CN215071843U - Megawatt-level ultrahigh-speed full-circle laminated rotor structure - Google Patents
Megawatt-level ultrahigh-speed full-circle laminated rotor structure Download PDFInfo
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- CN215071843U CN215071843U CN202121636826.9U CN202121636826U CN215071843U CN 215071843 U CN215071843 U CN 215071843U CN 202121636826 U CN202121636826 U CN 202121636826U CN 215071843 U CN215071843 U CN 215071843U
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- rotor core
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- speed full
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- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 6
- 238000009826 distribution Methods 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000003475 lamination Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model discloses a megawatt level hypervelocity full circle lamination rotor structure, including rotor core, rotor core folds for full circle no hole blade of silicon steel and presses and form, and rotor core both ends assembly end links, end links outer end assembly flanged's semi-axis forms whole rotor with rotor core, end links, flanged's semi-axis tensioning through take-up screw, and the outer terminal surface cover of semi-axis is equipped with the seal ring. The utility model discloses a rotor core folds for full circle does not have hole blade of silicon steel and presses and forms, and rotor core both ends assembly end links, and the semi-axis of end links outer end assembly flanged forms whole rotor through the tensioning screw with the semi-axis tensioning of rotor core, end links, flanged, because the iron core need not cooperate with the axle, can satisfy the critical rotational speed requirement of rotor of the hypervelocity asynchronous machine of far exceeding rated speed.
Description
Technical Field
The utility model relates to a megawatt level hypervelocity full circle lamination rotor structure.
Background
The megawatt-level alternating current asynchronous motor rotor generally comprises a rotating shaft, an iron core, a guide bar and an end ring, wherein the iron core is of a circular ring structure with an inner hole, the shaft is of an integral structure, the inner circle of the iron core penetrates through the shaft and is in interference fit with the shaft, the guide bar and the end ring can be of copper bars or cast aluminum structures, and the rotor with the structure is mainly suitable for a rigid rotor and also can be partially suitable for a flexible rotor with lower speed. Due to the limitation of the matching structure of the iron core and the shaft, the requirement of the critical rotating speed of the rotor cannot be met for the ultra-high-speed asynchronous motor with far excess rated rotating speed.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a megawatt level hypervelocity full circle lamination rotor structure of simple structure, safe and reliable.
The utility model provides a technical scheme of above-mentioned problem is: the utility model provides a megawatt level hypervelocity full circle lamination rotor structure, includes rotor core, rotor core is laminated for full circle no hole silicon steel and is formed, and rotor core both ends assembly end links, and the semi-axis of end link outer end assembly flanged forms whole rotor through the tensioning screw with rotor core, end link, the semi-axis tensioning of flanged, and the outer terminal surface cover of semi-axis is equipped with the seal ring.
According to the megawatt-level ultrahigh-speed full-circle laminated rotor structure, two circles of first circular holes which are unequal in number and are uniformly distributed are formed in the circumference of the rotor core.
In the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the end ring is of a full-circle structure, and two circles of inner holes matched with the first round holes are formed in the circumference of the end ring.
According to the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the conducting bars are assembled in the circle of first circular holes of the rotor core, which are located on the outer side, the two ends of each conducting bar are provided with the notches, and the conducting bars and the circle of inner holes of the end rings, which are located on the outer side, are connected in an expanding manner.
In the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the end face of the half shaft is provided with a circle of second round holes which are matched with the inner holes of the end rings on the inner sides and are distributed uniformly, wherein the second round holes are unequal in number.
According to the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the material of the tensioning screw rod is alloy steel, the two ends of the tensioning screw rod are provided with thread structures, the tensioning screw rod sequentially penetrates through the second round hole in the end face of the half shaft, the inner hole in the inner side of the end ring and the first round hole in the inner side of the rotor core.
In the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the range of the diameter size of the distribution circle of the first round hole of the rotor core positioned at the outer side is 60% -75% of the outer diameter size of the rotor; the value range of the diameter size of a distribution circle of a circle of inner ring of the end ring positioned at the outer side is 60% -75% of the outer diameter size of the rotor; the value range of the diameter size of the distribution circle of the second round hole on the end face of the half shaft is 60% -75% of the outer diameter size of the rotor.
According to the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the conducting bars are of a circular conducting bar structure, and the range of the outer diameter of the conducting bars is 4% -7% of the outer diameter of the rotor.
According to the megawatt-level ultrahigh-speed full-circle laminated rotor structure, the range of the outer diameter of the tensioning screw is 4% -7% of the outer diameter of the rotor.
The beneficial effects of the utility model reside in that: the utility model discloses a rotor core folds for full circle does not have hole blade of silicon steel and presses and forms, and rotor core both ends assembly end links, and the semi-axis of end links outer end assembly flanged forms whole rotor through the tensioning screw with the semi-axis tensioning of rotor core, end links, flanged, because the iron core need not cooperate with the axle, can satisfy the critical rotational speed requirement of rotor of the hypervelocity asynchronous machine of far exceeding rated speed.
Drawings
Fig. 1 is a schematic view of the general assembly structure of the present invention.
Fig. 2 is a schematic structural diagram of a rotor sheet.
Fig. 3 is an assembly view of the rotor core.
Fig. 4 is a schematic structural view of the half shaft.
Fig. 5 is a schematic structural view of a rotor bar.
Fig. 6 is a schematic structural view of an end ring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, a megawatt-level superspeed full-circle laminated rotor structure comprises a rotor core 1, wherein the rotor core 1 is formed by laminating a full-circle silicon steel sheet without an inner hole, end rings 2 are assembled at two ends of the rotor core 1, a semi-axis 4 with a flange is assembled at the outer end of each end ring 2, the rotor core 1, the end rings 2 and the semi-axis 4 with the flange are tensioned through tensioning screws 6 to form a whole rotor, and a sealing ring 7 is sleeved on the outer end face of each semi-axis 4.
As shown in fig. 2 and 3, two circles of first circular holes 8 with different numbers and uniform distribution are formed on the circumference of the rotor core 1. The value range of the diameter size of the distribution circle of the first round hole of the rotor core 1 positioned at the outer side is 60% -75% of the outer diameter size of the rotor.
As shown in fig. 6, the end ring 2 is a full circle structure, and the circumference of the end ring 2 is provided with two circles of inner holes 9 matching with the first round hole 8. The value range of the diameter size of the distribution circle of the inner ring of the circle, which is positioned at the outer side of the end ring 2, is 60% -75% of the outer diameter size of the rotor.
As shown in fig. 5, the conducting bars 3 are assembled in a circle of first circular holes on the outer side of the rotor core 1, two ends of the conducting bars 3 are provided with notches, and the conducting bars 3 and a circle of inner holes on the outer side of the end ring 2 are connected by expansion. The conducting bar 3 is of a round conducting bar 3 structure, and the value range of the outer diameter of the conducting bar 3 is 4% -7% of the outer diameter of the rotor.
As shown in fig. 4, the end face of the half shaft 4 is provided with a circle of second circular holes 10 which are matched with the inner hole of the end ring 2 at the inner side and are distributed uniformly in different numbers. The diameter of a circle of second round holes 10 on the end face of the half shaft 4 ranges from 60% to 75% of the outer diameter of the rotor.
The material of the tension screw 6 is non-magnetic high-strength alloy steel, the two ends of the tension screw 6 are provided with thread structures, and the tension screw 6 sequentially penetrates through a second round hole 10 on the end face of the half shaft 4, an inner hole on the inner side of the end ring 2 and a first round hole on the inner side of the rotor core 1. The range of the outer diameter of the tension screw 6 is 4% -7% of the outer diameter of the rotor.
Claims (9)
1. A megawatt-level ultrahigh-speed full-circle laminated rotor structure is characterized in that: including rotor core, rotor core is that whole circle does not have hole blade of silicon steel and folds and press and form, and rotor core both ends assembly end links, and the semi-axis of flange is assembled to the end link outer end, and through taut screw rod with rotor core, end link, the semi-axis of flange taut formation whole rotor, the outer terminal surface cover of semi-axis is equipped with the seal ring.
2. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 1, wherein: the circumference of the rotor core is provided with two circles of first round holes which are unequal in number and are uniformly distributed.
3. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 2, wherein: the end ring is of a full-circle structure, and two circles of inner holes matched with the first round holes are formed in the circumference of the end ring.
4. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 3, wherein: the conducting bar is assembled in a circle of first round holes of the rotor core, which are positioned on the outer side, notches are formed at two ends of the conducting bar, and the conducting bar and an end ring are positioned in a circle of inner holes of the outer side and are connected in an expanding manner.
5. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 4, wherein: the end face of the half shaft is provided with a circle of second round holes which are matched with the inner holes of the end ring at the inner side, have different numbers and are uniformly distributed.
6. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 5, wherein: the material of the tensioning screw rod is alloy steel, the two ends of the tensioning screw rod are provided with thread structures, and the tensioning screw rod sequentially penetrates through a second round hole in the end face of the half shaft, an inner hole in which the end ring is located and a first round hole in which the rotor core is located.
7. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 5, wherein: the value range of the diameter size of a circle of first round holes of the rotor core, which is positioned at the outer side, is 60% -75% of the outer diameter size of the rotor; the value range of the diameter size of a distribution circle of a circle of inner ring of the end ring positioned at the outer side is 60% -75% of the outer diameter size of the rotor; the value range of the diameter size of the distribution circle of the second round hole on the end face of the half shaft is 60% -75% of the outer diameter size of the rotor.
8. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 5, wherein: the conducting bar adopts a round conducting bar structure, and the value range of the outer diameter of the conducting bar is 4% -7% of the outer diameter of the rotor.
9. The megawatt ultra-high speed full-circle laminated rotor structure as claimed in claim 6, wherein: the range of the outer diameter of the tensioning screw is 4% -7% of the outer diameter of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121636826.9U CN215071843U (en) | 2021-07-19 | 2021-07-19 | Megawatt-level ultrahigh-speed full-circle laminated rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121636826.9U CN215071843U (en) | 2021-07-19 | 2021-07-19 | Megawatt-level ultrahigh-speed full-circle laminated rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215071843U true CN215071843U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121636826.9U Active CN215071843U (en) | 2021-07-19 | 2021-07-19 | Megawatt-level ultrahigh-speed full-circle laminated rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215071843U (en) |
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2021
- 2021-07-19 CN CN202121636826.9U patent/CN215071843U/en active Active
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