Method of calculation of tribotechnical characteristics of the metal-polymer gear, reinforced with glass fiber, taking into account the correction of tooth

Abstract

Method of calculation of tribotechnical characteristicsof the Metal-polyMer gear, reinforced with glass fiber, taking into account the correction of tooth Metoda obliczeniowa tribotechnicznych charakterystyk przekładni zębatych Metal-poliMerowych z poliaMidu wzMocnionego włókneM szklanyM z uwzględnienieM korekcji zębówThe paper proposes a new method for calculating the service life, wear and contact pressures of metal-polymer gear drives with a correction profile. The effects of height and angular modification in a gear drive made of dispersive glass fibre-reinforced polyamide and steel on its contact and tribocontact parameters are determined. A numerical solution obtained for the gear with height correction has shown that the life of such gear is the longest when the profile correction coefficients 1 2x x =− = 0.1. It has been found that the service life of the gear with angular correction is shorter than that of the gear with correction height. The effects of gear tooth height and angular correction on maximum contact pressures and pinion wear are examined and determined.

Experimental Estimation of Wear Resistance of Polyamide Composites, Reinforced By Carbon and Glass Fibres Used in Metal-Polymer Gearings

“…where , -are nonlinear and exponential wear resistance characteristics of tribocouple materials, which are determined by formula (4) through approximation by the method of least squares through several iterations based on the experimental values of wear resistance functions determined earlier by formula (2), -shear strength of materials, k = 1; 2 -designation of tribocouple elements. The characteristic function of wear resistance is the basic integral parameter of the developed mathematical wear model (Chernets and Lenik, 1997, Chernets et al, 2011, Chernets, 2019b.…”

Prediction of the Service Life of Metal-Polymer Gears Made of Glass and Carbon Fibre-Reinforced Polyamide, Considering the Impact of Height Correction

“…A single (relating to a single interaction of the gear teeth) linear wear h' kj is determined according to the tribokinetic model of wear at sliding friction [3,5,9] in the following way:…”

“…Spur cylindrical gears are characterized by double-single-double-pair meshing. The angles describing the shift from double to single and again double-pair meshing were determined according to [3,7,9].…”

Calculated Assessment of Contact Strength, Wear and Resource of Metal-Polymer Gears Made of Dispersion-Reinforced Composites

“…A method for calculating the bearing capacity and tribotechnical characteristics of various (spur and helical cylindrical and bevel, as well as worm) gears is presented in [24][25][26][27] on the assumption of a fatigue wear mechanism. The application of this method to assess the contact strength, wear and life of the gear metal-polymer from antifriction polymer composites -polyamides filled with dispersed carbon and glass fibers, was shown in [29,30]. In this article, it is used to further investigate such gears, taking into account additional factors.…”