Inner rotor permanent magnet motor and winding drum

Abstract

The invention relates to the technical field of motors, in particular to an inner rotor permanent magnet motor and a winding drum. The permanent magnet motor comprises a rotor shaft, a stator core with a winding, and a motor shell. The rotor shaft is provided with a permanent magnet, one end of the rotor shaft is provided with a torque transmission shaft extension, the stator core sleeves the rotor shaft, the motor shell sleeves the stator core and is in interference fit with the stator core, one end, provided with the torque transmission shaft extension,of the rotor shaft is connected with astatic end cover through a bearing, the other end is connected with a torque transmission end cover through a bearing, and the static end cover and the torque transmission end cover are respectively connected with the motor shell through flanges and bolts. The permanent magnet motor is arranged in a winding drum shell, the torque transmission end cover is connected with a front end cover through abearing, the rotor shaft is connected with a rear end cover through the torque transmission shaft extension, and the two ends of the winding drum shell are respectively connected with the front end cover and the rear end cover through flanges and bolts. The internal space of the winding drum is fully utilized, the workpiece manufacturing difficulty is reduced, and modular and serial management and batch production of motor products are facilitated.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to an inner rotor permanent magnet motor and a reel. Background technique [0002] The existing reel motor usually adopts the structure of the rotor outside the stator. The design of the motor itself has the characteristics of low speed and high torque, and the use of the reducer can be eliminated, so as to achieve high efficiency, low failure points, and less maintenance. This kind of motor is used It is called an external rotor motor; the stator of the external rotor motor is installed on a fixed central shaft, and the rotor is in the shape of a roll, covering the outside of the stator; flange end covers are provided at both ends of the external rotor rotor, which are connected to the central shaft through bearings , the inner wall is inlaid with permanent magnets, which interact with the rotating magnetic field generated by the stator winding after electrification, and drive the o...

AI Technical Summary

Problems solved by technology

[0002] The existing reel motor usually adopts the structure of the rotor outside the stator. The design of the motor itself has the characteristics of low speed and high torque, and the use of the reducer can be eliminated, so as to achieve high efficiency, low failure points, and less maintenance. This kind of motor is used It is called an external rotor motor; the stator of the external rotor motor is installed on a fixed central shaft, and the rotor is in the shape of a roll, covering the outside of the stator; flange end covers are provided at both ends of the external rotor rotor, which are connected to the central shaft through bearings , the inner wall is inlaid with permanent magnets, which interact with the rotating magnetic field generated by the stator winding after electrification, and drive the outer cylinder rotor to rotate; High and difficult to maintain and repair; and affected by application conditions, space dimensions, etc., it is difficult to form a modularized and serialized motor

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