Double-drive two-wheeled vehicle

Abstract

A double-drive two-wheeled vehicle comprises an initial driving device arranged on a rear wheel, a gearbox arranged on a head tube, a terminal driven device arranged on a front wheel and a middle transmission device arranged on a frame, and the initial driving device outputs the rotating speed and torque of a chain wheel to the middle transmission device and the gearbox in the same mode. The terminal driven device inputs driving force the same as that of the rear wheel from the middle transmission device and then transmits the driving force to the front wheel, so that double-wheel driving is achieved, the clutch device arranged in the gear box can connect or disconnect gear torsion, and people can select single-wheel driving or double-wheel driving according to different occasions. The torque distribution device can overcome the defects of insufficient road holding force, drifting and the like caused by non-uniform torque distribution when the two-wheeled vehicle climbs a slope or a field or an ice and snow covered road surface.

Description

Two-wheel drive vehicle Technical Fields

[0001] This invention relates to a two-wheeled vehicle, and more particularly to a multi-point drive two-wheeled vehicle. Background Technology:

[0002] Modern two-wheeled vehicles, including bicycles, motorcycles, and electric vehicles, are technologically advanced and popular modes of transportation. They are inexpensive to buy and economical to use. However, they all share a common problem: single-wheel drive. While this can meet daily transportation needs, it can lead to insufficient driving force or drifting when climbing hills or driving in fields. In particular, riding on snow or ice in winter can easily cause the wheels to slip and drift. Invention content:

[0003] To overcome the shortcomings of existing two-wheeled vehicles that can only be driven by one wheel, this invention provides a dual-drive two-wheeled vehicle that not only has rear-wheel drive but also front-wheel drive. It can be driven by both wheels simultaneously or by one wheel. Normally, it can be driven by one or both wheels. When driving on slopes, fields, or icy and snowy roads, it can switch to dual-wheel drive, which provides strong driving force and reliable grip.

[0004] The technical solution adopted in this invention is: a dual-drive two-wheeled vehicle, including a frame 1, a rear wheel 2, and a front wheel 3, characterized in that: an initial drive device is provided at the axle of the rear wheel 2, a gearbox is provided at the frame 1, a terminal driven device is provided at the axle of the front wheel 3, and an intermediate transmission device is provided on the frame 1.

[0005] The initial drive unit includes a base 18, a seated bearing 19, a drive shaft 29, a gear 23, a gear 24, a base 26, a seated bearing 27, and a seated bearing 31. The base 18 is fixed to one end of the rear upper fork and rear lower fork 32 of the frame, and the seated bearing 19 is provided on the base 18. The base 26 is fixed to the other end of the rear upper fork and rear lower fork 32, and the seated bearing 27 is provided on the base 26. Both ends of the drive shaft 29 are installed in the seated bearings 19 and 27, and the sprocket 30 is installed on the drive shaft 29. Gear 23 is mounted on one end of drive shaft 29. A seated bearing 31 is provided on base 18. The rear end of drive shaft 4 is mounted in the seated bearing 31, and gear 24 is mounted on its end. Gear 23 and gear 24 mesh. The gearbox includes base 39, gear shafts 41, 42, 43, gears 36, 37, and 38. Base 39 is mounted on head tube 34 below handlebar 33 via a semi-circular opening 51 and a clamp 44. Base 39 has shaft holes 52, 53, and 54. Gear shaft 41 is installed in shaft hole 52 and its lower end is fixed to the upper end of coupling 12, with gear 36 fixed to its upper end. Gear shaft 42 is installed in shaft hole 53 and its upper end is equipped with gear 37. Gear shaft 43 is installed in shaft hole 54 and its upper end is fixed with gear 38, with its lower end fixed to the upper end of coupling 13. The terminal driven device includes base 63, seated bearing 64, seated bearing 65, gear 66, gear 67, terminal driven shaft 59, base 56, and seated bearing 57. Base 63 is fixed to... On one side of the front fork end, a base 63 is provided with a seated bearing 64, and on the other side of the front fork end, a base 56 is fixedly connected, and a seated bearing 57 is provided on the base 56. The two ends of the terminal driven shaft 59 are installed in the seated bearing 64 and the seated bearing 57. The hub 62 is installed on the terminal driven shaft 59. The gear 67 is installed at one end of the terminal driven shaft 59. A seated bearing 65 is provided on the base 63. The lower end of the drive shaft 17 is installed in the seated bearing 65 and a gear 66 is installed at its end. The gear 66 and the gear 67 mesh.The intermediate transmission device includes drive shafts 4, 7, 10, 14, and 17; couplings 6, 8, 12, 13, and 15; seated bearings 5, 9, 11, and 16. The front end of drive shaft 4 is mounted in seated bearing 5 and its end is fixed to the rear end of coupling 6. The rear end of drive shaft 7 is fixed to the front end of coupling 6, and the front end of drive shaft 7 is fixed to the rear end of coupling 8. The rear end of drive shaft 10 is mounted... In the mounted bearing 9, its end is fixed to the front end of the coupling 8; its front end is mounted in the mounted bearing 11, and its end is fixed to the lower end of the coupling 12. The upper end of the drive shaft 14 is fixed to the lower end of the coupling 13, and its lower end is fixed to the upper end of the coupling 15. The drive shaft 14 is a splined telescopic shaft. The upper end of the drive shaft 17 is mounted in the mounted bearing 16, and its end is fixed to the lower end of the coupling 15. The mounted bearings 5, 9, 11, and 16 are all mounted on the frame.

[0006] The initial drive device further includes a tensioning device, which comprises a screw 20 and a tensioning plate 21. One end of the screw 20 is fixed to the rear end of the seated bearing 19 or 27. The tensioning plate 21 is installed at the rear end of the base 18 or 26. The other end of the screw 20 passes through the tensioning plate 21 and a nut is installed at that end. The seated bearing 19 or 27 slides freely within the guide grooves provided on the upper and lower sides of the base 18 or 26 via guide rails provided on the upper and lower sides, respectively, to tension the chain. The terminal driven device further includes a fastening device, which comprises a positioning plate 70 or 61 and a bolt 69 or 60. A guide rail is provided on both the front and rear sides of the seated bearing 64 or 57, located at the lower end of base 63 or base 56. Guide grooves are provided on the inner sides of the two lower arms of base 63 or base 56, corresponding to the guide rails of the seated bearing 64 or 57. The seated bearing 64 or 57 is slidably installed in base 63 or base 56 through the guide rails and guide grooves. Positioning plates 70 or 61 are respectively installed and fixed at the lower end of base 63 or base 56. Bolts 69 or 60 are respectively screwed into the screw holes in the middle of positioning plates 70 or 61, and the upper ends of bolts 69 or 60 respectively press against the seated bearing 64 or 57. Except for existing multi-speed bicycles where the chain already has a tensioning device, other two-wheeled vehicles can be equipped with a tensioning device and a fastening device.

[0007] The gearbox also includes a clutch device for engaging or disengaging gear 37.

[0008] The clutch device includes a connecting rod 45, a hinge shaft 46, a rotating crank 47, a hinge support 55, a spring 48, a hinge shaft 49, and a spring 50. One end of the connecting rod 45 passes through the connecting hole of the gear shaft 42, and both ends of the portion passing through the gear shaft 42 are provided with stops. The other end of the connecting rod 45 is provided with a hinge hole. The shaft hole 53 is an elongated through hole with an opening on one side. The hinge support 55 is located on the opening side of the shaft hole 53. The rotating crank 47 is hinged to the hinge support 55 via the hinge shaft 49, and its crank end is provided with a hinge hole. This hinge hole and the hinge hole of the connecting rod 45 are connected via the hinge shaft 46. The spring 50 is mounted on the hinge shaft 49, and its two ends are respectively... The spring 48 is located on the inner rear part of the two hinge support plates of the hinge support 55 and the hinge support 55. The hinge 47 has a groove on the side of the hinge shaft 49 near the spring 48. The groove and the spring 48 are engaged to overcome the force of the spring 50 to push the connecting rod 45 in when the hinge 47 is rotated to pull out the connecting rod 45, thus achieving positioning. When it is necessary to push the connecting rod 45 in, the hinge 47 can be manually turned back. Pushing in the connecting rod 45 can make the gear 37 mesh with the gear 36 and the gear 38 respectively, thereby realizing transmission. Pulling out the connecting rod 45 can make the gear 37 disengage from the gear 36 and the gear 38, thereby disengaging the transmission.

[0009] The clutch device can also be configured as follows: it includes a rotary handle 71 and a positioning screw 72. The shaft hole 53 is an oblong hole, and a through screw hole 73 is provided on the side away from the semi-circular hole 51. The positioning screw 72 is provided at the center of the rotary handle 71. The positioning screw 72 is screwed into the screw hole 73 through the screw part. The other end of the positioning screw 72 is a light shaft. The light shaft passes through the connecting through hole of the gear shaft 42 and has a stop at the end to limit the movement. Rotating the rotary handle 71 screws into the drive gear shaft 42 so that the gear 37 meshes with the gear 36 and the gear 38 respectively, thereby realizing transmission. Rotating the rotary handle 71 pulls out the gear shaft 42 so that the gear 37 disengages from the gear 36 and the gear 38, thereby disengaging the transmission.

[0010] The clutch device can also be: including a push-pull rod 74, a spring 75, a flexible shaft 76, and a gear shifter 77. One end of the push-pull rod 74 passes through the connecting through hole of the gear shaft 42 and has stops at both ends of the through portion. The shaft hole 53 is an elongated hole. The other end of the push-pull rod 74 passes through the through hole provided in the base 39 and is fixedly connected to one end of the flexible shaft 76. The other end of the flexible shaft 76 is fixedly connected to the gear shifter 77, and the gear shifter 77 is mounted on the handlebar 33.

[0011] Gears 23, 24, 66, and 67 are bevel gears; gears 36, 37, and 38 are cylindrical gears; all couplings are universal joints; the seated bearing 5 is mounted on the rear lower fork 32, the seated bearings 9 and 11 are mounted on the lower tube 35, and the seated bearing 16 is mounted on the front fork.

[0012] The initial drive device also includes a protective cover 25 disposed on the base 18, and an end cover 22 or an end cover 28 disposed on the bearing 19 or the bearing 27 respectively; the gearbox also includes a protective cover 40 disposed on the base 39; the terminal driven device also includes a protective cover 68 disposed on the base 63, and an end cover 58 disposed on the bearing 57 or the bearing 64.

[0013] The beneficial effects of this invention are as follows: An initial drive device is provided at the rear wheel axle, using two gears with the same number of teeth, which can output the same speed and torque as the rear wheel; a gearbox is used, allowing the input and output shafts to reverse direction; a terminal driven device is provided at the front wheel, using two gears with the same number of teeth, which can input the same speed and torque as the rear wheel; the gearbox employs a clutch device, which can engage or disengage the gears on the input and output shafts, thus allowing people to choose between dual-drive or single-drive in different situations. Figure description:

[0014] Figure 1 Front view of the present invention

[0015] Figure 2 is a partially enlarged view of the present invention.

[0016] Figure 3. Front view of the base and bearing of the initial driving device of the present invention.

[0017] Figure 4. Cross-sectional view of the base and bearing EE of the initial drive device of the present invention.

[0018] Figure 5. Cross-sectional view of the initial driving device of the present invention.

[0019] Figure 6. Cross-sectional view of the initial driving device of the present invention (BB).

[0020] Figure 7. Enlarged partial view of the present invention (II)

[0021] Figure 8. View from direction C of the present invention (Technical solution one of the gearbox and its clutch device)

[0022] Figure 9 is a top view of the first technical solution of the gearbox and clutch device of the present invention.

[0023] Figure 10 Top view of the substrate of technical solution one of the gearbox and clutch device of the present invention.

[0024] Figure 11 is a stepped cross-sectional view of the base plate of the gearbox and clutch device of the present invention, according to technical solution one.

[0025] Figure 12 is a partial enlarged view of technical solution one of the gearbox and clutch device of the present invention (III).

[0026] Figure 13 D-direction view of the present invention

[0027] Figure 14 is a partial enlarged view of the terminal slave device of the present invention.

[0028] Figure 15 Cross-sectional view of the terminal slave device FF of the present invention

[0029] Figure 16 is a front view of the transmission shaft 14 of the present invention, which is a spline-type telescopic shaft.

[0030] Figure 17 H-H cross-sectional view of the present invention

[0031] Figure 18 shows a view of the invention from direction C (Technical solution two for the gearbox and its clutch device).

[0032] Figure 19 Top view of technical solution two of the gearbox and clutch device of the present invention.

[0033] Figure 20 Top view of the base plate of the second technical solution of the gearbox and clutch device of the present invention.

[0034] Figure 21 Cross-sectional view of the base plate stepped J-J of the second technical solution of the gearbox and clutch device of the present invention.

[0035] Figure 22 is a partial enlarged view of technical solution II of the gearbox and clutch device of the present invention (III).

[0036] Figure 23 shows a view from direction C of the present invention (Technical Solution 3 of the Gearbox and its Clutch Device).

[0037] Figure 24 is a partial enlarged view of the present invention IV (Technical solution three of the gearbox and its clutch device). Detailed implementation method:

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] In Figures 1, 2, 8, and 13, a dual-drive two-wheeled vehicle includes a frame 1, a rear wheel 2, and a front wheel 3. The vehicle is characterized by having an initial drive device at the axle of the rear wheel 2, a gearbox at the frame 1, a terminal driven device at the axle of the front wheel 3, and an intermediate transmission device on the frame 1.

[0040] In Figures 2-6, the initial drive device includes a base 18, a seated bearing 19, a drive shaft 29, a gear 23, a gear 24, a base 26, a seated bearing 27, and a seated bearing 31. The base 18 is fixed to one end of the rear upper fork and rear lower fork 32 of the frame, and the seated bearing 19 is provided on the base 18. The base 26 is fixed to the other end of the rear upper fork and rear lower fork 32, and the seated bearing 27 is provided on the base 26. Both ends of the drive shaft 29 are installed in the seated bearings 19 and 27. The sprocket 30 is installed on the drive shaft 29, and an overrunning clutch is provided between the sprocket 30 and the drive shaft 29 (Figure 2). (Not shown in the image), gear 23 is mounted on one end of drive shaft 29. A seated bearing 31 is provided on base 18. The rear end of drive shaft 4 is mounted in the seated bearing 31, and gear 24 is mounted on its end. Gear 23 and gear 24 mesh, and gear 23 and gear 24 are bevel gears. In Figures 7-12, the gearbox includes base 39, gear shaft 41, gear shaft 42, gear shaft 43, gear 36, gear 37, and gear 38. Base 39 is mounted on head tube 34 below handlebar 33 via semi-circular opening 51 and clamp 44. Base 39 has shaft holes 52, 53, and 54. Gear shaft 41 is installed in shaft hole 52 and its lower end is fixed to the upper end of coupling 12, and gear 36 is fixed to its upper end. Gear shaft 42 is installed in shaft hole 53 and gear 37 is installed on its upper end. Gear shaft 43 is installed in shaft hole 54 and gear 38 is fixed to its upper end, and its lower end is fixed to the upper end of coupling 13. Gears 36, 37, and 38 are cylindrical gears. In Figures 13 to 15, the terminal driven device includes base 63, seated bearing 64, seated bearing 65, gear 66, gear 67, terminal driven shaft 59, base 56, and seated bearing 57. Base 63 is fixed to the front fork. At one end, a base 63 is provided with a seated bearing 64, and a base 56 is fixed to the other end of the front fork. A seated bearing 57 is provided on the base 56. The two ends of the terminal driven shaft 59 are installed in the seated bearings 64 and 57. The hub 62 is installed on the terminal driven shaft 59 and an overrunning clutch (not shown in the figure) is provided between them. The gear 67 is installed at one end of the terminal driven shaft 59. A seated bearing 65 is provided on the base 63. The lower end of the drive shaft 17 is installed in the seated bearing 65 and a gear 66 is installed at its end. The gears 66 and 67 mesh. The gears 66 and 67 are bevel gears.In Figures 1, 6, 7, 13, 16, and 17, the intermediate transmission device includes drive shafts 4, 7, 10, 14, and 17; couplings 6, 8, 12, 13, and 15; and bearings 5, 9, 11, and 16. The bearing 5 is mounted on the rear lower fork 32. The front end of drive shaft 4 is mounted in the bearing 5 and its end is fixed to the rear end of coupling 6. The rear end of drive shaft 7 is fixed to the front end of coupling 6, and the front end of drive shaft 7 is fixed to the coupling. At the rear end of coupling 8, mounted bearings 9 and 11 are installed on the lower tube 35. The rear end of drive shaft 10 is installed in mounted bearing 9 and its end is fixed to the front end of coupling 8; its front end is installed in mounted bearing 11 and its end is fixed to the lower end of coupling 12. The upper end of drive shaft 14 is fixed to the lower end of coupling 13, and its lower end is fixed to the upper end of coupling 15. Drive shaft 14 is a splined telescopic shaft. Mounted bearing 16 is installed on the front fork. The upper end of drive shaft 17 is installed in mounted bearing 16 and its end is fixed to the lower end of coupling 15. All couplings are universal joints. The mounted bearings can be mounted ball bearings or mounted roller bearings; in this embodiment, mounted ball bearings are preferred. In Figures 1, 2, 3, and 6, the initial drive device further includes a tensioning device, which includes a screw 20 and a tensioning plate 21. One end of the screw 20 is fixed to the rear end of the seated bearing 19 or the seated bearing 27. The tensioning plate 21 is installed at the rear end of the base 18 or the base 26. In this embodiment, the tensioning plate 21 is screw-mounted. The other end of the screw 20 passes through the tensioning plate 21 and a nut is installed at that end. The seated bearing 19 or the seated bearing 27 slides freely in the guide grooves provided on the upper and lower sides of the base 18 or the base 26 via guide rails provided on the upper and lower sides, respectively, to tension the chain. The seated bearing is a seated ball bearing or a seated roller bearing; in this embodiment, both are seated ball bearings. In Figures 1, 13, and 14, the terminal driven device... The device also includes a fastening mechanism, comprising a positioning plate 70 or 61 and bolts 69 or 60, located at the lower end of the base 63 or 56. Guide rails are provided on both the front and rear sides of the seated bearing 64 or 57. Guide grooves are provided on the inner sides of the two lower arms of the base 63 or 56, corresponding to the guide rails of the seated bearing 64 or 57. The seated bearing 64 or 57 is slidably installed within the base 63 or 56 via the guide rails and guide grooves. The positioning plate 70 or 61 is fixedly installed at the lower end of the base 63 or 56. Bolts 69 or 60 are screwed into the threaded holes in the middle of the positioning plate 70 or 61, with the upper ends of the bolts 69 or 60 pressing against the seated bearing 64 or 57. Except for existing multi-speed bicycles where the chain already has a tensioning device, other two-wheeled vehicles can be equipped with both a tensioning device and a fastening mechanism.

[0041] The gearbox also includes a clutch device for engaging or disengaging gear 37. In Figures 8-12, the preferred embodiment of the clutch device includes a connecting rod 45, a hinge shaft 46, a crank 47, a hinge support 55, a spring 48, a hinge shaft 49, and a spring 50. One end of the connecting rod 45 passes through the connecting hole of the gear shaft 42, and both ends of the portion passing through the gear shaft 42 are provided with stops. The other end of the connecting rod 45 has a hinge hole. The shaft hole 53 is an elongated through hole with an opening on one side. The hinge support 55 is located on the opening side of the shaft hole 53. The crank 47 is hinged to the hinge support 55 via the hinge shaft 49, and its crank end has a hinge hole. This hinge hole and the hinge hole of the connecting rod 45 are connected via the hinge shaft 46. The spring 50 is a torsion spring and is mounted on the hinge shaft 48. 9. The two ends of the crank are respectively locked onto the hinge support 55 and the crank 47. The spring 48 is a small leaf spring and is located on the rear inner side of the two hinge support plates of the hinge support 55. The crank 47 has a groove on the side of the hinge shaft 49 that is close to the spring 48. The groove and the spring 48 are engaged to overcome the force of the spring 50 to push the connecting rod 45 into place when the crank 47 is rotated to pull out the connecting rod 45. When it is necessary to push the connecting rod 45 in, the crank 47 can be manually turned back. Pushing in the connecting rod 45 can make the gear 37 mesh with the gear 36 and the gear 38 respectively, thereby realizing transmission. Pulling out the connecting rod 45 can make the gear 37 disengage from the gear 36 and the gear 38, thereby disengaging the transmission. In Figures 18-22, the clutch device can also be made as follows: it includes a rotary handle 71 and a positioning screw 72. The shaft hole 53 is an oblong hole, and a through screw hole 73 is provided on the side away from the semi-circular hole 51. The positioning screw 72 is provided at the center of the rotary handle 71. The positioning screw 72 is screwed into the screw hole 73 through the screw part. The other end of the positioning screw 72 is a light shaft. The light shaft passes through the connecting through hole of the gear shaft 42 and has a stop at the end to limit the movement. Rotating the rotary handle 71 screws into the drive gear shaft 42 so that the gear 37 meshes with the gear 36 and the gear 38 respectively, thereby realizing transmission. Rotating the rotary handle 71 pulls out the gear shaft 42 so that the gear 37 disengages from the gear 36 and the gear 38, thereby disengaging the transmission. In Figures 23 and 24, the clutch device can also be made as follows: it includes a push-pull rod 74, a spring 75, a flexible shaft 76, and a gear shifter 77. One end of the push-pull rod 74 passes through the connecting through hole of the gear shaft 42, and its passing part is provided with stops at both ends. The shaft hole 53 is an elongated hole. The spring 75 is a compression spring, which is sleeved on the push-pull rod 74, and its two ends respectively abut against the near stop of the push-pull rod 47 and the side of the shaft hole 53 near the flexible shaft 76. The other end of the push-pull rod 74 passes through the through hole provided in the base 39 and is fixedly connected to one end of the flexible shaft 76. The other end of the flexible shaft 76 is fixedly connected to the gear shifter 77, and the gear shifter 77 is mounted on the handlebar 33.

[0042] The initial drive device may further include a protective cover 25 on the base 18, and end caps 22 or 28 respectively disposed on the bearing 19 or bearing 27; the gearbox may further include a protective cover 40 disposed on the base 39; the terminal driven device may further include a protective cover 68 disposed on the base 63, and end caps 58 disposed on the bearing 57 or bearing 64; the protective cover and end caps are thin metal sheets or plastic parts, and in this embodiment they are thin metal sheets.

[0043] In this invention, when the rear wheel receives rotational power, it synchronously drives a bevel gear that outputs power via a drive shaft. The bevel gear, through an intermediate transmission device, transmits the same speed and torque to a driven terminal, which in turn drives the front wheel. This achieves dual-wheel drive. A clutch mechanism in the gearbox allows the rider to select between single-wheel and dual-wheel drive. This dual-wheel drive technology can be used not only on two-wheeled vehicles but also on three-wheeled vehicles to drive the front wheel.

Claims

1. A two-wheeled vehicle with dual drive, comprising a frame (1), a rear wheel (2), and a front wheel (3), characterized in that: An initial drive device is provided at the rear wheel (2) axle, a gearbox is provided at the frame (1), a terminal driven device is provided at the front wheel (3) axle, and an intermediate transmission device is provided on the frame (1).

2. The dual-drive two-wheeled vehicle according to claim 1, characterized in that: The initial drive unit includes a base (18), a seated bearing (19), a drive shaft (29), a gear (23), a gear (24), a base (26), a seated bearing (27), and a seated bearing (31). The base (18) is fixed to one end of the rear upper fork and rear lower fork (32) of the frame. The base (18) is provided with a seated bearing (19). The base (26) is fixed to the other end of the rear upper fork and rear lower fork (32). The base (26) is provided with a seated bearing (27). Both ends of the drive shaft (29) are installed in the seated bearings (19) and (27). The sprocket (30) is installed on the drive shaft (29). Gear (23) is installed at one end of drive shaft (29). A seated bearing (31) is provided on base (18). The rear end of drive shaft (4) is installed in the seated bearing (31) and a gear (24) is installed at its end. Gear (23) and gear (24) mesh. The gearbox includes base (39), gear shaft (41), gear shaft (42), gear shaft (43), gear (36), gear (37), and gear (38). Base (39) is installed on head tube (34) at the lower part of handlebar (33) through semi-circular opening (51) and clamp (44). Base (39) is provided with shaft hole (52) and shaft hole (53). A shaft hole (54) is provided, a gear shaft (41) is installed in the shaft hole (52) and its lower end is fixed to the upper end of the coupling (12), and a gear (36) is fixed to its upper end. A gear shaft (42) is installed in the shaft hole (53) and a gear (37) is installed at its upper end. A gear shaft (43) is installed in the shaft hole (54) and a gear (38) is fixed to its upper end, and the upper end of the coupling (13) is fixed to its lower end. The terminal driven device includes a base (63), a seated bearing (64), a seated bearing (65), a gear (66), a gear (67), a terminal driven shaft (59), a base (56), a seated bearing (57), and a base (64). 3) A base (63) is fixed to one side of the end of the front fork. A seated bearing (64) is provided on the base (63). A base (56) is fixed to the other side of the end of the front fork. A seated bearing (57) is provided on the base (56). The two ends of the terminal driven shaft (59) are installed in the seated bearing (64) and the seated bearing (57). The hub (62) is installed on the terminal driven shaft (59). The gear (67) is installed at one end of the terminal driven shaft (59). A seated bearing (65) is provided on the base (63). The lower end of the drive shaft (17) is installed in the seated bearing (65) and a gear (66) is installed at its end. The gear (66) and the gear (67) mesh.The intermediate transmission device includes a drive shaft (4), a drive shaft (7), a drive shaft (10), a drive shaft (14), a drive shaft (17), a coupling (6), a coupling (8), a coupling (12), a coupling (13), a coupling (15), a seated bearing (5), a seated bearing (9), a seated bearing (11), and a seated bearing (16). The front end of the drive shaft (4) is installed in the seated bearing (5) and its end is fixed to the rear end of the coupling (6). The rear end of the drive shaft (7) is fixed to the front end of the coupling (6), and the front end of the drive shaft (7) is fixed to the rear end of the coupling (8). 10) The rear end is installed in the seated bearing (9) and its end is fixed to the front end of the coupling (8). Its front end is installed in the seated bearing (11) and its end is fixed to the lower end of the coupling (12). The upper end of the drive shaft (14) is fixed to the lower end of the coupling (13), and its lower end is fixed to the upper end of the coupling (15). The drive shaft (14) is a splined telescopic shaft. The upper end of the drive shaft (17) is installed in the seated bearing (16) and its end is fixed to the lower end of the coupling (15). The seated bearings (5), (9), (11), and (16) are all mounted on the frame.

3. The dual-drive two-wheeled vehicle according to claim 2, characterized in that: The initial drive device further includes a tensioning device, which includes a screw (20) and a tensioning plate (21). One end of the screw (20) is fixed to the rear end of a seated bearing (19) or a seated bearing (27). The tensioning plate (21) is installed at the rear end of a base (18) or a base (26). The other end of the screw (20) passes through the tensioning plate (21) and a nut is installed at that end. The seated bearing (19) or the seated bearing (27) slides freely in the guide grooves provided on the upper and lower sides of the base (18) or the base (26) via guide rails provided on the upper and lower sides, respectively, to tension the chain. The terminal driven device further includes a fastening device, which includes a positioning plate (70) or a positioning plate (61) and a bolt (69) or a bolt (60), and is set on the base ( At the lower end of the base (63) or base (56), guide rails are provided on the front and rear sides of the seated bearing (64) or seated bearing (57). Guide grooves are provided on the inner sides of the two lower arms of the base (63) or base (56) respectively corresponding to the guide rails of the seated bearing (64) or seated bearing (57). The seated bearing (64) or seated bearing (57) is slidably installed in the base (63) or base (56) through the guide rails and guide grooves. The positioning plate (70) or positioning plate (61) is installed and fixed at the lower end of the base (63) or base (56). The bolt (69) or bolt (60) is screwed into the screw hole in the middle of the positioning plate (70) or positioning plate (61). The upper end of the bolt (69) or bolt (60) presses the seated bearing (64) or seated bearing (57) respectively.

4. A dual-drive two-wheeled vehicle according to claim 2 or 3, characterized in that: The gearbox also includes a clutch device for engaging or disengaging the gears (37).

5. A dual-drive two-wheeled vehicle according to claim 4, characterized in that: The clutch device includes a connecting rod (45), a hinge shaft (46), a rotating crank (47), a hinge support (55), a spring (48), a hinge shaft (49), and a spring (50). One end of the connecting rod (45) passes through the connecting hole of the gear shaft (42), and both ends of the portion passing through the gear shaft (42) are provided with stops. The other end of the connecting rod (45) is provided with a hinge hole. The shaft hole (53) is a long through hole with an opening on one side facing outwards. The hinge support (55) is located on the opening side of the shaft hole (53). The rotating crank (47) is hinged to the hinge support (55) through the hinge shaft (49). Its crank end is provided with a hinge hole. This hinge hole and the connecting rod ( The hinge hole of 45) is connected through the hinge shaft (46). The spring (50) is installed on the hinge shaft (49) and its two ends are respectively locked on the hinge support (55) and the rotating crank (47). The spring (48) is set on the inner rear part of the two hinge support plates of the hinge support (55). The rotating crank (47) has a groove on the side of the hinge shaft (49) that is close to the spring (48). The groove and the spring (48) are engaged to overcome the force of the spring (50) to automatically push the connecting rod (45) out when the rotating crank (47) is rotated to pull out the connecting rod (45) and thus achieve positioning. When the connecting rod (45) is pushed in, the rotating crank (47) can be manually turned back.

6. A dual-drive two-wheeled vehicle according to claim 4, characterized in that: The clutch device includes a rotary handle (71) and a positioning screw (72). The shaft hole (53) is an oblong hole, and a through screw hole (73) is provided on the side away from the semi-circular hole (51). The center of the rotary handle (71) is provided with a positioning screw (72). The positioning screw (72) is screwed into the screw hole (73) through the screw part. The other end of the positioning screw (72) is a light shaft. The light shaft passes through the connecting through hole of the gear shaft (42) and is provided with a stop at the end to play a limiting role.

7. A dual-drive two-wheeled vehicle according to claim 4, characterized in that: The clutch device includes a push-pull rod (74), a spring (75), a flexible shaft (76), and a gear shifter (77). One end of the push-pull rod (74) passes through the connecting through hole of the gear shaft (42), and the part passing through it is provided with stops at both ends. The shaft hole (53) is an elongated hole. The other end of the push-pull rod (74) passes through the through hole provided in the base (39) and is fixedly connected to one end of the flexible shaft (76). The other end of the flexible shaft (76) is fixedly connected to the gear shifter (77), and the gear shifter (77) is mounted on the handlebar (33).

8. A dual-drive two-wheeled vehicle according to claim 2, characterized in that: The gears (23), (24), (66), and (67) are bevel gears; the gears (36), (37), and (38) are cylindrical gears; the couplings are all universal joints; the seated bearing (5) is mounted on the rear lower fork (32), the seated bearings (9) and (11) are mounted on the lower tube (35), and the seated bearing (16) is mounted on the front fork.

9. A dual-drive two-wheeled vehicle according to claim 2 or 3, characterized in that: The initial drive device also includes a protective cover (25) disposed on the base (18), and end caps (22) or (28) respectively disposed on the bearing (19) or bearing (27). ； The gearbox also includes a cover (40) disposed on the base (39); the terminal driven device also includes a cover (68) disposed on the base (63) and an end cap (58) disposed on the seated bearing (57) or the seated bearing (64).

10. A dual-drive two-wheeled vehicle according to claim 4, characterized in that: The initial drive device also includes a protective cover (25) disposed on the base (18), and end caps (22) or (28) respectively disposed on the bearing (19) or bearing (27). ； The gearbox also includes a cover (40) disposed on the base (39); the terminal driven device also includes a cover (68) disposed on the base (63) and an end cap (58) disposed on the seated bearing (57) or the seated bearing (64).

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