CN207631425U - 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
- CN207631425U CN207631425U CN201721805778.5U CN201721805778U CN207631425U CN 207631425 U CN207631425 U CN 207631425U CN 201721805778 U CN201721805778 U CN 201721805778U CN 207631425 U CN207631425 U CN 207631425U
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Abstract
The utility model discloses a kind of back wheel direct drive variable speed drives, 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 set 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 are easily installed to enormously simplify the structure of speed changer.
Description
【Technical field】
The utility model is related to bicycle art more particularly to a kind of back wheel direct drive variable speed drives.
【Background technology】
With the fast development of tourist industry, double rear wheel bicycle application is also more and more extensive, double rear wheel in 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 cross
Beam is separately installed with mounting bracket on two longerons, and the hind axle is equipped with self-aligning bearing across 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 defect of dynamic device is：1, when the double rear wheel variable speed drive work of this kind of structure, hind axle is constantly in rotary state,
One of trailing wheel is driven, another trailing wheel is servo-actuated or drives two trailing wheels to rotate simultaneously simultaneously, cannot achieve two
Trailing wheel separate transmission；2, 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 easy to swing.
Therefore, it is necessary to provide a kind of back wheel direct drive variable speed drive solving above-mentioned technical problem.
【Utility model content】
To solve the above problems, the purpose of this utility model is to provide a kind of trailing wheel simple in structure, easy for installation is straight
Drive variable speed drive.
To achieve the above object, the technical solution that the utility model is taken is：A kind of back wheel direct drive variable speed drive, packet
It includes：Vehicle frame, left back wheel shaft, off hind wheel axis, left rear wheel, off hind wheel and rear change mechanism are equipped with left installation on the vehicle frame
Frame 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, institute
It states rear change mechanism to be set at left installing rack position and/or at right installing rack position, the rear change mechanism driving is left
Rear-wheel hub and/or off hind wheel wheel hub.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The left rear wheel
Axis is integrally formed or is fixedly connected with off hind wheel axis.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The trailing wheel becomes
The quantity of fast mechanism is one, and the rear change mechanism includes：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, second
Driving 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 cover respectively
On driving shaft, the wheel for inputting is between the first driving wheel and the second driving wheel, the wheel for inputting and the first driving wheel
Between be equipped with the first Meshing Pair, between the wheel for inputting and the second driving wheel be equipped with the second Meshing Pair, first driving wheel with
It is connected by the first connector between first driven wheel, passes through the second connector between second driving wheel and the second driven wheel
Connection, the driving member are sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel
It is fixedly connected respectively with driving member, the rear change mechanism is set between left rear wheel wheel hub and left installing rack or off hind wheel wheel
Between hub and right installing rack.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The trailing wheel becomes
The quantity of fast mechanism is two, including left rear wheel gear and off hind wheel gear, the left rear wheel gear setting
Between left rear wheel wheel hub and left installing rack, the off hind wheel gear is set between off hind wheel wheel hub and right installing rack.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The left rear wheel
Gear is identical as off hind wheel gear structure, includes：Driving shaft, driven shaft, wheel for inputting, the first driving wheel, second
Driving 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 cover respectively
On driving shaft, the wheel for inputting is between the first driving wheel and the second driving wheel, the wheel for inputting and the first driving wheel
Between be equipped with the first Meshing Pair, between the wheel for inputting and the second driving wheel be equipped with the second Meshing Pair, first driving wheel with
It is connected by the first connector between first driven wheel, passes through the second connector between second driving wheel and the second driven wheel
Connection, the driving member are sheathed on driven shaft and can be rotated relative to driven shaft, first driven wheel and the second driven wheel
It is fixedly connected respectively with driving member, the driving shaft of the left rear wheel gear is installed in left installing rack, and the off hind wheel becomes
The driving shaft of fast mechanism is installed in right installing rack, and the driving member of the left rear wheel gear is fixed with left rear wheel wheel hub to be connected
It connects, 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 utility model is further arranged to：The left installation
Frame, right installing rack are fixedly connected respectively with vehicle frame or damping is connect, and the first hollow shaft is equipped in the left installing rack, described left back
The one end for taking turns the driving shaft of gear is contained in the first hollow shaft, and the other end extends the first hollow shaft, the right installation
The second hollow shaft is equipped in frame, one end of the driving shaft of the off hind wheel gear is contained in the second hollow shaft, the other end
Extend the second hollow shaft.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The wheel for inputting
Including the first axle sleeve and input wheel body, freewheel clutch, first axle sleeve are equipped between first axle sleeve and input wheel body
It is sheathed on driving shaft and can move axially and relatively rotate relative to driving shaft, internal spline is equipped in first axle sleeve.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：First master
Driving wheel includes the second axle sleeve and the first active wheel body, and second axle sleeve is sheathed on driving shaft and can make phase relative to driving shaft
It to rotation, second axle sleeve and the first driving wheel body by integral forming or is fixedly connected, second axle sleeve is equipped with and first axle
Matched first external splines of internal spline of set, second driving wheel include third axle sleeve and the second active wheel body, and described
Three axle sleeves are sheathed on driving shaft and can be relatively rotated relative to driving shaft, the third axle sleeve and the second active wheel body one
It is molded or is fixedly connected, the third 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 utility model is further arranged to：First master
Driving wheel, the second driving wheel, the first driven wheel and the second driven wheel are sprocket wheel or belt wheel, first connector, the second connector
For chain or transmission belt.
Preferably, a kind of back wheel direct drive variable speed drive in the utility model is further arranged to：The driven shaft
For hind axle.
Compared with prior art, the utility model has the advantages that：Back wheel direct drive speed change in the utility model
Transmission device enormously simplifies the structure of speed changer, is easily installed, originally by the way that driving shaft to be set in the hollow shaft of dynamic mount
Back wheel direct drive variable speed drive in utility model directly drives hub rotation, and axletree is fixedly connected with dynamic mount, disc brake
Piece is installed on after wheel hub and is not swung with vehicle frame, and two trailing wheels of back wheel direct drive variable speed drive can be real in the utility model
Existing independent power transmission, can input power or single input power simultaneously.
【Description of the drawings】
Fig. 1 is the structural schematic diagram of back wheel direct drive variable speed drive in the utility model.
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 utility model.
In Fig. 1 to Fig. 3：1, 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,
530, the second axle sleeve, the 531, first active wheel body, the 532, first external splines, the 54, second driving wheel, 540, third 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.
【Specific implementation mode】
It is further to a kind of back wheel direct drive variable speed drive work described in the utility model below by specific embodiment
Detailed 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
The integrated molding of off hind wheel axis 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 connect, 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 set at 7 position of left installing rack, and the off hind wheel gear 6 is set 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 respectively on driving shaft 50, 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 include 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
522 matched first external splines 532 of internal spline of set 520, second driving wheel 54 are led including third axle sleeve 540 and second
Driving wheel body 541, the third 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 third axle sleeve 540 is equipped with and the first axle sleeve 520
522 matched second external splines 542 of internal spline.In the present embodiment, the wheel for inputting 52 and the first driving wheel 53 and
Engagement is realized using spline connection between second driving wheel 54, certainly in other implementations, steel ball, steel tank can also be used
Deng other engagement systems, the utility model equally can be achieved.
It is 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 driving wheel 54 and the second driven wheel 57
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 as 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 setting left rear wheel gear 5, after 4 wheel hub of off hind wheel and the right side
Bearing or only setting off hind wheel gear 6 are set between wheel shaft, bearing is equipped between 3 wheel hub of left rear wheel and left back wheel shaft,
It can realize the utility model, the first hollow shaft 70, the master of the left rear wheel gear 5 are equipped in the left installing rack 7
One end of moving axis 50 is contained in the first hollow shaft 70, and the other end extends the first hollow shaft 70, is equipped in the right installing rack 8
One end of second hollow shaft 80, the driving shaft of the off hind wheel gear 6 is contained in the second hollow shaft 80, and the other end extends
Go out the second hollow shaft 80.It is connected by spline between 3 wheel hub of driving member 55 and left rear wheel of the left rear wheel gear 5, institute
It states and is connect by spline between the driving member (not shown) of off hind wheel gear 6 and 4 wheel hub of off hind wheel, in present embodiment
In, the driven shaft 51 is hollow shaft, and the driven shaft 51 is sheathed on hind axle 2 and can be rotated relative to hind axle 2, certainly
In other implementations, driven shaft 51 can not also be separately provided, hind axle 2 is directly made to become driven shaft, it can also be real
Existing the utility model.
The operation principle of back wheel direct drive variable speed drive is in the utility model：When one gear, wheel for inputting 52 is moved axially,
The internal spline 522 in wheel for inputting 52 is set to be meshed with the first external splines 532 on the first driving wheel 53, power is defeated by wheel for inputting 52
Enter, to drive the rotation of the first driving wheel 53, since the first driving wheel 53 is connected by the first connector with the first driven wheel 56
It connects, 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 vehicle wheel
Hub is fixedly connected, therefore drives vehicle wheel rotation, and the second driving wheel 54 and the second driven wheel 57 are servo-actuated at this time, axial to move when two gears
Dynamic 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
It is inputted by wheel for inputting 52, to drive the rotation of the second driving wheel 54, since the second driving wheel 54 passes through the second connector and second
Driven 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 are fixedly connected with hub for vehicle wheel again, therefore drive vehicle wheel rotation, and the first driving wheel 53 and the first driven wheel 56 are servo-actuated at this time, this
Left rear wheel gear 5 and off hind wheel gear 6 in utility model are operated alone respectively, therefore are being embodied
Cheng Zhong, both can input power can also single input power simultaneously with left rear wheel 3 and off hind wheel 4.
In conclusion the back wheel direct drive variable speed drive in the utility model by driving shaft by being set to dynamic mount
In hollow shaft, the structure of speed changer is enormously simplified, is easily installed, the back wheel direct drive variable speed drive in the utility model is straight
Drive hub rotation is connect, 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 utility model creation are only illustrated in the above embodiments, and the reality that 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, not departing from this
Under the premise of utility model concept, various modifications and improvements can be made, these belong to the protection of the utility model
Range.
Claims (10)
1. a kind of back wheel direct drive variable speed drive, which is characterized in that including：Vehicle frame, left back wheel shaft, off hind wheel axis, left rear wheel,
Off hind wheel and rear change mechanism are equipped with left installing rack and right installing rack, the left back wheel shaft and left installation on 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 set to 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.
2. a kind of back wheel direct drive variable speed drive as described 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.
3. a kind of back wheel direct drive variable speed drive as described in claim 1, it is characterised in that：The rear change mechanism
Quantity is one, and the rear change mechanism includes：Driving shaft, wheel for inputting, the first driving wheel, the second driving wheel, passes driven shaft
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 set between left rear wheel wheel hub and left installing rack or off hind wheel wheel hub and right installation
Between frame.
4. a kind of back wheel direct drive variable speed drive as described 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 set to left rear wheel
Between wheel hub and left installing rack, the off hind wheel gear is set between off hind wheel wheel hub and right installing rack.
5. a kind of 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 as off hind wheel gear structure, include：Driving shaft, wheel for inputting, the first driving wheel, the second driving wheel, passes driven shaft
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.
6. a kind of back wheel direct drive variable speed drive as claimed in claim 5, it is characterised in that：The left installing rack, right peace
It shelves and is fixedly connected respectively with vehicle frame or damping is connect, the first hollow shaft, the left rear wheel speed change are equipped in 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 are the second hollow shaft, one end of the driving shaft of the off hind wheel gear to be contained in the second hollow shaft, the other end extends
Second hollow shaft.
7. a kind of 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 in first axle sleeve.
8. a kind of 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 third axle sleeve and the second active wheel body, the third axle sleeve set
It can relatively rotate on driving shaft and relative to driving shaft, the third axle sleeve and the second driving wheel body by integral forming or solid
Fixed connection, the third axle sleeve are equipped with matched second external splines of internal spline with the first axle sleeve.
9. a kind of 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.
10. a kind of 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 |
|---|---|---|---|
| CN201721805778.5U CN207631425U (en) | 2017-12-21 | 2017-12-21 | A kind of back wheel direct drive variable speed drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721805778.5U CN207631425U (en) | 2017-12-21 | 2017-12-21 | A kind of back wheel direct drive variable speed drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207631425U true CN207631425U (en) | 2018-07-20 |
Family
ID=62853432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721805778.5U Withdrawn - After Issue CN207631425U (en) | 2017-12-21 | 2017-12-21 | A kind of back wheel direct drive variable speed drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207631425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972804A (en) * | 2017-12-21 | 2018-05-01 | 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 CN201721805778.5U patent/CN207631425U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107972804A (en) * | 2017-12-21 | 2018-05-01 | 张家港川梭车业有限公司 | A kind of back wheel direct drive variable speed drive |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180720 Effective date of abandoning: 20230718 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180720 Effective date of abandoning: 20230718 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |