CN201288809Y - Composite toothed chain wheel - Google Patents
Composite toothed chain wheel Download PDFInfo
- Publication number
- CN201288809Y CN201288809Y CNU2008201883505U CN200820188350U CN201288809Y CN 201288809 Y CN201288809 Y CN 201288809Y CN U2008201883505 U CNU2008201883505 U CN U2008201883505U CN 200820188350 U CN200820188350 U CN 200820188350U CN 201288809 Y CN201288809 Y CN 201288809Y
- Authority
- CN
- China
- Prior art keywords
- tooth profile
- chain
- toothed chain
- sprocket
- involute
- 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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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Gears, Cams (AREA)
Abstract
The utility model relates to a compound tooth profile tooth sprocket, comprising tooth profile which is fitted by an involute tooth profile section and a linear tooth profile section. When the utility model is meshed and driven with a toothed chain, the linear tooth profile on the outside of a chain plate of the toothed chain is firstly contacted with the involute tooth profile of the sprocket, after the chain plate rotates to a certain angle, the meshing position is smoothly transitted to the linear tooth profile from the involute tooth profile, thereby reducing meshing impact and chain fluctuation, reducing the polygon effect of the toothed chain driving and the impact effect of meshing instant, and improving the dynamic characteristics of the toothed chain under high speed working condition.
Description
Technical field
The utility model relates to a kind of transmission device, especially a kind of compound flank profil silent chain wheel.
Background technique
The silent chain drive sprocket mainly contains straight flange tooth profile sprocket and involute profile sprocket wheel at present, and traditional silent chain transmission is chain sheet outside straight flange flank profil and the engagement of sprocket wheel straight-side profile.The major defect of this silent chain sprocket driving is: the shock effect that has polygon effect and engaging-in moment, the chain position of center line presents periodic variation, this variation will make the linear velocity of silent chain chain and the variation of driven sprocket angular velocity generating period, the synchronism and the uniformity of infringement transmission.
Summary of the invention
The utility model provides a kind of and can reduce mesh impact and chain fluctuation, raising transmission synchronism and inhomogeneity compound flank profil silent chain wheel for overcoming above-mentioned the deficiencies in the prior art.
The purpose of this utility model is to adopt following technical proposals to realize: a kind of compound flank profil silent chain wheel, comprise flank profil, and flank profil is formed by involute profile section and the match of straight-side profile section.
When the utility model and silent chain engagement driving, silent chain carrier bar outside straight-side profile at first contacts with the sprocket wheel involute profile, carrier bar turns over several angle, the engaging position is smoothly transitted into straight-side profile by involute profile, reduced the fluctuation of mesh impact and chain, reduce chaindriven polygon effect of profile of tooth and the shock effect of engaging-in moment, improved the dynamic characteristic of silent chain transmission under high rotating speed operating mode.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model and a silent chain inner sprocket mesh cycle and carrier bar engagement original state;
Fig. 3 is the utility model and a silent chain inner sprocket mesh cycle and carrier bar engagement end of a period state;
Wherein ab is the involute profile section, and bc is straight-side profile section, 1. carrier bar.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, the contrate tooth profile of compound tooth profile sprocket, ab are the involute profile section, and bc is the straight-side profile section, and both fit within the common together new flank profil of forming.
Shown in Fig. 2,3, in use with the silent chain engagement, along clockwise rotating with angular velocity omega, carrier bar 1 outside straight-side profile at first contacted with the sprocket wheel involute profile sprocket wheel when chain was engaging-in, when sprocket wheel turns over clockwise around its center 0
(z is a teeth number of sprocket), carrier bar 1 complete engaging-in sprocket wheel, this moment, carrier bar 1 outside straight-side profile contacted the location with the sprocket wheel straight-side profile, and the engaging position is smoothly transitted into straight-side profile by involute profile, reduces the fluctuation of mesh impact and chain.
Claims (1)
1. a compound flank profil silent chain wheel comprises flank profil, and it is characterized in that: described flank profil is formed by involute profile section and the match of straight-side profile section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201883505U CN201288809Y (en) | 2008-09-19 | 2008-09-19 | Composite toothed chain wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201883505U CN201288809Y (en) | 2008-09-19 | 2008-09-19 | Composite toothed chain wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201288809Y true CN201288809Y (en) | 2009-08-12 |
Family
ID=40980490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201883505U Expired - Fee Related CN201288809Y (en) | 2008-09-19 | 2008-09-19 | Composite toothed chain wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201288809Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129383A (en) * | 2021-12-27 | 2022-03-04 | 尹钢 | Flattening massage chair with involute toothed chain rail convenient for walking of manipulator |
-
2008
- 2008-09-19 CN CNU2008201883505U patent/CN201288809Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114129383A (en) * | 2021-12-27 | 2022-03-04 | 尹钢 | Flattening massage chair with involute toothed chain rail convenient for walking of manipulator |
| CN114129383B (en) * | 2021-12-27 | 2023-12-01 | 浙江豪中豪健康产品有限公司 | Involute toothed chain track flattened massage chair convenient for mechanical arm to walk |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20130919 |