Fuller pump discharge end bearing heat analysis and processing of 2)

。 Adjust the compression spring for improving air sealing pressure, pump more fully utilized, tongue pneumatic valve is constantly switching. Pneumatic valve to open, the tongue is the nest, it will have a compressed air into the discharge chamber material transportation of low pressure in the future. As part of the spiral drum of a long, high resistance, it is not easy to this part of the compressed air into the funnel at the next feeding. Bearing a few times, the only way out is through discharge in processing of bearings in the direction of the front end. When the gas sealing pressure is low, unable to resist the air flow, powder materials into bearing, bearing heating. In order to solve this problem, we must increase the gas pressure seal, at least should be greater than compressed air transport pressure material. In addition, several sealing gasket compression spring firmness, must be properly adjusted. Tight increased wear, bearing is easy to heat dissipation; Is too loose, seal gaskets are not easy to make into the bearing raw materials powder.
。 Activity, must ensure that the screw shaft axial bearing clearance generally longer, fuller pump for fuller pump diameter, for example, for mm screw pump shaft length, the distance between the fulcrum, consider mm at both ends, the temperature of the shell in ℃, ℃ and ℃ calculation, thermal elongation: screw shaft. ,。 ,。 Mm. So much of the elongation, must have a bearing on all at the end of the active bearing. According to design principle, the discharge end bearing general installation activities, must ensure that the axial clearance, this will definitely result in bearing heat. Therefore, the discharge end bearing and the shell bearing should be the minimum gap between about mm.
。 Gas bearing of the bearing should be properly the right fuel, also can cause bearing heating.
rolling bearing grease, in general, you should add/into/space of oil content. Excess oil, bearing will be fever, too little, reduce operating cycle for a while, frequent fuel cycle, the second is caused by a lack of heating oil.
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