本文以直冲面弧顶无返回力矩擒纵机构为研究对象,统一了它在各种传冲模式下的运动模型。在探讨了机构的角速比、力较比变化规律的基础上,建立了统一的啮合运动数学模型。本文重新推导了擒纵轮前置轮系的等效力矩及等效转动贯量,完善了其数学表达式。 In this paper, the non-return moment escapement with straight-to-the-top arc roof is taken as the research object, which unifies its motion model in various pass-through modes. Based on the discussion of the mechanism of angular velocity ratio and force ratio change, a unified mathematical model of meshing motion was established. This paper re-derives the equivalent torque and equivalent rotation of the front wheel of the escape wheel and improves its mathematical expression.