CN101774341A - Vehicle suspension bracket with motion transformation spiral fly wheel - Google Patents
Vehicle suspension bracket with motion transformation spiral fly wheel Download PDFInfo
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- CN101774341A CN101774341A CN200910103050A CN200910103050A CN101774341A CN 101774341 A CN101774341 A CN 101774341A CN 200910103050 A CN200910103050 A CN 200910103050A CN 200910103050 A CN200910103050 A CN 200910103050A CN 101774341 A CN101774341 A CN 101774341A
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Abstract
The invention relates to a vehicle suspension bracket with a motion transformation spiral fly wheel, which is mainly formed by connecting a spring, a damper and a motion transformation spiral fly wheel in parallel. The motion transformation spiral fly wheel comprises a ball screw a fly wheel, a bearing and a shell, wherein the fly wheel and the ball screw is a set of a spiral driving device, and the bearing and the shell can realize linear/revolution motion transformation. The radius of the fly wheel is larger than the screw pitch of the ball screw, so that the inertial mass of the fly wheel can be amplified. The motion transformation spiral fly wheel can store and release the energy and stop low-frequency vibration, the spring can store and release the energy and stop high-frequency vibration, and the damper can consume the vibration energy, so that the parallel connection of the three can cushion and absorb each frequency range vibration between the road surface and the vehicle.
Description
Technical field
The present invention relates to a kind of vehicle suspension, refer in particular to the vehicle suspension that constitutes by spring, damper and the parallel connection of movement conversion spiral fly wheel.
Background technology
Suspension is to guarantee good travelling comfort, safety and the handling vitals of vehicle.Traditional vehicle suspension generally can be divided into active suspension, semi-active suspension and passive suspension.Initiatively and semi-active suspension have higher Combination property in theory, but because complex structure, poor reliability, cost are higher, thereby drop into actual use still have quite difficult.Chinese patent 200310109174.3 discloses a kind of motor energy-storage type active suspension, this active suspension adopts motor transmission system to replace power hydraulic system, improved many defectives of original hydraulic type active suspension, but only be to make applying of active suspension become possibility at present.The 200610054068.3 pairs of auto magnetorheological semi-active suspensions of Chinese patent adopt and divide attitude harmony Human Simulating Intelligent Control, and for the designs simplification of semi-active suspension provides thinking, but its practical application effect is still waiting check.Therefore, be necessary to give full play to the potentiality of passive suspension.Chinese patent 200810123830.8 discloses a kind of vehicle suspension of using inertia energy accumulator, the one group of structure that inertia energy accumulator is in parallel with damper of on the basis of the passive suspension of traditional spring shown in Figure 1 damper in parallel, connecting again, make vehicle in theory under the prerequisite that the moving stroke of tire live load and suspension does not increase, significantly improved travelling comfort.But, this invention has increased the height of suspension on the one hand, because inertia energy accumulator and damper do not adopt supporting members such as spring, and its initial position will be in the end position of stroke under the action of gravity of vehicle frame, therefore the practicality of this invention remains to be discussed on the other hand.
Summary of the invention
The objective of the invention is deficiency at existing vehicle suspension, fully excavate the potentiality of traditional passive suspension, adopt simple structure to cushion and absorb each frequency range vibration of road surface and car body, effectively promote safety, traveling comfort and the Combination property such as handling of vehicle.
The present invention mainly is made of spring 1, damper 2,3 parallel connections of movement conversion spiral fly wheel, as shown in Figure 2.Wherein the movement conversion spiral fly wheel comprises ball-screw 4, bearing 5, flywheel 6 and housing 7.Flywheel and ball-screw are cover helicoidal gears, realize that by bearing and housing straight line/conversion rotatablely moves.When the friction of the sole mass of ignoring ball-screw 4, bearing 5 and housing 7 and motion process, because quality is the effect of the flywheel 6 of r for the m radius, be under the effect of the relative exciting force F between ball-screw 4 and the housing 7 of p in pitch, have relative displacement acceleration/accel a between ball-screw and the housing, its pass is: F=(2 π r/p)
2Ma.The radius r of flywheel is greater than the pitch p of ball-screw among the present invention, then (2 π r/p)
2＞1.Prior art is known to the conventional inertia mass, and the pass between its quality m, power F and the acceleration/accel a is: F=ma.Therefore contrast the movement conversion spiral fly wheel as can be known, under the effect of vibrational excitation power, the movement conversion spiral fly wheel can obtain " virtual mass " of having amplified than flywheel self actual mass.
The object of the present invention is achieved like this: adopt spring, damper and movement conversion spiral fly wheel formation in parallel vehicle suspension.The movement conversion spiral fly wheel has the effect that exoergic deadens low-frequency vibration of holding, spring has the effect that exoergic deadens high-frequency vibration of holding, damper has the effect that consumes vibrational energy, so three's parallel-connection structure can cushion and absorb each frequency range vibration of road surface and car body.The parameters such as ratio of mass of flywheel, flywheel radius and the ball-screw pitch of the rigidity by the preferred element spring, the damping of damper, movement conversion spiral fly wheel can effectively promote safety, traveling comfort and the Combination property such as handling of vehicle.
Compare with the prior art of vehicle suspension, the present invention has following characteristics:
1, element movement conversion spiral fly wheel can be realized the effect of inertia of bigger traditional quality piece with less flywheel actual mass among the present invention, and can utilize the work that is used for of vibrational excitation power self, realize the two ends connection mode in parallel that the traditional quality piece can't be realized with spring and damper.
2, element movement conversion spiral fly wheel has the effect that exoergic deadens low-frequency vibration of holding among the present invention, spring has the effect that exoergic deadens high-frequency vibration of holding, damper has the effect that consumes vibrational energy, so three's parallel-connection structure can cushion and absorb each frequency range vibration of road surface and car body.
3, the present invention with initiatively compare greatly simply with the structure of semi-active suspension, do not adopt cascaded structure to increase the height of suspension, only increase the Combination property that simple parallel-connection structure just can realize effectively promoting vehicle than the passive suspension of tradition.
Description of drawings
Fig. 1 is traditional passive suspension frame structure scheme drawing;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is for using the 1/4 car body model scheme drawing of this suspension.
Among Fig. 1, Fig. 2, Fig. 3,1-spring, 2-damper, 3-movement conversion spiral fly wheel, 4-ball-screw, 5-bearing, 6-flywheel, 7-housing, 8-vehicle body equivalence sprung weight, 9-have suspension, 10-wheel equivalence unsprung weight, 11-tire equivalent spring, the 12-road surface of movement conversion spiral fly wheel.
The specific embodiment
Below in conjunction with drawings and Examples, further the present invention will be described.
Embodiment as shown in Figure 3,1/4 car body model is by vehicle body equivalence sprung weight 8, the suspension 9 with movement conversion spiral fly wheel, wheel equivalence unsprung weight 10, tire equivalent spring 11 and road surface 12.As can be seen from the figure, the shock and vibration that cause by Uneven road or body oscillating, HFS and low frequency part are decomposed by the spring of suspension and movement conversion spiral fly wheel respectively and are cushioned, and damped device absorbs and decay, thereby can effectively promote safety, traveling comfort and the Combination property such as handling of vehicle.
Integrated performance index by comparison diagram 1, suspension shown in Figure 2 can illustrate preceence of the present invention.Suspension can move stroke mean effective value J with suspension to the Safety Effect of vehicle
1Quantitative evaluation can be used bouncing of automobile body acceleration root-mean-square value J to the influence of the travelling comfort of vehicle
2Quantitative evaluation can be with taking turns movement of the foetus displacement mean effective value J to the handling influence of vehicle
3Quantitative evaluation.And the Combination property of vehicle can with these three indexs respectively with coefficient of weight q
1, q
2, q
3Product J quantitative evaluation.
Two kinds of suspension optimal parameter design of table 1 result contrast
At certain typical road excitation condition and given coefficient of weight q
1=1000, q
2=1, q
3Under=50 the condition, when spring 1 parameter is respectively 50,60,70,80,90, during 100kN, the component parameters to traditional suspension and embodiment is optimized respectively, selects the optimum component parameters of two kinds of suspensions: spring 1 rigidity, damper 2 dampings and movement conversion spiral fly wheel 3 equivalent inertia, calculate the optimal performance J that it can reach, as shown in table 1.Compare as can be known with the passive suspension of tradition, the Combination property of vehicle with movement conversion spiral fly wheel suspension is minimum to have promoted 4.03%, has the highlyest promoted 8.60%, has on average promoted 6.45%.Therefore, the suspension that the present invention forms with simple structure can be realized safety, traveling comfort to vehicle and the lifting of Combination property such as handling.
Claims (3)
1. vehicle suspension with movement conversion spiral fly wheel, mainly form by movement conversion spiral fly wheel, spring, damper, it is characterized in that the movement conversion spiral fly wheel comprises ball-screw, flywheel, bearing and housing, ball-screw and flywheel form screw-drive mechanism, between two end faces of flywheel and the housing bearing are arranged all.
2. vehicle suspension according to claim 1 is characterized in that the pitch of the radius of flywheel greater than ball-screw.
3. vehicle suspension according to claim 1 is characterized in that movement conversion spiral fly wheel, spring and damper install in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103050A CN101774341A (en) | 2009-01-13 | 2009-01-13 | Vehicle suspension bracket with motion transformation spiral fly wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103050A CN101774341A (en) | 2009-01-13 | 2009-01-13 | Vehicle suspension bracket with motion transformation spiral fly wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101774341A true CN101774341A (en) | 2010-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910103050A Pending CN101774341A (en) | 2009-01-13 | 2009-01-13 | Vehicle suspension bracket with motion transformation spiral fly wheel |
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| CN (1) | CN101774341A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954846A (en) * | 2010-09-14 | 2011-01-26 | 江苏大学 | Lever-type inertial mass energy accumulation hanger bracket |
| CN101954847A (en) * | 2010-09-14 | 2011-01-26 | 江苏大学 | Through type inertial mass energy storage suspension |
| CN101961975A (en) * | 2010-09-14 | 2011-02-02 | 江苏大学 | Inertial mass energy-accumulation type vehicle suspension |
| CN101994776A (en) * | 2010-09-14 | 2011-03-30 | 江苏大学 | Two-free endpoint dynamic vibration absorber |
| WO2013071667A1 (en) * | 2011-11-15 | 2013-05-23 | 江苏大学 | Passive ceiling and floor damping and vibration isolation system |
| CN104214295A (en) * | 2014-08-13 | 2014-12-17 | 济宁中科先进技术研究院有限公司 | Novel inertia element device for automobile suspension frame |
| CN109466257A (en) * | 2018-10-29 | 2019-03-15 | 江苏大学 | A kind of caravan trailer ball-hook attachment device |
| CN109982875A (en) * | 2016-11-17 | 2019-07-05 | 标致雪铁龙汽车股份有限公司 | The suspension apparatus with convertible fluids inertia for vehicle axle |
-
2009
- 2009-01-13 CN CN200910103050A patent/CN101774341A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101954846A (en) * | 2010-09-14 | 2011-01-26 | 江苏大学 | Lever-type inertial mass energy accumulation hanger bracket |
| CN101954847A (en) * | 2010-09-14 | 2011-01-26 | 江苏大学 | Through type inertial mass energy storage suspension |
| CN101961975A (en) * | 2010-09-14 | 2011-02-02 | 江苏大学 | Inertial mass energy-accumulation type vehicle suspension |
| CN101994776A (en) * | 2010-09-14 | 2011-03-30 | 江苏大学 | Two-free endpoint dynamic vibration absorber |
| CN101954847B (en) * | 2010-09-14 | 2012-08-15 | 江苏大学 | Through type inertial mass energy storage suspension |
| CN101994776B (en) * | 2010-09-14 | 2013-07-17 | 江苏大学 | Two-free endpoint dynamic vibration absorber |
| WO2013071667A1 (en) * | 2011-11-15 | 2013-05-23 | 江苏大学 | Passive ceiling and floor damping and vibration isolation system |
| US9074652B2 (en) | 2011-11-15 | 2015-07-07 | Jiangsu University | Passive skyhook and groundhook damping vibration isolation system |
| CN104214295A (en) * | 2014-08-13 | 2014-12-17 | 济宁中科先进技术研究院有限公司 | Novel inertia element device for automobile suspension frame |
| CN109982875A (en) * | 2016-11-17 | 2019-07-05 | 标致雪铁龙汽车股份有限公司 | The suspension apparatus with convertible fluids inertia for vehicle axle |
| CN109466257A (en) * | 2018-10-29 | 2019-03-15 | 江苏大学 | A kind of caravan trailer ball-hook attachment device |
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Open date: 20100714 |