CN201723681U - Chain wheel - Google Patents
Chain wheel Download PDFInfo
- Publication number
- CN201723681U CN201723681U CN2010202363581U CN201020236358U CN201723681U CN 201723681 U CN201723681 U CN 201723681U CN 2010202363581 U CN2010202363581 U CN 2010202363581U CN 201020236358 U CN201020236358 U CN 201020236358U CN 201723681 U CN201723681 U CN 201723681U
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- chain wheel
- wheel
- transmission shaft
- hole
- 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
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Abstract
The utility model discloses a chain wheel which comprises a wheel body (2) and wheel teeth (1), wherein the wheel body (2) is provided with a mounting hole (3) which is internally provided with a spline (5); and the chain wheel is characterized in that the hole wall of the mounting hole (3) is provided with an elongation part (4). By adopting the structure, the chain wheel increases the contact part between a transmission shaft and the hole wall so as to ensure the mounting hole of the chain wheel not to be easily worn; and the chain wheel is reliably fixed on the transmission shaft, so that the accurate transmission ratio of the chain wheel is guaranteed.
Description
Technical field
The utility model relates to a kind of architecture advances of sprocket wheel.
Background technique
In the prior art, be that the wheel body and the gear teeth constitute on the sprocket wheel, have mounting hole on wheel body, be provided with spline in the mounting hole, its mounting hole all is directly perforate on wheel body basically.Because the wheel body of some sprocket wheel is thinner, add in mounting hole, spline is set after, driving sleeve is after on the mounting hole, the area of contact of its transmission shaft and mounting hole hole wall is less, and in working for a long time, its mounting hole hole wall causes wearing and tearing, cause sprocket wheel swinging rolling on transmission shaft, so, directly have influence on the accuracy of its velocity ratio, and its noise when transmission is bigger.
Summary of the invention
In view of the deficiency that background technique exists, the technical problems to be solved in the utility model provides a kind of sprocket wheel that can guarantee its velocity ratio.
For this reason, the utility model is realized by the following technical solutions: a kind of sprocket wheel, comprise wheel body, the gear teeth, and have mounting hole on the described wheel body, be provided with spline in the described mounting hole, it is characterized in that the hole wall of described mounting hole has extending portion; The two ends of described mounting hole have the hole wall extending portion.
The sprocket wheel of this structure, after the hole wall of its mounting hole has extending portion, make that sprocket wheel is installed on the transmission shaft after, the area of contact of mounting hole hole wall and transmission shaft increases, make sprocket wheel be installed in and be difficult for swing on the transmission shaft, and reduce friction, not only improved working life but also guarantee velocity ratio accurately.
Description of drawings
Further describe relevant details of the present utility model below more in conjunction with the accompanying drawings.
Fig. 1 is a structural drawing of the present utility model;
Fig. 2 is the plan view of the utility model Fig. 1;
Fig. 3 is another embodiment's of the utility model a structural drawing.
Embodiment
With reference to accompanying drawing, this sprocket wheel comprises wheel body 2, the gear teeth 1, has mounting hole 3 on the described wheel body 2, is provided with spline 5 in the described mounting hole 3, and the hole wall of described mounting hole 3 has extending portion 4, to increase the area of contact of hole wall and transmission shaft; This extending portion 4 also can be provided with the two ends of described mounting hole 3, has increased the area of contact of hole wall and transmission shaft more, its better effects if.
Claims (2)
1. a sprocket wheel comprises wheel body (2), the gear teeth (1), has mounting hole (3) on the described wheel body (2), is provided with spline (5) in the described mounting hole (3), it is characterized in that the hole wall of described mounting hole (3) has extending portion (4).
2. sprocket wheel according to claim 1 is characterized in that the two ends of described mounting hole (3) have hole wall extending portion (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202363581U CN201723681U (en) | 2010-06-25 | 2010-06-25 | Chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202363581U CN201723681U (en) | 2010-06-25 | 2010-06-25 | Chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723681U true CN201723681U (en) | 2011-01-26 |
Family
ID=43492006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202363581U Expired - Lifetime CN201723681U (en) | 2010-06-25 | 2010-06-25 | Chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723681U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390739A (en) * | 2011-10-20 | 2012-03-28 | 盐城市旭华制鞋机械有限公司 | Inner arm link wheel for intelligent taking up of compound mechanism |
| CN102502294A (en) * | 2011-10-20 | 2012-06-20 | 盐城市旭华制鞋机械有限公司 | Intelligent uncoiling outer-arm chain wheel of composite machine |
| CN105276139A (en) * | 2014-07-23 | 2016-01-27 | 吴小江 | Assembly type chain wheel |
-
2010
- 2010-06-25 CN CN2010202363581U patent/CN201723681U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390739A (en) * | 2011-10-20 | 2012-03-28 | 盐城市旭华制鞋机械有限公司 | Inner arm link wheel for intelligent taking up of compound mechanism |
| CN102502294A (en) * | 2011-10-20 | 2012-06-20 | 盐城市旭华制鞋机械有限公司 | Intelligent uncoiling outer-arm chain wheel of composite machine |
| CN105276139A (en) * | 2014-07-23 | 2016-01-27 | 吴小江 | Assembly type chain wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |