Vertical Mill Bearing Lubrication

Description of various ways of vertical mill bearing lubrication

Guide: we believe that users of vertical mills know that good equipment lubrication is an effective way to reduce equipment wear, improve equipment efficiency, and save materials and energy. Bearing lubrication is to enable the bearing to operate normally, reduce friction and wear inside the bearing, and extend the bearing.

It is believed that users of vertical mills know that good equipment lubrication is an effective way to reduce equipment wear, improve equipment efficiency, and save materials and energy. Bearing lubrication is to enable the bearing to operate normally, reduce friction and wear inside the bearing, and extend the service life of the bearing. The following is a description of the various ways in which the vertical mill bearings are lubricated.

First, splash lubrication is a way of lubricating a vertical mill bearing. Splash lubrication is a means of lubrication that brings oil into the bearing through other running parts. Splash lubrication oil supply is not easy to adjust, the lubricating oil surface can not be too high, otherwise it will easily cause stirring loss and temperature rise, and it is easy to bring impurities in the fuel tank into the bearing internal damage bearing. In splash lubrication, oil is splashed onto the bearing by a rotating body mounted on the shaft, and the bearing is not submerged in the oil. Generally in gearboxes, gears and bearings often share a fuel tank with the gear as a slinger. Since the viscosity of the gear oil may be different from the bearing requirements, and the oil contains wear particles from the gear, a separable lubrication system or method is available to improve bearing life.

Circulating oil lubrication

Secondly, circulating oil lubrication is also a way to lubricate the bearings of vertical mills. Circulating oil lubrication is a lubrication method in which the oil is pumped from the fuel tank by the oil pump to the part where the bearing needs lubrication, and then returned to the fuel tank from the oil return port and filtered and reused. The oil supply system consists of an oil pump, a cooler, a filter, a fuel tank, and an oil pipeline. The circulating oil lubrication is sufficient, the oil supply is easy to control, and the heat dissipation and impurity removal ability are strong. Circulating oil lubrication is an ideal way to lubricate. However, an independent fuel supply system is required, and the manufacturing cost is relatively high. Circulating oil lubrication can be divided into injection lubrication, forced lubrication and spray lubrication. Circulating oil lubrication is suitable for applications where heat dissipation or impurity removal is required, as well as high-speed, high-temperature, heavy-duty applications, and high reliability.

In addition, oil mist lubrication is also a means of lubrication of vertical mill bearings. Oil mist lubrication is a kind of lubrication method in which lubricating oil is mixed with a small amount of lubricating oil in an oil mist generator to form an oil mist, and then delivered to a bearing lubrication part. The oil mist lubrication has small agitation loss and temperature rise, saves oil, has less impurities in the oil, and has a certain cooling effect when the oil mist is sprayed, and can effectively prevent impurities from intruding or discharging impurities. However, the cost of the lubricating device is relatively high, and there is a certain requirement for the viscosity of the oil to be used, and generally it should not be higher than 340 mm 2 / s, otherwise the atomization effect will not be achieved. In addition, if the sealing is not strict when lubricating, some oil mist may be dissipated into the air to pollute the environment. If necessary, an oil separator should be used to collect the oil mist. Oil mist lubrication is suitable for high speed applications.

The above three methods of lubrication of vertical mill bearings are briefly introduced, which are splash lubrication, circulating oil lubrication and oil mist lubrication. Which one to use depends on the user's choice.

Other News