Anti-resonance vibrating screen

Abstract

The invention discloses an anti-resonance vibrating screen, and relates to the technical field of material screening equipment. The anti-resonance vibrating screen comprises a screen box and an excitation body. The excitation body is provided with an excitation source used for driving the screen box to vibrate. The screen box and the excitation body are connected through a master vibration spring. At least one screen box master vibration cross beam is arranged on a base plate of the screen box in the length direction of the screen box. The excitation body is provided with excitation body master vibration cross beams matched with the screen box master vibration cross beams. Each set of screen box master vibration cross beam and excitation body master vibration cross beam which are matched with each other are connected through at least one master vibration spring assembly in the width direction of the screen box. The deformation direction of the master vibration spring assemblies is consistent with the vibration direction of the screen box.

Description

technical field [0001] The invention relates to the technical field of material screening equipment, in particular to an anti-resonance vibrating screen. Background technique [0002] Screening equipment is an important equipment necessary for mining, mineral processing, coal preparation, building materials, thermal power plants, chemical industry and other industrial sectors. Its performance will directly affect the production capacity and technical and economic indicators of these industries. [0003] The patent application number 200810012489.9 discloses an anti-resonance vibrating screen, which includes an upper plastid-sieve box, a lower plastid-exciting body, a main vibration spring, a vibration isolation spring, and a vibration exciter, and the screen box passes through the main vibration spring. It is connected with the vibration exciter, the vibration exciter is located on the foundation through the vibration isolation spring, the vibration exciter is arranged on th...

AI Technical Summary

Problems solved by technology

The above arrangement has the following defects: 1. The two side plates of the screen box are connected to the excitation body through the main vibration spring. In order to better ensure the effective vibration of the screen box, multiple groups of main Vibration spring, the two side plates of the screen box are concentrated in force, the exciting force is only transmitted from the two side plates of the screen box to the screen box, the service life of the side plates of the screen box and the main vibration spring will be reduced, in order to strengthen the screen box The service life of the screen box will increase the quality and rigidity of the screen box beam connecting the two side plates, which will cause the anti-resonance vibrating screen to have a large vibration quality, a large excitation force and a large energy consumption when vibrating; 2. There are multiple sets of main vibration springs connected to the two side plates of the screen box. The main vibration springs are inconvenient to arrange, which is not conducive to the large-scale development of the screen box in the width direction, and the multi-channel screening of the anti-resonance vibrating screen cannot be realized; 3. When the screen box When the box is large, the shape and size of the excitation body and the screen box also need to match, which increases the manufacturing cost

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