The bearing life in the vibration exciter is generally short, and bearing heating and burning loss often occur, which seriously affects the normal operation of the vibration screen.
The impact load caused by the feeding of the vibrating screen rolling bearing during the working process is large, and the centrifugal force and acceleration caused by the high-speed rotation of the eccentric block are also large. If the performance requirements of the bearing type do not meet the actual working conditions, it will be easy to cause damage, and the service life will be short; The unreasonable design of lubricating seal structure and insufficient lubrication of bearing are the main reasons for the deformation of bearing due to heating,
Vibrating screen bearing
In addition, if the large interference fit is selected between the bearing and the bearing seat hole during assembly, the geometric deformation of the bearing raceway shape will be forced, resulting in abnormal vibration of the bearing during operation; If a large clearance fit is selected, the bearing outer ring will slide relatively in the bearing housing hole, resulting in a sharp rise in bearing temperature; Will easily cause bearing damage
resolvent:
Special bearings are selected. The common vibrating screen bearings generally include cylindrical roller bearings and self-aligning roller bearings; At the same time, thin oil lubrication is adopted to improve the lubrication channel and seal structure. During installation, special tooling shall be used to make the inner or outer rings evenly pressed and assembled in place during bearing assembly.
In addition, vibrating screening equipment is an important equipment necessary for mining, mineral processing, coal preparation, building materials, chemical and other departments, and its performance directly affects the production capacity and technical and economic indicators. The SKL bearing on the shale shaker has a large load and high frequency, and the load is always changing, so the bearing must adopt large clearance; There must be a certain clearance between the gland and the bearing outer ring to ensure the normal heat dissipation and certain axial movement of the bearing.