CN201187545Y - Variable-stiffness spiral spring - Google Patents
Variable-stiffness spiral spring Download PDFInfo
- Publication number
- CN201187545Y CN201187545Y CNU2008200715625U CN200820071562U CN201187545Y CN 201187545 Y CN201187545 Y CN 201187545Y CN U2008200715625 U CNU2008200715625 U CN U2008200715625U CN 200820071562 U CN200820071562 U CN 200820071562U CN 201187545 Y CN201187545 Y CN 201187545Y
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- spring
- pitch
- thread
- rigidity
- diameter
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Abstract
The utility model relates to a rigidity-variable helical spring which is characterized in that: the helical spring is made of 38SiMnVBE materials; the thread diameter, the pitch diameter and the thread pitch of the spring continuously increase turn by turn; and the thread diameter between the two ends of the spring ranges from 30 mm to 38 mm, the pitch diameter ranges from 68mm to 176mm, and the thread pitch ranges from 36 mm to 63 mm. The rigidity-variable helical spring is made of the 38SiMnVBE materials with high tensile strength, high elongation percentage and high rigidity, so that the design stress and the design life of the spring are increased. The thread diameter, the pitch diameter and the thread pitch of the spring are designed to vary continuously, so that each turn of thread has the same stress and the utilization rate of the material is increased. Additionally, the rigidity-variable helical spring has the advantages of reduced weight and ideal rigidity.
Description
Technical field:
The utility model relates to a kind of variable stiffness coil spring, in belonging to, the technical field of heavy motor truck suspension system.
Background technique:
At present typical helical spring is simple in structure with it, cost is low, stiffness characteristics calculates easily and characteristics such as control, is adopted by most auto vendors.But also there is the following defective:
1, Heavy Weight influences whole bearing capability.
2, stiffness characteristics is simple, and empty, fully loaded offset frequency changes greatly, and it is big to collide spacing probability; The smoothness of car load is poor.
3 stress distribution are unreasonable, and stock utilization is low.
Summary of the invention:
The utility model purpose is to provide a kind of variable stiffness coil spring, uses high-tensile, high-elongation, the 38SiMnVBE material of high hardness, the design stress and the projected life of having improved spring.The silk footpath of spring, middle footpath, pitch all are designed to continually varying, have improved the utilization ratio of material; Reduced weight; Stiffness characteristics is tending towards perfect condition.
The technical solution of the utility model is achieved in that variable stiffness coil spring, it is characterized in that: material adopts 38SiMnVBE; It is the spring that silk footpath, middle footpath and pitch from coil to coil increase continuously.The silk footpath changes to 38mm since an end by 30mm and finishes; Middle footpath changes to 176mm by 168mm and finishes; Pitch changes to 63mm by 36mm and finishes.
Good effect of the present utility model: material has adopted 38SiMnVBE, and the tension limit, specific elongation and the life-span of material all significantly improves; The silk footpath of spring, middle footpath, pitch all are designed to continually varying, thereby the stiffness characteristics that has guaranteed spring is tending towards ideal value, and it is minimum to have guaranteed that empty fully loaded offset frequency changes, and has reduced and has collided spacing probability; Improved the smoothness of car load to greatest extent; Each circle adopts the iso-stress design, can reduce weight, improves the utilization ratio of material.
Description of drawings:
Fig. 1 is a helical spring structure schematic diagram of the present utility model;
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described: as shown in Figure 1, variable stiffness coil spring is characterized in that: material adopts 38SiMnVBE; It is the spring that silk footpath 1, middle footpath 2 and pitch 3 from coil to coils increase continuously.Silk footpath 1 changes to 38mm since an end by 30mm and finishes; Middle footpath 2 changes to 176mm by 168mm and finishes; Pitch 3 changes to 63mm by 36mm and finishes.
Material adopts 38SiMnVBE; Spring increases continuously since end silk footpath 1, middle footpath 2, pitch 3 from coil to coils.Increasing to reduced diameter portion finishes; Silk footpath 1, middle footpath 2, pitch 3 all no longer increase, up to the other end end.Spring performance is that along with the increase gradually of load, spring begins doubling-up gradually from silk footpath 1 a thinnest end; Thereby realize that rigidity increases gradually.
Claims (4)
1, variable stiffness coil spring is characterized in that: material adopts 38SiMnVBE; It is the spring that silk footpath (1), middle footpath (2) and pitch (3) from coil to coil increase continuously.
2, a kind of variable stiffness coil spring according to claim 1 is characterized in that silk footpath (1) changes to 38mm since an end by 30mm and finishes.
3, a kind of variable stiffness coil spring according to claim 1 is characterized in that middle footpath (2) changes to 176mm by 168mm and finishes.
4, a kind of variable stiffness coil spring according to claim 1 is characterized in that pitch (3) changes to 63mm by 36mm and finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200715625U CN201187545Y (en) | 2008-03-21 | 2008-03-21 | Variable-stiffness spiral spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200715625U CN201187545Y (en) | 2008-03-21 | 2008-03-21 | Variable-stiffness spiral spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187545Y true CN201187545Y (en) | 2009-01-28 |
Family
ID=40310566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200715625U Expired - Lifetime CN201187545Y (en) | 2008-03-21 | 2008-03-21 | Variable-stiffness spiral spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201187545Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907144A (en) * | 2009-06-05 | 2010-12-08 | 中国第一汽车集团公司 | Continuously variable stiffness suspension spiral spring |
| CN102472345A (en) * | 2009-07-31 | 2012-05-23 | 日本发条株式会社 | Coil spring |
| CN107096616A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Pitches not simultaneously coil spring and hybrid density medium dual-drum vibration mill |
| CN107096613A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density medium bitubular double-mass vibrating |
| CN107159401A (en) * | 2017-07-03 | 2017-09-15 | 南京工程学院 | Simultaneously coil spring is not ground pitches with the side-mounted double-mass vibrating of hybrid density medium |
-
2008
- 2008-03-21 CN CNU2008200715625U patent/CN201187545Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907144A (en) * | 2009-06-05 | 2010-12-08 | 中国第一汽车集团公司 | Continuously variable stiffness suspension spiral spring |
| CN102472345A (en) * | 2009-07-31 | 2012-05-23 | 日本发条株式会社 | Coil spring |
| CN107096616A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Pitches not simultaneously coil spring and hybrid density medium dual-drum vibration mill |
| CN107096613A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density medium bitubular double-mass vibrating |
| CN107159401A (en) * | 2017-07-03 | 2017-09-15 | 南京工程学院 | Simultaneously coil spring is not ground pitches with the side-mounted double-mass vibrating of hybrid density medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20111114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111114 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Patentee after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Patentee before: China FAW Group Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |