CN100391784C - Automatic bicycle speed variator - Google Patents
Automatic bicycle speed variator Download PDFInfo
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- CN100391784C CN100391784C CNB2006100465432A CN200610046543A CN100391784C CN 100391784 C CN100391784 C CN 100391784C CN B2006100465432 A CNB2006100465432 A CN B2006100465432A CN 200610046543 A CN200610046543 A CN 200610046543A CN 100391784 C CN100391784 C CN 100391784C
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Abstract
The present invention relates to an automatic speed changer of a bicycle. The automatic speed changer is arranged on a shaft, one end of the automatic speed changer is provided with a power input sprocket wheel, a shell of a wheel hub is provided with a speed change output wheel hub, and a speed change device and a speed change controller are arranged in the shell of the wheel hub; the speed change device is provided with a first-stage, a second-stage and a third-stage planetary gear trains which are connected with one another and are in coaxial connection with an axle along an axial direction, an annular gear ring gear of the first-stage gear train is connected with the sprocket wheel, and the three planetary gear trains are respectively provided with speed change output ratchet wheels; the inner circumference of the shell of the wheel hub is respectively provided with three pawls matched with the three output ratchet wheels, wherein a first-stage pawl is the pawl which is frequently engaged, and a second-stage and a third-stage pawls are the lever pawls which are frequently disengaged; the speed change device is provided with a second-stage and a third-stage balancing discs for centrifugal blocks, the balancing discs for the centrifugal blocks are respectively hinged with the centrifugal blocks which are respectively connected with poke rods for axial pawls, and the poke rods for the pawls are respectively connected with the pawls. The middle speed ratio and the high speed ratio output ratchet wheels and the middle speed ratio and the high speed ratio pawls of the present invention are respectively controlled by centrifugal force generated by the centrifugal blocks with different weight, and the present invention has the advantages of flexible speed change and easy control of speed change.
Description
Technical field
The present invention relates to a kind of solid axle automatic speed-changing device for bicycle, the particularly a kind of transmission system of solid axle automatic speed-changing device for bicycle and the control setup of speed change.
Background technology
In the prior art, Chinese patent ZL 2,004 2 0070090.3 discloses a kind of solid axle automatic speed-changing device for bicycle, this automatic speed-changing device for bicycle has axletree, axletree is used to be installed in the position of bicycle rear axle, be with automatic transmission with hydraulic torque converter on the axletree, automatic transmission with hydraulic torque converter has housing, dynamic input sprocket on the axletree of one end of housing, the other end of housing has the speed change output hub, transmission system and speed-change control device are arranged in the housing, transmission system is a cover planetary gear train coaxial with axletree, the click driving device is arranged between planetary gear train and the wheel hub, have between planetary gear train and the power input sprocket because to the input position of planetary gear train different and produce low, in, a Senior Three speed stage; Speed-change control device has the centrifugal driving disk that is connected on the wheel hub, be uniformly distributed along the circumference on the centrifugal driving disk and be hinged with centrifugal of eight lever constructions, an arm of centrifugal is a moving arm, moving arm order vertically is connected with dial, flexible control is helped pull a cart and the wheel of the gear cross on three speed stages, when wheel hub drives centrifugal driving disk and rotates, centrifugal of pivotally attached lever construction produces longitudinal travel because of centnifugal force, stir dial vertically by moving arm, the pulling flexible control is helped pull a cart, drive gear cross wheel and move, realize the automatic speed changing of bicycle at three speed stage upper edge axles.
This solid axle automatic speed-changing device for bicycle has following deficiency:
1. variable speed control is to change the cross wheel by axial a series of drivings device to realize that at three axial speed stages its axial transmission resistance is bigger, causes variable speed control dumb;
2. transmission system has a planetary gear train, realize speed change by changing input position, low, in, on the Senior Three speed stage, gear cross wheel is the driver element of transmission, between the driver element of gear cross wheel and planetary gear train bigger binding force is arranged, during variable speed control, remove this binding force and could realize that displacement vertically is shifted, so when speed change, when people by bike wants estimating speed to reach speed change request, the slow pedal of pedaling, the transmission binding force of removing between gear cross wheel and the gear could be realized the automatic shift gear shift, causes the variable speed control difficulty.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose that a kind of variable speed control is flexible, variable speed control is easy to a kind of automatic speed-changing device for bicycle.
The present invention is achieved using the following method.
This automatic speed-changing device for bicycle is useful on and is installed in the locational axletree of bicycle rear axle, be with automatic transmission with hydraulic torque converter on the axletree, automatic transmission with hydraulic torque converter has hub shell, dynamic input sprocket on the axletree of the outer end of hub shell, hub shell is the speed change output hub, on the axletree in the hub shell transmission system and speed-change control device are arranged, transmission system has coaxial with axletree vertically one-level, secondary and three grades of three planetary gear trains that link to each other, the internally toothed annulus of three planetary gear trains, the modulus of satellite gear and center gear is identical respectively, the center gear of three planetary gear trains is installed on the axletree respectively, the pinion carrier of primary planet pinion system is the pinion carrier of secondary planetary gear system, the internally toothed annulus of secondary planetary gear system is the pinion carrier of third-level planetary train of gears, the internally toothed annulus of primary planet pinion system links to each other with the power input sprocket, it is the input end of transmission system, the excircle of the pinion carrier of primary planet pinion system, secondary planetary gear is that the excircle of internally toothed annulus and the excircle of third-level planetary train of gears internally toothed annulus have one-level respectively, secondary and three grades of three ratchets, be three mouths of transmission system, the inner periphery of hub shell has respectively and above-mentioned one-level, secondary and three grades of three one-levels that the mouth ratchet matches, secondary and three grades of ratchets, the shaft hole sleeve of ratchet is on the pawl axis on the hub shell inner periphery, the one-level ratchet is the constant-mesh ratchet, secondary ratchet and three grades of ratchets are often to throw off the lever ratchet, the axis hole of lever ratchet is a fulcrum, one end of lever ratchet is a pawl teeth, the other end of lever ratchet is a moving arm, axial poke hole is arranged on the moving arm, two, be connected with the retracing spring that pawl teeth and ratchet are thrown off on the moving arm of three grades of ratchets respectively, speed-change control device have with pawl axis on the hub shell inner periphery that link to each other with the centrifugal control panel axletree coaxial line, be with centrifugal balance disc of coaxial line of secondary and three grades of two activities on the centrifugal control panel, be hinged with centrifugal of two secondarys on its diameter two ends circumference on centrifugal balance disc of secondary, be hinged with two three grades centrifugal on its diameter two ends circumference on three grades of centrifugal balance discs, the quality that secondary is centrifugal is greater than three grades centrifugal quality, be connected with axial secondary ratchet poke rod and three grades of ratchet poke rods respectively on centrifugal and three grades centrifugal of the secondary, secondary ratchet poke rod and three grades of ratchet poke rods are inserted in respectively in the axial poke hole on secondary ratchet and the three grades of ratchet moving arms.
During use, the present invention is installed on the bicycle rear axle seat, the power input sprocket links to each other with the sprocket wheel of axis with chain, and hub shell links to each other with rim with spoke.
Because in three continuous planetary gear trains of transmission system, the pinion carrier of primary planet pinion system is the pinion carrier of secondary planetary gear system, the internally toothed annulus of secondary planetary gear system is the pinion carrier of third-level planetary train of gears, the internally toothed annulus of primary planet pinion system links to each other with the power input sprocket, it is the input end of transmission system, the excircle of the pinion carrier of primary planet pinion system, secondary planetary gear is that the excircle of internally toothed annulus and the excircle of third-level planetary train of gears internally toothed annulus have one-level respectively, secondary and three grades of three ratchets, be three mouths of transmission system, one-level, secondary and three grades of three mouths and input end have low respectively, in, a Senior Three speed ratio that increases progressively.
In the time of by bike, because of the one-level ratchet is the constant-mesh ratchet, secondary ratchet and three grades of ratchets are that normal off is opened the ingear ratchet, when cycling start, are easy to cycling start with low speed than from quiescence; When bicycle reaches certain speed, centrifugal elder generation of the secondary that quality is bigger throws away because of centnifugal force, produce radial displacement, the radial displacement that secondary is centrifugal is stirred the moving arm of secondary ratchet by axial secondary ratchet poke rod, make the secondary ratchet overcome the pressure of retracing spring and be meshed with the secondary ratchet, this moment, bicycle can be ridden with middle speed ratio; When bicycle reaches higher speed, less three grades centrifugal also can throw away because of centnifugal force quality, produce radial displacement, three grades centrifugal radial displacement is stirred the moving arm of three grades of ratchets by axial three grades of ratchet poke rods, make three grades of ratchets overcome the pressure of reduction torsion spring and be meshed with three grades of ratchets, this moment, bicycle can be with at a high speed than riding.
Transmission system of the present invention has the planetary gear train of three identical moduluses, the output ratchet that basic, normal, high three different speed ratios are arranged between transmission system and the wheel hub, low speed specific output ratchet and ratchet are the constant-mesh ratchets, the output ratchet of middle and high two speed ratios and ratchet are controlled by centrifugal centnifugal force that is produced of different quality, and speed change is flexible, variable speed control is easy.
Below in conjunction with accompanying drawing, the present invention is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic of this automatic speed-changing device for bicycle;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the B-B generalized section of Fig. 1;
Fig. 4 is the C-C generalized section of Fig. 1;
Fig. 5 is that the master of centrifugal driving disk looks scheme drawing;
Fig. 6 is the D-D generalized section of Fig. 5;
Fig. 7 is the E-E generalized section of Fig. 5.
Fig. 8 is the partial cutaway schematic of two stage speed change control;
Fig. 9 is the partial cutaway schematic of three-step gear shift control;
Figure 10 is the scheme drawing of torsion spring position;
The specific embodiment
Among Fig. 1～Figure 10, this automatic speed-changing device for bicycle is useful on and is installed in the locational axletree 1 of bicycle rear axle, be with automatic transmission with hydraulic torque converter on the axletree, automatic transmission with hydraulic torque converter has hub shell 2, dynamic input sprocket 3 on the axletree of the outer end of hub shell, hub shell is the speed change output hub, on the axletree in the hub shell transmission system and speed-change control device are arranged, transmission system has coaxial with axletree vertically one-level, secondary and three grades of three planetary gear trains that link to each other 4,5,6, the internally toothed annulus of three planetary gear trains, satellite gear is identical respectively with the center gear modulus, the center gear of three planetary gear trains is installed on the axletree respectively, the pinion carrier 7 of primary planet pinion system is the pinion carrier of secondary planetary gear system, the internally toothed annulus 8 of secondary planetary gear system is the pinion carrier of third-level planetary train of gears, the internally toothed annulus 9 of primary planet pinion system links to each other with the power input sprocket, it is the input end of transmission system, the excircle of the pinion carrier of primary planet pinion system, secondary planetary gear is that the excircle of internally toothed annulus and the excircle of third-level planetary train of gears internally toothed annulus 10 have one-level respectively, secondary and three grades of three ratchets, be three mouths of transmission system, the inner periphery of hub shell have respectively with above-mentioned transmission system on one-level, secondary and three grades of one-levels that ratchet matches, secondary and three grades of ratchets 11,12,13, the shaft hole sleeve of ratchet is on the pawl axis on the hub shell inner periphery 14, the one-level ratchet is the constant-mesh ratchet, secondary ratchet and three grades of ratchets are often to throw off the lever ratchet, the axis hole 15 of lever ratchet is a fulcrum, one end of lever ratchet is a pawl teeth 16, the other end of lever ratchet is a moving arm 17, axial poke hole 18 is arranged on the moving arm, be connected with the reduction torsion spring 19 that ratchet and ratchet are thrown off on the moving arm respectively, speed-change control device have with pawl axis on the hub shell inner periphery that link to each other with the centrifugal control panel 20 axletree coaxial line, be with centrifugal balance disc 21 of coaxial line of secondary and three grades of two activities on the centrifugal control panel, 22, be hinged with centrifugal 23 of two secondary on its diameter two ends circumference on centrifugal balance disc of secondary, be hinged with two three grades centrifugal 24 on its diameter two ends circumference on three grades of centrifugal balance discs, the quality that secondary is centrifugal is greater than three grades centrifugal quality, be connected with axial secondary ratchet poke rod 25 and three grades of ratchet poke rods 26 respectively on centrifugal and three grades centrifugal of the secondary, secondary ratchet poke rod and three grades of ratchet poke rods are inserted in respectively in the axial poke hole on secondary ratchet and the three grades of ratchet moving arms.
One end of hub shell has the outside thread 27 that any type of general brake drum can be installed.
Claims (1)
1. automatic speed-changing device for bicycle, be useful on and be installed in the locational axletree of bicycle rear axle, be with automatic transmission with hydraulic torque converter on the axletree, automatic transmission with hydraulic torque converter has hub shell, dynamic input sprocket on the axletree of the outer end of hub shell, hub shell is the speed change output hub, on the axletree in the hub shell transmission system and speed-change control device are arranged, it is characterized in that: transmission system has coaxial with axletree vertically one-level, secondary and three grades of three planetary gear trains that link to each other, the internally toothed annulus of three planetary gear trains, the modulus of satellite gear and center gear is identical respectively, the center gear of three planetary gear trains is installed on the axletree respectively, the pinion carrier of primary planet pinion system is the pinion carrier of secondary planetary gear system, the internally toothed annulus of secondary planetary gear system is the pinion carrier of third-level planetary train of gears, the internally toothed annulus of primary planet pinion system links to each other with the power input sprocket, it is the input end of transmission system, the excircle of the pinion carrier of primary planet pinion system, secondary planetary gear is that the excircle of internally toothed annulus and the excircle of third-level planetary train of gears internally toothed annulus have one-level respectively, secondary and three grades of three ratchets, be three mouths of transmission system, the inner periphery of hub shell has respectively and above-mentioned one-level, secondary and three grades of three one-levels that the mouth ratchet matches, secondary and three grades of ratchets, the shaft hole sleeve of ratchet is on the pawl axis on the hub shell inner periphery, the one-level ratchet is the constant-mesh ratchet, secondary ratchet and three grades of ratchets are often to throw off the lever ratchet, the axis hole of lever ratchet is a fulcrum, one end of lever ratchet is a pawl teeth, the other end of lever ratchet is a moving arm, axial poke hole is arranged on the moving arm, two, be connected with the retracing spring that pawl teeth and ratchet are thrown off on the moving arm of three grades of ratchets respectively, speed-change control device have with pawl axis on the hub shell inner periphery that link to each other with the centrifugal control panel axletree coaxial line, be with centrifugal balance disc of coaxial line of secondary and three grades of two activities on the centrifugal control panel, be hinged with centrifugal of two secondarys on its diameter two ends circumference on centrifugal balance disc of secondary, be hinged with two three grades centrifugal on its diameter two ends circumference on three grades of centrifugal balance discs, the quality that secondary is centrifugal is greater than three grades centrifugal quality, be connected with axial secondary ratchet poke rod and three grades of ratchet poke rods respectively on centrifugal and three grades centrifugal of the secondary, secondary ratchet poke rod and three grades of ratchet poke rods are inserted in respectively in the axial poke hole on secondary ratchet and the three grades of ratchet moving arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465432A CN100391784C (en) | 2006-05-11 | 2006-05-11 | Automatic bicycle speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100465432A CN100391784C (en) | 2006-05-11 | 2006-05-11 | Automatic bicycle speed variator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1847083A CN1847083A (en) | 2006-10-18 |
| CN100391784C true CN100391784C (en) | 2008-06-04 |
Family
ID=37076889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100465432A Expired - Fee Related CN100391784C (en) | 2006-05-11 | 2006-05-11 | Automatic bicycle speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100391784C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397048A (en) * | 2007-09-29 | 2009-04-01 | 程辉 | Fully-automatic speed-changer of bicycle |
| CN103832536A (en) * | 2012-11-23 | 2014-06-04 | 王平 | Automatic transmission of bicycle |
| CN106494562B (en) * | 2016-08-31 | 2022-02-01 | 张家港川梭车业有限公司 | Full-automatic three-level variable speed driving device |
| CN106428403B (en) * | 2016-08-31 | 2021-11-02 | 张家港川梭车业有限公司 | Stable tertiary variable speed drive arrangement changes speed |
| CN106763570B (en) * | 2016-12-21 | 2023-07-14 | 张家港川梭车业有限公司 | Single-wheel direct-drive multi-gear full-automatic transmission with fixed central wheel |
| CN108506432B (en) * | 2017-02-27 | 2024-04-09 | 李激初 | Transmission mechanism for single-arm frame and hub assembly applied to transmission mechanism |
| CN109018178A (en) * | 2017-06-11 | 2018-12-18 | 枣庄宝武机电科技开发有限公司 | Bicycle three keeps off automatic internal speed variator of real |
| CN109018181A (en) * | 2017-06-12 | 2018-12-18 | 枣庄宝武机电科技开发有限公司 | Bicycle magnet control formula three keeps off internal speed changing device |
| CN107588161B (en) * | 2017-10-23 | 2024-03-29 | 张家港川梭车业有限公司 | Gear ring input double-wheel drive full-automatic multi-gear transmission |
| CN108974242B (en) * | 2018-09-12 | 2024-02-13 | 昆山唐泽新能源科技有限公司 | Variable speed hub centrifugal clutch assembly and automatic internal three-speed hub |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513726A (en) * | 1967-08-12 | 1970-05-26 | Shimano Industrial Co | Automatic three-stage speed change bicycle hub |
| JP2000230609A (en) * | 1999-02-10 | 2000-08-22 | Minoru Nakagawa | Self-operated automatic continuously variable transmission hub with four set planetary gear coupled structure |
| CN2539689Y (en) * | 2002-01-23 | 2003-03-12 | 铁岭天星机械有限公司 | Magnetic force resetting solid shaft bicycle autoamtic speed variator |
| US20050197230A1 (en) * | 2004-03-06 | 2005-09-08 | Sram Deutschland Gmbh | Planetary gear mechanism for a bicycle hub |
| CN2739087Y (en) * | 2004-08-03 | 2005-11-09 | 陈贞华 | Automatic speed variator for solid axle bicycle |
| CN1712758A (en) * | 2004-06-23 | 2005-12-28 | 欧阳宝武 | Automatic variator of flywheel assembly with up and down double teeth ratchets |
-
2006
- 2006-05-11 CN CNB2006100465432A patent/CN100391784C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3513726A (en) * | 1967-08-12 | 1970-05-26 | Shimano Industrial Co | Automatic three-stage speed change bicycle hub |
| JP2000230609A (en) * | 1999-02-10 | 2000-08-22 | Minoru Nakagawa | Self-operated automatic continuously variable transmission hub with four set planetary gear coupled structure |
| CN2539689Y (en) * | 2002-01-23 | 2003-03-12 | 铁岭天星机械有限公司 | Magnetic force resetting solid shaft bicycle autoamtic speed variator |
| US20050197230A1 (en) * | 2004-03-06 | 2005-09-08 | Sram Deutschland Gmbh | Planetary gear mechanism for a bicycle hub |
| CN1712758A (en) * | 2004-06-23 | 2005-12-28 | 欧阳宝武 | Automatic variator of flywheel assembly with up and down double teeth ratchets |
| CN2739087Y (en) * | 2004-08-03 | 2005-11-09 | 陈贞华 | Automatic speed variator for solid axle bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1847083A (en) | 2006-10-18 |
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Granted publication date: 20080604 Termination date: 20120511 |