CN217355562U - Built-in axial and radial sealing device - Google Patents
Built-in axial and radial sealing device Download PDFInfo
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- CN217355562U CN217355562U CN202220215911.6U CN202220215911U CN217355562U CN 217355562 U CN217355562 U CN 217355562U CN 202220215911 U CN202220215911 U CN 202220215911U CN 217355562 U CN217355562 U CN 217355562U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides an internal axial radial sealing device, which comprises a movable ring and a static ring, wherein the movable ring comprises a movable connecting ring arranged along the axial direction and a movable sealing ring arranged along the radial direction, the movable connecting ring is sleeved on a rotating shaft, the movable sealing ring is sleeved on the movable connecting ring, and both sides and the outer circular surface of the movable sealing ring are provided with more than one inclined movable sealing lip; the static ring comprises an inner sealing ring with an L-shaped section and an outer sealing ring with a reversed L-shaped section, the axial parts of the inner sealing ring and the outer sealing ring are mutually attached and jointly form a sealing cavity with a door-shaped section, and more than one inclined static sealing lip is arranged at the bottom of each of the inner sealing ring and the outer sealing ring; the outer side wall of the outer sealing ring is attached with a pressure plate, and the pressure plate integrally fixes the static ring in the mounting groove; the utility model discloses not only set up the ascending dynamic seal lip and the static seal lip of distribution equidirectional in sealed intracavity, and then formed the sealed effect of multiple defence line reinforcing in sealed intracavity, prolonged sealing device's life simultaneously.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, especially, relate to an interior installation axial radial seal device.
Background
The labyrinth seal is a device which is provided with a plurality of annular seal teeth arranged in sequence around a rotating shaft, a series of cut-off gaps and expansion cavities are formed between the teeth, and the purpose of leakage resistance is achieved by the throttling effect generated when the sealed medium passes through the gaps of the zigzag labyrinth. The labyrinth seal has no solid contact because of the clearance between the rotor and the casing, and allows thermal expansion, so that the labyrinth seal is suitable for occasions of high temperature, high pressure and high rotating speed frequency, and is widely used for sealing shaft ends and stages of steam turbines, gas turbines, compressors and blowers.
In some occasions with strict use requirements, the sealing device not only needs to achieve zero leakage of lubricating oil in the sealing cavity, but also needs to achieve the purpose of preventing external pollutants from entering the sealing cavity, and in addition, the sealing device also has higher requirements on the service life of the sealing element. In some rotating shafts of large equipment, such as wind turbine generators, leakage is more likely to occur due to the large size of the bearings, the large amount of lubricating grease, and errors in production and installation.
The sealing devices in the prior art are more in variety, complicated or simple in structure, and different in sealing performance. In general, however, it would be desirable to provide a seal assembly that is simple in construction, has good sealing properties, and has a long useful life.
Disclosure of Invention
In order to solve the above-mentioned not enough, the utility model provides an interior installation axial radial seal device, the utility model discloses not only set up the ascending movable seal lip of a plurality of directions in sealed intracavity, still set up main lip and vice lip, and then form the sealed effect of multiple defence line reinforcing in sealed intracavity, prolonged sealing device's life simultaneously.
Realize the utility model discloses the technical scheme that above-mentioned purpose adopted does:
the utility model provides an interior dress formula axial radial seal device, installs in the mounting groove that sets up on the end cover lateral wall, and it has the rotation axis to stretch out in the end cover, interior dress formula axial radial seal device includes:
the movable ring comprises a movable connecting ring arranged along the axial direction and a movable sealing ring arranged along the radial direction, the movable connecting ring is sleeved on the rotating shaft and is fixed with the rotating shaft, the movable sealing ring is sleeved on the movable connecting ring, and more than one inclined movable sealing lip is arranged on each of two sides and the outer circular surface of the movable sealing ring;
the static ring comprises an inner sealing ring with an L-shaped section and an outer sealing ring with an inverted L-shaped section, the axial parts of the inner sealing ring and the outer sealing ring are mutually attached and form a sealing cavity with a door-shaped section, and more than one inclined static sealing lip is arranged at the bottom of each of the inner sealing ring and the outer sealing ring; the outer side wall of the outer sealing ring is attached with a pressure plate, and the pressure plate integrally fixes the static ring in the mounting groove;
the movable sealing ring is located in a sealing cavity in a door shape, the static sealing lip is tightly attached to the movable connecting ring to realize sealing, and the movable sealing lip is tightly attached to the inner sealing ring or the radial part of the outer sealing ring to realize sealing.
The movable ring further comprises a sealing framework with a T-shaped section, the sealing framework is composed of a sealing part and a supporting part, the sealing part is sleeved on the movable connecting ring, the supporting part is embedded inside the movable sealing ring, and the static sealing lip is tightly attached to the sealing part to realize sealing.
The sealing device is characterized in that sealing panels are arranged on the surfaces of the inner sealing ring and the outer sealing ring, which are contacted with the sealing cavity, the dynamic sealing lips on the two sides are tightly attached to the radial part of the sealing panel on the inner sealing ring or the outer sealing ring to realize sealing, and the dynamic sealing lips on the outer circular surface are tightly attached to the axial part of the sealing panel on the inner sealing ring or the outer sealing ring to realize sealing.
The bottom of the inner sealing ring and/or the outer sealing ring is provided with two inclined static sealing lips.
The static seal lips of two slopes are main lip and vice lip respectively, main lip inclines towards the direction of seal chamber, and vice lip inclines towards the direction of keeping away from the seal chamber.
The pressing plate is fixed with the end cover through a bolt.
Two dynamic sealing lips with opposite inclination directions are arranged on two sides of the dynamic sealing ring and the outer circular surface, and one ends, in contact with the dynamic sealing ring, of the two dynamic sealing lips are close to each other.
Compared with the prior art, the beneficial effect of this application lies in: 1. the utility model has the advantages that the sealing framework with the T-shaped section plays a supporting role for the movable sealing ring, the movable sealing ring is provided with the movable sealing lips in multiple directions, and the movable sealing lips and the static sealing lips form a heavy defense line in the sealing cavity, thereby generating multiple insurance and greatly enhancing the sealing effect; 2. the sealing panel in the utility model has elasticity, and can generate pretightening force in multiple directions to ensure that the laminating effect of the movable sealing lip and the static sealing lip is better, and the sealing effect is further enhanced; 3. the utility model provides a move seal lip and main lip, vice lip respectively with the seal panel and the sealed skeleton in close contact with realization of metal material sealed, when not causing wearing and tearing to rotating shaft, moving-connecting ring and quiet ring, extension sealing device's life.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment provided by the present invention;
in the figure: 1-a movable connecting ring, 2-a movable sealing ring, 3-a sealing part, 4-a supporting part, 5-a movable sealing lip, 6-a static ring, 7-a sealing panel, 8-a main lip, 9-an auxiliary lip, 10-a pressing plate, 11-an end cover, 12-a rotating shaft, 13-an inner sealing ring and 14-an outer sealing ring.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1
As shown in fig. 1, the embodiment provides an internal axial and radial sealing device, which is installed in an installation groove formed in a side wall of an end cover 11, a rotating shaft extends out of the end cover, the embodiment includes a moving ring and a stationary ring 6, the moving ring includes a moving connecting ring 1, a sealing skeleton and a moving sealing ring 2, the moving connecting ring is sleeved on the rotating shaft 12, the cross section of the sealing skeleton is T-shaped and includes a sealing portion 3 and a supporting portion 4, the sealing portion is sleeved on the moving connecting ring, the moving sealing ring covers the supporting portion, two moving sealing lips 5 with opposite inclination directions are respectively arranged on left and right sides and an outer circumferential surface of the moving sealing ring, and one ends of the two moving sealing lips contacting with the moving sealing ring are close to each other;
the static ring comprises an inner sealing ring 13 with an L-shaped section and an outer sealing ring 14 with a reversed L-shaped section, the axial parts of the inner sealing ring and the outer sealing ring are mutually attached, the two parts jointly form a sealing cavity with a door-shaped section, the axial outer circular surface of the outer sealing ring is attached to the inner wall of the end cover, sealing panels 7 are arranged on the surfaces of the inner sealing ring and the outer sealing ring, which are contacted with the sealing cavity, clamping grooves for the sealing panels to be embedded are formed in the bottoms of the inner sealing ring and the outer sealing ring, and the sealing framework and the sealing panels are elastic frameworks made of metal materials; the bottom parts of the inner sealing ring and the outer sealing ring are respectively provided with two inclined static sealing lips which are respectively a main lip 8 and an auxiliary lip 9, the main lip is positioned on the inner side of the auxiliary lip and is larger than the auxiliary lip in size, the main lip inclines towards the direction of the sealing cavity, and the auxiliary lip inclines towards the direction far away from the sealing cavity; the outer side wall of the outer sealing ring is attached with a pressure plate 10, and the pressure plate integrally fixes the static ring in the mounting groove and seals the sealing cavity; the dynamic sealing ring is positioned in the sealing cavity in a door shape, the main lip and the auxiliary lip in the sealing cavity are tightly attached to the sealing part to realize sealing, the dynamic sealing lips on the left side and the right side are tightly attached to the radial parts of the sealing panel on the inner sealing ring and the outer sealing ring respectively to realize sealing, and the dynamic sealing lips on the outer circular surface are tightly attached to the axial parts of the sealing panel on the inner sealing ring to realize sealing.
Claims (5)
1. The utility model provides an interior built-in axial radial seal device, installs in the mounting groove that sets up on the end cover lateral wall, and it has rotation axis, its characterized in that to stretch out in the end cover: the built-in axial radial seal device comprises:
the movable ring comprises a movable connecting ring arranged along the axial direction and a movable sealing ring arranged along the radial direction, the movable connecting ring is sleeved on the rotating shaft and is fixed with the rotating shaft, the movable sealing ring is sleeved on the movable connecting ring, two movable sealing lips with opposite inclination directions are arranged on two sides and the outer circular surface of the movable sealing ring, and one ends of the two movable sealing lips, which are contacted with the movable sealing ring, are close to each other;
the static ring comprises an inner sealing ring with an L-shaped section and an outer sealing ring with an inverted L-shaped section, the axial parts of the inner sealing ring and the outer sealing ring are mutually attached and form a sealing cavity with a door-shaped section, and more than one inclined static sealing lip is arranged at the bottom of each of the inner sealing ring and the outer sealing ring; the outer side wall of the outer sealing ring is attached with a pressure plate, and the static ring is integrally fixed in the mounting groove by the pressure plate; the surfaces of the inner sealing ring and the outer sealing ring, which are contacted with the sealing cavity, are provided with sealing panels, the dynamic sealing lips at two sides are tightly attached to the radial part of the upper sealing panel of the inner sealing ring or the outer sealing ring to realize sealing, and the dynamic sealing lip on the outer circular surface is tightly attached to the axial part of the upper sealing panel of the inner sealing ring or the outer sealing ring to realize sealing;
the movable sealing ring is located in a sealing cavity in a door shape, the static sealing lip is tightly attached to the movable connecting ring to realize sealing, and the movable sealing lip is tightly attached to the inner sealing ring or the radial part of the outer sealing ring to realize sealing.
2. The built-in axial radial seal of claim 1, wherein: the movable ring further comprises a sealing framework with a T-shaped section, the sealing framework is composed of a sealing part and a supporting part, the sealing part is sleeved on the movable connecting ring, the supporting part is embedded in the movable sealing ring, and the static sealing lip is tightly attached to the sealing part to realize sealing.
3. The built-in axial radial seal of claim 1, wherein: and two inclined static sealing lips are arranged at the bottoms of the inner sealing ring and/or the outer sealing ring.
4. The built-in axial radial seal of claim 3, wherein: the static seal lips of two slopes are main lip and vice lip respectively, the direction slope of main lip towards the seal chamber, and vice lip is towards the direction slope of keeping away from the seal chamber.
5. The built-in axial radial seal of claim 1, wherein: the pressing plate is fixed with the end cover through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220215911.6U CN217355562U (en) | 2022-01-26 | 2022-01-26 | Built-in axial and radial sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220215911.6U CN217355562U (en) | 2022-01-26 | 2022-01-26 | Built-in axial and radial sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355562U true CN217355562U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220215911.6U Active CN217355562U (en) | 2022-01-26 | 2022-01-26 | Built-in axial and radial sealing device |
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| Country | Link |
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| CN (1) | CN217355562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458764A (en) * | 2022-01-26 | 2022-05-10 | 江门市鑫辉特种密封科技有限公司 | Built-in type multi-direction multi-lip sealing device |
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2022
- 2022-01-26 CN CN202220215911.6U patent/CN217355562U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458764A (en) * | 2022-01-26 | 2022-05-10 | 江门市鑫辉特种密封科技有限公司 | Built-in type multi-direction multi-lip sealing device |
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