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May 18, 2022 View:

Rotor pump structure form transmission mode and lubrication mode introduction

Structural form of rotor pump

The structural form of the rotor pump determines the form of the rotor pump. There are two broad structural forms of rotor pumps at home and abroad: vertical and horizontal. Vertical structure, the rotor axis is horizontally arranged, the plane formed by the two axes is perpendicular to the horizontal plane, and the rotor pump covers a relatively small area. The inlet and outlet are set horizontally, so it is convenient to assemble and take over. Horizontal structure, the rotor axis is arranged horizontally, the plane formed by the two axes is parallel to the horizontal plane, and it is more convenient to take over. The horizontal structure has a lower center of gravity compared to the vertical one, which provides better stability during operation.

The transmission of the rotor pump

The two rotors of the rotor pump are synchronized by a pair of high-precision gears to achieve relative synchronous operation of the two rotors. The main shaft is generally coupled to the motor through a coupling. The torque transmitted by the main shaft is large, the shaft should have sufficient strength and rigidity, and the shaft and rotor should be fixed firmly, otherwise it will cause the rotor gap to change and make the pump run abnormally, which will cause the volumetric efficiency to drop in light, and in heavy cases it will lead to collision between the rotors and destroy the pump.

Rotor pump lubrication

Gear and bearing lubrication, divided into two categories of oil lubrication and grease lubrication. Among them, oil lubrication has several ways such as drip lubrication, oil ring lubrication, splash lubrication and pressure cycle lubrication. Since oil lubrication has better heat dissipation than grease lubrication, gears and bearings are usually lubricated with oil.