Quickly understand the four reasons and solutions for slow feeding of vibrating feeders

Quickly understand the four reasons and solutions for slow feeding of vibrating feeders

The vibrating feeder is also called vibrating feeder. In the production process, the block and granular materials can be uniformly, regularly and continuously fed into the receiving device from the storage bin, which is widely used in metallurgy and coal mines. In the crushing and screening joint equipment of mineral processing, building materials, chemicals, abrasives and other industries. This paper summarizes the structure, working principle, slow feeding reason and installation and maintenance of the vibrating feeder, and provides the basis for the daily maintenance and maintenance of technicians.

First, the vibration feeder equipment structure

The vibrating feeder is composed of a vibration frame, a vibrating body, a vibration motor, a vibration exciter, a spring (the spring is divided into an excitation spring and a support spring).

1-Flexible Sealing Cover 2-Resonant Body 3-Bracket 4-Activation Cone 5-Excited Spring 6-Exciter 7-Vibration Motor 8-Spring Balancer 9-Flexible Seal Cover 10-Outlet Tube 11-Support Spring


Second, the working principle of the vibration feeder

The vibrating feeder uses the eccentric mass in the vibrator to generate centrifugal force, so that the moving part of the sieve box, the vibrator and the like are forced to be continuous circular or nearly circular motion. The motor drives the driving shaft through the V-belt, and then the active The upper shaft gear meshes with the passive shaft to rotate, and the main and passive shafts rotate at the same time in the opposite direction to vibrate the tank body, so that the material continuously flows continuously to achieve the purpose of conveying materials.

Third, the reason for the slow feeding of the vibrating feeder

  • 1. The chute is not inclined enough
  • Solution: Adjust the installation angle. Select the height/lower fixed position of the feeder according to the site conditions.

  • 2. The angle between the eccentric blocks at both ends of the vibration motor is inconsistent
  • Solution: Adjust by checking if the two vibration motors are consistent.

  • 3. Vibration motor vibration direction is consistent
  • Solution: It is necessary to adjust the wiring of any of the vibration motors to ensure that the two motors are operated in reverse to ensure that the vibrating feeder's vibration trajectory is straight.

  • 4, vibration motor excitation force is not enough
  • Solution: Adjust the position adjustment of the eccentric block (the adjustment of the excitation force is achieved by adjusting the phase of the eccentric block. The two eccentric blocks are fixed and the other is movable, and the loose movable eccentric block bolt can be used. When the phase of the eccentric block coincides, the excitation force is the largest and decreases in turn; when adjusting, the phase of the eccentric block of the same group of motors should be consistent.


Fourth, vibration feeder installation and maintenance

  • 1. In the vibrating feeder, it is used for batching and quantitative feeding to ensure uniform and stable feeding, and to prevent the material from self-flowing to be installed horizontally.
  • 2. The feeder after installation should have a horizontal clearance of 20mm, and the suspension device should be connected flexibly.
  • 3. Before the empty test, all the bolts should be tightened once, especially the anchor bolts of the vibration motor. It should be tightened once for 3-5 hours.
  • 4. When the test is started, the two vibration motors must rotate in the opposite direction, and the stability of current and noise should be stopped in time.
  • 5. The motor bearing is filled with grease once every two months, and the lubricating oil should be filled once a month during the high temperature season.
  • 6. During the operation of the feeder, the amplitude should be checked frequently, the current of the vibration motor and the surface temperature of the motor should be uniform. The front and rear amplitudes should be even, and the vibration motor should be stable. If abnormal conditions are found, stop the treatment immediately.