CN2526253Y - Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft - Google Patents
Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft Download PDFInfo
- Publication number
- CN2526253Y CN2526253Y CN 02209849 CN02209849U CN2526253Y CN 2526253 Y CN2526253 Y CN 2526253Y CN 02209849 CN02209849 CN 02209849 CN 02209849 U CN02209849 U CN 02209849U CN 2526253 Y CN2526253 Y CN 2526253Y
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- bicycle
- speed
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- axle
- centrifugal
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Abstract
The utility model relates to an automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft which has a solid bicycle shaft. The solid bicycle shaft is provided with an automatic speed variator. One end has a power input teeth wheel and the other end has a shift output wheel hub. One side in the variator casing has a three block variator, and the block of the three block variator has a block position cross drive plate at the vehicle shaft. The power input teeth wheel has a cross drive plate matching with the block cross drive plate. The cross drive plate has a gradually depressed two-stage ladder table along the axial direction. The casing and the vehicle shaft are sleeved with a spline sleeve, and one end of the spline sleeve is connected with a block spline. The other side of the casing has a centrifugal drive device which is connected with the spline sleeve through a flexible piece. The spline sleeve and the casing are respectively provided with a reset magnet corresponding with the same pole. The vehicle shaft of the utility model is solid with low cost, being capable of guaranteeing the intensity of shaft and high flexible driving efficiency. When in riding, from low block to high block, the drivers is not necessary to delay a foot and when in low-speed riding, the original block can be kept with convenient riding.
Description
Technical field
The utility model relates to gear cross dial and the connection structure of centrifugal driving device, the Bringing-back mechanism of gear cross dial and the cross shift fork on the power input gear wheel of a kind of automatic speed-changing device for bicycle, particularly a kind of automatic speed-changing device for bicycle.
Background technology
Chinese patent 99 2 24178.2 discloses a kind of automatic speed-changing device for bicycle, this automatic speed-changing device for bicycle has hollow axle for bicycle, be with automatic transmission with hydraulic torque converter on the hollow axle for bicycle, automatic transmission with hydraulic torque converter has case of transmission, the dynamic input gear wheel of one end of housing, the other end of housing has the speed change output hub, in the case of transmission, have by ratchet between power input gear wheel and speed change output hub, three shift transmissions that planetary wheel etc. are formed, three shift transmissions have three speed thresholds vertically, gear cross dial is arranged on three speed thresholds, on the power input gear wheel cross shift fork that cooperates with gear cross dial is arranged, opposite side in housing has centrifugal driving device, between speed change output hub and the centrifugal driving device planet gear speeder is arranged, planet gear speeder makes the rotating speed of centrifugal driving device be higher than the rotating speed of speed change output hub, centrifugal driving device has the runner with the axle for bicycle coaxial line, uniform hinge joint has centrifugal on the runner circumference, centrifugal is lever construction, an arm of centrifugal of lever construction is a centrifugal hammer, another arm is a moving arm, moving arm is connected with the control dial that is enclosed within on the axletree, connecting rod is arranged in the hollow shaft, gear cross dial and control dial place have radially groove respectively on the hollow shaft, two radially the groove place have radial peg that connecting rod and gear cross dial and control dial are connected together, between connecting rod and the spindle nose retracing spring is arranged, retracing spring makes connecting rod be subjected to making gear cross dial to be in power on the minimum gear.This automatic speed-changing device for bicycle also influences the intensity of axle because axle for bicycle is a hollow shaft, and not only cost is higher; In addition, resetting of gear cross dial is the elastic force that leans on the retracing spring between connecting rod and the housing, and spring is between connecting rod and housing, makes the complex structure of change-speed box; Have again, centrifugal driving device is that order is linked to each other with connecting rod by the control dial with gear cross dial, when centrifugal hammer during because of centrifugal generation displacement, moving arm is stirred the control dial and is driven the slip of gear cross dial by connecting rod, moving arm is stirred in the transmission of control dial, because of radial component being arranged, influence control driving efficiency; Also have, a kind of bicycle speed-varying unit is disclosed among Chinese patent 00 2 52547.X, this bicycle speed-varying unit have with above-mentioned automatic speed-changing device for bicycle in the most of three identical shift transmissions of three shift transmissions, difference is for keeping gear stable, three dark grooves are arranged on the cross shift fork on the power input gear wheel etc., projection is arranged, during traveling on gear cross dial, projection on groove on the cross shift fork and the gear cross dial is meshed, and is stable in order to keep gear.This bicycle speed-varying unit is because the groove on the cross shift fork such as is at dark groove, it during traveling ingear, when ascending, descending keeps off, people by bike must delay pedals a pin, make it jump out of mesh, could realize the ascending, descending retaining, particularly for the automatic speed-changing device for bicycle that centrifugal driving device is arranged, when low gear rises up into high gear, people by bike must estimate whether the speed of riding reaches the speed of upshift, when estimating that the speed of riding has reached the speed of upshift, also needs the slow pin of pedaling again, could realize self shifter, so very inconvenient when riding.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, a kind of simple in structure, high solid axle automatic speed-changing device for bicycle of control driving efficiency is proposed, this solid axle automatic speed-changing device for bicycle is when low gear rises up into high gear, people by bike needn't estimating speed, needn't delay and pedal a pin, as long as the speed of riding reaches the speed of gearshift, just can realize the self-shifting magnetic force cushion drive solid axle automatic speed-changing device for bicycle that resets.
The utility model is realized with the following method.
The magnetic force cushion drive solid axle automatic speed-changing device for bicycle that resets has solid axle for bicycle, be with automatic transmission with hydraulic torque converter on the solid axle for bicycle, automatic transmission with hydraulic torque converter has case of transmission, the dynamic input gear wheel of one end of housing, the other end of housing has the speed change output hub, in the case of transmission, have by ratchet between power input gear wheel and speed change output hub, three shift transmissions that planetary wheel etc. are formed, three shift transmissions have three speed thresholds vertically, there is the gear cross dial that is enclosed within on the axletree at the gear place of three change-speed boxs, on the power input gear wheel cross shift fork that cooperates with gear cross dial is arranged, on the cross shift fork on the power input gear wheel two-stage ladder platform that reduces is gradually arranged vertically, in the housing, be with splined sleeve on the axle for bicycle, one end of splined sleeve links to each other with gear cross dial, opposite side in housing has centrifugal driving device, between speed change output hub and the centrifugal driving device planet gear speeder is arranged, planet gear speeder makes the rotating speed of centrifugal driving device be higher than the rotating speed of speed change output hub, centrifugal driving device has the runner with the axle for bicycle coaxial line, be evenly equipped with centrifugal that to radially slide on the runner circumference, centrifugal links to each other with flexible element with the other end of splined sleeve, reset magnet is arranged respectively on splined sleeve and the housing, and the homopolarity of magnet is relative.
Axletree of the present utility model is positioned on the back shaft position of bicycle rack, and gear wheel is meshed with the blockchain bar, is composed of bike spoke between speed change output hub and the back rim.Ride the time spent, when low speed, the control dial is relative because of homopolarity with reset magnet on the housing, magnetic force repels each other, gear cross dial is on the minimum gear, during speed-raising, the speed change output hub drives centrifugal rotation of centrifugal driving device, centrifugal hammer produces displacement because of centnifugal force, drives gear cross dial by flexible element pulling splined sleeve and slides to high gear, realizes automatic speed changing, in addition, owing on the cross shift fork on the power input gear wheel two-stage ladder platform that reduces is gradually arranged vertically, not engagement between the cross shift fork on gear cross dial and the gear wheel is when riding, when low gear rises up into high gear, people by bike needn't delay pedals a pin, as long as the speed of riding reaches the speed of gearshift, just can realize self shifter, when the bicycle reduction of speed, because the two-stage ladder platform that reduces is gradually arranged on the cross shift fork on the power input gear wheel vertically, people by bike can continue to keep former gear to ride slow pedaling under the situation of a pin not.
Axletree of the present utility model is solid, and cost is not higher, can guarantee the intensity of axle; Reset magnet makes speed changer structure simple; In addition, when centrifugal hammer during because of centrifugal generation displacement, drive gear cross dial by flexible element pulling splined sleeve and slides to high gear, do not have radial component, it is higher to control driving efficiency; Have, because when riding, when low gear rises up into high gear, people by bike needn't delay pedals a pin, when reduction of speed travels, can keep former gear, so ride easily again.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is the reset scheme drawing that cuts open of cushion drive solid axle automatic speed-changing device for bicycle of magnetic force;
Fig. 2 is the reset cross-sectional schematic of cross shift fork on the power input gear wheel in the cushion drive solid axle automatic speed-changing device for bicycle of magnetic force.
The specific embodiment
Among Fig. 1, the magnetic force cushion drive solid axle automatic speed-changing device for bicycle that resets has solid axle for bicycle 1, be with automatic transmission with hydraulic torque converter 2 on the solid axle for bicycle, automatic transmission with hydraulic torque converter has case of transmission 3, the dynamic input gear wheel 4 of one end of housing, the other end of housing has speed change output hub 5, in the case of transmission, have by ratchet between power input gear wheel and speed change output hub, three shift transmissions 6 that planetary wheel etc. are formed, three shift transmissions have three speed thresholds vertically, there is the gear cross dial 7 that is enclosed within on the axle for bicycle at three speed threshold places, in the housing, be with splined sleeve 14 on the axle for bicycle, one end of splined sleeve links to each other with gear cross dial, on the power input gear wheel cross shift fork 41 that cooperates with gear cross dial is arranged, on the cross shift fork on the power input gear wheel two-stage ladder platform 42 that reduces is gradually arranged vertically, opposite side in housing has centrifugal driving device 8, planet gear speeder 9 is arranged between speed change output hub and the centrifugal driving device, planet gear speeder makes the rotating speed of centrifugal driving device be higher than the rotating speed of speed change output hub, centrifugal driving device has the runner 10 with the axle for bicycle coaxial line, be evenly equipped with centrifugal 11 that to radially slide on the runner, centrifugal links to each other by track adjusting wheel 12 usefulness flexible elements 15 with the other end of splined sleeve, reset magnet 16 is arranged respectively on splined sleeve and the housing, 17, the homopolarity of magnet is relative.
Above-mentioned flexible element can be steel wire, seizing wire, nylon ropes or silk thread etc.
Above-mentioned reset magnet is the circular ring magnet with the axle for bicycle coaxial line.
Claims (3)
1. magnetic force cushion drive solid axle automatic speed-changing device for bicycle that resets, axle for bicycle is arranged, be with automatic transmission with hydraulic torque converter on the axle for bicycle, automatic transmission with hydraulic torque converter has case of transmission, the dynamic input gear wheel of one end of housing, the other end of housing has the speed change output hub, in the case of transmission, have by ratchet between power input gear wheel and speed change output hub, three shift transmissions that planetary wheel etc. are formed, three shift transmissions have three speed thresholds vertically, there is the gear cross dial that is enclosed within on the axletree at three speed threshold places, on the power input gear wheel cross shift fork that cooperates with gear cross dial is arranged, opposite side in housing has centrifugal driving device, between speed change output hub and the centrifugal driving device planet gear speeder is arranged, centrifugal driving device has the runner with the axletree coaxial line, it is characterized in that: axle for bicycle is a solid axle, be evenly equipped with centrifugal that to radially slide on the runner of centrifugal driving device, in the housing, be with splined sleeve on the axletree, one end of splined sleeve links to each other with gear cross dial, the other end of splined sleeve links to each other with centrifugal with flexible element, on splined sleeve and the housing the relative reset magnet of homopolarity is arranged respectively, on the cross shift fork on the power input gear wheel two-stage ladder platform that reduces is gradually arranged vertically.
2. by the described magnetic force of the claim 1 cushion drive solid axle automatic speed-changing device for bicycle that resets, it is characterized in that: described flexible element is steel wire, seizing wire, nylon ropes or silk thread.
3. by claim 1 or the 2 described magnetic force cushion drive solid axle automatic speed-changing device for bicycle that resets, it is characterized in that: described reset magnet is the circular ring magnet with the axle for bicycle coaxial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209849 CN2526253Y (en) | 2002-01-23 | 2002-01-23 | Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02209849 CN2526253Y (en) | 2002-01-23 | 2002-01-23 | Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526253Y true CN2526253Y (en) | 2002-12-18 |
Family
ID=33690178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02209849 Expired - Fee Related CN2526253Y (en) | 2002-01-23 | 2002-01-23 | Automatic speed variator of bicycle with magnetic reset flexible transmission solid shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526253Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661364A (en) * | 2012-05-21 | 2012-09-12 | 邢绍东 | Speed changer with silicon magnet on electric vehicle |
| CN109798342A (en) * | 2018-10-27 | 2019-05-24 | 珠海磐磊智能科技有限公司 | Speed change gear |
-
2002
- 2002-01-23 CN CN 02209849 patent/CN2526253Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661364A (en) * | 2012-05-21 | 2012-09-12 | 邢绍东 | Speed changer with silicon magnet on electric vehicle |
| CN109798342A (en) * | 2018-10-27 | 2019-05-24 | 珠海磐磊智能科技有限公司 | Speed change gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |