CN220248301U - Structure for preventing oil leakage of main shaft of piston compressor - Google Patents
Structure for preventing oil leakage of main shaft of piston compressor Download PDFInfo
- Publication number
- CN220248301U CN220248301U CN202321955393.2U CN202321955393U CN220248301U CN 220248301 U CN220248301 U CN 220248301U CN 202321955393 U CN202321955393 U CN 202321955393U CN 220248301 U CN220248301 U CN 220248301U
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- CN
- China
- Prior art keywords
- oil seal
- framework oil
- main shaft
- crankcase
- crankshaft
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 79
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model discloses a structure for preventing oil leakage of a main shaft of a piston compressor, which comprises a framework oil seal seat and a framework oil seal, wherein the framework oil seal seat is arranged on the framework oil seal seat; the inner side of the position where the crank case is matched with the crank shaft is provided with a mounting groove, and the framework oil seal seat is embedded into the mounting groove; one end of the crankshaft is connected with an external motor, the other end of the crankshaft passes through the crankcase and extends to the other end of the crankcase, the crankshaft is divided into a main shaft part and a crankshaft part, and the crankshaft part is positioned in the crankcase; the main shaft portion of the crankshaft near one end of the motor is assembled with the crankcase by this structure. The structure of the utility model takes the framework oil seal as a main sealing part of the main shaft, and the spring in the framework oil seal is tightened and naturally closely attached to the main shaft, thereby playing a good role in preventing lubricating oil from leaking outwards through the main shaft. In order to be convenient to replace and maintain, the framework oil seal is matched with the crankcase through the framework oil seal seat, the crankcase cannot be damaged, the framework oil seal seat and the framework oil seal can be directly replaced after being damaged, the production cost is reduced, and the service life is prolonged.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a structure for preventing oil leakage of a main shaft of a piston compressor.
Background
The use of compressors is very common in gas production enterprises; the piston compressor is generally used, for gas production enterprises, purification and separation are usually needed to be realized through various links such as pressurization, cooling, liquefaction and the like of the gas, and the compressor is the most main equipment in the whole production process and also the forefront equipment, which means that the production is kept, the compressor needs to be operated for a long time, and higher requirements are put on the sealing performance of various parts of the compressor, especially the sealing of a rotating part and a compressor shell.
The main shaft and the shell of the original factory production of the compressor are sealed by adopting sealing rings made of industrial felt materials, the service life is generally only 3 months continuously, the main shaft and the shell are easy to wear, the sealing effect of the main shaft and the shell is reduced after the main shaft and the shell are worn, lubricating oil in a crankcase is finally leaked to the outside of the shell through a gap, the lubricating oil is lost, and certain risk hidden danger is caused for normal operation of equipment.
Accordingly, based on the above technical problems, a person skilled in the art has a need to develop a structure for preventing oil leakage of a main shaft of a piston compressor.
Disclosure of Invention
The utility model aims to provide a structure for preventing oil leakage of a main shaft of a piston compressor, which has the advantages of novel structure, convenience in disassembly and replacement, no damage to a crankcase shell and good sealing effect.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model relates to a structure for preventing oil leakage of a main shaft of a piston compressor, which is integrated at the joint of a crankshaft and a crankcase of the piston compressor, and comprises:
a framework oil seal seat; and
a framework oil seal embedded in the framework oil seal seat;
the inner side of the position where the crank case is matched with the crank shaft is provided with a mounting groove, and the framework oil seal seat is embedded into the mounting groove and is assembled and fixed with the crank case;
one end of the crankshaft is connected with an external motor, the other end of the crankshaft penetrates through the crankcase and extends to the other end of the crankcase, the crankshaft is divided into a main shaft part and a crankshaft part, and the crankshaft part is positioned in the crankcase;
the main shaft part of the crankshaft, which is close to one end of the motor, is assembled with the crankcase through the structure.
Further, the skeleton oil blanket seat includes:
a base; and
an assembling portion extending outwardly along an outer peripheral side of the seat body;
the base body is provided with a shaft hole along the axial direction of the base body, the base body is provided with a framework oil seal groove, and the framework oil seal is embedded into the framework oil seal groove;
the seat body of the framework oil seal seat is embedded into the mounting groove, and the framework oil seal seat is assembled and fixed with the inner wall of the crankcase through the assembly part.
Further, the mounting groove is divided into:
a first mounting groove for accommodating the seat body; and
a second mounting groove communicating with the first mounting groove and accommodating the fitting portion;
the outer periphery side of pedestal is provided with three along its circumference interval the assembly portion, the assembly portion pass through fastening bolt with the crankcase assembly is fixed in the second mounting groove.
Further, a sealing ring is arranged between the base body and the bottom of the first mounting groove;
and the sealing ring is made of polytetrafluoroethylene.
Further, the slotting size of the framework oil seal slot is matched with that of the framework oil seal;
the outer diameter of the framework oil seal is 210mm, the inner diameter of the framework oil seal is 180mm, and the thickness of the framework oil seal is 20mm.
In the technical scheme, the structure for preventing oil leakage of the main shaft of the piston compressor has the following beneficial effects:
the structure of the utility model takes the framework oil seal as a main sealing part of the main shaft, and the spring in the framework oil seal is tightened and naturally closely attached to the main shaft, thereby playing a good role in preventing lubricating oil from leaking outwards through the main shaft. In order to be convenient to replace and maintain, the framework oil seal is matched with the crankcase through the framework oil seal seat, the crankcase cannot be damaged, the framework oil seal seat and the framework oil seal can be directly replaced after being damaged, the production cost is reduced, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic structural view of a structure for preventing oil leakage of a main shaft of a piston compressor according to an embodiment of the present utility model;
fig. 2 is a schematic structural view of a crankcase that is matched with a structure for preventing oil leakage of a main shaft of a piston compressor according to an embodiment of the present utility model;
fig. 3 is an enlarged view of a structure for preventing oil leakage of a main shaft of a piston compressor according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a skeleton oil seal seat of a structure for preventing oil leakage of a main shaft of a piston compressor according to an embodiment of the present utility model.
1. A crankcase; 2. a motor; 3. a crankshaft; 4. a framework oil seal seat; 5. a framework oil seal; 6. a seal ring;
101. a first mounting groove; 102. a second mounting groove;
301. a crank part; 302. a main shaft portion;
401. a base; 402. and a fitting portion.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
See fig. 1-4;
the present embodiment discloses a structure for preventing oil leakage of a main shaft of a piston compressor, which is integrated at a junction of a crankshaft 3 and a crankcase 1 of the piston compressor, the structure comprising:
a framework oil seal seat 4; and
a framework oil seal 5 embedded in the framework oil seal seat 4;
the inner side of the position where the crank case 1 is matched with the crank shaft 3 is provided with a mounting groove, and the framework oil seal seat 4 is embedded into the mounting groove and is assembled and fixed with the crank case 1;
one end of the crankshaft 3 is connected with an external motor 2, the other end of the crankshaft 3 passes through the crankcase 1 and extends to the other end of the crankcase 1, the crankshaft 3 is divided into a main shaft part 302 and a crankshaft part 301, and the crankshaft part 302 is positioned in the crankcase 1;
the main shaft portion 302 of the crankshaft 3 near one end of the motor 2 is assembled with the crankcase 1 by this structure.
Specifically, the present embodiment discloses a structure for preventing oil leakage of a main shaft of a piston compressor using a skeleton oil seal 5 as a sealing member. The crankshaft comprises a crankcase 1 and a crankshaft 3, wherein a main shaft part of the crankshaft 3 is in sealing connection with the crankcase 1 through a framework oil seal 5, and the framework oil seal 5 is provided with a framework oil seal seat 4 for facilitating later replacement and maintenance.
Preferably, the skeleton oil seal seat 4 of the present embodiment includes:
a base 401; and
a fitting portion 402 extending outwardly along an outer peripheral side of the housing 401;
the base 401 is provided with a shaft hole along the axial direction, the base 401 is provided with a framework oil seal groove, and the framework oil seal 5 is embedded into the framework oil seal groove;
the seat body of the skeleton oil seal seat 4 is embedded into the mounting groove, and the skeleton oil seal seat 4 is assembled and fixed with the inner wall of the crankcase 1 through the assembling part 402.
Wherein, the mounting groove is divided into:
a first mounting groove 101 accommodating the seat body 401; and
a second mounting groove 102 communicating with the first mounting groove 101 and accommodating the fitting portion 402;
the outer peripheral side of the housing 401 is provided with three fitting portions 402 at intervals along the circumferential direction thereof, and the fitting portions 402 are fitted and fixed in the second mounting groove 102 with the crankcase 1 by fastening bolts.
The present embodiment further defines the structure of the skeleton oil seal holder 4, and first, a holder body 401 capable of accommodating the skeleton oil seal 5 is designed, and an assembling portion 402 formed in the circumferential direction of the holder body 401 for facilitating the assembling of the skeleton oil seal holder 4 and the crankcase 1, wherein the holder body 401 is capable of being fitted into the first mounting groove 101 of the crankcase 1, and the assembling portion 402 is capable of being fitted into the second mounting groove 102 of the crankcase 1. Since the number of the assembling parts 402 is three and the assembling parts are uniformly distributed in the circumferential direction of the seat body 401, three second mounting grooves 102 are required to be formed, so that the second mounting grooves 102 can be embedded into the assembling parts 402 and simultaneously play a role in stopping rotation, and the structural reliability and stability of the assembled seat body 401 and the crankcase 1 are ensured.
In order to further ensure the tightness between the seat 401 and the crankcase 1, a seal ring 6 is provided between the seat 401 and the bottom of the first mounting groove 101 in this embodiment;
the sealing ring 6 is made of polytetrafluoroethylene.
Preferably, the slotting size of the skeleton oil seal slot of the embodiment is matched with that of the skeleton oil seal 5;
the outer diameter of the framework oil seal 5 is 210mm, the inner diameter of the framework oil seal 5 is 180mm, and the thickness of the framework oil seal 5 is 20mm.
In the embodiment, the traditional industrial felt sealing ring is replaced by the framework oil seal 5, the service life of the framework oil seal 5 is far longer than that of the industrial felt sealing ring, and the production cost can be reduced to a certain extent. The risk of equipment operation can also be reduced, and the equipment reliability is improved.
In the technical scheme, the structure for preventing oil leakage of the main shaft of the piston compressor has the following beneficial effects:
according to the structure, the framework oil seal 5 is used as a main sealing part of the main shaft, and the springs in the framework oil seal 5 are tightly and naturally attached to the main shaft, so that the effect of preventing lubricating oil from leaking outwards through the main shaft is achieved. In order to be convenient to replace and maintain, the framework oil seal 5 is matched with the crankcase 1 through the framework oil seal seat 4, the crankcase 1 is not damaged, the framework oil seal seat 4 and the framework oil seal 5 can be directly replaced after being damaged, the production cost is reduced, and the service life is prolonged.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (5)
1. Structure for preventing oil leakage of a main shaft of a piston compressor, which is integrated at the junction of a crankshaft (3) and a crankcase (1) of the piston compressor, characterized in that it comprises:
a framework oil seal seat (4); and
a framework oil seal (5) embedded in the framework oil seal seat (4);
the inner side of the position where the crank case (1) is matched with the crank shaft (3) is provided with a mounting groove, and the framework oil seal seat (4) is embedded into the mounting groove and is assembled and fixed with the crank case (1);
one end of the crankshaft (3) is connected with an external motor (2), the other end of the crankshaft (3) penetrates through the crankcase (1) and extends to the other end of the crankcase (1), the crankshaft is divided into a main shaft part (302) and a crankshaft part (301), and the crankshaft part (301) is positioned in the crankcase (1);
a main shaft portion (302) of the crankshaft (3) near one end of the motor (2) is assembled with the crankcase (1) by this structure.
2. Structure for preventing oil leakage of a main shaft of a piston compressor according to claim 1, characterized in that said skeleton oil seal seat (4) comprises:
a base (401); and
a fitting portion (402) extending outwardly along an outer peripheral side of the housing (401);
the base body (401) is provided with a shaft hole along the axial direction of the base body, the base body (401) is provided with a framework oil seal groove, and the framework oil seal (5) is embedded into the framework oil seal groove;
the base body (401) of the framework oil seal base (4) is embedded into the mounting groove, and the framework oil seal base (4) is assembled and fixed with the inner wall of the crankcase (1) through the assembly part (402).
3. The structure for preventing oil leakage of a main shaft of a piston compressor according to claim 2, wherein the installation groove is divided into:
a first mounting groove (101) for accommodating the seat body (401); and
a second mounting groove (102) communicating with the first mounting groove (101) and accommodating the fitting portion (402);
the outer periphery side of the base body (401) is provided with three assembly parts (402) at intervals along the circumferential direction, and the assembly parts (402) are assembled and fixed in the second mounting groove (102) with the crank case (1) through fastening bolts.
4. A structure for preventing oil leakage of a main shaft of a piston compressor according to claim 3, characterized in that a sealing ring (6) is provided between the seat (401) and the bottom of the first mounting groove (101);
and the sealing ring (6) is made of polytetrafluoroethylene.
5. A structure for preventing oil leakage of a main shaft of a piston compressor according to claim 3, characterized in that the grooving size of the skeleton oil seal groove is matched with the skeleton oil seal (5);
the outer diameter of the framework oil seal (5) is 210mm, the inner diameter of the framework oil seal (5) is 180mm, and the thickness of the framework oil seal (5) is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955393.2U CN220248301U (en) | 2023-07-24 | 2023-07-24 | Structure for preventing oil leakage of main shaft of piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955393.2U CN220248301U (en) | 2023-07-24 | 2023-07-24 | Structure for preventing oil leakage of main shaft of piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248301U true CN220248301U (en) | 2023-12-26 |
Family
ID=89230790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321955393.2U Active CN220248301U (en) | 2023-07-24 | 2023-07-24 | Structure for preventing oil leakage of main shaft of piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248301U (en) |
-
2023
- 2023-07-24 CN CN202321955393.2U patent/CN220248301U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |