2013
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结构与原理顶堆螺母组件由圆螺母及数个顶堆螺钉和一个硬质平垫组成，可用来直接替代传统的标准六角螺母。将其拧在螺栓、螺柱或带螺纹的杆、轴上，主螺纹将螺栓/螺柱上的圆螺母安置于硬质平垫上。圆螺母就位后，螺栓/螺柱的实际紧固通过手动工具拧紧主螺纹四周的顶堆螺钉即可，主螺纹承受纯拉力。（1）顶堆螺钉摩擦直径小，使用较小的钮矩即可产生巨大的加紧力By tightening the jackbolts,a strong thrust(axial)force is generated.This thrust force is directed against a hardened washer.Jackbolts against a hardened washer.Jackbolts have a smallfriction diameter and can therefore create a high...