The utility model discloses an ultra-high pressure one-way valve, including a valve body and an end cover, which are sealed and connected with the valve body. Pressure sleeve, guide sleeve and valve seat are successively arranged in the inner cavity of the valve body from left to right, and the pressure sleeve, guide sleeve and valve seat inner cavity are connected. The guide sleeve is provided with a spring and a sealing ball, and the sealing ball is located in the valve body. The spring is pressurized against the valve seat and sealed with the valve seat cavity. The spring is pressurized against the inner end face of the pressure sleeve, and the other end is pressurized on the sealing ball. The utility model realizes self-sealing by sealing balls and springs, is not easy to wear seals, and is reliable in sealing. The sealing balls of the ultra-high pressure one-way valve of the utility model are sealed by pressing the sealing balls on the sealing seat through the springs. The structure of the sealing balls is simple and easy to manufacture, and the springs and the sealing balls are installed in the guide sleeves, with compact structure, compact size and easy to manufacture. Yu Weihu.
【技术实现步骤摘要】
超高压单向阀
本技术涉及一种单向阀,特别涉及一种超高压单向阀。
技术介绍
液压系统>32MPa可称为超高压,超高压状态下,原来用于常压系统的液压阀已不能胜任,金刚石压机系统超高压力在90MPa左右,在高压系统中大量使用单向阀,目前,金刚石压机系统中使用的单向阀还是在低压单向阀的基础上,通过热处理提高材料的硬度和强度来实现,使用寿命短,密封泄漏,迫其需要一种新型的单向阀,解决寿命和密封的问题。而且现有技术在超高压单向阀上,无单独结构,由于在超高压设计上国内通常以插入方式结构,阀体为集成结构,在超高压油液系统布置上极其复杂,阀体加工困难,制造成本很高,且维修困难。
技术实现思路
本技术的目的是针对上述存在的问题和不足,提供一种密封性能可靠、结构紧凑的超高压单向阀。为实现上述目的,本技术所采用的技术方案是:一种超高压单向阀,包括阀体和端盖,所述端盖与所述阀体密封连接,所述阀体内腔内由左至右依次设有压套、导套和阀座,所述压套、导套和阀座内腔连通,所述导套内设有弹簧和密封球,所述密封球在所述弹簧的顶压下顶压在所述阀座上并将所述阀座内腔密封,所述弹簧一端顶压在所述压套内端面上,另一端顶压在所述密封球上,所述阀座与所述阀体腔体底面之间通过密封垫密封,其内腔通过第一介质流道与高压油进口连接,所述阀体内腔通过第二介质流道与低压油出口连接。在上述技术方案中,所述的压套与所述阀体内腔过盈配合。在上述技术方案中,所述的密封垫为铜垫。在上述技术方案中,所述的密封球和阀座均采用硬质合金制成,且所述密封球和阀座均经研磨加工。本技术的有益效果是:本技术通过密封球和弹簧实现自密封,不 ...
【技术保护点】
1.一种超高压单向阀,包括阀体和端盖,所述端盖与所述阀体密封连接,其特征在于,所述阀体内腔内由左至右依次设有压套、导套和阀座,所述压套、导套和阀座内腔连通,所述导套内设有弹簧和密封球,所述密封球在所述弹簧的顶压下顶压在所述阀座上并将所述阀座内腔密封,所述弹簧一端顶压在所述压套内端面上,另一端顶压在所述密封球上,所述阀座与所述阀体腔体底面之间通过密封垫密封,其内腔通过第一介质流道与高压油进口连接,所述阀体内腔通过第二介质流道与低压油出口连接。
【技术特征摘要】
1.一种超高压单向阀,包括阀体和端盖,所述端盖与所述阀体密封连接,其特征在于,所述阀体内腔内由左至右依次设有压套、导套和阀座,所述压套、导套和阀座内腔连通,所述导套内设有弹簧和密封球,所述密封球在所述弹簧的顶压下顶压在所述阀座上并将所述阀座内腔密封,所述弹簧一端顶压在所述压套内端面上,另一端顶压在所述密封球上,所述阀座与所述阀体腔体底面之间通过密封垫密封,...
【专利技术属性】
技术研发人员:华广明,张国平,
申请(专利权)人:柘城县翔泰磨料磨具有限公司,
类型:新型
国别省市:河南,41
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