What is the frequency of the vibrating feeder?

The frequency ratio of the vibrating feeder, the exciting force and the natural frequency, and the motor vibrating feeder can be simplified into a two-degree-of-freedom two-mass forced vibration system. The vibration frequency, amplitude and exciting force are the key dynamic parameters. The vibrating feeder is generally selected to work in the near-resonance area, and the frequency ratio is 0.80-0.95. is the vibration frequency of the feeder, which is determined by the vibration motor. The domestic vibration motor has four vibration frequencies of 2900, 1440, 940 and 710r/min. The amplitude a of the trough should be determined first according to the nature of the material and the amount of feed. In order to reduce the breakage of material particles, the feeder can choose a higher frequency and a smaller amplitude, and for raw ore feeding, a lower frequency and a larger amplitude can be selected.

The vibration intensity, ejection intensity and jumping coefficient of the vibrating feeder can be known from the movement of the material on the tank body. The condition for material throwing is that the resultant force of the tank body is zero.

The selection of the vibration angle and the installation angle depends on three factors, namely, the conveying efficiency, the wear requirements of the trough and the particle size requirements of the conveyed materials. In order to reduce the wear of the trough, the residence time of the material in the trough should be as short as possible, and the angle should be larger. When the material particles are required, the impact of the material falling into the trough should be as small as possible, and the vibration angle should be as small as possible. Should take a small value. At present, the design angle of the feeder is mostly between 20° and 25°. The installation angle should not be too large. If the installation angle is too large, the material will slide and the wear of the trough will be accelerated. The installation inclination angle is preferably 10° to 15°.