Vertical cooling tower coupler

The utility model provides a vertical cooling tower coupling, including main shaft, barrel, preload spring and preload flange, the inside both ends of barrel are respectively provided with one tapered roller bearing, the preload spring is provided between the two tapered roller bearings, the main shaft passes through the barrel, the tapered roller bearings and the preload spring. According to the utility model, the pre-tightening spring and the tapered roller bearing are used for replacing the original deep groove ball bearing, and the pre-tightening spring is used for improving a certain pre-load to eliminate the axial alternating load of the blade on the motor, thereby prolonging the service life of the motor. 本实用新型提供了一种立式冷却塔联轴器，包括主轴、筒体、预紧弹簧和预紧法兰，所述筒体的内部两端分别设有一个圆锥滚子轴承，两个所述圆锥滚子轴承之间设有预紧弹簧，所述主轴贯穿所述筒体、所述圆锥滚子轴承和所述预紧弹簧。本实用新型利用预紧弹簧和圆锥滚子轴承代替原有深沟球轴承，通过预紧弹簧提高一定的预载荷消除叶片对电机轴向的交替负载，延长电机寿命。