CN217835934U

CN217835934U - Vehicle transmission system and electric two-wheeled vehicle with same

Info

Publication number: CN217835934U
Application number: CN202220507844.5U
Authority: CN
Inventors: 易庆宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-11-18
Anticipated expiration: 2032-03-07

Abstract

The embodiment of the utility model provides a wheel transmission system and have its electric two wheeler, this wheel transmission system include wheel, shaft, drive gear group and motor, drive gear group include first gear and with the second gear that first gear power links to each other, the wheel set up in epaxial, the motor with the shaft links to each other, first gear as output gear with the motor links to each other, the second gear do for input gear with the wheel links to each other, first gear with the non-coaxial setting of shaft, the rotational speed of motor is higher than the rotational speed of wheel, the motor passes through first gear reaches the second gear with power transmission extremely the wheel. The wheel transmission system is simple in structure, low in cost and high in efficiency.

Description

Vehicle transmission system and electric two-wheeled vehicle with same

Technical Field

The utility model belongs to the technical field of electric two wheeler technique and specifically relates to an electric two wheeler driving system and have its electric two wheeler.

Background

At present, the electric two-wheeled vehicle mainly adopts a power system comprising a hub motor for direct transmission, a high-rotation-speed motor matched with a speed reducer and a chain or a belt for transmission. The direct transmission mode of the hub motor is limited by using conditions, the rotating speed of the motor is generally low and is the same as that of a wheel, the rotating speed of the motor is low, the size is large, the cost is high, and the cost of a power transmission part is difficult to reduce.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vehicle transmission system and have its electric two wheeler, this wheel transmission system simple structure, low cost, efficiency are higher.

The embodiment of the utility model provides a wheel transmission system, including wheel, shaft, drive gear group and motor, drive gear group include first gear and with the second gear that first gear power links to each other, the wheel set up in epaxial in the wheel, the motor with the shaft links to each other, first gear as output gear with the motor links to each other, the second gear do input gear with the wheel links to each other, first gear with the non-coaxial setting of shaft, the rotational speed of motor is higher than the rotational speed of wheel, the motor passes through first gear reaches the second gear with power transmission extremely the wheel.

Further, the transmission gear set further comprises a third gear, and the third gear is arranged between the first gear and the second gear.

Further, the rim is integrated with the spokes, and the second gear is fixed to the wheel.

Furthermore, the wheel axle is used for being fixedly connected with the vehicle body, the wheels are rotatably arranged on the wheel axle, and the motor is fixed on the wheel axle.

Further, the wheel shaft is used for being fixedly connected with a vehicle body, the wheels are rotatably arranged on the wheel shaft, and the motor is fixed on the vehicle body or fixed on the vehicle body and the wheel shaft simultaneously.

Furthermore, a concave part is formed on the wheel shaft, the motor is fixed in the concave part, the wheel is rotatably sleeved outside the wheel shaft, and the axis of the first gear connected with the motor and the axis of the wheel shaft connected and contacted with the wheel are parallel to each other.

Furthermore, the wheel shaft comprises a first half shaft and a second half shaft, one end of the first half shaft is fixedly connected with the vehicle body, the other end of the first half shaft is connected with one side of the motor, one end of the second half shaft is fixedly connected with the vehicle body, the other end of the second half shaft is connected with the other side of the motor, the wheel is rotatably sleeved on the first half shaft, and the axis of the first gear and the axis of the wheel shaft are arranged in a non-coaxial mode.

Furthermore, the wheel shaft is used for being fixed with a vehicle body, the wheel shaft comprises a first connecting rod, a second connecting rod and a third connecting rod, the axes of the first connecting rod and the third connecting rod are parallel to each other, the second connecting rod is connected between the first connecting rod and the third connecting rod, the wheels are rotatably arranged on the first connecting rod, and the motor is fixed on the second connecting rod.

Furthermore, the wheel transmission system comprises an auxiliary gear, a supporting shaft of the auxiliary gear is fixed on a fixing piece fixed relative to the vehicle body, the auxiliary gear and the first gear are meshed with the same gear, and on the same section perpendicular to the wheel shaft, meshing points of the auxiliary gear, the first gear and the second gear are located on the same circle.

The utility model also provides an electric two wheeler, including foretell wheel transmission system.

To sum up, the utility model discloses in, through setting up the motor in the shaft to make the motor pass through first gear and second gear with power transmission to wheel, accomplish the transmission of power, this can adopt higher rotational speed motor, make simple structure, low cost, efficiency higher.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a wheel transmission system according to a first embodiment of the present invention.

Fig. 2 is a schematic structural view of fig. 1 with the motor removed.

Fig. 3 is a schematic structural diagram of a wheel transmission system according to a second embodiment of the present invention.

Fig. 4 is a schematic view of the structure of fig. 3 with the end cap removed.

Fig. 5 is a schematic structural diagram of a wheel transmission system according to a third embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a wheel transmission system according to a fourth embodiment of the present invention.

Fig. 7 is a schematic view of the structure of fig. 6 with the motor removed.

Fig. 8 is a schematic structural diagram of a wheel transmission system according to a fifth embodiment of the present invention.

Fig. 9 is a schematic view of the structure of fig. 8 with the motor removed.

Fig. 10 is a schematic structural diagram of a wheel transmission system according to a sixth embodiment of the present invention.

Fig. 11 is a schematic view of the structure of fig. 10 with the motor removed.

Fig. 12 is a schematic structural diagram of a wheel transmission system according to a seventh embodiment of the present invention.

Fig. 13 is a schematic view of the structure of fig. 11 with the motor removed.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

Fig. 1 is a schematic structural diagram of a wheel transmission system according to a first embodiment of the present invention, and fig. 2 is a schematic structural diagram of fig. 1 with a motor housing removed. As shown in fig. 1 and 2, the wheel transmission system provided by the first embodiment of the present invention includes a wheel 10, a wheel axle 20, a transmission gear set and a motor 30, wherein the transmission gear set includes a first gear 41 and a second gear 42 connected with the first gear 41, the wheel 10 is disposed on the wheel axle 20, the motor 30 is connected with the wheel axle 20, the first gear 41 is connected with an output shaft of the motor 30 as an output gear, and the second gear 42 is connected with the wheel 10 as an input gear. The first gear 41 is disposed non-coaxially with the wheel shaft 20, the rotation speed of the motor 30 is higher than that of the wheel 10, and the motor 30 transmits power to the wheel 10 through the first gear 41 and the second gear 42.

In the embodiment, the motor 30 is disposed on the wheel axle 20, the first gear 41 is disposed non-coaxially with the wheel axle 20, and the motor 30 transmits power to the wheel 10 through the first gear 41 and the second gear 42 to complete power transmission, which can adopt the motor 30 with a high rotation speed, so that the structure is simple, the cost is low, and the efficiency is high.

With continued reference to fig. 1 and 2, the axle 20 is adapted to be fixedly connected to the vehicle body, and the wheel 10 is rotatably supported on the axle 20 by a member such as a bearing. In this embodiment, the wheel 10 may be provided without end caps, and the rim and spokes of the wheel 10 may be integrated.

As shown in fig. 1 and 2, the motor 30 is fixed to the wheel shaft 20 by a motor fixing frame 31. In order to clearly show the above structure, the motor 30 is omitted in fig. 2, and only the first gear 41 is shown.

In the present embodiment, the first gear 41 and the second gear 42 are external gears, and they are meshed with each other. It will be appreciated that in other embodiments, the first gear 41 may be an external gear and the second gear 42 may be an internal gear.

Further, in order to optimize the transmission path of the power, a third gear (not shown) may be disposed between the first gear 41 and the second gear 42.

In other embodiments, the first gear 41 and the second gear 42 may be elliptical gears or non-circular gears. The motor 30 may also be directly a motor 30 with a reduction gear.

Fig. 3 is a schematic structural diagram of a wheel transmission system according to a second embodiment of the present invention, and fig. 4 is a schematic structural diagram of fig. 3 with an end cover removed. As shown in fig. 3 and 4, the second embodiment of the present invention is substantially the same as the other embodiments, except that in this embodiment, the wheel 10 includes a rim 11 and end covers 12 located at two sides of the rim 11, the end covers 12 and the rim 11 together enclose an accommodating space, the motor 30, the first gear 41 and the second gear 42 are all disposed in the accommodating space, and the second gear 42 is fixed to one of the end covers 12.

Fig. 5 is a schematic structural diagram of a wheel transmission system according to a third embodiment of the present invention. As shown in fig. 5, in the present embodiment, the motor 30 is fixed to a vehicle body, such as a rear fork 50 of the vehicle body, or fixed to both the wheel axle 20 and the vehicle body through the motor fixing frame 30, so as to improve the stability of the motor 30. The axle 20 is not drivingly fixed to the vehicle body, and the wheel 10 is rotatably fitted over the axle 20.

Fig. 6 is a schematic structural diagram of a wheel transmission system according to a fourth embodiment of the present invention, and fig. 7 is a schematic structural diagram of fig. 6 with a motor removed. As shown in fig. 6 and 7, the output shaft of the motor 30 is retained in fig. 7 for easy understanding. In the above embodiments, the axle 20 is of an integral structure and the axis thereof is a straight line, and as shown in fig. 6 and 7, the present invention provides a fourth embodiment which is substantially the same as the above embodiments, except that a recess 21 is formed on the axle 20, and the motor 30 is fixed in the recess 21 of the axle 20 through the motor fixing frame 31. At this time, the wheel 10 is rotatably sleeved outside the wheel axle 20. The axis of the first gear 41 connected to the motor 30 and the axis of the wheel axle 20 where the wheel 10 is connected are parallel to each other. The motor 30 transmits power to the second gear 42 through the first gear 41.

In fig. 7, the first gear 41 is shown directly in mesh with the second gear 42, which in other embodiments may also mesh with each other via a third gear.

Fig. 8 is a schematic structural diagram of a wheel transmission system according to a fifth embodiment of the present invention, and fig. 9 is a schematic structural diagram of fig. 8 with the motor removed. As shown in fig. 8 and 9, in the present embodiment, the wheel axle 20 includes a first half shaft 22 and a second half shaft 23, the axes of the first half shaft 22 and the second half shaft 23 are located on the same straight line, one end of the first half shaft 22 is fixedly connected to the vehicle body, the other end is connected to one side of the motor 30, one end of the second half shaft 23 is fixedly connected to the vehicle body, and the other end is connected to the other side of the motor 30.

In the embodiment, the wheel 10 is rotatably sleeved on the first half shaft 22, and the ends of the first half shaft 22 and the second half shaft 23 away from the vehicle body are respectively connected to two sides of the housing of the motor 30. The axis of the first gear 41 is not collinear with the axis of the axle 20.

Fig. 10 is a schematic structural view of a wheel transmission system according to a sixth embodiment of the present invention, and fig. 11 is a schematic structural view of fig. 10 with a motor removed. As shown in fig. 10 to 11, in the present embodiment, the axle 20 is used to fix the vehicle body, the axle 20 is in a zigzag shape, and includes a first connecting rod 24, a second connecting rod 25 and a third connecting rod 26, axes of the first connecting rod 24 and the third connecting rod 26 are parallel to each other, the second connecting rod 25 is connected between the first connecting rod 24 and the third connecting rod 26, the wheel 10 is rotatably sleeved on the first connecting rod 24, and the motor 30 is fixed on the second connecting rod 25 through a motor fixing frame 31.

Fig. 12 is a schematic structural view of a wheel transmission system according to a seventh embodiment of the present invention, and fig. 13 is a schematic structural view of fig. 11 with a motor removed. As shown in fig. 12 and 13, a wheel transmission system according to a seventh embodiment of the present invention is substantially the same as the above-described embodiment, except that in this embodiment, an auxiliary gear 43 may be further provided, and a support shaft of the auxiliary gear 43 is fixed to a fixing member fixed to a vehicle body. In the present embodiment, it is shown that the support shaft of the auxiliary gear 43 is fixed to the housing of the motor 30 when the motor 30 is fixed to the wheel axle 20 or the vehicle body. The auxiliary gear 43 and the first gear 41 are engaged with the same gear, and in this embodiment, both the auxiliary gear 43 and the first gear 41 are engaged with the second gear 42. It will be appreciated that the auxiliary gear 43 may also mesh with the third gear when the first gear 41 transmits power to the second gear 42 through the third gear, i.e. the first gear 41 meshes with the third gear. The number of the auxiliary gears 43 may be one or more, such as two. On the same cross section perpendicular to the axle 20, the auxiliary gear 43 and the meshing points of the first gear 41 and the second gear 42 are located on the same circle. By providing the auxiliary gear 43, the auxiliary gear 43 and the first gear 41 can support the gears, such as the second gear 42 and the third gear, which are engaged with the first gear 41, together, so that the power transmission is more smooth.

In conclusion, in the utility model discloses in, through setting up motor 30 on shaft 20, and make first gear 41 and the non-coaxial setting of shaft 20 to make motor 30 pass through first gear 41 and second gear 42 with power transmission to wheel 10, accomplish the transmission of power, this can adopt the motor 30 of higher rotational speed, make simple structure, low cost, efficiency higher.

The utility model also provides an electric two wheeler, this electric two wheeler include foretell wheel transmission system, about other technical characteristics of this electric two wheeler, please see prior art, no longer give consideration to here.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent changes without departing from the technical scope of the present invention.

Claims

1. A wheel transmission system characterized by: the wheel transmission mechanism comprises wheels, a wheel shaft, a transmission gear set and a motor, wherein the transmission gear set comprises a first gear and a second gear in power connection with the first gear, the wheels are arranged on the wheel shaft, the motor is connected with the wheel shaft, the first gear is connected with the motor as an output gear, the second gear is connected with the wheels as an input gear, the first gear and the wheel shaft are arranged in a non-coaxial mode, the rotating speed of the motor is higher than that of the wheels, and the motor transmits power to the wheels through the first gear and the second gear.

2. A wheel transmission system according to claim 1, wherein: the transmission gear set further comprises a third gear, and the third gear is arranged between the first gear and the second gear.

3. A wheel transmission system according to claim 1, wherein: the rim and the spoke are integrated into a whole, and the second gear is fixed on the wheel.

4. A wheel transmission system according to claim 1, wherein: the wheel comprises a rim and end covers positioned at two ends of the rim, the end covers and the rim jointly enclose an accommodating space, the motor, the first gear and the second gear are arranged in the accommodating space, and the second gear is fixed on one of the end covers.

5. A wheel transmission system according to claim 1, wherein: the wheel shaft is of an integrated structure, the axis of the wheel shaft is a straight line, the wheel shaft is used for being fixedly connected with a vehicle body, the wheels are rotatably arranged on the wheel shaft, and the motor is fixed on the wheel shaft.

6. A wheel transmission system according to claim 1, wherein: the wheel shaft is of an integrated structure, the axis of the wheel shaft is a straight line, the wheel shaft is used for being fixedly connected with a vehicle body, the wheels are rotatably arranged on the wheel shaft, and the motor is fixed on the vehicle body or both the vehicle body and the wheel shaft.

7. A wheel transmission system according to claim 1, wherein: the wheel shaft is provided with a concave part, the motor is fixed in the concave part, the wheel is rotatably sleeved outside the wheel shaft, and the axis of the first gear connected with the motor and the axis of the wheel shaft connected and contacted with the wheel are parallel to each other.

8. A wheel transmission system according to claim 1, wherein: the wheel shaft comprises a first half shaft and a second half shaft, one end of the first half shaft is fixedly connected with the vehicle body, the other end of the first half shaft is connected with one side of the motor, one end of the second half shaft is fixedly connected with the vehicle body, the other end of the second half shaft is connected with the other side of the motor, the wheel is rotatably sleeved on the first half shaft, and the axis of the first gear and the axis of the wheel shaft are arranged in a non-coaxial mode.

9. A wheel transmission system according to claim 1, wherein: the wheel shaft is used for being fixed with a vehicle body, the wheel shaft comprises a first connecting rod, a second connecting rod and a third connecting rod, the axes of the first connecting rod and the third connecting rod are parallel to each other, the second connecting rod is connected between the first connecting rod and the third connecting rod, the wheels are rotatably arranged on the first connecting rod, and the motor is fixed on the second connecting rod.

10. A wheel transmission system according to claim 1, wherein: the wheel transmission system comprises an auxiliary gear, a supporting shaft of the auxiliary gear is fixed on a fixing piece fixed relative to the vehicle body, the auxiliary gear and the first gear are meshed with the same gear, and on the same cross section perpendicular to the wheel shaft, meshing points of the auxiliary gear, the first gear and the second gear are located on the same circle.

11. An electric two-wheeled vehicle, characterized in that: an electric two-wheeled vehicle powertrain comprising any one of claims 1 to 10.