CN215990366U - Axial displacement structure is prevented to double-cage rotor - Google Patents
Axial displacement structure is prevented to double-cage rotor Download PDFInfo
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- CN215990366U CN215990366U CN202122413236.6U CN202122413236U CN215990366U CN 215990366 U CN215990366 U CN 215990366U CN 202122413236 U CN202122413236 U CN 202122413236U CN 215990366 U CN215990366 U CN 215990366U
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Abstract
The utility model discloses a double-cage rotor axial displacement prevention structure, which comprises an iron core, wherein a plurality of through grooves are uniformly formed in the side wall of the iron core along the circumferential direction, and the through grooves are arranged along a bus of the iron core; a conducting rod I and a conducting rod II are respectively arranged in each through groove, and the conducting rod I is positioned on the outer side of the conducting rod II; two ends of a conducting rod I are respectively and fixedly arranged on the two conducting rings I, and two ends of a conducting rod II are respectively and fixedly arranged on the two conducting rings II; the two ends of the conducting rod I are sleeved with supporting pieces I, and the supporting pieces I are located between the iron core and the conducting ring I; and two ends of the conducting rod II are provided with support pieces II, and the support pieces II are positioned between the iron core and the conducting ring II. The utility model has simple structure, can effectively prevent the conducting rod from axially moving by arranging the support piece I and the support piece II at the two ends of the conducting rod I and the conducting rod II, solves the problems of motor vibration and root fracture of the conducting rod caused by the loosening and displacement of the conducting rod, prolongs the service life of the motor and is convenient to manufacture.
Description
Technical Field
The utility model relates to a double-cage rotor axial displacement prevention structure.
Background
At present, coal mills are widely applied in the industrial field, and due to the special load characteristic of the coal mills, the matched coal mill motor needs a large starting torque, and in order to obtain a large starting torque, the motor needs to adopt a double-cage rotor structure, an upper cage adopts a circular conducting rod, and a lower cage adopts a rectangular conducting rod. The round conducting rod of the upper cage cannot be wedged tightly, and the conducting rod of the lower cage cannot be wedged tightly due to the fact that the conducting rod is too deep away from the notch, so that the conducting rod is in a loose state. Because the motor has vibration and unbalanced magnetic field during operation, the conducting rod produces axial displacement under various forces. According to the utility model, the supporting piece is arranged on the conducting rod, so that the problem of axial displacement of the conducting rod caused by the fact that the double-cage rotor cannot be wedged tightly is solved, the problems of motor vibration and root fracture of the conducting rod caused by loosening and displacement of the conducting rod are solved, and the service life of the motor is effectively prolonged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the structure for preventing the axial displacement of the double-cage rotor, which has a simple structure and is convenient to manufacture, and can solve the problems of motor vibration and root fracture of the conducting rods caused by the loosening and displacement of the conducting rods and prolong the service life of the motor.
The technical scheme adopted by the utility model is as follows:
a double-cage rotor axial displacement prevention structure comprises an iron core, two end plates, two conducting rings I and two conducting rings II, wherein a plurality of through grooves are uniformly formed in the side wall of the iron core along the circumferential direction and are arranged along a bus of the iron core; a conducting rod I and a conducting rod II are respectively arranged in each through groove, and the conducting rod I is positioned on the outer side of the conducting rod II; two ends of the iron core are respectively and fixedly provided with an end plate; two ends of a conducting rod I are respectively and fixedly arranged on the two conducting rings I, and two ends of a conducting rod II are respectively and fixedly arranged on the two conducting rings II; the two ends of the conducting rod I are sleeved with supporting pieces I, and the supporting pieces I are located between the iron core and the conducting ring I; and two ends of the conducting rod II are provided with support pieces II, and the support pieces II are positioned between the iron core and the conducting ring II.
In the above-mentioned double-cage rotor anti-axial displacement structure, the cross-section of conducting rod I is circular, and the cross-section of conducting rod II is rectangle.
In the axial displacement structure is prevented to foretell double-cage rotor, support piece I is circular copper tubular construction, and support piece II welds the side at conducting rod II, and support piece II's cross-section is the rectangle.
Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure, can effectively prevent the conducting rod from axially moving by arranging the support piece I and the support piece II at the two ends of the conducting rod I and the conducting rod II, solves the problems of motor vibration and root fracture of the conducting rod caused by the loosening and displacement of the conducting rod, prolongs the service life of the motor and is convenient to manufacture.
Drawings
Fig. 1 is a structural example diagram of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-2, the present invention includes an iron core 1, two end plates 2, two conductive rings i 4 and two conductive rings ii 3. Two ends of the iron core 1 are respectively fixedly provided with an end plate 2. The side wall of the iron core 1 is uniformly provided with a plurality of through grooves along the circumferential direction, and the through grooves are arranged along the bus of the iron core 1. Every logical inslot be equipped with a conducting rod I6 and a conducting rod II 8 respectively, conducting rod I6 is located the outside of conducting rod II 8. Two ends of the conducting rod I6 are fixedly arranged on the two conducting rings I4 respectively, and two ends of the conducting rod II 6 are fixedly arranged on the two conducting rings II 3 respectively. The two ends of the conducting rod I6 are sleeved with supporting pieces I5, and the supporting pieces I5 are located between the iron core 1 and the conducting ring I4. And two ends of the conducting rod II 8 are provided with support pieces II 7, and the support pieces II 7 are positioned between the iron core 1 and the conducting ring II 3.
The cross section of conducting rod I6 is circular, and the cross section of conducting rod II 8 is the rectangle. Support piece I5 is circular copper tubular construction, and the welding of support piece II 7 is in the side of conducting rod II 8, and the cross-section of support piece II 7 is the rectangle, and the material that support piece II 7 adopted is copper.
Claims (3)
1. The double-cage rotor axial displacement prevention structure is characterized by comprising an iron core, two conducting rings I and two conducting rings II, wherein a plurality of through grooves are uniformly formed in the side wall of the iron core along the circumferential direction and are arranged along a bus of the iron core; a conducting rod I and a conducting rod II are respectively arranged in each through groove, and the conducting rod I is positioned on the outer side of the conducting rod II; two ends of a conducting rod I are respectively and fixedly arranged on the two conducting rings I, and two ends of a conducting rod II are respectively and fixedly arranged on the two conducting rings II; the two ends of the conducting rod I are sleeved with supporting pieces I, and the supporting pieces I are located between the iron core and the conducting ring I; and two ends of the conducting rod II are provided with support pieces II, and the support pieces II are positioned between the iron core and the conducting ring II.
2. The double-cage rotor axial displacement prevention structure of claim 1, wherein: the cross section of conducting rod I is circular, and the cross section of conducting rod II is the rectangle.
3. The double-cage rotor axial displacement prevention structure of claim 2, wherein: support piece I is circular copper tubular construction, and the welding of support piece II is in the side of conducting rod II, and support piece II's cross-section is the rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122413236.6U CN215990366U (en) | 2021-10-08 | 2021-10-08 | Axial displacement structure is prevented to double-cage rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122413236.6U CN215990366U (en) | 2021-10-08 | 2021-10-08 | Axial displacement structure is prevented to double-cage rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215990366U true CN215990366U (en) | 2022-03-08 |
Family
ID=80509128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122413236.6U Active CN215990366U (en) | 2021-10-08 | 2021-10-08 | Axial displacement structure is prevented to double-cage rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215990366U (en) |
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2021
- 2021-10-08 CN CN202122413236.6U patent/CN215990366U/en active Active
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