A drive device for a vertical mill

Abstract

The invention discloses a driving device for a vertical mill, comprising a motor assembly, a reducer assembly, a ventilation assembly, a front end cover, a rear end cover, and an annular cover. The motor assembly and the reducer assembly are arranged in the cavity in the middle of the annular cover, and the ventilation assembly is arranged in the inner wall of the annular cover. It is divided into a first cavity and a second cavity, the reducer assembly is installed inside the first cavity, and the motor assembly is installed inside the second cavity. The correction component of the present invention corrects the eccentricity caused by the uneven density of the rotating iron core through the centrifugal force difference, which greatly reduces the rotation loss of the device and improves the energy conversion rate. The speed reducer assembly of the present invention is started by reducing the speed of the vertical mill, so as to avoid excessive load on the transmission bearing and prolong the service life of the equipment.

Description

technical field [0001] The invention relates to the technical field of driving devices, in particular to a driving device for a vertical mill. Background technique [0002] Due to the large starting load of vertical mills, the drive device has always been the core component of the equipment. The traditional vertical mill drive device is generally driven by a three-phase asynchronous motor with a planetary gear reducer. The orthogonal shaft bevel gear pair of the asynchronous motor gearbox not only needs to complete the torque transmission, but also complete the torque amplification, and at the same time complete the torque reversal, which is the biggest "pain point" of the conventional drive system. Faults such as pitting corrosion and even shaft breakage are inevitable. The starting process of the vertical mill is the maximum load point. The conventional driving device will cause the transmission bearing to be subjected to a great load during the starting process, thereby...

AI Technical Summary

Problems solved by technology

The start-up process of the vertical mill is the point with the largest load. The conventional drive device will cause the transmission bearing to be subjected to a huge load during the start-up process, which will damage the drive shaft. On the other hand, the rotor cannot run at full speed during the start-up process. More magnetic loss will be generated, which will increase the heat generation of the motor

The motor rotor inevitably has errors during the machining process. Some motor rotors will have a problem of excessive local density. This problem will cause the motor rotor to be eccentric when it rotates, which will lead to increased vibration during the motor rotation process and shortened service life.

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