CN219779881U - Internally-inserted permanent magnet motor rotor and permanent magnet motor with same - Google Patents
Internally-inserted permanent magnet motor rotor and permanent magnet motor with same Download PDFInfo
- Publication number
- CN219779881U CN219779881U CN202321128718.XU CN202321128718U CN219779881U CN 219779881 U CN219779881 U CN 219779881U CN 202321128718 U CN202321128718 U CN 202321128718U CN 219779881 U CN219779881 U CN 219779881U
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- iron core
- rotating shaft
- permanent magnet
- magnet motor
- screw rod
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model belongs to the technical field of motors, and particularly relates to an internal-insertion permanent magnet motor rotor and a permanent magnet motor with the same. Comprising the following steps: the rotating shaft, the iron core sleeved on the rotating shaft, and the fixing piece for fixing the relative positions of the rotating shaft and the iron core; the fixing piece comprises a shaft shoulder fixedly arranged on the rotating shaft and a collar movably sleeved on the rotating shaft, the shaft shoulder and the collar are located on two sides of the iron core, a screw rod I is in threaded fit with a threaded hole formed in the collar, and the screw rod I penetrates through a mounting hole formed in the rotating shaft. In this interpolation formula permanent magnet motor rotor's technical scheme, shoulder, lantern ring are located the left and right sides of iron core, and are spacing to the left and right sides position of iron core, through setting up the mounting, fix the relative position of iron core and pivot, easy operation when installing the iron core, after the installation in place, the position stability of iron core is high.
Description
Technical Field
The utility model belongs to the technical field of motors, and particularly relates to an internal-insertion permanent magnet motor rotor and a permanent magnet motor with the same.
Background
The permanent magnet motor is a synchronous motor which generates a synchronous rotating magnetic field by excitation of a permanent magnet, the permanent magnet is used as a rotor to generate the rotating magnetic field, and three-phase stator windings react through an armature under the action of the rotating magnetic field to induce three-phase symmetrical current.
In the technical scheme of the permanent magnet motor rotor with the patent name of CN114915066B, a rotor core is fixedly sleeved outside a motor rotating shaft and comprises a bottom silicon steel sheet and a plurality of magnetic steel punching sheets; all the bottom silicon steel sheets and the magnetic steel punching sheets are mutually overlapped.
In the existing rotor assembly process, a single silicon steel sheet is required to be laminated and fixed to form an iron core whole, then the rotating shaft is integrally connected with the iron core, the rotor has the defects of complex assembly process and poor connection stability of the rotating shaft and the iron core after assembly.
Disclosure of Invention
Aiming at the problems that the rotor in the prior art has complicated assembly process and poor connection stability of a rotating shaft and an iron core after assembly, the utility model provides the following technical scheme:
an interpolated permanent magnet motor rotor comprising: the rotating shaft, the iron core sleeved on the rotating shaft, and the fixing piece for fixing the relative positions of the rotating shaft and the iron core;
the fixing piece comprises a shaft shoulder fixedly arranged on the rotating shaft and a lantern ring movably sleeved on the rotating shaft, the shaft shoulder and the lantern ring are positioned on two sides of the iron core, a screw rod I is in threaded fit with a threaded hole formed in the lantern ring, and the screw rod I penetrates through a mounting hole formed in the rotating shaft;
the fixing piece further comprises a second screw rod connected inside the mounting hole, a nut is matched with the second screw rod in a threaded mode, and the movable end of the nut abuts against the first screw rod.
The shoulder and the lantern ring are positioned on the left side and the right side of the iron core, the left side and the right side of the iron core are limited, the relative positions of the iron core and the rotating shaft are fixed by the fixing piece, the operation is simple when the iron core is installed, and the position stability of the iron core is high after the iron core is installed in place.
As the optimization of the technical scheme, end plates are arranged between the iron core and the shaft shoulder and between the iron core and the lantern ring, and fan blades are arranged on the end plates.
The stability of the position of the iron core during installation is improved.
As the optimization of the technical scheme, the rotating shaft is provided with the limiting groove body, the iron core and the central hole of the rotating shaft sleeved by the end plate are provided with the block body, and the block body is matched with the limiting groove body.
The iron core and the end plate are prevented from rotating on the rotating shaft, and the stability of the relative position between the iron core and the rotating shaft is improved.
Preferably, the first screw is flat at a position abutting against the nut.
And the contact area between the screw cap and the first screw rod is increased.
A permanent magnet motor comprising an interpolated permanent magnet motor rotor as claimed in any one of the preceding claims.
The beneficial effects of the utility model are as follows:
in this interpolation formula permanent magnet motor rotor's technical scheme, shoulder, lantern ring are located the left and right sides of iron core, and are spacing to the left and right sides position of iron core, through setting up the mounting, fix the relative position of iron core and pivot, easy operation when installing the iron core, after the installation in place, the position stability of iron core is high.
The permanent magnet motor with the rotor of the internal-inserted permanent magnet motor has the advantages of simple installation and high component stability.
Drawings
FIG. 1 shows a cross-sectional view of an embodiment of an internal permanent magnet motor rotor;
FIG. 2 is a right side view of the spindle of FIG. 1;
fig. 3 is a side view showing the structure of the core of fig. 1;
fig. 4 shows a schematic structural view of the end plate of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments.
Example 1
FIG. 1 is a schematic diagram of an internal permanent magnet motor rotor according to one embodiment of the present utility model; FIG. 2 is a right side view schematically showing a rotary shaft as an embodiment of the present utility model; fig. 3 is a side view showing the structure of an iron core as an embodiment of the present utility model; fig. 4 is a schematic view showing the structure of an end plate as an embodiment of the present utility model.
An interpolated permanent magnet motor rotor comprising: the rotary shaft 10, the iron core 20 sleeved on the rotary shaft 10, and the fixing piece 30 for fixing the relative positions of the rotary shaft 10 and the iron core 20, wherein the iron core 20 is provided with a permanent magnet groove for installing a permanent magnet, and two ends of the permanent magnet groove are communicated with each other and provided with a magnetism isolating air groove;
the fixing piece 30 comprises a shaft shoulder 31 fixedly arranged on the rotating shaft 10 and a lantern ring 32 movably sleeved on the rotating shaft 10, wherein the shaft shoulder 31 and the lantern ring 32 are positioned on two sides of the iron core 20, a screw rod I33 is in threaded fit with a threaded hole formed in the lantern ring 32, and the screw rod I33 penetrates through a mounting hole 11 formed in the rotating shaft 10; the fixing member 30 further comprises a second screw rod 34 connected to the inside of the mounting hole 11, the second screw rod 34 is in threaded fit with a nut 35, and the movable end of the nut 35 abuts against the first screw rod 33.
In the technical scheme of the rotor of the internal permanent magnet motor, the shaft shoulder 31 and the lantern ring 32 are positioned on the left side and the right side of the iron core 20, the left side and the right side of the iron core 20 are limited, the relative positions of the iron core 20 and the rotating shaft 10 are fixed by the fixing piece 30, the operation is simple when the iron core 20 is installed, and the position stability of the iron core 20 is high after the installation is in place.
The iron core 20 and the sleeve ring 32 are sleeved on the rotating shaft 10, the first screw rod 33 is in threaded fit with the sleeve ring 32, at the moment, the first screw rod 33 penetrates through the mounting hole 11, the nut 35 in threaded fit with the second screw rod 34 rotates on the second screw rod 34 until the nut abuts against the first screw rod 33, the sleeve ring 32 is pushed to move towards the iron core 20, the iron core 20 abuts against the iron core 20 tightly until the shaft shoulder 31 is arranged between the iron core 20 and the iron core 20, and the iron core 20 is mounted in place.
Referring to fig. 1 and 4, in order to improve stability of the position of the iron core 20 when it is mounted, end plates 40 are provided between the iron core 20 and the shoulder 31, and between the iron core 20 and the collar 32; when the iron core 20 is mounted, the left end plate 40, the iron core 20, and the right end plate 40 are sequentially fitted over the rotary shaft 10, and when the shoulder 31, the left end plate 40, the iron core 20, the right end plate 40, and the collar 32 are in a tight contact state, the iron core 20 is mounted in place.
The end plate 40 is provided with a fan 41, the fan 41 is arranged, and when the rotating shaft 10 rotates, the fan 41 is driven to synchronously rotate, so that heat dissipation is performed on the iron core 20.
Referring to fig. 1 and 2, in order to improve stability of a relative position between an iron core 20 and a rotating shaft 10, the rotating shaft 10 is provided with a limiting groove body 12, the limiting groove body 12 is arranged on a main body section of the rotating shaft 10, the radius of the main body section of the rotating shaft 10 is smaller than that of an edge section of the rotating shaft 10, one end of the limiting groove body 12 is propped against a shaft shoulder 31, the other end extends to a joint of the main body section and the edge section, a block is arranged at a central hole of the rotating shaft 10 sleeved with the iron core 20 and an end plate 40, and the block is matched with the limiting groove body 12; when the iron core 20 and the end plate 40 are installed, the iron core 20 and the end plate 40 are sleeved on the rotating shaft 10, and the block is inserted into the limiting groove body 12 and matched with the limiting groove body, so that the iron core 20 and the end plate 40 are prevented from rotating on the rotating shaft 10.
Referring to fig. 1, in order to improve stability of a position of the screw first 33 against the nut 35, a position of the screw first 33 against the nut 35 is provided as a plane, and a contact area between the nut 35 and the screw first 33 is improved.
The permanent magnet motor comprises the inserted permanent magnet motor rotor, and the permanent magnet motor with the inserted permanent magnet motor rotor has the advantages of simplicity in installation and high component stability.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting.
Claims (5)
1. An interpolated permanent magnet motor rotor comprising: the device comprises a rotating shaft (10), an iron core (20) sleeved on the rotating shaft (10), and a fixing piece (30) for fixing the relative positions of the rotating shaft (10) and the iron core (20);
the fixing piece (30) comprises a shaft shoulder (31) fixedly arranged on the rotating shaft (10) and a collar (32) movably sleeved on the rotating shaft (10), the shaft shoulder (31) and the collar (32) are positioned on two sides of the iron core (20), a first screw rod (33) is in threaded fit with a threaded hole formed in the collar (32), and the first screw rod (33) penetrates through a mounting hole (11) formed in the rotating shaft (10);
the fixing piece (30) further comprises a second screw rod (34) connected to the inside of the mounting hole (11), a nut (35) is in threaded fit with the second screw rod (34), and the movable end of the nut (35) abuts against the first screw rod (33).
2. The internal-insertion permanent magnet motor rotor according to claim 1, wherein end plates (40) are arranged between the iron core (20) and the shaft shoulder (31) and between the iron core (20) and the collar (32), and the end plates (40) are provided with fan blades (41).
3. The rotor of an internal insertion permanent magnet motor according to claim 2, wherein the rotating shaft (10) is provided with a limiting groove body (12), and a block body is arranged at a central hole of the rotating shaft (10) sleeved by the iron core (20) and the end plate (40) and is matched with the limiting groove body (12).
4. An internal permanent magnet motor rotor according to claim 1, characterized in that the position of the screw one (33) against the nut (35) is arranged as a plane.
5. A permanent magnet machine comprising a rotor having an internal permanent magnet machine according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321128718.XU CN219779881U (en) | 2023-05-11 | 2023-05-11 | Internally-inserted permanent magnet motor rotor and permanent magnet motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321128718.XU CN219779881U (en) | 2023-05-11 | 2023-05-11 | Internally-inserted permanent magnet motor rotor and permanent magnet motor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219779881U true CN219779881U (en) | 2023-09-29 |
Family
ID=88133833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321128718.XU Active CN219779881U (en) | 2023-05-11 | 2023-05-11 | Internally-inserted permanent magnet motor rotor and permanent magnet motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219779881U (en) |
-
2023
- 2023-05-11 CN CN202321128718.XU patent/CN219779881U/en active Active
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