CN203766513U - Single trailing arm suspension synchronous belt deceleration type electric wheel drive system with tension device - Google Patents
Single trailing arm suspension synchronous belt deceleration type electric wheel drive system with tension device Download PDFInfo
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- CN203766513U CN203766513U CN201320726946.7U CN201320726946U CN203766513U CN 203766513 U CN203766513 U CN 203766513U CN 201320726946 U CN201320726946 U CN 201320726946U CN 203766513 U CN203766513 U CN 203766513U
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- wheel
- trailing arm
- synchronous belt
- axle
- motor
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Abstract
The utility model discloses a single trailing arm suspension synchronous belt deceleration type electric wheel drive system with a tension device. A motor, a driving synchronous belt wheel and shaft, a small bearing and a small bearing support are assembled to form an integrated driving assembly to be fixed to a vehicle frame. Wheels bounce up and down under the excitation action of a road, a driven synchronous belt wheel will swing around an elastic rubber hinge axis along with a single trailing arm, at the moment, the center distance between the driven synchronous belt wheel and the driving synchronous belt wheel and shaft will be changed, and a tension wheel device is added, so that the tension state of a synchronous belt is always kept when the driven synchronous belt wheel bounces along with the vehicle wheels, and stable transfer of power is ensured. The synchronous belt toothed belt is selected for transferring power, so that the center distance is changeable, lubrication sealing is not needed, and road impact is relieved. The middle of the trailing arm B is provided with a protruding arc, so that the trailing arm B is kept away from a motor when swinging. Unsprung mass is effectively reduced, and vehicle comfort and wheel grounding performance are improved.
Description
Technical field
The utility model belongs to electric automobile chassis and transmission field, is specifically related to the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system of tightening device.
Background technology
Along with the continuous rise of electronlmobil, there is the drive form of multiple battery-driven car.The size of automobile unsprung weight directly has influence on ride of vehicle and wheel ground connection property.At present, the wheel limit power drive system that the electric drive wheel of take is representative because its drive system and complete vehicle structure are succinct, can utilize that space is large, driving efficiency is high, each drive wheel torque can independently be controlled, and is conducive to improve the rideability under severe pavement conditions and becomes study hotspot.But because motor is installed in drive wheel, automobile unsprung weight is larger, be unfavorable for automobile ride and wheel ground connection property.
For these problems, main research direction has both at home and abroad at present: the highly integrated research of electric drive wheel electromechanical integration, the exploitation of high power density motor and the innovation of configuration aspects etc.With regard to configuration aspects, patent of invention 201110053092.6 has proposed a kind of simple pendulum arm suspension fork wheel edge power drive system equivalence nonspring carried mass structure and method of reducing, drive and saved constant-velocity universal joint and semiaxis makes structure compacter with the centralized motor of tradition, can effectively reduce the equivalent nonspring carried mass that the parts such as motor cause, can effectively reduce the equivalent nonspring carried mass that the parts such as motor cause, but it still keeps away the unavoidably part using motor as equivalent nonspring carried mass.Synchronous Belt Drives has and operates steadily, noiseless, and the advantage that transmitting ratio is constant, can consider for taking turns the driving device of limit power drive system.
Summary of the invention
The utility model considers unsprung weight, slows down to increase and turn round and integrated Integrated design, proposes
The single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system that has tightening device.
The technical solution adopted in the utility model is:
There is the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system of tightening device to comprise vehicle frame, elastic caoutchouc hinge, A trailing arm, little bearing brackett, little bearing, active synchronization belt wheel and axle, motor, B trailing arm, synchronous cog belt, driven synchronous pulley, large bearing, wheel rim, axle tube, hub bearing, wheel hub, axle drive shaft, tensioner apparatus.Wherein, motor active synchronization wheel, little bearing, little bearing brackett are assembled into integrated, and driven unit is fixed on vehicle frame, becomes a unsprung weight part, active synchronization belt wheel and axle are installed and are supported on little bearing brackett by bearing small in ends, and little bearing brackett and motor are connected; The large bearing of flower wheel by two ends supports respectively and is arranged on A trailing arm and B trailing arm; Driven synchronous pulley rotates together with connecting also by flat key and axle drive shaft; Axle drive shaft and wheel hub adopt spline joint, and wheel hub is supported in the axle tube being connected with A trailing arm by hub bearing; Wheel hub is bolted transmission of power is arrived to wheel rim, realizes power output.In other words, motor, active synchronization belt wheel and axle, active synchronization belt wheel and active synchronization belt shaft are made of one, and become active synchronization belt wheel and axle, and active synchronization belt wheel and axle are connected with motor output shaft male splines by active synchronization belt shaft female splines.Little bearing, little bearing brackett are assembled into integrated driven unit and are fixed on vehicle frame, become a part for spring carried mass, thereby have reduced to a great extent nonspring carried mass.Active synchronization belt wheel and axle are installed and are supported in little bearing brackett by little bearing, and are connected so that little bearing inner ring is transferred outer ring and do not turned by two ends sleeve.Little bearing brackett is connected by bolt and motor.Single longitudenal arm consists of A trailing arm and B trailing arm two parts, wherein A trailing arm is connected with axle tube near wheel rim one end and by bolt, axle drive shaft is supported in A trailing arm by large bearing, B trailing arm is installed on driven synchronous pulley outside, axle drive shaft also logical large bearing is supported in B trailing arm, and driven synchronous pulley two ends are connected so that large bearing inner ring is transferred outer ring and do not turn with large bearing by sleeve.It is hinged with vehicle frame that described A trailing arm and B trailing arm all pass through described elastic caoutchouc hinge.There is protruding radian at the middle part of B trailing arm, avoids electrical generator while making its main swing.Driven synchronous pulley and single longitudenal arm are assembled into integral structure.Motor arrangement, in vehicle frame, has installed tensioner apparatus additional between active synchronization belt wheel and axle and driven synchronous pulley synchronous cog belt has been realized to tensioning, remains the tensioning state of Timing Belt, to guarantee the stable delivery of power.Driven synchronous pulley is connected with axle drive shaft by flat key.Axle drive shaft is connected with wheel hub by spline, and wheel hub is supported in by hub bearing in the axle tube being connected with A trailing arm, and final wheel hub is bolted transmission of power to wheel rim.
In the utility model, described motor power output axis centre and the position relationship between A trailing arm can calculate so that the width between centers between active synchronization belt wheel and axle and driven synchronous pulley changes minimum by theory.During due to bob under the effect of wheel at random road excitation, driven synchronous pulley also can cut with scissors axis oscillating around elastic caoutchouc with single longitudenal arm, now the width between centers of driven synchronous pulley and active synchronization belt wheel and axle can change, therefore installed tensioner apparatus in the utility model additional, make when driven synchronous pulley is beated with wheel, all the time can keep the tensioning state of synchronous cog belt, guarantee the stable delivery of power, thereby make this organization plan feasible.There is protruding radian at B trailing arm middle part to avoid B trailing arm when swinging with wheel bob and motor is collided.
In the utility model, select the step-down ratio between suitable synchronous pulley can play the effect that the increasing of slowing down is turned round.
The utility model, the brake system of selecting can adopt disc type brake or drum brake.
In the utility model, the Synchronous Belt Drives of selecting has and operates steadily, noiseless, the advantage that transmitting ratio is constant.The efficiency of Synchronous Belt Drives is also higher than gear transmission, and its transmission width between centers is not subject to the restriction of belt wheel size.Synchronous Belt Drives is without being lubricated and sealing, the corresponding reduction of cost.
The utility model has the advantage of: motor arrangement, in vehicle frame, has been reduced to nonspring carried mass to a great extent, improved ride comfort and the wheel ground connection property of automobile.Utilize tensioner apparatus, guarantee the stable delivery of power.Utilize Synchronous Belt Drives, saved lubricated and sealing, improved driving efficiency, have advantages of that width between centers is variable.
Accompanying drawing explanation
Fig. 1 has the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system structural representation of tightening device.
Fig. 2 takes turns limit electric drive single longitudenal arm associated component lateral plan.
The specific embodiment
Below in conjunction with accompanying drawing 1,2 pairs of the utility model of accompanying drawing, be further described.
The single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system that has tightening device described in the utility model, comprise: vehicle frame 1, elastic caoutchouc hinge 2, A trailing arm 3, little bearing brackett 4, little bearing 5, active synchronization belt wheel and axle 6, motor 7, B trailing arm 8, synchronous cog belt 9, driven synchronous pulley 10, large bearing 11, wheel rim 12, axle tube 13, hub bearing 14, wheel hub 15, axle drive shaft 16, tensioner apparatus 17.
In Fig. 1, motor 7 as propulsion source by transmission of power to active synchronization belt wheel and axle 6, motor 7, active synchronization belt wheel and axle 6, little bearing 5, little bearing brackett 4 are assembled into integral structure and are fixed on vehicle frame 1, become a part for spring carried mass, thereby reduced to a great extent nonspring carried mass.Active synchronization belt wheel and active synchronization belt shaft are made of one as active synchronization belt wheel and axle 6, and active synchronization belt wheel and axle 6 are connected with motor output shaft male splines by active synchronization belt shaft female splines, realize the output of power.Active synchronization belt wheel and axle 6 are installed and are supported in little bearing brackett 4 by little bearing 5, and are connected so that little bearing 5 inner rings are transferred outer ring and do not turned by two ends sleeve (not marking in figure).Little bearing brackett 4 is connected by bolt and motor 7.Single longitudenal arm consists of A trailing arm 3 and B trailing arm 8 two parts and intermediate portion is all structural I-beam, wherein A trailing arm 3 is connected with axle tube 13 near wheel rim 12 one end and by bolt, axle drive shaft 16 is supported in A trailing arm 3 by large bearing 11, and driven synchronous pulley 10 two ends are connected so that large bearing 11 inner rings are transferred outer ring and do not turn with large bearing 11 by sleeve (not marking in figure).B trailing arm 8 is installed on driven synchronous pulley 10 away from wheel one side, and axle drive shaft 16 other ends are supported in B trailing arm 8 by logical large bearing 11.It is hinged with vehicle frame 1 that described A trailing arm 3 and B trailing arm 8 all pass through described elastic caoutchouc hinge 2.Driven synchronous pulley 10 is assembled into integral structure with single longitudenal arm (comprising A trailing arm 3 and B trailing arm 8).Active synchronization belt wheel and axle 6 are connected with driven synchronous pulley 10 transmission that realizes power by synchronous cog belt 9.Synchronous cog belt 9 outer ends have 17 pairs of synchronous cog belts of tensioner apparatus to realize tensioning, to guarantee the stable delivery of power.Driven synchronous pulley 10 is connected with axle drive shaft 16 by flat key.Axle drive shaft 16 is connected with wheel hub 15 by spline, and wheel hub 15 is supported in by hub bearing 14 in the axle tube 13 being connected with A trailing arm 3, and final wheel hub 15 is bolted transmission of power to wheel rim 12.Power transmission line is: motor 7, active synchronization belt wheel and axle 6, synchronous cog belt 9, driven synchronous pulley 10, axle drive shaft 16, wheel hub 15, wheel rim 12.
In Fig. 2, provided wheel limit electric drive single longitudenal arm associated component lateral plan.Comprise: vehicle frame 1, elastic caoutchouc hinge 2, A trailing arm 3, B trailing arm 8, little bearing brackett 4, motor 7, driven synchronous pulley 10, tensioner apparatus 17.Described motor power output axis center O and the position relationship between A trailing arm CD can calculate so that the width between centers between active synchronization belt wheel and axle 6 and driven synchronous pulley 10 changes minimum by theory.During due to bob under the effect of wheel at random road excitation, driven synchronous pulley 10 also can swing around elastic caoutchouc hinge line C with single longitudenal arm (comprising A trailing arm 3 and B trailing arm 8), now driven synchronous pulley 10 can change with the width between centers of active synchronization belt wheel and axle 6, therefore installed tensioner apparatus 17 in the utility model additional, make when driven synchronous pulley 10 is beated with wheel, all the time can keep the tensioning state of synchronous cog belt 9, guarantee the stable delivery of power, thereby make this organization plan feasible.In figure, B trailing arm 8 has protruding radian (this radian should be larger than motor external diameter) to avoid B trailing arm 8 when swinging with wheel (driven synchronous pulley 10) bob and motor is collided.Therefore A trailing arm 3 is owing to not interfering can become shown in Fig. 2 to arrange in vertical plane with motor drive component.
In the utility model, the brake system of selecting can adopt disc type brake or drum brake, only need install relevant brake assemblies additional.
In the utility model,, select the step-down ratio between suitable synchronous pulley can play the effect that the increasing of slowing down is turned round.
In the utility model, adopt Synchronous Belt Drives to have to operate steadily, noiseless, without advantages such as lubricated and sealings, reduced relevant manufacturing cost.Its transmission width between centers is not subject to the restriction of belt wheel size.
In the utility model, described integrated wheel limit drive system can be used for non-wheel flutter, complete use.
Claims (3)
1. the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system that has tightening device, comprise vehicle frame, elastic caoutchouc hinge, A trailing arm, little bearing brackett, little bearing, active synchronization belt wheel and axle, motor, B trailing arm, synchronous cog belt, driven synchronous pulley, large bearing, wheel rim, axle tube, hub bearing, wheel hub, axle drive shaft, tensioner apparatus, it is characterized in that, motor active synchronization wheel, little bearing, little bearing brackett is assembled into integrated, driven unit is fixed on vehicle frame, become a unsprung weight part, active synchronization belt wheel and axle are installed and are supported on little bearing brackett by bearing small in ends, little bearing brackett and motor are connected, the large bearing of flower wheel by two ends supports respectively and is arranged on A trailing arm and B trailing arm, driven synchronous pulley rotates together with connecting also by flat key and axle drive shaft, axle drive shaft and wheel hub adopt spline joint, and wheel hub is supported in the axle tube being connected with A trailing arm by hub bearing, wheel hub is bolted transmission of power is arrived to wheel rim, realizes power output.
2. the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system that has tightening device according to claim 1, it is characterized in that: motor arrangement is in vehicle frame, between active synchronization belt wheel and axle and driven synchronous pulley, install tensioner apparatus additional, can keep all the time the tensioning state of Timing Belt.
3. the single longitudenal arm suspension Timing Belt speed-reducing type wheel power drive system that has tightening device according to claim 1, is characterized in that: the middle part of B trailing arm has protruding radian, makes it when swinging, avoid motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726946.7U CN203766513U (en) | 2013-11-18 | 2013-11-18 | Single trailing arm suspension synchronous belt deceleration type electric wheel drive system with tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726946.7U CN203766513U (en) | 2013-11-18 | 2013-11-18 | Single trailing arm suspension synchronous belt deceleration type electric wheel drive system with tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203766513U true CN203766513U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726946.7U Expired - Fee Related CN203766513U (en) | 2013-11-18 | 2013-11-18 | Single trailing arm suspension synchronous belt deceleration type electric wheel drive system with tension device |
Country Status (1)
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| CN (1) | CN203766513U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692895A (en) * | 2013-12-02 | 2014-04-02 | 同济大学 | Novel single-trailing-arm suspension wheel electric drive system |
| CN105305714A (en) * | 2015-11-11 | 2016-02-03 | 无锡市星伟车辆配件有限公司 | Center motor assembly for electric vehicle or electric motorcycle |
-
2013
- 2013-11-18 CN CN201320726946.7U patent/CN203766513U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692895A (en) * | 2013-12-02 | 2014-04-02 | 同济大学 | Novel single-trailing-arm suspension wheel electric drive system |
| CN105305714A (en) * | 2015-11-11 | 2016-02-03 | 无锡市星伟车辆配件有限公司 | Center motor assembly for electric vehicle or electric motorcycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20191118 |