Design of Jet Control Device for Forced Lubrication System of Bearing

Abstract

In response to the problem of poor lubrication effect and unstable bearing operation leading to bearing failure in traditional bearings, the solution of installing a jet device on the bearing has been proposed. Using numerical calculation software, analyze the impact of installing a semi-circular or 1/4 circular jet device on the temperature field and leakage rate of the bearing. The results show that after installing a jet control device, the temperature of the flow field around the bearing decreases significantly at the same inlet pressure, while the leakage rate decreases. Keeping the speed and oil temperature constant, as the pressure at the lubricating oil inlet increases, the leakage rate decreases by 51.87% -59.80%; Keeping the rotational speed and oil inlet pressure unchanged, as the temperature of the lubricating oil at the inlet increases, the leakage decreases by 45.94% -50.74%; Keeping the inlet pressure and oil temperature unchanged, when the speed increases, the leakage decreases by 12.58% -18.31%. Install a jet device on the end face of the bearing to achieve collaborative design of low leakage and low temperature rise at the bearing, thus providing a theoretical basis for the long-term design of the bearing.