CN106062409A - 用于汽车底盘的悬架弹簧单元 - Google Patents
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
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- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
- F16F1/3683—Attachments or mountings therefor
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- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
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- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/368—Leaf springs
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- 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
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- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
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- 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
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- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16F3/087—Units comprising several springs made of plastics or the like material
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- F16F3/0876—Units comprising several springs made of plastics or the like material of the same material or the material not being specified and of the same shape
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Abstract
本发明涉及一种用于汽车底盘的悬架弹簧单元(1),该悬架弹簧单元能够设置在汽车车身和轮架之间并且形成了汽车底盘的一个组成部分,该悬架弹簧单元通过由纤维复合材料制成的弹簧体构成。按照本发明,至少两个成列设置的由纤维复合材料制成的环体(10)分别设置有封闭的轮廓,该环体通过至少一个连接部件(11)相互连接。
Description
技术领域
本发明涉及一种用于汽车底盘的悬架弹簧单元,该悬架弹簧单元能够设置在汽车车身和轮架之间并且形成了汽车底盘的一个组成部分,该悬架弹簧单元通过由纤维复合材料制成的弹簧体构成。
背景技术
DE 101 41 432 A1中已知一种由复合纤维制成的两个片簧组成的复合纤维弹簧,而且该片簧在其端部上通过连接部件相互连接。该片簧以矩形形成并具有一个曲率,而且片簧在端部边缘上通过连接部件连接。在此,片簧的凹形的平面朝向彼此,从而两个片簧连同连接部件形成类似于封闭的椭圆的形状。为了将力引入片簧中,力引入部件在片簧的端部边缘之间的大致中间位置设置在片簧上。
DE 10 2008 006 41 1 A1示出了另一种以具有波浪形形状的由纤维复合材料制成的带形弹簧形式的、用于汽车底盘的悬架弹簧单元,其中,带形弹簧作为单个的波浪形状由折回区域和中间区域形成,从而带状弹簧以曲折的形状延伸。但是,通过悬架弹簧单元由单个带状弹簧的一件式制造不能改进悬架弹簧单元的结构并且在制造过程中是费力的。例如通过带形弹簧的一件式形成,仅能够通过替换整个带形弹簧而实施弹性率的调整。另外,由于必须将纤维复合材料的纤维放置到模子中,因此使作为较大的、一件式的部件的带状弹簧的制造变得困难。
发明内容
本发明的目的在于扩展用于汽车底盘的悬架弹簧单元,该悬架弹簧单元实施具有由纤维复合材料制成的弹簧体,其中,该悬架弹簧单元在制造方面应是简单的并且在结构方面应是灵活的,特别是应可以通过简单的装置使悬架弹簧单元的弹簧特性适应于相应的要求。
该目的由根据权利要求1前序部分所述的、具有纤维复合材料制成的弹簧体的、用于汽车底盘的悬架弹簧单元出发结合特征部分的特征得以实现。本发明的有利的扩展方案在从属权利要求中说明。
本发明包括一种技术教导,即,至少两个成列设置的由纤维复合材料制成的环体分别设置有封闭的轮廓,环体通过至少一个连接部件相互连接。
按照本发明,为了形成悬架弹簧单元,由纤维复合材料制成的弹簧体通过环体而形成,这些环体具有封闭的轮廓。这些环体在此通过连接部件特别是在其环外侧上相互连接,并且至少两个并特别是多个环体可以成列地相互连接,从而形成用于汽车底盘的悬架弹簧单元。在此,环体在中间通过连接部件相互连接,而且连接部件用于力传递,从而使环体和连接部件通过串联而分别传递相等的力,例如在轮架和汽车车身之间。
有利的是,至少两个连接部件在环体上径向相对地设置,从而限定了延伸经过连接部件的弹簧方向。在此可以将环体形成为椭圆形和/或可以设置为环体在横向于弹簧方向延伸的横向上长形地形成。由此得到了单个的环体,其具有两面平展的环的形状或者具有椭圆的形状。单个的环体在此可以具有所有相同或不同的弹簧特性。在悬架弹簧单元的应用中,共同挤压单个的环体并且悬架弹簧单元的总弹簧路径由单个的环体的各自的弹簧路径共同组成。单个的彼此重叠并且通过连接部件连接的环体可以在其沿横向的延伸方面全部平行,但是也可以以不同的角度围绕共同的弹簧方向相互扭转地设置。
单个的环体可以低成本地以简单的卷绕过程制造,而且特别有利的是,纤维复合材料包括纤维层,该纤维层至少主要或优选完全地在环体的周长方向上延伸。由此得到了一种通过卷绕过程的环体的特别简单的制造。为了产生相对于环绕方向的侧边方向中的横截面稳定性,环体可以包括至少一个编织层,而且卷绕纤维和编织层可以嵌入例如由环氧树脂组成的基体中。
特别是作为椭圆形的环体形成有形成椭圆的长轴的横向,该横向在椭圆形的环体的长轴上延伸并且横向于弹簧方向延伸,可以使环体以简单的方式制造。但是在此环体也可以实施为环形、椭圆形(即,在整个周长上具有变化的曲率)或者作为长环,从而使环体的封闭的轮廓通过两个在横向上大致相互平行延伸并且基本上平直的主区段和两个连接主区段的半径区段形成。通过环体的相互平行延伸的主区段例如得到了由多个环体组成的悬架弹簧单元的较小的结构高度。连接部件可以使具有主区段的环体连接,从而连接部件例如中间地在主区段上连接在环体上。
纤维复合材料例如可以包括玻璃纤维材料或碳纤维材料,而且例如树脂、特别是环氧树脂可以使用作为基体。
环体在横向上的轴的长度相对于在弹簧方向上延伸的轴的长度的比例可以等于2:1至10:1的数值并且优选3:1至5:1的数值。该比例越大,悬架弹簧单元被构建的越宽,其中,环体通常具有椭圆形的横截面并且相对于较短的高度而较大的主轴通常起到更低的弹性力的作用,因为单个的环体的挠性在高度方向上更大。
根据按照本发明的悬架弹簧单元的另一个有利的实施方式,优选设置有至少一个引导部件,该引导部件引导环体并且防止环体由弹簧方向而纵向弯曲。单个的环体在此可以在压缩的情况下在该引导部件中滑动,从而确保环体相对于例如稳定设置的引导部件而言的移动性。例如两个引导部件也可以彼此相对地围绕环体,而且例如环体可以通过其半径区段而在至少一个引导部件中引导。还能够考虑的是,一个或多个引导部件形成壳体,该壳体保护环体不受到湿气和污垢的影响。
环体可以具有根据平带类型的平面形成的环绕横截面。在此,至少一个连接部件可以这样与环绕横截面连接,即,具有不变的横截面的平带经过与连接部件的连接位置。由此产生了环体的有利的负荷。特别有利的是,该环绕横截面可以在环体的整个周长上不变,即,保持不变地形成。
按照本发明的悬架弹簧单元可以通过由纤维复合材料组成的弹簧体以具有封闭轮廓的环体的形式的形成而特别简单的制造,其中,悬架弹簧单元可以具有与钢弹簧相同或类似的弹簧特性,该钢弹簧在汽车的底盘中作为悬架弹簧而使用。在此,悬架弹簧单元具有极其轻的重量,而且根据环体的尺寸可以使具有本发明的特征的悬架弹簧单元的功能充分,从而可以作为汽车的底盘弹簧而使用。例如也可以在两个环体之间设置多个连接部件,这些连接部件相互间隔地与环体的平带连接,从而例如使负荷向环体中的传入更好地分布。
附图说明
另外,改进本发明的措施随后借助附图连同对本发明的优选实施例的描述进一步示出。其中:
图1示出了具有由纤维复合材料制成的弹簧体的悬架弹簧单元的示意图以及
图2示出了在负载状态下的悬架弹簧单元,其中,环体具有弹性的变形。
具体实施方式
图1以示意图示出了具有立体示出的环体10的悬架弹簧单元1,这些环体由纤维复合材料制成并且形成了悬架弹簧单元1的弹簧体。该悬架弹簧单元1可以以没有详细示出的方式用于汽车的底盘,并且该悬架弹簧单元1可以例如设置在汽车车身与轮架之间,并因此构成了汽车底盘的组成部分。
该悬架弹簧单元1例如具有三个环体10,这些环体通过连接部件11相互连接。为了使该悬架弹簧单元1与汽车车身和轮架连接,上方的环体10和下方的环体10分别在外侧具有另外的连接部件11。
连接部件11在环体10上径向相对地设置,从而限定了延伸通过连接部件11的弹簧方向12。如果该悬架弹簧单元1在外侧的连接部件11上受到压力负荷,那么环体10在弹簧方向12上压缩,从而使该悬架弹簧单元1的长度相应地缩短。
环体10以封闭、保持不变的轮廓而实施,而且环体10包括具有保持不变的环绕横截面的平带。环体10由纤维复合材料制成并且具有例如在上方的环体10上示出的纤维层14。纤维层14在周长方向15上延伸,而且周长方向15限定了环体10的环绕方向。通过纤维层14的至少一个主要部分在周长方向15中的延伸产生了有利的关于环体10的负载的负荷情况,因为环体10仅横向于周长方向15受到负荷,从而使纤维层14的纤维相应地可以容纳负荷,而且环体10在纤维层14的纤维的纵向上受到负荷。
举例示出的三个环体10以形状相同的方式实施,但是这些环体10也可以具有不同的设计并且通过连接部件11相互连接。如果悬架弹簧单元1压缩,那么单个环体10的弹簧路径叠加成为总弹簧路径,其中,单个环体10的刚性不必强制相等,而且环体10可以具有不同的弹簧比率。
该实施例示出了具有以椭圆形实施的环体10的悬架弹簧单元1,而且环体10具有横向于弹簧方向10延伸的横向13,例如在下方的环体10上示出。该环体10因此具有在横向上比环体10在弹簧方向12上的高度更大的延伸。
举例示出的环体10作为扁平的环形成并且环体10的封闭的轮廓通过两个在横向13上大致相互平行延伸并且基本上平直的主区段10a以及两个连接主区段10a的10b组成。
图2以示意性的侧视图示出了根据图1的悬架弹簧单元1,其中,该悬架弹簧单元1在外侧的连接部件11上加载有通过箭头示出的压力。施加在悬架弹簧单元1上的压力通过在环体10中和在连接部件11中的串联而在各个主体和部件中是大小相等的。通过施加的压力负荷使环体10表现出变形,特别是环体10的主区段10a具有在环体10中向内形成的挠曲17。
例如在环体10的左侧上示出了引导部件16,而且该引导部件16用于在半径区段10b上引导环体10,该半径区段使主区段10a在横向13上以弧形相互连接。引导部件16由此在半径区段10b上引导环体10。该引导部件16这样实施,以使得半径区段10b可以在引导部件16中沿弹簧方向12滑动,从而使引导部件16仅用于引导环体10并且不会在其上施加力。另外可以以同样的方式将另一个引导部件16在右侧上与示出的引导部件16相对地设置。该引导部件作为轨道实施并且特别是防止单个环体10的侧面的扭转。
通过在针对本发明的实施例中示出的悬架弹簧单元1提供了一种弹簧单元,其可以用作汽车悬架弹簧并且由纤维复合材料提供非常轻的重量。该悬架弹簧单元1在此相对于常规的钢弹簧可以具有显著更小的重量,但是该悬架弹簧单元1可以具有与相应的钢弹簧相同的弹簧特性和效率。
本发明在其实施方面并不局限于上述说明的优选实施例。确切地说,能够考虑许多使用本质上与上述解决方案不同类型的实施方式的变型。所有在权利要求书、说明书或附图中的特征和/或优点,包括结构细节或者空间布设在内,可以以其本身和以不同的结合的方式对于本发明而言是必要的。
附图标记列表
1 悬架弹簧单元
10 环体
10a 主区段
10b 半径区段
11 连接部件
12 弹簧方向
13 横向
14 纤维层
15 周长方向
16 引导部件
17 挠曲
Claims (10)
1.一种用于汽车底盘的悬架弹簧单元(1),所述悬架弹簧单元能够设置在汽车车身和轮架之间并且形成了汽车底盘的一个组成部分,所述悬架弹簧单元通过由纤维复合材料制成的弹簧体构成,其特征在于,至少两个成列设置的由纤维复合材料制成的环体(10)分别设置有封闭的轮廓,所述环体通过至少一个连接部件(11)相互连接。
2.根据权利要求1所述的悬架弹簧单元(1),其特征在于,至少两个连接部件(11)在所述环体(10)上径向相对地设置,从而限定了延伸经过所述连接部件(11)的弹簧方向(12)。
3.根据权利要求1或2所述的悬架弹簧单元(1),其特征在于,所述环体(10)形成为椭圆形和/或所述环体(10)在横向于弹簧方向(12)延伸的横向(13)上长形地形成。
4.根据权利要求1至3中任意一项所述的悬架弹簧单元(1),其特征在于,所述环体(10)的封闭的轮廓通过两个在横向(13)上大致相互平行延伸并且基本上平直的主区段(10a)和两个连接所述主区段(10a)的半径区段(10b)形成。
5.根据权利要求3所述的悬架弹簧单元(1),其特征在于,通过椭圆形的构造确定了横向(13),所述横向在椭圆形的环体(10)的长轴上延伸并且横向于弹簧方向(12)延伸。
6.根据上述权利要求中任意一项所述的悬架弹簧单元(1),其特征在于,所述环体(10)在横向(13)上的轴的长度相对于在弹簧方向(12)上延伸的轴的长度的比例等于2:1至10:1的数值并且优选3:1至5:1的数值。
7.根据上述权利要求中任意一项所述的悬架弹簧单元(1),其特征在于,所述纤维复合材料包括纤维层(14)并特别是由纤维层形成,所述纤维层至少主要在所述环体(10)的周长方向(15)上延伸。
8.根据上述权利要求中任意一项所述的悬架弹簧单元(1),其特征在于,设置有至少一个引导部件(16),所述引导部件引导所述环体(10)并且防止所述环体(10)由弹簧方向(12)而纵向弯曲。
9.根据上述权利要求中任意一项所述的悬架弹簧单元(1),其特征在于,所述环体(10)具有平带类型的、平面形成的环绕横截面。
10.根据权利要求9所述的悬架弹簧单元(1),其特征在于,至少一个连接部件(11)这样与所述环绕横截面连接,即,具有不变的横截面的所述平带经过与所述连接部件(11)的连接位置。
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DE102014102330.7A DE102014102330A1 (de) | 2014-02-24 | 2014-02-24 | Tragfedereinheit für ein Fahrzeugfahrwerk |
DE102014102330.7 | 2014-02-24 | ||
PCT/EP2015/053536 WO2015124693A2 (de) | 2014-02-24 | 2015-02-19 | Tragfedereinheit für ein fahrzeugfahrwerk |
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CN106062409A true CN106062409A (zh) | 2016-10-26 |
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US (1) | US10675935B2 (zh) |
EP (1) | EP3111104B1 (zh) |
JP (1) | JP2017507068A (zh) |
KR (1) | KR20160124776A (zh) |
CN (1) | CN106062409A (zh) |
DE (1) | DE102014102330A1 (zh) |
MX (1) | MX2016010969A (zh) |
RU (1) | RU2670502C2 (zh) |
WO (1) | WO2015124693A2 (zh) |
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DE102018213418B3 (de) * | 2018-08-09 | 2019-10-17 | Ford Global Technologies, Llc | Baugruppe für eine Radaufhängung eines Fahrzeugs |
CN113565910B (zh) * | 2021-07-23 | 2023-05-02 | 上海国科航星量子科技有限公司 | 一种弹性压缩伸长结构、***以及装置 |
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CN109398015B (zh) * | 2017-12-14 | 2021-06-01 | 刘守银 | 横折板簧总成及独立悬架结构 |
CN112566775A (zh) * | 2018-08-10 | 2021-03-26 | 采埃孚股份公司 | 底盘构件、制造底盘构件的方法及机动车辆的车轮悬架 |
CN112566775B (zh) * | 2018-08-10 | 2024-01-02 | 采埃孚股份公司 | 底盘构件、制造底盘构件的方法及机动车辆的车轮悬架 |
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US20170015170A1 (en) | 2017-01-19 |
WO2015124693A3 (de) | 2016-02-04 |
WO2015124693A2 (de) | 2015-08-27 |
RU2016138011A (ru) | 2018-03-29 |
KR20160124776A (ko) | 2016-10-28 |
DE102014102330A1 (de) | 2015-08-27 |
JP2017507068A (ja) | 2017-03-16 |
MX2016010969A (es) | 2016-12-20 |
EP3111104B1 (de) | 2020-07-29 |
RU2016138011A3 (zh) | 2018-03-29 |
RU2670502C2 (ru) | 2018-10-23 |
EP3111104A2 (de) | 2017-01-04 |
US10675935B2 (en) | 2020-06-09 |
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