在振动条件下,螺纹斜面之间的摩擦阻力常常会出现瞬时减小或消失的现象。这种现象多次重复出现,会使联接逐渐松脱。因此设计时必须采取一定的防松措施。传统的防松方法如开口销、止动垫片等都增加成本,使用也不方便。在垫圈的一面刻上辐射状尖齿以及采用弹簧垫圈等方法,成本不高,使用也方便,但在振动条件下,防松效果并不十分可靠。 Under vibrating conditions, the frictional resistance between the thread bevels often appears to instantaneously decrease or disappear. Repeatedly this phenomenon will make the connection gradually loose. Therefore, the design must take some measures to prevent loosening. Traditional anti-loose methods such as cotter pins, stop wasts and the like all increase costs and are inconvenient to use. Carved on one side of the washer radiating sharp teeth and the use of spring washers and other methods, the cost is not high, easy to use, but the vibration conditions, the anti-loose effect is not very reliable.