Permanent magnet synchronous motor direct driven energy-saving ball mill

Abstract

The invention discloses a permanent magnet synchronous motor direct driven energy-saving ball mill. The permanent magnet synchronous motor direct driven energy-saving ball mill comprises a rotating drum, wherein a feeding end and a discharge end are respectively arranged at the two ends of the rotating drum; the rotating drum is arranged inside sliding bearings in a sleeving manner; the sliding bearings are arranged on bearing support frames; a ring motor sleeves the surface of the rotating drum; the ring motor is arranged on a motor bracket; the ring motor comprises a motor shell, a stator and a rotor; the motor shell is fixed to the motor bracket; a stator iron core and a stator winding are arranged inside the stator; the stator is fixedly arranged inside the motor shell; the rotor is a permanent magnet magnetic pole fixedly connected with a magnetic pole bracket; and the magnetic pole bracket is fixedly arranged on an outer shell of the rotating drum. According to the permanent magnet synchronous motor direct driven energy-saving ball mill, the permanent magnet magnetic pole is directly mounted on the surface of the rotating drum, the ring motor directly drives the rotating drum, a complex transmission mechanism is avoided, the operation is more stable, transmission loss is avoided, the floor space is smaller, one workshop can be equipped with more ball mills, the production efficiency is improved, and energy conservation and emission reduction are facilitated.

Description

technical field [0001] The invention relates to the field of material crushing mechanical equipment, specifically refers to a permanent magnet synchronous ring motor made of permanent magnet poles installed on the surface of the drum, an annular stator core and windings, directly driving the ball mill to drive the permanent magnet poles on the drum . Background technique [0002] The ball mill is a kind of equipment for crushing materials. Its basic principle is to use the rotating force to lift the steel balls in the cylinder to a certain height and drop them on the materials. The materials are crushed by the mutual contact between the steel balls and the materials. [0003] Existing ball mills need to be equipped with a cumbersome transmission mechanism. The output shaft of the motor drives the rotary shaft of the drum to rotate through the coupling. Since the motor and the coupling need to occupy a certain additional area, the existing ball mill occupies a large area. Wh...

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Problems solved by technology

[0003] The existing ball mill needs to be equipped with a cumbersome transmission mechanism. The output shaft of the motor drives the rotating shaft of the drum to rotate through the coupling. Since the motor and the coupling need to occupy a certain extra area, the existing ball mill occupies a large area.

When the output shaft of the motor drives the rotary shaft of the drum to rotate through the coupling, the stability of the existing ball mill is not good, the gears are easy to be damaged, and the maintenance is frequent

More importantly, the transmission mechanism will suffer loss during operation, and the efficiency will decrease

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