Driving mechanism and electric bicycle

Abstract

The utility model relates to the technical field of electric bicycles, in particular to a driving mechanism and an electric bicycle, and the driving mechanism comprises a driving shaft which is horizontally arranged, and one end of the driving shaft is provided with a flywheel; the transmission shell covers the middle part of the driving shaft, an accommodating space is formed in the transmission shell, and a transmission part is arranged in the accommodating space; and the driving motor is fixedly arranged on the transmission shell and is in transmission connection with the transmission part, and the transmission part is in transmission connection with the driving shaft and drives the driving shaft to rotate. According to the driving mechanism, the driving shaft, the transmission shell and the driving motor are arranged, and the driving motor, the transmission component and the driving shaft are arranged together and are reasonably configured, so that the structure of the driving mechanism can be simplified, and meanwhile, the transmission efficiency is improved. The design of the transmission shell not only can protect internal transmission parts, but also can provide stable structural support. The weight of the electric bicycle can be reduced, light weight is achieved, and the overall operation experience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycles, in particular to a driving mechanism and an electric bicycle. Background Art

[0002] In recent years, traffic jams have become increasingly serious. Factors such as fuel, environment and venues have restricted cars from becoming a popular means of transportation in the short term. Electric bicycles are widely used due to their low cost, convenient parking, no impact from traffic jams and relatively low prices. Becoming an ideal green means of transportation is undoubtedly an important development direction for solving the daily transportation problems of urban residents. At the same time, people are paying more and more attention to the environment and quality of life on which they depend for survival. Major cities have proposed measures such as improving air purification standards, reducing emissions and reducing air pollution. Pollution-free electric bicycles have become the main solution.

[0003] Current electric bicycles can be divided into electric-driven and pedal-driven electric bicycles and pure electric-driven electric bicycles according to different power drives. Existing electric-driven and pedal-driven electric bicycles have complex driving mechanisms and are heavy, and cannot be lightweight.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The utility model provides a driving mechanism and an electric bicycle, thereby effectively solving the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a driving mechanism, comprising:

[0007] A drive shaft, the drive shaft is arranged horizontally and a flywheel is arranged at one end thereof;

[0008] A transmission housing, the transmission housing covering the middle part of the drive shaft, the transmission housing comprising a containing space, and the transmission component is arranged in the containing space;

[0009] A driving motor is fixedly disposed on the transmission housing and is drivingly connected to the transmission component. The transmission component is drivingly connected to the driving shaft to drive the driving shaft to rotate.

[0010] Furthermore, the transmission housing is provided with a mounting flange at one end perpendicular to the drive shaft, and the drive motor is fixedly disposed on the mounting flange.

[0011] Furthermore, at least two bearings are sleeved on the output shaft of the driving motor, and the outer diameters of the two bearings are in contact with the inner wall of the transmission housing.

[0012] Furthermore, the transmission component comprises:

[0013] A first bevel gear, wherein the first bevel gear is fixedly disposed on an output shaft of the driving motor;

[0014] The second bevel gear is fixedly disposed on the driving shaft, and the first bevel gear and the second bevel gear are meshed with each other.

[0015] Furthermore, the transmission housing is provided with an end cover at one end away from the flywheel, and the end cover is detachable.

[0016] Furthermore, the end cover is provided with a groove at one end located in the accommodating space, a bearing is provided in the groove, and the bearing is sleeved on the driving shaft.

[0017] Furthermore, a ratchet assembly is arranged between the flywheel and the drive shaft.

[0018] The utility model also includes an electric bicycle, comprising the driving mechanism as described above.

[0019] The beneficial effects of the utility model are as follows: the utility model arranges the drive shaft, the transmission housing and the drive motor, arranges the drive motor, the transmission components and the drive shaft together, and reasonably configures them, which can simplify the structure of the drive mechanism and improve the transmission efficiency. The design of the transmission housing can protect the internal transmission components and provide stable structural support. It helps to reduce the weight of the electric bicycle, achieve lightweight, and improve the overall operating experience and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a structural schematic diagram of the driving mechanism;

[0022] Figure 2 is a schematic diagram of the structure of the transmission housing;

[0023] Figure 3 The schematic diagram of the structure of the transmission housing is hidden;

[0024] Figure 4 for Figure 3 A top view of

[0025] Figure 5 is a schematic diagram of the structure of the end cover;

[0026] Figure 6 Schematic diagram of the structure of the ratchet assembly. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be noted that the directions or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 6 As shown: A driving mechanism, comprising:

[0031] A drive shaft 1, which is arranged horizontally and has a flywheel 11 at one end;

[0032] A transmission housing 2, the transmission housing 2 covers the middle part of the driving shaft 1, and the transmission housing 2 includes a containing space, and a transmission component 21 is arranged in the containing space;

[0033] The driving motor 3 is fixedly disposed on the transmission housing 2 and is in transmission connection with the transmission component 21 . The transmission component 21 is in transmission connection with the driving shaft 1 , so as to drive the driving shaft 1 to rotate.

[0034] By setting the drive shaft 1, the transmission housing 2 and the drive motor 3, the drive motor 3, the transmission component 21 and the drive shaft 1 together and configuring them reasonably, the structure of the drive mechanism can be simplified and the transmission efficiency can be improved. The design of the transmission housing 2 can not only protect the internal transmission component 21, but also provide stable structural support. It helps to reduce the weight of the electric bicycle, achieve lightweight, and improve the overall operating experience and efficiency.

[0035] In this embodiment, the transmission housing 2 is provided with a mounting flange 22 at one end perpendicular to the driving shaft 1 , and the driving motor 3 is fixedly disposed on the mounting flange 22 .

[0036] The mounting flange 22 provides a stable mounting platform, so that the drive motor 3 can be firmly fixed on the transmission housing 2, reducing vibration and displacement, and ensuring the stable operation of the transmission system. Installing the drive motor 3 perpendicular to the drive shaft 1 can make better use of space, reduce the volume of the system, and help further achieve the lightweight and compactness of the drive mechanism. The mounting flange 22 provides a standardized interface, making the installation and replacement of the motor simpler and more convenient, and reducing the complexity of maintenance.

[0037] Therein, at least two bearings 4 are sleeved on the output shaft of the driving motor 3 , and the outer diameters of the two bearings 4 are in contact with the inner wall of the transmission housing 2 .

[0038] The two bearings 4 can effectively support the output shaft of the drive motor 3, reduce the radial displacement and shaking of the shaft when rotating at high speed, and ensure the smooth operation of the transmission system. The use of bearings 4 can significantly reduce the friction between the output shaft and the inner wall of the transmission housing 2, thereby reducing wear and extending the service life of the drive mechanism. The smooth rotation characteristics of bearings 4 help to improve the transmission efficiency, so that the power output by the motor is more effectively transmitted to the drive shaft 1, optimize the connection between the motor and the transmission component 21, and improve the overall transmission performance and durability.

[0039] In this embodiment, the transmission component 21 includes:

[0040] A first bevel gear 211, the first bevel gear 211 is fixedly disposed on the output shaft of the driving motor 3;

[0041] The second bevel gear 212 is fixedly disposed on the driving shaft 1 , and the first bevel gear 211 and the second bevel gear 212 are meshed with each other.

[0042] The bevel gear can realize vertical transmission between the two shafts, which allows the drive motor 3 and the drive shaft 1 to be arranged on different planes, optimizes space utilization, and is suitable for compact design. The bevel gears can effectively transmit torque when meshing, and have high transmission efficiency, ensuring the effective transmission of the motor output power. By directly fixing the bevel gears on the motor output shaft and the drive shaft 1, the number of transmission parts 21 is reduced, the structure is simplified, and a good transmission effect is maintained. The overall performance of the drive mechanism is improved, and it is suitable for electric bicycles that require lightness and compactness.

[0043] In this embodiment, the transmission housing 2 is provided with an end cover 23 at one end away from the flywheel 11, and the end cover 23 is detachable. The detachable end cover 23 makes the inspection and maintenance of the transmission component 21 more convenient, facilitates the replacement of the bearing 4 or other internal components, and prolongs the service life of the equipment.

[0044] The end cover 23 is provided with a groove 231 at one end of the accommodating space, and a bearing 4 is provided in the groove 231 . The bearing 4 is sleeved on the driving shaft 1 .

[0045] The bearing 4 in the end cover 23 provides an additional support point, which can better stabilize the drive shaft 1, reduce vibration and wear during operation, and ensure the smoothness of the transmission. The design of the end cover 23 helps to improve the sealing performance of the transmission housing 2, prevent dust or impurities from entering the transmission system, and protect the normal operation of the transmission component 21.

[0046] As a preferred embodiment of the above embodiment, a ratchet assembly 12 is provided between the flywheel 11 and the driving shaft 1 .

[0047] The ratchet assembly 12 can realize one-way transmission. For example, the flywheel 11 can drive the drive shaft 1 to rotate when pedaling, but cannot drive the drive shaft 1 in the reverse direction, which helps to prevent reverse power transmission and protect other components of the drive system.

[0048] This embodiment also includes an electric bicycle, including the driving mechanism as described above.

[0049] The drive mechanism is provided with a drive shaft 1, a transmission housing 2 and a drive motor 3, and the drive motor 3, the transmission component 21 and the drive shaft 1 are arranged together and reasonably configured, which can simplify the structure of the drive mechanism and improve the transmission efficiency. The design of the transmission housing 2 can not only protect the internal transmission component 21, but also provide stable structural support. It helps to reduce the weight of the electric bicycle, achieve lightweight, and improve the overall operating experience and efficiency.

[0050] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A driving mechanism, characterized in that: include: A drive shaft, the drive shaft is arranged horizontally and a flywheel is arranged at one end thereof; A transmission housing, the transmission housing covering the middle part of the drive shaft, the transmission housing comprising a containing space, and the transmission component is arranged in the containing space; A driving motor is fixedly disposed on the transmission housing and is drivingly connected to the transmission component. The transmission component is drivingly connected to the driving shaft to drive the driving shaft to rotate.

2. The driving mechanism according to claim 1, characterized in that: The transmission housing is provided with a mounting flange at one end perpendicular to the driving shaft, and the driving motor is fixedly arranged on the mounting flange.

3. The driving mechanism according to claim 2, characterized in that: At least two bearings are sleeved on the output shaft of the driving motor, and the outer diameters of the two bearings are in contact with the inner wall of the transmission housing.

4. The driving mechanism according to claim 3, characterized in that: The transmission components include: A first bevel gear, wherein the first bevel gear is fixedly disposed on an output shaft of the driving motor; The second bevel gear is fixedly disposed on the driving shaft, and the first bevel gear and the second bevel gear are meshed with each other.

5. The driving mechanism according to claim 1, characterized in that: The transmission housing is provided with an end cover at one end away from the flywheel, and the end cover is detachable.

6. The driving mechanism according to claim 5, characterized in that: The end cover is provided with a groove at one end located in the accommodating space, a bearing is provided in the groove, and the bearing is sleeved on the driving shaft.

7. The driving mechanism according to claim 1, characterized in that: A ratchet assembly is arranged between the flywheel and the driving shaft.

8. An electric bicycle, characterized in that: Comprising a drive mechanism as claimed in any one of claims 1 to 7.

Images