CN103016644A - Three-gear transmission of electric vehicle - Google Patents

Three-gear transmission of electric vehicle Download PDF

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Publication number
CN103016644A
CN103016644A CN 201210524448 CN201210524448A CN103016644A CN 103016644 A CN103016644 A CN 103016644A CN 201210524448 CN201210524448 CN 201210524448 CN 201210524448 A CN201210524448 A CN 201210524448A CN 103016644 A CN103016644 A CN 103016644A
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CN
China
Prior art keywords
gear
power input
speed
pto
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201210524448
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Chinese (zh)
Inventor
蒋辉
王吉龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Longwang Electromechanical Co Ltd
Original Assignee
Chongqing Longwang Electromechanical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Longwang Electromechanical Co Ltd filed Critical Chongqing Longwang Electromechanical Co Ltd
Priority to CN 201210524448 priority Critical patent/CN103016644A/en
Publication of CN103016644A publication Critical patent/CN103016644A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a three-gear transmission of an electric vehicle. The transmission of the electric vehicle is the three-gear transmission. By using the three-gear transmission, power output is reasonably allocated when the electric vehicle runs on flat grounds and climbs slopes. Compared with a two-gear transmission, the combination among gears is further enabled to be smooth and stable, the power consumption during slope climbing is reduced, the power of a motor is fully utilized during running on the flat grounds, the running and the gear shifting of the electric vehicle are enabled to be more stable and smooth, the goals of saving energy and protecting the environment are achieved and the use cost is decreased at the same time.

Description

The electric motor car three-speed gearbox
Technical field
The present invention relates to a kind of automotive component, particularly a kind of electric motor car three-speed gearbox.
Background technique
Electric motor car (two-wheeled, three-wheel and electric vehicle) travels take vehicle-mounted power accumulator as the motivational drive electric vehicle, because that electric motor car has energy-saving and environmental protection is light, and cost of use is lower, more and more comes into one's own.
Electric motor car generally comprises power supply, motor, speed changer, walking assembly and control system, because the operation characteristic of motor, the speed changer of electric motor car does not generally adopt a grade speed change, directly comes regulation speed by the regulating and controlling motor speed; And for the larger uphill way of output torque, utilize existing single speed changer structure, can only increase the purpose that electric weight output reaches climbing, then can cause the more waste of electric weight, and, because the more level land of considering of speed changer structure travels, thereby, it is unsatisfactory for the effect that climbing reaches to increase electric weight output, even sometimes the motor rotation blockage phenomenon can occur.
Therefore, need to improve existing electric vehicle transmission, employing has the speed variator system of shelves, make electric motor car rational allocation power output when level land and climbing, compared with prior art, the power consumption when reducing to climb takes full advantage of motor power during the level land, when reaching energy-conserving and environment-protective, reduce user cost.
Summary of the invention
In view of this, the invention provides a kind of electric motor car three-speed gearbox, employing has the speed variator system of shelves, make electric motor car rational allocation power output when level land and climbing, compared with prior art, the power consumption when reducing to climb takes full advantage of motor power during the level land, when reaching energy-conserving and environment-protective, reduce user cost.
Electric motor car three-speed gearbox of the present invention, described speed changer are three-speed gearbox.
Further, three-speed gearbox comprises housing, power input shaft, pto=power take-off, jack shaft, power input driving gear, power input driven gear, one grade of driving gear, first speed driven gear, third speed drive gear and third gear driven gear, and described pto=power take-off and jack shaft are respectively being arranged at housing around the mode that self axis rotates; The transmission of described power input driving gear is equipped with in power input shaft, the transmission of power input driven gear is equipped with in jack shaft, described one grade of driving gear and third speed drive gear are arranged at jack shaft, and first speed driven gear and third gear driven gear are arranged at pto=power take-off; So that being meshed, the mode of cutting off between jack shaft and the pto=power take-off or engaging forms one grade of Transmitted chains between described one grade of driving gear and the first speed driven gear; Cooperate in the mode that can cut off or engage between described power input shaft and the pto=power take-off and form the second gear Transmitted chains; So that being meshed, the mode of cutting off between jack shaft and the pto=power take-off or engaging forms the third gear Transmitted chains between described third speed drive gear and the third gear driven gear.
Further, the three class gear shift transmission system comprises that also the mode with the circumferencial direction transmission that can endwisely slip is coated at the first gearshift coupling of pto=power take-off and is coated at the second gearshift coupling of jack shaft in the mode of the circumferencial direction transmission that can endwisely slip, described one grade of driving gear transmission is equipped with in jack shaft, first speed driven gear is set in rotation with pto=power take-off, and described the first gearshift coupling engages or disconnection power input shaft or first speed driven gear by endwisely slipping between power input shaft and first speed driven gear; Third speed drive gear is set in rotation with jack shaft, and the transmission of third gear driven gear is equipped with in pto=power take-off, and the second gearshift coupling engages by endwisely slipping or the disconnection third speed drive gear;
Further, described power input shaft and the coaxial setting of pto=power take-off, described power input driving gear and power input shaft are integrally formed, and described power input driving gear is provided with the axle bed counterbore vertically, and described pto=power take-off inner end coaxial rotation cooperation is supported in the axle bed counterbore;
Further, speed changer also comprises the power input assembly that the mode that power switches with positive and negative both direction can be inputed to power input shaft;
Further, electric motor car is three-wheeled electric vehicle;
Further, described power input assembly is positioned at housing, described power input driving gear radially is provided with the lubricated through hole that is communicated with the axle bed counterbore along it, be axially arranged with for the minor axis neck by the axle bed counterbore along it, described minor axis neck transmission cooperates and is provided with and is provided with along its end face for the second gear soldered tooth that engages or disconnect with the first gearshift coupling;
Further, described power input assembly is provided with the power intake that extends housing; Described pto=power take-off is provided with the clutch end that extends housing.
Beneficial effect of the present invention: electric motor car three-speed gearbox of the present invention, adopt the speed changer of three mark structures, make electric motor car rational allocation power output when level land and climbing, compare with two mark structures, further make the joint between gear smooth and easy steadily, the power consumption when reducing to climb, take full advantage of motor power during the level land, so that electric motor car travels and gear shift steady and smooth more, when reaching energy-conserving and environment-protective, reduce user cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, and as shown in the figure: the electric motor car three-speed gearbox of present embodiment, described speed changer are three-speed gearbox; This three-speed gearbox can for any three class gear shift structure of the prior art, be applied to electric motor car.
In the present embodiment, three-speed gearbox comprises housing 13, power input shaft 1, pto=power take-off 6, jack shaft 11, power input driving gear 2, power input driven gear 12, one grade of driving gear 10, first speed driven gear 4, third speed drive gear 7 and third gear driven gear 5, as shown in the figure, power input shaft 1, pto=power take-off 6, jack shaft 11, power input driving gear 2, power input driven gear 12, one grade of driving gear 10, first speed driven gear 4, third speed drive gear 7 and third gear driven gear 5 are positioned at housing 13; Described pto=power take-off 1 and jack shaft 11 are respectively being arranged at housing 13 around the mode that self axis rotates; 2 transmissions of described power input driving gear are equipped with in power input shaft 1,12 transmissions of power input driven gear are equipped with in jack shaft 11, described one grade of driving gear 10 and third speed drive gear 7 are arranged at jack shaft 11, and first speed driven gear 4 and third gear driven gear 5 are arranged at pto=power take-off 6; So that being meshed, the mode of cutting off between jack shaft 11 and the pto=power take-off 6 or engaging forms one grade of Transmitted chains between described one grade of driving gear 10 and the first speed driven gear 4; Cooperate in the mode that can cut off or engage between described power input shaft 1 and the pto=power take-off 6 and form the second gear Transmitted chains; So that being meshed, the mode of cutting off between jack shaft 11 and the pto=power take-off 6 or engaging forms the third gear Transmitted chains between described third speed drive gear 7 and the third gear driven gear 5; The second gear Transmitted chains adopts gearless directly to transmit the structure of output, and efficient is higher, takes full advantage of the arrangement relation between all parts, and third gear output only needs two groups of gears to get final product, so that reach preferably transmission effect when compact structure.
In the present embodiment, the three class gear shift transmission system comprises that also the mode with the circumferencial direction transmission that can endwisely slip is coated at the first gearshift coupling 3 of pto=power take-off 6 and is coated at the second gearshift coupling 9 of jack shaft 11 in the mode of the circumferencial direction transmission that can endwisely slip, described one grade of driving gear 10 transmission are equipped with in jack shaft 11, first speed driven gear rotates 4 and is equipped with in pto=power take-off 6, and described the first gearshift coupling 3 engages or disconnection power input shaft 1 or first speed driven gear 4 by endwisely slipping between power input shaft 1 and first speed driven gear 4; Third speed drive gear 7 is set in rotation with jack shaft 11, and 5 transmissions of third gear driven gear are equipped with in pto=power take-off 6, the second gearshift couplings 9 and engage by endwisely slipping or disconnection third speed drive gear 7; Adopt the first gearshift coupling 3 and the second gearshift coupling 9 to be divided into the structure of two axles arranged side by side, can shorten the length of whole speed changer, do not increase transverse dimension, further increase flexibility of the present invention and general applicability, so that the three class gear shift system can be applied to light electric vehicle, such as three-wheeled electric vehicle or electric motor car with two wheels.
In the present embodiment, electric motor car is three-wheeled electric vehicle; The present invention is little owing to volume, compact structure and light, thereby be applicable to preferably three-wheeled electric vehicle.
In the present embodiment, described power input shaft 1 and pto=power take-off 6 coaxial settings, described power input driving gear 2 is integrally formed with power input shaft 1, described power input driving gear 2 is provided with axle bed counterbore 2a vertically, described pto=power take-off 6 inner end coaxial rotation cooperation is supported in the axle bed counterbore 2a end of namely stretching to housing 13 interior edges; Simple and compact for structure, simultaneously, mutual support reduces vibration so that power input shaft and pto=power take-off are stable; Simultaneously, so that the present invention can directly apply to three-wheeled electric vehicle and four-wheel electric motor car, have preferably integrated performance and sealability.
In the present embodiment, three-speed gearbox also comprises the power input assembly, and described power input assembly can input to power input shaft 1 in the mode that positive and negative both direction switches with power; The power input assembly can adopt the gear train transmission to realize above-mentioned purpose, and the mode that can switch that namely realizes moving forward and backward inputs to pto=power take-off with power; Said structure of the present invention is so that reverse gear also has the third gear drive mechanism, and speed changer can be shared by reverse gear mechanism and forward gears mechanism, realizes the afterburning or acceleration of reverse gear.
In the present embodiment, described power input assembly is positioned at housing 13, and is simple and compact for structure, has preferably integrity and sealing; Described power input driving gear 2 radially is provided with the lubricated through hole 2b that is communicated with axle bed counterbore 2a along it, be axially arranged with for the minor axis neck 2c by axle bed counterbore 2b along it, described minor axis neck 2c transmission cooperates and is provided with and is provided with along its end face for the second gear soldered tooth that engages or disconnect with the first gearshift coupling 3; Simple and compact for structure, easy to operate.
Below for a kind of embodiment of medium power input assembly of the present invention, the power input assembly comprises power input bevel gear 15, reverse gear bevel gear 16 and forward gears bevel gear 14, described reverse gear bevel gear 16 and forward gears bevel gear 14 all with 15 engagements of power input bevel gear, described reverse gear bevel gear 16 and forward gears bevel gear 14 are coated at power input shaft with the mode that can mutually switch and the mode of power input shaft 1 transmission; Adopt the structure of bevel gear input, can reduce the quantity of gear as far as possible, make power input assembly compact overall structure simple, volume is little, and is comparatively light, is suitable for the roadster uses such as three-wheeled electric vehicle.
In the present embodiment, between reverse gear bevel gear 16 and forward gears bevel gear 14, be coated at power input shaft and be provided with the 3rd gearshift coupling 17, described the 3rd gearshift coupling 17 is axially slidably cooperating in the circumferencial direction transmission with power input shaft 1, and can engage respectively transmission with reverse gear bevel gear 16 or forward gears bevel gear 14; As shown in the figure, the 3rd gearshift coupling 17 is provided with external tooth, reverse gear bevel gear 16 and forward gears bevel gear 14 be respectively equipped with can with the internal tooth of this external tooth engagement, the 3rd gearshift coupling 17 is neutral position when the centre, and axially slip is then finished and the engaging and transmission of reverse gear bevel gear 16 or forward gears bevel gear 14 under external force drives; Certainly, soldered tooth and juncture that the 3rd gearshift coupling 17, reverse gear bevel gear 16 and forward gears bevel gear 14 are equipped with necessary joint transmission all belong to prior art, do not repeat them here; Adopt the structure realization of the 3rd gearshift coupling, reverse gear bevel gear and forward gears bevel gear shifted, simple and compact for structure, fabricating cost is low, be applicable to light electric motor car, be beneficial to the relative reduce integral vehicle cost, and compare with existing electric motor car, cost there is no more increase.
In the present embodiment, described power input assembly is provided with integrally formed with power input bevel gear 15 and extends the power intake of housing; Described pto=power take-off 6 is provided with the clutch end that extends housing.
In the present embodiment, as shown in the figure, third speed drive gear 7 and first speed driven gear 4 are set in rotation with jack shaft 11 and pto=power take-off 6 by corresponding needle bearing (needle bearing 8 and needle bearing 18) respectively, compact structure, rotational stability is good, is suitable for stablizing smooth and easy and vibrates little transmission.
Among the present invention, annular bearing with rolling contact by necessity between power input shaft 1, jack shaft 11 and pto=power take-off 6 and the housing 13 is rotatably assorted, as shown in the figure, power input shaft 1 also is rotatably assorted by rolling bearing with the ribs of housing 13 interior settings, belong to the cooperating structure of prior art, do not repeat them here; Among the present invention, transmission cooperates the mode that refers to transferring power to cooperate, and comprises engagement driving, spline drived cooperation etc.
Among the present invention, the first gearshift coupling 3, the second gearshift coupling 9 and the 3rd gearshift coupling 17 all can adopt the synchronizer structure of prior art, belong to prior art, do not repeat them here.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (8)

1. electric motor car three-speed gearbox, it is characterized in that: described speed changer is three-speed gearbox.
2. electric motor car three-speed gearbox according to claim 1, it is characterized in that: three-speed gearbox comprises housing, power input shaft, pto=power take-off, jack shaft, power input driving gear, power input driven gear, one grade of driving gear, first speed driven gear, third speed drive gear and third gear driven gear, and described pto=power take-off and jack shaft are respectively being arranged at housing around the mode that self axis rotates; The transmission of described power input driving gear is equipped with in power input shaft, the transmission of power input driven gear is equipped with in jack shaft, described one grade of driving gear and third speed drive gear are arranged at jack shaft, and first speed driven gear and third gear driven gear are arranged at pto=power take-off; So that being meshed, the mode of cutting off between jack shaft and the pto=power take-off or engaging forms one grade of Transmitted chains between described one grade of driving gear and the first speed driven gear; Cooperate in the mode that can cut off or engage between described power input shaft and the pto=power take-off and form the second gear Transmitted chains; So that being meshed, the mode of cutting off between jack shaft and the pto=power take-off or engaging forms the third gear Transmitted chains between described third speed drive gear and the third gear driven gear.
3. electric motor car three-speed gearbox according to claim 2, it is characterized in that: the three class gear shift transmission system comprises that also the mode with the circumferencial direction transmission that can endwisely slip is coated at the first gearshift coupling of pto=power take-off and is coated at the second gearshift coupling of jack shaft in the mode of the circumferencial direction transmission that can endwisely slip, described one grade of driving gear transmission is equipped with in jack shaft, first speed driven gear is set in rotation with pto=power take-off, and described the first gearshift coupling engages or disconnection power input shaft or first speed driven gear by endwisely slipping between power input shaft and first speed driven gear; Third speed drive gear is set in rotation with jack shaft, and the transmission of third gear driven gear is equipped with in pto=power take-off, and the second gearshift coupling engages by endwisely slipping or the disconnection third speed drive gear.
4. electric motor car three-speed gearbox according to claim 3, it is characterized in that: described power input shaft and the coaxial setting of pto=power take-off, described power input driving gear and power input shaft are integrally formed, described power input driving gear is provided with the axle bed counterbore vertically, and described pto=power take-off inner end coaxial rotation cooperation is supported in the axle bed counterbore.
5. electric motor car three-speed gearbox according to claim 4 is characterized in that: three-speed gearbox also comprises the power input assembly that the mode that power switches with positive and negative both direction can be inputed to power input shaft.
6. according to claim 1 to the described electric motor car three-speed gearbox of 5 arbitrary claims, it is characterized in that: electric motor car is three-wheeled electric vehicle.
7. electric motor car three-speed gearbox according to claim 6, it is characterized in that: described power input assembly is positioned at housing, described power input driving gear radially is provided with the lubricated through hole that is communicated with the axle bed counterbore along it, be axially arranged with for the minor axis neck by the axle bed counterbore along it, described minor axis neck transmission cooperates and is provided with and is provided with along its end face for the second gear soldered tooth that engages or disconnect with the first gearshift coupling.
8. electric motor car three-speed gearbox according to claim 7, it is characterized in that: described power input assembly is provided with the power intake that extends housing; Described pto=power take-off is provided with the clutch end that extends housing.
CN 201210524448 2012-12-07 2012-12-07 Three-gear transmission of electric vehicle Pending CN103016644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210524448 CN103016644A (en) 2012-12-07 2012-12-07 Three-gear transmission of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210524448 CN103016644A (en) 2012-12-07 2012-12-07 Three-gear transmission of electric vehicle

Publications (1)

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CN103016644A true CN103016644A (en) 2013-04-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821881A (en) * 2014-03-04 2014-05-28 李红波 Electric bicycle gear shifting mechanism
CN104527454A (en) * 2015-01-22 2015-04-22 天津小刀电动科技股份有限公司 Three-gear controller for electric vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103821881A (en) * 2014-03-04 2014-05-28 李红波 Electric bicycle gear shifting mechanism
CN103821881B (en) * 2014-03-04 2016-06-01 重庆绿华电动车有限公司 Power truck gearshift mechanism
CN104527454A (en) * 2015-01-22 2015-04-22 天津小刀电动科技股份有限公司 Three-gear controller for electric vehicle

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Application publication date: 20130403