Products Description
In the air compressor system, the head is the core functional component for achieving air compression, and its performance directly determines the displacement, pressure, efficiency, and reliability of the air compressor.
- The head rotor is divided into a male rotor and a female rotor.
- The anode rotor has convex teeth on the outside of the pitch circle, usually 4 teeth; There are concave teeth inside the pitch circle of the female rotor, usually 6 teeth.
During operation, the two rotors rotate in opposite directions, with the male rotor connected to the prime mover, driving the female rotor to rotate.
In oil-free (dry) machines, the male rotor is driven by a synchronous gear to drive the female rotor, and the rotor meshing process does not contact each other; In the oil injected compressor, a large amount of lubricating oil is injected to replace the oil seal for sealing, omitting the timing gear.
Safe and stable
Firstly, when the rotor rotates, the tooth groove space of the female and male rotors reaches the opening of the intake end wall, and the space is maximized and connected to the intake port. At this time, due to the vacuum state of the tooth groove after exhaust, external gas is sucked in and enters the tooth groove along the axial direction. When the gas fills the tooth groove, the end face of the rotor on the inlet side rotates away from the inlet of the casing, and the gas is sealed, ending the suction process. During the sealing process, the interdental volume moves away from the inlet with the rotation of the screw, and the inhaled gas is sealed in the tooth groove.
Good sealing performance
At the end of the suction process during compression, the tips of the female and male rotor teeth are sealed off from the casing, and the gas no longer flows out. As the rotor continues to rotate, the meshing surface gradually moves towards the exhaust end, and the tooth groove space between the meshing surface and the exhaust port becomes smaller, compressing the gas and increasing the pressure. When the meshing end face of the rotor rotates to communicate with the exhaust port of the casing during the exhaust process, the compressed gas begins to be discharged until the meshing surface between the tooth tip and the tooth groove moves to the exhaust end face, and the exhaust process is completed. Due to the multiple pairs of meshing teeth along the axis of the female and male rotors, the screw air compressor can continuously suck in and discharge compressed gas.
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