CN220234436U - Stator and rotor pairing clamping fixture for permanent magnet synchronous variable frequency submersible motor - Google Patents
Stator and rotor pairing clamping fixture for permanent magnet synchronous variable frequency submersible motor Download PDFInfo
- Publication number
- CN220234436U CN220234436U CN202322337191.8U CN202322337191U CN220234436U CN 220234436 U CN220234436 U CN 220234436U CN 202322337191 U CN202322337191 U CN 202322337191U CN 220234436 U CN220234436 U CN 220234436U
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- permanent magnet
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 230000005389 magnetism Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a stator and rotor pairing clamping fixture of a permanent magnet synchronous variable frequency submersible motor, wherein an introducing block is arranged at the upper end of a stand, and a product end cover is fixed at the lower end of the stand in advance; the outer sleeve and the roller of the product bearing are fixed on the inner side of the product end cover; the lower end of the machine base is provided with a supporting cylinder, and the inner side of the product end cover is abutted with the outer side of the false cover; a guide block is sleeved at the shaft shoulder of the rotor, and a magnetism isolating strip is arranged at the outer side of the guide block; an inner sleeve of a product bearing is arranged at a bearing step of the rotor; the lower end of the magnetic isolation strip is fixed on the guide block, and the upper end of the magnetic isolation strip is attached to the outer side of the rotating shaft of the rotor; the dummy shaft is fixed on the axial end face of the bearing end of the rotor; the dummy shaft corresponds to the inner hole of the dummy cover. The utility model has the advantages that: the stator and rotor assembly problem of the permanent magnet motor is solved, and time and labor cost are saved on the premise of guaranteeing assembly quality; the bearing is divided into two parts, and the two parts are respectively arranged on the end cover and the rotor in advance, so that the bearing cannot be damaged.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a clamping fixture for mounting a rotor of a motor.
Background
With the rapid development of new materials, electromechanical integration, power electronics, computers, control theory and other various related new technologies, permanent magnet synchronous motors have developed a very wide application field. The explosion-proof three-phase permanent magnet synchronous variable frequency submersible motor adopts the latest electromagnetic scheme and structural scheme, a stator is of a normal coil structure, a permanent magnet is arranged in a rotor groove, the permanent magnet suction force in the rotor groove is large, and the stator and the rotor are difficult to assemble and cannot be aligned; in addition, since the bearing is previously mounted on the rotor, a slight deviation may cause great damage to the bearing, affecting the performance of the product.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a stator and rotor pairing assembly mold of a permanent magnet synchronous variable frequency submersible motor, which is characterized in that: an introducing block is arranged at the upper end of the machine base, and a product end cover is fixed at the lower end of the machine base in advance; the outer sleeve and the roller of the product bearing are fixed on the inner side of the product end cover; the lower end of the machine base is provided with a supporting cylinder, and the inner side of the product end cover is abutted with the outer side of the false cover; a guide block is sleeved at the shaft shoulder of the rotor, and a magnetism isolating strip is arranged at the outer side of the guide block; an inner sleeve of a product bearing is arranged at a bearing step of the rotor; the lower end of the magnetic isolation strip is fixed on the guide block, and the upper end of the magnetic isolation strip is attached to the outer side of the rotating shaft of the rotor; the dummy shaft is fixed on the axial end face of the bearing end of the rotor; the dummy shaft corresponds to the inner hole of the dummy cover.
The three introducing blocks are uniformly arranged at the upper end of the stand along the circumferential direction; the outer side of the lead-in block is positioned by a motor base spigot.
The gap between the outer diameter of the flange of the guide block and the stator core is smaller than 0.25mm.
The guide block comprises a flange, and a plurality of conical blocks are fixed at the lower end of the flange along the circumferential direction of the flange.
The lower end of the magnetic isolation strip is fixed on the conical block; the number of the magnetism isolating strips is multiple.
The inner sleeve of the bearing is fixed at the bearing step by a thermal expansion method.
The outer sleeve and the roller of the bearing are fixed on the inner side of the end cover of the product in advance by a thermal expansion method.
The utility model has the advantages that: the structure is simple, the operation is convenient, and the stator and rotor assembly problem of the permanent magnet motor is well solved by using the pair of assembled tires, and meanwhile, the time and the labor cost are saved on the premise of ensuring the assembly quality; in addition, divide into two parts with the bearing, install respectively on end cover and rotor in advance, owing to set up accurate guide structure, therefore, the bearing can not receive the damage, has guaranteed product quality.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of a lead-in block;
FIG. 3 is a schematic view of the structure of the guide block;
FIG. 4 is a schematic view of the structure of a magnetic separator;
FIG. 5 is a schematic diagram of a magnetic stripe radian detection device;
FIG. 6 is a schematic cross-sectional view of a dummy shaft;
FIG. 7 is a schematic cross-sectional view of a dummy cover.
Detailed Description
The utility model will be described in detail with reference to the accompanying drawings, wherein the upper end of the machine base 13 is provided with the introducing block 1, and the lower end of the machine base is pre-fixed with the product end cover 10; the outer sleeve and the roller 11 of the product bearing are fixed on the inner side of the product end cover; the lower end of the stand is provided with a supporting cylinder 6, and the height of the supporting cylinder is required to ensure that the lower end of the rotor does not contact the ground; the inner side of the product end cover is abutted with the outer side of the false cover 5; a guide block 2 is sleeved at the shaft shoulder of the rotor, and a magnetism isolating strip 3 is arranged at the outer side of the guide block; an inner sleeve 12 of the product bearing is arranged at the bearing step of the rotor; the lower end of the magnetic shielding strip 3 is fixed on the guide block 2, and the upper end is attached to the outer side of the rotating shaft 91 of the rotor; the dummy shaft 4 is fixed on the axial end face of the bearing end 92 of the rotor; the dummy shaft corresponds to the inner hole of the dummy cover; the dummy shaft is concentrically arranged with the rotor, the dummy cover and the product end cover, and the purpose is to prevent the rotor from being offset caused by the magnetic force by utilizing the guiding function between the dummy shaft and the dummy cover.
The three introducing blocks are uniformly arranged at the upper end of the stand along the circumferential direction; the outer side of the lead-in block is positioned by a motor base spigot.
The gap between the outer diameter of the flange 21 of the guide block and the stator core is smaller than 0.25mm.
The guide block comprises a flange, and a plurality of conical blocks 22 are fixed at the lower end of the flange 21 along the circumferential direction of the flange.
The lower end of the magnetic shielding strip is fixed on the conical block 22 through a screw; the number of the magnetism isolating strips is multiple.
In order to ensure that the radian of the magnetic isolation strip is consistent with that of the rotor, a magnetic isolation strip radian detection device is also arranged, the device comprises a cuboid 14, and a through hole consistent with that of the rotor is arranged on the cuboid so as to judge whether the radian of the magnetic isolation strip is within an allowable range or not through the through hole;
the inner sleeve of the bearing is fixed at the bearing step by a thermal expansion method.
The outer sleeve and the roller of the bearing are fixed on the inner side of the end cover of the product in advance by a thermal expansion method.
For protection, a wood plate 7 is provided above the lead-in block to prevent direct collision of the lead-in block when the rotor is slightly misaligned at the beginning of operation.
The principle of the utility model is as follows:
along with the movement of the rotor, before the rotor does not enter the inner diameter of the stator core 8, the rotor is guided by the inner diameter of the introducing block 1 so as to prevent collision to the end winding, the center line of the stator and rotor shaft is ensured to be on a line, after the rotor core is separated from the introducing block 1, the guide plate 2 enters the inner diameter of the stator core, the dummy shaft is matched with the dummy cover for positioning, and the rotor is smoothly assembled into the stator through the magnetism isolating effect of the magnetism isolating strip. The magnetic isolation strip is made of a white steel plate and plays a role in magnetic isolation; the test sample block of the magnetism isolating strip is detected and used before the magnetism isolating strip is assembled. The dummy shaft is fixedly connected with the product shaft, and the dummy cover is fixedly connected with the rear end cover of the product. Before the bearing inner sleeve does not enter the outer sleeve, the dummy shaft and the dummy cover are matched, so that damage to the bearing is reduced.
Claims (7)
1. The utility model provides a permanent magnet synchronous variable frequency submersible motor stator and rotor is to dress mould which characterized in that: an introducing block is arranged at the upper end of the machine base, and a product end cover is fixed at the lower end of the machine base in advance; the outer sleeve and the roller of the product bearing are fixed on the inner side of the product end cover; the lower end of the machine base is provided with a supporting cylinder, and the inner side of the product end cover is abutted with the outer side of the false cover; a guide block is sleeved at the shaft shoulder of the rotor, and a magnetism isolating strip is arranged at the outer side of the guide block; an inner sleeve of a product bearing is arranged at a bearing step of the rotor; the lower end of the magnetic isolation strip is fixed on the guide block, and the upper end of the magnetic isolation strip is attached to the outer side of the rotating shaft of the rotor; the dummy shaft is fixed on the axial end face of the bearing end of the rotor; the dummy shaft corresponds to the inner hole of the dummy cover.
2. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the three introducing blocks are uniformly arranged at the upper end of the stand along the circumferential direction; the outer side of the lead-in block is positioned by a motor base spigot.
3. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the gap between the outer diameter of the flange of the guide block and the stator core is smaller than 0.25mm.
4. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the guide block comprises a flange, and a plurality of conical blocks are fixed at the lower end of the flange along the circumferential direction of the flange.
5. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the lower end of the magnetic isolation strip is fixed on the conical block; the number of the magnetism isolating strips is multiple.
6. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the inner sleeve of the bearing is fixed at the bearing step by a thermal expansion method.
7. The stator and rotor assembly jig of the permanent magnet synchronous variable frequency submersible motor according to claim 1, wherein: the outer sleeve and the roller of the bearing are fixed on the inner side of the end cover of the product in advance by a thermal expansion method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337191.8U CN220234436U (en) | 2023-08-30 | 2023-08-30 | Stator and rotor pairing clamping fixture for permanent magnet synchronous variable frequency submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337191.8U CN220234436U (en) | 2023-08-30 | 2023-08-30 | Stator and rotor pairing clamping fixture for permanent magnet synchronous variable frequency submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220234436U true CN220234436U (en) | 2023-12-22 |
Family
ID=89179542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322337191.8U Active CN220234436U (en) | 2023-08-30 | 2023-08-30 | Stator and rotor pairing clamping fixture for permanent magnet synchronous variable frequency submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220234436U (en) |
-
2023
- 2023-08-30 CN CN202322337191.8U patent/CN220234436U/en active Active
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