CN201151464Y - Variable bicycle and hind axle planet gear transmission thereof - Google Patents
Variable bicycle and hind axle planet gear transmission thereof Download PDFInfo
- Publication number
- CN201151464Y CN201151464Y CNU2007202011858U CN200720201185U CN201151464Y CN 201151464 Y CN201151464 Y CN 201151464Y CN U2007202011858 U CNU2007202011858 U CN U2007202011858U CN 200720201185 U CN200720201185 U CN 200720201185U CN 201151464 Y CN201151464 Y CN 201151464Y
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- Prior art keywords
- ratchet
- axle sleeve
- contained
- gear ring
- planetary carrier
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Abstract
The utility model discloses a rear axle planetary gear transmission and a variable speed bicycle manufactured by the using of the rear axle planetary gear transmission, which relates to the technical field of bicycle manufacturing. The rear wheel hub of the variable speed bicycle is connected with the rear axle central axis sleeve of the rear axle planetary gear transmission; the central sun gear, the gear ring and the planetary gear stent of the rear axle planetary gear transmission are all movably sleeved out side of the rear axle central axis sleeve; a ratchet and pawl mechanism is arranged between the gear ring and the planetary gear stent, and another ratchet and pawl mechanism is arranged between the gear ring and the central axis sleeve; the central sun gear is provided with a shift braking plate, and the shift braking plate is arranged beside a braking piece which is connected with a frame; and a chain tooth is arranged on the planetary gear stent so as to be meshed with a driving chain. The rear axle planetary gear transmission of the utility model mainly aims at solving the problems that the rear axle planetary gear transmission of a present bicycle can not shift and is inconvenient to be assembled and maintained.
Description
Technical field
The utility model relates to bicycle manufacturing technology field, particularly a kind of bicycle with variable-speed drive.
Technical background
In order to adapt to pedaling the dynamics of stepping on, speed and satisfying the moving velocity that changes significantly of cyclist, bicycle need be provided with the variable-speed drive that can shift gears in power drive.The speed change transmission is more reliable, transmission gear shift is bigger than scope in order to pursue, the applicant in first to file " speed variable bicycle drive device " (license notification number: CN 2393812Y, Granted publication day: on August 30th, 2000), this technical scheme is respectively to be provided with a planet gear transmission at bicycle middle shaft and rear axle, the gear ring and the vehicle frame of rear axle planetary gearbox are wherein fixed, flywheel on planetary carrier and the rear axle is fixed, the speed-changing mechanism that this structure is provided with can only speed change, and can not shift gears, be not easy to many grades of speed changes of variable speed bicycle.In addition, the center sun wheel of the rear axle planetary gearbox of this technology is to be contained on the wheel hub of trailing wheel, and planetary carrier is to be contained on the hind axle, the whole mounting or dismounting of the rear axle planetary gearbox of this structure, and I﹠ M is all inconvenient.
Summary of the invention
Variable speed bicycle provided by the utility model and rear axle planetary gearbox thereof, what it mainly solved is the problem that existing bicycle rear axle planetary gearbox can not be shifted gears and is not easy to assemble, safeguard.
In order to address the above problem, variable speed bicycle of the present utility model, be connected with a rear axle planetary gearbox on the wheel hub of its trailing wheel, center sun wheel, gear ring and the planetary carrier of described rear axle planetary gearbox all is contained in outside rear shaft center's axle sleeve versatilely, and described wheel hub is fixedly connected on this rear shaft center's axle sleeve; Between described gear ring and the described planetary carrier ratchet and pawl arrangement is housed, between described gear ring and the described central axle sleeve ratchet and pawl arrangement is housed; Described center sun wheel is provided with the gearshift brake disc, and this gearshift brake disc is contained in by the brake component that connects to ground, and described planetary carrier is provided with chain tooth and driving chain engagement.
Above-mentioned gear ring is fixedly connected with axle sleeve in the middle of, and set ratchet and pawl arrangement is by being located at the ratchet ring in the described planetary carrier and being fixedly connected on the pawl base that this tween drive shaft puts and being contained in the ratchet on this pawl base and the spring that acts on the ratchet constitutes between described gear ring and the described planetary carrier; Ratchet and pawl arrangement between described gear ring and the described central axle sleeve be by be located at described in the middle of in the axle sleeve ratchet ring and be contained in the ratchet on the described rear shaft center axle sleeve and the spring that acts on the ratchet constitutes.Axle sleeve can be contained in outside the described rear shaft center axle sleeve by the ball of annular arrangement in the middle of above-mentioned; Above-mentioned planetary carrier can be contained in by the ball of annular arrangement outside the described middle axle sleeve; Above-mentioned center sun wheel can be contained in outside the beam barrel of described planetary carrier by the ball of annular arrangement.More specifically, above-mentioned gearshift brake disc can be the pan that is provided with ratchet, and is corresponding therewith, and above-mentioned brake component then is that correspondence is located at the other braking ratchet of brake disc ratchet.
Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1, because whole rear axle planetary gearbox is a form with an assembly is contained on the rear wheel hub by rear shaft center's axle sleeve, can install and remove whole rear axle planetary gearbox in rear wheel hub, and the patent that is unlike in first to file is such, when the rear axle planetary gearbox when rear wheel hub is pulled down, whole rear axle planetary gearbox all will be broken.Therefore, no matter be to install and maintenance, rear axle planetary gearbox dismounting of the present utility model is safeguarded very convenient.
2, on the sun wheel of center, be provided with the gearshift brake disc, and the brake disc of will shifting gears is contained in by the brake component that connects to ground, rotation by braking brake disc control center sun wheel with otherwise can realize the gearshift of rear axle planetary gearbox, its transmitting ratio of conversion, if add the axis manual transmission, can allow variable speed bicycle that bigger speed ratio variation range is arranged.
Description of drawings
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the left view of rear axle planetary gearbox among the utility model embodiment.
Fig. 3 is the right elevation of rear axle planetary gearbox among the utility model embodiment.
The specific embodiment
Variable speed bicycle as shown in Figure 1 to Figure 3 is connected with a rear axle planetary gearbox on the wheel hub 132 of its trailing wheel, all parts of this rear axle planetary gearbox all are contained in outside rear shaft center's axle sleeve 104.Axle sleeve 102 in the middle of wherein gear ring 101 is fixedly connected with one, middle axle sleeve 102 is contained in outside rear shaft center's axle sleeve 104 by ball 103,126, adjusting disk 127 and the end ring 128 of annular arrangement; Planetary carrier 112 is contained in outside gear ring 101 and the middle axle sleeve 102 by the ball 110,124 and the end ring 125 of annular arrangement; Center sun wheel 119 is contained in outside the beam barrel of planetary carrier 112 by ball 111,120, adjusting disk 122 and the end ring 121 of annular arrangement.
This variable speed bicycle at work, the rear axle planetary gear speed-changing has two gears when the wheel hub 132 that drives trailing wheel by rear shaft center's axle sleeve 104 rotates, the one, when the braking ratchet 118B that connects to ground breaks away from brake disc 118, driving chain 131 drives chain tooth 123, planetary carrier 112 rotates, and the wheel hub 132 that drives rear shaft center's axle sleeve 104, trailing wheel by ratchet 109,130, pawl base 107, middle axle sleeve 102, ratchet 106,129 rotates synchronously simultaneously; The 2nd, when the braking ratchet 118B that connects to ground blocks brake disc 118, driving chain 131 drives chain tooth 123, planetary carrier 112 rotates, planetary carrier 112 drives gear ring 101 by planetary wheel 116 and quickens to rotate, at this moment, the ratchet ring of ratchet 109,130 in planetary carrier 112 skids, and gear ring 101 adds also rotation by the wheel hub 132 that middle axle sleeve 102, ratchet 106,129 drive rear shaft center's axle sleeve 104, trailing wheel with the rotating speed that surpasses chain tooth 123.106,129 on ratchet skids when chain tooth 123 reversings.When needs change the rear axle planetary gearbox, only need take a captive nut apart and just can pull down whole rear axle planetary gearbox.In like manner can conveniently load onto new or rear axle planetary gearbox in good repair.
Claims (8)
1. variable speed bicycle, be connected with a rear axle planetary gearbox on the wheel hub of its trailing wheel, it is characterized in that: center sun wheel, gear ring and the planetary carrier of described rear axle planetary gearbox all is contained in outside rear shaft center's axle sleeve versatilely, and described wheel hub is fixedly connected on this rear shaft center's axle sleeve; Between described gear ring and the described planetary carrier ratchet and pawl arrangement is housed, between described gear ring and the described central axle sleeve ratchet and pawl arrangement is housed; Described center sun wheel is provided with the gearshift brake disc, and this gearshift brake disc is contained in by the brake component that connects to ground, and described planetary carrier is provided with chain tooth and driving chain engagement.
2. change-speed box bicycle according to claim 1, it is characterized in that: described gear ring is fixedly connected with axle sleeve in the middle of, and set ratchet and pawl arrangement is by being located at the ratchet ring in the described planetary carrier and being fixedly connected on the pawl base that this tween drive shaft puts and being contained in the ratchet on this pawl base and the spring that acts on the ratchet constitutes between described gear ring and the described planetary carrier; Ratchet and pawl arrangement between described gear ring and the described central axle sleeve be by be located at described in the middle of in the axle sleeve ratchet ring and be contained in the ratchet on the described rear shaft center axle sleeve and the spring that acts on the ratchet constitutes.
3. change-speed box bicycle according to claim 2 is characterized in that: axle sleeve is contained in outside the described rear shaft center axle sleeve by the ball of annular arrangement in the middle of described; Described planetary carrier is contained in outside the described middle axle sleeve by the ball of annular arrangement; Described center sun wheel is contained in outside the beam barrel of described planetary carrier by the ball of annular arrangement.
4. according to claim 1,2 or 3 described change-speed box bicycles, it is characterized in that: described gearshift brake disc is the pan that is provided with ratchet, and described brake component is the corresponding other braking ratchet of brake disc ratchet that is located at.
5. rear axle planetary gearbox, the center sun wheel is arranged and be engaged on a plurality of satellite gears and planetary carrier between this center sun wheel and the gear ring, it is characterized in that: described center sun wheel, gear ring and planetary carrier all are contained in outside rear shaft center's axle sleeve versatilely; Between described gear ring and the described planetary carrier ratchet and pawl arrangement is housed, between described gear ring and the described central axle sleeve ratchet and pawl arrangement is housed; Described center sun wheel is provided with gearshift braking parts, and described planetary carrier is provided with chain tooth.
6. rear axle planetary gearbox according to claim 5, it is characterized in that: described gear ring be fixedly connected with axle sleeve in the middle of, set ratchet and pawl arrangement is by being located at the ratchet ring in the described planetary carrier and being fixedly connected on the pawl base that this tween drive shaft puts and being contained in the ratchet on this pawl base and the spring that acts on the ratchet constitutes between described gear ring and the described planetary carrier; Ratchet and pawl arrangement between described gear ring and the described central axle sleeve be by be located at described in the middle of in the axle sleeve ratchet ring and be contained in the ratchet on the described rear shaft center axle sleeve and the spring that acts on the ratchet constitutes.
7. rear axle planetary gearbox according to claim 6 is characterized in that: axle sleeve is contained in outside the described rear shaft center axle sleeve by the ball of annular arrangement in the middle of described; Described planetary carrier is contained in outside the described middle axle sleeve by the ball of annular arrangement; Described center sun wheel is contained in outside the beam barrel of described planetary carrier by the ball of annular arrangement.
8. according to claim 5,6 or 7 described rear axle planetary gearboxs, it is characterized in that: described gearshift brake disc is the pan that is provided with ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202011858U CN201151464Y (en) | 2007-10-19 | 2007-10-19 | Variable bicycle and hind axle planet gear transmission thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007202011858U CN201151464Y (en) | 2007-10-19 | 2007-10-19 | Variable bicycle and hind axle planet gear transmission thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201151464Y true CN201151464Y (en) | 2008-11-19 |
Family
ID=40127143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007202011858U Expired - Lifetime CN201151464Y (en) | 2007-10-19 | 2007-10-19 | Variable bicycle and hind axle planet gear transmission thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201151464Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381432A (en) * | 2011-10-06 | 2012-03-21 | 张卫 | Coaxial transmission |
| CN102501939A (en) * | 2011-11-04 | 2012-06-20 | 陈戈平 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
-
2007
- 2007-10-19 CN CNU2007202011858U patent/CN201151464Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381432A (en) * | 2011-10-06 | 2012-03-21 | 张卫 | Coaxial transmission |
| CN102501939A (en) * | 2011-11-04 | 2012-06-20 | 陈戈平 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
| CN102501939B (en) * | 2011-11-04 | 2013-11-06 | 陈戈平 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |