad (2), the first shaft coupling (3) and the second shaft coupling (11), field coil (6), top board (4), lower platen (7), upper disk (19), lower disc (22), non-rotating torque sensor (12), framework (13) and dividing plate (20), it is characterized in that: described motor (1) is installed on the back up pad (2), one end of the first shaft coupling (3) is connected with motor (1) output shaft, the other end is connected with an end of the first axle (16), the other end of the first axle (16) is connected with upper disk (19), the second axle (23) upper end is welding as one with lower disc (22), the second axle (23) lower end is connected with the second shaft coupling (11) one ends, the other end of the second shaft coupling (11) is connected with non-rotating torque sensor (12) by the 3rd axle (24), described non-rotating torque sensor (12) is fixed on the framework (13), described dividing plate (20) is connected 7 with described top board (4) with lower platen respectively) be connected, described lower platen (7) is connected with supporting plate (9), and described supporting plate (9) is welded on the framework (13).
2. magnetic flow liquid yield stress proving installation according to claim 1 is characterized in that: the outer field coil (6) that is arranged with of described dividing plate (20).
3. magnetic flow liquid yield stress proving installation according to claim 2 is characterized in that: between described the first axle (16) and the top board (4) thrust bearing (15,17) is housed.
4. magnetic flow liquid yield stress proving installation according to claim 3, it is characterized in that: described magnetic flow liquid yield stress proving installation also includes the back-up ring (18) that is arranged between described dividing plate (20) and the upper disk (19).
5. magnetic flow liquid yield stress proving installation according to claim 3, it is characterized in that: described lower disc (22) is nested in the dividing plate (20), be provided with O-ring seal (21) in it, be formed with a cavity between described upper disk (19) and the lower disc (22).
6. magnetic flow liquid yield stress method of testing as claimed in claim 1, it includes following steps:
Adopt the magnetic field intensity between the upper disk (19) of gaussmeter measurement and the lower disc (22);
Adopt non-rotating torque sensor (12) to measure the moment of torsion that transmits,
When setting yield stress be
, moment of torsion is
, the diameter of disk is
The time, pass through formula
Obtain the value of magnetic flow liquid yield stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314635.XA CN102879174B (en) | 2012-08-30 | 2012-08-30 | Magnetic flow liquid yield stress method of testing and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210314635.XA CN102879174B (en) | 2012-08-30 | 2012-08-30 | Magnetic flow liquid yield stress method of testing and device thereof |
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| Publication Number | Publication Date |
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| CN102879174A true CN102879174A (en) | 2013-01-16 |
| CN102879174B CN102879174B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210314635.XA Expired - Fee Related CN102879174B (en) | 2012-08-30 | 2012-08-30 | Magnetic flow liquid yield stress method of testing and device thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582150A (en) * | 2018-06-12 | 2018-09-28 | 浙江工业大学 | A kind of submissive joint of composite excitation formula robot based on magnetorheological fluid |
| CN108620911A (en) * | 2018-05-02 | 2018-10-09 | 大连理工大学 | A kind of servo-actuated method for supporting of magnetorheological fluid |
| CN114166646A (en) * | 2021-11-26 | 2022-03-11 | 武汉理工大学 | Testing device and testing method for creep and relaxation characteristics of magnetorheological elastomer under wide magnetic field |
| KR102549970B1 (en) * | 2022-06-07 | 2023-07-03 | 주식회사 씨케이머티리얼즈랩 | Evaluation method of Magneto-Rheological Rotating Load Device |
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| CN1388366A (en) * | 2001-05-25 | 2003-01-01 | 中国科学技术大学 | Test system for rheological characteristics of magnetic rheological liquid |
| CN102128770A (en) * | 2010-12-22 | 2011-07-20 | 宁波大学 | Device for testing rheological properties of magnetorheological fluid |
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| CN201974285U (en) * | 2011-03-17 | 2011-09-14 | 哈尔滨工程大学 | Test device for testing fluid friction resistance |
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2012
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| CN1388366A (en) * | 2001-05-25 | 2003-01-01 | 中国科学技术大学 | Test system for rheological characteristics of magnetic rheological liquid |
| US20110181405A1 (en) * | 2008-04-29 | 2011-07-28 | Comm. A L'ener. Atom. Et Aux Energies Alt. | Force feedback interface with improved sensation |
| CN102128770A (en) * | 2010-12-22 | 2011-07-20 | 宁波大学 | Device for testing rheological properties of magnetorheological fluid |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620911A (en) * | 2018-05-02 | 2018-10-09 | 大连理工大学 | A kind of servo-actuated method for supporting of magnetorheological fluid |
| CN108620911B (en) * | 2018-05-02 | 2020-04-28 | 大连理工大学 | Magnetorheological fluid follow-up supporting method |
| CN108582150A (en) * | 2018-06-12 | 2018-09-28 | 浙江工业大学 | A kind of submissive joint of composite excitation formula robot based on magnetorheological fluid |
| CN114166646A (en) * | 2021-11-26 | 2022-03-11 | 武汉理工大学 | Testing device and testing method for creep and relaxation characteristics of magnetorheological elastomer under wide magnetic field |
| KR102549970B1 (en) * | 2022-06-07 | 2023-07-03 | 주식회사 씨케이머티리얼즈랩 | Evaluation method of Magneto-Rheological Rotating Load Device |
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| CN102879174B (en) | 2015-08-26 |
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Application publication date: 20130116 Assignee: Suzhou Derui precision Electromechanical Technology Co. Ltd. Assignor: Jiangsu University Contract record no.: 2018320000105 Denomination of invention: Magneto-rheological fluid yield stress test method and device Granted publication date: 20150826 License type: Exclusive License Record date: 20180510 |
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