The invention discloses a riveted double head stud assembly. The rivet is composed of rivets and rings; the rivet is a double head thread structure, including the front thread section, ring groove section and rear thread section arranged in the order of the rod surface; the inner diameter of the ring is matched with the rivet outer diameter gap, and the outer surface of the ring has a ring thread opposite to the thread of the front thread, and the ring groove is surrounded by at least one groove in the middle of the rivet's face. The outer surface of the outer ring of the sleeve ring is composed of a ring thread segment and a ring cylinder section, and the outer surface of the ring cylinder section is smooth, and the axial length is not less than the length of the annular groove section. The invention adopts the opposite structure of ring and rivet, and adopts ring groove riveting structure design. In the process of riveting, this structure is mainly the force of the double head stud assembly, the force of the workpiece is small, the working condition is more extensive, and the rivet can be fixed on the work piece smoothly, and the double head stud can be guaranteed to have excellent anti loosening and anti degrading properties. Yes.
【技术实现步骤摘要】
一种铆接双头螺柱组件
本专利技术属于铆接紧固
,尤其属于铆接紧固件的设计与制造
,特别涉及一种可防松防脱的铆接紧固件双头螺柱组件。
技术介绍
拉铆紧固连接技术在铁路、航空、汽车、船舶等行业均得到了广泛应用,属于常规的紧固连接技术。通常的双头螺柱连接技术是靠螺纹拧入待连接件从而起到连接作用,但螺纹连接在震动、持续受力等工况下很容易发生松动脱落,从而导致连接失效。
技术实现思路
本专利技术根据现有技术的不足公开了一种铆接双头螺柱组件。本专利技术要解决的问题是提供一种利用金属塑性变形将双头螺柱锁死在安装孔处,从而达到防松防脱的目的的紧固件双头螺柱组件结构。该双头螺柱具有连接强度高、易操作、效率高等优点,能够有效解决普通双头螺柱易松动、脱落的问题,适用于各种规格的螺柱。本专利技术通过以下技术方案实现:铆接双头螺柱组件,其特征在于:所述组件由铆钉和套环构成;所述铆钉为双头螺纹结构,包括顺序布置于杆面的前螺纹段、环槽段和后螺纹段;所述套环内径与铆钉外径间隙配合,套环外表面有与前螺纹段螺纹旋向相反的环螺纹段。所述环槽段有环绕铆钉杆面中部的至少一条凹槽。所述前螺纹段与环槽段之间有光面的圆柱段。所述套环的轴向外表面由环螺纹段和环圆柱段构成,环圆柱段外表面为光面,轴向长度不小于环槽段长度。本专利技术双头螺柱组件是利用金属塑性变形将双头螺柱铆钉锁死在安装孔处,从而达到防松防脱的目的。该双头螺柱铆钉具有连接强度高、易操作、效率高等优点,能够有效解决普通双头螺柱易松动、脱落的问题,且适用于各种规格的螺柱。本专利技术双头螺柱铆钉拧入工件端螺纹的旋向和套环外部螺纹的旋向相反,使 ...
【技术保护点】
1.一种铆接双头螺柱组件,其特征在于:所述组件由铆钉(1)和套环(2)构成;所述铆钉(1)为双头螺纹结构,包括顺序布置于杆面的前螺纹段(11)、环槽段(12)和后螺纹段(13);所述套环(2)内径与铆钉(1)外径间隙配合,套环(2)外表面有与前螺纹段(11)螺纹旋向相反的环螺纹段(21)。
【技术特征摘要】
1.一种铆接双头螺柱组件,其特征在于:所述组件由铆钉(1)和套环(2)构成;所述铆钉(1)为双头螺纹结构,包括顺序布置于杆面的前螺纹段(11)、环槽段(12)和后螺纹段(13);所述套环(2)内径与铆钉(1)外径间隙配合,套环(2)外表面有与前螺纹段(11)螺纹旋向相反的环螺纹段(21)。2.根据权利要求1所述的铆接双头螺柱组件,其特征在于:所述环槽段(...
【专利技术属性】
技术研发人员:张钦,刘宇,邓涛,贾云龙,何旭,代广成,范亚峰,徐建平,肖长玖,张荣,
申请(专利权)人:眉山中车紧固件科技有限公司,
类型:发明
国别省市:四川,51
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