Mill drive system

摘要

A mill drive system includes a gear unit which is arrangeable below a grinding plate and has at least one planetary and/or spur gear stage, having a vertical shaft position. The mill drive system includes an electric motor, integrated into a housing of the gear unit and having a rotor and a stator which have vertically extending axes. Upper and lower bearing covers each including bearing seats for rotor shaft bearing are mounted on opposite end faces on the rotor and stator and are connected via a stator carrier, which has cooling fins on the outer periphery. A collecting tray for coolant is formed between the lower bearing cover and a base part of the housing. The motor is supported via a flange which is formed on an inner face of the housing and extends radially inward and to which the lower and/or upper bearing covers are connected.

主权项

1. A mill drive system comprising:
a gear unit having a vertical shaft position and including at least one planetary and/or spur gear stage, said gear unit being be arrangeable below a grinding plate; an electric motor having a rotor and a stator and being integrated into a housing of the gear unit, wherein the rotor and the stator have a vertically extending axis; an upper bearing cover and a lower bearing cover, said upper and lower bearing covers being mounted on opposing end face sides on the rotor and the stator, and comprising bearing seats for rotor shaft bearings; a stator carrier connecting the upper bearing cover with the lower bearing cover, said stator carrier having an outer circumference provided with cooling fins, wherein nozzles mounted on the housing and/or embedded into the housing are directable onto the cooling fins; a collecting tray for coolant formed between the lower bearing cover and a base part of the housing; and a flange formed on an inner side of the housing and extending radially inwards, said lower and/or upper bearing cover being connected to the flange, said motor being supported via the flange.