CN204279861U - Lightweight transmission system and bicycle thereof - Google Patents
Lightweight transmission system and bicycle thereof Download PDFInfo
- Publication number
- CN204279861U CN204279861U CN201420778141.1U CN201420778141U CN204279861U CN 204279861 U CN204279861 U CN 204279861U CN 201420778141 U CN201420778141 U CN 201420778141U CN 204279861 U CN204279861 U CN 204279861U
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- China
- Prior art keywords
- shift
- gear shift
- gear
- sprocket
- transmission system
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Abstract
The utility model discloses a kind of lightweight transmission system and bicycle thereof, transmission system comprises: diff shell; Shift shaft, the axis parallel of its axle center and diff shell; Gear shift chain wheel set, comprise gear shift drive sprocket and gear shift by movable sprocket, gear shift drive sprocket is sheathed on shift shaft, and gear shift to be connected on diff shell and to be connected with gear shift drive sprocket by movable sprocket is sheathed; Fork shift bar, its periphery is provided with ring-type projection.The junction that in the utility model, the ring-type projection of fork shift bar moves to gear shift drive sprocket and shift shaft makes the two lock, Input Forces is provided to shift shaft, gear shift drive sprocket rotates along with shift shaft, the transmitting ratio of multiple gear shift chain wheel set realizes the different speed of a motor vehicle, portable construction, less on the moving velocity impact of bicycle, and it is little to take up room, realize miniaturization, be convenient to ride, on the other hand, under the static and running state of bicycle, all removable fork shift bar realizes large speed ratio gear shift, be convenient to quick startup, more time saving and energy saving.
Description
Technical field
The utility model belongs to vehicular drive technical field, is specifically related to a kind of lightweight transmission system and bicycle thereof.
Background technology
Bicycle, automobile or other vehicles are the walking-replacing tools in people's daily life, usually have at least one transmission system, for the gearshift control that vehicle travels.
In known prior art, the kind of transmission system structure is more, and the transmitting ratio that automobile generally adopts change gear group different exports friction speed, realize gear shift, the structure bulky of change gear group, if be applied in the speed that bicycle can affect bicycle, and it is large to take up room, and is not easy to ride.
Meanwhile, existing bicycle generally adopts cone pulley gear shift, can only gear shift in rotation, and can only realize gear shift, complicated operation in one grade of one grade of ground.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of lightweight transmission system and bicycle thereof.
In order to achieve the above object, the technical solution of the utility model is as follows:
Lightweight transmission system, comprising:
Diff shell, it is hollow cylindrical;
Shift shaft, the axis parallel of its axle center and diff shell;
At least one gear shift chain wheel set, comprise gear shift drive sprocket and gear shift by movable sprocket, gear shift drive sprocket is sheathed on shift shaft, and gear shift is sheathed and be connected on diff shell by movable sprocket, and gear shift is also connected with gear shift drive sprocket by movable sprocket;
Fork shift bar, its periphery is provided with ring-type projection, and fork shift bar is arranged in the axocoel of shift shaft and along the length direction of shift shaft and moves around.
In the utility model, fork shift bar moves along the length direction of shift shaft, the junction moving to gear shift drive sprocket and shift shaft when ring-type projection makes the two lock, an Input Forces is provided to shift shaft, gear shift drive sprocket rotates along with the rotation of shift shaft, the transmitting ratio of multiple gear shift chain wheel set realizes the different speed of a motor vehicle, compared to prior art, adopt multiple gear shift chain wheel set ratio coverage large, portable construction, less on the moving velocity impact of bicycle, and it is little to take up room, realize miniaturization, be convenient to ride, on the other hand, under the static and running state of bicycle, all removable fork shift bar realizes large speed ratio gear shift, be convenient to quick startup, more time saving and energy saving.
On the basis of technique scheme, also can do following improvement:
As preferred scheme, also comprise:
Input sprocket, it is sheathed on diff shell;
Final gear, it is sheathed on diff shell, and diff shell is also provided with attaching parts, and attaching parts, input sprocket are arranged at the both sides of final gear, and final gear is also connected with input sprocket;
Be transmitted gear, it is sheathed and be connected on shift shaft, is transmitted gear and is also connected with final gear external toothing.
Adopt above-mentioned preferred scheme, parking and the reverse motion of bicycle can be realized.
During gear shift, the ring-type projection of fork shift bar moves to the gear of needs, and input sprocket drives final gear to rotate, final gear drives and is transmitted pinion rotation, be transmitted gear drive shift shaft to rotate, realize speed ratio conversion through gear shift chain wheel set, finally exported by diff shell;
During parking, the ring-type projection of fork shift bar moves to the junction of gear shift drive sprocket and shift shaft, and final gear is connected with diff shell by attaching parts, because final gear is contrary by turning to of movable sprocket with gear shift, speed-changing mechanism cannot be rotated by locked, realizes stopping;
During reverse gear, the ring-type projection of fork shift bar moves to gear shift drive sprocket and the non-junction of shift shaft, and final gear is connected Direct driver diff shell by attaching parts with diff shell and reverses, and realizes reverse gear.
As preferred scheme, above-mentioned input sprocket, gear shift drive sprocket and gear shift are comprised one or more sprocket wheel by movable sprocket.
Adopt above-mentioned preferred scheme, adopt multiple sprocket wheel, on the basis of miniaturization, structure is more firm.
As preferred scheme, multiple gear shift attaching parts is circumferentially also provided with between above-mentioned gear shift drive sprocket and shift shaft, shift shaft periphery is provided with multiple mounting groove, the endoporus of gear shift drive sprocket is circumferentially evenly provided with multiple deep-slotted chip breaker, gear shift attaching parts is arranged in mounting groove actively, and concrete quantity can be arranged according to demand.
Adopt above-mentioned preferred scheme, the ring-type projection of fork shift bar moves to gear shift drive sprocket and shift shaft junction, ring-type projection gear shift attaching parts is ejected make its outstanding shift shaft periphery and with the deep-slotted chip breaker clamping of gear shift drive sprocket, thus shift shaft and gear shift drive sprocket are pinned moment of torsion is passed to gear shift by movable sprocket, realizes gear shift.
As preferred scheme, above-mentioned gear shift attaching parts is sphere structure or needle roller structure, and the diameter dimension of gear shift attaching parts is greater than the height dimension of mounting groove.
As preferred scheme, the end of above-mentioned gear shift attaching parts is arc or centrum shape.
As preferred scheme, the quantity of above-mentioned deep-slotted chip breaker is the integral multiple of gear shift attaching parts quantity.
As preferred scheme, above-mentioned gear shift attaching parts is around being axially uniformly distributed.
Adopt above-mentioned preferred scheme, the quantity of deep-slotted chip breaker, gear shift attaching parts and the distribution mode of gear shift attaching parts can be selected according to demand, and kinds of schemes can realize identical technique effect.
As preferred scheme, above-mentioned ring-type projection is provided with inclined end face at the two ends in fork shift pole length direction, and the external diameter of fork shift bar is less than the internal diameter of shift shaft, and the external diameter of ring-type projection is no more than the internal diameter of shift shaft.
Adopt above-mentioned preferred scheme, when fork shift bar moves, inclined end face carries out transition, is convenient to gear shift attaching parts to eject.
The utility model also provides a kind of bicycle, applies above-mentioned lightweight transmission system.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is the structural representation of the another kind of embodiment of the utility model.
Fig. 3 be in Fig. 2 B-B to schematic cross-section.
Wherein, 10. diff shell, 11. gear shift are by movable sprocket, and 12. final geares, 13. input sprockets, 20. shift shafts, 21. gear shift drive sprockets, 22. are transmitted gear, 30. fork shift bars, 31. ring-type projections, 40. gear shift attaching partss.
Detailed description of the invention
Preferred implementation of the present utility model is described in detail below in conjunction with accompanying drawing.
In order to reach the purpose of this utility model, as shown in Figure 1, in wherein a kind of embodiment of the present utility model, provide a kind of lightweight transmission system, comprising:
Diff shell 10, it is hollow cylindrical;
Shift shaft 20, the axis parallel of its axle center and diff shell 10;
Four gear shift chain wheel set, each gear shift chain wheel set comprises gear shift drive sprocket 21 and gear shift by movable sprocket 11, gear shift drive sprocket 21 is sheathed on shift shaft 20, and gear shift is sheathed and be connected on diff shell 10 by movable sprocket 11, and gear shift is also connected with gear shift drive sprocket 21 by movable sprocket 11;
Fork shift bar 30, its periphery is provided with ring-type projection, and fork shift bar 30 is arranged in the axocoel of shift shaft 20 and length direction along shift shaft 20 moves around.
In present embodiment, fork shift bar 30 moves along the length direction of shift shaft 20, with the junction of shift shaft 20, the two is locked when ring-type projection moves to gear shift drive sprocket 21, an Input Forces is provided to shift shaft 20, gear shift drive sprocket 21 rotates along with the rotation of shift shaft 20, the transmitting ratio of multiple gear shift chain wheel set realizes the different speed of a motor vehicle, compared to prior art, adopt multiple gear shift chain wheel set ratio coverage large, portable construction, less on the moving velocity impact of bicycle, and it is little to take up room, realize miniaturization, be convenient to ride, on the other hand, under the static and running state of bicycle, all removable fork shift bar realizes large speed ratio gear shift, be convenient to quick startup, more time saving and energy saving.
As shown in Figure 2 to Figure 3, in order to optimize implementation result of the present utility model further, in another kind of embodiment of the present utility model, on the basis of foregoing teachings, also comprise:
Input sprocket 13, it is sheathed on diff shell 10;
Final gear 12, it is sheathed on diff shell 10, diff shell 10 is also provided with attaching parts (not shown), and attaching parts, input sprocket 13 are arranged at the both sides of final gear 12, and final gear 12 is also connected with input sprocket 13;
Be transmitted gear 22, it is sheathed and be connected on shift shaft 20, is transmitted gear 22 and is also connected with final gear 12 external toothing.
Adopt above-mentioned preferred scheme, parking and the reverse motion of bicycle can be realized.
During gear shift, the ring-type projection of fork shift bar 30 moves to the gear of needs, input sprocket 13 drives final gear 12 to rotate, final gear 12 driving is transmitted gear 22 and rotates, being transmitted gear 22 drives shift shaft 20 to rotate, realize speed ratio conversion through gear shift chain wheel set, finally exported by diff shell 10;
During parking, the ring-type projection of fork shift bar 30 moves to the junction of gear shift drive sprocket 21 and shift shaft 20, final gear 12 is connected with diff shell 10 by attaching parts, because final gear 12 is contrary by turning to of movable sprocket 11 with gear shift, speed-changing mechanism cannot be rotated by locked, realizes stopping;
During reverse gear, the ring-type projection of fork shift bar 30 moves to gear shift drive sprocket 21 and the non-junction of shift shaft 20, and final gear 12 is connected Direct driver diff shell 10 by attaching parts with diff shell 10 and reverses, and realizes reverse gear.
The input sprocket 13 that present embodiment provides, gear shift drive sprocket 21 and gear shift are comprised two sprocket wheels by movable sprocket 11, and adopt two sprocket wheels, on the basis of miniaturization, structure is more firm; The attaching parts that present embodiment provides can adopt spline.
As shown in Figure 3, three gear shift attaching partss 40 are circumferentially also provided with between the gear shift drive sprocket 21 that present embodiment provides and shift shaft 20, shift shaft 20 periphery is provided with three mounting grooves, the endoporus of gear shift drive sprocket 21 is circumferentially evenly provided with nine deep-slotted chip breakers, and gear shift attaching parts 40 is arranged in mounting groove actively.
In present embodiment, the ring-type projection of fork shift bar 30 moves to gear shift drive sprocket 21 and shift shaft 20 junction, ring-type projection gear shift attaching parts 40 is ejected make its outstanding shift shaft 20 periphery and with the deep-slotted chip breaker clamping of gear shift drive sprocket 21, thus shift shaft 20 and gear shift drive sprocket 21 are pinned moment of torsion is passed to gear shift by movable sprocket 11, realizes gear shift.
In addition, the ring-type projection of fork shift bar 30 moves to gear shift drive sprocket 21 and the non-junction of shift shaft 20, owing to not having the supporting of fork shift bar 30, gear shift attaching parts 40 can be got back in mounting groove by the cambered surface shelves of deep-slotted chip breaker, and gear shift drive sprocket 21 is independently rotated with shift shaft 20.
Wherein, above-mentioned gear shift attaching parts 40 adopts needle roller structure and its diameter dimension is greater than the height dimension of mounting groove, and the quantity of above-mentioned deep-slotted chip breaker is the integral multiple of gear shift attaching parts quantity, and gear shift attaching parts 40 is around being axially uniformly distributed.The quantity of deep-slotted chip breaker, gear shift attaching parts 40 and the distribution mode of gear shift attaching parts 40 can be selected according to demand, and kinds of schemes can realize identical technique effect.
According to actual conditions, above-mentioned gear shift attaching parts 40 also can adopt sphere structure and its diameter dimension is greater than the height dimension of mounting groove, and the end of above-mentioned gearshift attaching parts 40 also can be set to arc or centrum shape.
In order to optimize implementation result of the present utility model further, in another kind of embodiment of the present utility model, on the basis of foregoing teachings, above-mentioned ring-type projection 31 is provided with inclined end face at the two ends in fork shift pole length direction, the external diameter of fork shift bar 30 is less than the internal diameter of shift shaft 20, and the internal diameter that the external diameter of ring-type projection 31 is no more than shift shaft 20 makes fork shift bar 30 move axially along shift shaft 20 in shift shaft 20.
Adopt above-mentioned preferred scheme, when fork shift bar 30 moves, inclined end face carries out transition, is convenient to gear shift attaching parts 40 to eject.
Present embodiment also provides a kind of bicycle, applies above-mentioned lightweight transmission system.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. lightweight transmission system, for bicycle shift, is characterized in that, comprising:
Diff shell, it is hollow cylindrical;
Shift shaft, the axis parallel of its axle center and described diff shell;
At least one gear shift chain wheel set, comprise gear shift drive sprocket and gear shift by movable sprocket, described gear shift drive sprocket is sheathed on described shift shaft, and described gear shift is sheathed and be connected on described diff shell by movable sprocket, and described gear shift is also connected with described gear shift drive sprocket by movable sprocket;
Fork shift bar, its periphery is provided with ring-type projection, and described fork shift bar is arranged in the axocoel of described shift shaft and length direction along described shift shaft moves around.
2. lightweight transmission system according to claim 1, is characterized in that, also comprise:
Input sprocket, it is sheathed on described diff shell;
Final gear, it is sheathed on described diff shell, and described diff shell is also provided with attaching parts, and described attaching parts, described input sprocket are arranged at the both sides of described final gear, and described final gear is also connected with described input sprocket;
Be transmitted gear, it is sheathed and be connected on described shift shaft, described in be transmitted gear and be also connected with described final gear external toothing.
3. lightweight transmission system according to claim 2, is characterized in that, described input sprocket, gear shift drive sprocket and gear shift are comprised one or more sprocket wheel respectively by movable sprocket.
4. according to the arbitrary described lightweight transmission system of claim 1-3, it is characterized in that, at least one gear shift attaching parts is circumferentially also provided with between described gear shift drive sprocket and described shift shaft, described shift shaft periphery is provided with at least one mounting groove, the endoporus of described gear shift drive sprocket is circumferentially evenly provided with multiple deep-slotted chip breaker, and described gear shift attaching parts is arranged in described mounting groove actively.
5. lightweight transmission system according to claim 4, is characterized in that, described gear shift attaching parts is sphere structure or needle roller structure, and the diameter dimension of described gear shift attaching parts is greater than the height dimension of mounting groove.
6. lightweight transmission system according to claim 4, is characterized in that, the end of described gear shift attaching parts is arc or centrum shape.
7. lightweight transmission system according to claim 4, is characterized in that, the quantity of described deep-slotted chip breaker is the integral multiple of described gear shift attaching parts quantity.
8. lightweight transmission system according to claim 4, is characterized in that, described gear shift attaching parts is around being axially uniformly distributed.
9. lightweight transmission system according to claim 1, it is characterized in that, described ring-type projection is provided with inclined end face at the two ends in fork shift pole length direction, and the external diameter of described fork shift bar is less than the internal diameter of described shift shaft, and the external diameter of described ring-type projection is no more than the internal diameter of described shift shaft.
10. a bicycle, is characterized in that, applies the lightweight transmission system described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778141.1U CN204279861U (en) | 2014-12-10 | 2014-12-10 | Lightweight transmission system and bicycle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420778141.1U CN204279861U (en) | 2014-12-10 | 2014-12-10 | Lightweight transmission system and bicycle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204279861U true CN204279861U (en) | 2015-04-22 |
Family
ID=52863048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420778141.1U Withdrawn - After Issue CN204279861U (en) | 2014-12-10 | 2014-12-10 | Lightweight transmission system and bicycle thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204279861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494775A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
-
2014
- 2014-12-10 CN CN201420778141.1U patent/CN204279861U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494775A (en) * | 2014-12-10 | 2015-04-08 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
| CN104494775B (en) * | 2014-12-10 | 2017-05-24 | 张家港市九鼎机械有限公司 | Light-weight speed changing device and bicycle adopting light-weight speed changing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20170524 |
|
| AV01 | Patent right actively abandoned |