The invention provides a propeller structure capable of delaying cavitation, and relates to the technical field of propellers, the propeller structure comprises a propeller blade, and a plurality of wedge blocks are arranged on the surface of the upper end of the propeller blade; the radial mounting range of the wedge-shaped blocks is as follows: 2-4 wedge-shaped blocks are arranged in the cavitation area of the propeller blade; the chordwise mounting range of the wedge-shaped block is 60%-80% of the thickness of the propeller blade from the guide edge to the mounting position; the mounting direction of the wedge-shaped block is as follows: the tip part is close to the guide edge of the propeller blade, the length edge is along the section of the propeller blade, the wedge-shaped block is vertically mounted on the surface of the propeller blade, the width of the wedge-shaped block is 20%-30% of the thickness of the propeller blade at the mounting position, the length of the wedge-shaped block is 60%-80% of the thickness of the propeller blade at the mounting position, and the thickness of the wedge-shaped block is 2%-3% of the thickness of the propeller blade at the mounting position. The method mainly aims at the shape, the installation number and the installation positions of the wedge-shaped blocks, and the effect of delaying cavitation is achieved under the condition that the performance of the propeller is affected as little as possible.
本申请提供了一种延缓空化的螺旋桨结构,涉及螺旋桨技术领域,包括螺旋桨叶,螺旋桨叶的上端表面设置有多组楔形块;楔形块的径向安装范围为:螺旋桨叶发生空化的区域内,数量为2—4个;楔形块的弦向安装范围为:到导边距离安装位置处螺旋桨叶厚度的60%~80%;楔形块的安装方向为:尖端部靠近螺旋桨叶的导边,长度边沿着螺旋桨叶的剖面,垂直安装在螺旋桨叶的表面,楔形块的宽度设置为安装位置处螺旋桨叶厚度的20%~30%,长度设置为安装位置处螺旋桨叶厚度的60%~80%,厚度为安装位置处螺旋桨叶厚度的2%~3%。本发明主要在于楔形块的形状与安装数量及安装位置,在尽可能少影响螺旋桨性能的条件下,起到延缓空化的作用。
Propeller structure capable of delaying cavitation
一种延缓空化的螺旋桨结构
2025-01-10
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Propeller structure capable of reducing cavitation phenomenon
European Patent Office | 2022
|Engineering Index Backfile | 1933
|Engineering Index Backfile | 1933
|Engineering Index Backfile | 1933
|Engineering Index Backfile | 1932
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