CN218216998U

CN218216998U - Power assembly of electric motorcycle

Info

Publication number: CN218216998U
Application number: CN202222410430.3U
Authority: CN
Inventors: 郭东劭; 张立成; 张林江; 陈明明; 郑林; 周鹏搏
Original assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Current assignee: Zhejiang Qianjiang Motorcycle Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-03
Anticipated expiration: 2032-09-09

Abstract

The utility model provides an electric motorcycle car's power assembly belongs to electric motorcycle car technical field. The power assembly of the electric motorcycle solves the problems that the power assembly of the existing electric motorcycle is changed greatly and the transmission efficiency is poor. The power assembly of the electric motorcycle comprises a motor shell, a driving motor arranged in the motor shell, a clutch arranged in the motor shell, a main shaft and an auxiliary shaft, wherein the main shaft and the auxiliary shaft are arranged in the motor shell and are parallel to a motor shaft of the driving motor, a plurality of main shaft teeth are sleeved on the main shaft, auxiliary shaft teeth in one-to-one correspondence to the main shaft teeth are sleeved on the auxiliary shaft, a driving gear is sleeved on the motor shaft of the driving motor, the motor shaft is fixedly connected with the driving gear, the main shaft is connected with the output end of the clutch, and a driven gear meshed with the driving gear is connected to the input end of the clutch. This electric motorcycle car's power assembly makes driving motor's the increase that driving force can be stable, reduces the influence to driving motor, has promoted driving motor's life, has increased the driving enjoyment.

Description

Power assembly of electric motorcycle

Technical Field

The utility model belongs to the technical field of electric motorcycle car, a power assembly of electric motorcycle car is related to.

Background

The traditional fuel motorcycle has large discharge amount and causes environmental pollution, so most fuel motorcycles are gradually replaced by electric motorcycles, and the electric motorcycles are zero-emission, low-noise and portable vehicles, are suitable for occasions with smooth roads and low driving speed, and are widely used in cities. The existing electric motorcycle is directly driven by the hub driving motor, and the output torque and the rotating speed of the hub driving motor are controlled by adjusting the input voltage or current of the hub driving motor, so that the driving force of the electric motorcycle is required to be rapidly increased on an upward steep slope, the current is rapidly increased, the controller and the driving motor are easily burnt, the service life of a storage battery is influenced, and only the handle of the controller needs to be screwed to the bottom when the electric motorcycle is driven, and the operation pleasure is lacked.

To solve the existing problems, people adjust the internal structure of the driving structure of the electric motorcycle: the Chinese patent application (CN 205632910U) discloses an engine structure of an electric motorcycle, which comprises a motor shell, a motor part arranged in the motor shell, and a main shaft and an auxiliary shaft which are arranged in the motor shell in parallel with a motor output shaft, wherein a primary clutch and a primary gear rotating along with a shell of the primary clutch are arranged on the motor output shaft, a secondary clutch and a secondary gear rotating along with the shell of the secondary clutch are arranged on the main shaft, the primary gear is meshed with the secondary gear, a speed change drum is arranged between the main shaft and the auxiliary shaft, and a plurality of speed regulating gears are also arranged on the main shaft and the auxiliary shaft.

Although the structure is additionally provided with the gear shifting structure, in the transmission process, the primary speed slowing in the speed changing process is realized through the primary clutch between the motor output shaft and the primary gear, the secondary speed slowing in the speed changing process is realized through the secondary clutch between the main shaft and the secondary gear, and the speed slowing in the speed changing process is further realized through the primary clutch and the secondary clutch.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an electric motorcycle car's power assembly, the utility model aims to solve the technical problem that: how to solve the problem that the change of the power assembly of the existing electric motorcycle is larger and the transmission efficiency is poorer.

The purpose of the utility model can be realized by the following technical proposal:

a power assembly of an electric motorcycle comprises a motor shell, a driving motor arranged in the motor shell, a clutch arranged in the motor shell, and a main shaft and an auxiliary shaft which are arranged in the motor shell and parallel to a motor shaft of the driving motor, wherein a plurality of main shaft teeth are sleeved on the main shaft, and auxiliary shaft teeth which are in one-to-one correspondence with the main shaft teeth are sleeved on the auxiliary shaft.

The working principle is as follows: when the electric motorcycle runs, the driving motor is started to directly drive the driving gear to rotate through the motor shaft, the driving gear drives the driven gear to rotate, the clutch transmits power to the main shaft to drive the main shaft to rotate, at the moment, the main shaft teeth on the main shaft can drive the corresponding auxiliary shaft teeth to rotate, and as the main shaft teeth are provided with a plurality of main shaft teeth, each main shaft tooth corresponds to a corresponding gear, and the gear shifting of the main shaft teeth or the auxiliary shaft teeth is realized through the gear shifting drum in the motor shell; when the speed is reduced, the rotating speed of a motor shaft of the driving motor is directly reduced at the moment, the rotating speed of the main shaft is unchanged, the rotating speed difference occurs between the motor shaft and the main shaft at the moment, the input end and the output end of the clutch can rotate relatively, so that the rotation of the motor shaft can not be transmitted to the main shaft, the speed of the main shaft is gradually reduced under the condition of no driving force, so that the main shaft and the motor shaft are buffered, only one clutch is arranged, the relative rotation of the main shaft and the motor shaft can be quickly realized during speed reduction, great change of the driving structure can be reduced while the operation feeling is achieved, fewer integral accessories in the driving structure can be realized, multi-gear shifting can also be realized, when the driving force of the electric motorcycle is required to be quickly increased on a steep slope and the like, the driving force can be stably increased through shifting, the influence on the driving motor is reduced, the service life of the driving motor is prolonged, and the driving pleasure is increased.

In the power assembly of the electric motorcycle, the clutch is located at the end of the main shaft, the clutch is provided with a cylindrical installation part, the driven gear is sleeved on the installation part, the main shaft is sleeved with the main shaft gasket and clamped with the clamp spring which axially limits the main shaft gasket, and the installation part is abutted against the main shaft gasket.

The arrangement of the structure enables the driven gear to be stably connected with the clutch in a sleeved mode, and the arrangement of the main shaft gasket and the clamp spring enables the driven gear not to affect the operation of other parts on the main shaft, so that the installation stability of the driven gear and the clutch is further improved.

In the power assembly of the electric motorcycle, a gear shifting shaft assembly and a gear shifting drum parallel to the main shaft are arranged in the motor shell, the gear shifting shaft assembly comprises a gear shifting shaft arranged in the motor shell, a connecting arm is hinged to the gear shifting shaft, a parking rocker arm is connected to the connecting arm, the gear shifting drum can drive the parking rocker arm to swing through rotation, and the connecting arm is located between the main shaft and a motor shaft of the driving motor.

Be connected through the extension spring between linking arm and the parking rocking arm, the setting of linking arm for shift shaft subassembly can rational utilization motor casing space, and do not influence the power transmission of motor shaft yet, and can realize shifting through the swing of parking rocking arm, further promotion drive structure's operation enjoyment.

In the power assembly of the electric motorcycle, the motor shaft is sleeved with the support bearing, the outer end of the support bearing is circumferentially positioned on the motor shell, the motor shaft is further sleeved with the support washer, the support washer is positioned between the support bearing and the driving gear, the end part of the motor shaft is in threaded connection with the limit nut, and the limit nut abuts against the driving gear.

The setting of this structure through stop nut's setting, can carry out spacingly to the driving gear to do not increase the axial space of motor shaft, and through support bearing's setting, can make the motor shaft less at the frictional force that rotates the in-process and receive, and also can provide the holding power through support bearing, avoid the motor shaft to take place great skew when rotating, promoted drive structure's stability, and furthest's reduction drive structure's volume.

In the power assembly of the electric motorcycle, one end of the auxiliary shaft is sleeved with the output wheel, and the other end of the auxiliary shaft is arranged close to the clutch.

The arrangement of the structure ensures that the arrangement of the clutch and the gear shifting shaft assembly does not influence the installation and distribution of the output wheel, and further ensures the stability of operation.

Compared with the prior art, this electric motorcycle car's power assembly has the advantage: only be provided with a clutch for can be quick when slowing down realize the relative rotation of main shaft and motor shaft, can realize having reduced the great change of drive structure when handling the sense, make the interior holistic accessory of drive structure less, and also can realize shifting of many gears, when making the drive power that needs electric motorcycle car increases fast of steep slope etc. the accessible is shifted and is realized, make the stable increase of drive power ability of driving motor, reduce the influence to driving motor, driving motor's life has been promoted, and increased and driven enjoyment.

Drawings

Fig. 1 is a sectional view of a power train of the electric motorcycle.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partial structural schematic diagram of the power assembly of the electric motorcycle.

In the figure, 1, a motor shell; 2. a drive motor; 21. a motor shaft; 22. a driving gear; 23. a support bearing; 24. a support washer; 25. a limit nut; 3. a main shaft; 31. a spindle gear; 32. a spindle washer; 33. a clamp spring; 34. a main shaft bearing; 4. a counter shaft; 41. a secondary shaft tooth; 42. a counter shaft bearing; 43. an output wheel; 5. a clutch; 51. a driven gear; 52. an installation part; 6. a gear shifting shaft assembly; 61. a gear shifting shaft; 62. a connecting arm; 63. a parking rocker arm; 7. and a shift drum.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the power assembly of the electric motorcycle includes a motor housing 1, a driving motor 2 installed in the motor housing 1, a clutch 5 installed in the motor housing 1, and a main shaft 3 and a secondary shaft 4 installed in the motor housing 1 and arranged in parallel with a motor shaft 21 of the driving motor 2, wherein a plurality of main shaft teeth 31 are sleeved on the main shaft 3, and secondary shaft teeth 41 corresponding to the main shaft teeth 31 one to one are sleeved on the secondary shaft 4.

Specifically, as shown in fig. 1-3, a driving gear 22 is sleeved on a motor shaft 21 of a driving motor 2, the motor shaft 21 is fixedly connected with the driving gear 22, a main shaft 3 is connected with an output end of a clutch 5, a driven gear 51 meshed with the driving gear 22 is connected to an input end of the clutch 5, a shift shaft assembly 6 and a shift drum 7 parallel to the main shaft 3 are arranged in the motor housing 1, the shift shaft assembly 6 includes a shift shaft 61 arranged in the motor housing 1, a connecting arm 62 is hinged to the shift shaft 61, a parking rocker arm 63 is connected to the connecting arm 62, the shift drum 7 can drive the parking rocker arm 63 to swing through rotation, and the connecting arm 62 is located between the main shaft 3 and the motor shaft 21 of the driving motor 2.

The working principle is as follows: when the electric motorcycle runs, the driving motor 2 is started to directly drive the driving gear 22 to rotate through the motor shaft 21, the driving gear 22 drives the driven gear 51 to rotate, the clutch 5 transmits power to the main shaft 3 to drive the main shaft 3 to rotate, and at the moment, the main shaft teeth 31 on the main shaft 3 can drive the corresponding auxiliary shaft teeth 41 to rotate; when the speed is reduced, the rotating speed of the motor shaft 21 of the driving motor 2 is directly reduced, the rotating speed of the main shaft 3 is unchanged, the rotating speed difference occurs between the motor shaft 21 and the main shaft 3 at the moment, the input end and the output end of the clutch 5 can rotate relatively, so that the rotation of the motor shaft 21 can not be transmitted to the main shaft 3, the main shaft 3 gradually reduces the speed under the condition of no driving force, so that the main shaft 3 and the motor shaft 21 are buffered, only one clutch 5 is arranged, so that the relative rotation of the main shaft 3 and the motor shaft 21 can be quickly realized during the speed reduction, the larger change of the driving structure can be reduced while the operation feeling is realized, the number of integral accessories in the driving structure is small, the gear shifting of multiple gears can also be realized, when the driving force of the electric motorcycle is required to be quickly increased when going up a steep slope and the like, the gear shifting can be realized, the driving force of the driving motor can be stably increased, the influence on the driving motor 2 is reduced, the service life of the driving motor 2 is prolonged, and the driving pleasure is increased.

As shown in fig. 1 and fig. 2, the clutch 5 is located the tip of the main shaft 3, the clutch 5 has an installation portion 52 that is cylindrical, the driven gear 51 is sleeved on the installation portion 52, the main shaft 3 is sleeved with the main shaft gasket 32 and is connected with the clamp spring 33 that is used for limiting the axial direction of the main shaft gasket 32, the installation portion 52 abuts against the main shaft gasket 32, the two ends of the main shaft 3 are all sleeved with the main shaft bearing 34, the outer side of the main shaft bearing 34 is circumferentially positioned through the motor housing 1, and the clamp spring 33 abuts against one of the main shaft bearings 34.

As shown in fig. 1, a support bearing 23 is sleeved on the motor shaft 21, the outer end of the support bearing 23 is circumferentially positioned on the motor housing 1, a support washer 24 is further sleeved on the motor shaft 21, the support washer 24 is positioned between the support bearing 23 and the driving gear 22, a limit nut 25 is connected to the end of the motor shaft 21 through a thread, and the limit nut 25 abuts against the driving gear 22.

As shown in fig. 1 and 2, both ends of the auxiliary shaft 4 are sleeved with auxiliary shaft bearings 42, the outer sides of the auxiliary shaft bearings 42 are circumferentially positioned by the motor housing 1, one end of the auxiliary shaft 4 is sleeved with an output wheel 43, and the other end of the auxiliary shaft 4 is disposed close to the clutch 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The power assembly of the electric motorcycle comprises a motor shell (1), a driving motor (2) installed in the motor shell (1), a clutch (5) installed in the motor shell (1) and a spindle (3) and a spindle (4) which are installed in the motor shell (1) and parallel to a motor shaft (21) of the driving motor (2), wherein a plurality of spindle teeth (31) are sleeved on the spindle (3), spindle teeth (41) which correspond to the spindle teeth (31) in a one-to-one mode are sleeved on the spindle (4), the power assembly is characterized in that a driving gear (22) is sleeved on the motor shaft (21) of the driving motor (2), the motor shaft (21) is fixedly connected with the driving gear (22), the spindle (3) is connected with the output end of the clutch (5), and a driven gear (51) meshed with the driving gear (22) is connected to the input end of the clutch (5).

2. The power assembly of the electric motorcycle as claimed in claim 1, wherein the output end of the clutch (5) is connected with the end of the main shaft (3), the clutch (5) has a cylindrical mounting portion (52), the driven gear (51) is sleeved on the mounting portion (52), the main shaft (3) is sleeved with a main shaft gasket (32) and a clamp spring (33) which is clamped to axially limit the main shaft gasket (32), and the mounting portion (52) is abutted against the main shaft gasket (32).

3. The power assembly of the electric motorcycle according to claim 1, wherein a gear shifting shaft assembly (6) and a gear shifting drum (7) parallel to the main shaft (3) are arranged in the motor shell (1), the gear shifting shaft assembly (6) comprises a gear shifting shaft (61) arranged in the motor shell (1), a connecting arm (62) is hinged to the gear shifting shaft (61), a parking rocker (63) is connected to the connecting arm (62), the gear shifting drum (7) can drive the parking rocker (63) to swing through rotation, and the connecting arm (62) is located between the main shaft (3) and the motor shaft (21) of the driving motor (2).

4. The power assembly of the electric motorcycle as claimed in claim 1, 2 or 3, wherein a support bearing (23) is sleeved on the motor shaft (21), the outer end of the support bearing (23) is circumferentially positioned on the motor housing (1), a support washer (24) is further sleeved on the motor shaft (21), the support washer (24) is positioned between the support bearing (23) and the driving gear (22), a limit nut (25) is connected to the end of the motor shaft (21) in a threaded manner, and the limit nut (25) abuts against the driving gear (22).

5. A power train of an electric motorcycle according to claim 1, 2 or 3, characterized in that one end of the auxiliary shaft (4) is fitted with an output wheel (43) and the other end of the auxiliary shaft (4) is arranged close to the clutch (5).