CN2095798U - Power device for electric bicycle - Google Patents
Power device for electric bicycle Download PDFInfo
- Publication number
- CN2095798U CN2095798U CN91221403U CN91221403U CN2095798U CN 2095798 U CN2095798 U CN 2095798U CN 91221403 U CN91221403 U CN 91221403U CN 91221403 U CN91221403 U CN 91221403U CN 2095798 U CN2095798 U CN 2095798U
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- wheel
- worm
- drive motor
- speed reduction
- reduction gearing
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Abstract
The utility model relates to a power device for an electric treading bicycle, comprising the combination of bracing frames, a motor, a retarding mechanism and a chain wheel mechanism. The shaft of the motor is a worm shaft, the retarding mechanism is composed of a worm wheel engaged with the worm shaft, a retarding shaft, the body of a reducer casing and a pinion wheel, and the trinity of the chain wheel mechanism is composed of a gearwheel engaged with the pinion wheel, the chain wheel and the unidirectional clutch of a small free wheel; besides, the housing of the motor is integrated with the body of the reducer casing. The utility model which has the advantages of simple structure, light weight and operational safety can be applied to the supply of the motive power and the transmission of a treading bicycle.
Description
The utility model relates to the engine installation of electric power bicycle, more clearly says so to be used for the engine installation that the electric power bicycle produces power with electric power and transmission of power driven its electric power bicycle that advances to bicycle.
The engine installation of the electric power bicycle in past, mostly with the permanent-magnet disk wound motor, with motor siamesed multi-stage gear speed reduction gearing, constituted with the coaxial sprocket wheel of the output shaft of speed reduction gearing.During the pedal back-pedal, realize one-way clutch by the small flywheel that is installed on the trailing wheel.This engine installation complex structure needs through slowing down more than three grades; Weight is big; Can only be installed on the special-purpose vehicle frame, commonality is poor, can not be installed on the ordinary bicycle, uses inconvenience also light inadequately, reliable.
The purpose of this utility model is to overcome above-mentioned shortcoming and defect, provides a kind of to need double reduction, simple in structure, lightweight; Can be installed on the ordinary bicycle vehicle frame, highly versatile directly acts on power on the sprocket wheel chain, and free-wheel clutch is installed on the sprocket wheel simultaneously; Use engine installation light, flexible, failure-free electric power bicycle.
In order to achieve the above object, the engine installation of the utility model electric power bicycle by be installed in bracing frame combination on the cycle frame, be fastened on drive motor that supporting frame group closes, be connected the speed reduction gearing of transmission with drive motor, the chain-wheel mechanism that is connected transmission with speed reduction gearing constituted.The axle that stretches out its shell of drive motor is for making the worm shaft of worm screw in the end.Speed reduction gearing by with worm shaft ingear worm gear, install worm gear deboost axle, put the deceleration box of worm shaft worm gear pairs and deboost axle and be installed in the miniature gears that stretches out on the outer deboost axle of drop-gear box and constitute.Chain-wheel mechanism by with the miniature gears of speed reduction gearing.Meshing big gear wheel, the sprocket wheel formation that is installed in small flywheel free-wheel clutch in the middle of the big gear wheel, advances with the concentric driving bicycle that rivets together of big gear wheel.The shell and the deceleration box of drive motor are made into integration by aluminum alloy.
The utility model places under the cycle frame, and drive motor changes electric power into transmission of power gives speed reduction gearing.Speed reduction gearing is made of two-stage, and one-level is a worm gear, and another level is that gear transmission is paid.But the actual processing of the worm screw here becomes worm shaft at an end of the axle of drive motor.Ring gear during the gear transmission is here paid is real to be and sprocket wheel riveting big gear wheel together.This simple in structure, light, reliable.The small flywheel free-wheel clutch of installing in the middle of the big gear wheel of chain-wheel mechanism of the present utility model can make rider when advancing with power driven or bipod arbitrarily park on the pedal, or free back-pedal and do not influence power driven, or drive pedal with manpower simultaneously and make power and the driving of manpower superposition.
The shell and the deceleration box of drive motor of the present utility model are made into integration by aluminum alloy, and compact conformation, volume are reduced.
Drive motor of the present utility model can be a variable-frequency motor, cooperates with frequency-variable controller just speed governing flexibly.Except, also can other method speed governing.When the switch that is installed on the hand controller on the handlebar was pressed, drive motor produced power, drove car load and advanced.Be late for then no power takeoff when the hand controller switch, can only depend on manpower to ride and advance.
The task of the engine installation of the utility model electric power bicycle comes to this and finishes.
The utility model has only double reduction, simple in structure, in light weight, use light, flexible, reliable.The utility model highly versatile, volume is little, and cycle frame is not had the special construction requirement, thereby can be installed on the ordinary bicycle.The utility model can be widely used in the power supply, transmission of electric power bicycle, also can be installed on the ordinary bicycle and it to be transform as the electric power bicycle.
Below in conjunction with embodiment and accompanying drawing thereof the utility model is done further explanation.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the scheme drawing of the chain-wheel mechanism of embodiment.
Among Fig. 1, the utility model embodiment makes up 2 by the bracing frame that is installed on the cycle frame 1, drive motor 3, and chain-wheel mechanism 4 and the speed reduction gearing of forming with worm gear 5, deboost axle 6, deceleration box 7, miniature gears 8 constitute.The axle of drive motor 3 is a worm shaft 9.Deceleration box 7 is made into integration by aluminum alloy with the shell of drive motor 3.
Among Fig. 2, chain-wheel mechanism 4 is made of the sprocket wheel 12 that rivets together with the miniature gears 8 ingear big gear wheels 10 of speed reduction gearing, small flywheel free-wheel clutch 11, with big gear wheel 10, rivet 13 is with big gear wheel 10 and sprocket wheel 12 riveteds, and small flywheel free-wheel clutch 11 is installed in the big gear wheel 10.
The utility model example structure is simple, volume is little, in light weight, highly versatile, can be widely used in the electric power bicycle or on the ordinary bicycle it is transform as the electric power bicycle.
Claims (2)
1, a kind of by the bracing frame combination that is installed on the cycle frame, be fastened on the drive motor that supporting frame group is closed, the speed reduction gearing that is connected transmission with drive motor, the engine installation that is connected the electric power bicycle that chain-wheel mechanism constituted of transmission with speed reduction gearing, the axle that stretches out its shell that it is characterized in that said drive motor is for making the worm shaft of worm screw in the end, speed reduction gearing by with worm shaft ingear worm gear, the deboost axle of worm gear is installed, put the deceleration box of worm shaft worm gear pairs and deboost axle and be installed in the miniature gears that stretches out on the outer deboost axle of drop-gear box and constitute, chain-wheel mechanism by with the big gear wheel of the pinion of speed reduction gearing, be installed in the middle small flywheel free-wheel clutch of big gear wheel, the sprocket wheel that advances with the concentric driving bicycle that rivets together of big gear wheel constitutes.
2,, it is characterized in that the shell of said drive motor and deceleration box make integral type by aluminum alloy according to the engine installation of the described electric power bicycle of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91221403U CN2095798U (en) | 1991-07-23 | 1991-07-23 | Power device for electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91221403U CN2095798U (en) | 1991-07-23 | 1991-07-23 | Power device for electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2095798U true CN2095798U (en) | 1992-02-12 |
Family
ID=4928396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91221403U Pending CN2095798U (en) | 1991-07-23 | 1991-07-23 | Power device for electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2095798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009856A1 (en) * | 2010-07-22 | 2012-01-26 | 中国航空技术广州有限公司 | Mid-ship power assistant device for electric bicycle |
-
1991
- 1991-07-23 CN CN91221403U patent/CN2095798U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012009856A1 (en) * | 2010-07-22 | 2012-01-26 | 中国航空技术广州有限公司 | Mid-ship power assistant device for electric bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication |