CN109941392A - A kind of no chain-type bicycle with stepless speed change - Google Patents
A kind of no chain-type bicycle with stepless speed change Download PDFInfo
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- CN109941392A CN109941392A CN201910129669.3A CN201910129669A CN109941392A CN 109941392 A CN109941392 A CN 109941392A CN 201910129669 A CN201910129669 A CN 201910129669A CN 109941392 A CN109941392 A CN 109941392A
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- truncated cone
- friction pulley
- shaped friction
- bicycle
- stepless speed
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Abstract
The present invention relates to a kind of structure-improved of bicycle, specially a kind of no chain-type bicycle with stepless speed change.Removable and transmitting rotation the first axle sleeve of rear-wheel is nested with by spline shaft structure on rear axle, overhanging end fixes the first truncated cone-shaped friction pulley；Through bevel-gear sett transmission connection and the consistent transmission shaft of bicycle front-rear direction on pedal spindle, the second truncated cone-shaped friction pulley is connected with transmitting rotating manner rear end by spline shaft structure with removable, with the first truncated cone-shaped friction pulley partly or entirely to contact friction area transmitting power, and transmission shaft is fixed on vehicle frame by the second axle sleeve that can mutually rotate by assembly ring, stepless speed regulation knob is configured on handlebar, rotating disc, large and small two end faces for the first or second truncated cone-shaped friction pulley that every group of speed regulation folder respectively clamps are connected through speed regulation bracing wire.Stepless speed regulation is carried out using truncated cone-shaped friction pulley laminating points linear velocity is changed, drive efficiency is improved, increases adjustable extent and continuity, improve experience sense of riding, enhance enjoyment of riding.
Description
Technical field
The present invention relates to a kind of structure-improveds of bicycle, are a kind of no chain-type bicycle with stepless speed change specifically
Structure.
Background technique
Mainly by chain drive, this common bicycle transmission is by foot pedal, chain for bicycle transmission design at present
It is formed with sprocket wheel.Wherein chain will appear the abrasion of chain during use, get rusty aging the problem of, these problems cause
It falls off in chain easy accessary sprocket wheel and is even broken, bicycle is caused not ride normally.
For the speed change problem of bicycle, existing multi-speed bicycle be using the multiple size sprocket wheel assemblys in front and back with
Step speed change mechanism composed by gearshift device.The step speed change mechanism needs the rotation fork shift of level-one level-one in adjustment speed
Device is unable to reach any adjusting of the user to riding speed size to reach the speed stage of a certain fixation.And this has grade
Speed changing structure is cumbersome, at high cost, high failure rate.
Therefore, comparing needs currently on the market can provide a kind of without chain, reduce failure, and have simple variable-speed function
Bicycle comes out.
Summary of the invention
Problems solved by the invention is: change the mode of the bicycle existing transmission for having chain-type and step speed change, it is real
A kind of bicycle structure of existing no chain-type stepless gearing method.
The purpose of the present invention is realized by the following technical scheme:
A kind of no chain-type bicycle with stepless speed change, it is characterised in that:
Removable and transmitting rotation the first axle sleeve of rear-wheel, the first axle sleeve are nested with by spline shaft structure on bicycle rear axle
The fixed small end of overhanging end the first truncated cone-shaped friction pulley outwardly；
Through bevel-gear sett transmission connection and the consistent transmission shaft of bicycle front-rear direction on pedal spindle, transmission shaft is by spending
Key axle construction connects the second truncated cone-shaped friction pulley of small end backwards with transmitting rotating manner rear end with removable, with the first truncated cone-shaped
Friction pulley is partly or entirely to contact friction area transmitting power, and transmission shaft is blocked by the second axle sleeve that can mutually rotate by assembly
Hoop is fixed on vehicle frame, is fixed on vehicle frame in the second axle sleeve close to the second truncated cone-shaped friction pulley end by enhancing clip；
Two friction wheel axles of the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley are mutually perpendicular in a water
Plane is fixed on the rotating disc that can be horizontally rotated on vehicle frame, the disk of rotating disc in the top configured in parallel central axis of this horizontal plane
Two groups of speed regulation folders being made of respectively two driving levers are stretched out downwards, and every group of speed regulation folder respectively clamps the first truncated cone-shaped friction
Large and small two rotary table end faces of wheel or the second truncated cone-shaped friction pulley, and the vertical line of two groups of two driving lever lines is mutually perpendicular to；
Stepless speed regulation knob is configured on handlebar, connects rotating disc through speed regulation bracing wire.
Using the technical program, foot-treadle, through bevel-gear sett transmission connection and bicycle front and back on pedal spindle
To consistent transmission shaft, transmission shaft transmits power backward, and driving bicycle moves ahead.
First truncated cone-shaped friction pulley can make inside and outside direction along bicycle rear axle direction and move；Second truncated cone-shaped friction pulley can edge
The axial movement of the consistent transmission shaft of bicycle front-rear direction；First truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley are with part
Or all contact friction area transmitting power, with the difference of contact surface, contact position, causes to drive since rotary table is inclined-plane
The radius of rotation is different, generates different transmission speeds, reaches speed change purpose.
The big end in contact of the small end of second truncated cone-shaped friction pulley and the first truncated cone-shaped friction pulley, output speed is minimum, and the
The toe contact of the big end of two truncated cone-shaped friction pulleys and the first truncated cone-shaped friction pulley can generate the high speed of the first truncated cone-shaped friction pulley
Rotation drives rear axle, bicycle rear high-speed rotation.
Stepless speed regulation knob is configured on handlebar, rotation speed regulation knob connects turn disc through speed regulation bracing wire, rotating disc
Disk extends downwardly two groups of speed regulation folders being made of respectively two driving levers, and every group of speed regulation folder respectively clamps the first truncated cone-shaped and rub
The large and small two rotary table end faces for wiping wheel or the second truncated cone-shaped friction pulley, force the first truncated cone-shaped friction pulley and the second truncated cone-shaped to rub
It wipes wheel and changes contact position, reach speed regulation purpose.
Transmission shaft is fixed on vehicle frame by the second axle sleeve that can mutually rotate by assembly ring, and the second axle sleeve of the invention makes
The transmission shaft that must be rotated can be fixed on vehicle frame, constitute a complete technical solution.
It needs to the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley change contact position and stirs power, it is corresponding to pass
Also there is corresponding reaction force in the end of moving axis, and the present invention is by enhancing clip in the second axle sleeve close to the second truncated cone-shaped friction pulley end
It is fixed on vehicle frame, provides fixed constraint power, so that the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley change contact
Position becomes feasible and reliable.
Further, the rotary table inclined-plane and baseplane angle of the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley are
45 degree.
Further, the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley materials Corundum Ceramics.
Further, the transmission shaft is by an intermediate inner shaft/outer shaft, in two, both ends outer shaft/inner shaft composition or one end
Axis one end outer shaft, is mutually nested in a manner of splined shaft and is connected and composed.
Further, spring is respectively configured on the first axle sleeve and transmission shaft, so that the first truncated cone-shaped friction pulley and the second circle
Two round table surfaces of platform shape friction pulley holding are bonded to each other the preload thrust in direction.
Further, the first truncated cone-shaped friction pulley or the are clamped in the driving lever end configuration bearing for forming the speed regulation folder
Large and small two rotary table end faces of two truncated cone-shaped friction pulleys.
Further, transmission shaft is through Bearing configuration in the second axle sleeve.
The beneficial effects of the present invention are:
1) original in such a way that numerous size sprocket wheel assemblys are come to bicycle progress step speed regulation, structure is changed
Complexity is easy to be out of order；
2) form for changing laminating points linear velocity using the truncated cone-shaped friction pulley fitting of slip carries out stepless speed regulation,
The drive efficiency for substantially increasing bicycle increases the continuity of the adjustable range of speed and adjustment speed, improves and ride
Capable experience sense enhances the enjoyment ridden；
3) make that the transmission of bicycle is more reliable, speed change is humanized, be more in line with the demand of bicycle shift.
4) using speed regulation bracing wire single power, so that the first truncated cone-shaped friction pulley on rear-wheel can be along bicycle rear axle direction
It is mobile to make inside and outside direction；Second truncated cone-shaped friction pulley along the consistent transmission shaft of bicycle front-rear direction axial movement, to change
The site of engagement for having become truncated cone-shaped friction pulley has carried out step-less adjustment to transmission ratio, realizes that the variable speed of bicycle, design are skilful
It is wonderful.
5) transmission shaft is fixed on vehicle frame by the second axle sleeve that can mutually rotate by assembly ring, and the present invention is made to constitute one
Complete technical solution.It is fixed on vehicle frame, is provided close to the second truncated cone-shaped friction pulley end in the second axle sleeve by enhancing clip
Fixed constraint power, so that the first truncated cone-shaped friction pulley and the second truncated cone-shaped friction pulley change the technical solution of the present invention of contact position
As feasible and reliable.
Detailed description of the invention
Fig. 1 is no chain-type bicycle with stepless speed change outline drawing of the invention.
Fig. 2 is no chain-type stepless variable speed bicycle transmission system outline drawing of the invention.
Fig. 3 is the enlarged drawing that toggle mechanism position is adjusted the speed in Fig. 2.
Fig. 4 is that transmission system of the invention looks up outline drawing.
Fig. 5 is one embodiment of the present invention, shows the configuration diagram of bicycle transmission axis and matched part, wherein
Assembly ring and vehicle frame are shown in figure has rotated 90 degree.
Fig. 6 is bicycle speed-regulating driving lever outline drawing of the invention.
Fig. 7 is bicycle of the invention without chain stepless time adjustment schematic diagram.
Fig. 8 extreme fastest ratio position view when being bicycle shift of the invention.
Fig. 9 extreme maximum transmission ratio position view when being bicycle shift of the invention.
In figure, 3. pedals, 6. speed regulation bracing wires, 8. first bevel gears, 9. second bevel gears, 10a. rotating disc, 10b. driving lever,
10c. central axis, 10d. bearing, 11. transmission shafts, 14. handlebars, 15. stepless speed regulation knobs, 16 be the first axle sleeve, and 17 be the second axis
Set, 18 be vehicle frame, and 19 be assembly ring, and 20 be rear axle, and 21 be spring, and 22 be enhancing clip.
Specific embodiment
A kind of no chain-type bicycle with stepless speed change,
Removable and transmitting rotation the first axle sleeve of rear-wheel 16, the first axle sleeve 16 are nested with by spline shaft structure on rear axle 20
The fixed small end of overhanging end the first truncated cone-shaped friction pulley 8 outwardly；
Through bevel-gear sett transmission connection and the consistent transmission shaft 11 of bicycle front-rear direction, transmission shaft 11 on pedal spindle
The the second truncated cone-shaped friction pulley 9 of small end backwards is connected with transmitting rotating manner rear end with removable by spline shaft structure, with first
Truncated cone-shaped friction pulley 8 is partly or entirely to contact friction area transmitting power, and transmission shaft 11 is by the second axis that can mutually rotate
Set 17 is fixed on vehicle frame 18 by assembly ring 19, by enhancing clip 22 in the second axle sleeve 17 close to the second truncated cone-shaped friction pulley 9
End is fixed on vehicle frame 18；
Two friction wheel axles of the first truncated cone-shaped friction pulley 8 and the second truncated cone-shaped friction pulley 9 are mutually perpendicular in one
Horizontal plane is fixed on the rotating disc 10a that can be horizontally rotated on vehicle frame 18 in the top configured in parallel central axis 10c of this horizontal plane,
The disk of rotating disc 10a extends downwardly two groups of speed regulation folders being made of respectively two driving lever 10b, and every group of speed regulation folder respectively presss from both sides
Hold large and small two rotary table end faces of the first truncated cone-shaped friction pulley 8 or the second truncated cone-shaped friction pulley 9, and two groups of two driving lever 10b
The vertical line of line is mutually perpendicular to；
Stepless speed regulation knob 15 is configured on handlebar 14, connects rotating disc 10a through speed regulation bracing wire 6.
The rotary table inclined-plane and baseplane angle of the first truncated cone-shaped friction pulley 8 and the second truncated cone-shaped friction pulley 9 are 45 degree.
Thus the guarantee of 45 degree of angles allows the first truncated cone-shaped friction pulley 8 and the axis of the second truncated cone-shaped friction pulley 9 mutually to hang down
Directly.
The first truncated cone-shaped friction pulley 8 and the second truncated cone-shaped friction pulley 9 materials Corundum Ceramics.This is a kind of both wear-resisting, long
There is the material of certain frictional force in longevity again.
The transmission shaft 11 is by an intermediate inner shaft/outer shaft, two, both ends outer shaft/inner shaft composition or one end inner shaft one
Outer shaft is held, is mutually nested with and is connected and composed in a manner of splined shaft.Transmission shaft 11 spends strong structure can be there are many form, can be according to processing
The condition of side selects to use, advantageous purpose easy to process, work efficiency is high, material saves.
Spring 21 is respectively configured on the first axle sleeve 16 and transmission shaft 11, so that the first truncated cone-shaped friction pulley 8 and the second circle
Two round table surfaces of the holding of platform shape friction pulley 9 are bonded to each other the preload thrust in direction.Optimize the technical program, so that fitting, engagement are more
Docile, speed change, transition are more stable, and the people that rides is more comfortable.
The first truncated cone-shaped friction pulley 8 or the is clamped in the end the driving lever 10b configuration bearing 10d for forming the speed regulation folder
Large and small two rotary table end faces of two truncated cone-shaped friction pulleys 9.Make components more wear resistant after addition bearing, the service life is longer, behaviour
Work, speed change are lighter.
Transmission shaft 11 is through Bearing configuration in the second axle sleeve 17.Transmission shaft 11 is the component constantly rotated, and configuration exists
More wear resistant in bearing, long service life, efficiency of riding improve.
It is the preferred embodiment of the present invention above, those of ordinary skill in the art can also carry out various changes on this basis
It changes or improves, under the premise of not departing from the present invention total design, these transformation or improve all should belong to that the present invention claims guarantors
Within the scope of shield.
Claims (7)
1. a kind of no chain-type bicycle with stepless speed change, it is characterised in that:
It is nested on bicycle rear axle (20) by spline shaft structure and moves and transmit the first axle sleeve of rear-wheel (16) rotated, first
The the first truncated cone-shaped friction pulley (8) of the fixed small end of the overhanging end of axle sleeve (16) outwardly；
Through bevel-gear sett transmission connection and the consistent transmission shaft of bicycle front-rear direction (11), transmission shaft (11) on pedal spindle
The the second truncated cone-shaped friction pulley (9) of small end backwards is connected with removable and transmitting rotating manner rear end by spline shaft structure, with the
One truncated cone-shaped friction pulley (8) is partly or entirely to contact friction area transmitting power, and transmission shaft (11) is by can mutually rotate
Second axle sleeve (17) is fixed on vehicle frame (18) by assembly ring (19), by enhancing clip (22) in the second axle sleeve (17) close to the
Two truncated cone-shaped friction pulleys (9) end is fixed on vehicle frame (18)；
Two friction wheel axles of the first truncated cone-shaped friction pulley (8) and the second truncated cone-shaped friction pulley (9) are mutually perpendicular in one
Horizontal plane is fixed on the rotating disc that can be horizontally rotated on vehicle frame (18) in top configured in parallel central axis (10c) of this horizontal plane
(10a), the disk of rotating disc (10a) extend downwardly two groups of speed regulation folders being made of respectively two driving levers (10b), every group of speed regulation
Folder respectively clamps large and small two rotary table end faces of the first truncated cone-shaped friction pulley (8) or the second truncated cone-shaped friction pulley (9), and two
The vertical line of two driving lever (10b) lines of group is mutually perpendicular to；
Stepless speed regulation knob (15) are configured on handlebar (14), through speed regulation bracing wire (6) connection rotating disc (10a).
2. bicycle with stepless speed change according to claim 1, it is characterised in that the first truncated cone-shaped friction pulley (8) and second
The rotary table inclined-plane and baseplane angle of truncated cone-shaped friction pulley (9) are 45 degree.
3. bicycle with stepless speed change according to claim 1 or claim 2, it is characterised in that the first truncated cone-shaped friction pulley (8) and
Second truncated cone-shaped friction pulley (9) materials Corundum Ceramics.
4. bicycle with stepless speed change according to claim 1, it is characterised in that the transmission shaft (11) by an intermediate inner shaft/
Outer shaft, two, both ends outer shaft/inner shaft composition or one end inner shaft one end outer shaft, are mutually nested in a manner of splined shaft and are connected and composed.
5. bicycle with stepless speed change according to claim 1, it is characterised in that on the first axle sleeve (16) and transmission shaft (11)
Spring (21) are respectively configured, so that the first truncated cone-shaped friction pulley (8) and the second truncated cone-shaped friction pulley (9) keep two round table surfaces mutual
It is bonded the preload thrust in direction.
6. bicycle with stepless speed change according to claim 1, it is characterised in that in the driving lever (10b) for forming the speed regulation folder
End configuration bearing (10d) is clamped in large and small two circles of the first truncated cone-shaped friction pulley (8) or the second truncated cone-shaped friction pulley (9)
End face.
7. bicycle with stepless speed change according to claim 1, it is characterised in that transmission shaft (11) is through Bearing configuration in the second axis
It covers in (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129669.3A CN109941392B (en) | 2019-02-21 | 2019-02-21 | Chainless stepless speed changing bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910129669.3A CN109941392B (en) | 2019-02-21 | 2019-02-21 | Chainless stepless speed changing bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109941392A true CN109941392A (en) | 2019-06-28 |
| CN109941392B CN109941392B (en) | 2020-06-02 |
Family
ID=67006893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910129669.3A Active CN109941392B (en) | 2019-02-21 | 2019-02-21 | Chainless stepless speed changing bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109941392B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678111A (en) * | 2021-01-07 | 2021-04-20 | 黄秋荣 | Chainless bicycle transmission system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208539Y (en) * | 1994-09-09 | 1995-09-27 | 谢恩如 | Stepless speed-change device for bicycle |
| US6102148A (en) * | 1998-10-21 | 2000-08-15 | Chien; Hsi-Hai | Electrically powered bicycle driving mechanism |
| CN2491327Y (en) * | 2001-07-05 | 2002-05-15 | 刘秦勤 | Stageless speed variator of bicycle |
| CN201914399U (en) * | 2010-08-09 | 2011-08-03 | 柴明珠 | Box-type stepless transmission of bicycle |
| US20120118091A1 (en) * | 2010-10-28 | 2012-05-17 | Suzuki Motor Corporation | Transmission of motorcycle |
-
2019
- 2019-02-21 CN CN201910129669.3A patent/CN109941392B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2208539Y (en) * | 1994-09-09 | 1995-09-27 | 谢恩如 | Stepless speed-change device for bicycle |
| US6102148A (en) * | 1998-10-21 | 2000-08-15 | Chien; Hsi-Hai | Electrically powered bicycle driving mechanism |
| CN2491327Y (en) * | 2001-07-05 | 2002-05-15 | 刘秦勤 | Stageless speed variator of bicycle |
| CN201914399U (en) * | 2010-08-09 | 2011-08-03 | 柴明珠 | Box-type stepless transmission of bicycle |
| US20120118091A1 (en) * | 2010-10-28 | 2012-05-17 | Suzuki Motor Corporation | Transmission of motorcycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112678111A (en) * | 2021-01-07 | 2021-04-20 | 黄秋荣 | Chainless bicycle transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109941392B (en) | 2020-06-02 |
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