CN207598819U - For the dynamical system of electric vehicle - Google Patents
For the dynamical system of electric vehicle Download PDFInfo
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- CN207598819U CN207598819U CN201721483785.8U CN201721483785U CN207598819U CN 207598819 U CN207598819 U CN 207598819U CN 201721483785 U CN201721483785 U CN 201721483785U CN 207598819 U CN207598819 U CN 207598819U
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Abstract
The utility model discloses a kind of dynamical systems for electric vehicle, including the driving motor, gearbox and differential mechanism being triangularly arranged, the driving motor and differential mechanism are fixedly connected with gearbox, driving motor has motor shaft, in the babinet of gearbox there is input shaft, main shaft and the countershaft being arranged in parallel, connected between the motor shaft and input shaft by yielding coupling；Input shaft driving gear is arranged on the input shaft, main shaft is equipped with the main shaft input gear engaged with the input shaft driving gear, and the input shaft driving gear and main shaft input gear are helical gear.Setting of the utility model by yielding coupling and the improvement to gear structure can significantly reduce vibrating noise and shift shock, have the advantages that stable drive, good reliability, service life is long, help to improve the ride comfort of electric vehicle.
Description
Technical field
The utility model belongs to system of vehicle transmission technical field, is related to a kind of dynamical system for electric vehicle.
Background technology
Increasingly harsh with environmental regulation, the new energy vehicles such as electro-tricycle have been increasingly becoming the favorite in market.But
At present, it is poor that the main constant-speed ratio drive mechanism of the speed changer of electric vehicle, i.e. motor by double reduction gearing are directly connected to rear axle
Fast device, but such speed changer there are problems that electric efficiency and cost can not be taken into account, and as obtain single gear gearbox higher
Electric efficiency, need to put into higher design and manufacture cost.Therefore occurring can be to hand gear that gear is adjusted
Case, mainly based on two grades of gearboxes, but manual transmission easily generates shift shock, motor shaft and transmission input shaft
It misaligns error and easily generates high frequency dynamic loading, the spline of motor shaft and gearbox binding site is caused to damage, in addition gear knot
Structure design is unreasonable, and noise is big, and high-frequency vibration and the transmission internal gear vibration of motor intercouple and can bring more substantially
The exciting of value so that vehicle drive comfort is not good enough.
Utility model content
For solution more than technical problem, the utility model provides a kind of power and transmits steadily, and vibrating noise is smaller to be used for
The dynamical system of electric vehicle.
Its technical solution is as follows：
A kind of dynamical system for electric vehicle, including the driving motor, gearbox and differential mechanism being triangularly arranged, institute
It states driving motor and differential mechanism is fixedly connected with gearbox, driving motor has motor shaft, has in the babinet of gearbox flat
Input shaft, main shaft and the countershaft of row setting, are connected between the motor shaft and input shaft by yielding coupling；
Input shaft driving gear is arranged on the input shaft, main shaft is equipped with the master engaged with the input shaft driving gear
Axis input gear, the input shaft driving gear and main shaft input gear are helical gear.
Using more than structure, connected between motor shaft and transmission input shaft using yielding coupling, the bullet can be utilized
Property shaft coupling damping vibration attenuation characteristic, absorb partial vibration energy, and reduce the eigentone of shafting, prevent danger
Resonance, while the rigging error of motor shaft and transmission input shaft can be absorbed, even if the two centering is not ideal enough, also can
Enough ensure the smooth transfer of power.Input shaft driving gear and main shaft input gear can optimize gearbox using helical teeth structure
In transmission process, the contact condition of the flank of tooth extends service life of gear and reduces vibrating noise, and helping to take into account ensures to be driven
Electric vehicle ride comfort is improved under the premise of efficiency.
Further, spindle mounting hole is equipped in the babinet, main shaft is embedded in the spindle mounting hole, and passes through bearing branch
It holds, the main shaft is arranged with axle sleeve in corresponding shaft bearing installation site, and bearing interference is mounted on the axle sleeve, and main shaft is in axle sleeve side
Axially position baffle ring is arranged with, one side end face of axle sleeve is abutted with the axially position baffle ring, one side end face of main shaft input gear
It is connected on a side end face of the axle sleeve far from axially position baffle ring, another side end face of main shaft input gear is with being set in master
The retainer ring of shaft end abuts.Since input shaft driving gear and main shaft input gear use helical teeth structure, in transmission process,
Main shaft input gear, for thrust is avoided to be directly delivered on main shaft, will certainly be influenced speed change by a degree of axial thrust
Case works, and axial thrust can be transferred to babinet by above structure by axle sleeve and axially position baffle ring by bearing, to ensure
Gearbox smooth working.
Further, the one end of the input shaft far from yielding coupling is installed with end face clutch, input shaft driving tooth
Kink is taken turns on input shaft, there are multiple convex blocks protruded axially outward close to a side end face of end face clutch, it is described
Convex block, which is uniformly distributed circumferentially between the axis hole outer of input shaft driving gear, adjacent projections, forms groove, the end face from
Driving gear housing is installed, which has opposite with the input shaft driving gear upper protruding block in clutch
The notch answered, when the end face clutch combines, driving gear housing can be mutually chimeric with input shaft driving gear, will be defeated
Enter axis power to be transmitted on main shaft by input shaft driving gear, when end face clutch disconnects, driving gear housing and input shaft
Driving gear is separated from each other, and is transmitted so as to cut off the power between input shaft and main shaft, convenient for shifting gears between major-minor axis
Action ensures smooth gear shifting, and such layout structure, i.e., end face clutch is installed on input shaft one end, makes gearbox
Overall structure is compacter, improves gearbox space availability ratio.
For convenience of end face clutch is manipulated, clutch control machine is being equipped with close to the side of end face clutch in the babinet
Structure.
Further, the yielding coupling includes the left body of shaft coupling of face setting and the right body of shaft coupling and is embedded
Flexible buffer body between the left body of the shaft coupling and the right body of shaft coupling, the left body of the shaft coupling are solidly set on motor shaft, shaft coupling
The right body of device is connected with input shaft one end.Using the yielding coupling of the structure, motor shaft and gearbox input can effectively ensure that
Power between axis transmits, and passes through the reasonable choosing to the yielding coupling especially rigidity value of flexible buffer body and damping value
Take, can high degree improve transmission internal gear vibration, extend gearbox service life.
For convenience of being connect with differential mechanism, the babinet of the gearbox is connected in corresponding differential mechanism installation site equipped with differential mechanism
Flange, the babinet are surrounded by the left box body and right case mutually fastened, are set to avoid ring flange equally is also divided into two halves
It puts, mould assembling rear stub is caused to influence differential mechanism there are installation error and is installed, and then unfavorable shadow is brought to gearbox transmission process
It rings, the differential mechanism connecting flange and left box body or right case are integrally formed, to ensure being reliably connected for gearbox and differential mechanism.
Advantageous effect：
Using the dynamical system for electric vehicle of above technical scheme, by the setting of yielding coupling and to gear
The improvement of structure can significantly reduce vibrating noise and shift shock, excellent with stable drive, good reliability, service life length etc.
Point helps to improve the ride comfort of electric vehicle.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of gearbox in the utility model；
Fig. 3 is the structure diagram of the utility model middle case；
Fig. 4 is the mounting structure schematic diagram of end face clutch and input shaft driving gear in the utility model；
Fig. 5 is the structure diagram of input shaft driving gear in the utility model；
Fig. 6 is the right view of Fig. 5；
Fig. 7 is the structure diagram of driving gear housing in the utility model；
Fig. 8 is the mounting structure schematic diagram of main shaft in the utility model.
Specific embodiment
The utility model is described in further detail with attached drawing with reference to embodiments.
Dynamical system for electric vehicle as shown in Figure 1, including driving motor 1, gearbox 2 and differential mechanism 3, three
It is triangularly arranged, driving motor 1 and differential mechanism 3 are fixedly arranged on 2 left side of gearbox and downside, the layout type in figure and cause respectively
Installation of the dynamical system on electric vehicle especially tricycle is more flexible, and occupied space is relatively small, improves space utilization
Rate.
Fig. 2 shows the concrete structures of gearbox, and including babinet 21, input shaft is rotatably mounted in babinet 21
4th, main shaft 5 and countershaft 6, input shaft 4, main shaft 5 and countershaft 6, in being arranged in parallel, are arranged with defeated in 21 space of babinet on input shaft 4
Enter axis driving gear 41, the main shaft input gear 51 engaged with the input shaft driving gear 41 is installed on main shaft 3, in main shaft 5
Be also arranged on countershaft 5 for perform shift operation gear set.
Driving motor 1 has motor shaft 11, is connected between motor shaft 11 and input shaft 4 by yielding coupling 7, to transmit
Power.
Yielding coupling 7 includes the left body 71 of shaft coupling of face setting and the right body 72 of shaft coupling and is embedded in the shaft coupling
Flexible buffer body 73 between the left body 71 of device and the right body 72 of shaft coupling, the left body 71 of shaft coupling are solidly set on motor shaft 11, shaft coupling
Right body 72 is fixedly connected with 2 one end of input shaft, and the modes such as spline fitted may be used in connection mode.
The one end of input shaft 4 far from yielding coupling 7 is installed with end face clutch 8, when needing to manipulate shift, to disconnect
Power between input shaft 4 and main shaft 5 transmits.
With reference to Fig. 3 as can be seen that left box body 21a and right case 21b that babinet 21 is mainly mutually fastened by left and right are mutually detained
Close, end face clutch 8 is set in one end that main shaft 4 is pierced by right case 21b, i.e., end face clutch 8 be located at left box body 21a and
Right case 21b surrounds the outside in space, and passes through case lid 21c and close, and is additionally provided with to manipulate end face clutch on case lid 21c
The clutch operating device 82 of device 8.
For convenience of connected with differential 3, differential mechanism connecting flange 2c is additionally provided in 21 lower end of babinet, the differential mechanism connecting flange
2c is integrally molded with left box body 21a, to facilitate processing and assembling, and ensures to be completed rear flange face in babinet 21
Installation accuracy, similarly, differential mechanism connecting flange 2c can also be integrally formed with right case 21b.
Fig. 4 shows end face clutch 8, input shaft driving gear 41 and input shaft 4 and the specific mounting structure of babinet 21,
Input shaft driving gear 21 be kink on input shaft 2, can produce relative rotation with input shaft 2.
It can be seen that the clutch function in order to realize end face clutch 8, input shaft driving gear with reference to Fig. 5, Fig. 6 and Fig. 7
41 are being equipped with 4 convex block 41a protruded axially outward close to a side end face of end face clutch 8, and convex block 41a is along input shaft master
41 central shaft hole outer of moving gear is distributed in circle ring array, formation groove 41b between adjacent projections 41a, on end face clutch 8
Driving gear housing 81 is installed, which has opposite with 41 upper protruding block 41a of input shaft driving gear
The notch 81a answered, when end face clutch 8 is in bonding state, driving gear housing 81 can be acted in the end face clutch 8
Lower mutually chimeric with input shaft driving gear 41, i.e., by driving gear housing 81, into figure, left side pushes, and makes convex block 41a insertions pair
In the notch 81a answered, so as to make input shaft driving gear 41 and 4 synchronous rotary of input shaft, the power of input shaft 4 is passed into master
Axis 5.
When end face clutch 8 is off, driving gear housing 81 is right into figure under the drive of end face clutch 8
Side resets, and is disengaged from 41 nested position of input shaft driving gear, and input shaft driving gear 41 can be relative to input shaft 4 certainly
By rotating, so as to which input shaft 4 and main shaft 5 be disconnected.Outside 41 upper protruding block 41a of input shaft driving gear, groove 41b and driving gear
The quantity of notch 81a on set 81 can be set according to actual needs, to ensure to combine smooth be advisable.
In order to make transmission process more steady, input shaft driving gear 41 and main shaft input gear 51 use helical gear knot
Structure.
Fig. 8 is please referred to, is equipped with spindle mounting hole 2a in babinet 21, main shaft 4 is threaded through in spindle mounting hole 2a, and is led to
Bearing 2b bearings are crossed, main shaft 5 is arranged with axle sleeve 52, inner ring and the 52 outer wall mistake of axle sleeve of bearing 2b in corresponding bearing 2a positions
It is full of cooperation, main shaft 5 is also arranged with positioning retainer ring 53 in 52 side of axle sleeve, and main shaft 5 is equipped with and the 53 corresponding card of positioning retainer ring
Slot or shaft shoulder structure, to limit the axial displacement of positioning retainer ring 53, it is remote that 51 left end face of main shaft input gear is connected to axle sleeve 52
From on a side end face of positioning retainer ring 53,51 right end face of main shaft input gear is abutted with being embedded at the retainer ring 54 of 5 right end of main shaft,
To carry out axially position to main shaft input gear 51 by axle sleeve 52, positioning retainer ring 53 and retainer ring 54, by it since helical teeth engages
The axial thrust born passes to babinet 21, to improve the reliability of gearbox 2.
Finally it should be noted that foregoing description is only the preferred embodiment of the utility model, the common skill of this field
Art personnel under the premise of without prejudice to the utility model aims and claim, can make under the enlightenment of the utility model
Expression, such transformation are each fallen within the scope of protection of the utility model as multiple types.
Claims (6)
1. a kind of dynamical system for electric vehicle, including the driving motor (1), gearbox (2) and differential being triangularly arranged
Device (3), the driving motor (1) and differential mechanism (3) are fixedly connected with gearbox (2), and driving motor (1) has motor shaft
(11), there is input shaft (4), main shaft (5) and the countershaft (6) being arranged in parallel in the babinet (21) of gearbox (2), feature exists
In：It is connect between the motor shaft (11) and input shaft (4) by yielding coupling (7)；
Input shaft driving gear (41) is arranged on the input shaft (4), main shaft (5) is equipped with and the input shaft driving gear
(41) the main shaft input gear (51) of engagement, the input shaft driving gear (41) and main shaft input gear (51) are helical teeth
Wheel.
2. the dynamical system according to claim 1 for electric vehicle, it is characterised in that：Master is equipped in the babinet (21)
Shaft mounting hole (2a), main shaft (5) are embedded in the spindle mounting hole (2a), and pass through bearing (2b) bearing, and the main shaft (5) is right
Bearing (2b) installation site is answered to be arranged with axle sleeve (52), bearing (2b) interference is mounted on the axle sleeve (52), and main shaft (5) is in axle sleeve
(52) side is arranged with axially position baffle ring (53), and (52) one side end face of axle sleeve is abutted with the axially position baffle ring (53),
(51) one side end face of main shaft input gear is connected on a side end face of the axle sleeve (52) far from axially position baffle ring (53), main
Another side end face of axis input gear (51) is abutted with being set in the retainer ring (54) of main shaft (5) end.
3. the dynamical system according to claim 1 for electric vehicle, it is characterised in that：The input shaft (4) is far from bullet
One end of property shaft coupling (7) is installed with end face clutch (8), and input shaft driving gear (41) kink leans on input shaft (4)
One side end face of proximal end face clutch (8) has multiple convex blocks (41a) protruded axially outward, and the convex block (41a) is along week
To the axis hole outer for being evenly distributed on input shaft driving gear (41), groove (41b) is formed between adjacent projections (41a), it is described
Driving gear housing (81) is installed, which has and the input shaft on end face clutch (8)
Driving gear (41) upper protruding block (41a) corresponding notch (81a), when the end face clutch (8) combines, outside driving gear
Covering (81) can be mutually chimeric with input shaft driving gear (41).
4. the dynamical system according to claim 3 for electric vehicle, it is characterised in that：The babinet (21) is by proximal end
The side of face clutch (8) is equipped with clutch operating device (82).
5. the dynamical system according to claim 1 for electric vehicle, it is characterised in that：Yielding coupling (7) packet
It includes the left body of shaft coupling (71) of face setting and the right body of shaft coupling (72) and is embedded in the left body of the shaft coupling (71) and shaft coupling
Flexible buffer body (73) between right body (72), the left body of shaft coupling (71) are solidly set on motor shaft (11), the right body of shaft coupling
(72) it is connected with input shaft (4) one end.
6. the dynamical system according to any one of claim 1 to 5 for electric vehicle, it is characterised in that：The speed change
The babinet (21) of case (2) is equipped with differential mechanism connecting flange (2c) in corresponding differential mechanism (3) installation site, and the babinet (21) is by mutual
The left box body (21a) and right case (21b) of fastening surround, the differential mechanism connecting flange (2c) and left box body (21a) or
Right case (21b) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483785.8U CN207598819U (en) | 2017-11-08 | 2017-11-08 | For the dynamical system of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483785.8U CN207598819U (en) | 2017-11-08 | 2017-11-08 | For the dynamical system of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598819U true CN207598819U (en) | 2018-07-10 |
Family
ID=62757822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721483785.8U Expired - Fee Related CN207598819U (en) | 2017-11-08 | 2017-11-08 | For the dynamical system of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869557A (en) * | 2017-11-08 | 2018-04-03 | 西南大学 | Power system of electric automobile |
-
2017
- 2017-11-08 CN CN201721483785.8U patent/CN207598819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107869557A (en) * | 2017-11-08 | 2018-04-03 | 西南大学 | Power system of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180710 Termination date: 20201108 |