Large-sized high-frequency vibrating screen

Abstract

The invention discloses a large-sized high-frequency vibrating screen. A middle plate is arranged in the middle of a cross beam of a screen box with the original width being greater than 2m so as to change the screen box into two screen boxes with equally divided original width; a group of vibration exciters is arranged on the middle plate inside the screen box; a group of vibration exciters is mounted on each of the two sides of the screen box; four bearings are mounted on each group of vibration exciters. Due to equal division of the cross beam, the original length is reduced by a half, so that the problem of easy breakage of the cross beam of a superwide high-frequency screen is solved; the specifications of the bearings are not increased, so that the rotating limit speeds of the bearings can be well adapted; meanwhile, due to increase in the number of the bearings, the total bearing dynamic load value is 1.5 times that of the original eight bearings, so that the problem of a bearing force is solved.

Description

technical field [0001] The invention relates to a vibrating screen, in particular to a large-scale high-frequency vibrating screen. Background technique [0002] Due to the high frequency and high vibration intensity of the high-frequency vibrating screen, the vibration part of the whole screen machine must work for a long time under the vibration intensity of 7 times the acceleration of gravity. Generally, the frequency of the vibrating screen is 900 rpm, and the frequency of the high-frequency vibrating screen is 1460 rpm. Therefore, the width of the screen box generally does not exceed 1800mm. When the width of the screen box reaches 2000mm, it is extremely difficult to manufacture, with high requirements and high risks. Only a few professional manufacturers of vibrating screens at home and abroad can manufacture this kind of screen with a width of 2000mm. High frequency vibrating screen. [0003] However, due to the needs of rapid development of coal washing and process...

AI Technical Summary

Problems solved by technology

[0006] The beneficial effect of the present invention is that: the original length is reduced by half due to the equal division of the beam, which not only solves the problem that the beam of the ultra-wide high-frequency sieve is easy to break, so that the specification of the bearing does not increase, it can well adapt to the limit of the bearing The speed is the condition, and at the same time, due to the increase in the number of bearings, the total dynamic load value is 1.5 times that of the original 8-disc bearings, which solves the problem of bearing capacity