CN108458006A - The Novel disc-type magnetic rheological brake encouraged using annular permanent magnet and magnet exciting coil - Google Patents
The Novel disc-type magnetic rheological brake encouraged using annular permanent magnet and magnet exciting coil Download PDFInfo
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- CN108458006A CN108458006A CN201810303329.3A CN201810303329A CN108458006A CN 108458006 A CN108458006 A CN 108458006A CN 201810303329 A CN201810303329 A CN 201810303329A CN 108458006 A CN108458006 A CN 108458006A
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- hand rotation
- permanent magnet
- ring support
- annular permanent
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- 238000013016 damping Methods 0.000 claims abstract description 57
- 239000012530 fluid Substances 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims description 10
- 238000000518 rheometry Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of Novel disc-type magnetic rheological brakes encouraged using annular permanent magnet and magnet exciting coil, are mainly made of shaft, cylinder barrel, magnetic conductive disk, turntable, inner sleeve, ring support, end cap, annular permanent magnet and magnet exciting coil etc..An annular permanent magnet is added in the ring support groove of brake, and fixed magnetic field is provided to the magnetorheological fluid of four sections of radial disk damping gap locations；Magnet exciting coil is wound on annular permanent magnet simultaneously, and variable magnetic field is provided to the magnetorheological fluid of four sections of radial disk damping gap locations；Magnet exciting coil is used cooperatively with annular permanent magnet, can form three kinds of working methods.In magnet exciting coil dead electricity, annular permanent magnet can still provide brake certain damping torque, improve the automatic anti-fault performance of brake.In addition, magnet exciting coil is axially disposed among two turntables, the radial dimension of brake is effectively reduced.The present invention is especially suitable for multi-states to brake occasion.
Description
Technical field
It a kind of is encouraged the present invention relates to a kind of magnetic rheological brake more particularly to using annular permanent magnet and magnet exciting coil
Novel disc-type magnetic rheological brake.
Background technology
The working media filled in traditional liquid braking device is normal hydraulic oil, is had simple in structure and without external energy
The advantages that amount input；But since hydraulic oil viscosity is small, causes output damping force smaller, do not adapt to the operating mode of various change.
The appearance of magnetorheological fluid is to solve above-mentioned problem to bring new thinking, and magnetorheological fluid has wink under magnetic fields
When reversible rheological behavior, the shear yield strength of magnetorheological fluid can be changed by controlling magnetic field intensity, realize magnetorheological system
The step-less adjustment of dynamic device torque.Magnetic rheological brake can be divided into linear magnetic rheological brake and rotary according to motion mode
Magnetic rheological brake.Relative to revolving type magnetic rheologic brake, although linear magnetic rheological brake has one using relatively extensively
A little obvious disadvantages, such as need larger installation space；Big impulse stroke cannot be accommodated, because brake bar has deformation
The danger of bending；The exposure on bar surface makes bar be become larger by the probability that exterior object injures, while can be by brake cylinder body
The friction of sealing element.
Conventional rotary magnetic rheological brake generates magnetic field only with magnet exciting coil, when brake a period of time out of service
Afterwards, the magnetorheological fluid magnetic-particle in brake will produce sedimentation or aggregation and form lump and cake shape object；When brake again
When operation, the lump and cake shape object can block damp channel to make brake lose damping capacity.In addition, if system power supply
It breaks down when to make the exciting current of magnetic rheological brake be zero, brake output torque is small and can not adjust, fail-safe
Security performance is relatively low.Meanwhile conventional rotary magnetic rheological brake disposes the mode of magnet exciting coil to make brake in outer cylinder
Radial dimension is excessive, is unfavorable for using in the narrow occasion of working space.
Invention content
In order to solve the problems, such as that background technology, the present invention provide a kind of sharp using annular permanent magnet and magnet exciting coil
The Novel disc-type magnetic rheological brake encouraged.Magnet exciting coil and annular permanent magnet are used cooperatively, added in ring support groove
One annular permanent magnet provides fixed magnetic field to the magnetorheological fluid at damping clearance；Revolving type magnetic rheologic braking in the present invention
The torque that device generates can effectively reduce the rotating speed of shaft, realize and slow down or reduce vibration equivalent fruit.DC servo motor drives
Shaft generates rotating speed of different sizes, when the spindle is rotated, drives turntable rotation；Annular permanent magnet and magnet exciting coil collective effect
Magnetic field is generated, when annular permanent magnet generates magnetic direction and magnet exciting coil generation magnetic direction is identical when being powered, magnetorheological fluid
Magnetic rheology effect is generated in radial disk damping gap, to generate larger torque, rotary shaft rotation is hindered, realizes reliable system
Dynamic control；When annular permanent magnet generates magnetic direction and magnet exciting coil generation magnetic direction is opposite when being powered, encouraged by control
Magnetic coil electrical current size is, it can be achieved that shaft is freely rotated；When magnet exciting coil is not powered on, still there is annular permanent magnet generation
Magnetic field, to improve the automatic anti-fault performance of brake.
The technical solution adopted by the present invention to solve the technical problems includes：Left end cap (1), left magnetic conductive disk (2), left-hand rotation disk
(3), inner sleeve (4), cylinder barrel (5), right-hand rotation disk (6), right magnetic conductive disk (7), right bearing (8), right end cap (9), ring support (10),
Annular permanent magnet (11), magnet exciting coil (12), ring support end cap (13), left bearing (14) and shaft (15)；Left end cap (1)
Centre is machined with circular through hole, and right side is machined with toroidal cavity；Between left end cap (1) circular through hole inner surface and shaft (15)
Gap coordinates；Left end cap (1) is fastenedly connected with cylinder barrel (5) by screw；Left magnetic conductive disk (2) circumferential outer surface and cylinder barrel (5) circumference
Inner surface is interference fitted；It is machined with stairstepping circular through hole, left magnetic conductive disk (2) circular through hole inner surface among left magnetic conductive disk (2)
Left end is interference fitted with left bearing (14) outer ring；Left magnetic conductive disk (2) circular through hole inner surface right end and left-hand rotation disk (3) flange appearance
Face clearance fit, and sealed by sealing ring；Left magnetic conductive disk (2) left side is right by left end cap (1) right side axially position
End face passes through cylinder barrel (5) shaft shoulder left side axially position；It is machined with circular through hole among left-hand rotation disk (3), table in circular through hole
Face and shaft (15) are interference fitted, and are carried out by flat key circumferentially positioned；Left-hand rotation disk (3) left end passes through left bearing (14) right side
Axially position, right end pass through right-hand rotation disk (6) left side axially position；In inner sleeve (4) circumferential outer surface and cylinder barrel (5) circumference
Surface is interference fitted；Inner sleeve (4) left end passes through ring support end cap (13) right side axially position；Inner sleeve (4) right end is logical
Cross the convex end face axial positioning of facing left of ring support (10)；It is machined with circular through hole, circular through hole inner surface among right-hand rotation disk (6)
It is interference fitted with shaft (15), and circumferentially positioned by flat key；Right-hand rotation disk (6) left end is axially fixed by left-hand rotation disk (3) right side
Position；Right-hand rotation disk (6) right end passes through right bearing (8) left side axially position；Right magnetic conductive disk (7) circumferential outer surface and cylinder barrel (5) circle
All inner surfaces interference fit, is machined with stairstepping circular through hole among right magnetic conductive disk (7), table in right magnetic conductive disk (7) circular through hole
Face right end is interference fitted with right bearing (8) outer ring；Right magnetic conductive disk (7) circular through hole inner surface left end and right-hand rotation disk (6) right flange
Outer surface clearance fit, and sealed by sealing ring；Right magnetic conductive disk (7) left end passes through cylinder barrel (5) shaft shoulder right side axially position；
Right magnetic conductive disk (7) right end passes through right end cap (9) left side axially position；Annular permanent magnet (11) through-hole inner surface and ring support
(10) outer surface is interference fitted；Annular permanent magnet (11) left end is right by ring support end cap (13) right side axially position
End passes through the convex end face axial positioning of facing left of ring support (10)；The convex disk outer surface of ring support (10) and table in cylinder barrel (5) circumference
Face is interference fitted；The convex disk right side of ring support (10) is machined with kidney-shaped boss；Ring support (10) left end passes through ring support
End cap (13) right side axially position, right end pass through right-hand rotation disk (6) left side axially position；Ring support end cap (13) appearance
Face is interference fitted with cylinder barrel (5) circumferential inner surface；Ring support end cap (13) left side is machined with kidney-shaped boss；Ring support end
Lid (13) left end passes through left-hand rotation disk (3) right side axially position；Its right end passes through inner sleeve (4), ring support (10) and annular
Permanent magnet (11) left side axially position；Right bearing (8) left end by right-hand rotation disk (6) right end and right magnetic conductive disk (7) right axle shoulder into
Row axially position, right end carry out axially position by right end cap (9) left side；Right bearing (8) inner ring and shaft (15) interference
Cooperation；Left bearing (14) left end carries out axially position by left end cap (1) right side, right end by left-hand rotation disk (3) left end and
Left magnetic conductive disk (2) left axle shoulder carries out axially position；Left bearing (14) inner ring is interference fitted with shaft (15)；Ring support (10),
Annular permanent magnet (11) and ring support end cap (13) surround toroidal cavity, and magnet exciting coil (12) is wrapped in toroidal cavity
Interior, lead is drawn from inner sleeve (4) with cylinder barrel (5) circular through hole；Gap between left magnetic conductive disk (2) and left-hand rotation disk (3)
Form radial disk damping gap I (16)；Gap between left-hand rotation disk (3) and ring support end cap (13) forms radial disk resistance
Buddhist nun gap II (18)；Gap between right-hand rotation disk (6) and ring support (10) forms radial disk damping gap III (20)；It turns right
Gap between disk (6) and right magnetic conductive disk (7) forms radial disk damping gap IV (22)；Between left-hand rotation disk (3) and cylinder barrel (5)
Gap form axial annulus damping clearance I (17)；Between right-hand rotation disk (6) flange section and ring support (10) through-hole inner surface
Gap form axial annulus damping clearance II (19)；Gap between right-hand rotation disk (6) and cylinder barrel (5) forms axial annulus damping
Gap III (21)；Radial disk damping gap I (16), axial annulus damping clearance I (17), radial disk damping gap II
(18), axial annulus damping clearance II (19), radial disk damping gap III (20), axial annulus damping clearance III (21) and diameter
The fluid course of disk brake is collectively constituted to disk damping gap IV (22) series connection；Filled with magnetorheological in fluid course
Liquid；Annular permanent magnet (11) generates magnetic field with magnet exciting coil (12) collective effect, when annular permanent magnet (11) generates magnetic direction
With when magnet exciting coil (12) generation magnetic direction is identical when being powered, under common magnetic fields, magnetorheological fluid is in four sections of radial circles
Magnetic rheology effect is generated in disk damping clearance, generates larger torque, hinders shaft (15) to rotate, to realize control for brake；When
When annular permanent magnet (11) generates magnetic direction and magnet exciting coil (12) generation magnetic direction is opposite when being powered, passes through and control excitation
Coil (12) electrical current size is, it can be achieved that shaft (15) are freely rotated；When magnet exciting coil (12) is not powered on, still there is annular
Permanent magnet (11) generates magnetic field, to improve the automatic anti-fault performance of brake.It is left magnetic conductive disk (2), left-hand rotation disk (3), interior
Sleeve (4), right-hand rotation disk (6), right magnetic conductive disk (7), ring support (10) and ring support end cap (13) are by mild steel magnetic conduction material
Material is made；Left end cap (1), cylinder barrel (5), right bearing (8), right end cap (9), left bearing (14) and shaft (15) by stainless steel not
Permeability magnetic material is made.
Compared with the background technology, the present invention, it has an advantageous effect in that：
(1) annular permanent magnet of the present invention and magnet exciting coil collective effect generate magnetic field, when annular permanent magnet generate magnetic direction with
When magnet exciting coil generation magnetic direction is identical when energization, magnetic rheology effect occurs for the magnetorheological fluid in radial disk damping gap,
Larger torque is generated, shaft rotation is hindered, to realize control for brake；It is encouraged with when being powered when annular permanent magnet generates magnetic direction
When magnetic coil generation magnetic direction is opposite, by controlling magnet exciting coil electrical current size, it can be achieved that shaft is freely rotated；When
When magnet exciting coil is not powered on, still there is annular permanent magnet to generate magnetic field；Annular permanent magnet and magnet exciting coil are used cooperatively by the present invention,
Three kinds of effective operating modes can be achieved, further improve torque-volume ratio of brake, increase the adjusting of damping torque
Range has widened the use scope of brake.
(2) magnet exciting coil and annular permanent magnet are axially disposed among two turntables by the present invention, effectively reduce braking
The radial dimension of device.
(3) present invention can be such that the magnetorheological fluid in working chamber is under magnetic fields always using annular permanent magnet, solve
Magnetorheological fluid standing sedimentation is easy tod produce when conventional magnetic rheological brake dead electricity, the problem of to block damp channel.In addition,
It is avoided using annular permanent magnet when it is zero that the system failure, which leads to field coil current, damping torque is small and what can not be adjusted asks
Topic, increases stability and the safety of system.
(4) compared with linear magnetic rheological brake, the present invention is small, light-weight, at low cost, and it is empty to save installation
Between.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is magnetic line of force distribution schematic diagram when magnet exciting coil of the present invention is identical as annular permanent magnet generation magnetic direction.
Fig. 3 is magnetic line of force distribution schematic diagram when magnet exciting coil of the present invention is opposite with annular permanent magnet generation magnetic direction.
Fig. 4 is magnetic line of force distribution schematic diagram when annular permanent magnet of the present invention generates magnetic field.
Fig. 5 is fluid course damping clearance structural schematic diagram of the present invention.
Fig. 6 is ring support end cover structure schematic diagram of the present invention.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is schematic structural view of the invention, including left end cap (1), left magnetic conductive disk (2), left-hand rotation disk (3), inner sleeve (4), cylinder barrel
(5), right-hand rotation disk (6), right magnetic conductive disk (7), right bearing (8), right end cap (9), ring support (10), annular permanent magnet (11), encourage
Magnetic coil (12), ring support end cap (13), left bearing (14) and shaft (15).
Fig. 2 is magnetic line of force distribution schematic diagram when magnet exciting coil of the present invention is identical as annular permanent magnet generation magnetic direction,
The magnetic line of force that magnet exciting coil (12) generates sequentially passes through left magnetic conductive disk (2), left-hand rotation disk (3), ring support end cap (13), inner sleeve
(4), ring support (10), right-hand rotation disk (6), right magnetic conductive disk (7) are then passed through right-hand rotation disk (6), ring support (10), annular branch
Frame end lid (13) and left-hand rotation disk (3) finally form closed circuit at left magnetic conductive disk (2).The magnetic that annular permanent magnet (11) generates
The line of force sequentially passes through ring support end cap (13), left-hand rotation disk (3), left magnetic conductive disk (2), is then passed through left-hand rotation disk from the poles N
(3), ring support end cap (13), inner sleeve (4), ring support (10), right-hand rotation disk (6), right magnetic conductive disk (7), are then back to the right side
Turntable (6) and ring support (10) eventually pass back to ring support end cap (13) and form closed circuit.Magnet exciting coil (12) and annular
When permanent magnet (11) magnetic field generation direction is identical, the magnetic field intensity in radial disk damping gap is further enhanced, is improved
Brake performance.
Fig. 3 is magnetic line of force distribution schematic diagram when magnet exciting coil of the present invention is opposite with annular permanent magnet generation magnetic direction,
The magnetic line of force that magnet exciting coil (12) generates sequentially passes through left magnetic conductive disk (2), left-hand rotation disk (3), ring support end cap (13), annular branch
Frame (10), right-hand rotation disk (6), right magnetic conductive disk (7) are then passed through right-hand rotation disk (6), ring support (10), ring support end cap (13)
With left-hand rotation disk (3), finally closed circuit is formed in left magnetic conductive disk (2).The magnetic line of force that annular permanent magnet (11) generates goes out from the poles N
Hair, sequentially passes through ring support end cap (13), left-hand rotation disk (3), left magnetic conductive disk (2), is then passed through left-hand rotation disk (3), ring support
End cap (13), inner sleeve (4), ring support (10), right-hand rotation disk (6), right magnetic conductive disk (7), are then back to right-hand rotation disk (6) and annular
Holder (10) eventually passes back to ring support end cap (13) and forms closed circuit.Magnet exciting coil (12) is produced with annular permanent magnet (11)
When magnetisation field direction is opposite, the two generate magnetic line of force direction on the contrary, by control magnet exciting coil (12) electrical current size,
The magnetic field that magnet exciting coil (12) is generated with annular permanent magnet (11) can cancel out each other, and finally realize freely turning for shaft (15)
It is dynamic.
Fig. 4 is magnetic line of force distribution schematic diagram when annular permanent magnet of the present invention generates magnetic field, and annular permanent magnet (11) generates
The magnetic line of force from the poles N, sequentially pass through ring support end cap (13), left-hand rotation disk (3), left magnetic conductive disk (2), be then passed through left-hand rotation
Disk (3), ring support end cap (13), inner sleeve (4), ring support (10), right-hand rotation disk (6), right magnetic conductive disk (7), are then back to
Right-hand rotation disk (6) and ring support (10) eventually pass back to ring support end cap (13) and form closed circuit.When magnet exciting coil (12) no
When conduction, only annular permanent magnet (11) generate magnetic field, the brake force for generating a certain size can be remained in brake no power
Square improves the automatic anti-fault performance of brake.
Fig. 5 is fluid course damping clearance structural schematic diagram of the present invention.Between between left magnetic conductive disk (2) and left-hand rotation disk (3)
Gap forms radial disk damping gap I (16)；Gap between left-hand rotation disk (3) and ring support end cap (13) forms radial disk
Damping clearance II (18)；Gap between right-hand rotation disk (6) and ring support (10) forms radial disk damping gap III (20)；It is right
Gap between turntable (6) and right magnetic conductive disk (7) forms radial disk damping gap IV (22)；Left-hand rotation disk (3) and cylinder barrel (5) it
Between gap form axial annulus damping clearance I (17)；Right-hand rotation disk (6) flange section and ring support (10) through-hole inner surface it
Between gap form axial annulus damping clearance II (19)；Gap between right-hand rotation disk (6) and cylinder barrel (5) forms axial annulus resistance
Buddhist nun gap III (21)；Radial disk damping gap I (16), axial annulus damping clearance I (17), radial disk damping gap II
(18), axial annulus damping clearance II (19), radial disk damping gap III (20), axial annulus damping clearance III (21) and diameter
The fluid course of disk brake is collectively constituted to disk damping gap IV (22) series connection；Filled with magnetorheological in fluid course
Liquid.
Fig. 6 is ring support end cover structure schematic diagram of the present invention, and circular through hole is machined among ring support end cap (13),
For the processing of its left end there are three axial equally distributed kidney-shaped boss, boss thickness is the width of radial disk damping gap II (18)
Degree.
Working principle of the invention is as follows：
DC servo motor drives shaft (15) to generate rotating speed of different sizes, while shaft (15) drives left-hand rotation disk (3) and the right side
Turntable (6) rotates.Magnet exciting coil (12), which is powered, generates magnetic field, when annular permanent magnet (11) generates magnetic direction and excitation when being powered
When coil (12) generation magnetic direction is identical, magnet exciting coil (12) current strength size is adjusted, magnetic field intensity gradually increases；In magnetic
Under field action, magnetorheological fluid generates magnetic rheology effect in four sections of radial disk damping gaps, and magnetorheological fluid apparent viscosity becomes larger,
Larger torque is generated, to realize control for brake；When annular permanent magnet (11) generates magnetic direction and magnet exciting coil when being powered
(12) when generation magnetic direction is opposite, by controlling magnet exciting coil (12) electrical current size, it is solid to offset annular permanent magnet (11)
There is magnetic field influence, being freely rotated for shaft (15) may be implemented；When magnet exciting coil (12) is not powered on, still there is annular permanent magnet
(11) magnetic field is generated, the preventing failure energy of brake is can further improve.
Claims (4)
1. a kind of Novel disc-type magnetic rheological brake encouraged using annular permanent magnet and magnet exciting coil, it is characterised in that including：
Left end cap (1), left magnetic conductive disk (2), left-hand rotation disk (3), inner sleeve (4), cylinder barrel (5), right-hand rotation disk (6), right magnetic conductive disk (7), right axle
Hold (8), right end cap (9), ring support (10), annular permanent magnet (11), magnet exciting coil (12), ring support end cap (13), a left side
Bearing (14) and shaft (15)；It is machined with circular through hole among left end cap (1), right side is machined with toroidal cavity；Left end
Cover (1) circular through hole inner surface and shaft (15) clearance fit；Left end cap (1) is fastenedly connected with cylinder barrel (5) by screw；It leads on a left side
Disk (2) circumferential outer surface is interference fitted with cylinder barrel (5) circumferential inner surface；Stairstepping circle is machined among left magnetic conductive disk (2)
Through-hole, left magnetic conductive disk (2) circular through hole inner surface left end are interference fitted with left bearing (14) outer ring；Left magnetic conductive disk (2) is round logical
Internal surface of hole right end and left-hand rotation disk (3) flange outer face clearance fit, and sealed by sealing ring；Left magnetic conductive disk (2) left side
By left end cap (1) right side axially position, right side passes through cylinder barrel (5) shaft shoulder left side axially position；In left-hand rotation disk (3)
Between be machined with circular through hole, circular through hole inner surface is interference fitted with shaft (15), and is carried out by flat key circumferentially positioned；It is left
Turntable (3) left end passes through right-hand rotation disk (6) left side axially position by left bearing (14) right side axially position, right end；It is interior
Sleeve (4) circumferential outer surface is interference fitted with cylinder barrel (5) circumferential inner surface；Inner sleeve (4) left end passes through ring support end cap
(13) right side axially position；Inner sleeve (4) right end passes through the convex end face axial positioning of facing left of ring support (10)；Right-hand rotation disk (6)
Centre is machined with circular through hole, and circular through hole inner surface is interference fitted with shaft (15), and circumferentially positioned by flat key；It turns right
Disk (6) left end passes through left-hand rotation disk (3) right side axially position；Right-hand rotation disk (6) right end is axially fixed by right bearing (8) left side
Position；Right magnetic conductive disk (7) circumferential outer surface is interference fitted with cylinder barrel (5) circumferential inner surface, and ladder is machined among right magnetic conductive disk (7)
Shape circular through hole, right magnetic conductive disk (7) circular through hole inner surface right end are interference fitted with right bearing (8) outer ring；Right magnetic conductive disk (7) circle
Shape through-hole inner surface left end and the right flange outer face clearance fit of right-hand rotation disk (6), and sealed by sealing ring；Right magnetic conductive disk (7)
Left end passes through cylinder barrel (5) shaft shoulder right side axially position；Right magnetic conductive disk (7) right end passes through right end cap (9) left side axially position；
Annular permanent magnet (11) through-hole inner surface is interference fitted with ring support (10) outer surface；Annular permanent magnet (11) left end passes through ring
Shape holder end cap (13) right side axially position, right end are positioned by the convex end face axial of facing left of ring support (10)；Annular branch
The convex disk outer surface of frame (10) is interference fitted with cylinder barrel (5) circumferential inner surface；The convex disk right side of ring support (10) is machined with kidney-shaped
Boss；Ring support (10) left end passes through right-hand rotation disk (6) left side by ring support end cap (13) right side axially position, right end
End face axial positions；Ring support end cap (13) outer surface is interference fitted with cylinder barrel (5) circumferential inner surface；Ring support end cap
(13) left side is machined with kidney-shaped boss；Ring support end cap (13) left end passes through left-hand rotation disk (3) right side axially position；It is right
End passes through inner sleeve (4), ring support (10) and annular permanent magnet (11) left side axially position；Right bearing (8) left end passes through
Right-hand rotation disk (6) right end and right magnetic conductive disk (7) right axle shoulder carry out axially position, and right end carries out axis by right end cap (9) left side
To positioning；Right bearing (8) inner ring is interference fitted with shaft (15)；Left bearing (14) left end is carried out by left end cap (1) right side
Axially position, right end carry out axially position by left-hand rotation disk (3) left end and left magnetic conductive disk (2) left axle shoulder；In left bearing (14)
Circle is interference fitted with shaft (15)；Ring support (10), annular permanent magnet (11) and ring support end cap (13) surround annulus
Connected in star, magnet exciting coil (12) are wrapped in toroidal cavity, and lead draws from inner sleeve (4) with cylinder barrel (5) circular through hole
Go out.
2. a kind of magnetorheological braking of Novel disc-type encouraged using annular permanent magnet and magnet exciting coil according to claim 1
Device, it is characterised in that：Gap between left magnetic conductive disk (2) and left-hand rotation disk (3) forms radial disk damping gap I (16)；Turn left
Gap between disk (3) and ring support end cap (13) forms radial disk damping gap II (18)；Right-hand rotation disk (6) is propped up with annular
Gap between frame (10) forms radial disk damping gap III (20)；Gap shape between right-hand rotation disk (6) and right magnetic conductive disk (7)
Radially disk damping gap IV (22)；Gap between left-hand rotation disk (3) and cylinder barrel (5) forms axial annulus damping clearance I
(17)；Gap between right-hand rotation disk (6) flange section and ring support (10) through-hole inner surface forms axial annulus damping clearance
Ⅱ(19)；Gap between right-hand rotation disk (6) and cylinder barrel (5) forms axial annulus damping clearance III (21)；Between radial disk damping
Gap I (16), axial annulus damping clearance I (17), radial disk damping gap II (18), axial annulus damping clearance II (19),
Radial disk damping gap III (20), axial annulus damping clearance III (21) and radial disk damping gap IV (22) are connected common
Form the fluid course of disk brake；Magnetorheological fluid is filled in fluid course.
3. a kind of magnetorheological braking of Novel disc-type encouraged using annular permanent magnet and magnet exciting coil according to claim 1
Device, it is characterised in that：Annular permanent magnet (11) generates magnetic field with magnet exciting coil (12) collective effect, when annular permanent magnet (11) are produced
Magnetisation field direction is with when magnet exciting coil (12) generation magnetic direction is identical when being powered, and under common magnetic fields, magnetorheological fluid exists
Magnetic rheology effect is generated in four sections of radial disk damping gaps, larger torque is generated, shaft (15) is hindered to rotate, to realize system
Dynamic control；When annular permanent magnet (11) generates magnetic direction and magnet exciting coil (12) generation magnetic direction is opposite when being powered, lead to
Control magnet exciting coil (12) electrical current size is crossed, it can be achieved that shaft (15) are freely rotated；When magnet exciting coil (12) is not powered on
When, still there is annular permanent magnet (11) to generate magnetic field, to improve the automatic anti-fault performance of brake.
4. a kind of magnetorheological braking of Novel disc-type encouraged using annular permanent magnet and magnet exciting coil according to claim 1
Device, it is characterised in that：Left magnetic conductive disk (2), left-hand rotation disk (3), inner sleeve (4), right-hand rotation disk (6), right magnetic conductive disk (7), ring support
(10) and ring support end cap (13) is made of mild steel permeability magnetic material；Left end cap (1), cylinder barrel (5), right bearing (8), right end
Lid (9), left bearing (14) and shaft (15) are made of stainless steel un-conducted magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108930731A (en) * | 2018-10-08 | 2018-12-04 | 合肥工业大学 | Zero viscous loss, big controlled range magnetic rheological brake |
| CN109027056A (en) * | 2018-10-08 | 2018-12-18 | 合肥工业大学 | A kind of arc disc type, big controlled range magnetic rheological brake |
| CN111379800A (en) * | 2018-12-28 | 2020-07-07 | 物流及供应链多元技术研发中心有限公司 | Torque transmitting device |
| CN112319233A (en) * | 2020-10-13 | 2021-02-05 | 江苏大学 | Eddy current-magnetorheological fluid composite brake and brake control method thereof |
| CN114382804A (en) * | 2022-01-25 | 2022-04-22 | 江苏省特种设备安全监督检验研究院 | Double-shaft independently controllable single-disc brake based on double-coil excitation |
| CN114909426A (en) * | 2022-05-12 | 2022-08-16 | 中山大学 | Multi-coil magnetorheological fluid damper |
| CN117605776A (en) * | 2024-01-23 | 2024-02-27 | 华东交通大学 | Stator built-in magneto-rheological brake |
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| 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 |
| CN114909426A (en) * | 2022-05-12 | 2022-08-16 | 中山大学 | Multi-coil magnetorheological fluid damper |
| CN117605776A (en) * | 2024-01-23 | 2024-02-27 | 华东交通大学 | Stator built-in magneto-rheological brake |
| CN117605776B (en) * | 2024-01-23 | 2024-04-05 | 华东交通大学 | Stator built-in magneto-rheological brake |
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