CN207184221U - Permagnetic synchronous motor rotation axis seal structure - Google Patents
Permagnetic synchronous motor rotation axis seal structure Download PDFInfo
- Publication number
- CN207184221U CN207184221U CN201720902723.XU CN201720902723U CN207184221U CN 207184221 U CN207184221 U CN 207184221U CN 201720902723 U CN201720902723 U CN 201720902723U CN 207184221 U CN207184221 U CN 207184221U
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- flange
- oil sealing
- rotating shaft
- gap
- synchronous motor
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Abstract
The utility model discloses permagnetic synchronous motor rotation axis seal structure, including rotating shaft, is sheathed on outer skeleton, flange and bearing that rotating shaft coordinates installation with it successively；The inner chamber of the flange is provided with the first oil sealing for being bonded the outer skeleton, the inner chamber of the flange is also equipped with being bonded the second oil sealing of the bearing, gap is provided between the flange and the rotating shaft, connected between first oil sealing and second oil sealing by the gap, the oblique through hole for extending the outer skeleton is provided with the top of the flange.The utility model realizes that the installation of sealing structure is safeguarded, versatile.
Description
Technical field
The utility model belongs to motor mounting technique field, more particularly to a kind of permagnetic synchronous motor rotation axis seal knot
Structure.
Background technology
Due to the structure of permagnetic synchronous motor and the particularity in magnetic field, the degree of protection and structural requirement to motor are also more next
It is higher, with the revolute axes configuration of labyrinth sealing, rotating shaft is sheathed on using labyrinth seat and labyrinth lid, set between flange and labyrinth seat
There is V-type rubber axis seal ring, outside framework oil seal is provided between rotating shaft in flange.In order to reach degree of protection, the sealing structure of motor
Multiple parts are used, processing part is more, coordinates in assembling and requires also to accordingly increase, assembly difficulty improves, excessive structure
Coordinate between part, increase the risk of machine shaft seal failure.
Utility model content
The purpose of this utility model is that in order to solve the above-mentioned technical problem, and it is close to provide a kind of permagnetic synchronous motor rotary shaft
Seal structure, it is convenient for installation and maintenance so as to realize, it is versatile.In order to achieve the above object, technical solutions of the utility model are as follows：
Permagnetic synchronous motor rotation axis seal structure, including rotating shaft, the dermoskeleton that rotating shaft coordinates installation with it is sheathed on successively
Frame, flange and bearing；The inner chamber of the flange is provided with the first oil sealing for being bonded the outer skeleton, and the inner chamber of the flange is also pacified
Equipped with the second oil sealing for being bonded the bearing, gap is provided between the flange and the rotating shaft, first oil sealing and described
Connected between second oil sealing by the gap, the oblique through hole for extending the outer skeleton is provided with the top of the flange.
Specifically, lubricating grease is coated with the gap.
Specifically, the distance in the gap is in 0.2cm-0.5cm.
Compared with prior art, the beneficial effect major embodiment of the utility model permagnetic synchronous motor rotation axis seal structure
：Coordinated by the gap of flange and rotating shaft, reach cushioning effect, be advantageous to the sealing protection of the first oil sealing and the second oil sealing；
First oil sealing and the second oil sealing are respectively arranged on the both sides of flange inner chamber, and are fitted close between rotating shaft, form double-layer seal and prevent
Shield；The oblique through hole of flange has drain function, reduces by the first oil sealing pressure, improves sealing；Overall structure is simple, and part coordinates
It is close reasonable, installation steps are optimized, improve overall sealing performance.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Numeral represents in figure：
1 rotating shaft, 2 outer skeletons, 21 oblique through holes, 3 flanges, 31 first oil sealings, 32 second oil sealings, 4 bearings, 5 gaps.
Embodiment
Clear, complete description will be carried out to the technical scheme in the embodiment of the utility model below in conjunction with the accompanying drawings, it is clear that
Described embodiment is only the utility model part of the embodiment, rather than whole embodiments.
Embodiment：
Shown in reference picture 1, the present embodiment is permagnetic synchronous motor rotation axis seal structure, including rotating shaft 1, is sheathed on successively
Rotating shaft 1 coordinates outer skeleton 2, flange 3 and the bearing 4 of installation.The inner chamber of flange 3 is provided with the first oil sealing 31 for being bonded outer skeleton 2,
The inner chamber of flange 3 is also equipped with being bonded the second oil sealing 32 of bearing 4, and the first oil sealing 31 and the second oil sealing 32 form the close of rotating shaft 1
Envelope protection.Gap 5 is provided between flange 3 and rotating shaft 1, is connected between the first oil sealing 31 and the second oil sealing 32 by gap 5.Flange
3 tops are provided with the oblique through hole 21 for extending outer skeleton 2.
Oblique through hole 21 is osculum, can make the discharge flange 3 of fluid quickly, be unlikely to overstock in outer skeleton 2, avoid making
Into the pressure of the first oil sealing 31.When motor is invaded in fluid, the first oil sealing 31 forms first of exclusion seal, it is ensured that fluid is difficult
In leaking into gap 5, the second oil sealing 32 forms second exclusion seal, even if the first oil sealing 31 has fluid infiltration, due to flange 3
Gap very little between rotating shaft 1, the infiltration of convection body produce larger resistance, and fluid is difficult to leak into the protection of the second oil sealing 32
It is interior, play release and cushioning effect.Coating lubricating grease in gap 5, effectively prevents fluid from penetrating into motor internal, reduces oil sealing
Friction, enhances the reliability of protection and extends working life.Gap 5 between flange 3 and rotating shaft 1 is according to the size of flange 3
It is adapted to adjustment, the distance controlling in gap 5 is between 0.2cm-0.5cm.
The present embodiment is coordinated by the gap of flange 3 and rotating shaft 1, reaches cushioning effect, is advantageous to the first oil sealing 31 and the
The sealing protection of two oil sealings 32；First oil sealing 31 and the second oil sealing 32 are respectively arranged on the both sides of the inner chamber of flange 3, and with rotating shaft 1 it
Between be fitted close, form double-layer seal protection；The oblique through hole 21 of flange 3 has drain function, reduces the pressure of the first oil sealing 31, carries
High leakproofness；Overall structure is simple, and it is close reasonable that part coordinates, and optimizes installation steps, improves overall sealing performance.
Above-described is only some embodiments of the present utility model.For the person of ordinary skill of the art,
On the premise of not departing from the utility model and creating design, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (3)
1. permagnetic synchronous motor rotation axis seal structure, it is characterised in that：Including rotating shaft, it is sheathed on rotating shaft successively and it coordinates peace
Outer skeleton, flange and the bearing of dress；The inner chamber of the flange is provided with the first oil sealing for being bonded the outer skeleton, the flange
Inner chamber is also equipped with being bonded the second oil sealing of the bearing, and gap, first oil are provided between the flange and the rotating shaft
Connected between envelope and second oil sealing by the gap, be provided with the top of the flange and extend the tiltedly logical of the outer skeleton
Hole.
2. permagnetic synchronous motor rotation axis seal structure according to claim 1, it is characterised in that：It is coated with the gap
Lubricating grease.
3. permagnetic synchronous motor rotation axis seal structure according to claim 1, it is characterised in that：The distance in the gap
In 0.2cm-0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902723.XU CN207184221U (en) | 2017-07-24 | 2017-07-24 | Permagnetic synchronous motor rotation axis seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902723.XU CN207184221U (en) | 2017-07-24 | 2017-07-24 | Permagnetic synchronous motor rotation axis seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184221U true CN207184221U (en) | 2018-04-03 |
Family
ID=61737356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720902723.XU Active CN207184221U (en) | 2017-07-24 | 2017-07-24 | Permagnetic synchronous motor rotation axis seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207184221U (en) |
-
2017
- 2017-07-24 CN CN201720902723.XU patent/CN207184221U/en active Active
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| GR01 | Patent grant |