CN108194606A - A kind of new magnetorheological fluid speed changer - Google Patents
A kind of new magnetorheological fluid speed changer Download PDFInfo
- Publication number
- CN108194606A CN108194606A CN201810013528.0A CN201810013528A CN108194606A CN 108194606 A CN108194606 A CN 108194606A CN 201810013528 A CN201810013528 A CN 201810013528A CN 108194606 A CN108194606 A CN 108194606A
- Authority
- CN
- China
- Prior art keywords
- magnetorheological fluid
- output shaft
- driven gear
- end cap
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
-
- 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
- F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to a kind of new magnetorheological fluid speed changers, the new magnetorheological fluid speed changer includes power input shaft and output shaft, power input shaft is fixedly connected with driving gear, driving gear and its driven gear engaged transmission, driven gear connect the two by bearing with output shaft and can relatively rotate, driven gear boss side connection end cap, therefore driven gear, cooperation is formed in the interior thereof certain interval between end cap and output shaft, full of magnetorheological fluid, have electromagnetic core coil on the round platform of output shaft and be connected to electromagnetic controller, different electromagnetic core coils can be selected to be powered and generate magnetic field, so that the magnetorheological fluid by the magnetic fields generates magnetic rheology effect, and then driven gear and end cap can drive output shaft to export different rotating speeds, realize speed change.The magnetic rheology effect of present invention application magnetorheological fluid realizes speed change, and high sensitivity fast response time, speed change stationary noise is low, and service life is long and simple to operate, easily realizes and automatically controls.
Description
Technical field
The present invention relates to automobile technical field, particularly a kind of new magnetorheological fluid speed changer.
Background technology
With the continuous development of China's economic society, requirement of the people for production and living various aspects is also higher and higher, this
Including the aspect requirement of automobile industry development, the requirements such as simplicity of stationarity, Automobile operation for automobilism are got over
Come higher.
Nowadays the speed changer of most of automobile in its speed-change process there is larger mechanical shock, and shifting efficiency compared with
It is low, stationarity when this has seriously affected automobilism and the comfort taken, but also speed changer service life is relatively low.With this
Magnetorheological fluid drive technology develops more and more mature and stable by decades simultaneously, with fast response time, transmission parts mill
Damage is smaller, controls many advantages, such as simple.
Therefore, it is necessary to design a kind of new magnetorheological fluid speed changer, fast response time, high sensitivity, speed change is steady,
With small vibration, noise is low, and service life is relatively long, and required variable speed operation is simple and convenient, is easy to implement and automatically controls.
Invention content
The shortcomings that for existing transmission technology and deficiency, the purpose of the present invention is to provide a kind of new magnetorheological fluid changes
Fast device controls magnetorheological fluid to select different gear auxiliary driving by electromagnetic core coil, achievees the purpose that speed change with this.
This new magnetorheological fluid speed changer process is steady, and with small vibration, noise is low, fast response time, high sensitivity, service life phase
To longer, and required variable speed operation is simple and convenient, is easy to implement and automatically controls.
In order to realize above-mentioned purpose, a kind of technical solution of the invention is：A kind of new magnetorheological fluid speed changer, including
Power input shaft and and output shaft, be fixedly connected with multiple driving gears, and power input shaft can on the power input shaft
Drive whole driving gear common rotations, the driving gear is meshed transmission, while driven tooth with its driven gear respectively
Wheel is all connected on output shaft by bearing therefore driven gear can be relatively rotated with output shaft, the boss one of the driven gear
Side is fixedly connected with end cap, and the end cap is connect with output shaft also by bearing, the driven gear and end cap with it is described defeated
The joint of shaft is respectively arranged with sealing ring, has multiple round platforms on the output shaft, the driven gear, end cap and described
The round platform of output shaft, which matches, is formed in the interior thereof certain gap, and magnetorheological fluid, the output shaft are filled in the gap
Round platform on all have electromagnetic core coil.
Whole electromagnetic core coils are both connected to electromagnetic controller, and control can be selected not by electromagnetic controller
With electromagnetic core coil be powered or power-off, when electromagnetic controller controls whole electromagnetic core coils all to power off, it is described from
Magnetorheological fluid between moving gear, end cap and the output shaft all shows Newtonian fluid characteristic, therefore the driven gear and end
Lid cannot drive the output shaft to rotate, therefore there is no rotating speed outputs for output shaft；When electromagnetic controller controls a certain electromagnet
When core coil is powered, which can generate magnetic field, therefore can be generated by the magnetorheological fluid of the magnetic fields magnetorheological
Effect, shows high viscosity, lazy flow, and magnetorheological fluid can provide big shear yield stress, and then the driven gear and end
Lid can drive the output shaft to export certain rotating speed jointly, select different electromagnetic core coil energizations that can allow described defeated
Shaft exports different rotating speeds, realizes speed change.
Compared with existing speed changer, the present invention has many advantages, such as：The new magnetorheological fluid speed changer passes through selection
Different electromagnetic core coils is controlled to be powered or power off, and then select different gear auxiliary driving under the action of magnetorheological fluid,
Different rotating speeds is exported, reaches speed change purpose.The service life of this new magnetorheological fluid speed changer is relatively long, and speed change is steady
Property improve, with small vibration, noise is low, speed change fast response time, high sensitivity, and the variable speed operation of the speed changer is simple and convenient, just
It is automatically controlled in realization, this all meets the trend of contemporary automotive development.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention.
In figure：1- power input shafts, 2- high speed driving gears, 3- high speed driven gears, 4- magnetorheological nights I, 5- bearings, 6-
End cap I, 7- electromagnetic cores coil I, 8- electromagnetic cores coil II, 9- end caps II, 10- sealing rings, 11- output shafts, 12- are magnetorheological
Night II, 13- low speed driven gears, 14- low-speed active gears.
Specific embodiment
The present invention is described in more detail below in conjunction with the accompanying drawings.
A kind of new magnetorheological fluid speed changer as shown in Figure 1, including power input shaft 1 and with output shaft 11, it is described dynamic
Power input shaft 1 is fixedly connected respectively with high speed driving gear 2 and low-speed active gear 14, therefore the power input shaft 1 can
Drive 14 common rotation of the high speed driving gear 2 and low-speed active gear, the high speed driving gear 2 and low-speed active gear
14 are meshed and connect with high speed driven gear 3 and low speed driven gear 13 respectively, the high speed driven gear 3 and low speed driven tooth
Wheel 13 is connected to output shaft 11 by bearing 5 and respectively joint is provided with sealing ring 10,3 He of high speed driven gear at its
The boss side of low speed driven gear 13 has been respectively fixedly connected with end cap I and end cap II, and the end cap I and end cap II are also by axis
It holds and is connected to output shaft 11 and sealing ring is also equipped in joint, tool there are two round platform and is respectively on the output shaft 11
Electromagnetic core coil I and electromagnetic core coil II, between the round platform of the high speed driven gear 3, end cap I and the output shaft 11
It matches in the gap to be formed full of magnetorheological fluid I, the round platform of the high speed driven gear 13, end cap II and the output shaft 11
Between match in the gap to be formed be full of magnetorheological fluid II.
In the present embodiment, under reset condition, i.e., when being exported without rotating speed, the whole electromagnetic core of electromagnetic controller control
Coil all powers off, all without generating magnetic field, because the magnetorheological fluid I in this gap and magnetorheological fluid II all show the ox of low viscosity
Pause fluid behaviour, it is impossible to which yield stress is cut in offer, therefore high speed driven gear 3 and low speed driven gear 13 all cannot be by magnetorheological
Liquid band is moved output shaft 11 and is rotated, i.e., there is no rotating speed outputs for output shaft 11.
In the present embodiment, when automobile will enter high-speed travel state, electromagnet core wire is controlled by electromagnetic controller
Circle I, which is powered, generates magnetic field, while electromagnetic core coil II is controlled to power off, which causes high speed driven gear 3, end cap I and defeated
The magnetorheological fluid I joined together formed in gap of shaft 11 generates magnetic rheology effect, shows high viscosity, lazy flow, magnetorheological
Liquid I can provide big shear yield stress, when power input shaft 1 inputs certain rotating speed, drive high speed driving gear 2 and low speed
14 common rotation of driving gear drives high speed driven gear 3 respectively by engaging high speed driving gear 2 and low-speed active gear 14
It dallies on output shaft 11 with low speed driven gear 13, while also end cap I and end cap II is driven to dally on output shaft 11, due to
The big shear yield stress that magnetorheological fluid I provides can cause output shaft 11 to be gradually driven, until output shaft 11 has and height
The identical rotating speed of fast driven gear 3, i.e. automobile enter high-speed travel state.
In the present embodiment, when automobile from running at high speed low-speed running state to carry out speed change, pass through electromagnetism control
Device processed control electromagnetic core coil I powers off loss of excitation, since rheology of the magnetorheological fluid under magnetic fields be moment, reversible,
Therefore magnetorheological fluid I restores the Newtonian fluid characteristic of low viscosity, the big shear yield stress that magnetorheological fluid I provides disappears, same with this
When electromagnetic controller control electromagnetic core coil II be powered and generate magnetic field so that low speed driven gear 13, end cap II and output shaft
11 magnetorheological fluids II joined together formed in gap generate magnetic rheology effect, quickly show high viscosity, lazy flow and carry
For big shear yield stress, when power input shaft 1 inputs certain rotating speed, drive high speed driving gear 2 and low-speed active gear
14 common rotations drive high speed driven gear 3 and low speed driven gear 13 to dally on output shaft 11, simultaneously respectively by engaging
Also end cap I and end cap II is driven to dally on output shaft 11, the big shear yield stress that magnetorheological fluid II provides can drive output
11 gradual common rotation of axis, final output axis 11 have a rotating speed identical with low speed driven gear 13, i.e. automobilism is from height
Fast transport condition switchs to low-speed running state, which realizes speed change.
The present invention is not limited to the above-described embodiments, anyone can obtain other various shapes under the enlightenment of the present invention
The speed changer of formula, all equivalent changes and modifications done according to scope of the present invention patent should all belong to covering scope of the invention.
Claims (3)
1. a kind of new magnetorheological fluid speed changer, which is characterized in that including power input shaft, driving gear and driven gear, end
Lid, output shaft, electromagnetic core coil and magnetorheological fluid.
2. a kind of new magnetorheological fluid speed changer according to claim 1, which is characterized in that the driven gear, described
Coordinate between end cap and the output shaft and magnetorheological fluid is full of in formed gap, all with electricity on the round platform of the output shaft
Magnet core coil.
A kind of 3. new magnetorheological fluid speed changer according to claim 1,2, which is characterized in that whole electromagnet
Core coil is both connected to electromagnetic controller, different electromagnetic core coils can be selected to be powered by electromagnetic controller and generate magnetic
, therefore magnetic rheology effect can be generated by the magnetorheological fluid of the magnetic fields, show high viscosity, lazy flow so that magnetorheological
Liquid can provide big shear yield stress, and then the driven gear and end cap can drive the output shaft output different jointly
Rotating speed realizes speed change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013528.0A CN108194606A (en) | 2018-01-08 | 2018-01-08 | A kind of new magnetorheological fluid speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810013528.0A CN108194606A (en) | 2018-01-08 | 2018-01-08 | A kind of new magnetorheological fluid speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108194606A true CN108194606A (en) | 2018-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810013528.0A Pending CN108194606A (en) | 2018-01-08 | 2018-01-08 | A kind of new magnetorheological fluid speed changer |
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| CN (1) | CN108194606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925380A (en) * | 2019-12-06 | 2020-03-27 | 山东科技大学 | Planetary magnetorheological transmission device based on shearing-extruding effect |
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|---|---|---|---|---|
| KR20050028650A (en) * | 2003-09-19 | 2005-03-23 | 현대자동차주식회사 | Synchronizer of manual transmission |
| CN201753745U (en) * | 2010-03-24 | 2011-03-02 | 贾辉 | Multi-clutch automatic transmission |
| CN102506094A (en) * | 2011-10-27 | 2012-06-20 | 中国矿业大学 | Multi-disc type fine-pitch magnetorheological clutch |
| CN102975183A (en) * | 2012-11-08 | 2013-03-20 | 江苏技术师范学院 | Magnetorheological fluid rotary working platform device |
| CN103884516A (en) * | 2014-03-06 | 2014-06-25 | 黑龙江工程学院 | Magnetorheological fluid retarder performance testing device for mini-type vehicle |
| CN203686037U (en) * | 2013-11-28 | 2014-07-02 | 长安大学 | Magnetorheological fluid based cone gear driving reverser |
-
2018
- 2018-01-08 CN CN201810013528.0A patent/CN108194606A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050028650A (en) * | 2003-09-19 | 2005-03-23 | 현대자동차주식회사 | Synchronizer of manual transmission |
| CN201753745U (en) * | 2010-03-24 | 2011-03-02 | 贾辉 | Multi-clutch automatic transmission |
| CN102506094A (en) * | 2011-10-27 | 2012-06-20 | 中国矿业大学 | Multi-disc type fine-pitch magnetorheological clutch |
| CN102975183A (en) * | 2012-11-08 | 2013-03-20 | 江苏技术师范学院 | Magnetorheological fluid rotary working platform device |
| CN203686037U (en) * | 2013-11-28 | 2014-07-02 | 长安大学 | Magnetorheological fluid based cone gear driving reverser |
| CN103884516A (en) * | 2014-03-06 | 2014-06-25 | 黑龙江工程学院 | Magnetorheological fluid retarder performance testing device for mini-type vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925380A (en) * | 2019-12-06 | 2020-03-27 | 山东科技大学 | Planetary magnetorheological transmission device based on shearing-extruding effect |
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Application publication date: 20180622 |