CN214197243U - Multidirectional sealing device - Google Patents
Multidirectional sealing device Download PDFInfo
- Publication number
- CN214197243U CN214197243U CN202023114893.2U CN202023114893U CN214197243U CN 214197243 U CN214197243 U CN 214197243U CN 202023114893 U CN202023114893 U CN 202023114893U CN 214197243 U CN214197243 U CN 214197243U
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- CN
- China
- Prior art keywords
- ring
- static
- bearing frame
- sealing
- rotation axis
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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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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 230000003068 static effect Effects 0.000 claims description 53
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Sealing Of Bearings (AREA)
Abstract
The utility model provides a multidirectional sealing device installs between rotation axis and bearing frame, and the rotation axis is installed in the bearing frame and is stretched out from the bearing frame, and the space between the bearing frame inside and the rotation axis is for sealed chamber, is provided with the mounting groove on the lateral wall of bearing frame, multidirectional sealing device is located the mounting groove and overlaps on the rotation axis, multidirectional sealing device comprises rotating ring and quiet ring, and the cross-section of quiet ring is the door font, include along the quiet go-between of outer quiet ring, the interior quiet ring of radial setting and along the axial setting, the rotating ring is located quiet intra-annular, comprises the main ring that the axial set up and the many lips sealing ring of radial setting, both formula structures as an organic whole. The device can carry out better sealed to between rotation axis and the bearing frame, and its simple structure, simple to operate, easy to maintain, life are permanent.
Description
Technical Field
The utility model provides a multidirectional sealing device especially provides a sealing device that is arranged in the rotation axis to seal up the rotation axis, belongs to mechanical seal technical field.
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.
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
The utility model provides a multidirectional sealing device, the device can carry out better sealed to between rotation axis and the bearing frame, and its simple structure, simple to operate, easy to maintain, life are permanent.
Realize the utility model discloses the technical scheme that above-mentioned purpose adopted does:
a multidirectional sealing device is arranged between a rotating shaft and a bearing seat, the rotating shaft is arranged in the bearing seat and extends out of the bearing seat, a gap between the inside of the bearing seat and the rotating shaft is a sealing cavity, an installation groove is formed in the side wall of the bearing seat, the multidirectional sealing device is positioned in the installation groove and sleeved on the rotating shaft, the multidirectional sealing device is composed of a movable ring and a static ring, the section of the static ring is in a door shape and comprises an outer static ring, an inner static ring and a static connecting ring, the outer static ring and the static connecting ring are arranged along the radial direction, the static ring is integrally installed and fixed in the installation groove, and the outer circular surface of the static connecting ring and the outer lateral surface of the inner static ring are attached to the inner wall of the installation groove; a gland is arranged at an opening of the mounting groove, the outer edge of the gland is fixedly mounted on the side wall of the bearing seat through a bolt, and the inner edge of the gland covers the outer stationary ring and integrally fixes the stationary ring in the mounting groove;
the movable ring is positioned in the static ring and consists of a main ring arranged axially and a multi-lip sealing ring arranged radially, the main ring and the multi-lip sealing ring are of an integral structure, the main ring is sleeved on the rotating shaft through interference fit and is fixedly connected with the rotating shaft, more than one inclined sealing lip is arranged on the outer circular surface, the left side surface and the right side surface of the multi-lip sealing ring, and the sealing lips are respectively in close contact sealing with the inner side surface of the outer static ring, the inner circular surface of the static connecting ring and the inner side surface of the inner static ring.
The static ring is of an integral structure or a split structure, when the static ring is of the split structure, an outer static ring and a static connecting ring in the static ring are connected into a whole, and an inner static ring is of an independent structure.
The inside of the main ring is provided with a metal framework with a straight section.
Compared with the prior art, the utility model provides a multidirectional sealing device has following advantage: 1. the utility model discloses simple structure places multidirectional sealing device through the mounting groove in the bearing frame, makes it and quiet ring contact and realize sealing. 2. The utility model discloses on well rotating ring was fixed in the rotation axis through the interference fit installation, quiet ring can set up to monolithic structure or split type structure simultaneously, consequently the installation with maintain the convenience. 3. The utility model provides a sealing lip respectively with the medial surface of outer quiet ring, the interior disc of quiet go-between and the medial surface in quiet ring in the internal side in close contact with, thereby sealing lip and the multidirectional contact of quiet ring guarantee sealed effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the multi-directional sealing device provided by the present invention;
in the figure: 1-bolt, 2-sealing lip, 3-main ring, 4-rotating shaft, 5-metal framework, 6-sealing cavity, 7-gland, 8-outer static ring, 9-inner static ring, 10-static connecting ring and 11-bearing seat.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a multidirectional sealing device's overall structure is shown in figure 1, installs in bearing frame 10 and stretches out from the bearing frame, and the space between the bearing frame inside and rotation axis 4 is sealed chamber 6, is provided with the mounting groove on the lateral wall of bearing frame, multidirectional sealing device is located the mounting groove and overlaps on the rotation axis, multidirectional sealing device comprises rotating ring and quiet ring, and the cross-section of quiet ring is door font, includes along the outer quiet ring 8 of radial setting, interior quiet ring 9 and along the quiet go-between 10 of axial setting, and quiet ring whole installation is fixed in the mounting groove, and the outer disc of quiet go-between and the outside face of interior quiet ring paste on the inner wall of mounting groove; the static ring is of an integral structure or a split structure, when the static ring is of the split structure, an outer static ring and a static connecting ring in the static ring are connected into a whole, and an inner static ring is of an independent structure. The opening part of mounting groove is provided with gland 7, and the outer border of gland passes through bolt 1 installation to be fixed on the lateral wall of bearing frame, and the interior border of gland covers on outer quiet ring and with quiet ring whole be fixed in the mounting groove.
The movable ring is positioned in the static ring and comprises a main ring 3 arranged axially and a multi-lip sealing ring arranged radially, the main ring and the main ring are of an integral structure, the main ring is sleeved on the rotating shaft through interference fit and is fixedly connected with the rotating shaft, and a metal framework 5 with a straight-line-shaped section is arranged in the main ring. More than one inclined sealing lip 2 is arranged on the outer circular surface, the left side surface and the right side surface of the multi-lip sealing ring, and the sealing lips are respectively in close contact sealing with the inner side surface of the outer static ring, the inner circular surface of the static connecting ring and the inner side surface of the inner static ring.
In the embodiment, the multi-directional sealing device can prevent most of grease from leaking through the sealing cavity formed by the mutual matching of the movable ring and the static ring, and meanwhile, the multi-directional sealing lip can further enhance the sealing property in the sealing cavity.
Claims (3)
1. The utility model provides a multidirectional sealing device, installs between rotation axis and bearing frame, the rotation axis is installed in the bearing frame and is stretched out from the bearing frame, and the space between the inside and rotation axis of bearing frame is sealed chamber, is provided with the mounting groove on the lateral wall of bearing frame, multidirectional sealing device is located the mounting groove and overlaps on the rotation axis its characterized in that: the multi-directional sealing device consists of a movable ring and a static ring, the section of the static ring is in a door shape and comprises an outer static ring, an inner static ring and a static connecting ring, the outer static ring and the inner static ring are arranged along the radial direction, the static ring is arranged and fixed in the mounting groove in an integral mode, and the outer circular surface of the static connecting ring and the outer side surface of the inner static ring are attached to the inner wall of the mounting groove; a gland is arranged at an opening of the mounting groove, the outer edge of the gland is fixedly mounted on the side wall of the bearing seat through a bolt, and the inner edge of the gland covers the outer stationary ring and integrally fixes the stationary ring in the mounting groove;
the movable ring is positioned in the static ring and consists of a main ring arranged axially and a multi-lip sealing ring arranged radially, the main ring and the multi-lip sealing ring are of an integral structure, the main ring is sleeved on the rotating shaft through interference fit and is fixedly connected with the rotating shaft, more than one inclined sealing lip is arranged on the outer circular surface, the left side surface and the right side surface of the multi-lip sealing ring, and the sealing lips are respectively in close contact sealing with the inner side surface of the outer static ring, the inner circular surface of the static connecting ring and the inner side surface of the inner static ring.
2. The multidirectional sealing device according to claim 1, wherein: the static ring is of an integral structure or a split structure, when the static ring is of the split structure, an outer static ring and a static connecting ring in the static ring are connected into a whole, and an inner static ring is of an independent structure.
3. The multidirectional sealing device according to claim 1, wherein: the inside of the main ring is provided with a metal framework with a straight section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023114893.2U CN214197243U (en) | 2020-12-22 | 2020-12-22 | Multidirectional sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023114893.2U CN214197243U (en) | 2020-12-22 | 2020-12-22 | Multidirectional sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214197243U true CN214197243U (en) | 2021-09-14 |
Family
ID=77655450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023114893.2U Active CN214197243U (en) | 2020-12-22 | 2020-12-22 | Multidirectional sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214197243U (en) |
Cited By (2)
| 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 |
| CN115095665A (en) * | 2022-07-21 | 2022-09-23 | 江苏博立飞自动化科技有限公司 | Self-adaptive split type sealing device |
-
2020
- 2020-12-22 CN CN202023114893.2U patent/CN214197243U/en active Active
Cited By (3)
| 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 |
| CN114458764B (en) * | 2022-01-26 | 2024-07-16 | 江门市鑫辉特种密封科技有限公司 | Built-in multi-directional multi-lip seal |
| CN115095665A (en) * | 2022-07-21 | 2022-09-23 | 江苏博立飞自动化科技有限公司 | Self-adaptive split type sealing device |
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