The invention discloses a marine propeller blade structure which comprises a propeller blade body, the propeller blade body comprises a suction side and a pressure side with micro-convex bodies, and the pressure side with the micro-convex bodies is provided with a plurality of micro-convex bodies; and the micro-convex bodies are arrayed at equal intervals along the direction from the guide edge to the following edge of the propeller blade. The micro-convex bodies are designed on the surfaces of the propeller blades, the efficiency of the propeller is improved through surface micro-modification on the basis of an original blade profile, the original blade profile blades are further optimized within a wide advancing speed range, the open water efficiency of the propeller is improved, the thrust of the propeller is increased, the torque is reduced, and wake disturbance is reduced; and engineering spraying is easy to carry out when the micro-convex bodies on the surfaces of the propeller blades are processed.
本发明公开了一种船用螺旋桨桨叶结构,包括:螺旋桨桨叶本体,所述螺旋桨桨叶本体包括吸力侧和带微凸体的压力侧,所述带微凸体的压力侧上设置有若干个微凸体;所述微凸体沿螺旋桨桨叶的导边至随边方向进行等间距阵列排列。通过在螺旋桨桨叶表面设计微凸体,在原叶型的基础上通过表面微改型提升螺旋桨的效率,在宽进速范围内进一步优化了原叶型桨叶提高螺旋桨敞水效率,使螺旋桨的推力增加,扭矩减小,尾迹扰动减小,且螺旋桨桨叶表面的微凸体加工时易于进行工程喷涂。
Marine propeller blade structure
一种船用螺旋桨桨叶结构
2022-02-25
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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