CN105196849A - Dual-motor single-planet reducer and rear axle - Google Patents
Dual-motor single-planet reducer and rear axle Download PDFInfo
- Publication number
- CN105196849A CN105196849A CN201410282117.3A CN201410282117A CN105196849A CN 105196849 A CN105196849 A CN 105196849A CN 201410282117 A CN201410282117 A CN 201410282117A CN 105196849 A CN105196849 A CN 105196849A
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- motor
- output shaft
- planetary reducer
- sun wheel
- wheel
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a dual-motor single-planet reducer and a rear axle, and belongs to the field of electric cars. Two motors are adopted in the reducer, axes of the two motors are located on the same straight line, motor shafts are arranged in an inner spline of a center hole of a sun wheel through splines, an output shaft on a planet carrier is a hollow shaft, one motor shaft penetrates through the hollow shaft to be connected with the center hole of the sun wheel, the hollow shaft is connected with an output wheel, and the output wheel is connected with a differential mechanism. According to the reducer of the structure and the rear axle, driving power is improved, the size of the motors is reduced, manufacturing cost is reduced, marketing channels are expanded, and the sale quantity is increased.
Description
Technical field
The present invention relates to a kind of single planetary reducer and back axle, particularly a kind of double-motor list planetary reducer and back axle, belong to electric automobiles.
Background technology
General drive system of electric motor vehicle, by a motor, a reductor, a diff and a back axle housing are formed, from motor power out through reductor, power is sent to wheel nave by diff two semiaxis in back axle housing, wherein, the output shaft of motor is all generally be connected with the sun gear in a pinion carrier, motor power is delivered on satellite gear by sun gear, then satellite gear drives the pinion carrier be connected with planetary gear wheel shaft again, pinion carrier is connected with output shaft, by transmission of power on diff, wheel nave is driven to turn a wheel, utilize the battery-driven car of this structure, particularly electro-tricycle, usually for road dead level or the relatively few situation of loading load, but, tortuous at some roads, on the road of rugged mountain area or high-land, this vehicle just seems some under power, not that speed can not improve, be with motionless heavy load exactly, it is very inconvenient to use, if use heavy motor, except the weight of motor is large, volume is large, need below railway carriage outside large space, the reason that another one is important, that heavy motor cost is high, vehicle cost is high, if selling price is too high, the general purchasing power of buyer on the ground of mountain area or road unevenness is lower, sales volume does not increase, if selling price is low, manufacturing firm does not calculate, this awkward boundary, manufacturing firm is stymied by, how just can crack this awkward predicament, it is a great problem that battery-driven car producer faces for mountain area and high-land market.
Summary of the invention
For the large predicament that power electric vehicle motor price high sales volume does not increase, the low manufacturing firm of price does not calculate, the invention provides a kind of double-motor list planetary reducer and back axle, the back axle main purpose of this structure improves to drive power, reduce motor volume, carry out appropriate design, reduce manufacturing cost, widen distribution channel, improve sales volume.
Technical scheme of the present invention is, a kind of double-motor list planetary reducer, comprise motor, planetary reducer, described motor arranges two, the output shaft of a motor is directly fixedly connected on the sun wheel center of planetary reducer, the pinion carrier of planetary reducer is connected with output shaft, described output shaft is hollow shaft, the output shaft of another motor is fixedly connected on the sun wheel center of planetary reducer simultaneously through described hollow shaft output shaft from relative direction, planet carrier output shaft is provided with output wheel, sun wheel centre hole is internal spline structure, described motor output shaft end is provided with male splines, two motor shaft ends male spliness are fixed together by the female splines of sun wheel centre hole and sun wheel, described motor shaft and planet carrier output shaft are on the same axis.
A kind of double-motor list planetary reducer back axle, described back axle comprises double-motor list planetary reducer, motor arranges two, the output shaft of a motor is directly fixedly connected on the sun wheel center of planetary reducer, the pinion carrier of planetary reducer is connected with output shaft, described output shaft is hollow structure, the output shaft of another motor is fixedly connected on the sun wheel center of planetary reducer simultaneously through described hollow structure output shaft from relative direction, planet carrier output shaft is provided with output wheel, back axle is provided with diff, engage between described output wheel with diff wheel for inputting.
The good effect that the present invention brings is because this motor make use of two micro-machines, two small machines can reduce the height of vehicle car, rational Car design can be carried out, for brush motor, two power are added 1.2 times of prices to a heavy motor and can reduce 50-150 unit compared with the Costco Wholesale of a heavy motor, namely change into two brush motors with power can significantly reduce costs, one has the price of brush heavy motor to be also added brushless motor slightly larger than two power, namely change is two can not increase with cost after the brushless motor of power, but the fault rate of brushless motor and consumptive material are significantly less than brush motor, because the price of two micro-machines is lower than the heavy motor price of equal-wattage, can reduce costs, if adopt small machine to be brushless motor, the life-span of motor can be extended, utilize two micro-machines, compared with a heavy motor, there is the advantage that moment of torsion is large, use when being particularly suitable for climbing, therefore, be suitable for mountain area and high-land road, after replacing an original heavy motor by two small machines, the manufacturing cost of vehicle can either be reduced, realize small profits and quick turnover, bring material benefit can to again hills or area, mountain area common people, it is crucial that alleviate mountain area or high-land common people burden.
Accompanying drawing explanation
The integral structure figure of Fig. 1 patent of the present invention.
The connection structure schematic diagram of Fig. 2 two motor shaft and sun gear.
Detailed description of the invention
In order to better understand and implement technical scheme of the present invention, provide some embodiments of the present invention at this, these embodiments, in order to better explain technical solutions according to the invention, are not formed any form restriction of the present invention
Be described with regard to concrete scheme of the present invention referring to Fig. 1, Fig. 2, in figure, 1a: right motor, 1b: left motor, 4a: left motor rack, 4b: right motor rack, 5: back axle, 6: sun wheel, 7: satellite gear, 8: planet wheel spindle, 9: pinion carrier, 10: output wheel, 11a: right motor output shaft, 11b: left motor output shaft, 12: pinion carrier hollow shaft, 13: diff input gear, 14: diff.
The present invention is a kind of double-motor list planetary reducer and back axle, comprise motor, satellite gear, sun wheel, described back axle is provided with two motors, two motors are right motor 1a in the present invention, left motor 1b, described two motors utilize left motor rack 4a respectively, right motor rack 4b is fixed on back axle 5, right motor 1a, the motor shaft of left motor 1b is on same axis, the output end of two motors is namely: right motor output shaft 11a, the end of left motor output shaft 11b is male splines, sun wheel center is female splines, be inserted into the middle part in sun wheel centre hole the end equal length of two motor shafts, that is: two motor shaft ends arrange in opposite directions at sun wheel thickness direction and respectively account for half, specifically, left motor output shaft 11a is directly fixedly connected in the sun wheel centre hole of planetary reducer, the planet wheel spindle 8 of the satellite gear 7 in planetary reducer is connected to pinion carrier 9, pinion carrier 9 is connected with speed reducer output shaft, described output shaft is hollow shaft 12, right motor output shaft 11b passes described hollow shaft 12 from relative direction, inject in sun wheel centre hole equally, be fixedly connected in sun wheel 6 centre hole of planetary reducer, pinion carrier 9 output shaft is provided with reductor output wheel 10, sun wheel 6 centre hole is internal spline structure, the end of described motor output shaft machine right motor 11b and left motor 11a is provided with male splines, two motor shaft ends male spliness are by the female splines of sun wheel 6 centre hole and sun wheel fixed carrier output shaft are provided with output wheel 10, two the motor ends be oppositely arranged are at sun wheel thickness direction, respectively account for half, sun wheel 6 is driven to rotate with this, by the power of motor by satellite gear 7, pinion carrier 9 outputs on pinion carrier hollow shaft 12, drive the reductor output wheel 10 that hollow shaft 12 is arranged, reductor output wheel 10, by transmission of power to diff output wheel 13, diff 14 is driven to rotate, back axle is provided with diff 14, mesh together between described output wheel 10 and diff wheel for inputting 13.
When electric machine rotation, the motor of two same model rotates simultaneously, by sun wheel 6 on transmission of power to sun wheel 6 by transmission of power on multiple satellite gear 7, the planet wheel spindle 8 of multiple satellite gear 7 is connected with pinion carrier 9, satellite gear 7 by transmission of power in pinion carrier 9, the centre of pinion carrier 9 is provided with hollow shaft 12, two motor shafts are fixedly connected in the centre hole of sun wheel 6, centre hole thickness direction, two motor shaft ends all insert half, the axle of one of them motor and right motor shaft 11a are through hollow shaft 12 and are connected in sun wheel 6 centre hole, the power exported through hollow shaft 12 by the reductor output gear 10 on hollow shaft 12 by transmission of power on diff wheel for inputting 13, power is delivered on two wheel hubs in left and right by two semiaxis of diff 14 respectively, drive vehicle wheel rotation.
This motor make use of two micro-machines, two small machines can reduce the height of vehicle car, rational Car design can be carried out, because the price of two micro-machines is lower than the heavy motor price of equal-wattage, can reduce costs, because this small machine is brushless motor, the life-span of motor can be extended, and, utilize two micro-machines, compared with a heavy motor, there is the advantage that moment of torsion is large, use when being particularly suitable for climbing, therefore, be suitable for mountain area and high-land road, after replacing an original heavy motor by two small machines, the manufacturing cost of vehicle can either be reduced, realize small profits and quick turnover, bring material benefit can to again hills or area, mountain area common people, it is crucial that alleviate mountain area or high-land common people burden.
After describing various specific embodiment of the present invention above in detail, those of ordinary skill in the art should be well understood to, according to the various common practise of this area, can carry out various equivalent variations, equivalent replacement according to thinking of the present invention or simply revise, these all should belong to the scope of technical solution of the present invention.
Claims (4)
1. a double-motor list planetary reducer, comprise motor, planetary reducer, it is characterized in that: described motor arranges two, the output shaft of a motor is directly fixedly connected on the sun wheel center of planetary reducer, the pinion carrier of planetary reducer is connected with output shaft, described output shaft is hollow shaft, and the output shaft of another motor is fixedly connected on the sun wheel center of planetary reducer simultaneously through described hollow shaft from relative direction, planet carrier output shaft is provided with output wheel.
2. a kind of double-motor list planetary reducer according to claim 1, it is characterized in that: sun wheel centre hole is internal spline structure, described motor output shaft end is provided with male splines, and two motor shaft ends male spliness are fixed together by the female splines of sun wheel centre hole and sun wheel.
3. a kind of double-motor list planetary reducer according to claim 1, is characterized in that: described motor shaft and planet carrier output shaft are on the same axis.
4. a double-motor list planetary reducer back axle, described back axle comprises double-motor list planetary reducer, it is characterized in that: motor arranges two, the output shaft of a motor is directly fixedly connected on the sun wheel center of planetary reducer, the pinion carrier of planetary reducer is connected with output shaft, described output shaft is hollow structure, the output shaft of another motor is fixedly connected on the sun wheel center of planetary reducer simultaneously through described hollow structure output shaft from relative direction, planet carrier output shaft is provided with output wheel, back axle is provided with diff, engage between described output wheel with diff wheel for inputting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282117.3A CN105196849A (en) | 2014-06-23 | 2014-06-23 | Dual-motor single-planet reducer and rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282117.3A CN105196849A (en) | 2014-06-23 | 2014-06-23 | Dual-motor single-planet reducer and rear axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105196849A true CN105196849A (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410282117.3A Pending CN105196849A (en) | 2014-06-23 | 2014-06-23 | Dual-motor single-planet reducer and rear axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105196849A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992686A (en) * | 2009-08-12 | 2011-03-30 | 本特勒尔汽车技术有限公司 | Drive unit for vehicle and drive method of vehicle |
| CN102107604A (en) * | 2009-12-25 | 2011-06-29 | 比亚迪股份有限公司 | Hybrid driving system for automobile and gear operating method thereof |
| CN102431448A (en) * | 2011-12-03 | 2012-05-02 | 徐州开蓝信息科技有限公司 | Driving system of battery transport car |
| CN103332109A (en) * | 2013-07-04 | 2013-10-02 | 北京理工大学 | Tracked vehicle electromechanical coupling transmission device |
| WO2013173915A1 (en) * | 2012-05-25 | 2013-11-28 | Pantero Technologies Inc. | System for driving the drive wheels of an electric or hybrid vehicle |
| CN203611712U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
| CN203611710U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Adjustable-power dual-motor driving rear axle for electric vehicle |
| CN203611747U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Adjustable-power rear axle for electric vehicle |
| CN203611709U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
| CN203611711U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
-
2014
- 2014-06-23 CN CN201410282117.3A patent/CN105196849A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992686A (en) * | 2009-08-12 | 2011-03-30 | 本特勒尔汽车技术有限公司 | Drive unit for vehicle and drive method of vehicle |
| CN102107604A (en) * | 2009-12-25 | 2011-06-29 | 比亚迪股份有限公司 | Hybrid driving system for automobile and gear operating method thereof |
| CN102431448A (en) * | 2011-12-03 | 2012-05-02 | 徐州开蓝信息科技有限公司 | Driving system of battery transport car |
| WO2013173915A1 (en) * | 2012-05-25 | 2013-11-28 | Pantero Technologies Inc. | System for driving the drive wheels of an electric or hybrid vehicle |
| CN103332109A (en) * | 2013-07-04 | 2013-10-02 | 北京理工大学 | Tracked vehicle electromechanical coupling transmission device |
| CN203611712U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
| CN203611710U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Adjustable-power dual-motor driving rear axle for electric vehicle |
| CN203611747U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Adjustable-power rear axle for electric vehicle |
| CN203611709U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
| CN203611711U (en) * | 2013-10-29 | 2014-05-28 | 林州市合鑫铸业有限公司 | Dual-motor driving electric vehicle rear axle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018130101A1 (en) * | 2017-01-13 | 2018-07-19 | 苏州绿控传动科技有限公司 | Electric drive axle |
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Application publication date: 20151230 |