CN107283947A - 一种具有微观吸附特性的微小间隙填充垫层 - Google Patents
一种具有微观吸附特性的微小间隙填充垫层 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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Abstract
本发明公开了一种具有微观吸附特性的微小间隙填充垫层,包括吸附在组合回转体结构层间间隙零部件表面的两组微吸盘阵列;包括两层基底;包括一层用于补偿回转体的间隙变化的高弹性材料层;第一层基底的第一面与高弹性材料层的一面连接,第二层基底的第一面与高弹性材料层的第二面连接,第一层基底的第二面固定一组微吸盘阵列,第二层基底的第二面固定另一组微吸盘阵列。本发明一种具有微观吸附特性的微小间隙填充垫层,既可在不引入其它材料的前提下,在指定区域快速准确完成敷设,可以适应任意复杂曲面填充结构;由于垫层双面均吸附在结构表面,因此还可以提供一定的防止相互配合的两个部件相对转动滑移的能力。
Description
技术领域
本发明属于微小间隙填充垫层技术领域,具体涉及一种具有微观吸附特性的微小间隙填充垫层。
背景技术
在武器系统和民用产品中,有大量的由多层回转体零部件所组成的组合结构。在实际产品中,受某些功能方面的限制需保持回转体结构的连续完整,因此这些回转体通常采用高弹性垫层作为组合回转体结构层间间隙的填充材料,通过压缩填充材料产生预紧载荷实现对回转体各层的抱紧防松和补偿温度变化所引起的间隙变化,提高产品的环境适应性。同时填充材料需保证回转体两层之间的柔性连接,不发生相对滑移转动,以保证产品的功能正常。
在采用高弹性垫层进行层间间隙填充及补偿时,由于结构各零部件间预留间隙的绝对值较小(通常小于1mm),需提前将高弹性垫层敷设在需进行间隙补偿的零部件表面的指定区域;受多层回转体结构的功能及环境要求,在进行敷设时不允许引入胶粘剂等辅助材料进行位置固定。因此对微小间隙的多层回转体层间间隙高弹性垫层的敷设方式提出了较高要求。现阶段不具备此类微小间隙填充垫层,急需进行研发。
发明内容
本发明的目的就在于为了解决上述问题而提供一种具有微观吸附特性的微小间隙填充垫层。
本发明通过以下技术方案来实现上述目的:
一种具有微观吸附特性的微小间隙填充垫层,
包括吸附在组合回转体结构层间间隙零部件表面的两组微吸盘阵列;
包括两层基底;
包括一层用于补偿回转体的间隙变化的高弹性材料层;
第一层基底的第一面与高弹性材料层的一面连接,第二层基底的第一面与高弹性材料层的第二面连接,第一层基底的第二面固定一组微吸盘阵列,第二层基底的第二面固定另一组微吸盘阵列。
具体地,微吸盘阵列包括多个微吸盘组成。
本发明的有益效果在于:
本发明一种具有微观吸附特性的微小间隙填充垫层,既可在不引入其它材料的前提下,在指定区域快速准确完成敷设,可以适应任意复杂曲面填充结构;由于垫层双面均吸附在结构表面,因此还可以提供一定的防止相互配合的两个部件相对转动滑移的能力。
附图说明
图1是本发明一种具有微观吸附特性的微小间隙填充垫层的结构示意图;
图2是本发明中另一种实施例的结构示意图。
图中:1、微吸盘阵列,2、基底,3、高弹性材料层。
具体实施方式
下面结合附图对本发明作进一步说明:
如图1所示,一种具有微观吸附特性的微小间隙填充垫层,包括吸附在组合回转体结构层间间隙零部件表面的两组微吸盘阵列1;包括两层基底2;包括一层用于补偿回转体的间隙变化的高弹性材料层3;第一层基底2的第一面与高弹性材料层3的一面连接,第二层基底2的第一面与高弹性材料层3的第二面连接,第一层基底2的第二面固定一组微吸盘阵列1,第二层基底2的第二面固定另一组微吸盘阵列1。
高弹性材料层3为发泡材料或者硅橡胶材料制成。
微吸盘阵列1包括多个微吸盘组成。
本发明典型应用在回转体结构中,但不局限在该结构。
本发明中微吸盘阵列1、基底2和高弹性材料层3三者可由同一种弹性材料或不同弹性材料制备;其中微吸盘阵列1是在基底2表面分布的若干个微吸盘组成,用于在敷设过程中吸附在回转体零部件表面,微吸盘阵列1的制备可采用模具成型或采用3D打印技术直接在基底2上制备;基底2用于微吸盘阵列1在垫层上的布置,为一层致密的弹性材料;高弹性材料层3用于补偿回转体的间隙变化,可采用发泡的弹性材料(如硅橡胶材料等),也可采用其它具有良好弹性的材料或3D打印的具有空间结构的弹性材料(如图2所示)。当高弹性材料层3也采用致密的弹性材料时,基底2与高弹性材料层3可以合并为同一层。
工作过程:对于间隙配合的具有复杂曲面形状的多层回转体,其相互配合的两个部件A与B之间存在小间隙,首先选取比回转体结构层间间隙稍厚的具有微观吸附特性的垫层,在回转体组装完成前,将其放置在指定的敷设区域,此时垫层的微吸盘与部件A之间形成一个内部充满空气的封闭空间;采用柔性工装压紧垫层,使垫层的微吸盘与部件A之间贴合,垫层单面与部件A吸附;将部件A与B进行装配,对A、B及垫层施加一定的预紧力,确保垫层另一面的微吸盘与部件B之间贴合,并吸附;最后组装完成回转体,在此过程中,应避免回转体各零部件之间的相对转动,从而避免垫层在装配阶段出现褶皱等影响性能的情况。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其效物界定。
Claims (2)
1.一种具有微观吸附特性的微小间隙填充垫层,其特征在于:
包括吸附在组合回转体结构层间间隙零部件表面的两组微吸盘阵列;
包括两层基底;
包括一层用于补偿回转体的间隙变化的高弹性材料层;
第一层基底的第一面与高弹性材料层的一面连接,第二层基底的第一面与高弹性材料层的第二面连接,第一层基底的第二面固定一组微吸盘阵列,第二层基底的第二面固定另一组微吸盘阵列。
2.根据权利要求1所述的一种具有微观吸附特性的微小间隙填充垫层,其特征在于:微吸盘阵列包括多个微吸盘组成。
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