G. N. Makarov, V. V. Grib, M. G. Shalygin

INCREASING LOAD-CARRYING ABILITY OF GEAR COUPLINGS

A method for increasing the load-carrying capacity of gear couplings by reducing maximum contact stresses is considered. The method is based on the use in the design of a gear box coupling, the teeth of which have three annular grooves made along a closed helix. This design allows you to give the teeth an elastic damping properties necessary to compensate for the uneven distribution of the load across the width of the tooth, due to the peculiarities of the operation of gear couplings. A solution to the problem of the elastic contact of two teeth of a gear coupling is given using the SolidWorks simulation finite element analysis software system. It has been established that the separation of the teeth of the gear cage by annular grooves makes it possible to reduce the magnitude of the contact stresses by 13.1-15.4%, and this indicates the feasibility of using the design proposed by the authors in gear couplings.

References:

1.  Popov A.P., Savenkov O.I. Experimental research of the load-carrying ability of gear couplings. Vestnik Inzhenernoy Akademii Ukrainy, 2010, nos. 3–4, pp. 203–209. (In Russian).

2.  Popov A.P., Savenkov O.I. Contact strength of gear couplings with longitudinal teeth modification. MOTROL, 2013, vol. 13A, pp. 167–176. (In Russian).

3.  Popov A.P., Mironenko A.I., Savenkov O.I. Contact stiffness of gear transmissions in view of the effect of tooth misalignment. Vestnik Natsionalnogo Tekhnicheskogo Universiteta “Kharkovskiy Politekhnicheskiy Institut”. Seriya: Problemy Mekhanicheskogo Privoda. – 2016. – No. 23 (1195). – P. 121–125. (In Russian).

4.  Borodin A.V. Taruta D.V., Velgodskaya T.V. Increase bearing ability of tooth gearing of a traction reducer of the locomotive. Izvestiya Transsiba, 2010, № 3 (3). – P. 7–12. (In Russian).

5.  Gorlenko O.A. Makarov G.N. Increase of wear resistance of spur gears. Izvestiya Moskovskogo Gosudarstvennogo Tekhniheskogo Universiteta, 2014, vol. 2, no. 2 (20), pp. 21–25. (In Russian).

6.  Gorlenko O.A., Makarov G.N., and Shnyrikov I.O. Improving the contact endurance of the teeth of spur cylindrical gears. Trenie Smazka Mash. Mekh., 2014, no. 6, pp. 25–27. (In Russian).

7.  Malinkovich M.D. Study of the process of cylindrical gears engagement. Bull BSTU, 2008, iss. 3 (19), pp. 32–37. (In Russian).

8.  Gorlenko O.A., Shalygin M.G., Makarov G.N. Removing contact of edge of teeth of planetary transmissions. Stroitelnye i Dorozhnye Mashiny, 2017, no. 8, pp. 38–42. (In Russian).

9.  Gorlenko O.A., Shalygin M.G., Makarov G.N. Eliminating Liquid Entrapment between the Teeth of a Gear-Driven Pump. Russian Engineering Research, 2018, vol. 38, no. 7, pp. 499–502. DOI: 10.3103/S1068798X18070079.

Article reference