High-torque high-sealing variable paddle direct current motor

Abstract

The invention discloses a high-torque high-sealing variable paddle direct current motor, relating to the technical field of direct current motors. A rotor penetrates into a casing formed by the connection of a front end cover, a cover plate, and a rear end cover, the front end of the cover plate is fixedly connected with a conjunction box, and a blower fan hook is arranged outside the rear end cover. A stator is cooperatively connected with the rotor, the two ends of the stator are connected with the conjunction box and a brush respectively via leads, the other end of the conjunction box is connected with a blower fan and an electromagnetic brake via leads, the electromagnetic brake is directly connected with the rotor, an encoder is connected with the rotor via a shaft coupling, the two ends of the encoder are respectively provided with an encoder base and an encoder cover, and a sealing pad is arranged between the cover plate and the conjunction box, and a sealing pad is arranged between the encoder base and the encoder. The motor is simple in integral structure, and the assembling difficulty of the motor is greatly reduced, so that the high reliability, high stability, and high precision of a wind power generation device can be guaranteed; in addition, the sealing property is good, and the wind power generation device can be used in a severe environment.

Description

technical field [0001] The invention relates to the technical field of DC motors, in particular to a pitch-variable DC motor with high torque and high sealing performance. Background technique [0002] In recent years, with the development of the wind power industry, the research and development capabilities of various manufacturing companies in this field have been greatly improved, which also makes more and more companies focus on how to improve the conversion efficiency of wind energy and the installed capacity of a single machine. In terms of capacity, various manufacturing companies have higher requirements for the following and driving capabilities of the pitch system. [0003] The high-torque pitch-changing special motor is used to control the blade angle, and it also plays a decisive role in the efficacy and safety of the equipment. However, with the continuous development of science and technology, there are certain disadvantages in the continuous improvement of hi...

AI Technical Summary

Problems solved by technology

[0004] 1. After a long period of continuous operation, the performance of the motor will be unstable, and the safety and reliability will be low;

[0005] 2. The control accuracy of blade position and motor speed is low;

[0006] 3. The overall structure of the motor is complicated, the assembly is complicated and cumbersome, and maintenance is often required, which costs a lot;

[0007] 4. The overall sealing of the motor is poor

Images