CN209278459U - A kind of electric vehicle automatic transmission gear shift device - Google Patents
A kind of electric vehicle automatic transmission gear shift device Download PDFInfo
- Publication number
- CN209278459U CN209278459U CN201821874123.8U CN201821874123U CN209278459U CN 209278459 U CN209278459 U CN 209278459U CN 201821874123 U CN201821874123 U CN 201821874123U CN 209278459 U CN209278459 U CN 209278459U
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- CN
- China
- Prior art keywords
- shift
- shift fork
- gear
- electric vehicle
- automatic transmission
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- 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.)
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Abstract
A kind of electric vehicle automatic transmission gear shift device, including shift assembly and shift drive system, the shift assembly includes guiding axis, shift fork axle, shift fork, limiting device, bottom gear contact sensor and top gear contact sensor, the shift fork are set in the shift fork axle, and the shift drive system includes shift motor, ball-screw and the guide pad on the ball-screw is set in by spiral, the guide pad is movably arranged between the guiding axis and the shift fork axle.Its structure is simple, and whole work process by automatically controlled realization, controls completely without human intervention；Limiting device effectively prevents gear, it is ensured that the stabilization of the working condition of gearbox.
Description
Technical field
The utility model relates to vehicle speed control unit fields, and in particular to a kind of electric vehicle automatic transmission gear shift dress
It sets.
Background technique
Existing electric vehicle generallys use two gear formula speed changers and shifts gears.This double-speed speed change gear is in shift, by changing
It keeps off motor and driving source or revolving speed is provided, after the deceleration of deceleration mechanism, be converted to the rotary motion of cam, the rotation forces set of cam
Shift fork linear movement in shift fork axle, and then realize gear switching.Existing this gearshift, due to participating in original part of shifting gears
Quantity is more, and transmitting power is complicated, the rate of breakdown of gearshift is increased, in the design and manufacture of worm and gear, cam mechanism
On there is also product quality hidden danger, and worm and gear, cam mechanism difficulty of processing are big, and manufacturing cost is high.In addition, in shift,
Due to accuracy of manufacture factor or after being used for a long time, excessive wear occurs cam mechanism for cam mechanism, always there is gap, thus
It is easy to cause phenomenon not in place of shifting gears.
Therefore solves the problems, such as it is this kind of be particularly important, this technology be the gearshift to gearbox design with
It pays attention to and solves the problems, such as in use.
Utility model content
In view of the above problems, the utility model provides a kind of electric vehicle automatic transmission gear shift device.
The technical solution of the utility model is: a kind of electric vehicle automatic transmission gear shift device, including shift assembly
And shift drive system, the shift assembly include guiding axis, shift fork axle, shift fork, limiting device, bottom gear contact sensor and
Top gear contact sensor, the shift fork are set in the shift fork axle, and the shift drive system includes shift motor, ball
Lead screw and the guide pad on the ball-screw is set in by spiral, the guide pad connection shift fork is simultaneously arranged in the guiding
Between axis and the shift fork axle.
Further improvement of the utility model is: the limiting device includes steel ball, limit spring and is successively set on
Top gear position groove above the shift fork axle, neutral gear position groove and bottom gear position groove, the steel ball was according at that time
Gearshift condition be placed in corresponding position groove, described limit spring one end be equipped with caging bolt.
Further improvement of the utility model is: the upper and lower ends of the guide pad are fixed with convex block, wherein on
Convex block is equipped with upslope face, and lower protruding block is equipped with oblique slope surface, and the upslope face and the oblique slope surface respectively correspond institute
State bottom gear contact sensor and top gear contact sensor.
Further improvement of the utility model is: the guide pad side connects the guiding axis by axle sleeve, another
Side connects the shift fork, and the axle sleeve is to be set on the guiding axis.
Further improvement of the utility model is: the shift fork includes interconnecting piece and actuating arm, and the interconnecting piece passes through
Through-hole set is through in the shift fork axle and is fixed by the way that fixture block is arranged, and the interconnecting piece side is fixedly connected with the guiding
Block, the actuating arm are divided into two sections and set up separately in semicircle ring structure in the left and right sides of the interconnecting piece.
Further improvement of the utility model is: the bottom of the guide pad is equipped with pedestal, on the shift fork and pedestal
It is equipped with installation bolt.
Further improvement of the utility model is: the bottom gear contact sensor and top gear contact sensor are fixed
It is arranged on the external shell of gearbox.
The utility model provides a kind of electric vehicle automatic transmission gear shift device, and gearshift is arranged in transmission internal,
Cooperate the structure concave-convex surface of gearshift on the external shell of gearbox, the upper of the ball-screw is arranged in shift motor
Side, ball-screw dextrorotation under the drive of shift motor, under the constraint of guiding axis, guide pad moves straight up, drives and dials
Fork shaft and shift fork move straight up, since caging bolt is stuck at the shell bumps of gearbox, are kept fixed posture, shift fork
When axis moves up, shift fork handsetting gear is engaged to bottom gear, and the upslope face on guide pad upper protruding block pushes bottom gear at this time
Contact sensor, bottom gear contact sensor is connected, and sends signal and shift motor is stopped working, and shift fork also stops at this time
Work, steel ball is stuck in the groove of bottom gear position under limit spring active force at this time, prevents gear, and gearbox is in low at this time
Speed gear working condition；
Ball-screw is left-handed under the drive of shift motor, and under the constraint of guiding axis, guide pad moves straight down, band
Dynamic shift fork and shift fork axle move straight down, and handsetting gear is engaged to top gear, at this time the oblique slope surface on guide pad lower protruding block
Top gear contact sensor is pushed, top gear contact sensor is connected, and subsequent signal makes shift motor stop working, dials at this time
Fork also stops working, and steel ball is stuck in the groove of top gear position under limit spring active force at this time, prevents gear, at this time speed change
Case is in top gear working condition.
The beneficial effects of the utility model are: its structure is simple, small in size, at low cost, components are relatively fewer, and structure is tight
It gathers, function is effective, brings convenience to the use and implementation of product, judges shift of transmission in place simultaneously using contact sensor
Issuing signal to shift motor stops gear shifting action, on the one hand the automatic gear shift apparatus of the utility model simplifies shift driving
The structure of mechanism, while shift of transmission accuracy of action and reliability are significantly improved again, there is very wide answer
Use prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is shifting fork structure schematic diagram in the utility model；
Wherein: 1- guiding axis, 2- shift fork axle, 3- shift fork, 4- bottom gear contact sensor, 5- top gear contact sensor,
6- shift motor, 7- ball-screw, 8- spiral, 9- guide pad, 10- steel ball, 11- limit spring, 12- top gear position groove,
13- neutral gear position groove, 14- bottom gear position groove, 15- caging bolt, 16- upper protruding block, 17- upslope face are convex under 18-
Block, the oblique slope surface of 19-, 20- connector, 21- axle sleeve, 22- interconnecting piece, 23- actuating arm, 24- fixture block, 25- pedestal, 26- installation
Bolt.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Such as figure, the present embodiment provides a kind of electric vehicle automatic transmission gear shift device, gearshift is arranged in gearbox
Portion, the structure concave-convex surface of gearshift is cooperated on the external shell of gearbox, and the gearshift includes shift assembly and changes
Drive system is kept off, the shift assembly includes guiding axis 1, shift fork axle 2, shift fork 3, limiting device, 4 He of bottom gear contact sensor
Top gear contact sensor 5, the shift fork 3 are set in the shift fork axle 2, and the shift drive system includes shift motor 6,
Ball-screw 7 and the guide pad 9 on the ball-screw 7 is set in by spiral 8, the shift motor 6 is arranged in the rolling
7 top of ballscrew, the guide pad 9 connect shift fork 3 and are arranged between the guiding axis 1 and the shift fork axle 2.
The limiting device includes steel ball 10, limit spring 11 and the top gear for being successively set on 2 top of shift fork axle
Position groove 12, neutral gear position groove 13 and bottom gear position groove 14, described 11 one end of limit spring connect caging bolt 15,
Caging bolt 15 is stuck at the shell bumps of gearbox, is kept fixed posture, and the steel ball 10 exists according to gearshift condition at that time
It is placed under the active force of limit spring 11 in corresponding position groove.The upper and lower ends of the guide pad 9 are fixed with convex
Block, wherein upper protruding block 16 is equipped with upslope face 17, and lower protruding block 18 is equipped with oblique slope surface 19, the upslope face 17 and described
Oblique slope surface 19 respectively corresponds the bottom gear contact sensor 4 and top gear contact sensor 5, the bottom gear contact sense
Device 4 and top gear contact sensor 5 are fixedly installed on the external shell of gearbox.
9 side of guide pad connects the guiding axis 1 by axle sleeve 21, and the axle sleeve 21 is to be set in the guiding axis
On 1, the other side connects the shift fork 3, and the shift fork 3 includes interconnecting piece 22 and actuating arm 23, and the interconnecting piece 22 passes through through-hole
Set is through in the shift fork axle 2, hole slot is correspondingly provided in the shift fork axle and interconnecting piece, and by right in the insertion hole slot of fixture block 24
The two is fixed, and 22 side of interconnecting piece is equipped with connector 20 for connecting the guide pad 9, and the actuating arm 23, which divides, is
Two sections are set up separately in semicircle ring structure in the left and right sides of the interconnecting piece 22, and the bottom of the ball-screw 7 is equipped with pedestal 25, institute
It states and is equipped with installation bolt 26 on shift fork 3 and pedestal 25, installation bolt 26 correspondence is stuck at the corresponding shell bumps of gearbox,
Play fixed function.
The present embodiment provides a kind of electric vehicle automatic transmission gear shift devices, and ball-screw 7 is under the drive of shift motor 6
Dextrorotation, under the constraint of guiding axis 1, guide pad 9 moves straight up, and shift fork axle 2 and shift fork 3 is driven to move straight up,
Since caging bolt 15 is stuck at the shell bumps of gearbox, it is kept fixed posture, when shift fork axle 2 moves up, drives steel ball
10 move up, and 3 handsetting gear of shift fork is engaged to bottom gear, and the upslope face 17 on 9 upper protruding block 16 of guide pad pushes low at this time
Speed gear contact sensor 4, bottom gear contact sensor 4 is connected, and sends signal and shift motor 6 is stopped working, and is dialled at this time
Fork 3 also stops working, and steel ball 10 is stuck in bottom gear position groove 14 under 11 active force of limit spring at this time, prevents gear,
Gearbox is in bottom gear working condition at this time；
Ball-screw 7 is left-handed under the drive of shift motor 6, and under the constraint of guiding axis 1, guide pad 9 moves straight down
It is dynamic, drive shift fork 3 and shift fork axle 2 to move straight down, handsetting gear is engaged to top gear, at this time on 9 lower protruding block 18 of guide pad
Oblique slope surface 19 push top gear contact sensor, top gear contact sensor 5 is connected, and subsequent signal makes shift motor 6
It stops working, shift fork 3 also stops working at this time, and steel ball 10 is stuck in top gear position groove under 11 active force of limit spring at this time
In 12, gear is prevented, gearbox is in top gear working condition at this time.
The beneficial effect of the present embodiment is: its structure is simple, and whole work process is completely by automatically controlled realization, without artificial dry
Pre-control；Limiting device effectively prevents gear, it is ensured that the stabilization of the working condition of gearbox.Judge to become using contact sensor
Fast device shift is in place and issuing signal to shift motor stops gear shifting action, and the automatic gear shift apparatus of the utility model is on the one hand
The structure of shift driving mechanism is simplified, while significantly improving shift of transmission accuracy of action and reliability again, is had
There is very wide application prospect.
It should be understood by those skilled in the art that the present utility model is not limited to the above embodiments, above-described embodiment and
Only illustrate the principles of the present invention described in specification, on the premise of not departing from the spirit and scope of the utility model,
The utility model also has various changes and improvements, these changes and improvements both fall within the scope of the claimed invention
It is interior.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
1. a kind of electric vehicle automatic transmission gear shift device, it is characterised in that: described including shift assembly and shift drive system
Shift assembly includes guiding axis, shift fork axle, shift fork, limiting device, bottom gear contact sensor and top gear contact sensor, institute
It states shift fork to be set in the shift fork axle, the shift drive system includes shift motor, ball-screw and is arranged by spiral
Guide pad on the ball-screw, the guide pad connect shift fork and be arranged the guiding axis and the shift fork axle it
Between.
2. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the limiting device
Including steel ball, limit spring and the top gear position groove being successively set on above the shift fork axle, neutral gear position groove and low
Speed gear position groove, the steel ball are placed in corresponding position groove according to gearshift condition at that time, the limit spring one
End is equipped with caging bolt.
3. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the guide pad
Upper and lower ends are fixed with convex block, and wherein upper protruding block is equipped with upslope face, and lower protruding block is equipped with oblique slope surface, described oblique
Slope surface and the oblique slope surface respectively correspond the bottom gear contact sensor and top gear contact sensor.
4. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the guide pad one
Side connects the guiding axis by axle sleeve, and the other side connects the shift fork, and the axle sleeve is to be set on the guiding axis.
5. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the shift fork includes
Interconnecting piece and actuating arm, the interconnecting piece are through in the shift fork axle by through-hole set and are fixed by the way that fixture block is arranged, institute
It states interconnecting piece side and is fixedly connected with the guide pad, the actuating arm is divided into two sections and sets up separately in semicircle ring structure in the interconnecting piece
The left and right sides.
6. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the guide pad
Bottom is equipped with pedestal, is equipped with installation bolt on the shift fork and pedestal.
7. a kind of electric vehicle automatic transmission gear shift device according to claim 1, it is characterised in that: the bottom gear touching
Point sensor and top gear contact sensor are fixed on the external shell of gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821874123.8U CN209278459U (en) | 2018-11-14 | 2018-11-14 | A kind of electric vehicle automatic transmission gear shift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821874123.8U CN209278459U (en) | 2018-11-14 | 2018-11-14 | A kind of electric vehicle automatic transmission gear shift device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278459U true CN209278459U (en) | 2019-08-20 |
Family
ID=67601195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821874123.8U Expired - Fee Related CN209278459U (en) | 2018-11-14 | 2018-11-14 | A kind of electric vehicle automatic transmission gear shift device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357004A (en) * | 2018-11-14 | 2019-02-19 | 江苏易行车业有限公司 | A kind of electric vehicle automatic transmission gear shift device |
-
2018
- 2018-11-14 CN CN201821874123.8U patent/CN209278459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357004A (en) * | 2018-11-14 | 2019-02-19 | 江苏易行车业有限公司 | A kind of electric vehicle automatic transmission gear shift device |
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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 |
Granted publication date: 20190820 Termination date: 20201114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |