A vibration buffer device for rotary vibrating screen

Abstract

The invention discloses a rotary vibration screen resonance buffer device. A protection cover is arranged on the upper portion of a screen machine main body and provided with a material inlet. A screen frame is arranged in the screen machine main body. A discharging outlet is formed in the side wall of the screen machine main body. A vibration motor fixedly connected with the screen frame is arranged in a screen machine bottom frame at the bottom of the screen machine main body. An upper annular electromagnet is fixedly and additionally arranged in the position, close to an upper flail block, of the outer edge of an upper end cover of the vibration motor. A lower annular electromagnet is fixedly and additionally arranged in the position, close to a lower flail block, of the outer edge of a lower end cover of the vibration motor. The vibration motor, the upper annular electromagnet and the lower annular electromagnet are electrically connected with a controller through circuits. According to the rotary vibration screen resonance buffer device, severe resonance shaking generated by the vibration motor after the device is stopped can be effectively avoided, the process of gradual decrease of the motor rotation speed when a screen machine is stopped is shortened, the machine body resonance generation time is shortened, and the service life of a rotary vibration screen is prolonged.

Description

technical field [0001] The invention belongs to the technical field of rotary vibrating screens, and in particular relates to a resonance buffer device for rotary vibrating screens. Background technique [0002] When the rotary screen is working, the vibrating motor needs to rotate and vibrate continuously. After the screening work is completed, the vibrating motor will produce severe resonance shaking when the power is cut off. The resonance shaking time of the body is longer and the resonance frequency is higher. The service life of multiple components increases the production cost of screening to a certain extent. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a vibration buffering device for a rotary vibrating screen with simple structure, reasonable design and the ability to effectively shorten the resonance shaking time of the vibration motor after the power supply is cut off. [0004] In order to solve t...

AI Technical Summary

Problems solved by technology

[0002] When the rotary screen is working, the vibrating motor needs to rotate and vibrate continuously. After the screening work is completed, the vibrating motor will produce severe resonance shaking when the power is cut off. The resonance shaking time of the body is longer and the resonance frequency is higher. The service life of multiple components increases the production cost of screening to a certain extent

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