CN201487149U - Automatic tension pulley - Google Patents
Automatic tension pulley Download PDFInfo
- Publication number
- CN201487149U CN201487149U CN2009201908598U CN200920190859U CN201487149U CN 201487149 U CN201487149 U CN 201487149U CN 2009201908598 U CN2009201908598 U CN 2009201908598U CN 200920190859 U CN200920190859 U CN 200920190859U CN 201487149 U CN201487149 U CN 201487149U
- Authority
- CN
- China
- Prior art keywords
- eccentric shaft
- bearing
- axle sleeve
- end cover
- cooperate
- 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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- Mounting Of Bearings Or Others (AREA)
Abstract
The utility model discloses an automatic tension pulley, comprising a bearing, a shaft sleeve, an eccentric shaft, a fixing support, a front end cover and a back end cover, wherein the outer diameter of the bearing is matched with a shell; the outer diameter of the shaft sleeve is matched with an oil-free bearing; the outer diameter of the oil-free bearing is matched with the eccentric shaft; the front end of the shaft sleeve is fixedly connected with the fixing support; the rear end of the shaft sleeve is riveted with the back end cover; a nylon sleeve is arranged between the eccentric shaft and the back end cover; a spring is arranged between the fixing support and the eccentric shaft; the front end cover is arranged between the spring and the fixing support; the eccentric shaft is provided with a step used for fixing the nylon sleeve; the outer diameter of the eccentric shaft is matched with the bearing; and the inner diameter of the shaft sleeve is provided with a shaft in a matching way. The automatic tension pulley has the characteristics of simple process and easy installation.
Description
Technical field
The utility model discloses a kind of automatic expansion tightening wheel, belong to the engine fittings technical field.
Background technique
Expansion tightening wheel is widely used at present as one of important accessory of motor.Because its main effect is exactly the expanding force that keeps belt, thereby make the more effective work of motor, and reduce the noise that produces because of belt vibration.Expansion tightening wheel is made up of a plurality of component, its axis is in assembling and in servicely all play very important effect, structural limitations because of the installation position of axle, the axle that the market advancing bearing up pulley is installed is to be formed by riveted joint after a plurality of part processing, and the axle of this riveted structure, manufacturing procedure is loaded down with trivial details, and fastness is also general.
The way of punching installing and locating pin is used in the location of market advancing bearing up pulley, determines that adjusted position is to use the way of beating the indication point hole, has increased manufacturing procedure, and part is many, the mounting process complexity.
The model utility content
The purpose of this utility model is to provide a kind of automatic expansion tightening wheel, has processing simply, characteristics easy for installation.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of automatic expansion tightening wheel comprises bearing, axle sleeve, and eccentric shaft, fixing frame, front cover and rear end cover cooperate on the external diameter of bearing to be provided with shell; Cooperate on the external diameter of described axle sleeve and be provided with oilless bearing, cooperate on the external diameter of oilless bearing and be provided with eccentric shaft, and axle sleeve front end and fixing frame are connected, axle sleeve rear end and rear end cover riveted joint are provided with nylon jacket between eccentric shaft and the rear end cover, are provided with spring between fixing frame and the eccentric shaft, be provided with front cover between spring and the fixing frame, eccentric shaft is provided with the step that is used for fixing nylon jacket, cooperates on the eccentric shaft external diameter to be provided with bearing, cooperates on the internal diameter of axle sleeve to be provided with axle.
Described step is provided with to install regulates reference point.
Offer the fixedly hole and the hole of regulating usefulness of usefulness on the described axle, and axle is the one-step casting moulding.
The internal diameter of described axle sleeve is provided with step.
After adopting said structure and material, automatic tension of the present utility model adopts to cooperate on the oilless bearing internal diameter and is provided with axle sleeve, cooperates on the sleeve diameter to be provided with the axle of exempting to process the one-step casting moulding, and spool is provided with and is used to the hole of installing and being used to regulate.Changed the way that punching installing and locating pin is used in the location of expansion tightening wheel on the traditional market, reduced manufacturing procedure, part is few, and is easy to assembly, and cost is low.
Description of drawings
Fig. 1 is a plan view of the present utility model;
Fig. 2 is along the sectional view of x-x line among Fig. 1.
Embodiment
As depicted in figs. 1 and 2, a kind of automatic expansion tightening wheel comprises bearing 1, axle sleeve 6, eccentric shaft 3, fixing frame 7, front cover 5 and rear end cover 11; Cooperate on the external diameter of axle sleeve 6 and be provided with oilless bearing 8, cooperate on the external diameter of oilless bearing 8 and be provided with eccentric shaft 3, and axle sleeve 6 front ends and fixing frame 7 are connected, axle sleeve 6 rear ends and rear end cover 11 riveted joints, be provided with nylon jacket 10 between eccentric shaft 3 and the rear end cover 11, be provided with spring 4 between fixing frame 7 and the eccentric shaft 3, be provided with front cover 5 between spring 4 and the fixing frame 7, eccentric shaft 3 is provided with the step 31 that is used for fixing nylon jacket 10, and step 31 is provided with to install regulates reference point 32.Cooperate on eccentric shaft 3 external diameters to be provided with 6007 standard rolling bearing 1, cooperate on the external diameter of standard rolling bearing 1 to be provided with shell 2, cooperate on the internal diameter of axle sleeve 6 to be provided with axle 9, and the internal diameter of axle sleeve 6 is provided with step 61; Offer the fixedly hole 91 and the hole 92 of regulating usefulness of usefulness on the axle 9, and axle 9 is the one-step casting moulding.
During assembling, at first shell 2 and eccentric shaft 3 are installed, after fixing frame 7 and axle sleeve 6 are affixed, oilless bearing 8, front cover 5, spring 4, nylon jacket 10, rear end cover 11 are installed successively, riveted joint axle sleeve 6 and rear end cover 11; With pack into the internal diameter of axle sleeve 6 of axle 9, make its shoulder push up rear end cover 11, fixedly the outside riveting in 91 positions, hole of usefulness is opened again, opens on the step 61 that the position is stuck in axle sleeve 6 internal diameters up to riveting.Finish the installation of a whole set of bearing.
Claims (4)
1. an automatic expansion tightening wheel comprises bearing (1), axle sleeve (6), eccentric shaft (3), and fixing frame (7), front cover (5) and rear end cover (11) cooperate on the external diameter of bearing (1) to be provided with shell (2); It is characterized in that: cooperate on the external diameter of described axle sleeve (6) to be provided with oilless bearing (8), cooperate on the external diameter of oilless bearing (8) and be provided with eccentric shaft (3), and axle sleeve (6) front end and fixing frame (7) are connected, axle sleeve (6) rear end and rear end cover (11) riveted joint, be provided with nylon jacket (10) between eccentric shaft (3) and the rear end cover (11), be provided with spring (4) between fixing frame (7) and the eccentric shaft (3), be provided with front cover (5) between spring (4) and the fixing frame (7), eccentric shaft (3) is provided with the step (31) that is used for fixing nylon jacket (10), cooperate on eccentric shaft (3) external diameter to be provided with bearing (1), cooperate on the internal diameter of axle sleeve (6) to be provided with axle (9).
2. automatic expansion tightening wheel as claimed in claim 1 is characterized in that: described step (31) is provided with to install regulates reference point (32).
3. automatic expansion tightening wheel as claimed in claim 1 is characterized in that: offer the fixedly hole (92) of the hole of usefulness (91) and adjusting usefulness on the described axle (9), and spool (9) are the one-step casting moulding.
4. automatic expansion tightening wheel as claimed in claim 1 is characterized in that: the internal diameter of described axle sleeve (6) is provided with step (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201908598U CN201487149U (en) | 2009-08-06 | 2009-08-06 | Automatic tension pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201908598U CN201487149U (en) | 2009-08-06 | 2009-08-06 | Automatic tension pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487149U true CN201487149U (en) | 2010-05-26 |
Family
ID=42426028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201908598U Expired - Fee Related CN201487149U (en) | 2009-08-06 | 2009-08-06 | Automatic tension pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487149U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936372A (en) * | 2010-08-31 | 2011-01-05 | 重庆长安汽车股份有限公司 | Tension pulley assembly with hook-bolt structure |
| CN103161897A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Tensioning wheel |
| CN105817552A (en) * | 2016-05-31 | 2016-08-03 | 安徽赛爵机械制造有限公司 | Expansion wheel forming process |
-
2009
- 2009-08-06 CN CN2009201908598U patent/CN201487149U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936372A (en) * | 2010-08-31 | 2011-01-05 | 重庆长安汽车股份有限公司 | Tension pulley assembly with hook-bolt structure |
| CN103161897A (en) * | 2011-12-09 | 2013-06-19 | 苏州工业园区高登威科技有限公司 | Tensioning wheel |
| CN105817552A (en) * | 2016-05-31 | 2016-08-03 | 安徽赛爵机械制造有限公司 | Expansion wheel forming process |
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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: 20100526 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |