CN207417061U - One kind two keeps off speed change gear - Google Patents
One kind two keeps off speed change gear Download PDFInfo
- Publication number
- CN207417061U CN207417061U CN201721524618.3U CN201721524618U CN207417061U CN 207417061 U CN207417061 U CN 207417061U CN 201721524618 U CN201721524618 U CN 201721524618U CN 207417061 U CN207417061 U CN 207417061U
- Authority
- CN
- China
- Prior art keywords
- wheel
- drive shaft
- final drive
- inputting
- axle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses one kind two to keep off speed change gear, including：Final drive shaft and wheel,The final drive shaft is equipped with planetary transmission,Wheel for inputting mechanism and driving member,The wheel for inputting mechanism is arranged between planetary transmission and driving member,The wheel for inputting mechanism can be relatively rotated and moved axially compared with final drive shaft,The planetary transmission includes planet carrier,Planetary gear,Centre wheel and gear ring,In both the planet carrier and centre wheel,One of them is sheathed on final drive shaft and is fixedly connected or is integrally formed with final drive shaft,Another is sheathed on final drive shaft and can be rotated compared with final drive shaft,The gear ring is connected with vehicle frame,The driving member is integrally formed or is fixedly connected with final drive shaft,In both the planet carrier and centre wheel,One of them sets at least one first Meshing Pair between wheel for inputting mechanism,Second Meshing Pair there are one being set between the wheel for inputting mechanism and driving member,So as to simplify structure,Reduce manufacture cost.
Description
【Technical field】
The utility model is related to technical field of bicycles, and in particular to one kind two keeps off speed change gear.
【Background technology】
Joining shown in Fig. 1, Fig. 1 discloses a kind of two gears speed change gear of the prior art, including：Speed changer frame 1`,
The input shaft 2` and output shaft 3` being installed in speed changer frame 1`, the speed changer frame 1` is fixedly connected with vehicle frame or damping
It connects, there are two be equipped between driving wheel 4`, two driving wheel 4` for installation on the input shaft 2` in the speed changer frame 1`
There are two driven wheel 5`, two driving wheel 4` for installation on the input sprocket 6`, the output shaft 3` being fixedly connected with input shaft 2`
Inside be respectively equipped with internal spline, the input shaft 2` be equipped with the matched external splines of above-mentioned internal spline, it is defeated by moving axially
Enter axis 2` to realize gearshift, become between transmission output shaft 3` and axletree by differential mechanism and connection axis connection, this kind of structure
The defects of fast device, is：1st, this kind of speed changer is positioned on the basis of vehicle frame, causes speed changer location and installation more inconvenient, and
And position deviation is susceptible in installation process, so as to influence transmission stability, 2, this kind of transmission output shaft and axletree
Between pass through differential mechanism and connection axis connection so that entire speed changer structure becomes complex；3rd, this kind of speed change gear is set
Two axis of input shaft and output shaft, and set on input shaft there are two driving wheel, two driven wheels are set on output shaft, therefore
Structure is complex, adds manufacture difficulty.
Therefore, it is necessary to provide a kind of two gear speed change gears for solving above-mentioned technical problem.
【Utility model content】
To become to solve the above problems, the purpose of this utility model is to provide a kind of two gears simple in structure, easily manufactured
Speed variator.
Technical solution is used by a kind of the utility model：One kind two keeps off speed change gear, including：Final drive shaft and vehicle
Wheel, the both ends of the final drive shaft are connected respectively with wheel, and the final drive shaft is equipped with planetary transmission, wheel for inputting mechanism
And driving member, the wheel for inputting mechanism are arranged between planetary transmission and driving member, the wheel for inputting mechanism can be compared with master
Transmission shaft is relatively rotated and moved axially, and the planetary transmission includes planet carrier, planetary gear, centre wheel and gear ring, described
In both planet carrier and centre wheel, one of them is sheathed on final drive shaft and is fixedly connected or is integrally formed with final drive shaft,
Another is sheathed on final drive shaft and can be rotated compared with final drive shaft, and the gear ring is connected with vehicle frame, the driving member
With final drive shaft be integrally formed or be fixedly connected, in both the planet carrier and centre wheel, one of them and wheel for inputting mechanism it
Between at least one first Meshing Pair is set, set between the wheel for inputting mechanism and driving member there are one the second Meshing Pair.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The wheel for inputting mechanism includes
Axle sleeve and the wheel for inputting being sheathed on axle sleeve.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The final drive shaft is at least
It is connected between one end and wheel by wheel freewheel clutch.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The axle sleeve and wheel for inputting one
It is body formed or be fixedly connected.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The axle sleeve and wheel for inputting it
Between be equipped with wheel for inputting freewheel clutch.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：One end of the final drive shaft
It mutually fixes, is connected between the other end and wheel of the final drive shaft by bearing, between the wheel for inputting and axle sleeve with wheel
Equipped with wheel for inputting freewheel clutch.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The number of first Meshing Pair
It measures as one, and is arranged between centre wheel and axle sleeve or is arranged between planet carrier and axle sleeve, second Meshing Pair is set
Between axle sleeve and driving member.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The number of first Meshing Pair
It measures as one, and is arranged between centre wheel and wheel for inputting or is arranged between planet carrier and wheel for inputting, second Meshing Pair
It is arranged between axle sleeve and driving member.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：The number of first Meshing Pair
It measures as two, one of them first Meshing Pair is arranged between centre wheel and axle sleeve or is arranged between planet carrier and axle sleeve, separately
One the first Meshing Pair is arranged between centre wheel and wheel for inputting or is arranged between planet carrier and wheel for inputting, second engagement
Pair is arranged between axle sleeve and driving member.
Preferably, one kind two in the utility model is kept off speed change gear and is further arranged to：First Meshing Pair and
Two Meshing Pairs are spline engagement pair.
Compared with prior art, the utility model has the advantages that：Final drive shaft in the utility model is direct
It is connected with wheel, intermediate without being attached again by differential mechanism, so as to simplify structure, in addition entire variable speed drive is
It is positioned on the basis of axletree so that installation positioning is more convenient, ensure that good transmission stability, the utility model
In speed change gear a piece axis is only set, the middle speed change gear that two axis are set compared with the prior art, in the utility model
Speed change gear enormously simplifies structure, reduces manufacture difficulty, power 1 during speed change gear top gear in the utility model:1 is defeated
Go out, greatly reduce kinetic equation loss, and the speed change gear in the utility model can realize that reversing is acted in bottom gear.
【Description of the drawings】
Fig. 1 is the structure diagram of speed change gear in the prior art.
Fig. 2 is the dimensional structure diagram of variable speed drive in the utility model embodiment 1.
Fig. 3 is the schematic cross-sectional view of variable speed drive in the utility model embodiment 1.
Fig. 4 is the partial enlarged view at A in Fig. 3.
Fig. 5 is the decomposition texture schematic diagram of variable speed drive in the utility model embodiment 1.
Fig. 6 is the schematic cross-sectional view of variable speed drive in the utility model embodiment 2.
Fig. 7 is the partial enlarged view at B in Fig. 6.
Fig. 8 is the schematic cross-sectional view of variable speed drive in the utility model embodiment 3.
Fig. 9 is the partial enlarged view at C in Fig. 8.
In Fig. 1：1`, speed changer frame, 2`, input shaft, 3`, output shaft, 4`, driving wheel, 5`, driven wheel, 6`, input chain
Wheel.
Fig. 2 is into Fig. 9：1st, final drive shaft, 2, wheel, 20, wheel freewheel clutch, 3, planetary transmission, 30, center
Wheel, the 300, first external splines, the 301, the 3rd external splines, 31, planet carrier, 32, planetary gear, 33, gear ring, 4, wheel for inputting mechanism, 40,
Axle sleeve, the 400, first internal spline, the 401, second internal spline, the 402, the 3rd internal spline, 41, wheel for inputting, 42, wheel for inputting overdrive clutch
Device, 5, driving member, the 50, second external splines.
【Specific embodiment】
A kind of two gears speed change gear work described in the utility model is further retouched in detail below by specific embodiment
It states.
Embodiment 1
To join shown in Fig. 2 to Fig. 5, one kind two keeps off speed change gear, including：Final drive shaft 1 and wheel 2, on the final drive shaft 1
Equipped with planetary transmission 3, wheel for inputting mechanism 4 and driving member 5, the both ends of the final drive shaft 1 pass through vehicle between wheel 2 respectively
Wheel freewheel clutch 20 connects, and certainly in other implementations, passes through vehicle between one end of the final drive shaft and wheel
Freewheel clutch connection is taken turns, is connected between the other end and wheel by bearing, can equally realize the utility model, the input
Wheel mechanism 4 is arranged between planetary transmission 3 and driving member 5, and the wheel for inputting mechanism 4 includes axle sleeve 40 and is sheathed on axle sleeve 40
On wheel for inputting 41, in the present embodiment, between the wheel for inputting 41 and axle sleeve 40 be equipped with wheel for inputting freewheel clutch 42, when
So in other implementations, the axle sleeve 40 can be also integrally formed or be fixedly connected with wheel for inputting 41, can equally be realized
The utility model.
The planetary transmission 3 includes：Centre wheel 30, planet carrier 31, planetary gear 32 and gear ring 33,31 sets of the planet carrier
It is fixedly connected on final drive shaft 1 and with final drive shaft 1, the centre wheel 30 is sheathed on final drive shaft 1 and can be compared with
Final drive shaft 1 rotates, and the gear ring 33 is fixedly connected with vehicle frame or damping is connected.1 one of the driving member 5 and final drive shaft into
Type is fixedly connected.
The centre wheel 30 is being equipped with the first external splines 300 close to one end of axle sleeve 40, and the driving member 5 is close to axle sleeve
40 one end is equipped with the second external splines 50, and the axle sleeve 40 is sheathed on final drive shaft 1 and can make axial direction compared with final drive shaft 1
It is mobile, one end of the axle sleeve 40 be equipped with 300 matched first internal spline 400 of the first external splines, the axle sleeve 40 it is another
One end is equipped with and 50 matched second internal spline 401 of the second external splines.
The operation principle of speed change gear is in the present embodiment：During top gear, wheel for inputting mechanism 4 is moved right vertically,
So that the second internal spline 401 of axle sleeve 40 is meshed with the second external splines 50 on driving member 5, due to driving member 5 and main transmission
Axis 1 is fixedly connected, and therefore, after power is inputted by wheel for inputting 41, approach axle sleeve 40, driving member 5 are finally reached final drive shaft 1 simultaneously
Power output is carried out by the wheel 2 at 1 both ends of final drive shaft.During bottom gear, wheel for inputting mechanism 4 is moved axially to the left, is made
Second internal spline 401 of 40 one end of axle sleeve is disengaged from the second external splines 50 on driving member 5, and makes the of 40 one end of axle sleeve
One internal spline 400 is meshed with the first external splines 300 on centre wheel 30, and power is inputted by wheel for inputting 41, after approach axle sleeve 40
Centre wheel 30 is reached, then by the transmission of planetary gear 32, planet carrier 31 is imparted power to, due to planet carrier 31 and main transmission
Axis 1 is fixedly connected, thus power be ultimately transferred to final drive shaft 1 and pass through 1 both ends of final drive shaft wheel 2 it is defeated into action edge
Go out.In the present embodiment, between the axle sleeve 40 and centre wheel 30, between axle sleeve 40 and driving member 5 using spline come real
It now engages, certainly in other implementations, other engagement systems such as steel ball, pearl slot can also be used.
Embodiment 2
Join shown in Fig. 6 and Fig. 7, speed change gear remaining structure in the present embodiment is same as Example 1, and difference exists
In：In embodiment 1, connected respectively by wheel freewheel clutch between the final drive shaft both ends and wheel, with centre wheel
The first internal spline that upper first external splines is meshed is arranged on axle sleeve, and wheel for inputting can be set to surmount between wheel for inputting and axle sleeve
Clutch can also be not provided with wheel for inputting freewheel clutch, and in the present embodiment, one end and the wheel 2 of the final drive shaft 1
It is fixedly connected, is connected between the other end of the final drive shaft 1 and wheel 2 by bearing, with the first external splines on centre wheel 30
300 the first internal splines 400 being meshed are arranged on wheel for inputting 41, and must be provided with wheel for inputting between wheel for inputting 41 and axle sleeve 40
Freewheel clutch 42.The operation principle of speed change gear is in the present embodiment：During top gear, by wheel for inputting mechanism 4 vertically to the right
It is mobile so that the second internal spline of axle sleeve 40 is meshed with the second external splines 50 on driving member 5, due to driving member 5 and main biography
Moving axis 1 is fixedly connected, and therefore, after power is inputted by wheel for inputting 41, approach axle sleeve 40, driving member 5 are finally reached final drive shaft 1
And the wheel 2 for passing through 1 both ends of final drive shaft carries out power output.During bottom gear, wheel for inputting mechanism 4 is moved axially to the left,
Second internal spline 401 of 40 one end of axle sleeve is made to be disengaged from the second external splines 50 on driving member 5, and makes 41 one end of wheel for inputting
The first internal spline 400 be meshed with the first external splines 300 on centre wheel 30, power is inputted by wheel for inputting 41, centre wheel 30
It rotates, then by the transmission of planetary gear 32, planet carrier 31 is imparted power to, since planet carrier 31 and final drive shaft 1 are fixed
Connection, therefore power is ultimately transferred to final drive shaft 1 and passes through the progress power output of wheel 2 at 1 both ends of final drive shaft, it is defeated at this time
Enter to take turns freewheel clutch 42 and be in the servo-actuated state that do not work, when wheel for inputting 41 stops operating, wheel 2 stops operating, and plays brake
Vehicle function, when wheel for inputting 41 reverses, wheel 2 also reverses, and realizes reversing effect.
Embodiment 3
Join shown in Fig. 8 and Fig. 9, speed change gear remaining structure in the present embodiment is same as Example 2, and difference exists
In：Two Meshing Pairs are set altogether in example 2, one of Meshing Pair is arranged between centre wheel and wheel for inputting, another
Meshing Pair is arranged between axle sleeve and driving member, and sets three Meshing Pairs in present embodiment altogether, is nibbled for two in example 2
A Meshing Pair being arranged between axle sleeve 40 and centre wheel 30 is added on the basis of conjunction is secondary again, i.e., centre wheel 30, which is equipped with, is in
First external splines 300 of step-like setting and the 3rd external splines 301, the driving member 5 is equipped with the second external splines 50, described defeated
The one end for entering wheel 41 is equipped with and is equipped with and the with 300 matched first internal spline 400 of the first external splines, one end of the axle sleeve 40
Three external splines, 301 matched 3rd internal spline 402, the other end of the axle sleeve 40 is equipped with matched with the second external splines 50
Second internal spline 401, the operation principle of speed change gear is in present embodiment：During top gear, by wheel for inputting mechanism 4 vertically to
Move right so that the second internal spline 401 of axle sleeve 40 is meshed with the second external splines 50 on driving member 5, due to driving member 5 with
Final drive shaft 1 is fixedly connected, and therefore, after power is inputted by wheel for inputting 41, approach axle sleeve 40, driving member 5 are finally reached main transmission
Axis 1 and the progress power output of wheel 2 for passing through 1 both ends of final drive shaft.During bottom gear, by wheel for inputting mechanism 4 vertically to moving to left
It is dynamic, second internal spline 401 of 40 one end of axle sleeve is made to be disengaged from the second external splines 50 on driving member 5, and makes axle sleeve 40 1
3rd internal spline 402 at end is meshed with the 3rd external splines 301 on centre wheel 30, and power is inputted by wheel for inputting 41, centre wheel
30 rotate, and then by the transmission of planetary gear 32, impart power to planet carrier 31, since planet carrier 31 and final drive shaft 1 are solid
Fixed connection, therefore power is ultimately transferred to final drive shaft 1 and passes through the progress power output of wheel 2 at 1 both ends of final drive shaft, when need
When braking or moving backward, wheel for inputting mechanism 4 is moved axially to the left again so that the first internal spline 400 in wheel for inputting 41
It is meshed with the first external splines 300 on centre wheel 30, at this time on the 3rd internal spline 402 and centre wheel 30 of 40 one end of axle sleeve
3rd external splines 301 is also meshed, hence the wheel for inputting freewheel clutch 42 between wheel for inputting 41 and axle sleeve 40 is in not
Working condition, when wheel for inputting 41 stops operating, wheel 2 stops operating, and plays brake function, when wheel for inputting 41 reverses, vehicle
Wheel 2 also reverses, and realizes reversing effect.
In above three embodiment, the centre wheel 30 in planetary transmission 3 is to be sheathed on final drive shaft 1 and can be opposite
It is rotated in final drive shaft 1, the planet carrier 31 in planetary transmission 3 is fixedly connected or is integrally formed with final drive shaft 1, Meshing Pair
It is arranged between centre wheel 30 and wheel for inputting mechanism 4, certainly in other implementations, the centre wheel 30 in planetary transmission
Also it can be fixedly connected or be integrally formed with final drive shaft 1, the planet carrier 31 in planetary transmission 3 can also be sheathed on final drive shaft 1
It is upper and can be rotated compared with final drive shaft 1, and Meshing Pair is arranged between planet carrier 31 and wheel for inputting mechanism 4, it equally can be with
Realize the utility model.
In conclusion the final drive shaft in the utility model is directly connected with wheel, it is intermediate without again by differential mechanism into
Row connection, so as to simplify structure, in addition entire variable speed drive is positioned on the basis of axletree so that installation is fixed
Position is more convenient, ensure that good transmission stability, and the speed change gear in the utility model only sets an axis, compared to existing
There is the speed change gear that two axis are set in technology, the speed change gear in the utility model enormously simplifies structure, reduces manufacture
Difficulty, power 1 during speed change gear top gear in the utility model:1 output greatly reduces kinetic equation loss, and this practicality is new
Speed change gear in type can realize that reversing is acted in bottom gear.
The reality that the principles and effects of the utility model creation is only illustrated in the above embodiments and part uses
Example is applied, is rather than limited the present invention；It should be pointed out that for those of ordinary skill in the art, this is not being departed from
On the premise of utility model creates design, various modifications and improvements can be made, these belong to the protection of the utility model
Scope.
Claims (10)
1. one kind two keeps off speed change gear, which is characterized in that including：Final drive shaft and wheel, the both ends difference of the final drive shaft
It is connected with wheel, the final drive shaft is equipped with planetary transmission, wheel for inputting mechanism and driving member, and the wheel for inputting mechanism is set
It is placed between planetary transmission and driving member, the wheel for inputting mechanism can make to relatively rotate compared with final drive shaft and axial shifting
Dynamic, the planetary transmission includes planet carrier, planetary gear, centre wheel and gear ring, in both the planet carrier and centre wheel, wherein
One is sheathed on final drive shaft and is fixedly connected or is integrally formed with final drive shaft, another is sheathed on final drive shaft and can
It is rotated compared with final drive shaft, the gear ring is connected with vehicle frame, and the driving member is integrally formed with final drive shaft or fixed company
It connects, in both the planet carrier and centre wheel, one of them sets at least one first Meshing Pair, institute between wheel for inputting mechanism
State the second Meshing Pair there are one being set between wheel for inputting mechanism and driving member.
2. one kind two as described in claim 1 keeps off speed change gear, it is characterised in that：The wheel for inputting mechanism includes axle sleeve and set
Wheel for inputting on axle sleeve.
3. one kind two as claimed in claim 2 keeps off speed change gear, it is characterised in that：At least one end of the final drive shaft and vehicle
It is connected between wheel by wheel freewheel clutch.
4. one kind two as claimed in claim 3 keeps off speed change gear, it is characterised in that：The axle sleeve and wheel for inputting be integrally formed or
It is fixedly connected.
5. one kind two as claimed in claim 3 keeps off speed change gear, it is characterised in that：It is equipped between the axle sleeve and wheel for inputting defeated
Enter to take turns freewheel clutch.
6. one kind two as claimed in claim 2 keeps off speed change gear, it is characterised in that：One end of the final drive shaft and wheel phase
It is fixed, it is connected between the other end and wheel of the final drive shaft by bearing, input is equipped between the wheel for inputting and axle sleeve
Take turns freewheel clutch.
7. one kind two keeps off speed change gear as described in claim 4 or 5, it is characterised in that：The quantity of first Meshing Pair is
One, and be arranged between centre wheel and axle sleeve or be arranged between planet carrier and axle sleeve, second Meshing Pair is arranged at axis
Between set and driving member.
8. one kind two as claimed in claim 6 keeps off speed change gear, it is characterised in that：The quantity of first Meshing Pair is one
It is a, and be arranged between centre wheel and wheel for inputting or be arranged between planet carrier and wheel for inputting, second Meshing Pair is arranged at
Between axle sleeve and driving member.
9. one kind two as claimed in claim 6 keeps off speed change gear, it is characterised in that：The quantity of first Meshing Pair is two
A, one of them first Meshing Pair is arranged between centre wheel and axle sleeve or is arranged between planet carrier and axle sleeve, another
One Meshing Pair is arranged between centre wheel and wheel for inputting or is arranged between planet carrier and wheel for inputting, and second Meshing Pair is set
Between axle sleeve and driving member.
10. one kind two as described in claim 1 keeps off speed change gear, it is characterised in that：First Meshing Pair and the second engagement
Pair is spline engagement pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524618.3U CN207417061U (en) | 2017-11-15 | 2017-11-15 | One kind two keeps off speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524618.3U CN207417061U (en) | 2017-11-15 | 2017-11-15 | One kind two keeps off speed change gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207417061U true CN207417061U (en) | 2018-05-29 |
Family
ID=62306148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524618.3U Active CN207417061U (en) | 2017-11-15 | 2017-11-15 | One kind two keeps off speed change gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207417061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651099A (en) * | 2017-11-15 | 2018-02-02 | 张家港川梭车业有限公司 | One kind two keeps off speed change gear |
-
2017
- 2017-11-15 CN CN201721524618.3U patent/CN207417061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651099A (en) * | 2017-11-15 | 2018-02-02 | 张家港川梭车业有限公司 | One kind two keeps off speed change gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1898123B1 (en) | Continually-variable transmission | |
| CN106763565A (en) | It is suitable to the three gear planet speed change mechanisms that electric vehicle is used | |
| CN108019480B (en) | Vehicle and continuously variable transmission system thereof | |
| CN104477029B (en) | A kind of power drive system of two grades of electric automobiles | |
| CN101994785B (en) | Gear box with two drive converting mechanisms | |
| CN105849438A (en) | Automatic transmission | |
| CN109990060A (en) | Speed changer, power-driven system and vehicle | |
| CN207417061U (en) | One kind two keeps off speed change gear | |
| CN204647173U (en) | A kind of gearshift light car speed changer | |
| CN108454393A (en) | One kind two keeps off planet speed-change electric drive axle assembly | |
| CN109695668A (en) | Pure electric automobile two gear gearboxes and pure electric automobile | |
| CN206802213U (en) | A kind of portable gear of gearshift three speed change gear of Two-wheeled ratchet | |
| CN104791428B (en) | One kind gearshift light car speed changer | |
| WO2022257188A1 (en) | Tractor transmission | |
| CN107600302A (en) | A kind of transmission shaft output speed variator | |
| CN203957875U (en) | Transfer transmission device | |
| CN113978224A (en) | Double-motor double-gear electric drive axle | |
| CN107191592A (en) | Speed transmission drum gearshift type transmission assembly | |
| CN201240264Y (en) | Double differential intensifying rear axle for three-wheel motorcycle or four-wheel motorcycle | |
| CN107651099A (en) | One kind two keeps off speed change gear | |
| CN207421236U (en) | One kind two keeps off variable speed drive | |
| CN207609736U (en) | Tricycle dual-motor variable speed drive system | |
| CN207378072U (en) | A kind of centre wheel inputs two shift transmission of manual shift | |
| CN106321743A (en) | Speed-changing gearbox | |
| RU2554715C2 (en) | Planetary coordinating gear box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |