Vibration screening machine

Abstract

The invention discloses a vibration screening machine. The vibration screening machine comprises a base, a hopper is connected to the top of the base through a vertical rod, a mounting frame is arranged above the hopper, and the inner wall of the mounting frame is connected with a screen and rotationally connected with a rotating shaft. The vibration screening machine is simple in structure, a motor drives a rotating plate to rotate, the rotating plate drives a swinging rod to swing through a second fixing pin, then the swinging rod drives a sliding plate to move left and right through a firstfixing pin, the sliding plate drives the mounting frame and the screen to move left and right through supporting rods so that materials on the screen can shake, the screening efficiency is improved accordingly, idler wheels make contact with arc blocks intermittently when the sliding plate moves so that vertical vibration of the sliding plate can be achieved, vibration of the mounting frame is achieved accordingly, and the screening efficiency is further improved; meanwhile, when the mounting frame moves, a gear and a rack are engaged, stirring rods are driven by the rotating shaft to rotate,the materials can not only be spread but also be heated for moisture removal, and by means of springs, the effect that the gear is engaged with the rack all the time when the mounting frame is vibrated up and down can be ensured.

Description

Technical field [0001] The invention relates to the technical field of screening machines, in particular to a vibration screening machine. Background technique [0002] The screening machine works by using the reciprocating vibration generated by the vibration of the vibrator. The upper rotating weight of the vibrator makes the screen surface vibrate in plane, while the lower rotating weight makes the screen surface vibrate the cone surface. Its combined effect The effect of this is to produce double-rotating vibration on the screen surface. The vibration trajectory is a complex spatial curve. The curve is projected as a circle on the horizontal plane, while the projection on the vertical plane is an ellipse. Adjusting the excitation force of the upper and lower rotating weights can change the amplitude and adjust The spatial phase angle of the upper and lower heavy hammers can change the curve shape of the screen surface movement trajectory and change the movement trajectory of...

AI Technical Summary

Problems solved by technology

Its vibration trajectory is a complex spatial curve, which is projected as a circle on the horizontal plane and an ellipse on the vertical plane. Adjusting the excitation force of the upper and lower rotating weights can change the amplitude and adjust The spatial phase angle of the upper and lower weights can change the curve shape of the motion trajectory of the screen surface and change the motion trajectory of the material on the screen surface; the existing screening machines have single functions, low screening efficiency, and poor practicability

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