六角尼龙锁紧螺母(图1),是在普通六角螺母的上端铆压一段无内螺纹的尼龙圈。该尼龙圈在与螺检旋合过程中,通过螺栓的自攻作用,挤压出相应的牙型,牙型侧面受挤压而与螺检牙型侧面间产生很大的摩擦力,达到防松的目的。轮式装载机在铲装过程承受着巨大的外载荷和剧烈振动,许多重要部位的螺母虽采用了各种防松办法,如桥螺检采用双螺母防松,但仍常出现松动,防碍机械的正常运转,给机械 The hexagonal nylon lock nut (Fig. 1) is a nylon ring that is not internally threaded at the upper end of an ordinary hex nut. In the process of screw threading and screwing, the nylon ring presses the corresponding tooth profile through the self-tapping action of the bolt, and the side profile of the tooth profile is squeezed to generate a large frictional force with the side surface of the screw inspection tooth to achieve the prevention The purpose of loose. The wheel loader is subjected to huge external loads and severe vibration during the shoveling process. Many important parts of the nut adopt various anti-loosening methods, such as the double-nut anti-loosening of the bridge screw, but the looseness often occurs. The normal operation of machinery, to machinery