CN217381627U - Assembled multidirectional many lips sealing device - Google Patents
Assembled multidirectional many lips sealing device Download PDFInfo
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- CN217381627U CN217381627U CN202220217688.9U CN202220217688U CN217381627U CN 217381627 U CN217381627 U CN 217381627U CN 202220217688 U CN202220217688 U CN 202220217688U CN 217381627 U CN217381627 U CN 217381627U
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- lip
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Abstract
The utility model provides an assembled multidirectional many lips sealing device, assembled multidirectional many lips sealing 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, the movable sealing ring is sleeved on the movable connecting ring, the section of the movable sealing ring is U-shaped, and more than one inclined movable sealing lip is arranged on each of two sides 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 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 dynamic seal lip of inside and outside both sides in sealed cavity, still set up main lip and vice lip, and then form the sealed effect of multiple defence line reinforcing in sealed cavity, prolonged sealing device's life simultaneously.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, especially, relate to an assembled multidirectional many lips sealing 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 products, 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
The utility model provides an assembled multidirectional many lips sealing device, the utility model discloses not only set up the dynamic seal lip of axial both sides in sealed cavity, still set up main lip and vice lip, and then form the sealed effect of multiple defence line reinforcing in sealed cavity, the structure of assembled has prolonged sealing device's life simultaneously.
Realize the utility model discloses the technical scheme that above-mentioned purpose adopted does:
the utility model provides a multidirectional many lips of assembled sealing device installs in the mounting groove that sets up on the end cover lateral wall, has stretched out the rotation axis in the end cover, and the space between the inside and rotation axis of end cover is the seal chamber, the multidirectional many lips of assembled sealing 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, the section of the movable sealing ring is U-shaped, and more than one inclined movable sealing lip is arranged on each of two sides 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 static ring is integrally fixed in the mounting groove by the pressure plate;
the movable sealing ring is positioned in the door-shaped sealing cavity, 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 arranged along the axial direction, the sealing framework is of an annular structure and is sleeved on the movable connecting ring, the movable sealing ring is sleeved on the sealing framework, and the static sealing lip is tightly attached to the sealing framework to realize sealing.
And an elastic U-shaped framework is embedded in the movable sealing ring.
The surfaces of the inner sealing ring and the outer sealing ring, which are contacted with the sealing cavity, are provided with sealing panels, and the dynamic sealing lip is tightly attached to the radial part of the inner sealing ring or the sealing panel on the outer sealing ring to realize sealing.
And two inclined static sealing lips are arranged at the bottoms of the inner sealing ring and/or the outer sealing ring.
The two inclined static sealing lips are respectively a main lip and an auxiliary lip, 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 pressing plate is fixed with the end cover through a bolt.
Two movable sealing lips with opposite inclination directions are arranged on two sides of the movable sealing ring, and one ends of the two movable sealing lips, which are in contact with the movable sealing ring, are close to each other.
Compared with the prior art, the beneficial effect of this application lies in: 1. the utility model discloses a U type skeleton that sets up the cross-section and be the U font plays the supporting role to moving the sealing ring, and U type skeleton still produces axial pretightning force to quiet ring simultaneously for moving seal lip and quiet ring closely laminate and realize sealing, and both sides on the moving seal ring all are provided with the moving seal lip, and the main lip of moving seal lip and quiet ring, vice lip form heavy defence line in the sealed intracavity, produce the multichannel insurance, have strengthened sealed effect greatly; 2. the utility model provides a moving seal lip and main lip, vice lip closely laminate with the sealed panel and the sealed skeleton of metal material respectively, when the rotation axis does not have wearing and tearing, extension sealing device's life.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of an embodiment of the present invention;
in the figure: 1-a dynamic connecting ring, 2-a dynamic sealing ring, 3-a U-shaped framework, 4-a sealing framework, 5-a dynamic 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.
As shown in fig. 1, the embodiment provides an assembly type multi-directional multi-lip sealing device, which is installed in an installation groove formed in a side wall of an end cover 11, a rotation shaft extends out of the end cover, and the embodiment includes a moving ring and a stationary ring 6, the moving ring includes a moving connecting ring 1 arranged along an axial direction, a sealing framework 4 arranged along the axial direction, and a moving sealing ring 2 arranged along a radial direction and having a U-shaped cross section, the moving connecting ring is sleeved on the rotation shaft 12, the sealing framework is of an annular structure and sleeved on the moving connecting ring, the moving sealing ring is sleeved on the sealing framework and embedded with an elastic U-shaped framework 3 therein, two moving sealing lips 5 with opposite inclination directions are 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 an inverted L-shaped section, the axial parts of the inner sealing ring and the outer sealing ring are mutually attached, the two parts form a sealing cavity with a door-shaped section, the axial outer circle 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 in contact 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 located in a sealing cavity in a door shape, a main lip and an auxiliary lip in the sealing cavity are tightly attached to a sealing framework to realize sealing, the dynamic sealing lips on the left side and the right side are tightly attached to the radial part 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 part of the sealing panel on the inner sealing ring to realize sealing.
Claims (8)
1. The utility model provides a multidirectional many lips of assembled sealing device, installs in the mounting groove that sets up on the end cover lateral wall, has stretched out the rotation axis in the end cover, and the space between the inside and rotation axis of end cover is sealed chamber, its characterized in that: the fabricated multidirectional multi-lip sealing device comprises:
the movable ring comprises a movable connecting ring and a movable sealing ring with a U-shaped section, the movable connecting ring is arranged along the axial direction and is sleeved on the rotating shaft and fixed with the rotating shaft, the inner circular surface of the movable sealing ring is sleeved on the movable connecting ring and is fixedly connected with the movable connecting ring, and more than one inclined movable sealing lip is arranged on each of two sides 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 positioned in the door-shaped sealing cavity, 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 fabricated multidirectional multi-lip seal of claim 1, wherein: the movable ring further comprises a sealing framework arranged along the axial direction, the sealing framework is of an annular structure and is sleeved on the movable connecting ring, the movable sealing ring is sleeved on the sealing framework, and the static sealing lip is tightly attached to the sealing framework to realize sealing.
3. The fabricated multidirectional multi-lip seal of claim 1, wherein: and an elastic U-shaped framework is embedded in the movable sealing ring.
4. The fabricated multidirectional multi-lip seal of claim 1, wherein: the surfaces of the inner sealing ring and the outer sealing ring, which are contacted with the sealing cavity, are provided with sealing panels, and the dynamic sealing lip is tightly attached to the radial part of the inner sealing ring or the sealing panel on the outer sealing ring to realize sealing.
5. The fabricated multidirectional multi-lip seal of claim 1, wherein: the bottom of the inner sealing ring and/or the outer sealing ring is provided with two inclined static sealing lips.
6. The fabricated multidirectional multi-lip seal of claim 5, wherein: the two inclined static sealing lips are respectively a main lip and an auxiliary lip, 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.
7. The fabricated multidirectional multi-lip seal of claim 1, wherein: the pressing plate is fixed with the end cover through a bolt.
8. The fabricated multidirectional multi-lip seal of claim 1, wherein: two movable sealing lips with opposite inclination directions are arranged on two sides of the movable sealing ring, and one ends of the two movable sealing lips, which are in contact with the movable sealing ring, are close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217688.9U CN217381627U (en) | 2022-01-26 | 2022-01-26 | Assembled multidirectional many lips sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220217688.9U CN217381627U (en) | 2022-01-26 | 2022-01-26 | Assembled multidirectional many lips sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217381627U true CN217381627U (en) | 2022-09-06 |
Family
ID=83098524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220217688.9U Active CN217381627U (en) | 2022-01-26 | 2022-01-26 | Assembled multidirectional many lips sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217381627U (en) |
-
2022
- 2022-01-26 CN CN202220217688.9U patent/CN217381627U/en active Active
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