The utility model relates to a buckling type high-pressure rubber hose joint, which comprises a sleeve and a mandrel. The number of buckling teeth on the inner surface of the sleeve is the same as that on the outer surface of the mandrel. The height of the buckling teeth of the sleeve is controlled within the range of 12%-14% of the thickness of the inner rubber layer. The spacing of the buckling teeth of the sleeve increases in an equal sequence, and the spacing of the buckling teeth The invention effectively solves the problems of the rubber tube sleeve with uniform distribution of the traditional buckling teeth. During the buckling process, the material stiffness is lower than the core rod and the ductility is much higher than the core rod, which results in the tooth top of the sleeve being exactly opposite to the tooth top of the core rod after the buckling, resulting in the internal rubber layer fracturing, the steel wire layer fracturing, resulting in the reduction of the sealing and pull-out resistance of the joint, etc. Problems of operation. After the buckling of the structure of the invention is completed, the top position of each tooth of the mandrel is opposite to the grooves of the two teeth of the sleeve, and the steel wire and rubber are not easily broken, resulting in pull-out and sealing failure, thereby prolonging the service life of the rubber pipe, enhancing the sealing property of the rubber pipe, and improving the reliability of the connection of the high-pressure pipeline.
【技术实现步骤摘要】
一种扣压式高压胶管接头
本专利技术属于胶管接头
,具体地说是一种扣压式高压胶管接头。
技术介绍
在液压传动等高压流体输送的管路中,管路之间连接多用高压胶管接头,接头核心部位为套筒和芯杆,二者的连接形式决定着胶管总成的密封与抗拔脱性能。套筒内表面锯齿的深度、沟槽间距等都对扣压接头的密封性能有直接的影响。扣压后套筒锯齿直接和胶管钢丝层接触,在径向压力作用下,胶管的壁厚在套筒和芯杆之间被压缩,胶管端部的钢丝层和内胶层被压成波浪形进入套筒的锯齿形槽内,胶管接头获得较大的抗拔脱力。传统的高压胶管接头套筒、芯杆扣齿等间距排列,扣压延伸后,若套筒齿顶与芯杆的齿顶刚好相对,则容易导致内胶层压裂、钢丝层压断现象,且接头与管体不易扣紧,管体易从接头的插接部和接头套筒的扣压处脱出,从而导致接头密封性和抗拔脱性降低,接头处渗漏甚至破裂泄漏现象,给设备正常使用造成了极大的影响。
技术实现思路
本专利技术提供一种扣压式高压胶管接头,用以解决现有技术中的缺陷。本专利技术通过以下技术方案予以实现:一种扣压式高压胶管接头,其特征在于:包括套筒和芯杆,套筒内表面扣齿数与芯杆外表面的扣齿数量相同,套筒扣齿高度控制在内胶层厚度的12%~14%范围内,套筒扣齿间距通过计算呈等差数列方式递增,芯杆扣齿间距相同,芯杆刚度大于套筒,延展性小于套筒。如上所述的一种扣压式高压胶管接头,所述接头套筒延展量通过实际用料的测试实验获得。如上所述的一种扣压式高压胶管接头,所述接头套筒尺寸短于芯杆,依据高压胶管的结构、扣压量大小等确定。如上所述的一种扣压式高压胶管接头,所述接头套筒扣齿间距根据实际扣压量和延展量确定 ...
【技术保护点】
1.一种扣压式高压胶管接头,包括套筒(1)和芯杆(2),其特征在于:套筒(1)内表面扣齿(3)与芯杆(2)外表面的扣齿(4)数量相同,套筒扣齿(3)高度控制在内胶层厚度的12%~14%范围内,套筒扣齿(3)间距通过计算呈等差数列方式递增,芯杆扣齿(4)间距相同。
【技术特征摘要】
1.一种扣压式高压胶管接头,包括套筒(1)和芯杆(2),其特征在于:套筒(1)内表面扣齿(3)与芯杆(2)外表面的扣齿(4)数量相同,套筒扣齿(3)高度控制在内胶层厚度的12%~14%范围内,套筒扣齿(3)间距通过计算呈等差数列方式递增,芯杆扣齿(4)间距相同。2.根据权利要求1所述的一种扣压式高压胶管接头,其特征在于:所述的芯杆(2)材料刚度大于套筒...
【专利技术属性】
技术研发人员:陈国明,张国栋,王芳,孟祥坤,朱红卫,王斌,陈国星,
申请(专利权)人:中国石油大学华东,山东龙口特种胶管有限公司,
类型:发明
国别省市:山东,37
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。