Elliptical track vibrating screen

Abstract

The invention relates to an elliptical track vibrating screen, which belongs to the field of vibratory screening machines, can ensure that material particles move in an elliptical track on a screen surface, solve the problem of mesh blockage caused by materials which are difficult to screen or critical particle materials, and improve the sieving rate of the vibrating screen. The vibrating screen mainly comprises a screen frame, the screen surface, a double-shaft gear forced-synchronization exciter, a single-shaft exciter, a vibration reduction support device and a motor transmission device, wherein the double-shaft gear forced-synchronization exciter is arranged on a driving girder of the screen frame to ensure that a screen box vibrates in a linear track according to a 30 to 60 DEG vibration direction angle; an axis of the single-shaft exciter traverses the screen frame and is arranged under two lateral plates of the screen frame or the driving girder to ensure that the screen box vibrates in a circular track; and combination of vibration of the double-shaft gear forced-synchronization exciter and the single-shaft exciter drives the screen box to vibrate in the elliptical track in a longitudinal plane. The elliptical track vibrating screen has the characteristics of compact structure, steady operation, high sieving efficiency and the like, is convenient to adjust, and is suitable for screening the materials which are difficult to screen in various industries.

Description

technical field [0001] The invention belongs to the field of vibrating screening machinery, and mainly relates to an elliptical track vibrating screen for sieving difficult-to-sieve materials or solving the problem of critical particles stuck in holes on the sieve surface. Background technique [0002] In the existing linear vibrating screen and circular vibrating screen, the projecting angle of the linear vibrating screen is single, and the critical particles in the material are easy to form stuck holes on the screen. The conveying capacity is poor, and only the elliptical orbit vibrating screen has the advantages of no material blocking and strong conveying capacity at the same time. In the existing three-axis elliptical vibrating screen, the elliptical trajectory is realized by the forced synchronous transmission of the three axes through gears. The structure is complex, the manufacturing cost is high, the amplitude adjustment is inconvenient, and the failure rate during ...

AI Technical Summary

Problems solved by technology

[0002] In the existing linear vibrating screen and circular vibrating screen, the projecting angle of the linear vibrating screen is single, and the critical particles in the material are easy to form stuck holes on the screen. Only the elliptical track vibrating screen has the advantages of no material blocking and strong conveying capacity.

In the existing three-axis elliptical vibrating screen, the elliptical trajectory is realized by the forced synchronous transmission of the three axes through the gears. The structure is complex, the manufacturing cost is high, the amplitude adjustment is inconvenient, and the failure rate during operation is relatively high.

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