CN206802174U - Vehicle suspension Novel magneto-rheological damper with bypass fluid course - Google Patents
Vehicle suspension Novel magneto-rheological damper with bypass fluid course Download PDFInfo
- Publication number
- CN206802174U CN206802174U CN201720724877.4U CN201720724877U CN206802174U CN 206802174 U CN206802174 U CN 206802174U CN 201720724877 U CN201720724877 U CN 201720724877U CN 206802174 U CN206802174 U CN 206802174U
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- piston
- end cap
- damper
- fluid course
- winding frame
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Abstract
The utility model discloses a kind of vehicle suspension Novel magneto-rheological damper of band bypass fluid course, mainly it is made up of piston rod, attenuator end cap, damper cylinder barrel, piston bore, piston end cap, coil winding frame, valve body, floating piston, magnetic conduction disk and spring etc..Fluid course between piston rod, magnetic conduction disk and coil winding frame forms radial flow dynamic formula damp channel and axial flow-type damp channel, forms the first fluid course；Valve body outside piston head is provided with the second bypass fluid course.For piston in compression process, internal liquid pressure makes spring-compressed, so that valve port baffle plate is opened, magnetic flow liquid passes through the first fluid course and the second bypass fluid course；In springback process, valve port baffle plate can not be opened, and magnetic flow liquid can only can not be flowed back by the second bypass fluid course by the first fluid course.The compression damping of MR damper is thus set to be damped less than resilience, so as to can further improve vehicle riding comfort.
Description
Technical field
A kind of MR damper is the utility model is related to, more particularly to a kind of vehicle suspension of band bypass fluid course is used
Novel magneto-rheological damper.
Background technology
Vehicle can produce in the process of moving it is a series of jolt and vibrate, so as to reduce riding comfort.In order to gram
Clothes vibration, improves riding comfort, typically can all set shock absorber on a vehicle suspension.Different from common shock-absorbing spring, subtract
The device that shakes needs larger damping force to consume the energy of vibration as a kind of energy dissipation unit, so as to reach effectiveness in vibration suppression.
MR damper has Millisecond response speed, big control range as a kind of new semi- active control element
The features such as with big output damping force, therefore universal use has been obtained in vibration insulating system.Traditional MR damper passes through
The electric current being passed through to magnet exciting coil is controlled, so as to control the size of output damping force.Limited by structure, traditional magnetorheological damping
Device compression damping damps equal in magnitude with resilience.Therefore, if be used in vehicle suspension, relaxed for improving vehicle ride
Adaptive it is ineffective；In actual applications in order to obtain preferable effectiveness in vibration suppression, the rebound velocity of shock absorber typically requires slow
In compression speed, i.e. compression damping damps less than resilience.
In addition, most of existing MR damper is all the shearing-type damping device of single channel, the liquid stream of magnetic flow liquid
Damp channel is mainly set between coil and cylinder body, it is necessary to ensure that flowing to for magnetic direction and magnetic flow liquid is perpendicular, otherwise
Optimum efficiency can not be reached；Under the premise of this, also to make the area of liquid stream damp channel as big as possible, to obtain enough resistances
Buddhist nun's power, it can typically make its volume bigger, and damping force adjustable extent is narrow.
The content of the invention
In order to overcome problem present in background technology, the utility model proposes a kind of vehicle of band bypass fluid course to hang
Frame Novel magneto-rheological damper.Fluid course between piston rod, magnetic conduction disk and coil winding frame forms Radial Flow
Formula damp channel and axial flow-type damp channel, form the first fluid course；Valve body outside piston head is provided with by the of second
Logical fluid course；Valve body, valve port baffle plate and compression spring combine the second bypass fluid course of control magnetic flow liquid.
When being passed through electric current to magnet exciting coil, a certain size magnetic field will be produced in two sections of damp channels of the first fluid course, and
The magnetic line of force passes perpendicularly through this two sections of damp channels so that flows through the magnetic flow liquid viscosity increase of two sections of damp channels, yield stress
Enhancing, produces larger damping force.For piston in compression process, internal liquid pressure makes spring-compressed, so that valve port baffle plate is beaten
Open, magnetic flow liquid passes through the first fluid course and the second bypass fluid course；In springback process, valve port baffle plate can not be opened, magnetic
Rheology liquid can not can only pass through the first fluid course by the second bypass fluid course.So just make the pressure of MR damper
Contracting damping is less than resilience and damped, so as to can further improve vehicle riding comfort.
Technical scheme includes used by the utility model solves its technical problem：Left hanger (1), damper cylinder barrel (2),
Piston bore (3), magnet exciting coil (4), valve body (5), coil winding frame (6), magnetic conduction disk (7), floating piston (8), damper
Right end cap (9), right hanger (10), counterbalance spring (11), piston right end cap (12), pad (13), valve port baffle plate (14), compression bullet
Spring (15), piston left end cap (16), damper left end cap (17) and piston rod (18)；Left hanger (1) is logical with piston rod (18)
Cross the connection that is screwed；Manhole, piston rod (18) and damper left end cap are machined among damper left end cap (17)
(17) manhole internal surface gaps coordinate, and are sealed by sealing ring；Piston rod (18) left end is machined with circumferential uniform
3 manholes, and with centre processing blind round hole connect；Damper left end cap (17) is interior with damper cylinder barrel (2)
Surface gap coordinates, and is sealed by sealing ring；Damper left end cap (17) is fixed with damper cylinder barrel (2) by screw
Connection；Manhole is machined among piston left end cap (16), through-hole inner surface coordinates with piston rod (18) outer surface gap；It is living
Plug left end cap (16) is fixedly connected with piston bore (3) by screw；Through hole is threaded among coil winding frame (6), it is living
Stopper rod (18) right-hand member is machined with external screw thread, and piston rod (18) is fastenedly connected by screw thread and coil winding frame (6)；Coil winding frame
(6) winding slot is machined with, magnet exciting coil (4) is wrapped in coil winding frame (6) winding slot；Magnetic conduction disk (7) left side and line
Circle is furnished with pad (13) between bobbin winder bracket (6) right side, and the width of pad (13) is 1.0mm；Magnetic conduction disk (7), pad (13)
And coil winding frame (6) is fixedly connected by screw；Magnetic conduction disk (7) radial circumference outer surface and piston bore (3) circumference
There are 1.0mm annular gaps between inner surface；Left between magnetic conduction disk (7) left side and coil winding frame (6) right side for magnetic
The radial clearance that rheology liquid passes through, radial gap width 1.0mm；Coil winding frame (6) external peripheral surface and piston bore (3)
Internal surface gaps coordinate, and right-hand member is sealed by sealing ring；Piston right end cap (12) is matched somebody with somebody with piston bore (3) internal surface gaps
Close, and sealed by sealing ring；Manhole is machined among piston right end cap (12), and passes through screw with piston bore (3)
It is fixedly connected；The lead of magnet exciting coil (4) by the wire lead slot of coil winding frame (6), piston left end cap (16) fairlead and
The fairlead of piston rod (18) is drawn；Valve body (5) circumferential inner surface and piston bore (3) outer surface interference fits, and pass through weldering
Connect fixation；Valve body (5) carries out axially position by the shaft shoulder on the right side of piston bore (3)；Valve body (5) outer surface and damper cylinder barrel
(2) circumferential inner surface gap coordinates；Valve port baffle plate (14) circumferential inner surface coordinates with piston bore (3) outer surface gap；Compression
Spring (15) circumferential inner surface coordinates with piston bore (3) outer surface gap；Compression spring (15) right-hand member and valve port baffle plate (14)
Connection；Piston bore (3) left axle shoulder is connected with compression spring (15) left end；Floating piston (8) outer surface and damper cylinder barrel (2)
Internal surface gaps coordinate, and are sealed by sealing ring；Circular counter bore is machined among damper right end cap (9), compensates bullet
Spring (11) left end contacts with floating piston (8) right side, and right-hand member coordinates with damper right end cap (9) circular counter bore gap；Damping
Device right end cap (9) coordinates with damper cylinder barrel (2) internal surface gaps, and is sealed by sealing ring；Damper right end cap (9)
It is fixedly connected with damper cylinder barrel (2) by screw；Damper right end cap (9) is threadably secured with right hanger (10) and is connected.
The utility model has an advantageous effect in that compared with background technology：
(1) liquid stream between the piston rod of the utility model MR damper, magnetic conduction disk and coil winding frame is led to
Road forms radial flow dynamic formula damp channel and axial flow-type damp channel, this structure design take full advantage of walking for the magnetic line of force
To effectively increasing relaxation length, ensure that damper can export sufficiently large damping force.
(2) the distinctive valve body structure design of the utility model MR damper, the second bypass fluid course is formed, can
Compression damping is set to be damped less than resilience, so as to improve vehicle riding comfort.
(3) the utility model MR damper damping force dynamic regulation scope is big, simple in construction and small volume, especially
Suitable for railway, vehicle, the isostructural vibration damping vibration prevention system of bridge.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the distribution of the utility model magnetic line of force and damp channel distribution schematic diagram.
Fig. 3 is that magnetic flow liquid flows through fluid course schematic diagram when the utility model piston rod is pressurized.
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.Mainly include：Left hanger 1, damper cylinder barrel 2, piston bore 3,
Magnet exciting coil 4, valve body 5, coil winding frame 6, magnetic conduction disk 7, floating piston 8, damper right end cap 9, right hanger 10, compensation bullet
Spring 11, piston right end cap 12, pad 13, valve port baffle plate 14, compression spring 15, piston left end cap 16, damper left end cap 17 with
And piston rod 18.
It is the distribution of the utility model magnetic line of force and damp channel distribution schematic diagram shown in Fig. 2.The left side of magnetic conduction disk 7 and line
Leave the radial flow of liquid passage passed through for magnetic flow liquid between circle bobbin winder bracket 6 right side, the radial circumference outer surface of magnetic conduction disk 7 with
The annular fluid course passed through for magnetic flow liquid is left between the circumferential inner surface of piston bore 3；The width of two sections of effective damping passages
Degree is 1.0mm.Magnet exciting coil 4 and coil winding frame 6 are the internal magnetic circuit that magnetic field occurs, and magnetic field starts from coil winding frame 6, according to
It is secondary to pass through annulus flow-type damp channel, magnetic conduction disk 7 and radial flow dynamic formula damp channel, return again to coil winding frame 6 and live
Stopper rod 18, form closed-loop path.
Fig. 3 is that magnetic flow liquid flows through fluid course schematic diagram when the utility model piston rod is pressurized.When piston rod 18 is pressurized
When, the magnetic flow liquid in MR damper right cavity sequentially enters annulus by the intermediate throughholes of damper left end cap 17 and flowed
Formula damp channel and radial flow dynamic formula damp channel, subsequently into the middle blind hole of piston rod, finally by piston rod right-hand member week
Enter left cavity to 3 uniform through holes.
Utility model works principle is as follows：
When being passed through a certain size electric current to magnet exciting coil 4, due to magnetic fields, radial flow dynamic formula damp channel and annulus
Its viscosity of the magnetic flow liquid of the first fluid course of flow-type damp channel composition can increase, yield stress enhancing, so as to damp
Device damping force increases, and by adjusting size of current in magnet exciting coil 4, can change the yield stress of magnetic flow liquid, needed for reaching
Output damping force.Piston is in compression process simultaneously, and internal liquid pressure compresses spring 15, so that valve port baffle plate 14 is beaten
Open, magnetic flow liquid passes through first and second bypass fluid course；In springback process, valve port baffle plate 14 can not be opened, magnetic flow liquid
It can only can not be flowed back by the second bypass fluid course by the first fluid course.Thus make the compression of MR damper
Damping is less than resilience and damped, so as to improve vehicle riding comfort.
Claims (1)
- A kind of 1. vehicle suspension Novel magneto-rheological damper of band bypass fluid course, it is characterised in that including：Left hanger (1), damper cylinder barrel (2), piston bore (3), magnet exciting coil (4), valve body (5), coil winding frame (6), magnetic conduction disk (7), Floating piston (8), damper right end cap (9), right hanger (10), counterbalance spring (11), piston right end cap (12), pad (13), Valve port baffle plate (14), compression spring (15), piston left end cap (16), damper left end cap (17) and piston rod (18)；Hang on a left side Ear (1) is threadably secured with piston rod (18) and is connected；Manhole, piston rod are machined among damper left end cap (17) (18) coordinate with damper left end cap (17) manhole internal surface gaps, and sealed by sealing ring；Piston rod (18) Left end is machined with circumferential 3 uniform manholes, and is connected with the blind round hole of centre processing；Damper left end cap (17) Coordinate with damper cylinder barrel (2) internal surface gaps, and sealed by sealing ring；Damper left end cap (17) and damper cylinder Cylinder (2) is fixedly connected by screw；Manhole, through-hole inner surface and piston rod (18) are machined among piston left end cap (16) Outer surface gap coordinates；Piston left end cap (16) is fixedly connected with piston bore (3) by screw；Among coil winding frame (6) Through hole is threaded, piston rod (18) right-hand member is machined with external screw thread, and piston rod (18) is tight by screw thread and coil winding frame (6) It is solidly connected；Coil winding frame (6) is machined with winding slot, and magnet exciting coil (4) is wrapped in coil winding frame (6) winding slot；Magnetic conduction It is furnished with pad (13) between disk (7) left side and coil winding frame (6) right side, the width of pad (13) is 1.0mm；Magnetic conduction Disk (7), pad (13) and coil winding frame (6) are fixedly connected by screw；Magnetic conduction disk (7) radial circumference outer surface with There are 1.0mm annular gaps between piston bore (3) circumferential inner surface；Magnetic conduction disk (7) left side and coil winding frame (6) right-hand member The radial clearance passed through for magnetic flow liquid, radial gap width 1.0mm are left between face；Coil winding frame (6) cylindrical weekly form Face coordinates with piston bore (3) internal surface gaps, and right-hand member is sealed by sealing ring；Piston right end cap (12) and piston bore (3) internal surface gaps coordinate, and are sealed by sealing ring；Manhole, and and piston are machined among piston right end cap (12) Cylinder barrel (3) is fixedly connected by screw；Wire lead slot, piston left end cap of the lead of magnet exciting coil (4) by coil winding frame (6) (16) fairlead of fairlead and piston rod (18) is drawn；Valve body (5) circumferential inner surface and piston bore (3) outer surface transition Coordinate, and by being welded and fixed；Valve body (5) carries out axially position by the shaft shoulder on the right side of piston bore (3)；Valve body (5) outer surface Coordinate with damper cylinder barrel (2) circumferential inner surface gap；Between valve port baffle plate (14) circumferential inner surface and piston bore (3) outer surface Gap coordinates；Compression spring (15) circumferential inner surface coordinates with piston bore (3) outer surface gap；Compression spring (15) right-hand member and valve Mouth baffle plate (14) connection；Piston bore (3) left axle shoulder is connected with compression spring (15) left end；Floating piston (8) outer surface and resistance Buddhist nun's device cylinder barrel (2) internal surface gaps coordinate, and are sealed by sealing ring；Circle is machined among damper right end cap (9) Counterbore, counterbalance spring (11) left end contact with floating piston (8) right side, between right-hand member and damper right end cap (9) circular counter bore Gap coordinates；Damper right end cap (9) coordinates with damper cylinder barrel (2) internal surface gaps, and is sealed by sealing ring；Damping Device right end cap (9) is fixedly connected with damper cylinder barrel (2) by screw；Damper right end cap (9) passes through spiral shell with right hanger (10) Line is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724877.4U CN206802174U (en) | 2017-06-21 | 2017-06-21 | Vehicle suspension Novel magneto-rheological damper with bypass fluid course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724877.4U CN206802174U (en) | 2017-06-21 | 2017-06-21 | Vehicle suspension Novel magneto-rheological damper with bypass fluid course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802174U true CN206802174U (en) | 2017-12-26 |
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ID=60749291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720724877.4U Expired - Fee Related CN206802174U (en) | 2017-06-21 | 2017-06-21 | Vehicle suspension Novel magneto-rheological damper with bypass fluid course |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802174U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458717A (en) * | 2022-01-04 | 2022-05-10 | 浙江路得坦摩汽车部件股份有限公司 | Cylinder inner cavity self-compensation type 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 |
| CN115076283A (en) * | 2022-06-27 | 2022-09-20 | 西格迈股份有限公司 | Magnetorheological damper with magnetorheological fluid E-shaped circulation channel for new energy automobile |
-
2017
- 2017-06-21 CN CN201720724877.4U patent/CN206802174U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458717A (en) * | 2022-01-04 | 2022-05-10 | 浙江路得坦摩汽车部件股份有限公司 | Cylinder inner cavity self-compensation type magneto-rheological damper |
| CN114458717B (en) * | 2022-01-04 | 2023-07-18 | 浙江路得坦摩汽车部件股份有限公司 | Self-compensating magnetorheological damper for inner cavity of cylinder body |
| 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 |
| CN115076283A (en) * | 2022-06-27 | 2022-09-20 | 西格迈股份有限公司 | Magnetorheological damper with magnetorheological fluid E-shaped circulation channel for new energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180621 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |