CN107763109B - A kind of temperature control change face magnetorheological transmission device - Google Patents
A kind of temperature control change face magnetorheological transmission device Download PDFInfo
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- CN107763109B CN107763109B CN201711069843.7A CN201711069843A CN107763109B CN 107763109 B CN107763109 B CN 107763109B CN 201711069843 A CN201711069843 A CN 201711069843A CN 107763109 B CN107763109 B CN 107763109B
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- shell
- driven
- casing
- spacing pressing
- active casing
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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
- 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
- F16D2037/001—Electric arrangements for clutch control
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a kind of temperature controls to become face magnetorheological transmission device, including driving shaft, active casing, driven shell and driven shaft, the active casing is cylindrical in shape, a driving disc spacing pressing and driven disc are equipped in driven shell, it is filled with magnetorheological fluid in gap between driving disc spacing pressing, driven disc and driven shell, several through-holes are offered on driving disc spacing pressing；The left side central portion of the driving disc spacing pressing has a guide pipe, a shape memory alloy spring is equipped between guide pipe and connection cover, both ends are connected with connection cover and guide pipe respectively；Venthole is equipped on active casing, which is located at outside of sleeve；One is embedded with around driven one week magnet exciting coil of shell in the junction of left shell and right shell body.The torque maximum value of the configuration of the present invention is simple, transmitting is bigger, effectively improves the transmission efficiency of torque, and can automatically adjust the torque of transmitting according to real time temperature, keeps energy consumption lower, and guarantee the stability of transmission process.
Description
Technical field
The present invention relates to a kind of transmission devices more particularly to a kind of temperature control to become face magnetorheological transmission device.
Background technique
Magnetorheological fluid and marmem are all the new materials developed in modern age, can be by changing its external object
Reason field (such as magnetic field and temperature field) and then the property and state for changing them；Using the special nature of both materials, in clutch
In the transmission devices such as device using more and more；But currently, magnetorheological fluid and shape memory alloy spring are mostly single make
With:
As disclosed in CN103603891A " multi-piece magnetorheological fluid electromagnetic clutch ", it utilizes multiple-piece construction, utilizes
Magnetorheological fluid, full of the gap between multiple driving and driven friction plates of electromagnetic clutch, forms multiple magnetorheological fluid works as medium
Make anchor ring, biggish transmitting power can be controlled with smaller exciting current, it is easy to accomplish automatically control, guarantee engagement and separation process
Stationarity.As disclosed in CN2918748 " internal combustion engine thermal fan clutch ", it incudes radiator using marmem
Temperature, when the temperature is low, the magnetic force between magnetic conduction convex block on the magnetic pole and fan hub on driving disc spacing pressing is small, and rotation speed of the fan is low,
When temperature is high, marmem pushes magnetic conductive disk mobile, magnetic force is increased, so that rotation speed of the fan increases.
But the use of homogenous material, appoint during the work time so and will appear biggish defect: as shape is not achieved in temperature
When the critical-temperature of memorial alloy variation, marmem can not work；And when the temperature is excessively high, magnetorheological fluid is magnetorheological
Effect can weaken again, reduce transmission efficiency；To the stability for causing the efficiency of transmission device transmitting torque lower and whole
It is poor.In addition, existing transmission device is after the assembly is completed, the contact area of magnetorheological fluid and driving and driven component is fixed,
The torque maximum value for transmitting it is all certain, although can be adjusted by changing size of current, the range adjusted
Also smaller.Meanwhile existing transmission device cannot be according to the variation automatic start-stop of temperature, so that it is higher to also result in energy consumption.
Summary of the invention
In view of the above shortcomings of the prior art, it is an object of the invention to solve the torque of existing transmission device transmitting
Maximum value is smaller, and transmission efficiency is low, and energy consumption is high, cannot be automatically adjusted according to real time temperature, and the problem of stability difference,
A kind of temperature control change face magnetorheological transmission device is provided, structure is simple, and the torque maximum value of transmitting is bigger, effectively improves the biography of torque
Efficiency is passed, and the torque of transmitting can be automatically adjusted according to real time temperature, keeps energy consumption lower, and guarantee the stabilization of transmission process
Property.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that such: a kind of temperature control change face is magnetorheological
Transmission device, including driving shaft, active casing, driven shell and driven shaft, the active casing are cylindrical in shape, the driving shaft
Right end protrude into active casing, expand to form a connection cover at left end, and pass through the connection cover and active casing
Left end is fixedly connected；The driven shell includes left shell and right shell body, and the left side of the left shell has sleeve, active shell
The right end of body protrudes into the casing, and is connected by bearing with casing；The left end of the driven shaft pass through left shell after protrude into from
In dynamic shell, and it is connected by key with left shell；It is characterized by: a driving disc spacing pressing and driven disc are equipped in driven shell,
In, the left side of driving disc spacing pressing is bonded with left shell, and the right side of driven disc is bonded with right shell body, and driven disc protruded into driven shaft it is driven
One end of shell is fixedly connected；Magnetorheological fluid is filled in gap between driving disc spacing pressing, driven disc and driven shell, in master
Several through-holes are offered on Moving plate；In the left side of driven disc close to edge equipped with convex edge around it, on the right side of driving disc spacing pressing
Side, the corresponding convex edge is equipped with an annular groove, and the depth of the annular groove is less than the thickness of convex edge；
The left side central portion of the driving disc spacing pressing has a guide pipe, and the left end of the guide pipe is protruded into active casing, and with
Active casing clearance fit；Meanwhile the guide pipe is set on driving shaft, and is slidably connected by feather key and driving shaft；It is leading
A shape memory alloy spring is equipped between Xiang Guanyu connection cover, which is set on driving shaft, and two
End is connected with connection cover and guide pipe respectively；Venthole is equipped on active casing, which is located at outside of sleeve；
One is embedded with around driven one week magnet exciting coil of shell in the junction of left shell and right shell body.
Further, it is equipped with a Shape memory alloy switches on left shell, an electric brush slip ring is equipped on active casing,
The electric brush slip ring is connected after Shape memory alloy switches with magnet exciting coil.
Further, on the circumferential surface of driven disc, it is equipped with several accommodation grooves around it, a friction is equipped in accommodation groove
Block is radially provided with a guide rod along driven disc between friction block and accommodating groove bottom, a pressure is arranged on the guide rod
Contracting spring, the both ends of the compressed spring are connected with accommodating groove bottom and friction block respectively.
Further, convex edge is all had on the outside of the left shell and the adjacent one end of right shell body, in left shell and right shell body
Adjacent one end end face corresponding position is respectively equipped with annular groove around it, left shell and right shell body and passes through the spiral shell across convex edge
Bolt is connected；Wherein, two annular grooves are connected to form coil slot, and the magnet exciting coil is located in the coil slot.
Further, a liquid injection hole is equipped on right shell body, which runs through driven disc, be coupled in liquid injection hole
There is a fluid injection plug screw.
Further, it is equipped with an end cap in the left end of left casing, which is set on active casing, and solid with left casing
Fixed connection；A felt circle is equipped between end cap and active casing.
Compared with prior art, the present invention has the advantage that
1, structure is simple, and after magnet exciting coil is powered, magnetorheological fluid can produce magnetic rheology effect, turns transmission device transmitting
Square.
2, after the raising of environment temperature, deformation occurs for shape memory alloy spring, pushes driving disc spacing pressing to move right, simultaneously
Squeeze magnetorheological fluid, make to flow to after magnetorheological fluid via through holes on the left of driving disc spacing pressing, until the bottom surface of the annular groove of driving disc spacing pressing with from
It is close to convex edge on Moving plate；At this point, being all had between driving disc spacing pressing and driven disc and between driving disc spacing pressing and left shell magnetorheological
Liquid, to make the contact area of magnetorheological fluid and driving disc spacing pressing and driven shell increase, so as to effectively increase transmitting torque
The transmission efficiency of maximum value and torque；Meanwhile under the action of shape memory alloy spring, convex edge is close to commutation groove floor
And friction is generated, the transmission efficiency of torque is further increased, and guarantee the stability of torque transfer.
3, friction block is set on driven disc circumferential surface, after driven disc rotation, under the influence of centrifugal force, friction block is got rid of
Accommodation groove out, and be close to generate friction with driven shell, the transmission efficiency of torque is further increased, the stabilization of torque transfer is improved
Property.
4, the power on/off of magnet exciting coil is carried out by Shape memory alloy switches and size of current controls, pass through to realize
Real time environment temperature controls the transmission efficiency of transmission device, and energy-saving effect is more preferable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of original state of the present invention.
Fig. 2 is the structural schematic diagram of working condition of the present invention.
In figure: 1-driving shaft, 2-active casings, 3-driven shafts, 4-left shells, 5-right shell bodies, 6-driving disc spacing pressings,
7-driven discs, 8-magnetorheological fluids, 9-shape memory alloy springs, 10-ventholes, 11-magnet exciting coils, 12-shapes note
Recall alloy switch, 13-electric brush slip rings, 14-friction blocks, 15-fluid injection plug screws, 16-end caps.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment: referring to Fig. 1, Fig. 2, a kind of temperature control becomes face magnetorheological transmission device, including driving shaft 1, active casing 2,
Driven shell and driven shaft 3.The active casing 2 is cylindrical in shape, and the right end of the driving shaft 1 protrudes into active casing 2, is leaned on
Expand to form a connection cover at nearly left end, and is fixedly connected by the connection cover with the left end of active casing 2.The driven shell
Including left shell 4 and right shell body 5；The left side of the left shell 4 has sleeve, and the right end of active casing 2 protrudes into the casing,
And it is connected by bearing with casing.It is equipped with an end cap 16 in the left end of left casing, which is set on active casing 2, and
It is fixedly connected with left casing；A felt circle is equipped between end cap 16 and active casing 2；To guarantee the close of entire transmission device
Feng Xing.The left end of the driven shaft 3 is protruded into driven shell after passing through left shell 4, and is connected by key with left shell 4；Make from
Moving axis 3 can be rotated synchronously with driven shell.
A driving disc spacing pressing 6 and driven disc 7 are equipped in driven shell, wherein the left side of driving disc spacing pressing 6 is bonded with left shell 4, from
The right side of Moving plate 7 is bonded with right shell body 5, and is fixedly connected by connecting bolt with right shell body 5, and driven disc 7 is stretched with driven shaft 3
The one end for entering driven shell is fixedly connected；When it is implemented, the driven shaft 3 and driven disc 7 are integrally formed.In driving disc spacing pressing 6, driven
It is filled with magnetorheological fluid 8 in gap between disk 7 and driven shell, several through-holes are offered on driving disc spacing pressing 6.In driven disc
7 left side is equipped with convex edge around it close to edge, and on the right side of driving disc spacing pressing 6, the corresponding convex edge is equipped with an annular groove,
And the depth of the annular groove is less than the thickness of convex edge；In this way, even if the bottom surface of annular groove is close to convex edge, driving disc spacing pressing 6 with
Between driven disc 7 also have gap, i.e., between driving disc spacing pressing 6 and driven disc 7 have magnetorheological fluid 8, thus guarantee magnetorheological fluid 8 with
The contact area of driving disc spacing pressing 6 and driven disc 7.A liquid injection hole is equipped on right shell body 5, which runs through driven disc 7, in fluid injection
A fluid injection plug screw 15 is fitted in hole, consequently facilitating injection and replacement magnetorheological fluid 8 etc..
The left side central portion of the driving disc spacing pressing 6 has a guide pipe, and the left end of the guide pipe is protruded into active casing 2, and
With 2 clearance fit of active casing；A sealing ring is equipped between guide pipe and active casing 2, so that magnetorheological fluid 8 be avoided to let out
Dew.Meanwhile the guide pipe is set on driving shaft 1, and is slidably connected by feather key with driving shaft 1；In guide pipe and connection cover
Between be equipped with a shape memory alloy spring 9, which is set on driving shaft 1, and both ends are respectively and even
Lid is connect to be connected with guide pipe；Venthole 10 is equipped on active casing 2, which is located at outside of sleeve；
One is embedded with around driven one week magnet exciting coil of shell 11 in the junction of left shell 4 and right shell body 5.Specific implementation
When, convex edge is all had on the outside of the left shell 4 and the adjacent one end of right shell body 5, in the adjacent one end of left shell 4 and right shell body 5
End face corresponding position is respectively equipped with annular groove around it, left shell 4 and right shell body 5 and is connected by passing through the bolt of convex edge；
Wherein, two annular grooves are connected to form coil slot, and the magnet exciting coil 11 is located in the coil slot.During actual fabrication,
Left shell 4 is equipped with a Shape memory alloy switches 12, and an electric brush slip ring 13, the electric brush slip ring 13 are equipped on active casing 2
It is connected after Shape memory alloy switches 12 with magnet exciting coil 11.Wherein, the Shape memory alloy switches 12 are the prior art,
Such as the Shape memory alloy switches in 2016211881727 public technology scheme of the patent No.；Pass through Shape memory alloy switches 12
The power on/off and size of current control for carrying out magnet exciting coil 11, to realize the biography for controlling transmission device by real time environment temperature
Efficiency is passed, energy-saving effect is more preferable.
It is equipped with several appearances around it on the circumferential surface of driven disc 7 to further increase transmission efficiency and transmitting stability
Slot is set, a friction block 14 is equipped in accommodation groove, is radially provided with one along driven disc 7 between friction block 14 and accommodating groove bottom
Guide rod, is arranged with a compressed spring on the guide rod, the both ends of the compressed spring respectively with accommodating groove bottom and friction block
14 are connected.After driven disc 7 rotates, under the influence of centrifugal force, friction block 14 is thrown out of accommodation groove, and is close to driven shell
Friction is generated, to assist carrying out the transmitting of torque.
As in the course of work of the present embodiment,
1, original state, in working clearance of the magnetorheological fluid 8 between driving disc spacing pressing 6 and driven disc 7, only with driving disc spacing pressing 6 and
Driven disc 7 contacts；When active rotates, and temperature is lower than 70 degree, Shape memory alloy switches 12 are disconnected, and magnet exciting coil 11 does not lead to
Electricity cannot drive driven shaft 3 to rotate by the torque that the viscous force in 8 zero magnetic field of magnetorheological fluid is transmitted.
2, when temperature is higher than 70 degree, Shape memory alloy switches 12 are closed, and magnet exciting coil 11 is powered, and magnetic field passes through principal and subordinate
Magnetorheological fluid 8 between Moving plate 7 drives 3 turns of driven shaft by the torque energy that the shear stress in 8 zero magnetic field of magnetorheological fluid transmits
It is dynamic, but rotate slow；As temperature further increases, the electric current that Shape memory alloy switches 12 are supplied to magnet exciting coil 11 increases
Greatly, increase across the magnetic field strength of magnetorheological fluid 8, the torque of transmitting increases, and the rotation of driven shaft 3 is accelerated.Meanwhile friction block 14 exists
Under centrifugal force effect, it is thrown out of accommodation groove, and is close to generate additional friction torque with driven shell, it is defeated to further increase torque
Out, stability is more preferable.
3, when temperature is higher than 100 degree, shape memory alloy spring 9, which pushes, actively 6 to move right, the ring of principal and subordinate's Moving plate 7
Connected in star bottom surface is only contacted with the convex edge of driven disc 7, does not generate extruding force, but crimping section magnetorheological fluid 8 flow to driving disc spacing pressing 6 with
In gap between left shell 4, at this point, magnetorheological fluid 8 is contacted with driven disc 7 and left shell 4 simultaneously, contact area increases
Add, not only working face increases one times, and the magnetic field strength that magnetorheological fluid 8 is subject to is also bigger, so that magnetorheological fluid 8 be made to transmit
Torque increasing be twice it is above.
4, when temperature reaches 120 degree, the performance of magnetorheological fluid 8 declines, and shape memory alloy spring 9 pushes driving disc spacing pressing 6
The convex edge of driven disc 7 is squeezed, the friction torque that extruding force generates can overcome the disadvantages that the decline of 8 performance of magnetorheological fluid leads to torque drop
Part, to ensure that the stability of device transmission performance.
Finally, it should be noted that technical side the above examples are only used to illustrate the technical scheme of the present invention and are not limiting
Case, those skilled in the art should understand that, modification or equivalent replacement of the technical solution of the present invention are made for those, and
The objective and range for not departing from the technical program, are intended to be within the scope of the claims of the invention.
Claims (4)
1. a kind of temperature control becomes face magnetorheological transmission device, including driving shaft, active casing, driven shell and driven shaft, described
Active casing is cylindrical in shape, and the right end of the driving shaft protrudes into active casing, expands to form a connection cover at left end, and
It is fixedly connected by the connection cover with the left end of active casing；The driven shell includes left shell and right shell body, the left housing
The left side of body has sleeve, and the right end of active casing protrudes into the casing, and is connected by bearing with casing；The driven shaft
Left end pass through left shell after protrude into driven shell, and be connected with left shell by key；It is characterized by: in driven shell
Equipped with a driving disc spacing pressing and driven disc, wherein the left side of driving disc spacing pressing is bonded with left shell, and the right side of driven disc is bonded with right shell body,
And driven disc is fixedly connected with one end that driven shaft protrudes into driven shell；Between driving disc spacing pressing, driven disc and driven shell
It is filled with magnetorheological fluid in gap, several through-holes are offered on driving disc spacing pressing；The left side of driven disc close to edge be equipped with around
The convex edge in one week, on the right side of driving disc spacing pressing, the corresponding convex edge is equipped with an annular groove, and the depth of the annular groove is less than convex
The thickness on edge；
The left side central portion of the driving disc spacing pressing has a guide pipe, and the left end of the guide pipe protrudes into active casing, and with actively
Body clearance cooperation；Meanwhile the guide pipe is set on driving shaft, and is slidably connected by feather key and driving shaft；In guide pipe
A shape memory alloy spring is equipped between connection cover, which is set on driving shaft, both ends point
It is not connected with connection cover and guide pipe；Venthole is equipped on active casing, which is located at outside of sleeve；
On the circumferential surface of driven disc, around it be equipped with several accommodation grooves, in accommodation groove be equipped with a friction block, friction block with
It is radially provided with a guide rod along driven disc between accommodating groove bottom, a compressed spring is arranged on the guide rod, the compression
The both ends of spring are connected with accommodating groove bottom and friction block respectively；
One is embedded with around driven one week magnet exciting coil of shell in the junction of left shell and right shell body；One is equipped on left shell
Shape memory alloy switches, on active casing be equipped with an electric brush slip ring, the electric brush slip ring after Shape memory alloy switches with
Magnet exciting coil is connected.
2. a kind of temperature control according to claim 1 becomes face magnetorheological transmission device, it is characterised in that: the left shell and the right side
Shell all has convex edge on the outside of adjacent one end, the adjacent one end end face corresponding position of left shell and right shell body be respectively equipped with around
The annular groove in one week, left shell and right shell body are connected by passing through the bolt of convex edge；Wherein, two annular grooves are connected to form line
Ring recess, the magnet exciting coil are located in the coil slot.
3. a kind of temperature control according to claim 1 becomes face magnetorheological transmission device, it is characterised in that: be equipped on right shell body
One liquid injection hole, the liquid injection hole run through driven disc, a fluid injection plug screw are fitted in liquid injection hole.
4. a kind of temperature control according to claim 1 becomes face magnetorheological transmission device, it is characterised in that: in the left end of left casing
Equipped with an end cap, which is set on active casing, and is fixedly connected with left casing；It is equipped between end cap and active casing
One felt circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069843.7A CN107763109B (en) | 2017-11-03 | 2017-11-03 | A kind of temperature control change face magnetorheological transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711069843.7A CN107763109B (en) | 2017-11-03 | 2017-11-03 | A kind of temperature control change face magnetorheological transmission device |
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| Publication Number | Publication Date |
|---|---|
| CN107763109A CN107763109A (en) | 2018-03-06 |
| CN107763109B true CN107763109B (en) | 2019-06-28 |
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| CN201711069843.7A Expired - Fee Related CN107763109B (en) | 2017-11-03 | 2017-11-03 | A kind of temperature control change face magnetorheological transmission device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3795851A4 (en) * | 2018-05-18 | 2022-03-02 | Alps Alpine Co., Ltd. | Torque generation device |
| CN109707759B (en) * | 2019-01-07 | 2020-05-05 | 重庆理工大学 | Arc-shaped magneto-rheological and friction transmission device extruded by electromagnetic thermal memory alloy |
| CN114033815B (en) * | 2021-11-12 | 2023-08-22 | 重庆理工大学 | Multi-disc circular arc type MRF and SMA spring friction compound transmission device |
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| CN203098636U (en) * | 2012-12-12 | 2013-07-31 | 长安大学 | Magneto-rheological clutch |
| CN103470654A (en) * | 2013-09-16 | 2013-12-25 | 浙江师范大学 | Piezoelectric extrusion type magnetorheological clutch and transfer torque calculating method of piezoelectric extrusion type magnetorheological clutch |
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| CN204493499U (en) * | 2015-03-21 | 2015-07-22 | 重庆理工大学 | A kind of marmem helper drive magnetic rheological clutch |
| CN105351074A (en) * | 2015-12-01 | 2016-02-24 | 重庆理工大学 | Volume percentage variable magnetorheological fluid fan clutch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6942081B2 (en) * | 2003-11-03 | 2005-09-13 | China Patent Investment Limited | Electrorheological clutch |
| WO2015161430A1 (en) * | 2014-04-22 | 2015-10-29 | 上海锘威传动控制有限责任公司 | Magneto-rheological servo speed regulating and reducing device and assembly and control method therefor |
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|---|---|---|---|---|
| CN203098636U (en) * | 2012-12-12 | 2013-07-31 | 长安大学 | Magneto-rheological clutch |
| CN103470654A (en) * | 2013-09-16 | 2013-12-25 | 浙江师范大学 | Piezoelectric extrusion type magnetorheological clutch and transfer torque calculating method of piezoelectric extrusion type magnetorheological clutch |
| CN103758891A (en) * | 2014-01-13 | 2014-04-30 | 洛阳理工学院 | Gap fine adjustment type magnetorheological clutch |
| CN204493499U (en) * | 2015-03-21 | 2015-07-22 | 重庆理工大学 | A kind of marmem helper drive magnetic rheological clutch |
| CN105351074A (en) * | 2015-12-01 | 2016-02-24 | 重庆理工大学 | Volume percentage variable magnetorheological fluid fan clutch |
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| CN107763109A (en) | 2018-03-06 |
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