Ultrafine grinder

Abstract

The invention discloses an ultrafine grinder in the field of grinding devices. The ultrafine grinder comprises a stand. The stand is provided with a bearing block; the center of the bearing block is provided with a vertical shaft; the stand is also provided with a grinding chamber; a cylindrical gear ring is arranged in the grinding chamber; the inner periphery of the gear ring is provided with a plurality of protruding pointed teeth; the vertical shaft extends into the gear ring from the center of the bottom part of the gear ring; the upper end of the vertical shaft is provided with a hammering cutter disk; the periphery of the hammering cutter disk is provided with a plurality of hammering cutters corresponding to the protruding pointed teeth; a grading mechanism is also arranged above the hammering cutters and the gear ring in the grinding chamber; the stand is fixedly provided with a first motor; the output shaft end of the first motor is in transmission connection with the vertical shaft; the vertical shaft is coaxially arranged in a hollow outer shaft through a bearing; the outer shaft is fixedly arranged on the bearing block through the bearing; the outer shaft is in the transmission connection with the output shaft end of a second motor arranged on the stand; and the upper end of the outer shaft is fixedly connected with the gear ring. When the ultrafine grinder works, the vertical shaft and the outer shaft rotate in opposite directions, and therefore, the efficiency of the grinder can be increased, and moving parts are low in rotate speed, and therefore, mechanical vibration and noise can be reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a pulverizing device, in particular to a superfine pulverizer. Background technique [0002] In the prior art, the structure of the superfine pulverizer used for pulverizing materials mainly includes a frame, on which a vertical shaft is installed through bearing seats and bearings, and a crushing chamber is also arranged on the frame, and a grinding chamber is fixedly installed in the crushing chamber. Cylindrical ring gear, the bottom of the ring gear is closed, there are teeth on the inner circumference of the ring gear, the vertical shaft extends into the ring gear from the center of the bottom of the ring gear, the upper end of the vertical shaft is equipped with a hammer cutter, and the periphery of the hammer cutter corresponds to the teeth A number of hammer knives are installed, and a grading mechanism is provided above the hammer knives and the ring gear in the crushing chamber. A motor is fixed on the frame, and the ...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the crushing efficiency of the pulverizer is related to the speed and tooth shape of the hammer knife. The higher the speed of the hammer knife, the higher the crushing efficiency. However, due to the limitations of mechanical structure, vibration, noise, wear-resistant life and other factors , so that the speed of the hammer knife is limited to a certain extent, and it is difficult to make new breakthroughs

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