High-speed gear oil injection lubrication tooth surface heat dissipation optimization method

The invention provides a high-speed gear oil injection lubrication tooth surface heat dissipation optimization method, which comprises the following steps of: calculating instantaneous heat flux density based on dynamic load on a gear pair, applying an intermittent and spatial heat source to a transmission tooth surface in a heat flux coupling process, and simulating heat distribution during gear operation; the average temperature and the temperature difference of the transmission tooth surface are obtained based on heat flow coupling analysis; a selection scheme of oil injection parameters is designed based on a quadratic regression orthogonal method, the oil injection parameters serve as independent variables, the average temperature and the temperature difference of the transmission tooth surface serve as dependent variables, a quadratic regression equation is established, and a response curve of interaction of the oil injection parameters to the average temperature and the temperature difference of the tr