Bearing in bakelite mill

        First, the preparation of coal in power 15O0x4000 the ball mill, and also Walter hot air 200 ~ 300 ℃ of them was dry process, so the ball having a diameter of both ends of the journal and will babbitt bearing 450 are in under high temperature. Usually bearing lubrication needs be equipped with a larger fuel lubrication oil station, and in the hollow of the bearing block Walter large amount of cooling water for indirect cooling pad, but a very low indirect cooling efficiency.
Thus, to increase the lubrication oil station equipment, construction investment, put into operation followed by the consumption of spare parts, fuel and power consumption. In order to solve these problems, we have adopted a bakelite bearing instead of babbitt bearings.
        Second, bakelite bearing bakelite bearing from the 1930s will be widely used in rolling mills and many other industrial sectors, its advantages are:
        1. bakelite bearing friction coefficient in the liquid Friction of about 0.004 to 0.008, in the case of semi-dry friction of about 0.01 to 0.08, preferably at 0.01 to 0.03 in the actual calculation. Non-ferrous metals than the coefficient of friction of the bearing (0.05 to 0.07) is much lower. Due to a low coefficient of friction, the energy consumption of non-ferrous metal bearing lower than the 15 to 50%, and the heat generated when the work should be much less.
        2. bakelite bearing wear metal bearing 10 to comply with O times longer life than metal bearings. Thus a significant reduction in the consumption of spare parts, reduce its maintenance time, thus greatly improving the operation rate of the equipment.
        3. bakelite bearing because the body can embed heterogeneous debris, debris can be prevented from being scratched journal. In addition ,, bakelite journal bearing capable of polishing, improved working conditions. 4. bakelite bearing compressive strength sufficient water in the lubrication and cooling conditions, the allowable value than the pressure up to 500kg / em ', while the metal to reach the highest bearing 300kg / cm2. Bakelite bearing Hangzhou also has great earthquake, pit impact.
        5. bakelite bearing proportion of only about one sixth of copper, which greatly reduces the weight of the equipment. For the same parts to compare with molded Bakelite tiles and only about a quarter of the cost of copper.
        6. In addition to bakelite bearing oil, emulsion with water as a lubricant can be. Source water is simple, thorough lubrication system can simplify, especially water directly on the bearing and journal cooling effect, solves the bakelite bearing heat slowly and disadvantages does not heat. In view of the above advantages bakelite bearing, especially its possible water lubrication and cooling of the specific function, we put bakelite bearing on the ball, and have been successful. Under the structure of bakelite bearing bush is embedded in the original bearing years, which consists of 11 rubber wood to fight the system, including the angle of 120.
        Both sides of the thrust bearing is made of plastic wood made bad to prevent axial movement of the ball. Bush and the bush under the thrust ring is pressed by the pressure plate and wedge plate. Wedge plate fixed by the M10 screws in the bearing housing. Between the wedge plate and the bearing clearance, thus allowing the cooling water flows into the drain funnel. The difference between the feed inlet and discharge opening bearing bakelite bakelite but it has no bearing thrust ring, because this end as a free end. Bakelite bearing inner diameter 450 are power + 0 · leave mm, wall thickness of 18mm, with the size of each of the other part as shown. Bakelite bearing no bearing on the pad and the side, it is because of the weight of the larger ball mill, and the drive wheel is applied to the circumferential direction of the force on the ball downward.
        Fourth, the use effect bakelite ball bearings used, its life has been for six years. Ball journal bearing is worn bakelite bright as a mirror, use a decade still in good condition. Thus, reducing maintenance time and increase the operating rate, greatly reduced spare parts consumption, fuel consumption and power consumption, saving non-ferrous metals, but also save the investment thin oil station construction, equipment.
        Five years of use in practice on ball bearing proof bakelite conclusion:
        1. Except bakelite bearing itself has a long service life, but also can protect the journal, making it equally "longevity."
        Heat slowly 2. bakelite bearing: Disadvantages not high temperature, as long as the amount of water supply (quantity is not large), and a good lubrication and cooling conditions can be overcome.
        3. Compared with metal sliding bearings, bakelite bearing has great advantages. As long as conditions allow, on the other device with a bakelite bearing instead of non-ferrous metal bearings (as in rolling mill instead of alloy bearing bush with bakelite) it is also possible. The key issue is properly designed in the sub.