CN-224233519-U - Rotor compensation structure based on three-phase asynchronous motor renewing into permanent magnet motor

CN224233519UCN 224233519 UCN224233519 UCN 224233519UCN-224233519-U

Abstract

The utility model provides a rotor compensation structure based on a three-phase asynchronous motor renovated into a permanent magnet motor, which belongs to the technical field of motor renovation and comprises a supporting vertical plate, a shielding sleeve, a limiting ring, a positioning sleeve and a heat dissipation assembly, wherein the supporting vertical plate is installed in a matched mode with the inner wall of a shell and is provided with a mounting hole, the shielding sleeve is fixedly installed at one end of the supporting vertical plate and is installed in a matched mode with the inner wall of the shell, an annular flange is arranged on the shielding sleeve, the limiting ring is fixedly installed at one side of the supporting vertical plate and is arranged around the mounting hole, the positioning sleeve is fixedly installed at the other end of the supporting vertical plate and is arranged along the length direction of the shell, the positioning sleeve is installed in a matched mode with the inner wall of the shell, the distance between the positioning sleeve and the shielding sleeve is consistent with the length of the shell, and the heat dissipation assembly is installed in the positioning sleeve. The rotor compensation structure based on the three-phase asynchronous motor is renovated into the permanent magnet motor, so that the stator and the shell form good matched installation after the transformation, and the heat dissipation performance is higher.

Inventors

ZHANG MENG
MA XINGANG
ZHAO LEIMING
Tao Gongping

Assignees

河北温迈动力科技有限公司
河北欧卓科技服务有限公司

Dates

Publication Date: 20260512
Application Date: 20250528

Claims (10)

1. The rotor compensation structure based on the three-phase asynchronous motor is characterized by comprising a supporting vertical plate, a shielding sleeve, a limiting ring, a positioning sleeve and a heat dissipation assembly, wherein the supporting vertical plate, the shielding sleeve, the limiting ring, the positioning sleeve and the heat dissipation assembly are arranged in the shell, the supporting vertical plate is installed in a matched mode with the inner wall of the shell, the supporting vertical plate is provided with a mounting hole in rotary fit connection with a rotating shaft, the shielding sleeve is fixedly installed at one end of the supporting vertical plate and is arranged along the length direction of the shell, the shielding sleeve is installed in a matched mode with the inner wall of the shell and is used for shielding a stator groove on the inner wall of the shell, the shielding sleeve is provided with an annular flange used for limiting the mounting position of the stator, the limiting ring is fixedly installed at one side, close to the stator, of the supporting vertical plate and is arranged around the mounting hole, the limiting ring is used for being abutted to one end of the stator, the positioning sleeve is fixedly installed at the other end of the supporting vertical plate and is arranged along the length direction of the shell, the spacing between the positioning sleeve and the opposite end of the shielding sleeve is consistent with the length of the shell, and the heat dissipation assembly is installed in the positioning sleeve, and is used for reducing the temperature in the shell.
2. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor according to claim 1, further comprising an annular positioning groove formed on the inner wall of the housing, wherein the supporting vertical plate and the positioning sleeve are installed in the annular positioning groove in a matched mode, and one half of the difference value of the outer diameters of the supporting vertical plate and the shielding sleeve is equal to the depth of the annular positioning groove.
3. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor according to claim 2, wherein the end part of the positioning sleeve is provided with a fixed ring used for being matched with the end part of the shell, and the fixed ring is provided with a plurality of connecting holes.
4. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor according to claim 1, wherein an extension cylinder is fixedly arranged on one side of the supporting vertical plate far away from the limiting ring, the extension cylinder and the mounting hole are coaxially arranged, and the inner diameter is consistent with the inner diameter of the mounting hole.
5. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor, as set forth in claim 1, is characterized in that a fixing ring used for being installed in a matched mode with the end portion of the shell is arranged at the end portion of the positioning sleeve, a plurality of connecting holes are formed in the fixing ring, liquid inlet holes and liquid return holes which are arranged in the radial direction are formed in the fixing ring, the heat dissipation assembly comprises a plurality of heat dissipation fins and cooling pipelines which are located in the positioning sleeve, the heat dissipation fins are fixedly installed on one side, away from the limiting ring, of the supporting vertical plate, and two ends of the cooling pipeline are connected with the liquid inlet holes and the liquid return holes respectively.
6. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor according to claim 5, wherein the cooling pipes are arranged in a reciprocating roundabout way, and one end of the cooling fin, which is far away from the supporting vertical plate, extends into a gap of the cooling pipes.
7. The rotor compensation structure based on the three-phase asynchronous motor renovated to the permanent magnet motor according to claim 5, wherein an upper supporting member group and a lower supporting member group are arranged on the inner wall of the positioning sleeve, and a first supporting cavity for supporting the cooling pipeline is arranged on each supporting member of the upper supporting member group and the lower supporting member group.
8. The rotor compensation structure based on the three-phase asynchronous motor renovated to the permanent magnet motor, as set forth in claim 7, wherein the liquid inlet hole and the liquid return hole are both opened on the upper side of the fixed ring, a second supporting cavity above the first supporting cavity is further provided on the supporting element on the upper supporting element group, and the end section of the cooling pipeline is supported in the second supporting cavity.
9. The rotor compensation structure based on the three-phase asynchronous motor refurbishment permanent magnet motor according to claim 5, wherein a sealing ring for radial sealing is arranged in the mounting hole, and a sealing ring for axial sealing is arranged on the fixing ring.
10. The rotor compensation structure based on the three-phase asynchronous motor refurbishment to the permanent magnet motor according to claim 1, wherein the supporting riser, the shielding sleeve, the limiting ring, the positioning sleeve and the annular flange are integrally formed.

Description

Rotor compensation structure based on three-phase asynchronous motor renewing into permanent magnet motor Technical Field The utility model belongs to the technical field of motor transformation, and particularly relates to a rotor compensation structure based on a three-phase asynchronous motor to be renovated into a permanent magnet motor. Background Meanwhile, the permanent magnet motor has a simple structure, high reliability and low requirements on environment, can operate in severe environments such as high temperature, low temperature, humidity, dust and the like, and can be widely applied in more industries and fields, so that the three-phase asynchronous motor is renovated and transformed into the permanent magnet motor with great development potential. Because the permanent magnet motor has smaller size, when the shell of the three-phase asynchronous motor is utilized, the stator in the permanent magnet motor is adaptively installed in the length direction, and the stator groove on the inner wall of the shell cannot be matched with the stator of the permanent magnet motor, so that the stator installation stability is insufficient, and meanwhile, the heat dissipation performance of the permanent magnet motor is poor due to the mode of renovation and reconstruction. Disclosure of utility model The utility model aims to provide a rotor compensation structure based on a three-phase asynchronous motor to be renovated into a permanent magnet motor, so as to solve the technical problems that a stator of the permanent magnet motor cannot be installed in a shell in a matching way and the heat dissipation performance is poor in the prior art. The technical scheme includes that the rotor compensation structure based on the three-phase asynchronous motor is provided, the rotor compensation structure comprises a supporting vertical plate, a shielding sleeve, a limiting ring, a positioning sleeve and a heat dissipation assembly, wherein the supporting vertical plate, the shielding sleeve, the limiting ring, the positioning sleeve and the heat dissipation assembly are arranged in the shell, the supporting vertical plate is installed in a matched mode with the inner wall of the shell, the supporting vertical plate is provided with a mounting hole in rotary fit connection with a rotating shaft, the shielding sleeve is fixedly installed at one end of the supporting vertical plate and is arranged along the length direction of the shell, the shielding sleeve is installed in a matched mode with the inner wall of the shell and is used for shielding a stator groove on the inner wall of the shell, an annular flange used for limiting the mounting position of the stator is arranged on the shielding sleeve, the limiting ring is fixedly installed at one side, close to the stator, of the supporting vertical plate and is arranged around the mounting hole, the limiting ring is used for being abutted to one end of the stator, the positioning sleeve is fixedly installed at the other end of the supporting vertical plate and is arranged along the length direction of the shell, the positioning sleeve is installed in a matched mode with the inner wall of the shell, the spacing between the positioning sleeve and the opposite end of the shielding sleeve is consistent with the length of the shell, and the heat dissipation assembly is installed in the shell. In one possible implementation manner, the shielding sleeve further comprises an annular positioning groove formed in the inner wall of the shell, the supporting vertical plate and the positioning sleeve are installed in the annular positioning groove in a matched mode, and one half of the difference value of the outer diameters of the supporting vertical plate and the shielding sleeve is equal to the depth of the annular positioning groove. In one possible implementation manner, the end part of the positioning sleeve is provided with a fixing ring used for being matched with the end part of the shell, and the fixing ring is provided with a plurality of connecting holes. In one possible implementation manner, an extension cylinder is fixedly arranged on one side, away from the limiting ring, of the supporting vertical plate, the extension cylinder and the mounting hole are coaxially arranged, and the inner diameter of the extension cylinder is consistent with that of the mounting hole. In a possible implementation manner, a fixing ring used for being matched with the end part of the shell is arranged at the end part of the positioning sleeve, a plurality of connecting holes are formed in the fixing ring, liquid inlet holes and liquid return holes which are arranged in the radial direction are formed in the fixing ring, the heat dissipation assembly comprises a plurality of heat dissipation fins and cooling pipelines which are positioned in the positioning sleeve, the heat dissipation fins are fixedly arranged on one side, away from the limiting ring, of the supporting vertical plate,