CN202863707U - Motorcycle drive sprocket - Google Patents
Motorcycle drive sprocket Download PDFInfo
- Publication number
- CN202863707U CN202863707U CN 201220566350 CN201220566350U CN202863707U CN 202863707 U CN202863707 U CN 202863707U CN 201220566350 CN201220566350 CN 201220566350 CN 201220566350 U CN201220566350 U CN 201220566350U CN 202863707 U CN202863707 U CN 202863707U
- Authority
- CN
- China
- Prior art keywords
- sprocket
- drive sprocket
- sprocket body
- motorcycle drive
- motorcycle
- 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 discloses a motorcycle drive sprocket which comprises a sprocket body, wherein a plurality of sprocket teeth are evenly arranged on the sprocket body and an axis hole is formed in the middle of the sprocket body. The motorcycle drive sprocket is characterized in that at least one side face, corresponding to the axis hole, of the sprocket body is provided with a reinforcing boss; and the reinforcing boss protrudes out of the side face of the sprocket body. The motorcycle drive sprocket increases the thickness of a sprocket internal spline, therefore increases a contact area of the sprocket internal spline and a counter shaft, increases a contact area of stress, can bear larger force, postpone time when the motorcycle drive sprocket is out of operation due to abrasion, and prolongs service life of the motorcycle drive sprocket and the counter shaft.
Description
Technical field
The utility model relates to a kind of accessory structure of power transmission of motorcycle device, a kind of motorcycle main movable sprocket that rotates by the chain-driving motor cycle rear wheel in the time of especially.
Background technology
In the power transmission of motorcycle device, sprocket wheel is important power-transmitting part, drive sprocket is connected on the output shaft (countershaft) of change speed gear box, output shaft drives drive sprocket and rotates, drive sprocket drives the chain that cooperates with it again and rotates, transmission of power is driven motorcycle rear axle and rotates to driven sprocket, driven sprocket, thus the transmission of realization power.Owing to normally be connected by spline between drive sprocket and the countershaft, and the thickness of drive sprocket is generally thinner, the thickness at drive sprocket female splines position is shorter, cause the length of contact of drive sprocket female splines and countershaft to shorten, area of contact stressed during transfer motion power is less, the moment that drive sprocket can bear diminishes, and has increased the wearing and tearing of female splines and countershaft contact site; Period of service is slightly long, and countershaft or female splines lost efficacy because of wearing and tearing, has reduced the service life of sprocket wheel and countershaft.
Summary of the invention
The utility model is for the aforementioned deficiency of the chain wheel of motorcycle of prior art, a kind of length of contact that increases drive sprocket female splines and countershaft is provided, increases the motorcycle main movable sprocket of the moment that drive sprocket can bear.
The technical solution of the utility model, a kind of motorcycle main movable sprocket comprises sprocket body, evenly is provided with several sprockets on the sprocket body, the sprocket body center is provided with axle center hole; It is characterized in that: at least one side of sprocket body, the position of corresponding axle center hole arranges the reinforcement boss, strengthens the side that boss protrudes from sprocket body.
Further feature is: strengthen boss and protrude from the height of sprocket body between 1-4 ㎜.
It is circular strengthening boss.
A kind of motorcycle main movable sprocket of the utility model with respect to prior art, has following features:
1, at the drive sprocket endoporus boss is set, increased the length (axial length) of drive sprocket female splines, the corresponding length of contact that has increased drive sprocket female splines and countershaft, stressed area of contact when having increased transfer motion power, improved the force structure of female splines and countershaft, drive sprocket and countershaft can both bear larger moment.
2, owing to increased the length of contact of drive sprocket female splines and countershaft, the wearing and tearing of female splines and countershaft contact site have been reduced.
3, prolonged the service life of sprocket wheel and countershaft.
Description of drawings
Fig. 1 is the utility model chain sprocket structure cutaway view;
Fig. 2 is that Fig. 1 is along A-A to cutaway view.
The specific embodiment
In Fig. 1,2, a kind of motorcycle main movable sprocket of the present utility model, comprise sprocket body 1, evenly be provided with several sprockets 2 on the sprocket body 1, sprocket body 1 center is provided with axle center hole 3, the inboard of axle center hole 3 is provided with spline, and sprocket body 1 is in mating connection by spline and change speed gear box countershaft on the axle center hole 3, drives its synchronous rotation when countershaft rotates.
Improvement of the present utility model, on at least one side of sprocket body 1, the position of corresponding axle center hole 3, arrange and strengthen boss 4, strengthen the side that boss 4 protrudes from sprocket body 1, the height of its protrusion is between 1-4 ㎜, and the spline on the axle center hole 3 is arranged on the whole axle center hole 3, lead to another side from a side of sprocket body 1, namely in the inboard of strengthening boss 4 also to spline should be arranged.
It is circular strengthening boss 4.
The utility model arranges by one or two side in sprocket body 1 strengthens boss 4, prolonged the axial length of the spline of axle center hole 3 inboards, the corresponding length of contact that has increased sprocket wheel female splines and countershaft, stressed area of contact when having increased transfer motion power, drive sprocket can bear larger moment.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. a motorcycle main movable sprocket comprises sprocket body (1), evenly is provided with several sprockets (2) on the sprocket body (1), and sprocket body (1) center is provided with axle center hole (3); It is characterized in that: at least one side of sprocket body (1), the position of corresponding axle center hole (3) arranges and strengthens boss (4), strengthens the side that boss (4) protrudes from sprocket body (1).
2. a kind of motorcycle main movable sprocket according to claim 1 is characterized in that: strengthen boss (4) and protrude from the height of sprocket body (1) between 1-4 ㎜.
3. a kind of motorcycle main movable sprocket according to claim 1 and 2 is characterized in that: it is circular strengthening boss (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566350 CN202863707U (en) | 2012-10-31 | 2012-10-31 | Motorcycle drive sprocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566350 CN202863707U (en) | 2012-10-31 | 2012-10-31 | Motorcycle drive sprocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202863707U true CN202863707U (en) | 2013-04-10 |
Family
ID=48030449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566350 Expired - Fee Related CN202863707U (en) | 2012-10-31 | 2012-10-31 | Motorcycle drive sprocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202863707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641186A (en) * | 2016-12-28 | 2017-05-10 | 重庆小康工业集团股份有限公司 | Output chain wheel structure of motorcycle engine |
-
2012
- 2012-10-31 CN CN 201220566350 patent/CN202863707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641186A (en) * | 2016-12-28 | 2017-05-10 | 重庆小康工业集团股份有限公司 | Output chain wheel structure of motorcycle engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |