CN202867769U - Chain wheel preventing chain from dropping - Google Patents
Chain wheel preventing chain from dropping Download PDFInfo
- Publication number
- CN202867769U CN202867769U CN 201220470730 CN201220470730U CN202867769U CN 202867769 U CN202867769 U CN 202867769U CN 201220470730 CN201220470730 CN 201220470730 CN 201220470730 U CN201220470730 U CN 201220470730U CN 202867769 U CN202867769 U CN 202867769U
- Authority
- CN
- China
- Prior art keywords
- chain
- teeth
- wheel
- wheel body
- long
- 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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- Gears, Cams (AREA)
Abstract
The utility model discloses a chain wheel preventing a chain from dropping. The chain wheel preventing the chain from dropping comprises a wheel body. Wheel teeth are evenly distributed on the wheel body. The wheel teeth comprise long teeth and short teeth. The long teeth and the short teeth are arranged mutually at intervals. An extension part is arranged at the outer end of each long tooth. Guiding parts are arranged on two sides, located in the peripheral direction of the wheel body, of the extension part. The guiding parts are arc-shaped. Tooth profiles of the wheel teeth are involutes. Through grooves are evenly distributed in the wheel body and are of ellipticity. Due to the fact that the long teeth and the short teeth are arranged mutually at intervals, not only is the weight of the chain wheel reduced and are abrasions of the chain wheel and the wheel teeth reduced, but also stability of transmission can be guaranteed. Moreover, the condition that the chain is off is effectively avoided due to the long teeth. Meanwhile, the right engagement of the wheel teeth and the chain can be further guaranteed through the guiding parts. Due to the arrangement of the through grooves, self weight of the chain wheel body can be reduced, raw materials are reduced, and production cost is lowered.
Description
Technical field
The utility model relates to a kind of mechanically operated sprocket wheel.
Background technique
Sprocket wheel is the wheel with the cog type whelp, in order to pitch chain ring or cable on pitch accurately block be meshed or for solid or with the gear of spoke, mesh to transmit motion with (roller) chain, be widely used in the mechanical transmission of the industries such as chemical industry, textile manufacturing machine, food processing, instrument, oil etc.
The model utility content
The purpose of this utility model is to provide the anti-fall off chain sprocket wheel that can effectively avoid taking off chain.
The anti-fall off chain sprocket wheel comprises wheel body, and wheel body is provided with the equally distributed gear teeth, it is characterized in that: the gear teeth comprise long tooth and short tooth, long tooth and short tooth space arrange, and the outer end of long tooth is provided with extension part, and extension part is provided with guide portion in the both sides of the circumferencial direction of wheel body.
Further, guide portion is curved.
Further, the flank profil of the gear teeth is involute.
Further, wheel body is provided with equally distributed groove.
Further, groove is ellipticity.
The utility model has following beneficial effect owing to adopted technique scheme:
Adopt long tooth and short tooth space to arrange, both reduced the weight of sprocket wheel, reduced the wearing and tearing of sprocket wheel and the gear teeth, can guarantee again the stationarity of transmission; And long tooth can effectively avoid taking off the chain situation, can further guarantee simultaneously the accurate engagement of the gear teeth and chain by guide portion; And the own wt that groove can alleviate sprocket body is set, reduces the raw material consumption, reduce production costs.The utility model is simple and reliable for structure, manufacturing is easy, cost is low, and is practical.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the utility model anti-fall off chain sprocket wheel;
Fig. 2 is I place structure enlarged diagram among Fig. 1.
Embodiment
As depicted in figs. 1 and 2, for the utility model anti-fall off chain sprocket wheel, comprise wheel body 1, wheel body 1 is provided with equally distributed groove 2, groove 2 is ellipticity, wheel body 1 is provided with the equally distributed gear teeth 3, and the gear teeth 3 comprise long tooth 31 and short tooth 32, and long tooth 31 and short tooth 32 spaces arrange, the outer end of long tooth 31 is provided with extension part 4, extension part 4 is provided with guide portion 5 in the both sides of the circumferencial direction of wheel body 1, and guide portion 5 is curved, and the flank profil of the gear teeth 3 is involute.The utility model adopts long tooth 31 and short tooth 32 spaces to arrange, and has both reduced the weight of sprocket wheel, has reduced the wearing and tearing of sprocket wheel and the gear teeth, can guarantee again the stationarity of transmission; And long tooth 31 can effectively avoid taking off the chain situation, can further guarantee simultaneously the accurate engagement of the gear teeth 3 and chain by guide portion 5; And the own wt that groove 2 can alleviate sprocket body is set, reduces the raw material consumption, reduce production costs.
Only be specific embodiment of the utility model below, but technical characteristics of the present utility model is not limited to this.Any take the utility model as the basis, for realizing essentially identical technique effect, done the ground simple change, be equal to replacement or modification etc., all be covered by among the protection domain of the present utility model.
Claims (5)
1. anti-fall off chain sprocket wheel, comprise wheel body, described wheel body is provided with the equally distributed gear teeth, it is characterized in that: the described gear teeth comprise long tooth and short tooth, described long tooth and short tooth space arrange, the outer end of described long tooth is provided with extension part, and described extension part is provided with guide portion in the both sides of the circumferencial direction of described wheel body.
2. anti-fall off chain sprocket wheel according to claim 1, it is characterized in that: described guide portion is curved.
3. anti-fall off chain sprocket wheel according to claim 1, it is characterized in that: the flank profil of the described gear teeth is involute.
4. anti-fall off chain sprocket wheel according to claim 1, it is characterized in that: described wheel body is provided with equally distributed groove.
5. anti-fall off chain sprocket wheel according to claim 4, it is characterized in that: described groove is ellipticity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470730 CN202867769U (en) | 2012-09-16 | 2012-09-16 | Chain wheel preventing chain from dropping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220470730 CN202867769U (en) | 2012-09-16 | 2012-09-16 | Chain wheel preventing chain from dropping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867769U true CN202867769U (en) | 2013-04-10 |
Family
ID=48034491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220470730 Expired - Fee Related CN202867769U (en) | 2012-09-16 | 2012-09-16 | Chain wheel preventing chain from dropping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545477A (en) * | 2018-06-06 | 2018-09-18 | 成都晟兴牧业机械有限公司 | A kind of loop chain type egg transmission device |
-
2012
- 2012-09-16 CN CN 201220470730 patent/CN202867769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108545477A (en) * | 2018-06-06 | 2018-09-18 | 成都晟兴牧业机械有限公司 | A kind of loop chain type egg transmission device |
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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: 20140916 |
|
| EXPY | Termination of patent right or utility model |