CN201802792U - Variable-stiffness coil spring for automotive suspension - Google Patents
Variable-stiffness coil spring for automotive suspension Download PDFInfo
- Publication number
- CN201802792U CN201802792U CN2010205092609U CN201020509260U CN201802792U CN 201802792 U CN201802792 U CN 201802792U CN 2010205092609 U CN2010205092609 U CN 2010205092609U CN 201020509260 U CN201020509260 U CN 201020509260U CN 201802792 U CN201802792 U CN 201802792U
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Abstract
The utility model relates to a variable-stiffness coil spring for an automotive suspension. The coil spring comprises a spring body taking the shape of a pagoda, wherein the pitch diameter of the spring body is the largest in the middle and decreases gradually from the middle to the two ends; the pitch diameter and the thread pitch of the spring body are the largest in the middles and decrease gradually and synchronously from the middle to the two ends, wherein the pitch diameter ranges from 76.8 to 145.4 mm, and the distance between adjacent thread pitches ranges from 16.6 to 57.7 mm; and the diameter of a spring wire ranges from 10 to 20 mm. The spring wire is made of steel bar material with the same diameter and circular section, and during the production, the pitch diameter and the thread pitch are changed regularly while the spring is wound, so that the utilization ratio of material is improved, the weight is reduced, and the variable-stiffness coil spring is obtained; and the stiffness of the spring satisfies the ideal requirements of an variable-stiffness spring for the automotive suspension.
Description
Technical field
The utility model belongs to the automotive suspension technical field, is specifically related to be used for the helical spring of McPherson strut.
Background technique
Helical spring is as a kind of elastic element because its simple in structure, easily manufactured and specific energy capacity height, in the suspension of modern light-duty vehicle, use quite general, particularly in car and middle bus.Helical spring can make compact structure at spring inner mounting dampers, range limiter or directional post in suspension arrangement, especially be fit to the MacPherson type automotive suspension.Common helical spring is after coiling is finished, and its elasticity coefficient is invariable, and the rigidity that is to say spring is to change with the variation of load.Select for use the purpose of variable stiffness coil spring to be: automobile wishes that in underloading or when travelling on flat road shock-absorbing spring rigidity is smaller, guarantees to drive riding comfort; And when automobile in heavy duty or when travelling on rough road, if spring rate is little, then amount of deformation is excessive, can cause the spring silk all and tight, loses buffering and damping effect, influence control stability, the rigidity of just wishing spring this moment greatly.This just requires to possess simultaneously on same spring, and can to satisfy underloading amount of deformation hour rigidity little, can satisfy the big requirement of rigidity when big of heavily loaded amount of deformation again, thereby just produce variable rate springs such as reducing, displacement.Switch political loyalty distance or become diameter Spring Steel Wire spring structure coiling or that both adopt simultaneously by adopting, can realize becoming stiffness characteristics.For example, Chinese patent notification number CN2325586Y, name is called has announced a kind of helical spring that becomes stiffness characteristics that has in " variable cross section material helical spring ".This patent changes its rigidity by changing helical spring spring filament diameter, has solved the capability conflicts of automobile in zero load or underloading and full load existence.But variable cross section material helical spring exists rolling technology complexity, spring silk to make shortcomings such as difficulty in manufacture process, in actual applications because cost is former thereby be difficult to extensive popularization.
The model utility content
In order to address the above problem, the utility model provides that a kind of manufacturing process is simple, the spring filament diameter is constant, the middle footpath of spring and pitch is all by rule continually varying automotive suspension variable stiffness coil spring.
Concrete architecture advances technological scheme is as follows:
Automotive suspension with variable stiffness coil spring comprise the middle footpath maximum at middle part, the footpath reduces to be the spring body of pagoda shape gradually in direction of both ends; The middle footpath of described spring body intermediate portion and pitch maximum, to direction of both ends, middle footpath and pitch reduce synchronously gradually by the centre, and wherein the footpath scope is 76.8-145.4mm, and adjacent pitch is 16.6-57.1mm, and the diameter range of spring thread is 10mm-20mm.
The height of described spring body is 294mm, and big-and-middle footpath, centre is 145.4mm, and the footpath is 94.9mm in the upper end, and the footpath is 76.8mm in the lower end; Middle maximum pitch is 57.1mm, and both ends of the spring pitch is 16.6mm, and the diameter of spring thread is 15mm.
Compare with existing variable stiffness coil spring technology, the utlity model has the advantage and the good effect of following aspect:
1, spring spring silk cross section remains unchanged, and produces easily, and manufacture cost is not higher than common helical spring, and the assurance easily of the stability of product performance, has improved the up-to-standard rate of production.
2, can satisfy desirable bearing spring and become rigidity requirement, and need not repacking or the existing suspension system of redesign, can directly replace original bearing spring and come into operation, save and install and user cost.
Description of drawings
Fig. 1 is the utility model variable stiffness coil spring structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further by embodiment.
Embodiment 1:
Referring to Fig. 1, automotive suspension with variable stiffness coil spring comprise the middle part middle footpath maximum, reduce to be the spring body 1 of pagoda shape gradually to direction of both ends.The middle footpath of spring body 1 intermediate portion and pitch maximum, to direction of both ends, middle footpath and pitch reduce synchronously gradually by the centre.
Wherein the footpath scope is 76.8-145.4mm, and adjacent pitch is 16.6-57.1mm, and the diameter range of spring thread is 10mm-20mm.
The theoretical symmetry center of " O " expression spring among Fig. 1.The concrete value of each scalar is as follows: spring body height h=294mm; The big-and-middle footpath a1=145.4mm of spring body, upwards extreme direction reduce gradually second in footpath a2=137.8mm, upwards extreme direction reduce gradually the 3rd in footpath a3=120.6mm, upwards extreme direction reduce gradually the 4th in footpath a4=94.9mm, downwards extreme direction reduce gradually the 5th in footpath a5=76.8mm, downwards extreme direction reduce gradually the 6th in footpath a6=120.1mm, downwards extreme direction reduce gradually the 7th in footpath a7=137.5mm, downwards extreme direction reduce gradually the 8th in footpath a8=145.4mm; The spring body extreme direction first pitch b1=b14=16.6mm that makes progress, the spring body extreme direction second pitch b2=b13=36.4mm that makes progress, spring body extreme direction the 3rd pitch b3=b12=50.6mm that makes progress, spring body middle part pitch b4=b11=57.1mm, downward extreme direction the 5th pitch b5=b10=54.9mm of spring body, downward extreme direction the 6th pitch b6=b9=44.3mm of spring body, downward extreme direction the 7th pitch b7=b8=27.0mm of spring body.The diameter of this routine spring thread is 15mm.
Claims (2)
1. automotive suspension variable stiffness coil spring, the spring body that comprise the middle footpath maximum at middle part, the footpath reduces to be pagoda shape gradually in direction of both ends, it is characterized in that: the middle footpath of described spring body intermediate portion and pitch maximum, by the centre to direction of both ends, middle footpath and pitch reduce synchronously gradually, wherein the footpath scope is 76.8-145.4mm, and adjacent pitch is 16.6-57.1mm, and the diameter range of spring thread is 10mm-20mm.
2. automotive suspension variable stiffness coil spring according to claim 1 is characterized in that: the height of described spring body is 294mm, and big-and-middle footpath, centre is 145.4mm, and the footpath is 94.9mm in the upper end, and the footpath is 76.8mm in the lower end; Middle maximum pitch is 57.1mm, and both ends of the spring pitch is 16.6mm, and the diameter of spring thread is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205092609U CN201802792U (en) | 2010-08-26 | 2010-08-26 | Variable-stiffness coil spring for automotive suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205092609U CN201802792U (en) | 2010-08-26 | 2010-08-26 | Variable-stiffness coil spring for automotive suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802792U true CN201802792U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205092609U Expired - Fee Related CN201802792U (en) | 2010-08-26 | 2010-08-26 | Variable-stiffness coil spring for automotive suspension |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537164A (en) * | 2011-12-22 | 2012-07-04 | 王昭东 | Conical spring |
| CN105422211A (en) * | 2015-12-10 | 2016-03-23 | 广东安飞汽车配件有限公司 | Oil filter bypass valve |
| CN106246776A (en) * | 2016-10-21 | 2016-12-21 | 上海普英特高层设备股份有限公司 | destructive energy absorption spring |
| CN107096615A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Pitches not simultaneously coil spring and the side-mounted vibromill of hybrid density medium |
| 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 |
| CN107096614A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Simultaneously coil spring is not ground convexity with the side-mounted double-mass vibrating of hybrid density medium |
| CN107138237A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground convexity with hybrid density medium double-mass vibrating |
| CN107138238A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density vibration of media |
| CN107138239A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground convexity 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 |
| CN107175154A (en) * | 2017-07-03 | 2017-09-19 | 南京工程学院 | Convexity not simultaneously coil spring and hybrid density medium dual-drum vibration mill |
| CN107199083A (en) * | 2017-07-03 | 2017-09-26 | 南京工程学院 | Simultaneously coil spring double-mass vibrating is not ground convexity |
| CN107243403A (en) * | 2017-07-03 | 2017-10-13 | 南京工程学院 | Convexity not simultaneously coil spring and the side-mounted vibromill of hybrid density medium |
| CN107262221A (en) * | 2017-07-03 | 2017-10-20 | 南京工程学院 | Simultaneously coil spring double-mass vibrating is not ground pitches |
| CN107413462A (en) * | 2017-07-03 | 2017-12-01 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density medium double-mass vibrating |
| CN109094321A (en) * | 2018-09-29 | 2018-12-28 | 北京云迹科技有限公司 | Suspension shock absorber, robot chassis and robot |
| CN111022539A (en) * | 2019-11-28 | 2020-04-17 | 浙江兰菱弹簧有限公司 | Valve spring capable of meeting large-load and large-stroke requirements and forming method thereof |
| CN114668440A (en) * | 2020-12-24 | 2022-06-28 | 上海加奇生物科技苏州有限公司 | Embolism spring ring |
-
2010
- 2010-08-26 CN CN2010205092609U patent/CN201802792U/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537164A (en) * | 2011-12-22 | 2012-07-04 | 王昭东 | Conical spring |
| CN105422211A (en) * | 2015-12-10 | 2016-03-23 | 广东安飞汽车配件有限公司 | Oil filter bypass valve |
| CN106246776A (en) * | 2016-10-21 | 2016-12-21 | 上海普英特高层设备股份有限公司 | destructive energy absorption spring |
| CN107096615A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Pitches not simultaneously coil spring and the side-mounted vibromill of hybrid density medium |
| 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 |
| CN107096614A (en) * | 2017-07-03 | 2017-08-29 | 南京工程学院 | Simultaneously coil spring is not ground convexity with the side-mounted double-mass vibrating of hybrid density medium |
| CN107138237A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground convexity with hybrid density medium double-mass vibrating |
| CN107138238A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density vibration of media |
| CN107138239A (en) * | 2017-07-03 | 2017-09-08 | 南京工程学院 | Simultaneously coil spring is not ground convexity 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 |
| CN107175154A (en) * | 2017-07-03 | 2017-09-19 | 南京工程学院 | Convexity not simultaneously coil spring and hybrid density medium dual-drum vibration mill |
| CN107199083A (en) * | 2017-07-03 | 2017-09-26 | 南京工程学院 | Simultaneously coil spring double-mass vibrating is not ground convexity |
| CN107243403A (en) * | 2017-07-03 | 2017-10-13 | 南京工程学院 | Convexity not simultaneously coil spring and the side-mounted vibromill of hybrid density medium |
| CN107262221A (en) * | 2017-07-03 | 2017-10-20 | 南京工程学院 | Simultaneously coil spring double-mass vibrating is not ground pitches |
| CN107413462A (en) * | 2017-07-03 | 2017-12-01 | 南京工程学院 | Simultaneously coil spring is not ground pitches with hybrid density medium double-mass vibrating |
| CN109094321A (en) * | 2018-09-29 | 2018-12-28 | 北京云迹科技有限公司 | Suspension shock absorber, robot chassis and robot |
| CN111022539A (en) * | 2019-11-28 | 2020-04-17 | 浙江兰菱弹簧有限公司 | Valve spring capable of meeting large-load and large-stroke requirements and forming method thereof |
| CN114668440A (en) * | 2020-12-24 | 2022-06-28 | 上海加奇生物科技苏州有限公司 | Embolism spring ring |
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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: 20110420 Termination date: 20140826 |
|
| EXPY | Termination of patent right or utility model |