CN209725202U - A kind of high speed rotation axle sealing structure - Google Patents
A kind of high speed rotation axle sealing structure Download PDFInfo
- Publication number
- CN209725202U CN209725202U CN201920130675.6U CN201920130675U CN209725202U CN 209725202 U CN209725202 U CN 209725202U CN 201920130675 U CN201920130675 U CN 201920130675U CN 209725202 U CN209725202 U CN 209725202U
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- CN
- China
- Prior art keywords
- high speed
- speed rotation
- main shaft
- rotation axle
- sealing structure
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- 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.)
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Centrifugal Separators (AREA)
Abstract
The utility model discloses a kind of high speed rotation axle sealing structures, it includes main shaft (1), rotary drum shield (2), bearing block (3), end cap (5), sealed support (7) and seal receptacle (12), main shaft (1) setting is in bearing block (3), side of end cap (5) setting in rotary drum shield (2), the sealed support (7) is fixed on bearing block (3), and the seal receptacle (12) is fixed on main shaft (1).The sealing structure that the utility model uses flinger ring, metallic packing ring and static sealing to combine can effectively prevent liquid phase overflow caused by centrifuge operating and stopping process and introduced contaminants to enter.
Description
Technical field
The utility model relates to the technical field of sealing structure, especially a kind of sealing structure of high-speed rotating shaft.
Background technique
High speed rotation axle sealing structure pattern is a variety of, such as labyrinth seal, oil sealing, floating ring, mechanical seal, thread seal, pressure
Contracting air seal etc., the working principle labyrinth sealing of labyrinth seal structure be between seal chamber and rotary shaft, it is close by one group
Envelope gear piece forms a series of well-regulated throttle clearances and expansion cavity, is produced by the viscous friction of medium and the conversion of energy
Raw throttle effect step by step,
In general, be centrifuged arbor on labyrinth seal implementation method be on rotary drum shield weld one or it is another every
Drip ring on plate, with main shaft forms labyrinth seal to realize sealing.However, this simple labyrinth seal is not enough to prevent
Centrifuge run and stopping process in caused by liquid phase overflow to outer shield, hence into damaging bearing in bearing block.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts provides a kind of high speed rotation axle sealing structure.
The purpose of this utility model is achieved through the following technical solutions: a kind of high speed rotation axle sealing structure, it includes
Main shaft, rotary drum shield, bearing block, end cap, sealed support and seal receptacle, the main shaft are arranged in bearing block, and the end cap is set
It sets in the side of rotary drum shield, the flinger ring and arc plate are fixed on end cap, and the sealed support is fixed on bearing block, institute
Seal receptacle is stated to be fixed on main shaft.
Specifically, the end cap inner surface is fixed with flinger ring, end cap end is fixed with arc plate, the flinger ring end with
Gap of main reinforcement cooperation, forms contactless labyrinth seal structure.
Specifically, the sealed support is threadedly coupled by screw with bearing block.
Specifically, being provided with annular groove (annular groove A) on the sealed support, sealing ring, sealing ring are provided in annular groove
It is contacted always with arc plate.
Specifically, the sealing ring is O-ring seals.
Specifically, the seal receptacle is connect by screw with spindle thread, seal receptacle is rotated with main shaft.
Specifically, being provided with annular groove (annular groove B) on the seal receptacle, metallic packing ring, metal are provided in annular groove
Sealingization and seal receptacle are interference fitted.
The utility model has the advantage that the utility model, will be non-compared to traditional high speed rotation axle sealing structure
Three kinds of contact seal, dynamic sealing and static sealing sealing structures combine, and greatly strengthen the leakproofness of rotary shaft, pass through reality
Use is trampled, it is three-layer sealed to be enough to entirely prevent liquid phase overflow caused by centrifuge operating and stopping process, it plays well
Sealing function.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the partial enlarged view of the utility model；
Fig. 3 is the left view of the utility model；
In figure: 1- main shaft, 2- rotary drum shield, 3- bearing block, 4- flinger ring, 5- end cap, 6- arc plate, 7- sealed support, 8-
Sealing ring, 9- annular groove A, 10- metallic packing ring, 11- annular groove B, 12- seal receptacle, 13- screw, 14- screw.
Specific embodiment
The utility model is further described with reference to the accompanying drawing, but the protection scope of the utility model is not limited to
It is as described below.
As shown in Figures 1 to 3, a kind of high speed rotation axle sealing structure, it includes main shaft 1, rotary drum shield 2, bearing block 3, end
Lid 5, sealed support 7 and seal receptacle 12, the main shaft 1 are arranged in bearing block 3, and the end cap 5 is arranged in the one of rotary drum shield 2
Side, the sealed support 7 are fixed on bearing block 3, and the seal receptacle 12 is fixed on main shaft 1.
Further, 5 inner surface of end cap is fixed with flinger ring 4, and 5 end of end cap is fixed with arc plate 6, the flinger ring
4 ends and 1 clearance fit of main shaft, form contactless labyrinth seal structure.
Further, the sealed support 7 is threadedly coupled by screw 14 with bearing block 3.
Further, annular groove 9(annular groove A is provided on the sealed support 7), sealing ring 8 is provided in annular groove 9,
Sealing ring 8 and arc plate 6 are interference fitted, and form quiet contact sealing.
Further, the sealing ring 8 is O-ring seals.
Further, the seal receptacle 12 is threadedly coupled by screw 13 with main shaft 1, and seal receptacle 12 does rotation fortune with main shaft
It is dynamic.
Further, annular groove 11(annular groove B is provided on the seal receptacle 12), metal sealing is provided in annular groove 11
The lower surface of ring 10, metallic packing ring 10 and sealed support is interference fitted, and forms dynamic contact sealing.
The course of work of the utility model is as follows: when main shaft 1 works, on end cap 5 between the flinger ring 4 welded and main shaft 1
Gap cooperatively forms labyrinth seal, prevents most of liquid such as oil leakage in rotary drum to shield 2 is outer or bearing cavity, end cap
The arc plate 6 of 5 ends welding contacts always with O-ring seal 8, prevents outside the liquid flooding to shield 2 that labyrinth seal place is revealed,
Meanwhile the metallic packing ring 10 in seal receptacle 12 is rotated around sealing support lower surface, is contacted, is prevented always under the effect of the pressure
From the liquid flooding that labyrinth seal place is revealed to bearing cavity.
The above, the only preferred embodiment of the utility model, not do limit in any form to the utility model
System.Anyone skilled in the art, in the case where not departing from technical solutions of the utility model ambit, all using above-mentioned
The technology contents make many possible changes and modifications to technical solutions of the utility model, or be revised as equivalent variations etc.
Imitate embodiment.Therefore, all contents without departing from technical solutions of the utility model, the technology according to the utility model is to the above reality
Any change modification, equivalent variations and modification that example is made are applied, the protection scope of the technical program is belonged to.
Claims (7)
1. a kind of high speed rotation axle sealing structure, it is characterised in that: it include main shaft (1), rotary drum shield (2), bearing block (3),
End cap (5), sealed support (7) and seal receptacle (12), main shaft (1) setting is in bearing block (3), end cap (5) setting
In the side of rotary drum shield (2), the sealed support (7) is fixed on bearing block (3), and the seal receptacle (12) is fixed on main shaft
(1) on.
2. a kind of high speed rotation axle sealing structure according to claim 1, it is characterised in that: end cap (5) inner surface
It is fixed with flinger ring (4), end cap (5) end is fixed with arc plate (6).
3. a kind of high speed rotation axle sealing structure according to claim 1, it is characterised in that: the sealed support (7) is logical
Screw is crossed to be threadedly coupled with bearing block (3).
4. a kind of high speed rotation axle sealing structure according to claim 1, it is characterised in that: on the sealed support (7)
Be provided with annular groove A(9), annular groove A(9) in be provided with sealing ring (8).
5. a kind of high speed rotation axle sealing structure according to claim 4, it is characterised in that: the sealing ring (8) is O shape
Sealing ring.
6. a kind of high speed rotation axle sealing structure according to claim 1, it is characterised in that: the seal receptacle (12) passes through
Screw is threadedly coupled with main shaft (1).
7. a kind of high speed rotation axle sealing structure according to claim 1, it is characterised in that: opened on the seal receptacle (12)
Have annular groove B(11), annular groove B(11) in be provided with metallic packing ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130675.6U CN209725202U (en) | 2019-01-25 | 2019-01-25 | A kind of high speed rotation axle sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130675.6U CN209725202U (en) | 2019-01-25 | 2019-01-25 | A kind of high speed rotation axle sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209725202U true CN209725202U (en) | 2019-12-03 |
Family
ID=68681291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130675.6U Active CN209725202U (en) | 2019-01-25 | 2019-01-25 | A kind of high speed rotation axle sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209725202U (en) |
-
2019
- 2019-01-25 CN CN201920130675.6U patent/CN209725202U/en active Active
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