CN109720186B - 用于车辆的液压支座 - 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units 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
- F16F13/06—Units 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
- F16F13/08—Units 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
- F16F13/10—Units 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 the wall being at least in part formed by a flexible membrane or the like
- F16F13/105—Units 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 the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
- F16F13/107—Passage design between working chambers
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units 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
- F16F13/06—Units 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
- F16F13/08—Units 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
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1463—Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/12—Arrangement of engine supports
- B60K5/1208—Resilient supports
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units 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
- F16F13/06—Units 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
- F16F13/08—Units 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
- F16F13/10—Units 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 the wall being at least in part formed by a flexible membrane or the like
- F16F13/101—Units 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 the wall being at least in part formed by a flexible membrane or the like characterised by buffering features or stoppers
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units 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
- F16F13/06—Units 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
- F16F13/08—Units 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
- F16F13/10—Units 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 the wall being at least in part formed by a flexible membrane or the like
- F16F13/105—Units 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 the wall being at least in part formed by a flexible membrane or the like characterised by features of partitions between two working chambers
- F16F13/106—Design of constituent elastomeric parts, e.g. decoupling valve elements, or of immediate abutments therefor, e.g. cages
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/09—Reducing noise
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
一种用于车辆的液压支座包括:芯套,其联接到螺栓;主橡胶,其形成在芯套的外表面上;孔口部,其联接到主橡胶的下部,以将上部流体室和下部流体室分隔开,孔口部包括下板和上板;以及膜,其被安装在下板和上板之间。流体路径被形成在下板的上表面部分上,下部入口和出口端被形成在流体路径的预定位置上,与流体路径连通的上部入口和出口端被形成在上板上,凹槽部分和固定端沿着上板的圆周重复且均匀地形成,以覆盖下板上的流体路径并且与流体路径联接,并且膜通过凹槽部分暴露。
Description
技术领域
本公开涉及用于一种车辆的液压支座(mounts),并且更特别地,涉及一种能够消除敲击噪声的用于车辆的液压支座。
背景技术
车辆传动系通常包括发动机和变速器。传动系可以通过发动机支座、变速器支座等被安装在车辆的发动机室中,以减少车身中的振动和噪声。例如,流体密封型支座或液压支座被广泛地用于密封绝缘体(例如,橡胶)的下部上的流体,并且可以同时减少高频范围振动和低频范围振动。
在本文中,将参照以下的附图1和2描述传统的液压支座。
如图1和图2所示,附图标记10表示与发动机联接的螺栓。螺栓10与芯套(corebush)12联接;并且芯套12的外径部分通过固化粘合等的方法形成有主橡胶14。
进一步地,主橡胶14的下部定位有孔口部20,其中上板16和下板18彼此联接;并且孔口部20的下部安装有通过使用螺栓等作为连接件连接到车身的下部橡胶膜28。
在该情况下,下板18形成有流体路径18-1,该流体路径18-1是在其上表面部分上具有凹槽结构的第一孔口,并且同时被制造为具有形成在流体路径18-1的预定位置上的下部入口和出口端的环形形状;并且上板16由具有上部入口和出口端16-1的环形板体制造,以覆盖下板18的流体路径18-1并且联接到流体路径18-1。
孔口部20的中心部分安装有划分上部流体室22和下部流体室24的橡胶材料的膜26。具体地,膜26被定位在孔口部20的中央开口部分上,同时容纳在阶梯部分18-3中,使得膜26的外径部分形成在下板18的内径部分上,并且然后成为由上板16的内圆周端部覆盖的状态。
在该情况下,作为允许在上部流体室22和下部流体室24之间流体移动的第二孔口的喷嘴部分30被形成在膜26的外径部分与上板16的内径部分和下板18的内径部分之间。因此,当大位移振动(例如,在崎岖不平的道路上行驶)被输入到以上述方式配置的液压支座时,如附图2的右侧所示,主橡胶14被压缩,并且同时,喷嘴部分30通过按压膜26而变成闭合状态;同时,上部流体室22内的流体通过形成在孔口部20的上板16上的上部入口和出口端16-1进入下板18的流体路径18-1中,并且然后通过形成在流体路径的预定位置上的下部入口和出口端18-2被填充到下部流体室24中时,实现吸收大位移振动的高减震。
另一方面,当小位移振动(例如,在平滑的道路上行驶)被输入到液压支座时,如附图2的左侧所示,上部流体室22的流体可以吸收小位移振动,同时通过喷嘴部分30朝向下部流体腔室24侧移动,从而获得改善噪声、振动和声振粗糙度(NVH)的效果。
然而,如附图3所示,当在液压支座上发生激励(excitation)时,膜26被激励,同时每个流体室的内部压力变化,并且由于喷嘴部分30的撞击而发生噪声。同时,根据膜的激励,膜26反复地经受拉伸和压缩。
即,当膜26被激励时,如图4的曲线所示,存在由于重复的压缩和拉伸而发生位移的问题,并且当压缩被转换成拉伸或者拉伸被转换成压缩时,膜与喷嘴部分30的表面碰撞,从而引起破坏性的敲击噪声。
由于在本背景技术部分中公开的以上信息仅用于增强对本公开的背景技术的理解,因此其可以包含不形成现有技术的信息。
发明内容
为了解决以上问题提出本公开。本公开的目的是提供一种用于车辆的液压支座,其能够增加朝向上部流体室暴露的膜的暴露区域。公开的液压支座改善了作为线接触结构的膜与喷嘴部分之间的接触,从而在保持双孔口功能和最优减震性能的同时,消除破坏性的敲击噪声。
根据本公开的实施例,用于车辆的液压支座包括:芯套,其联接到螺栓;主橡胶,其形成在芯套的外表面上;孔口部,其联接到主橡胶的下部,以划分上部流体室和下部流体室,孔口部包括下板和上板;以及膜,其被安装在下板和上板之间。流体路径被形成在下板的上表面部分上,下部入口和出口端被形成在流体路径的预定位置上,与流体路径连通的上部入口和出口端被形成在上板上,凹槽部分和固定端沿着上板的圆周重复且均匀地形成,以覆盖下板上的流体路径并且联接到流体路径,并且膜通过凹槽部分暴露。
总共八个凹槽部分可以沿着上板的圆周以45°的间隔形成。
膜可以通过凹槽部分朝向上部流体室侧暴露。
膜的外圆周的上表面可以形成有用于与上板的固定端的下表面线接触的阶梯型阶梯部分;并且膜的外圆周的下表面也可以形成有用于与下板线接触的阶梯型阶梯部分。
上板的固定端的下表面可以形成为用于与膜线接触的倾斜表面。
下板的内圆周可以形成为与膜线接触的倾斜表面。
下板的内圆周可以与其中形成有流体通孔的膜止动件(membrane stopper)一体地形成。
因此,本公开提供至少以下效果。
首先,可以在上板的内径部分上形成凹槽部分,以增加朝向上流体室侧暴露的膜的区域。因此,在膜上工作的流体的工作区域增加,从而吸收车辆等的空转振动,同时膜消除流体的激励。
其次,即使膜的暴露区域增加,也可以使用形成在上板的凹槽部分之间的固定端来容易地固定膜。
再次,即使由于大位移振动(例如,由于在颠簸的道路上驾驶车辆)而引起的流体压力在膜上工作,由于膜的阶梯型阶梯部分与上板和下板线接触,因此可以最小化在表面接触时敲击噪声的发生。
下面讨论本公开的其它方面和实施例。
附图说明
现在将参照附图中所示的某些实施例来详细描述本公开的以上和其它特征,附图在下文中仅以说明的方式给出并且因此不限制本公开,并且其中:
图1和图2是说明传统的液压支座的视图;
图3和图4是说明传统的液压支座的问题的视图;
图5是说明根据本公开的实施例的液压支座的孔口部的局部截面透视图;
图6是说明根据本公开的实施例的液压支座的孔口部的平面图;
图7是说明根据本公开的实施例的液压支座的截面图;
图8是说明根据本公开的实施例的液压支座的膜的截面透视图;
图9是沿图6的线A-A截取的截面图;
图10是沿图6的线B-B截取的截面图;
图11是说明根据本公开的实施例的液压支座的膜的暴露区域与传统的液压支座相比增加的比较图;
图12是说明相对于根据本公开的液压支座的膜在小位移激励时的操作状态的截面图;以及
图13是说明相对于根据本公开的液压支座的膜在大位移激励时的操作状态的截面图。
应当理解的是,附图不一定按比例绘制,其呈现出说明本公开的基本原理的各种特征的稍微简化的表示。包括例如具体尺寸、方位、位置和形状的如本文公开的本公开的具体设计特征将由特定的预期应用和使用环境来部分地确定。在整个附图的若干附图中,附图标记表示本公开的相同或等同的部分。
具体实施方式
在下文中,将详细参照本公开的各个实施例,其示例在附图中说明并在下面描述。虽然将结合某些实施例描述本公开,但是将理解的是,本说明书并不旨在将本公开限于那些实施例。相反,本公开旨在不仅涵盖公开的实施例,而且涵盖可以包括在由权利要求限定的本公开的精神和范围内的各种可选方案、变型、等同物和其它实施例。
在整个说明书中,将理解的是,当部件被称为“包括”任何部件时,其不排除其他部件,但是可以进一步包括其他部件,除非另有说明。如本文使用的,单数形式“一”、“一个”和“该”也旨在包括复数形式,除非上下文另有明确指示。如本文使用的,术语“和/或”包括一个或多个相关所列项目的任何和所有组合。
应当理解的是,如本文所使用的术语“车辆”或“车辆的”或其它类似术语通常包括机动车辆,诸如包括运动型多用途车(SUV)、公共汽车、卡车、各种商用车辆的乘用车,包括各种小船和大船的船舶,飞机等,并且包括混合动力车辆、电动车辆、插电式混合动力电动车辆、氢动力车辆和其它替代燃料车辆(例如,源自除石油以外的资源的燃料)。如本文所提及的,混合动力车辆是具有两个或更多个动力源的车辆,例如,汽油动力车辆和电动车辆。
在下文中,将参照附图详细地描述本公开的实施例。
如图7所示,根据本公开的实施例的液压支座被配置成包括:芯套12,其与螺栓10联接;主橡胶,其通过固化粘合等方法形成在芯套12的外径表面上;孔口部20,其联接到主橡胶14的下部以划分上部流体室22和下部流体室24;以及下部橡胶膜28,其使用螺栓等作为连接件连接到车身。螺栓10与芯套12联接;并且芯套12的外径部分通过固化粘合等的方法形成有主橡胶14。
进一步地,主橡胶14的下部定位有孔口部20,使得上板16和下板18彼此联接;并且孔口部20的下部安装有使用螺栓等作为连接件连接到车身的下部橡胶膜28。
在该情况下,下板18形成有流体路径18-1,该流体路径18-1是在其上表面部分上具有凹槽结构的第一孔,并且同时被制造为环形形状,使得下部入口和出口端18-2被形成在流体路径18-1的预定位置上;并且上板16由具有上部入口和出口端16-1的环形板体制造,以覆盖下板18的流体路径18-1并且联接到流体路径18-1。
特别地,孔口部20的中心部分安装有大致地划分上部流体室22和下部流体室24的橡胶材料的膜26。即,膜26被插入在上板16和下板18之间以大致地划分上部流体室22和下部流体室24。
在该情况下,如图10所示,膜26的外径部分与上板16的内径部分和下板18的内径部分之间的间隙由喷嘴部分30形成,该喷嘴部分30是允许流体在上部流体室22和下部流体室24之间移动的第二孔口。
特别地,根据本公开,如图5至图7所示,孔口部20的上板16具有沿着其内径表面上的圆周重复且均匀地形成的凹槽部分16-2和固定端16-3。
在该情况下,用于增加膜26的上部暴露区域的凹槽部16-2朝向上板16的外径方向凹陷地形成;并且用于固定膜26的固定端16-3执行可用于接触膜26的边缘上表面的锁定功能。
因此,如附图11的比较图所示,膜26的上部暴露区域,即,朝向上部流体室22暴露的区域,变成与包含在传统流体悬架中的膜相比的增加的状态。
优选地,总共八个凹槽部分16-2沿着上板16的内径表面上的圆周以45°间隔形成。因此,膜的上部暴露区域增加,并且同时,固定端16-3的锁定区域被用于固定膜26。
同时,如图8所示,膜26的外圆周的上表面形成有用于与上板16的固定端16-3的下表面线接触的阶梯型阶梯部分26-1;并且用于与下板18线接触的阶梯型阶梯部分26-1被形成在膜26的外圆周的下表面上。
因此,膜26的外圆周的厚度通过形成在其上表面和下表面上的阶梯型阶梯部分26-1朝着外径方向逐渐减小。
进一步地,如图9和图10所示,由于膜26的外圆周的厚度逐渐减小,从而形成为阶梯型阶梯部分26-1,因此用于与阶梯型阶梯部分26-1线接触的上板16的固定端16-3的下表面形成为倾斜表面16-4,并且同时,下板18的内圆周也形成为倾斜。
同时,由于下板18的内圆周与形成有流体通孔32的膜止动件34一体地形成,因此在膜26由于流体压力而向下移动的情况下,膜止动件34用作防止膜26逸出。
在本文中,以下将描述具有以上配置的根据本公开实施例的液压支座的操作流程。
如图12所示,当(例如,由于空转振动或者在平滑的道路上驾驶车辆而引起的)小位移振动被输入到液压支座时,上部流体室22内的流体在膜26上工作,并且同时,膜26执行向下移动的变形,从而吸收小位移振动。
当然,在稍微大于小位移振动的振动被输入到液压悬架的情况下,上部流体室22内的流体可以吸收振动,同时通过膜26的外径部分与上板16的内径部分和下板18的内径部分之间的喷嘴部分30移动到下部流体室24,从而获得噪声、振动和声振粗糙度(NVH)的改善的效果。
如图13所示,在大位移振动(例如,在颠簸的道路上驾驶车辆)被输入到液压支座的情况下,上部流体室22内的流体通过上板16的上部入口和出口端16-1进入下板18的流体路径18-1中并在下板18的流体路径18-1中循环,并且然后实现吸收大位移振动的高减震,同时通过下部入口和出口端18-2,并且通过下板18的下部入口和出口端18-2被填充到下部流体室24中。
在该情况下,当大位移振动被输入到液压悬架时,上部流体室22内的流体可以通过较大压力激励膜26,从而,当膜26的外圆周与喷嘴部分30的表面进行表面接触(参照图3)时,由于撞击而通常发生敲击噪声。
然而,当上部流体室22内的流体通过大压力激励膜26时,形成在膜26的外圆周的上表面和下表面上的阶梯型阶梯部分26-1的倾斜的边缘部分与上板16的倾斜表面16-4或下板18的倾斜表面线接触;并且在该情况下,接触碰撞可以被线接触分布和吸收,从而最小化敲击噪声。
已经参照本公开的某些实施例详细描述本发明。然而,本领域技术人员将理解,在不脱离本发明的原理和精神的情况下,可以在这些实施例中进行改变,本公开的范围由权利要求及其等同物限定。
Claims (6)
1.一种用于车辆的液压支座,所述液压支座包括:
芯套,所述芯套联接到螺栓;
主橡胶,所述主橡胶形成在所述芯套的外表面上;
孔口部,所述孔口部联接到所述主橡胶的下部,以划分上部流体室和下部流体室,所述孔口部包括下板和上板;以及
膜,所述膜被安装在所述下板和所述上板之间,其中
流体路径形成在所述下板的上表面部分上,
下部入口和出口端形成在所述流体路径的预定位置上,
与所述流体路径连通的上部入口和出口端形成在所述上板上,
凹槽部分和固定端沿着所述上板的圆周重复且均匀地形成在所述上板的内周表面上,以覆盖所述下板上的所述流体路径并且联接到所述下板上的所述流体路径,以及
所述膜通过所述凹槽部分暴露,
其中所述上板具有环形板体,从而所述膜被朝向所述上部流体室一侧暴露,
其中用于增加所述膜的上部暴露面积的所述凹槽部分朝向所述上板的外径方向凹陷地形成。
2.根据权利要求1所述的用于车辆的液压支座,
其中总共八个凹槽部分沿着所述上板的圆周以45°的间隔形成。
3.根据权利要求1所述的用于车辆的液压支座,
其中所述膜的外圆周的上表面形成有用于与所述上板的所述固定端的下表面线接触的阶梯型阶梯部分;并且所述膜的外圆周的下表面也形成有用于与所述下板线接触的阶梯型阶梯部分。
4.根据权利要求3所述的用于车辆的液压支座,
其中所述上板的所述固定端的下表面形成为用于与所述膜线接触的倾斜表面。
5.根据权利要求3所述的用于车辆的液压支座,
其中所述下板的内圆周形成为与所述膜线接触的倾斜表面。
6.根据权利要求1所述的用于车辆的液压支座,
其中所述下板的内圆周与其中形成有流体通孔的膜止动件一体地形成。
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