CN203703026U - Belt tensioning device - Google Patents
Belt tensioning device Download PDFInfo
- Publication number
- CN203703026U CN203703026U CN201420065017.0U CN201420065017U CN203703026U CN 203703026 U CN203703026 U CN 203703026U CN 201420065017 U CN201420065017 U CN 201420065017U CN 203703026 U CN203703026 U CN 203703026U
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- CN
- China
- Prior art keywords
- sleeve
- support
- torsion bar
- bar spring
- belt
- 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)
Abstract
The utility model relates to a belt tensioning device which comprises a torsion rod spring, a tensioning arm connected to one end of the torsion rod spring in a key mode, a sleeve arranged on the torsion rod spring in a sleeved mode, a first support and a second support. The first support and the second support are in interference fit at the two ends of the sleeve. The sleeve and the torsion rod spring are connected through a cylinder pin. The right side, abutting against the second support, of the sleeve is provided with an assembling support. Support assembling holes are evenly formed in the assembling support. A belt wheel shaft is arranged at the upper end of the tensioning arm. A belt wheel is arranged on the belt wheel shaft. Vibration energy is absorbed through elasticity torsion, after the torsion rod spring is used, whole weight is light, the structure is simple, occupied space is small, and the device is suitable for a small engine, service life is long, an assembling process is simple, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of tension device, especially a kind of belt stretcher of motor car engine.
Background technique
Tension pulley is the very important parts of transmission system for car transmissions, mainly formed by stationary housing, tension arms, wheel body, torsion spring, rolling bearing and spring axle sleeve etc., tightness that can be different according to belt, automatically adjust tension force, make transmission system stability and safety reliable.In contemporary motor car engine, be not only widely used band transmission and driven the annexes such as generator, air condition compressor, fan, needs and bent axle keep the camshaft of strict phase relationship also to adopt belt wheel transmission.Lightweight, miniaturization is as a developing direction of current economical engine, Ge great motor corporation has released the 3 cylinder mini engines of 1.0～1.2L one after another, due to requirements such as motor compactness, lightweights, existing Idle wheel is difficult to meet the requirements of installation space of client's harshness, and torsion spring exists certain power relaxation problem, and stretching wheel assembly is had a certain impact working life.
Model utility content
The technical problems to be solved in the utility model is: the belt stretcher that a kind of installing space is little, simple in structure and relatively grow working life is provided.
The utility model solves the technological scheme that its technical problem adopts: a kind of belt stretcher, comprise torsion bar spring, key connecting at the tension arms of described torsion bar spring one end, be sleeved on the sleeve in torsion bar spring and be interference fitted in the first support and second support at described sleeve two ends; Sleeve and torsion bar spring connect by straight pin; Sleeve is provided with mount support, uniform support pilot hole on mount support by the right side of the second support; Tension arms upper end is provided with belt shaft, and belt pulley is installed on belt shaft.
Further, the front end that tension arms connects with torsion bar spring is provided with dustproof end cap; Barrel end is set with oil sealing and is assemblied in tension arms one side.
Further, sleeve is evenly equipped with locking groove, between sleeve and torsion bar spring, is provided with rubber sleeve; The other end of sleeve is by scyewed joint bolt.
The beneficial effects of the utility model are, have solved the defect existing in background technique, carry out absorbing vibrational energy by reversing elastic force, adopt torsion bar spring after total quality light, simple in structure, take up room little, the motor that is applicable to miniaturization uses, long service life; And assembling process is easy, improve manufacturing efficiency.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of sleeve and mount support;
Fig. 3 is A-A sectional view of the present utility model;
In figure: 1. bolt; 2. check washer; 3. the first support, 4. sleeve; 41. locking grooves; 5. straight pin; 6. torsion bar spring; 7. the second support; 8. mount support; 81. pilot holes; 9. tension arms; 10. belt shaft; 11. belt pulleys; 12. latches; 13. dustproof end caps; 14. oil sealings; 15. rubber sleeves.
Embodiment
With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in FIG. 1 to 3, a kind of belt stretcher, comprise torsion bar spring 6, key connecting at the tension arms 9 of described torsion bar spring 6 one end, be sleeved on the sleeve 4 in torsion bar spring 6 and be interference fitted in the first support 3 and second support 7 at described sleeve 4 two ends; Sleeve 4 and torsion bar spring 6 connect by straight pin 5; Sleeve 4 is provided with mount support 8, uniform support pilot hole 81 on mount support 8 by the right side of the second support 7; Tension arms 9 upper ends are provided with belt shaft 10, and belt pulley 11 is installed on belt shaft 10.
For further improving working life of the present utility model, the front end that tension arms 9 connects with torsion bar spring 6 is provided with dustproof end cap 13, and the end of sleeve 4 is set with oil sealing 14 and is assemblied in tension arms 9 one sides, and the end of protection torsion bar spring 6 is not subject to the invasion and attack of impurity.
For further improving tensioning reliability, sleeve 4 is evenly equipped with locking groove 41; Between sleeve 4 and torsion bar spring 6, be provided with rubber sleeve 15; The other end of sleeve 4 is by scyewed joint bolt 1.
After the utility model just installs into, can, according to the requirement of client's tension force, turn to certain position by cylinder-pushed tension arms 9, tension arms 9 is fixed on a certain position with latch 12; While installing and using on engine line, only need pull out latch 12, tension arms 9 drives same belt pulley 11 under the pretightening force effect of torsion bar spring 6, to turn round, with auto-tensioning dynamo belt.
What in above specification, describe is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, person of an ordinary skill in the technical field read after specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of model utility.
Claims (3)
1. a belt stretcher, comprise torsion bar spring (6), key connecting at the tension arms (9) of described torsion bar spring (6) one end, be sleeved on the sleeve (4) in torsion bar spring (6) and be interference fitted in the first support (3) and second support (7) at described sleeve (4) two ends, it is characterized in that: sleeve (4) and torsion bar spring (6) connect by straight pin (5); Sleeve (4) is provided with mount support (8) by the right side of the second support (7), the upper uniform support pilot hole (81) of mount support (8); Tension arms (9) upper end is provided with belt shaft (10), and belt pulley (11) is installed on belt shaft 10.
2. a kind of belt stretcher according to claim 1, is characterized in that: the front end that described tension arms (9) connects with torsion bar spring (6) is provided with dustproof end cap (13); The end of sleeve (4) is set with oil sealing (14) and is assemblied in tension arms (9) one sides.
3. a kind of belt stretcher according to claim 1 and 2, is characterized in that: described sleeve (4) is evenly equipped with locking groove (41); Between sleeve (4) and torsion bar spring (6), be provided with rubber sleeve (15); The other end of sleeve (4) is by scyewed joint bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065017.0U CN203703026U (en) | 2014-02-13 | 2014-02-13 | Belt tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065017.0U CN203703026U (en) | 2014-02-13 | 2014-02-13 | Belt tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703026U true CN203703026U (en) | 2014-07-09 |
Family
ID=51053473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065017.0U Expired - Fee Related CN203703026U (en) | 2014-02-13 | 2014-02-13 | Belt tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747669A (en) * | 2015-04-02 | 2015-07-01 | 常州机电职业技术学院 | Compact type belt tensioning pulley |
| CN113232012A (en) * | 2021-05-13 | 2021-08-10 | 珠海格力电器股份有限公司 | Belt pretightning force adjusting device and have its robot |
| CN113415677A (en) * | 2021-08-09 | 2021-09-21 | 常州新创航空科技有限公司 | Tension compensation device for winding prepreg narrow band |
-
2014
- 2014-02-13 CN CN201420065017.0U patent/CN203703026U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747669A (en) * | 2015-04-02 | 2015-07-01 | 常州机电职业技术学院 | Compact type belt tensioning pulley |
| CN113232012A (en) * | 2021-05-13 | 2021-08-10 | 珠海格力电器股份有限公司 | Belt pretightning force adjusting device and have its robot |
| CN113415677A (en) * | 2021-08-09 | 2021-09-21 | 常州新创航空科技有限公司 | Tension compensation device for winding prepreg narrow band |
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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: 20140709 Termination date: 20170213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |