CN2576582Y

CN2576582Y - Gear-ring type internal-tooth electric bicycle

Info

Publication number: CN2576582Y
Application number: CN 02282551
Authority: CN
Inventors: 张孟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-16
Filing date: 2002-10-16
Publication date: 2003-10-01
Anticipated expiration: 2012-10-16

Abstract

The utility model relates to a gear ring type inner tooth electric bicycle. The utility model is characterized in that a rim of a wheel is provided with an inner gear ring. A motor and a gear engaged with the inner gear ring of the wheel are arranged on a bracket which is directly fixedly arranged on a cycle frame. The utility model has the advantages of simple structure, small engaging force, little starting time, high starting speed, labor saving, electricity saving and long operating distance.

Description

Gear ring type internal tooth Electrical Bicycle

Technical field

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

The purpose of this utility model is achieved in that

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

Motor shaft end directly installs gear; The flute profile of the internally toothed annulus 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 direct-drive gear mesh internally toothed annulus, 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. motor can drive by one-sided internal tooth by gear, but also the bilateral internal tooth drives.

3. 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.

4. 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 utility model Figure 1A-A cutaway view.

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 internally toothed annulus wheel of tooth, and this internally toothed annulus wheel available metal or non-metallic material are made.Be fixed with a support 2 on the cant beam of this cycle frame 1, 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 3 is installed on support, motor shaft end directly installs gear 7, 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 and be one-sided driving internally toothed annulus.For need realizing that also bilateral drives than the bicycle of large driving force.The internally toothed annulus 6 of this gear mesh wheel, the flute profile of this internally toothed annulus can be straight-tooth, helical teeth and herringbone tooth, is direct tooth type shown in the present embodiment.Car band 5 crouches in the internally toothed annulus wheel.Battery 4 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 internally toothed annulus 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 internal tooth 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 internally toothed annulus, and gear and this support that motor and engagement wheel internally toothed annulus are installed on the support directly are packed on the cycle frame.

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

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