The eccentric is suspended by the drive belt of the motor, and the connection between it and the bed surface is elastic, so the quality and eccentricity of the eccentric wheel must be adapted to the quality and stroke of the bed surface. When the quality and eccentricity of the eccentric are too small, it will not be able to drive the bed movement due to insufficient functions. Adjusting the degree of compression of the soft spring can adjust the stroke, but this adjustment has a certain limit, and changing the eccentricity can change this limit. The spring headboard has simple structure and large asymmetry, which is especially suitable for the separation of mud ore. When the bed load increases, the stroke of this head will become smaller and even lead to parking.
Gear head (eccentric inertia head) gear head is also called eccentric inertia head, it is composed of a set of eccentric inertia gear, 2 pairs of gears installed in a sealed mailbox, the gear shaft is mounted on the biased block, the transmission motor is installed above the sealed box, through the belt pulley with pinion shaft rotation, and the pinion drive the other 3 gears in turn. The number of teeth and pitch diameter of the big gear is 1 times larger than that of the small gear, and its speed ratio is 2. When the upper and lower gear seats are relative to each other, the component force of the inertial centrifugal force generated by the biased block in the vertical direction is always offset each other, and no exciting force is generated in the vertical direction. In the horizontal direction, when the heavy block on the big gear shaft and the heavy block on the pinion shaft are on both sides of the horizontal direction, the inertial centrifugal force is reduced, and the total inertial centrifugal force is minimum. When the big gear drives half a week, the pinion drives one week accordingly, and when the position of the partial block of the 2 pairs of gear shafts is turned to the same side, the resultant force of the inertial centrifugal force changes from the minimum value to the maximum value, thus producing a differential force in the horizontal direction, making the bed surface move asymmetrical in the horizontal direction. The speed of the big gear determines the stroke of the head. The stroke of the head of the head increases with the increase of the mass or eccentricity of the large gear shaft.
