CN214146598U - Oil-gas seal combined sealing structure - Google Patents
Oil-gas seal combined sealing structure Download PDFInfo
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- CN214146598U CN214146598U CN202022647046.6U CN202022647046U CN214146598U CN 214146598 U CN214146598 U CN 214146598U CN 202022647046 U CN202022647046 U CN 202022647046U CN 214146598 U CN214146598 U CN 214146598U
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- oil
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- main shaft
- sealing
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Abstract
The utility model discloses a seal structure of oil gas seal combination, which comprises a housing, the surface of casing is provided with the mounting groove, oil blanket and atmoseal are installed through the bolt to the inboard of mounting groove, the oil blanket is connected with the main shaft with the inboard of atmoseal, the surface of main shaft is provided with the disc, the surface and the oil blanket contact of disc, the surface of oil blanket is provided with the oil blocking ring groove. The sealing structure can improve the sealing effect of the sealing structure through the arrangement of the oil thrower, the oil blocking ring groove, the first carbon ring, the sealing ring groove, the oil guide hole, the oil return hole, the second carbon ring and the air sealing tooth groove; the purposes of internally sealing oil, externally sealing gas and dust can be realized under the high-temperature state through the arrangement of the heat insulation wall.
Description
Technical Field
The utility model relates to a sealing mechanism technical field specifically is a seal structure of oil gas seal combination.
Background
With the development of compressor technology, the leakage prevention requirements on the main shaft and the shell are higher and higher. The leakage of gas has a considerable effect on the efficiency of the compressor, and the leakage of lubricating oil also affects the normal operation of the whole unit.
The existing sealing between the main shaft and the shell of the compressor mostly adopts mechanical sealing as a leakage-proof device. When the sealing effect of the oil-gas sealing device is poor and the rotating speed of the rotating shaft is high, a small amount of oil can be sealed by the oil-gas sealing device to form oil mist outwards and is emitted outwards.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure of oil gas seal combination to it is poor to solve the oil gas seal effect, leads to the problem of oil gas exosmosis when the main shaft rotates at a high speed.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a seal structure of oil gas seal combination, includes the casing, the surface of casing is provided with the mounting groove, and the mounting groove is convex circular slot, oil blanket and atmoseal are installed through the bolt to the inboard of mounting groove, the oil blanket is connected with the main shaft with the inboard of atmoseal, the surface of main shaft is provided with the disc, the surface and the oil blanket contact of disc, the surface of oil blanket is provided with hinders the oil ring groove, and epaxial oil throws out through the disc, and partial oil is thrown away to the casing lateral wall, gets rid of the oil stream that the casing lateral wall was gone into and hinders oil ring groove surface to flow into inside the casing along hindering the oil ring groove.
Please refer to the figure, the main shaft is provided with a first installation ring groove corresponding to the surface of the oil seal, the inner side of the first installation ring groove is connected with a first carbon ring in a sliding manner, a first spring is arranged between the first carbon ring and the first installation ring groove, the surface of the first carbon ring is contacted with the joint of the main shaft and the first installation ring groove of the oil seal, and the first spring is abutted against the first carbon ring to connect the main shaft and the joint of the first installation ring groove of the oil seal, so that the oil entering between the main shaft and the oil seal can be effectively reduced.
Referring to the drawings, a sealing ring groove is correspondingly formed on the surface of the main shaft and the surface of the oil seal, the sealing ring groove is used for intercepting and preventing oil from permeating outwards along the space between the main shaft and the oil seal, and an oil guide hole is formed in the lower end of the sealing ring groove and is used for discharging oil through the oil guide hole.
Referring to the drawing, an oil return hole is formed in the surface of the oil seal, the oil return hole is communicated with the oil guide hole, oil leaking into the sealing ring groove enters the inner side of the oil return hole downwards through the oil guide hole, and finally flows into the interior of the casing through the oil return hole.
Referring to the figure, an air seal tooth groove is arranged at the joint of the air seal and the main shaft, and the air seal tooth groove is used for sealing the air seal and the main shaft.
Referring to the drawing, a second installation ring groove is formed in the surface of the gas seal, a second carbon ring is connected to the inner side of the second installation ring groove in a sliding mode, a second spring is arranged between the second carbon ring and the second installation ring groove, the surface of the second carbon ring is in contact with the oil seal, the second carbon ring is pushed by the second spring to abut against the oil seal, and the joint of the oil seal, the gas seal and the main shaft is sealed.
Referring to the drawing, the surface of the gas seal is provided with a heat insulation wall, the heat insulation wall can insulate the gas seal when the working temperature is higher, so that oil mist generated due to high temperature is prevented, the gas seal can effectively seal the oil mist generated due to high rotating speed of the main shaft in the shell, and gas or dust entering the heat insulation wall can be isolated, so that the purposes of sealing oil in the shell and sealing gas and dust outside the shell are achieved.
Compared with the prior art, the beneficial effects of the utility model are that: the sealing structure can improve the sealing effect of the sealing structure through the arrangement of the oil thrower, the oil blocking ring groove, the first carbon ring, the sealing ring groove, the oil guide hole, the oil return hole, the second carbon ring and the air sealing tooth groove; the purposes of internally sealing oil, externally sealing gas and dust can be realized under the high-temperature state through the arrangement of the heat insulation wall.
Drawings
Fig. 1 is a sectional view of the overall structure of the present invention.
In the figure: the device comprises a main shaft 1, an oil thrower 11, a sealing ring groove 13, an oil seal 2, an oil blocking ring groove 21, a first mounting ring groove 22, a first carbon ring 23, a first spring 24, an oil guide hole 25, an oil return hole 26, an air seal 3, an air seal tooth groove 31, a second mounting ring groove 32, a second carbon ring 33, a second spring 34, a machine shell 4, a mounting groove 41 and a heat insulation wall 5.
Detailed Description
Please refer to fig. 1, an oil-gas seal combined sealing structure comprises a housing 4, a mounting groove 41 is formed in the surface of the housing 4, the mounting groove 41 is a convex circular groove, an oil seal 2 and an air seal 3 are mounted on the inner side of the mounting groove 41 through bolts, the inner sides of the oil seal 2 and the air seal 3 are connected with a main shaft 1, an oil thrower 11 is arranged on the surface of the main shaft 1, the surface of the oil thrower 11 is in contact with the oil seal 2, an oil blocking ring groove 21 is formed in the surface of the oil seal 2, oil on the main shaft 1 is thrown out through the oil thrower 11, part of the oil is thrown to the side wall of the housing 4, the oil thrown to the side wall of the housing 4 flows into the surface of the oil blocking ring groove 21 and flows into the interior of the housing 4 along the oil blocking ring groove 21.
Referring to fig. 1, a first installation ring groove 22 is correspondingly formed in the surfaces of a spindle 1 and an oil seal 2, a first carbon ring 23 is slidably connected to the inner side of the first installation ring groove 22, a first spring 24 is arranged between the first carbon ring 23 and the first installation ring groove 22, the surface of the first carbon ring 23 contacts with the joint of the spindle 1 and the first installation ring groove 22 of the oil seal 2, the first spring 24 abuts against the joint of the first carbon ring 23 to connect the spindle 1 and the first installation ring groove 22 of the oil seal 2, and oil entering between the spindle 1 and the oil seal 2 can be effectively reduced.
Referring to fig. 1, a sealing ring groove 13 is correspondingly formed on the surfaces of the main shaft 1 and the oil seal 2, the sealing ring groove 13 is used for intercepting flow to prevent oil from permeating outwards along the space between the main shaft 1 and the oil seal 2, and an oil guide hole 25 is formed at the lower end of the sealing ring groove 13 and is used for discharging oil through the oil guide hole 25.
Referring to fig. 1, an oil return hole 26 is formed in the surface of the oil seal 2, the oil return hole 26 communicates with the oil guide hole 25, oil leaking into the seal ring groove 13 flows downward through the oil guide hole 25 into the inner side of the oil return hole 26, and finally flows into the interior of the housing 4 through the oil return hole 26.
Referring to fig. 1, an air seal spline 31 is disposed at a connection portion of the air seal 3 and the main shaft 1, and the air seal spline 31 is used for sealing between the air seal 3 and the main shaft 1.
Referring to fig. 1, a second mounting ring groove 32 is formed in the surface of the gas seal 3, a second carbon ring 33 is slidably connected to the inner side of the second mounting ring groove 32, a second spring 34 is arranged between the second carbon ring 33 and the second mounting ring groove 32, the surface of the second carbon ring 33 is in contact with the oil seal 2, the second carbon ring 33 is pushed by the second spring 34 to abut against the oil seal 2, and the joint of the oil seal 2, the gas seal 3 and the main shaft 1 is sealed.
Referring to fig. 1, a heat insulation wall 5 is disposed on the surface of the gas seal 3, and the heat insulation wall 5 can insulate the gas seal 3 when the working temperature is high, so as to prevent oil mist generated due to high temperature, so that the gas seal 3 can effectively seal the oil mist generated due to high rotation speed of the spindle 1 in the housing 4, and can also insulate gas or dust entering the heat insulation wall 5, thereby achieving the purpose of sealing oil inside and sealing gas and dust outside.
The utility model discloses when concrete implementation: when the main shaft 1 rotates, oil on the main shaft 1 is thrown out through the oil thrower 11, part of the oil is thrown to the side wall of the machine shell 4, the oil thrown to the side wall of the machine shell 4 flows into the surface of the oil blocking ring groove 21 and flows into the interior of the machine shell 4 along the oil blocking ring groove 21, the oil can be reduced from entering between the main shaft 1 and the oil seal 2, when the oil enters between the oil seal 2 and the main shaft 1, the oil is abutted to the joint of the first carbon ring 23 and the first installation ring groove 22 of the main shaft 1 and the oil seal 2 through the first spring 24 and is contacted with the joint, the oil can be effectively reduced from continuing to permeate outwards, after the oil passes through the first carbon ring 23, the oil is intercepted through the sealing ring groove 13 and is discharged into the interior of the machine shell 4 through the oil guide hole 25 and the oil return hole 26, and therefore the oil can be effectively prevented from permeating; the joint of the gas seal 3, the main shaft 1 and the oil seal 2 is sealed by pushing a second carbon ring 33 to abut through a second spring 34, and the joint of the gas seal 3 and the main shaft 1 is provided with a gas seal tooth groove 31, so that gas leakage can be reduced under the combined action of the gas seal 3 and the main shaft 1;
thermal-insulated wall 5 insulates against heat to atmoseal 3 when operating mode temperature is higher, prevents to produce the oil mist because of high temperature, makes atmoseal 3 carry out effectual sealing to the oil mist that produces because of the 1 rotational speed of main shaft is high in the casing 4, also can completely cut off the gas or the dust that get into thermal-insulated wall 5, has realized the purpose of internally sealed oil, to outer gas and dust.
Claims (7)
1. The utility model provides a seal structure of oil gas seal combination, includes casing (4), its characterized in that: the surface of casing (4) is provided with mounting groove (41), oil blanket (2) and atmoseal (3) are installed through the bolt to the inboard of mounting groove (41), oil blanket (2) are connected with main shaft (1) with the inboard of atmoseal (3), the surface of main shaft (1) is provided with oil slinger (11), the surface and oil blanket (2) contact of oil slinger (11), the surface of oil blanket (2) is provided with hinders oil ring groove (21).
2. The oil and gas seal combined sealing structure of claim 1, wherein: main shaft (1) and oil blanket (2) surface correspondence are provided with first installation annular (22), the inboard sliding connection of first installation annular (22) has first carbocycle (23), first carbocycle (23) and first installation annular (22) between be provided with first spring (24), the surface of first carbocycle (23) and main shaft (1) and the first installation annular (22) of oil blanket (2) link up the department contact.
3. The oil and gas seal combined sealing structure of claim 1, wherein: the main shaft (1) is provided with a sealing ring groove (13) corresponding to the surface of the oil seal (2), and the lower end of the sealing ring groove (13) is provided with an oil guide hole (25).
4. The oil and gas seal combined sealing structure of claim 1, wherein: and an oil return hole (26) is formed in the surface of the oil seal (2), and the oil return hole (26) is communicated with the oil guide hole (25).
5. The oil and gas seal combined sealing structure of claim 1, wherein: and an air seal tooth groove (31) is arranged at the joint of the air seal (3) and the main shaft (1).
6. The oil and gas seal combined sealing structure of claim 1, wherein: the surface of atmoseal (3) is provided with second installation annular (32), the inboard sliding connection of second installation annular (32) has second carbocycle (33), be provided with second spring (34) between second carbocycle (33) and second installation annular (32), the surface and the oil blanket (2) contact of second carbocycle (33).
7. The oil and gas seal combined sealing structure of claim 1, wherein: and a heat insulation wall (5) is arranged on the surface of the air seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647046.6U CN214146598U (en) | 2020-11-16 | 2020-11-16 | Oil-gas seal combined sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022647046.6U CN214146598U (en) | 2020-11-16 | 2020-11-16 | Oil-gas seal combined sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN214146598U true CN214146598U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022647046.6U Active CN214146598U (en) | 2020-11-16 | 2020-11-16 | Oil-gas seal combined sealing structure |
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| CN (1) | CN214146598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135586A (en) * | 2021-10-28 | 2022-03-04 | 四川中烟工业有限责任公司 | Novel oil seal seat |
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2020
- 2020-11-16 CN CN202022647046.6U patent/CN214146598U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135586A (en) * | 2021-10-28 | 2022-03-04 | 四川中烟工业有限责任公司 | Novel oil seal seat |
| CN114135586B (en) * | 2021-10-28 | 2023-11-10 | 四川中烟工业有限责任公司 | Novel oil seal seat |
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