Gravel vibrating screen in mining

Abstract

The invention provides a gravel vibrating screen in mining. The gravel vibrating screen comprises a rack, a screen frame arranged on the upper side of the rack and a screen mesh installed in the screen frame, wherein a transmission shaft is disposed at the position, remote from an opening end of the screen frame, on the upper side of the screen mesh; one end of the transmission shaft passes through the screen frame and is sleeved with a first bearing; the end, remote from the first bearing, of the transmission shaft passes through the screen frame and is sleeved with a second bearing; a U-shaped frame is disposed on the outer side of the second bearing; a speed reduction motor is installed on the face, back on to the screen frame, of a U-shaped frame; an output end of the speed reduction motor is fixedly connected to the end, close to a second bearing, of the transmission shaft; three arc plates are equidistantly installed on the outer surface of the transmission shaft in an annular manner; and a fixed baffle is disposed at the center of the outer surface of each of the arc plates. In comparison with the prior art, the gravel vibrating screen provided by the invention has the beneficial effects that damage caused by long-term large impact force to the screen mesh can be prevented; the service life of the screen mesh can be prolonged; times for replacement of the screen mesh canbe reduced; and buffering protection effects can be realized.

Description

technical field [0001] The invention relates to a crushed stone vibrating screen for mining, which belongs to the technical field of vibrating screens. Background technique [0002] The vibrating screen uses the principle of vibrating motor excitation to make the material be thrown up on the screen surface, and at the same time move forward in a straight line to achieve the purpose of screening with a reasonably matched screen. At present, when the vibrating screen is used to screen gravel, most of the gravel falls directly on the screen in the vibrating screen, and then the gravel produces an impact on the screen. After a long period of use, the screen is easily damaged, resulting in the use of the screen. The service life is shortened, and the frequent replacement of the screen increases the maintenance cost. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a vibrating screen for crushed st...

AI Technical Summary

Problems solved by technology

At present, when the vibrating screen is used to screen gravel, most of the gravel falls directly on the screen in the vibrating screen, and then the gravel produces an impact on the screen. After a long period of use, the screen is easily damaged, resulting in the use of the screen. Shorter service life and frequent screen replacement increases maintenance costs

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