CN208619581U - A kind of vehicle suspension MR damper of integrated piezoelectric formula sensor - Google Patents
A kind of vehicle suspension MR damper of integrated piezoelectric formula sensor Download PDFInfo
- Publication number
- CN208619581U CN208619581U CN201821166817.6U CN201821166817U CN208619581U CN 208619581 U CN208619581 U CN 208619581U CN 201821166817 U CN201821166817 U CN 201821166817U CN 208619581 U CN208619581 U CN 208619581U
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- Prior art keywords
- end cap
- piston
- damper
- machined
- circumferential
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- 239000000725 suspension Substances 0.000 title claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 13
- 238000007906 compression Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of vehicle suspension MR dampers of integrated piezoelectric formula sensor, are mainly made of piston rod, attenuator end cap, damper cylinder body, piston head end cap, coil winding frame, magnet exciting coil, piston sleeve and valve body etc..Radial clearance between piston head sleeve and damper cylinder body forms the first fluid course；The equally distributed through-hole in piston sleeve end face 4 forms the second fluid course.In compression process, internal liquid pressure makes spring-compressed, opens valve port baffle, and magnetorheological fluid passes through the second fluid course；In springback process, valve port baffle, which is pressurized, is closed, and magnetorheological fluid cannot pass through the second fluid course.In addition, the piezoelectric transducer being mounted in right lifting lug can effectively detect the external force that vehicle suspension is generated in vibration processes, required output damping force can be obtained by controlling field coil current size, to improve vehicle ride comfort.The utility model is highly suitable for vehicle suspension system.
Description
Technical field
The utility model relates to a kind of MR damper more particularly to a kind of vehicle suspensions of integrated piezoelectric formula sensor
Use MR damper.
Background technique
Automobile in the process of moving, can generate it is a series of jolt and vibrate, reduce riding comfort.In order to overcome vibration
It is dynamic, riding comfort is improved, damper can be all set on a vehicle suspension.To obtain preferable effectiveness in vibration suppression, damper is returned
It plays speed and is generally slower than compression speed, is i.e. compression damping is less than rebound damping.
MR damper has Millisecond response speed, big control range as a kind of novel semi- active control element
The features such as with big output damping force, it is made to be widely used in the vibration insulating system of building and bridge.Traditional MR damper
By controlling the electric current being passed through to magnet exciting coil, to control the size of output damping force.It is limited by structure, tradition is magnetorheological
Damper compression damping and rebound damping are equal in magnitude.Therefore, if be used in automotive suspension, multiply for improving automobile
Sit the ineffective of comfort.
By the effect of external force in vehicle traveling process, conventional damper can not measure external force size, therefore be passed through excitation
The electric current of coil is unable to get suitable control, to be unable to get suitable output damping force.
Summary of the invention
In order to solve the problems, such as background technique, the utility model proposes a kind of vehicles of integrated piezoelectric formula sensor
Suspension MR damper.Radial clearance between piston sleeve and damper cylinder body forms the first fluid course；Piston bush
Cylinder end face processes equally distributed 4 through-holes and forms the second fluid course.For piston in compression process, internal liquid pressure makes bullet
Spring compression, so that valve port baffle be made to open, magnetorheological fluid passes through the second fluid course；In springback process, valve port baffle, which is pressurized, to be closed
It closes, magnetorheological fluid cannot pass through the second fluid course.In addition, the piezoelectric transducer being mounted in right hanging ring can be detected effectively
Required output damping force can be obtained by controlling field coil current size in the external force that vehicle suspension is generated in vibration processes.
By above two mode, vehicle ride comfort can be greatly improved.
It includes: left hanging ring (1), piston rod (2), damping that the utility model, which solves technical solution used by its technical problem,
Device left end cap (3), damper cylinder body (4), piston head end cap (5), coil winding frame (6), magnet exciting coil (7), piston sleeve
(8), taper bolt (9), floating piston (10), damper right end cap (11), right hanging ring (12), piezoelectric transducer (13), valve port
Baffle (14), spring (15) and adjustment gasket (16)；Left hanging ring (1) is threadably secured with piston rod (2) to be connect；Damper
Circular through hole, table in piston rod (2) circumferential outer surface and damper left end cap (3) circular through hole are machined among left end cap (3)
Face clearance fit, and be sealed by a seal ring；Damper left end cap (3) and damper cylinder body (4) connect by the way that screw is fixed
It connects, and is sealed by a seal ring；Piston head end cap (5) circumferential inner surface and piston rod (2) circumferential outer surface transition fit；
The intermediate position of piston rod (2) is machined with shoulder, and piston head end cap (5) left end carries out axially position by shoulder；Adjust gasket
(16) circumferential inner surface and piston head end cap (5) right end circumferential outer surface transition fit；It adjusts gasket (16) left end and abuts piston
Head end cover (5) right end large end face；Adjustment gasket (16) right end is connect with spring (15) left end；Spring (15) circumferential inner surface and work
Chock plug end cap (5) circumferential outer surface clearance fit；Spring (15) right end is connect with valve port baffle (14)；Valve port baffle (14) circumference
Inner surface and piston head end cap (5) circumferential outer surface clearance fit；Valve port baffle (14) right end passes through piston sleeve (8) left end
Face carries out axially position；Coil winding frame (6) circumferential inner surface and piston rod (2) circumferential outer surface are interference fitted；Coil-winding
Frame (6) circumferential outer surface is machined with toroidal cavity；Magnet exciting coil (7) is wrapped in coil winding frame (6) toroidal cavity；
Coil winding frame (6), piston head end cap (5), piston rod (2) and left hanging ring (1) are machined with fairlead, magnet exciting coil (7)
Lead passes sequentially through above-mentioned lead and draws；Piston sleeve (8) end face is machined with 4 equally distributed circular through holes, a diameter of
1mm；4 circular through holes form the second fluid course that magnetorheological fluid flows through；The intermediate position of piston sleeve (8) is machined with round logical
Hole；Piston sleeve (8) circular through hole inner surface and coil winding frame (6) external peripheral surface are interference fitted；Piston sleeve (8) is outside
It is logical that annular gap between circumferential surface and damper cylinder body (4) inner circumferential surface constitutes the first liquid stream that magnetorheological fluid flows through
Road, radial gap width 1mm；Piston sleeve (8), coil winding frame (6) and piston rod (2) are solid by taper bolt (9)
Fixed connection；Floating piston (10) circumferential outer surface and damper cylinder body (4) circumferential inner surface clearance fit, and by sealing ring into
Row sealing；Damper right end cap (11) is fixedly connected with damper cylinder body (4) by screw, and is sealed by a seal ring；
Damper right end cap (11) right end is machined with external screw thread, and right hanging ring (12) left end is machined with internal thread hole, and the two is tight by screw thread
It is solidly connected；Right hanging ring (12) is machined with through-hole, and piezoelectric transducer (13) cylindrical outer surface and through-hole inner surface are interference fitted.
The utility model compared with the background art, has the beneficial effect that
(1) radial clearance between the utility model piston head sleeve and damper cylinder body forms the first fluid course；It is living
Head sleeve 4 equally distributed circular through holes form the second fluid course.In compression process, internal liquid pressure makes spring
Compression, opens valve port baffle, and magnetorheological fluid passes through the second fluid course；In springback process, valve port baffle, which is pressurized, is closed, magnetorheological
Liquid cannot pass through the second fluid course.
(2) piezoelectric transducer being mounted in right hanging ring can effectively detect vehicle suspension generated in vibration processes it is outer
Power can obtain required output damping force by controlling field coil current size, to further increase riding comfort.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model piston head structural schematic diagram.
Fig. 3 is the utility model piston sleeve right view.
Fig. 4 is the utility model the second fluid course control structure schematic diagram.
Fig. 5 is the utility model magnet exciting coil magnetic line of force distribution schematic diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 show the utility model structure diagram.It mainly include left hanging ring (1), piston rod (2), damper left end
Cover (3), damper cylinder body (4), piston head end cap (5), coil winding frame (6), magnet exciting coil (7), piston sleeve (8), circular cone
Sell (9), floating piston (10), damper right end cap (11), right hanging ring (12), piezoelectric transducer (13), valve port baffle (14),
Spring (15) and adjustment gasket (16).
Fig. 2 show the utility model piston head structural schematic diagram.It mainly include piston head end cap (5), coil winding frame
(6), magnet exciting coil (7), piston sleeve (8), valve port baffle (14), spring (15) and adjustment gasket (16).
Fig. 3 show the utility model tube-in-tube structure side view.Piston sleeve (8) end face be machined with 4 it is equally distributed
Circular through hole, a diameter of 1mm, 4 circular through holes form the second fluid course that magnetorheological fluid flows through；In piston sleeve (8)
Between position be machined with circular through hole.
Fig. 4 show the utility model the second fluid course control structure schematic diagram.Piston sleeve (8) is equipped with the second liquid stream
Channel；The second fluid course for controlling magnetorheological fluid is combined in valve port baffle (14), spring (15), adjustment gasket (16).
In compression process, internal liquid pressure compresses spring (15), so that valve port baffle (14) be made to open, magnetorheological fluid can pass through
Second fluid course forms the second fluid course；In springback process, valve port baffle (14), which is pressurized, is closed, and magnetorheological fluid cannot lead to
Cross the second fluid course.
Fig. 5 show the utility model magnet exciting coil magnetic line of force distribution schematic diagram.The utility model coil winding frame (6),
Piston sleeve (8) and damper cylinder body (4) are made of mild steel permeability magnetic material respectively, and remaining parts are by un-conducted magnetic material system
At.When being powered to magnet exciting coil (7), the magnetic field that magnet exciting coil (7) generates passes through coil winding frame (6), piston sleeve (8), the
Two fluid courses, piston sleeve (8), the first fluid course, damper cylinder body (4) finally return to coil winding frame (6) formation and close
Close circuit.
Utility model works principle is as follows:
Magnet exciting coil (7), which is powered, generates magnetic field, and due to magnetic fields, magnetorheological fluid its viscosity at fluid course can increase
Greatly, yield stress enhances.Magnetorheological fluid flows through this extended damping clearance, need to overcome the intermolecular of this catenation
Power, to increase the viscous damping force of MR damper.By adjusting size of current in magnet exciting coil (7), magnetic current can be changed
The yield stress for becoming liquid, reaches required output damping force.
In compression process, internal liquid pressure compresses spring (15), so that valve port baffle (14) are opened, magnetorheological fluid
Pass through the second fluid course；In springback process, valve port baffle (14), which is pressurized, is closed, and magnetorheological fluid cannot be logical by the second liquid stream
Road.
Claims (1)
1. a kind of vehicle suspension MR damper of integrated piezoelectric formula sensor, characterized by comprising: left hanging ring (1),
Piston rod (2), damper left end cap (3), damper cylinder body (4), piston head end cap (5), coil winding frame (6), magnet exciting coil
(7), piston sleeve (8), taper bolt (9), floating piston (10), damper right end cap (11), right hanging ring (12), piezoelectric type sensing
Device (13), valve port baffle (14), spring (15) and adjustment gasket (16)；Left hanging ring (1) and piston rod (2) company of being threadably secured
It connects；Circular through hole is machined among damper left end cap (3), piston rod (2) circumferential outer surface and damper left end cap (3) are round
Through-hole inner surface clearance fit, and be sealed by a seal ring；Damper left end cap (3) and damper cylinder body (4) pass through spiral shell
Nail is fixedly connected, and is sealed by a seal ring；Piston head end cap (5) circumferential inner surface and piston rod (2) circumferential outer surface
Transition fit；The intermediate position of piston rod (2) is machined with shoulder, and piston head end cap (5) left end carries out axially position by shoulder；It adjusts
Whole gasket (16) circumferential inner surface and piston head end cap (5) right end circumferential outer surface transition fit；It is tight to adjust gasket (16) left end
By piston head end cap (5) right end large end face；Adjustment gasket (16) right end is connect with spring (15) left end；Table in spring (15) circumference
Face and piston head end cap (5) circumferential outer surface clearance fit；Spring (15) right end is connect with valve port baffle (14)；Valve port baffle
(14) circumferential inner surface and piston head end cap (5) circumferential outer surface clearance fit；Valve port baffle (14) right end passes through piston sleeve
(8) left side carries out axially position；Coil winding frame (6) circumferential inner surface and piston rod (2) circumferential outer surface are interference fitted；Line
Circle bobbin winder bracket (6) circumferential outer surface is machined with toroidal cavity；It is recessed that magnet exciting coil (7) is wrapped in coil winding frame (6) circular ring shape
In slot；Coil winding frame (6), piston head end cap (5), piston rod (2) and left hanging ring (1) are machined with fairlead, magnet exciting coil
(7) lead passes sequentially through above-mentioned lead and draws；Piston sleeve (8) end face is machined with 4 equally distributed circular through holes, straight
Diameter is 1mm；4 circular through holes form the second fluid course that magnetorheological fluid flows through；The intermediate position of piston sleeve (8) is machined with circle
Shape through-hole；Piston sleeve (8) circular through hole inner surface and coil winding frame (6) external peripheral surface are interference fitted；Piston sleeve (8)
Annular gap between external peripheral surface and damper cylinder body (4) inner circumferential surface constitutes the first liquid stream that magnetorheological fluid flows through
Channel, radial gap width 1mm；Piston sleeve (8), coil winding frame (6) and piston rod (2) pass through taper bolt (9)
It is fixedly connected；Floating piston (10) circumferential outer surface and damper cylinder body (4) circumferential inner surface clearance fit, and pass through sealing ring
It is sealed；Damper right end cap (11) is fixedly connected with damper cylinder body (4) by screw, and is carried out by sealing ring close
Envelope；Damper right end cap (11) right end is machined with external screw thread, and right hanging ring (12) left end is machined with internal thread hole, and the two passes through screw thread
It is fastenedly connected；Right hanging ring (12) is machined with through-hole, and piezoelectric transducer (13) cylindrical outer surface and through-hole inner surface are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821166817.6U CN208619581U (en) | 2018-07-23 | 2018-07-23 | A kind of vehicle suspension MR damper of integrated piezoelectric formula sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821166817.6U CN208619581U (en) | 2018-07-23 | 2018-07-23 | A kind of vehicle suspension MR damper of integrated piezoelectric formula sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619581U true CN208619581U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821166817.6U Expired - Fee Related CN208619581U (en) | 2018-07-23 | 2018-07-23 | A kind of vehicle suspension MR damper of integrated piezoelectric formula sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619581U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942095A (en) * | 2020-07-27 | 2020-11-17 | 江苏大学 | Vehicle semi-active suspension with magnetic suspension spring and eddy current damper coupled for new energy vehicle |
| CN113027978A (en) * | 2021-04-30 | 2021-06-25 | 重庆大学 | Multi-loop asymmetric magnetorheological damper |
| CN114483862A (en) * | 2022-01-04 | 2022-05-13 | 株洲时代新材料科技股份有限公司 | Magneto-rheological damper |
| CN114483863A (en) * | 2022-01-27 | 2022-05-13 | 株洲时代新材料科技股份有限公司 | Magneto-rheological damper |
| CN114838081A (en) * | 2022-05-31 | 2022-08-02 | 武汉理工大学 | Two-chamber long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid |
-
2018
- 2018-07-23 CN CN201821166817.6U patent/CN208619581U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111942095A (en) * | 2020-07-27 | 2020-11-17 | 江苏大学 | Vehicle semi-active suspension with magnetic suspension spring and eddy current damper coupled for new energy vehicle |
| CN111942095B (en) * | 2020-07-27 | 2022-11-01 | 槃实科技(深圳)有限公司 | Vehicle semi-active suspension with magnetic suspension spring and eddy current damper coupled for new energy vehicle |
| CN113027978A (en) * | 2021-04-30 | 2021-06-25 | 重庆大学 | Multi-loop asymmetric magnetorheological damper |
| CN113027978B (en) * | 2021-04-30 | 2022-11-04 | 重庆大学 | Multi-loop asymmetric magnetorheological damper |
| CN114483862A (en) * | 2022-01-04 | 2022-05-13 | 株洲时代新材料科技股份有限公司 | Magneto-rheological damper |
| CN114483863A (en) * | 2022-01-27 | 2022-05-13 | 株洲时代新材料科技股份有限公司 | Magneto-rheological damper |
| CN114838081A (en) * | 2022-05-31 | 2022-08-02 | 武汉理工大学 | Two-chamber long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid |
| CN114838081B (en) * | 2022-05-31 | 2023-09-12 | 武汉理工大学 | Two-chamber long-stroke magnetorheological fluid damper capable of saving magnetorheological fluid |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |