CN2685225Y - Electric Bicycle variable speed drive box - Google Patents
Electric Bicycle variable speed drive box Download PDFInfo
- Publication number
- CN2685225Y CN2685225Y CNU2004200150759U CN200420015075U CN2685225Y CN 2685225 Y CN2685225 Y CN 2685225Y CN U2004200150759 U CNU2004200150759 U CN U2004200150759U CN 200420015075 U CN200420015075 U CN 200420015075U CN 2685225 Y CN2685225 Y CN 2685225Y
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- CN
- China
- Prior art keywords
- transfer clutch
- power
- variable speed
- driven gear
- sprocket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structure Of Transmissions (AREA)
Abstract
The utility model discloses an electric bicycle variable speed drive box, which comprises a generator and a variable speed drive mechanism, wherein the variable speed drive mechanism comprises an input drive gear wheel of the generator, a variable speed driven gear, a unidirectional ratchet clutch, a manual minor sprocket, a power take-off sprocket and a drive shaft. The bicycle variable speed drive box is characterized in that one end of a generator output shaft is provided with the input drive gear wheel which is meshed with the variable speed driven gear. A plurality of transmissible deflector rods which are movably matched in the outer teeth of the unidirectional ratchet clutch are arranged evenly at the lower end of the geared ring of the variable speed driven gear. The mid hole of the unidirectional ratchet clutch is tightly and movably matched on the centre section of the drive shaft. One side of the unidirectional ratchet clutch is provided with the manual minor sprocket and the power take-off minor sprocket which are coaxially connected, and one end of the drive shaft, which is extended out of the box cover of the electric bicycle variable speed drive box, is tightly and movably matched with the power take-off sprocket.
Description
Technical field
The utility model relates to the speed change drive mechanism device of Electrical Bicycle, specifically refers to the change gearbox of Electrical Bicycle, and it has electronic, power-assisted (manpower and electronic interlock), manpower multiple use.
Background technology
The existing change gearbox that is used for Electrical Bicycle is the device that is combined with multi-stage speed-reducing mechanism by electrical motor, and is one of component part wherein with original axis of bicycle, and by chain gear, drive wheels is travelled.What described electrical motor generally adopted is the DC brush high-speed electric expreess locomotive, and its general rotating speed is 3000-4500r/min, and minimum speed also surpasses 2000r/min, and its speed change type of drive is minimum to be two stage speed change.Therefore just exist change gearbox structure more complicated, volume big, the shortcoming that Heavy Weight, productive costs are high relatively.
Summary of the invention
For overcome existing change gearbox structure more complicated, volume is big, the shortcoming that Heavy Weight, productive costs are high relatively, the purpose of this utility model provide the one-level change gearbox of a kind of middle brushless no position detector motor of low speed (rotating speed is lower than 1000r/min) for the single direction ratchet clutch of propulsion source, spur gear drive.
The technical scheme in the invention for solving the above technical problem is achieved in that a kind of Electrical Bicycle change gearbox, comprise motor, variable transmission mechanism, described variable transmission mechanism is imported driving gear, speed change driven gear, single direction ratchet power-transfer clutch, manpower minor sprocket, power output sprocket, transmission shaft by motor and is formed; Its feature is: motor output shaft one end is provided with the input driving gear, driving gear is engaged in the speed change driven gear, speed change driven gear gear ring lower end evenly is provided with several transmission driving levers, the activity of transmission driving lever is matched with in the outer ring tooth of single direction ratchet power-transfer clutch, the tight activity of through hole at single direction ratchet power-transfer clutch middle part is engaged in the middle part of transmission shaft, single direction ratchet power-transfer clutch one side is provided with coaxial manpower takeoff output minor sprocket, transmission shaft stretches out the change gearbox case lid outside one end, cooperates with power output sprocket is closely movable.
The upper end of the change gearbox described in the such scheme is provided with manpower and drives axis, drive axis and be provided with manpower driving hinge wheel power-transfer clutch, the hinge wheel power-transfer clutch closely cooperates and is fixed on the positioning key that drives axis, the hinge wheel power-transfer clutch drives minor sprocket by messenger chain, and the axis left end is equipped with the upright square sensor of Hall.
Speed change driven gear middle part described in the such scheme is provided with bearing seat, and this bearing seat cooperates with outside race is closely movable.
Transmission shaft described in the such scheme is respectively equipped with tail end bearing, speed change driven gear bearing, takeoff output side bearing according to diameter, is respectively equipped with tight movable single direction ratchet power-transfer clutch positioning key, minor sprocket positioning key, the power output sprocket positioning key of cooperating on the transmission shaft.Change gearbox casing and case lid are bolted to connection.Motor is bolted to connection the side in the change gearbox casing.
Good effect of the present utility model is: because the brushless no position detector motor of employing low speed (≤1000r/min), therefore rotating speed is low, speed change is few, and the transmission of one-level speed change is only arranged, and compares with multistage transmission gearbox, watt loss reduces at double, the horsepower output height of power.Volume is little, and parts are few, and than like product transmission gearbox minimizing weight 10-20% in the market, productive costs reduces more than 20%.The two clutch functions that also kept similar change gearbox, manpower driving axis does not rotate when electronic; When no electricity was ridden, motor did not rotate, and during power-assisted, rode by torque sensor realization manpower, combination in electronic 1: 1.Because it is the such scheme reasonable in design, so also more laborsaving than ordinary bicycle when the manpower driving is ridden.It has electronic, power-assisted (manpower and electronic interlock), manpower multiple use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a structural representation of the present utility model.
Shown in the figure 1, motor; 2, input driving gear; 3, bolt; 4, speed change driven gear; 5, transmission driving lever; 6, pawl clutch; 7, minor sprocket; 8, power output sprocket; 9, transmission shaft; 10, power output sprocket positioning key; 11, minor sprocket positioning key; 12, takeoff output side bearing; 13, speed change driven gear bearing; 14, bearing seat; 15, manpower drives axis; 16, manpower hinge wheel positioning key; 17, manpower hinge wheel power-transfer clutch; 18, chain; 19, case lid; 20, bolt; 21, casing; 22, Hall torque sensor; 23, transmission shaft tail end bearing; 24, pawl clutch positioning key.
The specific embodiment
The utility model Electrical Bicycle change gearbox, comprise motor, variable transmission mechanism, described variable transmission mechanism is made up of input driving gear 2, speed change driven gear 4, single direction ratchet power-transfer clutch 6, manpower minor sprocket 7, power output sprocket 8, the transmission shaft 9 of motor 1; Its feature is: motor output shaft one end is provided with input driving gear 2, driving gear 2 is engaged in speed change driven gear 4, speed change driven gear 4 gear ring lower ends evenly are provided with three transmissions and dial and close 5,5 activities of transmission driving lever are matched with in the outer ring tooth of single direction ratchet power-transfer clutch 6, the tight activity of through hole at single direction ratchet power-transfer clutch 6 middle parts is engaged in the middle part of transmission shaft 9, single direction ratchet power-transfer clutch 6 one sides are provided with coaxial manpower takeoff output minor sprocket 7, transmission shaft 9 stretches out change gearbox case lid 18 outsides one end, cooperates with power output sprocket 8 is closely movable.The upper end of described change gearbox is provided with manpower and drives axis 15, drive axis 15 and be provided with manpower driving hinge wheel power-transfer clutch 17, hinge wheel power-transfer clutch 17 closely cooperates and is fixed on the positioning key 16 that drives axis 15, hinge wheel power-transfer clutch 17 drives minor sprocket 7 by messenger chain 18, and the axis left end is equipped with Hall torque sensor 22.Described speed change driven gear 4 middle parts are provided with bearing seat 14, and this bearing seat 14 cooperates with bearing 13 outer rings are closely movable.Described transmission shaft 9 is respectively equipped with tail end bearing 23, speed change driven gear bearing 13, takeoff output side bearing 12 according to diameter, is respectively equipped with tight movable single direction ratchet power-transfer clutch 6 positioning keys 24, minor sprocket 7 positioning keys 11, power output sprocket 8 positioning keys 10 of cooperating on the transmission shaft 9.Change gearbox casing 21 is captiveed joint by bolt 20 with case lid 19.Motor 1 is fixedly connected on a side of change gearbox casing 21 by bolt 3.
The principle of work of this scheme: the input driving gear of motor one end drives the speed change driven gear and rotates, and the transmission driving lever on the speed change driven gear drives the single direction ratchet power-transfer clutch and rotates synchronously by the big minor sprocket on the positioning key drive transmission shaft of transmission shaft.
Claims (6)
1, a kind of Electrical Bicycle change gearbox, comprise motor (1), variable transmission mechanism, described variable transmission mechanism is imported driving gear (2), speed change driven gear (4), single direction ratchet power-transfer clutch (6), manpower minor sprocket (7), power output sprocket (8), transmission shaft (9) by motor and is formed; It is characterized in that: motor (1) output shaft one end is provided with input driving gear (2), driving gear (2) is engaged in speed change driven gear (4), speed change driven gear (4) gear ring lower end evenly is provided with several transmission driving levers (5), transmission driving lever (5) activity is matched with in the outer ring tooth of single direction ratchet power-transfer clutch (6), the tight activity of through hole at single direction ratchet power-transfer clutch (6) middle part is engaged in the middle part of transmission shaft (9), single direction ratchet power-transfer clutch (6) one sides are provided with coaxial manpower takeoff output minor sprocket (7), transmission shaft (9) stretches out change gearbox case lid (19) outside one end, cooperates with power output sprocket (8) is closely movable.
2, according to the described a kind of Electrical Bicycle change gearbox of claim 1, it is characterized in that: the upper end of change gearbox is provided with manpower and drives axis (15), drive axis (15) and be provided with manpower driving hinge wheel power-transfer clutch (17), hinge wheel power-transfer clutch (17) closely cooperates and is fixed on the positioning key (16) that drives axis (15), hinge wheel power-transfer clutch (17) drives minor sprocket (7) by messenger chain (18), and Hall torque sensor (22) is equipped with in the axis left side.
3, according to the described a kind of Electrical Bicycle change gearbox of claim 1, it is characterized in that: speed change driven gear (4) middle part is provided with bearing seat (14), and this bearing seat (14) cooperates with bearing (13) outer ring is closely movable.
4, according to the described a kind of Electrical Bicycle change gearbox of claim 1, it is characterized in that: transmission shaft (9) is respectively equipped with tail end bearing (23) according to diameter, speed change driven gear bearing (13), takeoff output side bearing (12) is respectively equipped with tight movable single direction ratchet power-transfer clutch positioning key (24), minor sprocket positioning key (11), the power output sprocket positioning key (10) of cooperating on the transmission shaft (9).
5, a kind of Electrical Bicycle change gearbox according to claim 1 and 2 is characterized in that: change gearbox casing (21) is captiveed joint by bolt (20) with case lid (19).
6, according to the described a kind of Electrical Bicycle change gearbox of claim 1, it is characterized in that: motor (1) is fixedly connected on a side of change gearbox casing (21) by bolt (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200150759U CN2685225Y (en) | 2004-01-20 | 2004-01-20 | Electric Bicycle variable speed drive box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200150759U CN2685225Y (en) | 2004-01-20 | 2004-01-20 | Electric Bicycle variable speed drive box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685225Y true CN2685225Y (en) | 2005-03-16 |
Family
ID=34668684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200150759U Expired - Fee Related CN2685225Y (en) | 2004-01-20 | 2004-01-20 | Electric Bicycle variable speed drive box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685225Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348454C (en) * | 2005-10-19 | 2007-11-14 | 哈尔滨工业大学 | Gearing reducer made of magnesium alloy for electric children vehicle, and art for commercialized prodn. of same |
| CN105743279A (en) * | 2016-04-26 | 2016-07-06 | 苏州盛亿电机有限公司 | Compact central motor for electric bicycle |
-
2004
- 2004-01-20 CN CNU2004200150759U patent/CN2685225Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348454C (en) * | 2005-10-19 | 2007-11-14 | 哈尔滨工业大学 | Gearing reducer made of magnesium alloy for electric children vehicle, and art for commercialized prodn. of same |
| CN105743279A (en) * | 2016-04-26 | 2016-07-06 | 苏州盛亿电机有限公司 | Compact central motor for electric bicycle |
| CN105743279B (en) * | 2016-04-26 | 2018-06-29 | 苏州盛亿电机有限公司 | Electric bicycle compact built-in motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |