CN106428405A - Bicycle driving middle shaft with no dead point - Google Patents
Bicycle driving middle shaft with no dead point Download PDFInfo
- Publication number
- CN106428405A CN106428405A CN201610896606.7A CN201610896606A CN106428405A CN 106428405 A CN106428405 A CN 106428405A CN 201610896606 A CN201610896606 A CN 201610896606A CN 106428405 A CN106428405 A CN 106428405A
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- CN
- China
- Prior art keywords
- gear
- crank
- axis
- driven gear
- driven
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M15/00—Transmissions characterised by use of crank shafts and coupling rods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a bicycle driving middle shaft with no dead point. The bicycle driving middle shaft comprises a driving device and a driven device. The driving device comprises a first crank, a second crank, a first pedal, a second pedal, a first middle shaft, a second middle shaft, a first gear, a second gear, an intermediate shaft, a first driven gear and a second driven gear. The driven device comprises a crankset and tapered teeth. The first pedal and the second pedal separately drive the first middle shaft and the second middle shaft to rotate through the first crank and the second crank. The rotating first middle shaft and the rotating second middle shaft separately drive the first driven gear and the second driven gear to rotate through the first gear and the second gear so as to drive the crankset or the tapered teeth to rotate, and meanwhile, since the first gear and the second gear are different in radius and rotating angular speed, the included angle of the first crank and the second crank is varying in the operation process, and the first crank and the second crank cannot be located at a forcing dead point position at the same time. The bicycle driving middle shaft has the characteristics that no forcing dead point exists, and transmission is stable.
Description
Technical field
The present invention relates to bicycle transmission technical field, be specifically related to a kind of bicycle and drive axis without dead point, be used for solving
The shortcoming that certainly existing bicycle drive exists dead point of having an effect.
Background technology
Bicycle is running vehicle important in people's daily life, and people often make when on and off duty and outing
Use bicycle.As the driver part of bicycle, bicycle drive is the requisite vitals of bicycle, existing
Bicycle driving device, pedal circumferentially moves.Due to self limitation of human body, can only top-down have an effect to pedal and trample
Plate, when one, two pedal operate in one, the top operate in bottom when, two pedals are simultaneously in dead point of having an effect and go out, Zhi Nengtong
The inertia crossing pedal crosses dead center region of having an effect, thus cannot closely trample continuously, reduces efficiency of riding.Although city
Oval chain wheel bicycle on field comparatively fast crosses, than conventional bicycle, dead center region of having an effect, but can produce because of chain
Shake and be easily caused the shortcoming that chain drops.
Content of the invention
It is an object of the invention to provide a kind of bicycle and drive axis without dead point, in order to solve of the prior art voluntarily
The shortcoming that car driving means exists dead point of having an effect.
For achieving the above object, the present invention provides a kind of bicycle to drive axis without dead point, and described bicycle drives without dead point
Dynamic axis includes：Driving means and slave unit, described driving means includes：First crank, to be rotatably installed in described first bent
First pedal of handle turning end, the second crank and the second pedal being rotatably installed in described second crank turning end, its feature
Being, described driving means also includes：Be fixedly connected on described first crank fix end the first axis, be fixedly connected on described
Second crank is fixed the second axis of end, is fixedly connected on the first tooth away from described first crank one end for described first axis
Wheel, be fixedly connected on described second axis away from described second crank one end the second gear, jackshaft, be fixed on described centre
One end of axle and with described first gear intermeshing first driven gear, be fixed on described jackshaft the other end and with institute
State intermeshing second driven gear of the second gear；Described slave unit includes being fixedly mounted on described first axis or
Chain wheel on two axis；Or, described slave unit includes the cone tooth being fixedly mounted on jackshaft one end；Described first crank and
The angle of described second crank is change, and described first crank and described any one crank of second crank turn to and ground
When face is vertical, another crank is not orthogonal to ground.
Preferably, described first gear, described second gear, described first driven gear and described second driven gear
All for being connected, by two spiral of Archimedes are symmetrical, the non-circular gear surrounding；Described first axis is fixedly connected on described first
In the limit of gear, described second axis is fixedly connected in the limit of described second gear, and the two ends of described jackshaft are respectively
It is fixedly connected in the limit of described first driven gear and described second driven gear；The maximum radius of described first gear with
The least radius of the second gear described in when the least radius of described first driven gear engages is with described second driven gear
Large radius engages.
Preferably, described first gear, described second gear, described first driven gear and described second driven gear
Size is all identical.
Preferably, the axis of described first axis and described second axis is on same straight line.
Preferably, described first axis, described second axis and jackshaft are installed in rotation on vehicle frame.
Preferably, described first gear and the first driven gear are in the same plane, the second gear and the second driven gear
In the same plane.
Preferably, described first gear, described second gear, described first driven gear and described second driven gear
It is metal gear.
The invention have the advantages that：The present invention utilizes the first pedal and the second pedal to pass through the first crank and second respectively
Crank handle turns the first axis and the second central axis, the first axis of rotation and the second axis pass through the first gear and second respectively
Gear has driven the first driven gear and the rotation of the second driven gear respectively, and then has driven chain wheel or the rotation of cone tooth,
Utilize the first gear and the radius of the second gear and differing of rotational angular velocity so that the first crank and the second crank exist simultaneously
Angle in operation process is change, will not simultaneously appear in dead-centre position of having an effect.The present invention has without having an effect dead point, transmission
Stable feature.
Brief description
Fig. 1 is that bicycle of the present invention drives the top view of axis without dead point.
Fig. 2 is that bicycle of the present invention drives the side view of axis without dead point.
Fig. 3 is that bicycle of the present invention drives the side view of axis without dead point.
Fig. 4 is inventive drive means top view.
Fig. 5 is the structure chart of the present invention the first gear.
Fig. 6 is that the embodiment of the present invention 2 bicycle drives the structure chart of axis without dead point.
Fig. 7 is that the embodiment of the present invention 2 bicycle drives the top view of axis without dead point.
Detailed description of the invention
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in Figure 1,2,3, 4, this bicycle drives axis to include without dead point：Driving means 100 and slave unit 200,
Driving means 100 includes：First pedal the 1st, the second pedal the 2nd, the first crank the 3rd, the second crank the 4th, the first axis the 5th, the second axis is the 6th,
First gear the 7th, the second gear the 8th, the first driven gear the 9th, the second driven gear 10 and jackshaft 11, slave unit 200 includes
Chain wheel 21.The present invention utilizes the first pedal 1 and the second pedal 2 to drive the first axis by the first crank 3 and the second crank 4 respectively
5 and second axis 6 rotate, the first axis 5 of rotation and the second axis 6 are carried respectively by the first gear 7 and the second gear 8 respectively
Move the rotation of the first driven gear 9 and the second driven gear 10, and then driven the rotation of chain wheel 21, utilize the first tooth simultaneously
Wheel 7 and the second radius of gear 8 and differing of rotational angular velocity so that the first crank 3 and the second crank 4 are in operation process
Angle be change, dead-centre position of having an effect will not be simultaneously appeared in.The present invention has without having an effect dead point, the spy of stable drive
Point.
The power switching device that this driving means 100 is bicycle, is converted into own rotation for human body is pedaled the power of stepping on
Power.Driving means 100 includes：First pedal the 1st, the second pedal the 2nd, the first crank the 3rd, the second crank the 4th, the first axis the 5th, the second axis
6th, the first gear the 7th, the second gear the 8th, the first driven gear the 9th, the second driven gear 10 and jackshaft 11.
First pedal 1 and the second pedal 2 are the bicycle pedal of routine, are rotatably installed in the first crank 3 and the respectively
The turning end of two cranks 4, user is by stepping on the first pedal 1 and the driving rotation of the second pedal 2, the first pedal 1 and second with pedal
The first crank 3 and the second crank 4 is driven to move in a circle with respective fixing end for the center of circle while pedal 2 own rotation.
First crank 3 and the second crank 4 are the bicycle crank of routine, are respectively used for driving the first axis 5 and second
The rotation of axis 6, in the present embodiment, it is stipulated that one end that the first crank 3 and the second crank 4 install pedal is turning end, first
Crank 3 and the second crank 4 are respectively fixedly connected with the first axis 5 and one end of the second axis 6 is fixing end.First crank 3 and
The mode that the fixing end of two cranks 4 can be threadably secured or back-up ring is fixing is separately fixed in the first axis 5 and second
One end of axle 6, can also adopt and be fixed in other ways.
In order to be able to the dead-centre position so that the first pedal 1 and the second pedal 2 are at the highest notch or have an effect place when different,
When arranging the first crank 3 and the second crank 4 angle, the first crank 3 and the second crank 4 is first made to be parallel to horizontal plane
When, the angle between the i.e. first crank 3 and the second crank 4 is α=180 ° so that the maximum radius of the first gear 7 with first from
The least radius engagement of moving gear 9, makes the least radius of the second gear 8 and the maximum radius of the second driven gear 10 nibble simultaneously
Close.When, in the first crank 3 and the second crank 4 rotation process, the linear velocity that the first gear 7 rotates with the second gear 8 is identical, but the
The diameter that the diameter that one gear 7 engages with the first driven gear 9 engages with the second driven gear 10 more than the second gear 8, so
The angular speed that when starting to rotate, the angular speed of the first gear 7 rotates less than the second gear 8, therefore the first crank 3 and the second crank 4
Between angle taper into from 180 degree.First gear 7 and the second gear 8 are rotated further afterwards, when turning to the first gear 7
During the diameter that the diameter engaging with the first driven gear 9 engages with the second driven gear 10 less than the second gear 8, now the first tooth
The angular speed that the angular speed of wheel 7 rotates more than the second gear 8, therefore the angle between the first crank 3 and the second crank 4 has gradually
Become big and gradually convergence 180 degree, finally the first crank 3 and the second crank 4 ought be parallel to again horizontal plane, the first crank 3 He simultaneously
Second crank 4 angle becomes again 180 degree, and the first crank 3 and the second crank 4 are parallel to again horizontal plane simultaneously.First gear 7 afterwards
Being rotated further with the second gear 8, the diameter engaging with the first driven gear 9 due to the first gear 7 is less than the second gear 8 and second
The diameter of driven gear 10 engagement, so the angular speed that the angular speed of the first gear 7 rotates more than the second gear 8, therefore first
Angle between crank 3 and the second crank 4 becomes larger from 180 degree, and the first gear 7 and the second gear 8 are rotated further afterwards, when
Turn to the diameter that the first gear 7 engages with the first driven gear 9 straight with what the second driven gear 10 engaged more than the second gear 8
During footpath, the angular speed of the first gear 7 is less than the angular speed of the second gear 8 rotation, the folder between the first crank 3 and the second crank 4
Angle tapers into convergence 180 degree gradually, and finally when the first crank 3 and the second crank 4 are parallel to again horizontal plane simultaneously, first is bent
Handle 3 and the second crank 4 angle become again 180 degree, and such design has been always ensured that the first crank 3 and the second crank 4 are any one
When individual crank is perpendicular to horizontal plane, another one crank is not 180 degree with the crank angle being perpendicular to horizontal plane, thus avoids
Two first cranks 3 and the second crank wantonly 4, both perpendicular to ground, are simultaneously in and have an effect on dead point.
First axis 5 and the second axis 6 are cylindrical metal rod, and the two ends of the first axis 5 and the second axis 6 are solid respectively
Surely the first crank 3 and the first gear 7 and the second crank 4 and the second gear 8 are connected.First axis 5 and the second axis 6 rotate to be installed
On vehicle frame, can be freely rotatable, the axis of the first axis 5 and the second axis 6 is on same straight line.
As it is shown in figure 5, the first gear 7 and the second gear 8 are, two spiral of Archimedes are symmetrical connects surround non-
Knucle-gear, the first gear 7 and the second gear 8 are formed by fluted disc and several gear teeth being arranged on fluted disc edge, and this fluted disc is
Article two, spiral of Archimedes is symmetrical connects the noncircular pad surrounding, and the first gear 7 is fixedly connected on the first axis 5 away from first
One end of crank 3, the second gear 8 is fixedly connected on the second axis 6 one end away from the second crank 4, the first gear 7 and the second tooth
Equivalently-sized and first gear 7 of wheel 8 is all identical with the gear teeth of the second gear 8 and teeth groove.First axis 5 is fixedly connected on first
In the limit of gear 7, the second axis 6 is fixedly connected in the limit of the second gear 8, and therefore the first gear 7 and the second gear 8 are all
There is a maximum radius and least radius.In the present embodiment, the first gear 7 and the second gear 8 are metal gear.
This jackshaft 11 is rotatably installed on cycle frame, jackshaft 11 and the first driven gear 9 and the second driven tooth
Wheel 10 together rotates, and the axis of jackshaft 11 is parallel to the axis of the first axis 5 and the second axis 6.Jackshaft 11 can pass through
Screw thread, welding or back-up ring are fixed in the limit of the first driven gear 9 and the second driven gear 10.
First driven gear 9 and the second driven gear 10 be fixed on the two ends of jackshaft 11 respectively with the first gear 7 and
Two gears 8 engage.Equally, the first driven gear 9 and the second driven gear 10 are the symmetrical connection of two spiral of Archimedes
The non-circular gear surrounding, the first driven gear the 9th, the second driven gear the 10th, the first gear 7 and the second gear 8 size is all identical
And first the gear teeth of driven gear the 9th, the second driven gear the 10th, the first gear 7 and the second gear 8 all identical with teeth groove.At this
In embodiment, the first driven gear 9 and the second driven gear 10 are metal gear.The two ends of jackshaft 11 are separately fixed at
In the limit of one driven gear 9 and the second driven gear 10, therefore the first driven gear 9 and the second driven gear 10 are too all
There is a maximum radius and least radius.When rotating, the first driven gear 9 and the second driven gear 10 are all with respective
Limit is that eccentric rotary is done in the center of circle.In order to ensure that jackshaft 11 two ends stress equalization, in the present embodiment, during installation when rotating
When must assure that the maximum radius of the first gear 7 engages with the least radius of the first driven gear 9, the smaller part of the second gear 8
Footpath is engaged with the maximum radius of the second driven gear 10.By spiral of Archimedes polar coordinates formula it is recognised that A Ji
The polar equation of Mead helix is：R=a θ, the distance of every arm of this helical is equal to 2 π a forever.And Archimedes
The pitch curve of helix non-circular gear is intercepted by initial point.According to the characteristic of spiral of Archimedes, the first gear 7 and
During one driven gear 9 engagement rotation, the radius one of the first gear 7 and the first driven gear 9 while uniform increase another
Individual in uniform reduction.The limit distance so making the first gear 7 and the first driven gear 9 is constant all the time, on the other hand makes it
The relatively uniform change of rotational angular velocity.In like manner, the limit distance of the second gear 8 and the second driven gear 10 is constant all the time,
Second gear 8 and the relatively uniform change of rotational angular velocity of the second driven gear 10, such setting ensures that jackshaft 11
Two ends stress equalization.
This slave unit 200 is chain wheel 21, and chain wheel 21 is fixedly mounted on the first axis 5 or the second axis 6, in this reality
Executing in example, chain wheel 21 is fixed on the first axis 5 and is positioned between the first crank 3 and the first gear 7.When driving means 100 starts
During operating, chain wheel 21 together rotates with the first gear 7.Chain wheel 21 is rotated by chain drive bicycle rear.Chain wheel 21 passes through
The mode such as can be connected by welding, spline or nut is fixing is fixed on the first axis 5.
Embodiment 2
Fig. 6 except the embodiment of the present invention 2 bicycle without dead point drive axis structural representation, for convenience of explanation,
Only illustrating part related to the present embodiment, details are as follows：
As shown in Figures 6 and 7, different from embodiment 1 being, the slave unit 200 in the present embodiment is cone tooth 22, this cone tooth
22 one end being fixedly mounted on jackshaft 11.In the present embodiment, bore tooth 22 to be fixedly mounted on jackshaft 11 to install first driven
That one end of gear 9, cone tooth 22 is positioned at the first driven gear 9 second driven gear 10 side dorsad, when jackshaft 11 rotates,
Cone tooth 22 together rotates with the first driven gear 9 and the second driven gear 10, and cone tooth 22 by engaging driving certainly with power transmission shaft 12
Driving rear wheel.
Although, the present invention is described in detail above to have used general explanation and specific embodiment, but at this
On the basis of invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (7)
1. bicycle drives an axis without dead point, and described bicycle drives axis to include without dead point：Driving means and driven dress
Putting, described driving means includes：First crank, the first pedal being rotatably installed in described first crank turning end, the second crank
And it is rotatably installed in the second pedal of described second crank turning end, it is characterised in that described driving means also includes：Fixing
It is connected to described first crank to fix the first axis of end, be fixedly connected on described second crank and fix the second axis of end, solid
Surely be connected to described first axis away from described first crank one end the first gear, be fixedly connected on described second axis away from
It second gear of described second crank one end, jackshaft, is fixed on one end of described jackshaft mutual with described first gear
It first driven gear of engagement, is fixed on the other end of described jackshaft intermeshing with described second gear second driven
Gear；Described slave unit includes being fixedly mounted on the chain wheel on described first axis or on the second axis；Or, described driven
Device includes the cone tooth being fixedly mounted on jackshaft one end；The angle of described first crank and described second crank is change,
And described first crank and described any one crank of second crank are when turning to perpendicular to the ground, another crank is not orthogonal to
Ground.
2. bicycle according to claim 1 drives axis without dead point, it is characterised in that described first gear, described the
Two gears, described first driven gear and described second driven gear are all for being enclosed by two spiral of Archimedes symmetrical connection
The non-circular gear becoming；Described first axis is fixedly connected in the limit of described first gear, and described second axis is fixing to be connected
In the limit of described second gear, the two ends of described jackshaft are respectively fixedly connected with at described first driven gear and described
In the limit of two driven gears；When shown first crank and described second crank are each parallel to horizontal plane, described first gear
The least radius and described second of maximum radius second gear described in when engaging with the least radius of described first driven gear
The maximum radius engagement of driven gear.
3. bicycle according to claim 1 and 2 drives axis without dead point, it is characterised in that described first gear, described
Second gear, described first driven gear and described second driven gear size are all identical.
4. bicycle according to claim 1 and 2 drives axis without dead point, it is characterised in that described first axis and institute
State the axis of the second axis on same straight line.
5. bicycle according to claim 1 drives axis without dead point, it is characterised in that described first axis, described the
Two axis and jackshaft are installed in rotation on vehicle frame.
6. bicycle according to claim 1 without dead point drive axis, it is characterised in that described first gear and first from
In the same plane, the second gear and the second driven gear are in the same plane for moving gear.
7. bicycle according to claim 1 drives axis without dead point, it is characterised in that described first gear, described the
Two gears, described first driven gear and described second driven gear are metal gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896606.7A CN106428405A (en) | 2016-10-13 | 2016-10-13 | Bicycle driving middle shaft with no dead point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610896606.7A CN106428405A (en) | 2016-10-13 | 2016-10-13 | Bicycle driving middle shaft with no dead point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106428405A true CN106428405A (en) | 2017-02-22 |
Family
ID=58173685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610896606.7A Pending CN106428405A (en) | 2016-10-13 | 2016-10-13 | Bicycle driving middle shaft with no dead point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106428405A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920796A (en) * | 2019-11-20 | 2020-03-27 | 宁波市鄞州乐可机电科技有限公司 | Bicycle with a wheel |
| WO2022083087A1 (en) * | 2020-10-19 | 2022-04-28 | 广东皇田环保科技有限公司 | Dual-disk driving device for bicycle |
| CN114475903A (en) * | 2022-02-24 | 2022-05-13 | 淮阴工学院 | Transmission mechanism and bicycle without dead points |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080607A (en) * | 1992-06-30 | 1994-01-12 | 丁志强 | Reciprocating man power driving mechanism |
| CN101037130A (en) * | 2005-10-21 | 2007-09-19 | 阿马多·萨卢纳·皮尼利亚 | Sistema de traccion sin punto muerto para vehiculos a pedales |
| CN105923100A (en) * | 2016-04-14 | 2016-09-07 | 黄铃华 | Upright riding bicycle transmission device |
| CN206087171U (en) * | 2016-10-13 | 2017-04-12 | 李晓成 | Bicycle does not have dead point drive axis |
-
2016
- 2016-10-13 CN CN201610896606.7A patent/CN106428405A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080607A (en) * | 1992-06-30 | 1994-01-12 | 丁志强 | Reciprocating man power driving mechanism |
| CN101037130A (en) * | 2005-10-21 | 2007-09-19 | 阿马多·萨卢纳·皮尼利亚 | Sistema de traccion sin punto muerto para vehiculos a pedales |
| CN105923100A (en) * | 2016-04-14 | 2016-09-07 | 黄铃华 | Upright riding bicycle transmission device |
| CN206087171U (en) * | 2016-10-13 | 2017-04-12 | 李晓成 | Bicycle does not have dead point drive axis |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920796A (en) * | 2019-11-20 | 2020-03-27 | 宁波市鄞州乐可机电科技有限公司 | Bicycle with a wheel |
| WO2022083087A1 (en) * | 2020-10-19 | 2022-04-28 | 广东皇田环保科技有限公司 | Dual-disk driving device for bicycle |
| CN114475903A (en) * | 2022-02-24 | 2022-05-13 | 淮阴工学院 | Transmission mechanism and bicycle without dead points |
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Application publication date: 20170222 |
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