DOI 10.36461/NP.2024.69.1.008
UDC 633.63:631.171

DESIGN, JUSTIFICATION OF GEOMETRIC AND STRENGTH PARAMETERS OF A HELICAL GEARBOX
V.A. Ovtov, Candidate of Engineering Sciences, Associate Professor; A.V. Polikanov, Candidate of Engineering Sciences, Associate Professor; A.V. Yashin, Candidate of Engineering Sciences, Associate Professor; A.A. Orekhov, Candidate of Engineering Sciences, Associate Professor;
Students: D.V. Grishin, V.K. Usankin
Penza State Agrarian University, 440014, Penza, Botanicheskaya str. 30, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract. Currently, there is a tendency to use more compact and lightweight gearboxes, which helps to increase the productivity of agricultural machines and units. Since almost all agricultural machinery is equipped with drive mechanisms, gearboxes play an important role here. Cylindrical, conical and worm gearboxes are widely used in agricultural machinery. Gearboxes ensure the operation of units of a wide variety of agricultural machinery from small seeders to large sowing units. The right choice and timely maintenance of gearboxes will ensure a long service life of agricultural machinery with the necessary productivity.
The article proposes the design of a helical gearbox with a ratio of U = 2, at a right angle of inclination of the drive gear shaft teeth b₁ = 59°36' and the number of teeth is Z₁; at the right angle of inclination of the driven gear shaft teeth b₂ = 30°24' and the number of teeth is Z₂. The axial distance aw is determined for a normal module mn, equal to 2.25, the number of teeth of the gear Z₁ = 8 and of the wheel Z₂= 16, and the geometric parameters of the gear and wheel. Verification calculations were carried out on contact stresses, bending stresses of gear teeth and wheels. A designed three-dimensional model of a gear-screw gearbox is presented, and its operation is described.
Keywords: strength, normal module, gearbox, modeling, gear, gear wheel.

Publication information View article