CN105065654B - A kind of electric vehicle two speed transmission - Google Patents
A kind of electric vehicle two speed transmission Download PDFInfo
- Publication number
- CN105065654B CN105065654B CN201510417410.0A CN201510417410A CN105065654B CN 105065654 B CN105065654 B CN 105065654B CN 201510417410 A CN201510417410 A CN 201510417410A CN 105065654 B CN105065654 B CN 105065654B
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- Prior art keywords
- gear
- selecting
- gear selecting
- speed
- shift
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K20/00—Arrangement or mounting of change-speed gearing control devices in vehicles
- B60K20/02—Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
Abstract
The invention discloses a kind of two shift transmissions of electric vehicle, including driving mechanism, deceleration mechanism, gearshift, gear selection mechanism, gear shifting actuating mechanism and control module, the gearshift includes block selecting spline (14), shifting shaft (5), top gear gear (6) and bottom gear gear (8), the gear selection mechanism includes block selecting and dials slotting (15), block selecting pull rod (16), block selecting gear (17), block selecting component (18), gear positions cam (19) and apical tooth spring (25), the present invention is using electronic gearshift instead of manually shifting gears, it is more convenient gearshift.
Description
Technical field
A kind of two speed transmission available in electric vehicle purposes belongs to electric vehicle variable speed drives and drive technology field.
Background technology
For motor is made to be operated in high efficient district as much as possible, the application for equipping the electric vehicle of speed changer is just increasing.It is but existing
The electric automobiles such as some electro-tricycles, electric vehicle take hand pulling type shifting apparatus more.This will lead to following several ask
Topic：
1st, existing electric vehicle hand pulling type shifting apparatus, without synchronization action in gearshift procedure, this will cause in gearshift procedure
The problems such as tooth, impact, pause and transition in rhythm or melody, noise are beaten in appearance, and it be easy to cause the damage of gear or gearbox.
2nd, existing electric vehicle hand pulling type shifting apparatus, gear-shifting actuating mechanism are made of mechanisms such as bracing wire, springs, and can not be sentenced
In place whether disconnected gear shift, will cause for a long time, and the purely mechanic mechanism aging such as bracing wire, spring or loosening cause driving process
In it is out of supply or change and do not perform.
3rd, existing electric vehicle hand pulling type shifting apparatus needs to realize locking gear level by brute spring, in driving process
In, it is susceptible to and hangs motionless shelves or miss Shift gear moment during going up a slope.
4th, existing electric vehicle hand pulling type shifting apparatus without clutch apparatus, can not be accomplished in power in gearshift procedure
The linking of disconnected or power.Therefore in During manual operation, need more manual strength, this undoubtedly influence vehicle handling and
Driving experience.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of electric vehicle two speed transmission,
Gear shift can more easily be realized, and improve the service life of speed changer by being mounted with the electric vehicle of this speed changer.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of electric vehicle two speed transmission is performed including driving mechanism, deceleration mechanism, shift mechanism, gear selection mechanism, gear shift
Mechanism, signal acquisition mechanism and control module, wherein：
The driving mechanism is used to control electric vehicle rotating speed according to control module, and the rotating speed is passed to deceleration mechanism；
Rotating speed after reduction is passed to shift mechanism by the deceleration mechanism for the reduction to driving mechanism rotating speed；
The control module is used to control the operation of gear-shifting actuating mechanism and driving mechanism；
The gear-shifting actuating mechanism is according to the control of control module, driving gear selection mechanism progress high and low shift gear selecting；
The gear selection mechanism is used to carry out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and passing to institute's gear selecting into
Shift mechanism；
The rotating speed that deceleration mechanism transmits is passed to output terminal wheel by the shelves that the shift mechanism is chosen according to gear selection mechanism
Tire.
Driving mechanism includes driving motor (31), driving motor input shaft (13) and driving motor input gear (11),
It is sequentially connected between the driving motor (31) and driving motor input gear (11) by driving motor input shaft (13)；
The deceleration mechanism includes deboost axle input gear (10), deboost axle (12), low or first gear input gear (9) and height
Fast shelves input gear (7), the deboost axle input gear (10) are fixedly mounted on deboost axle (12), and the driving motor is defeated
Enter gear (11) and often engage connection with deboost axle input gear (10)；The low or first gear input gear (9) by the first spline with
Deboost axle (12) is fixedly connected, and top gear input gear (7) integrally links with deboost axle (12) and is fixed together；It is or described
Top gear input gear (7) is fixedly connected by the first spline with deboost axle (12), and low or first gear input gear (9) and deboost axle
(12) one linkage is fixed together；
The shift mechanism includes gear selecting spline (14), selector shaft (5), high speed gear (6) and bootom gear (8),
Selector shaft output gear (4) is provided on the selector shaft (5), and the high speed gear (6) and bootom gear (8) are with changing
Shelves axis (5) limits connection and rotatable by clamp spring gasket, while the gear selecting spline (14) is placed in high speed gear (6) and low
Between fast shelves gear (8) and pass through spline and connect with selector shaft (5), and can slide axially, top gear input gear (7) with it is high
The often engagement connection of fast shelves gear (6)；Low or first gear input gear (9) often engages connection with bootom gear (8)；Gear selecting spline (14)
It is engaged with high speed gear (6) by the pulling of gear selecting group slotting (15) or is engaged with bootom gear (8)；
The gear selection mechanism include gear selecting dial insert (15), gear selecting pull rod (16), gear selecting gear (17), gear selecting component (18),
Gear positions cam (19) and apical tooth spring (25), the gear selecting pull rod (16) are equipped with gear selecting and dial slotting location hole successively in an axial direction
(164), the first spacing shim (30), limit card slot (161), helical pitch slot (162), limit hole (163)；The gear selecting, which is dialled, inserts (15)
Slotting location hole (164) is dialled by gear selecting to be connected to a fixed with gear selecting pull rod (16), while the gear selecting is dialled and inserts (15) and the first limit
Gear shift spring (24) is provided with, and the gear shift spring (24) is sleeved on gear selecting pull rod 16 between position gasket (30), and described the
One spacing shim (30) is fixedly connected on shell (1)；The gear selecting gear (17), gear selecting component (18), gear positions cam
(19) and apical tooth spring (25) is sequentially sleeved on the gear selecting pull rod (16) of the first spacing shim (30) opposite side；And the gear selecting
Split pin (29) is installed in the limit hole (163) of pull rod (16), is set between the apical tooth spring (25) and split pin (29)
There is the second spacing shim (28)；The gear positions cam (19) is axially moved along helical pitch slot (162), and it deviates from apical tooth bullet
The extreme position of spring (25) movement is limit card slot (161)；The gear selecting gear (17) and one end of gear selecting component (18) are fixed
Connection, and the gear selecting gear (17) rotates in a circumferential direction along gear selecting pull rod 16；Simultaneously the gear selecting component (18) the other end along
Gear positions cam (19) circumferentially rotates connection；
The gear-shifting actuating mechanism includes the step electric machine (22), reduction box (21) and the gear shifting motor that are sequentially connected successively
Output gear (20), and the gear shifting motor output gear (20) and gear selecting gear (17) are connected by meshing transmission；
The control module controls step electric machine (22) to pass to choosing by gear shifting motor output gear (20) according to shift signal
Shelves gear (17), gear selecting gear (17) drive gear selecting component (18) to rotate clockwise；Gear selecting component (18) is along gear positions cam
(19) apparent motion is contacted by gear selecting component (18) with gear positions cam (19) rotational slide, gear selecting component (18) movement
During to gear positions cam (19) corresponding gear positions, gear shift action terminates, while gear positions cam (19) drives gear selecting
Pull rod (16) axially moves along gear selecting gear (17), and gear selecting pull rod (16) drives gear selecting to dial and inserts (15), pulls gear selecting spline
(14) high speed gear (6) or bootom gear (8) are close to.
Further：Signal acquisition mechanism is further included, the signal acquisition mechanism includes speed signal magnet steel (232), shelves
Position position magnet steel (261) and signal acquisition circuit plate (27), the speed signal magnet steel (232) are determined by speed signal magnet steel
Position hole (231) is connect with selector shaft (5)；Gear positions magnet steel (261) passes through gear positions magnet steel location hole (262) and gear selecting tooth
Take turns (17) connection；Signal acquisition circuit plate (27) includes speed Hall (271), neutral gear Hall (272), high and low shift Hall (273),
The neutral gear Hall (272), high and low shift Hall (273) and gear positions magnet steel (261) are oppositely arranged, and speed Hall (271)
It is oppositely arranged with speed signal magnet steel (232)；Signal acquisition circuit plate (27) acquires speed by speed signal magnet steel (232) to be believed
Number, gear positions signal is acquired by gear positions magnet steel (261)；The control module is collected by signal acquisition mechanism
Signal is judged that then driving gear-shifting actuating mechanism that gear selecting is driven to dial the gear selecting spline (14) inserted on (15) makes selector shaft (5)
It is engaged with the exchange of high, low speed shelves gear.
Preferably：High-grade position (191), neutral position (192), low-grade location are provided on the gear positions cam (19)
It puts (193), and the gear positions cam (19) is slidably connected by helical pitch hole (194) and helical pitch slot (162).
Preferably：The gear selecting dials slotting (15) and is provided with group slotting location hole (151), and the gear selecting dials slotting (15) and passes through first
Axis pin passes through group slotting location hole (151) that gear selecting group slotting (15) is connected with gear selecting pull rod (16) with gear selecting group slotting location hole (164)
Connect fixation.
Advantageous effect：A kind of electric vehicle two speed transmission provided by the invention compared with prior art, has below beneficial to effect
Fruit：
The present invention, instead of manually gear shift, is more convenient gear shift using electric gear.Design the shift pattern used
Cam structure accurately positions the position of each gear, gear is made accurately to rest on active position, prevents out of supply, extension shelves
It is not in place；The signal pickup assembly used is designed, speed changer output speed can be obtained in real time, coordinates motor input speed, passes through
Controller judges Shift gear moment, can accomplish not beat tooth in gearshift procedure, not pause and transition in rhythm or melody, does not impact.
Description of the drawings
Fig. 1 Fig. 1 is the structure diagram of the present invention.
Fig. 2 is each exploded perspective installation diagram of the present invention.
Fig. 3 is the decomposition chart of Fig. 1 middle gears position cam 19.
Fig. 4 is the three-dimensional assembling exploded view of selector shaft 5 in Fig. 1.
Fig. 5 be speed signal 23, gear positions signal 26, signal receiving circuit plate 27 three-dimensional assembly structure figure.
Fig. 6, be low grade, neutral gear, top grade three-dimensional assembly structure figure.
Fig. 7 be low grade, neutral gear, top grade three-dimensional assembly structure figure.
Fig. 8 be low grade, neutral gear, top grade three-dimensional assembly structure figure.
Wherein, 1- shells, 2- differential mechanisms, 3- differential mechanism output gears, 4- selector shaft output gears, 5- selector shafts, 6- high
Fast shelves gear, 7- top gear input gears, 8- bootom gears, 9- low or first gear input gears, 10- deboost axle input gears, 11-
Driving motor input gear, 12- deboost axles, 13- driving motor input shafts, 14- gear selecting splines, 141- spline tooths, 142- splines
Tooth, 15- gear selectings, which are dialled, inserts, 151- location holes, 16- gear selecting pull rods, 161- limit card slots, 162- helical pitch slots, 163- limit holes, 17-
Gear selecting gear, 171- gear holes, 18- gear selecting components, 181- selection levers, 19- gear positions cams, 191- top grades position, 192-
Neutral position, 193- low gear positions, 194- helical pitches hole, 20- step electric machine output gears, 21- reduction boxes, 22- step electric machines, 23-
Speed signal, 231- location holes, 232- speed signal magnet steel, 24- gear shift springs, 25- apical tooth springs, 26- gear positions signals,
261- gear positions magnet steel, 262- location holes, 27- signal receiving circuit plates, 271- speed Halls, 272- neutral gear Halls, 273-
High and low shift Hall, 28- spacing shims, 29- split pins, 30- spacing shims, 31- driving motors.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
A kind of electric vehicle two speed transmission, as shown in Figs. 1-5, including shell 1, driving mechanism, deceleration mechanism, gear shift machine
Structure, gear selection mechanism, gear-shifting actuating mechanism, signal acquisition mechanism and control module, be equipped in the shell 1 deceleration mechanism,
Shift mechanism, gear selection mechanism, gear-shifting actuating mechanism, signal acquisition mechanism and control module, wherein：
The driving mechanism is used to control electric vehicle rotating speed according to control module, and the rotating speed is passed to deceleration mechanism；
Rotating speed after reduction is passed to shift mechanism by the deceleration mechanism for the reduction to driving mechanism rotating speed；
The control module is used to control the operation of gear-shifting actuating mechanism and driving mechanism；
The gear-shifting actuating mechanism is according to the control of control module, driving gear selection mechanism progress high and low shift gear selecting；
The gear selection mechanism is used to carry out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and passing to institute's gear selecting into
Shift mechanism；
The rotating speed that deceleration mechanism transmits is passed to output terminal wheel by the shelves that the shift mechanism is chosen according to gear selection mechanism
Tire.
Driving mechanism includes driving motor 31, driving motor input shaft 13 and driving motor input gear 11, the drive
It is dynamic to be sequentially connected between motor 31 and driving motor input gear 11 by driving motor input shaft 13；The driving motor input
13 one end of axis is fixed on by bearing in shell 1, and one end is connected with driving motor 31.
It is defeated that the deceleration mechanism includes deboost axle input gear 10, deboost axle 12, low or first gear input gear 9 and top gear
Enter gear 7, the deboost axle input gear 10 is fixedly mounted on deboost axle 12, and the driving motor input gear 11 is with subtracting
The often engagement connection of fast axis input gear 10；The low or first gear input gear 9 is fixedly connected by the first spline with deboost axle 12, and
Top gear input gear 7 is fixed together with 12 one linkage of deboost axle；Or the top gear input gear 7 passes through the first flower
Key is fixedly connected with deboost axle 12, and low or first gear input gear 9 is fixed together with 12 one linkage of deboost axle；
The shift mechanism includes gear selecting spline 14, selector shaft 5, high speed gear 6 and bootom gear 8, the gear shift
Selector shaft output gear 4 is provided on axis 5, and the high speed gear 6 and bootom gear 8 pass through clamp spring pad with selector shaft 5
Piece limiting connection is simultaneously rotatable, while the gear selecting spline 14 is placed between high speed gear 6 and bootom gear 8 and passes through flower
Key is connect with selector shaft 5, and top gear input gear 7 often engages connection with high speed gear 6；Low or first gear input gear 9 and low speed
The often engagement connection of shelves gear 8；Gear selecting spline 14 is placed between high speed gear 6 and bootom gear 8 and passes through spline and gear shift
Axis 5 connects, and can slide axially；Gear selection mechanism is driven by gear-shifting actuating mechanism, and gear selecting is pulled, which to dial slotting 15, spends gear selecting
Key 14 is engaged with high speed gear 6 or gear selecting spline 14 is engaged with bootom gear 8.
The gear selection mechanism includes gear selecting and dials slotting 15, gear selecting pull rod 16, gear selecting gear 17, gear selecting component 18, gear positions
Cam 19 and apical tooth spring 25, the gear selecting pull rod 16 are equipped with gear selecting and dial the slotting limiting of location hole 164, first pad successively in an axial direction
Piece 30, limit card slot 161, helical pitch slot 162, limit hole 163；The gear selecting, which is dialled, inserts 15 by the slotting location hole 164 of gear selecting group and choosing
Shelves pull rod 16 is connected to a fixed, while is provided with gear shift spring 24 between the gear selecting group slotting 15 and the first spacing shim 30, and
The gear shift spring 24 is sleeved on gear selecting pull rod 16, and first spacing shim 30 is fixedly connected on shell 1；The gear selecting
Gear 17, gear selecting component 18, gear positions cam 19 and apical tooth spring 25 are sequentially sleeved in 30 opposite side of the first spacing shim
On gear selecting pull rod 16；And split pin 29 is installed in the limit hole 163 of the gear selecting pull rod 16, the apical tooth spring 25 and opening
The second spacing shim 28 is provided between pin 29；The gear positions cam 19 is axially moved, and it deviates from along helical pitch slot 162
The extreme position that apical tooth spring 25 moves is limit card slot 161；One end of the gear selecting gear 17 and gear selecting component 18, which is fixed, to be connected
It connects, and the gear selecting gear 17 rotates in a circumferential direction along gear selecting pull rod 16；The other end of the gear selecting component 18 is along gear position simultaneously
It puts cam 19 and does circumferential movement；Gear selecting gear 17 is connect with gear selecting pull rod 16, and gear selecting gear 17 is along gear selecting pull rod 16 in gear selecting
Clockwise movement；Gear selecting component 18 is closely connect with gear selecting gear 17；Gear positions cam 19 and low or first gear apical tooth spring 25, limit
Position gasket 28 is connected to the limit hole of gear selecting pull rod 16 below 163 by split pin 29.Pass through limit card slot 161, helical pitch slot
162, the axial movement that gear positions cam 19 is limited in scope in 16 upper edge helical pitch slot 162 of gear selecting pull rod.
By speed signal 23, driving gear-shifting actuating mechanism passes to gear selecting gear 17 by gear shifting motor output gear 20, leads to
Gear selecting component 18 is crossed to contact with 19 rotational slide of gear positions cam；When gear selecting component 18 is by gear positions 19 surface of cam,
Gear positions cam 19 drives gear selecting pull rod 16 to axially move along gear hole 171.
The gear-shifting actuating mechanism includes step electric machine 22, reduction box 21 and the gear shifting motor output being sequentially connected successively
Tooth 20, and the gear shifting motor output gear 20 and gear selecting gear 17 are connected by meshing transmission；
The signal acquisition mechanism includes speed signal magnet steel 232, gear positions magnet steel 261 and signal acquisition circuit plate
27, the speed signal magnet steel 232 is connect by speed signal magnet steel location hole 231 with selector shaft 5；Gear positions magnet steel 261
It is connect by gear positions magnet steel location hole 262 with gear selecting gear 17；Signal acquisition circuit plate 27 includes speed Hall 271, sky
Shelves Hall 272, high and low shift Hall 273, the neutral gear Hall 272, high and low shift Hall 273 are opposite with gear positions magnet steel 261 to be set
It puts, and speed Hall 271 is oppositely arranged with speed signal magnet steel 232；Signal acquisition circuit plate 27 passes through speed signal magnet steel 232
Speed signal is acquired, gear positions signal is acquired by gear positions magnet steel 261；
The control module controls step electric machine 22 to pass to gear selecting tooth by gear shifting motor output gear 20 according to shift signal
Wheel 17, gear selecting gear 17 drive gear selecting component 18 to rotate clockwise；Gear selecting component 18 leads to along 19 apparent motion of gear positions cam
It crosses gear selecting component 18 to contact with 19 rotational slide of gear positions cam, it is corresponding that gear selecting component 18 moves to gear positions cam 19
During gear positions, gear shift action terminates, while gear positions cam 19 drives gear selecting pull rod 16 to do axial fortune along gear selecting gear 17
Dynamic, gear selecting pull rod 16 drives gear selecting to dial and inserts 15, and gear selecting spline 14 is pulled to be close to high speed gear 6 or bootom gear 8；The control
Molding block is judged by the collected signal of signal acquisition mechanism, is then driven gear-shifting actuating mechanism that gear selecting is driven to dial and is inserted 15
On gear selecting spline 14 selector shaft 5 and high, low speed shelves gear is exchanged engage.
High-grade position 191, neutral position 192, low gear position 193 are provided on the gear positions cam 19, and described
Gear positions cam 19 is slidably connected by helical pitch hole 194 and helical pitch slot 162.Gear positions cam (19) passes through helical pitch hole 194
It connect, and can only axially move with helical pitch slot 162, and cannot move in a circle.
The gear selecting group inserts 15 and is provided with group slotting location hole 151, and it is slotting across dialling by the first axis pin that the gear selecting dials slotting 15
Location hole 151 and gear selecting dial slotting location hole 164 and gear selecting group slotting 15 and gear selecting pull rod 16 are connected to a fixed.
Then the present invention finally imparts power to output terminal wheel by the input of driving motor 24 by slowing down step by step
Tire.Driving motor 31 is connect with driving motor input shaft 13, and power is passed to driving motor by driving motor input shaft 13
Input gear 11, by passing to deboost axle input gear 10 by driving motor input gear 11 again；Low or first gear input gear 9 is with subtracting
Fast axis input gear 10 is fixed in a manner of spline on deboost axle 12, and top gear input gear 7 is integrated connection with deboost axle 12
It is dynamic.When deboost axle input gear 10 rotates, deboost axle 12, top gear input gear 7, low or first gear input gear 9 is driven to synchronize
Rotation；Top gear input gear 9 is often engaged with high speed gear 8, and low or first gear input gear 7 is often engaged with bootom gear 6；It is high
Fast shelves gear 6 and bootom gear 8 are limited by clamp spring gasket, are connect with selector shaft 5 and rotatable.Gear selecting spline 14 is placed in height
It between fast shelves gear 6 and bootom gear 8, is connect by spline with selector shaft 5, and can lower slider vertically；Pass through gear shift
Executing agency drives gear selection mechanism, and gear shift is pulled to dial to insert gear selecting spline 14 is made to be engaged with high speed gear 6 or gear selecting spline 14
It is engaged with bootom gear 8, two different engagement systems, the fast ratio of two different outputs will be obtained；Output gear 4 and gear shift
5 one linkage of axis, two different speed pass to differential gear 3 by output gear 4 than finally, are ultimately transferred to output terminal wheel
Tire.
Such as Fig. 1,2.It is shown, as described above, driving gear selection mechanism by gear-shifting actuating mechanism, and pull gear shift group is slotting to make gear selecting
Spline 14 is engaged with high speed gear 8 or bootom gear 6, to obtain two different fast ratios
- gear shift, which dials to insert, to be included：Gear selecting, which is dialled, inserts 15, gear selecting pull rod 16；Gear selecting dials slotting 15 and passes through location hole 151 and location hole
164 are fixed on by screw on gear selecting pull rod 16.When pull rod moves up and down, gear selecting, which is dialled, inserts passive linkage.
- gear selection mechanism includes：Gear selecting gear 17, gear selecting component 18, gear positions cam 19, split pin 29, spacing shim
28th, apical tooth spring 25, spacing shim 30, gear shift spring 24；Gear selecting gear 17 is connect by gear hole 171 with gear selecting pull rod 16,
Gear selecting gear 17 is fixed on babinet, is rotated clockwise along gear selecting pull rod 16；Gear selecting component 18 is fixed with gear selecting gear 17 to be connected
It connects；Gear positions cam 19 is sleeved on by helical pitch hole 194, helical pitch slot 162 on gear selecting pull rod 16；Split pin 29 is fixed on location hole
In 163, spacing shim 28, apical tooth spring 25 are sleeved on gear selecting pull rod 16, and are limited in location hole below 163 by split pin 29；
25 lower end of apical tooth spring presses to gear positions cam 19, and gear positions cam 19 is made to generate downward pressure always and is finally limited
System is on the position of limit card slot 161；In conclusion gear positions cam 19 is in fixed angle with gear selecting pull rod 16, and can edge
It gear selecting pull rod 16 and does upward, limited slide axially；Gear shift spring 24 is sleeved on gear selecting pull rod 16, and is limited in gear selecting
It dials and inserts between 15 and spacing shim 30；Spacing shim 30 is fixed on housing 1.
- gear-shifting actuating mechanism includes：Step electric machine 22, reduction box 21, step electric machine output gear 20；During gear shift, gear selecting electricity
Machine 22 drives reduction box 21, and gear selecting gear 17 is passed to by step electric machine output gear 20.
Transferring the files for the present invention is as described below：
First, it is low-grade
As shown in Fig. 6,3, as described above.When CPU (control module) sends out shift command, step electric machine 22 finally drives
Step electric machine output gear 20 passes to driving gear selecting gear 17 again；Gear selecting gear 17 drives gear selecting component 18 to rotate clockwise；Choosing
Shelves component 18 is along 19 apparent motion of gear positions cam, and when gear selecting component 18 moves to cam low gear position 193, gear shift acts
Terminate, it is characterised in that：
When gear selecting component 18 is along gear positions 19 apparent motion of cam, gear positions cam 19 is constantly jacked up upwards, top
After 25 stress of tooth spring, gear selecting pull rod 16 is driven to move upwards；Gear selecting pull rod 16 drives gear selecting to dial and inserts 15, pulls gear selecting spline 14
Bootom gear 8 is close to, final spline tooth 141 is injected in bootom gear 8；During this, since spacing shim 30 is fixed not
Dynamic, gear shift spring 24 is compressed continuously in the process in moving upwards for gear shift group slotting 15；Therefore during low grade, gear shift spring
24 are in compressive state always；The elastic force of apical tooth spring 25 is consistently greater than the power under the compressive state of gear shift spring 24, therefore
When apical tooth does not occur, apical tooth spring 25 remains range and is not compressed.
2nd, neutral gear
As shown in Fig. 7,3, as described above.When CPU sends out shift command, finally driving step electric machine is defeated for step electric machine 22
Go out gear 20 and drive gear selecting gear 17；Gear selecting gear 17 drives gear selecting component 18 to rotate clockwise；Gear selecting component 18 is along gear position
19 apparent motion of cam is put, is neutral state when gear selecting component 18 moves to cam low gear position 192, it is characterised in that：
When gear selecting component 18 leaves the arrival neutral position 192 of low gear position 193, gear shift spring 24 discharges partial pressure, will
Gear selection position cam 19 pulls downward on certain distance；As described above, the linkage of gear selecting pull rod 16 and gear selection position cam 19, drives
Gear selecting dials slotting 15 and then the spline tooth 141 of gear selecting spline 14 is driven to leave bootom gear 8；Spline tooth 141,142 and low or first gear
Gear 8, high speed gear 6 are non-interference, this is neutral state.
3rd, it is high-grade
As shown in Fig. 8,3, as described above.When CPU sends out shift command, finally driving step electric machine is defeated for step electric machine 22
Go out gear 20 and drive gear selecting gear 17；Gear selecting gear 17 drives gear selecting component 18 to rotate clockwise；Gear selecting component 18 is along gear position
19 apparent motion of cam is put, when gear selecting component 18 moves to cam low gear position 191, gear shift action terminates to be high-grade state,
It is characterized in that：
When gear selecting component 18 leaves the arrival neutral position 191 of low gear position 192, gear shift spring 24 discharges whole pressure, will
Gear selection position cam 19 pulls certain distance still further below；As described above, the linkage of gear selecting pull rod 16 and gear selection position cam 19, band
Dynamic gear selecting dials slotting 15 and then gear selecting spline 14 is driven to slide to high speed gear 6, and spline tooth 141 is made to be engaged with high speed gear 6；
During this, if there is apical tooth phenomenon, when 24 release spring stroke of gear shift spring, is obstructed, and is staggered and final in spline tooth 142
When injecting in high speed gear 6,24 stroke of gear shift spring is all discharged, then gearshift procedure terminates, and is at this time high-grade state.
The present invention is judged by collected signal, then drives gear-shifting actuating mechanism that gear shift is driven to dial the flower plugged
Key makes selector shaft be engaged with the exchange of high bootom gear；Switched by high low speed, make electric vehicle in various road conditions driving processes,
Always driving motor is maintained at high efficient district.During running at a low speed, large torque is generated, reduces electric vehicle starting current.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of electric vehicle two speed transmission, it is characterised in that：Including driving mechanism, deceleration mechanism, shift mechanism, gear selecting machine
Structure, gear-shifting actuating mechanism and control module, wherein：
The driving mechanism is used to control electric vehicle rotating speed according to control module, and the rotating speed is passed to deceleration mechanism；
Rotating speed after reduction is passed to shift mechanism by the deceleration mechanism for the reduction to driving mechanism rotating speed；
The control module is used to control the operation of gear-shifting actuating mechanism and driving mechanism；
The gear-shifting actuating mechanism is according to the control of control module, driving gear selection mechanism progress high and low shift gear selecting；
The gear selection mechanism is used to carry out high and low shift gear selecting according to the driving of gear-shifting actuating mechanism, and institute's gear selecting is passed to gear shift
Mechanism；
The rotating speed that deceleration mechanism transmits is passed to output terminal tire by the shelves that the shift mechanism is chosen according to gear selection mechanism；
The driving mechanism includes driving motor (31), driving motor input shaft (13) and driving motor input gear (11),
It is sequentially connected between the driving motor (31) and driving motor input gear (11) by driving motor input shaft (13)；
The gear selection mechanism includes gear selecting and dials slotting (15), gear selecting pull rod (16), gear selecting gear (17), gear selecting component (18), gear
Position cam (19) and apical tooth spring (25), the gear selecting pull rod (16) are equipped with gear selecting and dial slotting location hole successively in an axial direction
(164), the first spacing shim (30), limit card slot (161), helical pitch slot (162), limit hole (163)；The gear selecting, which is dialled, inserts (15)
Slotting location hole (164) is dialled by gear selecting to be connected to a fixed with gear selecting pull rod (16), while the gear selecting is dialled and inserts (15) and the first limit
Gear shift spring (24) is provided with, and the gear shift spring (24) is sleeved on gear selecting pull rod 16 between position gasket (30), and described the
One spacing shim (30) is fixedly connected on shell (1)；The gear selecting gear (17), gear selecting component (18), gear positions cam
(19) and apical tooth spring (25) is sequentially sleeved on the gear selecting pull rod (16) of the first spacing shim (30) opposite side；And the gear selecting
Split pin (29) is installed in the limit hole (163) of pull rod (16), is set between the apical tooth spring (25) and split pin (29)
There is the second spacing shim (28)；The gear positions cam (19) is axially moved along helical pitch slot (162), and it deviates from apical tooth bullet
The extreme position of spring (25) movement is limit card slot (161)；The gear selecting gear (17) and one end of gear selecting component (18) are fixed
Connection, and the gear selecting gear (17) rotates in a circumferential direction along gear selecting pull rod 16；Simultaneously the gear selecting component (18) the other end along
Gear positions cam (19) circumferentially rotates connection；
The deceleration mechanism includes deboost axle input gear (10), deboost axle (12), low or first gear input gear (9) and top gear
Input gear (7), the deboost axle input gear (10) are fixedly mounted on deboost axle (12), and driving motor input tooth
Wheel (11) often engages connection with deboost axle input gear (10)；The low or first gear input gear (9) is by the first spline with slowing down
Axis (12) is fixedly connected, and top gear input gear (7) integrally links with deboost axle (12) and is fixed together；Or the high speed
Shelves input gear (7) is fixedly connected by the first spline with deboost axle (12), and low or first gear input gear (9) and deboost axle (12)
One linkage is fixed together；
The shift mechanism includes gear selecting spline (14), selector shaft (5), high speed gear (6) and bootom gear (8), described
It is provided with selector shaft output gear (4) on selector shaft (5), and the high speed gear (6) and bootom gear (8) and selector shaft
(5) connection and rotatable is limited by clamp spring gasket, while the gear selecting spline (14) is placed in high speed gear (6) and low or first gear
Between gear (8) and pass through spline and connect with selector shaft (5), and can slide axially, top gear input gear (7) and top gear
Gear (6) often engagement connection；Low or first gear input gear (9) often engages connection with bootom gear (8)；Gear selecting spline (14) passes through
The pulling that gear selecting dials slotting (15) is engaged with high speed gear (6) or is engaged with bootom gear (8).
2. electric vehicle two speed transmission according to claim 1, it is characterised in that：The gear-shifting actuating mechanism is included successively
Step electric machine (22), reduction box (21) and the gear shifting motor output gear (20) of drive connection, and the gear shifting motor output gear
(20) it is connected by meshing transmission with gear selecting gear (17).
3. electric vehicle two speed transmission according to claim 1, it is characterised in that：The control module is according to shift signal
Control step electric machine (22) passes to gear selecting gear (17) by gear shifting motor output gear (20), and gear selecting gear (17) drives gear selecting group
Part (18) rotates clockwise；Gear selecting component (18) passes through gear selecting component (18) and shelves along gear positions cam (19) apparent motion
Position position cam (19) rotational slide contact, gear selecting component (18) move to gear positions cam (19) corresponding gear positions
When, gear shift action terminates, while gear positions cam (19) drives gear selecting pull rod (16) to axially move along gear selecting gear (17),
Gear selecting pull rod (16) drives gear selecting to dial and inserts (15), and gear selecting spline (14) is pulled to be close to high speed gear (6) or bootom gear
(8)。
4. electric vehicle two speed transmission according to claim 1, it is characterised in that：Signal acquisition mechanism is further included, it is described
Signal acquisition mechanism includes speed signal magnet steel (232), gear positions magnet steel (261) and signal acquisition circuit plate (27), institute
Speed signal magnet steel (232) is stated to connect with selector shaft (5) by speed signal magnet steel location hole (231)；Gear positions magnet steel
(261) it is connect by gear positions magnet steel location hole (262) with gear selecting gear (17)；Signal acquisition circuit plate (27) is including speed
Hall (271), neutral gear Hall (272), high and low shift Hall (273), the neutral gear Hall (272), high and low shift Hall (273) and shelves
Position position magnet steel (261) is oppositely arranged, and speed Hall (271) is oppositely arranged with speed signal magnet steel (232)；Signal acquisition electricity
Road plate (27) acquires speed signal by speed signal magnet steel (232), and acquiring gear positions by gear positions magnet steel (261) believes
Number；The control module is judged by the collected signal of signal acquisition mechanism, then gear-shifting actuating mechanism is driven to drive
Gear selecting, which dials the gear selecting spline (14) inserted on (15), makes selector shaft (5) be engaged with the exchange of high, low speed shelves gear.
5. electric vehicle two speed transmission according to claim 1, it is characterised in that：It is set on the gear positions cam (19)
High-grade position (191), neutral position (192), low gear position (193) are equipped with, and the gear positions cam (19) passes through helical pitch
Hole (194) is slidably connected with helical pitch slot (162).
6. electric vehicle two speed transmission according to claim 1, it is characterised in that：The gear selecting group slotting (15), which is provided with, to be dialled
Location hole (151) is inserted, the gear selecting dials slotting (15) and group slotting location hole (151) and gear selecting passed through to dial slotting location hole by the first axis pin
(164) gear selecting is dialled into slotting (15) and gear selecting pull rod (16) is connected to a fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417410.0A CN105065654B (en) | 2015-07-15 | 2015-07-15 | A kind of electric vehicle two speed transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510417410.0A CN105065654B (en) | 2015-07-15 | 2015-07-15 | A kind of electric vehicle two speed transmission |
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| CN105065654A CN105065654A (en) | 2015-11-18 |
| CN105065654B true CN105065654B (en) | 2018-06-22 |
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| CN201510417410.0A Active CN105065654B (en) | 2015-07-15 | 2015-07-15 | A kind of electric vehicle two speed transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107415683B (en) * | 2017-04-26 | 2023-07-18 | 华南理工大学 | Electric gear shifting mechanism suitable for sequential gearbox engine |
| CN113236772A (en) * | 2021-04-30 | 2021-08-10 | 华南理工大学 | Gear shifting device and power assisting instrument comprising same |
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| CN101704340A (en) * | 2009-11-26 | 2010-05-12 | 锦州汉拿电机有限公司 | Power assembly for two-shift motor vehicle |
| CN102486228A (en) * | 2010-12-01 | 2012-06-06 | 现代自动车株式会社 | Shifting apparatus for manual transmission |
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| CN204226627U (en) * | 2014-09-18 | 2015-03-25 | 范兆军 | Motor rear axle power-shift gear box |
| CN205173447U (en) * | 2015-07-15 | 2016-04-20 | 徐州南普机电科技有限公司 | Electric motor car two keeps off derailleur |
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|---|---|---|---|---|
| CN101704340A (en) * | 2009-11-26 | 2010-05-12 | 锦州汉拿电机有限公司 | Power assembly for two-shift motor vehicle |
| CN102486228A (en) * | 2010-12-01 | 2012-06-06 | 现代自动车株式会社 | Shifting apparatus for manual transmission |
| CN202807034U (en) * | 2012-06-21 | 2013-03-20 | 常州大兴辰源动力科技有限公司 | Electric vehicle transmission |
| CN203035874U (en) * | 2013-01-18 | 2013-07-03 | 上海中科深江电动车辆有限公司 | Two-gear automatic transmission applied to pure electric vehicle |
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Application publication date: 20151118 Assignee: Songpu (Xuzhou) New Energy Technology Co.,Ltd. Assignor: XUZHOU NANPU ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Contract record no.: X2021980015632 Denomination of invention: Two speed transmission for electric vehicle Granted publication date: 20180622 License type: Exclusive License Record date: 20211218 |
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