CN217926793U - Vertical outer rotor permanent magnet motor bearing chamber sealing structure - Google Patents
Vertical outer rotor permanent magnet motor bearing chamber sealing structure Download PDFInfo
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- CN217926793U CN217926793U CN202221707024.7U CN202221707024U CN217926793U CN 217926793 U CN217926793 U CN 217926793U CN 202221707024 U CN202221707024 U CN 202221707024U CN 217926793 U CN217926793 U CN 217926793U
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Abstract
A bearing chamber sealing structure, in particular to a vertical outer rotor permanent magnet motor bearing chamber sealing structure. The utility model has the advantages of simple structure, the preparation is easy, and is with low costs, longe-lived, and reliable operation sets up the sealed cushion of bearing room between bearing room gland and the bearing room and seals, and bearing room gland fixing bearing guarantees that the bearing is stable in the bearing room simultaneously. The sealing gland presses the shaft sealing gasket to ensure that the shaft sealing gasket always keeps axial pressure, thereby ensuring reliable sealing and preventing dust and acid mist from invading the bearing chamber. The utility model comprises a bearing chamber and a stator bracket, wherein an upper bearing and a lower bearing are respectively arranged at the upper end and the lower end in the bearing chamber, and the upper bearing and the lower bearing are arranged on a rotating shaft; the bearing gland is attached to the bearing chamber sealing rubber gasket and fixed on the stator support through bolts, and the sealing gland presses the shaft sealing gasket to be connected with the lower bearing chamber pressure cover.
Description
Technical Field
The utility model relates to a bearing room seal structure, in particular to vertical external rotor permanent magnet motor bearing room seal structure.
Background
The existing vertical outer rotor permanent magnet motor bearing chamber adopts a mode that a bearing chamber gland is arranged at the end part of the bearing chamber through a spigot to press a bearing, a sealing structure is not arranged between the bearing chamber gland and the bearing chamber, a mode without a sealing structure or a mode of adopting a sealing framework is adopted for sealing between the bearing chamber gland and a movable shaft, the non-sealing mode can not protect acid mist and dust on the site of equipment due to precision, so that the corrosion to the bearing and the deterioration to the bearing lubricating oil easily caused by the corrosion of the acid mist can be caused, the lubricating effect can not be lost, the mechanical performance of the bearing is reduced, the service life of the bearing is greatly reduced due to the fact that the field dust enters the bearing, the dust and the grease are mixed to increase friction, the bearing lubrication is reduced, the inner ring and the outer ring of the bearing are ground to be uneven, the bearing damage is accelerated, and the framework is sealed between the bearing chamber gland and the shaft, the service life of the existing sealing framework is usually unequal from 3 months to 2 years, particularly, the sealing framework is not acid-resistant, the service life of the sealing framework can not be ensured in the acid mist environment and the dust environment, and the maintenance of the rotor and the connecting flange are inconvenient to be disassembled after the framework is sealed damage.
Therefore, it is necessary to design a sealing structure for a bearing chamber of a vertical outer rotor permanent magnet motor to solve the above problems.
Disclosure of Invention
The utility model aims at solving the shortcoming that exists among the prior art, and the vertical external rotor permanent magnet motor bearing room seal structure who proposes has solved vertical external rotor permanent magnet motor bearing room and has moved sealed the not can, difficult technical problem such as maintenance.
In order to realize the purpose, the utility model adopts the following technical scheme:
a vertical outer rotor permanent magnet motor bearing chamber sealing structure comprises a bearing chamber and a stator support, wherein the bearing chamber is arranged in the stator support, an upper bearing is arranged at the upper end of the bearing chamber, a lower bearing is arranged at the lower end of the bearing chamber, and rotating shafts are arranged in the upper bearing and the lower bearing;
a lower bearing chamber gland is arranged below the bearing chamber corresponding to the lower bearing (11), the lower bearing chamber gland is connected with the stator support, a lower bearing chamber sealing rubber gasket is arranged between the lower bearing chamber gland and the stator support, the lower end of the lower bearing chamber gland is connected with a lower sealing gland, and a shaft lower sealing gasket is arranged between the lower sealing gland and the lower bearing chamber gland;
an upper bearing chamber gland is arranged above the bearing chamber corresponding to the upper bearing, the upper bearing chamber gland is connected with the stator support, an upper bearing chamber sealing rubber gasket is arranged between the upper bearing chamber gland and the stator support, an upper sealing gland is connected to the upper end of the upper bearing chamber gland, and an upper sealing gasket is arranged between the upper sealing gland and the upper bearing chamber gland.
Furthermore, the rotating shaft, the upper sealing gland, the upper bearing chamber sealing rubber gasket, the upper shaft sealing gasket, the upper bearing, the bearing chamber, the stator support, the lower bearing chamber gland, the lower shaft sealing gasket, the lower sealing gland and the lower bearing chamber sealing rubber gasket are coaxial.
Furthermore, a plurality of bolt holes are formed in the inner edge and the outer edge of the lower bearing chamber gland and the upper bearing chamber gland respectively; a plurality of bolt holes are formed in the outer edge of the lower sealing gland and the outer edge of the upper sealing gland; a plurality of bolt holes are formed in the outer edges of the lower bearing chamber sealing rubber gasket and the upper bearing chamber sealing rubber gasket; and a plurality of bolt holes are formed in the stator bracket.
Furthermore, a plurality of bolt holes arranged on the outer edge of the lower sealing gland correspond to a plurality of bolt holes arranged on the inner edge of the lower bearing chamber gland (12); a plurality of bolt holes arranged on the outer edge of the upper sealing gland (2) correspond to a plurality of bolt holes arranged on the inner edge of the upper bearing chamber gland (3).
Furthermore, the outer edge of the lower bearing chamber gland (12) corresponds to the outer edge of the lower bearing chamber sealing rubber gasket (9) and a plurality of bolt holes arranged on the stator support (10).
Furthermore, the outer edge of the upper bearing chamber gland (3) corresponds to the outer edge of the upper bearing chamber sealing rubber gasket (4) and a plurality of bolt holes arranged on the stator support (10).
Furthermore, the lower shaft sealing gasket (13), the upper shaft sealing gasket (5), the upper bearing chamber sealing rubber gasket (4) and the lower bearing chamber sealing rubber gasket (9) are all made of nitrile butadiene rubber.
Furthermore, the upper sealing gland (2) is provided with a groove, and the shaft upper sealing gasket (5) is matched with the groove arranged on the upper sealing gland (2).
Furthermore, a groove is formed in the lower sealing gland (8), and the lower shaft sealing gasket (13) is matched with the groove formed in the lower sealing gland (8).
The beneficial effects of the utility model are that.
1. The bearing chamber gland is installed on the stator support, and the sealed cushion of bearing chamber is installed to the centre for the seal between bearing chamber gland and the bearing chamber, bearing chamber gland fixed bearing guarantees that the bearing is stable at the bearing chamber simultaneously.
2. The shaft sealing gasket is placed on the bearing chamber pressure cover, so that reliable dynamic sealing is guaranteed when the shaft rotates, the sealing gland presses the shaft sealing gasket to enable the shaft sealing gasket to be used for fixing the shaft sealing gasket to always keep axial pressure, reliable sealing is guaranteed, and dust and acid mist are prevented from invading the bearing chamber.
3. The long-term reliable sealing of the shaft sealing gasket is ensured by regularly adjusting the pretightening force of the sealing gland.
4. The shaft sealing gasket is made of wear-resistant nitrile rubber, and is easy to maintain and replace in the later period.
5. The method and the structure have the advantages of simple structure, easy manufacture, low cost, long service life, reliable work and the like.
Drawings
Fig. 1 is a sectional view of a sealing structure of a bearing chamber of a vertical outer rotor permanent magnet motor.
Fig. 2 is a partial enlarged sectional view of the sealing structure on the bearing chamber of the vertical outer rotor permanent magnet motor.
Fig. 3 is a partial enlarged sectional view of the lower sealing structure of the bearing chamber of the vertical outer rotor permanent magnet motor.
The reference numbers indicate that the rotating shaft 1, the upper sealing gland 2, the upper bearing chamber gland 3, the upper bearing chamber sealing rubber gasket 4, the upper shaft sealing gasket 5, the upper bearing 6, the bearing chamber 7, the lower sealing gland 8, the lower bearing chamber sealing rubber gasket 9, the stator support 10, the lower bearing 11, the lower bearing chamber gland 12 and the lower shaft sealing gasket 13.
Detailed Description
The utility model relates to a vertical outer rotor permanent magnet motor bearing chamber seal structure, including bearing chamber 7 and stator support 10, its characterized in that, bearing chamber 7 sets up in stator support 10, bearing chamber 7 upper end is provided with upper bearing 6, bearing chamber 7 lower extreme is provided with lower bearing 11, upper bearing 6 is interior and lower bearing 11 is provided with pivot 1;
a lower bearing chamber gland 12 is arranged below the bearing chamber 7 corresponding to the lower bearing 11, the lower bearing chamber gland 12 is connected with the stator support 10, a lower bearing chamber sealing rubber gasket 9 is arranged between the lower bearing chamber gland 12 and the stator support 10, the lower end of the lower bearing chamber gland 12 is connected with a lower sealing gland 8, and a shaft lower sealing gasket 13 is arranged between the lower sealing gland 8 and the lower bearing chamber gland 12;
an upper bearing chamber gland 3 is arranged above the bearing chamber 7 corresponding to the upper bearing 6, the upper bearing chamber gland 3 is connected with the stator support 10, an upper bearing chamber sealing rubber gasket 4 is arranged between the upper bearing chamber gland 3 and the stator support 10, the upper end of the upper bearing chamber gland 3 is connected with an upper sealing gland 2, and an upper sealing gasket 5 is arranged between the upper sealing gland 2 and the upper bearing chamber gland 3.
Furthermore, the rotating shaft 1, the upper sealing gland 2, the upper bearing chamber gland 3, the upper bearing chamber sealing rubber gasket 4, the upper shaft sealing gasket 5, the upper bearing 6, the bearing chamber 7, the stator support 10, the lower bearing 11, the lower bearing chamber gland 12, the lower shaft sealing gasket 13, the lower sealing gland 8 and the lower bearing chamber sealing rubber gasket 9 are coaxial.
Further, a plurality of bolt holes are formed in the inner edge and the outer edge of the lower bearing chamber gland 12 and the upper bearing chamber gland 3; the outer edge of the lower sealing gland 8 and the outer edge of the upper sealing gland 2 are provided with a plurality of bolt holes; a plurality of bolt holes are formed in the outer edges of the lower bearing chamber sealing rubber gasket 9 and the upper bearing chamber sealing rubber gasket 4; the stator support 10 is provided with a plurality of bolt holes.
Furthermore, a plurality of bolt holes arranged on the outer edge of the lower sealing gland 8 correspond to a plurality of bolt holes arranged on the inner edge of the lower bearing chamber gland 12; a plurality of bolt holes arranged on the outer edge of the upper sealing gland 2 correspond to a plurality of bolt holes arranged on the inner edge of the upper bearing chamber gland 3.
Further, the outer edge of the lower bearing chamber gland 12 corresponds to the outer edge of the lower bearing chamber sealing rubber gasket 9 and a plurality of bolt holes arranged on the stator support 10.
Furthermore, the outer edge of the upper bearing chamber gland 3 corresponds to the outer edge of the upper bearing chamber sealing rubber gasket 4 and a plurality of bolt holes arranged on the stator bracket 10.
Furthermore, the materials of the shaft lower sealing gasket 13, the shaft upper sealing gasket 5, the upper bearing chamber sealing rubber gasket 4 and the lower bearing chamber sealing rubber gasket 9 are all nitrile rubber.
Furthermore, the upper sealing gland 2 is provided with a groove, and the shaft upper sealing gasket 5 is matched with the groove arranged on the upper sealing gland 2.
Further, the lower sealing gland 8 is provided with a groove, and the shaft lower sealing gasket 13 is matched with the groove arranged on the lower sealing gland 8.
The utility model discloses the theory of operation.
The structure of the utility model comprises a stator bracket 10 which is cylindrical, a bearing chamber 7 is arranged in the stator bracket 10, an upper bearing 6 is arranged at the upper end of the bearing chamber 7, a lower bearing 11 is arranged at the lower end of the bearing chamber 7, and rotating shafts 1 are arranged in the upper bearing 6 and the lower bearing 11;
the lower bearing chamber gland 12 is arranged on the stator bracket 10, the lower bearing gland 12 is attached to the lower bearing chamber sealing rubber gasket 9 and used for sealing between the lower bearing chamber gland 12 and the bearing chamber 7, and meanwhile, the lower bearing chamber gland 12 fixes the lower bearing 11, so that the lower bearing 11 is ensured, the bearing is prevented from sliding at the upper limit of the rotating shaft and is stabilized in the bearing chamber 7;
the lower sealing gland 8 is connected with a lower bearing chamber gland 12, and a shaft lower sealing gasket 13 is arranged between the lower sealing gland 8 and the lower bearing chamber gland 12; the lower sealing gland 8 is internally provided with a concentric groove, the lower shaft sealing gasket 13 is matched with the groove arranged on the lower sealing gland 8 and used for fixing the lower shaft sealing gasket 13 to provide pressure for the rotating shaft 1 all the time, so that the rotating shaft 1 is guaranteed to have reliable dynamic sealing when rotating, and dust and acid mist are prevented from invading the bearing chamber 7.
The upper bearing chamber gland 3 is arranged on the stator support 10, the upper bearing chamber gland 3 is attached to the upper bearing chamber sealing rubber gasket 4 and used for sealing between the upper bearing chamber gland 3 and the bearing chamber 7, and meanwhile, the upper bearing chamber gland 3 fixes the upper bearing 6, so that the bearing is prevented from sliding at the upper limit of a rotating shaft, and the upper bearing 6 is ensured to be stabilized in the bearing chamber 7;
the upper sealing gland 2 is connected with the upper bearing chamber gland 3, and an upper shaft sealing gasket 5 is arranged between the upper sealing gland 2 and the upper bearing chamber gland 3; the upper sealing gland 2 is internally provided with a concentric groove, the shaft upper sealing gasket 5 is matched with the concentric groove arranged on the upper sealing gland 2 and used for fixing the pressure of the shaft upper sealing gasket 5 to the rotating shaft 1 all the time, so that the rotating shaft 1 at the position can be guaranteed to be reliably dynamic sealed when rotating, and dust and acid mist can be prevented from invading the bearing chamber 7.
The materials of the shaft lower sealing gasket 13, the shaft upper sealing gasket 5, the upper bearing chamber sealing rubber gasket 4 and the lower bearing chamber sealing rubber gasket 9 are all butadiene-acrylonitrile rubber, which can be kept tight for a long time as long as the rubber is not disassembled, and is easy for later maintenance and replacement
The lower bearing chamber gland 12, the upper bearing chamber gland 3, the lower sealing gland 8, the upper sealing gland 2, the upper bearing chamber sealing rubber gasket 4 and the lower bearing chamber sealing rubber gasket 9 are provided with a plurality of bolt holes, the pretightening force of the sealing glands is periodically adjusted through bolts, and the long-term reliable sealing effect is achieved.
Claims (9)
1. A vertical outer rotor permanent magnet motor bearing chamber sealing structure comprises a bearing chamber (7) and a stator support (10), and is characterized in that the bearing chamber (7) is arranged in the stator support (10), an upper bearing (6) is arranged at the upper end of the bearing chamber (7), a lower bearing (11) is arranged at the lower end of the bearing chamber (7), and rotating shafts (1) are arranged in the upper bearing (6) and the lower bearing (11);
a lower bearing chamber gland (12) is arranged below the bearing chamber (7) corresponding to the lower bearing (11), the lower bearing chamber gland (12) is connected with the stator support (10), a lower bearing chamber sealing rubber gasket (9) is arranged between the lower bearing chamber gland (12) and the stator support (10), the lower end of the lower bearing chamber gland (12) is connected with a lower sealing gland (8), and a shaft lower sealing gasket (13) is arranged between the lower sealing gland (8) and the lower bearing chamber gland (12);
bearing chamber (7) top is provided with upper bearing chamber gland (3) corresponding to upper bearing (6), upper bearing chamber gland (3) with stator support (10) link to each other, upper bearing chamber gland (3) with stator support (10) between be provided with upper bearing chamber seal cushion (4), upper bearing chamber gland (3) upper end be connected with gland (2), be provided with epaxial sealed pad (5) between upper gland (2) and upper bearing chamber gland (3).
2. The sealing structure of the bearing chamber of the vertical outer rotor permanent magnet motor according to claim 1, wherein the rotating shaft (1), the upper sealing gland (2), the upper bearing chamber gland (3), the upper bearing chamber sealing rubber gasket (4), the upper shaft sealing gasket (5), the upper bearing (6), the bearing chamber (7), the stator bracket (10), the lower bearing (11), the lower bearing chamber gland (12), the lower shaft sealing gasket (13), the lower sealing gland (8) and the lower bearing chamber sealing rubber gasket (9) are coaxial.
3. The vertical outer rotor permanent magnet motor bearing housing sealing structure according to claim 1, wherein a plurality of bolt holes are arranged on both the inner edge and the outer edge of the lower bearing housing gland (12) and the upper bearing housing gland (3); a plurality of bolt holes are formed in the outer edge of the lower sealing gland (8) and the outer edge of the upper sealing gland (2); a plurality of bolt holes are formed in the outer edges of the lower bearing chamber sealing rubber gasket (9) and the upper bearing chamber sealing rubber gasket (4); the stator support (10) is provided with a plurality of bolt holes.
4. A vertical outer rotor permanent magnet motor bearing housing sealing structure as claimed in claim 1, wherein a plurality of bolt holes provided on the outer edge of the lower sealing gland (8) correspond to a plurality of bolt holes provided on the inner edge of the lower bearing housing gland (12); a plurality of bolt holes arranged on the outer edge of the upper sealing gland (2) correspond to a plurality of bolt holes arranged on the inner edge of the upper bearing chamber gland (3).
5. The sealing structure of the bearing chamber of the vertical outer rotor permanent magnet motor according to claim 1, wherein the outer edge of the lower bearing chamber gland (12) corresponds to a plurality of bolt holes formed in the outer edge of the lower bearing chamber sealing rubber gasket (9) and the stator bracket (10).
6. The vertical outer rotor permanent magnet motor bearing chamber sealing structure according to claim 1, wherein the outer edge of the upper bearing chamber gland (3) corresponds to the outer edge of the upper bearing chamber sealing rubber gasket (4) and a plurality of bolt holes arranged on the stator bracket (10).
7. The sealing structure of the bearing chamber of the vertical outer rotor permanent magnet motor according to claim 1, wherein the lower shaft sealing gasket (13), the upper shaft sealing gasket (5), the upper bearing chamber sealing rubber gasket (4) and the lower bearing chamber sealing rubber gasket (9) are all made of nitrile butadiene rubber.
8. The sealing structure of the bearing chamber of the vertical outer rotor permanent magnet motor according to claim 1, wherein the upper sealing gland (2) is provided with a groove, and the shaft upper sealing gasket (5) is matched with the groove arranged on the upper sealing gland (2).
9. A vertical outer rotor permanent magnet motor bearing housing seal structure according to claim 1, wherein the lower seal gland (8) is provided with a groove, and the shaft lower seal gasket (13) is fitted with the groove provided in the lower seal gland (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221707024.7U CN217926793U (en) | 2022-07-05 | 2022-07-05 | Vertical outer rotor permanent magnet motor bearing chamber sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221707024.7U CN217926793U (en) | 2022-07-05 | 2022-07-05 | Vertical outer rotor permanent magnet motor bearing chamber sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217926793U true CN217926793U (en) | 2022-11-29 |
Family
ID=84187009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221707024.7U Active CN217926793U (en) | 2022-07-05 | 2022-07-05 | Vertical outer rotor permanent magnet motor bearing chamber sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217926793U (en) |
-
2022
- 2022-07-05 CN CN202221707024.7U patent/CN217926793U/en active Active
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