CN108368902A - 湿式工作-摩擦衬片 - Google Patents
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Abstract
本发明涉及一种具有塑料基体的湿式工作‑摩擦衬片,该塑料基体含有至少一种填料。本发明的特征在于,该湿式工作‑摩擦衬片含有作为填料的膨润土。
Description
技术领域
本发明涉及一种具有含有至少一种填料的塑料基体的湿式工作-摩擦衬片。
背景技术
从德国专利文件DE 10 2012 219 303 A1已知一种具有塑料基体的摩擦和/或滑动衬片,其含有作为填料的石墨。从德国专利文件DE 10 2010 021 722 A1已知一种用于制造用于机动车辆中的摩擦离合器的摩擦衬片的方法,其中,由水和固体构成的分散体被吸到筛状表面上并且固体沉积在筛状表面上,其中,筛状表面被设计为三维结构的形式,其中,在制造摩擦衬片时添加摩擦材料组分的固体含量包括三十五至八十重量百分比的棉纤维,一至十重量百分比的芳族聚酰胺纤维,一至四十重量百分比的二氧化硅,五至三十重量百分比的酚醛树脂和造纸常用的加工助剂。
发明内容
本发明所要解决的技术问题是,简化或改善具有含有至少一种填料的塑料基体的湿式工作-摩擦衬片的制造和/或性能。
该技术问题被一种具有含有至少一种填料的塑料基体的湿式工作-摩擦衬片这样解决,即使得湿式工作-摩擦衬片含有作为填料的膨润土。湿式工作-摩擦衬片由摩擦衬片材料构成,摩擦衬片材料优选包含多个层。摩擦衬片材料优选地包括至少一个底层(也被称为下层)和至少一个表层(也被称为上层)。湿式工作-摩擦衬片优选设计为纸基衬片。传统的摩擦衬片配方例如包含作为填料的硅藻土。硅藻土的形态,粒度分布,处理以及分解能够通过湿式工作-摩擦衬片运行期间的转速差在运行过程中影响摩擦特性,特别是摩擦系数。在本发明范围中进行的试验和研究中已经发现,通过使用膨润土,能够在出现关于转速差的正摩擦系数梯度的情况下,实现摩擦系数水平和静态摩擦系数的显着增加。在这种情况下,填料膨润土能够完全地或部分地替代传统填料。填料膨润土能够在单层或多层摩擦纸中有利地用于不同的层。膨润土是作为具有片状结构的层状硅酸盐的粘土矿物。具有作为填料的膨润土的湿式工作-摩擦衬片例如非常适合用于双离合变速器。但是,具有填料膨润土的摩擦衬片材料也非常适合用于以下应用:变矩器,自动变速箱,锁止装置,双离合器,同步器和其他湿式工作的摩擦应用。湿式工作是指,湿式工作-摩擦衬片在工作期间与液体润滑和/或冷却介质(例如油)接触。
湿式工作-摩擦衬片的优选实施例的特征在于,湿式工作-摩擦衬片含有作为单独填料的膨润土。用作填料的膨润土例如是堆比重约为每升一百四十四克的白色粉末。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,湿式工作-摩擦衬片含有作为多种填料中的一种的膨润土。填料膨润土例如能够与至少一种传统的填料(如硅藻土)结合。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,湿式工作-摩擦衬片包括多个层,其中至少一层含有作为填料的膨润土。如果湿式工作-摩擦衬片包括底层和表层,则表层优选含有膨润土。底层则优选不含膨润土。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,膨润土含有作为主要成分的蒙脱石。已经证明,基于蒙脱石的膨润土在本发明的范围内进行的实验和研究中特别有利。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,湿式工作-摩擦衬片包括至少一个底层和至少一个表层,所述表层和/或所述底层含有膨润土。底层有利地通过纤维加强。纤维例如是Carbonfasern,其也被称为碳纤维(Kohlenstofffasern)。备选地或附加地,底层能够有利地包含芳族聚酰胺纤维。表层优选不含增强纤维。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,表层含有芳族聚酰胺和/或棉短绒。优选将芳族聚酰胺嵌入到表层的塑料基体中。棉短绒是指棉花的较长的种毛。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,底层含有芳族聚酰胺,硅藻土,棉短绒和/或纤维,特别是碳纤维。有利地使用合成树脂,以形成塑料基体。合成树脂例如是酚醛树脂。
湿式工作-摩擦衬片的另外的优选实施例的特征在于,湿式工作-摩擦衬片是纸基衬片。纸基衬片的制造与造纸相同或相似。在制造纸基衬片时,首先例如生产纸幅。能够从纸幅上切出纸基衬片。
必要时,本发明还涉及一种用于制造上述湿式工作-摩擦衬片的摩擦衬片材料。摩擦衬片材料能够单独加工。
本发明还涉及一种具有至少一个上述湿式工作-摩擦衬片的摩擦片。摩擦片优选包括衬片支承件,至少一个上述湿式工作-摩擦衬片被固定在该衬片支承件上。优选在衬片支承件上固定两个上述的湿式工作-摩擦衬片。湿式工作的摩擦衬片与衬片支承件优选材料式连接,例如粘接。此外,湿式工作-摩擦衬片能够与衬片支承件铆接。
必要时,本发明还涉及一种具有至少一个上述摩擦片的湿式工作的多片式离合器。湿式工作的多片式离合器优选用于汽车领域。
附图说明
下面通过结合附图详细阐述的不同的实施例给出本发明另外的优点、技术特征以及细节。附图为:
图1是根据本发明的、具有两个湿式工作-摩擦衬片的衬片支承件的横截面的极大简化的视图;
图2是在两个由钢材制成的配对离合器部件之间的、具有图1的湿式工作-摩擦衬片的衬片支承件的布置图;
图3是具有湿式工作的离合器部件和由钢材制成的湿式工作的配对离合器部件的离合器片组的简化图。
具体实施方式
在图1中以极大简化的横截面示出了具有衬片支承件3的湿式工作-离合器部件1。衬片支承件3包括基体5,该基体5基本上具有环体横截面呈矩形的环形盘的形状。
在基体5上固定两个湿式工作-摩擦衬片6,7。湿式工作-摩擦衬片6,7也具有环体横截面呈矩形的环形盘的形状。湿式工作-摩擦衬片6,7具有与衬片支承件3的基体5相同的外径。衬片支承件3具有比湿式工作-摩擦衬片6,7更小的内径。
湿式工作-离合器部件1例如是多片式离合器的内离合器片。为实现与多片式离合器的的内离合器片支承件的抗扭连接,衬片支承件3在径向内侧例如具有内齿部。
在图2中,将图1的湿式工作-离合器部件1布置在两个湿式工作-的配对离合器部件11,12之间。两个配对离合器部件11,12分别具有环体横截面呈矩形的圆环盘形状的基体15,16。
配对离合器部件11,12的基体15,16的内径与在衬片支承件3中的湿式工作-摩擦衬片6,7的内径一样大。然而,配对离合器部件11,12具有比带有湿式工作-摩擦衬片6,7的衬片支承件3更大的外径。
配对离合器部件11,12例如是上述多片式离合器的外离合器片。为实现与外离合器片支承件的抗扭连接,配对离合器部件11,12的径向外侧有利地设有外齿部。
衬片支承件3上的湿式工作-摩擦衬片6,7由湿式工作-摩擦衬片材料构成。衬片支承件3由钢材构成。配对离合器部件11,12同样由钢材构成。
图3简化地示出多片式离合器的离合器片组20。除湿式工作-离合器部件1外,离合器片组20还包括三个另外的湿式工作-离合器部件22,23和24。湿式工作-离合器部件22至24与湿式工作-离合器部件1完全相同地设计。湿式工作-离合器部件1,22至24是离合器片组20中的内离合器片。
除图2的配对离合器部件11,12外,离合器片组20还包括三个另外的湿式工作的配对离合器部件33,34,35。湿式工作-离合器部件1,22至24与湿式工作的对置离合器部件11,12,33至35交替布置。
配对离合器部件11,12和33至35是离合器片组20中的外离合器片。在这种情况下,配对离合器部件11是图3中的离合器片组20的左侧端部离合器片。类似地,在图3中右侧布置的配对离合器部件35是离合器片组20的第二端部离合器片。湿式工作-离合器部件1,22至24被分别布置在两个配对离合器部件11,12;33,34;34,35之间。
湿式工作-摩擦衬片6,7分别包括也被称为下层的底层和也被称为上层的表层。底层例如包括或者由芳族聚酰胺,硅藻土,棉短绒,碳纤维和树脂组成。底层例如包括或者由芳族聚酰胺,膨润土,棉短绒和树脂组成。
膨润土仅用作为上层的填料。所使用的膨润土优选为基于蒙脱土的化学改性的页硅酸盐,其缩写为EXM 1936。在这种情况下,它是一种堆比重约为每升一百四十四克的白色粉末。
附图标记列表
1 湿式工作-离合器部件
3 衬片支承件
5 基体
6 湿式工作-摩擦衬片
7 湿式工作-摩擦衬片
11 配对离合器部件
12 配对离合器部件
15 基体
16 基体
20 离合器片组
22 湿式工作-离合器部件
23 湿式工作-离合器部件
24 湿式工作-离合器部件
33 配对离合器部件
34 配对离合器部件
35 配对离合器部件
Claims (10)
1.一种具有塑料基体的湿式工作-摩擦衬片(6,7),所述塑料基体含有至少一种填料,其特征在于,所述湿式工作-摩擦衬片(6,7)含有作为填料的膨润土。
2.根据权利要求1所述的湿式工作-摩擦衬片,其特征在于,所述湿式工作-摩擦衬片(6,7)含有作为唯一填料的膨润土。
3.根据权利要求1所述的湿式工作-摩擦衬片,其特征在于,所述湿式工作-摩擦衬片(6,7)含有作为多种填料中的一种的膨润土。
4.根据上述权利要求中任一项所述的湿式工作-摩擦衬片,其特征在于,所述湿式工作-摩擦衬片(6,7)包括多个层,其中至少一层含有作为填料的膨润土。
5.根据上述权利要求中任一项所述的湿式工作-摩擦衬片,其特征在于,所述膨润土含有作为主要成分的蒙脱石。
6.根据上述权利要求中任一项所述的湿式工作-摩擦衬片,其特征在于,所述湿式工作-摩擦衬片(6,7)具有至少一个底层和至少一个表层,所述表层和/或所述底层含有膨润土。
7.根据权利要求6所述的湿式工作-摩擦衬片,其特征在于,所述表层含有芳族聚酰胺和/或棉短绒。
8.根据权利要求6或7所述的湿式工作-摩擦衬片,其特征在于,所述底层含有芳族聚酰胺,硅藻土,棉短绒和/或纤维,特别是碳纤维。
9.根据上述权利要求中任一项所述的湿式工作-摩擦衬片,其特征在于,所述湿式工作-摩擦衬片(6,7)是纸基衬片。
10.一种摩擦衬片材料,用于制造根据上述权利要求中任一项所述的湿式工作-摩擦衬片(6,7)。
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CN113508244A (zh) * | 2019-03-13 | 2021-10-15 | 米巴摩擦技术有限公司 | 摩擦结构组件 |
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JP2019505735A (ja) | 2019-02-28 |
DE112016005478A5 (de) | 2018-08-09 |
CN108368902B (zh) | 2023-06-27 |
DE102015223893A1 (de) | 2017-06-01 |
WO2017092747A1 (de) | 2017-06-08 |
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