A deep sea high pressure resistant hydraulic cylinder seal structure, belonging to the technical field of hydraulic cylinder seal, dynamic seal, including isolation oil, floating piston, end cover, cylinder, piston rod, oil, which is characterized in that the cylinder oil and isolation oil stored in the cylinder internal isolation the oil pressure of oil cylinder, the internal arrangement of the three seal, floating piston arranged in the cylinder internal and external blocking by the cover from the cylinder, is fixedly connected with the end cover and cylinder, a 10mm gap between the left end cover and a piston rod, Unicom and outside water, the surface of the piston set three seals floating and floating piston as second dynamic sealing parts, injection hole arranged in a position of the floating piston movement interval. The advantages of the invention are as follows: deep sea environment 0 ~ 2000m, and long time working in seawater environment, which can well satisfy the sealing performance of hydraulic cylinder, and has simple structure and convenient replacement.
【技术实现步骤摘要】
一种深海耐高压式液压缸密封结构
本专利技术涉及一种深海耐高压式液压缸密封结构,具体说是由利用动密封,隔离油液,浮动活塞组成,属于液压缸密封
技术介绍
现有的液压缸主要包括缸筒、后端盖、活塞、活塞杆和密封件,这类液压缸一般应用在空气压力环境或短时间在变化的压力环境,基本满足要求。但是针对深海环境0~2000m,且长时间浸泡在海水环境,由于密封件的不合理,使得油缸的密封性能差。针对上述问题,设计了这种深海耐高压式液压缸密封结构。
技术实现思路
针对上述的不足,本专利技术提供了一种深海耐高压式液压缸密封结构。本专利技术是通过以下技术方案实现的:一种深海耐高压式液压缸密封结构,包括动密封、隔离油液、浮动活塞、端盖、缸筒、活塞杆、注油口,其特征在于:所述的缸内油液与隔离油液存放于缸筒内部,隔离油液为高压油液,缸筒内部设置三道动密封,浮动活塞安装在缸筒内部,外部由端盖挡住其脱离缸筒,端盖与缸筒连接固定,端盖与活塞杆之间留有10mm空隙,与外界海水联通,浮动活塞表面设置三道密封接口,且浮动活塞本身为第二道动密封部件,注油口布置在浮动活塞运动区间某位置即可。该专利技术的有益 ...
【技术保护点】
一种深海耐高压式液压缸密封结构,包括动密封、隔离油液、浮动活塞、端盖、缸筒、活塞杆、注油口,其特征在于:所述的缸内油液与隔离油液存放于缸筒内部,隔离油液为高压油液,缸筒内部设置三道动密封,浮动活塞安装在缸筒内部,外部由端盖挡住其脱离缸筒,端盖与缸筒连接固定,端盖与活塞杆之间留有10mm空隙,与外界海水联通,浮动活塞表面设置三道密封接口,且浮动活塞本身作为第二道动密封部件,注油口布置在浮动活塞运动区间某位置即可。
【技术特征摘要】
1.一种深海耐高压式液压缸密封结构,包括动密封、隔离油液、浮动活塞、端盖、缸筒、活塞杆、注油口,其特征在于:所述的缸内油液与隔离油液存放于缸筒内部,隔离油液为高压油液,缸筒内部设置三道动密封,浮动活塞安装在缸...
【专利技术属性】
技术研发人员:付永领,张志祥,赵子宁,
申请(专利权)人:北京航空航天大学,
类型:发明
国别省市:北京,11
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