CN101323236B - Magnetic Variable Stiffness Suspension Spring Device - Google Patents
Magnetic Variable Stiffness Suspension Spring Device Download PDFInfo
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- CN101323236B CN101323236B CN2008100700643A CN200810070064A CN101323236B CN 101323236 B CN101323236 B CN 101323236B CN 2008100700643 A CN2008100700643 A CN 2008100700643A CN 200810070064 A CN200810070064 A CN 200810070064A CN 101323236 B CN101323236 B CN 101323236B
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- Prior art keywords
- spring
- guide rod
- sleeve
- support
- magnetic ring
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- 239000000725 suspension Substances 0.000 title claims abstract description 51
- 238000013016 damping Methods 0.000 claims abstract 13
- 239000000872 buffer Substances 0.000 claims description 23
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000006096 absorbing agent Substances 0.000 claims 9
- 230000035939 shock Effects 0.000 claims 9
- 230000001846 repelling effect Effects 0.000 claims 3
- 239000000203 mixture Substances 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 description 7
- 230000002441 reversible effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a magnetic stiffness-variable bearing spring device, which is composed of an upper spring bracket, a coil spring, a vibration damping bumper and a lower spring bracket; the vibration damping bumper is arranged inside the coil spring; the upper end of the vibration damping bumper is connected with the upper spring bracket; the lower end of the vibration damping bumper is connected with the lower spring bracket; the vibration damping bumper adjusts in real-time the stiffness characteristic of the bearing spring device by adopting the principle of homopolar repulsion of a permanent magnet; according to different structural styles of the vibration damping bumper, the style of the vibration damping bumper can be divided into an upper bracket style, a lower bracket style and a two-way style. The bearing spring device has variable stiffness characteristic so that an automobile has a fairly good riding comfort under various loading situations; meanwhile, when the automobile drives on a bad road, the bearing spring device is capable of preventing a suspension system from colliding and protecting a part from early damage so as to improve the operational reliability of the suspension system; the spring installation fully utilizes the inner space of the coil spring, thereby having the advantages of simple structure and easy implementation.
Description
Technical field
The present invention relates to a kind of spiral spring device of suspension system, especially have the spiral spring device that becomes stiffness characteristics and can prevent suspension system generation bump.
Background technology
At present, spiral spring device in the automobile suspension system is to be assembled by coil spring and spring bearing, it flexibly links together vehicle bridge and vehicle frame, the vertical load of transfer function between them, and rely on helical spring distortion to absorb energy, relax the impulsive force that is produced when automobile travels on uneven road surface, thereby guarantee ride of vehicle.Common coil spring is after design is finished, and its elasticity modulus is invariable, that is to say that its spring stiffness can not change according to the variation of load.But, the load of automobile differs greatly at unloaded and at full load, rear suspension for goods carrying vehicle is particularly evident, if helical spring rigidity is invariable, just following situation may appear so in the load change scope of expection: automobile at full load satisfy that offset frequency requires and during zero load offset frequency excessive, riding comfort is reduced, or satisfy that offset frequency requires when unloaded and the at full load dynamic deflection is too small, frequently clash into limiting stopper in the process of moving, in addition, rigidity unmodified spiral spring device also is easy to generate resonance, and from ground-surface vibration and resonance mutual superposition, the easier passenger that makes is felt under the weather and fatigue.At present, overcoming the above problems the method that is adopted is to change helical spring geometric properties to obtain the change stiffness characteristics, Chinese patent notification number CN2325586Y, the day for announcing is on June 23rd, 1999, and name is called has announced a kind of coil spring that becomes stiffness characteristics that has in ' variable section material coil spring '.This patent changes its spring stiffness by changing helical spring spring filament diameter, has solved automobile in capability conflicts unloaded and that at full load exists.But variable section material coil spring exists shortcomings such as rolling technology complexity, manufacturing difficulty at manufacturing process, have certain technical matters in actual applications.
Automobile in the process of moving, the road surface can not be definitely smooth, the road that cross-country car and full-region vehicle passed through particularly, the road surface has impact for the antagonistic force of wheel often, this impulsive force may reach very big numerical value.When impulsive force is delivered to vehicle frame and vehicle body by the axle spring device, passenger is felt under the weather, goods also can sustain damage, and causes the infantile failure of vehicle parts, influences the service life of suspension system.In order to improve this situation, connect vehicle bridge and the vehicle frame except adopting elastic element, also need inhibiting device be installed in suspension system and relax this impulsive force.The current inhibiting device that generally adopts the rubber limiting stopper as suspension system, but, when from the ground-surface impulsive force when excessive, the amount of compression of elastic rubbery body can surpass 50%, the rubber limiting stopper can cause explosion and inefficacy because can't dodge between vehicle bridge and vehicle frame, in addition, it is very big that the rubber limiting stopper can not design, so its movement travel is limited, endergonic function also can be restricted.
Summary of the invention
Purpose of the present invention is exactly can not adjust spring stiffness and can't prevent that suspension system from the deficiency of bump taking place according to load change in order to overcome existing axle spring device, a kind of magnetic controlled suspension spring mechanism is provided, this device not only can be adjusted the stiffness characteristics of axle spring device in real time according to the load change of automobile, improve ride of vehicle, and can cushion and come from the excessive impulsive force of ground-surface, prevent that effectively suspension system from clashing into.
The present invention adopts following technical scheme: magnetic controlled suspension spring mechanism disclosed in this invention is by upper bracket of the spring, coil spring, shock-absorbing buffer and spring lower support constitute, shock-absorbing buffer is installed in coil spring inside, described coil spring upper end is connected with upper bracket of the spring, its lower end is connected with spring lower support, described shock-absorbing buffer is installed in coil spring inside, the upper end of shock-absorbing buffer is connected with upper bracket of the spring, the lower end is connected with spring lower support, and shock-absorbing buffer utilizes the stiffness characteristics of the principle real-time regulated axle spring device of permanent magnet homopolar-repulsion.
The present invention is divided into upper bracket formula, undersetting formula and three kinds of forms of reversible according to the difference of shock-absorbing buffer version.Upper bracket formula magnetic controlled suspension spring mechanism is linked in sequence by upper bracket of the spring, upper bracket magnet ring, last pilot bar, sleeve upper magnetic ring, pilot bar sleeve and spring lower support and forms, the upper end of last pilot bar and upper bracket of the spring bolted connection, pilot bar sleeve lower end and spring lower support bolted connection, upper bracket magnet ring and sleeve upper magnetic ring are separately fixed at the top of upper bracket of the spring bottom and pilot bar sleeve according to the adjacent mode of homopolarity.When wheel is beated on uneven road surface, pilot bar sleeve and sleeve upper magnetic ring can move together along the direction of last pilot bar, the phase repulsive interaction that produces between sleeve upper magnetic ring and the upper bracket magnet ring can change along with the variation of two magnet ring spacings, thereby buffering comes from ground impulsive force effectively.Undersetting formula magnetic controlled suspension spring mechanism is linked in sequence by magnet ring, following pilot bar, undersetting magnet ring and spring lower support under upper bracket of the spring, pilot bar sleeve, the sleeve and forms, the upper end of pilot bar sleeve and upper bracket of the spring bolted connection, following pilot bar lower end and spring lower support bolted connection, under the sleeve magnet ring and undersetting magnet ring according to the adjacent mode of homopolarity be separately fixed at the pilot bar sleeve bottom with spring lower support top.When suspension system is moved because of vertical load changes, magnet ring can move together along the direction of following pilot bar under pilot bar sleeve and the sleeve, the phase repulsive interaction that produces between magnet ring and the undersetting magnet ring under the sleeve also changes along with the variation of two magnet ring spacings, phase repulsive interaction that produces between magnet ring and the undersetting magnet ring under the sleeve and coil spring power together support car load can make vehicle can both reach travelling comfort preferably under the different loads situation.The reversible magnetic controlled suspension spring mechanism is by upper bracket of the spring, the upper bracket magnet ring, last pilot bar, the sleeve upper magnetic ring, the pilot bar sleeve, magnet ring under the sleeve, following pilot bar, undersetting magnet ring and spring lower support are linked in sequence and form, the upper end of last pilot bar and upper bracket of the spring bolted connection, following pilot bar lower end and spring lower support bolted connection, upper bracket magnet ring and sleeve upper magnetic ring are separately fixed at the top of upper bracket of the spring bottom and pilot bar sleeve according to the adjacent mode of homopolarity, under the sleeve magnet ring and undersetting magnet ring according to the adjacent mode of homopolarity be separately fixed at the pilot bar sleeve bottom with spring lower support top, install according to the adjacent mode of heteropole between the magnet ring under sleeve upper magnetic ring and the sleeve.When suspension system is subjected to from ground-surface impulsive force when excessive, upper and lower pilot bar passes pilot bar sleeve up-and-down movement, when coil spring approach to press fully and state the time, the phase repulsive interaction between the two pairs of magnet rings all reaches maxim, can prevent effectively that suspension system from clashing into.
The disk diameter of described magnet ring is less than helical spring spring inside diameter.
Pilot bar length in described upper bracket formula and the undersetting formula magnetic controlled suspension spring mechanism is less than the length of pilot bar sleeve inner core.
The length sum of the upper and lower pilot bar in the described reversible magnetic controlled suspension spring mechanism is less than the length of pilot bar sleeve inner core.
The spacing of shock-absorbing buffer magnet ring when free state in described upper bracket formula and the undersetting formula magnetic controlled suspension spring mechanism is less than helical spring maximum deformation quantity.
The spacing sum of two pairs of magnet rings of shock-absorbing buffer in the described reversible magnetic controlled suspension spring mechanism when free state is less than helical spring maximum deformation quantity.
The invention has the beneficial effects as follows that this axle spring device has the change stiffness characteristics, can make automobile under various load conditions, all have travelling comfort preferably; Simultaneously, when automobile travelled under abominable road conditions, this device can prevent that suspension system from clashing into, and avoids the infantile failure of parts, the functional reliability of raising suspension system; Make full use of helical spring inner space, simple in structure and easy to implement.
Description of drawings
Fig. 1 is the magnetic controlled suspension spring mechanism structural representation;
Fig. 2 is the sectional structural map of upper bracket formula magnetic controlled suspension spring mechanism;
Fig. 3 is the sectional structural map of undersetting formula magnetic controlled suspension spring mechanism;
Fig. 4 is the sectional structural map of reversible magnetic controlled suspension spring mechanism.
Among the above-mentioned figure: 1. upper bracket of the spring, 2. the upper bracket magnet ring is 3. gone up pilot bar, 4. sleeve upper magnetic ring, 5. coil spring, 6. pilot bar sleeve, 7. magnet ring under the sleeve 8. descends pilot bar, 9. undersetting magnet ring, 10. spring lower support, 11. shock-absorbing buffers.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Magnetic controlled suspension spring mechanism involved in the present invention is made of upper bracket of the spring, coil spring, shock-absorbing buffer and spring lower support, shock-absorbing buffer is installed in coil spring inside, and the present invention is divided into upper bracket formula, undersetting formula and three kinds of forms of reversible according to the difference of shock-absorbing buffer version.
Fig. 1 is the magnetic controlled suspension spring mechanism structural representation, this device is made up of upper bracket of the spring 1, coil spring 5, spring lower support 10, shock-absorbing buffer 11, coil spring 5 upper ends are connected with upper bracket of the spring 1 on being fixed on vehicle frame, the lower end of coil spring 5 is connected with spring lower support 10 on being fixed on vehicle bridge, shock-absorbing buffer 11 is installed in axle spring 5 inside, and its upper and lower end is used bolt with upper bracket of the spring 1 and spring lower support 10 respectively.
Fig. 2 is the sectional structural map of upper bracket formula magnetic controlled suspension spring mechanism, and this installs by upper bracket of the spring 1, upper bracket magnet ring 2, upward pilot bar 3, sleeve upper magnetic ring 4, coil spring 5, pilot bar sleeve 6 and spring lower support 10 are formed.Upper bracket of the spring 1 is fixed on the vehicle frame, upper bracket magnet ring 2 is positioned at the top of pilot bar 3, adopt bolt to be fixed on the upper bracket of the spring 1, sleeve upper magnetic ring 4 is fixed by bolts to the top of pilot bar sleeve 6 according to the adjacent mode of homopolarity, be that upper bracket magnet ring 2 and sleeve upper magnetic ring 4 are installed according to the mode of N-N or S-S, the disk diameter of sleeve upper magnetic ring 4 is less than the spring inside diameter of coil spring 5, prevent to bump in the motion process, pilot bar sleeve 6 bottoms and spring lower support 10 are used bolt.When wheel is beated on uneven road surface, sleeve upper magnetic ring 4 and pilot bar sleeve 6 can move together along the direction of last pilot bar 3, the phase repulsive interaction that produces between sleeve upper magnetic ring 4 and the upper bracket magnet ring 2 can change along with the variation of two magnet ring spacings, thereby buffering comes from ground impulsive force effectively.
Fig. 3 is the sectional structural map of undersetting formula magnetic controlled suspension spring mechanism, and this device is made up of magnet ring 7, following pilot bar 8, undersetting magnet ring 9 and spring lower support 10 under upper bracket of the spring 1, coil spring 5, pilot bar sleeve 6, the sleeve.Utilize bolt magnet ring under the sleeve 7 to be fixed on the lower end of pilot bar sleeve 6, undersetting magnet ring 9 is positioned at the lower end of pilot bar 8 down, and adopt bolt and spring lower support 10 to be fixed together, magnet ring 7 and undersetting magnet ring 9 installation directions are that homopolarity is adjacent under the sleeve, and promptly magnet ring 7 and undersetting magnet ring 9 are installed according to the mode of N-N or S-S under the sleeve.Following pilot bar 8 can slide in pilot bar sleeve 6, and the length of following pilot bar 8 prevents that less than the length of pilot bar sleeve 6 inner cores coil spring 5 from causing down pilot bar 80 to damage when pressing also fully.When suspension system is moved because of vertical load changes, from the ground-surface vibration coil spring 5 is deformed, magnet ring 7 can move together along the direction of following pilot bar 8 under pilot bar sleeve 6 and the sleeve, magnet ring 7 can be adjusted the stiffness characteristics of spring installation in real time with the repulsive interaction mutually that undersetting magnet ring 9 produces under the sleeve, thereby makes vehicle reach travelling comfort preferably.
Fig. 4 is the sectional structural map of reversible magnetic controlled suspension spring mechanism, this device is by upper bracket of the spring 1, upper bracket magnet ring 2, last pilot bar 3, sleeve upper magnetic ring 4, coil spring 5, pilot bar sleeve 6, magnet ring 7 under the sleeve, following pilot bar 8, undersetting magnet ring 9 and spring lower support 10 are formed, upper bracket of the spring 1 and upper bracket magnet ring 2 usefulness bolts are fixed on the top of pilot bar 3 successively, fixing successively pilot bar 8 bottoms down of undersetting magnet ring 9 and spring lower support 10 usefulness bolts, the two ends of pilot bar sleeve 6 are enclosed within the bottom of pilot bar 3 and the top of following pilot bar 8 respectively, pilot bar sleeve 6 can be along the direction up-and-down movement of last pilot bar 3 and following pilot bar 8, magnet ring 9 is fixed by bolts to the top and bottom of pilot bar sleeve 6 respectively under sleeve upper magnetic ring 4 and the sleeve, install according to the adjacent mode of homopolarity between sleeve upper magnetic ring 4 and the upper bracket magnet ring 2, also install between magnet ring 7 and the undersetting magnet ring 9 under the sleeve according to the adjacent mode of homopolarity, then install according to the adjacent mode of heteropole between the magnet ring 7 under sleeve upper magnetic ring 4 and the sleeve, promptly the magnet ring of shock-absorbing buffer 11 is installed according to the mode of N-N-S-S or S-S-N-N from top to bottom.When the impulsive force that is subjected to when vehicle is excessive, coil spring 5 approaches to press fully state also, magnet ring 7 all reaches maxim with repulsive interaction mutually between the undersetting magnet ring 9 under upper bracket magnet ring 2 and sleeve upper magnetic ring 4 and the sleeve, can cushion to greatest extent, prevent that suspension system from causing damage of components because of bump from the ground-surface impulsive force.
The embodiment that more than provides is in order to the practical application of explanation the present invention and it, and therefore makes those skilled in the art can make and use the present invention.But this only is a preferred embodiment, be not that the present invention is done any pro forma restriction, any one professional and technical personnel does certain change as the equivalent embodiment that is considered as equivalent variations according to above technology and method in the scope that does not depart from technical solution of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100700643A CN101323236B (en) | 2008-07-31 | 2008-07-31 | Magnetic Variable Stiffness Suspension Spring Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100700643A CN101323236B (en) | 2008-07-31 | 2008-07-31 | Magnetic Variable Stiffness Suspension Spring Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101323236A CN101323236A (en) | 2008-12-17 |
| CN101323236B true CN101323236B (en) | 2010-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100700643A Expired - Fee Related CN101323236B (en) | 2008-07-31 | 2008-07-31 | Magnetic Variable Stiffness Suspension Spring Device |
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| Country | Link |
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| CN (1) | CN101323236B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3028452A1 (en) * | 2014-11-14 | 2016-05-20 | Peugeot Citroen Automobiles Sa | PERMANENT MAGNET STOPPER DEVICE FOR SUSPENSION OF A MOTOR VEHICLE |
| CN106004310B (en) * | 2016-06-22 | 2018-11-02 | 北京长安汽车工程技术研究有限责任公司 | A kind of automobile and suspension offset frequency regulating device |
| US11021029B2 (en) | 2018-02-28 | 2021-06-01 | Eric Harrison | Vehicle suspension assembly and method |
| CN109649103A (en) * | 2019-01-22 | 2019-04-19 | 河南科技大学 | Suspension system and vehicle |
| CN109866571B (en) * | 2019-03-21 | 2020-10-30 | 郑州科技学院 | Control mechanism and moving vehicle |
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2008
- 2008-07-31 CN CN2008100700643A patent/CN101323236B/en not_active Expired - Fee Related
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| CN101323236A (en) | 2008-12-17 |
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Granted publication date: 20100728 Termination date: 20200731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |