CN114909426A - Multi-coil magnetorheological fluid damper - Google Patents
Multi-coil magnetorheological fluid damper Download PDFInfo
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- CN114909426A CN114909426A CN202210518419.0A CN202210518419A CN114909426A CN 114909426 A CN114909426 A CN 114909426A CN 202210518419 A CN202210518419 A CN 202210518419A CN 114909426 A CN114909426 A CN 114909426A
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- 239000012530 fluid Substances 0.000 title claims abstract description 101
- 238000005192 partition Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000005284 excitation Effects 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 20
- 238000010008 shearing Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 description 13
- 238000002955 isolation Methods 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Classifications
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to the technical field of dampers, and discloses a multi-coil magnetorheological fluid damper which comprises a shell and a transmission shaft, wherein a rotary table is arranged in the shell, the rotary table comprises at least two partition plates, an inner coil support is arranged between every two adjacent partition plates, an outer coil support is uniformly arranged between the two partition plates at the outer end of the transmission shaft in the axial direction and the shell, accommodating grooves are formed in the outer coil support and the inner coil support, an excitation coil is arranged in each accommodating groove, and magnetorheological fluid flow passages which are communicated with each other are formed between the outer coil support and the partition plates and between the inner coil support and the partition plates. A plurality of magnetic activity areas are formed by the arrangement of the inner coil support and the outer coil support, the length of a magnetorheological fluid channel is increased, the magnetorheological fluid channels are communicated with each other, the flowing space of the magnetorheological fluid is increased, and the shearing force area of the magnetorheological fluid generated by the action of a magnetic field is increased; the outer coil support and the excitation coil loop on the inner coil support play a mutual reinforcing role, so that the damping torque is increased.
Description
Technical Field
The invention relates to the technical field of dampers, in particular to a multi-coil magnetorheological fluid damper.
Background
With the development of technology, dampers have begun to find many applications in many fields. Dampers are devices that provide resistance to movement and dissipate the energy of the movement. Various dampers (or shock absorbers) have been used for reducing vibration and energy in the industries of aerospace, aviation, war industry, firearms, automobiles and the like.
The damper is a device for providing resistance to movement and reducing movement energy, mainly comprising a liquid damper, a gas damper and an electromagnetic damper, wherein the magnetorheological damper utilizes the characteristic that the magnetorheological fluid changes rheological characteristics under the action of an external magnetic field to change the damping force of the damper and generate a damping effect.
For example, patent publication No. CN105626754A discloses a multi-piece rotary magnetorheological fluid damper based on a serpentine magnetic circuit, which is composed of a rotor part, a stator part, a working medium, an excitation part and a sealing and fixing part. The damper comprises a rotating shaft, an O-shaped sealing ring, a magnetic isolation sealing ring, a current input line, a front sealing cover, a front end cover, a shell, a magnet exciting coil, a rear end cover, a rear sealing cover, a spacing piece, a fixed damping piece, a movable damping piece, a supporting sleeve, a winding cylinder, a screw, magnetorheological fluid, a gasket and a bearing. The rotor part consists of a rotating shaft, a dynamic damping sheet and a supporting sleeve; the stator part consists of a front end cover, a shell, a rear end cover, spacing pieces, a fixed damping piece and a winding drum; the working medium is magnetorheological fluid filled in gaps among the rotor part, the stator part and the magnetism isolating sealing ring; the excitation part is an excitation coil wound in a cavity among the shell, the spacing piece and the winding drum, and a current input line led out through small holes in the front sealing cover and the front end cover; the sealing and fixing part mainly comprises an O-shaped sealing ring, a magnetic isolation sealing ring, a front sealing cover, a rear sealing cover, a screw, a gasket and a bearing.
The magnetorheological fluid damper improves the utilization rate of the magnetorheological fluid by planning the transmission path of the magnetic force line. However, due to the structural design of the existing magnetorheological fluid damper, the magnetic field intensity is insufficient due to the material property, so that the torque performance is insufficient, and the generated damping force is insufficient to meet the current use requirement.
Disclosure of Invention
The purpose of the invention is: the multi-coil magnetorheological fluid damper is provided to solve the problems that the moment performance is insufficient and the use requirement cannot be met due to insufficient magnetic field intensity in the use process of the magnetorheological fluid damper in the prior art.
In order to achieve the above object, the present invention provides a multi-coil magnetorheological fluid damper, which includes a housing and a transmission shaft rotatably assembled in the housing, wherein a rotating disc rotatably assembled with the transmission shaft is further disposed in the housing, the rotating disc includes at least two partition plates arranged at intervals in an axial direction of the transmission shaft, an inner coil support is disposed between two adjacent partition plates, an outer coil support is disposed between the two partition plates at an axial outer end of the transmission shaft and the housing, receiving grooves extending in a circumferential direction of the transmission shaft are disposed on both the outer coil support and the inner coil support, an excitation coil is disposed in the receiving groove, and a magnetorheological fluid flow passage communicated with each other is formed between the outer coil support and the partition plates, and between the inner coil support and the partition plates.
Preferably, the inner coil support is provided with at least two accommodating grooves at intervals in the radial direction, and the outer coil support is provided with at least two accommodating grooves at intervals in the radial direction.
Preferably, the current directions of the excitation coils in the two adjacent accommodating grooves on the inner coil support are opposite, and the current directions of the excitation coils in the two adjacent accommodating grooves on the outer coil support are opposite.
Preferably, a magnetism isolating ring is further arranged between each accommodating groove and the adjacent magnetorheological fluid flow channel.
Preferably, the outer coil support comprises a support body and turning edges arranged on the outer side of the support body, the turning edges of the two outer coil supports are attached to each other relatively, the rotary disc and the inner coil support are arranged in the outer coil support, and the outer shell is fixedly connected with the support body.
Preferably, a gap is formed between the end face of the partition plate and the turning edge, and the magnetorheological fluid flow channel between the outer coil support and the partition plate and the magnetorheological fluid flow channel between the inner coil support and the partition plate are communicated through the gap.
Preferably, a liquid adding hole communicated with the magnetorheological fluid flow channel is formed in the support body, and a sealing screw is arranged on the liquid adding hole.
Preferably, the turntable is of an H-shaped structure, the turntable comprises a T-shaped outer disc and an inner disc fixedly connected with the outer disc, the outer disc is assembled with the transmission shaft in a rotation stopping manner, and the disc surface of the outer disc and the disc surface of the inner disc form the partition plate.
Preferably, the housing includes end caps arranged at intervals in an axial direction of the transmission shaft, the end caps are fixedly connected to the outer coil support, bearings are arranged on the end caps, and the transmission shaft is rotatably assembled on the end caps through the bearings.
Preferably, the housing, the inner coil support, the outer coil support, the turntable, and the transmission shaft are all non-magnetic materials.
Compared with the prior art, the multi-coil magnetorheological fluid damper has the beneficial effects that: magnetorheological fluid channels are formed between the inner coil support and the partition plate and between the outer coil support and the partition plate, a plurality of magnetic activity areas are formed by arranging the inner coil support and the outer coil support, the length of the magnetorheological fluid channels is increased, the magnetorheological fluid channels are communicated with each other, the flowing space of the magnetorheological fluid is increased, and the shearing force area generated by the magnetorheological fluid under the action of a magnetic field is increased; after the excitation coil is electrified, the excitation coil loops on the outer coil support and the inner coil support play a mutual reinforcing role, the magnetic field intensity of a plurality of local areas is enhanced, and therefore the damping torque is increased.
Drawings
FIG. 1 is a schematic structural view of a multiple coil magnetorheological fluid damper of the present invention;
FIG. 2 is a cross-sectional view of the multiple coil magnetorheological fluid damper of FIG. 1;
FIG. 3 is an enlarged partial schematic view of the multiple coil magnetorheological fluid damper of FIG. 2;
FIG. 4 is a magnetic field simulation configuration of the multi-coil magnetorheological fluid damper of the present invention;
FIG. 5 is an axial magnetorheological fluid magnetic field strength plot for a multiple coil magnetorheological fluid damper of the present invention;
FIG. 6 is a radial magnetorheological fluid field strength curve for a multiple coil magnetorheological fluid damper in accordance with the present invention.
In the figure, 1, a housing; 11. an end cap; 12. a bearing; 2. a drive shaft; 3. a turntable; 31. an outer disc; 32. an inner disc; 4. an inner coil support; 5. an outer coil support; 51. a stent body; 52. turning over edges; 53. a liquid adding hole; 6. a field coil; 7. a magnetorheological fluid channel; 8. accommodating grooves; 9. magnetism isolating ring.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 6, the preferred embodiment of the multi-coil magnetorheological fluid damper of the invention comprises a housing 1, a transmission shaft 2, a turntable 3, an inner coil support 4 and an outer coil support 5, wherein the transmission shaft 2 is rotatably assembled in the housing 1, the turntable 3 is rotatably assembled on the transmission shaft 2, the transmission shaft 2 can drive the turntable 3 to rotate when rotating, and the damper applies damping force to the turntable 3 so as to apply damping force to the transmission shaft 2. In the embodiment, the transmission shaft 2 is tightly matched with the rotary table 3 and is fastened and fixed through screws, so that rotation stopping assembly is realized.
The turntable 3 comprises at least two partitions, which are arranged in parallel and spaced apart in the circumferential direction of the drive shaft 2. In the present embodiment, there are two partitions, and the two partitions form three spaces in the axial direction of the propeller shaft 2. An inner coil support 4 is arranged between the two partition plates, outer coil supports 5 are uniformly arranged between the two partition plates and the shell 1, namely the number of the outer coil supports 5 is two, the inner coil support 4 is arranged between the two outer coil supports 5, and the outer coil supports 5 and the inner coil supports 4 are separated by the partition plates.
All be provided with holding tank 8 on outer coil support 5 and the inner coil support 4, holding tank 8 extends along transmission shaft 2's circumference, and holding tank 8 is the ring channel of arranging with transmission shaft 2 is coaxial promptly, and excitation coil 6 arranges in the holding tank 8. The accommodating groove 8 is provided with an end face, close to one side of the outer shell 1, of the outer coil support 5, and the excitation coil 6 is fixed in the accommodating groove 8 through the outer shell 1; the magnet exciting coil 6 on the inner coil support 4 is fixed in the accommodating groove 8 through a partition plate.
In this embodiment, outer coil support 5, the distance between holding tank 8 on the inner coil support 4 and transmission shaft 2 is the same, thereby make outer coil support 5, excitation coil 6 on the inner coil support 4 overlap each other along the axial of transmission shaft 2, after excitation coil 6 on inner coil support 4, the outer coil support 5 circular telegram, excitation coil 6 return circuit on outer coil support 5 and the inner coil support 4 plays the reinforcing effect each other, has strengthened a plurality of local area's magnetic field intensity, thereby has increased damping moment.
A magnetorheological fluid channel 7 is formed between the outer coil support 5 and the partition plate, a magnetorheological fluid channel 7 is formed between the inner coil support 4 and the partition plate, the magnetorheological fluid channel 7 is used for flowing of magnetorheological fluid, and the length of the magnetorheological fluid channel 7 is increased. Meanwhile, after the excitation coil 6 is electrified, the magnetic field intensity direction at the magnetorheological fluid channel 7 is perpendicular to the magnetorheological fluid channel 7, so that the damping force generated by the magnetorheological fluid is increased.
As shown in fig. 5 and 6, the abscissa of the graph indicates the arc length (m), and the ordinate of the graph indicates the magnetic flux density mode (T). The magnetorheological fluid is in a chain shape under the action of a magnetic field, the rotating direction of the transmission shaft 2 is perpendicular to the magnetic flux linkage of the magnetorheological fluid, namely the rotating direction of the rotary disc 3 is perpendicular to the magnetorheological fluid, and the yield stress of the magnetic flux linkage blocks the relative movement of the rotary disc 3 in the axial and radial areas of the transmission shaft 2 so as to generate shearing force.
The magnetorheological fluid channel 7 between the outer coil support 5 and the partition plate is communicated with the magnetorheological fluid channel 7 between the inner coil support 4 and the partition plate, namely the magnetorheological fluid channel 7 in the damper is a closed circulation loop, the flowing space of the magnetorheological fluid is increased, the shearing force area of the magnetorheological fluid generated under the action of a magnetic field is increased, and the damping moment is increased.
Preferably, at least two receiving grooves 8 are radially spaced on the inner coil support 4 and at least two receiving grooves 8 are radially spaced on the outer coil support 5.
In this embodiment, arrange two holding tanks 8 on the inner coil support 4, two holding tanks 8 arrange with one heart, arrange two holding tanks 8 on the outer coil support 5, two holding tanks 8 arrange with one heart. Magnet exciting coil 6 is put to two holding tanks 8 of interior coil bracket 4 equipartition, and magnet exciting coil 6 is put to two holding tanks 8 of outer coil bracket 5 equipartition to increased the quantity and the area of arrangement of coil, formed a plurality of closed magnetic circuit that use the coil as the center, each magnetic circuit has strengthened a plurality of local area's magnetic field intensity, thereby increased the damping force of magnetic current becomes liquid to carousel 3.
Preferably, the current directions of the excitation coils 6 in the two adjacent receiving grooves 8 on the inner coil support 4 are opposite, and the current directions of the excitation coils 6 in the two adjacent receiving grooves 8 on the outer coil support 5 are opposite.
Because the current direction of the excitation coil 6 in two adjacent holding grooves 8 is opposite, the magnetic field intensity direction that the excitation coil 6 produced is opposite, produces the magnetic field of mutual superpose, has increased the magnetic field intensity of flowing through the magnetorheological suspensions, has consequently produced the effect of mutual reinforcement to the shearing force that the magnetorheological suspensions produced has been increased.
In the present embodiment, the current directions of the excitation coils 6 on the inner coil support 4 and the outer coil support 5 which are at the same distance from the transmission shaft 2 are opposite, and the current directions of each excitation coil 6 and the other excitation coils 6 which are closest to the surrounding are all opposite.
Preferably, a magnetism isolating ring 9 is further arranged between each accommodating groove 8 and the adjacent magnetorheological fluid flow channel.
The magnetism isolating ring 9 is a non-magnetic conducting material, when the damper works, one side of the magnetism isolating ring 9 is in contact with the magnet exciting coil 6, the other side of the magnetism isolating ring is in contact with magnetorheological fluid, the magnet exciting coil 6 can be effectively isolated from the magnetorheological fluid, and meanwhile, a magnetic field loop generated by the magnet exciting coil 6 is modified, so that the magnetic loop is more vertical to the direction of the rotary table 3, the magnetic induction intensity of a magnetorheological fluid area is increased, and the magnetorheological fluid generates larger shear stress.
In this embodiment, the magnetism isolating ring 9 is a T-shaped structure, and the magnetism isolating ring 9 is pressed and fixed by the exciting coil 6. The magnetism isolating ring 9 of the outer coil support 5 is arranged on one side, close to the inner coil support 4, of the accommodating groove 8, the magnetism isolating ring 9 of the inner coil support 4 is arranged on two axial sides of the accommodating groove 8, namely the magnetism isolating ring 9 is arranged on two sides of the accommodating groove 8 of the inner coil support 4, and magnetorheological fluid is separated from the coils through the magnetism isolating ring 9. The magnetic isolation ring 9 and the accommodating groove 8 are sealed through an O-shaped ring, so that the magnetorheological fluid is prevented from flowing out to cause accidents.
Preferably, the outer coil support 5 comprises a support body 51 and turned edges 52 arranged on the outer side of the support body 51, the turned edges 52 of the two outer coil supports 5 are attached to each other, the rotary table 3 and the inner coil support 4 are both arranged in the outer coil support 5, and the outer shell 1 is fixedly connected with the support body 51.
The turned edges 52 of the two outer coil brackets 5 are relatively attached, so that a closed space is formed between the two outer coil brackets 5 and is used for accommodating the turntable 3 and the inner coil bracket 4, the arrangement of the shell 1 is simplified, and the damper is convenient to assemble.
Preferably, a gap is formed between the end face of the partition plate and the turned edge 52, and the magnetorheological fluid flow channel between the outer coil support 5 and the partition plate and the magnetorheological fluid flow channel between the inner coil support 4 and the partition plate are communicated through the gap.
The gap extends along the axial direction of the transmission shaft 2, magnetorheological fluid flows in the gap, the magnetorheological fluid in the magnetorheological fluid channel 7 flows in the radial direction, and the magnetorheological fluid in the gap flows in the axial direction. When the magnet exciting coil 6 is electrified, the magnetorheological fluid in the gap generates axial shearing force, and the axial and radial yield stress is applied to the rotating disc 3 by matching with the magnetorheological fluid in the magnetorheological fluid channel 7, so that the rotating disc 3 is prevented from rotating to generate the shearing force, and the damping moment is increased.
Preferably, the bracket body 51 is provided with a liquid adding hole 53 communicated with the magnetorheological fluid flow passage, and a sealing screw is arranged on the liquid adding hole 53.
After the damper is assembled in a sealing mode, magnetorheological fluid needs to be added from the outside, the magnetorheological fluid is injected from the outside through the liquid adding holes 53, the magnetorheological fluid can be filled in the whole magnetorheological fluid channel 7 through the two liquid adding holes 53 to the greatest extent, and the damping force is increased.
In this embodiment, the liquid adding hole 53 is opened at the position close to the transmission shaft 2 of the outer coil support 5 and the inner coil support 4, and after the addition of the magnetorheological fluid is completed, the magnetorheological fluid can be sealed by a sealing screw, so that the leakage of the magnetorheological fluid is prevented.
Preferably, the rotating disc 3 is in an H-shaped structure, the rotating disc 3 comprises a T-shaped outer disc 31 and an inner disc 32 fixedly connected with the outer disc 31, the outer disc 31 is assembled with the transmission shaft 2 in a rotation stopping manner, and a partition plate is formed between the disc surface of the outer disc 31 and the disc surface of the inner disc 32.
The turntable 3 is in an H-shaped structure, and a partition plate is formed by the surfaces of the outer disc 31 and the inner disc 32, so that the structure of the turntable 3 and the partition plate is simplified, and the assembly of the turntable 3 is facilitated.
Preferably, the housing 1 comprises end covers 11 arranged at intervals along the axial direction of the transmission shaft 2, the end covers 11 are fixedly connected with the outer coil support 5, bearings 12 are arranged on the end covers 11, and the transmission shaft 2 is rotatably assembled on the end covers 11 through the bearings 12.
The housing 1 is formed by two end caps 11, simplifying the structure of the housing 1. The end cover 11 is provided with the bearing 12, so that the friction resistance of the rotating shaft during rotation can be reduced, and the transmission efficiency is improved. In other embodiments, the housing 1 may also be a cylinder structure, and the outer coil support 5 is arranged in the housing 1 to increase the sealing performance of the damper.
Preferably, the housing 1, the inner coil support 4, the outer coil support 5, the turntable 3, and the transmission shaft 2 are all non-magnetic materials.
The non-magnetic conductive material can modify the magnetic field direction generated by the exciting coil 6, so that the magnetic field direction flowing through the magnetorheological fluid area is more vertical to the magnetorheological fluid, and the damping force is increased. In this embodiment, the non-magnetic material is an aluminum alloy, and in other embodiments, the non-magnetic material may be other metals or alloys.
In summary, the embodiments of the present invention provide a multi-coil magnetorheological fluid damper, wherein magnetorheological fluid channels are formed between an inner coil support and a partition plate, and between an outer coil support and the partition plate, and a plurality of magnetic active areas are formed by the arrangement of the inner coil support and the outer coil support, so that the length of the magnetorheological fluid channels is increased, the magnetorheological fluid channels are communicated with each other, the flowing space of the magnetorheological fluid is increased, and further, the shearing force area of the magnetorheological fluid generated by the action of a magnetic field is increased; after the excitation coil is electrified, the excitation coil loops on the outer coil support and the inner coil support play a mutual reinforcing role, the magnetic field intensity of a plurality of local areas is enhanced, and therefore the damping torque is increased.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a multicoil magnetorheological suspensions attenuator which characterized in that, is in including shell and rotation assembly transmission shaft in the shell, still arrange in the shell with the carousel of transmission shaft rotation stopping assembly, the carousel includes along at least two baffles of the axial interval arrangement of transmission shaft, adjacent two interior coil brackets have been arranged between the baffle, two of transmission shaft axial outer end the baffle with outer coil bracket has been put to the equipartition between the shell, outer coil bracket with all be provided with on the interior coil bracket along the holding tank of the circumference extension of transmission shaft, excitation coil has been arranged in the holding tank, outer coil bracket with between the baffle, interior coil bracket with form the magnetorheological suspensions runner of mutual intercommunication between the baffle.
2. The multi-coil magnetorheological fluid damper of claim 1, wherein the inner coil support has at least two of the receiving slots radially spaced therefrom and the outer coil support has at least two of the receiving slots radially spaced therefrom.
3. The multi-coil magnetorheological fluid damper of claim 2, wherein the current flow direction of the excitation coils in adjacent ones of the receiving slots on the inner coil support is opposite and the current flow direction of the excitation coils in adjacent ones of the receiving slots on the outer coil support is opposite.
4. The multi-coil magnetorheological fluid damper according to any one of claims 1 to 3, wherein a magnetic isolating ring is further disposed between each accommodating groove and the adjacent magnetorheological fluid flow passage.
5. The multi-coil magnetorheological fluid damper according to any one of claims 1 to 3, wherein the outer coil support comprises a support body and turned edges arranged outside the support body, the turned edges of the two outer coil supports are fitted oppositely, both the turntable and the inner coil support are arranged in the outer coil support, and the outer shell is fixedly connected with the support body.
6. The multi-coil magnetorheological fluid damper according to claim 5, wherein a gap is formed between the end surface of the partition plate and the turned edge, and the magnetorheological fluid flow channel between the outer coil support and the partition plate and the magnetorheological fluid flow channel between the inner coil support and the partition plate are communicated through the gap.
7. The multi-coil magnetorheological fluid damper according to claim 5, wherein the bracket body is provided with a liquid feeding hole communicated with the magnetorheological fluid flow passage, and a sealing screw is arranged on the liquid feeding hole.
8. The multi-coil magnetorheological fluid damper according to any one of claims 1 to 3, wherein the rotating disc is of an H-shaped structure, the rotating disc comprises a T-shaped outer disc and an inner disc fixedly connected with the outer disc, the outer disc is assembled with the transmission shaft in a rotation stopping manner, and the disc surface of the outer disc and the disc surface of the inner disc form the partition plate.
9. The multi-coil magnetorheological fluid damper according to any one of claims 1 to 3, wherein the housing comprises end caps spaced apart in an axial direction of the drive shaft, the end caps being fixedly connected to the outer coil support, the end caps being provided with bearings, the drive shaft being rotatably mounted on the end caps via the bearings.
10. The multi-coil magnetorheological fluid damper of any one of claims 1 to 3, wherein the outer housing, the inner coil support, the outer coil support, the turntable, and the drive shaft are all non-magnetically permeable materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210518419.0A CN114909426B (en) | 2022-05-12 | 2022-05-12 | Multi-coil magnetorheological fluid damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210518419.0A CN114909426B (en) | 2022-05-12 | 2022-05-12 | Multi-coil magnetorheological fluid damper |
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| CN114909426A true CN114909426A (en) | 2022-08-16 |
| CN114909426B CN114909426B (en) | 2023-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117439365A (en) * | 2023-12-22 | 2024-01-23 | 广东海洋大学 | Rotary actuator based on magnetorheological fluid drive and application method |
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| CN117439365A (en) * | 2023-12-22 | 2024-01-23 | 广东海洋大学 | Rotary actuator based on magnetorheological fluid drive and application method |
| CN117439365B (en) * | 2023-12-22 | 2024-03-29 | 广东海洋大学 | Rotary actuator based on magnetorheological fluid drive and application method |
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