CN104565067A - 车辆的液压衬套 - Google Patents

车辆的液压衬套 Download PDF

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Publication number
CN104565067A
CN104565067A CN201310752148.6A CN201310752148A CN104565067A CN 104565067 A CN104565067 A CN 104565067A CN 201310752148 A CN201310752148 A CN 201310752148A CN 104565067 A CN104565067 A CN 104565067A
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China
Prior art keywords
liquid chamber
resilient member
retainer
hydraulic bushing
outer tube
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CN201310752148.6A
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English (en)
Inventor
文河景
金载训
金世镒
李星学
朴钟成
朴盛煜
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Hyundai Motor Co
Hyundai Mobis Co Ltd
Kia Corp
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Hyundai Motor Co
Kia Motors Corp
Hyundai Mobis Co Ltd
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Publication of CN104565067A publication Critical patent/CN104565067A/zh
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/14Units of the bushing type, i.e. loaded predominantly radially
    • F16F13/1409Units of the bushing type, i.e. loaded predominantly radially characterised by buffering features or stoppers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/14Units of the bushing type, i.e. loaded predominantly radially
    • F16F13/1418Units of the bushing type, i.e. loaded predominantly radially characterised by the location or shape of the equilibration chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/14Units of the bushing type, i.e. loaded predominantly radially
    • F16F13/1463Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

本发明提供一种车辆的下臂的液压衬套,包括内管、外管、设置在内管与外管之间且将内管连接至外管的弹性构件、以及界定在弹性构件内的液室。流体被密封在液室内。止动件从内管外周朝向外管径向突出。弹性构件结合到止动件,使得弹性结构环绕止动件。

Description

车辆的液压衬套
技术领域
本发明大体上涉及车辆的液压衬套(hydraulic bushing),特别涉及能够防止弹性体受损从而提高耐用性的车辆的液压衬套。
背景技术
如图1所示,车辆的悬架单元(suspension unit)包括下臂1,用于连接至车体的液压衬套10被安装在下臂1的一端上。如图2所示,常规的液压衬套10包括内管11、外管12和将内管11连接至外管12的弹性构件13。弹性构件一般由橡胶制成,且通过从车轮传递而来的外力在径向发生弹性变形,从而将传递至车体的两侧的振动减至最小。
弹性构件13通过固化接合(curing bonding)结合到内管11的外表面和外管12的内表面,其中与外管12结合的弹性构件13的部分接触与外管12结合的中环14。
弹性构件13已将液室15界定在弹性构件13与外管12之间,其中液室15内含有流体。当径向载荷被施加至液压衬套10时,包含在液室15内的流体的运动阻力产生振动阻尼力(vibration dampingforce)。
另外,弹性构件13具有向外管12径向突出的突出部16,且外管12具有面向突出部16的止动件17。作为与外管12分离的结构,止动件17可由钢或合成树脂制成。
当弹性构件13在径向发生弹性变形时,突出部16和止动件17相互接触。因此这使得液室15的截面面积的变化减至最小,从而将液压衬套10的振动阻尼特性(vibration damping characteristic)的变化减至最小。
另外,止动件17在其中界定有流路(flow path)18,包含在液室15中的流体能够通过该流路流动。当液室15的截面面积因弹性构件13的弹性变形而变化时,流路18是液室15内的流体流动的空间。流路18用于改善振动阻尼特性。
然而,在现有技术的上述液压衬套10中,当弹性构件13因外力而在径向发生弹性变形时,界定液室15的弹性构件13的突出部16与止动件17直接接触。如果突出部16长时间与止动件17反复接触,则会增加由橡胶制成的突出部16的疲劳度,从而导致损坏或破裂。该情况下,液室15受损,致使液室15内的流体泄漏。因此这降低了液压衬套10的耐用性,从而进一步缩短了其寿命。
在此背景技术部分公开的信息仅用于增强对本发明的一般背景的理解,而不应该视为承认或以任何形式暗示这些信息构成本领域技术人员已知的现有技术。
发明内容
因此,本发明鉴于在现有技术中出现的上述问题,本发明旨在提供一种车辆的液压衬套,其中,用于维持液室形状的止动件被设置在内管上,使得当弹性构件因外力而在径向发生弹性变形时,止动件不与周围的弹性构件直接接触,从而防止止动件损坏弹性构件和液室。因此可增加液压衬套的整体耐用性,从而提高产品价值。
本发明的各个方面提供一种车辆的下臂的液压衬套,包括:内管;外管;设置在上述内管与上述外管之间且将上述内管连接至上述外管的弹性构件;界定(define)在上述弹性构件中的液室,其中流体被密封在上述液室内;和从上述内管的外周朝向上述外管径向突出的止动件。上述弹性构件结合到上述止动件,使得上述弹性构件环绕上述止动件。
上述止动件可突出至液室内。上述液室可朝向上述外管开口。上述液室可包括由上述止动件分开的上液室和下液室。上述上液室和上述下液室可通过上述止动件的一端与上述外管之间的连接通道彼此连接。
上述液室可被实现为包括呈大体相同形状的两个液室。上述两个液室可大体上对称地形成在上述内管的两侧。上述两个液室可通过流体通道(fluid passage、流路)彼此连接,该流体通道周向地形成在上述弹性构件中。
根据本发明的各个方面,因为止动件被设置在内管上,所以防止了界定有液室的弹性构件的部分被止动件损坏或者破坏。这样可显著减少弹性构件的疲劳度,从而增加液压衬套的整体耐用性。
另外,通过将上液室和下液室彼此连接的连接通道和将两液室彼此连接的流体通道,响应于液室的截面面积变化,能够进一步促进(activate)流体流动,从而进一步增加液压衬套的振动阻尼特性。
本发明的方法和装置具有其它特征和优点,根据附图及后面具体实施方式这些特征和优点将变得明朗,或者说这些特征和优点在附图及后面的具体实施方式中进行了更具体的描述,附图合并与此,与具体实施方式一起用于解释本发明的特定原理。
附图说明
图1是示出具有液压衬套的下臂的透视图;
图2是示出现有技术的液压衬套的剖面透视图;
图3是示出本发明的示例性液压衬套的剖面透视图;
图4是示出图3所示的从液室中去除外管的液室的前视图;以及
图5是图4所示的液室的右侧视图。
具体实施方式
现在将具体参考本发明的各个实施例,这些实施例的实例被显示在附图中并描述如下。尽管本发明将与示例性实施例相结合进行描述,但是应当理解,本说明书并非旨在将本发明限制为那些示例性实施例。相反,本发明旨在不但覆盖这些示例性实施例,而且覆盖可以被包括在由所附权利要求所限定的本发明精神和范围之内的各种选择形式、修改形式、等同形式及其它实施方案。
参考图3至图5,为了将下臂连接至车体(副架(sub-frame)),本发明的各个实施例的车辆的液压衬套50被安装在下臂的一端,其中该下臂是车辆的悬架单元的构件。液压衬套50包括内管51、外管52和由橡胶等制成的弹性构件53。弹性构件53将内管51连接至外管52。例如,通过固化接合(curing bonding),弹性构件53结合到内管51的外表面和外管52的内表面。
另外,弹性构件53已将液室54界定在弹性构件53与外管52之间,其中液室54内含有流体。液室54朝向外管52开口,且通过外管52保持气密性。
当径向载荷施加于液压衬套50时,密封在液室54内的流体沿液室54流动。在此过程中,流体的运动阻力产生振动阻尼力,从而使传递至车体的振动减至最小。
各个实施例的液压衬套50具有止动件55,该止动件从内管51的外周向外管52径向突出。作为与内管51分离的结构,止动件55可由钢或合成树脂制成。止动件55能够根据需要与内管51形成为一体(integrally)或整体(monolithically)。
当径向载荷施加于液压衬套50,并因此使弹性构件53在朝向外管52的方向发生弹性变形时,止动件55与外管52的直接接触可导致外管52和止动件55损坏。为了防止这种情况发生,弹性构件53结合到止动件55,使得弹性构件53环绕止动件55。
当载荷被施加时,环绕止动件55的一端的弹性构件53与外管52接触。因此这使得液室54的截面面积的变化减至最小,从而使液压衬套50的振动阻尼特性的变化减至最小。
如上所述,止动件55被设置在内管51上,且界定液室54的弹性构件53的部分与止动件55结合,使得其环绕止动件55。因此,即使弹性构件53因外力而在径向发生弹性变形,所得到的结构(resultantstructure)中的止动件55也不会向界定液室54的弹性构件53转移或传递载荷。
因此,各个实施例的液压衬套50可防止弹性构件53被止动件55损坏或破坏,这样降低了弹性构件53的疲劳度。另外,能够显著增加液压衬套50的整体耐用性。
另外,每个液室54通过止动件55被分成上液室54a和下液室54b。上液室54a与下液室54b通过止动件55的一端与外管52之间的连接通道54c相互连接。
当每个液室54的截面面积因弹性构件53的弹性变形而变化时,将上液室54a连接至下液室54b的连接通道54c界定了每个液室54内的流体所流动的空间,从而增加了液压衬套50的振动阻尼特性。
另外,液室54包括形状大体相同或相似的两个液室,各液室54对称或大体对称地形成于内管51的两侧。
因为两个液室54对称或大体对称地形成,所以提供了能够进一步增加液压衬套50的振动阻尼特性的更为可靠的结构。
另外,两个液室54通过流体通道(fluid path)56彼此连接,其中该流体通道56周向地形成于弹性构件53内。当液室54的截面面积因弹性构件53的弹性变形而减小时,流体通道56界定流体从一个液室54流至相反侧(opposite)的液室54的空间。由此改善了液压衬套50的振动阻尼特性。
如上所述,在各个实施例的液压衬套50中,止动件55被设置在内管51上,界定液室54的弹性构件53的部分环绕止动件55。因此,即使弹性构件53因外力在径向发生弹性变形时,止动件55也不会向界定液室54的弹性构件53转移或传递载荷。
因此,各个实施例的液压衬套50具有以下优点。能够防止弹性构件53被止动件55损坏或破坏,从而显著减少弹性构件53的疲劳度。此外,能够显著增加液压衬套50的整体耐用性,从而提高商业价值。
另外,在各个实施例的液压衬套50中,密封流体的每个液室54通过止动件55被分成上液室54a和下液室54b,且上液室54a与下液室54b通过连接通道54c彼此连接。所以能够通过连接通道54c促进流体在液室54内流动,从而进一步改善液压衬套50的振动阻尼特性。
此外,在各个实施例的液压衬套50中,对称地形成有密封流体的两个液室54,从而提供了能够进一步增加液压衬套50的振动阻尼特性的更为可靠的结构。
另外,当液室54的截面面积发生变化时,能够使流体通过流动通道56沿液室54流动,其中该流动通道56将两个液室54彼此连接。
为了方便解释和在所附权利要求中的准确限定,参考如附图所示的示例性实施例的特征的位置,术语“上”或“下”、“内”或“外”等用于描述这种示例性实施例的特征。
前述对本发明的具体示例性实施例的描述是为了例证和说明的目的。这些描述并非想穷尽本发明,或者将本发明限定为所公开的精确形式,并且很显然,根据上述教导,可以作出很多改变或变化。对示例性实施例进行选择和说明的目的在于解释本发明的特定原理及其实际应用,从而使得本领域的其他技术人员实现并利用本发明的各种不同的示例性实施例以及各种不同的选择和改变。本发明的范围意在由所附的权利要求及其等同形式所限定。

Claims (6)

1.一种车辆的下臂的液压衬套,其特征在于,包括:
内管;
外管;
设置在所述内管与所述外管之间且将所述内管连接至所述外管的弹性构件;
界定在所述弹性构件中的液室,其中流体被密封在所述液室内;和
从所述内管的外周朝向所述外管径向突出的止动件,
其中所述弹性构件结合到所述止动件,使得所述弹性构件环绕所述止动件。
2.根据权利要求1所述的液压衬套,其特征在于:
所述止动件突出至所述液室内。
3.根据权利要求1所述的液压衬套,其特征在于:
所述液室朝向所述外管开口。
4.根据权利要求1所述的液压衬套,其特征在于:
所述液室包括被所述止动件分开的上液室和下液室,其中所述上液室和所述下液室通过所述止动件的一端与所述外管之间的连接通道彼此连接。
5.根据权利要求1所述的液压衬套,其特征在于:
所述液室包括呈大体相同形状的两个液室,其中所述两个液室大体上对称地形成在所述内管的两侧。
6.根据权利要求5所述的液压衬套,其特征在于:
所述两个液室通过周向地形成在所述弹性构件中的流体通道彼此连接。
CN201310752148.6A 2013-10-11 2013-12-31 车辆的液压衬套 Pending CN104565067A (zh)

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CN112555314A (zh) * 2020-11-25 2021-03-26 宁波拓普集团股份有限公司 一种双胶料衬套

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NO343819B1 (en) * 2017-04-07 2019-06-11 Momentum Tech As Method for vibration damping of and vibration damper assembly for semi-submerged or submerged elongated structure
JP6967429B2 (ja) * 2017-11-08 2021-11-17 株式会社ブリヂストン 防振装置

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CN110360265B (zh) * 2019-07-25 2020-12-08 上汽通用汽车有限公司 一种液压衬套
CN110978933A (zh) * 2019-12-10 2020-04-10 阿尔特汽车技术股份有限公司 一种液压衬套后扭力梁总成
CN112555314A (zh) * 2020-11-25 2021-03-26 宁波拓普集团股份有限公司 一种双胶料衬套

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