CN108194536A - A kind of magneto-rheological - Google Patents
A kind of magneto-rheological Download PDFInfo
- Publication number
- CN108194536A CN108194536A CN201711240911.1A CN201711240911A CN108194536A CN 108194536 A CN108194536 A CN 108194536A CN 201711240911 A CN201711240911 A CN 201711240911A CN 108194536 A CN108194536 A CN 108194536A
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- Prior art keywords
- connecting portion
- portion part
- cylinder body
- magneto
- damper
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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
- 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)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention provides a kind of magneto-rheological, including MR damper, elastomeric element, the first connecting portion part, second connecting portion part and third connecting component.The both ends of MR damper are removably connect respectively with the first connecting portion part and second connecting portion part, for elastomeric element between second connecting portion part and MR damper, third connecting component is removably positioned at one end far from MR damper on second connecting portion part.Elastomeric element is equipped with the pre compressed magnitude that can reset MR damper.The first connecting portion part is connect with tache motorice, and third connecting component is connect with fixing end.It can realize the dual regulation of damping force and rigidity, and fast response time.
Description
Technical field
The present invention relates to antivibration areas, and in particular to a kind of magneto-rheological.
Background technology
Buffer is the mechanical device being widely used under high-strength impact environment, for reducing the overbump of structure, is kept away
Exempt from the resonance problem of structure.Existing hydraulic draft gear belongs to passive control mode, and characteristic fixation can not adjust and response speed
The requirement to the response time under high speed reciprocating impact motion conditions can not slowly be met.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of magneto-rheological, can
Realize the dual regulation of damping force and rigidity, and fast response time.
In order to solve the above-mentioned technical problem, technical solution proposed by the present invention is：
A kind of magneto-rheological, including MR damper, elastomeric element, the first connecting portion part, second connecting portion part,
With third connecting component.The both ends of MR damper are respectively with the first connecting portion part and second connecting portion part with dismountable side
Formula connects, and elastomeric element is between second connecting portion part and MR damper, and third connecting component is removably
It is arranged in one end far from MR damper on second connecting portion part.Elastomeric element, which is equipped with, to reset MR damper
Pre compressed magnitude.The first connecting portion part is connect with tache motorice, and third connecting component is connect with fixing end.
Magneto-rheological according to the present invention, by the first connecting portion part and third connecting component respectively with equipment, dress
After putting connection, by MR damper and the mode of action in parallel of elastomeric element, MR damper can be with quick response control
System signal processed, and damping force is adjusted, adjustable range it is wide, elastomeric element can provide initial buffer rigidity, and
And initial precompressed rigidity can be adjusted in real time, while can realize big precompressed and precompressed is easy to adjust, so that
Buffer can realize the double control of damping force and rigidity, so as to solve characteristic fixation in the prior art can not adjust and
Response speed can not slowly meet the problem of requirement to the response time under high speed reciprocating impact motion conditions.It is also, magnetorheological
The damper structure type in parallel with the elastomeric element of adjustable precompressed, can reduce installation dimension space.
For above-mentioned technical proposal, the further improvement that can be also discussed below.
Magneto-rheological according to the present invention in one preferred embodiment, further includes pressure sensor and adds
Velocity sensor, acceleration transducer are arranged in the first connecting portion part, and pressure sensor is removably positioned at
Between two connecting components and third connecting component.Magneto-rheological according to the present invention can be passed by the acceleration of installation
Sensor carries out the signal testing and feedback of control system with pressure sensor, according to the movement of equipment and mechanical signal, reaches real
When, adaptive control effect.
Specifically, in one preferred embodiment, MR damper include the first cylinder body, the second cylinder body, piston,
Piston rod and end cap.First cylinder body both ends are removably connect respectively with end cap and the second cylinder body, and end cap and first connects
Relay part removably connects, on the first cylinder body far from the first connecting portion part one end with second connecting portion part with removable
The mode unloaded connects, and elastomeric element is located in the second cylinder body.End cap is arranged on the piston rod, and piston is arranged in the first cylinder body,
Piston rod is arranged in the first cylinder body and the second cylinder body, and piston is set in piston rod periphery, piston rod and second connecting portion part with
Dismountable mode connects.Magnetorheological fluid is equipped in first cylinder body, is equipped between piston and the first cylinder body as damp channel
Gap, piston are equipped with electromagnetic coil.First cylinder body, the second cylinder body, end cap and the first connecting portion part can along piston rod to
It is mobile.
Specifically, MR damper is powered by outside, can form magnetic by the electromagnetic coil being arranged on piston
Circuit so as to change the characteristic of magnetorheological fluid between damp channel, therefore can adjust the damping force of MR damper.
Further, in one preferred embodiment, bearing holder (housing, cover) is equipped between piston rod and end cap.Bearing holder (housing, cover) can be with
Play the role of guiding and lubrication piston and piston rod.
Further, in one preferred embodiment, sealing device is equipped between piston rod and end cap.Specifically,
In one preferred embodiment, sealing device includes U-shaped sealing ring.Sealing device can be played in the second cylinder body of sealing
Magnetic rheological liquid prevents the effect of leakage.
In one preferred embodiment, magneto-rheological according to the present invention further includes guider, is oriented to dress
Setting between MR damper and elastomeric element.Specifically, in one preferred embodiment, guider includes set
Cylinder and the locating piece being arranged in sleeve.Guider can play guiding role, and cover to the movement of MR damper
The frame mode that cylinder is combined with locating piece can protect the separation of MR damper and elastic support member, so as to ensure to buffer
The reliability of device work.
Further, in one preferred embodiment, magneto-rheological according to the present invention is further included positioned at
Gasket between two connecting components and elastomeric element.The precompressed of elastic support member is realized by gasket so that resilient support
The uniform force of component so that pre-compaction process stablize it is convenient.
Further, in one preferred embodiment, using fixed between second connecting portion part and MR damper
Position pin connection.It may further ensure that second connecting portion part connects reliably with MR damper in this way.
Compared with prior art, the advantage of the invention is that：It can realize the dual regulation of damping force and rigidity, and ring
Answer speed fast.
Description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 schematically illustrates the whole sectional structure of the magneto-rheological 10 of the embodiment of the present invention.
In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to practical ratio.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, but does not therefore limit this
The protection domain of invention.
Fig. 1 schematically illustrates the whole sectional structure of the magneto-rheological 10 of the embodiment of the present invention.As shown in Figure 1,
The magneto-rheological 10 of the embodiment of the present invention connects including MR damper 1, elastomeric element 2, the first connecting portion part 3, second
Relay part 4 and third connecting component 5.The both ends of MR damper 1 respectively with the first connecting portion part 3 and second connecting portion part 4
It removably connects, elastomeric element 2 is between second connecting portion part 4 and MR damper 1, third connecting component
5 are removably positioned at one end far from MR damper 1 on second connecting portion part 4.Elastomeric element 2 is equipped with can
The pre compressed magnitude for resetting MR damper 1.The first connecting portion part 3 is connect with tache motorice, third connecting component 5 and fixing end
Connection.The magneto-rheological of the embodiment of the present invention, by the first connecting portion part and third connecting component respectively with unit
After connection, by MR damper and the mode of action in parallel of elastomeric element, MR damper can be with fast-response control
System signal, and damping force is adjusted, adjustable range it is wide, elastomeric element can provide initial buffer rigidity, and
Initial precompressed rigidity can be adjusted in real time, while can realize big precompressed and precompressed is easy to adjust, so that is slow
The double control of damping force and rigidity can be realized by rushing device, so as to solve characteristic fixation in the prior art can not adjust and ring
The problem of answering speed that can not slowly meet under high speed reciprocating impact motion conditions the requirement to the response time.Also, magnetic current variable resistance
Buddhist nun's device structure type in parallel with the elastomeric element of adjustable precompressed, can reduce installation dimension space.Specifically, it is excellent at one
In the embodiment of choosing, MR damper 1 includes the first cylinder body 11, the second cylinder body 12, piston 13, piston rod 14, end cap 15.
First cylinder body, 11 both ends are removably connect respectively with 15 and second cylinder body 12 of end cap, end cap 15 and the first connecting portion part
3 removably connect, on the first cylinder body 11 far from the first connecting portion part 3 one end with second connecting portion part 4 with removable
The mode unloaded connects, and elastomeric element 2 is located in the second cylinder body 12.End cap 15 is set on piston rod 14, and piston 13 is arranged in
In one cylinder body 11, piston rod 14 is arranged in the first cylinder body 11 and the second cylinder body 12, and piston 13 is set in 14 periphery of piston rod, living
Stopper rod 14 is removably connect with second connecting portion part 4.It is equipped with magnetorheological fluid 16 in first cylinder body 11, piston 13 and the
The gap as damp channel is equipped between one cylinder body 11, piston 13 is equipped with electromagnetic coil 17.First cylinder body 11, the second cylinder body
12nd, end cap 15 and the first connecting portion part 3 can be moved axially along piston rod 14.MR damper is powered by outside, can be with
Field circuit is formed by the electromagnetic coil that is arranged on piston, so as to change the characteristic of magnetorheological fluid between damp channel, because
This can adjust the damping force of MR damper.
As shown in Figure 1, the magneto-rheological 10 of the embodiment of the present invention, in one preferred embodiment, further includes
Pressure sensor 6 and acceleration transducer 7, acceleration transducer 7 are arranged in the first connecting portion part 3, and pressure sensor 6 is with can
The mode of dismounting is arranged between second connecting portion part 4 and third connecting component 5.Further, the magnetic current of the embodiment of the present invention
Become buffer, the signal testing and feedback of control system can be carried out with pressure sensor by the acceleration transducer of installation,
According to the movement of equipment and mechanical signal, reach real-time, adaptive control effect.Preferably, pressure sensor 6 uses screw thread
The mounting means of preload, by adjusting the pretightning force of bolt so as to adjust the initial precompression of pressure sensor 6.
Further, as shown in Figure 1, in one preferred embodiment, axis is equipped between piston rod 14 and end cap 15
Bearing sleeve 18.Bearing holder (housing, cover) can play the role of guiding and lubrication piston and piston rod.Further, in a preferred embodiment party
In formula, sealing device 19 is equipped between piston rod 14 and end cap 15.Specifically, in one preferred embodiment, sealing dress
It puts 19 and includes U-shaped sealing ring.Sealing device can play the role of sealing the magnetic rheological liquid in the second cylinder body, prevent leakage.
As shown in Figure 1, in one preferred embodiment, the magneto-rheological 10 of the embodiment of the present invention further includes
Guider 8, guider 8 is between MR damper 1 and elastomeric element 2.Specifically, in a preferred embodiment party
In formula, guider 8 includes sleeve 81 and the locating piece 82 being arranged in sleeve 81.Guider can be to MR damper
Movement play guiding role, and the frame mode that sleeve is combined with locating piece can protect MR damper to be propped up with elasticity
The separation of support part part, so as to ensure the reliability of buffer work.Further, in one preferred embodiment, this hair
The magneto-rheological 10 of bright embodiment further includes the gasket 9 between second connecting portion part 4 and elastomeric element 2.Pass through pad
Piece realizes the precompressed of elastic support member so that the uniform force of elastic support member, so that pre-compaction process is stablized just
It is prompt.Further, in one preferred embodiment, positioning pin is used between second connecting portion part 4 and MR damper 1
101 connections.It may further ensure that second connecting portion part 4 and MR damper 1 connect reliably in this way.
Specifically, elastomeric element 2 is configured to steel bomb spring structure, can be used for realizing the stiffness tuning of buffer, and provides
The elastic force that can reset MR damper 1.
The course of work of the magneto-rheological 10 of the embodiment of the present invention is as follows：
Blind nut 31 in the first connecting portion part 3 of magneto-rheological 10 is connect with the tache motorice of device, is passed through
Nut 32 fastens, and the adapter 51 in third connecting component 5 is connect with the fixing end of device, nut 32 and positioning pin
101 can adjust the installation condition of magneto-rheological 10.It, can be with by adjusting the screw-down torque of 31 and first cylinder body 11 of blind nut
Control the pretightning force of end cap 15.Acceleration transducer 7 is used to measure the acceleration of tache motorice, and pressure sensor 6 is solid for measuring
The stress of fixed end, signal input and feedback of two signals as control system.Initially installation is in precompressed to elastomeric element 2
State adjusts the pre compressed magnitude of elastomeric element 2 by gasket 9, being threadedly coupled for the first cylinder body 11 and the second cylinder body 12.
During the tache motorice setting in motion of device, for 31 and first cylinder body of blind nut toward end motion is fixed, the second cylinder body is past
During fixed end motion, elastic force is generated by 8 elasticity of compression component 2 of guider on one side, one side opposing pistons 13 move
Damping force is generated, the connector 41 and piston rod 14 in piston 14, second connecting portion part 4 are fixedly connected and consolidate with fixing end
Fixed motionless, the extreme displacement that piston 13 moves to contact end cap 15 moves to the pole contacted with connector 41 more than the second cylinder body 12
Limiting moves, and so as to ensure in 10 course of work of magneto-rheological, piston 13 will not collide with end cap 15 and contact.At this point,
MR damper 1 is parallel connection with elastomeric element 2, and the power that pressure sensor 6 measures is the resultant force of elastic force and damping force, i.e.,
Cushion effect.
When magneto-rheological 10 resets, reset force is provided by elastomeric element 2, under the action of elastomeric element 2, is pushed
8 and first cylinder body 11 of guider, the second cylinder body 12 reset, until magneto-rheological 10 returns to initial position, during reset
For piston 13 relative to the first cylinder body 11 toward fixed end motion, MR damper 1, which generates, inhibits what magneto-rheological 10 resetted
Damping force, at this point, the difference for the damping force that cushion effect is generated for the elastic force that elastomeric element 2 generates with MR damper 1.
According to above-described embodiment, it is seen then that magneto-rheological of the present invention can realize pair of damping force and rigidity
Reset section, and fast response time.
Although by reference to preferred embodiment, invention has been described, in the situation for not departing from the scope of the present invention
Under, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, it to be rushed as long as there is no structures
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts
Disclosed in specific embodiment, but all technical solutions including falling within the scope of the appended claims.
Claims (10)
1. a kind of magneto-rheological, which is characterized in that including MR damper, elastomeric element, the first connecting portion part, second
Connecting component and third connecting component；
The both ends of the MR damper are respectively with the first connecting portion part and the second connecting portion part with dismountable
Mode connects, and the elastomeric element is between the second connecting portion part and the MR damper, the third connection
Component is removably positioned at one end far from the MR damper on the second connecting portion part；
The elastomeric element is equipped with the pre compressed magnitude that can reset the MR damper；
The first connecting portion part is connect with tache motorice, and the third connecting component is connect with fixing end.
2. magneto-rheological according to claim 1, which is characterized in that the magneto-rheological further includes pressure biography
Sensor and acceleration transducer, the acceleration transducer are arranged in the first connecting portion part, the pressure sensor with
Dismountable mode is arranged between the second connecting portion part and the third connecting component.
3. magneto-rheological according to claim 1 or 2, which is characterized in that the MR damper includes first
Cylinder body, the second cylinder body, piston, piston rod and end cap；
The first cylinder body both ends are removably connect respectively with the end cap and second cylinder body, the end cap with
The first connecting portion part removably connects, on first cylinder body far from the first connecting portion part one end with
The second connecting portion part removably connects, and the elastomeric element is located in second cylinder body；
The end cap is set on the piston rod, and the piston is arranged in first cylinder body, and the piston rod is arranged in
In first cylinder body and second cylinder body, the piston is set in the piston rod periphery, the piston rod and described the
Two connecting components removably connect；
Magnetorheological fluid is equipped in first cylinder body, is equipped with and is used as between damp channel between the piston and first cylinder body
Gap；The piston is equipped with electromagnetic coil；
First cylinder body, second cylinder body, the end cap and the first connecting portion part can along the piston rod to
It is mobile.
4. magneto-rheological according to claim 3, which is characterized in that be equipped between the piston rod and the end cap
Bearing holder (housing, cover).
5. magneto-rheological according to claim 3 or 4, which is characterized in that between the piston rod and the end cap
Equipped with sealing device.
6. magneto-rheological according to claim 5, which is characterized in that the sealing device includes U-shaped sealing ring.
7. magneto-rheological according to any one of claim 1 to 6, which is characterized in that further include guider, institute
Guider is stated between the MR damper and the elastomeric element.
8. magneto-rheological according to claim 7, which is characterized in that the guider includes sleeve and is arranged in
Locating piece in sleeve.
9. magneto-rheological according to any one of claim 1 to 8, which is characterized in that the magneto-rheological
Further include the gasket between the second connecting portion part and the elastomeric element.
10. magneto-rheological according to any one of claim 1 to 9, which is characterized in that the second connecting portion part
Using positioning pin connection between the MR damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240911.1A CN108194536B (en) | 2017-11-30 | 2017-11-30 | Magneto-rheological buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711240911.1A CN108194536B (en) | 2017-11-30 | 2017-11-30 | Magneto-rheological buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108194536A true CN108194536A (en) | 2018-06-22 |
| CN108194536B CN108194536B (en) | 2020-01-14 |
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ID=62573273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711240911.1A Active CN108194536B (en) | 2017-11-30 | 2017-11-30 | Magneto-rheological buffer |
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| Country | Link |
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| CN (1) | CN108194536B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196353A (en) * | 2020-02-07 | 2020-05-26 | 任年栋 | Undercarriage magneto-rheological buffer control device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930463A (en) * | 1989-04-18 | 1990-06-05 | Hare Sr Nicholas S | Electro-rheological valve control mechanism |
| US6390253B1 (en) * | 1999-10-05 | 2002-05-21 | Delphi Technologies, Inc. | Magneto-rheological damping apparatus |
| CN104315073A (en) * | 2014-08-25 | 2015-01-28 | 合肥工业大学 | Variable-stiffness variable-damping shock absorber based on magnetorheological damper |
| CN204553664U (en) * | 2015-03-10 | 2015-08-12 | 中国科学技术大学 | A kind of buffer using magnetorheological clay |
| CN206617495U (en) * | 2017-04-10 | 2017-11-07 | 华东交通大学 | The Novel magneto-rheological damper of damping force can directly be detected |
-
2017
- 2017-11-30 CN CN201711240911.1A patent/CN108194536B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930463A (en) * | 1989-04-18 | 1990-06-05 | Hare Sr Nicholas S | Electro-rheological valve control mechanism |
| US6390253B1 (en) * | 1999-10-05 | 2002-05-21 | Delphi Technologies, Inc. | Magneto-rheological damping apparatus |
| CN104315073A (en) * | 2014-08-25 | 2015-01-28 | 合肥工业大学 | Variable-stiffness variable-damping shock absorber based on magnetorheological damper |
| CN204553664U (en) * | 2015-03-10 | 2015-08-12 | 中国科学技术大学 | A kind of buffer using magnetorheological clay |
| CN206617495U (en) * | 2017-04-10 | 2017-11-07 | 华东交通大学 | The Novel magneto-rheological damper of damping force can directly be detected |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111196353A (en) * | 2020-02-07 | 2020-05-26 | 任年栋 | Undercarriage magneto-rheological buffer control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108194536B (en) | 2020-01-14 |
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