A marine propulsion device

Abstract

The invention discloses a marine propulsion device, which comprises a pillar, the upper end of the pillar is connected with a slewing assembly connected with the ship, the front side of the pillar is provided with a front fin, the rear side of the pillar is provided with a rear fin, and the lower end of the pillar is connected with a drive motor Shell, the drive motor shell is provided with a drive motor, the rear side of the drive motor shell is provided with a propeller connected to the drive motor, the rear fin is provided with a fixed deflector and a first movable deflector, and the rear fin A groove cavity is opened on the top, and a first motor is arranged in the groove cavity. The output end of the first motor is connected with a rotating shaft, and the end of the rotating shaft is connected with the first moving deflector. When the present invention is used in a marine propulsion device, as the speed of the ship increases, the service life of the propulsion device is improved due to the installation of the fixed deflector and the first movable deflector, and the large vibration of the prop is reduced. The device is provided with cooling holes, which improves the high efficiency of the propulsion device and further improves the service life of the propulsion device.

Description

technical field [0001] The invention relates to the technical field of marine propulsion, in particular to a marine propulsion device. Background technique [0002] The marine propulsion device refers to the energy converter in the marine propulsion device. It converts the power generated by the engine into the thrust of the boat to overcome the resistance of the boat sailing in the water and push the boat forward. The most common is the propeller, in addition to the paddle wheel, water jet propulsion device, jet propulsion device, duct propulsion device and rotary propulsion device and so on. The pod propulsion device is a new type of marine propulsion device, which mainly includes a pillar, a motor, a motor casing and a propeller. The motor is installed in the motor casing, and the propeller is connected to the motor transmission. Shell connection. [0003] During the working process of the propulsion device, as the speed of the ship increases, the pillar will be washed...

AI Technical Summary

Problems solved by technology

[0003] During the working process of the propulsion device, as the speed of the ship increases, the pillar will be washed by the high-speed water flow, and it is easy to generate cavities on the outer wall of the pillar, resulting in a large vibration of the pillar, which in turn reduces the service life of the propulsion device ; There is insufficient heat dissipation on the existing propulsion device, thereby reducing the service life of the propulsion device

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