Authors

The use of computer modelling for the development of the working bodies’ profiles for screw single-rotor compressor

DOI: 10.17586/1606-4313-2018-17-1-61-66
UDC 621.515.4

The use of computer modelling for the development of the working bodies’ profiles for screw single-rotor compressor

Minikaev A.F., Pronin V.A., Zhignovskaya D.V. , Kuznetsov Yu.L.

For citation: Minikayev A.F., Pronin V.A., Zhignovskaya D.V., Kuznetsov Yu.L. The use of computer modelling for the development of the working bodies’ profiles for screw single-rotor compressor. Vestnik Mezhdunarodnoi akademii kholoda. 2018. No 1. p. 61-66

Abstract
The history of creation, application, and development of screw compressors is considered. The problem of low efficiency and reliability of screw single-rotor compressors operation and the problem of improving the profiles of working bodies are described. A system of differential equations for the mutual arrangement of the working bodies of a screw single-rotor compressor in vertical and horizontal planes is proposed to determine the position of any point on the contour of the tooth on the cutter and on the screw in a fixed coordinate system. The relationship between the moving coordinates of the screw and the fixed coordinates of the cutoff for an infinitely thin cut-off is considered. It is established that to determine the coordinates of any point on the cutter tooth of infinitely small thickness and for any point of the cavity of the screw it is possible to determine the coordinates of the resulting system of equations. Theuse of computer modeling and Boolean operations to create gaplessconnection between the working bodies of a screw-type single-rotor compressor by virtual break-in methodis justified. The calculation results of the coupling equations between the moving coordinates of the screw and the fixed coordinates of the cutter, as well as and computer modelingresults, allowusingCAD/CAM-systems for profiling the working parts of screw single-rotor compressors with both gapless and gap connection.

Keywords: screw single-rotor compressor, 3D-modeling, CAD / CAM systems, 3D printer, Boolean operations.

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