CN206845858U - Electric car Double speed variable speed mechanism - Google Patents
Electric car Double speed variable speed mechanism Download PDFInfo
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- CN206845858U CN206845858U CN201720837024.1U CN201720837024U CN206845858U CN 206845858 U CN206845858 U CN 206845858U CN 201720837024 U CN201720837024 U CN 201720837024U CN 206845858 U CN206845858 U CN 206845858U
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- gear
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- clutch cover
- shift
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Abstract
A kind of electric car Double speed variable speed mechanism is the utility model is related to, including：Input shaft, driven by motor, one grade of master gear and two grades of master gears are arranged with input shaft；Transition axis, it is be arranged in parallel with input shaft, one grade is arranged with transition axis successively from gear, clutch cover, two grades from gear, two grades are and the integrally formed gear shaft of transition axis below gear, one grade is engaged from gear with one grade of master gear, two grades are engaged from gear with two grades of master gears, and one grade can rotate from gear and two grades from gear around transition axis；Clutch cover transition axis can be moved axially so as to be engaged respectively with one grade from gear or two grades from gear relatively；Output shaft, it is connected with wheel hub and with input shaft on same axis, output gear is arranged with output shaft, output gear engages with gear shaft；And drive the shifter of clutch cover movement.For output shaft of the present utility model with input shaft on same axis, structure is novel, has expanded the application scenario of Double speed variable speed mechanism.
Description
Technical field
It the utility model is related to a kind of speed change gear, and in particular to a kind of electric car Double speed variable speed mechanism.
Background technology
The power of original battery-operated motor cycle, by DC motor Driver, (reach several because the output speed of direct current generator is higher
Between thousand revs/min to 10,000 revs/min), this rotating speed can not be fed directly on the wheel hub of battery-operated motor cycle to transmit
Power, therefore, the dynamic design of originally battery-operated motor cycle is such：The rotating speed of direct current generator is inputed into a reductor
Structure, the rotating speed of direct current generator is reduced to the requirement of design by speed decreasing mechanism while lifts moment of torsion, then this rotating speed is passed to
Wheel hub, produce the power for making vehicle advance.
This reduces then fixation reducing gear that the rotating speed of direct current generator inputs to wheel hub by speed decreasing mechanism, and it is lacked
Fall into as single reduction of speed data can only be realized.And during the actual use of battery-operated motor cycle, a variety of roads can be encountered
Condition, environment, such as upward slope, level road, descending, heavy load, middle load, underload etc..When battery-operated motor cycle is travelled in uphill way
Or in the case of heavy load, its rotating speed is too high and moment of torsion is insufficient, may result in DC overload ablation；And when vehicle traveling is flat
Under ways section or light load conditions, the rotating speed that can find it again is too low and moment of torsion is excessive causes not reaching desired speed；Further,
This fixed speed decreasing mechanism can not well adapt to rotating speed and torque demand of the vehicle when being fully loaded with and being unloaded.Finally, this
Plant endurance of the mechanisms influence grade climbing performance of battery-operated motor cycle, load-carrying ability, acceleration and battery etc..
In view of the above-mentioned problems, patent CN103115114A (Patent No. ZL201310063454.9) discloses one kind《From
Move a grade electric vehicle gear box》, electric vehicle gear box is interior to be provided with main motor, gear shifting motor, the gear of transmission gear shift motor power
Group, the selector being fixedly connected by the screw rod of gear train transfer motion power, the shift fork moved axially along a screw, shift fork, one grade of input
Gear, one grade of output gear, two grades of input gears, two grades of output gears, velocity sensor and controller, pass through one grade of input tooth
Take turns and to be engaged with one grade of output gear, or two grades of input gears and two grades of output gears engage, and realize the two of electric automobile
The conversion of kind speed.But current Double speed variable speed mechanism is most as shown in the patent, one-level input gear axle, two level spline
Axle, tertiary gear axle be arranged in parallel, lack novelty, and the structure also limit the configuration design of gearbox, limit it
Diversity and the occasion of application, therefore the structure of current Double speed variable speed mechanism needs further to improve.
Utility model content
Technical problem to be solved in the utility model is the present situation for prior art, provides a kind of electric car in addition and uses
Double speed variable speed mechanism, its output shaft is with input shaft on same axis.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of electric car Double speed variable speed machine
Structure, it is characterised in that including：
Input shaft, driven by motor, one grade of master gear and two grades of master gears are arranged with input shaft；
Transition axis, it is be arranged in parallel with input shaft, is arranged with one grade on transition axis successively from gear, clutch cover, two grades from tooth
Wheel, described two grades below the gear be with the integrally formed gear shaft of transition axis, described one grade is nibbled from gear and one grade of master gear
Close, two grades are engaged from gear with two grades of master gears, and one grade can rotate from gear and two grades from gear around transition axis；The clutch
Set transition axis can be moved axially so as to be engaged respectively with one grade from gear or two grades from gear relatively；
Output shaft, it is connected with wheel hub and with input shaft on same axis, output gear is arranged with output shaft, is exported
Gear engages with gear shaft；And
Shifter, including gear shifting motor, shift fork that clutch cover moves axially along transition axis and transmission can be driven to change
Power to the shift fork of shelves motor makes the transmission mechanism that shift fork moves, and described shift fork one end is connected with transmission mechanism, the other end and from
Trap connects.
As a further improvement, being provided with neck on the periphery wall of the clutch cover, end and the neck of the shift fork are formed
Connect and fix, realize that clutch cover moves axially under the drive of shift fork along transition axis, and snapping connection is being moved through clutch cover
Operated steadily in journey, with first gear or second gear precise match.
Improve again, described one grade is fixed with first gear from gear, and described two grades are fixed with second gear from gear,
Between first gear and second gear, the first gear can engage the clutch cover with second gear with clutch cover.
By engaging so as to transmit power to one grade from gear or two grades from gear for clutch cover and first gear or second gear, realize
The conversion of first gear speed and second speed.
Improve again, the first gear is shaped in one grade from gear, and the second gear is shaped in two grades
From gear, prevent first gear from from gear matching loose, influenceing power transmission with two grades from gear, second gear with one grade,
And convenient manufacture, it is not necessary to which connector is assembled.
Improve again, the transmission mechanism includes gear train and worm screw, and described worm screw one end is connected with gear train, shift fork connection
In can move axially on worm screw and along worm screw, the gear train includes gear shift input gear, gear shift output gear and duplex-gear
Wheel, gear shift input gear are located at gear shifting motor output end, and gear shift one-stage gear and the gear shift input gear of duplicate gear bottom are nibbled
Close, the gear shift secondary gear on duplicate gear top engages with gear shift output gear, and gear train drives in the presence of gear shifting motor
Worm screw rotates, so as to which the shift fork being connected on worm screw moves axially along worm screw, to drive clutch cover to be moved axially along transition axis.
Improve again, described one grade from gear and two grades from gear by bearing and transition axis connection, with can be around transition
Axle rotates.
Compared with prior art, the advantages of the utility model：1. output shaft of the present utility model is with input shaft located at same
On axis, structure is novel, gearbox is provided with different contour structures compared to prior art, has expanded Double speed variable speed mechanism
Application scenario；2. being connected and fixed by shift fork with clutch cover makes clutch cover steadily be moved axially along transition axis, with the first tooth
Wheel or second gear engagement are good.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is Fig. 1 top view；
Fig. 3 is the structural representation of the other direction of the utility model embodiment；
Fig. 4 is the sectional view of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figures 1-4, the electric car of this preferred embodiment includes 1, one grade of master gear of input shaft with Double speed variable speed mechanism
11st, two grades of master gears 12,2, one grades of transition axis are from 21, two grades of gear from gear 23, gear shaft 24, output gear 31, clutch cover
22 and shifter.
Input shaft 1 is driven by motor and is arranged with one grade of master gear 11 and two grades of master gears 12 on input shaft 1；Transition axis 2
It is be arranged in parallel with input shaft 1, is arranged with one grade on transition axis 2 successively from gear 21,22, two grades of clutch cover from gear 23, one grade
It is connected and can be rotated around transition axis 2 with transition axis 2 by needle bearing from gear 23 from gear 21 and two grades；One grade from tooth
Wheel 21 is engaged with one grade of master gear 11, and two grades are engaged from gear 23 with two grades of master gears 12；Output shaft 3 be connected with wheel hub and with it is defeated
Enter axle 1 on same axis, output gear 31 is arranged with output shaft 3, two grades are and the one of transition axis 2 from the lower section of gear 23
The gear shaft 24 of shaping, output gear 31 engage with gear shaft 24.
Shifter includes gear shifting motor 41, the gear train of the power of transmission gear shift motor 41, by gear train transfer motion power
Worm screw 43, the shift fork 44 being axially moved along worm screw 43, gear train one end are connected with gear shifting motor 41, and the other end connects with worm screw 43
Connect, the one end of shift fork 44 is connected on worm screw 43 and can moved axially along worm screw 43, and the other end is connected with clutch cover 22 and can driven
Clutch cover 22 moves axially along transition axis 2.Neck 221 is provided with the periphery wall of clutch cover 22, shift fork 44 is formed with neck 221
Connect and fix, so that clutch cover 22 steadily moves.
Wherein gear train includes gear shift input gear 421, gear shift output gear 422 and duplicate gear 423, gear shift input
Gear 421 is located at the output end of gear shifting motor 41, and gear shift one-stage gear and the gear shift input gear 421 of the bottom of duplicate gear 423 are nibbled
Close, the gear shift secondary gear on the top of duplicate gear 423 is engaged with gear shift output gear 422, and gear shift output gear 422, which rotates, to be driven
Worm screw 43 rotates, so that shift fork 44 moves along worm screw 43.Gear train may be alternatively provided as other modes, such as by duplicate gear
423 replace with intermeshing gear shift one-stage gear and gear shift secondary gear, can still realize the function of gear train.
One grade forms first gear 211 from the end of gear 21, and two grades form second gear 231 from the end of gear 23,
Clutch cover 22 is between first gear 211 and second gear 231, first gear 211 and second gear 231 energy and clutch cover
22 engagements.Internal tooth can be such as set on the internal perisporium of clutch cover 22, and first gear 211 can be nibbled with second gear 231 with internal tooth
Close to transmit power to one grade from gear 21 or two grades from gear 23.
It is preferred embodiment of the present utility model that first gear 211, second gear 231, which are taken shape in from gear, can be made
Power more smoothly transmits, and also it can be made to be fixedly connected with from gear by other connectors certainly, or from gear
The tooth that can be engaged with clutch cover 22 is set on the end face contacted with clutch cover 22.
The Double speed variable speed mode of the present embodiment is as follows：Shift motor 41 receives come from the signal of vehicle control device after,
The power of gear train transmission gear shift motor 41 drives worm screw 43 to rotate, and shift fork 44 drives clutch cover 22 with respect on transition axis 2 therewith
Lower movement.When clutch cover 22, which is moved upward to, to be engaged with first gear 211, whole speed changer motion is one grade, and power is through one
11, one grades of shelves master gear passes to wheel hub from gear 21, gear shaft 24, output gear 31, slows down bigger, speed is slower；When
Clutch cover 22 moves downwardly to when being engaged with second gear 231, and power is through 12, two grades of two grades of master gears from gear 23, gear shaft
24th, output gear 31 passes to wheel hub, and whole speed changer motion is two grades, is slowed down smaller, speed is very fast.
The input shaft 1 of the present embodiment, output shaft 3, the end of transition axis 2 are by bearing to be installed on gearbox or electronic
On the miscellaneous part of car.
The present embodiment can two kinds of speed carry out speed changes, meet the needs of client significantly.Exported in direct current generator to wheel
During hub, the reduction of speed adjustment processing of two gears is realized：One is low speed, high torque, and another is high speed, low torsion
Square, this makes it possible to make the ability that vehicle adapts to road conditions and load well, maximized the output performance of direct current generator
Performance；Also, due to rationally having handled the relation between road conditions and load and power output, also the power consumption of motor is obtained
Decline, that is, improve the utilization benefit of direct current generator.
Claims (6)
- A kind of 1. electric car Double speed variable speed mechanism, it is characterised in that including：Input shaft (1), is driven by motor, and one grade of master gear (11) and two grades of master gears (12) are arranged with input shaft (1)；Transition axis (2), it is be arranged in parallel with input shaft (1), is arranged with one grade on transition axis (2) successively from gear (21), clutch cover (22), two grades from gear (23), described two grades below gear (23) be with transition axis (2) integrally formed gear shaft (24), Described one grade is engaged from gear (21) with one grade of master gear (11), and two grades are engaged from gear (23) with two grades of master gears (12), and one Shelves can rotate from gear (21) and two grades from gear (23) around transition axis (2)；The clutch cover (22) can relative transition axis (2) Axial movement from gear (21) or two grades with one grade from gear (23) so as to engage respectively；Output shaft (3), it is connected with wheel hub and with input shaft (1) on same axis, output shaft is arranged with output gear on (3) (31), output gear (31) engages with gear shaft (24)；AndShifter, including gear shifting motor (41), shift fork (44) that clutch cover (22) can be driven to be moved axially along transition axis (2) And the power of transmission gear shift motor (41) to shift fork (44) makes the mobile transmission mechanism of shift fork (44), described shift fork (44) one end It is connected with transmission mechanism, the other end is connected with clutch cover (22).
- 2. electric car according to claim 1 Double speed variable speed mechanism, it is characterised in that：The periphery of the clutch cover (22) Neck (221) is provided with wall, the end of the other end of the shift fork (44) is formed with neck (221) to be connected and fixed.
- 3. electric car according to claim 2 Double speed variable speed mechanism, it is characterised in that：Described one grade from gear (21) First gear (211) is fixed with, described two grades are fixed with second gear (231), clutch cover (22) position from gear (23) Between first gear (211) and second gear (231), the first gear (211) and second gear (231) energy and clutch Cover (22) engagement.
- 4. electric car according to claim 3 Double speed variable speed mechanism, it is characterised in that：The first gear (211) one It is body formed in one grade from gear (21), the second gear (231) is shaped in two grades from gear (23).
- 5. electric car according to claim 1 Double speed variable speed mechanism, it is characterised in that：The transmission mechanism includes gear Group and worm screw (43), described worm screw (43) one end are connected with gear train, and shift fork (44) is connected on worm screw (43) and can be along worm screw (43) move axially, the gear train includes gear shift input gear (421), gear shift output gear (422) and duplicate gear (423), gear shift input gear (421) is located at gear shifting motor (41) output end, the gear shift one-stage gear of duplicate gear (423) bottom Engaged with gear shift input gear (421), gear shift secondary gear and the gear shift output gear (422) on duplicate gear (423) top are nibbled Close.
- 6. electric car according to claim 1 Double speed variable speed mechanism, it is characterised in that：Described one grade from gear (21) and Two grades are connected from gear (23) by bearing (5) with transition axis (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837024.1U CN206845858U (en) | 2017-07-11 | 2017-07-11 | Electric car Double speed variable speed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837024.1U CN206845858U (en) | 2017-07-11 | 2017-07-11 | Electric car Double speed variable speed mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845858U true CN206845858U (en) | 2018-01-05 |
Family
ID=60803964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720837024.1U Expired - Fee Related CN206845858U (en) | 2017-07-11 | 2017-07-11 | Electric car Double speed variable speed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143643A (en) * | 2017-07-11 | 2017-09-08 | 宁波格特力普驱动科技有限公司 | Electric car Double speed variable speed mechanism |
-
2017
- 2017-07-11 CN CN201720837024.1U patent/CN206845858U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143643A (en) * | 2017-07-11 | 2017-09-08 | 宁波格特力普驱动科技有限公司 | Electric car Double speed variable speed mechanism |
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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: 20180105 Termination date: 20190711 |