CN101915277B - Uniwafer three-disk magnetic rheological clutch - Google Patents
Uniwafer three-disk magnetic rheological clutch Download PDFInfo
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- CN101915277B CN101915277B CN2010102330489A CN201010233048A CN101915277B CN 101915277 B CN101915277 B CN 101915277B CN 2010102330489 A CN2010102330489 A CN 2010102330489A CN 201010233048 A CN201010233048 A CN 201010233048A CN 101915277 B CN101915277 B CN 101915277B
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- driven member
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- magnetorheological
- clutch
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Abstract
The invention discloses a uniwafer three-disk magnetic rheological clutch which comprises a drive shaft (1), a driven shaft (2), a drive disk (11), a magnet exciting coil (4), a magneto rheological left disk channel (9), a magneto rheological right disk channel (8), a magneto rheological circular channel (7), a left shell (14), a left driven member (15), a right shell (17), a right driven member (16), a drive disk magnetism-isolating copper ring (10), a driven member magnetism-isolating copper ring (5), an angle contact ball bearing (3), a thrust ball bearing (12), a magneto rheological liquid (20) and a sealing device, wherein the drive disk (11) is positioned in a cavity surrounded by the left driven member (15), the right driven member (16) and a driven connecting member (6), and the magneto rheological liquid is filled in the cavity; and magnetic fields vertical to three disk surfaces of the drive disk (11) pass through the same, which can more effectively develop magneto rheological effect. The invention overcomes the defects of slow response, easy abrasion, large noise, more heat generation, unstable control and the like of the traditional clutch, and has the advantages of smaller volume, bigger drive torque, simpler structural design and less power consumption compared with the traditional magneto rheological clutch.
Description
Technical field
The present invention relates generally to a kind of gearing device, especially relates to a kind of clutch device that adopts magnetic flow liquid to produce driving torque.
Background technique
Clutch is to connect the device of master and slave moving part with transferring power or motion, and it can guarantee the automobile balance starting; Realize smooth-going gearshift in the process of moving; , automobile emergency prevents the power train overload when braking.Traditional clutch generally has friction clutcch, several kinds of forms such as fluid torque converter (fluid coupling), magnetic clutch, and wherein friction clutcch is divided into two kinds of wet type and dry types again.There is fault such as skid, malsegregation, starting are shaken, abnormal sound and pedal are heavy in traditional clutch automobilism; These faults are due to the clutch abrasion more than 50%; And be main with the wearing and tearing of clutch friction plate, have a strong impact on the working life of clutch and the stability of car transmissions.Therefore problem how to improve clutch abrasion just seems particularly crucial.In the clutch of our design; Because between driving disc and driven disc, added the medium magnetic flow liquid, avoided original direct contact type friction, effectively reduced wearing and tearing; So can significantly improve the working life of clutch, be a direction of clutch research and development.
Magnetic flow liquid (Magneto-rheological Fluid; Be called for short MRF) be a kind of intellectual material of excellent performance; Be called " controlled fluid " again; Characteristics such as have the intensity height, viscosity is low, energy requirement is little, temperature stability is good can become shear yield stress higher Bingham plastomer or viscoelastic body by Newtonian fluid in the moment of Millisecond under the action of a magnetic field adding, and this transformation are continuous, reversible.
Magnetic rheological clutch according to the magnetic rheology effect design is a kind of engaging and disengaging gear of new generation that is applicable to the mechanical devices transmission; Have compact structure, low in energy consumption, advantage such as shear yield stress is big, dynamic range is wide, speed of response is fast; Its transmission capacity can be controlled through the magnetic field size that adjusting adds, and makes driving mechanism reach transmission effect preferably.According to the rheological effect of magnetic flow liquid and the analysis of its speed change transmission; We are not difficult to draw the transmission of magnetic flow liquid speed change has following characteristics: (1) controllability is strong: can be through control and the adjusting to adding magnetic intensity; Produce magnetic rheology effect, realize step-less adjustment fast torque transmitted; (2) highly sensitive: the characteristics by magnetic rheology effect can know that magnetic flow liquid is a millisecond rank to the response time of changes of magnetic field, therefore also have quite high sensitivity for the speed change transmission; (3) effectively reduce wearing and tearing between mechanical part: used after the magnetic flow liquid, owing to avoided the direct metal friction between machinery, so prolonged the working life of main working parts greatly; (4) low noise: be owing to avoided direct metal friction equally, move so the parts of magnetic flow liquid transmission all can satisfy low noise; (5) stability is high: through externally-applied magnetic field is reasonably arranged and regulated, can make steadily running between the parts.
A lot of scientific research departments and research institution explore and study magnetic rheological clutch, and external magnetic rheological clutch patent has: U.S. Pat 005,845; 753A, US005,823,309A, US005; 845,752A, European patent EP 0776813A1 and EP0879973; Domestic patent: CN00104451.6 disclosed " radially self-pressurizing clutch with magnetic rheologic liquid ", CN03135802.0 disclosed " magnetorheological buncher ", CN200410084576.7 disclosed " rotary magnetic rheological brake ", CN01137376.6 disclosed " centrifugal magnetofluid clutch " etc.; They have overcome the shortcoming of conventional clutch; The structure citation form that is adopted is a disc type; Drum type; These three kinds of patterns of circular cone type, and in order to reach higher driving torque, general adopt increase lobe numbers, reduce the working clearance, to magnetic flow liquid this several method of exerting pressure; The clutch of these designs exists volume bigger, the problem of complex structural designs, processing-installation-dismounting inconvenience.
Summary of the invention
Technical problem: to the problem of existing technology existence; The present invention relates to a kind of disc type and two kinds of mode of operations of drum type unified in the uniwafer three-disk magnetic rheological clutch of one; Compare with existing magnetic rheological clutch, its volume is littler, driving torque is bigger, structural design is simpler, power consumpiton is littler.
Technological scheme: a kind of uniwafer three-disk magnetic rheological clutch of the present invention comprises that driving shaft, driven shaft, driving disc, field coil, magnetorheological left disk passage, magnetorheological right disk passage, magnetorheological circular ring path, left shell, left driven member, right shell body, right driven member, driving disc are at a distance from magnetic copper ring, the separated magnetic copper ring of driven member, angular contact ball bearing, thrust ball bearing and seal arrangement; Driving shaft, driving disc, driving disc are combined into active body at a distance from the magnetic copper ring, and driving shaft is connected through key with driving disc, and driving disc is arranged in left and right active disc inside at a distance from the magnetic copper ring, and left and right active disc connects through pin; Left shell, left driven member and driven member surround left driven member at a distance from the magnetic copper ring; Right shell body, right driven member, driven shaft and driven member surround right driven member at a distance from the magnetic copper ring; Be two field coils in two cavitys that both surrounded, left and right driven member is combined into driven member through driven link connection; Be connected with thrust ball bearing through the angular contact ball bearing that is arranged on the driving shaft between active body and the driven member; Service aisle between active body and the driven member is formed by magnetorheological left disk passage, magnetorheological right disk passage and three combination of channels of magnetorheological circular ring path, and the big I of these three path clearances is adjusted according to actual requirement of engineering; In these three service aisles, be filled with magnetic flow liquid; Reasonable Arrangement is at a distance from the magnetic copper ring in active body, driven member; Can form field circuit like Fig. 3; This makes in three service aisles in the clutch all has magnetic field to pass through; Be effective passage, thereby improve the utilization efficiency of single driving disc, brought into play the effective working ability of single card to greatest extent; Two inner field coils of driven member are connected to lead respectively and are connected with external power supply, and the coiling direction of two field coils is all identical with the feeding current direction; The liquid filling hole of band sealing screw is set, the replacing of magnetic flow liquid in the convenient magnetorheological service aisle on driven link; The carbon brush of oriented outer process and wire guide on right shell body, the lead of field coil is connected on the carbon brush slip-ring through wire guide.
Compared with prior art, the present invention has the following advantages:
1, the present invention combines the two advantage of existing disc type magnetic rheological clutch and drum type magnetic rheological clutch; Can effectively utilize the work card of clutch; More effectively bring into play the characteristic of magnetic flow liquid, its volume is littler than disc type magnetic rheological clutch and drum type magnetic rheological clutch,, driving torque is bigger, structural design is simpler, power consumpiton is littler.
2, the present invention compares with existing patent of invention; Made full use of the work card, several separated magnetic copper rings simply have been set on the work card, a working disk has been told magnetorheological left disk passage, magnetorheological right disk passage, magnetorheological circular ring path; Realized that the whole service aisles between driving disc and the driven member all have uniform magnetic field to pass through; Magnetic flow liquid in three service aisles all can be brought into play maximum efficiency, has improved the utilization ratio of single driving disc, under the identical situation of volume; The present invention has bigger driving force, has brought into play the effective working ability of single card to greatest extent.
3, the present invention's, size of each main member better than the transmission performance of conventional mechanical formula clutch and traditional magnetic rheological clutch, gap can freely be adjusted according to actual requirement of engineering.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the driving shaft and the driving disc schematic representation of clutch of the present invention;
Fig. 3 is a clutch magnetic circuit schematic representation of the present invention.
Among the figure:
1-driving shaft 12-thrust ball bearing
2-driven shaft 13-carbon brush
3-angular contact ball bearing 14-left shell
4-field coil 15-left side driven member
The 5-driven member is at a distance from the right driven member of magnetic copper ring 16-
The driven link 17-of 6-right shell body
The magnetorheological circular ring path 18-wire guide of 7-
The magnetorheological right disk passage 19-liquid filling hole of 8-
The magnetorheological left disk passage 20-magnetic flow liquid of 9-
The 10-driving disc is at a distance from magnetic copper ring 21-O RunddichtringO
The 11-driving disc
Embodiment
Below in conjunction with accompanying drawing the present invention is explained further details.
A kind of uniwafer three-disk magnetic rheological clutch as shown in Figure 1; It comprises that driving shaft (1), driven shaft (2), driving disc (11), field coil (4), magnetorheological left disk passage (9), magnetorheological right disk passage (8), magnetorheological circular ring path (7), left shell (14), left driven member (15), right shell body (17), right driven member (16), driving disc are at a distance from magnetic copper ring (10), the separated magnetic copper ring (5) of driven member, angular contact ball bearing (3), thrust ball bearing (12), magnetic flow liquid (20) and seal arrangement; It is characterized in that: driving shaft (1), driving disc (11), driving disc are combined into active body at a distance from magnetic copper ring (10), and the structural type of driving shaft (1) and driving disc (11) is as shown in Figure 2; Driving shaft (1) is connected through key with driving disc (11), and driving disc is arranged in left and right active disc inside at a distance from magnetic copper ring (10), and left and right active disc connects through pin; Left shell (14), left driven member (15) and driven member surround left driven member at a distance from magnetic copper ring (5); Right shell body (17), right driven member (16), driven shaft (2) and driven member surround right driven member at a distance from magnetic copper ring (5); Be two field coils (4) in two cavitys that both surrounded, left and right driven member is combined into driven member through driven link (6) connection; Be connected with thrust ball bearing (12) through the angular contact ball bearing (3) that is arranged on the driving shaft between active body and the driven member; Service aisle between active body and the driven member is formed by magnetorheological left disk passage (9), magnetorheological right disk passage (8) and (7) three combination of channels of magnetorheological circular ring path, and the big I of these three path clearances is adjusted according to actual requirement of engineering; In these three service aisles, be filled with magnetic flow liquid (20); Reasonable Arrangement can form the field circuit like Fig. 3 at a distance from the magnetic copper ring in active body, driven member, and this makes in three service aisles in the clutch all has magnetic field to pass through, thereby improves the utilization efficiency of single driving disc; Inner two field coils (4) of driven member are connected to lead respectively and are connected with external power supply, and the coiling direction of two field coils (4) is all identical with the feeding current direction; The liquid filling hole (19) of band sealing screw is set, the replacing of magnetic flow liquid (20) in the convenient magnetorheological service aisle on driven link (6); Carbon brush of oriented outer process (13) and wire guide (18) on right shell body, the lead of field coil is connected on the carbon brush slip-ring through wire guide (18).
Working principle: uniwafer three-disk magnetic rheological clutch of the present invention is made up of the service aisle that active body, driven member, active body and driven member surround.Driving shaft, driving disc, driving disc are combined into active body at a distance from the magnetic copper ring; Left shell, left driven member and driven member surround left driven member at a distance from the magnetic copper ring; Right shell body, right driven member, driven shaft and driven member surround right driven member at a distance from the magnetic copper ring; Be two field coils in two cavitys that both surrounded, left and right driven member is combined into driven member through driven link connection; Service aisle between active body and the driven member is formed by magnetorheological left disk passage, magnetorheological right disk passage and three combination of channels of magnetorheological circular ring path, in three service aisles, is filled with magnetic flow liquid.When driving shaft receives active force and is rotated; If no current passes through in the field coil, then the shear yield strength of magnetic flow liquid equals the initial viscosity of magnetic flow liquid, and its value is very little; This moment, secondary part can not rotate because of the rotation of driving shaft basically, and the clutch output torque is zero; If have electric current to pass through in the field coil; Then magnetic flow liquid " sclerosis "-magnetic rheology effect occurs owing to producing magnetic field in the working clearance; Thereby performance has certain shear yield stress; This moment, follower branch rotated because of the rotation of driving shaft, and the size of clutch output torque is by feeding the size of current decision in the field coil.The magnetic circuit that field coil is produced behind the feeding electric current in the clutch is as shown in Figure 3; The magnetic Circuit Design of the magnetic rheological clutch that this magnetic circuit design method is different from the past; Through driving disc at a distance from the separated magnetic copper ring of magnetic copper ring and the driven member reasonable Arrangement on card separately respectively; Make driving disc these three passages of magnetorheological left disk passage, magnetorheological right disk passage and magnetorheological circular ring path on every side all have magnetic field to pass through; Improve the utilization ratio of single driving disc, thereby brought into play the effective working ability of single card to greatest extent, overcome the shortcoming of traditional magnetic rheological clutch; Can only utilize magnetic field like the disc type magnetic rheological clutch, and the drum type magnetic rheological clutch can only partly utilize the magnetic field through disk ring through disc face.In concrete mechanical structure; Take all factors into consideration mechanical requirements transmission capacity and the characteristic of itself; The structural type of appropriate design magnetic rheological clutch (comprising the diameter of magnetorheological maximum shear yield strength, coil turn, magnet case material, NULL, service aisle effective length, working clearance, clutch driving shaft etc.) is to reach desirable transmission effect.
Claims (3)
1. uniwafer three-disk magnetic rheological clutch; Comprise that driving shaft (1), driven shaft (2), driving disc (11), field coil (4), magnetorheological left disk passage (9), magnetorheological right disk passage (8), magnetorheological circular ring path (7), left shell (14), left driven member (15), right shell body (17), right driven member (16), driving disc, is characterized in that at a distance from magnetic copper ring (5), angular contact ball bearing (3), thrust ball bearing (12), magnetic flow liquid (20) and seal arrangement at a distance from magnetic copper ring (10), driven member: driving shaft (1), driving disc (11), driving disc are combined into active body at a distance from magnetic copper ring (10); Left shell (14), left driven member (15) and driven member surround left driven member at a distance from magnetic copper ring (5); Right shell body (17), right driven member (16), driven shaft (2) and driven member surround right driven member at a distance from magnetic copper ring (5); In two cavitys that a left side driven member and right driven member are surrounded is two field coils (4), and left and right driven member is combined into driven member through driven link (6) connection; Service aisle between active body and the driven member is formed by magnetorheological left disk passage (9), magnetorheological right disk passage (8) and (7) three effective combination of channels of magnetorheological circular ring path, in three service aisles, is filled with magnetic flow liquid (20).
2. a kind of uniwafer three-disk magnetic rheological clutch according to claim 1 is characterized in that: inner two field coils (4) of driven member are connected to lead respectively and are connected with external power supply, and the coiling direction of field coil (4) is all identical with the feeding current direction.
3. a kind of uniwafer three-disk magnetic rheological clutch according to claim 1 is characterized in that: the adjustable gaps of magnetorheological left disk passage (9), magnetorheological right disk passage (8) and (7) three passages of magnetorheological circular ring path is whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102330489A CN101915277B (en) | 2010-07-21 | 2010-07-21 | Uniwafer three-disk magnetic rheological clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102330489A CN101915277B (en) | 2010-07-21 | 2010-07-21 | Uniwafer three-disk magnetic rheological clutch |
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| CN101915277A CN101915277A (en) | 2010-12-15 |
| CN101915277B true CN101915277B (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102330489A Expired - Fee Related CN101915277B (en) | 2010-07-21 | 2010-07-21 | Uniwafer three-disk magnetic rheological clutch |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297213B (en) * | 2011-08-30 | 2013-05-08 | 江苏大学 | Multi-plate magnetorheological soft start device |
| CN102359513B (en) * | 2011-10-31 | 2013-01-02 | 徐州五洋科技股份有限公司 | Water-cooled magnetorheological soft start device |
| EP2888497B1 (en) | 2012-08-23 | 2017-06-28 | Pierburg Pump Technology GmbH | Mechanical combustion-engine-driven fluid pump |
| US9976606B2 (en) | 2012-08-23 | 2018-05-22 | Pierburg Pump Technology Gmbh | Mechanical combustion-engine-driven fluid pump |
| CN111810556B (en) * | 2020-07-20 | 2024-04-26 | 中国矿业大学 | Hydraulic extrusion type magnetorheological fluid clutch |
| CN113531081B (en) * | 2021-06-29 | 2022-12-23 | 南京工诺科技有限公司 | Hydraulic coupler based on magnetorheological fluid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0000606D0 (en) * | 2000-02-23 | 2000-02-23 | Abb Ab | Device by robot |
| US6655743B1 (en) * | 2002-04-11 | 2003-12-02 | Island Pyrochemical Industries Corp. | Electronically controlled seat belt module |
| CN201144989Y (en) * | 2007-10-26 | 2008-11-05 | 广东工业大学 | High-efficiency brake based on magnetic fluid deformation technique |
| CN101592195B (en) * | 2009-06-15 | 2010-10-20 | 杭州电子科技大学 | Transmission device based on magneto-rheological fluid |
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| CN101915277A (en) | 2010-12-15 |
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