CN201945536U - Shearing mechanism of magnetorheological material test device - Google Patents
Shearing mechanism of magnetorheological material test device Download PDFInfo
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- CN201945536U CN201945536U CN2011200281986U CN201120028198U CN201945536U CN 201945536 U CN201945536 U CN 201945536U CN 2011200281986 U CN2011200281986 U CN 2011200281986U CN 201120028198 U CN201120028198 U CN 201120028198U CN 201945536 U CN201945536 U CN 201945536U
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- magnetorheological
- set collar
- ring
- shearing
- groove
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Abstract
The utility model discloses a shearing mechanism of a magnetorheological material test device, which comprises a shearing ring and a fixing ring which are coaxially arranged; an circular magnetorheological fluid groove for storing magnetorheological fluid is coaxially arranged on the top surface of the shearing ring, a circular overflow groove is coaxially arranged on the inner ring of the magnetorheological fluid groove, a circular ball groove is coaxially arranged in the inner ring of the overflow groove, and the ball groove is mounted with balls; after the shearing ring is laminated with the fixing ring, a magnetorheological fluid cavity with a closed outer end can be formed in the magnetorheological fluid groove, an overflow cavity communicated with the magnetorheological fluid cavity can formed in the overflow groove, and rolling friction match can be formed between the shearing ring and the fixing ring by the balls. The shearing mechanism solves the problems that the magnetorheological fluid expands while being heated to influence testing results, simultaneously furthest concentrates the shearing stress between the fixing ring and the shearing ring on the magnetorheological fluid, ensures the accuracy of the test results and makes the testing results better.
Description
Technical field
The utility model relates to the technical field of magnetic flow liquid, especially relates to a kind of cutting mechanism of magnetorheological materials testing apparatus.
Background technology
Magnetic flow liquid is a kind of novel intelligent material, it is uniformly distributed in specific molten magnetorheological materials by the micron order ferromagnetic particle is a kind of novel intelligent material, comprise magneto-rheological grease, magnetorheological lastics, magnetic flow liquid etc., wherein the research of magnetic flow liquid and being most widely used.Magnetic flow liquid, be a kind ofly to be uniformly distributed in formed suspended mixture in the specific solvent by the micron order ferromagnetic particle, when no externally-applied magnetic field, rheological characteristics and common Newtonian fluid are similar, but adding strong magnetic field action following time outside can produce magnetic rheology effect (Magnetorheological Effect MRE), be that apparent viscosity can increase several magnitude in Millisecond, present the mechanical property of class solid, and reversible variation takes place with magnetic field in shear stress and viscosity.This is that its suspended magnetic particles is sensed as ferromagnetism because be in strong magnetic field action following time when magnetic flow liquid, and the bridge of formation " chain " shape makes it become stickiness class solid in moment by liquid between magnetic pole.
Magnetic flow liquid by Rabinow since utility model in 1948, existing certain theoretical research and application practice in numerous engineerings fields such as machinery, Aero-Space, oil, civil engineering work.Along with the development of the production practices of science and technology, its application is more and more wider, constantly has the magnetic flow liquid of new formulation to occur.So how the performance of the magnetic flow liquid of new generation is tested, just needs special testing apparatus.
Existed some to be used to detect the technology of magnetorheological fluid performance in the prior art, a kind of magnetorheological polishing solution rheology testing apparatus of being announced such as China utility model patent ZL200810030896.2, it comprises computing machine, support and be fixed in torque-measuring apparatus on the support, field generator for magnetic, cutting mechanism and driving mechanism, torque-measuring apparatus, field generator for magnetic links to each other with computing machine with driving mechanism, the cutting mechanism that is installed in the field generator for magnetic comprises shearing ring and set collar, shearing ring is positioned at the top of set collar, excircle place on shearing ring and the set collar is provided with shearing ring edge and the set collar edge with certain altitude respectively, form the liquid storage groove that is used for storing Magnetorheologicai polishing liquid between shearing ring edge and the set collar edge, the top, shearing ring center that is plate-like is provided with the turning axle that links to each other with driving mechanism, and the below, center of set collar is provided with the coupling shaft that links to each other with torque-measuring apparatus.That this utility model has is simple and compact for structure, with low cost, control convenient, stable testing and precision advantages of higher.
These existing pick-up units can detect the part characteristic of magnetic flow liquid, but can not detect more fully performance of magnetic flow liquid, such as not detecting the influence of temperature to magnetorheological fluid performance.So there is the limited defective of measuring ability.
In order to solve described defective, applicant's autonomous Design a kind of have heat and the magnetorheological materials testing apparatus of temperature testing organization, this testing apparatus can detect the influence of temperature variation to magnetorheological fluid performance, but owing to situation such as may expand after the magnetic flow liquid heating, so still adopt existing cutting mechanism then can impact, reduce accuracy of detection to testing result.So need a kind of new cutting mechanism of design.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model is: how a kind of new cutting mechanism is provided, makes it can reduce magnetorheological materials and add the influence that testing result is caused after the thermal expansion, improve accuracy of detection.
In order to solve the problems of the technologies described above, adopted following technical scheme in the utility model:
A kind of magnetorheological materials testing apparatus cutting mechanism is characterized in that, described cutting mechanism comprises the rotating shaft of concentric setting, shearing ring and the set collar that weak magnetic material makes; Described rotating shaft vertically is arranged on down bush inside by bearing, and the rotating shaft below connects motor by speed reduction unit; Described shearing ring is fixed on the rotating shaft upper end; Described set collar upper surface has an assembling round platform, and assembling round platform sidewall is provided with positioning key; Described shearing ring upper surface concentric is provided with the magnetorheological liquid bath that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath position and the following lining upper end step position that of extending laterally is corresponding, the following circular ring plate that the interlocking of magnetic flow liquid trench bottom has an electrical pure iron to make, magnetorheological liquid bath outer wall height is higher than inwall, concentric is provided with the groove that overflows of an annular within encircling in the magnetorheological liquid bath, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball is installed in the ball grooves; The corresponding described magnetorheological liquid bath of described set collar lower surface is provided with the boss of an annular, and this annular boss obtains last circular ring plate position and last lining lower end position correspondence by the last circular ring plate interlocking of an electrical pure iron material on set collar; After described shearing ring and set collar are fitted, can in magnetorheological liquid bath, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring and set collar form rolling friction simultaneously and cooperate by ball; Described set collar upper surface is provided with the through hole that is communicated with spill cavity.
In the cutting mechanism of the technical program, set up and overflowed groove, and make the spill cavity that overflows the formation of groove place communicate with the external world by through hole, like this, when magnetic flow liquid heated, the partially liq of expansion can flow into and overflow in the groove, and the air pressure that heating produces also can release by through hole, can not impact, make that the testing result precision is higher test.Adopt ball to make that shear stress concentrates on the magnetic flow liquid place more between shearing ring and the set collar simultaneously in the utility model, further improved accuracy of detection.
The applicant has also designed a kind of magnetorheological fluid performance pick-up unit based on this cutting mechanism, and its structure is as follows.
A kind of magnetorheological materials testing apparatus comprises frame, and described frame is provided with:
Field generator for magnetic, described field generator for magnetic comprises magnetic pole and lower magnetic pole, described upward magnetic pole comprises the last lining and the solenoid winding that is positioned at the lining outside of the electrical pure iron manufacturing of vertical setting, described lower magnetic pole comprise vertical setting the electrical pure iron manufacturing following lining and be positioned at the down solenoid winding of lining outside, described lining down upper end has the step that extends laterally; The described solenoid winding of going up lining and last lining outside is fixed on the upper junction plate, and upper junction plate is connected in frame, and the solenoid winding of described lining down and following lining outside is fixed on the lower connecting plate, and lower connecting plate is fixed in frame;
Cutting mechanism, described cutting mechanism comprise the rotating shaft of concentric setting, shearing ring and the set collar that weak magnetic material makes; Described rotating shaft vertically is arranged on down bush inside by bearing, and the rotating shaft below connects motor by speed reduction unit; Described shearing ring is fixed on the rotating shaft upper end; Described set collar upper surface has an assembling round platform, and assembling round platform sidewall is provided with positioning key; Described shearing ring upper surface concentric is provided with the magnetorheological liquid bath that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath position and the following lining upper end step position that of extending laterally is corresponding, the following circular ring plate that the interlocking of magnetic flow liquid trench bottom has an electrical pure iron to make, magnetorheological liquid bath outer wall height is higher than inwall, concentric is provided with the groove that overflows of an annular within encircling in the magnetorheological liquid bath, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball is installed in the ball grooves; The corresponding described magnetorheological liquid bath of described set collar lower surface is provided with the boss of an annular, and this annular boss obtains last circular ring plate position and last lining lower end position correspondence by the last circular ring plate interlocking of an electrical pure iron material on set collar; After described shearing ring and set collar are fitted, can in magnetorheological liquid bath, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring and set collar form rolling friction simultaneously and cooperate by ball; Described set collar upper surface is provided with the through hole that is communicated with spill cavity;
Shear stress testing agency, comprise a power transmission tube that is arranged on bush inside, power transmission tube inwall lower end is provided with keyway, the assembling round platform of described set collar upper surface can be pegged graft, and the power transmission tube is inner also to make the positioning key on the assembling round platform be engaged in slidably in the keyway of power transmission tube inside, power transmission tube upper end is fixed on the upper junction plate, the power transmission drum outer wall is provided with the step of an indent, and the step of this indent is provided with shear stress sensor;
Heat and temperature testing organization, comprise electric heater unit that is positioned at the set collar upper surface and the temp probe that is arranged at set collar upper surface through hole;
Elevating mechanism comprises vertically being fixedly set in the field generator for magnetic vertical rod of several location and the 3rd web joint that is fixedly connected on the upper junction plate top all around that described upper junction plate and the 3rd web joint are socketed in the vertical rod of described location slidably; Elevating mechanism also comprises a vertical screw rod that is provided with, the screw rod middle part is engaged on the frame by screw thread rotationally, the screw rod lower ends downward is passed the 3rd web joint and is provided with a Support tray, be provided with a circle ball between Support tray and the 3rd web joint and realize the supporting and the rolling friction of the 3rd web joint are cooperated, be horizontally arranged with handle on the screw rod by ball;
Control system, described control system comprise computer controlling center and the described motor that is connected with computer controlling center, solenoid winding, shear stress sensor, electric heater unit and temp probe.
Above-mentioned testing apparatus, when it uses magnetic flow liquid to be detected is put into the magnetorheological liquid bath of shearing ring, set collar closes, pressing down the assembling round platform that makes set collar by the last magnetic pole of elevating mechanism control is fitted in the power transmission tube, starter motor drives shearing ring and rotates, making that shearing ring is relative with set collar rotates, and begins then to detect.During detection, can control motor speed by control system and regulate the shearing strain rate, detect actual shear stress by shear stress sensor simultaneously; Regulate temperature by electric heater unit, detect the magnetic flow liquid actual temperature by temp probe simultaneously; By control solenoid winding current size controlling magnetic field intensity; Can detect and calculate the linear relationship between the shear stress of magnetic flow liquid and temperature, shearing strain rate, the magnetic field intensity three like this, obtain the characteristic of magnetic flow liquid to be detected.Wherein, because the solenoid winding produces between magnetic field and the solenoid winding current strict corresponding relationship is arranged, also there is strict corresponding relationship between current of electric and the shearing ring rotating speed, event can detect this corresponding relation earlier and be preset in by program in the computer controlling center of control system, directly regulate solenoid winding magnetic field size during testing apparatus work by control solenoid winding current, control the shearing ring rotating speed by the control current of electric, need not to be provided with again separately magnetic field detection mechanism and rotary speed tester structure, and variation of temperature is subjected to external influence easily, detect the magnetic flow liquid actual temperature so temp probe need be set, make the degree of accuracy of final measurement to be guaranteed.
In this testing apparatus, frame can be set to tower structure, is used to support all the other members.The last lining of the manufacturing of electrical pure iron described in the field generator for magnetic and following lining can be guided to the middle part with the magnetic field concentration that solenoid produces, increase and be positioned at the shearing ring of magnetic pole and lower magnetic pole medium position and the magnetic flux of set collar position, particularly descend the lining upper end to have a step that outwards extends, the corresponding position, magnetorheological sap cavity position that this step obtains after extending into and closing up with shearing ring and set collar, going up simultaneously the lining lower end position also is and magnetorheological sap cavity position correspondence, so can further make the magnetic flux at magnetorheological sap cavity place reach maximum, the coil current that can use less coil like this and reduce produces the bigger required magnetic flux of test, has reduced the device implementation cost indirectly.In the field generator for magnetic, described lower connecting plate is directly to be fixed on the frame, and upper junction plate is the cooperation frame activity relatively by elevating mechanism then.In the described cutting mechanism, motor connects by speed reduction unit and drives the shearing ring rotation, provides shearing power also can adjust the shearing strain rate by the control motor.Wherein said shearing ring is meant that when test is by this shearing ring rotation and shearing force is provided, but actual shearing ring is fixedly to be assemblied on the lower magnetic pole, described set collar is meant that when test this set collar upwards maintained static in week, but actual this set collar is limited and be not fixed; Shearing ring and set collar adopt weak magnetic material to make, and preferably adopt brass, but also can adopt other weak magnetic materials.Following circular ring plate that the electrical pure iron that is provided with in the described cutting mechanism makes and last circular ring plate also can reach the effect of the magnetorheological sap cavity of further increase position magnetic flux, can adopt press to push by force when specifically implementing it is rabbeted into.The spill cavity that overflows groove formation that is provided with can play following effect, and the one, reduce the frictional plane between set collar and the shearing ring, make that the pivoting friction shearing force between set collar and the shearing ring concentrates on the magnetic flow liquid as far as possible, make testing result accurate; The 2nd, owing to be provided with electric heater unit in this testing apparatus, when probe temperature influences magnetic flow liquid, after being heated, magnetic flow liquid may produce expansion, the magnetic flow liquid that overflows that expands like this can enter in the spill cavity, avoids experimental result is exerted an influence.The 3rd is that the set collar upper surface of spill cavity correspondence is provided with the through hole that is communicated with spill cavity, be arranged on like this that the heat of electric heater unit of set collar upper surface is easier to be delivered in the magnetic flow liquid in the spill cavity by through hole, because spill cavity is communicated with setting with magnetorheological sap cavity, so magnetic flow liquid temperature basically identical at two places, can detect the temperature of magnetic flow liquid by the temp probe that in through hole, is provided with, make things convenient for temperature detection to make that simultaneously temperature detection result is more accurate.Owing to shearing ring when testing produces rotation,, can in the through hole of spill cavity, not run out of simultaneously so magnetic flow liquid can be subjected to certain centrifugal action.Magnetorheological liquid bath outer wall height is higher than inwall, can strengthen the sealing effect that stops to magnetic flow liquid, avoids magnetic flow liquid to run out of from the slit in the magnetorheological sap cavity outside under centrifugal action.Ball grooves that is provided with and ball also can further reduce friction, make that the rotational shear friction between shearing ring and the set collar mainly concentrates on the magnetic flow liquid place, improve detection accuracy.In the described shear stress testing agency, carry out the transmission of shearing force by the power transmission tube, power transmission tube upper end is fixed on the upper junction plate, the lower end is slidingly matched and carry-over moment by the positioning key of keyway and set collar assembling round platform, on the step of power transmission drum outer wall indent shear stress sensor is set shear stress is detected.Described shear stress sensor can adopt the mode of half-bridge paster or adopt other forms of shear stress sensor in the prior art, owing to belong to the prior art content, so not at this detailed description.Described heat and temperature testing organization in, electric heater unit specifically can adopt the structure around the resistance wire heating that forms, wherein electric heater unit and temp probe all belong to existing mature technology content, the place that the utility model is made contributions for prior art is electric heater unit and temp probe are used for this position, make this testing apparatus can detect the influence of temperature to magnetorheological fluid performance, and do not lie in the structure of electric heater unit and temp probe self, so not at this detailed description.The setting of described elevating mechanism, can carry out lifting to last magnetic pole, make things convenient for the installation and removal of set collar, make things convenient for the replacing of magnetic flow liquid, simultaneously, owing to be being slidingly matched of key and keyway between the power transmission tube in set collar and the last magnetic pole, so when testing, can also go up at certain altitude (certain altitude digital and keyway cooperate in the length range of section) last position of magnetic pole is adjusted, detect the performance change of magnetic flow liquid when the different magnetic field position.During elevating mechanism work, rotary handle drives screw rod and moves upward, can drive the 3rd web joint and then drive upper junction plate and last magnetic pole by Support tray and move upward, when rotary handle drive screw rod moved downward, upper junction plate and last magnetic pole can move downward under the deadweight effect.The location vertical rod is used for guiding, and magnetic pole and lower magnetic pole are aimed in the assurance.This elevating mechanism self also has simple in structure, rapid operation, Purely mechanical structure and advantages such as low price.In the described control system, described computer controlling center is an integrated upperseat concept, computer controlling center is integrated with required temperature control function, digital display regulatory function, the motor frequency conversion function of control test, magnetic field and changes of magnetic field gradient control function, shaft coupling rotating speed control function, or the like, the common practise content that these all belong to the electrical control field does not belong to the place that the application makes contributions to prior art, so not at this detailed description.
In sum, cutting mechanism of the present utility model has solved the magnetic flow liquid expanded by heating to detecting the problem that effect exerts an influence, and farthest makes shear stress concentration between set collar and the shearing ring at the magnetic flow liquid place simultaneously, guaranteed the accurate of testing result, made and detect better effects if.Adopted the magnetorheological materials testing apparatus of the utility model cutting mechanism simultaneously, owing to set up and heated and temperature testing organization, so than existing testing apparatus, can test out the influence of temperature to magnetorheological fluid performance, because three factors (temperature, magnetic field intensity and shearing strain rate) that influence magnetic flow liquid all can be controlled, so the performance parameter of detected magnetic flow liquid more all sidedly.
Description of drawings
Fig. 1 is the structural representation that has adopted a kind of magnetorheological materials testing apparatus of the utility model structure.
Fig. 2 is a structural representation of going up the magnetic pole place among Fig. 1 separately.
Fig. 3 is the structural representation at independent lower magnetic pole place among Fig. 1.
Fig. 4 is the structural representation after independent set collar and shearing ring are worked good among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and a kind of magnetorheological materials testing apparatus of the utility model structure that adopted the utility model structure is described in further detail.
A kind of magnetorheological materials testing apparatus that adopts the utility model structure, its structure comprises frame 1 as shown in Figures 1 to 4, described frame 1 is provided with:
Field generator for magnetic, described field generator for magnetic comprises magnetic pole and lower magnetic pole, described upward magnetic pole comprises the last lining 2 and the solenoid winding 3 that is positioned at the lining outside of the electrical pure iron manufacturing of vertical setting, described lower magnetic pole comprises the following lining 4 and the solenoid winding 5 that is positioned at following lining outside of the electrical pure iron manufacturing of vertical setting, and described lining 4 upper ends down have the step that extends laterally; The described solenoid winding 3 of going up lining 2 and last lining outside is fixed on the upper junction plate 6, and upper junction plate 6 is connected in frame 1, and the solenoid winding 5 of described lining 4 down and following lining outside is fixed on the lower connecting plate 7, and lower connecting plate 7 is fixed in frame 1; During enforcement, described each solenoid winding comprises lattice coil that the adjacent successively solderless wrapped connection side by side of enameled wire obtains of employing, adopts insulating paper to separate between every layer line circle, and solenoid winding external packets is wrapped with insulating paper;
Cutting mechanism of the present utility model, described cutting mechanism comprise the rotating shaft 8 of concentric setting, shearing ring 9 and the set collar 10 that weak magnetic material makes; Described rotating shaft 8 vertically is arranged on down lining 4 inside by bearing 11, and rotating shaft 8 belows connect motor 13 by speed reduction unit 12; Described shearing ring 9 is fixed on rotating shaft 8 upper ends; Described set collar 10 upper surfaces have an assembling round platform 14, and assembling round platform 14 sidewalls are provided with positioning key 15; Described shearing ring 9 upper surface concentrics are provided with the magnetorheological liquid bath 16 that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath 16 positions and the following lining 2 upper ends step position that of extending laterally is corresponding, the following circular ring plate 17 that the interlocking of magnetorheological liquid bath 16 bottoms has an electrical pure iron to make, magnetorheological liquid bath 16 outer wall height are higher than inwall, what concentric was provided with an annular within the ring in the magnetorheological liquid bath 16 overflows groove 18, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball 19 is installed in the ball grooves; The corresponding described magnetorheological liquid bath 16 of described set collar 10 lower surfaces is provided with the boss of an annular, and this annular boss obtains last circular ring plate 20 positions and last lining 2 lower end position correspondences by last circular ring plate 20 interlockings of an electrical pure iron material on set collar 10; After described shearing ring 9 and set collar 10 are fitted, can in magnetorheological liquid bath 16, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove 18, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring 9 and set collar 10 form rolling friction simultaneously and cooperate (all the other binding faces of shearing ring and set collar stay the gap about 0.5mm when specifically implementing) by ball 19; Described set collar 10 upper surfaces are provided with the through hole 22 that is communicated with spill cavity;
Shear stress testing agency, comprise a power transmission tube 23 that is arranged on lining 2 inside, power transmission tube 23 inwall lower ends are provided with keyway 24, can peg graft power transmission tube 23 of the assembling round platform 14 of described set collar 10 upper surfaces is inner and make the positioning keys 15 on the assembling round platforms 14 be engaged in slidably in the keyway 24 of power transmission tube 23 inside, power transmission tube 23 upper ends are fixed on the upper junction plate 6, power transmission tube 23 outer walls are provided with the step of an indent, and the step of this indent is provided with shear stress sensor 25;
Heat and temperature testing organization, comprise electric heater unit 26 that is positioned at set collar 10 upper surfaces and the temp probe 27 that is arranged at set collar 10 upper surface through holes 22;
Elevating mechanism, comprise vertically being fixedly set in field generator for magnetic several location vertical rod 28 and the 3rd web joint 34 that is fixedly connected on upper junction plate 6 tops all around, described upper junction plate 6 and the 3rd web joint 34 are socketed in the described location vertical rod 28 slidably; Elevating mechanism also comprises a vertical screw rod 29 that is provided with, screw rod 29 middle parts are engaged on the frame 1 rotationally by screw thread, screw rod 29 lower ends downward are passed the 3rd web joint 34 and are provided with a Support tray 30, be provided with a circle ball 31 between Support tray 30 and the 3rd web joint 34 and realize the supporting and the rolling friction of the 3rd web joint 34 are cooperated by ball 31, screw rod 29 upper ends are horizontally arranged with handle 32; Location vertical rod 28 upper ends of described elevating mechanism are the cone segments of point upward, and vertical rod 28 lower ends, location are cylindrical section;
Control system, described control system comprise computer controlling center 33 and the described motor 13 that is connected with computer controlling center 33, solenoid winding, shear stress sensor 25, electric heater unit 26 and temp probe 27.
Claims (1)
1. a magnetorheological materials testing apparatus cutting mechanism is characterized in that, described cutting mechanism comprises the rotating shaft of concentric setting, shearing ring and the set collar that weak magnetic material makes; Described rotating shaft vertically is arranged on down bush inside by bearing, and the rotating shaft below connects motor by speed reduction unit; Described shearing ring is fixed on the rotating shaft upper end; Described set collar upper surface has an assembling round platform, and assembling round platform sidewall is provided with positioning key; Described shearing ring upper surface concentric is provided with the magnetorheological liquid bath that is used to hold magnetic flow liquid of an annular, magnetorheological liquid bath position and the following lining upper end step position that of extending laterally is corresponding, the following circular ring plate that the interlocking of magnetic flow liquid trench bottom has an electrical pure iron to make, magnetorheological liquid bath outer wall height is higher than inwall, concentric is provided with the groove that overflows of an annular within encircling in the magnetorheological liquid bath, overflow in the groove ball grooves that concentric within the ring is provided with an annular, ball is installed in the ball grooves; The corresponding described magnetorheological liquid bath of described set collar lower surface is provided with the boss of an annular, and this annular boss obtains last circular ring plate position and last lining lower end position correspondence by the last circular ring plate interlocking of an electrical pure iron material on set collar; After described shearing ring and set collar are fitted, can in magnetorheological liquid bath, form the magnetorheological sap cavity of an outer end sealing, in overflowing groove, form a spill cavity that is communicated with magnetorheological sap cavity, can make shearing ring and set collar form rolling friction simultaneously and cooperate by ball; Described set collar upper surface is provided with the through hole that is communicated with spill cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200281986U CN201945536U (en) | 2011-01-27 | 2011-01-27 | Shearing mechanism of magnetorheological material test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200281986U CN201945536U (en) | 2011-01-27 | 2011-01-27 | Shearing mechanism of magnetorheological material test device |
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| Publication Number | Publication Date |
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| CN201945536U true CN201945536U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200281986U Expired - Fee Related CN201945536U (en) | 2011-01-27 | 2011-01-27 | Shearing mechanism of magnetorheological material test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539288A (en) * | 2012-01-19 | 2012-07-04 | 中国矿业大学 | Double-coil type magnetorheological fluid rheological characteristic testing device |
| CN104133183A (en) * | 2014-03-09 | 2014-11-05 | 浙江师范大学 | Magnetic field intensity measuring instrument based on magnetorheological fluid |
| CN108871976A (en) * | 2018-04-10 | 2018-11-23 | 南京理工大学 | A kind of shearing performance test device of magnetic rheology elastic body |
-
2011
- 2011-01-27 CN CN2011200281986U patent/CN201945536U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539288A (en) * | 2012-01-19 | 2012-07-04 | 中国矿业大学 | Double-coil type magnetorheological fluid rheological characteristic testing device |
| CN102539288B (en) * | 2012-01-19 | 2014-07-23 | 中国矿业大学 | Double-coil type magnetorheological fluid rheological characteristic testing device |
| CN104133183A (en) * | 2014-03-09 | 2014-11-05 | 浙江师范大学 | Magnetic field intensity measuring instrument based on magnetorheological fluid |
| CN104133183B (en) * | 2014-03-09 | 2017-01-18 | 浙江师范大学 | Magnetic field intensity measuring instrument based on magnetorheological fluid |
| CN108871976A (en) * | 2018-04-10 | 2018-11-23 | 南京理工大学 | A kind of shearing performance test device of magnetic rheology elastic body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20120127 |