Properly remove the bearing of vibrating screen

Vibrating screen bearing is one of the most important parts of mining vibrating machinery, vibrating screen machinery and vibrating motor. The working condition of the bearing is very bad, not only the environment humidity is high, the dust particles are many, the rotating speed is high, the temperature is high, and there is a strong vibration impact, resulting in a very large working load. The bearing has strong bearing capacity, good impact resistance, high reliability, good lubrication performance, and can overcome the deflection of the shaft.

Improper disassembly of the shale shaker bearing may cause internal damage to the bearing. Contamination may enter the bearing or may cause errors during re installation. Therefore, great care must be taken to dismantle the bearing of the vibrating screen, and the shaft must be properly supported, otherwise the dismantling force may damage the bearing.

1. Removal of outer ring

To remove the outer ring of interference fit, several outer rings are set on the circumference of the shell in advance to extrude the screw, and the screw is tightened evenly on one side and removed at the same time. These screw holes are usually covered with blind plugs, separable bearings such as tapered roller bearings of vibrating screen, etc., and several cuts are set on the shoulder of the shell, which are removed by using cushion block, press or tapping gently.

2. Disassembly of cylindrical hole bearing of vibrating screen

The disassembly of inner ring can be pulled out by pressure machine. At this time, pay attention to let the inner ring bear its pulling force.

The inner ring of the bearing of large vibrating screen is disassembled by oil pressure method. The oil pressure is applied through the oil hole on the shaft to make the drawing easy. For wide bearings, oil pressure method and drawing fixture are used together for disassembly.

The inner ring of Nu and NJ cylindrical roller shaker bearings can be disassembled by induction heating method. In a short period of time heating local, so that the inner ring expansion after drawing method.

3. Disassembly of taper hole bearing

Remove the smaller bearing with tightening sleeve, support the inner ring with the stop fixed on the shaft, and turn the nut back several times.