CN218153575U - Oil pipe assembly of lubricating oil pump of gas turbine - Google Patents
Oil pipe assembly of lubricating oil pump of gas turbine Download PDFInfo
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- CN218153575U CN218153575U CN202222641855.5U CN202222641855U CN218153575U CN 218153575 U CN218153575 U CN 218153575U CN 202222641855 U CN202222641855 U CN 202222641855U CN 218153575 U CN218153575 U CN 218153575U
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- flaring
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- oil pipe
- metal hose
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Abstract
The utility model relates to an oil pipe assembly of a lubricating oil pump of a gas turbine, which comprises an oil pipe structure and a long joint, wherein the oil pipe structure comprises a metal hose and two flaring joints; conical surface joints are welded at two ends of the metal hose, and the two flaring joints are respectively in threaded connection with the two conical surface joints; the other ends of the two flaring joints are respectively in threaded connection with the long joint, the flaring joints are of hollow structures, and passages are formed inside the flaring joints, the metal hose and the long joint; the problem of stress concentration point cracking caused by resonance during the operation of the lubricating oil pump can be reduced.
Description
Technical Field
The utility model relates to a combustion engine lubricating oil pump oil pipe assembly belongs to lubricating oil pipe technical field.
Background
The existing lubricating oil return pipe of the combustion engine is formed by bending a steel pipe for multiple times and bypassing other parts of a pump body, but both sides of the steel pipe are rigidly connected with the inlet and the outlet of the oil return pump, and the joint of the steel pipe and the oil return pump is a stress concentration point due to resonance during the operation of the lubricating oil pump, so that cracking is easily caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that prior art exists, the utility model provides a gas-turbine lubricating oil pump oil pipe assembly has alleviateed the wearing and tearing of gas-turbine bearing and annex gear box, has avoided the interior possibility of damaging of the unit operation in-process lubricating oil pump body and gas-turbine box.
The technical scheme of the utility model as follows:
an oil pipe assembly of a lubricating oil pump of a gas turbine comprises an oil pipe structure and a long joint, wherein the oil pipe structure comprises a metal hose and two flaring joints; conical surface joints are welded at two ends of the metal hose, and the two flaring joints are respectively in threaded connection with the two conical surface joints; the other ends of the two flaring joints are respectively in threaded connection with the long joint, the flaring joints are of hollow structures, and passages are formed inside the flaring joints, the metal hose and the long joint.
The middle section of the flaring joint is provided with a nut, external threads are symmetrically arranged at two ends of the flaring joint, a sealing interface is arranged at the end part of one side of the long joint, which is connected with the flaring joint, and the outer diameter of the sealing interface is tightly attached to the inner diameter of the flaring joint; the long joint is connected with a movable nut in a sliding way; the long joint is in threaded connection with the flaring joint through a movable nut.
And an external thread with the same size as the flaring joint is arranged at one end of the sealing interface, which is far away from the flaring joint.
The outer surface of the metal hose is fixedly provided with a heat-insulating layer by arranging a fixed hoop; the fixed staple bolt is provided with three.
Wherein, the metal hose is composed of a stainless steel braided layer and an annular corrugated spring inner tube.
The long joints are connected with two ends of the metal hose, wherein the long joint at one end is L-shaped, and the long joint at the other end is Z-shaped.
The utility model discloses following beneficial effect has:
the utilization efficiency of lubricating oil is improved, the abrasion of a gas turbine bearing and an accessory gear box is reduced, the possibility of damage to a lubricating oil pump body and the interior of a gas turbine box in the running process of the unit is avoided, and the safe and stable running of the gas turbine unit is further ensured.
Through the design of the sealing interface and the flaring joint, the pump body can be guaranteed to provide better sealing performance when vibrating, and meanwhile, the displacement of pipeline connection during vibration can be reduced to a certain extent.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the oil pipe of the present invention;
fig. 3 is a schematic view of the flaring joint structure of the present invention;
fig. 4 is a schematic view of the connection between the sealing interface and the flaring joint of the present invention.
The reference numbers in the figures denote:
1. a long joint; 2. a metal hose; 3. flaring joints; 11. sealing the interface; 12. a movable nut; 21. a conical surface joint; 22. fixing the anchor ear; 23. and (7) an insulating layer.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the utility model provides a technical solution:
an oil pipe assembly of a lubricating oil pump of a combustion engine comprises an oil pipe structure and a long joint 1, wherein the oil pipe structure comprises a metal hose 2 and two flaring joints 3; two conical surface joints 21 are welded at two ends of the metal hose 2, and two flaring joints 3 are arranged and are respectively in threaded connection with the conical surface joints 21; the other ends of the two flaring joints 3 are respectively in threaded connection with the long joint 1, the flaring joints 3 are of hollow structures, and passages are formed inside the flaring joints 3, the metal hose 2 and the long joint 1.
Furthermore, a nut is arranged at the middle section of the flaring joint 3, external threads are symmetrically arranged at two ends of the flaring joint 3, and one end of the flaring joint 3 is a conical surface; the end part of one side of the long joint 1, which is connected with the flaring joint 3, is provided with a sealing interface 11, and the outer diameter of the sealing interface 11 is tightly attached to the inner diameter of the flaring joint 3; a movable nut 12 is connected on the long joint 1 in a sliding way; the long joint 1 is in threaded connection with the flaring joint 3 through a movable nut 12; specifically, one side of the conical surface of the flaring joint 3 is in threaded connection with the conical surface joint 21 of the metal hose 2, so that the sealing performance can be enhanced, and the flaring joint is not easy to damage due to the vibration of the pump body.
Further, an external thread with the same size as the flaring joint 3 is arranged at one end, away from the flaring joint 3, of the sealing interface 11; the movable nut 12 is connected on the long joint 1 in a sliding manner, and the movable nut 12 can be prevented from sliding off in the non-installation process through the external thread arranged on the sealing interface 11.
Further, the outer surface of the metal hose 2 is fixedly provided with a heat-insulating layer 23 by arranging a fixed hoop 22; three fixing hoops 22 are arranged; specifically, fixed staple bolt 22 sets up threely at least to guarantee the firm of heat preservation 23, heat preservation 23 makes oil pipe stabilize in suitable temperature range, has improved the utilization efficiency of lubricating oil, and has mentioned grease proofing damp-proof operation.
Furthermore, the metal hose 2 consists of a stainless steel braided layer and an annular corrugated spring inner tube; ensuring that the metal hose 2 has a corresponding elasticity.
Furthermore, the long joints 1 are connected with two ends of the metal hose 2, wherein the long joint 1 at one end is arranged to be L-shaped, and the long joint 1 at the other end is arranged to be Z-shaped; specifically, the long joint 1 may be changed according to the structure of the pump body.
Working principle embodiment:
firstly, attaching the heat-insulating layer 23 to the metal hose 2, and then tightly attaching the heat-insulating layer 23 and the metal hose by using the fixing hoop 22; secondly, the conical surface joint 21 welded by the metal hose 2 is connected with the flaring joint 3, and then the top of the sealing interface 11 is inserted into the flaring joint 3 to prevent oil leakage; and then the movable nut 12 on the long joint 1 is slid to the external thread of the outer wall of the flared joint 3 and is in threaded connection with the external thread, and the installation is finished.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. An oil pipe assembly of a lubricating oil pump of a combustion engine is characterized in that: the oil pipe structure comprises an oil pipe structure and a long joint (1), wherein the oil pipe structure comprises a metal hose (2) and two flaring joints (3); conical surface joints (21) are welded at two ends of the metal hose (2), and the two flaring joints (3) are respectively in threaded connection with the two conical surface joints (21); the other ends of the flaring joints (3) are respectively in threaded connection with the long joint (1), the flaring joints (3) are of hollow structures, and passages are formed inside the flaring joints (3), the metal hose (2) and the long joint (1).
2. A lubricating oil pump oil pipe assembly for a combustion engine as claimed in claim 1, wherein: the middle section of the flaring joint (3) is provided with a nut, external threads are symmetrically arranged at two ends of the flaring joint (3), one end face of the flaring joint (3) is a conical surface, a sealing interface (11) is arranged at the end part of one side, connected with the flaring joint (3), of the long joint (1), and the outer diameter of the sealing interface (11) is tightly attached to the inner diameter of the flaring joint (3); the long joint (1) is connected with a movable nut (12) in a sliding way; the long joint (1) is in threaded connection with the flaring joint (3) through a movable nut (12).
3. A lubricating oil pump oil pipe assembly for a combustion engine as claimed in claim 2, wherein: and one end of the sealing interface (11) far away from the flaring joint (3) is provided with an external thread with the same size as the flaring joint (3).
4. A lubricating oil pump oil pipe assembly for a combustion engine as claimed in claim 1, wherein: the outer surface of the metal hose (2) is fixedly provided with an insulating layer (23) by arranging a fixed hoop (22); the number of the fixed hoops (22) is three.
5. A lubricating oil pump oil pipe assembly for a combustion engine as claimed in claim 1, wherein: the metal hose (2) is composed of a stainless steel braided layer and an annular corrugated spring inner pipe.
6. A lubricating oil pump oil pipe assembly for a combustion engine as claimed in claim 1, wherein: and the long joints (1) are connected with two ends of the metal hose (2), wherein the long joint (1) at one end is L-shaped, and the long joint (1) at the other end is Z-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222641855.5U CN218153575U (en) | 2022-10-09 | 2022-10-09 | Oil pipe assembly of lubricating oil pump of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222641855.5U CN218153575U (en) | 2022-10-09 | 2022-10-09 | Oil pipe assembly of lubricating oil pump of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218153575U true CN218153575U (en) | 2022-12-27 |
Family
ID=84566399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222641855.5U Active CN218153575U (en) | 2022-10-09 | 2022-10-09 | Oil pipe assembly of lubricating oil pump of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218153575U (en) |
-
2022
- 2022-10-09 CN CN202222641855.5U patent/CN218153575U/en active Active
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