Ball mill for grinding soft magnetic core

Abstract

The invention relates to the technical field of industrial equipment, and discloses a ball mill for grinding a soft magnetic core. The ball mill comprises a fixing box, a rotating cylinder, a lining,grinding steel balls, an outer gear and a key, wherein the lining is fixedly arranged on the inner wall of the rotating cylinder, the outer gear is fixedly arranged at the bottom of the rotating cylinder in a sleeving mode, the grinding steel balls are movably arranged inside the lining, a bottom support seat is fixedly arranged on the fixing box, and a large thrust bearing is fixedly arranged inside the bottom support seat. Due to the arrangement of the rotating cylinder and a partitioning device, the space inside the rotating cylinder is equally divided, the effective grinding space is further compressed, the impact efficiency between the grinding steel balls and a material is improved, the grinding effect in the area is improved, and the grinding efficiency is improved; and the rotatingcylinder and the partitioning device are rotated in different directions, so that the movement track and the movement speed of the grinding steel balls are increased, the impact times among the grinding steel balls and between the grinding steel balls and the material are increased, and the grinding effect on the material is further improved.

Description

technical field [0001] The invention relates to the technical field of industrial equipment, in particular to a ball mill for soft magnetic core grinding. Background technique [0002] The ball mill is one of the high-fine grinding machines widely used in industrial production. It is the key equipment for crushing the material after it is crushed. The ball mill is composed of a horizontal cylinder, a hollow shaft for feeding and discharging materials, and a grinding head. The cylinder is long The cylinder is equipped with steel balls according to different diameters and certain proportions as the grinding body, and the material is loaded into the cylinder from the hollow shaft at the feed end of the ball mill. When the ball mill cylinder rotates, the grinding body is due to inertia and centrifugal force. The effect of friction makes it attached to the cylinder liner and is taken away by the cylinder. When it is brought to a certain height, it is thrown down due to its own gr...

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Problems solved by technology

[0003] During the use of the ball mill, due to the large diameter of the cylinder, the steel balls in it are distributed in a large range (too many steel balls will easily hinder the rotation of the cylinder), which makes the impact on the materials in the cylinder less efficient, so It takes more time, resulting in higher grinding costs. At the same time, the material after grinding in the cylinder cannot be subdivided, which may easily cause the particle size of the material after grinding to be different, resulting in low product quality. After grinding, it needs to be re-grinded outside the cylinder. Screening, otherwise it will not be able to meet the processing requirements of the subsequent process and increase the cost of screening, especially in the grinding of soft magnetic core materials. When the soft magnetic core is used at high frequency, the particle size range is 0.5 to 5 microns, so The traditional ball mill cannot meet the requirements for grinding soft magnetic core materials

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