Ship propulsion DC motor

Abstract

The invention relates to a DC motor, in particular to a ship propulsion DC motor. According to the technical solution provided by the present invention, the ship propulsion DC motor includes a left end cover arranged at the left end of the machine base, and a right end cover arranged at the right end of the machine base, the left end of the main shaft is installed on the left end cover by the first bearing, and the main shaft The right end is installed on the right end cover by the second bearing; and, the right end of the main shaft protrudes from the right end cover to form a shaft extension end; the rotor is installed on a section where the main shaft is located in the base, and the inner wall of the base corresponds to the rotor. Stator, the stator surrounds the periphery of the rotor; it is characterized in that: a pressure plate is connected to the left end of the main shaft, an annular angle ring is arranged between the left side of the inner ring of the first bearing and the pressure plate, and the first bearing The right side is provided with a bearing inner cover fixed on the inner wall of the left end cover, and the center of the bearing inner cover has a shaft hole. The direct current motor can solve the power problem of electric propulsion of domestic small work boats.

Description

technical field [0001] The invention relates to a DC motor, in particular to a ship propulsion DC motor. It is mainly used to drive the ship's main propeller, bow thruster, fire pump and other equipment. technical background [0002] At present, domestic small and medium-sized operation ships are all propelled by diesel engines, which generally have problems such as high energy consumption, poor maneuverability, and heavy weight. With the advancement of modern power electronics technology, electric propulsion of ships is an inevitable result. Electric propulsion has been widely used in foreign small workboats. The use of electric propulsion for ships has the advantages of good economy, good maneuverability, good safety, space saving, low noise, and low emissions. The economic benefits of ships using electric propulsion are obvious. With the improvement of power electronic devices, the development of motor control technology and harmonic suppression technology, and the ma...

AI Technical Summary

Problems solved by technology

[0002] At present, domestic small and medium-sized operation ships are all propelled by diesel engines, which generally have problems such as high energy consumption, poor maneuverability, and heavy weight.

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