CN2721424Y - Linked flywheel and hub device - Google Patents
Linked flywheel and hub device Download PDFInfo
- Publication number
- CN2721424Y CN2721424Y CN 200420026502 CN200420026502U CN2721424Y CN 2721424 Y CN2721424 Y CN 2721424Y CN 200420026502 CN200420026502 CN 200420026502 CN 200420026502 U CN200420026502 U CN 200420026502U CN 2721424 Y CN2721424 Y CN 2721424Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- flywheel
- hub
- flower
- drum body
- 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 - Lifetime
Links
Images
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
Abstract
A linked flywheel and hub device relates to a bicycle linked flywheel and hub ratchet-driver, which is composed of a shaft, a flywheel and hub body, a chainwheel, a spring, a driving pawl, a ratchet, an outer shaft barrier, a rolling shaft and an iron shot. The inner side is provided with teethed and the outside is provided with threaded ratchet rings. The shaft and an inner shaft barrier is an integral part. The inner side of the chainwheel is equipped with screws which are intermeshed and interlock fixed with the screws outside the ratchet. The ratchet ring is locked inside the flywheel and hub. The outside screws of the ratchet ring are intermeshed and interlock fixed with the inner screws of the flywheel and hub. The inner gears of the ratchet ring form a unidirectional engaging mechanism together with the driving pawl. The utility model can simplify the linked flywheel and hub ratchet-driver, make the processing and the assembly more convenient and increase the smooth degree of the flywheel and hub. The gap distance of the structure is contracted therefore, the size of the entire car can be appropriately contracted. The chainwheel is arbitrarily changeable and is also available to reduce the number of teeth to implement the accelerating effect. The real product is light, thin, short and small aiming to realize the destination of sophistication.
Description
Technical field the utility model relates to disjunctor flyings drum driving device, specially refers to the disjunctor flyings drum ratchet gearing of bicycle.
Background technology is before the utility model proposes, the disjunctor flyings drum ratchet gearing that is used for bicycle can be referring to accompanying drawing 2, in flower-drum body (1), the steel ball (5) and the steel bowl (6) that utilize jam nut (3) on the wheel shaft (2) and axle bumper (4) to fix two ends also can reduce friction in order to the concentricity that guarantees flower-drum body (1) and wheel shaft (2).There are external tooth and chain engages in the outside of sprocket wheel (7), and there is internal tooth the inboard.Ratchet pawl (8) is stuck on the ratchet (10) by spring (9).The internal tooth of the inboard of ratchet pawl (8) and sprocket wheel (7) forms one way engagement mechanism.Travelling forward of sprocket wheel (7) travels forward synchronously by ratchet pawl (8) drive ratchet (10).One side of the last nearly flower-drum body (1) of ratchet (10) and flower-drum body (1) are gone up a corresponding side all teeth, and these two groups of teeth are meshing with each other.Bolt of rear end plate (11) is meshing with each other with the internal tooth of ratchet (10), in order to the position of fixed ratchet wheel (10).When the traction that is subjected to chain when sprocket wheel (7) is rotated forward, the internal tooth of sprocket wheel (7) and ratchet pawl (8) engagement, ratchet pawl (8) just drives ratchet (10) and rotates forward, and then drive flower-drum body rotates forward.Other part of this disjunctor flyings drum ratchet gearing is more, and processing request is higher, and assembling is trouble.Bolt of rear end plate (11) has been installed in the flower-drum body simultaneously, the internal diameter of flower-drum body can not be too little, in the time will using the sprocket wheel of the less number of teeth, because the pitch of chain is a unmodified, sprocket wheel just need be done very for a short time, but the outer rim of sprocket wheel and inner edge can not be too approaching in order to avoid influence the mechanical strength of sprocket wheel, and the number of teeth on the sprocket wheel just can not be very little like this.The teeth number of sprocket of present this disjunctor flyings drum ratchet gearing is at 14 teeth, and can't change sprocket wheel.This in addition disjunctor flyings drum ratchet gearing to open shelves bigger, be generally the 100-120 millimeter, certainly will to adopt the wheel and the tire of broad.
Utility model content the purpose of this utility model provides a kind of new disjunctor flyings drum device.Its other part is fewer, and processing request is not too high, assembles also just more convenient.Simultaneously this new disjunctor flyings drum device has dwindled the shelves of opening of flower-drum.Also can adopt the sprocket wheel of the less number of teeth and change sprocket wheel easily.
The purpose of this utility model realizes by following technical measures.Disjunctor flyings drum device is with wheel shaft, and flower-drum body and sprocket wheel transmission piece are combined with mechanical means.Primary clustering is: wheel shaft, flower-drum body, sprocket wheel, ratchet ring, spring, ratchet pawl, ratchet, axle bumper and antifriction-bearing box, steel ball.In the flower-drum body left side is set, right two position of bearingss are in order to laying antifriction-bearing box, and utilize flower-drum body inner structure, fix antifriction-bearing box with integrally formed following axle bumper and the jam nut of wheel shaft.Not only guarantee the concentricity of flower-drum body and wheel shaft but also played the effect of the power of reducing friction.With wheel shaft integrally formed interior axle bumper and outer axle bumper (together with the jam nut of this side), push down the steel ball of ratchet both sides, guarantee that the concentricity of transmission group component and wheel shaft reduces the friction drag that ratchet rotates again.Near the inboard of that side of Transmission thread cutting is arranged at the flower-drum body, the screw thread in this screw thread and the ratchet ring outside is meshing with each other and interlocking is fixed, the degree of depth of this section screw thread is enough to make ratchet ring all to embed in the flower-drum body, and the rotation of ratchet ring just can drive the flower-drum body around the wheel shaft rotation like this.In the inboard of ratchet ring one circle internal tooth is arranged, this internal tooth is that unidirectional tooth constitutes ratchet.This ratchet and ratchet pawl form one way engagement mechanism.Utilize spring that ratchet pawl is placed in the ratchet in the corresponding grooves, the end turning with this ratchet simultaneously goes out screw thread, the screw thread of the screw thread at this place and sprocket wheel inboard is meshing with each other and is locked together.At the antifriction-bearing box of overside and the outside of steel ball cover of dust is housed, rainproof water cover is housed, between flower-drum body and ratchet in order to prevent the intrusion of dust and rainwater.When sprocket wheel is subjected to traction when rotating forward, sprocket wheel drives ratchet and rotates synchronously, the ratchet pawl on the ratchet will with the internal gearing of ratchet ring.The tractive force that sprocket wheel is subjected to passes on the ratchet ring by ratchet, ratchet pawl, and ratchet ring drives the flower-drum body again and rotates, so bicycle has just advanced.When the sprocket wheel stop rotated, trailing wheel was still rotating under the effect of force of inertia, and drove the flower-drum body and ratchet ring rotates forward.At this moment the internal tooth of ratchet ring and ratchet pawl produce slide relative, and in sliding process, the internal tooth of ratchet ring is pressed to ratchet pawl the groove of ratchet.On the tooth top time, ratchet pawl is compressed the most severely in ratchet pawl slides into ratchet ring.Slide a bit a little forward, spring will be bound to the interior tooth top of ratchet pawl by ratchet ring on the tooth root, sends a sound of " clatter " again.When trailing wheel drive flower-drum body rotated very soon, ratchet pawl also slided on each internal tooth of ratchet ring soon, and tap-tap constantly spreads out of.When sprocket wheel was subjected to oppositely drawing, flower-drum body and ratchet ring still rotated forward, have quickened the slip between ratchet ring internal tooth and the ratchet pawl, and tap-tap is just more rapid.So when ratchet ring internal tooth and ratchet pawl engagement, bicycle just advances; When they do not mesh, do not hinder trailing wheel (comprising the flower-drum body) to be rotated further.
After adopting technical measures of the present utility model, disjunctor flyings drum ratchet gearing becomes fairly simple.Remove wheel shaft, flower-drum body and ratchet ring, ratchet ring and ratchet pawl, ratchet and sprocket wheel etc. are located to do outside the higher processing of precision, and other working accuracy is just not high.Increased antifriction-bearing box and can guarantee concentricity and improve smooth degree, assembled also much easy.Technical measures such as adopted that ratchet ring is locked in the flower-drum body, the opening shelves and can reduce of disjunctor flyings drum device.As long as guarantee the technical requirements of ratchet and sprocket wheel joint portion, the size of sprocket wheel can reduce in addition, and the number of teeth also can correspondingly reduce, and can also change sprocket wheel easily.
Appended drawings 1 is the assembly drawing of a kind of disjunctor flyings drum device that the utility model proposed.
Accompanying drawing 2 is the assembly drawing of existing disjunctor flyings drum ratchet gearing.
The utility model is described in further detail below in conjunction with drawings and Examples for the specific embodiment.Primary clustering of the present utility model is: wheel shaft (1), flower-drum body (2), sprocket wheel (3), ratchet ring (4), spring (5), ratchet pawl (6), ratchet (7), outer axle bumper (8) and antifriction-bearing box (9), steel ball (10).In flower-drum body (2), a left side is set, right two position of bearingss are in order to lay antifriction-bearing box (9), and utilizing the groove that matches with antifriction-bearing box (9) size in the flower-drum body (2), interior axle bumper and the jam nut (11) integrally formed with wheel shaft (1) fix antifriction-bearing box (9).Not only guarantee the concentricity of flower-drum body (2) and wheel shaft (1) but also played the effect of the power of reducing friction.With wheel shaft (1) integrally formed interior axle bumper and the jam nut (11) of outer axle bumper (8) with this side, push down the steel ball of ratchet (7) both sides, guarantee that the ratchet (7) and the concentricity of wheel shaft (1) reduce the friction drag that ratchet (7) rotates again.Near the inboard of that side of ratchet ring (4) thread cutting is arranged at flower-drum (2), the screw thread in this screw thread and ratchet ring (4) outside is meshing with each other and interlocking is fixed, the degree of depth of this section screw thread is enough to make ratchet ring (4) all to embed in the flower-drum body, and the rotation of ratchet ring (4) just can drive flower-drum body (2) around wheel shaft (1) rotation like this.If flower-drum body (2) is rotating around wheel shaft (1), then flower-drum body (2) also can drive ratchet ring (4) rotation.In the inboard of ratchet ring (4) a circle internal tooth is arranged, this internal tooth is that unidirectional tooth becomes ratchet.This ratchet and ratchet pawl (6) form one way engagement mechanism.Utilize spring (5) that ratchet pawl (6) is placed in the interior corresponding grooves of ratchet (7), the end turning with this ratchet (7) simultaneously goes out screw thread, the inboard screw thread of the screw thread at this place and sprocket wheel (3) is meshing with each other and is locked together.When sprocket wheel (3) is subjected to traction when rotating forward, sprocket wheel (3) drives ratchet (7) and rotates synchronously, the ratchet pawl (6) on the ratchet (7) will and the internal gearing of ratchet ring (4).The tractive force that sprocket wheel (3) is subjected to passes on the ratchet ring (4) by ratchet (7), ratchet pawl (6), and ratchet ring (4) drives flower-drum body (2) again and rotates, so bicycle has just advanced.When sprocket wheel (3) stop rotated, trailing wheel was still rotating under the effect of force of inertia, and drove flower-drum body (2) and ratchet ring (4) rotates forward.At this moment the internal tooth of ratchet ring (4) and ratchet pawl (6) produce slide relative, and in sliding process, the internal tooth of ratchet ring (4) is pressed to ratchet pawl (6) groove of ratchet (7).On the tooth top time, ratchet pawl (6) is compressed the most severely in ratchet pawl (6) slides into ratchet ring (4).Slide a bit a little forward, spring (5) will be bound to the interior tooth top of ratchet pawl (6) by ratchet ring (4) on the tooth root, sends a sound of " clatter " again.When sprocket wheel (3) was subjected to oppositely drawing, flower-drum body (2) and ratchet ring (4) rotated forward, had quickened the slip between ratchet ring (4) internal tooth and the ratchet pawl (6), and tap-tap is just more rapid.So when ratchet ring (4) internal tooth and ratchet pawl (6) engagement, bicycle just advances; When they do not mesh, do not hinder trailing wheel to comprise that flower-drum body (2) is rotated further.Disjunctor flyings drum apparatus structure in the present embodiment is fairly simple, and processing and assembling are all more convenient.The shelves of opening of disjunctor flyings drum device are reduced to 80 millimeters.Sprocket wheel (3) can be changed easily, and the number of teeth reduces to 10 teeth.
Claims (4)
1. disjunctor flyings rouse device, by wheel shaft (1), and flower-drum body (2), sprocket wheel (3), spring (5), ratchet pawl (6), ratchet (7), last axle bumper (8) and antifriction-bearing box (9), steel ball (10) is formed, and it is characterized in that: the flower-drum body has the inboard that tooth is arranged in (2), the threaded ratchet ring in the outside (4); Wheel shaft (1) is the part in addition of one with interior axle bumper; There is screw thread the inboard of sprocket wheel (3); There is screw thread the inboard of flower-drum body (2).
2. a kind of disjunctor flyings drum device according to claim 1, it is characterized in that: the screw thread in the screw thread that flower-drum body (2) is inboard and ratchet ring (4) outside is meshing with each other and interlocking is fixed.
3. a kind of disjunctor flyings drum device according to claim 1, it is characterized in that: the screw thread in the screw thread that sprocket wheel (3) is inboard and ratchet (7) outside is meshing with each other and interlocking is fixed.
4. a kind of disjunctor flyings drum device according to claim 1, it is characterized in that: tooth that ratchet ring (4) is inboard and ratchet pawl (6) form one way engagement mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026502 CN2721424Y (en) | 2004-04-19 | 2004-04-19 | Linked flywheel and hub device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026502 CN2721424Y (en) | 2004-04-19 | 2004-04-19 | Linked flywheel and hub device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721424Y true CN2721424Y (en) | 2005-08-31 |
Family
ID=35011801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026502 Expired - Lifetime CN2721424Y (en) | 2004-04-19 | 2004-04-19 | Linked flywheel and hub device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721424Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398469A (en) * | 2011-06-10 | 2012-04-04 | 宁波威玛斯车业有限公司 | Novel double-R axle bumper bicycle spline hub |
| CN112589397A (en) * | 2020-12-28 | 2021-04-02 | 政科车料（太仓）有限公司 | Bicycle hub and high-precision forming process thereof |
-
2004
- 2004-04-19 CN CN 200420026502 patent/CN2721424Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398469A (en) * | 2011-06-10 | 2012-04-04 | 宁波威玛斯车业有限公司 | Novel double-R axle bumper bicycle spline hub |
| CN112589397A (en) * | 2020-12-28 | 2021-04-02 | 政科车料（太仓）有限公司 | Bicycle hub and high-precision forming process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7753387B2 (en) | Bicycle stepping apparatus | |
| WO2022105195A1 (en) | Mid-drive motor capable of achieving multi-gear variable-speed adjustment | |
| CN2721424Y (en) | Linked flywheel and hub device | |
| CN101224779B (en) | Bicycle power-assisted device | |
| CN2881199Y (en) | Pedal type controllable sliding energy saving device of motorcycle | |
| CN203652061U (en) | Power transmission device for reducing sliding resistance of bicycle | |
| CN201093019Y (en) | Wheel clutch | |
| CN201725722U (en) | Bidirectional clutch gear case for high-voltage switch | |
| CN2691751Y (en) | Hole drilling machine tool variable speed driving mechanism | |
| CN211229918U (en) | Hidden automobile front door handle | |
| CN208216917U (en) | Step-less speed changing planetary gear system | |
| CN2841492Y (en) | Chainless bicycle external gear speed transmission | |
| CN1031219C (en) | Dynamic power transmission device | |
| CN203698570U (en) | Electric variable speed bicycle | |
| CN2620644Y (en) | Brake and driving mechanism for caterpillar | |
| CN2813440Y (en) | Motorcycle chain wheel | |
| CN102001411A (en) | Transmission device for electric bicycle | |
| CN2304595Y (en) | Bidirectional pedal of bicycle | |
| CN2113941U (en) | Bicycle drive | |
| CN108502094B (en) | Planetary gear stepless speed change system | |
| CN2337055Y (en) | Adjustable pedal bicycle | |
| CN200940646Y (en) | Energy saving wheel for chain gear | |
| CN201165314Y (en) | Bike differential speed-changer | |
| CN2672364Y (en) | Automatic sliding clutch for straddle type motorcycle | |
| CN2360671Y (en) | Bearing type combined flywheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140419 Granted publication date: 20050831 |