在轴毂平键静联接中 ,对键的受力分析通常忽略其转动效应 ,使键的受力不能处于平衡状态 ,当传递较大的扭矩时 ,这种假设很不合理。本文假设键与轴毂工作面上为光滑面约束 ,挤压力为一定范围内的三角形分布或梯形分布 ,使键受力处于平衡状态 ,并据此推导计算了各接触面上的挤压力 ,讨论了轴毂平键静联接的挤压强度校核及合理设计等问题 In the hub-and-spoke static coupling, the force analysis of the keys usually neglects the rotation effect, so that the force of the key can not be in equilibrium. This assumption is unreasonable when the larger torque is transmitted. This paper assumes that the key and the hub face smooth surface constraints, the extrusion force within a certain range of triangular distribution or trapezoidal distribution, the key force in equilibrium, and deduced from the calculation of the contact pressure , Discussing the squeeze strength check and reasonable design of the hub-key static connection