CN2151095Y

CN2151095Y - Electric bicycle transmission structure

Info

Publication number: CN2151095Y
Application number: CN92241244U
Authority: CN
Inventors: 魏益堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-17
Filing date: 1992-11-17
Publication date: 1993-12-29
Anticipated expiration: 2002-11-17

Abstract

A transmission structure of an electric bicycle comprises a transmission wheel and a transmission chain which are arranged on one side of the wheel center of a rear wheel of a bicycle body, and the rear wheel can be rotated by pedaling; the method is characterized in that: the other side of the wheel center of the rear wheel extends to form a sleeve joint part which can be sleeved with a second driving wheel and forms a linkage relation with the motor of the vehicle body by a second driving chain; the utility model discloses a pedal and motor adopt independent drive wheel and drive chain to drive the rear wheel respectively and rotate, and suitable specification can be selected for use respectively to drive wheel and drive chain, and it is required to cooperate the behaviour in service completely, and two sets of drive wheels and drive chain set up respectively in rear wheel core both sides, absolutely can not touch each other.

Description

Motorcycle transmission

The utility model relates to a kind of Electrical Bicycle, particularly relates to a kind of Electrical Bicycle drive mechanism.

The structure of Electrical Bicycle comprises car body substantially, pedal transmission mechanism, electrical motor and electrically operated transmission device, seeing also Fig. 1 is first generation Electrical Bicycle drive mechanism, it is the transmission of strand bar, front gear 11 its inside and outside two circles that promptly are car body all are provided with double wedge, utilizing single chain 12 to drive trailing wheel rotates, and electrical motor 13 can drive miniature gears 131, and the inner ring double wedge of miniature gears 131 and gear 11 meshes and interlock, stretcher 14 interlock connecting shafts 15 rotate, connecting shaft 15 is provided with non-return device with the center fit interlock of gear and the position of both fits, make its unidirectional only interlock, electrical motor 13 also must be provided with non-return device in addition, reaches the foot-operated electrical motor that reaches whereby and all come transmission, yet the type of drive of the single chain of this kind there is following shortcoming with single chain:

1. the complex structure of gear keeps in repair difficult.

2. the load of chain increases the weight of, and damages easily.

Usually 3. foot-operated different with the power of electrical motor, so required chain size is also different, use single chain to be difficult to then meet simultaneously that both are required, and when foot-operated when using simultaneously with electrical motor, chain is difficult to bear more.

Because the Electrical Bicycle drive structure of strand bar is unsatisfactory in the use, therefore the drive structure that develops double-stranded bar is also arranged, yet double-stranded bar drive structure in the past is owing to construct the bad of space at present, two chains touch easily, need several gears to be strutted, when loosening, need be tightened, not only textural very complicated and and very not convenient on using yet.

Main purpose of the present utility model is to provide a kind of Electrical Bicycle transmission, with the type of drive of double-stranded bar, reaches the foot-operated and motor designs of chain perfect fitting but make, and closes the demand in the user fully, and is unlikely over load and damage easily.

Another main purpose of the present utility model is to provide a kind of Electrical Bicycle drive mechanism, makes the unitary construction that reaches double-stranded bar type of drive more simple, the effect of making easily and keeping in repair.

For achieving the above object, the utility model Electrical Bicycle driving system, it includes power wheel and the driving chain of being located at car body trailing wheel core wheel one side substantially, makes it can be by foot-operated and rotate trailing wheel; It is characterized in that: trailing wheel core wheel opposite side is extended with the socket part, but make its socket second power wheel and become continuous action relation with the electrical motor of car body by second driving chain, and the position of second power wheel and the socket of trailing wheel core wheel is provided with non-return device, makes to reach between the two unidirectional rotation only.

By above structure, the foot-operated electrical motor that reaches of the present utility model adopts independently power wheel and the rotation of driving chain drive trailing wheel respectively, so power wheel and driving chain can be selected suitable specification respectively for use, the perfect fitting service condition is required, and two groups of power wheels and driving chain are the both sides that are arranged at the trailing wheel core wheel separately, can never touch mutually, must not strutted or adjust by any element, unitary construction is simplified a lot of, and is more easy on making and keeping in repair.

Be elaborated below by most preferred embodiment and accompanying drawing drive structure to Electrical Bicycle of the present utility model, in the accompanying drawing:

Fig. 1 is an Electrical Bicycle drive structure in the past.

Fig. 2 is the utility model Electrical Bicycle transmission combination figure.

Fig. 3 is the utility model Electrical Bicycle running part exploded drawings.

Fig. 4 is the block diagram of the second power wheel another side of the utility model Electrical Bicycle transmission.

See also Fig. 2, the utility model Electrical Bicycle driving system, include power wheel 30 and the driving chain 40 of being located at car body trailing wheel core wheel 20 1 sides, it can make trailing wheel rotate by riding, and trailing wheel core wheel 20 is to be articulated on the back skeleton 80 of car body by wheel shaft 90.

Please cooperate and consult Fig. 3,4, principal character of the present utility model is: the opposite side of trailing wheel core wheel 20 is extended with socket part 21, but its socket second power wheel 50 and become continuous action relation by second driving chain 60 and with the electrical motor of car body, and the end of socket part 21 is provided with card ditch 211, can establish C shape ring 201 to fix second power wheel 50 and socket part 21, and 90 on socket part 21 and wheel shaft are provided with bearing 203, the sleeve joint hole wall of second power wheel 50 is provided with non-return device 51, make reach with 20 sockets of trailing wheel core wheel after unidirectional only between the two interlock, so when with foot-operated when making 20 rotations of trailing wheel core wheel, second power wheel 50 can not driven, and the two sides, front and back of second power wheel 50 all is provided with dustproof gasket 202.

By above structure, the foot-operated electrical motor that reaches of the present utility model adopts separately independently power wheel and the rotation of driving chain drive trailing wheel respectively, so power wheel 30, the driving chain 40 and second power wheel 50, second driving chain 60 can be selected suitable specification respectively for use, required (about 1/3 horsepower of the power of service condition that perfect fitting is electronic or foot-operated, institute's use chain needs thicker, and foot-operated approximately only 1/6 horsepower, so it is thinner that institute's use chain needs), more can alleviate chain load, increase the service life, and two groups of power wheels and driving chain are arranged at the both sides of trailing wheel core wheel 20 separately, can never bump mutually and melt, must do not strutted or adjust by any element, unitary construction be simplified a lot of, and is easier on making and keeping in repair.

In sum, the utility model Electrical Bicycle drive structure really can reach the effect and the purpose of expection by disclosed structure.

Claims

1. A transmission structure of an electric bicycle, comprising a vehicle body, a motor and a transmission structure, the transmission structure comprising a transmission wheel and a transmission chain arranged on one side of the center of the rear wheel of the vehicle body;

It is characterized in that: the other side of the wheel center of the rear wheel is provided with a socket, the socket is provided with a second transmission wheel, a second transmission chain is provided between the second transmission wheel and the motor of the vehicle body, and the motor directly The second transmission wheel is driven, and the position where the second transmission wheel and the rear wheel center are socketed is provided with a one-way device, and the second transmission wheel and the rear wheel center are unidirectionally linked.