CN210423724U - Split type sleeved spiral mechanical sealing device - Google Patents
Split type sleeved spiral mechanical sealing device Download PDFInfo
- Publication number
- CN210423724U CN210423724U CN201921342885.8U CN201921342885U CN210423724U CN 210423724 U CN210423724 U CN 210423724U CN 201921342885 U CN201921342885 U CN 201921342885U CN 210423724 U CN210423724 U CN 210423724U
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- CN
- China
- Prior art keywords
- oil
- wall
- slinger
- static
- movable
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 241000213728 Chrysoblephus puniceus Species 0.000 claims abstract description 53
- 230000003068 static Effects 0.000 claims abstract description 26
- 230000000149 penetrating Effects 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 60
- 239000010687 lubricating oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Abstract
A split-type sleeved spiral mechanical sealing device is characterized in that a rotating shaft connecting section (4) and a ring sleeve section (5) are arranged on the inner wall of a movable oil slinger (1), oil return holes (6) penetrating through the inner wall and the outer wall of the ring sleeve section (5) are formed in the ring sleeve section (5), an outward-extending cornice (7) is arranged on the outer edge of the outer side end of the movable oil slinger (1), the movable oil slinger (1) is fixedly connected with a rotating shaft (8), an oil return spiral line (9) is arranged on the inner wall of a static oil slinger (2) and is provided with the oil return holes (6) penetrating through the inner wall and the outer wall of the static oil slinger (2), an oil slinger (10) is arranged on the inner side end of the static oil slinger (2), a connecting portion connected with a sealing end cover (3) is arranged on the outer side end, the static oil slinger (2) is sleeved on the. The problem of high oil level, high oil pressure operation oil leak in the commentaries on classics quick-witted axle bush is solved. The high-temperature and high-dust environment works without oil leakage.
Description
Technical Field
The utility model relates to a mechanical seal device, concretely relates to open type cover income formula spiral mechanical seal device.
Background
The seal between the relatively moving parts in the machine (or equipment) is a dynamic seal. The dynamic seal is divided into a reciprocating dynamic seal and a rotary dynamic seal. For rotary dynamic seals, there are contact dynamic seals where the moving and stationary parts are in direct contact; the two are not directly contacted with each other; the sealed semi-fluid dynamic seal is achieved by the special properties of the fluid added in the seal gap. At present, in the actual use process, because the used mechanical equipment has various complex operating conditions and different use environments, the existing sealing structure still has the problem of poor sealing. For example, when the sealing portion has a high oil level and a high oil pressure, the sealing portion may still leak.
Disclosure of Invention
The utility model discloses the technical problem that will solve is: provides a split type sleeved spiral mechanical sealing device with good sealing effect.
The technical solution of the utility model is that: the split-type sleeved spiral mechanical sealing device comprises a movable oil slinger, a static oil slinger and a sealing end cover, wherein a rotating shaft connecting section and a ring sleeve section are arranged on the inner wall of the movable oil slinger, the caliber of the ring sleeve section is larger than that of the rotating shaft connecting section, an oil return hole penetrating through the inner wall and the outer wall of the ring sleeve section is arranged on the ring sleeve section, an outward-extending cornice is arranged at the outer edge of the outer side end of the movable oil slinger, the movable oil slinger is fixedly connected with the rotating shaft, an oil return spiral line is arranged on the inner wall of the static oil slinger and provided with an oil return hole penetrating through the inner wall and the outer wall of the static oil slinger, an oil slinger is arranged at the inner side end of the outer wall of the static oil slinger, a connecting.
The technical effects of the utility model are that: the inner circle and the outer circle of the static oil slinger of the sealing device are both designed with spiral lines, so that the problem of oil leakage in the operation of high oil level and high oil pressure in a bearing bush of a rotary machine is solved. The sealing device is suitable for working in high-temperature and high-dust environment with the rotating speed of not more than 60000r/min and no oil leakage. Because gaps are reserved among all parts of the whole sealing device, and the friction phenomenon does not occur among all parts, spare parts do not exist in the improved sealing device. The whole sealing device is designed in a split mode, so that the existing running rotary machine equipment is convenient to reform. The sealing device has the design service life of 100 years and the service life of 50 years, and the transformed sealing device is free of maintenance and has no spare parts.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic structural view of the movable oil slinger semi-ring of the present invention;
fig. 3 is a schematic structural diagram of the stationary oil slinger semi-ring of the present invention.
Detailed Description
As shown in fig. 1 to 3, the split-type nested screw mechanical sealing device includes a movable oil slinger 1, a static oil slinger 2 and a sealing end cover 3, wherein a rotating shaft connecting section 4 and a ring sleeve section 5 are arranged on an inner wall of the movable oil slinger 1, a diameter of the ring sleeve section 5 is larger than that of the rotating shaft connecting section 4, the ring sleeve section 5 is provided with an oil return hole 6 penetrating through an inner wall and an outer wall of the ring sleeve section, an outer edge of the outer side end of the movable oil slinger 1 is provided with an extended flying eave 7, the movable oil slinger 1 is fixedly connected with the rotating shaft 8, an oil return spiral line 9 is arranged on an inner wall of the static oil slinger 2 and is provided with an oil return hole 6 penetrating through the inner wall and the outer wall of the static oil slinger 2, an inner side end of the static oil slinger 2 is provided with an oil slinger 10, a connecting part connected with the sealing end cover 3.
The oil control ring 10 is a continuous spiral.
The oil control ring 10 is a plurality of annular bodies.
The movable oil slinger 1 is fixedly connected with the rotating shaft through a jackscrew.
The movable oil slinger 1, the static oil slinger 2 and the sealing end cover 3 are all annular bodies formed by connecting two semi-annular bodies.
The two half ring bodies are connected in a positioning mode through parts such as positioning pins, positioning key grooves and the like so as to improve the connection precision, and the two half ring bodies are fastened through bolts. The connecting pieces can be sealed by sealant to prevent leakage.
All parts of the whole sealing device are in a split mode, are buckled on the rotating shaft and are screwed and fixed by lug plate screws on the sealing end covers, so that the sealing devices of the two half parts form a complete set of sealing device. When the rotating machine rotates, lubricating oil can overflow towards the outer side of the end cover along the axial direction, when the lubricating oil meets the rotating movable oil slinger, the lubricating oil can be thrown to the inner wall of the tile seat by the rotating movable oil slinger, the secondary rebounding of the lubricating oil thrown to the inner wall is carried out on the axial gap between the movable oil slinger and the static oil slinger and enters the excircle of the static oil slinger, and the lubricating oil is forcibly returned to an oil pool in the bearing bush under the action of the oil slinger between the inner circle of the rotating movable oil slinger and the excircle of the static oil slinger. If a small part of lubricating oil is not pumped back to an oil pool in the bearing bush, the lubricating oil enters through an axial gap between the movable oil slinger and the static oil slinger and falls onto a rotating shaft, and under the action between a spiral line on the inner circle of the static oil slinger and the rotating shaft, the lubricating oil flows back to the inner circle cavity wall of the movable oil slinger through an axial gap between the movable oil slinger and the static oil slinger and an oil return hole on the lower half part of the static oil slinger respectively, and flows back to the lubricating oil on the inner circle cavity wall of the movable oil slinger, and is pumped back to the oil pool in the bearing bush forcibly under the action of the inner circle of the movable oil slinger and the oil slinger on the outer.
Claims (5)
1. A split-type sleeved spiral mechanical sealing device comprises a movable oil retainer (1), a static oil retainer (2) and a sealing end cover (3), and is characterized in that a rotating shaft connecting section (4) and a ring sleeve section (5) are arranged on the inner wall of the movable oil retainer (1), the caliber of the ring sleeve section (5) is larger than that of the rotating shaft connecting section (4), an oil return hole (6) penetrating through the inner wall and the outer wall of the ring sleeve section (5) is arranged on the ring sleeve section (5), an outward-extending flying eave (7) is arranged on the outer edge of the outer side end of the movable oil retainer (1), the movable oil retainer (1) is fixedly connected with the rotating shaft (8), an oil return spiral line (9) is arranged on the inner wall of the static oil retainer (2) and provided with the oil return hole (6) penetrating through the inner wall and the outer wall of the static oil retainer (2), an oil retainer (10) is arranged on the inner side end of the outer wall of, the inner side end of the oil baffle ring extends into a ring sleeve section (5) of the movable oil baffle ring (1), and the static oil baffle ring (2) is fixedly connected with the sealing end cover (3).
2. The split-type nested helical mechanical seal of claim 1, wherein the oil control ring (10) is a continuous helix.
3. The split-type nested helical mechanical seal of claim 1, wherein the oil control ring (10) is a plurality of annular bodies.
4. The split-type screw mechanical seal device of claim 1, wherein the oil slinger (1) is fixedly connected to the rotating shaft by a jackscrew.
5. The split-type nested spiral mechanical seal device according to claim 1, wherein the dynamic slinger (1), the static slinger (2) and the seal end cap (3) are all annular bodies formed by connecting two half ring bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342885.8U CN210423724U (en) | 2019-08-19 | 2019-08-19 | Split type sleeved spiral mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342885.8U CN210423724U (en) | 2019-08-19 | 2019-08-19 | Split type sleeved spiral mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423724U true CN210423724U (en) | 2020-04-28 |
Family
ID=70363045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921342885.8U Active CN210423724U (en) | 2019-08-19 | 2019-08-19 | Split type sleeved spiral mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423724U (en) |
-
2019
- 2019-08-19 CN CN201921342885.8U patent/CN210423724U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211230 Address after: 157000 No. 12-000107, Wuzhou International Trade Expo City, Xi'an District, Mudanjiang City, Heilongjiang Province Patentee after: Mudanjiang Hongliang sealing device Co.,Ltd. Address before: Room 910, Lanshan international, Xinglong Village, Dong'an District, Mudanjiang City, Heilongjiang Province Patentee before: Dai Hongliang |