CN107953966A - A kind of centre wheel fixes centre shaft variable speed device - Google Patents
A kind of centre wheel fixes centre shaft variable speed device Download PDFInfo
- Publication number
- CN107953966A CN107953966A CN201711394327.1A CN201711394327A CN107953966A CN 107953966 A CN107953966 A CN 107953966A CN 201711394327 A CN201711394327 A CN 201711394327A CN 107953966 A CN107953966 A CN 107953966A
- Authority
- CN
- China
- Prior art keywords
- pallet piece
- axis
- centre
- variable speed
- piece frame
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000013016 damping Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
The present invention relates to a kind of centre wheel to fix centre shaft variable speed device, including：Axis,Case of transmission,Power output wheel and the planet speed change mechanism and gearshift being arranged between axis and case of transmission,The both ends of the axis are connected with stampede part respectively,The planet speed change mechanism includes centre wheel,Planet carrier,Planetary gear and gear ring,The centre wheel is fixedly connected with vehicle frame or damping is connected,The planet carrier is sheathed on axis and can be relative to central axis,The gear ring is arranged in transmission case body and is fixedly connected with case of transmission,The power output wheel is fixedly connected with gear ring or planet carrier,The gearshift includes the pallet piece frame being arranged on axis,At least one pallet piece being installed on pallet piece frame,The first ratchet being arranged on planet carrier and the second ratchet being arranged on case of transmission,The pallet piece frame is equipped with the elastic component for being used for controlling pallet piece initial position,So as to enormously simplify structure,Reduce manufacture cost.
Description
【Technical field】
The present invention relates to bicycle art, more particularly to a kind of centre wheel to fix centre shaft variable speed device.
【Background technology】
Bicycle speed-varying unit includes internal speed changer and outer speed changer, outer speed changer because exposed therefore get rusty easily outside,
Easily hit, the use of internal speed changer can effectively solve the above problems, and the internal speed changer of relatively early stage is arranged on front axle
Or on hind axle, cause front axle complex with the structure of hind axle, later in order to solve this technical problem, industry is expected
Internal speed changer is arranged on axis (trampling axis), so as to can not only realize speed change, but also front axle, hind axle can be greatly simplified
Structure, centre shaft variable speed device of the prior art uses spline moving gear shift mostly, and difficulty of not only shifting gears is big, but also also needs to
Freewheel clutch is set in front axle or hind axle, so as to add manufacture difficulty, improves manufacture cost.
It is therefore desirable to provide a kind of centre wheel for solving above-mentioned technical problem to fix centre shaft variable speed device.
【The content of the invention】
To be fixed to solve the above problems, it is an object of the invention to provide a kind of simple in structure, convenient centre wheel of gearshift
Centre shaft variable speed device.
To achieve the above object, the technical solution taken of the present invention is：A kind of centre wheel fixes centre shaft variable speed device, including：
Axis, case of transmission, power output wheel and the planet speed change mechanism being arranged between axis and case of transmission and gearshift machine
Structure, the both ends of the axis are connected with stampede part respectively, and the planet speed change mechanism includes centre wheel, planet carrier, planetary gear
And gear ring, the centre wheel is fixedly connected with vehicle frame or damping is connected, and the planet carrier is sheathed on axis and can be in
Axis rotates, and the gear ring is arranged in transmission case body and is fixedly connected with case of transmission, the power output wheel and gear ring
Or planet carrier is fixedly connected, the gearshift include be arranged on axis on pallet piece frame, be installed on pallet piece frame at least
One pallet piece, the first ratchet being arranged on planet carrier and the second ratchet being arranged on case of transmission, the pallet piece
Frame is equipped with the elastic component for being used for controlling pallet piece initial position.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：The pallet piece frame with
Axis is integrally formed or is fixedly connected.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：The pallet piece frame with
Radially synchronous rotation, axially movable connection are formed between axis.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：The axis is equipped with
Strip boss, is equipped with the pallet piece frame and the matched groove of strip boss.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：The one of the speed changer
End, which is equipped with, dials bar, and resetting spring is equipped between the pallet piece frame and centre wheel.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：It is equipped with the axis
What is axially extended dials bar mounting hole and the connecting pin loose slot radially extended, and described group of bar mounting hole is lived with connecting pin
Dynamic groove connects, and is provided with described group of bar mounting hole and dials bar, is provided with the connecting pin loose slot for connecting spine
Bluff piece frame and the connecting pin for dialling bar, so that pallet piece frame is synchronized with the movement with dialling bar realization.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：Described group of bar installation
Hole is vertical setting with connecting pin loose slot.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：The pallet piece includes
The mounting portion that is installed on pallet piece frame and with the first ratchet or the matched pawl portion of the second ratchet, set on the pallet piece frame
Have the first container matched with pallet piece mounting portion and with matched second container in pallet piece pawl portion, described second
The both sides of container are equipped with and the matched block in pawl portion.
Preferably, a kind of centre wheel in the present invention is fixed centre shaft variable speed device and is further arranged to：First container
Axially penetrate through pallet piece or extend at the block of the second container side.
Compared with prior art, the present invention has the advantages that：Centre wheel in the present invention fixes centre shaft variable speed device
It is simple in structure, easy for installation, shift gears by using pawl type, can make not having to set overdrive clutch in front axle or hind axle
Device, so as to enormously simplify structure, reduces manufacture cost, and compared with the prior art in spline gearshift, in the present invention
Pawl type gearshift reliability higher, gearshift it is lighter.
【Brief description of the drawings】
Fig. 1 is the main structure diagram that centre wheel fixes centre shaft variable speed device in the embodiment of the present invention 1.
Fig. 2 is the schematic cross-sectional view that centre wheel fixes centre shaft variable speed device in the embodiment of the present invention 1.
Fig. 3 is the decomposition texture schematic diagram that centre wheel fixes centre shaft variable speed device in the embodiment of the present invention 1.
Fig. 4 is the main structure diagram that centre wheel fixes centre shaft variable speed device in the embodiment of the present invention 2.
Fig. 5 is the main structure diagram that centre wheel fixes centre shaft variable speed device in the embodiment of the present invention 3.
In figure：1st, axis, 10, strip boss, 11, dial bar mounting hole, 12, connecting pin loose slot, 120, connecting pin,
2nd, case of transmission, 20, bearing block, 3, planet speed change mechanism, 30, centre wheel, 31, planet carrier, 32, planetary gear, 33, gear ring,
4th, gearshift, 40, pallet piece frame, the 400, first container, the 401, second container, 402, block, 403, groove, 404, bullet
Property part, 41, pallet piece, 410, mounting portion, 411, pawl portion, the 42, first ratchet, the 43, second ratchet, 5, stampede part, 6, power
Output wheel, 7, vehicle frame, 8, dial bar, 9, resetting spring.
【Embodiment】
It is further detailed that centre shaft variable speed device work is fixed to a kind of centre wheel of the present invention below by specific embodiment
Thin description.
To join shown in Fig. 1 to Fig. 3, a kind of centre wheel fixes centre shaft variable speed device, including：Axis 1, case of transmission 2 and setting
Planet speed change mechanism 3 and gearshift 4 between axis 1 and case of transmission 2, the both ends of the axis 1 are respectively with trampling
Part 5 is connected, and the case of transmission 2 is equipped with power output wheel 6, and the power output wheel 6 is fixed with case of transmission 2 to be connected
Connect.
The planet speed change mechanism 3 includes centre wheel 30, planet carrier 31, planetary gear 32 and gear ring 33, the centre wheel 30
It is fixedly connected with vehicle frame 7 or damping is connected, the planet carrier 31 is sheathed on axis 1 and can be rotated relative to axis 1, the tooth
Circle 33 is arranged in case of transmission 2 and is fixedly connected with case of transmission 2.In the present embodiment, the power output wheel 6
It is fixedly connected with case of transmission 2, case of transmission 2 is fixedly connected with gear ring 33, certainly in other implementations, described
Power output wheel 6 also can be directly fixedly connected with planet carrier 31, can equally realize the present invention.
The gearshift 4 include be arranged on axis 1 on pallet piece frame 40, be installed on it is at least one on pallet piece frame 40
Pallet piece 41, the first ratchet 42 being arranged on planet carrier 31 and the second ratchet 43 being arranged on case of transmission 2, in this reality
Apply the first ratchet 42 described in mode to be integrally formed with planet carrier 31, second ratchet 43 passes through spline with case of transmission 2
Connection, which is realized, to be fixed, the pallet piece 41 include being installed on mounting portion 410 on pallet piece frame 40 and with the first ratchet 42 or the
Two ratchets, 43 matched pawl portion 411, the pallet piece frame 40 are equipped with and 41 mounting portion 410 matched first of pallet piece
Container 400 and with 41 pawl portion of pallet piece, 411 matched second container 401, the both sides of second container 401 are set
There is block 402 matched with pawl portion 411, the block 402 can prevent pallet piece 41 from departing from after being installed on pallet piece frame 40,
First container 400 axially penetrates through pallet piece frame 40 or extends at the block 402 of 401 side of the second container, so that
Can conveniently it manufacture, the pallet piece frame 40 is equipped with the elastic component 404 for being used for controlling 41 initial position of pallet piece.The pallet piece
Radially synchronous rotation, axially movable connection are formed between frame 40 and axis 1, in the present embodiment, the axis 1 is equipped with
Strip boss 10, the pallet piece frame 40 is interior to be equipped with groove 403 matched with strip boss 10, certainly other real
Apply in mode also can realize the synchronous rotation of the radial direction between pallet piece frame 40 and axis 1, axially-displaceable using other structures
Dynamic connection, can equally realize the present invention.Bearing block 20, the axis are equipped between one end of the case of transmission 2 and axis 1
It is provided with 20 in bearing and dials bar 8 with what pallet piece frame 40 abutted against, is equipped between the pallet piece frame 40 and centre wheel 30
Resetting spring 9.
The operation principle of speed changer is in the present embodiment：During one gear, bar 8 is dialled in axial movement, and pallet piece frame 40 is with dialling gear
The synchronous axial movement of bar 8, makes the pallet piece 41 on pallet piece frame 40 be meshed with the first ratchet 42 on planet carrier 31, stampede part
To axis 1, since axis 1 and pallet piece frame 40 radially rotate synchronously connection, pallet piece frame 40 rotates 5 passing powers, leads to
The pallet piece 41 crossed on pallet piece frame 40 is meshed with the first ratchet 42 on planet carrier 31, and planet carrier 31 rotates, planet carrier 31
Rotated by the transmission belt moving teeth circle 33 of planetary gear 32, since gear ring 33 is fixedly connected with case of transmission 2, case of transmission 2
It is fixedly connected again with power output wheel, therefore case of transmission 2 drives power output wheel to rotate, power output wheel is defeated into action edge
Go out.During two gears, bar 8 is dialled in axial movement, and the axial movement synchronous with dialling bar 8 of pallet piece frame 40, makes the spine on pallet piece frame 40
Bluff piece 41 is disengaged from the first ratchet 42 on planet carrier 31, and is meshed with the second ratchet 43 on case of transmission 2, is stepped on
5 passing power of part is stepped on to axis 1, since axis 1 and pallet piece frame 40 radially rotate synchronously connection, 40 turns of pallet piece frame
It is dynamic, it is meshed by the pallet piece 41 on pallet piece frame 40 with the second ratchet 43 on case of transmission 2, therefore case of transmission
2 rotate, since case of transmission 2 is fixedly connected with power output wheel 6,6 turns of the power output wheel of drive of case of transmission 2
Dynamic, power output wheel 6 carries out power output.
Embodiment 2
Join shown in Fig. 4, remaining structure in the present embodiment is same as Example 1, and difference is：In embodiment 1
In, one end of the case of transmission 2 is equipped with bearing block 20, is provided with what is abutted against with pallet piece frame 40 in the bearing block 20
Bar 8 is dialled, resetting spring 9 is equipped between the pallet piece frame 40 and centre wheel 30.And in the present embodiment, the axis 1
It is interior to be equipped with the connecting pin loose slot 12 for dialling bar mounting hole 11 and radially extend axially extended, described group of bar mounting hole
11 connect and are vertical setting with connecting pin loose slot 12, are provided with described group of bar mounting hole 11 and dial bar 8, the company
Connecting pin 120 for connecting pallet piece frame 40 with dialling bar 8 is installed, so that pallet piece frame 40 is with dialling in outbound loose slot 12
Bar 8 is realized and is synchronized with the movement.
Embodiment 3
Join shown in Fig. 5, remaining structure in the present embodiment is same as Example 1, and difference is：In embodiment 1
In, formed between the pallet piece frame 40 and axis 1 and radially rotated synchronously, axially movable connection, the case of transmission 2
One end is equipped with bearing block 20, is provided with the bearing block 20 and dials bar 8, the pallet piece frame with what pallet piece frame 40 abutted against
Resetting spring 9 is equipped between 40 and centre wheel 30.And in the present embodiment, the pallet piece frame 40 is integrally formed with axis 1,
Made by moving axially axis 1 on the first ratchet 42 or case of transmission 2 on the pallet piece 41 and planet carrier 31 on axis 1
The second ratchet 43 be meshed, realize gearshift, certainly in other implementations, pallet piece frame 40 can also be fixed with axis 1
Connection, can equally realize the present invention.
In conclusion the centre wheel fixation centre shaft variable speed device in the present invention is simple in structure, easy for installation, by using pawl
Formula is shifted gears, and can be made not having to set freewheel clutch in front axle or hind axle, so as to enormously simplify structure, be reduced manufacture
Cost, and compared with the prior art in spline gearshift, the present invention in pawl type gearshift reliability higher, gearshift it is lighter
Pine.
The principles and effects of the invention, and the implementation that part uses only is illustrated in the above embodiments
Example, not for the limitation present invention；It should be pointed out that for those of ordinary skill in the art, wound of the present invention is not being departed from
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (9)
1. a kind of centre wheel fixes centre shaft variable speed device, it is characterised in that including：Axis, case of transmission, power output wheel and set
The planet speed change mechanism and gearshift being placed between axis and case of transmission, the both ends of the axis respectively with stampede part phase
Connection, the planet speed change mechanism include centre wheel, planet carrier, planetary gear and gear ring, and the centre wheel is fixedly connected with vehicle frame
Or damping connection, the planet carrier are sheathed on axis and can be arranged at case of transmission relative to central axis, the gear ring
Interior and be fixedly connected with case of transmission, the power output wheel is fixedly connected with gear ring or planet carrier, the gearshift bag
Include the pallet piece frame on the axis, at least one pallet piece being installed on pallet piece frame, be arranged on planet carrier first
Ratchet and the second ratchet being arranged on case of transmission, the pallet piece frame, which is equipped with, to be used to control pallet piece initial position
Elastic component.
2. a kind of centre wheel as claimed in claim 1 fixes centre shaft variable speed device, it is characterised in that：The pallet piece frame and axis
It is integrally formed or is fixedly connected.
3. a kind of centre wheel as claimed in claim 1 fixes centre shaft variable speed device, it is characterised in that：The pallet piece frame and axis
Between formed radially rotate synchronously, axially movable connection.
4. a kind of centre wheel as claimed in claim 3 fixes centre shaft variable speed device, it is characterised in that：The axis is equipped with strip
Shape boss, is equipped with the pallet piece frame and the matched groove of strip boss.
5. a kind of centre wheel as claimed in claim 3 fixes centre shaft variable speed device, it is characterised in that：One end of the speed changer is set
Have and dial bar, resetting spring is equipped between the pallet piece frame and centre wheel.
6. a kind of centre wheel as claimed in claim 3 fixes centre shaft variable speed device, it is characterised in that：It is equipped with the axis along axis
Bar mounting hole and the connecting pin loose slot radially extended, described group of bar mounting hole and connecting pin loose slot are dialled to extension
Connect, be provided with described group of bar mounting hole and dial bar, be provided with the connecting pin loose slot for connecting pallet piece
Frame and the connecting pin for dialling bar, so that pallet piece frame is synchronized with the movement with dialling bar realization.
7. a kind of centre wheel as claimed in claim 6 fixes centre shaft variable speed device, it is characterised in that：The described group of bar mounting hole with
Connecting pin loose slot is vertical setting.
8. a kind of centre wheel as claimed in claim 1 fixes centre shaft variable speed device, it is characterised in that：The pallet piece includes installation
In the mounting portion on pallet piece frame and with the first ratchet or the matched pawl portion of the second ratchet, the pallet piece frame be equipped with
Matched first container of pallet piece mounting portion and with matched second container in pallet piece pawl portion, it is described second house
The both sides of groove are equipped with and the matched block in pawl portion.
9. a kind of centre wheel as claimed in claim 8 fixes centre shaft variable speed device, it is characterised in that：First container is axial
Through pallet piece or extend at the block of the second container side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394327.1A CN107953966A (en) | 2017-12-21 | 2017-12-21 | A kind of centre wheel fixes centre shaft variable speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394327.1A CN107953966A (en) | 2017-12-21 | 2017-12-21 | A kind of centre wheel fixes centre shaft variable speed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107953966A true CN107953966A (en) | 2018-04-24 |
Family
ID=61956603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711394327.1A Pending CN107953966A (en) | 2017-12-21 | 2017-12-21 | A kind of centre wheel fixes centre shaft variable speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107953966A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10257973B3 (en) * | 2002-12-12 | 2004-07-08 | Bernhard Magerl | Variable drive gearing for bicycle has drive ratio adjusted automatically in dependence on drive torque exerted on drive input shaft using planetary gearing with at least 2 sunwheels |
| CN101298275A (en) * | 2007-04-11 | 2008-11-05 | 什拉姆公司 | Mounting system for an internal bicycle transmission |
| EP2641820A2 (en) * | 2012-03-21 | 2013-09-25 | Sram, Llc. | Internal gear hub |
| CN205168799U (en) * | 2015-06-01 | 2016-04-20 | 翟军明 | In derailleur in shaft type bicycle |
| CN106985963A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | Single wheel drive three keeps off speed change gear |
| CN107244378A (en) * | 2017-06-14 | 2017-10-13 | 张家港川梭车业有限公司 | One kind three keeps off internal speed changer |
| CN207683709U (en) * | 2017-12-21 | 2018-08-03 | 张家港川梭车业有限公司 | A kind of centre wheel fixation centre shaft variable speed device |
-
2017
- 2017-12-21 CN CN201711394327.1A patent/CN107953966A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10257973B3 (en) * | 2002-12-12 | 2004-07-08 | Bernhard Magerl | Variable drive gearing for bicycle has drive ratio adjusted automatically in dependence on drive torque exerted on drive input shaft using planetary gearing with at least 2 sunwheels |
| CN101298275A (en) * | 2007-04-11 | 2008-11-05 | 什拉姆公司 | Mounting system for an internal bicycle transmission |
| EP2641820A2 (en) * | 2012-03-21 | 2013-09-25 | Sram, Llc. | Internal gear hub |
| CN205168799U (en) * | 2015-06-01 | 2016-04-20 | 翟军明 | In derailleur in shaft type bicycle |
| CN106985963A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | Single wheel drive three keeps off speed change gear |
| CN107244378A (en) * | 2017-06-14 | 2017-10-13 | 张家港川梭车业有限公司 | One kind three keeps off internal speed changer |
| CN207683709U (en) * | 2017-12-21 | 2018-08-03 | 张家港川梭车业有限公司 | A kind of centre wheel fixation centre shaft variable speed device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9435404B2 (en) | Multiple speed transmission | |
| US9915321B2 (en) | Multi-speed transmission | |
| US9068630B2 (en) | Multi-speed transmission | |
| US20150316128A1 (en) | Multi-Speed Transmission | |
| CN103573935A (en) | Multiple speed transmission | |
| US10704652B2 (en) | Power transmission apparatus for vehicle | |
| US8894531B2 (en) | Planetary gear train of automatic transmission for vehicles | |
| CN110857724A (en) | Power transmission device for vehicle | |
| US10371235B2 (en) | Multiple speed transmission | |
| CN207683709U (en) | A kind of centre wheel fixation centre shaft variable speed device | |
| CN106428402A (en) | Two-stage speed change driving device for bicycle | |
| CN105849438A (en) | Automatic transmission | |
| CN106985963B (en) | Single-wheel drive three-gear speed change device | |
| CN207712239U (en) | A kind of gear of axis three speed change gear | |
| CN109695668A (en) | Pure electric automobile two gear gearboxes and pure electric automobile | |
| CN207617920U (en) | A kind of gear ring fixation centre shaft variable speed device | |
| CN107953966A (en) | A kind of centre wheel fixes centre shaft variable speed device | |
| CN107933815A (en) | A kind of gear ring fixes centre shaft variable speed device | |
| EP2746085B1 (en) | Gear change device for a motor-vehicle | |
| EP2873890B1 (en) | Dependency transmission | |
| WO2011064985A1 (en) | Power transmission device | |
| US11255413B2 (en) | Power train for electric vehicle | |
| US11878590B2 (en) | Transmission arrangement | |
| CN207598823U (en) | A kind of centre wheel fixes two gear speed change gears | |
| CN209818711U (en) | Motor-driven auxiliary box structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180424 |
|
| RJ01 | Rejection of invention patent application after publication |