Vibrating equal-thickness flip-flow screen for multi-plastid activation

Abstract

The invention discloses a vibrating equal-thickness flip-flow screen for multi-plastid activation. The flip-flow screen comprises an outer screen frame, a flip-flow body, an excitation device, a supporting frame, a T-shaped vibration isolation spring device and a screen plate, and the flip-flow body is fixedly arranged between two side plates of the outer screen frame to form a screen box; the excitation device is connected to the side face of the screen box through a main vibration spring; and the supporting frame and the outer screen frame are connected through the T-shaped vibration isolation spring device. The vibrating equal-thickness flip-flow screen for multi-plastid activation has the advantage that multi-plastid transverse vibration (which is beneficial to activating materials), equal-thickness screening and screen surface relaxation are achieved. The flip-flow screen only has transverse shearing dynamic load to the ground, a special vibration mode has a transverse activationeffect on materials, and the screening efficiency is high. The flip-flow screen surface makes the materials jump, and the hole blocking phenomenon is effectively eliminated. A motor is connected witha vibrating plastid small in amplitude, and the function of protecting the motor is achieved. The vibrating plastid and the screen box are flexibly connected through a plurality of sets of springs, sothat the stress of the whole structure is more reasonable.

Description

technical field [0001] The invention relates to the technical field of screening machinery, in particular to a thick-relaxation sieve with multi-body activation vibration. Background technique [0002] At present, the existing relaxation sieve models include Liwell type relaxation sieve and vibrating relaxation sieve excited by an exciter. Analyzing the above two kinds of relaxation sieves, they have the following different shortcomings respectively. The Liwell-type relaxation screen adopts a longer crank in the design of the transmission shaft, and adopts an elastic leaf spring as a support in the supporting structure. This design brings some problems objectively. One is that the leaf spring does periodic swing for a long time. It is easy to cause the fatigue damage of the plate spring, which reduces the reliability of the sieve. Second, the entire inner and outer screen frames of the relaxation sieve do approximate reciprocating periodic linear motion, and in addition to ...

AI Technical Summary

Problems solved by technology

[0003] In summary, the existing relaxation screens have disadvantages such as high driving power, high manufacturing cost of parts (the leaf springs of Liwell type relaxation screens are expensive), and large foundation dynamic loads.

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