CN2429432Y - Gear drive of speed variable bicycle - Google Patents
Gear drive of speed variable bicycle Download PDFInfo
- Publication number
- CN2429432Y CN2429432Y CN 00210358 CN00210358U CN2429432Y CN 2429432 Y CN2429432 Y CN 2429432Y CN 00210358 CN00210358 CN 00210358 CN 00210358 U CN00210358 U CN 00210358U CN 2429432 Y CN2429432 Y CN 2429432Y
- Authority
- CN
- China
- Prior art keywords
- gear
- bearing
- bevel gear
- king bolt
- flat key
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a drive structure of a bicycle, i.e., a gear drive mechanism of a speed variable bicycle. The utility model is characterized in that the utility model is composed of a first rear shaft assembly, a second gearbox assembly, and a third drive shaft assembly; the utility model replaces a traditional chain drive with a gear drive. The utility model has the advantages that the utility model adopts a closure type drive mode, and therefore, the utility model is dustless, the lubrification is favorable, the service life is three times the length of the service life of an ordinary bicycle chain; a spiral bevel gear is adopted, and therefore, the drive is smooth, and the drive torque is large; the speed change transmission ratios of the mechanism are one to thirty-five, one to twenty-four, and one to eighteen, the speeds of the mechanism are quick speed, middle speed, and slow speed, and therefore, compared with a bicycle with a chain drive, the labor of the utility model can be saved 22 per cent.
Description
The utility model relates to a kind of drive mechanism of bicycle, the gear drive of-variable speed bicycle.
At present, both at home and abroad the traditional type of drive of bicycle trade is chain gear, often needs lubricatedly during use, also exists and stings clothing, greasy dirt is arranged and easily fall the shortcoming of blockchain.The variable speed bicycle of Chu Xianing is to replace chain gear with gear transmission in recent years, and it has good lubricity, long service life, and its driving torque, mechanical efficiency all are better than chain gear.
The utility model is the chain transmission mode of bicycle for a change, makes bicycle reach the laborsaving purpose of fast speed again when riding, and a kind of gear drive of variable speed bicycle is provided.
The gear drive content Description of the utility model variable speed bicycle:
The gear drive of the utility model variable speed bicycle is characterized in that: assembled three parts and formed by the assembling of I rear axle, the assembling of II gear case, III transmission shaft;
I rear axle assembled portion is to be made of with trip ring, needle bearing, packing ring, ratchet, back king bolt bevel gear core, back king bolt bevel gear, steel ball, Zhu Dao, backshaft skin, bearing, bearing retaining: rear axle, nut, bearing retaining, right supporting cover, axle; The centre of rear axle is a backshaft skin, end at rear axle is installed a bearing, fix and an end of the backshaft skin of packing into by axle bumper, the other end at backshaft skin screws in back king bolt bevel gear core in the inner bolt hole of backshaft skin, Zhu Dao is enclosed within on the external diameter of back king bolt bevel gear core, steel ball moves in the pearl road, between back king bolt bevel gear core and rear axle, a needle bearing is set, king bolt bevel gear after packing on the external diameter of back king bolt bevel gear core, packing ring on its end face is fixed with spring by axle, and needle bearing bearing at end retaining and right supporting cover are fastening by nut; On the king bolt bevel gear core of back, open two grooves, built-in two ratchets;
The II gear case partly is to be made of: casing, preceding king bolt bevel gear, little low speed gear, gear wheel shaft, flat key, gear, bearing, bearing cover shell, axis, circular nut, intermediate gear, screw, high speed gear, low speed gear, declutch shift shaft, shift fork; The casing that the Q215 material is made is welded on the vehicle frame of bicycle, the shift fork declutch shift shaft of packing into, shift fork is done back and forth movement on declutch shift shaft, by screw retention in casing; Intermediate gear, high speed gear, low speed gear are linked together by flat key, and middle splined portion of shaft cooperates with the female splines of intermediate gear, and it is fastening by a circular nut that the two ends of axis are furnished with bearing and the bearing cover shell casing of packing into; With little low speed gear by flat key with after preceding king bolt bevel gear is connected, be connected and fixed by flat key and gear wheel shaft again, a gear is connected and fixed by flat key and gear wheel shaft, fixes by trip ring in the two ends of gear wheel shaft dress bearing and bearing cover shell are packed casing into;
The III transmission shaft partly is to be made of: flat key, preceding screw bevel gear, bearing, transmission shafts skin, transmission shaft, back nut, rear screw bevel gear; At an end of the transmission shaft bearing of packing into, be connected and fixed by a flat key and rear screw bevel gear, bearing is contained in the transmission shafts intracutaneous, the bearing of the other end of transmission shaft is connected and fixed by flat key and preceding screw bevel gear.
The gear drive of the utility model variable speed bicycle replaces traditional chain gear with gear transmission, the enclosed type of drive, and free from dust is polluted, and has good lubricity, and its long service life is three times of ordinary bicycle chain life-span; Adopt screw bevel gear to make the bicycle stable drive, driving torque is big; The variator drive ratio of this mechanism be 1: 35,1: 24,1: 18 for fast, in, slow three kinds of speed, reach 22% than chain gear bicycle labor saving.
Embodiment:
Fig. 1 is the gear drive integral structure scheme drawing of variable speed bicycle
The gear drive of the utility model variable speed bicycle is achieved in that sees Fig. 1, is assembled three parts and is formed by the assembling of I rear axle, the assembling of II gear case, III transmission shaft;
I rear axle assembled portion is to be made of with trip ring 5, needle bearing 6, packing ring 7, ratchet 8, back king bolt bevel gear core 9, back king bolt bevel gear 10, steel ball 11, pearl road 12, backshaft skin 13, bearing 14, bearing retaining 15: rear axle 1, nut 2, bearing retaining 3, right supporting cover 4, axle; The centre of rear axle 1 is a backshaft skin 13, at an end of rear axle 1 bearing 14 is installed, one end of and pack backshaft skin 13 fixing by bearing retaining 15, the other end at backshaft skin 13 screws in back king bolt bevel gear core 9 in the inner bolt hole of backshaft skin 13, pearl road 12 is enclosed within on the external diameter of back king bolt bevel gear core 9, steel ball 11 moves in pearl road 12, overcome the axial force of back king bolt bevel gear 10, between back king bolt bevel gear core 9 and rear axle 1, a needle bearing 6 is set, king bolt bevel gear 10 after packing on the external diameter of back king bolt bevel gear core 9, packing ring 7 on its end face is fixed with spring by axle, and needle bearing 6 bearing at end retaining 3 and right supporting cover 4 are fastening by nut 2; Open two grooves on back king bolt bevel gear core 9, built-in two ratchets 8 can drive bicycle rear rotation and intermittence;
The II gear case partly is to be made of: casing 16, preceding king bolt bevel gear 17, little low speed gear 18, gear wheel shaft 19, flat key 20,21, gear 22, bearing 23,27, bearing cover shell 24,26, axis 25, circular nut 28, intermediate gear 29, screw 30, flat key 31, high speed gear 32, low speed gear 33, declutch shift shaft 34, shift fork 35; To be welded in by the casing 16 that the Q215 material is made on the vehicle frame of bicycle, shift fork 35 declutch shift shaft 34 of packing into is fixed in the casing 16 by screw 30; Intermediate gear 29, high speed gear 32, low speed gear 33 are linked together by flat key 31, and the splined section of axis 25 cooperates with the female splines of intermediate gear 29, and it is fastening by a circular nut 28 that the two ends of axis 25 are furnished with bearing 27 and bearing cover shell 26 casing 16 of packing into; With little low speed gear 18 by flat key 20 with after preceding king bolt bevel gear 17 is connected, be connected and fixed by flat key 20 and gear wheel shaft 19 again, one gear 22 is connected and fixed by another flat key 21 and gear wheel shaft 19, fixes by trip ring in the two ends of gear wheel shaft 19 dress bearing 23 and bearing cover shell 24 are packed casing 16 into;
The III transmission shaft partly is to be made of: flat key 36, preceding screw bevel gear 37, bearing 38, transmission shafts skin 39, transmission shaft 40, bearing 41, back nut 42, flat key 43, rear screw bevel gear 44; At an end of transmission shaft 40 bearing 41 of packing into, be connected and fixed with rear screw bevel gear 44 by a flat key 43, another bearing 38 is contained in the transmission shafts skin 39, the bearing 38 of transmission shaft 40 is connected and fixed by flat key 36 and preceding screw bevel gear 37; With the thread end of transmission shafts skin 39 screw in gear housing 16 female adapter in fastening, screw bevel gear 37 and preceding king bolt bevel gear 17 engagements before making, the other end of transmission shaft 40 is by back nut 42 and right supporting cover 4 screw threads for fastening, in order to guarantee the correct engagement of gear, the right chain stay of the other end of rear axle and vehicle frame is fastening.
The transmission order:
Be rotatably installed in the rot in the bicycle handle bar, make its speed change wire motion, outlet seat and 35 motions of pulley pulling shift fork by the gear case part, the spline of intermediate gear 29, high speed gear 32, low speed gear 33 Yanzhong axles 25 is moved reciprocatingly, make gear and high speed gear 32, little low speed gear 18 and low speed gear 33 correct engagement of gear 22 and intermediate gear 29, gear wheel shaft 19, reach 1: 24,1: 35,1: 18 middle and high, low transmitting ratio.After axle rotates, the preceding screw bevel gear 37, the rear screw bevel gear 44 that are driven on the transmission shafts 40 by the preceding king bolt bevel gear on the gear case 17 rotate, and reach rear axle rotation and intermittent moment by back king bolt bevel gear 10 engagements of rear screw bevel gear 44 and hind axle part by ratchet device.
Claims (1)
1, a kind of gear drive of variable speed bicycle is characterized in that: assembled three parts and formed by the assembling of I rear axle, the assembling of II gear case, III transmission shaft;
I rear axle assembled portion is to be made of with trip ring, right supporting cover, needle bearing, packing ring, ratchet, back king bolt bevel gear core, back king bolt bevel gear, plane bearing, backshaft skin, bearing, bearing retaining, ratchet, spring coil: rear axle, nut, bearing retaining, axle; The centre of rear axle is a backshaft skin, end at rear axle is installed a bearing, fix and an end of the backshaft skin of packing into by axle bumper, the other end at backshaft skin screws in back king bolt bevel gear core in the inner bolt hole of backshaft skin, Zhu Dao is enclosed within on the external diameter of back king bolt bevel gear core, steel ball moves in the pearl road, between back king bolt bevel gear core and rear axle, a needle bearing is set, king bolt bevel gear after packing on the external diameter of back king bolt bevel gear core, packing ring on its end face is fixed with spring by axle, and needle bearing bearing at end retaining and right supporting cover are fastening by nut; On the king bolt bevel gear core of back, open two grooves, built-in two ratchets;
The II gear case partly is to be made of: casing, preceding king bolt bevel gear, little low speed gear, gear wheel shaft, flat key, gear, bearing, bearing cover shell, axis, circular nut, intermediate gear, screw, high speed gear, low speed gear, declutch shift shaft, shift fork; The casing that the Q215 material is made is welded on the vehicle frame of bicycle, the shift fork declutch shift shaft of packing into, shift fork is done back and forth movement on declutch shift shaft, by screw retention in casing; Intermediate gear, high speed gear, low speed gear are linked together by flat key, and middle splined portion of shaft cooperates with the female splines of intermediate gear, and it is fastening by a circular nut that the two ends of axis are furnished with bearing and the bearing cover shell casing of packing into; With little low speed gear by flat key with after preceding king bolt bevel gear is connected, be connected and fixed by flat key and gear wheel shaft again, a gear is connected and fixed by flat key and gear wheel shaft, fixes by trip ring in the two ends of gear wheel shaft dress bearing and bearing cover shell are packed casing into;
The III transmission shaft partly is to be made of: flat key, preceding screw bevel gear, bearing, transmission shafts skin, transmission shaft, back nut, rear screw bevel gear; At an end of the transmission shaft bearing of packing into, be connected and fixed by a flat key and rear screw bevel gear, bearing is contained in the transmission shafts intracutaneous, the bearing of the other end of transmission shaft is connected and fixed by flat key and preceding screw bevel gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210358 CN2429432Y (en) | 2000-09-21 | 2000-09-21 | Gear drive of speed variable bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00210358 CN2429432Y (en) | 2000-09-21 | 2000-09-21 | Gear drive of speed variable bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429432Y true CN2429432Y (en) | 2001-05-09 |
Family
ID=33577257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00210358 Expired - Fee Related CN2429432Y (en) | 2000-09-21 | 2000-09-21 | Gear drive of speed variable bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429432Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974240A (en) * | 2017-05-31 | 2018-12-11 | 卢金堂 | A kind of bicycle or electric bicycle transmission device |
-
2000
- 2000-09-21 CN CN 00210358 patent/CN2429432Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974240A (en) * | 2017-05-31 | 2018-12-11 | 卢金堂 | A kind of bicycle or electric bicycle transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C28 | Revocation of patent right or utility model | ||
| RW01 | Full revocation of patent right |
Decision date of revocation: 20030124 |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |