CN205753729U - Large-scale ac excitation generating motor rotor slot wedge structure - Google Patents
Large-scale ac excitation generating motor rotor slot wedge structure Download PDFInfo
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- CN205753729U CN205753729U CN201620441371.8U CN201620441371U CN205753729U CN 205753729 U CN205753729 U CN 205753729U CN 201620441371 U CN201620441371 U CN 201620441371U CN 205753729 U CN205753729 U CN 205753729U
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- major trough
- rotor core
- motor rotor
- slot wedge
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Abstract
The purpose of this utility model is to disclose a kind of large-scale ac excitation generating motor rotor slot wedge structure.The secondary slot wedge that this structure is made up of aluminum major trough wedge and high-strength insulating material forms, and is positioned at the position, notch wedge portion of generator motor rotor core.The inner side of major trough wedge has groove, is used for placing secondary slot wedge.The inner side of major trough wedge uses inclined-plane to coordinate with secondary slot wedge, is fixed in the groove of rotor core by generator motor rotor bar.The cross section of major trough wedge is dove tail-shaped, coordinates the notch shape of rotor core, and the inclined-plane of major trough wedge Columba livia tail matches with the inclined-plane of rotor core notch, and when being rotated by unit, in rotor core groove, the centrifugal force of bar is delivered in rotor core.The left and right sides width of major trough wedge exceedes the part of rotor core width of rebate, in the position of respective rotor core ventilation ditch, all has vent, prevents from keeping out the wind.According to generator motor rotor core axial length dimension, major trough wedge is divided into multistage with secondary slot wedge, it is simple to manufactures and installs.
Description
Technical field
This utility model relates to pumped-storage power generation motor technology field, it is provided that a kind of large-scale ac excitation generating motor rotor slot wedge structure.
Background technology
Large-scale ac excitation generating rotor core uses fanning strip lamination process, fanning strip has a number of rotor slot, is used for disposing rotor bar.Rotor bar is copper bar formula bar, during unit operation, by three-phase AC excitation electric current in rotor bar, to form rotating excitation field.
During ac excitation generating motor running, rotor bar bears gravity, electromagnetic force, thermal stress, the centrifugal force etc. of unit rotation generation.Rotor slot wedge is as the ingredient of rotor bar fixed structure for slot part, for bearing centrifugal force and the electromagnetic force that rotor bar rotates, make rotor bar fixation in rotor slot, prevent rotor bar vibration from causing insulation abrasion, improve rotor bar insulation life, ensure that unit long-term safety is run.
Summary of the invention
The purpose of this utility model is to disclose a kind of large-scale ac excitation generating motor rotor slot wedge structure, and it has simple in construction, the feature such as safe and reliable.
The technical solution of the utility model is:
A kind of large-scale ac excitation generating motor rotor slot wedge structure, it is characterised in that the secondary slot wedge that this structure is made up of aluminum major trough wedge and high-strength insulating material forms, and is positioned at the position, notch wedge portion of generator motor rotor core.Major trough wedge is positioned at outside secondary slot wedge.The inner side of major trough wedge has groove, is used for placing secondary slot wedge.The inner side of major trough wedge uses inclined-plane to coordinate with secondary slot wedge, is fixed in the groove of rotor core by generator motor rotor bar.
Described large-scale ac excitation generating motor rotor slot wedge structure, the cross section of major trough wedge is dove tail-shaped, coordinate the notch shape of generator motor rotor core, the inclined-plane of major trough wedge Columba livia tail matches with the inclined-plane of generator motor rotor core notch, and when being rotated by unit, in generator motor rotor core groove, the centrifugal force of bar is delivered in rotor core.
Described large-scale ac excitation generating motor rotor slot wedge structure, the left and right sides width of major trough wedge exceedes the part of generator motor rotor core width of rebate, in the position of corresponding generator motor rotor core air duct, all has vent, prevents from keeping out the wind.
Described large-scale ac excitation generating motor rotor slot wedge structure, according to generator motor rotor core axial length dimension, major trough wedge is divided into multistage with secondary slot wedge, it is simple to manufactures and installs.
Technique effect
The most large-scale ac excitation generating motor rotor slot wedge structure, solves rotor bar fixation problem in generator motor rotor core groove, prevents rotor bar vibration from causing insulation abrasion, improves rotor bar insulation life, ensures that unit long-term safety is run.
2. the inclined-plane of major trough wedge Columba livia tail matches with the inclined-plane of generator motor rotor core notch, increases the contact surface of cooperation, and when being more conducive to rotate unit, in generator motor rotor core groove, the centrifugal force of bar is delivered in rotor core；Major trough wedge uses inclined-plane to coordinate with secondary slot wedge, and secondary slot wedge is positioned at the groove inside major trough wedge, improves the urgent effect of major trough wedge and secondary slot wedge, makes rotor bar be securely fixed in generator motor rotor core groove；According to rotor core length dimension, major trough wedge is divided into multistage with secondary slot wedge, more conducively the manufacture of slot wedge and installation.
3. the left and right sides width of major trough wedge exceedes the part of generator motor rotor core width of rebate, in the position of corresponding generator motor rotor core air duct, all has vent, prevents from keeping out the wind so that ventilation wind path is more smooth and easy, improves unit ventilating and cooling effect.
Accompanying drawing explanation
Fig. 1 this utility model structural representation.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 major trough wedge front view.
Fig. 5 is the C-C sectional view of Fig. 4.
Fig. 6 is the D-D sectional view of Fig. 5.
Fig. 7 is the E direction view of Fig. 5.
Fig. 8 pair slot wedge structure figure.
Parts label declaration in accompanying drawing:
1. major trough wedge；2. secondary slot wedge；3. rotor core.
Detailed description of the invention
The secondary slot wedge 2 that large-scale ac excitation generating motor rotor slot wedge structure is made up of aluminum major trough wedge 1 and high-strength insulating material forms, and is positioned at the position, notch wedge portion of generator motor rotor core 3, as shown in Figure 1 to Figure 3.Major trough wedge is positioned at outside secondary slot wedge.Major trough wedge uses inclined-plane to coordinate with secondary slot wedge, and secondary slot wedge is positioned at the groove inside major trough wedge, improves the urgent effect of major trough wedge and secondary slot wedge, makes rotor bar be securely fixed in generator motor rotor core groove.As shown in Fig. 4 to Fig. 8, the cross section of major trough wedge is dove tail-shaped, coordinate the notch shape of generator motor rotor core, the inclined-plane of major trough wedge Columba livia tail matches with the inclined-plane of generator motor rotor core notch, increasing the contact surface of cooperation, when being more conducive to rotate unit, in generator motor rotor core groove, the centrifugal force of bar is delivered in rotor core.The left and right sides width of major trough wedge exceedes the part of generator motor rotor core width of rebate, in the position of corresponding generator motor rotor core air duct, all has vent, prevents from keeping out the wind so that ventilation wind path is more smooth and easy, improves unit ventilating and cooling effect.According to generator motor rotor core axial length dimension, major trough wedge is divided into multistage with secondary slot wedge, it is simple to manufactures and installs.
Finally, protection domain of the present utility model is not limited to the above embodiments.Obviously, those skilled in the art can carry out various change and deformation without deviating from scope and spirit of the present utility model to this utility model.If these are changed and deformation belongs in the range of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these changes and deformation.
Claims (4)
1. one kind large-scale ac excitation generating motor rotor slot wedge structure, it is characterised in that
The secondary slot wedge (2) being made up of aluminum major trough wedge (1) and high-strength insulating material forms, and it is positioned at
The position, notch wedge portion of generator motor rotor core (3)；Major trough wedge (1) is positioned at secondary slot wedge (2)
Outside；The inner side of major trough wedge (1) has groove, is used for placing secondary slot wedge (2)；Major trough wedge (1)
Inner side use inclined-plane to coordinate with secondary slot wedge (2), generator motor rotor bar is fixed on turn
In the groove of son (3) unshakable in one's determination.
Large-scale ac excitation generating motor rotor slot wedge the most according to claim 1 is tied
Structure, it is characterised in that the cross section of major trough wedge (1) is dove tail-shaped, coordinates generator motor to turn
The notch shape of son (3) unshakable in one's determination, the inclined-plane of major trough wedge (1) Columba livia tail and electricity generation and electromotion machine rotor ferrum
The inclined-plane of the heart (3) notch matches, generator motor rotor core groove interior lines when being rotated by unit
The centrifugal force of rod is delivered in rotor core.
Large-scale ac excitation generating motor rotor slot wedge the most according to claim 1 is tied
Structure, it is characterised in that the left and right sides width of major trough wedge (1) exceedes electricity generation and electromotion machine rotor ferrum
The part of the heart (3) width of rebate, in the position of corresponding generator motor rotor core air duct,
All have vent, prevent from keeping out the wind.
Large-scale ac excitation generating motor rotor slot wedge the most according to claim 1 is tied
Structure, it is characterised in that according to generator motor rotor core axial length dimension, major trough wedge (1)
It is divided into multistage, it is simple to manufacture and install with secondary slot wedge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441371.8U CN205753729U (en) | 2016-05-16 | 2016-05-16 | Large-scale ac excitation generating motor rotor slot wedge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441371.8U CN205753729U (en) | 2016-05-16 | 2016-05-16 | Large-scale ac excitation generating motor rotor slot wedge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205753729U true CN205753729U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620441371.8U Active CN205753729U (en) | 2016-05-16 | 2016-05-16 | Large-scale ac excitation generating motor rotor slot wedge structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896042A (en) * | 2017-12-15 | 2018-04-10 | 东方电气集团东方电机有限公司 | A kind of induction machine cage type rotor structure |
-
2016
- 2016-05-16 CN CN201620441371.8U patent/CN205753729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107896042A (en) * | 2017-12-15 | 2018-04-10 | 东方电气集团东方电机有限公司 | A kind of induction machine cage type rotor structure |
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