Motorcycle gear shifting executing mechanism

Abstract

The utility model relates to the field of motorcycle gear shifting, and discloses a motorcycle gear shifting executing mechanism which comprises an input shaft, a driving shaft, a driven shaft and an output shaft, the driving shaft, the driven shaft and the output shaft form a triangle, an inner gear is arranged at the upper end of the driving shaft, the input shaft is eccentrically arranged relative to the inner gear, and the side, close to the center of the triangle, of the inner gear is meshed with the end of the input shaft. The structure is compact, layout is reasonable, and space is saved.

Description

Technical Field

[0001] The utility model relates to the field of motorcycle gear shifting, in particular to a motorcycle gear shifting actuator. Background Art

[0002] With the development of the times, motorcycles are becoming more and more advanced. The structure of advanced equipment takes up space, is not compact, has high cost and heavy weight. It is neither economical nor practical, so each component needs to be lightweight and optimized.

[0003] The shift actuator is an important structure of the motorcycle. Its function is to automatically control the gearbox to shift gears through the motor. In this process, the output power of the motor needs to be reduced in speed and increased in torque to complete the shift. The usual practice is to adjust the gear ratio of multiple sets of gears.

[0004] Our company has developed relevant patents, the publication number is: CN118224298A, the invention name is: Actuator, transmission and engine for motorcycles. Figure 1 It can be seen that this patent arranges multiple transmission shafts in a line, which is simple and convenient, but can only be used to install two small motors to save space. If only one larger motor is used to drive, the connection position between the motor and the actuator is too far from the center position of the actuator, which is not conducive to the overall installation layout and easily causes waste of space. Utility Model Content

[0005] The utility model aims to provide a motorcycle gear shifting actuator with compact structure, reasonable layout and space saving.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a motorcycle gear shift actuator, comprising an input shaft, a driving shaft, a driven shaft and an output shaft, wherein the driving shaft, the driven shaft and the output shaft form a triangle, an internal gear is provided at the upper end of the driving shaft, the input shaft is eccentrically arranged relative to the internal gear, and the internal gear is meshed with the end of the input shaft on the side close to the center of the triangle.

[0007] The beneficial effects of this program are:

[0008] 1. The internal gear has the advantages of compact structure, smooth transmission, high precision and high overlap. Although it needs frequent maintenance and replacement, it can be removed and maintained together with the input shaft because it is in direct contact with the input shaft, and does not need to be maintained separately.

[0009] 2. In order to make the overall appearance of the utility model more symmetrical and regular, and to facilitate layout when installed on a motorcycle to maximize space utilization, in this solution, the input shaft is placed as close to the center of the overall structure as possible to facilitate connection and fixation between the motor for inputting power and the utility model; thereby achieving a compact structure, reasonable layout, and space saving effects.

[0010] 3. Compared with arranging in a line, in this solution, the driving shaft, the driven shaft and the output shaft form a triangle. With the gear radius unchanged, the outer contour area of the total plane is the smallest, which saves more space.

[0011] Furthermore, it also includes a housing. The ends of the driving shaft, the driven shaft and the output shaft are all rotatably connected to the housing, and bushings are provided at the connection positions.

[0012] Furthermore, a small driving gear is provided on the driving shaft, a large driven gear and a small driven gear are provided on the driven shaft, and a sector gear is provided on the output shaft. The lower part of the internal gear, the small driven gear and the sector gear are at the same plane height. The small driving gear meshes with the large driven gear, and the small driven gear meshes with the sector gear.

[0013] Furthermore, limit posts are provided at the edge of the housing, and the limit posts are used to limit the rotation angle of the sector gear.

[0014] Furthermore, the small driving gear, the large driven gear, the small driven gear, the sector gear and the internal gear are all steel parts.

[0015] Furthermore, the largest interior angle of the triangle is less than 90°.

[0016] This solution also has the following effects:

[0017] 1. In the prior art, ball bearings are usually used to fix the rotating shaft, while in this solution, bushings are used in cooperation with the housing to fix the rotating shaft, and the structure is more compact.

[0018] 2. Replace the existing powder metallurgy parts with steel parts, thereby reducing the tooth width to make the structure more compact.

[0019] 3. Without interfering with non-meshing gears, reduce the angle of the largest interior angle of the triangle as much as possible, so as to make the structure more compact. Description of the Drawings

[0020] Figure 1 is the overall three-dimensional view of the embodiment;

[0021] Figure 2 is the three-dimensional view inside the housing of the embodiment;

[0022] Figure 3 is the top view of the inside of the housing of the embodiment. Detailed Description of the Invention

[0023] The following is a further detailed description through specific embodiments:

[0024] The reference numerals in the accompanying drawings of the specification include: housing 1, input shaft 2, driving shaft 3, internal gear 31, small driving gear 32, driven shaft 4, large driven gear 41, small driven gear 42, output shaft 5, sector gear 51.

[0025] Embodiment

[0026] The embodiment is basically as follows Figures 1 - 3 shown: The motorcycle shifting actuator includes a housing 1 as shown Figure 1 shown. An input shaft 2, a driving shaft 3, a driven shaft 4, and an output shaft 5 are provided inside the housing 1. The lower end of the output shaft 5 passes through the housing 1 and is connected to the transmission (not shown in the figure). The ends of the driving shaft 3, the driven shaft 4, and the output shaft 5 are all rotatably connected to the housing 1, and bushings are provided at the connection positions. As Figure 3 shown, the driving shaft 3, the driven shaft 4, and the output shaft 5 form an equilateral triangle. In this embodiment, the connection method between the shaft and the gear is a key connection.

[0027] As Figure 2 shown, an internal gear 31 is provided at the upper end of the driving shaft 3. The input shaft 2 is eccentrically arranged relative to the internal gear 31. External teeth are provided at the lower end of the input shaft 2, and the internal gear 31 meshes with the lower end of the input shaft 2 on the side close to the center of the triangle. A small driving gear 32 is provided at the lower end of the driving shaft 3. A large driven gear 41 and a small driven gear 42 are sequentially provided on the driven shaft 4 from bottom to top. A sector gear 51 is provided at the upper end of the output shaft 5. The lower part of the internal gear 31, the small driven gear 42, and the sector gear 51 are at the same plane height. The small driving gear 32 meshes with the large driven gear 41, and the small driven gear 42 meshes with the sector gear 51. A limiting post is welded to the edge of the housing 1, and the limiting post is used to limit the rotation angle of the sector gear 51. The small driving gear 32, the large driven gear 41, the small driven gear 42, the sector gear 51, and the internal gear 31 are all steel parts.

[0028] The above are only the embodiments of the present invention. Specific technical solutions and / or common knowledge such as characteristics well known in the art are not described in detail herein. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. Motorcycle shift execution mechanism, characterized in that: It includes an input shaft, a driving shaft, a driven shaft and an output shaft. The driving shaft, the driven shaft and the output shaft form a triangle. An internal gear is provided at the upper end of the driving shaft. The input shaft is eccentrically arranged relative to the internal gear, and the end of the input shaft meshes with the side of the internal gear close to the center of the triangle.

2. The motorcycle shift actuator according to claim 1, characterized in that: It further includes a housing. The ends of the driving shaft, the driven shaft and the output shaft are all rotatably connected to the housing, and a shaft sleeve is provided at the connection position.

3. The motorcycle gear shifting actuator according to claim 2, wherein: A small driving gear is provided on the driving shaft, a large driven gear and a small driven gear are provided on the driven shaft, and a sector gear is provided on the output shaft. The lower part of the internal gear, the small driven gear and the sector gear are at the same plane height. The small driving gear meshes with the large driven gear, and the small driven gear meshes with the sector gear.

4. The motorcycle gear shifting actuator according to claim 3, characterized in that: Limit posts are provided at the edge of the housing, and the limit posts are used to limit the rotation angle of the sector gear.

5. The motorcycle gear shifting actuator according to claim 4, characterized in that: The small driving gear, the large driven gear, the small driven gear, the sector gear and the internal gear are all made of steel.

6. The motorcycle shift actuator according to claim 5, wherein: The largest interior angle of the triangle is less than 90°.

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