The invention discloses an anti-winding device for a ship shaft, and relates to the field of ship shafts. The anti-winding device comprises: a ship body and a ship shaft running through the tail of the ship body, wherein the ship shaft is rotatably connected to the ship body, and the ship shaft is connected to a power system in the ship body and used for driving the ship shaft to rotate; a plurality of blades, which are distributed at the end of the ship shaft outside the ship body; a shrinkage groove, which is disposed on a side surface of the ship shaft located between the blades and the ship body; a plurality of top plates positioned in the shrinkage groove and a plurality of cutters fixed on the outer side surfaces of the top plates; a driving part, which is in power connection with the top plates and used for driving the top plates to get close to or away from the side surface of the shrinkage groove. In a ship traveling process, if the ship shaft located outside the ship body iswound by entanglements in water, the driving part drives the top plates to be away from the side surface of the shrinkage groove, then the entanglements are cut into a plurality of sections through the cutters, so that the entanglements cannot wind the ship body further, therefore the ship shaft can be effectively prevented from being wound by the entanglements in the travelling process, the shipcan run normally, and after the entanglements are cut off, the driving part enables the top plates to return to original positions.
本发明公开了一种船轴用防缠绕装置,涉及船轴领域,包括船体及贯穿船体尾部的船轴,船轴与船体转动连接,且船轴与船体内部的动力系统连接,用于驱动船轴转动;若干叶片,其分布于船体外部的船轴的端部;位于叶片与船体之间的船轴的侧表面设有收缩槽;位于收缩槽内的若干顶板及固定于顶板外侧面的若干割刀;与顶板动力连接的驱动部,用于驱动顶板向收缩槽侧表面靠近或远离,在船只行驶过程中,如果位于船体外部的船轴被水中的缠绕物缠绕时,驱动部驱动顶板向收缩槽侧表面远离,进而通过割刀将缠绕物割断成若干段,使其无法继续缠绕,这样即可有效防止船轴在行驶过程中被缠绕物缠绕,使船只正常行驶,在缠绕物割断后,驱动部使顶板恢复原位。
Anti-winding device for ship shaft
一种船轴用防缠绕装置
2020-06-09
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |