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Elliptic or circular motion antiresonance vibrating screen

A circular motion, anti-resonance technology, applied in the direction of filter screen, solid separation, grid, etc., to achieve the effect of motor power reduction

Active Publication Date: 2013-01-16
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current anti-resonance vibrating screens use leaf springs, helical springs or shear rubber springs, and the screen box can only move in a straight line. Resonance vibrating screen is not possible

Method used

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  • Elliptic or circular motion antiresonance vibrating screen
  • Elliptic or circular motion antiresonance vibrating screen
  • Elliptic or circular motion antiresonance vibrating screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The present invention is applied to a thick sieve such as a large double-axis elliptical or circular motion anti-resonance, and the structure is as follows Figure 8 with Figure 9 As shown, the screen box 1, the upper plastid, is the working part of the anti-resonance vibrating screen, and the exciter 2, the lower plastid, is the driving part of the anti-resonance vibrating screen. The box 1 and the excitation body 2 are connected by the main vibration spring 3, the excitation body 2 is seated on the foundation 6 through the vibration isolation spring 5, the motor 7 is installed on the motor bracket 9, and is connected to the vibration exciter 4 through the transmission shaft 8 connected. In this embodiment, multiple sets of main vibrating springs 3 are installed on both sides of the screen box 1. The main vibrating springs 3 are circular rubber springs with equal rigidity in all directions, and the biaxial vibrator rotates in the same direction of rotation.

Embodiment 2

[0062] The present invention is applied to a large three-axis elliptical motion anti-resonance equal-thickness screen, and the structure is as follows Figure 10 with Figure 12 As shown, different from the large dual-axis elliptical or circular motion anti-resonance equal-thickness screen, the large-scale three-axis elliptical motion anti-resonance equal-thickness screen has three exciter shafts, and the exciter shaft adopts a forced synchronous structure, which can realize two of them. The shafts of the vibrator rotate in the same direction of rotation, and the shaft of the other exciter rotates in the opposite direction to that of the other two shafts of the vibrator. At this time, the trajectory of the anti-resonance vibrating screen is elliptical. Figure 10 Shown is a large three-axis elliptical motion anti-resonance equal-thickness sieve main vibration spring 3 adopts the following Image 6 (a) shows the structure of the circular rubber spring 12 with equal stiffness i...

Embodiment 3

[0064] Figure 11 with Figure 12 Shown is a schematic structural view of the present invention applied to another large-scale three-axis elliptical motion anti-resonance equal-thickness screen 2, and Figure 10 The difference between the vibrating screen is that the anti-resonance vibrating screen uses such as Image 6 (b) shows the square rubber spring 12 with equal stiffness in all directions.

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Abstract

An elliptic or circular motion antiresonance vibrating screen belongs to the technical field of vibrating machines. The vibrating screen comprises a screen box, a vibrating excitation body, a master vibrating spring, a vibrating exciter, an isolation spring, a foundation and a motor, wherein the screen box is an upper plastid; the vibrating excitation body is a lower plastid; the vibrating excitation body is arranged on the foundation by the isolation spring; the screen box is connected with the vibrating excitation body by the master vibrating spring; the vibrating screen is characterized in that the vibrating exciter is mounted on the vibrating excitation body and is of a single-shaft, double-shaft or three-shaft structure; the motor is connected with the vibrating exciter by a transmission shaft; two shafts in the double-shaft structure slew in the same rotation direction; two shafts in the three-shaft structure slew in the same rotation direction, while another shaft slews in the direction opposite to the rotation direction of the two shafts; the master vibrating spring consists of an inner spring seat, an outer spring seat and a spring arranged between the inner spring seat and the outer spring seat; the master vibrating spring has the same rigidity in all directions in a working plane; and the working frequency of the elliptic or circular motion antiresonance vibrating screen is equal to the antiresonance frequency.

Description

technical field [0001] The invention belongs to the technical field of vibration machinery, in particular to an elliptical or circular motion anti-resonance vibrating screen. It is suitable for the classification of raw coal, minerals, sintered ore and other bulk materials. Background technique [0002] Vibrating machinery is a large class of mechanical equipment that uses vibration to complete various processes, such as vibrating conveyors, vibrating screens, vibrating dryers, vibrating road rollers, etc. There are many types of traditional vibrating screens, and there are coal classification vibrating screens according to their uses. , ore grading vibrating screen, cold ore sieve, hot ore sieve, etc.; according to the screening principle, there are probability sieve, equal thickness sieve, probability equal thickness sieve, etc.; according to the driving principle, there are elastic connecting rod type, electromagnetic type, inertial type , pneumatic and hydraulic methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/28B07B1/42
Inventor 刘杰刘劲涛戴丽刘宏峰
Owner NORTHEASTERN UNIV
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