The working principle of rotary vibrating screen

The three-dimensional rotary vibrating screen is a kind of special vibrating screen, it has many special workng principles.

The three-dimensional rotary vibrating screen uses a vertical motor as the excitation source. The upper and lower ends of the motor are equipped with eccentric weights to convert the rotating motion of the motor into a horizontal, vertical, and inclined three-dimensional motion, and then transfer this motion to The screen surface makes the material expand and involute on the screen surface, so this series of vibrating screens are called rotary vibrating screens. Rotary vibrating screen has the advantages of long material running trajectory and high screen surface utilization. Adjusting the phase angle of the heavy hammers at the upper and lower ends can change the trajectory of the material on the screen surface. It can be used for fine screening and probability screening. Grading.

After the rotary vibrating screen is started, its power device, namely the eccentric masses with different phases at the upper and lower ends of the vibrating motor, generates a composite inertial force due to the high-speed placement. This inertial force forces the vibrating body of the screen machine to make a revolving motion. Continuous reciprocating movement under the action of the ground, drives the screen surface to periodically vibrate, so that the material on the screen surface moves along with the screen box in a directional and active movement, during which the material smaller than the screen surface aperture falls to the lower layer through the screen hole , Becomes the under-screen material, the material larger than the screen surface aperture is discharged from the discharge port after continuous jumping motion, and finally the screening work is completed. The trajectory of the vibrating body of the rotary vibrating screen is a complex three-dimensional curve in space, the projection of this curve on the horizontal plane is a circle, and the projection on two vertical planes is two identical ellipses. In actual application, by adjusting the relative phase of the eccentric blocks at the upper and lower ends of the vibrating motor, the movement trajectory of the material on the screen surface can be changed, so as to achieve different screening purposes.