Naslov
A Contribution to the Optimal Choice of the HCR-Gears Regarding Frictional Losses

Autori
Križan, Božidar ; Basan, Robert ; Lovrin, Neven

Izvornik
International journal of applied mechanics and engineering (1734-4492) 7 (2002); 249-254

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
addendum modification coefficient; frictional loss; gear; high contact ratio

Sažetak
High transverse contact ratio (HCR) gears are non-standard involute gears with a transverse contact ratio ea > 2 which proved adequate for use in automobiles, trucks, aircrafts and ships. The paper deals with the dependence of the sliding friction losses on HCR spur gears geometry: pressure angle, tooth height, gears centre distance resp. addendum modification coefficients sum, addendum modification coefficients sum distribution and other parameters. The calculations are based on the comparison between the values of the sliding friction loss geometrical factor, which comprises the influence of the magnitude and form of the toothing. A proper choice of these parameters is necessary for achieving good gearbox efficiency. The results of the calculations are shown in diagrams that can be a tribological guideline for the designer to choose gears optimal geometrical parameters.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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