CN202326950U - Chain tensioning device - Google Patents
Chain tensioning device Download PDFInfo
- Publication number
- CN202326950U CN202326950U CN2011204450324U CN201120445032U CN202326950U CN 202326950 U CN202326950 U CN 202326950U CN 2011204450324 U CN2011204450324 U CN 2011204450324U CN 201120445032 U CN201120445032 U CN 201120445032U CN 202326950 U CN202326950 U CN 202326950U
- Authority
- CN
- China
- Prior art keywords
- chain
- spring
- guide rails
- tensioning device
- sprockets
- 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 relates to a chain tensioning device which is used for a transmission system. The structure adopted by the chain tensioning device is as follows: a sprocket shaft is connected with side plates through bearings; sprockets are mounted on the sprocket shaft; guide rails are mounted on the side plates; movable blocks are mounted in the guide rails and are in sliding fit with the guide rails; one ends of spring-hooking columns are fixed on the movable blocks; supporting blocks are mounted at the end parts of the side plates; adjustment shafts and the supporting blocks are connected with each other through threads and are locked by using nuts; and one ends of springs are connected with the adjustment shafts, and the other ends of the springs are connected with the spring-hooking columns. When the sprockets are tensioned through adjusting, the nuts are loosened, the screw-in/out quantities of the adjustment shafts are adjusted, the springs are pulled and the spring-hooking columns are driven, and thus the movable blocks are pulled, and finally, the sprockets are driven to slide along the guide rails so as to achieve the aim of sprocket tensioning. The chain tensioning device is simple in structure, convenient to manufacture, and convenient to mount and debug; on one hand, a chain can be tensioned; and on the other hand, the function of vibration damping can be exerted, the impact arising from chain transmission is alleviated, and the chain wear generated due to the polygon effect of the chain is reduced.
Description
Technical field
The utility model technology relates to a kind of elasticity chain stretching device that is used for transmission system.
Background technique
As everyone knows, chain is a kind of common power transmission, can cause chain pitch to strengthen after working long hours, and makes chain slack list sag strengthen, and reduces chain and the effective total number of teeth in engagement of sprocket wheel, and transmission capacity is descended.General chain tension all is directly to increase tension device in the slack list, and tension device generally all is adjustable rigidity structure.Chain and sprocket engagement standard pitch circle are polygonal in fact, promptly produce polygon effect, and because of the variation of total number of teeth in engagement, tension force also changing, causes chain vibration in the process of transmitting movement, makes chain-driven not steady, has also aggravated the wearing and tearing of chain simultaneously.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the utility model provides a kind of damping effect that has, stable transmission chain stretching device.
The purpose of the utility model realizes through following technical proposals: chain stretching device is characterized in that: sprocket shaft is connected with side plate through bearing, and sprocket wheel is installed on the sprocket shaft; At the side plate upper mounting rail, moving block is installed in the guide rail, is slidingly matched with guide rail; Spring-hanging column one end is fixed on the moving block, in the end of side plate support block is installed, and adjusting axle is connected with support block through screw thread; And use nut check, and spring one end is connected with adjusting axle, and the other end is connected with spring-hanging column.
The beneficial effect of the utility model: the utility model adopts said structure, when regulating the sprocket wheel tensioning, unclamps nut; The adjustment adjusting axle screws in the back-out amount; The pulling spring also drives spring-hanging column, thereby the pulling moving block finally drives sprocket wheel and reaches sprocket wheel tensioning purpose along the guide rail slip.Simple in structure being convenient to of the utility model made, and Installation and Debugging are convenient.On the one hand can tension chain, can play damping effect on the other hand, alleviate the impact that chain-driven brings, reduce the chain wear problem that produces owing to the chain polygon effect.
Description of drawings
Fig. 1 uses the chain stretching device structural representation in assembling machine.
Fig. 2 is an assembling machine middle sprocket tensioning shaft end view.
Embodiment
Chain stretching device, like Fig. 1, shown in 2, bilateral symmetry is installed on assembling machine; Sprocket shaft 11 is connected with side plate 4 through bearing 9, and sprocket wheel 7 is used dowel fixes with sprocket shaft 11, at side plate 4 upper mounting rails 10; Moving block 8 is installed in the guide rail 10, is slidingly matched with guide rail 10, and spring-hanging column 6 one ends are fixed on the moving block 8; Support block 3 is installed in end at side plate 4, and adjusting axle 1 is connected with support block 3 through screw thread, and with nut 2 lockings; Spring 5 one ends are connected with adjusting axle 1, and the other end is connected with spring-hanging column 6.
Claims (1)
1. chain stretching device is characterized in that: sprocket shaft (11) is connected with side plate (4) through bearing (9), and sprocket wheel (7) is installed on the sprocket shaft (11); At side plate (4) upper mounting rail (10), moving block (8) is installed in the guide rail (10), is slidingly matched with guide rail (10); Spring-hanging column (6) one ends are fixed on the moving block (8); Support block (3) is installed in end at side plate (4), and adjusting axle (1) is connected with support block (3) through screw thread, and locks with nut (2); Spring (5) one ends are connected with adjusting axle (1), and the other end is connected with spring-hanging column (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204450324U CN202326950U (en) | 2011-11-11 | 2011-11-11 | Chain tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204450324U CN202326950U (en) | 2011-11-11 | 2011-11-11 | Chain tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326950U true CN202326950U (en) | 2012-07-11 |
Family
ID=46438930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204450324U Expired - Fee Related CN202326950U (en) | 2011-11-11 | 2011-11-11 | Chain tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326950U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267096A (en) * | 2013-05-14 | 2013-08-28 | 佛山市保利来建材实业有限公司 | Flexible chain tensioning structure |
| CN107973161A (en) * | 2017-12-03 | 2018-05-01 | 青岛鑫泉塑料机械有限公司 | A kind of plastic, rubber curl of sheet machine |
| CN114851302A (en) * | 2021-02-03 | 2022-08-05 | 创科无线普通合伙 | Chain saw |
-
2011
- 2011-11-11 CN CN2011204450324U patent/CN202326950U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267096A (en) * | 2013-05-14 | 2013-08-28 | 佛山市保利来建材实业有限公司 | Flexible chain tensioning structure |
| CN107973161A (en) * | 2017-12-03 | 2018-05-01 | 青岛鑫泉塑料机械有限公司 | A kind of plastic, rubber curl of sheet machine |
| CN114851302A (en) * | 2021-02-03 | 2022-08-05 | 创科无线普通合伙 | Chain saw |
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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: 20120711 Termination date: 20151111 |