一种受径向载荷螺钉强度校核方法

Radial Load Screw Strength Check Method

摘要: 螺接是机械产品中使用最广泛的连接方式之一，对于受到复杂载荷特别是载荷量级较大的连接件，单个连接螺钉的断裂可能会导致其余螺钉依次断裂，最终损坏设备，甚至出现安全问题。本文针对受到径向载荷的螺接件进行受力分析，提出了该类型螺钉连接件的安全使用条件和校核公式，并针对某实例采用有限元法进行验证。结果表明：该计算方法可以得到螺钉危险位置的受力大小，可用于对受到复杂载荷的螺接件的螺钉进行校核。

Abstract: Screwing is one of the most widely used connection methods in mechanical products. For connectors that are subject to complex loads, especially those with large load levels, the breakage of a single connecting screw may cause the remaining screws to break in sequence, eventually damaging the equipment and even presenting safety issues. In this paper, the force analysis of screwed parts subjected to lateral load is carried out, and the safe use conditions and verification formulas of this type of screw connection are proposed. The finite element method is used to verify the example. The results show that the calculation method can obtain the force of the dangerous position of the screw, and can be used to check the screw of the screwed parts with complicated load.