CN101970898B - 摩擦片衬 - Google Patents
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Abstract
本发明涉及一种摩擦片衬,该摩擦片衬包括摩擦件和承载件。摩擦件作为由带材卷绕的掺入粘合剂的预压制坯经历热压方法。本发明提出,承载件与预压制坯一起经历热压方法,由此,通过粘合剂的聚合提供摩擦件与承载件之间的连接。
Description
本发明涉及一种摩擦片衬以及一种用于制造摩擦片衬的方法,该摩擦片衬尤其是用于离合器盘,该摩擦片衬具有用卷绕的带材制成的摩擦件和承载件。
这种摩擦片衬尤其是用于机动车中的摩擦离合器的离合器盘,其中,在摩擦离合器的金属摩擦面与摩擦片衬之间产生摩擦锁合,该摩擦锁合视摩擦离合器的工作方式而定可以是附着的或滑转的并且将相应的力矩从驱动单元传递给从动部分。
由于摩擦离合器的转速高,摩擦片衬应具有高的破裂转速。为了保证长时间工作,摩擦片衬应磨损低,但具有好的摩擦系数。
为了提高摩擦片衬的破裂强度,已经公知:将用抗摩擦材料例如纱制成的、用粘合剂浸渍的带材在圆周方向上波状地置于多个扁平的层中,其中,例如带材的圈在形成换向区域和保留内直径的情况下椭圆形地从外直径被引导到外直径,其中,换向区域从一个圈到另一个圈分别在圆周上角度错位。由此,带材占摩擦片衬总成分的份额、由此其摩擦强度和破裂强度可提高。卷绕大多借助于卷绕机来进行,其中,根据定义,在圆周方向上每个循环卷绕一个层。在摩擦片衬的外圆周上换向区域的数量被称为卷绕比例。1:10的卷绕比例例如说明带材在一个圆周上在外圆周上具有十个换向区域。以此方式卷绕的预压制坯以热压方法压到其最终形状。为了实现承受所要求的运转功率的、稳定且抗变形的摩擦片衬,该摩擦片衬以经验求得的厚度来实施,该摩擦片衬除了在工作期间由于磨损而减小的摩擦层之外还包括承载层,该承载层尤其可具有另外的、承载能力所需的卷绕。
尤其是当摩擦片衬薄时,在热作用下可产生摩擦片衬的翘曲。因此使用承载板,这种承载板在由热压的预压制坯构成的摩擦件制成之后以多个方法步骤与承载件粘接成摩擦片衬。
因此,本发明的任务在于,提出一种卷绕的摩擦片衬,该摩擦片衬就其制造而言可较简单且成本较低廉地制造。
该任务通过一种摩擦片衬来解决,该摩擦片衬尤其是用于摩擦离合器,该摩擦片衬包括至少由带材和粘合剂制成的环状的摩擦件和圆环状的承载件,其中,该带材作为卷绕的预压制坯在掺入粘合剂的情况下经历热压方法来制造该摩擦件,将该预压制坯在该热压方法期间与该承载件挤压到一起。
本发明提供了一种用于制造摩擦片衬的方法,所述摩擦片衬尤其是用于摩擦离合器,该摩擦片衬包括至少由带材和粘合剂制成的环状的摩擦件和圆环状的承载件,其中,该带材作为卷绕的预压制坯在掺入粘合剂的情况下经历热压方法来制造该摩擦件,其中,将该预压制坯在该热压方法期间与该承载件挤压到一起,其特征在于,该承载件由圆环状的板构成,并且其中在该热压过程期间借助于该粘合剂的聚合实现摩擦件与承载件之间的连接,并且其中根据该预压制坯的卷绕比例调节该摩擦件的热系数。优选地,该卷绕比例为1:2至1:6之间。优选地,该承载件在其内圆周上对中,该预压制坯在径向外部和径向内部定位并且在该承载件上对中地为该热压过程作准备。
另外,该任务通过一种用于制造摩擦片衬的方法来解决,该摩擦片衬具有卷绕的摩擦件和承载件,该方法具有下述方法步骤:
-将粘合剂施加在具有粘合剂的带材上,
-由带材卷绕成预压制坯,
-将预压制坯在承载件上对中,
-对预压制坯和承载件进行热压。
以热压方法挤压到一起承载件和摩擦件节省了这两个件彼此间的费事的粘接。因此可节省一些工作步骤如粘接剂涂覆、粘接剂干燥和晾干的件的接合以及粘接材料的材料投入。热压过程期间与粘接等值的步骤是摩擦件例如粘合剂的组分的聚合,该聚合使得摩擦件与承载件之间紧密连接,因此替代粘接。
预压制坯有利地由带材构成,该带材用粘合剂处理。在此使在摩擦系数和磨损方面优化的带材达到粘合剂和带材的恒定比例。带材例如可由芳族聚酰胺纤维、玻璃短纤维、粘胶纤维和PAN纤维以及黄铜线或者例如由玻璃丝和金属线构成。在热压方法中例如通过缩合反应、加成反应或置换反应经历另外的交联或聚合的聚合组分可由热固性组分例如酚醛树脂或三聚氰胺树脂以及弹性体组分例如SBR或NBR橡胶构成。填料例如是硫酸钡、高岭土或炭黑。接着将干燥的带材卷绕成预压制坯。
稳定的合成材料并且有利的是板件适用于承载件。承载件在与预压制坯挤压到一起之前有利地为了与该预压制坯连接而作好准备例如除脂和/或粗糙化。作为替换方案或者附加地,表面为了与粘合剂连接而可通过聚合反应来活化,例如极化或酸处理。承载件可由板冲制并且例如在环状的摩擦件的内圆周的径向内部具有接片,这些接片具有用于被接收在离合器盘的法兰件上的孔。例如两个摩擦片衬在中间布置衬弹簧区段的情况下叠置在承载件上并且与离合器盘的法兰件铆接。为了轴向固定和防扭转,可在热压过程之后在摩擦片衬中加工孔,两个彼此对置的摩擦片衬通过这些孔与衬弹簧区段铆接。通过用由板制成的承载件替代由衬材料制成的承载层可将卷绕的摩擦片衬构造得明显薄。
根据本发明构思,以此方式制造的摩擦片衬可进一步优化,其方式是使摩擦件的热系数与承载件的膨胀相匹配。这有利地除了使材料协调之外还根据预压制坯的卷绕比例来进行。已经证实,通过带材的各个条的由半径和圆周撑开的摩擦片衬面的由卷绕比例预给定的取向来在径向方向或圆周方向上影响热膨胀系数。另外,已经证实,在卷绕比例为1:2至1:6之间时可与由板制成的承载件相联系地实现特别好的协调。
在以热压方法制造时,预压制坯有利地在承载件上对中,其中,在给料或挤压工具上,承载件可在内圆周上例如借助于接片定位并且为此预压制坯在内圆周和外圆周上在承载件上对中,由此,摩擦件的内半径和外半径与承载件对齐。
借助于唯一的附图对本发明进行详细描述。该图示出了由摩擦件2和承载件3构成的摩擦片衬1的局部作为摩擦件2的视图,该承载件用板制成。承载件3具有与摩擦件2相同的外直径并且具有径向向内扩宽的接片4,这些接片借助于孔5被接收在离合器盘上,例如与另外的摩擦片衬镜像地在中间布置有衬弹簧区段的情况下与离合器盘的法兰件铆接。优选冲制的承载件3的缺口6用于使摩擦片衬被弹性地接收在离合器盘上,例如以便补偿驱动单元与变速器输入轴之间的摆动振动,离合器盘被接收在该变速器输入轴上。
摩擦件2借助于热压方法被接收在承载件3上并且与该承载件借助于粘合剂的聚合反应而材料锁合地连接。在热压过程期间预给定摩擦件的表面形状。为此例如可在径向方向上和/或在圆周方向上压入槽7。在圆周上分布地设置有两类孔8、9,这些孔用于使两个镜像地设置的摩擦片衬1与离合器盘铆接,其中,较宽的孔8分别接收铆钉头,具有较小直径的孔9分别接收在两侧铆接的离合器盘的铆钉爪。
装备有这种摩擦片衬的离合器盘尤其是对于在用于双离合器工作的双离合器中使用而言是有利的,因为由于摩擦片衬的轴向结构高度减小而可在窄结构空间中使用。
参考标号清单
1 摩擦片衬 6 缺口
2 摩擦件 7 槽
3 承载件 8 孔
4 接片 9 孔
5 孔
Claims (3)
1.一种用于制造摩擦片衬的方法,所述摩擦片衬用于摩擦离合器,该摩擦片衬包括至少由带材和粘合剂制成的环状的摩擦件和圆环状的承载件,其中,该带材作为卷绕的预压制坯在掺入粘合剂的情况下经历热压方法来制造该摩擦件,其中,将该预压制坯在该热压方法期间与该承载件挤压到一起,其特征在于,该承载件由圆环状的板构成,并且其中在该热压过程期间借助于该粘合剂的聚合实现摩擦件与承载件之间的连接,并且其中根据该预压制坯的卷绕比例调节该摩擦件的热系数。
2.根据权利要求1所述的制造摩擦片衬的方法,其特征在于:该卷绕比例为1:2至1:6之间。
3.根据权利要求1或2所述的制造摩擦片衬的方法,其特征在于:该承载件在其内圆周上对中,该预压制坯在径向外部和径向内部定位并且在该承载件上对中地为该热压过程作准备。
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WO2012014535A1 (ja) * | 2010-07-27 | 2012-02-02 | アイシン化工株式会社 | 乾式摩擦材及びその製造方法 |
JP5921567B2 (ja) * | 2010-12-13 | 2016-05-24 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | 摩擦体の製造方法 |
DE102011109452A1 (de) * | 2011-08-04 | 2013-02-07 | Borgwarner Inc. | Reiblamette mit einem Papierreibbelag, Verfahren zur Herstellung einer solchen Reiblamelle und nasslaufende Lamellenkupplung oder -bremse mit einer solchen Reiblamelle |
US20160091040A1 (en) | 2013-06-04 | 2016-03-31 | Schaeffler Technologies AG & Co. KG | Multi-layer friction lining |
DE102014218855A1 (de) | 2014-09-19 | 2016-03-24 | Schaeffler Technologies AG & Co. KG | Reibbelag |
DE102015225356A1 (de) * | 2015-12-16 | 2017-06-22 | Schaeffler Technologies AG & Co. KG | Verfahren zum Herstellen eines Reibbelags |
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US2277602A (en) * | 1939-07-24 | 1942-03-24 | Raybestos Manhattan Inc | Method of making an endless wound clutch facing |
US3068131A (en) * | 1958-10-03 | 1962-12-11 | Russell Mfg Co | Clutch facing |
US3751330A (en) * | 1971-03-15 | 1973-08-07 | Abex Corp | Railroad brake shoes |
JP3940341B2 (ja) * | 2001-12-20 | 2007-07-04 | 株式会社エクセディ | 2層構造フェーシングの製造方法 |
DE102008014848A1 (de) * | 2007-04-02 | 2008-10-09 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Reibbelag |
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2008
- 2008-12-22 WO PCT/DE2008/002145 patent/WO2009094968A1/de active Application Filing
- 2008-12-22 EP EP08871858.0A patent/EP2247870B1/de not_active Revoked
- 2008-12-22 CN CN200880125933.6A patent/CN101970898B/zh not_active Expired - Fee Related
- 2008-12-22 DE DE112008003791T patent/DE112008003791A5/de not_active Withdrawn
- 2008-12-22 DE DE102008064478A patent/DE102008064478A1/de not_active Withdrawn
-
2010
- 2010-07-30 US US12/847,083 patent/US8304052B2/en not_active Expired - Fee Related
Patent Citations (6)
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US3738901A (en) * | 1971-03-29 | 1973-06-12 | H Matsushima | Clutch disk and method of making |
DE19503738C1 (de) * | 1995-02-04 | 1996-04-04 | Fichtel & Sachs Ag | Kupplungsscheibe für Reibungskupplung |
EP1063444A1 (en) * | 1999-06-24 | 2000-12-27 | Kabushiki Kaisha F.C.C. | Dry clutch facing, and process for producing the same |
CN2436716Y (zh) * | 2000-07-13 | 2001-06-27 | 梁万清 | 机动车制动器衬片 |
CN2533330Y (zh) * | 2001-10-25 | 2003-01-29 | 王奎 | 一次性热压成型离合器片 |
CN200982369Y (zh) * | 2006-12-14 | 2007-11-28 | 洪建栋 | 一种盘式刹车片 |
Also Published As
Publication number | Publication date |
---|---|
DE102008064478A1 (de) | 2009-08-06 |
EP2247870B1 (de) | 2013-04-10 |
US8304052B2 (en) | 2012-11-06 |
CN101970898A (zh) | 2011-02-09 |
WO2009094968A1 (de) | 2009-08-06 |
EP2247870A1 (de) | 2010-11-10 |
DE112008003791A5 (de) | 2010-12-30 |
US20100294615A1 (en) | 2010-11-25 |
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