CN107366710A - 一种两级隔振的液压悬置 - Google Patents
一种两级隔振的液压悬置 Download PDFInfo
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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
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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
- F16F13/10—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
- F16F13/108—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 plastics springs, e.g. attachment arrangements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
本发明公开了一种两级隔振的液压悬置,包括内芯子、限位罩、防撞罩、流道组件和连接螺栓,内芯子的下部设有橡胶主簧,橡胶主簧下部的外侧壁上设有主簧外骨架,限位罩的下部过盈压装在主簧外骨架的外侧壁上,限位罩的顶部压装在橡胶主簧的顶部,防撞罩盖在限位罩的顶部,橡胶主簧的底部设有隔振座,隔振座与橡胶主簧之间形成有封闭的液腔,液腔通过流道组件分隔成上液腔和下液腔,连接螺栓的下部设于内芯子上部的螺纹孔内,螺纹孔通过灌液孔与上液腔连通,灌液孔通过钢珠形成过盈密封。该液压悬置通过橡胶主簧和流道组件对激振实施第一级隔振,衰减后再通过隔振座上的隔振簧实施第二级衰减,使传递到车架上的振动能量降至最小。
Description
技术领域
本发明属于汽车零部件技术领域,涉及一种液压悬置,尤其是涉及一种用于发动机上具有两级隔振的液压悬置。
背景技术
如今,汽车的噪声与振动的控制一直是困扰着人们的难题,严重影响着车内乘坐的舒适性。为此,人们从激振源上着手实施隔离控制,如采用橡胶悬置或液压悬置,纯橡胶悬置的成本较低,应用较为广泛,但由于其阻尼较低,隔振性能较差;普通的液压悬置采用惯性通道解耦膜的形式,在低频大振幅时可以产生较大的阻尼,在高频时由于解耦膜的作用,可以一定程度上缓解高频动态硬化的现象,故而多将其作为右悬置,应用于发动机侧来隔离主振源。
目前几乎所有的圆柱形液压悬置皆采用橡胶主簧、流道及皮碗组合的结构形式,仅橡胶主簧作为一级隔振,因此传递到车架上的振动能量依然较大,若对所传递的振动能量进一步衰减,则悬置的隔振性能将更加优越。
发明内容
本发明所要解决的技术问题是提供一种结构简单,加工难度和成本较低,且具有两级隔振的液压悬置。
为解决上述技术问题,本发明采用的技术方案是:
一种两级隔振的液压悬置,包括内芯子、限位罩、防撞罩、流道组件和连接螺栓,内芯子的下部设有橡胶主簧,橡胶主簧下部的外侧壁上设有主簧外骨架,限位罩的下部过盈压装在主簧外骨架的外侧壁上,限位罩的顶部压装在橡胶主簧的顶部,并与内芯子的肩部之间相隔一定的限位距离,防撞罩盖在限位罩的顶部,橡胶主簧的底部设有隔振座,隔振座与橡胶主簧之间形成有封闭的液腔,液腔通过流道组件分隔成上液腔和下液腔,流道组件固定在隔振座的顶部与橡胶主簧之间,连接螺栓的下部设于内芯子上部的螺纹孔内,螺纹孔通过灌液孔与上液腔连通,灌液孔通过钢珠形成过盈密封。
所述流道组件包括流道本体和解耦膜,解耦膜置于流道本体中央的容腔内,容腔的底部均匀设有若干下通液孔,位于容腔***的流道本体上设有环形流道,环形流道通过出液口与下液腔连通,位于环形流道***的流道本体上设有多个定位销,流道本体的顶部设有流道盖板,流道盖板上设有与下通液孔对应的上通液孔、与出液口对应的进液口以及与定位销配合的定位孔。
所述流道本体与流道盖板为PA66塑料或铝合金材质。
所述隔振座包括上骨架和下骨架,下骨架的外侧壁与上骨架之间设有隔振簧,下骨架的内侧壁之间设有皮碗,上骨架与主簧外骨架铆接固定。
所述下骨架上设有多个安装孔。
所述隔振簧的底部设有限位撞块,限位撞块与隔振簧一体成型。
所述上骨架、下骨架、隔振簧与皮碗通过橡胶硫化为一体,且上骨架和下骨架均为冲压件。
所述内芯子、橡胶主簧与主簧外骨架通过橡胶硫化为一体,且主簧外骨架和限位罩均为冲压件。
本发明的优点是:本发明的液压悬置通过橡胶主簧和流道组件对激振实施第一级隔振,衰减后再通过隔振座上的隔振簧实施第二级衰减,使得传递到车架上的振动能量降至最小,且主要采用冲压和硫化工艺,结构简单,在保证强度的同时极大地降低了加工难度和成本。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细描述。
图1是本发明的结构示意图;
图2是本发明中流道盖板的结构示意图;
图3是本发明中流道本体的结构示意图;
图4是本发明中隔振座的结构示意图。
其中,1、内芯子,11、连接螺栓,12、灌液孔,13、钢珠,2、防撞罩,3、限位罩,4、橡胶主簧,41、主簧外骨架,5、流道组件,51、流道盖板,511、进液口,512、上通液孔,513、定位孔,52、流道本体,521、出液口,522、环形流道,523、下通液孔,524、定位销,53、解耦膜,6、上液腔,61、下液腔,7、隔振座,71、上骨架,72、下骨架,721、安装孔,73、隔振簧,74、皮碗。
具体实施方式:
如图1所示,一种两级隔振的液压悬置,包括内芯子1、限位罩3、防撞罩2、流道组件5和连接螺栓11,内芯子1的下部设有橡胶主簧4,橡胶主簧4下部的外侧壁上设有主簧外骨架41,限位罩3的下部过盈压装在主簧外骨架41的外侧壁上,限位罩3的顶部压装在橡胶主簧4的顶部,并与内芯子1的肩部之间相隔一定的限位距离,防撞罩2盖在限位罩3的顶部,橡胶主簧4的底部设有隔振座7,隔振座7与橡胶主簧4之间形成有封闭的液腔,液腔通过流道组件5分隔成上液腔6和下液腔61,流道组件5固定在隔振座7的顶部与橡胶主簧4之间,连接螺栓11的下部设于内芯子1上部的螺纹孔内,其上部用于装配与发动机连接的悬置支臂,同时防撞罩3能够防止悬置支臂向下运动时撞击限位罩3,并形成一定的限位距离,螺纹孔通过灌液孔12与上液腔6连通,灌液孔12通过钢珠13形成过盈密封。
结合图2和图3所示,流道组件5包括流道本体52和解耦膜53,解耦膜53置于流道本体52中央的容腔内,容腔的底部均匀设有若干下通液孔523,位于容腔***的流道本体52上设有环形流道522,环形流道522通过出液口521与下液腔61连通,位于环形流道522***的流道本体52上设有多个定位销524,流道本体52的顶部设有流道盖板51,流道盖板51上设有与下通液孔523对应的上通液孔512、与出液口521对应的进液口511以及与定位销524配合的定位孔513,通过出液口521与上液腔6连通,流道本体52和流道盖板51均为PA66塑料或铝合金材质。
结合图4所示,隔振座7包括上骨架71和下骨架72,下骨架72的外侧壁与上骨架71之间设有隔振簧73,隔振簧73能够对激振进行有效衰减,下骨架72的内侧壁之间设有皮碗74,通过皮碗74确保液腔的密封性,上骨架71与主簧外骨架41铆接固定,将流道组件5夹在橡胶主簧4与隔振座7之间;下骨架72上设有多个安装孔721,通过安装孔721将该液压悬置安装在车架上。
此外,隔振簧73的底部设有限位撞块,限位撞块与隔振簧73一体成型,当橡胶主簧4承压向下运动时,限位撞块可以保证上骨架71与下骨架72之间的限位距离,达到进一步的隔离隔离冲击振动效果。
上骨架71、下骨架72、隔振簧73与皮碗74通过橡胶硫化为一体,且上骨架71和下骨架72均为冲压件,也可以为铸造件;内芯子1、橡胶主簧4与主簧外骨架41通过橡胶硫化为一体,且主簧外骨架41和限位罩3均为冲压件,也可以为铸造件。
本发明液压悬置的装配过程为:将流道组件5装入橡胶主簧4内,并将主簧外骨架41与隔振座7上骨架71铆接,使橡胶主簧4与隔振座7连接为一体;从内芯子1顶部对液压悬置实施抽真空干灌后,压入钢珠13,与灌液孔12之间形成过盈密封;再将连接螺栓11装配到内芯子1的螺纹孔内;然后将限位罩3过盈压装在主簧外骨架41外侧壁上;最后将防撞罩2盖在限位罩3的顶部。
当发动机产生的激振通过悬置支臂传递到发动机的悬置支臂时,通过橡胶主簧4和流道组件5对激振实施第一级隔振,衰减后再通过隔振座7上的隔振簧73实施第二级衰减,两级隔振使得传递到车架上的振动能量降至最小。
Claims (8)
1.一种两级隔振的液压悬置,其特征在于:包括内芯子(1)、限位罩(3)、防撞罩(2)、流道组件(5)和连接螺栓(11),所述内芯子(1)的下部设有橡胶主簧(4),所述橡胶主簧(4)下部的外侧壁上设有主簧外骨架(41),所述限位罩(3)的下部过盈压装在主簧外骨架(41)的外侧壁上,所述限位罩(3)的顶部压装在橡胶主簧(4)的顶部,并与内芯子(1)的肩部之间相隔一定的限位距离,所述防撞罩(2)盖在限位罩(3)的顶部,所述橡胶主簧(4)的底部设有隔振座(7),所述隔振座(7)与橡胶主簧(4)之间形成有封闭的液腔,所述液腔通过流道组件(5)分隔成上液腔(6)和下液腔(61),所述流道组件(5)固定在隔振座(7)的顶部与橡胶主簧(4)之间,所述连接螺栓(11)的下部设于内芯子(1)上部的螺纹孔内,所述螺纹孔通过灌液孔(12)与上液腔(6)连通,所述灌液孔(12)通过钢珠(13)形成过盈密封。
2.根据权利要求1所述的两级隔振的液压悬置,其特征在于:所述流道组件(5)包括流道本体(52)和解耦膜(53),所述解耦膜(53)置于流道本体(52)中央的容腔内,所述容腔的底部均匀设有若干下通液孔(523),位于所述容腔***的流道本体(52)上设有环形流道(522),所述环形流道(522)通过出液口(521)与下液腔(61)连通,位于所述环形流道(522)***的流道本体(52)上设有多个定位销(524),所述流道本体(52)的顶部设有流道盖板(51),所述流道盖板(51)上设有与下通液孔(523)对应的上通液孔(512)、与出液口(521)对应的进液口(511)以及与定位销(524)配合的定位孔(513)。
3.根据权利要求2所述的两级隔振的液压悬置,其特征在于:所述流道本体(52)和流道盖板(51)均为PA66塑料或铝合金材质。
4.根据权利要求1所述的两级隔振的液压悬置,其特征在于:所述隔振座(7)包括上骨架(71)和下骨架(72),所述下骨架(72)的外侧壁与上骨架(71)之间设有隔振簧(73),所述下骨架(72)的内侧壁之间设有皮碗(74),所述上骨架(71)与主簧外骨架(41)铆接固定。
5.根据权利要求4所述的两级隔振的液压悬置,其特征在于:所述下骨架(72)上设有多个安装孔(721)。
6.根据权利要求4所述的两级隔振的液压悬置,其特征在于:所述隔振簧(73)的底部设有限位撞块,所述限位撞块与隔振簧(73)一体成型。
7.根据权利要求4所述的两级隔振的液压悬置,其特征在于:所述上骨架(71)、下骨架(72)、隔振簧(73)与皮碗(74)通过橡胶硫化为一体,且所述上骨架(71)和下骨架(72)均为冲压件。
8.根据权利要求1所述的两级隔振的液压悬置,其特征在于:所述内芯子(1)、橡胶主簧(4)与主簧外骨架(41)通过橡胶硫化为一体,且所述主簧外骨架(41)和限位罩(3)均为冲压件。
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107939899A (zh) * | 2017-11-23 | 2018-04-20 | 保定威奕汽车有限公司 | 液压悬置流道结构与液压悬置 |
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