Vibration reducing device, vibration screen and asphalt mixing station

Abstract

The invention relates to a vibration reducing device, a vibration screen and an asphalt mixing station. The vibration reducing device comprises a material holding part (26) and a motion part; bulk materials are filled in the material holding part (26); one end of the motion part is connected with the vibration part, and the other end extends into an inner cavity of the material holding part (26); and the motion part can perform a reciprocating motion in the bulk materials when the vibration amplitude of the vibration part exceeds a preset value, so that the energy generated by vibration is dissipated through friction and collision between the bulk materials and between the motion part and the bulk materials, and the vibration of the vibration part is reduced. The vibration reducing device can effectively reduce the vibration of the vibration part to prolong the service life of equipment of the vibration part, is simple in structure, and can prevent direct acute impact generated in the vibration reducing process.

Description

technical field [0001] The invention relates to the technical field of vibrating screening equipment, in particular to a vibration damping device, a vibrating screen and an asphalt mixing station. Background technique [0002] The asphalt mixing plant is a complete set of equipment that mixes the mixture of coarse aggregate, fine aggregate, filler and asphalt after heating and drying at a certain temperature into a uniform mixture according to the design ratio. It has been widely used in highways, urban roads, docks, Infrastructure such as airports are under construction. [0003] Linear vibrating screens are mostly used for aggregate screening in asphalt mixing plants. The performance of linear vibrating screens directly affects the production quality and production efficiency of asphalt mixing plants. The linear vibrating screen is a non-resonant machine. The working frequency is outside the resonance area of ​​the vibrating screen and is much higher than the resonance fr...

AI Technical Summary

Problems solved by technology

Although this scheme can reduce the excessive amplitude generated in the over-resonance region during the shutdown process of the vibrating screen to a certain extent, but because the motor runs at a relatively high speed when the vibrating screen is working, reverse braking will cause a sharp increase in current and reduce vibration The reliability of the motor, or even burn the motor, and cause a greater impact on the motor and mechanical transmission system, reducing its service life

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