CN205207431U - Magnetic suspension bearing keeps apart rotor structure - Google Patents
Magnetic suspension bearing keeps apart rotor structure Download PDFInfo
- Publication number
- CN205207431U CN205207431U CN201521018169.6U CN201521018169U CN205207431U CN 205207431 U CN205207431 U CN 205207431U CN 201521018169 U CN201521018169 U CN 201521018169U CN 205207431 U CN205207431 U CN 205207431U
- Authority
- CN
- China
- Prior art keywords
- rotor
- magnetic suspension
- suspension bearing
- sheath
- fluid container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a magnetic suspension bearing keeps apart rotor structure, which comprises a base, magnetic suspension bearing, rotor and stator, magnetic suspension bearing and stator support on the base respectively, the rotor is worn to locate in magnetic suspension bearing and the stator, still include fluid container and sheath, the sheath is the one end opening, the inclosed beta -barrel structure of the other end, the sheath is worn to locate between magnetic suspension bearing and the rotor and between stator and the rotor, the open end of sheath is stretched and is linked to each other with the fluid container outside the base, and the inner chamber of sheath link up with the inner chamber of fluid container mutually, the left end of rotor is stretched in the inner chamber of fluid container. The utility model discloses structure sealing is effectual, longe -lived, and seal structure is not restricted by the rotational speed of rotor and surperficial linear velocity, and except that rotor and sheath, other parts do not receive to be influenced by sealed fluid, and to used material, structure and the requirement of performance un -specificness, magnetic suspension bearing does not need lubricatedly, simple structure, longe -lived.
Description
Technical field:
The utility model relates to a kind of magnetic suspension bearing isolation rotor structure, and it belongs to magnetic levitation technology field.
Background technique:
Rotating machinery applies a very general class machinery, and its essential characteristic can be summarized as: be arranged on pedestal by one group of bearing by rotor, finished the work by the rotation of rotor.
Rotor in rotating machinery usually needs pedestal to penetrate, but in a lot of application, we need the sealing ensureing machinery, therefore need to install shaft seal between rotor and pedestal.Existing shaft seal can be divided into contact seal and noncontact seal two class.Contact seal, as seal with O ring, packing seal etc., has good sealing effect, but can not bear excessive linear resonance surface velocity.Existing noncontact seal, as oil sealing, labyrinth seal, carbon ring seal etc., although can bear larger linear resonance surface velocity, sealing effect is more very different than contact seal.Many times needing the quantity by increasing noncontact seal, increasing the sealing gland method such as (fluid-tight) and reduce leakage rate, thus complex structure, bulky.
Be contact seal or noncontact seal be all motive sealing, can not accomplish zero leakage, the contradiction between its sealing effect and life-span also cannot overcome.
But along with the requirement of modern industry to the rotating speed of rotating machinery, leakage rate, life-span and cost synchronously improves, the performance of conventional shaft seal has been difficult to meet the demands.So some rotating machinery abandons dynamic shaft seal, then carry out static sealing on pedestal.Because static sealing does not exist relative movement, therefore avoid the requirement to rotating speed and life-span, utilize very low cost just can accomplish zero leakage.
But adopt the static sealing of pedestal sealing configuration just to mean that the fluid by sealing can enter base interior, rotor, bearing and other component are all soaked in a fluid.This will affect the lubrication of bearing, affect the heat radiation of inner body, and causes fluid to the burn into corrosion of internal mechanical, the series of problems such as fire and explosive risks and electric leakage.Therefore pedestal sealing configuration can only be applicable to some special occasions, can not substitute shaft seal completely.
Therefore, necessary the deficiency solving prior art is improved to prior art.
Model utility content:
The utility model provides a kind of magnetic suspension bearing to isolate rotor structure to solve above-mentioned prior art Problems existing.
The technological scheme that the utility model adopts has: a kind of magnetic suspension bearing isolation rotor structure, comprise pedestal, magnetic suspension bearing, rotor and stator, described magnetic suspension bearing and stator are supported on pedestal respectively, rotor is arranged in magnetic suspension bearing and stator, it also comprises fluid container and sheath, described sheath is one end open, the barrel-like structure that the other end is airtight, sheath is arranged between magnetic suspension bearing and rotor and between stators and rotators, the opening end of sheath stretches in outside pedestal and is connected with fluid container, and the inner chamber of the inner chamber of sheath and fluid container connects, the left end of rotor stretches in the inner chamber of fluid container.
Further, O RunddichtringO is provided with between described sheath and fluid container.
The utility model has following beneficial effect:
1) sealing effect of the utility model structure is not by the rotating speed of rotor and the restriction of linear resonance surface velocity;
2) sealing of each parts in the utility model structure is static sealing, and structure is simple, cost is low, the life-span is long, zero leakage;
3) except rotor and sheath, other parts are by being affected by fluid-encapsulated, to material therefor, stuctures and properties without particular/special requirement;
4) magnetic suspension bearing does not need lubrication, and structure is simple, the life-span is long.
Accompanying drawing illustrates:
Fig. 1 is structural drawing of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model magnetic suspension bearing isolation rotor structure, comprise pedestal 1, magnetic suspension bearing 2, rotor 3 and stator 6, magnetic suspension bearing 2 and stator 6 are all supported on pedestal 1, and rotor 3 is arranged in magnetic suspension bearing 2 and stator 6.Sheath 5 is provided with between rotor 3 and magnetic suspension bearing 2 and stator 6, this sheath 5 is one end open, the barrel-like structure that the other end is airtight, the left side opening end of sheath 5 stretches in outside pedestal 1 and fluid container 4 is tightly connected, and the inner chamber of the inner chamber of sheath 5 and fluid container 4 connects, the left end of rotor 3 stretches in the inner chamber of fluid container 4.
Adopt static sealing between sheath 5 in the utility model and fluid container 4, this static sealing structure is O RunddichtringO 7 or filler.
The feature of the utility model magnetic suspension bearing isolation rotor structure is:
1) rotor 3 is wrapped in sheath 5, and is supported by magnetic suspension bearing 2, and rotor 3 does not contact with pedestal 1, does not rub so do not need lubrication due to magnetic suspension bearing 2, does not also have rotating speed and life-span restriction.
2) sheath 5 is seal containers of an one end open, opening end be filled with fluid-encapsulated fluid container 4 and be connected, and rotor 3 and pedestal 1 to be separated, the fluid-encapsulated gap being full of rotor 1 and sheath 5.
3) sheath 5 adopts static sealing with the joint of fluid container 4, and pedestal 1 does not need sealing, and the structure of static sealing is simple, cost is low, the life-span is long, and is easy to accomplish zero leakage.
4) in pedestal 1, other parts do not contact with fluid-encapsulated, can not be subject to fluids.As long as therefore sheath 1 and rotor 3 shell select the material that can tolerate this fluids just can ensure safety, without the need to carrying out special processing to the material of other component in pedestal 1.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, can also make some improvement under the prerequisite not departing from the utility model principle, these improvement also should be considered as protection domain of the present utility model.
Claims (2)
1. a magnetic suspension bearing isolation rotor structure, comprise pedestal (1), magnetic suspension bearing (2), rotor (3) and stator (6), described magnetic suspension bearing (2) and stator (6) are supported on pedestal (1) respectively, rotor (3) is arranged in magnetic suspension bearing (2) and stator (6), it is characterized in that: also comprise fluid container (4) and sheath (5), described sheath (5) is one end open, the barrel-like structure that the other end is airtight, sheath (5) is arranged between magnetic suspension bearing (2) and rotor (3) and between stator (6) and rotor (3), the opening end of sheath (5) stretches in pedestal (1) and is connected with fluid container (4) outward, and the inner chamber of the inner chamber of sheath (5) and fluid container (4) connects, the left end of rotor (3) stretches in the inner chamber of fluid container (4).
2. magnetic suspension bearing isolation rotor structure as claimed in claim 1, is characterized in that: described sheath (5) and fluid container (4) are provided with O RunddichtringO (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018169.6U CN205207431U (en) | 2015-12-09 | 2015-12-09 | Magnetic suspension bearing keeps apart rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521018169.6U CN205207431U (en) | 2015-12-09 | 2015-12-09 | Magnetic suspension bearing keeps apart rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207431U true CN205207431U (en) | 2016-05-04 |
Family
ID=55845151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521018169.6U Withdrawn - After Issue CN205207431U (en) | 2015-12-09 | 2015-12-09 | Magnetic suspension bearing keeps apart rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333009A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolation rotor structure |
-
2015
- 2015-12-09 CN CN201521018169.6U patent/CN205207431U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333009A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolation rotor structure |
| CN105333009B (en) * | 2015-12-09 | 2018-04-06 | 南京磁谷科技有限公司 | Magnetic suspension bearing isolates rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20180406 |
|
| AV01 | Patent right actively abandoned |