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Three dimensional (3D) vibration device with accurately controlled amplitude and frequency and manufacture method thereof

A technology of vibration equipment and frequency, which is applied in the direction of fluid using vibration, etc., can solve the problems of limited high density, poor repeatability, complex equipment, etc., and achieve the effect of increasing loose packing density, convenient replacement, and improving performance

Active Publication Date: 2015-05-13
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can break through the bottleneck of 1D vibration to obtain high density to a certain extent, the high density obtained is still limited, and it can be seen that both the control of vibration frequency and amplitude are qualitative, that is, the experimental results are reliable. poor repeatability
The same is true of other existing 3D vibration equipment, and some of them still use electromagnetic vibration, the equipment is complex, the range of experimental parameters is narrow, and the price is expensive

Method used

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  • Three dimensional (3D) vibration device with accurately controlled amplitude and frequency and manufacture method thereof
  • Three dimensional (3D) vibration device with accurately controlled amplitude and frequency and manufacture method thereof
  • Three dimensional (3D) vibration device with accurately controlled amplitude and frequency and manufacture method thereof

Examples

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Effect test

example 1

[0043] Using the equipment of the present invention, by turning off the vibration in the horizontal direction (that is, the X and Y directions), and only turning on the vibration in the vertical Z direction, the physical experiment of the stacking and densification of single-size glass spheres under 1D vibration conditions is realized to verify the process parameters. Such as amplitude A, vibration frequency ω, vibration intensity Γ (defined as Aω 2 / g) and the size of the container on the impact of the particle packing density, it was found that the packing density of the particles first increases with the increase of the amplitude A or the vibration frequency ω, and after reaching the maximum value, then with the further increase of A or ω increases and decreases, that is, there is an optimal A and ω to achieve the closest packing of particles. Although the vibration intensity Γ reflects the joint effect of A and ω, and has the same influence trend as A or ω, it is found tha...

example 2

[0047] Corresponding to 1D vibration, using the invented equipment, we have also realized the packing densification of single-size glass spheres under 3D vibration conditions, in addition to studying the influence of amplitude A, vibration frequency ω, vibration intensity Γ, and container size In addition, we also systematically studied the impact of adding particle batches each time during the batch feeding process, the characterization of the closest packing structure and the analysis of the densification mechanism. Figure 13 The packing density of particles in an infinite container under different vibration conditions is given. It can be seen that the maximum packing density that can be obtained is about 0.74 by controlling the experimental conditions reasonably. About four hundred years ago, Kepler predicted that the maximum packing density of spheres of the same size in the universe is 0.74, which is the packing density of perfect face-centered cubic FCC or close-packed h...

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Abstract

Provided is a three dimensional (3D) vibration device with accurately controlled amplitude and frequency and a manufacture method thereof. The 3D vibration device comprises a frame, a vibrating table, motors, a container and an industrial personal computer, wherein the vibrating table, the motors, the container and the industrial personal computer are arranged on the frame. The 3D vibration device is characterized in that guide plates are overlapped on the vibrating table, the container is placed on the guide plates, a slider and guide rails in the X, Y and Z directions are all arranged between a container fixed plate and the guide plates, the three motors for configuring a variable-frequency governor are distributed at different positions of the frame, output shafts of the motors are connected with two horizontal sinking bars in the X direction and the Y direction on a middle layer and a lower layer and a lower mandril in the Z direction on an upper layer through eccentric wheel groups with different eccentricity, the two horizontal sinking bars configures restorers respectively, and the horizontal sinking bars and the lower mandril are all contacted with respective bearings. The program uses the VC.2003 to achieve vibration control of an upper computer interface, one motor switch is arranged in a programmable logic controller (PLC) for each module and can be displayed on the interface, programs in each module can be changed through the interface, and a control program provides an automatic executive functions for equipment. The 3D vibration device and the manufacture method are an effective method for improving apparent density during manufacturing, and are important in improving performance of granular material products.

Description

technical field [0001] The invention relates to physical experiment equipment, a 3D vibration equipment with precise and controllable amplitude and frequency, which is used for accumulation densification, fluidization, mixing and separation of bulk particles in the fields of metallurgy, materials and chemical industry under vibration conditions and research on segregation suppression. Background technique [0002] An effective way to realize the accumulation densification, fluidization, mixing and separation of bulk particles in the fields of metallurgy, materials and chemical industry is to use vibration, especially for the densification of particle accumulation. Vibration can make particle accumulation from For the transition from loose to dense, the vibration equipment currently available at home and abroad mainly realizes vibration in the one-dimensional (1D) vertical direction, and this vibration equipment usually has a limited range to increase the particle packing den...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B3/00
Inventor 安希忠冯百鸣李长兴李超黄飞邢志涛
Owner NORTHEASTERN UNIV LIAONING