CN104875594A - Double-motor driving device with planetary gears - Google Patents
Double-motor driving device with planetary gears Download PDFInfo
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- CN104875594A CN104875594A CN201510309021.6A CN201510309021A CN104875594A CN 104875594 A CN104875594 A CN 104875594A CN 201510309021 A CN201510309021 A CN 201510309021A CN 104875594 A CN104875594 A CN 104875594A
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Abstract
The invention discloses a double-motor driving device with planetary gears. The double-motor driving device comprises a planetary gear speed reducer (120), a first motor (130) and a second motor (140). The double-motor driving device has the advantages that a planetary carrier (121), a sun gear (123) and a first motor shaft (131) are of hollow structures, the first motor shaft (131) is connected with the sun gear (123), a second motor shaft (141) penetrates the hollow structures of the first motor shaft (131), the sun gear (123) and the planetary carrier (121) and is connected with the planetary carrier (121), deceleration output effects can be realized by the first motor (130), direct output effects can be realized by the second motor (140), accordingly, the double-motor driving device has two tap positions equivalently, mechanical gear shifting mechanisms can be omitted, only the motors need to be switched over to realize driving effects according to working conditions, problems of insufficient power performance and complexity in gear shifting control in the prior art can be solved, and the double-motor driving device is mainly applied to the field of driving devices of pure electric vehicles.
Description
Technical field
The present invention relates to driving device for pure electric vehicles field, particularly relate to a kind of planetary wheel double-motor driving device.
Background technology
Current auto emission is one of principal element becoming environmental pollution, is protection of the environment, reduces auto emission, and development pure electric automobile has become one of important means solving environmental issue.
The actuating device of current pure electric automobile mainly contains two kinds of structures, one be motor without speed-changing mechanism Direct driver, one is motor belt motor speed-changing mechanism variable speed drive (VSD).Front one, owing to not having speed-changing mechanism, controls simple, but there is the problem of climbing, acceleration tractive performance deficiency, in order to meet larger climbing, acceleration capability, must be worked, and then affect battery life by big current; Rear one is owing to there being speed-changing mechanism, and climbing, acceleration tractive performance improve, and without the need to big current work, but owing to using traditional speed-changing mechanism, makes gearshift control to become complicated, adds full-vehicle control complexity.Therefore can design a kind of tractive performance and better control simple actuating device, be also the challenge with positive effect.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of this invention is to provide a kind of planetary wheel double-motor driving device.
The present invention is a kind of technical scheme that its technical matters of solution adopts: a kind of planetary wheel double-motor driving device, comprise epicyclic reduction gear, first motor, second motor, described epicyclic reduction gear comprises pinion carrier, gear ring, sun wheel, described gear ring is fixed, described pinion carrier, sun wheel is hollow structure, described first motor comprises the first motor shaft, described first motor shaft is hollow structure, described first motor shaft is connected with described sun wheel, described second motor comprises the second motor shaft, described second motor shaft is through described first motor shaft, sun wheel, the hollow structure of pinion carrier is also connected with described pinion carrier.
The present invention is the another kind of technical scheme that its technical matters of solution adopts: a kind of planetary wheel double-motor driving device, comprise epicyclic reduction gear, first motor, second motor, described epicyclic reduction gear comprises pinion carrier, gear ring, described gear ring is fixed, described pinion carrier is hollow structure, described first motor comprises the first motor shaft, described first motor shaft is hollow structure, described first motor shaft ends is provided with gear structure for replacing the sun wheel of described epicyclic reduction gear, described second motor comprises the second motor shaft, described second motor shaft is through described first motor shaft, the hollow structure of pinion carrier is also connected with described pinion carrier.
Further, described first motor shaft hollow structure is cylinder coaxial aperture, and is bearing on described second motor shaft by bearing.
Further, described sun wheel hollow structure is cylinder coaxial aperture, and is fixed on described first motor shaft by interference fit.
Further, described pinion carrier hollow structure is spline coaxial aperture, and is fixed on described second motor shaft by spline fitted.
Further, described a kind of planetary wheel double-motor driving device also comprises housing, and described gear ring is fixing on the housing.
Further, described a kind of planetary wheel double-motor driving device also comprises front end cover and rear side housing, described front end cover and rear side housing are connected the two ends of described housing respectively, described second motor shaft is bearing on described front end cover and rear side housing by bearing, and forms the mouth of described a kind of planetary wheel double-motor driving device through described front end cover.
Principle of work of the present invention is: drive according to operating mode switch motor, during low-speed and large-torque operating mode, described first motor drives described sun wheel, described sun wheel drives described pinion carrier, described pinion carrier drives the outside outputting power of described second motor shaft, if desired, described second motor also can combine outside outputting power; During the little moment operating mode of high speed, described second motor directly outside outputting power, if desired, described first motor also can combine outside outputting power; Due to the ingehious design of described a kind of planetary wheel double-motor driving device, described first motor exports for slowing down, described second motor is directly export, namely equivalence has two gears, improve tractive performance, simultaneously again without the need to mechanical changeover mechanism, make gearshift control to become simple, solve foregoing technical matters.
The invention has the beneficial effects as follows: by described a kind of planetary wheel double-motor driving device, both improve tractive performance, make again gearshift control to become simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
The implication marked in Fig. 1 is: 110. front end covers, 120. epicyclic reduction gears, 121. pinion carriers, 122. gear rings, 123. sun wheels, 130. first motors, 131. first motor shafts, 140. second motors, 141. second motor shafts, 150. housings, 160. rear side housings.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In the embodiment shown in fig. 1, described a kind of planetary wheel double-motor driving device, comprise epicyclic reduction gear 120, first motor 130, second motor 140, epicyclic reduction gear 120 comprises pinion carrier 121, gear ring 122, sun wheel 123, gear ring 122 is fixed, pinion carrier 121, sun wheel 123 is hollow structure, first motor 130 comprises the first motor shaft 131, first motor shaft 131 is hollow structure, first motor shaft 131 is connected with sun wheel 123, second motor 140 comprises the second motor shaft 141, second motor shaft 141 is through the first motor shaft 131, sun wheel 123, the hollow structure of pinion carrier 121 is also connected with pinion carrier 121.
In the embodiment of the present invention, the first motor shaft 131 hollow structure is cylinder coaxial aperture, and is bearing on the second motor shaft 141 by bearing.
In the embodiment of the present invention, sun wheel 123 hollow structure is cylinder coaxial aperture, and is fixed on the first motor shaft 131 by interference fit.
In the embodiment of the present invention, pinion carrier 121 hollow structure is spline coaxial aperture, and is fixed on the second motor shaft 141 by spline fitted.
In the embodiment of the present invention, described a kind of planetary wheel double-motor driving device also comprises housing 150, and gear ring 122 is fixed on housing 150.
In the embodiment of the present invention, described a kind of planetary wheel double-motor driving device also comprises front end cover 110 and rear side housing 160, front end cover 110 is connected the two ends of housing 150 respectively with rear side housing 160, second motor shaft 141 to be bearing on front end cover 110 and rear side housing 160 by bearing, and forms the mouth of described a kind of planetary wheel double-motor driving device through front end cover 110.
The principle of work of the embodiment of the present invention is: drive according to operating mode switch motor, during low-speed and large-torque operating mode, first motor 130 drives sun wheel 123, sun wheel 123 drives pinion carrier 121, pinion carrier 121 drives the second motor shaft 141 outwards outputting power, if desired, the second motor 140 also can combine outside outputting power; During the little moment operating mode of high speed, the second motor 140 is directly to outer outputting power, and if desired, the first motor 130 also can combine outside outputting power; Due to the ingehious design of described a kind of planetary wheel double-motor driving device, first motor 130 exports for slowing down, second motor 140 is directly export, namely equivalence has two gears, improve tractive performance, simultaneously again without the need to mechanical changeover mechanism, make gearshift control to become simple, solve foregoing technical matters.
The beneficial effect of the embodiment of the present invention is: by described a kind of planetary wheel double-motor driving device, both improve tractive performance, makes again gearshift control to become simple.
The above is only the description of the preferred embodiment of the present invention; should be understood that the finiteness due to literal expression; and objectively there is unlimited concrete structure; for this area those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. a planetary wheel double-motor driving device, it is characterized in that: comprise epicyclic reduction gear, first motor, second motor, described epicyclic reduction gear comprises pinion carrier, gear ring, sun wheel, described gear ring is fixed, described pinion carrier, sun wheel is hollow structure, described first motor comprises the first motor shaft, described first motor shaft is hollow structure, described first motor shaft is connected with described sun wheel, described second motor comprises the second motor shaft, described second motor shaft is through described first motor shaft, sun wheel, the hollow structure of pinion carrier is also connected with described pinion carrier.
2. a planetary wheel double-motor driving device, it is characterized in that: comprise epicyclic reduction gear, first motor, second motor, described epicyclic reduction gear comprises pinion carrier, gear ring, described gear ring is fixed, described pinion carrier is hollow structure, described first motor comprises the first motor shaft, described first motor shaft is hollow structure, described first motor shaft ends is provided with gear structure for replacing the sun wheel of described epicyclic reduction gear, described second motor comprises the second motor shaft, described second motor shaft is through described first motor shaft, the hollow structure of pinion carrier is also connected with described pinion carrier.
3. a kind of planetary wheel double-motor driving device according to claim 1 and 2, is characterized in that: described first motor shaft hollow structure is cylinder coaxial aperture, and is bearing on described second motor shaft by bearing.
4. a kind of planetary wheel double-motor driving device according to claim 1, be is characterized in that: described sun wheel hollow structure is cylinder coaxial aperture, and is fixed on described first motor shaft by interference fit.
5. a kind of planetary wheel double-motor driving device according to claim 1 and 2, be is characterized in that: described pinion carrier hollow structure is spline coaxial aperture, and is fixed on described second motor shaft by spline fitted.
6. a kind of planetary wheel double-motor driving device according to claim 1 and 2, is characterized in that: described a kind of planetary wheel double-motor driving device also comprises housing, and described gear ring is fixing on the housing.
7. a kind of planetary wheel double-motor driving device according to claim 1 and 2, it is characterized in that: described a kind of planetary wheel double-motor driving device also comprises front end cover and rear side housing, described front end cover and rear side housing are connected the two ends of described housing respectively, described second motor shaft is bearing on described front end cover and rear side housing by bearing, and forms the mouth of described a kind of planetary wheel double-motor driving device through described front end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309021.6A CN104875594A (en) | 2015-06-06 | 2015-06-06 | Double-motor driving device with planetary gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309021.6A CN104875594A (en) | 2015-06-06 | 2015-06-06 | Double-motor driving device with planetary gears |
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| Publication Number | Publication Date |
|---|---|
| CN104875594A true CN104875594A (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510309021.6A Pending CN104875594A (en) | 2015-06-06 | 2015-06-06 | Double-motor driving device with planetary gears |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216653A (en) * | 2015-10-30 | 2016-01-06 | 福建万润新能源科技有限公司 | A kind of double-motor multi-mode power system of adjustable speed and driving method |
| CN105262274A (en) * | 2015-09-28 | 2016-01-20 | 台州市大泰机电有限公司 | Vehicle double-motor power device |
| WO2018090485A1 (en) * | 2016-11-18 | 2018-05-24 | 精进电动科技股份有限公司 | Coaxial multi-motor drive system and vehicle provided with same |
| CN108134200A (en) * | 2017-12-22 | 2018-06-08 | 东莞市本量电子科技有限公司 | A kind of built-in bi-motor changes six grades of electric turning antenna driver |
| CN108128130A (en) * | 2017-12-29 | 2018-06-08 | 苏州凯博易控驱动技术有限公司 | Bi-motor deceleration module |
| US20220109356A1 (en) * | 2020-10-06 | 2022-04-07 | Drs Naval Power Systems, Inc. | Hybrid radial-axial motor |
-
2015
- 2015-06-06 CN CN201510309021.6A patent/CN104875594A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262274A (en) * | 2015-09-28 | 2016-01-20 | 台州市大泰机电有限公司 | Vehicle double-motor power device |
| CN105216653A (en) * | 2015-10-30 | 2016-01-06 | 福建万润新能源科技有限公司 | A kind of double-motor multi-mode power system of adjustable speed and driving method |
| WO2018090485A1 (en) * | 2016-11-18 | 2018-05-24 | 精进电动科技股份有限公司 | Coaxial multi-motor drive system and vehicle provided with same |
| US11052751B2 (en) | 2016-11-18 | 2021-07-06 | Jing-Jin Electric Technologies Co., Ltd. | Coaxial multi-motor drive system and vehicle provided with same |
| CN108134200A (en) * | 2017-12-22 | 2018-06-08 | 东莞市本量电子科技有限公司 | A kind of built-in bi-motor changes six grades of electric turning antenna driver |
| CN108128130A (en) * | 2017-12-29 | 2018-06-08 | 苏州凯博易控驱动技术有限公司 | Bi-motor deceleration module |
| US20220109356A1 (en) * | 2020-10-06 | 2022-04-07 | Drs Naval Power Systems, Inc. | Hybrid radial-axial motor |
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Application publication date: 20150902 |