This paper presents a simulation model of the electric drive of the running gear of a 5VS-15M mine self-propelled wagon (MSPW), developed using the SimulationX software package. The model employs two pole-changing induction motors rated at 55/26 kW. A three-stage distributing gearbox with five gear pairs is connected to the shaft of the induction motor. This unit serves as the main transmission system, distributing the torque to two axles (front and rear wheels). The numbers of teeth in the first and second stage gear pairs of the distributing gearbox are 22 and 31, respectively, while the second and third stage gear pairs have 31 and 38 teeth, respectively. To drive the wheels, a bevel gear set arranged perpendicularly is used. In the bevel gearbox, the numbers of teeth are 11 and 25. A planetary gear train is employed to transmit and modify the torque, with its primary function being torque amplification. The transmission ratio of the planetary gear is 8.25. Using the simulation model, the MSPW with a total mass of 31 tons was investigated under severe mining conditions at mine road slope angles of 0°, 3°, 6°, 9°, 12°, and 15°. It was determined that at these slope angles, the motor torque varies correspondingly as 240, 380, 510, 650, 800, and 950 N·m. For the above-mentioned slope angles, the vehicle speed and tractive force characteristics were analyzed. The MSPW speed ranges from 3 to 3.4 km/h, and the time required to reach this speed (i.e., the transient process duration) is 0.8–2.7 s. During vehicle operation, the tractive force at the driving wheels varies within the range of 23–105 kN.
Keywords
Mine Self-Propelled WagonElectric Drive of the ChassisBunkerOre PassPole-Changeable WindingTransfer GearGear TransmissionBevel Gear TransmissionSimulation ModelTorqueSpeed
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