Vanes in axial flow pump, the liquid motion movement along a spiral surface as if, in addition to the liquid moves axially, there is rotational motion. Vanes are fixed to the casing does not move, the water passes through the vanes eliminates the rotational movement, the rotational kinetic energy into pressure energy. Therefore, the role is to guide vane rotary motion of the impeller flow flowing upward into axial movement. General axial pump vanes 6-12 pieces. Shaft is used to transmit torque. In large axial flow pump, in order to adjust the hub body is arranged, the operating mechanism, the shaft is often made of a hollow shaft, which is arranged adjustment operation tubing. Bearing in axial flow according to their functions in two ways: ① guide bearings are mainly used to bear radial force, played the role of the radial positioning; ② thrust bearings, its main role in vertical axial pump is used withstand the action of water on the blade downward direction of axial thrust, pump rotating parts by weight and maintain the axial position of the rotor and the thrust reached base unit up. Bend shaft axial pump water hole sealing device needs to be set, the moment, still packing gland sealing device commonly used type. Guide vane axial flow pump, also known as mixed flow pumps, axial flow diffuser type different from the volute type, mainly in the pump body has several typically twisted blade guide vane device space. After the liquid from the impeller vanes out after the axial flow. The pump generally have both horizontal and vertical, the internal structure is basically the same. Most large diameter made of vertical. Small caliber vertical guide vane axial flow pump looks much like a centrifugal pump Asai, the pump structure is simple, easy to move, suitable for agricultural irrigation, so called Francis agriculture efflux pump. Official website: http: //www.ythlby.cn/