CN212085905U - Aluminum bar rotor - Google Patents
Aluminum bar rotor Download PDFInfo
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- CN212085905U CN212085905U CN201922327495.XU CN201922327495U CN212085905U CN 212085905 U CN212085905 U CN 212085905U CN 201922327495 U CN201922327495 U CN 201922327495U CN 212085905 U CN212085905 U CN 212085905U
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- aluminum bar
- shaped inner
- iron core
- inner fan
- rotor
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Abstract
The invention aims to provide a manufacturing process of an aluminum bar rotor, which can fill the gap of the manufacturing technology of the aluminum bar rotor; the novel iron core comprises a shaft 1, an iron core 2, a key 3, an F-shaped inner fan 4, an L-shaped inner fan 5, a self-tapping screw 6, an aluminum bar 7, a conducting ring 8 and a welding bead 9; the iron core 2 is fixed above the shaft 1 through a key 3; the aluminum bar 7 is arranged in the iron core 2; the conducting ring 8, the F-shaped inner fan 4 and the L-shaped inner fan 5 are sequentially arranged from the middle part of the aluminum bar 7 to two ends; the weld bead 9 is arranged on the conductive ring 8; the invention has the beneficial effects that: 1. the material cost is reduced; 2. after the weight of the rotor is reduced, the sliding bearing can be replaced by the rolling bearing, so that the cost is reduced; 3. the squirrel-cage electric conductivity sensor is very suitable for occasions requiring squirrel-cage electric conductivity to be relatively low, such as a variable-frequency starting motor.
Description
Technical Field
The invention belongs to the technical field of motor manufacturing, and particularly relates to an aluminum bar rotor.
Background
The common manufacturing process of the existing three-phase asynchronous motor rotor comprises the following steps: and brazing the copper bar and the copper conducting ring to manufacture a copper bar rotor or manufacturing a cast aluminum rotor by die casting or centrifugal casting. The cast aluminum rotor die-casting or centrifugal casting process is mainly applied to small three-phase asynchronous motors due to the technical limitations that shrinkage air holes are easy to occur. The copper bar rotor commonly used in the large three-phase asynchronous motor at present is high in cost, and is not beneficial to enterprises to realize cost saving.
The Chinese invention patent is disclosed, the publication number is: CN107086734A, patent name: production technology, electric motor rotor and motor of electric motor rotor, application date: 20170527, it discloses a production technology of motor rotor, motor rotor and motor, the production technology of motor rotor includes the steps: spraying magnetic powder into each magnetic groove of the rotor iron core, and compacting the magnetic powder to enable the magnetic powder to fill each position of the magnetic groove; and solidifying the magnetic powder filled in the magnetic groove by a sintering mode to form a magnet. Therefore, according to the production process of the motor rotor provided by the invention, the motor rotor formed by the production process has better magnet magnetism and uniform magnetic distribution, and can effectively improve the motor performance.
Aluminum bar rotors and their related manufacturing techniques have not yet been developed.
SUMMERY OF THE UTILITY MODEL
The invention aims to provide an aluminum bar rotor, which can fill the gap of the aluminum bar rotor manufacturing technology.
The invention provides an aluminum bar rotor, which comprises a shaft 1, an iron core 2, a key 3, an F-shaped inner fan 4, an L-shaped inner fan 5, a self-tapping screw 6, an aluminum bar 7, a conducting ring 8 and a welding bead 9, wherein the iron core 2 is arranged on the shaft;
the iron core 2 is fixed above the shaft 1 through a key 3; the aluminum bar 7 is arranged in the iron core 2; the conducting ring 8, the F-shaped inner fan 4 and the L-shaped inner fan 5 are sequentially arranged from the middle part of the aluminum bar 7 to two ends; the weld bead 9 is provided on the conductive ring 8.
Preferably, the weld bead 9 is in a V-shaped configuration.
Preferably, the F-shaped inner fan 4 is symmetrically arranged.
Preferably, the L-shaped inner fan 5 is symmetrically arranged.
The invention has the beneficial effects that: 1. the material cost is reduced; 2. after the weight of the rotor is reduced, the sliding bearing can be replaced by the rolling bearing, so that the cost is reduced; 3. the squirrel-cage electric conductivity sensor is very suitable for occasions requiring squirrel-cage electric conductivity to be relatively low, such as a variable-frequency starting motor.
Drawings
FIG. 1 is a schematic structural view of an aluminum bar rotor;
in the figure, the position of the upper end of the main shaft,
1. a shaft; 2. an iron core; 3. a key; 4. an F-shaped inner fan; 5. an L-shaped inner fan; 6. self-tapping screws; 7. an aluminum bar; 8. conducting rings; 9. and (7) welding a bead.
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are provided for illustrative and explanatory purposes only and should not be construed as limiting the scope of the present invention in any way.
The invention provides an aluminum bar rotor, which comprises a shaft 1, an iron core 2, a key 3, an F-shaped inner fan 4, an L-shaped inner fan 5, a self-tapping screw 6, an aluminum bar 7, a conducting ring 8 and a welding bead 9, wherein the iron core 2 is arranged on the shaft;
the iron core 2 is fixed above the shaft 1 through a key 3; the aluminum bar 7 is arranged in the iron core 2; the conducting ring 8, the F-shaped inner fan 4 and the L-shaped inner fan 5 are sequentially arranged from the middle part of the aluminum bar 7 to two ends; the weld bead 9 is provided on the conductive ring 8.
In this embodiment, the bead 9 is preferably disposed in a V shape.
Preferably, in this embodiment, the F-shaped inner fans 4 are symmetrically arranged.
Preferably, in this embodiment, the L-shaped inner fans 5 are symmetrically arranged.
The manufacturing process for the aluminum bar rotor comprises the following steps:
s1: penetrating the aluminum bar 7 into the iron core 2;
s2: then, the aluminum bar 7 penetrating into the iron core 2 is in seam insertion butt joint with the conducting ring 8;
s3: a V-shaped opening is formed in the conducting ring 8;
s4: and performing surfacing at the V port.
The surfacing process in S4 is MIG (metal inert gas welding) after preheating.
The overlaying process in S4 is MIG circular seam welding on the top layer of the welding bead 9.
The overlaying process in S4 is MIG circumferential seam straight welding on the bottom layer of the welding bead 9.
The aluminum bar 7 and the conductive ring 8 are made of 6 series aluminum magnesium alloy, wherein the aluminum bar 7 is formed by hot extrusion, and the conductive ring 8 is formed by forging machining. The materials and the manufacturing process of other parts are the same as those of the copper bar rotor.
The welding material is base material 6061T6, solder ER4043
The shielding gas was Ar (argon) (99.99%). Temperature: the preheating temperature of the parent metal is 180 ℃, and the interlayer temperature is less than or equal to 300 ℃. The working environment is as follows: the temperature is 5-25 ℃, and the humidity is less than or equal to 65%.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (4)
1. An aluminum bar rotor comprises a shaft (1), an iron core (2), a key (3), an F-shaped inner fan (4), an L-shaped inner fan (5), a self-tapping screw (6), an aluminum bar (7), a conducting ring (8) and a welding bead (9);
it is characterized in that the preparation method is characterized in that,
the iron core (2) is fixed above the shaft (1) through a key (3); the aluminum bar (7) is arranged in the iron core (2); the conducting ring (8), the F-shaped inner fan (4) and the L-shaped inner fan (5) are sequentially arranged from the middle part of the aluminum bar (7) to two ends; the weld bead (9) is arranged on the conductive ring (8).
2. An aluminium bar rotor according to claim 1, characterized in that the weld beads (9) are V-shaped.
3. An aluminium bar rotor according to claim 2, characterized in that the F-shaped inner sectors (4) are arranged symmetrically.
4. An aluminium bar rotor according to claim 3, characterized in that the L-shaped inner sectors (5) are arranged symmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327495.XU CN212085905U (en) | 2019-12-22 | 2019-12-22 | Aluminum bar rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922327495.XU CN212085905U (en) | 2019-12-22 | 2019-12-22 | Aluminum bar rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212085905U true CN212085905U (en) | 2020-12-04 |
Family
ID=73565705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922327495.XU Active CN212085905U (en) | 2019-12-22 | 2019-12-22 | Aluminum bar rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212085905U (en) |
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2019
- 2019-12-22 CN CN201922327495.XU patent/CN212085905U/en active Active
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