CN103453053B - A kind of magnetic rheological brake - Google Patents
A kind of magnetic rheological brake Download PDFInfo
- Publication number
- CN103453053B CN103453053B CN201310393903.6A CN201310393903A CN103453053B CN 103453053 B CN103453053 B CN 103453053B CN 201310393903 A CN201310393903 A CN 201310393903A CN 103453053 B CN103453053 B CN 103453053B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- shell
- magnetic conductive
- conductive shell
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000003068 static effect Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 12
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 9
- 239000002245 particle Substances 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of magnetic rheological brake, belong to mechanical braking technical field.Comprise brake axle (1), left magnetic conductive shell (5), interior every magnetic shell (6), right magnetic conductive shell, outer every magnetic shell (10) and middle magnetic conductive shell (11); Outside magnetic guiding loop (14) is installed in magnetic shell circular groove, installs every magnetic cup (15) in right magnetic conductive shell; Right magnetic conductive shell II and interiorly insert slip magnetic conductive axis (21) and permanent magnet (22) in magnetic shell; In closed cavity (17), extension spring group (16) is installed.The present invention can realize magnetic rheological brake and adopt field coil for magnetic brake in normal conditions, provides controlled braking force; Field coil break down or power-off time, by the effect of extension spring group and Seal cage pressure oil, field coil is switched to permanent magnet for magnetic brake pattern fast for magnetic brake pattern, ensure the continuity of magnetic rheological brake braking force, improve Safety performance and the reliability of magnetic rheological brake.
Description
Technical field
The present invention relates to a kind of magnetic rheological brake, belong to mechanical braking technical field.
Background technique
Magnetic flow liquid is a kind of particle suspension liquid, primarily of soft magnetic particles, base load liquid and the additive composition being wrapped in particle surface.Owing to there is soft magnetic particles in magnetic flow liquid, it is to magnetic-field-sensitive, it is a kind of Intelligent magnetic functional material, to be there is obvious rheological effect in magnetic flow liquid under magnetic fields, soft magnetic particles wherein will be chain structure arrangement along magnetic direction, form numerous particle chains, and particle chain will hinder the free-flow of base load liquid, make magnetic flow liquid show as semisolid in macroscopical, and present certain shear yield stress.Due to the magneto-rheological characteristic of its uniqueness, since magnetic flow liquid comes out, obtain in various fields such as automobile, machinery, Aero-Space, building, medical treatment and apply more and more widely, develop multiple magnetorheological product, having comprised: clutch, break, damper, burnishing device, hydrovalve, seal arrangement, composite component etc.
Magnetic rheological brake is as the application branch of magnetic flow liquid, have that braking response is fast, brake member wearing and tearing compared with little, braking moment large, it is simple to control, it is little to vibrate, control the features such as energy consumption is low, be a kind of ideal braking device, the problems such as the control of conventional brake is complicated, bulky, expensive, braking moment is not enough, weak heat-dissipating can be avoided.There is more magnetic rheological brake application example and patent documentation at present, the Chinese invention patent being CN101225859A as publication number discloses " a kind of magnetic rheological brake " on 07 23rd, 2008, this break adopts permanent magnet as magnetic source, sustainable generation magnetic field, but its braking force is non-adjustable; Publication number is that the Chinese invention patent of CN102146968A discloses " a kind of multiple-disc type magnetorheological brake " on 08 10th, 2011, and this break field coil is easily dismantled, but cannot realize power-off brake function.Therefore there is a deficiency in visible existing magnetic rheological brake, namely all adopt field coil or permanent magnet independent for magnetic mode, wherein permanent magnet is for abampere good perfection, but braking force is unadjustable; And field coil easily produces braking force disruption because power-off or coil break down for magnetic-capacity, safety reliability is poor.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of magnetic rheological brake, realize magnetic rheological brake and adopt field coil for magnetic brake in normal conditions, controlled braking force is provided; And field coil break down or power-off time, switch to the object that permanent magnet is braked for magnetic mode fast, ensure that braking force is not interrupted, improve the safety reliability of magnetic rheological brake.
To achieve these goals, this magnetic rheological brake comprises brake axle, left magnetic conductive shell, right magnetic conductive shell and middle magnetic conductive shell, brake axle is arranged on break axle center by bearing, middle magnetic conductive shell is bolted between left magnetic conductive shell and right magnetic conductive shell, left magnetic conductive shell is fixedly connected with every magnetic shell with the outer of internal spline respectively by bolt with right magnetic conductive shell, at middle magnetic conductive shell, left magnetic conductive shell, in the space that magnetic shell and right magnetic conductive shell are formed, installs field coil outward; Be connected with brake axle by bolt every magnetic shell with in external splines, movable friction plate group is nested with by spline in the interior outside every magnetic shell, static friction sheet group is nested with by spline outside, between movable friction plate group and static friction sheet group by little magnetism resistent ring interval separately every the inside of magnetic shell;
Circular groove is had outward every the right side of magnetic shell, right magnetic conductive shell is made up of right magnetic conductive shell I and right magnetic conductive shell II two-part, form annular through groove between the inner cylindrical surface of right magnetic conductive shell I and the external cylindrical surface of right magnetic conductive shell II, this annular through groove is corresponding with the outer circular groove position every magnetic shell right side and size; Movable installation magnetic guiding loop in the circular groove of magnetic shell end face outside, in the annular through groove of right magnetic conductive shell, movable installation is every magnetic cup, and magnetic guiding loop is fixedly connected with every magnetic cup; The center of right magnetic conductive shell II and interiorly movablely in the circular hole that the center of magnetic shell is offered insert the slip magnetic conductive axis and permanent magnet that are fixed together, be bolted every magnetic cup and slip magnetic conductive axis and be integrated, every magnetic cup with the extension spring group axially identical with brake axle is installed in the closed cavity that right magnetic conductive shell II is formed, on magnetic cup, offering the pressure oil import be communicated with closed cavity.
Permanent magnet is cylindrical and inserts the axial centre place in break.
All be adhesively fixed by mighty bond at magnetic guiding loop with between magnetic cup and between slip magnetic conductive axis and permanent magnet.
Compared with prior art, this magnetic rheological brake is provided with generation source, two kinds of magnetic field: field coil and permanent magnet, all can produce magnetic field between friction plate, achieve magnetic rheological brake and adopt field coil for magnetic brake pattern in normal conditions, controlled braking force is provided; And when field coil break down or power-off time, by the effect of extension spring group and Seal cage pressure oil, field coil is switched to permanent magnet for magnetic brake pattern fast for magnetic brake pattern, ensure that the continuity of magnetic rheological brake braking force, improve Safety performance and the reliability of magnetic rheological brake.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present invention.
In figure: 1, brake axle, 2, end cap, 3, bearing, 4, end ring, 5, left magnetic conductive shell, 6, interior every magnetic shell, 7, movable friction plate group, 8, static friction sheet group, 9, little magnetism resistent ring, 10, outer every magnetic shell, 11, middle magnetic conductive shell, 12, field coil, 13, right magnetic conductive shell I, 14, magnetic guiding loop, 15, every magnetic cup, 16, extension spring group, 17, closed cavity, 18, pressure oil import, 19, right magnetic conductive shell II, 20, seal ring, 21, slip magnetic conductive axis, 22, permanent magnet.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, this magnetic rheological brake comprises brake axle 1, left magnetic conductive shell 5, right magnetic conductive shell and middle magnetic conductive shell 11, brake axle 1 is arranged on break axle center by bearing 3, two bearings 3 by end ring 4 separately, and it is fixing to carry out installation by end cap 2, middle magnetic conductive shell 11 is bolted between left magnetic conductive shell 5 and right magnetic conductive shell, left magnetic conductive shell 5 is fixedly connected with every magnetic shell 10 with the outer of internal spline respectively by bolt with right magnetic conductive shell, at middle magnetic conductive shell 11, left magnetic conductive shell 5, in the space that magnetic shell 10 and right magnetic conductive shell are formed, field coil 12 is installed outward, be connected with brake axle 1 by bolt every magnetic shell 6 with in external splines, movable friction plate group 7 is nested with by spline in the interior outside every magnetic shell 6, static friction sheet group 8 is nested with by spline outside every the inside of magnetic shell 10, between movable friction plate group 7 and static friction sheet group 8 by little magnetism resistent ring 9 interval separately, magnetic flow liquid is full of between friction plate, in field coil 12, pass into certain electric current, controlling magnetic field can be produced between friction plate group,
Circular groove is had outward every the right side of magnetic shell 10, right magnetic conductive shell is made up of right magnetic conductive shell I 13 and right magnetic conductive shell II19 two-part, form annular through groove between the inner cylindrical surface of right magnetic conductive shell I13 and the external cylindrical surface of right magnetic conductive shell II19, this annular through groove is corresponding with the outer circular groove position every magnetic shell 10 right side and size, movable installation magnetic guiding loop 14 in the circular groove of magnetic shell 10 end face outside, in the annular through groove of right magnetic conductive shell, movable installation is every magnetic cup 15, and magnetic guiding loop 14 is fixedly connected with every magnetic cup 15, the center of right magnetic conductive shell II19 and interiorly movablely in the circular hole that the center of magnetic shell 6 is offered insert the slip magnetic conductive axis 21 and permanent magnet 22 that are fixed together, be bolted every magnetic cup 15 and slip magnetic conductive axis 21 and be integrated, every magnetic cup 15 with the extension spring group 16 axially identical with brake axle 1 is installed in the closed cavity 17 that right magnetic conductive shell II19 is formed, the pressure oil import 18 be communicated with closed cavity 17 is being offered on magnetic cup 15, pressure oil can be sealed by seal ring 20 by closed cavity 17, to prevent the seepage of pressure oil, guarantee that break of the present invention can run well, reduce maintenance cost, extend working life.
As preferably of the present invention, permanent magnet 22 is cylindrical and inserts the axial centre place in break, can ensure that magnetic intensity that permanent magnet 22 produces is maximum and be uniformly distributed.
As preferably of the present invention, be all adhesively fixed by mighty bond at magnetic guiding loop 14 with between magnetic cup 15 and between slip magnetic conductive axis 21 and permanent magnet 22, while saving processing cost, reducing difficulty of processing, ensure that the intensity be fixedly connected with.
As fully visible, there are two kinds of magnetic circuits in this magnetic rheological brake: field coil magnetic circuit and permanent magnet magnetic circuit.The magnetic circuit of field coil is: kinematics and static friction sheet group 7,8 → right magnetic conductive shell II19 → magnetic guiding loop 14 → right magnetic conductive shell I13 → middle magnetic conductive shell 11 → left magnetic conductive shell 5 → kinematics and static friction sheet group 7,8; The magnetic circuit of permanent magnet is: kinematics and static friction sheet group 7,8 → right magnetic conductive shell II19 → slip magnetic conductive axis 21 → permanent magnet 22 → brake axle 1 → end ring 4 → left magnetic conductive shell 5 → kinematics and static friction sheet group 7,8.
Above-mentioned two kinds of magnetic circuits can not work simultaneously, and its concrete working procedure is as follows:
Middle magnetic conductive shell 11 in this magnetic rheological brake is fixedly connected with brake mount, therefore middle magnetic conductive shell 11, left magnetic conductive shell 5, right magnetic conductive shell I13, be all fixed together transfixion every magnetic shell 10 and right magnetic conductive shell II19 outward, static friction sheet group 8 also keeps transfixion by spline with outer to be connected every magnetic shell 10; In magnetic rheological brake normal operation, one end and the extraneous equipment connection needing to brake of brake axle 1, the other end and to be interiorly bolted to connection every magnetic shell 6, due to the interior effect connected every magnetic shell 6 upper spline, movable friction plate group 7 will with brake axle 1 synchronous rotary.
In the equipment deboost phase, when field coil 12 fault-free, by pressure oil import 18 to injection pressure oil in closed cavity 17, because middle magnetic conductive shell 11, left magnetic conductive shell 5, right magnetic conductive shell I13, all transfixion is fixed together outward every magnetic shell 10 and right magnetic conductive shell II19, so pressure oil will overcome the pulling force of extension spring group 16, make the magnetic guiding loop 14 being fixedly connected on one, every magnetic cup 15, slip magnetic conductive axis 21 and permanent magnet 22 slide to the right, magnetic guiding loop 14 makes the magnetic circuit of field coil 12 connect, and the air gap on the left of permanent magnet 22 becomes large, the magnetic resistance of permanent magnet magnetic circuit increases, permanent magnet 22 cannot produce operating fields in the working clearance of friction plate group, therefore permanent magnet magnetic circuit is now in interrupt status.Certain electric current is passed in field coil 12, magnetic field will be produced between movable friction plate group 7 and static friction sheet group 8, under the effect in this magnetic field, to theomorphism be there is in the magnetic flow liquid in the working clearance of friction plate group, namely magnetic flow liquid will become semisolid, produce braking torque, stop the rotation of friction plate group, namely achieved the controlled braking of external device by said process.
When field coil 12 break down or power-off time, the oil pressure of pressure oil import 18 will reduce, namely the oil pressure in closed cavity 17 reduces, now be fixedly connected on the magnetic guiding loop 14 of one, every magnetic cup 15, slip magnetic conductive axis 21 and permanent magnet 22 under the pulling force effect of extension spring group 16 by slippage left, air gap on the left of permanent magnet 22 reduces, permanent magnet magnetic circuit is connected, in order to prevent the magnetic field of permanent magnet 22 by field coil magnetic circuit, every magnetic cup 15 in slippage left time will cut off the magnetic circuit of field coil 12, achieve the object of excitation to the excitation rapid translating of permanent magnet 22 of field coil 12, the phenomenon that braking is interrupted is there is when field coil 12 can be prevented in power-off with this or break down, ensure that the continuity of magnetic rheological brake braking force, improve Safety performance and the reliability of magnetic rheological brake.
Claims (3)
1. a magnetic rheological brake, comprise brake axle (1), left magnetic conductive shell (5), right magnetic conductive shell and middle magnetic conductive shell (11), brake axle (1) is arranged on break axle center by bearing (3), middle magnetic conductive shell (11) is bolted between left magnetic conductive shell (5) and right magnetic conductive shell, left magnetic conductive shell (5) is fixedly connected with every magnetic shell (10) with the outer of internal spline respectively by bolt with right magnetic conductive shell, in middle magnetic conductive shell (11), left magnetic conductive shell (5), in the space that magnetic shell (10) and right magnetic conductive shell are formed, field coil (12) is installed outward, be connected with brake axle (1) by bolt every magnetic shell (6) with in external splines, movable friction plate group (7) is nested with by spline in the interior outside every magnetic shell (6), static friction sheet group (8) is nested with by spline outside, between movable friction plate group (7) and static friction sheet group (8) by little magnetism resistent ring (9) interval separately every the inside of magnetic shell (10),
It is characterized in that, circular groove is had every the right side of magnetic shell (10) outside described, described right magnetic conductive shell is by right magnetic conductive shell I (13) and right magnetic conductive shell II(19) two-part form, right magnetic conductive shell I(13) inner cylindrical surface and right magnetic conductive shell II(19) external cylindrical surface between form annular through groove, this annular through groove with outward every the circular groove position of magnetic shell (10) right side and size corresponding; Movable installation magnetic guiding loop (14) in the circular groove of magnetic shell (10) end face outside, in the annular through groove of right magnetic conductive shell, movable installation is every magnetic cup (15), and magnetic guiding loop (14) is fixedly connected with every magnetic cup (15); Right magnetic conductive shell II(19) center and interior in the circular hole that the center of magnetic shell (6) is offered activity insert the slip magnetic conductive axis (21) and permanent magnet (22) that are fixed together, be bolted every magnetic cup (15) and slip magnetic conductive axis (21) and be integrated, every magnetic cup (15) and right magnetic conductive shell II(19) the extension spring group (16) axially identical with brake axle (1) is installed in the closed cavity (17) that formed, on magnetic cup (15), offering the pressure oil import (18) be communicated with closed cavity (17).
2. a kind of magnetic rheological brake according to claim 1, is characterized in that, permanent magnet (22) is axial centre place that is cylindrical and that insert in break.
3. a kind of magnetic rheological brake according to claim 1, is characterized in that, is all adhesively fixed by mighty bond at magnetic guiding loop (14) with between magnetic cup (15) and between slip magnetic conductive axis (21) and permanent magnet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393903.6A CN103453053B (en) | 2013-09-02 | 2013-09-02 | A kind of magnetic rheological brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393903.6A CN103453053B (en) | 2013-09-02 | 2013-09-02 | A kind of magnetic rheological brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103453053A CN103453053A (en) | 2013-12-18 |
| CN103453053B true CN103453053B (en) | 2016-04-20 |
Family
ID=49735762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393903.6A Expired - Fee Related CN103453053B (en) | 2013-09-02 | 2013-09-02 | A kind of magnetic rheological brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103453053B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747688B (en) * | 2015-03-03 | 2017-11-28 | 中国矿业大学 | A kind of magnetorheological transmission device frictional disk |
| CN105952833B (en) * | 2016-04-28 | 2018-01-23 | 北京化工大学 | A kind of sealing damping device of eccentric automatic adjusument |
| CN106395672B (en) * | 2016-12-15 | 2018-10-30 | 福州大学 | The brake device for elevator and method with automatic protection functions based on magnetic rheology effect |
| CN108582151A (en) * | 2018-06-12 | 2018-09-28 | 浙江工业大学 | A kind of mixed liquor excitation controller in the submissive joint of robot |
| CN108582150A (en) * | 2018-06-12 | 2018-09-28 | 浙江工业大学 | A kind of submissive joint of composite excitation formula robot based on magnetorheological fluid |
| CN112138867B (en) * | 2020-09-14 | 2023-05-23 | 山东祎禾新材料有限公司 | High-precision magnetic separator with automatic speed regulation function |
| CN114382804B (en) * | 2022-01-25 | 2023-05-23 | 江苏省特种设备安全监督检验研究院 | Double-shaft independent controllable single-disc brake based on double-coil excitation |
| CN117605776B (en) * | 2024-01-23 | 2024-04-05 | 华东交通大学 | Stator built-in magneto-rheological brake |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1070871A2 (en) * | 1999-07-19 | 2001-01-24 | Meritor Heavy Vehicle Systems, LLC | Reduced drag wet disk brake |
| CN101225859A (en) * | 2007-12-30 | 2008-07-23 | 江苏技术师范学院 | Magneto-rheologic liquid brake |
| CN202674106U (en) * | 2012-03-06 | 2013-01-16 | 浙江师范大学 | Extrusion magnetorheological brake |
| CN102927166A (en) * | 2012-11-16 | 2013-02-13 | 陈吉朋 | Clutch type magnetorheological fluid brake |
-
2013
- 2013-09-02 CN CN201310393903.6A patent/CN103453053B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1070871A2 (en) * | 1999-07-19 | 2001-01-24 | Meritor Heavy Vehicle Systems, LLC | Reduced drag wet disk brake |
| CN101225859A (en) * | 2007-12-30 | 2008-07-23 | 江苏技术师范学院 | Magneto-rheologic liquid brake |
| CN202674106U (en) * | 2012-03-06 | 2013-01-16 | 浙江师范大学 | Extrusion magnetorheological brake |
| CN102927166A (en) * | 2012-11-16 | 2013-02-13 | 陈吉朋 | Clutch type magnetorheological fluid brake |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103453053A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103453053B (en) | A kind of magnetic rheological brake | |
| CN108006233B (en) | Sleeve type magnetic fluid sealing device with trapezoidal pole shoes | |
| CN106969090B (en) | The magnetorheological half active torsional vibration damper integrated with active adjusted based on electromagnetism | |
| CN108458006B (en) | Disk type magneto-rheological brake excited by annular permanent magnet and exciting coil | |
| CN203098636U (en) | Magneto-rheological clutch | |
| CN102252095B (en) | Seal method of magnetorheological fluid for elevator magnetorheological fluid brake and seal device | |
| CN202510584U (en) | Cylindrical magnetorheological fluid coupling | |
| CN103807329B (en) | A kind of electric vortex buffering apparatus based on magnetic rheology effect | |
| CN101225859A (en) | Magneto-rheologic liquid brake | |
| CN103161846B (en) | Laminated type high-power magneto-rheological fluid clutch | |
| CN102927166B (en) | Clutch type magnetorheological fluid brake | |
| CN103935721A (en) | Magnetorheological fluid variable damping carrier roller | |
| CN106499747B (en) | The magnetorheological shaft coupling of close-coupled Cycloidal Wheel | |
| CN203702930U (en) | Efficient eddy current retarder | |
| CN203836032U (en) | High-efficient magneto-rheological braking device | |
| CN106763296A (en) | Magnetic powder cluth | |
| CN109210104A (en) | A kind of coil arragement construction increasing magnetic rheological clutch dynamic controlled range | |
| CN106884898B (en) | A kind of squash type torque magnetic rheological clutch | |
| CN201866135U (en) | Braking device based on magnetorheological fluid | |
| CN203730607U (en) | Gap-fine-adjustment type magneto-rheological clutch | |
| CN208764185U (en) | A kind of revolving type magnetic rheologic brake with more fluid courses | |
| CN103758891A (en) | Gap fine adjustment type magnetorheological clutch | |
| CN107218320B (en) | Electric current becomes retarder brake | |
| CN102606643A (en) | Reluctance vortex type electromagnetic clutch | |
| EP2630384B1 (en) | Variable speed magnetic coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20170902 |