DESIGN METHOD FOR ARC THREADED CONNECTION PAIR

The present invention relates to a design method for an arc threaded connection pair. When designing the arc threaded connection pair parameters, the parameters of an external arc thread satisfy 0.13 < k < 0.2 and 0.2 < m < 0.3, the parameters of an internal arc thread satisfy 0.29 < M < 0.37, 0.3 < s < 0.36, and the fit clearance of the arc threaded connection pair is verified by 0.6 < n < 0.8, thus, the design efficiency of the structural parameters of the external arc thread and the internal arc thread can be greatly improved, the number of repeated tests is reduced, and the technical problem in existing arc threaded connection pairs of low design efficiency of the thread parameters is solved. La présente invention concerne un procédé de conception pour une paire de connexion filetée à l'arc. Lors de la conception des paramètres de paire de connexion filetée à l'arc, les paramètres d'un fil d'arc externe satisfont 0,13 < k < 0,2 et 0,2 < m < 0,3 ; les paramètres d'un fil d'arc interne satisfont 0,29 < M