Spraying machine screw pump working principle
‌The working principle of the spray machine screw pump ‌ is based on the rotating internal engagement positive displacement principle. The screw pump is mainly composed of an eccentric rotor and a fixed bushing stator, which forms a plurality of sealed working chambers inside the pump. When the motor drives the pump shaft to rotate, the screw rotates around its own axis and rolls along the inner surface of the bushing to form the seal chamber of the pump. With the continuous rotation of the screw, the liquid in the sealing cavity is pressed to another sealing cavity in a spiral shape, and finally extruded from the pump ‌
Screw pump structure
The basic structure of the screw pump includes a stator and a rotor. The stator is composed of suction chamber and discharge chamber, and the rotor is composed of screw and bushing. The motor drives the gearbox to rotate through the coupling, and drives the eccentric rotation of the eccentric sleeve after the gear change, so as to promote the main bearing of the rotor to rotate at high speed. This design ensures high quality operation of the conveying medium ‌
Characteristics of screw pump
‌ uniform flow, stable pressure ‌ : because the liquid of the screw pump is uniformly flowing along the axis, the internal flow rate is low, will not form eddy current and agitation, so there is no pressure loss to the transported liquid ‌2.
‌ good variable adjustability ‌ : flow is proportional to the speed of the pump, suitable for the need to adjust the flow of the occasion ‌
‌ wide range of application ‌ : can transport different viscosity media, suitable for high solid content media ‌
‌ flexible installation ‌ : the installation position of the pump can be tilted at will, simple structure, convenient maintenance ‌