CN103921637A - Inner vibration absorbing device of high-speed electric wheel and electric wheel - Google Patents
Inner vibration absorbing device of high-speed electric wheel and electric wheel Download PDFInfo
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- CN103921637A CN103921637A CN201410177386.3A CN201410177386A CN103921637A CN 103921637 A CN103921637 A CN 103921637A CN 201410177386 A CN201410177386 A CN 201410177386A CN 103921637 A CN103921637 A CN 103921637A
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- wheel
- strut bar
- damping liquid
- damping
- speed electric
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Abstract
The invention discloses an inner vibration absorbing device of a high-speed electric wheel. The inner vibration absorbing device of the high-speed electric wheel comprises a damping vibration absorber and a spring vibration absorber. The damping vibration absorber comprises a damper shell body and a supporting rod, wherein a damping disc is arranged on the supporting rod. The invention further discloses the electric wheel. The electric wheel comprises a wheel shaft and a motor stator, wherein the damper shell body is fixed to the wheel shaft, and a sleeve seat and a guide seat are respectively and fixedly connected with the motor stator. According to the inner vibration absorbing device of the high-speed electric wheel and the electric wheel, a wheel hub motor and a brake are connected to the wheel shaft through the inner vibration absorbing device, acting force and counter-acting force between the wheel shaft and the motor are transmitted through the inner vibration absorbing device, the smoothness and comfort in the process when the motor drives an electric car are largely improved, the work environment of the wheel hub motor is improved, the mass of the wheel hub motor and the brake can also play a role of the damping vibration absorber, and the adverse effect caused by increase of the mass under a spring is eliminated. In addition, the damping vibration absorber and the spring vibration absorber are integrated, so that the inner vibration absorbing device of the high-speed electric wheel and the electric wheel are compact in structure, small in size and light in weight.
Description
Technical field
The present invention relates to a kind of shock attenuation unit, particularly a kind of shock attenuation unit of high-speed hub motor driven systems.
Background technology
Due to the aggravation of environmental pollution and energy shock, electronlmobil has become the important research direction that reduces discharge and save energy technology.Current pure electric automobile drive form mainly contains two kinds: concentrate motor to drive and In-wheel motor driving (comprising retardation gear ejector half and directly driving), the former replace combustion engine with motor power be assigned to each drive wheel by retarder and diff, thereby drive Vehicle Driving Cycle; Latter is that drive motor is arranged in wheel, and this drive form can be simplified driving system greatly, both can save vehicle interior space, can improve transmission efficiency again.Therefore, electric drive wheel drives electronlmobil with its unique advantage, will become an important development direction of elec. vehicle.
Wheel hub motor is installed pattern, and more common way is that motor is connected with wheel rate at present, and for example the outer rotor direct driving wheel hub motor of French TM4 is using motor outer rotor and wheel rim as one; Mitsubishi Lancer car rotor is direct and wheel is fixed.Although such mounting means has been realized the Efficient Conversion of power between motor and wheel, the vibration of wheel is directly delivered to motor, can reduce on the one hand the durability of motor; The introducing of wheel hub motor has produced an important problem on the other hand: the wheel unsprung weight that wheel hub motor increases has had a strong impact on safety and the traveling comfort of vehicle.
In the approach overcoming the above problems at present, mainly contain: adopt light-weight design, improve power of motor density, develop the passive suspension system of a set of applicable wheel rim driven motor vehicle or the special control policy of controlled suspension and in wheel, increase shock attenuation unit.Adopt lightweight means to be subject to the intensity of material own, rigidity and energy storage quantitative limitation; The raising of power of motor density is subject to the restriction of space heat elimination environment in current motor research level and wheel; Although passive type suspension is simple in structure, the restriction that mutually restricted by ride comfort and safety, therefore solves effect very limited; Half active or active suspension, can to the damping of suspension, rigidity or forcer, control as skyhook damping, fuzzy control, adaptive control etc. by various control methods, but relative cost is higher, complex structure, and how no matter adopt, the final method of safety and ride comfort compromise that also can only adopt realizes, and cannot deal with problems at all; Adopt the mode of additional bump leveller, although can reduce well the live load of wheel, improve the ride comfort of car load, but because making economy, dynamic property and the deceleration and stopping performance of car load, the increase of complete vehicle quality is all affected, make the performances such as the biddability of suspension and inherent characteristic also be affected simultaneously, and the own volume of bump leveller and the requirement of working space has also been increased to the difficulty that bump leveller is installed.
Although the dynamic antivibration shock absorption system of BRIDGESTONE company exploitation is at present greatly improved to the vertical performance of vehicle, there is too complicated, the excessive defect of total quality in the structure of its whole electric drive wheel; Therefore the shock attenuation unit that, also there is no at present the key issues such as the poor and wheel hub motor work under bad environment of a kind of ride comfort, traveling comfort that can solve In-wheel motor driving electronlmobil.
Summary of the invention
In view of this, the object of this invention is to provide shock attenuation unit in a kind of High-speed Electric driving wheel wheel, to solve the problems such as the poor and wheel hub motor work under bad environment of ride comfort, the traveling comfort of motor driven electric car.
Shock attenuation unit in High-speed Electric driving wheel wheel of the present invention, comprises damping shock absorber and jounce bumper;
Described damping shock absorber comprise damper housing and be through on damper housing and with the strut bar of damper housing bearing fit, damper housing is stretched out at the two ends of described strut bar, is provided with the dampened disk of squeezed air-damping liquid on described strut bar;
Described jounce bumper comprises receiver and is arranged in the spring of receiver, and one end of described receiver and strut bar is fixedly connected with, and described spring housing is on strut bar, and one end of spring withstands on damper housing, and the other end of spring withstands on receiver.
Further, described damper housing comprises damping liquid cavity and the damping liquid lid being connected with damping liquid cavity detachable, between described damping liquid lid and damping liquid cavity, be provided with static sealing ring, damping liquid cavity and damping liquid lid are passed respectively in described strut bar two ends, and on strut bar, are provided with the dynamic seal ring coordinating with damping liquid cavity and damping liquid lid respectively.
Further, on described damping liquid lid, be provided with the pilot hole with receiver single degree of freedom bearing fit, on the other end of described strut bar, be provided with guide holder, described guide holder and damping liquid cavity single degree of freedom bearing fit.
Further, the cross-sectional plane of described pilot hole is oblate.
The present invention has the electric wheel of shock attenuation unit in High-speed Electric driving wheel wheel, comprise wheel shaft and motor stator, described damper housing is fixed on wheel shaft, described strut bar vertically arrange and strut bar vertical with wheel shaft, described receiver is fixedly connected with motor stator respectively with guide holder.
Further, described electric wheel also comprises drg, and the brake disc of described drg is fixedly connected with rotor, and the brake clamp of described drg is fixedly connected with motor stator.
Beneficial effect of the present invention:
1, shock attenuation unit and electric wheel in High-speed Electric driving wheel wheel of the present invention, it is connected to wheel hub motor and drg on axletree by interior shock attenuation unit, by interior shock attenuation unit, transmits application force and the antagonistic force between wheel shaft and motor.When electric wheel travels on uneven road surface, wheel hub motor is subject to the vibration that wheel transmits and beats, beating of motor passes to receiver and strut bar, and meanwhile spring-compressed plays buffer shock-absorbing effect, and dampened disk squeezed air-damping liquid plays the effect that consumes impact shock energy; And when motor is beated with respect to wheel shaft, interior shock attenuation unit also can play identical buffer shock-absorbing effect; And spring enters recovery during the stage by compressive state, damping shock absorber also can play the effect of vibrational energy between rapid decay wheel shaft and motor; Ride comfort, the traveling comfort of the raising motor driven electric car that therefore in this High-speed Electric driving wheel wheel, shock attenuation unit and electric wheel can be very large, improve wheel hub motor working environment.
2, shock attenuation unit and electric wheel in High-speed Electric driving wheel wheel of the present invention, in it strut bar of shock attenuation unit not only play a part damping shock absorber piston rod, but also play the spring conductor rod of jounce bumper, also play power transmission between wheel and bumper, thereby damping shock absorber and jounce bumper are become one, the structure of shock attenuation unit is compacter, volume is less, is more conducive in wheel mounting arrangements in finite space.
3, shock attenuation unit and electric wheel in High-speed Electric driving wheel wheel of the present invention, its pilot hole and receiver adopt on-circular cross-section to coordinate, can play the guiding role to the motion of strut bar, prevent that in working process, strut bar rotates in shock attenuation unit, and then avoid wheel hub motor to swing around the vertical line of centers of shock attenuation unit, can reduce fault.
4, shock attenuation unit and electric wheel in High-speed Electric driving wheel of the present invention wheel, it makes the damping absorber effect of can having held concurrently of the quality of wheel hub motor and drg, has eliminated the adverse effect that unsprung weight increase brings.
The advantages such as 5, in High-speed Electric driving wheel wheel of the present invention, shock attenuation unit and electric wheel also have simply compactness of integral structure, and volume is little, lightweight.
Accompanying drawing explanation
Fig. 1 is the front view of shock attenuation unit in High-speed Electric driving wheel wheel of the present invention;
Fig. 2 is the front view of electric wheel;
Fig. 3 is the left view of Fig. 2.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in the figure, shock attenuation unit in the present embodiment High-speed Electric driving wheel wheel, comprises damping shock absorber and jounce bumper;
Described damping shock absorber comprise damper housing 1 and be through on damper housing and with the strut bar 2 of damper housing bearing fit, damper housing 1 is stretched out at the two ends of described strut bar 2, is provided with the dampened disk 3 of squeezed air-damping liquid on described strut bar 2;
Described jounce bumper comprises receiver 4 and is arranged in the spring 5 of receiver, described receiver 4 is fixedly connected with one end of strut bar 2, described spring 5 is enclosed within on strut bar, and one end of spring 5 withstands on damper housing 1, and the other end of spring 5 withstands on receiver 4.
In the present embodiment, described damper housing 1 comprises damping liquid cavity 101 and the damping liquid lid 102 being connected with damping liquid cavity detachable, between described damping liquid lid 102 and damping liquid cavity 101, be provided with static sealing ring 6, damping liquid cavity 101 and damping liquid lid 102 are passed respectively in the two ends of described strut bar 2, and on strut bar 2, are provided with the dynamic seal ring 7 coordinating with damping liquid cavity 101 and damping liquid lid 102 respectively.
As the improvement to the present embodiment, on described damping liquid lid 102, be provided with the pilot hole with receiver 4 single degree of freedom bearing fits, on the other end of described strut bar 2, be provided with guide holder 8, described guide holder 8 and damping liquid cavity 101 single degree of freedom bearing fits.In the present embodiment, the cross-sectional plane of described pilot hole is oblate, certainly in concrete enforcement, the cross-sectional plane of pilot hole also can be equilateral polygon etc. other is non-circular, adopt pilot hole and receiver 4 to adopt on-circular cross-section to coordinate, can play the guiding role to the motion of strut bar 2, prevent that in working process, strut bar 2 rotates in shock attenuation unit, and then avoid wheel hub motor to swing around the vertical line of centers of shock attenuation unit, can reduce fault.
The present embodiment has the electric wheel of shock attenuation unit in High-speed Electric driving wheel wheel, comprise wheel shaft 9 and motor stator 10, described damper housing 1 is fixed on wheel shaft 10, described strut bar 2 vertically arrange and strut bar 2 vertical with wheel shaft 9, described receiver 4 is fixedly connected with motor stator 10 respectively with guide holder 8.
The present embodiment electric wheel, also comprises drg, and the brake disc 11 of described drg is fixedly connected with rotor 12, and the brake clamp 13 of described drg is fixedly connected with motor stator.
Shock attenuation unit and electric wheel in High-speed Electric driving wheel wheel of the present invention, it is connected to wheel hub motor on wheel shaft 10 by interior shock attenuation unit, by interior shock attenuation unit, transmits application force and the antagonistic force between wheel shaft 10 and motor.
When electric wheel travels on uneven road surface, wheel hub motor is subject to the vibration that wheel transmits and beats, beating of motor passes to receiver 4 and strut bar 2, and buffer shock-absorbing effect is played in meanwhile spring 5 compressions, and dampened disk 3 is played and consumed impact shock energy by squeezed air-damping liquid; And when motor is beated with respect to wheel shaft 10, interior shock attenuation unit also can play identical buffer shock-absorbing effect; And spring 5 enters recovery during the stage by compressive state, damping shock absorber also can play the effect of vibrational energy between rapid decay wheel shaft 10 and motor; Ride comfort, the traveling comfort of the raising motor driven electric car that therefore in this High-speed Electric driving wheel wheel, shock attenuation unit and electric wheel can be very large, improve wheel hub motor working environment.
Meanwhile, due to the directional tagging of receiver 4 and guide holder 8, can guarantee that wheel hub motor can only be done perpendicular to the vertical of wheel shaft 10 to beat; And it is the damping absorber effect of can having held concurrently of the quality of wheel hub motor and drg, and having eliminated unsprung weight (quality below automobile suspension system damper unit) increases the adverse effect of bringing; The advantages such as in the present embodiment High-speed Electric driving wheel wheel, shock attenuation unit and electric wheel also have simply compactness of integral structure certainly, and volume is little, lightweight.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (6)
1. a shock attenuation unit in High-speed Electric driving wheel wheel, is characterized in that: comprise damping shock absorber and jounce bumper;
Described damping shock absorber comprise damper housing and be through on damper housing and with the strut bar of damper housing bearing fit, damper housing is stretched out at the two ends of described strut bar, is provided with the dampened disk of squeezed air-damping liquid on described strut bar;
Described jounce bumper comprises receiver and is arranged in the spring of receiver, and one end of described receiver and strut bar is fixedly connected with, and described spring housing is on strut bar, and one end of spring withstands on damper housing, and the other end of spring withstands on receiver.
2. High-speed Electric driving wheel according to claim 1 is taken turns interior shock attenuation unit, it is characterized in that: described damper housing comprises damping liquid cavity and the damping liquid lid being connected with damping liquid cavity detachable, between described damping liquid lid and damping liquid cavity, be provided with static sealing ring, damping liquid cavity and damping liquid lid are passed respectively in described strut bar two ends, and on strut bar, are provided with the dynamic seal ring coordinating with damping liquid cavity and damping liquid lid respectively.
3. High-speed Electric driving wheel according to claim 1 is taken turns interior shock attenuation unit, it is characterized in that: on described damping liquid lid, be provided with the pilot hole with receiver single degree of freedom bearing fit, on the other end of described strut bar, be provided with guide holder, described guide holder and damping liquid cavity single degree of freedom bearing fit.
4. shock attenuation unit in High-speed Electric driving wheel wheel according to claim 3, is characterized in that: the cross-sectional plane of described pilot hole is for oblate.
5. one kind has in claim 1-4 the electric wheel of shock attenuation unit in arbitrary described High-speed Electric driving wheel wheel, it is characterized in that: comprise wheel shaft and motor stator, described damper housing is fixed on wheel shaft, described strut bar vertically arrange and strut bar vertical with wheel shaft, described receiver is fixedly connected with motor stator respectively with guide holder.
6. electric wheel according to claim 5, is characterized in that: also comprise drg, the brake disc of described drg is fixedly connected with rotor, and the brake clamp of described drg is fixedly connected with motor stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177386.3A CN103921637B (en) | 2014-04-29 | 2014-04-29 | Vibration absorber and electric wheel in High-speed Electric driving wheel wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177386.3A CN103921637B (en) | 2014-04-29 | 2014-04-29 | Vibration absorber and electric wheel in High-speed Electric driving wheel wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103921637A true CN103921637A (en) | 2014-07-16 |
| CN103921637B CN103921637B (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410177386.3A Expired - Fee Related CN103921637B (en) | 2014-04-29 | 2014-04-29 | Vibration absorber and electric wheel in High-speed Electric driving wheel wheel |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228549A (en) * | 2014-10-09 | 2014-12-24 | 上海交通大学 | Hub motor driving electric wheel with electromagnetism damping device |
| CN104385868A (en) * | 2014-11-19 | 2015-03-04 | 冯胜 | Independent suspension system of automobile |
| CN104553782A (en) * | 2015-01-29 | 2015-04-29 | 重庆大学 | Linear motor type damper in drive wheel |
| CN104723818A (en) * | 2015-01-29 | 2015-06-24 | 重庆大学 | Linear motor shock absorber used for automobile in-wheel active suspension |
| CN104827886A (en) * | 2015-05-29 | 2015-08-12 | 三峡大学 | Novel intelligent vibration reduction electric wheel |
| CN104842733A (en) * | 2015-05-15 | 2015-08-19 | 中国科学院深圳先进技术研究院 | Electric vehicle suspension system based on hub direct drive motor |
| CN107444007A (en) * | 2017-08-18 | 2017-12-08 | 华中科技大学 | A kind of electric wheel and vehicle with built-in suspension |
| CN107848351A (en) * | 2015-07-30 | 2018-03-27 | 本田技研工业株式会社 | Vehicle |
| CN109720160A (en) * | 2019-01-04 | 2019-05-07 | 青岛科技大学 | A kind of novel hub driving electric car suspension system |
| CN111301149A (en) * | 2020-03-04 | 2020-06-19 | 清华大学 | Vibration-absorbing electric wheel |
| CN112081867A (en) * | 2020-08-27 | 2020-12-15 | 南京航空航天大学 | Explosion-proof electric wheel damping device |
| CN115257680A (en) * | 2022-09-05 | 2022-11-01 | 柏瑞科(上海)轨道交通科技有限公司 | Vibration reduction type electromechanical braking unit suitable for urban rail vehicle |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104228549B (en) * | 2014-10-09 | 2016-08-17 | 上海交通大学 | In-wheel motor driving Electric Motor Wheel with electromagnetic vibration control device |
| CN104228549A (en) * | 2014-10-09 | 2014-12-24 | 上海交通大学 | Hub motor driving electric wheel with electromagnetism damping device |
| CN104385868A (en) * | 2014-11-19 | 2015-03-04 | 冯胜 | Independent suspension system of automobile |
| CN104553782A (en) * | 2015-01-29 | 2015-04-29 | 重庆大学 | Linear motor type damper in drive wheel |
| CN104723818A (en) * | 2015-01-29 | 2015-06-24 | 重庆大学 | Linear motor shock absorber used for automobile in-wheel active suspension |
| CN104842733A (en) * | 2015-05-15 | 2015-08-19 | 中国科学院深圳先进技术研究院 | Electric vehicle suspension system based on hub direct drive motor |
| CN104842733B (en) * | 2015-05-15 | 2017-04-05 | 中国科学院深圳先进技术研究院 | A kind of electric automobile suspension system based on hub direct-drive motor |
| CN104827886A (en) * | 2015-05-29 | 2015-08-12 | 三峡大学 | Novel intelligent vibration reduction electric wheel |
| CN107848351A (en) * | 2015-07-30 | 2018-03-27 | 本田技研工业株式会社 | Vehicle |
| CN107444007A (en) * | 2017-08-18 | 2017-12-08 | 华中科技大学 | A kind of electric wheel and vehicle with built-in suspension |
| CN107444007B (en) * | 2017-08-18 | 2018-06-26 | 华中科技大学 | A kind of electric wheel and vehicle with built-in suspension |
| CN109720160A (en) * | 2019-01-04 | 2019-05-07 | 青岛科技大学 | A kind of novel hub driving electric car suspension system |
| CN111301149A (en) * | 2020-03-04 | 2020-06-19 | 清华大学 | Vibration-absorbing electric wheel |
| CN112081867A (en) * | 2020-08-27 | 2020-12-15 | 南京航空航天大学 | Explosion-proof electric wheel damping device |
| CN112081867B (en) * | 2020-08-27 | 2022-01-18 | 南京航空航天大学 | Explosion-proof electric wheel damping device |
| CN115257680A (en) * | 2022-09-05 | 2022-11-01 | 柏瑞科(上海)轨道交通科技有限公司 | Vibration reduction type electromechanical braking unit suitable for urban rail vehicle |
| CN115257680B (en) * | 2022-09-05 | 2024-04-16 | 马天和 | Damping type electromechanical braking unit suitable for urban rail vehicle |
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