CN113464599A - 一种液压悬置内的流道体结构 - Google Patents

一种液压悬置内的流道体结构 Download PDF

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CN113464599A
CN113464599A CN202110754978.7A CN202110754978A CN113464599A CN 113464599 A CN113464599 A CN 113464599A CN 202110754978 A CN202110754978 A CN 202110754978A CN 113464599 A CN113464599 A CN 113464599A
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CN113464599B (zh
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朱林
朱宇航
韦康然
朱家兵
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Anhui Yumway Automotive Components Co ltd
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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
    • F16F13/102—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 flexible walls of equilibration chambers; decoupling or self-tuning means
    • 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
    • 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
    • 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
    • F16F13/26—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 characterised by adjusting or regulating devices responsive to exterior conditions
    • F16F13/264—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 characterised by adjusting or regulating devices responsive to exterior conditions comprising means for acting dynamically on the walls bounding a working chamber

Abstract

本发明公开了一种液压悬置内的流道体结构，包括流道体本体，流道体本体内设有解耦通道、惯性通道，解耦通道上、下端分别设为缩径口，解耦通道内设有解耦盘，解耦盘包括中心圆片以及从内向外依次同心环套于中心圆片外的多圈圈片结构，相邻圈片之间、中心圆片与最内侧圈片之间分别固定连接有弹性膜片。本发明在高幅振动时，能够实现内部压力的快速平衡，进一步提高了阻尼减振效果。

Description

一种液压悬置内的流道体结构
技术领域
本发明涉及液压悬置领域，具体是一种液压悬置内的流道体结构。
背景技术
汽车液压悬置用于支撑发动机并吸收发动机的低、高幅振动。现有技术液压悬置包括外壳、橡胶主簧，外壳内有流道体，由流道体将外壳内隔分为上下两部分，流道体内设有解耦通道、惯性流道，其中惯性流道一端设于流道体顶部、另一端设于流道体底部，以连通外壳内上、下两部分，解耦通道竖直贯通流道体以连通外壳内上、下两部分，解耦盘设于解耦通道内，解耦盘边缘与解耦通道内壁之间有空隙。低频大振幅激励时，解耦盘处于上极点或下极点(即解耦通道贯通处)使解耦通道封闭，此时外壳内的流体仅能通过惯性通道在外壳内上下部分流动；而在高频小振幅下，惯性通道自锁，解耦盘将在小位移范围内上下运动，上下液室的流体一方面可以通过解耦盘的上下运动而达到压力平衡，另一方面上下液室的流体也可以通过解耦盘的外沿流通。现有技术解耦盘一般是刚性体，在高幅振动中，当解耦盘运动至极点时，需要封住解耦通道，使流体通过惯性通道流动以实现阻尼减振，而解耦盘本身无法上下运动对液压起平衡作用，存在在高幅振动时无法快速恢复液压平衡的问题。
发明内容
本发明的目的是提供一种液压悬置内的流道体结构，以解决现有技术液压悬置存在的高幅振动时无法快速恢复液压平衡的问题。
为了达到上述目的，本发明所采用的技术方案为：
本发明中，解耦通道上、下端分别设为缩径口，解耦通道内的解耦盘包括中心圆片以及从内向外依次同心环套于中心圆片外的多圈圈片结构，相邻圈片之间、中心圆片与最内侧圈片之间分别布满并固定连接有弹性膜片，以取代传统的刚性解耦盘结构。当解耦盘运动至极点位置时，由解耦盘的最外侧圈片与对应极点位置解耦通道的缩径口口壁抵顶接触。
本发明这种结构的解耦盘在低幅振动时，由于低幅振动时外壳内空间变化幅度小，因此外壳内液体压力变化小，解耦盘上下压力差值相应较小，这个压力差值不足以使弹性膜片变形或只能使弹性膜片微小变形，在此情况下解耦盘视为刚体，实现上下方向快速运动达到平衡压力的效果。
当高幅振动时，外壳内空间变化幅度大，因此外壳内液体压力变化大，解耦盘上下压力差值相应较大，这个压力差值使初始时悬浮于解耦通道内的解耦盘首先整体视为刚体运动至极点位置，此时解耦通道被封闭，随着压力差值继续增大，使解耦盘中除最外侧圈片外的其余圈片、中心圆片向液压较小的一侧运动，进而使弹性膜片变形伸长，并且伸长方向是向液压较小的方向，流体从液压较大的一侧通过惯性通道一个方向流向液压较小的一侧，由此，相当于解耦盘在封住解耦通道的同时部分向下运动。当液压较小侧和液压较大侧相互转换但没有达到完全转换时，首先是令伸长的弹性膜片复位，此时除了最外圈圈片外，其余圈片和中心圆片向液压减小的一侧运动，而解耦盘本身仍然是封住解耦通道的，通过中心圆片和圈片的运动以促使高幅振动时液压快速平衡。当弹性膜片完全复位后，解耦盘整体再在转换后液压作用下重复上述过程。
可见，本发明中，在高幅振动时，通过解耦盘本身弹性膜片，能够促使液压快速平衡，并且不会使解耦通道打开，流体仍然可通过惯性流道流动。
本发明中，为了确保解耦盘上下运动平稳，解耦盘中最外圈圈片通过通孔滑动装配于解耦通道内上、下部之间的导杆。并且为了减小解耦盘解耦通道上、下端口壁之间碰撞产生的噪音，在解耦通道上端缩径口口壁下表面、下端缩径口口壁上表面分别设有环形橡胶圈用于缓冲。
与现有技术相比，本发明在高幅振动时，能够实现内部压力的快速平衡，进一步提高了阻尼减振效果。
附图说明
图1是本发明结构剖视图。
图2是本发明解耦盘运动至下极点位置时结构正剖视图。
图3是本发明解耦盘伸长时结构正剖视图。
具体实施方式
下面结合附图和实施例对本发明进一步说明。
本发明所述的实施例仅仅是对本发明的优选实施方式进行的描述，并非对本发明构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中工程技术人员对本发明的技术方案作出的各种变型和改进，均应落入本发明的保护范围，本发明请求保护的技术内容，已经全部记载在权利要求书中。
如图1所示，本发明一种液压悬置内的流道体结构，包括流道体本体1，流道体本体1内中心设有解耦通道2，解耦通道2竖直贯通流道体本体1，且解耦通道2上、下端分别设为缩径口，流道体本体1内还设有惯性通道3，惯性通道 3一端分别设于流道体本体1上表面、另一端设于流道体本体1下表面。
解耦通道2上端缩径口口壁下表面、下端缩径口口壁上表面分别设有环形橡胶圈4，环形橡胶圈4与解耦通道2同轴，并且解耦通道2上端缩径口口壁下表面、下端缩径口口壁上表面之间连接有多道导杆5，各道导杆5分别穿过环形橡胶圈4。
解耦通道2内设有水平的解耦盘，解耦盘包括中心圆片6以及从内向外依次同心环套于中心圆片6外的多圈圈片7结构，相邻圈片7之间、中心圆片6与最内侧圈片之间分别布满并固定连接有弹性膜片8。各个圈片7、中心圆片6材料相同，均选用能够悬浮于外壳1内液压介质的材料。各圈圈片7、中心圆片6高度相同，从外向内方向上各圈圈片7的径向宽度逐渐减小，以使各圈圈片7的质量保持相同，同时中心圆片6与圈片7的质量相同。各个弹性膜片8的高度、径向宽度均相同。
本发明以解耦盘向下运动为例进行说明。如图2所示，高幅振动中，当外壳 1内上部空间被逐渐压缩时，外壳1内上部空间液压逐渐增大，解耦盘整体视为刚体向下运动，直至解耦盘封住解耦通道2下端的缩径口，此时解耦盘的最外侧圈片抵顶接触解耦通道2下端缩径口口壁上表面。由于解耦通道2被封住，外壳 1内流动介质只能从外壳1内上部空间通过惯性通道3流向外壳1内下部空间。
如图3所示，外壳1内上部空间液压继续增大，此时除最外侧圈片外，其余圈片7、中心圆片6向下运动，弹性膜片8被向下拉伸，此时解耦通道2仍然封闭，流动介质仍然只能从外壳1内上部空间通过惯性通道3流向外壳1内下部空间。
同理，当外壳1内上部空间开始扩大时，外壳1内上部空间液压逐渐减小，此时解耦盘的弹性膜片8首先复位，中心圆片6、其余圈片7向上运动，直至弹性膜片8完全复位。
可见本发明中，在高幅振动时，解耦盘本身能够封住解耦通道2，同时解耦盘中的中心圆片6、其余圈片7能够上下运动，以促使外壳1内部压力迅速平衡，从而提高阻尼减振效果。

Claims (5)

1.一种液压悬置内的流道体结构，包括流道体本体，流道体本体内设有解耦通道、惯性通道，其中惯性通道两端分别设于流道体本体上、下表面，解耦通道竖直贯通流道体本体，且解耦通道上、下端分别设为缩径口，解耦通道内设有解耦盘，其特征在于：所述解耦盘包括中心圆片以及从内向外依次同心环套于中心圆片外的多圈圈片结构，相邻圈片之间、中心圆片与最内侧圈片之间分别布满并固定连接有弹性膜片。
2.根据权利要求1所述的一种液压悬置内的流道体结构，其特征在于：所述解耦盘中，各圈圈片、中心圆片高度相同，各圈圈片、中心圆片的质量相同。
3.根据权利要求1所述的一种液压悬置内的流道体结构，其特征在于：所述解耦盘中，各个弹性膜片的高度、径向宽度均相同。
4.根据权利要求1所述的一种液压悬置内的流道体结构，其特征在于：所述解耦通道上、下端缩径口口壁之间连接有导杆，所述解耦盘中最外圈圈片通过通孔滑动装配于导杆。
5.根据权利要求1所述的一种液压悬置内的流道体结构，其特征在于：所述解耦通道上端缩径口口壁下表面、下端缩径口口壁上表面分别设有环形橡胶圈。
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