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Control method of near-resonance vibrating screen machine

A control method and near-resonance technology, applied in chemical instruments and methods, screening, solid separation, etc., can solve the problems of small amplitude, slow screen speed, and single frequency, so as to improve the efficiency of material screening and avoid changing the amplitude , the effect of simple structure

Active Publication Date: 2018-12-25
SUZHOU U P WEAR RESISTANCE COMPOUND MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure is simple but the amplitude is small and the frequency is single, which leads to the slow speed of the screened material passing through the screen and the small output.
The slap vibrating machine has a lot of noise in operation, which is easy to cause hearing damage

Method used

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  • Control method of near-resonance vibrating screen machine
  • Control method of near-resonance vibrating screen machine

Examples

Experimental program
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Effect test

Embodiment 1

[0024] refer to figure 1 As shown, the present embodiment is a control method of a near-resonance type vibrating screen machine. The near-resonance type vibrating screen machine includes a machine base 1, and a driving device and an eccentric block (not shown in the figure) are fixed in the machine base 1. The driving device consists of A control system (not shown in the figure) controls the connection, and a sensor (not shown in the figure) is also arranged in the control system. The driving device in this embodiment is a vibrating motor 11 . A vibrating device is installed on the top of the support 1, and the vibrating device in this embodiment is a spring vibration isolator 2. The near-resonance vibrating screen machine also includes a screen grid 3 installed on the vibrating device. The screen grid 3 is provided with a screen 31. The screen grid 3 has four layers. The gaps of the screens 31 of each layer are different. Make a distinction. A discharge opening 32 is provi...

Embodiment 2

[0027] refer to Figure 1-2 As shown, the control method of the near-resonance vibrating screen machine, the first step: the vibration motor 11 and the screen 31 are separated from the base 1 by the spring isolator 2, and the vibration motor 11 and the screen 31 respectively form an independent vibration system; the second The second step: the control system is turned on, and the vibration motor 11 rotates to drive the eccentric block to vibrate the screen 31; the third step: the screen 31 starts to vibrate, and approaches the operating frequency A of the vibration motor 11 after passing through the resonance point C; the fourth step : After the screen 31 vibrates to the operating frequency A, the material behavior enters a steady state. At this time, the control system starts counting until the set time, the control system cuts off the operating signal for controlling the vibration motor 11, and the screen 31 begins to approach the resonance point C. The amplitude increases, ...

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Abstract

The invention discloses a control method for an approximate resonance type sieve shaker. Through control of a sequence switch, and the screen amplitude is controlled within a certain scope. By means of the control method, the material screening efficiency is improved; a vibration motor runs in an intermittent manner, so that long-time noise is prevented from being generated; and the overall structure is simple, amplitude changing in a complicated manner is avoided, and cost is saved.

Description

technical field [0001] The invention belongs to the technical field of vibrating screen machines, in particular to a control method of a near-resonance type vibrating screen machine. Background technique [0002] The structure of the traditional vibrating screen machine is simple, only relying on the motor to drive the vibration generator of the eccentric hammer to shake the screen fixed on the spring frame to shake and sieve the material. This structure is simple but the amplitude is small and the frequency is single, resulting in a slow speed of the sieved material passing through the screen and a small output. The slapping vibrating screen machine has a lot of noise in operation, which is easy to cause hearing loss. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned technical problems, and provide a control method of a near-resonance vibrating screen machine, so as to improve screening efficiency, save cost and reduce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07B1/40B07B1/42
CPCB07B1/40B07B1/42
Inventor 施志儒
Owner SUZHOU U P WEAR RESISTANCE COMPOUND MATERIALS
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