CN205350365U - Sealing device and oily vapour combination sealing device - Google Patents
Sealing device and oily vapour combination sealing device Download PDFInfo
- Publication number
- CN205350365U CN205350365U CN201620099807.XU CN201620099807U CN205350365U CN 205350365 U CN205350365 U CN 205350365U CN 201620099807 U CN201620099807 U CN 201620099807U CN 205350365 U CN205350365 U CN 205350365U
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- tooth
- oil
- ring
- seal
- sealing device
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Abstract
The utility model discloses a sealing device, include: the disc still includes the oil blanket ring, be provided with the first sealed tooth of multiunit of following the axial and arranging on the interior anchor ring of oil blanket ring, the first sealed tooth of multiunit with the outer anchor ring cooperation of disc forms axial seal, with or the side of oil blanket ring is provided with along the sealed tooth of multiunit second of radially arranging, the sealed tooth of multiunit second with at least one side cooperation formation radial seal that keeps off oily tooth of disc. The utility model provides a first sealed tooth in the oil blanket ring can provide axial seal, and the sealed tooth of second can provide the radial seal, and this axial seal and radial seal homoenergetic enough improve the sealed effect of lubricating oil. In addition, first sealed tooth and second on the oil blanket ring seal the effect that the tooth still played the vapor seal, prevent that high -pressure steam from permeating in the lubricating oil to ensure the lubricated effect of lubricating oil. The utility model also discloses an oily vapour combination sealing device of having above -mentioned sealing device.
Description
Technical field
This utility model relates to the technical field of sealing technology of the power shaft of high-speed gear box, more particularly, it relates to a kind of sealing device and a kind of oil vapour combination sealing arrangement.
Background technology
The power shaft of the high-speed gear box in Cargo Oil Pump turbine driving device is in the state of running up.And the high steam of the seal oil of the sliding bearing on the power shaft of high-speed gear box and steam turbine seals the key factor being to ensure power shaft high speed, steady running.The seal oil of existing sliding bearing is by drying the disc realization being contained on power shaft, disc has three groups of gear oil teeth of the axial distribution along power shaft, one group of gear oil tooth near sliding bearing is first gear oil tooth, secondly being second gear oil tooth, one group of gear oil tooth farthest from sliding bearing is third gear oil tooth.These three groups gear oil teeth constitute three groups of axial seals.But, the seal oil effect of this kind of mode is unsatisfactory, and lubricating oil is likely to cross three groups of gear oil teeth and leaks out.It addition, the high steam of steam turbine is likely to be mixed in lubricating oil, affect the lubricant effect of lubricating oil.
Therefore, how to improve the seal oil effect of sliding bearing, and how to prevent the high steam of steam turbine from leaking into lubricating oil, be those skilled in the art's critical problems urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of sealing device, and lubricating oil can be played excellent sealing effectiveness by this sealing device, and this device can also stop high steam to penetrate in lubricating oil, thus ensureing the lubricating quality of lubricating oil.
For reaching above-mentioned purpose, this utility model provides following technical scheme:
A kind of sealing device, including: it is set in the disc on power shaft, also including the oil seal ring being connected on casing, the inner ring surface of described oil seal ring is provided with many groups first arranged vertically and seals tooth, the outer ring surface of described many group the first sealing teeth and described disc cooperatively forms axial seal；With or the side of described oil seal ring be provided with many groups second radially arranged and seal tooth, side-fit of described many groups the second sealing teeth and at least one gear oil teeth of described disc form radial seals.
Preferably, described oil seal ring is between the first gear oil tooth and second gear oil tooth of described disc, and the outer ring surface between described first gear oil tooth and described second gear oil tooth of described many group the first sealing teeth and described disc cooperatively forms described axial seal.
Preferably, described oil seal ring is provided with described second sealing tooth of organizing more on the side of the second gear oil tooth of described disc, and the side-fit of described many group the second sealing teeth and described second gear oil tooth forms described radial seal.
Preferably, also including the oil baffle being arranged between the second gear oil tooth of described disc and third gear oil tooth, described oil baffle is connected with described oil seal ring.
Preferably, described oil baffle is connected by screw on described oil seal ring.
Preferably, described oil seal ring offers oil trap on the side of described second gear oil tooth, and described oil trap connects with fuel tank.
Preferably, the outer ring surface between described first gear oil tooth and described second gear oil tooth of described disc being provided with bulge loop, the outer peripheral face of described many group the first sealing teeth and described bulge loop cooperatively forms described axial seal.
This utility model additionally provides a kind of oil vapour combination sealing arrangement, including labyrinth ring, packing housing, also includes oil-sealing arrangement, and described oil-sealing arrangement is any one sealing device above-mentioned.
Preferably, described labyrinth ring includes three groups arranged vertically, and the labyrinth ring near steam turbine wheel hub is main labyrinth ring, and the labyrinth ring adjacent with described main labyrinth ring is the first secondary labyrinth ring, farthest away from the secondary labyrinth ring of labyrinth ring second of described steam turbine wheel hub.
Preferably, described packing housing offers the first passage and the second passage, described first through hole is between the secondary labyrinth ring of described main labyrinth ring and described first, described second passage is between the described first secondary labyrinth ring and the described second secondary labyrinth ring, and described first passage does not connect mutually with described second through hole.
Can be seen that from technique scheme, oily vapour combination sealing arrangement in this utility model is additionally arranged oil seal ring, in this oil seal ring first seals tooth can provide axial seal, and second seals tooth can provide radial seal, and this axial seal and radial seal all can improve the sealing effectiveness of lubricating oil.It addition, the first sealing tooth and second on oil seal ring seals tooth and also acts as the effect of packing, it is prevented that high steam penetrates in lubricating oil, so that it is guaranteed that the lubricant effect of lubricating oil.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Disc that Fig. 1 provides for this utility model one specific embodiment and the assembling schematic diagram of oil seal ring；
The assembling schematic diagram of the labyrinth ring that Fig. 2 provides for this utility model one specific embodiment and packing housing；
The structural representation of the oily vapour combination sealing arrangement that Fig. 3 provides for this utility model one specific embodiment.
Wherein, 1 it is oil seal ring, 11 is the first sealing tooth, 12 is the second sealing tooth, 13 is oil trap, 2 is disc, 21 is first gear oil tooth, 22 is second gear oil tooth, 23 is third gear oil tooth, 24 is bulge loop, 3 is oil baffle, 4 is screw, 5 is packing housing, 51 is main labyrinth ring, 52 is the first secondary labyrinth ring, 53 is the second secondary labyrinth ring, 6 is steam turbine wheel hub, 7 is sliding bearing, 8 is casing.
Detailed description of the invention
This utility model provides a kind of sealing device, and lubricating oil can be played excellent sealing effectiveness by this sealing device, and this device can also stop high steam to penetrate in lubricating oil, thus ensureing the lubricating quality of lubricating oil.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on embodiment of the present utility model, all other embodiments that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of this utility model protection.
Refer to Fig. 1-Fig. 3, in this utility model one specific embodiment, sealing device includes disc 2 and oil seal ring 1.
Disc 2 is sleeved on power shaft.Disc 2 has three groups of gear oil teeth of axial arranging, and the gear oil tooth near sliding bearing 7 is first gear oil tooth 21, and the gear oil tooth farthest away from sliding bearing 7 is third gear oil tooth 23, and middle gear oil tooth is second gear oil tooth 22.
Being provided with many groups first arranged vertically on the inner ring surface of oil seal ring 1 and seal tooth 11, the outer ring surface of many groups the first sealing tooth 11 and disc 2 cooperatively forms labyrinth type axial seal.This axial seal can improve the sealing effectiveness of lubricating oil, can also play the effect of packing simultaneously, it is prevented that steam enters in lubricating oil.Can also being provided with many groups second radially arranged on the side of oil seal ring 1 and seal tooth 12, side-fit of at least one gear oil tooth of many groups the second sealing tooth 12 and disc 2 forms mazy radial seal.Such as, second seal tooth 12 and simultaneously and the side-fit of the first gear oil tooth 21 of disc 2 and second gear oil tooth 22, can thus form the radial seal of two places.Can also simultaneously and the side-fit of the second gear oil tooth 22 of disc 2 and third gear oil tooth 23, it is also possible to individually and first gear oil tooth 21, second gear oil tooth 22, third gear oil tooth 23 the cooperation of side.Radial seal can improve the sealing effectiveness of lubricating oil, can also play the effect of packing simultaneously, it is prevented that steam enters in lubricating oil.No matter oil seal ring 1 is only to have axial seal, only have radial seal, still has axial seal and radial seal simultaneously, each falls within the protection domain of the present embodiment.
In this utility model one specific embodiment, oil seal ring 1 prioritizing selection in above-mentioned is arranged between the first gear oil tooth 21 of disc 2 and second gear oil tooth 22, so, many groups first on the inner ring surface of oil seal ring 1 seal tooth 11 just and the outer ring surface between first gear oil tooth 21 and second gear oil tooth 22 of disc 2 cooperatively form above-mentioned in axial seal.Axial seal in the present embodiment, near sliding bearing, can play preferably sealing effectiveness.
Further, oil seal ring 1 be provided with on the side of second gear oil tooth 22 above-mentioned in many groups second seal tooth 12, many groups the second sealing tooth 12 and the side-fit of second gear oil tooth 22 formed above-mentioned in radial seal.Common steam turbine oil seal apparatus only has the axial seal of three places, and the sealing device in the present embodiment has axial seal everywhere and place radial seal, effectively ensure that the sealing effectiveness of lubricating oil.It addition, the axial seal that provides of the oil seal ring in the present embodiment and radial seal also have the effect of packing, it is prevented that steam penetrates in lubricating oil.
In this utility model one specific embodiment, being additionally arranged oil baffle 3, this oil baffle 3 is between second gear oil tooth 22 and third gear oil tooth 23.This oil baffle 3 coordinates with the outer peripheral face of disc 2, for stopping the flowing of lubricating oil, further functions as the effect of oil sealing.This oil baffle 3 is also not moving part.It addition, oil baffle 3 can also isolate high steam meets the cold rear water droplet formed, it is prevented that water droplet enters in lubricating oil.
In this utility model one specific embodiment, having offered oil trap 13 at oil seal ring 1 on the side of second gear oil tooth 22, this oil trap 13 connects with fuel tank.Lubricating oil is blocked between oil baffle 3 and second gear oil tooth 22 by the oil baffle 3 in above-mentioned, and forces lubricating oil to flow into oil trap 13, and then flows back in fuel tank.
In this utility model one specific embodiment, oil baffle 3 prioritizing selection in above-mentioned is connected on oil seal ring 1 by screw 4.Screw connects, and is connected firmly, and convenient dismounting.
In order to improve oil seal ring 1 further first seals the sealing effectiveness of tooth 11, in this utility model one specific embodiment, being provided with bulge loop 24 on the outer ring surface between the first gear oil tooth 21 and second gear oil tooth 22 of disc 2, the outer peripheral face of this bulge loop 24 and first seals tooth 11 and cooperatively forms lubricating oil axial seal.The setting of bulge loop 24 extends the circulation path of lubricating oil, thus reaching to improve further the purpose of sealing effectiveness.
The invention also discloses a kind of oil vapour combination sealing arrangement, including labyrinth ring and packing housing, labyrinth ring is connected on packing housing 5, and packing housing 5 is commonly connected on casing 8.Gland sealing gear on labyrinth ring constitutes labyrinth gland with the gland sealing gear on axle sleeve.Also including oil-sealing arrangement, this oil-sealing arrangement is any one described sealing device above-mentioned, and above-mentioned sealing device has the effect above, and the oily vapour combination sealing arrangement with above-mentioned sealing device has the effect above equally, therefore repeats no more herein.
In this utility model one specific embodiment, labyrinth ring includes three groups arranged vertically.Labyrinth ring near steam turbine wheel hub 6 is main labyrinth ring 51, and the labyrinth ring farthest away from steam turbine wheel hub 6 is the second secondary labyrinth ring 53, and centrally located labyrinth ring is the first secondary labyrinth ring 52.Three groups of labyrinth rings effectively ensure that the sealing of high steam.
Further, in this utility model one specific embodiment, the first passage and the second passage are also offered.First passage is opened on packing housing 5, and between main labyrinth ring 51 and the first secondary labyrinth ring 52.Second passage is also opened on packing housing 5, between the first secondary labyrinth ring 52 and the second secondary labyrinth ring 53.And first passage and the second passage not connected.And the steam after main labyrinth ring 51 is relatively larger due to pressure, so the air extractor that prioritizing selection is special, steam is extracted out.So amounting to three road exhaust apparatus, this three roads exhaust apparatus is separate, thus avoiding the backflow of steam.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a sealing device, including: it is set in the disc (2) on power shaft, it is characterized in that, also include the oil seal ring (1) being connected on casing (8), being provided with many groups first arranged vertically on the inner ring surface of described oil seal ring (1) and seal tooth (11), the outer ring surface of described many group the first sealings tooth (11) and described disc (2) cooperatively forms axial seal；With or the side of described oil seal ring (1) be provided with many groups second radially arranged and seal tooth (12), side-fit of described many group the second sealings tooth (12) and at least one gear oil teeth of described disc (2) form radial seals.
2. sealing device according to claim 1, it is characterized in that, described oil seal ring (1) is positioned between first gear oil tooth (21) of described disc (2) and second gear oil tooth (22), and the outer ring surface being positioned between described first gear oil tooth (21) and described second gear oil tooth (22) of described many group the first sealings tooth (11) and described disc (2) cooperatively forms described axial seal.
3. sealing device according to claim 2, it is characterized in that, described oil seal ring (1) is provided with described second sealing tooth (12) of organizing more on the side of second gear oil tooth (22), and the side-fit of described many group the second sealings tooth (12) and described second gear oil tooth (22) forms described radial seal.
4. sealing device according to claim 2, it is characterized in that, also including the oil baffle (3) being arranged between second gear oil tooth (22) of described disc (2) and third gear oil tooth (23), described oil baffle (3) is connected with described oil seal ring (1).
5. sealing device according to claim 4, it is characterised in that described oil baffle (3) is connected on described oil seal ring (1) by screw (4).
6. sealing device according to claim 4, it is characterized in that, described oil seal ring (1) offers oil trap (13) on the side of described second gear oil tooth (22), and described oil trap (13) connects with fuel tank.
7. sealing device according to claim 2, it is characterized in that, being provided with bulge loop (24) on the outer ring surface being positioned between described first gear oil tooth (21) and described second gear oil tooth (22) of described disc (2), the outer peripheral face of described many group the first sealings tooth (11) and described bulge loop (24) cooperatively forms described axial seal.
8. an oily vapour combination sealing arrangement, including labyrinth ring, packing housing, also includes oil-sealing arrangement, it is characterised in that described oil-sealing arrangement is the sealing device as described in claim 1-7 any one.
9. oil vapour combination sealing arrangement according to claim 8, it is characterized in that, described labyrinth ring includes three groups arranged vertically, labyrinth ring near steam turbine wheel hub (6) is main labyrinth ring (51), the labyrinth ring adjacent with described main labyrinth ring (51) is the first secondary labyrinth ring (52), farthest away from the secondary labyrinth ring (53) of labyrinth ring second of described steam turbine wheel hub (6).
10. oil vapour combination sealing arrangement according to claim 9, it is characterized in that, described packing housing (5) offers the first passage and the second passage, described first through hole is positioned between described main labyrinth ring (51) and the described first secondary labyrinth ring (52), described second passage is positioned between the described first secondary labyrinth ring (52) and the described second secondary labyrinth ring (53), and described first passage does not connect mutually with described second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099807.XU CN205350365U (en) | 2016-02-01 | 2016-02-01 | Sealing device and oily vapour combination sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099807.XU CN205350365U (en) | 2016-02-01 | 2016-02-01 | Sealing device and oily vapour combination sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350365U true CN205350365U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099807.XU Expired - Fee Related CN205350365U (en) | 2016-02-01 | 2016-02-01 | Sealing device and oily vapour combination sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508621A (en) * | 2016-02-01 | 2016-04-20 | 重庆齿轮箱有限责任公司 | Sealing device and oil-steam combined sealing device |
-
2016
- 2016-02-01 CN CN201620099807.XU patent/CN205350365U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508621A (en) * | 2016-02-01 | 2016-04-20 | 重庆齿轮箱有限责任公司 | Sealing device and oil-steam combined sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20200201 |