WO2019237358A1 - 对中式分离副缸 - Google Patents

对中式分离副缸 Download PDF

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Publication number
WO2019237358A1
WO2019237358A1 PCT/CN2018/091654 CN2018091654W WO2019237358A1 WO 2019237358 A1 WO2019237358 A1 WO 2019237358A1 CN 2018091654 W CN2018091654 W CN 2018091654W WO 2019237358 A1 WO2019237358 A1 WO 2019237358A1
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WO
WIPO (PCT)
Prior art keywords
axial
piston
seal
cylinder
axial vibration
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Application number
PCT/CN2018/091654
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English (en)
French (fr)
Inventor
郑飞翔
科特加罗·瓦勒瑞
Original Assignee
舍弗勒技术股份两合公司
郑飞翔
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 舍弗勒技术股份两合公司, 郑飞翔 filed Critical 舍弗勒技术股份两合公司
Priority to PCT/CN2018/091654 priority Critical patent/WO2019237358A1/zh
Publication of WO2019237358A1 publication Critical patent/WO2019237358A1/zh

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • 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
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F16F1/22—Leaf springs with means for modifying the spring characteristic

Definitions

  • the invention relates to a clutch release system, in particular to a center-type separation auxiliary cylinder, which includes a cylinder block, a seal capable of moving in the cylinder block along an axial direction of the cylinder block, a seal carrier, and a piston.
  • the present invention has been made based on the shortcomings of the prior art, and the object of the present invention is to provide a center-type separation sub-cylinder that includes an axial vibration absorbing member, so that the seal is less affected by vibration and reduced. Vibration of the clutch pedal when subjected to less pressure.
  • a centering type separation sub-cylinder includes a cylinder block, a seal capable of moving in the cylinder block along an axial direction of the cylinder block, a seal carrier, and a piston.
  • the auxiliary cylinder also includes an axial vibration absorber, which is installed between the piston and the seal carrier, and the axial vibration absorber has a C-shape, and the axial vibration absorber The piece extends wavy along its C-shape so as to have undulations in the axial direction.
  • the axial height of the axial vibration absorbing member is equal to the no-load distance between the piston and the seal carrier.
  • the axial height of the axial vibration absorbing member is smaller than the no-load distance between the piston and the seal carrier.
  • the center-type separation sub-cylinder includes a plurality of the axial vibration absorbers which are sequentially disposed in the axial direction.
  • the axial vibration absorbing member is made of metal.
  • the axial vibration absorbing member is made of steel.
  • the axial vibration absorbing member is disposed between the piston and the seal carrier and can be elastically deformed in the axial direction, thereby avoiding rigidity between the piston and the seal carrier
  • the connection on the one hand, makes the seal less affected by engine vibration on the one hand, and on the other hand reduces the vibration of the clutch pedal in a semi-interlocked state.
  • FIG. 1 shows an axial cross-sectional view of a centering type separation sub-cylinder according to an embodiment of the present invention, in which an axial vibration absorbing member is disposed between a piston and a seal carrier.
  • FIG. 2 is an axial cross-sectional view showing a structure of an axial vibration absorber located between a piston and a seal carrier.
  • FIG. 3 shows a perspective view of the axial vibration absorber shown in FIG. 1.
  • FIG. 1 shows an axial cross-sectional view of a centering type separation sub-cylinder 100 according to an embodiment of the present invention, in which an axial vibration absorbing member 1 is provided between a piston 2 and a seal carrier 3.
  • the axial vibration absorbing member 1 has a waveform extension and the axial height (natural state, that is, the axial height in an uncompressed state, the same below) is equal to the no-load distance between the piston 2 and the seal carrier 3 .
  • the no-load distance indicates the distance between the piston 2 and the seal carrier 3 when the clutch pedal is not depressed.
  • a plurality of axial vibration absorbing members 1 may be provided in the axial direction.
  • the axial vibration absorbing member 1 may be made of metal, for example, steel.
  • FIG. 2 is an axial sectional view showing the structure of the axial vibration absorber 1 located between the piston 2 and the seal carrier 3.
  • the axial vibration absorber 1 extends substantially in the form of a sine wave.
  • FIG. 3 shows a perspective view of the axial vibration absorber 1 shown in FIG. 1. It can be seen that the axial vibration absorber 1 is C-shaped and extends in a wavy shape along its C-shape so as to have undulations in the axial direction A. Here, the C-shape of the axial vibration absorber 1 is shown schematically.
  • the axial vibration absorbing member 1 is disposed between the piston 2 and the seal bearing member 3, and the seal bearing member 3 is used to carry the seal member 4.
  • the seal member 4 extends into the cylinder block 5 and can be in the cylinder.
  • the body 5 moves along the axial direction A of the cylinder body 5.
  • the axial vibration absorbing member 1 can be elastically deformed in the axial direction, thereby avoiding a rigid connection between the piston 2 and the seal carrier 3.
  • the stiffness of the axial vibration absorbing member 1 in the axial direction can be preset through parameter setting, for example, the stiffness is preset by changing the following parameters: the strength of the material for manufacturing the axial vibration absorbing member 1, and the axial vibration absorption The size of the piece (axial thickness or radial width), the shape and number of corrugations.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

一种对中式分离副缸（100），包括缸体（5）、能够在所述缸体（5）中沿着所述缸体（5）的轴向移动的密封件（4）、密封件承载件（3）和活塞（2），所述对中式分离副缸（100）还包括轴向振动吸收件（1），所述轴向振动吸收件（1）安装于所述活塞（2）和所述密封件承载件（3）之间，并且所述轴向振动吸收件（1）呈C形，所述轴向振动吸收件（1）沿着其C形形状呈波浪状延伸从而在所述轴向上具有起伏。对中式分离副缸（100）通过轴向振动吸收件（1）来保护密封件（4）较小程度地受振动影响并且减小离合器踏板在承受较小压力时的振动。

Description

对中式分离副缸 技术领域
本发明涉及离合器分离系统，具体涉及对中式分离副缸，其包括缸体、能够在缸体中沿着缸体的轴向移动的密封件、密封件承载件和活塞。
背景技术
在对中式分离副缸(CSC:Concentric slave cylinder)中，当离合器处于连动状态时通过活塞和密封件承载件之间的间隙来吸收轴向振动。在离合器踏板被踩下的时候，上述间隙消失因此轴向振动被传递到密封件。由此导致密封件受到的应力剧烈增加。最终增加的应力会导致密封件失效从而产生泄露。活塞和密封件承载件之间的间隙称为游隙，其在系统中没有压力(离合器连动状态)的情况下保护密封件不受振动影响。然而，在驾驶者轻踏离合器踏板(例如堵车情况下使离合器处于半连动状态)时，游隙消失，从而活塞和密封件承载件之间刚性连接，振动能够从发动机传递到密封件以及离合器踏板。
发明内容
基于上述现有技术的缺陷做出了本发明，本发明的发明目的在于提供一种对中式分离副缸，其包括轴向振动吸收件，从而使密封件较小程度地受振动影响并且减小离合器踏板在承受较小压力时的振动。
根据本发明的一个实施方式的对中式分离副缸包括缸体、能够在所述缸体中沿着所述缸体的轴向移动的密封件、密封件承载件和活塞，所述对中式分离副缸还包括轴向振动吸收件，所述轴向振动吸收件安装于所述活塞和所述密封件承载件之间，并且所述轴向振动吸收件呈C形，所述轴向振动吸收 件沿着其C形形状呈波浪状延伸从而在所述轴向上具有起伏。
优选地，所述轴向振动吸收件的轴向高度等于所述活塞和所述密封件承载件之间的空载距离。
优选地，所述轴向振动吸收件的轴向高度小于所述活塞和所述密封件承载件之间的空载距离。
优选地，所述对中式分离副缸包括在所述轴向上相继设置的多个所述轴向振动吸收件。
优选地，所述轴向振动吸收件由金属制成。
优选地，所述轴向振动吸收件由钢制成。
在根据本发明的对中式分离副缸中，轴向振动吸收件设置于活塞和密封件承载件之间并且可以在轴向上发生弹性形变，因此避免了活塞和密封件承载件之间的刚性连接，如此一方面使密封件较小程度地受发动机振动的影响，另一方面减小了离合器踏板在半连动状态时的振动。
附图说明
图1示出了根据本发明的一个实施方式的对中式分离副缸的轴向剖视图，其中活塞和密封件承载件之间设置有轴向振动吸收件。
图2是示出了位于活塞和密封件承载件之间的轴向振动吸收件的结构的轴向剖视图。
图3示出了图1中示出的轴向振动吸收件的立体图。
附图标记说明
1轴向振动吸收件；2活塞；3密封件承载件；4密封件；5缸体；
100对中式分离副缸；
A轴向。
具体实施方式
以下参照说明书附图来说明本发明的具体实施方式。
图1示出了根据本发明的一个实施方式的对中式分离副缸100的轴向剖视图，其中活塞2和密封件承载件3之间设置有轴向振动吸收件1。在此，轴向振动吸收件1呈波形延伸并且轴向高度(自然状态，即未被压缩的状态下的轴向高度，下同)等于活塞2和密封件承载件3之间的空载距离。空载距离表示离合器踏板未被踏下时活塞2和密封件承载件3之间的距离。也可以设置轴向振动吸收件1的轴向高度小于活塞2和密封件承载件3之间的空载距离。也可以在轴向上设置多个轴向振动吸收件1。轴向振动吸收件1可以由金属制成，例如由钢制成。
图2是示出了位于活塞2和密封件承载件3之间的轴向振动吸收件1的结构的轴向剖视图。在此实施方式中，轴向振动吸收件1基本呈正弦波的形式延伸。
图3示出了图1中示出的轴向振动吸收件1的立体图。可以看出，轴向振动吸收件1呈C形并且沿着其C形形状呈波浪状延伸从而在轴向A上具有起伏。此处示意性地示出了轴向振动吸收件1的C字形形状。
在实际应用中，轴向振动吸收件1设置于活塞2和密封件承载件3之间，密封件承载件3用于承载密封件4，密封件4伸入的缸体5中并且可以在缸体5中沿着缸体5的轴向A移动。轴向振动吸收件1可以在轴向上发生弹性形变，因此避免了活塞2和密封件承载件3之间的刚性连接。可以通过参数设定来预设轴向振动吸收件1在轴向上的刚度，例如通过以下参数的改变来进行刚度的预设：制造轴向振动吸收件1的材料的强度、轴向振动吸收件的尺寸(轴向厚度或径向宽度)、波纹的形状及数量。
本发明的保护范围不限于上述具体实施方式中说明的具体实施例，而是只要满足本发明的权利要求的技术特征的组合就落入了本发明的保护范围之内。

Claims (6)

  1. 一种对中式分离副缸，其包括缸体、能够在所述缸体中沿着所述缸体的轴向移动的密封件、密封件承载件和活塞，其特征在于，所述对中式分离副缸还包括轴向振动吸收件，所述轴向振动吸收件安装于所述活塞和所述密封件承载件之间，并且所述轴向振动吸收件呈C形，所述轴向振动吸收件沿着其C形形状呈波浪状延伸从而在所述轴向上具有起伏。
  2. 根据权利要求1所述的对中式分离副缸，其特征在于，所述轴向振动吸收件的轴向高度等于所述活塞和所述密封件承载件之间的空载距离。
  3. 根据权利要求1所述的对中式分离副缸，其特征在于，所述轴向振动吸收件的轴向高度小于所述活塞和所述密封件承载件之间的空载距离。
  4. 根据权利要求1所述的对中式分离副缸，其特征在于，所述对中式分离副缸包括在所述轴向上相继设置的多个所述轴向振动吸收件。
  5. 根据权利要求1至4中任一项所述的对中式分离副缸，其特征在于，所述轴向振动吸收件由金属制成。
  6. 根据权利要求1至4中任一项所述的对中式分离副缸，其特征在于，所述轴向振动吸收件由钢制成。
PCT/CN2018/091654 2018-06-15 2018-06-15 对中式分离副缸 WO2019237358A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068250A (en) * 1996-09-23 2000-05-30 Proteus Engineering Inc. Composite multi-wave compression spring
CN101479495A (zh) * 2006-06-20 2009-07-08 卢克摩擦片和离合器两合公司 可液压操作的离合器分离器
CN104641142A (zh) * 2012-07-16 2015-05-20 蒂森克虏伯普利斯坦股份公司 在区域内具有线性特征的波形弹簧
CN104736873A (zh) * 2012-08-02 2015-06-24 舍弗勒技术股份两合公司 液压系统的活塞缸单元
CN204805399U (zh) * 2015-05-05 2015-11-25 永嘉县三和弹簧有限公司 一种耐高温耐腐蚀波型弹簧
DE102016216987A1 (de) * 2015-09-25 2017-03-30 Schaeffler Technologies AG & Co. KG Kupplungsgeber mit radial geschachtelten Dichtungen, (Doppel-)Kupplung mit Kupplungsgeber und Antriebstrang

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6068250A (en) * 1996-09-23 2000-05-30 Proteus Engineering Inc. Composite multi-wave compression spring
CN101479495A (zh) * 2006-06-20 2009-07-08 卢克摩擦片和离合器两合公司 可液压操作的离合器分离器
CN104641142A (zh) * 2012-07-16 2015-05-20 蒂森克虏伯普利斯坦股份公司 在区域内具有线性特征的波形弹簧
CN104736873A (zh) * 2012-08-02 2015-06-24 舍弗勒技术股份两合公司 液压系统的活塞缸单元
CN204805399U (zh) * 2015-05-05 2015-11-25 永嘉县三和弹簧有限公司 一种耐高温耐腐蚀波型弹簧
DE102016216987A1 (de) * 2015-09-25 2017-03-30 Schaeffler Technologies AG & Co. KG Kupplungsgeber mit radial geschachtelten Dichtungen, (Doppel-)Kupplung mit Kupplungsgeber und Antriebstrang

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