Definition of the optimal kinematic modes of the electric drive of the power take-off shaft switching

The efficiency of using tractor units with active working tools depends on the functioning of the tractor power take-off shaft. Among the tractor fleet of wheeled tractors engaged in crop production, the main volume is occupied by tractors produced by the Minsk tractor plant. In the vast majority of cases, the PTO shaft is a planetary reduction gear. The power take-off shaft is activated by braking the drum connected to the solar gear. Braking is carried out by a tape tool with friction pads. Due to the design features of the switching mechanism, the braking of the drum occurs uneven, which leads to an increase in the number of revolutions of the drum during switching on. As a result, the friction linings of the tape tool are significantly worn. Since the condition of the brake tape tool is not monitored, regular slipping of the switching drum significantly reduces the service life of the tape tool. To increase the service life of the brake tape tool and improve the efficiency of the power take-off shaft, it is suggested to use electromagnets, pressing the tape to the drum, to turn on the drive...