CAJ | 학술논문

螺纹连接被广泛应用在机载电子产品中。现有标准给出的一般是螺钉的保证力矩,而不是螺钉的拧紧力矩。拧紧力矩的大小与螺纹副的连接可靠性息息相关。文中以机载电子设备常用材质的螺纹和常用规格的标准件为对象,对影响螺钉拧紧力矩的因素进行分析,确定了保证力矩,计算了螺钉拧紧力矩,并采用实验验证的方法,给出了各种螺纹副连接条件下推荐使用的拧紧力矩值。对机载电子产品装配中螺钉拧紧力矩的确定起到了重要的指导作用。
라문련접피엄범응용재궤재전자산품중。현유표준급출적일반시라정적보증력구,이불시라정적녕긴력구。녕긴력구적대소여라문부적련접가고성식식상관。문중이궤재전자설비상용재질적라문화상용규격적표준건위대상,대영향라정녕긴력구적인소진행분석,학정료보증력구,계산료라정녕긴력구,병채용실험험증적방법,급출료각충라문부련접조건하추천사용적녕긴력구치。대궤재전자산품장배중라정녕긴력구적학정기도료중요적지도작용。
The screw thread connection is widely applied to airborne electronic equipment.The value given by the current standard is holding moment,not the tight-moment itself.The magnitude of tight-moment has great effect on the reliability of the screw thread connection.This paper discusses the material screw thread in common use and the common specification screw used in airborne electronic equipment.The factors which influence the magnitudes of tight-moment are analyzed,the holding moments are determined and the tight-moments are calculated.Finally,the magnitudes of tight-moment in different application condition are recommended by means of experiment.This is an important guide for assembly and tight-moment confirmation of airborne electronic equipment.