CN116279961B - A gear continuously variable transmission system with dual transmission structure - Google Patents
A gear continuously variable transmission system with dual transmission structure Download PDFInfo
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- CN116279961B CN116279961B CN202310257509.3A CN202310257509A CN116279961B CN 116279961 B CN116279961 B CN 116279961B CN 202310257509 A CN202310257509 A CN 202310257509A CN 116279961 B CN116279961 B CN 116279961B
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- gear
- speed regulating
- transmission
- assembly
- rocker arm
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 230000009977 dual effect Effects 0.000 title claims abstract 9
- 230000001105 regulatory effect Effects 0.000 claims abstract description 68
- 230000008859 change Effects 0.000 claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 description 5
- 125000004122 cyclic group Chemical group 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
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- 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
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/10—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with bevel gear wheels
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- 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
-
- 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
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/06—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with spur gear wheels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Transmission Devices (AREA)
Abstract
本发明公开了一种具有双传动结构的齿轮无级变速系统，应用于自行车，包括动力输入组件、调速组件、传动组件、离合组件和动力输出组件，其中：传动组件有两套，两套传动组件同步运动，两套传动组件分别用于连接动力输入组件与离合组件之间的动力传递，调速组件用于改变传动组件的传动比，使得动力输入组件的动力输入端的转速以一定的变速比变速经传动组件和离合组件向动力输出组件的动力输出端传递。本发明通过设置两套传动组件，且两套传动组件分别用于连接动力输入组件与离合组件之间的动力传递，相比于在先申请的单根连杆传动，克服了单根连杆的死点问题，使骑行更顺畅，提高了骑行的舒适性和骑行效率。
The present invention discloses a gear continuously variable transmission system with a dual transmission structure, which is applied to a bicycle, and includes a power input component, a speed regulating component, a transmission component, a clutch component and a power output component, wherein: there are two transmission components, the two transmission components move synchronously, the two transmission components are respectively used to connect the power input component and the clutch component for power transmission, and the speed regulating component is used to change the transmission ratio of the transmission component, so that the speed of the power input end of the power input component is transmitted to the power output end of the power output component through the transmission component and the clutch component at a certain speed ratio. By setting two transmission components, and the two transmission components are respectively used to connect the power input component and the clutch component for power transmission, the present invention overcomes the dead point problem of the single connecting rod compared to the single connecting rod transmission previously applied for, makes riding smoother, and improves riding comfort and riding efficiency.
Description
Technical Field
The invention relates to the technical field of stepless speed change, in particular to a gear stepless speed change system with a double transmission structure.
Background
Currently, the bicycle speed changing system on the market mainly uses a chain type speed changer, and the speed of the bicycle is changed by changing the cooperation of a chain and gear plates with different front and rear sizes.
In order to meet the various requirements of people on bicycle speed change, the applicant has disclosed a publication No. CN108502094.A, namely a planetary gear stepless speed change system, by changing the displacement of a sliding block in a T-shaped groove, changing the eccentricity and utilizing a crank connecting rod to carry out transmission, although a single connecting rod can carry out transmission, two dead points exist in the transmission process of the single connecting rod, the riding experience is affected due to the fact that the single connecting rod is not smooth enough in the riding process, and in addition, the existing bicycle is generally ridden clockwise, the riding mode is single, and therefore, the prior art needs to be improved.
Disclosure of Invention
The technical problem solved by the invention is to provide a gear stepless speed change system with a double transmission structure, so as to solve the defects in the background art.
The technical problems solved by the invention are realized by adopting the following technical scheme:
The gear stepless speed change system with the double transmission structures comprises two sets of power input assemblies, a speed regulating assembly, a transmission assembly, a clutch assembly and a power output assembly, wherein the two sets of transmission assemblies synchronously move, the two sets of transmission assemblies are respectively used for connecting power transmission between the power input assemblies and the clutch assembly, and the speed regulating assembly is used for changing the transmission ratio of the transmission assemblies so that the rotating speed of the power input end of the power input assembly is transmitted to the power output end of the power output assembly through the transmission assembly and the clutch assembly in a certain speed change ratio.
Further, the power input end can drive the power output end to rotate in the forward direction regardless of the forward rotation or the reverse rotation.
Further, the power input assembly comprises a crank center shaft, a center shaft gear, an upper rocker arm gear and a lower rocker arm gear, wherein the center shaft gear is sleeved on the crank center shaft, and the center shaft gear is meshed with the upper rocker arm gear and the lower rocker arm gear respectively.
Further, the speed regulation assembly comprises a speed regulation screw, a screw conical gear, a speed regulation cylindrical gear, a speed regulation brake wheel, a speed regulation brake gear, a sliding block and a brake clamping plate, wherein the large ends of the upper rocker gear and the lower rocker gear are respectively provided with a T-shaped guide rail, the speed regulation screw, the screw conical gear and the sliding block are arranged in the T-shaped guide rail, and one end of the sliding block is provided with a nut screwed with the speed regulation screw;
The centers of the upper rocker arm gear and the lower rocker arm gear are provided with round holes, speed regulating conical gears are arranged in the round holes, the other ends of the two speed regulating conical gears are fastened with two speed regulating cylindrical gears, a speed regulating brake wheel and a speed regulating brake gear are arranged between the two speed regulating cylindrical gears, the speed regulating brake gear is respectively meshed with the two speed regulating cylindrical gears, the outer ring of the speed regulating brake wheel is provided with a brake clamping plate, and the brake clamping plate is connected with a speed regulating handle at a handle position through a flexible shaft.
Further, the transmission assembly comprises a connecting rod, a rocker arm and a bidirectional rack, a rolling bearing is arranged on the sliding block, one end of the connecting rod is arranged on the rolling bearing, the other end of the connecting rod is connected with the bidirectional rack through the rocker arm, and dead point positions of the two connecting rods of the two sets of transmission assemblies are different.
Further, the dead point positions of the two connecting rods form an included angle of 90 degrees.
Further, the clutch assembly comprises a front overrunning clutch and a rear overrunning clutch which are installed in opposite directions, each overrunning clutch is provided with two overrunning clutches which are arranged up and down, the inner gears of the overrunning clutches of the front overrunning clutch respectively and correspondingly engage with the two sides of the bidirectional rack in one set of transmission assembly, the inner gears of the overrunning clutches of the rear overrunning clutch respectively and correspondingly engage with the two sides of the bidirectional rack in the other set of transmission assembly, and the adjacent gear rings of the overrunning clutches of the two sets are mutually engaged.
Further, the bidirectional racks in the two sets of transmission components synchronously move in a horizontal telescopic mode.
Further, the power take off assembly includes intermediate gear, duplex gear, rear axle gear and rear axle, the intermediate gear meshes with the pinion of duplex gear and the ring gear of two overrunning clutches of back group respectively, and the gear engagement of rear axle is installed on the rear axle to the gear wheel of duplex gear.
Further, the gear stepless speed change system is packaged in a gear box, and a transparent box cover is arranged on the gear box.
By adopting the technical scheme, the invention has the following advantages:
1. According to the invention, by arranging the two sets of transmission components, the two sets of transmission components are respectively connected with the power transmission between the power input component and the clutch component, compared with the transmission of the single connecting rod of the prior application, the upper connecting rod and the lower connecting rod in the two sets of transmission components not only play the role of cyclic connection, but also have the power compensation function, so that the dead point problem of the single connecting rod is overcome, the riding is smoother, and the riding comfort and the riding efficiency are improved.
2. The rocker gear is matched with the speed regulation conical gear and the screw conical gear to roll and rotate, so that the sliding block slides, and further the displacement of the sliding block in the T-shaped groove is changed, so that the eccentricity is changed, when the eccentricity is large, the stroke of the connecting rod bidirectional rack is prolonged, the vehicle speed is increased, otherwise, the eccentric distance is small, the stroke of the connecting rod bidirectional rack is shortened, the vehicle speed is reduced, and the change of the eccentric distance of the sliding block is stepless, so that stepless speed change can be realized.
3. The ingenious design between the two sets of transmission assemblies and the clutch assembly enables a rider to drive the rear wheel to advance no matter the rider uses forward to tread clockwise or counter-clockwise to tread anticlockwise, so that the riding interestingness and entertainment are improved.
4. The stepless speed change system is packaged in the gear box, and the gear box is provided with the transparent box cover, so that the service life is prolonged, and the transparent box cover is adopted, so that the running conditions of internal parts and the system are conveniently observed, and people can experience the fashion and charm of the mechanical structure.
Drawings
FIG. 1 is a schematic diagram of a comparative embodiment of the present invention;
fig. 2 is a cross-sectional view of fig. 1.
In the figure, a gear box 1, a crank center shaft 2, a center shaft gear 3, a flexible shaft 4, a brake clamping plate 5, an upper rocker gear 6, a lower rocker gear 7, a speed regulating screw rod 8, a screw conical gear 9, a speed regulating conical gear 10, a speed regulating cylindrical gear 11, a speed regulating brake wheel 12, a speed regulating brake gear 13, a sliding block 14, an upper connecting rod 15, a lower connecting rod 16, a rocker arm 17, a connecting rod pin 18, a front bidirectional rack 19, a front upper overrunning clutch inner gear 20, a front upper overrunning clutch 21, a front upper overrunning clutch inner gear 22, a front lower overrunning clutch inner gear 23, a front lower overrunning clutch 24, a front lower overrunning clutch inner gear 25, a rear upper overrunning clutch inner gear 26, a rear upper overrunning clutch inner gear 28, a rear lower overrunning clutch inner gear 29, a rear lower overrunning clutch 30, a rear super-lifting clutch inner gear 31, a rear bidirectional rack 32, an intermediate gear 33, a duplex gear 34, a rear shaft gear 35, a rear shaft 36, a rear shaft clutch 37 and a rear hub 38 are shown.
Description of the embodiments
The invention may be further described with reference to the following examples, however, it being understood that the examples described herein are not intended to limit the scope of the invention to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings, but are not to be construed as limiting the scope of the invention. Furthermore, in describing the preferred embodiments, specific terminology will be resorted to for the sake of clarity. It is to be understood that each specific term includes all technical equivalents that operate in a similar manner to accomplish a similar purpose.
Example referring to fig. 1 and 2, a gear stepless speed change system with a double transmission structure is shown, which can be applied to road bicycles, city bicycles, tricycles, cargo bicycles, recumbent bicycles, or any type of bicycle.
The stepless speed change system comprises power input components, speed regulating components, a transmission component, a clutch component and a power output component, wherein the two sets of transmission components are synchronously moved, the two sets of transmission components are respectively used for connecting power transmission between the power input components and the clutch component, and the speed regulating components are used for changing the transmission ratio of the transmission components, so that the rotating speed of the power input end of the power input component is changed in a certain speed change ratio and is transmitted to the power output end of the power output component through the transmission component and the clutch component.
Specifically:
The power input assembly comprises a crank center shaft 2, a center shaft gear 3, an upper rocker arm gear 6 and a lower rocker arm gear 7, wherein the center shaft gear 3 is sleeved on the crank center shaft 2, and the center shaft gear 3 is respectively meshed with the upper rocker arm gear 6 and the lower rocker arm gear 7.
The speed regulating assembly comprises a speed regulating screw rod 8, screw rod conical gears 9, speed regulating conical gears 10, speed regulating cylindrical gears 11, speed regulating brake wheels 12, speed regulating brake gears 13, a sliding block 14 and a brake clamping plate 5, round holes are formed in the centers of the upper swing arm gears 6 and the lower swing arm gears 7, the speed regulating conical gears 10 are installed in the round holes, the other ends of the two speed regulating conical gears 10 are fastened with the two speed regulating cylindrical gears 11, the speed regulating brake wheels 12 and the speed regulating brake gears 13 are arranged between the two speed regulating cylindrical gears 11, the brake clamping plate 5 is arranged on the outer ring of the speed regulating brake wheels 12, the speed regulating brake wheels are installed at a handlebar through flexible shafts 4 and controlled by speed regulating handles, T-shaped guide rails are respectively arranged at the large ends of the upper swing arm gears 6 and the lower swing arm gears 7, the speed regulating screw rod 8 and the screw rod conical gears 9 are installed in the T-shaped guide rails, nuts are arranged at one ends of the sliding block 14 and used for screwing with the speed regulating screw rod 8, and rolling bearings are installed at the other ends of the sliding block 14.
In the two sets of transmission assemblies, one ends of an upper connecting rod 15 and a lower connecting rod 16 are arranged on a rolling bearing of a sliding block 14, the other end of the upper connecting rod 15 is connected with a front bidirectional rack 19 through a rocker arm 17 and a connecting rod pin 18, the other end of the lower connecting rod 16 is connected with a rear bidirectional rack 32 through the rocker arm 17 and the connecting rod pin 18, specifically, the front bidirectional rack 19 is a short rack, the rear bidirectional rack 32 is a long rack, and dead point positions of the upper connecting rod 15 and the lower connecting rod 16 are different, namely, the dead point positions of the upper connecting rod 15 and the lower connecting rod 16 appear alternately, namely, when the upper connecting rod 15 rotates to the dead point position, the upper connecting rod 15 can be punched through the dead point by utilizing the rotation of the lower connecting rod 16, and the lower connecting rod 16 can be compensated by utilizing the rotation of the upper connecting rod 15 through the dead point when the lower connecting rod 16 rotates to the dead point position, namely, the upper connecting rod 15 and the lower connecting rod 16 not only plays a role in cyclic joint, but also has a dynamic compensation function mutually.
More specifically, the upper link 15 makes an angle of 90 ° with the dead center position of the lower link 16.
The clutch assembly comprises a front overrunning clutch and a rear overrunning clutch which are installed in opposite directions, wherein each overrunning clutch is provided with two overrunning clutches which are arranged up and down, the right side is taken as the front, the left side is taken as the rear, a front bidirectional rack 19 is meshed with a front upper overrunning clutch inner gear 20 and a front lower overrunning clutch inner gear 23, a rear bidirectional rack 32 is meshed with a rear upper overrunning clutch inner gear 26 and a rear lower overrunning clutch inner gear 29, a front upper overrunning clutch gear ring 22 is meshed with a rear upper overrunning clutch gear ring 28, a front lower overrunning clutch gear ring 25 is meshed with a rear lower overrunning clutch gear ring 31, and further the clutch assembly further comprises a rack guide piece which is used for keeping the racks to move horizontally and linearly, and the bidirectional racks of the two sets of transmission assemblies move horizontally and synchronously.
The power take-off assembly comprises an intermediate gear 33, a double gear 34, a rear shaft gear 35 and a rear shaft 36, wherein the intermediate gear 33 is respectively meshed with the rear upper overrunning clutch gear ring 28 and the rear lower overrunning clutch gear ring 31, the intermediate gear 33 is meshed with a pinion of the double gear 34, a large gear of the double gear 34 is meshed with the rear shaft gear 35, the rear shaft gear 35 is arranged on the rear shaft 36, the rear shaft 36 is arranged on the rear shaft clutch 37, and the rear shaft clutch 37 is arranged in the rear hub 38.
Due to the adoption of the structure:
When the middle shaft gear 3 rotates clockwise, the upper rocker arm gear 6 rotates reversely, the front bidirectional rack 19 reciprocates left and right under the action of the upper connecting rod 15 and the rocker arm 17, the front upper overrunning clutch is in a disconnected state and the front lower overrunning clutch is in a combined state when the front bidirectional rack 19 moves rightwards, the front upper overrunning clutch inner gear 20 rotates reversely, the front lower overrunning clutch inner gear 23 rotates positively, the front lower overrunning clutch gear ring 25 rotates positively, the rear lower overrunning clutch gear ring 31 rotates reversely, the middle gear 33 rotates positively, the duplex gear 34 rotates reversely, and the rear shaft 36 and the rear shaft gear 35 rotate positively to drive the rear wheels to advance;
Conversely, when the front bidirectional rack 19 moves leftwards, the front upper overrunning clutch is in a combined state, the front lower overrunning clutch is in a disconnected state, the front lower overrunning clutch inner gear 23 idles reversely, the front upper overrunning clutch gear ring 22 rotates positively, the rear upper overrunning clutch gear ring 28 rotates reversely, the intermediate gear 33 rotates positively, the duplex gear 34 rotates reversely, the rear shaft 36 and the rear shaft gear 35 rotate positively, and the rear wheels are driven to advance;
the lower rocker arm gear 7 rotates reversely when the middle shaft gear 3 rotates clockwise, the rear bidirectional rack 32 reciprocates left and right, the rear upper overrunning clutch is in a combined state and the rear lower overrunning clutch is in a disconnected state when the rear bidirectional rack 32 moves rightwards, the rear lower super-lifting clutch gear ring 31 rotates reversely, the rear upper overrunning clutch inner gear 26 and the rear upper overrunning clutch gear ring 28 rotate reversely in a combined way, the middle gear 33 rotates positively, the duplex gear 34 rotates reversely, and the rear shaft 36 and the rear shaft gear 35 rotate positively to drive the rear wheels to advance;
When the front bidirectional rack 19 moves leftwards, the rear upper overrunning clutch is in an off state, the rear lower overrunning clutch is in a combined state, the rear upper overrunning clutch inner gear 26 idles positively, the rear lower overrunning clutch inner gear 29 and the rear lower super-lifting clutch gear ring 31 are combined and rotate reversely, the intermediate gear 33 rotates positively, the duplex gear 34 rotates reversely, and the rear shaft 36 and the rear shaft gear 35 rotate positively to drive the rear wheels to advance;
The cyclic relay of the rack and the overrunning clutch is utilized, no matter the rack moves leftwards or rightwards, the rack can be transmitted to the rear axle 36 through the clutch mechanism to drive the rear wheel to advance, namely the power input end can drive the power output end to rotate forwards no matter rotating forwards or reversely, so that the rear wheel can advance, namely a rider can drive the rear wheel to advance no matter riding is carried out by stepping clockwise or counter-clockwise, and the riding interestingness and entertainment are increased
Furthermore, the stepless speed change system can be packaged in the gear box 1, and the gear box 1 is provided with a transparent box cover, so that the running condition of internal parts and the system can be conveniently observed, and the fashion and charm of a mechanical structure can be also reflected.
In this embodiment, the specific installation is as follows:
The crank middle shaft 2 is connected with the middle shaft gear 3, the connected middle shaft gear 3 is arranged in the gear box 1, the upper rocker arm gear 6 and the lower rocker arm gear 7 are respectively meshed, the speed regulating conical gear 10 is respectively arranged in round holes of the upper rocker arm gear 6 and the lower rocker arm gear 7, the speed regulating cylindrical gear 11 is arranged at the other end of the speed regulating conical gear 10, the braking clamp 5 and the flexible shaft 4 are utilized to carry out braking speed regulation on the speed regulating braking wheel 12, the screw conical gear 9 is arranged in a T-shaped guide rail of the upper rocker arm gear 6 and the lower rocker arm gear 7 in turn, the sliding block 14 is arranged in a T-shaped groove, a nut at one end of the sliding block 14 is in rotary joint with the speed regulating screw 8 and the screw conical gear 9, a rolling bearing connected with the upper connecting rod 15 and the lower connecting rod 16 is arranged at the other end of the sliding block 14, the front upper overrunning clutch gear ring gear 22, the rear upper overrunning clutch ring gear 28, the front upper overrunning clutch inner gear 20 and the rear overrunning clutch inner gear 26 are respectively meshed with the front overrunning clutch 21, the rear upper overrunning clutch inner gear 27, the rear overrunning clutch inner gear 29, the front overrunning clutch inner gear 31 and the rear overrunning clutch 30 are respectively meshed with the rear overrunning clutch 30, the front overrunning clutch 23 and the rear overrunning clutch 30, the rear overrunning clutch 31 and the rear overrunning clutch 30 are respectively meshed with the front overrunning clutch 30, the rear overrunning clutch 32, the front overrunning clutch 32 and the rear overrunning clutch 30 are meshed with the front overrunning clutch 30 and the rear overrunning clutch 30 respectively, the front overrunning clutch 31 and the front overrunning clutch and the rear overrunning clutch 30 are meshed with the front overrunning clutch and the front overrunning clutch 30 respectively, the rear axle gear 35 is engaged to transmit driving force to the rear axle 36 and the rear axle clutch 37 to drive the rear wheels forward, and the rear axle gear 35 finally mounts the gear box 1.
In this embodiment, the specific shift process is as follows:
when the bicycle is required to speed up, a speed regulation handle on a handlebar is screwed, a brake clamp 5 is pulled by a flexible shaft 4 to brake a speed regulation brake wheel 12, the speed regulation brake wheel 12 stops rotating, a crank center shaft 2 always rotates, an upper rocker arm gear 6 and a lower rocker arm gear 7 are arranged, a screw conical gear 9 in the crank center shaft 2 rolls and rotates on a speed regulation conical gear 10 to drive the screw conical gear 9 to rotate, the screw conical gear 9 rotates to drive a nut to do linear motion, the nut drives a slide block 14 to move, the eccentricity of the slide block 14 is enlarged, and when the rotation speed of the crank center shaft 2 is unchanged, the bicycle speed is increased;
When the speed of the bicycle is required to be reduced, the crank middle shaft 2 is reversely stepped to rotate in the anticlockwise direction, the wheels can be driven forwards, the speed regulating handle is screwed, the flexible shaft 4 tightens the brake clamp 5, the speed regulating brake wheel 12 is braked, the speed regulating brake wheel 12 stops rotating, the crank middle shaft 2 continues to rotate anticlockwise, the screw conical gear 9 rotates on the speed regulating conical gear 10 in a rolling way, the eccentricity of the sliding block 14 is reduced, the speed regulating handle on the handlebar is loosened when the speed is required to be increased or reduced, and the eccentricity of the sliding block 14 can be changed by changing the displacement of the sliding block 14 in the T-shaped groove.
When the eccentricity is large, the travel of the upper connecting rod 15 and the lower connecting rod 16 is prolonged, the vehicle speed is increased, otherwise, the eccentricity is small, the travel of the upper connecting rod 15 and the lower connecting rod 16 is shortened, the travel of the front two-way rack 19 and the rear two-way rack 32 is prolonged, the travel of the vehicle rack connecting rod is prolonged and slowed down, and the eccentric distance of the sliding block 14 is changed steplessly, so that riding stepless speed change can be realized.
While the fundamental and principal features of the invention and advantages of the invention have been shown and described, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257509.3A CN116279961B (en) | 2023-03-17 | 2023-03-17 | A gear continuously variable transmission system with dual transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310257509.3A CN116279961B (en) | 2023-03-17 | 2023-03-17 | A gear continuously variable transmission system with dual transmission structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116279961A CN116279961A (en) | 2023-06-23 |
| CN116279961B true CN116279961B (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310257509.3A Active CN116279961B (en) | 2023-03-17 | 2023-03-17 | A gear continuously variable transmission system with dual transmission structure |
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| CN (1) | CN116279961B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203528730U (en) * | 2013-09-21 | 2014-04-09 | 于成伟 | Step-type bike |
| CN108502094A (en) * | 2018-05-14 | 2018-09-07 | 赵宁 | Step-less speed changing planetary gear system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101337571B (en) * | 2008-08-05 | 2014-11-05 | 傅家三 | Planet gear mechanism for switching end-to-end motion |
| KR101496864B1 (en) * | 2012-04-05 | 2015-03-02 | 김수종 | Bicycle with acceleration pedal using rewinder |
| CN114475903A (en) * | 2022-02-24 | 2022-05-13 | 淮阴工学院 | A transmission mechanism and a bicycle without dead point |
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- 2023-03-17 CN CN202310257509.3A patent/CN116279961B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203528730U (en) * | 2013-09-21 | 2014-04-09 | 于成伟 | Step-type bike |
| CN108502094A (en) * | 2018-05-14 | 2018-09-07 | 赵宁 | Step-less speed changing planetary gear system |
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| Publication number | Publication date |
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| CN116279961A (en) | 2023-06-23 |
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