CN2561676Y

CN2561676Y - Electric bicycle with rim with outer teeth

Info

Publication number: CN2561676Y
Application number: CN 02252909
Authority: CN
Inventors: 张孟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-30
Filing date: 2002-08-30
Publication date: 2003-07-23
Anticipated expiration: 2012-08-30

Abstract

The utility model relates to a tooth-ring electric bicycle, which is mainly characterized in that wheels have external gear rings fabricated on the rim thereof, a motor and gears engaged with the external gear rings of the wheel are arranged on a support which is directly fixedly arranged on the frame of the bicycle. The utility model has simple structure, small engagement force, less start time, high start speed, labor saving, electricity saving and long running mileage.

Description

The gear ring type Electrical Bicycle

Technical field

The utility model relates to the Electrical Bicycle field, especially a kind of gear ring type Electrical Bicycle.

Background technology

Existing Electrical Bicycle is to adopt the transmission shaft of motor-driven bicycle to realize.Its shortcoming is: such bicycle must have enough torsion to drive axle for bicycle, causes drive motor power big, big energy-consuming, and the motor own wt is big, and battery weight is also big, causes the weight ratio of Electrical Bicycle self bigger.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of rational in infrastructure, laborsaving power saving, lightweight gear ring type Electrical Bicycle.

The purpose of this utility model is achieved in that

Wheel is that rim is the wheel that is shaped on external toothing, and gear and this support that motor and engagement wheel external toothing are installed on the support directly are packed on the cycle frame.

Motor shaft end directly installs gear; The flute profile of the external toothing that wheel is made can be straight-tooth, helical teeth and herringbone tooth.

Advantage of the present utility model and good effect are:

1. the bicycle gear ring wheel directly made with methods such as injection moulding or die casting of rim by motor-driven gear engagement external toothing, drives the bicycle quick motion, and relatively simple for structure, engagement force is smaller, and run up time is few, and toggle speed is fast.

2. the power of motor of Xu Yaoing is smaller, thereby the motor weight ratio is less, and battery weight also alleviates a lot, and bicycle complete machine weight is also smaller.

3. save the manpower and the energy, laborsaving, power saving, distance travelled are long, are the regeneration products that has bicycle now.

Description of drawings

Fig. 1 is the utility model overall structure scheme drawing;

Fig. 2 is the A enlarged drawing of the utility model Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing the utility model embodiment is further described:

The rim of this bicycle adopts " injection moulding ", " die casting " etc. directly to make the external toothing wheel of tooth, and this external toothing wheel available metal or non-metallic material are made.Be fixed with a support 1 on these cycle frame 6 cant beams, this support can be by modes such as screw, rivet and cant beam be solidly installed (screw or rivet etc. be not shown in the drawings), motor 7 is installed on support, this motor shaft directly installs gear 2, be that motor is directly by the motor shaft driven wheel, also can pass through a speed-changing mechanism driven wheel as required, adopt direct drive mode in the present embodiment.The external toothing 4 of this gear mesh wheel, flute profile straight-tooth, helical teeth and the herringbone tooth of this external toothing are direct tooth type shown in the present embodiment.Car band 3 crouches in external toothing.Battery 5 is packed in behind the bicycle on the vehicle frame.

Principle of work of the present utility model is:

Battery provides working power for motor, the rotation of motor rotating band moving gear, the external toothing of this gear mesh wheel, drive wheels motion.The utility model is relatively simple for structure, and engagement force is smaller, and run up time is few, and toggle speed is fast, and laborsaving, power saving, distance travelled are long.

Claims

1. gear ring type Electrical Bicycle, constitute by vehicle frame, wheel, support, motor, gear, battery, it is characterized in that: wheel is that rim is the wheel that is shaped on external toothing, and gear and this support that motor and engagement wheel external toothing are installed on the support directly are packed on the cycle frame.

2. gear ring type Electrical Bicycle according to claim 1 is characterized in that: motor shaft end directly installs gear.

3. gear ring type Electrical Bicycle according to claim 1 is characterized in that: the flute profile of the external toothing that wheel is made can be straight-tooth, helical teeth and herringbone tooth.