CN2558576Y - Coaxial speed change driving device - Google Patents
Coaxial speed change driving device Download PDFInfo
- Publication number
- CN2558576Y CN2558576Y CN 02233517 CN02233517U CN2558576Y CN 2558576 Y CN2558576 Y CN 2558576Y CN 02233517 CN02233517 CN 02233517 CN 02233517 U CN02233517 U CN 02233517U CN 2558576 Y CN2558576 Y CN 2558576Y
- Authority
- CN
- China
- Prior art keywords
- driving device
- outer ring
- gear
- main shaft
- coaxial speed
- 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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Abstract
The utility model relates to a coaxial variable speed driving device, which is characterized in that an internal gear is employed. The utility model has the structure that the main shaft is sleeved with a shaft sleeve and is connected with an active outer ring which are provided with a ring of internal tooth; the shaft sleeve is connected with a passive gear, two transition gears which are fixed on a support frame and are meshed with each other; one is in mesh with the passive gear and the other with the internal gear on the active outer ring. The device has the advantages of simple structure, few parts, low cost and failure rate, strong practicality, being convenient for installation and use. In addition, speed ratio of the device can be set at will according to design requirement.
Description
The utility model relates to a kind of to use the driving device of internal gear as characteristics, the coaxial speed-changing driving device of specifically a kind of transmitting ratio unmodified.
The CN90211608 patent disclosure a kind of bicycle coaxial speed variator, this device is fixed on co-axial bilayer rolling bead type sleeve shaft and internal axle sleeve and just takes turns, with just take turns synchronous rotation, the one end is fixed with the driving tooth wheels, outer shaft is contained on the internal axle sleeve, and the one end is fixed with driven wheel, and driving gear set is located by varying speed switch, give driven wheel with the power dragover of driving tooth wheels, make the bicycle operation.The ratio of the different-diameter by the gear on the gear on the exterior and interior axle sleeves and the driving gear set reaches the purpose of speed change.This device is the adjustable coaxial transmission system of a kind of converter speed ratio, because parts are more, structure is relatively complicated, thereby cost is higher, and fault rate is bigger.In addition, because the size of installing on bicycle is limit, maximum revolution ratio can only reach 1: 1.3.
The purpose of this utility model just provides a kind of simple in structure, convenient and practical coaxial speed-changing driving device, to overcome the deficiency of existing apparatus, is convenient to install and use.
The purpose of this utility model is achieved in that this coaxial speed-changing driving device is to be with axle sleeve on main shaft, on main shaft, also be connected with initiatively outer ring, one circle internal tooth is initiatively arranged on the outer ring, on axle sleeve, be connected with ring gear, two are fixed on the bracing frame and intermeshing transition gear, one is meshed with ring gear, and another is meshed with internal tooth on the outer ring initiatively.Main shaft rotates and drives initiatively outer ring rotation, and through the reverse drive of two transition gears, the rotating speed of outer ring rotates in the same way to be higher than initiatively to make ring gear, the final high speed revolution in the same way of realizing being socketed in the axle sleeve on the main shaft.
The revolution ratio of this device is to be determined by the diameter ratio of between cog in ring gear and the active outer ring.After active outer ring and ring gear were determined, its revolution ratio was also determined thereupon.But because initiatively the diameter of outer ring and ring gear all can be adjusted arbitrarily, so the revolution ratio of this device can break through 1: 1.3 boundary very like a cork, reaches needed setting value.If as the coaxial speed-changing driving device of bicycle, its revolution ratio can reach 1: 2.25.In addition, this apparatus structure is simple, and parts are few, so cost and fault rate are all lower, and practical, be convenient to install and use.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cutaway view.
As shown in Figure 1, initiatively outer ring 1 is the Wheel-type structure, the edge projection, and have a circle internal tooth.Initiatively captive joint with main shaft 4 by the key cooperation in outer ring 1.Be connected with axle sleeve 9 by bearings on main shaft 4, ring gear 2 cooperates an end that is fixed on axle sleeve 9 by key.Transition gear 5 and transition gear 6 are fixedly connected on the bracing frame 7 by rotating shaft respectively.This two transition gear is meshing with each other, and transition gear 5 is meshed with ring gear 2, and transition gear 6 is meshed with the internal tooth of outer ring 1 initiatively.As shown in Figure 2, do when clockwise rotating with main shaft 4 when active outer ring 1, transition gear 6 is done thereupon and is clockwise rotated, and 5 of transition gears are for rotating counterclockwise, drive ring gear 2 and axle sleeve 9 and do and the clockwise rotating in the same way of outer ring 1 initiatively, thereby realized coaxial speed change transmission in the same way.
If, then in ring gear 2, also flywheel mechanism should be installed, to guarantee that when main shaft stops operating axle sleeve still can be rotated further under effect of inertia with the driving device of this device as bicycle.In the case, be connected with wheel 10 on the axle sleeve 9.So just can save the transmission device of sprocket wheel chain, make a kind of axle drive shaft and wheel new bicycle together.
For guaranteeing the proper motion of main shaft, be provided with axle bearing 3,8 at the two ends of main shaft 4.This axle bearing can be a vehicle frame, is positioned at the both sides of cycle wheel.Correspondingly, bracing frame 7 also is fixedly connected on the vehicle frame, can constitute the coaxial speed-changing driving device that uses on the bicycle.
Claims (4)
1, a kind of coaxial speed-changing driving device, on main shaft (4), be with axle sleeve (9), it is characterized in that being connected with on the main shaft (4) initiatively outer ring (1), one circle internal tooth is initiatively arranged on outer ring (1), on axle sleeve (9), be connected with ring gear (2), two are fixed on that bracing frame (7) is gone up and intermeshing transition gear (5,6), and one is meshed with ring gear (2), and another is meshed with internal tooth on the active outer ring (1).
2, coaxial speed-changing driving device according to claim 1 is characterized in that in the ring gear (2) flywheel mechanism being installed.
3, coaxial speed-changing driving device according to claim 2 is characterized in that being connected with on the axle sleeve (9) wheel (10).
4, coaxial speed-changing driving device according to claim 3 is characterized in that the two ends of main shaft (4) are provided with axle bearing (3,8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233517 CN2558576Y (en) | 2002-04-29 | 2002-04-29 | Coaxial speed change driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233517 CN2558576Y (en) | 2002-04-29 | 2002-04-29 | Coaxial speed change driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558576Y true CN2558576Y (en) | 2003-07-02 |
Family
ID=33708631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02233517 Expired - Fee Related CN2558576Y (en) | 2002-04-29 | 2002-04-29 | Coaxial speed change driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558576Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355623C (en) * | 2005-07-22 | 2007-12-19 | 罗明端 | Foot operated speed changer of bicycle |
| CN105329401A (en) * | 2015-11-29 | 2016-02-17 | 四川星灵科技有限公司 | Chain plate speed changer of bicycle central shaft |
| CN109404499A (en) * | 2018-09-26 | 2019-03-01 | 湖南科洋农机制造有限公司 | A kind of driving speed change gear of agricultural machinery |
-
2002
- 2002-04-29 CN CN 02233517 patent/CN2558576Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355623C (en) * | 2005-07-22 | 2007-12-19 | 罗明端 | Foot operated speed changer of bicycle |
| CN105329401A (en) * | 2015-11-29 | 2016-02-17 | 四川星灵科技有限公司 | Chain plate speed changer of bicycle central shaft |
| CN109404499A (en) * | 2018-09-26 | 2019-03-01 | 湖南科洋农机制造有限公司 | A kind of driving speed change gear of agricultural machinery |
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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 |