CN2089446U - Automatic speed changing device of bicycle - Google Patents
Automatic speed changing device of bicycle Download PDFInfo
- Publication number
- CN2089446U CN2089446U CN 90224240 CN90224240U CN2089446U CN 2089446 U CN2089446 U CN 2089446U CN 90224240 CN90224240 CN 90224240 CN 90224240 U CN90224240 U CN 90224240U CN 2089446 U CN2089446 U CN 2089446U
- Authority
- CN
- China
- Prior art keywords
- housing
- bicycle
- speed change
- overriding clutch
- speed
- 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 - Lifetime
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Transmission Devices (AREA)
Abstract
The utility model relates to an automatic speed changing device of a bicycle, which belongs to the class of bicycle components. The utility model mainly works in a mode that the speed of the bicycle is changed in traveling by an overrunning clutch system and a star traveling geared system apparatus arranged in a casing similar to a raising brake. The utility model has the advantages of simple structure, easy installation and little abrasion to work pieces and is especially suitable for a common bicycle to install. Speed change can be carried out without arranging a manual device when the speed is changed.
Description
The utility model relates to a kind of transmission system that is used for bicycle, belong to the bicycle assembly parts class.
Present derailleur is mostly for carrying out with the increase rear wheel sprocket or with overstriking trailing wheel extension bar axle dual mode.Plant device before it and take turns and carry out by playing the chain catena when speed change, this device is bigger to bicycle parts wear intensity, and also need add reel chain and add the additional device of an adjusting chain length with other; Though a kind of transmission system in back has solved the problem that ordinary bicycle can be installed, because being provided with complexity, speed-changing mechanism is not easy to maintenance, destructive big to parts.Above-mentioned derailleur all has a common feature, promptly all must bicycle shift be advanced with manual control.
The purpose of this utility model is: with a kind of simple in structure, the derailleur of being convenient to install is to replace present derailleur, and particularly the overstriking trailing wheel is hung the bicycle internal speed-changing device of bar axle form.
Technology contents of the present utility model is: be by a cover seemingly rise lock housing and be located at one group of gear in the housing and overriding clutch and antifriction-bearing box constitute transmission system.This device is arranged on wheel shaft one side of trailing wheel, it can carry out two fast and slow gear speed changes, and its transmission principle is: big minor sprocket 48:20 changes the 48:15 tooth into former car: with the overriding clutch output of former car formula, pass to wheel after slowing down by this device row star-wheel again, finish at a slow speed, promptly low-grade.Ratio as the 48:15 tooth is accelerated by the speed of a motor vehicle, and centnifugal force strengthens, and the centrifugal very heavy pawl of centrifugal overriding clutch connects with ratchet, and the ratio value of formation 48:15 tooth is directly passed to wheel and just realized promptly high-grade fast.Former bicycle type overriding clutch is surmounted separation at a high speed, when the speed of a motor vehicle lowers, slightly stops to pedal, and centnifugal force reduces, and centrifugal very heavy pawl sucks back under action of the spring, just gets back to low grade again.It is finished by centrifugal force controlled automatically by centrifugal overriding clutch.Below in conjunction with accompanying drawing structure of the present utility model is described in detail.
Fig. 1 is a structure cut-away view of the present utility model.
Fig. 2 is an overriding clutch combination scheme drawing.
Fig. 3 is a speed-change gear combination scheme drawing.
1 is the pearl bearing seat that looses in Fig. 1, it is shaped as a bowl-type, supporting sleeve 8 connects airtight and is inserted in bowl bottom outlet end and the wheel shaft of bearing seat, the bowl outer end hangs the butt welding of bar dish housing with ┌ shape and engages, there is the very heavy part of overriding clutch in the garden outside end, it cooperates the overdrive clutch effect of finishing with overriding clutch ratchet 7, its principle and former bicycle freewheel principle are identical.The 13rd, hang over the auxilliary bar of car on the bar dish housing, the 3rd, centrifugal overriding clutch is very heavy, the 4th, the total journey housing of speed change, centrifugal overriding clutch ratchets very heavy and total journey housing 4 left ends of speed change cooperate, borehole jack is at the minor axis of hanging bar dish housing, during work, must possess centnifugal force and just begin the overdrive clutch effect later on, its spring control is opposite with former bicycle overriding clutch.Left end at the total journey housing 4 of speed change is provided with overriding clutch ratchet 7.The centre is an inner gear, the right side cylindrical connects trailing wheel minor sprocket 16, with being threaded, circle is with the bearing 6 rolling axostylus axostyles central sun gear 11 that is connected in the right side, it encloses 11 rotations of center sun wheel during work, and star gear and bearing 5 are connected between total journey housing 4 of speed change and center sun wheel and do decelerated movement.The antifriction-bearing box 6 overcoats total journey housing of speed change that excessively is connected, interior cover connects center sun wheel 11, and effect is the position that keeps the total journey housing 4 of speed change and center sun wheel 11, and overriding clutch ratchet 5 cooperates the overdrive clutch effect of finishing with diffusing pearl bearing seat 1.Be responsible for transmitting the power that comes from the reduction planetary train, rear vehicle shaft 9 and rear wheel loose pearl axle shelves 10 and center sun wheel with being threaded, and effect is to axle shelves and sun gear location, and axle grade is connected with rear vehicle shaft, effect is to make the pearl axle that looses enclose it to move in a circle, i.e. wheel.Central sun gear and rear vehicle shaft 9 are by being threaded, and with the axle shelves, rear vehicle shaft 9 is close to, clamp with screw thread with vehicle frame, effect has been the planet circular system center, make total journey housing of inner gear speed change and star gear and bearing enclose its rotation, star gear minor axis 12 is connected with the firm butt welding of overriding clutch ratchet, effect is that star gear and bearing 5 enclose it and make circular movement, power is passed to the pearl bearing seat 1 that looses to turn a wheel, very heavy minor axis 12 of centrifugal overriding clutch and the 2 firmly welding of extension bar dish housing, cooperate with centrifugal overriding clutch very heavy 3, effect is when 3 possess centrifugal force work power to be passed to 2 to drive wheel revolutions, spring 15 supports centrifugal very heavy, and will be centrifugal very heavy being controlled at separated with the ratchet maintenance before not possessing the centnifugal force of appointment.When centnifugal force during greater than the equilibrium point of spring force and centnifugal force, centrifugal very heavy open to do to surmount with ratchet separate and engage, driving chain wheel 16 is threaded with total journey housing 4 usefulness of speed change, effect is to undertake to transmit mechanism and quick mechanism main gear task at a slow speed, by 48
Big wheel shaft directly drives.
The utility model is simple in structure, and is easy for installation, and it is less to the parts abrasion that the back is installed, and operation control mainly is to control speed change with the speed of bicycle when leaning against bicycle and advancing.
Claims (1)
1, a kind of automatic bicycle speed variator, be by diffusing pearl bearing seat 1, hang bar dish housing 2, centrifugal overriding clutch is very heavy 3, the total journey housing 4 of speed change, star gear and bearing 5, bearing 6, overriding clutch ratchet 7, middle supporting sleeve 8, rear vehicle shaft 9, the back car pearl axle shelves 10 that loose, center sun wheel 11, star gear minor axis 12, car is assisted bar 13, the movable very heavy minor axis 14 of centrifugal overriding clutch, spring 15, driving chain wheel 16 constitutes, and it is characterized in that: hang bar dish housing 2 and be ┌ shape, its medial extremity welds mutually with diffusing pearl bearing seat 1 outer end, the total journey housing of the other end and speed change 4 plugs by screw thread, and the total journey housing 4 of speed change joins with driving chain wheel 16 medial extremitys, by diffusing pearl bearing seat 1, hang bar dish housing 2, the total journey housing of speed change 4 constitutes the housing of the similar lock that rises, and what be provided with left end in this housing is the overriding clutch system and device, right-hand member be the capable gear train device of star.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90224240 CN2089446U (en) | 1990-11-23 | 1990-11-23 | Automatic speed changing device of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90224240 CN2089446U (en) | 1990-11-23 | 1990-11-23 | Automatic speed changing device of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2089446U true CN2089446U (en) | 1991-11-27 |
Family
ID=4901850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90224240 Expired - Lifetime CN2089446U (en) | 1990-11-23 | 1990-11-23 | Automatic speed changing device of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2089446U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481756A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of fixed Two-wheeled third gear fully-automatic gearbox of centre wheel gear ring |
| CN106481754A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of multi gear automatic internal speed variator of real |
| CN106523608A (en) * | 2016-12-31 | 2017-03-22 | 张家港川梭车业有限公司 | Third-gear dual-wheel-driven full automatic transmission |
| CN109826881A (en) * | 2019-03-21 | 2019-05-31 | 金辉哲 | A kind of planetary gear one-way clutch |
-
1990
- 1990-11-23 CN CN 90224240 patent/CN2089446U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481756A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of fixed Two-wheeled third gear fully-automatic gearbox of centre wheel gear ring |
| CN106481754A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of multi gear automatic internal speed variator of real |
| CN106523608A (en) * | 2016-12-31 | 2017-03-22 | 张家港川梭车业有限公司 | Third-gear dual-wheel-driven full automatic transmission |
| CN106523608B (en) * | 2016-12-31 | 2018-11-02 | 张家港川梭车业有限公司 | A kind of third gear Two-wheeled fully-automatic gearbox |
| CN109826881A (en) * | 2019-03-21 | 2019-05-31 | 金辉哲 | A kind of planetary gear one-way clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |