CN101771310B - Driving motor of electric vehicle - Google Patents
Driving motor of electric vehicle Download PDFInfo
- Publication number
- CN101771310B CN101771310B CN2010101024147A CN201010102414A CN101771310B CN 101771310 B CN101771310 B CN 101771310B CN 2010101024147 A CN2010101024147 A CN 2010101024147A CN 201010102414 A CN201010102414 A CN 201010102414A CN 101771310 B CN101771310 B CN 101771310B
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- Prior art keywords
- shaft
- gear
- clutch
- driving
- tooth
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- 210000000003 hoof Anatomy 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Gear Transmission (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A driving motor of an electric vehicle comprises a source motor shaft and a final driving shaft, and is characterized in that the source motor shaft of the motor is directly used as a main shaft; a middle shaft is added between the main shaft and the final driving shaft; the main shaft is provided with a first gear driving tooth and a clutch, and is loosely sleeved with a second gear driving tooth; the first gear driving tooth is engaged with a first gear driven tooth installed on the middle shaft through a unidirectional bearing; the second gear driving tooth is engaged with a second gear driven tooth installed on the middle shaft; the clutch switches the gears based on the rotating speed level of the main shaft; and the middle shaft is connected with the final driving shaft through a gear. The driving motor realizes automatic switching of two gears, thereby being capable of naturally sliding in the period of impact torque to generate the buffer; and the driving motor has simplified operation, convenient driving, simple structure and reliable performance.
Description
Technical field
The present invention relates to a kind of driving motor of electric vehicle, relate in particular to a kind of electric motor car automatic speed changing drive motor.
Background technique
Existing electric motor car mainly uses permanent magnetic brushless, and this motor is because excitation is non-adjustable, and the constant power variable-speed is than low, needs the more power deposit for the applying working condition excursion of reality, and this is very uneconomic.
The power performance of expanding electric vehicle motor by the increase gear is the effective way that overcomes the permanent magnetic brushless defective.A kind of electric vehicle motor is arranged at present, this electric vehicle motor comprises the source motor shaft, main shaft and pto, on the motor shaft of source driving tooth is installed, one grade of driving tooth and second gear driving tooth are installed on the main shaft, one grade of driving tooth meshes with the one grade of driven tooth that is installed in by free wheel device on the pto, second gear driving tooth and the second gear driven tooth engagement that is installed in by controlled one-way element on the pto, this driving tooth and the one grade of driving tooth engagement that is installed on the main shaft, a controlled cam roller formula clutch is arranged in the second gear driven tooth, the next door of second gear driven tooth is equipped with electromagnet, this electromagnet is connected with the shift switch, cooperates the switching that realizes two gears by shift switch and electromagnet.Though this motor has improved speed ratio to a certain extent, have following shortcoming: 1, this motor is a manual shift, disperses driver's attention easily and is unfavorable for safety traffic, to driver requested higher.2, this clutch is a rigidity, does not have buffering during clutch, drive perceptual difference, and clutch damages easily.
Summary of the invention
The object of the present invention is to provide a kind of driving motor of electric vehicle of two gears, this drive motor is self shifter.
The object of the present invention is achieved like this, and a kind of driving motor of electric vehicle comprises source motor shaft and final stage live axle, it is characterized in that: this motor directly as main shaft, is set up jack shaft between described main shaft and the described final stage live axle with described source motor shaft; One grade of driving tooth and clutch are installed on the described main shaft, and empty cover second gear driving tooth, described one grade of driving tooth and the one grade of driven tooth engagement that is installed in by unilateral bearing on the jack shaft, described second gear driving tooth and the second gear driven tooth engagement that is installed on the jack shaft, described jack shaft is connected by gear with described final stage live axle, and described clutch is just realized the switching of gear according to the rotating speed of described main shaft.
Above-mentioned clutch is a centrifugal friction clutch, friction hoof piece and clutch driven plate that this centrifugal friction clutch comprises the clutch driving plate that is installed on the main shaft, is connected with clutch driving plate by extension spring, above-mentioned clutch driven plate are arranged on the outside of friction hoof piece and are structure as a whole with second gear driving tooth that sky is enclosed within on the main shaft.
Above-mentioned second gear driven tooth interference fit is installed on the jack shaft.
Above-mentioned final stage live axle is connected with pinion on being installed in jack shaft by gearwheel mounted thereto.
Working principle of the present invention:
Set
A, when the source motor rotational shaft speed is ω, source motor shaft sense of rotation is counterclockwise, the jack shaft sense of rotation is a clockwise direction, then the sense of rotation of wheel drive shaft be a counter clockwise direction;
B, centrifugal friction clutch be ω k in conjunction with rotating speed, when the rotating speed of source motor shaft is lower than ω k, friction hoof piece and clutch driven plate are in separated state, when the rotating speed of source motor shaft is higher than ω k, friction hoof piece overcomes the pulling force of extension spring, fit with clutch driven plate, drive clutch driven plate and second gear driving tooth and rotate with the source motor shaft.
The assembly direction of c, unilateral bearing: one grade of driven tooth can drive jack shaft and be rotated in a clockwise direction, but can not rotate in opposite direction, when the second gear driven tooth drives the rotation of jack shaft clockwise direction, does not drive one grade of driven tooth rotation.
D, one grade of reduction speed ratio are S1, and the second gear reduction speed ratio is S2, and final stage fixedly reduction speed ratio is S3, wherein
S1≥S2
Function of the present invention is achieved in that
When source motor rotational shaft speed ω≤ω k, friction hoof piece and clutch driven plate are in separated state, and power transmission line is: source motor shaft → one grade driving tooth → one grade of driven tooth → unilateral bearing → jack shaft → small gear → gearwheel → final stage live axle.
Power source motor output first gear speed ω 1 and torque T 1
ω1＝ω×S1×S3
T1＝T/(S1×S3)
T is the power source motor output torque.
At this moment clutch driven plate and the empty second gear driving tooth that is enclosed within on the motor shaft of source rotate under the drive of second gear driven tooth, but speed is lower than ω.
When source motor rotational shaft speed ω 〉=ω k, friction hoof piece overcomes the pulling force of extension spring, move and the contact clutch driven plate, clutch driven plate and second gear driving tooth rotate with motor shaft gradually, and power transmission line becomes: source motor shaft → clutch driving plate → friction hoof piece → clutch driven plate and second gear driving tooth → second gear driven tooth → jack shaft → small gear → gearwheel → final stage live axle.
Power source motor output second speed ω 2 and torque T 2
ω2＝Ω×S2×S3
T2＝T/(S2×S3)
At this moment one grade of driven tooth rotating speed is lower than jack shaft on the jack shaft, is rotation counterclockwise with respect to jack shaft, and unilateral bearing only plays the bearing effect, and rotation relation and power are disconnected.
By ω k rationally is set, can make driving motor of electric vehicle of the present invention obtain higher speed ratio and efficient.
Centrifugal friction clutch working principle of the present invention:
Centrifugal friction clutch of the present invention utilizes centrifugal force F to come work, and centrifugal force F makes friction hoof piece be tending towards combining with clutch driven plate, provides friction driving required positive pressure P, and the value of centrifugal force F is determined by following formula
F＝M*R*ω
2
Wherein M is the quality of friction hoof piece, and R is the radius of friction hoof piece barycenter to motor shaft axle center, source, and ω is that the source motor rotational shaft speed is an angular velocity;
And the effect of extension spring makes friction hoof piece be tending towards separating with clutch driven plate, and its power value K is determined by following formula
K＝K*Δ
x
P＝aF-bK
When aF＞bK, the P value is being for just, and the friction hoof piece contact clutch driven plate that outwards moves produces frictional force M
M＝μP
μ is a friction factor, and frictional force M is moved clutch driven plate and transferring power.
The present invention has following beneficial effect: drive motor of the present invention has been realized two grades of automatic switchovers, can skid naturally when impulsive torque is arranged, and produces buffering, has not only reduced operation, be convenient to drive, and also simple in structure, reliable performance.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Accompanying drawing 1 is structural representation of the present invention.
Embodiment
Embodiment: a kind of driving motor of electric vehicle, comprise source motor shaft and final stage live axle 12, this motor directly as main shaft 7, is set up jack shaft 11 between described main shaft 7 and the described final stage live axle 12 with described source motor shaft; One grade of driving tooth 6 and clutch are installed on the described main shaft 7, and empty cover second gear driving tooth 5, described one grade of driving tooth 6 and one grade of driven tooth, 8 engagements that are installed in by unilateral bearing 10 on the jack shaft 11, described second gear driving tooth 5 and second gear driven tooth 9 engagements that are installed on the jack shaft 11, described jack shaft 11 and described final stage live axle 12 are connected by gear, and described clutch is just realized the switching of gear according to the rotating speed of described main shaft.
Friction hoof piece 2 and clutch driven plate 3 that described centrifugal friction clutch comprises the clutch driving plate 1 that is installed on the main shaft 7, is connected with clutch driving plate 1 by extension spring 4, described clutch driven plate 3 is arranged on the outside of friction hoof piece 2 and is structure as a whole with second gear driving tooth 5 that sky is enclosed within on the main shaft 7
Described unilateral bearing 10 is the assembly parts of conventional one-way element and bearing.
Described second gear driven tooth 9 interference fit are installed on the jack shaft 11.
Described final stage live axle 12 is connected with a joggle by gearwheel mounted thereto 13 and the small gear 14 that is installed on the described jack shaft 11.
Claims (3)
1. a driving motor of electric vehicle comprises source motor shaft and final stage live axle (12), it is characterized in that: this motor directly as main shaft (7), is set up jack shaft (11) between described main shaft (7) and the described final stage live axle (12) with described source motor shaft; One grade of driving tooth (6) and clutch are installed on the described main shaft (7), and empty cover second gear driving tooth (5), described one grade of driving tooth (6) and one grade of driven tooth (8) engagement that is installed in by unilateral bearing (10) on the jack shaft (11), described second gear driving tooth (5) and second gear driven tooth (9) engagement that is installed on the jack shaft (11), described jack shaft (11) is connected by gear with described final stage live axle (12), and described clutch is just realized the switching of gear according to the rotating speed of described main shaft (7); Described clutch is a centrifugal friction clutch, friction hoof piece (2) and clutch driven plate (3) that it comprises the clutch driving plate (1) that is installed on the described main shaft (7), is connected with clutch driving plate (1) by extension spring (4), described clutch driven plate (3) are arranged on the outside of friction hoof piece (2) and are structure as a whole with second gear driving tooth (5) that sky is enclosed within on the main shaft (7).
2. drive motor as claimed in claim 1 is characterized in that, described second gear driven tooth (9) interference fit is installed on the jack shaft (11).
3. drive motor as claimed in claim 1 or 2 is characterized in that: described final stage live axle (12) is connected with a joggle by gearwheel mounted thereto (13) and the small gear (14) that is installed on the described jack shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101024147A CN101771310B (en) | 2010-01-29 | 2010-01-29 | Driving motor of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101024147A CN101771310B (en) | 2010-01-29 | 2010-01-29 | Driving motor of electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101771310A CN101771310A (en) | 2010-07-07 |
| CN101771310B true CN101771310B (en) | 2011-11-02 |
Family
ID=42503991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101024147A Expired - Fee Related CN101771310B (en) | 2010-01-29 | 2010-01-29 | Driving motor of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101771310B (en) |
Families Citing this family (22)
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|---|---|---|---|---|
| CN102208844B (en) * | 2011-05-13 | 2013-01-23 | 重庆宗申通用动力机械有限公司 | Driving mechanism of electric vehicle |
| CN102437683A (en) * | 2011-10-20 | 2012-05-02 | 秦廷修 | Two-level gear automatic speed-adjusting motor for electric motorcycle |
| CN102555796A (en) * | 2011-11-28 | 2012-07-11 | 重庆大学 | Two-speed automatic gear shifting rear axle driving system for pure electric vehicles |
| CN102840282B (en) * | 2012-08-31 | 2016-01-20 | 重庆钟华机械有限责任公司 | A kind of electric motor car two-shift automatic variable speed system |
| CN103438173A (en) * | 2013-09-06 | 2013-12-11 | 重庆和合机电有限公司 | Mechanical self-adapted automatic speed changing device of electric vehicle |
| CN103527678B (en) * | 2013-10-18 | 2016-03-09 | 德州富路车业有限公司 | Centrifugal two-stage automatic transimission |
| CN103644260A (en) * | 2013-12-05 | 2014-03-19 | 重庆钟华机械有限责任公司 | Transmission assembly of fuel tricycle |
| CN103770610B (en) * | 2014-01-24 | 2016-08-17 | 北京阳铭诚科技有限责任公司 | Electrical vehicular power assembly |
| CN104184255B (en) * | 2014-08-28 | 2017-02-15 | 浙江力宝高新建材股份有限公司 | Automatic gear shifting differential motor |
| CN105757210A (en) * | 2016-04-23 | 2016-07-13 | 中国第汽车股份有限公司 | Integrated driving device for two-level electric vehicle |
| CN105966241A (en) * | 2016-06-12 | 2016-09-28 | 北京长城华冠汽车科技股份有限公司 | Electric automobile speed change system and method and electric automobile |
| CN105864422B (en) * | 2016-06-24 | 2018-05-11 | 立马车业集团有限公司 | Arrangement of clutch on power take off |
| TWI655116B (en) | 2017-05-19 | 2019-04-01 | 財團法人工業技術研究院 | A transmission mechanism and one-way assembly thereof |
| TWI665399B (en) * | 2018-05-16 | 2019-07-11 | 財團法人工業技術研究院 | Dual-shaft gearbox mechanism |
| CN108980337B (en) * | 2018-07-10 | 2020-10-16 | 绿传（北京）科技有限公司 | Two-gear automatic transmission and control method thereof |
| CN109707804A (en) * | 2019-03-04 | 2019-05-03 | 上海斐罗工业设计有限公司 | A kind of battery-operated motor cycle two-shift automatic variable speed device |
| TWI799575B (en) * | 2019-04-26 | 2023-04-21 | 光陽工業股份有限公司 | Vehicle dual power control device |
| CN111907638B (en) * | 2019-05-08 | 2023-08-29 | 光阳工业股份有限公司 | Double-power control device for vehicle |
| CN112392922A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Transmission, integrated axle assembly and car |
| CN112392930A (en) * | 2019-08-19 | 2021-02-23 | 比亚迪股份有限公司 | Transmission, two keep off coaxial axle assembly and vehicle |
| DE102020202788B3 (en) * | 2020-03-04 | 2021-04-01 | Magna Pt B.V. & Co. Kg | Drive train for a vehicle and a method for operating a drive train with a two-speed transmission |
| CN111946812B (en) * | 2020-08-27 | 2022-08-12 | 重庆宗申集研机电科技有限公司 | Two keep off gearshift and shift speed change system |
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| CN1143157A (en) * | 1995-05-29 | 1997-02-19 | 株式会社三叶电机制作所 | Engine starter with improved gear assembly |
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| US6447418B1 (en) * | 1999-10-15 | 2002-09-10 | New Venture Gear, Inc. | Variable ratio range set for a transfer case |
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2010
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143157A (en) * | 1995-05-29 | 1997-02-19 | 株式会社三叶电机制作所 | Engine starter with improved gear assembly |
| CN2254414Y (en) * | 1995-09-18 | 1997-05-21 | 吴登贵 | Stepless speed regulating electric automobile |
| US6447418B1 (en) * | 1999-10-15 | 2002-09-10 | New Venture Gear, Inc. | Variable ratio range set for a transfer case |
| CN2526602Y (en) * | 2002-02-26 | 2002-12-18 | 张辉隆 | Improved structure of automatic speed change for gear box of electric vehicle |
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| CN201629631U (en) * | 2010-01-29 | 2010-11-10 | 重庆宗申发动机制造有限公司 | Driving motor of electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-135552A 1997.05.20 |
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| Publication number | Publication date |
|---|---|
| CN101771310A (en) | 2010-07-07 |
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Effective date of registration: 20190509 Address after: 400054 Second Floor of 12 Blocks 126 Yunan Avenue, Banan District, Chongqing Patentee after: Chongqing Zongshen Jiyan Mechanical and Electrical Technology Co.,Ltd. Address before: 400054 Zong Shen industrial park, Banan District, Chongqing Patentee before: CHONGQING ZONGSHEN ENGINE MANUFACTURING Co.,Ltd. |
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