CN102312939B - Clutch of magneto rheological fluid (MRF) fan - Google Patents
Clutch of magneto rheological fluid (MRF) fan Download PDFInfo
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- CN102312939B CN102312939B CN 201110267475 CN201110267475A CN102312939B CN 102312939 B CN102312939 B CN 102312939B CN 201110267475 CN201110267475 CN 201110267475 CN 201110267475 A CN201110267475 A CN 201110267475A CN 102312939 B CN102312939 B CN 102312939B
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Abstract
The invention discloses a clutch of a magneto rheological fluid (MRF) fan. The clutch disclosed by the invention comprises a power shaft, a fixed sleeve and an output disk, wherein a cavity filled with an MRF is arranged between the fixed sleeve and the output disk and is filled with a driving disk and a driven disk; the power shaft drives the driving disk and the driven disk drives the output disk; the fixed sleeve is internally provided with a positive coil and a negative coil which have different magnetic pole polarities, and a magnetism-isolation disk is arranged between the positive coil and the negative coil. The clutch disclosed by the invention has the advantages that the positive coil and the negative coil are arranged in the fixed sleeve, so that the output magnetic field is more stable, correspondingly the viscosity change of the MRF is also more stable, and the transmission is smoother; and the positive coil and the negative coil are separated by the magnetism-isolation disk, so that closed magnetic lines are formed, magnetic leakage is less, and the magnetic field distribution is more uniform.
Description
Technical field
The present invention relates to a kind of fan clutch, relate in particular to a kind of magnetic rheopectic solution fan clutch.
Background technique
At present liquid viscosity transmission more and more causes people's attention as an emerging technology.The liquid viscosity transmission is being owing to leading, having viscous liquid between passive components, is the Flexible Transmission without rigidity between main, Passive part, can realize stepless speed regulation, and speed regulation process is soft steadily, the time is short, highly sensitive, precision is high; Speed governing is stable, very easily realizes remote control and automatically control; Prime mover is started under underloading; The liquid viscosity transmission also obtains a wide range of applications in industries such as machinery, metallurgy, generating, chemical industry, mine, vehicle, boats and ships.
Existing clutch with magnetic rheologic liquid, its main structure is: adopt a plurality of parallel discs interlaced as the clutch body between driving link and the Passive part, be full of magnetic flow liquid in the space between the disc, in Passive part, arrange suitable electromagnetic coil, after the electromagnetic coil energising, magnetic flow liquid becomes the class solid state, disc is engaged, magnetic flow liquid recovers fluid state, disc is separated after the outage, thereby reaches the purpose of driving link and Passive part clutch.
Chinese patent for example, CN200610048366.1 discloses a kind of magnetic rheopectic solution fan clutch, the carbon brush of promising field coil power supply is installed on its central shaft, position at the corresponding field coil of front case also is provided with wire connection hole, and the wire of field coil is connected on the carbon brush slip-ring by wire connection hole.Carbon brush structure is so that the complete machine cost rises, and the spread of voltage that forms on the carbon brush cause the magnetic intensity fluctuation larger, and carbon brush is fragile, safeguards inconvenience.
Chinese patent is arranged again, CN01137376.8 discloses a kind of clutch and has comprised input shaft, output shaft, magnetic flow liquid, electromagnetic coil and clutch body etc., the clutch body is shell and the slide block of dish, input shaft and shell are fixedly linked, the slide block that can radially slide under centrifugal action is installed on the output shaft, and slide block is positioned at the cavity of shell.Although the clutch of this kind structure can transmit larger moment of torsion, its sealing configuration is not too reasonable, so that magnetic rheological liquid easily leaks.
Chinese patent is arranged again, CN 201110041597.0 discloses a kind of double plate clutch with magnetic rheologic liquid, comprise the master, driven shaft, be located at respectively the master, left side on the driven shaft, right magnetic conductive shell, left, right magnetic conductive shell is fastened together, left, the outer end of right magnetic conductive shell is fixed with respectively a left side, the right bearing seat, left, the outer end of right bearing seat is fixed with respectively a left side, right end cap, left, field coil successively in the groove that right magnetic conductive shell fastens, magnetism resistent ring, rotating seal ring and master, driven disk, magnetism resistent ring is provided with and passes into the master, advancing of driven disk gap magnetic flow liquid, oil outlet, initiatively disk is fixed on the driving shaft through screw, driven disk is fixed on the driven shaft through screw, described master, the inner end of driven shaft is provided with respectively introduces distinguished and admirable rotation blade, a left side, have the ventilation groove that leads to the rotation blade cavity on the right bearing seat; Have the driving and driven disk of a plurality of connections on the left and right magnetic conductive shell, will introduce the vent hole of distinguished and admirable derivation.The clutch with magnetic rheologic liquid of this kind structure, complex structure, not compact, be not suitable for the higher occasion of spatial requirement is being used.
Summary of the invention
In order to solve problem related in the background technique, the invention provides a kind of magnetic rheopectic solution fan clutch.
Technological scheme of the present invention is: a kind of magnetic rheopectic solution fan clutch, comprise line shaft, fixed cover and output disc, be provided with the cavity that is filled with magnetic rheological liquid between fixed cover and the output disc, fill in the cavity and be provided with driving disc and driven disc, line shaft drives driving disc, driven disc driver output dish is provided with the opposite positive coil of pole polarity and negative wire circle in the fixed cover, be provided with every disk between positive coil and the negative wire circle.
As a kind of preferred, cavity comprises drive cavity and pressurizing chamber, and drive cavity and pressurizing chamber communicate by passage, and driving disc and driven disc are positioned at drive cavity, are provided with the pressurization oar in the pressurizing chamber, and the pressurization oar links to each other with line shaft.
As a kind of preferred, pressurizing chamber diminishes gradually with the opening at the passage place of communicating.
As a kind of preferred, the pressurization oar comprises the oar body, the oar blade that is connected with it.
As a kind of preferred, blade is the 8-16 sheet.
As a kind of preferred, cover has bearing on the line shaft, and the outer ring of bearing links to each other with fixed cover.
As a kind of preferred, output disc is provided with filling opening, is provided with the liquid feeding plug screw in the filling opening.
As a kind of preferred, the pressurization oar is fixedly connected with line shaft by Cock screw, also is provided with lock bolt on the output disc, and an end of lock bolt is provided with for the locking slot of locking with output disc, and the lock bolt overcoat has Sealing.
As a kind of preferred, driven disc connects rotary disk, the rotary disk output disc that is connected.
As a kind of preferred, cover has seal ring on the line shaft, and the outer ring of seal ring is arranged in the rotary disk.
In sum, the present invention has the following advantages:
1, the present invention is arranged on positive and negative coil in the fixed cover, so that the magnetic field of output is more stable, correspondingly the variation of the viscosity of magnetic rheological liquid is also more stable, and is milder during transmission; And positive and negative coil is by separating every disk, so that it has formed the closed magnetic line of force, leakage field is few, and Magnetic field distribution is more even.
2, the present invention also is divided into cavity two cavitys, pressurizing chamber of a drive cavity, magnetic rheological liquid in the drive cavity is mainly used in transferring power, and the liquid that the magnetic rheological liquid in the pressurizing chamber throws away for replenishing drive cavity internal cause centrifugal force, so that the amount of liquid in the drive cavity is sufficient, and the pressurization oar links to each other with line shaft, in the process of rotation liquid is constantly got rid of in the drive cavity.
3, the preferred pressurizing chamber of the present invention diminishes gradually with the opening at the passage place of communicating, so that the liquid that enters in the drive cavity from pressurizing chamber can obtain larger pressure.
4, the present invention is also preferred the pressurize structure of oar and the quantity of blade so that the amount of liquid that the pressurization oar throws away in the unit time is more stable, and then so that the amount of liquid in the drive cavity is more stable, are conducive to transmission process.
5, the present invention is provided with rotary disk for connecting driven disc and output disc, so that power output is more stable.
6, the present invention also is arranged with seal ring at line shaft, the outer ring of seal ring is arranged in the rotary disk, just the magnetic rheological liquid complete closed has been got up by seal ring like this, so that it is difficult for spilling, and rotary disk also has seal action, has strengthened the sealing of complete machine.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention.
Embodiment
The invention will be further described with embodiment below in conjunction with accompanying drawing.
Such as Fig. 1 a preferred embodiment of the present invention is shown, a kind of magnetic rheopectic solution fan clutch, comprise line shaft 1, fixed cover 2 and output disc 3, be provided with the cavity 4 that is filled with magnetic rheological liquid between fixed cover 2 and the output disc 3, fill in the cavity 4 and be provided with driving disc 5 and driven disc 6, line shaft 1 driving driving disc 5, driven disc 6 driver output dishes 3, be provided with the opposite positive coil 7 of pole polarity and negative wire circle 8 in the fixed cover 2, be provided with every disk 21 between positive coil 7 and the negative wire circle 8.Cavity 4 comprises drive cavity 41 and pressurizing chamber 42, and drive cavity 41 and pressurizing chamber 42 communicate by passage 43, and driving disc 5 and driven disc 6 are positioned at drive cavity 41, is provided with pressurization oar 9 in the pressurizing chamber 42, and pressurization oar 9 links to each other with line shaft 1.Pressurizing chamber 42 diminishes gradually with the opening at passage 43 places of communicating.Pressurization oar 9 comprises oar body 91, and blade 92 is connected on the oar body 91.Blade 92 is the 8-16 sheet.Cover has bearing on the line shaft 1, and the outer ring of bearing links to each other with fixed cover 2.Output disc 3 is provided with filling opening, is provided with liquid feeding plug screw 31 in the described filling opening.Pressurization oar 9 is fixedly connected with line shaft 1 by Cock screw, also is provided with lock bolt 32 on the output disc 3, and an end of lock bolt 32 is provided with for the locking slot 321 of locking with output disc 3, and lock bolt 32 overcoats have Sealing.Driven disc 6 connects rotary disks 61, rotary disk 61 output disc 3 that is connected.Cover has seal ring on the line shaft 1, and the outer ring of seal ring is arranged in the rotary disk 61.
The present embodiment middle (center) bearing can be selected deep groove ball bearing, in fixed cover 2, be provided with two bearings, in rotary disk 61, also be provided with a bearing, can separate with back-up ring between bearing and the bearing, and an end is located an end with snap ring and located with step in fixed cover 2 and rotary disk 61.Output disc 3 is large with the area of contact of cavity 4, also has the effect of heat radiation, thus should select the good material of lightweight permeability to heat, such as aluminum alloy.
Magnetic rheological liquid when positive 7, negative 8 coil no electric circuit in the drive cavity 41 exists with the form of common liq, and driving disc 5 separates with driven disc 6, and output disc 3 does not obtain power.After energising, magnetic rheological liquid becomes the class solid state, and driving disc 5 and driven disc 6 are engaged, and output disc 3 obtains power.So moving in circles of switching electricity just can be controlled separating and combination of driving disc 5 and driven disc 6.When complete machine lost efficacy, lock bolt 32 is screwed in, its Cock screw with fixing pressurization oar 9 is contacted, thereby with transmitting out on the direct driven mechanical axis 1 of moment of torsion, so that the Security of the present embodiment has larger assurance.
Claims (7)
1. magnetic rheopectic solution fan clutch, comprise line shaft (1), fixed cover (2) and output disc (3), it is characterized in that: be provided with the cavity (4) that is filled with magnetic rheological liquid between described fixed cover (2) and the output disc (3), fill in the described cavity (4) and be provided with driving disc (5) and driven disc (6), described line shaft (1) drives driving disc (5), described driven disc (6) driver output dish (3), be provided with the opposite positive coil (7) of pole polarity and negative wire circle (8) in the described fixed cover (2), be provided with every disk (21) between described positive coil (7) and the negative wire circle (8); Described cavity (4) comprises drive cavity (41) and pressurizing chamber (42), described drive cavity (41) and pressurizing chamber (42) communicate by passage (43), described driving disc (5) and driven disc (6) are positioned at drive cavity (41), be provided with pressurization oar (9) in the described pressurizing chamber (42), described pressurization oar (9) links to each other with line shaft (1); Described pressurizing chamber (42) diminishes gradually with the opening at passage (43) place of communicating; Described pressurization oar (9) comprises oar body (91), and blade (92) is connected on the described oar body (91).
2. a kind of magnetic rheopectic solution fan clutch according to claim 1, it is characterized in that: described blade (92) is the 8-16 sheet.
3. according to claim 1 to 2 arbitrary described a kind of magnetic rheopectic solution fan clutchs, it is characterized in that: the upper cover of described line shaft (1) has bearing, and the outer ring of described bearing links to each other with fixed cover (2).
4. according to claim 1 to 2 arbitrary described a kind of magnetic rheopectic solution fan clutchs, it is characterized in that: described output disc (3) is provided with filling opening, is provided with liquid feeding plug screw (31) in the described filling opening.
5. according to claim 1 to 2 arbitrary described a kind of magnetic rheopectic solution fan clutchs, it is characterized in that: described pressurization oar (9) is fixedly connected with line shaft (1) by Cock screw, also be provided with lock bolt (32) on the described output disc (3), one end of described lock bolt (32) be provided with for and the locking slot (321) of output disc (3) locking, described lock bolt (32) overcoat has Sealing.
6. according to claim 1 to 2 arbitrary described a kind of magnetic rheopectic solution fan clutchs, it is characterized in that: described driven disc (6) connects rotary disk (61), described rotary disk (61) output disc (3) that is connected.
7. a kind of magnetic rheopectic solution fan clutch according to claim 6 is characterized in that: the upper cover of described line shaft (1) has seal ring, the outer ring of described seal ring to be arranged in the rotary disk (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267475 CN102312939B (en) | 2011-09-09 | 2011-09-09 | Clutch of magneto rheological fluid (MRF) fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110267475 CN102312939B (en) | 2011-09-09 | 2011-09-09 | Clutch of magneto rheological fluid (MRF) fan |
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| Publication Number | Publication Date |
|---|---|
| CN102312939A CN102312939A (en) | 2012-01-11 |
| CN102312939B true CN102312939B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110267475 Active CN102312939B (en) | 2011-09-09 | 2011-09-09 | Clutch of magneto rheological fluid (MRF) fan |
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| CN (1) | CN102312939B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351074B (en) * | 2015-12-01 | 2017-12-19 | 重庆理工大学 | A kind of variable volume percentage magnetic rheopectic solution fan clutch |
| CN105952810B (en) * | 2016-07-07 | 2018-01-26 | 重庆理工大学 | Electromagnetism extrudes tapered magnetic flow liquid self-pressurization clutch |
| CN110778618B (en) * | 2019-11-18 | 2021-03-09 | 重庆理工大学 | Automatic clutch of cylindrical variable-volume magnetorheological fan |
| CN112503113B (en) * | 2020-12-15 | 2021-08-06 | 吉林大学 | Self-adjusting rectangular limiting clutch based on magnetorheological fluid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2614668A (en) * | 1949-07-07 | 1952-10-21 | B A Waderlow And Co | Fluid magnetic clutch |
| GB734049A (en) * | 1953-03-27 | 1955-07-20 | Eaton Mfg Co | Improvements in or relating to an electromagnetic disk clutch |
| US7083030B2 (en) * | 2003-02-03 | 2006-08-01 | Magna Drivertrain Of America, Inc. | Torque transfer coupling with magnetorheological clutch actuator |
| CN201144989Y (en) * | 2007-10-26 | 2008-11-05 | 广东工业大学 | High-efficiency brake based on magnetic fluid deformation technique |
| 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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- 2011-09-09 CN CN 201110267475 patent/CN102312939B/en active Active
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| CN102312939A (en) | 2012-01-11 |
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Effective date of registration: 20201130 Address after: 226200 No. 46 Industrial Park, Nanyang Town, Nantong, Jiangsu, Qidong Patentee after: Qidong plant medical equipment factory Address before: 313000, No. seven standard factory building, Wuxing science and technology innovation garden, eight Li District, Wuxing District, Zhejiang, Huzhou Patentee before: HUZHOU BELORD DRIVE TECHNOLOGY Co.,Ltd. |
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