CN203223524U - Tensioning wheel with spring with square section - Google Patents
Tensioning wheel with spring with square section Download PDFInfo
- Publication number
- CN203223524U CN203223524U CN 201320204917 CN201320204917U CN203223524U CN 203223524 U CN203223524 U CN 203223524U CN 201320204917 CN201320204917 CN 201320204917 CN 201320204917 U CN201320204917 U CN 201320204917U CN 203223524 U CN203223524 U CN 203223524U
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- CN
- China
- Prior art keywords
- spring
- support board
- support plate
- section
- square
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses a tensioning wheel with a spring with the square section. The tensioning wheel comprises an idle pulley and a support board connected with the idle pulley. A spring supporting sleeve is connected to the support board through a center shaft. A spring is arranged in a space formed by the spring supporting sleeve and the support board. A spring seat is arranged between the spring and the support board. The spring is adjacent to one end of the spring supporting sleeve and the contact part between the spring and the spring seat is provided with a clamping hoop. The contact part between the other end of the spring and the support board is provided with an abrasion reducing ring. A panel is arranged on an end face of the support board. The cross section of the spring is square. A bearing is arranged in a groove formed the idler pulley and the support board. An end face of the idler pulley is fixed with a dust-proof cover through a shaft bolt. A self-lubricating bearing is arranged between the support board and the center shaft. The round section of a spring is changed into the rectangular section of the spring. When the spring rotates in the same angle, larger torque is achieved. When the torque is the same, the largest stress is smaller and fracture is not prone to happening. When the largest stress is reduced, fatigue attenuation of the torque of the spring is smaller and the operation of the belt tensioning wheel is ensured.
Description
Technical field
The utility model relates to a kind of tension pulley, relates in particular to a kind of Idle wheel with the square-section spring, belongs to the mechanical transmission field of accessories.
Background technique
In vehicle transmission, belt transmission is used very extensive, and is effective in order to guarantee reliable transmission, tension pulley is installed is necessary very much.The cross section of Idle wheel inner spring is generally circle in the prior art, maximum stress away from neutral surface be a line A(as shown in Figure 1), because the maximum stress lifting surface area is little, spring maximum distortion stress is bigger, be easy to occur the situation of spring breakage, simultaneously, the decay of the fatigue of spring torque is also very big, influences the use of tension pulley.Therefore, under the constant situation of other conditions, thereby to reduce maximum stress, reduce decay be those skilled in the art's good problems to study to the maximum stress lifting surface area that increases spring.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, and a kind of Idle wheel of the band square-section spring that can reduce the spring maximum stress, reduce to decay is provided.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
The Idle wheel of band square-section spring, comprise idle pulley and the support plate that is connected idle pulley, be connected with the spring supporting sleeve by central shaft on the described support plate, be provided with spring in the space that described spring supporting sleeve and support plate form, be provided with spring seat between described spring and the support plate, described spring props up a complete end and is provided with clip with the spring seat contact position near spring, the described spring the other end and support plate contact position are provided with wearing ring, described support plate end face is provided with panel, the cross section of described spring is square, be provided with bearing in the groove that described idle pulley and support plate form, described idle pulley end face fixedly has dust cover by axle bolt.
As preferably, be provided with self oiling bearing between described support plate and the central shaft.
According to the technical solution of the utility model, make the spring of circular section in the Idle wheel in the prior art spring of square-section into, make maximum stress away from neutral surface be a face B(as shown in Figure 2).Know by the ANSYS The results, the spring of same sectional area, the number of turns, middle footpath, total height, during the rotation equal angular, the rectangle spring is bigger than the moment of torsion that cylindrical spring produces, and maximum stress is littler.Therefore, in the practical application of tension pulley, can realize bigger moment of torsion when identical corner takes place spring; During same torque, maximum stress is littler, more difficult fracture; After maximum stress reduced, the decay of the fatigue of spring torque also can be littler, guarantees the operation of tension pulley better.
Description of drawings
Fig. 1 is indication circular cross-section spring stress schematic representation in the background technique;
Fig. 2 is square-section spring stress schematic representation;
Fig. 3 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
EmbodimentAs Fig. 1, Fig. 2, shown in Figure 3, the Idle wheel of band square-section spring, comprise idle pulley 6 and the support plate 2 that is connected idle pulley 6, be connected with spring supporting sleeve 1 by central shaft 3 on the described support plate 2, be provided with spring 4 in the space that described spring supporting sleeve 1 and support plate 2 form, be provided with spring seat 9 between described spring 4 and the support plate 2, described spring 4 props up an end of complete 1 and is provided with clip 12 with spring seat 9 contact position near springs, described spring 4 the other ends and support plate 2 contact position are provided with wearing ring 5, described support plate 2 end faces are provided with panel 10, the cross section of described spring 4 is square, be provided with self oiling bearing 11 between described support plate 2 and the central shaft 3, be provided with bearing 13 in the groove that described idle pulley 6 and support plate 2 form, described idle pulley 6 end faces fixedly have dust cover 7 by axle bolt 8.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (3)
1. be with the Idle wheel of square-section spring, comprise idle pulley (6) and the support plate that is connected idle pulley (6) (2), described support plate (2) is gone up and is connected with spring supporting sleeve (1) by central shaft (3), be provided with spring (4) in the space that described spring supporting sleeve (1) and support plate (2) form, be provided with spring seat (9) between described spring (4) and the support plate (2), described spring (4) props up an end of complete (1) and is provided with clip (12) with spring seat (9) contact position near spring, described spring (4) the other end and support plate (2) contact position are provided with wearing ring (5), described support plate (2) end face is provided with panel (10), it is characterized in that: the cross section of described spring (4) is square.
2. the Idle wheel of band according to claim 1 square-section spring is characterized in that: be provided with self oiling bearing (11) between described support plate (2) and the central shaft (3).
3. the Idle wheel of band according to claim 1 and 2 square-section spring, it is characterized in that: be provided with bearing (13) in the groove that described idle pulley (6) and support plate (2) form, described idle pulley (6) end face fixedly has dust cover (7) by axle bolt (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204917 CN203223524U (en) | 2013-04-22 | 2013-04-22 | Tensioning wheel with spring with square section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204917 CN203223524U (en) | 2013-04-22 | 2013-04-22 | Tensioning wheel with spring with square section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223524U true CN203223524U (en) | 2013-10-02 |
Family
ID=49250528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204917 Expired - Fee Related CN203223524U (en) | 2013-04-22 | 2013-04-22 | Tensioning wheel with spring with square section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244626A (en) * | 2013-04-22 | 2013-08-14 | 温州博立汽车科技有限公司 | Tensioning wheel with square-section spring |
-
2013
- 2013-04-22 CN CN 201320204917 patent/CN203223524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244626A (en) * | 2013-04-22 | 2013-08-14 | 温州博立汽车科技有限公司 | Tensioning wheel with square-section spring |
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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: 20131002 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |