CAJ | 학술논문

针对某款液压常闭型钳制器提供钳制力的螺栓，分析其受力情况与安全系数，验证了车去中段螺纹的螺栓直径为9 mm的光杆部分能够承受钳制器所需要的巨大的钳制力，但是在重新设计时，应当将光杆部分的直径尽量取得大一些，保证螺杆不会被拉坏。同时验证了大径为12 mm 的螺栓，各螺距对螺纹强度影响不大，并给出了不同大径不同螺距的普通螺纹危险截面的切应力与弯曲应力的计算公式，为替换其他标准和选用合适的国标普通螺纹提供了理论依据。
침대모관액압상폐형겸제기제공겸제력적라전，분석기수력정황여안전계수，험증료차거중단라문적라전직경위9 mm적광간부분능구승수겸제기소수요적거대적겸제력，단시재중신설계시，응당장광간부분적직경진량취득대일사，보증라간불회피랍배。동시험증료대경위12 mm 적라전，각라거대라문강도영향불대，병급출료불동대경불동라거적보통라문위험절면적절응력여만곡응력적계산공식，위체환기타표준화선용합괄적국표보통라문제공료이론의거。
Focusing on some hydraulic normal closed clamping device′s bolts which are the source of clam-ping force,the paper analyzed its stress situation and safety factor.It then verified that the 9 mm diameter of rod section of the bolt which was turned off can bear the huge clamping force of the clamping device. When re-designed,the diameter of rod section should be as larger as possible,to ensure that the bolt wouldn′t produce plastic deformation.It also verified that the 12mm nominal diameter′bolt,different pit-ches make little difference in the bolt thread strength,and gave the strength formula of shear stress and bending stress on the dangerous section of various pitches of different nominal diameter,so as to provide the theoretical basis of replacing other standards and choosing the suitable GB common thread.