Anti-twining driving device for ships

Abstract

The invention relates to the technical field of power driving devices for ships and particularly to an anti-twining driving device for the ships. The anti-twining driving device for the ships comprises a propeller, a transmission shaft and a ship stern pipe or a Y-shaped tail stand. The anti-twining driving device for the ships is characterized by comprising a saw-tooth-shaped cylindrical cutting tool; the cutting tool is installed on the outer wall of the ship stern pipe or the outer wall of the Y-shaped tail stand; the cutting edge of the saw-tooth-shaped cutting tool faces to the propeller; the rear end surface of the propeller is provided with a cutting strip knife; the lateral side of the cutting strip knife is provided with a cutting edge; the cutting strip knife is parallel to the transmission shaft of the propeller. According to the anti-twining driving device for the ships, two-stage cutting can be achieved due to rotation of the propeller, the cutting strip knife rotates along with the propeller to cut a linear object close to the propeller, and once the linear object is close to the transmission shaft, the saw-tooth-shaped tubular cutting tool automatically cuts the linear object. The anti-twining driving device for the ships has the advantages of being simple in structure and thorough in cutting, enabling the working efficiency of the propeller to be high and being applied to various ships to prevent failures due to the fact that the propeller is twined.

Description

technical field [0001] The invention relates to the technical field of power drive devices for ships, in particular to an anti-winding ship drive device. Background technique [0002] As we all know, the propulsion device of a ship generally adopts the propeller method. The propeller is composed of a propeller drum and a propeller blade. The propeller is connected to the output shaft of the power machine through the transmission shaft. There is a ship stern tube or a beauty frame at the connection, and the drive shaft drives the propeller to rotate to drive the ship to sail. During navigation, the groove between the propeller drum and the ship stern tube or the beauty frame and the propeller drum is often covered by floating objects in the water, The entanglement of fishing nets and cables affects the normal operation of the propeller, and sometimes causes damage to the propeller, loss of power of the ship, and major accidents. [0003] Chinese patent call 008100483533 d...

AI Technical Summary

Problems solved by technology

[0002] As we all know, the propulsion device of a ship generally adopts the propeller method. The propeller is composed of a propeller drum and a propeller blade. The propeller is connected to the output shaft of the power machine through the transmission shaft. There is a ship stern tube or a beauty frame at the connection, and the drive shaft drives the propeller to rotate to drive the ship to sail. During navigation, the groove between the propeller drum and the ship stern tube or the beauty frame and the propeller drum is often covered by floating objects in the water, The entanglement of fishing nets, cables, etc. affects the normal operation of the propeller, and sometimes causes damage to the propeller, loss of power of the ship, and major accidents

[0003] Chinese patent call 008100483533 discloses "an automatic cutting device for propeller windings", which includes a cutting tool, which is characterized in that the cutting tool is installed on the outer wall of the ship stern tube or beauty frame and spans the ship stern tube or beauty frame and The groove between the propeller drums, the end face and the outer surface of the propeller of the cutting tool are provided with blades, and the cutter is installed on the outer wall of the ship stern tube or the beauty frame along the direction parallel to the axial direction of the ship stern tube or the beauty frame. It is inconvenient to install and the effect of use is poor. Sometimes floating objects, fishing nets and cables will wrap the cutter, affecting the normal operation of the propeller, and sometimes causing the ship to lose power and causing major accidents.

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