Composite Vibration:Vibration of the vibrating body is generated by two sets of excitation systems, and its vibration form is called composite vibration. Generally, there are two types: dual-frequency composite and dual-amplitude composite. Some special-performance vibratory screening equipment uses two vibratory motors of different models and speeds, installed at the feed end and discharge end of the screening machine respectively. This causes the feed end to exhibit large-amplitude, low-frequency vibration, while the discharge end exhibits small-amplitude, high-frequency vibration. The two vibrations overlap in the middle of the screening machine, making the screening machine more effective.
Rotary Vibration:When the projection of the vibration trajectory of the vibrating body onto the horizontal plane is a circle or ellipse, its vibration form is called rotary vibration. Rotary vibration can be further divided into three types: planar rotary vibration, vortex vibration, and compound rotary vibration. When the projection of the vibration trajectory of a vibrating body onto a vertical plane is a horizontal straight line, its vibration mode is called planar rotary vibration; when the projection is an oblique straight line, it is called vortex vibration; and when it is a circle or ellipse, it is called complex rotary vibration. Rotary vibration is typically produced by vibrating machinery excited by a vertical vibratory motor, and its form depends on the angle between the excitation blocks at both ends of the motor. Alternatively, two horizontal vibratory motors can be mounted on either side of the vibrating equipment, with their shafts at a predetermined angle, which will also produce rotary vibration.
Circular or Elliptical Vibration: When the projection of the vibration trajectory of a vibrating body onto a horizontal plane is a straight line, while its projection onto a vertical plane is a circle or ellipse, its vibration mode is called circular or elliptical vibration. This type of motion is typically produced by mounting a single vibratory motor on the vibrating machinery body. Circular or elliptical vibration occurs in a plane perpendicular to the vibratory motor's shaft, and its form depends on the relative position of the vibratory motor and the overall machine's center of gravity.
Linear vibration: When the projection of the vibration trajectory of a vibrating body onto both the horizontal and vertical planes is a straight line, its vibration mode is called linear vibration. If two identical vibratory motors are installed on the body of a vibrating machine, with the two shafts parallel to each other, and the motors rotate in opposite directions during operation, the two motors will inevitably operate synchronously, and the machine body will produce linear vibration.
