A wheel hub for big fan

The utility model provides a wheel hub for big fan, including wheel hub body, setting nape, setting nape under the wheel hub of wheel hub body lower surface on the wheel hub of wheel hub body upper surface, the last nape of wheel hub is cylindricly, just the bottom of the last nape of wheel hub is equipped with the chamfer, the nape is the awl column under the wheel hub, just the inclination of nape is 8 under the wheel hub. According to the utility model provides an unichassis wheel hub goes up the nape and becomes the cylinder, and its bottom is equipped with the chamfer and has strengthenedintensity for big fan to more pleasing to the eye, lower nape has reduced inclination, makes bottom apron and wheel hub's contact surface increase, has increased the fastness of bottom apron. 本实用新型提出种用于大风扇的轮毂，包括轮毂本体、设置在轮毂本体上表面的轮毂上脖颈、设置在轮毂本体下表面的轮毂下脖颈，所述轮毂上脖颈呈圆柱状，且所述轮毂上脖颈的底部设有倒角，所述轮毂下脖颈呈锥柱状，且所述轮毂下脖颈的斜度为8°。根据本实用新型提供的用于大风扇的单底盘轮毂，上脖颈变为圆柱体，其底部设有倒角增强了强度，并且更加美观，下脖颈降低了倾斜角度，使底部盖板与轮毂的接触面增大，增加了底部盖板的牢固性。