CN212943640U - Adjustable lubricating oil nozzle and aircraft engine gear box - Google Patents
Adjustable lubricating oil nozzle and aircraft engine gear box Download PDFInfo
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- CN212943640U CN212943640U CN202021557088.4U CN202021557088U CN212943640U CN 212943640 U CN212943640 U CN 212943640U CN 202021557088 U CN202021557088 U CN 202021557088U CN 212943640 U CN212943640 U CN 212943640U
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Abstract
An adjustable lubricating oil nozzle comprises a nozzle body and a plurality of nozzle heads, wherein the nozzle body comprises an oil outlet part, and the oil outlet part comprises a body side wall and an oil outlet channel enclosed by the body side wall; the nozzle head is a cylinder structure with one closed end and comprises a cylinder side wall and a spray hole arranged on the cylinder side wall. Any one of the nozzle heads can be in sealed connection with the side wall of the body through the side wall of the cylinder body of the nozzle head and covers the oil outlet channel, so that the oil outlet channel is communicated with the spray holes, and after the nozzle heads are in sealed connection with the nozzle body, the spray holes of the nozzle heads have different spray heights, different spray angles and/or different spray hole sizes, so that the spray requirements under different oil injection lubrication conditions in practical application are met. An aircraft engine gearbox includes this adjustable oil nozzle.
Description
Technical Field
The utility model relates to an aeroengine gear box field, concretely relates to inside lubricating oil nozzle of gear box.
Background
In the design and processing process of an aircraft engine gearbox, the structure of a lubricating oil pipe is complex, the processing roughness of the pipeline is difficult to control, so that the flow resistance is difficult to control, the local flow resistance is overlarge, the pressure at the position of a nozzle is difficult to control, and the flow of the lubricating oil nozzle is influenced. In addition, the flow path simulation has a large difference with the real flow resistance, and the accuracy of the simulation result is not high. For the above two reasons, the actual injection amount of the lubricant is not in accordance with the design. In addition, the error accumulation may cause the actual nozzle spray angle and position to be inconsistent with the design. When the jet flow and the jet position angle of the nozzle are not in accordance with the design, the adjustment is usually performed by enlarging the nozzle hole or adding an adjusting pad. However, both of the two adjusting methods have limitations, namely, the reaming can only increase the flow of the nozzle and cannot solve the problem of overlarge flow of the nozzle, and the adjusting pad can only heighten the injection position and cannot solve the problem of overhigh injection position.
SUMMERY OF THE UTILITY MODEL
One of the objects of the utility model is to provide an adjustable lubricating oil nozzle to solve the problem that the actual injection parameter is unsatisfied to spray the requirement.
The adjustable lubricating oil nozzle comprises a nozzle body and a plurality of nozzle heads;
the nozzle body comprises an oil outlet part, and the oil outlet part comprises a body side wall and an oil outlet channel enclosed by the body side wall;
the nozzle head is of a cylinder structure with one closed end and comprises a cylinder side wall and a nozzle hole arranged on the cylinder side wall;
any one selected from the nozzle heads can be in sealing connection with the side wall of the body through the side wall of the cylinder body and cover the oil outlet channel, so that the oil outlet channel is communicated with the spray hole; after the plurality of nozzle heads are respectively connected with the nozzle body in the sealing mode, the jet holes of the plurality of nozzle heads have different jet heights, different jet angles and/or different jet hole sizes.
One of the barrel side wall and the body side wall has an internal thread and the other has an external thread to allow the nozzle head and the nozzle body to be threadedly connected.
The one side of the adjustable oil nozzle having the internal thread has an internal shoulder, and the other side of the adjustable oil nozzle having the external thread has a first butt end surface, and after the threaded connection is formed, the internal shoulder and the first butt end surface are opposed to each other and clamp a seal ring to form a seal.
The one side having the internal thread has a second butt end face, and the other side having the external thread has an outer shoulder, and after the threaded connection is formed, the outer shoulder opposes the second butt end face and clamps another seal ring to form a seal.
The nozzle body comprises a rod portion and a base, one end of the rod portion is connected with the base, the other end of the rod portion is provided with the oil outlet portion, the base is provided with a lubricating oil connecting port, and the lubricating oil connecting port and the rod portion can be communicated with a lubricating oil conveying ground.
Another object of the utility model is to provide an aeroengine gear box, including above-mentioned adjustable lubricating oil nozzle.
The adjustable lubricating oil nozzle is used for decomposing the nozzle structure into the nozzle body and the nozzle heads, selecting any one from the nozzle heads to be in sealing connection with the nozzle body, and providing the nozzle holes with different spraying heights, different spraying angles and/or different nozzle hole sizes, so that the problem that the spraying flow and height angle of a common nozzle cannot meet the requirements of practical application is effectively solved, and the adjustable lubricating oil nozzle has universality in application scenes with various spraying requirements; the problem of redesigning and manufacturing the processing nozzle due to poor lubricating oil spraying effect is avoided, and the effects of shortening the project period and reducing the project cost can be achieved.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of an adjustable oil jet overall.
Fig. 2 is a schematic view of a nozzle body.
Fig. 3 is a schematic view of multiple sets of nozzle heads.
Fig. 4 is an assembly schematic view of the jettable body and nozzle tip screw thread direct-on installation.
Fig. 5 is an enlarged view of the structure at the threaded connection of the nozzle head and the nozzle body.
Detailed Description
The present invention will be further described with reference to the following embodiments and drawings, and more details will be set forth in the following description in order to provide a thorough understanding of the present invention, but it is obvious that the present invention can be implemented in various other ways different from those described herein, and those skilled in the art can make similar generalizations and deductions according to the actual application without departing from the spirit of the present invention, and therefore, the scope of the present invention should not be limited by the contents of the embodiments.
As shown in fig. 1 to 3, an adjustable oil nozzle includes a nozzle body 1 and a plurality of nozzle heads 2. The nozzle body 1 comprises an oil outlet part 11, wherein the oil outlet part 11 comprises a body side wall 14 and an oil outlet channel 13 enclosed by the body side wall 14; the nozzle head 2 is a cylinder structure with one end closed, and comprises a cylinder side wall 21 and a spray hole 22 arranged on the cylinder side wall 21. Fig. 3 shows a plurality of nozzle heads 2A to 2F selectively connected with the oil outlet 11 in a sealing manner, the nozzle holes 22 of the nozzle heads 2A to 2F have different diameters, and the nozzle heads respectively form the sealing connection with the nozzle body 1, and have different injection heights and different injection angles, so that different injection effects can be formed to adapt to different injection requirements. The injection height and the injection angle of the injection hole can be understood by referring to fig. 1, 3, and 4, the injection height is related to the position of the injection hole on the axis of the nozzle, and the injection angle is related to the position of the injection hole in the circumferential direction of the nozzle.
Any one selected from the nozzle heads 2 shown in fig. 3 can be connected to the body side wall 14 of the nozzle body 1 via the cylinder side wall 21 in a sealing manner to cover the oil outlet passage 13, so that the oil outlet passage 13 communicates with the nozzle holes 22 of the nozzle head 2. The nozzle heads 2 can be respectively connected with the nozzle body 1 in a sealing manner, the sealing connection can be formed by directly screwing the nozzle heads 2 and the nozzle body 1 in a threaded manner, can also be formed by screwing a connecting threaded sleeve, can also be formed by various manners such as flanges, pressing plates or bolts, buckling connection, screwing connection and the like, the sealing formation can be formed by jointing or meshing sealing surfaces between the nozzle heads 2 and the nozzle body 1, or sealing media are interposed between the matching surfaces between the nozzle heads and the nozzle body, the sealing media can be sealing rings or packing seals or other sealing materials, and the sealing connection of the nozzle heads 2 and the nozzle body 1 can be realized only by fastening, sealing and easy replacement.
After the nozzle heads 2 are respectively connected with the nozzle body 1 in a sealing mode, the spray holes 22 of the nozzle heads 2 have different spray heights and different spray angles, and the requirements of different spray heights and different spray angles under various oil spray occasions can be met. At the same time, different flow rates can be injected during the injection process, since the injection holes 22 of the nozzle head 2 have different sizes. Therefore, the adjustable lubricating oil nozzle can solve the problems of inaccurate nozzle injection flow and angle caused by nozzle manufacturing error, error accumulation, inaccurate simulation and the like, so that the oil injection nozzle is suitable for various oil injection lubrication scenes, and the original nozzle does not need to be machined or improved again, thereby shortening the project period and reducing the project cost.
When the nozzle head 2 and the nozzle body 1 are directly screwed in and installed by threads, one of the side wall 21 of the cylinder body and the side wall 14 of the body is provided with internal threads, and the other is provided with external threads, so that the nozzle head 2 and the nozzle body 1 are allowed to be connected in a threaded manner, the tightness between the nozzle head 2 and the nozzle body 1 is ensured by the direct screwing in connection of the threads, meanwhile, the replacement of the nozzle head 2 is also easily realized, and the replacement process is simple and convenient.
In the embodiment in which the seal is achieved by the seal ring, in the nozzle head 2 and the nozzle body 1 to be screwed together, one side having the female screw has an inner shoulder, and the other side having the male screw has a first butt end surface, and after the screw connection is made, the inner shoulder faces the first butt end surface and clamps the seal ring to form a seal, and clamps the seal ring by a tightening force applied by the screw connection by clamping the seal ring by both flat surfaces, whereby an effective seal can be made. Another sealing implementation that can be replaced or added to the aforementioned sealing implementation is that the one side with the internal thread has a second butt end face and the other side with the external thread has an external shoulder, and after the threaded connection is made, the external shoulder opposes the second butt end face and clamps another sealing ring to form a seal. The sealing performance between the nozzle head 2 and the nozzle body 1 can be enhanced through the action of the two sealing rings at the inner and outer shaft shoulders, and the adjustable lubricating oil nozzle is favorable for being used in a high-pressure oil injection environment.
Fig. 4 shows an assembly of the adjustable oil nozzle with a direct screw-in mounting, in which the side wall 14 of the body is provided with an external thread and the side wall 21 of the barrel of the nozzle head 2 is provided with an internal thread, and the replacement of the nozzle head 2 is carried out by simply unscrewing the old nozzle head from the side wall 14 of the body and mounting and screwing the new nozzle head. In another embodiment, a fitting method in which the internal thread of the body side wall 14 and the external thread of the barrel side wall 21 of the nozzle head 2 are engaged with each other may be adopted.
When the body side wall 14 having the external thread and the cylinder side wall 21 having the internal thread are screw-coupled, as shown in fig. 5, the cylinder side wall 21 having the internal thread has an inner shoulder, and the body side wall 14 having the external thread has a first butt end surface 51, and after the screw coupling is formed, the inner shoulder is opposed to the first butt end surface 51 and clamps the first seal ring 41 to form a seal. The internally threaded barrel side wall 21 has a second butt end face 52 and the externally threaded body side wall 14 has an external shoulder which, after threaded engagement, opposes the second butt end face 52 and clamps the second seal ring 42 to form a seal. The first sealing ring 41 and the second sealing ring 42 above and below the thread structure can effectively enhance the sealing performance between the nozzle head 2 and the nozzle body 1, and prevent the situation of oil leakage at the connection part between the nozzle head 2 and the nozzle body 1 in a high-pressure spraying environment.
In the actual use process, because the sizes and the angles of the spray holes of the nozzle heads 2 are different, the nozzle head 2 which is most suitable for the nozzle body 1 can be correspondingly installed according to the actual application scene, so that different lubricating oil spraying requirements, such as spraying flow rate, spraying angle and the like, can be met.
In order to facilitate the installation of the adjustable oil nozzle, the nozzle body 1 comprises a rod part 15 and a base 16, as shown in fig. 2, one end of the rod part 15 is connected with the base 16, the other end of the rod part 15 is provided with an oil outlet part 11, the base 16 is provided with an oil connecting port 17, and the oil connecting port 17 is communicated with the rod part 15 in a manner of conveying oil. The adjustable oil nozzle can be fixed to the installation surface by the base 16 and can be quickly connected to the oil supply system.
The aircraft engine gear box with the adjustable lubricating oil nozzle can meet the requirement of injection parameters under various working conditions by replacing the nozzle head 2, and the effective lubrication inside the gear box is realized.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.
Claims (6)
1. The adjustable lubricating oil nozzle comprises a nozzle body and is characterized by further comprising a plurality of nozzle heads;
the nozzle body comprises an oil outlet part, and the oil outlet part comprises a body side wall and an oil outlet channel enclosed by the body side wall;
the nozzle head is of a cylinder structure with one closed end and comprises a cylinder side wall and a nozzle hole arranged on the cylinder side wall;
any one selected from the nozzle heads can be in sealing connection with the side wall of the body through the side wall of the cylinder body and cover the oil outlet channel, so that the oil outlet channel is communicated with the spray hole; after the plurality of nozzle heads are respectively connected with the nozzle body in the sealing mode, the jet holes of the plurality of nozzle heads have different jet heights, different jet angles and/or different jet hole sizes.
2. The adjustable lubricant nozzle of claim 1, wherein one of said barrel sidewall and said body sidewall is internally threaded and the other is externally threaded to permit threaded connection of said nozzle tip and said nozzle body.
3. The adjustable oil nozzle of claim 2, wherein said one of said internal threads has an internal shoulder and said other of said external threads has a first counterface, and wherein said internal shoulder opposes said first counterface to clamp a seal ring to form a seal after said threaded connection is made.
4. An adjustable oil nozzle as claimed in claim 2 or 3, wherein said one of said pair of said female threads has a second butt end face and said other of said pair of said male threads has an outer shoulder, said outer shoulders being arranged to oppose said second butt end face and to clamp a further seal ring to form a seal after said threaded connection is made.
5. The adjustable oil nozzle of claim 1, wherein the nozzle body includes a rod portion and a base, one end of the rod portion is connected to the base, the other end of the rod portion is provided with the oil outlet portion, the base is provided with an oil connection port, and the oil connection port and the rod portion are in oil-conveying communication.
6. An aircraft engine gearbox comprising a lubricant nozzle, wherein the lubricant nozzle comprises an adjustable lubricant nozzle according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557088.4U CN212943640U (en) | 2020-07-31 | 2020-07-31 | Adjustable lubricating oil nozzle and aircraft engine gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557088.4U CN212943640U (en) | 2020-07-31 | 2020-07-31 | Adjustable lubricating oil nozzle and aircraft engine gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212943640U true CN212943640U (en) | 2021-04-13 |
Family
ID=75344893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021557088.4U Active CN212943640U (en) | 2020-07-31 | 2020-07-31 | Adjustable lubricating oil nozzle and aircraft engine gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212943640U (en) |
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2020
- 2020-07-31 CN CN202021557088.4U patent/CN212943640U/en active Active
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