CN215752862U

CN215752862U - Two-wheel vehicle transmission device and two-wheel vehicle

Info

Publication number: CN215752862U
Application number: CN202122112894.1U
Authority: CN
Inventors: 马驰; 李鹏; 张友谊
Original assignee: Shagang Technology Shanghai Co ltd
Current assignee: Shagang Technology Shanghai Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-02-08
Anticipated expiration: 2031-09-02

Abstract

The embodiment of the application provides a two-wheel vehicle transmission device and a two-wheel vehicle, wherein the two-wheel vehicle transmission device comprises a transmission assembly, a pedal assembly and a driven assembly; the transmission assembly comprises a first transmission shaft and a second transmission shaft, and one end of the first transmission shaft is fixedly connected with one end of the second transmission shaft through a universal joint assembly; the pedal assembly comprises a driving fluted disc, a first gear is arranged at one end, far away from the universal joint assembly, of the first transmission shaft, the first gear is connected with the first transmission shaft, and the first gear is meshed with the driving fluted disc; the driven assembly comprises a driven fluted disc, a second gear is arranged at one end, far away from the universal joint assembly, of the second transmission shaft, the second gear is connected with the second transmission shaft, and the second gear is meshed with the driven fluted disc. The embodiment of the application adopts a shaft transmission mode, so that the transmission efficiency is improved; compact structure, the difficult wearing and tearing of part have promoted the life of each spare part, have reduced the fault rate.

Description

Two-wheel vehicle transmission device and two-wheel vehicle

Technical Field

The embodiments of the application belong to the field of transmission of two-wheeled vehicles, and more particularly relate to a transmission device of a two-wheeled vehicle and the two-wheeled vehicle.

Background

Common two-wheeled vehicles mainly include motorcycles, electric bicycles, and bicycles. But motorcycles have gradually been eliminated because of their environmental unfriendliness and low safety factor; along with this, environmental protection type electric bicycles and bicycles are more and more favored by people.

The electric bicycle is a mechatronic personal transportation tool which takes a storage battery as auxiliary energy and is provided with a motor, a controller, the storage battery, a steering handle and other control components and a display instrument system on the basis of a common bicycle.

The electric bicycle is driven by the electric energy of the storage battery, because the electric energy stored in the storage battery is limited, when the electric energy is insufficient, an external power assisting device is needed to assist the vehicle to move forward. Pedal booster unit can all be installed to common electric bicycle and bicycle in the market, and the pedal resistance device of present electric bicycle and bicycle uses chain drive's mode mostly, and there is following problem in present chain drive:

1. the transmission efficiency of chain transmission is low, the user feels tired when riding for a certain distance, and the user cannot support riding for a medium or long distance; especially for the old or the young, it is very unfriendly, and the user experience is not good.

2. Because the chain and the gear are in clearance fit, the abrasion is easy to cause; the problem that the maintenance cost is high due to the high failure rate of the chain transmission mode is caused.

3. Generally, a chain directly drives the rear wheel to rotate in chain transmission, and the chain and a rear wheel flywheel must be compactly connected, so that a damping mechanism cannot be installed on the rear wheel, and the riding comfort of the existing electric bicycle and the existing bicycle is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, in a first aspect, an embodiment of the present application provides a two-wheel vehicle transmission device, including a transmission assembly, a pedal assembly and a driven assembly; the transmission assembly comprises a first transmission shaft and a second transmission shaft, and one end of the first transmission shaft is fixedly connected with one end of the second transmission shaft through a universal joint assembly; the pedal assembly comprises a driving fluted disc, a first gear is arranged at one end, far away from the universal joint assembly, of the first transmission shaft, the first gear is connected with the first transmission shaft, and the first gear is meshed with the driving fluted disc; the driven assembly comprises a driven fluted disc, a second gear is arranged at one end, far away from the universal joint assembly, of the second transmission shaft, the second gear is connected with the second transmission shaft, and the second gear is meshed with the driven fluted disc.

As a further improvement of the present application, the joint assembly includes a first joint, a second joint, and a third propeller shaft; the two ends of the third transmission shaft are respectively connected with the first universal joint and the second universal joint, one end of the first universal joint, which is far away from the third transmission shaft, is connected with the first transmission shaft, and one end of the second universal joint, which is far away from the third transmission shaft, is connected with the second transmission shaft.

As a further refinement of the present application, the footrest assembly further includes two footrest plates and a central shaft; the two pedals are respectively provided with a crank, the directions of the two cranks are opposite, one ends of the two cranks, which are far away from the pedals, are respectively connected with two ends of the central shaft, and the driving fluted disc is sleeved on the central shaft and synchronously rotates along with the central shaft.

As a further refinement of the present application, the driven assembly further comprises a rear wheel; the rear wheel is connected with the driven fluted disc and rotates synchronously along with the driven fluted disc.

As a further improvement of this application, the periphery lateral wall array of initiative fluted disc is equipped with first interlock tooth, the lateral wall of first gear be equipped with the second interlock tooth of first interlock tooth adaptation, first interlock tooth with the meshing of second interlock tooth.

As a further improvement of the application, the number of the first meshing teeth is 6-7 times that of the second meshing teeth.

As a further improvement of this application, the periphery lateral wall array of driven fluted disc is equipped with the third interlock tooth, the lateral wall of second gear be equipped with the fourth interlock tooth of third interlock tooth adaptation, the third interlock tooth with the meshing of fourth interlock tooth.

As a further improvement of the present application, the number of the third engaging teeth is 4 to 5 times the number of the fourth engaging teeth.

On the other hand, this application still provides a two wheeler, contains frame and above-mentioned two wheeler transmission, the frame with two wheeler rotating device connects.

As a further improvement of this application, the frame includes preceding mount and rear suspension, the one end of rear suspension with preceding mount is articulated, the pedal subassembly with preceding mount is connected, driven subassembly with rear suspension connects, rear suspension keeps away from one side of hinged end is equipped with back damper, back damper keeps away from the one end of rear suspension with preceding mount is connected.

Compared with the prior art, the method has the following beneficial effects:

1. the pedal assembly and the driven assembly are connected through the universal joint assembly, so that a driving mode of two-wheel axle transmission power is realized, and the transmission efficiency can be effectively improved; the requirement of riding for a long distance in the user is met, and the experience of the user is improved.

2. In the embodiment of the application, the first gear and the driving fluted disc and the second gear and the driven fluted disc are all in meshed connection relation, the integral connection is more compact, the parts are not easy to wear, the service life of each part is prolonged, and the failure rate is reduced.

3. A universal joint assembly is arranged between the first rotating shaft and the second rotating shaft, so that the matching angle between the first rotating shaft and the second rotating shaft can be adjusted, namely, the two rotating shafts can not transmit driving force on the same straight line; therefore, adopt the technical scheme of this application embodiment, the rear wheel mountable damper of two wheeler to improve the comfort level of riding of two wheeler.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions, and it will be understood by those skilled in the art that the drawings are not necessarily drawn to scale, in which:

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic view of a connection structure between a driving cog and a first transmission shaft according to an embodiment of the present application;

FIG. 4 is a schematic view of the overall structure of embodiment 2 of the present application;

fig. 5 is a schematic view of the overall structure of embodiment 3 of the present application.

Reference numerals: 1. a foot pedal; 2. a central shaft; 3. a crank; 4. a driving fluted disc; 41. a first engaging tooth; 5. a driven fluted disc; 51. a third engaging tooth; 6. a rear wheel; 7. a first drive shaft; 8. a second drive shaft; 9. a first gear; 91. a second engaging tooth; 10. a second gear; 101. a fourth engaging tooth; 11. a first universal joint; 12. a second universal joint; 13. a third drive shaft; 14. a front fixing frame; 15. a rear suspension; 16. and a rear shock absorber.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

As shown in fig. 1-3, the present application provides a transmission device for a two-wheeled vehicle, which includes a pedal assembly, a transmission assembly and a driven assembly, wherein the pedal assembly is used for providing a driving force to drive the driven assembly to move, the transmission assembly is used for transmitting the driving force generated by the pedal assembly to the driven assembly, and the driven assembly is used for driving the two-wheeled vehicle to move forward.

The pedal subassembly includes two running-boards 1 and central axle 2, and the tip of two running-boards 1 is equipped with crank 3 respectively, and two crank 3 orientation is opposite, two crank 3's the other end respectively with central axle 2 fixed connection, the middle part cover of central axle 2 is equipped with initiative fluted disc 4, and initiative fluted disc 4 can be with central axle 2 synchronous revolution. First meshing teeth 41 are arrayed on the outer peripheral side wall of the driving fluted disc 4, and the first meshing teeth 41 are connected with the transmission assembly. When a user drives the pedal 1 to move with force, the pedal 1 drives the crank 3 to rotate, the crank 3 drives the central shaft 2 and the driving toothed disc 4 to rotate synchronously, and the driving toothed disc 4 transmits driving force to the transmission assembly so as to drive the transmission assembly to move.

Driven subassembly includes driven fluted disc 5 and rear wheel 6, driven fluted disc 5 and rear wheel 6 fixed connection, and rear wheel 6 can be with driven fluted disc 5 synchronous revolution. And third meshing teeth 51 are arrayed on the outer peripheral side wall of the driven fluted disc 5, and the third meshing teeth 51 are connected with the transmission assembly. During operation, drive assembly can conduct drive power to driven assembly on to the driven fluted disc 5 of drive is rotatory, and driven fluted disc 5 drives 6 rotations of rear wheel, thereby the drive two wheeler gos forward.

The transmission assembly comprises a first transmission shaft 7 and a second transmission shaft 8, and one end of the first transmission shaft 7 is fixedly connected with one end of the second transmission shaft 8 through a universal joint assembly. The end part of one end of the first transmission shaft 7, which is far away from the universal joint component, is provided with a first gear 9, the outer side wall of the first gear 9 is provided with second meshing teeth 91 matched with the first meshing teeth 41 on the driving toothed disc 4 in an array mode, and the first meshing teeth 41 are meshed with the second meshing teeth 91. The end part of one end, far away from the universal joint assembly, of the second transmission shaft 8 is provided with a second gear 10, a fourth meshing tooth 101 matched with the third meshing tooth 51 on the driven fluted disc 5 is arranged on the outer side wall of the second gear 10 in an array mode, and the third meshing tooth 51 is meshed with the fourth meshing tooth 101.

When a user applies force to the pedal 1, the central shaft 2 can drive the driving fluted disc 4 to rotate, and the driving fluted disc 4 drives the first gear 9 and the first transmission shaft 7 to rotate; the first transmission shaft 7 rotates and simultaneously drives the universal joint assembly, the second transmission shaft 8 and the second gear 10 to synchronously rotate; the second gear 10 drives the driven fluted disc 5 to rotate, and the driven fluted disc 5 drives the rear wheel 6 to rotate, thereby driving the two-wheel vehicle to move forward.

In the present embodiment, the first engaging tooth 41 and the third engaging tooth 51 are provided in an arc shape; meanwhile, the second engaging tooth 91 and the fourth engaging tooth 101 are provided in a spiral shape. Therefore, the fit clearance between the first gear 9 and the driving fluted disc 4 and between the second gear 10 and the driven fluted disc 5 can be reduced, so that the loss of the driving force at the part connection part is reduced, and the transmission efficiency is improved; meanwhile, the friction loss can be reduced, the service life of each component is prolonged, and the driving stability of the two-wheel axle transmission device is improved.

In this embodiment, the universal joint assembly is a first universal joint 11, that is, the first transmission shaft 7 and the second transmission shaft 8 are fixedly connected to two ends of the first universal joint 11 respectively. When the two-wheel axle transmission device is arranged on a two-wheel vehicle to work, the first universal joint 11 is arranged between the first transmission shaft 7 and the second transmission shaft 8, so that the matching angle between the first transmission shaft 7 and the second transmission shaft 8 in the two-wheel axle transmission device can be adjusted, namely the first transmission shaft 7 and the second transmission shaft 8 can not transmit driving force on a straight line; therefore, by adopting the two-wheel axle transmission device, the two-wheel vehicle can be provided with the shock absorber, thereby improving the riding comfort of the two-wheel vehicle.

The two-wheel vehicle with the two-wheel axle transmission device and the damping mechanism runs on a bumpy road surface, the rear wheel 6 is bumped and properly bounces to leave the road surface for a certain height, and the first universal joint 11 is arranged between the first transmission shaft 7 and the second transmission shaft 8, so that when the second transmission shaft 8 bounces along with the rear wheel 6 and is tilted upwards, the first transmission shaft 7 does not need to be tilted, and the riding is more stable; then under the effect of bumper shock absorber, on rear wheel 6 got back to the road surface for second transmission shaft 8 also resets along with rear wheel 6, and first transmission shaft 7 still has reduced the transmission loss on original motion position this moment, has improved the effect of moving away to avoid possible earthquakes, has promoted the comfort level of riding.

In the embodiment, the first gear 9 is in detachable limited connection with the first transmission shaft 7 through a bolt, and the second gear 10 is in detachable limited connection with the second transmission shaft 8 through a bolt; the first gear 9 and the first transmission shaft 7, and the second gear 10 and the second transmission shaft 8 are detachably connected to each other, so that the driving force can be adjusted. Specifically, the first gear 9 and the second gear 10 of different diameter number of teeth are changed to the accessible to adjust this two-wheeled axletree transmission's drive power size, promoted the device's practicality, can satisfy different crowds ' the demand of riding. In other embodiments, the first gear 9 and the first transmission shaft 7, and the second gear 10 and the second transmission shaft 8 may also be any one of the detachable limit connection methods in other prior arts, for example: socket joint, snap connection, threaded connection or glue connection, etc.

In the present embodiment, the number of the first engaging teeth 41 is 6 to 7 times the number of the second engaging teeth 91; preferably 6.6 times, i.e. 1 rotation of the driving toothed disc 4, brings about 6.6 rotations of the first toothed wheel 9. The number of the third meshing teeth 51 is 4-5 times that of the fourth meshing teeth 101; preferably 4.6 times, i.e. 4.6 rotations of the second gear 10, the driven toothed disc 5 is driven to rotate 1 rotation. Of course, in other embodiments, the first gear 9 and the second gear 10 with different diameter tooth numbers can be replaced according to the actual driving force.

The working principle is as follows: a user applies driving force to the pedal 1, the pedal 1 drives the crank 3 to rotate, and the crank 3 drives the central shaft 2 and the driving fluted disc 4 to synchronously rotate; the driving fluted disc 4 drives the first gear 9 engaged with the driving fluted disc to rotate, and the first gear 9 drives the first transmission shaft 7 to rotate; the first universal joint 11 is driven to rotate while the first transmission shaft rotates, and the first universal joint 11 drives the second transmission shaft 8 and the second gear 10 to rotate; the second gear 10 drives the driven toothed disc 5 engaged therewith to rotate, and the driven toothed disc 5 rotates to drive the rear wheel 6 to rotate synchronously, thereby advancing the two-wheeled vehicle.

Example 2

As shown in fig. 4, based on the structure of embodiment 1, the universal joint assembly in the two-wheel axle transmission device includes a first universal joint 11, a second universal joint 12, and a third transmission shaft 13, both ends of the third transmission shaft 13 are respectively fixedly connected to the first universal joint 11 and the second universal joint 12, one end of the first universal joint 11 away from the third transmission shaft 13 is fixedly connected to the first transmission shaft 7, and one end of the second universal joint 12 away from the third transmission shaft 13 is fixedly connected to the second transmission shaft 8.

By adopting the technical scheme in the embodiment, when the two-wheel axle transmission device is installed, the first transmission shaft 7 and the second transmission shaft 8 can not be on the same straight line, namely, the whole transmission assembly can be designed into a shape similar to the shape of a letter 'Z', so that the two-wheel vehicle is more flexible in design, higher in space utilization rate and more compact in overall structure. Simultaneously, the shock-proof effect is also improved to some extent, and the riding comfort is better.

The two-wheel vehicle with the two-wheel axle transmission device and the shock absorber is characterized in that when the two-wheel vehicle runs on a bumpy road surface, the rear wheel 6 is bumpy and can properly bounce to leave the road surface for a certain height, at the moment, the second transmission shaft 8 can tilt upwards along with the rear wheel 6, meanwhile, the third transmission shaft 13 can tilt along with the second transmission shaft 8 in a small amount, and the first transmission shaft 7 does not need to tilt, so that the riding is more stable; then under the effect of bumper shock absorber, on rear wheel 6 got back to the road surface for second transmission shaft 8 also resets along with rear wheel 6, drives third transmission shaft 13 and also resets after that, and first transmission shaft 7 still has reduced the transmission loss on original motion position this moment, has improved the effect of moving away to avoid possible earthquakes, has promoted the comfort level of riding.

Example 3

As shown in fig. 5, a two-wheeled vehicle includes the two-wheeled axle transmission device of embodiment 2, and further includes a frame, which is used as a mounting and positioning structure for each component in the whole vehicle, and simultaneously ensures the structural stability of the whole vehicle.

The frame comprises a front fixing frame 14 and a rear suspension 15, and one end of the rear suspension 15 is hinged with the front fixing frame 14, namely, the rear suspension 15 can rotate relative to the front fixing frame 14 by taking the hinged position as a base point. And a rear shock absorber 16 is fixedly arranged on one side of the rear suspension 15 away from the hinged end, and the other end of the rear shock absorber 16 is fixedly connected with the front fixing frame 14. The rear suspension 15, the front fixing frame 14 and the rear shock absorber 16 form a closed triangle, so that the shock absorption effect of the two-wheel vehicle can be improved on one hand, and the structural stability of the two-wheel vehicle can be improved on the other hand. The center shaft 2 among the pedal assembly passes through bearing fixed mounting on preceding mount 14, and two running-boards 1 are located the left and right sides of preceding mount 14 respectively, and through applying external force to running-board 1, center shaft 2 can be at the 14 internal rotations of preceding mount, and rear wheel 6 passes through bearing fixed mounting on rear suspension 15, transmission assembly and rear suspension 15 and the spacing fixed connection of preceding mount 14.

The working principle is as follows: when riding, a user applies driving force to the two pedals 1 to respectively drive the two cranks 3 to rotate, and the cranks 3 drive the central shaft 2 to rotate in the front fixed frame 14, so that the driving fluted disc 4 is driven to rotate; meanwhile, the driving fluted disc 4 drives the first gear 9 and the first transmission shaft 7 to rotate, the first transmission shaft 7 drives the third transmission shaft 13 to rotate through the first universal joint 11, and the third transmission shaft 13 drives the second transmission shaft 8 and the second gear 10 to rotate through the second universal joint 12; finally, the second gear 10 rotates the driven toothed disc 5 and the rear wheel 6, thereby driving the vehicle forward.

When the vehicle rides on a bumpy road surface, the rear wheel 6 can bounce upwards to leave the road surface for a certain height, and simultaneously the rear wheel 6 drives the rear suspension 15 to rotate upwards relative to the front fixing frame 14, so that the rear shock absorber 16 is compressed; when the vehicle leaves a bumpy road, the rear suspension 15 rotates downward relative to the front mount 14 to return to the road rapidly under the reaction force of the rear shock absorber 16. Thereby reach the effect of moving away to avoid possible earthquakes, promoted the comfort level of riding.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A transmission device of a two-wheeled vehicle is characterized by comprising a transmission component, a pedal component and a driven component;

the transmission assembly comprises a first transmission shaft and a second transmission shaft, and one end of the first transmission shaft is fixedly connected with one end of the second transmission shaft through a universal joint assembly;

the pedal assembly comprises a driving fluted disc, a first gear is arranged at one end, far away from the universal joint assembly, of the first transmission shaft, the first gear is connected with the first transmission shaft, and the first gear is meshed with the driving fluted disc;

the driven assembly comprises a driven fluted disc, a second gear is arranged at one end, far away from the universal joint assembly, of the second transmission shaft, the second gear is connected with the second transmission shaft, and the second gear is meshed with the driven fluted disc.

2. The two wheel vehicle transmission of claim 1, wherein said universal joint assembly includes a first universal joint, a second universal joint, and a third driveshaft;

the two ends of the third transmission shaft are respectively connected with the first universal joint and the second universal joint, one end of the first universal joint, which is far away from the third transmission shaft, is connected with the first transmission shaft, and one end of the second universal joint, which is far away from the third transmission shaft, is connected with the second transmission shaft.

3. The two wheel vehicle transmission of claim 1, wherein said pedal assembly further includes two pedals and a central shaft;

the two pedals are respectively provided with a crank, the directions of the two cranks are opposite, one ends of the two cranks, which are far away from the pedals, are respectively connected with two ends of the central shaft, and the driving fluted disc is sleeved on the central shaft and synchronously rotates along with the central shaft.

4. The two wheel vehicle transmission of claim 1, wherein the driven assembly further includes a rear wheel;

the rear wheel is connected with the driven fluted disc and rotates synchronously along with the driven fluted disc.

5. The two wheel vehicle transmission of claim 1, wherein the peripheral side wall array of the driving chainring is provided with first meshing teeth, the outer side wall of the first gear is provided with second meshing teeth adapted to the first meshing teeth, and the first meshing teeth mesh with the second meshing teeth.

6. A two wheel vehicle transmission as claimed in claim 5, wherein the number of first meshing teeth is 6 to 7 times the number of second meshing teeth.

7. The two wheel vehicle transmission of claim 1, wherein the peripheral side wall array of the driven chainring is provided with third meshing teeth, the outer side wall of the second gear is provided with fourth meshing teeth adapted to the third meshing teeth, and the third meshing teeth mesh with the fourth meshing teeth.

8. The two wheel vehicle transmission of claim 7, wherein the number of said third meshing teeth is 4-5 times the number of said fourth meshing teeth.

9. A two-wheeled vehicle comprising a frame and a two-wheeled vehicle transmission as claimed in any one of claims 1 to 8, said frame being connected to said two-wheeled vehicle rotation means.

10. The two-wheeled vehicle of claim 9, wherein said frame includes a front frame and a rear suspension, one end of said rear suspension being pivotally connected to said front frame, said foot pedal assembly being connected to said front frame, said driven assembly being connected to said rear suspension, a rear shock absorbing mechanism being provided on a side of said rear suspension remote from said pivotally connected end, one end of said rear shock absorbing mechanism remote from said rear suspension being connected to said front frame.