CN205381358U - Speed -changing bicycle's automatic transmission and bicycle thereof - Google Patents
Speed -changing bicycle's automatic transmission and bicycle thereof Download PDFInfo
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- CN205381358U CN205381358U CN201620081289.9U CN201620081289U CN205381358U CN 205381358 U CN205381358 U CN 205381358U CN 201620081289 U CN201620081289 U CN 201620081289U CN 205381358 U CN205381358 U CN 205381358U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 51
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 210000000078 claw Anatomy 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000009194 climbing Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Abstract
The utility model relates to a speed -changing bicycle's automatic transmission and bicycle thereof, be used for dialling the automatic gearbox that the chain ware is connected with speed -changing bicycle including one, and with automatic gearbox carries out signal transmission's torque sensor and speedtransmitter. Compared with the prior art, the utility model beneficial effect be: weight weighs very much and the big shortcoming of damping on having overcome interior variable speed back flower -drum performance, can use on the climbing bicycle, and the structure that internally changes speed is mutually more simplified.
Description
Technical field
This utility model relates to bicycle art, particularly relates to automatic transimission and the bicycle thereof of a kind of multi-speed bicycle.
Background technology
At present band self-shifting bicycle on the market, its automatic transmission can only coordinate with the rear drum of internal speed-changing, and reason is that interior change rear drum can under any circumstance (rotation or static) can speed change.Its operation principle is that bicycle is under static strong state, automatic transmission has the startup gear of an acquiescence, after starting to ride, automatic transmission can reach self-shifting purpose with according to current speed fluid drive, when ride emergency brake braking time, ride from a high speed suddenly becoming static, now because interior change rear drum can speed change in the stationary case, automatic transmission can automatically reset, and returns to default conditions.
Because the shortcoming in internal speed-changing rear drum performance: weight is too heavy and damping is big, it is impossible to be applied on mountain bike, so currently also there is no energy self-shifting mountain bike.The speed change that main cause is on mountain bike is completed speed change by gear shift flywheel, derailleur, chain.In a stationary situation, flywheel does not rotate, and now speed-changing chain cannot jump on corresponding gear, chain can and derailleur shape have a certain degree, when this angle big to a certain extent time will draw ring derailleur.Because above reason mountain bike can not speed change in the stationary case, again because can not speed change in a stationary situation, when bicycle is when high speed, the speed change combination of bicycle is generally the chain maximum plate gear at chain wheel in the smallest pieces of flywheel, if now brake hard, chain also can be parked in this combination, when being again started up, the speed ratio of chain wheel and flywheel is too big, it is impossible to normally start.So current automatic transmission can not be applied on mountain bike.
Internal speed-changing has close structure, good looking appearance and noiseless feature.It is lightly firm that it changes speed ratio.Speed change is differential general all within 5 grades, domestic production with 3 grades of speed changes for many.The frictional dissipation of internal speed-changing gear is big, and on producing, the requirement of precision is very strict, operation and parts are all more complicated, and cost is also somewhat higher.It is less strict for output function (pedaling speed, pedal power) is required, does not need at will to change differential short distance, low velocity, time of riding short car type appropriate.In China, it is assembled into greatly on the light roadster of medium and high classes.
Utility model content
The technical problems to be solved in the utility model is in that, for the deficiencies in the prior art, it is provided that the automatic transimission of a kind of multi-speed bicycle and bicycle thereof.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that the automatic transimission of a kind of multi-speed bicycle, including an automatic transmission for being connected with chain-turning device of variable speed bicycle, and carry out torque sensor and the velocity sensor of signal transmission with described automatic transmission.
Further, described automatic transmission includes gearbox case, shift cable, movable sleeving, screw rod, motor, fixing seat and controls module；One end of shift cable is for being connected with the derailleur of multi-speed bicycle, and the other end is fixed on movable sleeving through the left end cap of gearbox case；The interior tooth of movable sleeving is embedded on screw rod, and screw rod two ends are separately fixed on left end cap and fixing seat by bearing；Controlling module and motor electrical connection, motor is locked on fixing seat and its rotating shaft is connected with screw rod, and left and right end cap and fixing seat are locked in gearbox case respectively.
Further, the panel of described control module is integrated with MCU control unit, controls module and be fixed on right end cap.
Further, the MCU control unit of described automatic transmission and torque sensor and velocity sensor adopt wireless signal or wire signal transmission each other.
A kind of automatic speed-changing bicycle, automatic transimission including any of the above-described described multi-speed bicycle, described automatic transmission is installed on vehicle frame, and described torque sensor and velocity sensor are installed on axis or back claw, and automatic transmission is connected with the derailleur of multi-speed bicycle.
This utility model compared with prior art provides the benefit that:
1) overcome the shortcoming that automatic transmission can be used only in internal speed-changing rear drum, it is possible to be applied on mountain bike, open up the market prospect of automatic transmission；
2) this utility model adopts external automatic transmission, and in ride, fluid drive is that the speed that the speed according to bicycle changes is automatically performed, it is not necessary to manual operating, fundamentally instead of hands operation speed change；
3) motor of automatic transmission adopts direct current generator, by controlling module, controls to be integrated with MCU control unit on module, it is possible to be accurately controlled the step number of electric machine rotation and the time of energising, such that it is able to accomplish accurate speed changing effect；
4) the control module of automatic transmission adopts transmission of wireless signals each other with torque sensor and velocity sensor, saves space, reduces installation workload, and avoids the ground fault caused because of line broken circuit, reduces fault rate and maintenance cost.
5) this utility model reads the legpower of bicyclist and speed as self-shifting basis in real time by sensor, can ensure that no matter bicyclist is at upward slope or the legpower on level road foot is all constant, power on foot is just as, different only speed, adds the comfort level ridden.
6) speed change of the present utility model combination sets through formula, meets the speed change specification of mountain bike, it is possible to avoids part bicyclist to be ignorant of speed change specification illegal speed change by force and damage speed change gear, adds the life-span of mountain bike
Below in conjunction with the drawings and specific embodiments, this utility model is further described.
Accompanying drawing explanation
Fig. 1 is automatic speed-changing bicycle overall structure schematic diagram of the present utility model；
Fig. 2 is the structural representation that automatic transmission of the present utility model is installed in the Chain stay of automatic speed-changing bicycle；
Fig. 3 is the structural representation of automatic transmission of the present utility model；
Fig. 4 is the fragmentary sectional view of automatic transmission of the present utility model；
Fig. 5 is the decomposition texture schematic diagram of automatic transmission of the present utility model.
Wherein: 1, front speed change refers to pull out；2, front shift cable set；3, rear shift cable set；4, brake lever；5, rear speed change refers to pull out；6, front brake device；7, tire；8, spoke；9, front flower-drum；11, automatic transmission；12, foot-operated；13, front change chain wheel；141, axis；142, torque sensor；143, velocity sensor；15, chain；16, shift cable before automatic transmission；17, shift cable after automatic transmission；18, front derailleur；19, rear drum；20, rear derailleur；21, flywheel is become afterwards；23, rear braking device；111, shift cable；112, left end cap；113, bearing；114, movable sleeving；115, screw rod；116, shell；117, bearing；118, fixing seat；119, motor；1110, panel；1111, power line, 1112, right end cap.
Detailed description of the invention
In order to more fully understand technology contents of the present utility model, below in conjunction with specific embodiment the technical solution of the utility model it is further described and illustrates.
As shown in Figure 1 to Figure 2, the automatic transimission of a kind of multi-speed bicycle, comprising: automatic transmission 11, this automatic transmission 11 is installed in any positions that can install such as the Chain stay of this bicycle, Seat stay, lower pipe or upper pipe；And information connects torque sensor 142 and the velocity sensor 143 of this automatic transmission 11, torque sensor 142 and velocity sensor 143 may be mounted at axis, back claw or any place that can install.One mountain bike can install one or two fluid drives, and chain wheel only has only one automatic transmission of installation of a plate gear, and chain wheel gear has two automatic transmission 11 of installation of 2 or more than 2.Having an installing hole on the left end cap 2 of automatic transmission 11 and right end cap 12, can directly be screwed on the relevant position of vehicle frame, shift cable 111 be arranged on rear derailleur 20 (front derailleur 18).
As shown in Figures 3 to 5, concrete, one end of described shift cable 111 is directly anchored on front derailleur 18 and the rear derailleur 20 of multi-speed bicycle, and the other end is fixed on movable sleeving 114 through left end cap 112；The interior tooth of movable sleeving 114 is embedded on screw rod 115, and screw rod 115 two ends are separately fixed on left end cap 112 and fixing seat 118 by bearing；Motor 119 is locked on fixing seat 118 and the rotating shaft of motor 119 is connected with screw rod 115, and left end cap 112 and right end cap 1112 and fixing seat 118 are locked on outer 116 shells of variator respectively.
Concrete, control module and motor 119 electrically connects, control the panel 1110 of module is integrated with MCU control unit, control module and be fixed on right end cap 1112.
Concrete, the MCU control unit on the panel 1110 of automatic transmission adopts wireless signal or wire signal transmission each other with torque sensor 142 and velocity sensor 143.
Concrete, this motor 119 is connected with panel 1110.
A kind of automatic speed-changing bicycle, automatic transimission including any of the above-described described multi-speed bicycle, automatic transmission 11 is installed on vehicle frame, and torque sensor 142 and velocity sensor 143 are installed on axis 141, and automatic transmission is connected with the derailleur of multi-speed bicycle.
The transmission principle of automatic transmission: control to be integrated with the internal writable formula of MCU control unit on module 1110, formula can with calculating the step number needing speed change according to the torque signals received or rate signal, then control the positive and negative of motor 119 and transfer the rotating driving screw rod 115, the rotating of screw rod 115 drives moving left and right of movable sleeving 114, moving left and right of movable sleeving 114 drives the flexible of shift cable 111, and the other end of shift cable 111 is directly anchored on the derailleur of bicycle thus realizing speed change.Because motor 119 is motor, the step number of motor 119 rotation and the time of energising can be accurately controlled by panel 1110, such that it is able to accomplish accurate speed changing effect.
When riding, automatic transmission 11 can read the numerical value of torque sensor 142 and velocity sensor 143 automatically, by calculating current riding condition and judging and carry out shifting up or downshift operation, refer to before can cancelling after having had automatic transmission pull out 1 and front shift cable 2, it is possible to refer to after cancellation pull out 5 and rear shift cable 3.
Below method of work of the present utility model is described further:
Combining 27 grades for speed change, front change chain wheel totally 3 gears, rear change flywheel totally 9 gears, the 1st gears of front change chain wheel combines with 5,6,7,8,9 gears of rear change flywheel respectively；2nd gears of front change chain wheel combines with 2,3,4,5,6,7,8 gears of rear change flywheel respectively；3rd gears of front change chain wheel combines with 1,2,3 gears of rear change flywheel respectively.If chain does not just automatically progressively change to this scope within the scope of this.
Assume the corresponding relation of the actually measured numerical value of moment and the moment analogue value: actually measured change in value unit numerical value is 2N.M, the moment analogue value be changed to 1, also tell the truth, actually measured change in value unit numerical value is 4N.M, the moment analogue value be changed to 2, the like.
Arranging flow sheet, set up the corresponding relation between the moment analogue value, speed and gear, example is following table such as:
Owing to automatic transmission energy real time record is currently located gear, also current gear can be preserved after turning off automatic transmission, so can ensure that automatic transmission will not jump out the scope set by flow sheet, meanwhile, automatic transmission can know which gears current chain drops in real time, when starting state, assume the current chain the 3rd gears at front change chain wheel, in the 1st gears of rear change flywheel, speed is zero, then:
1, when starting to ride, with according to the definition in flow sheet, starting riding speed must be at below 25KM/H, read moment measured value, if now moment measured value is 6N.M, then the corresponding moment analogue value is 3, first front change chain wheel is changed to the 2nd gears, then become afterwards flywheel no matter be in the 2nd, 3,4,5,6,7, any one gears of 8 gears all remains unchanged, speed change combination now is suitable for starting.And become flywheel after current state in the 1st gears, then adjust the 2nd gears within the scope of flow sheet.
If 2 now moment measured value be 4N.M or 2N.M, the then corresponding moment analogue value is 2 or 1, first front change chain wheel is changed in the 2nd gears, rear change flywheel is as into the 2nd gears, then remain unchanged, as rear change flywheel be the 3rd, 4,5,6,7, any gear in 8 gears, then to lowering one grade.And become flywheel after current state in the 1st gears, then adjust the 2nd gears within the scope of flow sheet.
If 3 now moment measured value be 8N.M, the then corresponding moment analogue value is 4, first front change chain wheel is changed to the 2nd gears, rear change flywheel the 2nd, 3,4,5,6, in 7 gears during any one gear, then raise a gear, become the 3rd, 4,5,6,7,8 gears.
4, when actual measurement moment values is when 10N.M, then the corresponding moment analogue value is 5, first front change chain wheel is changed to the 1st gears, and the rear flywheel that becomes progressively changes to 5 grades.
5, in all speed-change processes, as long as moment values is when increasing, will reading speed flag bit, if being now that moment gathers way and accelerates, explanation is intended to acceleration, and gear speed-changing remains unchanged, if now moment gathers way is slack-off, explanation is upward slope state, then the formula of follow procedure table definition is adjusted correspondingly gear.
And the change of moment measured value is not when reaching unit numerical value 2N.M, then the moment analogue value is not changed in, and still keeps former gear to combine.Automatic transmission continues to read moment and velocity amplitude, and if desired for carrying out shifting up or the operation of downshift, then the control module of automatic transmission sends instruction and controls actuator shift-up or downshift.
Numerical value in flow sheet can with the custom of riding according to bicyclist, and by bicyclist from Row sum-equal matrix, the moment analogue value is self-defining packet, can with according to measured data and ride characteristic by bicyclist's self-defining, and as can set that, 3N.M or 3.5N.M is unit numerical value.
The change that this utility model is the speed change according to bicycle and moment is automatically performed speed change, it is not necessary to manual operating, fundamentally instead of hands operation speed change；
The above only further illustrates technology contents of the present utility model with embodiment; so that reader is easier to understand; but do not represent embodiment of the present utility model and be only limitted to this; wherein the partial structurtes of each parts, connected mode can adjust to some extent according to practical situation; any technology done according to this utility model extends or recreation, all by protection of the present utility model.
Claims (4)
1. the automatic transimission of a multi-speed bicycle, it is characterised in that include an automatic transmission for being connected with chain-turning device of variable speed bicycle, and carry out torque sensor and the velocity sensor of signal transmission with described automatic transmission；Described automatic transmission includes gearbox case, shift cable, movable sleeving, screw rod, motor, fixing seat and controls module；One end of shift cable is for being connected with the derailleur of multi-speed bicycle, and the other end is fixed on movable sleeving through the left end cap of gearbox case；The interior tooth of movable sleeving is embedded on screw rod, and screw rod two ends are separately fixed on left end cap and fixing seat by bearing；Controlling module and motor electrical connection, motor is locked on fixing seat and its rotating shaft is connected with screw rod, and left and right end cap and fixing seat are locked in gearbox case respectively.
2. the automatic transimission of multi-speed bicycle according to claim 1, it is characterised in that be integrated with MCU control unit on the panel of described control module, controls module and is fixed on right end cap.
3. the automatic transimission of multi-speed bicycle according to claim 2, it is characterised in that the MCU control unit of described automatic transmission and torque sensor and velocity sensor adopt wireless signal or wire signal transmission each other.
4. an automatic speed-changing bicycle, it is characterized in that, automatic transimission including the arbitrary described multi-speed bicycle of claims 1 to 3, described automatic transmission is installed on vehicle frame, described torque sensor and velocity sensor are installed on axis or back claw, and automatic transmission is connected with the derailleur of multi-speed bicycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620081289.9U CN205381358U (en) | 2016-01-27 | 2016-01-27 | Speed -changing bicycle's automatic transmission and bicycle thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620081289.9U CN205381358U (en) | 2016-01-27 | 2016-01-27 | Speed -changing bicycle's automatic transmission and bicycle thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205381358U true CN205381358U (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620081289.9U Expired - Fee Related CN205381358U (en) | 2016-01-27 | 2016-01-27 | Speed -changing bicycle's automatic transmission and bicycle thereof |
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| Country | Link |
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| CN (1) | CN205381358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564584A (en) * | 2016-01-27 | 2016-05-11 | 深圳市七尚科技有限公司 | Automatic transmission for variable-speed bicycle, bicycle and speed changing method |
| US11987324B2 (en) | 2021-04-12 | 2024-05-21 | Sram, Llc | Damper for a bicycle component |
-
2016
- 2016-01-27 CN CN201620081289.9U patent/CN205381358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564584A (en) * | 2016-01-27 | 2016-05-11 | 深圳市七尚科技有限公司 | Automatic transmission for variable-speed bicycle, bicycle and speed changing method |
| CN105564584B (en) * | 2016-01-27 | 2018-07-27 | 深圳市七尚科技有限公司 | Automatic transimission and its bicycle, the method for changing speed of multi-speed bicycle |
| US11987324B2 (en) | 2021-04-12 | 2024-05-21 | Sram, Llc | Damper for a bicycle component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20200127 |