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扭剪型高强螺栓达到扭矩值会断尾什么原理

来源:http://yonglemaxituan.com 日期:2021-12-22 发布人:admin

扭剪型螺栓使用扭剪型扳手施工,其根部使用正反向扭杆直接通过“梅花头”夹紧螺杆本身,故施拧时不会发生同转现象。

The torsional shear bolt is constructed with a torsional shear wrench, and its root uses a forward and reverse torsion bar to clamp the screw itself directly through the "plum blossom head", so the same rotation will not occur during tightening.
电动扭矩扳手
原理是:利用螺杆达到预拉力值时,材料所能承受对应的剪力,来设计削弱梅花头的根部截面,达到剪断的目的。
The principle is: when the screw reaches the pre tension value, the material can bear the corresponding shear force to design and weaken the root section of the plum blossom head, so as to achieve the purpose of cutting.
在施加扭矩聚集材料内拉应力达到设计值(“紧固轴力”)的同时,其材料的对应抗剪强度恰好能使梅花头削弱截面拧断。
When torque is applied to gather the internal tensile stress of the material to reach the design value ("fastening axial force"), the corresponding shear strength of the material can just make the weakening section of the plum blossom head twist off.