CN102555720A - Speed-reducing wheel-rim driving system using motor as power vibration absorber - Google Patents
Speed-reducing wheel-rim driving system using motor as power vibration absorber Download PDFInfo
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- CN102555720A CN102555720A CN2012100112440A CN201210011244A CN102555720A CN 102555720 A CN102555720 A CN 102555720A CN 2012100112440 A CN2012100112440 A CN 2012100112440A CN 201210011244 A CN201210011244 A CN 201210011244A CN 102555720 A CN102555720 A CN 102555720A
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Abstract
The invention discloses a speed-reducing wheel-rim driving system using a motor as a power vibration absorber. The power is outputted to a small bevel gear by the output shaft of the motor; the small bevel gear is meshed with a large bevel gear, the power is outputted to a semiaxis by the large bevel gear; the section of the semiaxis, which extends into a wheel hub, is provided with an external spline; and the power is transferred to a wheel rim by the wheel hub; the wheel hub, the wheel rim and a rotating element of a braking system are fixedly connected and rotate together; the output shaft of the motor matches with the small bevel gear to transfer power; and the output shaft of the motor slides along the axis of the small bevel gear. The motor is suspended on the wheel, and the motor mass is transferred into the power vibration absorber mass from the unsprung mass. The speed reducing wheel rim driving system has low manufacturing cost and high transmission efficiency and is beneficial to exerting the advantages of high efficiency and large power density of the high-speed motor.
Description
Technical field
The present invention relates to electric automobile chassis and transmission field, particularly a kind of motor serves as the slowdown type wheel limit drive system of dynamic vibration absorber.
Background technology
At present, its keystone configuration characteristic of wheel limit power drive system that with the electric drive wheel is representative is that drive motor is installed in the drive wheel or near the drive wheel, has advantages such as the messenger chain of driving is short, transmission is efficient, compact conformation.Simultaneously; Wheel limit each driving wheel torque of drive system can independently be controlled, and wheel motor is the message unit of automobile, is again the rapid-action control execution unit; Help realizing being difficult on the orthodox car high performance control function that realizes, thereby improve the rideability under the abominable pavement conditions.
But general wheel limit drive system because of in wheel limit/wheel, having introduced parts such as drive motor, retarder, causes the car load unsprung weight significantly to increase, and directly has influence on wheel ground connection property, vehicle body ride comfort.On wheel, installing dynamic vibration absorber additional is a kind of effective ways that solve the excessive vertical negative effect of vehicle that causes of unsprung weight.But traditional dynamic vibration absorber mode needs the extra mass that on wheel, suspends, and this has taken the space on the one hand, has also increased complete vehicle curb weight, thereby reduces continual mileage.In addition, receive the influence of above-mentioned factor, the dynamic vibration absorber quality that installs additional is unsuitable excessive, thereby the absorbing effect of playing is limited.
Summary of the invention
Technical matters to be solved by this invention is the slowdown type wheel limit drive system that will provide a kind of motor to serve as dynamic vibration absorber, and the present invention is suspended in wheel separately with the motor of big quality, thereby motor quality is transformed for the dynamic vibration absorber quality by unsprung weight.The present invention adopts the slowdown type type of drive, and is secondary for a pair of common dead axle conical gear, has low cost of manufacture, driving efficiency height, and helps bringing into play the advantage that high-speed electric expreess locomotive efficient is high, power density is big.
In order to solve above technical matters; The invention provides the slowdown type wheel limit drive system that a kind of motor serves as dynamic vibration absorber, comprise bump leveller damping element, bump leveller elastic element, the non-rotating element of brake system, brake system rotating element, semiaxis, motor output shaft, bevel pinion, bump leveller pilot bar, guide thimble, deceleration box, bevel gear wheel and bearing; Power exports bevel pinion by motor to through motor output shaft, and the engagement of bevel pinion and bevel gear wheel outputs power to semiaxis by bevel gear wheel, and semiaxis stretches into the wheel hub section and is shaped on male splines, the wheel hub through being shaped on female splines with transmission of power to wheel rim.Said wheel hub is with wheel rim and the brake system rotating element is affixed and rotation.The said motor output shaft transferring power that matches with bevel pinion, motor output shaft is along the axis direction slide relative of bevel pinion.It is secondary that bevel pinion and bevel gear wheel have constituted the conical gear deceleration, plays the effect of retarder.
Motor also plays the dynamic vibration absorber effect except that outputting power.The bump leveller pilot bar is fixed in motor, and slides along the guide thimble central axial direction, and promptly motor can slide along the guide thimble central axial direction.Guide thimble and deceleration box, the non-rotating element of steering swivel system and steering swivel Joint.Bevel pinion is supported on the deceleration box through two bearings, and it is with respect to the drop-gear box physical efficiency and only can do the rotation around self central axis.Guide thimble central axis and motor output shaft central axis parallel, and avoid motor when the guide thimble central axis slides and the interference between motor output shaft and the bevel pinion transmission.Motor is suspended on the deceleration box-steering swivel that is fixed together through bump leveller damping element and bump leveller elastic element; Motor also serves as the effect of dynamic vibration absorber mass except that outputting power; Motor is when the guide thimble central axial direction is slided; In vertical direction motion is arranged; Play vertical dynamic vibration absorber effect, can improve the vertical performance of vehicle through suitable adjustment bump leveller damping element and bump leveller elastic element parameter.
Bevel gear wheel and semiaxis join, and the two can not do relative motion, and bevel gear wheel central axis and semiaxis central axis coincide.Semiaxis is supported on the deceleration box through two bearings, can and only can do rotatablely moving around self axis with respect to deceleration box.Link to each other with spline between semiaxis and the wheel hub, can not do relative motion, only play the effect of transferring power.That is, do not have relative motion between wheel rim, wheel hub, brake system rotating element, semiaxis, the bevel gear wheel, they can and only can do identical the rotatablely moving of cireular frequency with respect to the non-rotating element of steering swivel-deceleration box-brake system around the wheel center axis.
Each that wheel bore is passed to the wheel hub affixed with it to power via wheel rim.Match with the inner ring of hub bearing in the outer ring of wheel hub, the two can not do relative motion.Match with the inner ring of steering swivel in the outer ring of hub bearing, the two can not do relative motion.Wheel be passed to wheel hub each be passed to steering swivel to power via hub bearing.Hub bearing inner ring and outer ring can and only can relatively rotate, so wheel rim, wheel hub, brake system rotating element, semiaxis and bevel gear wheel can and only can relatively rotate between the non-rotating element of the deceleration box-steering swivel that is consolidated in-brake system.
Motor of the present invention serves as the slowdown type wheel limit drive system palpus complete use in the left and right sides of dynamic vibration absorber.
Motor of the present invention serves as the difference of the slowdown type wheel limit drive system of dynamic vibration absorber according to the steering swivel specific constructive form, can mate multiple suspension type.
The brake system that motor of the present invention serves as the slowdown type wheel limit drive system of dynamic vibration absorber adopts plate disc brake, or drum brake mechanism.
Superior effect of the present invention is:
1) motor quality does not belong to unsprung weight, so unsprung weight and orthodox car are suitable, drives the unsprung weight of battery-driven car much smaller than tradition wheel limit;
2) adopt the secondary deceleration transmission of common dead axle conical gear, low cost of manufacture, driving efficiency height, and help bringing into play the advantage that high-speed electric expreess locomotive efficient is high, power density is big;
3) motor of big quality serves as the dynamic vibration absorber quality, through damping and the rigidity that dynamic vibration absorber is suspended in wheel suitably is set, can greatly improve the vertical performance of vehicle;
4) motor of big quality serves as the dynamic vibration absorber quality, does not need extra introducing bump leveller mass, thereby does not increase the curb mass of car load;
5) different according to the steering swivel specific constructive form, can mate multiple suspension;
6) wheel flutter and non-wheel flutter all are suitable for;
7) motor, retarder are positioned at the wheel limit, do not take the vehicle body space.
Description of drawings
Fig. 1 is that tradition wheel limit drives electronlmobil 1/4 vehicle two degrees of freedom model of vibration figure;
Fig. 2 installs 1/4 vehicle three degree of freedom model of vibration figure of bump leveller additional for the present invention;
Fig. 3 does not comprise the structural representation of suspension for the present invention;
Label declaration among the figure
The 1-motor; 2-bump leveller damping element;
3-bump leveller elastic element; The 4-wheel rim;
The non-rotating element of 5-brake system; 6-brake system rotating element;
The 7-hub bearing; The 8-wheel hub;
The 9-semiaxis; The 10-steering swivel;
The 11-motor output shaft; The 12-bearing;
The 13-bevel pinion; 14-bump leveller pilot bar;
The 15-guide thimble; The 16-deceleration box;
The 17-bearing; The 18-bearing;
The 19-bearing; The 20-bevel gear wheel.
The specific embodiment
See also shown in the accompanying drawing, the present invention is done further description.
Fig. 1 is that tradition wheel limit drives electronlmobil 1/4 vehicle two degrees of freedom model of vibration figure, and motor 1 quality m3 is a unsprung weight.
Fig. 2 is the 1/4 vehicle three degree of freedom model of vibration figure that installs bump leveller additional; Said motor serves as the slowdown type wheel limit drive system of dynamic vibration absorber; Wherein m2 is 1/4 body quality, and m1 is a unsprung weight, mainly comprises quality such as the non-rotating element of wheel, wheel rim 4, brake system rotating element 6, brake system 5, semiaxis 9, steering swivel 10, the small conical gear 13 that is shaped on female splines, large conical gear 20, deceleration box 16; M3 is the dynamic vibration absorber quality; Promptly serve as,, greatly improve the vertical performance of vehicle through dynamic vibration absorber damping element damping coefficient C3 and dynamic vibration absorber elastic element rigidity k3 suitably are set by motor 1 quality.
As shown in Figure 3; The invention provides the slowdown type wheel limit drive system that a kind of motor serves as dynamic vibration absorber, comprise the non-rotating element of motor 1, bump leveller damping element 2, bump leveller elastic element 3, wheel rim 4, brake system 5, brake system rotating element 6, hub bearing 7, wheel hub 8, semiaxis 9, steering swivel 10, the motor output shaft 11 that is shaped on male splines, bearing 12, the bevel pinion 13 that is shaped on female splines, bump leveller pilot bar 14, guide thimble 15, deceleration box 16, bearing 17, bearing 18, bearing 19 and bevel gear wheel 20 and form.If said brake system rotating element 6 is a brake disc, then the non-rotating element 5 of brake system is a brake clamp; If said brake system rotating element 6 is a brake wheel, then the non-rotating element 5 of brake system is a back-plate.
Power exports the bevel pinion 13 that is shaped on female splines to by motor 1 through the motor output shaft 11 that is shaped on male splines; Be shaped on the bevel pinion 13 and bevel gear wheel 20 engagements of female splines; Output power to semiaxis 9 by bevel gear wheel 20; Semiaxis 9 stretches into the wheel hub section and is shaped on male splines, and the wheel hub 8 through being shaped on female splines is with transmission of power to wheel rim 4.Wheel hub 8 is with wheel rim 4 and the 6 affixed and rotations of brake system rotating element.The motor output shaft 11 that is shaped on male splines matches with the bevel pinion that is shaped on female splines 13, in order to transferring power, and be shaped on the motor output shaft 11 of male splines can be along the axis direction slide relative of the bevel pinion that is shaped on female splines 13.The bevel pinion 13 that is shaped on female splines has constituted conical gear deceleration pair with bevel gear wheel 20, plays the effect of retarder.
Motor 1 also plays the dynamic vibration absorber effect except that outputting power.Bump leveller pilot bar 14 is fixed in motor 1, and only can slide along guide thimble 15 central axial direction, and promptly motor 1 only can slide along guide thimble 15 central axial direction.Guide thimble 15 and deceleration box 16, and steering swivel 10 Joints.The bevel pinion 13 that is shaped on female splines is supported on the deceleration box 16 through two bearings, and it can and only can do the rotation around self central axis with respect to deceleration box 16.Guide thimble 15 central axis must parallel with the motor output shaft that is shaped on male splines 11 axis, to avoid motor 1 when guide thimble 15 central axis slide and be shaped on the motor output shaft 11 of male splines and be shaped on the interference between bevel pinion 13 transmissions of female splines.Motor 1 is equipped with bump leveller damping element 2 and bump leveller elastic element 3 between the deceleration box 16-steering swivel 10 that is fixed in.So motor 1 has motion when guide thimble 15 axis directions slide in vertical direction, plays vertical dynamic vibration absorber effect.
Each that wheel bore is passed to the wheel hub affixed with it 8 to power via wheel rim 4.Matching with the inner ring of hub bearing 7 in the outer ring of wheel hub 8, can not do relative motion.Matching with the inner ring of steering swivel 10 in the outer ring of hub bearing 7, can not do relative motion.Wheel be passed to wheel hub 8 each be passed to steering swivel 10 to power via hub bearing 7.Hub bearing 7 inner rings and outer ring only can relatively rotate, so wheel rim 4, wheel hub 8, brake system rotating element 6, semiaxis 9 and bevel gear wheel 20 only can relatively rotate between the deceleration box 16-steering swivel 10 that is consolidated in.
Motor of the present invention serves as the slowdown type wheel limit drive system palpus complete use in the left and right sides of dynamic vibration absorber.
Motor of the present invention serves as the difference of the slowdown type wheel limit drive system of dynamic vibration absorber according to steering swivel 10 specific constructive form, can mate multiple suspension type.
The slowdown type wheel limit drive system brake system that motor of the present invention serves as dynamic vibration absorber adopts plate disc brake, or drum brake mechanism.
Claims (4)
1. the slowdown type wheel limit drive system that motor serves as dynamic vibration absorber comprises bump leveller damping element, bump leveller elastic element, the non-rotating element of brake system, brake system rotating element, semiaxis, motor output shaft, bevel pinion, bump leveller pilot bar, guide thimble, deceleration box, bevel gear wheel and bearing; It is characterized in that: power exports bevel pinion by motor to through motor output shaft; Bevel pinion and bevel gear wheel engagement; Output power to semiaxis by bevel gear wheel, semiaxis stretches into the wheel hub section and is shaped on male splines, the wheel hub through being shaped on female splines with transmission of power to wheel rim; Motor is suspended on the deceleration box-steering swivel that is fixed together through bump leveller damping element and bump leveller elastic element; Motor also serves as the effect of dynamic vibration absorber mass except that outputting power, improve the vertical performance of vehicle through suitable adjustment bump leveller damping element and bump leveller elastic element parameter.
2. motor according to claim 1 serves as the slowdown type wheel limit drive system of dynamic vibration absorber, it is characterized in that: the said motor output shaft transferring power that matches with bevel pinion, and motor output shaft is along the axis direction slide relative of bevel pinion; The bump leveller pilot bar is fixed in motor, and slides along the guide thimble central axial direction, and the guide thimble central axis is parallel to the motor output shaft central axis.
3. motor according to claim 1 serves as the slowdown type wheel limit drive system of dynamic vibration absorber, and it is characterized in that: said bevel pinion is supported on the deceleration box through two bearings, and it does the rotation around self central axis with respect to deceleration box.
4. motor according to claim 1 serves as the slowdown type wheel limit drive system of dynamic vibration absorber, it is characterized in that: the brake system that motor serves as the slowdown type wheel limit drive system of dynamic vibration absorber adopts plate disc brake, or drum brake mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100112440A CN102555720A (en) | 2012-01-16 | 2012-01-16 | Speed-reducing wheel-rim driving system using motor as power vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100112440A CN102555720A (en) | 2012-01-16 | 2012-01-16 | Speed-reducing wheel-rim driving system using motor as power vibration absorber |
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| CN102555720A true CN102555720A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100112440A Pending CN102555720A (en) | 2012-01-16 | 2012-01-16 | Speed-reducing wheel-rim driving system using motor as power vibration absorber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926660A (en) * | 2017-03-06 | 2017-07-07 | 江苏大学 | A kind of electromagnetic suspension system and its control method based on wheel rim driven motor vehicle |
| CN112977609A (en) * | 2021-04-19 | 2021-06-18 | 北京理工大学 | Integrated power system with steering function, power assembly and vehicle |
Citations (5)
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| CN1684851A (en) * | 2002-08-29 | 2005-10-19 | 株式会社普利司通 | In-wheel motor system |
| JP2007191027A (en) * | 2006-01-19 | 2007-08-02 | Bridgestone Corp | In-wheel motor system |
| JP2007191126A (en) * | 2006-01-23 | 2007-08-02 | Bridgestone Corp | In-wheel motor system |
| CN101985278A (en) * | 2010-11-05 | 2011-03-16 | 同济大学 | Reduction type wheel electric drive and vertical jitter type suspension system of electric vehicle |
| CN102139638A (en) * | 2011-03-07 | 2011-08-03 | 同济大学 | Structure for reducing equivalent unsprung mass of single cross arm suspension wheel-side electric driving system and method |
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2012
- 2012-01-16 CN CN2012100112440A patent/CN102555720A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1684851A (en) * | 2002-08-29 | 2005-10-19 | 株式会社普利司通 | In-wheel motor system |
| JP2007191027A (en) * | 2006-01-19 | 2007-08-02 | Bridgestone Corp | In-wheel motor system |
| JP2007191126A (en) * | 2006-01-23 | 2007-08-02 | Bridgestone Corp | In-wheel motor system |
| CN101985278A (en) * | 2010-11-05 | 2011-03-16 | 同济大学 | Reduction type wheel electric drive and vertical jitter type suspension system of electric vehicle |
| CN102139638A (en) * | 2011-03-07 | 2011-08-03 | 同济大学 | Structure for reducing equivalent unsprung mass of single cross arm suspension wheel-side electric driving system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926660A (en) * | 2017-03-06 | 2017-07-07 | 江苏大学 | A kind of electromagnetic suspension system and its control method based on wheel rim driven motor vehicle |
| CN112977609A (en) * | 2021-04-19 | 2021-06-18 | 北京理工大学 | Integrated power system with steering function, power assembly and vehicle |
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Application publication date: 20120711 |