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Safe vibration-absorbing resonant screen

A resonant screen, safe technology, applied in the direction of filter screen, solid separation, grille, etc., can solve the problems of the amplitude change of the screening machine, the short life of the vibration motor, and the high requirements for manufacturing and assembly, so as to achieve good screening effect and low power consumption. Small and productive effect

Inactive Publication Date: 2016-09-28
GUANGXI ANN SCHORR SECURITY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after using it for a period of time, the applicant found that the current resonant screen still has some defects: 1. High manufacturing and assembly requirements; difficult operation and debugging; expensive elastic elements; greatly affected by changes in feeding materials, Therefore, it has been greatly restricted in actual use, so it has not been widely promoted in mineral processing plants.
2. The vibrating screen works under conditions close to resonance, and when the vibrating screen works in the resonance area, when its operating frequency changes slightly, the amplitude of the screening machine will be greatly changed, and the work of the screening machine is unstable at this time. of
3. The power drive part of the vibrating screen is connected with the working part of the screen box. The vibration motor and the screen box will vibrate during operation, resulting in a short life of the vibration motor

Method used

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  • Safe vibration-absorbing resonant screen

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Such as Figure 1~2 As shown, it is a safe vibration-absorbing resonant screen of the present invention, including a spring assembly 1, a channel steel 2, a steel wire sling 3, a vibrating motor 4, a spring 5, a motor frame 6, a boom 7, a screen box 8 and a screen 9. The power driving part and the working part of the screen box are separated by an elastic body. The vibration motor 4 is installed on the motor frame 6. The channel steel 2 is placed above the motor frame 6. The channel steel 2 is provided with a spring assembly 1 , the channel steel 2 and the motor frame 6 are connected by a steel wire sling 3, the two ends of the motor frame 6 are provided with springs 5, the screen box 8 is arranged under the motor frame 6, and the screen box 8 passes through the suspension rod 7 Connect with the springs 5 ​​at both ends of the motor frame 6, the spring assembly 1 includes a spring, a pressure plate and a “U” shaped rod, the pressure plate is placed on the top of the spr...

Embodiment 2

[0050] Such as Figure 3-4As shown, the safe vibration-absorbing resonant screen of the present invention adopts a structure in which the power drive part and the working part of the screen box are separated by an elastic body. connection, a spring is provided between the boom and the motor frame, a spring 5 is also provided between the motor frame and the base, a screen 9 is provided in the screen box 8, and the spring is a leaf spring. Described vibrating motor 4 is two, and the rotation direction of two vibrating motors 4 is reverse operation simultaneously, and the frequency of revolution of described two vibrating motors 4 is equal to the natural frequency when screen box 8 vibrates alone.

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Abstract

The invention discloses a secure vibration-absorbing resonance screen. The secure vibration-absorbing resonance screen comprises a spring component, a steel channel, a steel wire lifting rope, a vibration motor, a motor frame and a screen box. The secure vibration-absorbing resonance screen is characterized by adopting a structure that a power driving part is separated from the working part of the screen box through an elastic body. The vibration motor is installed on the motor frame, the steel channel is arranged at the upper side of the motor frame, the spring component is arranged on the steel channel, the steel channel is connected with the motor frame through the steel wire lifting rope, springs are arranged on the two ends of the motor frame, the screen box is arranged at the lower side of the motor frame, and the screen box is connected with the springs arranged on the two ends of the motor frame through suspenders. The secure vibration-absorbing resonance screen is widely applied to screening materials with different particle sizes, and has the characteristics of safety, high efficiency and energy conservation.

Description

technical field [0001] The invention belongs to the technical field of vibrating machinery, and in particular relates to a safe, efficient and energy-saving resonant screen which is widely used in screening materials of various particle sizes. Background technique [0002] The vibrating screen is a vibrating screen whose vibration frequency of the screen surface is consistent with the natural vibration frequency of the screen surface (including the loaded material). The rotation of the eccentric block (or shaft) drives the coil spring to make the screening machine vibrate and work. Its characteristic is that the natural frequency of the vibration system is close to the forced vibration frequency of the exciter, and the sieve works in a state close to resonance. Due to the principle of resonance, in theory, only enough energy to overcome the internal resistance of the elastic body (spring or rubber) can make the vibration continue, so the power consumption is small. Using thi...

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 冯学董张意何健阮愉华刘志芬苏刚何娟霞陈立健李新星冯秀光詹永光
Owner GUANGXI ANN SCHORR SECURITY TECH