CN103089863A - Radial extrusion type magnetorheological fluid brake - Google Patents
Radial extrusion type magnetorheological fluid brake Download PDFInfo
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- CN103089863A CN103089863A CN2013100283896A CN201310028389A CN103089863A CN 103089863 A CN103089863 A CN 103089863A CN 2013100283896 A CN2013100283896 A CN 2013100283896A CN 201310028389 A CN201310028389 A CN 201310028389A CN 103089863 A CN103089863 A CN 103089863A
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Abstract
The invention discloses a radial extrusion type magnetorheological fluid brake, and belongs to the field of hydraulic resistance brakes. On the basis of an existing device, a right guiding magnetic brake outer shell, a pressurization device, a coil fixing ring, pressurization channels, a right magnet exciting coil and a separation magnet ring are added to the brake, wherein the right guiding magnetic brake outer shell is arranged on the right of a left guiding magnetic brake outer shell, a gap is reserved between the right guiding magnetic brake outer shell and the left guiding magnetic brake outer shell, and the pressurization device is arranged on the outer circumference of the right guiding magnetic brake outer shell; a magnetorheological fluid gap is formed between a driving shaft and the right guiding magnetic brake outer shell, the other magnetorheological fluid gap is formed between the driving shaft and the left guiding magnetic brake outer shell, and a left magnet exciting coil, the right magnet exciting coil and the separation magnet ring are arranged in the gap formed between the right guiding magnetic brake outer shell and the left guiding magnetic brake outer shell; and the left magnet exciting coil and the right magnet exciting coil are fixed through the coil fixing ring, the pressurization channels are respectively arranged on the right guiding magnetic brake outer shell, the coil fixing ring and the separation magnet ring. The radial extrusion type magnetorheological fluid brake is simple in assembling and compact in structure, provides large braking torque, meanwhile enhances device reliability, and reduces energy consumption.
Description
Technical field
The present invention relates to a kind of magneto-rheologic liquid brake, a kind of radial extrusion type magneto-rheologic liquid brake specifically belongs to fluid power drag brake field.
Background technique
Magnetic flow liquid is a kind of New Magnetic Field Controlled functional material, and it is comprised of base fluid, magnetic-particle and dispersing agent.Without externally-applied magnetic field the time, show as well behaved Newtonian fluid; Adding under magnetic fields, presenting the mechanical property of similar solid, and this viscosity to change be continuous reversible, namely in case after removing magnetic field, becoming again can flowing liquid.Magnetic rheology effect is continuous, reversible, rapid and be easy to control owing to having, and makes magnetic flow liquid obtain using more and more widely in association areas such as machineries.
Magneto-rheologic liquid brake is important branch of magnetorheological device, can be converted into braking force according to the performance of magnetic flow liquid, wherein, braking moment is to weigh the braking force size of magneto-rheologic liquid brake and an important indicator of Applicable scope, how to improve braking moment and becomes an important research direction in this field at present.Publication number is the Chinese invention patent on 03 17th, 2004 disclosed a kind of " the rotary magnetic rheological liquid break of structurally variable " of CN1482376, adopts double disk structure to increase work efficiency, and increases braking moment; Publication number is the Chinese invention patent on 08 10th, 2011 disclosed a kind of " multiple-disc type magnetorheological brake " of CN102146968A, increases field current by changing coil quantity, thereby increases braking moment.Above-mentioned two modes, the quantity that the former increases brake disc can make the difficulty of processing of break increase, and structure is compact not; The latter is in the process of the size that increases field current, and when magnetic flow liquid reached magnetic saturation, braking moment can not increase, DeGrain, and endurance is inadequate, and energy consumption is larger.In sum, how can be in the braking moment that improves magneto-rheologic liquid brake the assembling of assurance device simple, compact structure, and can reduce power consumption and become the new problem in this field.
Summary of the invention
For the problem of above-mentioned existence, the invention provides a kind of radial extrusion type magneto-rheologic liquid brake, assembling is simple, compact structure, when larger braking moment was provided, the reliability of intensifier reduced energy consumption.
to achieve these goals, the technical solution used in the present invention is: a kind of radial extrusion type magneto-rheologic liquid brake, comprise liquid outlet, tapered roller bearing, transmission shaft, seal ring, left end cap, locking nut, bearing support, set screw, rotating seal ring, liquid entering hole, left magnetic conductive shell and left field coil, transmission shaft is connected with bearing support by paired tapered roller bearing, locking nut is locked at tapered roller bearing on transmission shaft, bearing support is fastened on left magnetic conductive shell by set screw and rotating seal ring, fixedly left end cap is provided with seal ring, and be fixed on the left end of bearing support by fastening screw trip bolt, left magnetic conductive shell is provided with liquid entering hole and liquid outlet, on the basis of said apparatus, the present invention has also increased right magnetic conductive brake shell, pressurization device, the coil retaining ring, pressurization passageway, right field coil, magnetic flow liquid passage and magnetism resistent ring, wherein, right magnetic conductive brake shell is arranged on left magnetic conductive shell right side, between leave the space, its excircle is provided with pressurization device, form two magnetic flow liquid gaps between driving shaft and left magnetic conductive shell and right magnetic conductive brake shell, field coil, right field coil and magnetism resistent ring are arranged in the space that consists of between right magnetic conductive brake shell and left magnetic conductive shell, wherein, fix by the coil retaining ring between left field coil and right field coil, pressurization passageway is separately positioned on right magnetic conductive brake shell, on coil retaining ring and magnetism resistent ring.
Further, magnetic conductive brake shell excircle evenly is provided with three pressurization devices.
Further, also comprise pressure transducer, pressure transducer is arranged on right magnetic conductive brake shell.
Compared with prior art, the present invention has adopted radially pressure structure, lateral extrusion enhancement effect based on magnetic flow liquid, on left magnetic conductive shell right side, right magnetic conductive brake shell is set, at right magnetic conductive brake shell excircle, pressurization device is set simultaneously, when braking moment is not enough, in the situation that in the gap, magnetic flow liquid solidifies, use pressurization device to apply extruding force perpendicular to magnetic direction to the work magnetic flow liquid, increased substantially the shearing stress of magnetic flow liquid, and then improved braking moment; Simultaneously, form two magnetic flow liquid gaps between driving shaft and left magnetic conductive shell, right magnetic conductive brake shell, forms two-sided magnetic flow liquid gap brake structure, shearing force is the double of single magnetic flow liquid interval work face, has improved the braking moment of installing; On above-mentioned improved basis, the present invention is provided with magnetism resistent ring in the space between left magnetic conductive shell and right magnetic conductive brake shell, make the magnetic line of force all by the magnetic flow liquid gap to reduce leakage field, and make the magnetic flow liquid in the inoperative gap be in liquid state, being convenient to transmission of pressure makes the magnetic flow liquid that solidifies in the gap be in radially pressurized state, further guaranteed the braking effect of device, assembling is simple, compact structure, when larger braking moment is provided, strengthen the reliability of device, reduced energy consumption.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that A-A is to schematic diagram.
In figure: 1, liquid outlet, 2, tapered roller bearing, 3, driving shaft, 4, seal ring, 5, left end cap, 6, locking nut, 7, bearing support, 8, set screw, 9, rotating seal ring, 10, liquid entering hole, 11, left magnetic conductive shell, 12, fastening screw trip bolt, 13, left field coil, 14, right magnetic conductive brake shell, 15, pressurization device, 16, coil retaining ring, 17, pressurization passageway, 18, right field coil, 19, magnetic flow liquid passage, 20, magnetism resistent ring, 21, the magnetic flow liquid working clearance, 22, pressure transducer.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
as shown in Figure 1, this radial extrusion type magneto-rheologic liquid brake, comprise liquid outlet 1, tapered roller bearing 2, transmission shaft 3, seal ring 4, left end cap 5, locking nut 6, bearing support 7, set screw 8, rotating seal ring 9, liquid entering hole 10, left magnetic conductive shell 11 and left field coil 13, transmission shaft 3 is connected with bearing support 7 by paired tapered roller bearing 2, locking nut 6 is locked at tapered roller bearing 2 on transmission shaft 3, bearing support 7 is fastened on left magnetic conductive shell 11 by set screw 8 and rotating seal ring 9, fixedly left end cap 5 is provided with seal ring 4, and be fixed on the left end of bearing support 7 by fastening screw trip bolt, left magnetic conductive shell 11 is provided with liquid entering hole 10 and liquid outlet 1, on the basis of said apparatus, the present invention also is provided with right magnetic conductive brake shell 14, pressurization device 15, coil retaining ring 16, pressurization passageway 17, right field coil 18, magnetic flow liquid passage 19, magnetism resistent ring 20 and magnetic flow liquid working clearance 21, wherein, right magnetic conductive brake shell 14 is arranged on left magnetic conductive shell 11 right sides, between leave the space, its excircle is provided with pressurization device 15, driving shaft 5 and left magnetic conductive shell 11, form two magnetic flow liquid gaps 21 between right magnetic conductive brake shell 14, field coil 13, right field coil 18 and magnetism resistent ring 20 are arranged in the space that consists of between right magnetic conductive brake shell 14 and left magnetic conductive shell 11, wherein, fixing by coil retaining ring 16 between left field coil 13 and right field coil 18, pressurization passageway 17 is separately positioned on right magnetic conductive brake shell 14, on coil retaining ring 16 and magnetism resistent ring 20.
As improvement of the present invention, as shown in Figure 2, magnetic conductive brake shell 14 excircles evenly are provided with three pressurization devices 15, further strengthen the work magnetic flow liquid and apply extruding force perpendicular to magnetic direction, improve the shearing stress of magnetic flow liquid, thereby strengthened the braking moment of device.
As another improvement of the present invention, also increased pressure transducer 22 in device, and pressure transducer 22 has been arranged on right magnetic conductive brake shell 14, be used for measuring institute's plus-pressure size, be convenient to device is monitored and adjusted, further improve the reliability of device.
in the course of the work, at first this device makes magnetic flow liquid be full of magnetic flow liquid passage 19 by liquid entering hole 10, magnetic flow liquid gap 21 and pressurization passageway 17, then pass into electric current at left field coil 13 and right field coil 19, make the magnetic flow liquid gap 21 certain magnetic induction intensity of interior generation, thereby can becoming rapidly the class solid, the interior magnetic flow liquid in gap 21 provides necessary braking moment, the large I that increases electric current improves the braking moment of break, when magnetic induction intensity is intimate saturated, use the magnetic flow liquid in 15 pairs of devices of pressurization device to pressurize, owing to not having the magnetic line of force in magnetic flow liquid passage 19 and pressurization passageway 17, magnetic flow liquid is in liquid state, pressure can transmit along all directions, thereby the magnetic flow liquid of the curing in magnetic flow liquid gap 21 is produced extruding perpendicular to magnetic direction.
In conjunction with working procedure, the present invention is by adopting radially pressure structure, lateral extrusion enhancement effect based on magnetic flow liquid, on left magnetic conductive shell 11 right sides, right magnetic conductive brake shell 14 is set, simultaneously at right magnetic conductive brake shell 14 excircles, pressurization device 15 is set, when braking moment is not enough, in the situation that in the gap, magnetic flow liquid solidifies, 15 pairs of work magnetic flow liquids of use pressurization device apply the extruding force perpendicular to magnetic direction, increase substantially the shearing stress of magnetic flow liquid, and then improved braking moment; Simultaneously, form two magnetic flow liquid gaps between driving shaft 3 and left magnetic conductive shell 11, right magnetic conductive brake shell 14, forms two-sided magnetic flow liquid gap brake structure, shearing force is the double of single magnetic flow liquid interval work face, has improved the braking moment of installing; On above-mentioned improved basis, the present invention is provided with magnetism resistent ring 20 in the space between left magnetic conductive shell 11 and right magnetic conductive brake shell 14, make the magnetic line of force all by the magnetic flow liquid gap to reduce leakage field, and make the magnetic flow liquid in the inoperative gap be in liquid state, being convenient to transmission of pressure makes the magnetic flow liquid that solidifies in the gap be in radially pressurized state, further guaranteed the braking effect of device, and assembling is simple, compact structure, when larger braking moment is provided, strengthen the reliability of device, reduced energy consumption.
Claims (3)
1. radial extrusion type magneto-rheologic liquid brake, comprise liquid outlet (1), tapered roller bearing (2), transmission shaft (3), seal ring (4), left end cap (5), locking nut (6), bearing support (7), set screw (8), rotating seal ring (9), liquid entering hole (10), left magnetic conductive shell (11) and left field coil (13), transmission shaft (3) is connected with bearing support (7) by paired tapered roller bearing (2), locking nut (6) is locked at tapered roller bearing (2) on transmission shaft (3), bearing support (7) is fastened on left magnetic conductive shell (11) by set screw (8) and rotating seal ring (9), fixedly left end cap (5) is provided with seal ring (4), and be fixed on the left end of bearing support (7) by fastening screw trip bolt, left magnetic conductive shell (11) is provided with liquid entering hole (10) and liquid outlet (1), it is characterized in that, also comprise right magnetic conductive brake shell (14), pressurization device (15), coil retaining ring (16), pressurization passageway (17), right field coil (18), magnetic flow liquid passage (19) and magnetism resistent ring (20), described right magnetic conductive brake shell (14) is arranged on left magnetic conductive shell (11) right side, between leave the space, its excircle is provided with pressurization device (15), form two magnetic flow liquid gaps (21) between driving shaft (5) and left magnetic conductive shell (11) and right magnetic conductive brake shell (14), described field coil (13), right field coil (18) and magnetism resistent ring (20) are arranged in the space that consists of between right magnetic conductive brake shell (14) and left magnetic conductive shell (11), wherein, fixing by coil retaining ring (16) between left field coil (13) and right field coil (18), described pressurization passageway (17) is separately positioned on right magnetic conductive brake shell (14), on coil retaining ring (16) and magnetism resistent ring (20).
2. a kind of radial extrusion type magneto-rheologic liquid brake according to claim 1, is characterized in that, described magnetic conductive brake shell (14) excircle evenly is provided with three pressurization devices (15).
3. a kind of radial extrusion type magneto-rheologic liquid brake according to claim 1, is characterized in that, also comprises pressure transducer (22), and pressure transducer (22) is arranged on right magnetic conductive brake shell (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028389.6A CN103089863B (en) | 2013-01-25 | 2013-01-25 | Radial extrusion type magnetorheological fluid brake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028389.6A CN103089863B (en) | 2013-01-25 | 2013-01-25 | Radial extrusion type magnetorheological fluid brake |
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| CN103089863A true CN103089863A (en) | 2013-05-08 |
| CN103089863B CN103089863B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310028389.6A Expired - Fee Related CN103089863B (en) | 2013-01-25 | 2013-01-25 | Radial extrusion type magnetorheological fluid brake |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363119A (en) * | 2013-06-24 | 2013-10-23 | 宁波华盛汽车部件有限公司 | Hydraulic retarder sealing device |
| CN105351398A (en) * | 2015-11-24 | 2016-02-24 | 东北大学 | Magnetorheological fluid braking device |
| JP2017040307A (en) * | 2015-08-20 | 2017-02-23 | 株式会社デンソー | Rotation transmission device |
| CN106641082A (en) * | 2017-01-09 | 2017-05-10 | 南京航空航天大学 | Magnetorheological fluid actuator and method for reducing zero field damping torque of magnetorheological fluid actuator |
| CN113954807A (en) * | 2021-09-09 | 2022-01-21 | 柳州职业技术学院 | Radial extrusion type magnetorheological brake device |
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| WO1994001181A1 (en) * | 1992-07-09 | 1994-01-20 | Torgi Ag | Device for carrying out movements |
| US5460585A (en) * | 1994-03-11 | 1995-10-24 | B.G.M. Engineering, Inc. | Muscle training and physical rehabilitation machine using electro-rheological magnetic fluid |
| WO1999022156A1 (en) * | 1997-10-29 | 1999-05-06 | Lord Corporation | Magnetorheological brake with integrated flywheel |
| CN1520496A (en) * | 2001-12-31 | 2004-08-11 | 罗产尼瑞科有限公司 | Brake appts. using magnetic power |
| CN1575383A (en) * | 2001-10-25 | 2005-02-02 | 洛德公司 | Brake with field responsive material |
| CN203257938U (en) * | 2013-01-25 | 2013-10-30 | 中国矿业大学 | Radial extrusion type magnetorheological fluid brake |
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2013
- 2013-01-25 CN CN201310028389.6A patent/CN103089863B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994001181A1 (en) * | 1992-07-09 | 1994-01-20 | Torgi Ag | Device for carrying out movements |
| US5460585A (en) * | 1994-03-11 | 1995-10-24 | B.G.M. Engineering, Inc. | Muscle training and physical rehabilitation machine using electro-rheological magnetic fluid |
| WO1999022156A1 (en) * | 1997-10-29 | 1999-05-06 | Lord Corporation | Magnetorheological brake with integrated flywheel |
| CN1575383A (en) * | 2001-10-25 | 2005-02-02 | 洛德公司 | Brake with field responsive material |
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| CN203257938U (en) * | 2013-01-25 | 2013-10-30 | 中国矿业大学 | Radial extrusion type magnetorheological fluid brake |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363119A (en) * | 2013-06-24 | 2013-10-23 | 宁波华盛汽车部件有限公司 | Hydraulic retarder sealing device |
| CN103363119B (en) * | 2013-06-24 | 2016-03-09 | 宁波华盛汽车部件有限公司 | A kind of hydrodynamic retarder seal arrangement |
| JP2017040307A (en) * | 2015-08-20 | 2017-02-23 | 株式会社デンソー | Rotation transmission device |
| CN105351398A (en) * | 2015-11-24 | 2016-02-24 | 东北大学 | Magnetorheological fluid braking device |
| CN106641082A (en) * | 2017-01-09 | 2017-05-10 | 南京航空航天大学 | Magnetorheological fluid actuator and method for reducing zero field damping torque of magnetorheological fluid actuator |
| CN106641082B (en) * | 2017-01-09 | 2018-07-31 | 南京航空航天大学 | Reduce the method and its actuator of magnetorheological fluid actuator null field damping square |
| CN113954807A (en) * | 2021-09-09 | 2022-01-21 | 柳州职业技术学院 | Radial extrusion type magnetorheological brake device |
| CN113954807B (en) * | 2021-09-09 | 2022-10-04 | 柳州职业技术学院 | Radial extrusion type magnetorheological braking device |
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| CN103089863B (en) | 2015-05-27 |
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Granted publication date: 20150527 Termination date: 20180125 |