在水工闸门中,平面闸门的滚轮和弧形闸门的支铰都是很重要的支承构件,门叶承受的水压力完全由这些支承结构传递到埋设件中去。这些支承结构性能的好坏不但关系到闸门启闭是否灵活,而且更重要的是其摩阻力直接影响到启闭设备的容量。尤其近几年来,水工闸门向大跨度、高水头的方向发 In the hydraulic gate, the flat gate roller and the radial gate of the hinges are very important support member, the door leaves the water pressure is completely transmitted by the support structure to the embedded parts. The performance of these support structures is not only related to the gate opening and closing is flexible, but more importantly, its frictional resistance directly affects the capacity of hoist equipment. Especially in recent years, the hydraulic gate to the long-span, high head direction