CN107972804A - A kind of back wheel direct drive variable speed drive - Google Patents
A kind of back wheel direct drive variable speed drive Download PDFInfo
- Publication number
- CN107972804A CN107972804A CN201711394328.6A CN201711394328A CN107972804A CN 107972804 A CN107972804 A CN 107972804A CN 201711394328 A CN201711394328 A CN 201711394328A CN 107972804 A CN107972804 A CN 107972804A
- Authority
- CN
- China
- Prior art keywords
- wheel
- driving
- shaft
- driven
- installing rack
- 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.)
- Granted
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention discloses a kind of back wheel direct drive variable speed drive, including：Vehicle frame, left back wheel shaft, off hind wheel axis, left rear wheel, off hind wheel and rear change mechanism, left installing rack and right installing rack are installed on the vehicle frame, the left back wheel shaft is fixedly connected with left installing rack, the off hind wheel axis is fixedly connected with right installing rack, the rear change mechanism is arranged at left installing rack position and/or at right installing rack position, the rear change mechanism driving left rear wheel wheel hub and/or off hind wheel wheel hub, so as to enormously simplify the structure of speed changer, are easily installed.
Description
【Technical field】
The present invention relates to bicycle art, more particularly to a kind of back wheel direct drive variable speed drive.
【Background technology】
With the fast development of tourist industry, double rear wheel bicycle application is also more and more extensive, double rear wheel of the prior art
Variable speed drive generally comprises vehicle frame, hind axle, trailing wheel and gear, and the vehicle frame includes two longerons and several horizontal strokes
Beam, is separately installed with mounting bracket on two longerons, and the hind axle is equipped with self-aligning bearing through mounting bracket and mounting bracket,
Gear installation frame is installed, the gear is installed on the frame, and the hind axle is should between two longerons
The power output shaft of gear, and the rear wheel at hind axle both ends is finally driven, the back wheel direct drive speed change of this kind of structure passes
The defects of dynamic device, is：1st, when the double rear wheel variable speed drive of this kind of structure works, hind axle is constantly in rotary state,
One of trailing wheel is driven, another trailing wheel is servo-actuated, or driving two trailing wheels to rotate at the same time at the same time, can not realize two
Trailing wheel separate transmission；2nd, between being installed on two longerons by installation frame due to gear, structure is complex, system
It is more inconvenient to make, and 3, due to being equipped with self-aligning bearing between mounting bracket and hind axle, hind axle is easily swung.
Therefore, it is necessary to provide a kind of back wheel direct drive variable speed drive for solving above-mentioned technical problem.
【The content of the invention】
To solve the above problems, it is an object of the invention to provide a kind of back wheel direct drive change simple in structure, easy for installation
Fast transmission device.
To achieve the above object, the technical solution taken of the present invention is：A kind of back wheel direct drive variable speed drive, including：
Vehicle frame, left back wheel shaft, off hind wheel axis, left rear wheel, off hind wheel and rear change mechanism, be provided with the vehicle frame left installing rack and
Right installing rack, the left back wheel shaft are fixedly connected with left installing rack, and the off hind wheel axis is fixedly connected with right installing rack, after described
Wheel gear is arranged at left installing rack position and/or at right installing rack position, and the rear change mechanism drives left rear wheel
Wheel hub and/or off hind wheel wheel hub.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The left back wheel shaft with
Off hind wheel axis is integrally formed or is fixedly connected.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The rear change machine
The quantity of structure is one, and the rear change mechanism includes：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, second are actively
Wheel, driving member, the first driven wheel and the second driven wheel, the wheel for inputting, the first driving wheel and the second driving wheel are sheathed on respectively
On driving shaft, the wheel for inputting is between the first driving wheel and the second driving wheel, between the wheel for inputting and the first driving wheel
Equipped with the first Meshing Pair, the second Meshing Pair, first driving wheel and first are equipped between the wheel for inputting and the second driving wheel
Connected by the first connector between driven wheel, connected between second driving wheel and the second driven wheel by the second connector
Connect, the driving member is sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel point
It is not fixedly connected with driving member, the rear change mechanism is arranged between left rear wheel wheel hub and left installing rack or off hind wheel wheel hub
Between right installing rack.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The rear change machine
The quantity of structure is two, including left rear wheel gear and off hind wheel gear, the left rear wheel gear are arranged at a left side
Between rear-wheel hub and left installing rack, the off hind wheel gear is arranged between off hind wheel wheel hub and right installing rack.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The left rear wheel speed change
Mechanism is identical with off hind wheel gear structure, includes：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, second are actively
Wheel, driving member, the first driven wheel and the second driven wheel, the wheel for inputting, the first driving wheel and the second driving wheel are sheathed on respectively
On driving shaft, the wheel for inputting is between the first driving wheel and the second driving wheel, between the wheel for inputting and the first driving wheel
Equipped with the first Meshing Pair, the second Meshing Pair, first driving wheel and first are equipped between the wheel for inputting and the second driving wheel
Connected by the first connector between driven wheel, connected between second driving wheel and the second driven wheel by the second connector
Connect, the driving member is sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel point
It is not fixedly connected with driving member, the driving shaft of the left rear wheel gear is installed in left installing rack, the off hind wheel speed change
The driving shaft of mechanism is installed in right installing rack, and the driving member of the left rear wheel gear is fixedly connected with left rear wheel wheel hub,
The driving member of the off hind wheel gear is fixedly connected with off hind wheel wheel hub.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The left installing rack, the right side
Mounting bracket is fixedly connected respectively with vehicle frame or damping is connected, and the first hollow shaft is equipped with the left installing rack, and the left rear wheel becomes
One end of the driving shaft of fast mechanism is contained in the first hollow shaft, and the other end extends the first hollow shaft, in the right installing rack
Equipped with the second hollow shaft, one end of the driving shaft of the off hind wheel gear is contained in the second hollow shaft, other end extension
Go out the second hollow shaft.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：The wheel for inputting includes
First axle sleeve and input wheel body, are equipped with freewheel clutch, first axle sleeve is arranged between first axle sleeve and input wheel body
In on driving shaft and can move axially and relatively rotate relative to driving shaft, internal spline is equipped with first axle sleeve.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：First driving wheel
Including the second axle sleeve and the first active wheel body, second axle sleeve is sheathed on driving shaft and can make opposite turn relative to driving shaft
It is dynamic, second axle sleeve and the first driving wheel body by integral forming or be fixedly connected, second axle sleeve equipped with and the first axle sleeve
Matched first external splines of internal spline, second driving wheel include the 3rd axle sleeve and the second active wheel body, the 3rd axis
It is sheathed on driving shaft and can be relatively rotated relative to driving shaft, the 3rd axle sleeve and the second driving wheel body by integral forming
Or be fixedly connected, the 3rd axle sleeve is equipped with matched second external splines of internal spline with the first axle sleeve.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：First driving wheel,
Second driving wheel, the first driven wheel and the second driven wheel are sprocket wheel or belt wheel, and first connector, the second connector are chain
Or transmission belt.
Preferably, a kind of back wheel direct drive variable speed drive in the present invention is further arranged to：After the driven shaft is
Wheel shaft.
Compared with prior art, the present invention has the advantages that：Back wheel direct drive variable speed drive in the present invention
By the way that driving shaft is arranged in the hollow shaft of dynamic mount, the structure of speed changer is enormously simplify, is easily installed, in the present invention
Back wheel direct drive variable speed drive directly drives hub rotation, and axletree is fixedly connected with dynamic mount, and disc brake sheet is installed on wheel hub
Not swung with vehicle frame afterwards, two trailing wheels of back wheel direct drive variable speed drive can realize that independent power is driven in the present invention,
Can at the same time input power or single input power.
【Brief description of the drawings】
Fig. 1 is the structure diagram of back wheel direct drive variable speed drive in the present invention.
Fig. 2 is the partial enlarged view at A in Fig. 1.
Fig. 3 is the decomposition texture schematic diagram of left rear wheel gear in the present invention.
Fig. 1 is into Fig. 3：1st, vehicle frame, 2, hind axle, 3, left rear wheel, 4, off hind wheel, 5, left rear wheel gear, 50, actively
Axis, 51, driven shaft, 52, wheel for inputting, the 520, first axle sleeve, 521, input wheel body, 522, internal spline, the 53, first driving wheel,
530th, the second axle sleeve, the 531, first active wheel body, the 532, first external splines, the 54, second driving wheel, the 540, the 3rd axle sleeve, 541,
Second active wheel body, the 542, second external splines, 55, driving member, the 56, first driven wheel, the 57, second driven wheel, 6, off hind wheel becomes
Fast mechanism, 7, left installing rack, the 70, first hollow shaft, 8, right installing rack, the 80, second hollow shaft.
【Embodiment】
A kind of back wheel direct drive variable speed drive of the present invention is made below by specific embodiment further detailed
Thin description.
As shown in Figure 1 to Figure 3, a kind of back wheel direct drive variable speed drive, including：Vehicle frame 1, left back wheel shaft, off hind wheel axis,
Left rear wheel 3, off hind wheel 4, left rear wheel gear 5 and off hind wheel gear 6, in the present embodiment the left back wheel shaft with
Off hind wheel axis, which is integrally formed, collectively constitutes hind axle 2, certainly in other implementations, the left back wheel shaft and off hind wheel axis
Also it can be separately provided, left installing rack 7 and right installing rack 8 are installed on the vehicle frame 1, the left installing rack 7, right installing rack 8 are divided
It is not fixedly connected with vehicle frame 1 or damping is connected, the hind axle 2 is fixedly connected with left installing rack 7 and right installing rack 8, the left side
Rear change mechanism 5 is arranged at 7 position of left installing rack, and the off hind wheel gear 6 is arranged at 8 position of right installing rack.
The left rear wheel gear 5 includes：Driving shaft 50, driven shaft 51, wheel for inputting 52, the first driving wheel 53, second
Driving wheel 54, driving member 55, the first driven wheel 56 and the second driven wheel 57, the wheel for inputting 52, the first driving wheel 53 and second
Driving wheel 54 is sheathed on driving shaft 50 respectively, the wheel for inputting 52 between the first driving wheel 53 and the second driving wheel 54,
The wheel for inputting 52 includes the first axle sleeve 520 and input wheel body 521, is equipped between first axle sleeve 520 and input wheel body 521
Freewheel clutch (not shown), first axle sleeve 520 are sheathed on driving shaft 50 and can make axial shifting relative to driving shaft 50
It is dynamic and relatively rotate, be equipped with internal spline 522 in first axle sleeve 520, first driving wheel 53 including the second axle sleeve 530 and
First active wheel body 531, second axle sleeve 530 are sheathed on driving shaft 50 and can be relatively rotated relative to driving shaft 50,
Second axle sleeve 530 and 53 body by integral forming of the first driving wheel are fixedly connected, and second axle sleeve 530 is equipped with and first axle
Matched first external splines 532 of internal spline 522 of set 520, second driving wheel 54 include the 3rd axle sleeve 540 and the second master
Driving wheel body 541, the 3rd axle sleeve 540 are sheathed on driving shaft 50 and can be relatively rotated relative to driving shaft 50, and described
Three axle sleeves 540 are integrally formed or are fixedly connected with the second active wheel body 541, and the 3rd axle sleeve 540 is equipped with and the first axle sleeve 520
Matched second external splines 542 of internal spline 522.In the present embodiment, 52 and first driving wheel 53 of wheel for inputting and
Engagement is realized using spline connection between second driving wheel 54, certainly in other implementations, can also use steel ball, steel tank
It is same that the present invention can be achieved Deng other engagement systems.
Connected between first driving wheel, 53 and first driven wheel 56 by the way that the first connector is (not shown), described second
Pass through the connection (not shown) of the second connector, in the present embodiment, described first between 54 and second driven wheel 57 of driving wheel
Driving wheel 53, the first driven wheel 56, the second driving wheel 54 and the second driven wheel 57 are sprocket wheel, and first connector and second connect
Fitting is chain, and the driving member 55 is sheathed on driven shaft 51 and can be rotated relative to driven shaft 51, first driven wheel
56 and second driven wheel 57 be fixedly connected respectively with driving member 55, in the present embodiment, the knot of the off hind wheel gear 6
Structure is identical with the structure of left rear wheel gear 5, certainly in other implementations, the knot of the off hind wheel gear 6
Structure also can be different from the structure of left rear wheel gear 5, or only set left rear wheel gear 5, after 4 wheel hub of off hind wheel and the right side
Bearing is set between wheel shaft or off hind wheel gear 6 is only set, bearing is equipped between 3 wheel hub of left rear wheel and left back wheel shaft,
It can realize the present invention, the first hollow shaft 70, the driving shaft of the left rear wheel gear 5 are equipped with the left installing rack 7
50 one end is contained in the first hollow shaft 70, and the other end extends the first hollow shaft 70, and second is equipped with the right installing rack 8
Hollow shaft 80, one end of the driving shaft of the off hind wheel gear 6 are contained in the second hollow shaft 80, and the other end extends
Two hollow shafts 80.Connected between 3 wheel hub of driving member 55 and left rear wheel of the left rear wheel gear 5 by spline, the right side
It is connected between the driving member (not shown) of rear change mechanism 6 and 4 wheel hub of off hind wheel by spline, in the present embodiment, institute
It is hollow shaft to state driven shaft 51, and the driven shaft 51 is sheathed on hind axle 2 and can be rotated relative to hind axle 2, certainly at it
In his embodiment, driven shaft 51 can not also be separately provided, hind axle 2 is become driven shaft, can also realize this
Invention.
The operation principle of back wheel direct drive variable speed drive is in the present invention：During one gear, wheel for inputting 52 is moved axially, is made defeated
The internal spline 522 entered in wheel 52 is meshed with the first external splines 532 on the first driving wheel 53, and power is inputted by wheel for inputting 52,
So as to driving the first driving wheel 53 to rotate, since the first driving wheel 53 is connected by the first connector with the first driven wheel 56,
Therefore the first driven wheel 56 rotates, since the first driven wheel 56 is fixedly connected with driving member 55, driving member 55 and and hub for vehicle wheel
It is fixedly connected, therefore drives vehicle wheel rotation, the second driving wheel 54 and the second driven wheel 57 are servo-actuated at this time, during two gears, axial movement
Wheel for inputting 52, makes the internal spline 522 in wheel for inputting 52 be meshed with the second external splines 542 on the second driving wheel 54, power by
Wheel for inputting 52 inputs, so as to drive the second driving wheel 54 to rotate, due to the second driving wheel 54 by the second connector and second from
Driving wheel 57 is connected, therefore the second driven wheel 57 rotates, since the second driven wheel 57 is fixedly connected with driving member 55, driving member 55
It is fixedly connected again with hub for vehicle wheel, therefore drives vehicle wheel rotation, the first driving wheel 53 and the first driven wheel 56 is servo-actuated at this time, this hair
Left rear wheel gear 5 and off hind wheel gear 6 in bright are operated alone respectively, therefore in specific implementation process,
Both can input power can also single input power at the same time with left rear wheel 3 and off hind wheel 4.
In conclusion the back wheel direct drive variable speed drive in the present invention by driving shaft by being arranged at the hollow of dynamic mount
In axis, the structure of speed changer is enormously simplify, is easily installed, the back wheel direct drive variable speed drive in the present invention directly drives wheel
Hub rotates, and axletree is fixedly connected with dynamic mount, and disc brake sheet is installed on after wheel hub and is not swung with vehicle frame.
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 (10)
- A kind of 1. back wheel direct drive variable speed drive, it is characterised in that including：Vehicle frame, left back wheel shaft, off hind wheel axis, left rear wheel, Off hind wheel and rear change mechanism, left installing rack and right installing rack, the left back wheel shaft and left installation are provided with the vehicle frame Frame is fixedly connected, and the off hind wheel axis is fixedly connected with right installing rack, and the rear change mechanism is arranged at left installing rack position At place and/or right installing rack position, the rear change mechanism driving left rear wheel wheel hub and/or off hind wheel wheel hub.
- A kind of 2. back wheel direct drive variable speed drive as claimed in claim 1, it is characterised in that：After the left back wheel shaft and the right side Wheel shaft is integrally formed or is fixedly connected.
- A kind of 3. back wheel direct drive variable speed drive as claimed in claim 1, it is characterised in that：The rear change mechanism Quantity is one, and the rear change mechanism includes：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, the second driving wheel, biography Moving part, the first driven wheel and the second driven wheel, the wheel for inputting, the first driving wheel and the second driving wheel are sheathed on driving shaft respectively On, the wheel for inputting is equipped with the between the first driving wheel and the second driving wheel between the wheel for inputting and the first driving wheel One Meshing Pair, is equipped with the second Meshing Pair, first driving wheel and the first driven wheel between the wheel for inputting and the second driving wheel Between by the first connector connect, between second driving wheel and the second driven wheel by the second connector connect, it is described Driving member is sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel respectively with transmission Part is fixedly connected, and the rear change mechanism is arranged between left rear wheel wheel hub and left installing rack or off hind wheel wheel hub and right installation Between frame.
- A kind of 4. back wheel direct drive variable speed drive as claimed in claim 1, it is characterised in that：The rear change mechanism Quantity is two, including left rear wheel gear and off hind wheel gear, the left rear wheel gear are arranged at left rear wheel Between wheel hub and left installing rack, the off hind wheel gear is arranged between off hind wheel wheel hub and right installing rack.
- A kind of 5. back wheel direct drive variable speed drive as claimed in claim 4, it is characterised in that：The left rear wheel gear It is identical with off hind wheel gear structure, include：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, the second driving wheel, biography Moving part, the first driven wheel and the second driven wheel, the wheel for inputting, the first driving wheel and the second driving wheel are sheathed on driving shaft respectively On, the wheel for inputting is equipped with the between the first driving wheel and the second driving wheel between the wheel for inputting and the first driving wheel One Meshing Pair, is equipped with the second Meshing Pair, first driving wheel and the first driven wheel between the wheel for inputting and the second driving wheel Between by the first connector connect, between second driving wheel and the second driven wheel by the second connector connect, it is described Driving member is sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel respectively with transmission Part is fixedly connected, and the driving shaft of the left rear wheel gear is installed in left installing rack, the master of the off hind wheel gear Moving axis is installed in right installing rack, and the driving member of the left rear wheel gear is fixedly connected with left rear wheel wheel hub, behind the right side The driving member of wheel gear is fixedly connected with off hind wheel wheel hub.
- A kind of 6. back wheel direct drive variable speed drive as claimed in claim 5, it is characterised in that：The left installing rack, right peace Shelve and be fixedly connected respectively with vehicle frame or damping is connected, the first hollow shaft, the left rear wheel speed change are equipped with the left installing rack One end of the driving shaft of mechanism is contained in the first hollow shaft, and the other end extends the first hollow shaft, is set in the right installing rack There is the second hollow shaft, one end of the driving shaft of the off hind wheel gear is contained in the second hollow shaft, and the other end extends Second hollow shaft.
- A kind of 7. back wheel direct drive variable speed drive as described in claim 3 or 5, it is characterised in that：The wheel for inputting includes First axle sleeve and input wheel body, are equipped with freewheel clutch, first axle sleeve is arranged between first axle sleeve and input wheel body In on driving shaft and can move axially and relatively rotate relative to driving shaft, internal spline is equipped with first axle sleeve.
- A kind of 8. back wheel direct drive variable speed drive as claimed in claim 7, it is characterised in that：First driving wheel includes Second axle sleeve and the first active wheel body, second axle sleeve are sheathed on driving shaft and can be relatively rotated relative to driving shaft, Second axle sleeve and the first driving wheel body by integral forming are fixedly connected, and second axle sleeve is equipped with the interior flower with the first axle sleeve Matched first external splines of key, second driving wheel include the 3rd axle sleeve and the second active wheel body, the 3rd axle sleeve set It can relatively rotate on driving shaft and relative to driving shaft, the 3rd axle sleeve and the second driving wheel body by integral forming or solid Fixed connection, the 3rd axle sleeve are equipped with matched second external splines of internal spline with the first axle sleeve.
- A kind of 9. back wheel direct drive variable speed drive as described in claim 3 or 5, it is characterised in that：First driving wheel, Second driving wheel, the first driven wheel and the second driven wheel are sprocket wheel or belt wheel, and first connector, the second connector are chain Or transmission belt.
- A kind of 10. back wheel direct drive variable speed drive as described in claim 3 or 5, it is characterised in that：After the driven shaft is Wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394328.6A CN107972804B (en) | 2017-12-21 | 2017-12-21 | Rear wheel direct-drive variable-speed transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711394328.6A CN107972804B (en) | 2017-12-21 | 2017-12-21 | Rear wheel direct-drive variable-speed transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107972804A true CN107972804A (en) | 2018-05-01 |
| CN107972804B CN107972804B (en) | 2023-07-18 |
Family
ID=62007204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711394328.6A Active CN107972804B (en) | 2017-12-21 | 2017-12-21 | Rear wheel direct-drive variable-speed transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107972804B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2815862Y (en) * | 2005-06-21 | 2006-09-13 | 廖远成 | Two-wheel drive mechanism of bicycle |
| CN105351456A (en) * | 2015-12-12 | 2016-02-24 | 威马农业机械有限公司 | Mini-tiller high-low-speed gearshift |
| CN106005214A (en) * | 2016-07-07 | 2016-10-12 | 张家港川梭车业有限公司 | Dual front wheel driving device for bicycle |
| CN106985960A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | A kind of two front wheels directly drive ratchet moving gear shift speed change gear |
| CN207631425U (en) * | 2017-12-21 | 2018-07-20 | 张家港川梭车业有限公司 | A kind of back wheel direct drive variable speed drive |
-
2017
- 2017-12-21 CN CN201711394328.6A patent/CN107972804B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2815862Y (en) * | 2005-06-21 | 2006-09-13 | 廖远成 | Two-wheel drive mechanism of bicycle |
| CN105351456A (en) * | 2015-12-12 | 2016-02-24 | 威马农业机械有限公司 | Mini-tiller high-low-speed gearshift |
| CN106005214A (en) * | 2016-07-07 | 2016-10-12 | 张家港川梭车业有限公司 | Dual front wheel driving device for bicycle |
| CN106985960A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | A kind of two front wheels directly drive ratchet moving gear shift speed change gear |
| CN207631425U (en) * | 2017-12-21 | 2018-07-20 | 张家港川梭车业有限公司 | A kind of back wheel direct drive variable speed drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107972804B (en) | 2023-07-18 |
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