防松墊(dian)(dian)圈(quan)由兩(liang)片墊(dian)(dian)圈(quan)組成，外側是帶(dai)有(you)放射狀(zhuang)凸(tu)紋面(mian)(mian)(mian)，內(nei)(nei)側為斜齒(chi)面(mian)(mian)(mian)。工作原理非常簡(jian)單：它當裝配時(shi)，內(nei)(nei)側斜齒(chi)面(mian)(mian)(mian)間相對，外側放射狀(zhuang)凸(tu)紋面(mian)(mian)(mian)與兩(liang)端接(jie)(jie)觸面(mian)(mian)(mian)成咬合狀(zhuang)態(tai)，當連接(jie)(jie)件受到(dao)振(zhen)動(dong)(dong)，并(bing)使螺栓(shuan)發(fa)生松動(dong)(dong)趨勢時(shi)，僅僅允許(xu)兩(liang)片墊(dian)(dian)圈(quan)內(nei)(nei)側斜齒(chi)面(mian)(mian)(mian)間相對錯(cuo)動(dong)(dong)，產生抬升張力，從而達到(dao)100%的鎖(suo)緊效(xiao)果。
