The invention relates to the technical field of propelling devices, in particular to a tip clearance vortex eliminating device. The tip clearance vortex eliminating device comprises a duct, propellerscapable of rotating around an inner ring of the duct is arranged in the center of the inner ring of the duct, an annular channel is formed in the inner surface of the duct, a copper ring is arrangedin the annular channel in an embedded mode and is located in orthographic projection areas of propeller tips of the propellers on the inner surface of the duct, in addition, the height of the copper ring can completely cover the orthographic projection areas of the propeller tips of the propellers on the inner surface of the duct, the propeller tips of the propellers always face the inner surfaceof the copper ring in the rotating process, sliding block grooves are formed in the surfaces of the propeller tips of the propellers in the length direction, carbon sliding blocks are arranged in thesliding block grooves, and the outer surfaces of the carbon sliding blocks can make contact with the inner surface of the copper ring in a matched mode. According to the tip clearance vortex eliminating device, tip clearance vortexes generated at tip parts of hydrodynamic blades such as the ducted propellers and water pump rotors can be eliminated, and vibration and noise generated in the workingprocess of a propelling device are reduced.
本发明涉及推进装置技术领域,尤其是一种梢隙涡消除装置。其包括导管,所述导管内圈中心设有能够围绕导管内圈回转的螺旋桨,所述导管内表面设置环状槽道,环状槽道内嵌装铜环,铜环位于螺旋桨桨梢在导管内表面正投影区域内,并且铜环的高度尺寸能够完全覆盖螺旋桨桨梢在导管内表面正投影区域,螺旋桨桨梢在转动过程中始终面向铜环内表面;所述螺旋桨桨梢表面沿长度方向设有滑块槽,滑块槽内设置碳滑块,碳滑块外表面和铜环内表面能够吻合接触。本发明能够消除如导管螺旋桨、水泵转子等水动力叶片梢部产生的梢隙涡,降低推进器工作时的振动及噪声。
Tip clearance vortex eliminating device
一种梢隙涡消除装置
2021-02-12
Patent
Electronic Resource
Chinese
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