CN102582417A - Speed-reducing type wheel electric drive system of electric vehicle - Google Patents
Speed-reducing type wheel electric drive system of electric vehicle Download PDFInfo
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- CN102582417A CN102582417A CN2012100433009A CN201210043300A CN102582417A CN 102582417 A CN102582417 A CN 102582417A CN 2012100433009 A CN2012100433009 A CN 2012100433009A CN 201210043300 A CN201210043300 A CN 201210043300A CN 102582417 A CN102582417 A CN 102582417A
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Abstract
The invention discloses a speed-reducing type wheel electric drive system of an electric vehicle. A hub is supported on a wheel support shaft on a suspension steering knuckle through a hub bearing; a first-level speed reducing gear pair is in transmission with a second-level speed reducing gear pair; a motor shaft of a wheel drive motor is in pivot joint with a slider of a sliding guide pair; a guide rail of the sliding guide pair is vertically fixed on the suspension steering knuckle; the wheel drive motor can relatively slide on the suspension steering knuckle in the vertical direction; and the slider and the suspension steering knuckle are borne by a dynamic vibration reducing spring and a dynamic vibration reducing damper. According to the invention, through the movable connection design between a drive motor and a speed reducing transmission mechanism, the dead weight of the drive motor is transformed into the mass of a dynamic vibration reducer, and thus the vibration reducing function of the dynamic vibration reducer can be realized without needing additional mass block of the dynamic vibration reducer. Through the invention, the unsprung mass of the wheel electric drive system is effectively reduced, and the dead weight of the drive motor generates an effect of reducing the negative effect of the unsprung mass of the wheel electric drive system.
Description
Technical field
The present invention relates to electric automobile chassis and drive technology field, especially a kind of slowdown type that utilizes the drive motor deadweight to realize the electronlmobil of vibration-damping function is taken turns the limit power drive system.
Background technology
The wheel limit power drive system of electronlmobil is meant that drive motor is arranged in the drive wheel or near the drive wheel, power directly or through speed reduction gearing is delivered to wheel by motor, thus the drive form of powered vehicle.Because wheel limit power drive system has omitted the devices such as power-transfer clutch, universal-joint, transmission shaft and diff of orthodox car, it is compared concentrate motor-driven that special advantages is arranged: succinct, the capable of using space of complete vehicle structure is big; Messenger chain is short, the drive system driving efficiency is higher; Each driving wheel torque is independent controlled, and the chassis system dynamics Controlling is more flexible, convenient etc.
Yet,, generally can have a negative impact to tire ground connection property, ride comfort because wheel limit power drive system is integrated in parts such as motor, speed reduction gearing and drg in the wheel or near the wheel, therefore each drive wheel unsprung weight is greatly increased.In order to alleviate this adverse effect, can adopt the method that installs dynamic shock-absorber additional, adopt a kind of automatically controlled active suspension like Michelin's driving wheel; Also can in wheel, install a sleeve spring damping mass system additional.But the former system cost is higher, and the space is narrow and small in the latter Ze Yin wheel rim, can only adopt the dynamic shock-absorber of less quality, and its damping of vibrations is limited.
Summary of the invention
The applicant is very heavy to above-mentioned existing wheel limit power drive system unsprung weight; Shortcomings such as damping of vibrations is limited; A kind of slowdown type wheel limit power drive system of electronlmobil of compact conformation is provided; Transmission is efficient, can effectively subdue unsprung weight vibration negative effect, helps taking turns the high-speed small-sizeization of limit drive motor.
The technical scheme that the present invention adopted is following:
A kind of slowdown type wheel limit power drive system of electronlmobil, wheel hub is supported on the wheel support axle on the suspension steering swivel through hub bearing; The one-level speed reducing gear pair is made up of one-level driving gear that is fixed on motor shaft and the one-level driven gear that is fixed on tween drive shaft, connects through one-level speed reducing gear pair center rod therebetween; The double-reduction gear pair is made up of secondary driving gear that is fixed on tween drive shaft and the secondary driven gear that is fixed on the wheel support axle, connects through double-reduction gear sub-center connecting rod therebetween; The motor shaft of wheel limit drive motor is articulated on the secondary slide block of slide-and-guide; The vertical secondary guide rail of slide-and-guide that is fixed with on the suspension steering swivel; Promptly take turns the limit drive motor can along vertical on the suspension steering swivel slide relative, carry through dynamic damper spring and dynamic damper between slide block and the suspension steering swivel.
Beneficial effect of the present invention is following:
The present invention is converted into the dynamic shock-absorber quality with the drive motor deadweight, thereby need not to install additional in addition the vibration-damping function that the dynamic shock-absorber mass can be realized dynamic shock-absorber through the movable connection design between drive motor and the reduction gearing mechanism.When effectively reducing wheel limit power drive system unsprung weight, also make the drive motor deadweight produce the effect of subduing wheel limit power drive system unsprung weight negative effect like this.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is the birds-eye view of Fig. 1.
Among the figure: 1, wheel limit drive motor; 2, suspension steering swivel; 3, slide-and-guide is secondary; 4, dynamic damper spring; 5, dynamic damper; 6, one-level driving gear; 7, one-level driven gear; 8, secondary driving gear; 9, secondary driven gear; 10, wheel hub; 11, hub bearing; 12, one-level speed reducing gear pair center rod; 13, double-reduction gear sub-center connecting rod; 14, brake wheel; 15, motor shaft; 16, tween drive shaft; 17, wheel support axle.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Like Fig. 1, shown in Figure 2, the one-level speed reducing gear pair is made up of one-level driving gear that is fixed on motor shaft 15 output shafts 6 and the one-level driven gear 7 that is fixed on tween drive shaft 16; The double-reduction gear pair is made up of secondary driving gear that is fixed on tween drive shaft 16 8 and the secondary driven gear 9 that is fixed on wheel hub 10; Wheel hub 10 connects firmly with secondary driven gear 9 coaxial lines, and is supported on the wheel support axle 17 on the suspension steering swivel 2 through hub bearing 11, around the axis rotation of wheel support axle 17.
The two ends of one-level speed reducing gear pair center rod 12 respectively are hinged through a turning pair and motor shaft 15 and tween drive shaft 16, and the turning pair axis respectively with the dead in line of institute's pivotally attached motor shaft 15 and tween drive shaft 16.Each is hinged the two ends of double-reduction gear sub-center connecting rod 13 with a turning pair and tween drive shaft 16 and wheel support axle 17, and the turning pair axis respectively with the dead in line of institute's pivotally attached tween drive shaft 16 and wheel support axle 17; Brake wheel 14 connects firmly with wheel hub 10 mutually.
The motor shaft 15 of wheel limit drive motor 1 is articulated on the slide block of slide-and-guide secondary 3; The vertical guide rail that is fixed with slide-and-guide secondary 3 on the suspension steering swivel 2; Promptly take turns limit drive motor 1 can along vertical on suspension steering swivel 2 slide relative; Between slide block and the suspension steering swivel 2, through dynamic damper spring 4 and dynamically damper 5 carryings.This structure makes the deadweight of wheel limit drive motor 1 no longer constitute the component part of unsprung weight, but is converted into the dynamic shock-absorber quality, so the increase of unsprung weight will greatly reduce.Simultaneously; Through the parameter matching optimal design; Also can constitute the dynamic shock-absorber that constitutes by wheel limit drive motor quality 1, dynamic damper spring 4 and dynamic damper 5, further subdue the vibration negative effect that unsprung weight produces, thereby improve the vertical performance of vehicle; When vehicle ', offset the vibration of jolting and causing, thereby subdued the vibration that passes to main vehicle body more greatly with decay at inside wheel.
During real work, the outputting power of wheel limit drive motor 1, via one-level speed reducing gear pair, double-reduction gear secondary slow down to increase pass to wheel hub 10 after turning round, drive wheels is advanced; Simultaneously; The deadweight quality of wheel limit drive motor 1, via dynamic damper spring 4 and dynamic damper 5, can be with respect to suspension steering swivel 2; Slide relative direction vibration along vertical slide-and-guide secondary 3; Consequent vibratory force acts on suspension steering swivel 2 and wheel, can subdue because the vibration negative effect that unsprung weight produces.
More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.
Claims (1)
1. the slowdown type of an electronlmobil is taken turns the limit power drive system, and wheel hub (10) is supported on the wheel support axle (17) on the suspension steering swivel (2) through hub bearing (11), it is characterized in that:
---one-level speed reducing gear pair is made up of one-level driving gear (6) that is fixed on motor shaft (15) and the one-level driven gear (7) that is fixed on tween drive shaft (16), connects through one-level speed reducing gear pair center rod (12) therebetween;
---double-reduction gear pair is made up of secondary driving gear (8) that is fixed on tween drive shaft (16) and the secondary driven gear (9) that is fixed on wheel support axle (17), connects through double-reduction gear sub-center connecting rod (13) therebetween;
--the motor shaft (15) of-wheel limit drive motor (1) is articulated on the slide block of slide-and-guide pair (3); Suspension steering swivel (2) is gone up the vertical guide rail that is fixed with slide-and-guide pair (3); Promptly take turns limit drive motor (1) and can go up slide relative at suspension steering swivel (2), carry through dynamic damper spring (4) and dynamic damper (5) between slide block and the suspension steering swivel (2) along vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210043300.9A CN102582417B (en) | 2012-02-24 | 2012-02-24 | Speed-reducing type wheel electric drive system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210043300.9A CN102582417B (en) | 2012-02-24 | 2012-02-24 | Speed-reducing type wheel electric drive system of electric vehicle |
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| Publication Number | Publication Date |
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| CN102582417A true CN102582417A (en) | 2012-07-18 |
| CN102582417B CN102582417B (en) | 2014-11-05 |
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| CN201210043300.9A Active CN102582417B (en) | 2012-02-24 | 2012-02-24 | Speed-reducing type wheel electric drive system of electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832271A (en) * | 2014-02-27 | 2014-06-04 | 浙江工业大学之江学院工业研究院 | Independent drive independent steering mechanism of electric vehicle |
| CN108274988A (en) * | 2017-01-06 | 2018-07-13 | 罗伯特·博世有限公司 | Wheel side power drive system with dynamic shock sucking function |
| CN109866605A (en) * | 2017-12-01 | 2019-06-11 | 湖北省专用汽车研究院 | A kind of gear assembly of electric wheel motor suspension |
| CN112477583A (en) * | 2020-12-09 | 2021-03-12 | 吉林大学青岛汽车研究院 | Power assembly system in wheel of combination dynamic vibration absorber |
Citations (5)
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|---|---|---|---|---|
| CN2398140Y (en) * | 1999-11-10 | 2000-09-27 | 林少芬 | Electric hub device |
| WO2007069567A1 (en) * | 2005-12-12 | 2007-06-21 | Kabushiki Kaisha Bridgestone | In-wheel motor system |
| CN101370678A (en) * | 2005-12-12 | 2009-02-18 | 株式会社普利司通 | In-wheel motor system |
| CN102092256A (en) * | 2011-03-07 | 2011-06-15 | 同济大学 | Structure and method for reducing equivalent unsprung weight of wheel-rim electrically-driven system of single trailing arm type suspension |
| CN202480864U (en) * | 2012-02-24 | 2012-10-10 | 无锡永凯达齿轮有限公司 | Decelerating type wheel edge electric drive system of electric automobile |
-
2012
- 2012-02-24 CN CN201210043300.9A patent/CN102582417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398140Y (en) * | 1999-11-10 | 2000-09-27 | 林少芬 | Electric hub device |
| WO2007069567A1 (en) * | 2005-12-12 | 2007-06-21 | Kabushiki Kaisha Bridgestone | In-wheel motor system |
| CN101370678A (en) * | 2005-12-12 | 2009-02-18 | 株式会社普利司通 | In-wheel motor system |
| CN102092256A (en) * | 2011-03-07 | 2011-06-15 | 同济大学 | Structure and method for reducing equivalent unsprung weight of wheel-rim electrically-driven system of single trailing arm type suspension |
| CN202480864U (en) * | 2012-02-24 | 2012-10-10 | 无锡永凯达齿轮有限公司 | Decelerating type wheel edge electric drive system of electric automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832271A (en) * | 2014-02-27 | 2014-06-04 | 浙江工业大学之江学院工业研究院 | Independent drive independent steering mechanism of electric vehicle |
| CN108274988A (en) * | 2017-01-06 | 2018-07-13 | 罗伯特·博世有限公司 | Wheel side power drive system with dynamic shock sucking function |
| CN109866605A (en) * | 2017-12-01 | 2019-06-11 | 湖北省专用汽车研究院 | A kind of gear assembly of electric wheel motor suspension |
| CN112477583A (en) * | 2020-12-09 | 2021-03-12 | 吉林大学青岛汽车研究院 | Power assembly system in wheel of combination dynamic vibration absorber |
| CN112477583B (en) * | 2020-12-09 | 2022-03-29 | 吉林大学青岛汽车研究院 | Power assembly system in wheel of combination dynamic vibration absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102582417B (en) | 2014-11-05 |
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