Vibrating screen mechanical structure

The vibrating screen is generally composed of a vibrator, a screen box, a support or suspension device, a transmission device and other parts.
1. Vibrator
There are generally two types of vibrators for single-axis vibrating screens and double-axis vibrating screens according to the eccentric weight configuration.
type. The configuration method of eccentric weight is preferably block eccentric type.
2. Screen box
The screen box is composed of a screen frame, a screen surface and a pressing device. The screen frame is composed of side plates and beams. The screen frame must have sufficient rigidity.
3. Supporting device
There are two types of supporting devices for vibrating screens: hanging type and seat type. Seat type installation is relatively simple, and the installation height is low, generally it should be preferred. The supporting device of the vibrating screen is mainly composed of elastic elements, commonly used are coil springs, leaf springs and rubber springs.
4. Transmission
The vibrating screen usually adopts a V-belt transmission device. The structure of the vibrating screen is simple, and the number of revolutions of the vibrator can be selected arbitrarily, but the belt is easy to slip during operation, which may cause the screen hole to be blocked. Vibrating screens are also directly driven by couplings. The shaft coupling can keep the stable number of revolutions of the vibrator and has a long service life, but it is difficult to adjust the number of revolutions of the vibrator.