CN201839119U - End cover structure of explosion-proof permanent magnetic motor - Google Patents
End cover structure of explosion-proof permanent magnetic motor Download PDFInfo
- Publication number
- CN201839119U CN201839119U CN2010205411680U CN201020541168U CN201839119U CN 201839119 U CN201839119 U CN 201839119U CN 2010205411680 U CN2010205411680 U CN 2010205411680U CN 201020541168 U CN201020541168 U CN 201020541168U CN 201839119 U CN201839119 U CN 201839119U
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- motor
- bearing
- cover structure
- explosion
- end cover
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Abstract
The utility model discloses an end cover structure of an explosion-proof permanent magnetic motor, comprising two end covers (1) arranged at two ends of the motor, a motor shaft (2) and a bearing (3); the two end covers (1) are respectively arranged at the two ends of a motor shell, step holes are arranged in the middle of the end covers (1), bearing mounting holes (11) are arranged at longer radius sections of step holes, shaft holes (12) are arranged at shorter radius sections of the step holes, the bearing mounting holes (11) are positioned outside the shaft holes (12), the bearing (3) is arranged in the bearing mounting holes (11), the motor shaft (2) penetrates through the motor and then is arranged on the bearing (3), an explosion-proof joint surface (13) is formed by the motor shaft (2) and the shaft holes (12), namely the explosion-proof joint surface (13) is positioned inside the bearing (3). With the end cover structure, the internal space of the motor can be fully utilized, and the overall size of the motor can be smaller.
Description
Technical field
The utility model relates to a kind of anti-explosion permanent magnet motor, particularly a kind of end cover structure of anti-explosion permanent magnet motor.
Background technology
As shown in Figure 1, a kind of end cover structure of anti-explosion permanent magnet motor, it comprises end cap 1, motor shaft 2 and the bearing 3 that is arranged in the motor two ends; End cap 1 is two, it is installed in the two ends of electric machine casing respectively, the centre of end cap 1 has shoulder hole, shoulder hole be bearing mounting hole 11 than the long radius section, the small radii section of shoulder hole is an axis hole 12, bearing mounting hole 11 is positioned at the inboard of axis hole 12, bearing 3 is installed in the bearing mounting hole 11, motor shaft 2 passes from motor and is installed on the bearing 3, and motor shaft 2 forms flameproof joint 13 with axis hole 12, and the inboard of bearing 3 also is provided with bearing cap 31.The end cover structure of this anti-explosion permanent magnet motor, bearing mounting hole 11 is arranged on the electric motor end cap inboard, then flameproof joint 13 is arranged on bearing mounting hole 11 outsides, because flameproof joint 13 is axially needing to keep certain-length, so just make the end cap mid portion be compelled to do thicklyer, outwards outstanding, the axial length of motor increases, and makes the motor overall structure bigger.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and end cover structure that a kind of anti-explosion permanent magnet motor is provided, and it can make full use of the motor internal space, makes the motor overall dimensions less.
The technical solution of the utility model is: a kind of end cover structure of anti-explosion permanent magnet motor, and it comprises end cap, motor shaft and the bearing that is arranged in the motor two ends; End cap is two, it is installed in the two ends of electric machine casing respectively, the centre of end cap has shoulder hole, shoulder hole be bearing mounting hole than the long radius section, the small radii section of shoulder hole is an axis hole, bearing mounting hole is positioned at the outside of axis hole, Bearing Installation is in bearing mounting hole, motor shaft passes from motor and is installed on the bearing, and motor shaft and axis hole form flameproof joint, and promptly flameproof joint is positioned at the inboard of bearing.
The further technical scheme of the utility model is: the outside of bearing also is provided with bearing cap.
The utility model further technical scheme is: the centre of end cap is provided with ledge, and ledge extend in the intermediate hollow of rotor of motor.
The utility model compared with prior art has following characteristics:
The middle ledge of end cap just in time can extend in the intermediate hollow part of rotor of motor and go, and has made full use of the inner space of motor, reduces the motor overall dimensions.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is a structural representation of the present utility model.
Embodiment
Embodiment as shown in Figure 2, a kind of end cover structure of anti-explosion permanent magnet motor, it comprises end cap 1, motor shaft 2 and the bearing 3 that is arranged in the motor two ends; End cap 1 is two, it is installed in the two ends of electric machine casing respectively, the centre of end cap 1 has shoulder hole, shoulder hole be bearing mounting hole 11 than the long radius section, the small radii section of shoulder hole is an axis hole 12, bearing mounting hole 11 is positioned at the outside of axis hole 12, bearing 3 is installed in the bearing mounting hole 11, motor shaft 2 passes and is installed on the bearing 3 from motor, motor shaft 2 forms flameproof joint 13 with axis hole 12, be the inboard that flameproof joint 13 is positioned at bearing 3, the outside of bearing 3 also is provided with bearing cap 31.The end cover structure of this anti-explosion permanent magnet motor, bearing mounting hole 11 is arranged on the electric motor end cap outside, flameproof joint 13 is arranged on bearing mounting hole 11 inboards, because flameproof joint 13 is axially needing to keep certain-length, and the middle ledge 14 of end cap 1 just in time can extend in the intermediate hollow part 41 of rotor 4 of motor and goes, make full use of the inner space of motor, reduced the motor overall dimensions.
The utility model is not limited to above-mentioned concrete structure, just drops within the protection range of the present utility model so long as flameproof joint 13 is positioned at the end cover structure of anti-explosion permanent magnet motor of the inboard of bearing 3.
Claims (3)
1. the end cover structure of an anti-explosion permanent magnet motor, it comprises end cap (1), motor shaft (2) and the bearing (3) that is arranged in the motor two ends; End cap (1) is two, it is installed in the two ends of electric machine casing respectively, the centre of end cap (1) has shoulder hole, shoulder hole be bearing mounting hole (11) than the long radius section, the small radii section of shoulder hole is axis hole (12), it is characterized in that: bearing mounting hole (11) is positioned at the outside of axis hole (12), bearing (3) is installed in the bearing mounting hole (11), motor shaft (2) passes from motor and is installed on the bearing (3), motor shaft (2) forms flameproof joint (13) with axis hole (12), and promptly flameproof joint (13) is positioned at the inboard of bearing (3).
2. the end cover structure of anti-explosion permanent magnet motor according to claim 1 is characterized in that: the outside of described bearing (3) also is provided with bearing cap (31).
3. the end cover structure of anti-explosion permanent magnet motor according to claim 1 and 2 is characterized in that: the centre of described end cap (1) is provided with ledge (14), and ledge (14) extend in the intermediate hollow (41) of rotor (4) of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411680U CN201839119U (en) | 2010-09-22 | 2010-09-22 | End cover structure of explosion-proof permanent magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411680U CN201839119U (en) | 2010-09-22 | 2010-09-22 | End cover structure of explosion-proof permanent magnetic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201839119U true CN201839119U (en) | 2011-05-18 |
Family
ID=44009218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205411680U Expired - Fee Related CN201839119U (en) | 2010-09-22 | 2010-09-22 | End cover structure of explosion-proof permanent magnetic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201839119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594741A (en) * | 2019-10-10 | 2019-12-20 | 南阳市中通防爆电机电器有限公司 | Explosion-proof ultralow nitrogen combustor |
-
2010
- 2010-09-22 CN CN2010205411680U patent/CN201839119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594741A (en) * | 2019-10-10 | 2019-12-20 | 南阳市中通防爆电机电器有限公司 | Explosion-proof ultralow nitrogen combustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20160922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |