CN201264708Y

CN201264708Y - Front-driving electric bicycle

Info

Publication number: CN201264708Y
Application number: CNU2008201883346U
Authority: CN
Inventors: 张晓舜
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-19
Filing date: 2008-09-19
Publication date: 2009-07-01
Anticipated expiration: 2018-09-19

Abstract

The utility model relates to a front driving type electric bicycle, which has the advantages of simple and convenient maintenance and repair and light integral weight, and is suitable for electric bicycles with small wheel diameter. The electric bicycle comprises a frame, wherein, a front fork is arranged at the front end of the frame; a front wheel is arranged on the front fork; the rotating axle of the front wheel is a front axle; a rear wheel is arranged at the rear end of the frame; a motor is fixedly arranged at one end of the front fork; a driving sprocket is arranged on a driving axle of the motor; one end of the front axle is provided with a toothless flywheel; a chain disc is arranged outside the toothless flywheel; a chain is in driving connection between the chain disc and the driving sprocket; one end of the front fork is a motor fixing seat, and a motor is fixed on the motor fixing seat. The electric bicycle can not generate damping by magnetic action due to motor rotation during manual driving, has convenient maintenance and repair, reduces the integral weight, and is suitable for vehicles with small wheel diameter. The prior technical scheme is inconvenient to realize the vehicles with small wheel diameter and spoke braiding, but the technical scheme can realize that.

Description

Front-driving electric bicycle

Technical field

The utility model relates to a kind of Electrical Bicycle, relates in particular to a kind of front-driving electric bicycle.

Background technology

The Electrical Bicycle of Xiao Shouing has rear-guard dynamic formula and forerunner's dynamic formula in the market, but all is based on wheel hub motor basically, when motor rotates, be subjected to magnetic action can produce resistance, under the on-electric state, prior art is to eliminate resistance by the isolator in the wheel hub motor, prior art constructions, M R trouble, and added many weight to car load, but also incompatibility steamboat footpath Electrical Bicycle, from outward appearance, the hub-type motor is big, and is not attractive in appearance; On making, if, then compile the spoke inconvenience with compiling spoke wheel.

Summary of the invention

The purpose of this utility model provides that a kind of M R is simple and convenient, complete vehicle weight is light and handy, be applicable to the front-driving electric bicycle of steamboat footpath Electrical Bicycle.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of front-driving electric bicycle comprises vehicle frame, and the vehicle frame front end is equipped with front fork, front-wheel is installed on the front fork, and the S. A. of front-wheel is a front axle, and the vehicle frame rear end is equipped with trailing wheel, it is characterized in that: front fork one end is installed with motor, and driving chain wheel is installed on the drive axle of motor; Front axle one end is equipped with anodontia flywheel, and anodontia flywheel is equipped with chain drum outward, is connected with chain between chain drum and the driving chain wheel.

Described front-driving electric bicycle is characterized in that: described front fork one end is a motor fixing seat, and motor is installed on the motor fixing seat.

The utility model is subjected to magnetic action to produce damping in the time of can not rotating owing to motor in the time of manually driven, maintenance and easy to maintenance, reduced complete vehicle weight, the utility model is applicable to the little car type in wheel footpath, little for the wheel footpath, as to need to compile spoke car type, the inconvenience of prior art scheme realizes, and the employing the technical program can realize.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the mounting structure scheme drawing of front fork and front-wheel in the utility model;

Fig. 3 is the drive mechanism scheme drawing of driving chain wheel and chain drum in the utility model.

In the accompanying drawing:

1, vehicle frame 2, front fork 3, motor fixing seat 4, motor

5, front-wheel 6, front axle 7, anodontia flywheel 8, chain drum

9, chain 10, trailing wheel 11, driving chain wheel

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is further described:

A kind of front-driving electric bicycle, as Fig. 1, Fig. 2, shown in Figure 3, comprise vehicle frame 1, vehicle frame 1 front end is equipped with front fork 2, front-wheel 5 is installed on the front fork 2, and the S. A. of front-wheel 5 is a front axle 6, and vehicle frame 1 rear end is equipped with trailing wheel 10, front fork 2 one ends are installed with motor 4, and driving chain wheel 11 is installed on the transmission shaft of motor 4; Front axle 6 one ends are equipped with anodontia flywheel 7, outside the anodontia flywheel 7 chain drum 8 are installed, and are connected with chain 9 between chain drum 8 and the driving chain wheel 11.Front fork 2 one ends are motor fixing seat 3, and motor 4 is installed on the motor fixing seat 3.

Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design concept; common engineering staff make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.

In the utility model, the combination of chain drum and anodontia flywheel is the sprocket wheel combination, and the sprocket wheel combination is located at the front-wheel flower-drum outside, the anodontia flywheel in four holes is fixed in the front axle outside, four holes are anodontia, and chain drum is equipped with in the flywheel outside, and its range of numbers of teeth is 25 teeth～135 teeth, and pitch range is 6.35mm to 12.7mm.

Motor fixing seat and front fork in the utility model are structure as a whole, and have both served as the effect of front fork fork leg, have played the effect of fixed electrical machinery again, in addition, also are drilled with the motor power-supply wire cable-through hole on the motor fixing seat.

Motor in the utility model adopts disc type electric machine, and motor is that anticlockwise direction rotates, and motor and motor fixing seat are developed the back and fixed, and it is the driving chain wheel of 6.35mm to 12.7mm that pitch range is housed on the motor transmission shaft, and range of numbers of teeth is 8 teeth～30 teeth.

The utility model adopts chain gear, and the pitch range of chain is 6.35mm to 12.7mm, and the length of chain is decided by the range of numbers of teeth of driving chain wheel, the range of numbers of teeth of chain drum and width between centers between the two, and its width between centers scope is 80～350mm.

The utility model has reduced complete vehicle weight, the about 35Kg of prior art, the about 12Kg of present technique.

Claims

1, a kind of front-driving electric bicycle, comprise vehicle frame (1), vehicle frame (1) front end is equipped with front fork (2), front-wheel (5) is installed on the front fork (2), the S. A. of front-wheel (5) is front axle (6), vehicle frame (1) rear end is equipped with trailing wheel (10), it is characterized in that: front fork (2) one ends are installed with motor (4), and driving chain wheel (11) is installed on the transmission shaft of motor (4); Front axle (6) one ends are equipped with anodontia flywheel (7), and anodontia flywheel (7) is outer to be equipped with chain drum (8), is connected with chain (9) between chain drum (8) and the driving chain wheel (11).

2, front-driving electric bicycle according to claim 1 is characterized in that: described front fork (2) one ends are motor fixing seat (3), and described motor (4) is installed on the motor fixing seat (3).