Surface profiling method of the disk cutter of the male rotor from the screw compressor component

Résumé

The active surfaces of the screw compressors rotors are cylindrical helicoidal surfaces, with constant step; these surfaces are complex surfaces in order to meet a set of specifics conditions. This paper presents, according to the theorems referring to enveloping surfaces, a specific application regarding the principle of replacement of elementary generators surfaces belonging to the set of helicoidal surfaces described by dot matrix, using the tangent method , in order to determine the shape of disk cutter profile for the male rotor. Also, based on a Java soft product, we present frontal applications of the axial shapes of the generating disk cutter for the male rotor, component of screw compressor, gear ratio 4/6 and 3/5.