自锁条件的偏差蜗杆传动常被采用在一些机械产品中,如:起重运输机械、铸造浇注用的铁水包、发动机翻转装配车等。蜗杆传动不仅能起传动作用,有时还利用它具有的自锁性来满足使用要求。A.T.巴徒林著《机械零件》中提到:“当(蜗杆螺旋线导角)λ≤6°时,能保证自锁”;西北工大编《机械设计》中提到:“当λ小于摩擦角时,蜗杆传动便具有自锁性。” Deviation from the self-locking conditions Worm drive is often used in some mechanical products, such as: lifting transport machinery, cast casting ladle, engine rollover assembly vehicles. Worm drive can not only play the role of transmission, and sometimes it also has the use of self-locking to meet the requirements. In his article “Machinery Parts”, ATB Pavlin mentions: “Self-locking can be guaranteed when λ (angle of worm screw) λ≤6 °”; Northwestern Engineering’s “Mechanical Design” mentions: “When λ is less than friction Angle, the worm drive will have self-locking. ”