CN106090066B - Magnetic rheological clutch, adjusting method and the water pump that a kind of variable speed is adjusted - Google Patents
Magnetic rheological clutch, adjusting method and the water pump that a kind of variable speed is adjusted Download PDFInfo
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- CN106090066B CN106090066B CN201610708144.1A CN201610708144A CN106090066B CN 106090066 B CN106090066 B CN 106090066B CN 201610708144 A CN201610708144 A CN 201610708144A CN 106090066 B CN106090066 B CN 106090066B
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- load
- output shaft
- magnetorheological fluid
- magnetic
- liquid storage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
- F16D37/008—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being carried by a fluid, to vary viscosity when subjected to electric change, i.e. electro-rheological or smart fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
Abstract
The invention discloses a kind of magnetic rheological clutch of variable speed, the electromagnetic field collective effect that the magnetic field generated by permanent magnet and electromagnetic coil generate is on magnetorheological fluid, magnetorheological fluid solid-liquid state can transfer certain torque, so as to fulfill the continuous control of load speed, it then can be according to the switch of selection coolant of different adaptability for working condition and the flow of coolant, heat management efficiency is improved, the intelligence adjusting of engine thermal management system is realized, ensures Fuel Economy to greatest extent.
Description
Technical field
The invention belongs to automobile engine cooling device design fields, and in particular to a kind of variable speed it is magnetorheological
Clutch, adjusting method and water pump.
Background technology
Rabinow first proposed the concept of magnetorheological fluid within 1948.It is to disperse the magnetic polarization particle of micron-scale
The suspension formed in non magnetic liquid (mineral oil, silicone oil etc.).In null field, magnetorheological fluid shows as mobile performance
Good liquid, apparent viscosity very little；It can increase by two in short time (Millisecond) interior apparent viscosity under strong magnetic field action
More than the order of magnitude, and class solid property is presented；And this variation is continuous, reversible, that is, is restored to again after removing magnetic field
State originally.However, during from the fifties to the eighties, due to the shear stress of not recognizing it potentiality and deposit
Suspension, the corrosivity the problems such as, magnetorheological fluid development is always very slowly.Into people nineties, with the raising of technology of preparing,
Life has been shone in magnetorheological fluid research again, becomes an important branch of current intellectual material research field.
It is external at present to have more than ten of country's throwing huge fund, Study on Acceleration and exploitation are carried out to the project, competitively develop this
Technology.Carlson and Weiss of LORD companies of the U.S. et al. magnetorheological fluid performance research and application and development in terms of achieve compared with
For prominent achievement, LORD companies is made to release commercial magnetorheological device for first in the world.The Zhu of California, USA state university and
Liu et al. people is particularly microstructure and has carried out a large amount of in-depth studies to the rheology of magnetorheological fluid.U.S. Notre Dame are big
Magnetic rheological liquid damper is used for the control of large scale structure seismic response by Dyke and Spencer et al..In addition, Byelorussia
Study on Heat and Mass Transfer Kordonski et al. made great progress in terms of the polishing of magnetorheological fluid and sealing applications.
German Kormann et al. has been developed that stable nanoscale magnetic after having made appropriate modification to particle diameter, superficial layer etc. and having improved
Rheology liquid (has and the substantially identical composition of magnetic fluid), and under the moderate magnetic field effect of 0.2T, yield stress is reachable
4kPa.The magnetorheological fluid research work in China is started late, it is domestic in recent years successively have Chinese University of Science and Technology, Fudan University,
Tens of scientific research institutions and the institutes such as University Of Chongqing, Northwestern Polytechnical University, Chinese Academy of Sciences's CAS Institute of Physics, Chongqing Intelligent material structure research institute
Also research work in this respect is all carried out in succession in school.With deeply starting with the raising of MRF performances, the technology in machinery for research
The fields such as engineering, automobile engineering, control engineering, precision instrument processing and aerospace obtain preliminary application, have shown huge
Big market application potential.
At present, automobile engine heat management is increasingly subject to social attention, it is generally the case that engine has one most preferably
Running temperature, it is just most fuel-efficient when being run under optimum temperature, and engine temperature when running at high speed can gradually rise, and should start
The cooling requirement of machine then needs coolant unlatching that cooling is adjusted when indicating oven temperature of engine.
It is to be exported coolant to equipment by pump operation in the prior art, water pump is to pass through engine in the running
Bent axle drive pulley rotation, the impeller of belt pulley and water pump realizes that rotary action power is passed to impeller, impeller fortune by linkage
Turn the conveying of realization coolant.Engine needs to carry out cooling treatment under certain operating mode in the prior art, and water pump is complete at this time
Fast operating condition, flow is larger, and cooling system does not work under other operating modes, due to different, the required coolant of engine operating condition
Flow also differs, according to the above-mentioned type of cooling, it will cause engine warm-up time it is long the problem of, heat management efficiency is low,
Energy consumption is larger, of high cost.
In view of problem above, it is necessary to propose it is a kind of using magnetorheological physical characteristic design torque it is stepless it is controllable from
Clutch applied to the step-less adjustment on water pump, realizing pump capacity, according to the variation of machine actual condition, realizes pump rotary speed
Continuous control, the switch of selection coolant of adaptability and the flow of coolant improve heat management efficiency, realize oil-saving discharging-reducing
Purpose, reduce cost.
The content of the invention
In view of this, the present invention provides a kind of magnetic rheological clutch of variable speed, according to engine cool needs, lead to
The magnetic field of permanent magnet generation and the electromagnetic field collective effect of electromagnetic coil generation are crossed on magnetorheological fluid, magnetorheological fluid solid-liquid state
Certain torque can be transferred, so as to fulfill the continuous control of load speed, according to the variation of machine operating mode, controls magnetorheological fluid
State, the size of output rotating speed regulation, the then switch of adjusting coolant of being adapted to property and the flow of coolant improve
Heat management efficiency realizes the purpose of oil-saving discharging-reducing, reduces cost.
The magnetic rheological clutch that a kind of variable speed that purpose according to the present invention proposes is adjusted, the magnetic rheological clutch
Including a drive, the drive is fixedly connected with a storage to connect power source to transfer rotatory force on the drive
Sap cavity, the liquid storage cylinder is interior to be filled with magnetorheological fluid, and an output shaft, the end of the output shaft are provided on the output terminal of drive
Contact in end insertion liquid storage cylinder and with magnetorheological fluid, the front end connection load of the output shaft, the drive, liquid storage cylinder and
Output shaft concentrically line；
The magnetic rheological clutch further includes an electromagnetic coil, and the electromagnetic coil generates electromagnetic field, the electricity after being powered
Magnetic field size is adjustable, and the character of magnetorheological fluid is in a liquid state according to electromagnetic field size, solid-state or between solid-state and liquid；
When drive rotates, magnetorheological fluid provides shearing force for output shaft, when shearing force is more than load inertia torque and carries
During for driving moment, load operation, and load speed is adjustable；When shearing force is less than load inertia torque, load stalling.
Preferably, the magnetic rheological clutch further includes a permanent magnet, under original state, in magnetic field of permanent magnet active force
Under, the magnetorheological fluid in liquid storage cylinder is solid-state, and drive, output shaft and load rotate synchronously；After energization, the electromagnetic field with forever
On the contrary, when electromagnetic field incrementally increases, magnetorheological fluid is progressively changed magnets magnetic fields from solid-state to liquid, output shaft and load speed by
Step reduces, when shearing force is less than load inertia torque, load stalling.
Preferably, the permanent magnet is arranged on liquid storage cylinder one side.
Preferably, the electromagnetic coil is arranged on output shaft or is arranged on liquid storage cylinder opposite side.
Preferably, it is described output shaft end be fixedly installed a turntable, the turntable is located in liquid storage cylinder, the turntable and
Output shaft and load rotate synchronously, and the rotation of different rotating speeds is realized according to the state of magnetorheological fluid.
Preferably, the liquid storage cylinder is cooperatively formed by upper and lower two the covers, and a liquid injection hole, institute are offered on the liquid storage cylinder
Liquid storage cylinder is stated as sealed set.
A kind of electrodeless variable-speed adjusting method of magnetic rheological clutch, it is specific as follows using magnetic rheological clutch：
S1：The magnetic rheological clutch includes a permanent magnet, under original state, under magnetic field of permanent magnet active force, and liquid storage
The magnetorheological fluid of intracavitary is solid-state, and drive, output shaft and load rotate synchronously；
S2：Electromagnetic coil energization is handled：
When electric current is 0, the high-intensity magnetic field of permanent magnet makes magnetorheological fluid that solid-state properties, solid magnetorheological fluid be presented in system
Shearing force can be provided for driving output shaft, the torque of drive be passed into load, load starts running, and load speed is with passing
Driving wheel rotating speed is consistent；
When electric current is T, the magnetic field intensity that electromagnetic coil generates is big with the magnetic field intensity of permanent magnet generation at output shaft
Small equal, direction is in a liquid state on the contrary, the conjunction magnetic force that magnetorheological fluid is subject at this time is zero, the shearing force provided at this time for output shaft
The moment of inertia of load and required driving moment can not be overcome, the torque of drive can not pass to load, at this time load stalling；
When current value is in 0 between T, electromagnetic coil generates the magnetic field of some strength and magnetic field of permanent magnet phase interaction
With the state that magnetorheological fluid is presented provides certain shearing force for output shaft, can overcome load between solid-state and liquid
Moment of inertia certain driving moment can be simultaneously provided, be supported under setting speed and operate, load speed be less than transmission wheel speed.
A kind of water pump including impeller, further includes magnetic rheological clutch, and the impeller is the load, the property of magnetorheological fluid
Shape changes, and exports different rotating speeds, then adjusts the flow of water pump.
Compared with prior art, it is the advantages of the magnetic rheological clutch of variable speed disclosed by the invention：
According to engine cool needs, the electromagnetic field collective effect of the magnetic field generated by permanent magnet and electromagnetic coil generation
On magnetorheological fluid, magnetorheological fluid solid-liquid state can transfer certain torque, so as to fulfill the continuous control of load speed.
According to the variation of actual condition, the state of magnetorheological fluid is controlled by ECU, controls the size of output speed, it can be real
Existing load speed is from 0 to maximum continuous control, the then switch of selection coolant of being adapted to property and the flow of coolant,
Shorten warm-up period, improve heat management efficiency, realize the intelligence adjusting of engine thermal management system, ensure to start to greatest extent
Machine fuel economy.
Moreover, fast response time of the present invention, millisecond rank；Rotational speed regulation is realized by magnetorheological fluid, structure is more succinct,
Noise is small.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
The stereogram of magnetic rheological clutch in Fig. 1.
Fig. 2 is the sectional view of magnetic rheological clutch.
Fig. 3 is the explosive view of magnetic rheological clutch.
The title of digital or alphabetical representative corresponding component in figure：
1st, drive 2, liquid storage cylinder 3, output shaft 4, water pump cover 5, bearing 6, electromagnetic coil 7, driving disk 8,
Sealing ring 9, gasket 10, sleeve 11, upper cover 12, lower the cover 13, permanent magnet 14, bolt 15, liquid injection hole
Specific embodiment
Just as described in the background section, engine needs to carry out cooling treatment under certain operating mode in the prior art, this
When water pump be full-speed operation state, flow is larger, and since engine operating condition is different, required coolant rate also differs, if
Using the above-mentioned type of cooling, it will cause engine warm-up time it is long the problem of, heat management efficiency is low, and energy consumption is larger, of high cost.
The present invention provides a kind of magnetic rheological clutch of variable speed for deficiency of the prior art, according to starting
The electromagnetic field collective effect that machine cooling required, the magnetic field generated by permanent magnet and electromagnetic coil generate is on magnetorheological fluid, magnetic
Rheology liquid solid-liquid state can transfer certain torque, so as to fulfill the continuous control of load speed, according to the change of actual condition
Change, control the state of magnetorheological fluid, the size of output rotating speed regulation, the then switch of the adjusting coolant of being adapted to property and cold
But the flow of liquid improves heat management efficiency, realizes the purpose of oil-saving discharging-reducing, reduce cost.
Technical scheme will be clearly and completely described by specific embodiment below.Obviously, retouched
The embodiment stated is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill all other embodiments obtained without creative efforts, belong to the present invention
The scope of protection.
Please also refer to Fig. 1 to Fig. 3, as shown in the figure, the magnetic rheological clutch that a kind of variable speed is adjusted, magnetorheological clutch
Device includes a drive 1, and drive 1 is to connect power source to transfer rotatory force, and power source is engine in the present invention, wherein
Drive is belt wheel form, the bent axle connection driving pulley of engine, driving pulley and drive formation linkage.
In the present invention by taking water pump as an example, rotary action power is transferred the impeller of feed pump by drive, in traditional structure forms
There is no clutch is set, engine direct connects impeller operating output coolant, and the flow of coolant is unable to control, and due to
Engine operating condition is different, and required coolant rate also differs, and therefore, it is long to exist in the prior art engine warm-up time,
The problem of heat management efficiency is low, and energy consumption is larger.
By setting magnetic rheological clutch in the present invention, which is connected with impeller, realizes the stepless of impeller
Gearshift adjustment.Wheel speed is adjusted according to the variation of actual condition, it, can basis so as to adjust the uninterrupted of engine coolant
The rotating speed for needing to control impeller of the difference operating mode such as machine rotational speed, igniting, shortens warm-up period, improves heat management efficiency, reduce
Oil consumption realizes the purpose of oil-saving discharging-reducing, reduces cost.
A liquid storage cylinder 2 is fixedly connected on drive 1, liquid storage cylinder 2 can be cooperatively formed by upper cover 11 and lower the cover 12, side
Just dismantle, also can directly use an entire accommodating cavity, concrete mode is not limited.
Magnetorheological fluid is filled in liquid storage cylinder 2, an output shaft 3 is provided on the output terminal of drive 1, and (output shaft is leaf
The shaft of wheel), the end insertion liquid storage cylinder 2 of output shaft 3 is interior and is contacted with magnetorheological fluid, and the front end connection load of output shaft is leaf
Wheel, drive, liquid storage cylinder and output shaft concentrically line, in this way, the power of drive can be passed to by magnetorheological fluid
Output shaft, and the size for exporting rotating speed depends on magnetorheological fluid state in which.And the state of magnetorheological fluid is affected by magnetic fields,
Magnetic rheological clutch further includes an electromagnetic coil 6, and electromagnetic coil 6 generates electromagnetic field after being powered, and electromagnetic field size is adjustable, magnetorheological
The character of liquid is in a liquid state according to electromagnetic field size, solid-state or between solid-state and liquid, and therefore, the size of electric current is straight after energization
The rotating speed for affecting output shaft is connect, can realize load speed as needed from 0 to maximum continuous control, it is easy to operate, accurately
Degree is high.
When drive 1 rotates, magnetorheological fluid provides shearing force for output shaft 3, when shearing force is more than load inertia torque simultaneously
When driving moment is provided, load operation；When shearing force is less than load inertia torque, load stalling.
Preferably, magnetic rheological clutch further includes a permanent magnet 13, according to job requirement, in the feelings that electromagnetic coil is not powered on
Under condition, output shaft will be rotated synchronously with drive, it is therefore desirable under the one side of liquid storage cylinder setting permanent magnet, original state,
Under magnetic field of permanent magnet active force, the magnetorheological fluid in liquid storage cylinder is solid-state, and output shaft is rotated synchronously with drive and load；It is powered
Afterwards, it is different according to size of current, generate the varying strength electromagnetic field opposite with magnetic field of permanent magnet, when electromagnetic field incrementally increases, magnetic
Rheology liquid is progressively changed from solid-state to liquid, and drive is gradually reduced with load speed, when shearing force is less than load inertia torque
When, load stalling.
Preferably, permanent magnet is arranged on liquid storage cylinder one side.Electromagnetic coil is arranged on output shaft.It, can in practical operation
Directly electromagnetic coil is arranged on water pump cover 4 or electromagnetic coil and permanent magnet be separately positioned on to the both sides of liquid storage cylinder, tool
Body placement location is not limited.
Wherein, 3 end of output shaft is fixedly installed a turntable, and turntable is located in liquid storage cylinder 2, turntable and output shaft and load
It rotates synchronously, the rotation of different rotating speeds is realized according to the state of magnetorheological fluid.Turntable preferably using driving disk 7, passes through driving
The setting of disk increases effectively the contact area with magnetorheological fluid, then so that magnetorheological fluid effectively acts on driving disk
On, the contact stabilization of the part is improved, convenient for being driven to output shaft.In addition, turning for other structures form also can be used
Disk is not limited specifically.
Liquid storage cylinder 2 is cooperatively formed by upper and lower two the covers, and fixation can be bolted with lower the cover 12 in upper cover 11, and
Driving disk is supported in by output shaft inside liquid storage cylinder, and a liquid injection hole 15 is offered on liquid storage cylinder, stopple is set at liquid injection hole,
So that liquid storage cylinder is sealed set.
The invention also discloses the electrodeless variable-speed adjusting method of magnetic rheological clutch, using magnetic rheological clutch, specifically such as
Under：
Under original state, due to the magnetic fields of permanent magnet, solid-state properties are presented in magnetorheological fluid, and driving disk exists with sealing
In solid magnetorheological fluid, by the rotation of drive liquid storage cylinder is driven to be driven, then drive the synchronous rotation of output shaft.
Electromagnetic coil energization is handled：
When electric current is 0, the high-intensity magnetic field of permanent magnet makes magnetorheological fluid that solid-state properties, solid magnetorheological fluid be presented in system
Shearing force can be provided for driving output shaft, the torque of drive be passed into load, load starts running, and load speed is with passing
Driving wheel rotating speed is consistent；
When electric current is T, the magnetic field intensity that electromagnetic coil generates is big with the magnetic field intensity of permanent magnet generation at output shaft
Small equal, direction is in a liquid state on the contrary, the conjunction magnetic force that magnetorheological fluid is subject at this time is zero, the shearing force provided at this time for output shaft
The moment of inertia of load and required driving moment can not be overcome, the torque of drive can not pass to load, at this time load stalling；
When current value is in 0 between T, electromagnetic coil generates the magnetic field of some strength and magnetic field of permanent magnet phase interaction
With the state that magnetorheological fluid is presented provides certain shearing force for output shaft, can overcome load between solid-state and liquid
Moment of inertia certain driving moment can be simultaneously provided, be supported under setting speed and operate, load speed be less than transmission wheel speed.
According to the variation of actual condition, the state of magnetorheological fluid is controlled by ECU (electronic controller), controls output speed
Size, it can be achieved that wheel speed controls pump capacity, shortens warm-up period, improve heat management from 0 to maximum continuous control
Efficiency realizes the intelligence adjusting of engine thermal management system, ensures Fuel Economy to greatest extent.
Magnetic rheological clutch in the present invention is preferably applied on water pump, but is not limited on water pump, and any transmission torque is real
The occasion of existing clutch function can consider to apply.
, control operation simple with respect to the clutch configuration of traditional technology that the present invention using magnetorheological fluid principle prepares clutch
Convenient, noise is small.
The invention discloses a kind of magnetic rheological clutch of variable speed, according to engine cool needs, pass through permanent magnet
On magnetorheological fluid, magnetorheological fluid solid-liquid state can be transferred the electromagnetic field collective effect that the magnetic field of generation and electromagnetic coil generate
Certain torque, so as to fulfill the continuous control of load speed.
According to the variation of actual condition, the state of magnetorheological fluid is controlled by ECU, controls the size of output speed, it can be real
Existing load speed is from 0 to maximum continuous control, the then switch of selection coolant of being adapted to property and the flow of coolant,
Heat management efficiency is improved, the intelligence adjusting of engine thermal management system is realized, ensures Fuel Economy to greatest extent.
Moreover, fast response time of the present invention, millisecond rank；Rotational speed regulation is realized by magnetorheological fluid, structure is more succinct,
Noise is small.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (7)
1. a kind of magnetic rheological clutch that variable speed is adjusted, which is characterized in that the magnetic rheological clutch includes a drive,
The drive is fixedly connected with a liquid storage cylinder, the liquid storage to connect power source to transfer rotatory force on the drive
Intracavitary is filled with magnetorheological fluid, is provided with an output shaft on the output terminal of drive, the liquid storage cylinder is arranged at the end of output shaft
Portion, the output the tip of the axis insertion liquid storage cylinder is interior and is contacted with magnetorheological fluid, the front end connection load of the output shaft, described
Concentrically line, the output shaft end are fixedly installed a turntable, the turntable entirety position for drive, liquid storage cylinder and output shaft
In in liquid storage cylinder, the turntable is rotated synchronously with output shaft and load, and turning for different rotating speeds is realized according to the state of magnetorheological fluid
It is dynamic；
The magnetic rheological clutch further includes an electromagnetic coil, and the electromagnetic coil generates electromagnetic field, the electromagnetic field after being powered
Size is adjustable, and the character of magnetorheological fluid is in a liquid state according to electromagnetic field size, solid-state or between solid-state and liquid；
When drive rotates, magnetorheological fluid provides shearing force for output shaft, when shearing force is more than load inertia torque and provides drive
During kinetic moment, load operation, and load speed is adjustable；When shearing force is less than load inertia torque, load stalling.
2. the magnetic rheological clutch that variable speed as described in claim 1 is adjusted, which is characterized in that the magnetic rheological clutch
Further include a permanent magnet, under original state, under magnetic field of permanent magnet active force, the magnetorheological fluid in liquid storage cylinder is solid-state, transmission
Wheel, output shaft and load rotate synchronously；After energization, the electromagnetic field and magnetic field of permanent magnet are on the contrary, when electromagnetic field incrementally increases, magnetic
Rheology liquid is progressively changed from solid-state to liquid, and output shaft is gradually reduced with load speed, when shearing force is less than load inertia torque
When, load stalling.
3. the magnetic rheological clutch that variable speed as claimed in claim 2 is adjusted, which is characterized in that the permanent magnet is arranged at
On liquid storage cylinder one side.
4. the magnetic rheological clutch that variable speed as claimed in claim 3 is adjusted, which is characterized in that the electromagnetic coil is set
In on output shaft or being arranged on liquid storage cylinder opposite side.
5. the magnetic rheological clutch that variable speed as described in claim 1 is adjusted, which is characterized in that the liquid storage cylinder is by upper and lower
Two the covers cooperatively form, and a liquid injection hole is offered on the liquid storage cylinder, and the liquid storage cylinder is sealed set.
6. the electrodeless variable-speed adjusting method of a kind of magnetic rheological clutch, which is characterized in that using described in claim any one of 2-5
Magnetic rheological clutch, it is specific as follows：
S1：The magnetic rheological clutch includes a permanent magnet, under original state, under magnetic field of permanent magnet active force, in liquid storage cylinder
Magnetorheological fluid for solid-state, drive, output shaft and load rotate synchronously；
S2：Electromagnetic coil energization is handled：
When electric current is 0, the high-intensity magnetic field of permanent magnet makes magnetorheological fluid be presented solid-state properties in system, and solid magnetorheological fluid can be with
Shearing force is provided for driving output shaft, the torque of drive is passed into load, load starts running, load speed and drive
Rotating speed is consistent；
When electric current be T when, electromagnetic coil generate magnetic field intensity at output shaft with permanent magnet generation magnitude of field intensity phase
Deng, direction on the contrary, the conjunction magnetic force that magnetorheological fluid is subject at this time is zero, it is in a liquid state, the shearing force provided at this time for output shaft can not
Overcome the moment of inertia of load and required driving moment, the torque of drive can not pass to load, at this time load stalling；
When current value is in 0 between T, electromagnetic coil generates the magnetic field of some strength and permanent magnet magnetic field interactions, magnetic
The state that rheology liquid is presented provides certain shearing force for output shaft between solid-state and liquid, can overcome the used of load
Property torque certain driving moment can be simultaneously provided, be supported under setting speed and operate, load speed be less than transmission wheel speed.
7. a kind of water pump, including impeller, which is characterized in that claim 1-5 any one of them magnetic rheological clutch is further included,
The impeller is the load, and the character of magnetorheological fluid changes, and exports different rotating speeds, then adjusts the flow of water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708144.1A CN106090066B (en) | 2016-08-23 | 2016-08-23 | Magnetic rheological clutch, adjusting method and the water pump that a kind of variable speed is adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708144.1A CN106090066B (en) | 2016-08-23 | 2016-08-23 | Magnetic rheological clutch, adjusting method and the water pump that a kind of variable speed is adjusted |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106090066A CN106090066A (en) | 2016-11-09 |
| CN106090066B true CN106090066B (en) | 2018-06-05 |
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ID=57224694
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610708144.1A Active CN106090066B (en) | 2016-08-23 | 2016-08-23 | Magnetic rheological clutch, adjusting method and the water pump that a kind of variable speed is adjusted |
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| CN (1) | CN106090066B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8726966D0 (en) * | 1987-11-18 | 1987-12-23 | Jaguar Cars | Cooling systems |
| US20070022979A1 (en) * | 2005-08-01 | 2007-02-01 | The Timken Company | Coolant pump for internal combustion engine |
| CN100494721C (en) * | 2006-06-05 | 2009-06-03 | 倪平涛 | Controllable coupler of magnetic rheologic coupling wheel pair |
| EP2476928A1 (en) * | 2011-01-18 | 2012-07-18 | Pierburg Pump Technology Italy S.p.A. | Automotive fluidic pump |
| CN202251542U (en) * | 2011-09-09 | 2012-05-30 | 湖州比洛德传动技术有限公司 | Magnetorheological fluid fan clutch |
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2016
- 2016-08-23 CN CN201610708144.1A patent/CN106090066B/en active Active
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