CN2610161Y - S-shape prestressed coil spring - Google Patents
S-shape prestressed coil spring Download PDFInfo
- Publication number
- CN2610161Y CN2610161Y CN 03230548 CN03230548U CN2610161Y CN 2610161 Y CN2610161 Y CN 2610161Y CN 03230548 CN03230548 CN 03230548 CN 03230548 U CN03230548 U CN 03230548U CN 2610161 Y CN2610161 Y CN 2610161Y
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- CN
- China
- Prior art keywords
- spring
- roll
- shape
- furl
- furls
- 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 discloses an S shape initial stress roll-up spring. When the roll-up spring is spread, the shape under the free state is the S shape. Just the S shape of the roll-up spring makes the roll-up spring have an outer-released initial stress in work. The utility model can reduce the friction force among roll-up spring layers, and make the roll-up moment of the roll-up spring change slightly, which achieves the stable roll-up force of the roll-up apparatus. In addition, for the free circle number of the S shape roll-up spring is less, compared with the common plane swirl spring, the using circle number is more.
Description
Affiliated technical field
The utility model relates to a kind of plane scroll spring that is used for all kinds of winders.
Background technique
The spiral of Archimedes that traditional plane scroll spring that is used for all kinds of winders, its expansion shape are normally not equidistant.The output torque mobility was big when its shortcoming was work, drop is big, and being difficult to reach winder, to furl the number of turns many, furl power requirement stably.
Summary of the invention
The purpose of this utility model provide a kind of furl the number of turns more, furl moment and furl spring stably.
The technological scheme that furls spring of the present utility model is such: when this furled the spring expansion, the shape of free state was a S shape.
Furl the S shape of spring just, make to furl spring, a kind of prestressing force of outside release is arranged, reduce furling the spring interfacial friction in when work, make furl spring to furl the moment change little, reach winder and furl power purpose stably.In addition, the free number of turns that furls spring owing to S shape is less, so it for general plane scroll spring, uses the number of turns more.
Description of drawings
Below in conjunction with description of drawings embodiment of the present utility model is further described.
Fig. 1. furl spring and launch the free state schematic representation.
1. furl the spring outer end; 2. furl spring the inner.
Embodiment
As shown in Figure 1, this shape that furls the free state of spring is a S shape, and described the inner 2 and the outer end 1 that furls spring is hole shape or hook-type.Furl spring and can use various elastic material processing, the maximum ga(u)ge that furls spring can reach 1.5mm, and Extreme breadth can reach 50mm.
With Spring Steel Band clot preforming, end annealing, cut-out, end formed, above manufacturing process can furl automatically on the spring making machine in numerical control and once finish, and then through ageing treatment, turns to S shape again.
The spring that furls of the present utility model has stable, the applied range of output torque, is applicable to the advantage of various types of winders etc.
Claims (3)
1. one kind furls spring, and the expansion free state that it is characterized in that furling spring is a S shape.
2. the spring that furls according to claim 1 is characterized in that described the inner (2) and outer end (1) that furls spring is hook-type or hole shape.
3. the spring that furls as claimed in claim 2 is characterized in that the described thickness that furls spring at 0.1～1.5mm, and width is between 2～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230548 CN2610161Y (en) | 2003-04-22 | 2003-04-22 | S-shape prestressed coil spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230548 CN2610161Y (en) | 2003-04-22 | 2003-04-22 | S-shape prestressed coil spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2610161Y true CN2610161Y (en) | 2004-04-07 |
Family
ID=34165325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230548 Expired - Fee Related CN2610161Y (en) | 2003-04-22 | 2003-04-22 | S-shape prestressed coil spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2610161Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241388A (en) * | 2013-04-25 | 2013-08-14 | 上海卫星工程研究所 | Space constant torque passive driving device |
| CN113503330A (en) * | 2021-06-29 | 2021-10-15 | 上海宇航系统工程研究所 | Long-life planar spiral spring for space |
-
2003
- 2003-04-22 CN CN 03230548 patent/CN2610161Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241388A (en) * | 2013-04-25 | 2013-08-14 | 上海卫星工程研究所 | Space constant torque passive driving device |
| CN103241388B (en) * | 2013-04-25 | 2016-04-20 | 上海卫星工程研究所 | Space constant moment passive drive device |
| CN113503330A (en) * | 2021-06-29 | 2021-10-15 | 上海宇航系统工程研究所 | Long-life planar spiral spring for space |
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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: 20040407 Termination date: 20110422 |