CN201099342Y - Driving device of electric scooter - Google Patents

Abstract

The utility model discloses an electric scooter's drive arrangement is suitable for the drive to connect in the rear wheel at electric scooter footboard rear, the rear wheel has the bearing surface with ground contact and the slope of bearing surface both sides, drive arrangement includes casing, motor and friction roller, the motor install in the casing below to the drive shaft has, the drive shaft stretches to rear wheel one side, the friction roller connect in the drive shaft, just the peripheral side of friction roller with the slope of rear wheel is contradicted. The utility model discloses owing to adopt the peripheral side of friction gyro wheel and the mode drive rear wheel that the slope of rear wheel was contradicted, not only simplified the structure of whole device, and can not cause wearing and tearing to the holding surface of rear wheel, still increased the area of contact of friction gyro wheel and rear wheel to the work efficiency of motor has been improved, in addition, because its friction gyro wheel is direct and motor drive shaft connection, made its easily nimble control electric scooter's state.

Description

Driving device of electric scooter

technical field

The utility model relates to an electric scooter, in particular to a driving device for the electric scooter.

Background technique

At present, the driving device of an electric scooter mainly includes a housing, a motor, a pinion, a large gear, a transmission shaft and a friction roller. The housing is fixed on the lower side of the pedal of the electric scooter, and the motor is installed on the housing. The pinion is connected to the output shaft of the motor, the large gear and the pinion are meshed with each other, the transmission shaft is connected to the large gear, the friction roller is connected to the transmission shaft and is connected to the wheel of the electric scooter The supporting surfaces in contact with the ground are in conflict, and the purpose of driving the electric scooter is realized through the friction between them. The driving device of this structure has the following disadvantages:

1. Although this device can achieve the effect of driving the electric scooter, its structure is complicated, resulting in low working efficiency of its motor.

2. Since the purpose of driving the wheels is realized by directly contacting the friction roller with the wheel support surface, long-term use will cause wear and tear on the anti-skid lines of the wheel support surface, increasing the incidence of accidents.

3. Through the transmission mode between the gears, when emergency braking is required, a large external force is required to forcibly stop the operation of the gears. It is not suitable as an electric scooter, which can shuttle among the crowd. Sports equipment .

Therefore, there is an urgent need for a driving device for an electric scooter that has a simple structure, a high safety factor, and can be flexibly controlled.

utility model

The purpose of the utility model is to provide a driving device of an electric scooter with simple structure, high safety factor and flexible control.

In order to achieve the above object, the technical solution of the utility model is to provide a driving device for an electric scooter, which is suitable for driving the rear wheel connected to the rear of the pedal of the electric scooter, and the rear wheel has a supporting surface in contact with the ground and a supporting surface The slope surface on both sides of the surface, the driving device includes a housing, a motor and friction rollers, the motor is installed under the housing, and has a drive shaft, the drive shaft extends to the rear wheel side, the friction The roller is connected to the drive shaft, and the peripheral side of the friction roller is in conflict with the slope surface of the rear wheel.

Preferably, the motors and the friction rollers connected to their drive shafts are divided into two groups, and the two groups of motors and friction rollers are symmetrically distributed on both sides of the rear wheels, thereby forming the effect of pushing the rear wheels, which is more conducive to driving the rear wheels .

Preferably, the friction roller is a tapered roller, and the peripheral side of the tapered roller can have a larger area of contact with the slope surface of the rear wheel, thereby generating greater driving force on the rear wheel.

Compared with the prior art, the utility model drives the rear wheel in such a way that the peripheral side of the friction roller conflicts with the slope surface of the rear wheel, which not only simplifies the structure of the overall device, but also does not cause wear to the supporting surface of the rear wheel. The contact area between the friction roller and the rear wheel is also increased, thereby improving the working efficiency of the motor. In addition, because the friction roller is directly connected with the drive shaft of the motor, it is easy to flexibly control the state of the electric scooter.

Description of drawings

Fig. 1 is a perspective view of the driving device of the electric scooter of the present invention.

Fig. 2 is a three-dimensional exploded view of the driving device of the electric scooter of the present invention.

Fig. 3 is a schematic diagram of the application of the driving device of the electric scooter of the present invention to the electric scooter.

Detailed ways

As shown in Figure 1, a driving device 1 of an electric scooter of the present invention is suitable for driving the rear wheel 15 connected to the rear of the pedal 22 of the electric scooter, and the rear wheel 15 has a supporting surface 15a in contact with the ground and a supporting surface. The slope surface 15b on both sides of the surface, the driving device 1 includes: a housing 10, a motor 13 and a friction roller 14, the motor 13 is installed below the housing 10, and has a drive shaft 13a, the drive shaft 13a Extending toward the side of the rear wheel 15 , the friction roller 14 is connected to the drive shaft 13 a, and the peripheral side 14 a of the friction roller 14 is in conflict with the slope surface 15 b of the rear wheel 15 .

As shown in Figures 1 and 2, the casing 10 is composed of a tray 11 and a rear wheel bracket 12, the tray 11 is connected with the rear wheel bracket 12 by screws 19, and the rear wheel bracket 12 has groove 16 and accommodating hole 17, the rear wheel 15 is pivotally connected to the rear wheel bracket 12 and located in the groove 16, the motor 13 is connected to the tray 11 and the rear wheel bracket 12, and has a drive shaft 13a, the drive shaft 13a stretches to the rear wheel side, the friction roller 14 connected to the drive shaft 13a of the motor 13 passes through the accommodating hole 17, and is connected with the above-mentioned The rear wheel bracket 12 is pivotally connected and the slope surface 15b of the rear wheel 15 located in its groove 16 interferes. The working principle of the driving device 1 of the utility model electric scooter is as follows: the rotation of the motor 13 drives the drive shaft 13a on it to rotate, and the rotation of the drive shaft 13a of the above-mentioned motor 13 drives the friction roller 14 connected with it to rotate. The peripheral side 14a of the roller 14 is in contact with the slope surface 15b of the rear wheel 15, so the rotation of the above-mentioned friction roller 14 will drive the rear wheel 15 in contact with it to rotate together through the effect of friction, thereby realizing the purpose of driving the rear wheel 15.

Preferably, the motor 13 and the friction rollers 14 connected to its drive shaft 13a are respectively two groups, and the two groups of motors 13 and friction rollers 14 are symmetrically distributed on both sides of the rear wheel 15, thereby forming a pushing force for the rear wheel 15. As a result, this not only increases the power of the driving device 1 of the electric scooter, but also makes the force on the rear wheel 15 more uniform, which improves the safety and facilitates the operation. The friction roller 14 is a tapered roller, and the peripheral side 14a of the tapered roller can have a larger area of contact with the slope surface 15b of the rear wheel, thereby generating a greater driving force for the rear wheel 15 and improving the work of the motor 13. Efficiency makes it possible to achieve good driving effect and safety with a simple structure.

In conjunction with Fig. 1, Fig. 2 and Fig. 3, a detailed description is made on the application of the driving device 1 of the electric scooter of the present invention to the working process of the electric scooter: when the operator holds the handlebar 21, one or both feet step on the Pedal 22, just can operate electric scooter 20, operator can carry out speed control by setting the speed adjustment button 23 on handlebar 21, and speed adjustment button 23 transmits electric signal to central processing unit CPU, The central processing unit CPU receives the electrical signal from the adjustment button 23 and sends out a control signal to control the two motors 13 to rotate at a set speed, and the rotation directions of the two motors 13 are opposite. The rotation of the motor 13 will drive the two tapered friction rollers 14 fixed on the drive shaft 13a of the motor 13 to rotate, and the rotation of the friction rollers 14 will drive the rear wheel 15 in contact with it to rotate under the action of friction, so that the electric skateboard Car 20 moves.

The driving device 1 of the electric scooter of the present utility model drives the rear wheel 15 due to the way that the peripheral side 14a of the friction roller is in conflict with the slope surface 15b of the rear wheel 15, which not only simplifies the structure of the overall device, but also does not affect the rear wheel 15. The bearing surface 15a causes wear and tear, and also increases the contact area between the friction roller 14 and the rear wheel 15, thereby improving the working efficiency of the motor 13. In addition, because its friction roller 14 is directly connected with the motor drive shaft 13a, it is easy to flexibly control the electric motor. The state of the scooter.

The connection and functions of the central processing unit CPU controlled by the handlebar, pedal and speed control button of the electric scooter involved in the driving device of the electric scooter described in the utility model are common technologies in the art. It is well known to the personnel, so no detailed description will be given here.

What is disclosed above is only the preferred embodiment of the present utility model, and of course the scope of rights of the present utility model cannot be limited by this. Therefore, equivalent changes made according to the patent scope of the utility model are still covered by the utility model. scope.

Claims (7)

1. A driving device of an electric scooter, suitable for driving the rear wheel connected to the pedal rear of the electric scooter, the rear wheel has a supporting surface in contact with the ground and slope surfaces on both sides of the supporting surface, and the driving device includes : housing, motor and friction roller, the motor is installed below the housing, and has a drive shaft, characterized in that: the drive shaft extends to one side of the rear wheel, and the friction roller is connected to the drive shaft , and the peripheral side of the friction roller is in conflict with the slope surface of the rear wheel. 2. The driving device of the electric scooter according to claim 1, wherein the housing comprises a tray and a rear wheel bracket, and the tray is connected between the pedal and the rear wheel bracket. 3. The driving device of the electric scooter according to claim 2, wherein the rear wheel bracket has a groove, the rear wheel is pivotally connected in the groove, and the motor is connected to the between the tray and the rear wheel bracket. 4. The driving device of an electric scooter according to claim 2, wherein the rear wheel bracket has a receiving hole, and the drive shaft of the electric motor passes through the receiving hole and stretches toward the rear wheel. side. 5. The driving device of the electric scooter according to claim 1, characterized in that: the electric motor and the friction rollers connected to the driving shaft are respectively two groups. 6. The driving device of the electric scooter according to claim 5, wherein the two groups of motors and friction rollers are symmetrically distributed on both sides of the rear wheel. 7. The driving device of the electric scooter according to claim 1, wherein the friction roller is a tapered roller.

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