Gearbox 2M55

FSBEI HE "Izhegtu named after M.T. Kalashnikov"
Department of "Machine Engineering and Instrument Engineering"
on the subject: "Metal-Cutting Machines"
on the topic: "Develop the main drive for a radial drilling machine"
2013

1. Initial data: machine accuracy class N; maximum processing diameter 50 mm; calculate the main drive and design a gearbox with automatic frequency regulation. The course project must include a number of technical requirements ensuring that the temperature of the oil in the housing of the unit under load does not exceed 50ºC.
Initial data for a similar machine 2M55: number of rotation frequencies Z = 20; denominator of the geometric progression φ = 1.26; minimum spindle speed nmin = 20 rpm; motor speed nм = 1445 rpm; motor power Nм = 5.5 kW (at a speed of 1445 rpm).