The lubrication device is very important of the ball mill. When the main bearing of the ball mill works, the stale lubrication device is very necessary. The large scale ball mill often uses the oil pump for forced circulation lubrication. The lubrication of the main bearing of the ball mill can use the dynamic pressure and static and dynamic pressure. The hydrodynamic lubrication can be divided into the oil pump and the oil ring with oil. The main bearing of the ball mill is composed of the bearing cap, oil scraper plate, platen, eyehole, thermometer, bearing, spherical watts and the oil level hole. Lubrication of these expensive, large open gear systems presents a unique challenge due to the harsh environmental considerations, as well as heavily loaded conditions. Grinding or pulverizing mills are exposed to cement dust, mineral dust, coal dust, temperature extremes and heavy loads. These severe conditions magnify the need for superior lubricating products. Each slide ring runs in a bearing with two self-aligning and hydrodynamically lubricated slide shoes. One of the slide shoes at the drive end holds the mill in axial direction. In the others, the slide rings can move freely in axial direction to allow for longitudinal thermal expansion and contraction of the mill body.
The lubricating oil enters the bearing from the inlet pipe and the oil is injected into the hollow shaft. Then the oil is sent to the bearing bush. The lubricating oil in the bearing housing flows back from the oil return pipe and forms the closed loop fuel supply system through the filtration device and cooling device. The lubricating effect is very good. The oil level hole is used to check the amount of the oil in the fuel tank. Since the rotating speed of the milling machine is too low, the oil film generated by the hydrodynamic lubrication is very thin, which can not reach the liquid friction lubrication but the semi-liquid friction lubrication. The spare oil ring is installed in the milling machine for better stability and safety. The large and small ball mill uses the oil circle with oil lubrication.
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