CN2839103Y - Electric bicycle speed reducing mechanism - Google Patents

Abstract

An electric bicycle deceleration mechanism is characterized in that there is a driving gear installed on the inner rotor of the electric bicycle motor, three planetary gears are evenly distributed around the driving gear, each planetary gear is installed on the overrunning clutch assembly through a short shaft, and three The planetary gears mesh with a ring gear mounted on the e-bike's hub. In this technical solution, the inner rotor of the motor drives the driving gear, the driving gear drives the planetary gear, the planetary gear drives the inner ring gear, the inner ring gear drives the wheel hub, and the wheel hub is connected with the wheel to achieve the purpose of deceleration transmission. The deceleration through the planetary mechanism increases the torque of the electric vehicle, which is especially beneficial to climbing hills. And because the planetary gear is connected with the overrunning clutch assembly (the overrunning clutch assembly is the same as the prior art), it is beneficial to the sliding of the electric vehicle, saves energy consumption, and increases the continuation mileage.

Description

Electric bicycle deceleration mechanism

                      

The utility model relates to a deceleration mechanism, which is mainly suitable for electric vehicles (such as electric bicycles, electric tricycles, electric motorcycles).

Background technique

Electric vehicles (such as electric bicycles) adopt low-speed motors, and the motors need to drive the outer rotating hub after a reduction mechanism. Although the existing motors used for electric bicycles are reduced by gears, the electric bicycles have small torque and poor climbing ability; and the low-speed motors that have been used have no clutch, so the continuing ability is also poor and the energy consumption is large.

Contents of the invention

The purpose of the utility model is to overcome the disadvantages of the prior art and provide an electric bicycle deceleration mechanism with high torque and energy saving.

The technical scheme of the electric bicycle deceleration mechanism of the utility model is: it is characterized in that there is a driving gear installed on the inner rotor of the electric bicycle motor, three planetary gears are uniformly distributed around the driving gear, and each planetary gear is installed on the overrunning clutch through a short shaft. In the assembly, three planetary gears mesh with an inner ring gear, which is installed on the hub of the electric bicycle. In this technical solution, the inner rotor of the motor drives the driving gear, the driving gear drives the planetary gear, the planetary gear drives the inner ring gear, the inner ring gear drives the wheel hub, and the wheel hub is connected with the wheel to achieve the purpose of deceleration transmission. The deceleration through the planetary mechanism increases the torque of the electric vehicle, which is especially beneficial to climbing hills. Because the planetary gear is connected with the overrunning clutch assembly (the overrunning clutch assembly is the prior art), it is beneficial to the sliding of the electric vehicle, saves energy consumption, and increases the continuation mileage.

The electric bicycle decelerating mechanism of the utility model has a planetary gear made of nylon material, and a deep groove ball bearing is installed between the planetary gear and the short shaft, which is beneficial to rotation. On both sides of the deep groove ball bearing, there are elastic circlips for the shaft and elastic circlips for the hole, which are fixed and reliable.

Description of drawings

Fig. 1 is the structural representation of the deceleration mechanism of electric bicycle of the present utility model;

Fig. 2 is a schematic diagram of the electric bicycle deceleration mechanism of the present invention in direction A;

Fig. 3 is a schematic diagram of the driving gear of the utility model electric bicycle deceleration mechanism;

Fig. 4 is a schematic diagram in direction B of the driving gear of the electric bicycle deceleration mechanism of the present invention;

Fig. 5 is a schematic diagram of the planetary gear of the reduction mechanism of the electric bicycle of the present invention;

Fig. 6 is a schematic diagram in direction C of the planetary gear of the reduction mechanism of the electric bicycle of the present invention.

Detailed ways

The utility model discloses an electric bicycle deceleration mechanism, as shown in Fig. 1 and Fig. 2, its main technical feature is that there is a driving gear 7 installed on the inner rotor of the electric bicycle motor, the periphery of the driving gear 7 is evenly distributed and Mesh with three planetary gears 2, each planetary gear 2 is installed on the overrunning clutch assembly 3 through the short shaft 8, the three planetary gears 2 are only meshed with one ring gear 1, and the ring gear 1 is installed on the hub of the electric bicycle superior. Therefore, the deceleration mechanism is a group of planetary deceleration mechanisms, and the torque of the electric vehicle is increased through the planetary deceleration mechanism, which is conducive to improving the climbing ability. Simultaneously, the driving gear 7 and the planetary gear 2 and the ring gear 1 are designed with a variation coefficient, so that the meshing between the teeth is better and the service life of the gears is increased. Especially the planetary gear is made of MC oil-containing nylon material, which has self-lubrication, good performance and long gear life. A deep groove ball bearing 5 is installed between the planetary gear 2 and the minor shaft 8, and the rotation is flexible. And there are circlips 4 for shaft and circlips 6 for holes on both sides of deep groove ball bearing 5, which are fixed and reliable.

Claims (3)

1, Electrical Bicycle speed reduction gearing, it is characterized in that the driving gear (7) that has one to be installed on the electric bicycle motor internal rotor, peripheral uniform three planetary wheels (2) of driving gear (7), each planetary wheel (2) is installed on the overriding clutch assembly (3) through minor axis (8), three planetary wheels (2) are meshed with an internally toothed annulus (1), and internally toothed annulus (1) is installed on the commentaries on classics hub of Electrical Bicycle.

2, Electrical Bicycle speed reduction gearing as claimed in claim 1 is characterized in that planetary wheel (2) is that nylon material is made, between planetary wheel (2) and minor axis (8) deep groove ball bearing (5) is installed.

3, Electrical Bicycle speed reduction gearing as claimed in claim 1 is characterized in that there are circlip for shaft (4) and circlip for bore (6) in the both sides of deep groove ball bearing (5).

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