CN219015614U

CN219015614U - Stress application nozzle pre-debugging tool

Info

Publication number: CN219015614U
Application number: CN202222562215.5U
Authority: CN
Inventors: 杨婷; 王继忠; 唐乾俊
Original assignee: Establishment Of Aviation Shanghai Co ltd
Current assignee: Establishment Of Aviation Shanghai Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-12
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a pre-debugging tool for a stress application nozzle, which comprises the following steps: the mounting table is provided with an embedded groove on the top surface and a test groove on the bottom surface; the bottom end of the nozzle model block is embedded into the caulking groove and is welded with the mounting table, and a simulation cavity, a screw hole, a simulation spray hole and a through hole are arranged in the nozzle model block; the spiral-flow core model block is in threaded connection with the screw hole, a simulation cylinder body is arranged at the bottom of the spiral-flow core model block, and a simulation nozzle is arranged on the outer wall of the simulation cylinder body; and the switching component is welded and connected with the through hole and is used for connecting the flow tester. The pre-testing tool disclosed by the utility model is simple in structure, convenient to install and detach, convenient to debug and capable of ensuring the processing quality of parts.

Description

Stress application nozzle pre-debugging tool

Technical Field

The utility model relates to the technical field of part machining, in particular to a pre-debugging tool for a stress application nozzle.

Background

The boost spray boom is an important part of an aeroengine, a boost nozzle is arranged at the end part of the boost spray boom, a cavity is arranged in the boost nozzle, a swirl core is inserted into the cavity from the top, a nozzle is arranged on the outer wall of the swirl core in the cavity, the swirl core is fixed with the boost nozzle through welding connection, and a spray hole communicated with the cavity is positioned at the bottom end of the boost nozzle. The fuel oil enters the cavity and then enters the swirl core through the nozzle, and then is sprayed out from the spray hole after passing through the bottom end of the swirl core. After the stressing spray rod is processed, the flow and spray cone angle of the spray hole are detected and debugged. The welded swirl core cannot be disassembled to carry out spout grinding in the debugging process. The pre-debugging tool is designed for guiding the machining size of the swirl core nozzle.

Disclosure of Invention

In view of the above-mentioned drawbacks or shortcomings in the prior art, it is desirable to provide a stress application nozzle pre-debugging tool which has a simple structure, is convenient to install and disassemble, is convenient to debug, and can ensure the processing quality of parts.

The utility model provides a pre-debugging tool for a stress application nozzle, which comprises the following components:

the mounting table is provided with an embedded groove on the top surface and a test groove on the bottom surface, the inner diameter of the test groove is gradually increased from top to bottom to form a truncated cone shape, and the top end of the test groove is communicated with the embedded groove;

the bottom end of the nozzle model block is embedded into the caulking groove and is in welded connection with the mounting table, a simulation cavity is arranged in the nozzle model block, the top end of the nozzle model block is arranged in a screw hole communicated with the simulation cavity, a simulation spray hole communicated with the simulation cavity is arranged at the bottom end of the nozzle model block, and a through hole communicated with the simulation cavity is arranged at one side of the nozzle model block;

the swirl core model block is in threaded connection with the screw hole, a simulation cylinder body is arranged at the bottom of the swirl core model block, and a simulation nozzle is arranged on the outer wall of the simulation cylinder body;

and the switching component is welded and connected with the through hole and is used for connecting a flow tester.

Further, the switching assembly comprises a connecting pipe in welded connection with the through hole, and a tester joint is arranged at one end of the connecting pipe away from the nozzle model block.

Further, a sealing gasket is arranged between the rotational flow core model block and the nozzle model block in the screw hole.

Furthermore, the mounting table, the nozzle model block, the rotational flow core model block and the switching component are all made of stainless steel materials.

Compared with the prior art, the utility model has the beneficial effects that:

the pre-debugging tool comprises an installation table, a nozzle model block, a rotational flow core model block and a switching assembly. The internal structure of the nozzle model block is the same as that of the stressing nozzle, and the rotational flow core model block and the nozzle model block are designed to be in threaded connection. The switching assembly is connected to the flow tester through a hose, and the mounting table is placed on the spray cone angle detection equipment. And when the detected flow and spray cone angle do not meet the requirements, the rotational flow core model block is dismounted, the simulation nozzle is ground, and then the rotational flow core model block is reloaded to continue the test until the flow and spray cone angle meet the requirements. And processing the swirl core nozzle by taking the size of the simulated nozzle as a guiding parameter. The pre-adjustment fixture is simple in structure, convenient to install and detach, convenient to debug and capable of ensuring the machining quality of parts.

It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural view of a stress application nozzle pre-debugging tool;

FIG. 2 is a schematic cross-sectional view of a pre-debugging tool for a stress application nozzle;

FIG. 3 is a schematic view of the structure of the mounting table;

FIG. 4 is a schematic view of the structure of a nozzle model block;

fig. 5 is a schematic structural view of the cyclone core module.

Reference numerals in the drawings: 1. a mounting table; 2. a nozzle model block; 3. swirl core model blocks; 4. a switching component; 5. a sealing gasket;

11. a caulking groove; 12. a test slot;

21. simulating a cavity; 22. a screw hole; 23. simulating a spray hole; 24. a through hole;

31. simulating a cylinder; 32. simulating a nozzle;

41. a connecting pipe; 42. a tester joint.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 5, an embodiment of the present utility model provides a pre-debugging tool for a stress application nozzle, including:

the mounting table 1 is provided with an embedded groove 11 on the top surface and a test groove 12 on the bottom surface, wherein the inner diameter of the test groove 12 is gradually increased from top to bottom to form a truncated cone shape, and the top end of the test groove 12 is communicated with the embedded groove 11;

the bottom end of the nozzle model block 2 is embedded into the caulking groove 11 and is in welded connection with the mounting table 1, a simulation cavity 21 is arranged in the nozzle model block 2, the top end of the nozzle model block 2 is arranged in a screw hole 22 communicated with the simulation cavity 21, a simulation spray hole 23 communicated with the simulation cavity 21 is arranged at the bottom end, and a through hole 24 communicated with the simulation cavity 21 is arranged at one side of the nozzle model block;

the rotational flow core model block 3 is in threaded connection with the screw hole 22, a simulation cylinder 31 is arranged at the bottom of the rotational flow core model block 3, and a simulation nozzle 32 is arranged on the outer wall of the simulation cylinder 31;

and the switching component 4 is welded with the through hole 24 and is used for connecting a flow tester.

In the present embodiment, the internal structure of the nozzle model block 2 is the same as that of the forcing nozzle, and the structural distribution of the simulated nozzle holes 23 of the swirl core model block 3 is the same as that of the swirl core. When debugging is performed, the mounting table 1 is placed on the spray cone angle detection device, and the switching assembly 4 is connected to the flow tester through a hose. The flow tester injects fuel into the simulation cavity 21 at a design pressure, the fuel enters the simulation cylinder 31 through the simulation nozzle 32, and then is ejected from the simulation nozzle 23 through the bottom end of the simulation cylinder 31. The flow rate of the simulated nozzle 23 is detected by a flow rate tester, and the spray cone angle of the simulated nozzle 23 is detected by a spray cone angle detection device. When the detected data does not meet the design requirements, the swirl core block 3 is removed and the simulation nozzle 32 is polished. After finishing grinding, the rotational flow core model block 3 is reloaded back again, and the test is continued until the flow and the spray cone angle meet the requirements.

At this time, the swirl core nozzle is processed using the size of the simulated nozzle 32 as a guide parameter. The pre-adjustment fixture is simple in structure, convenient to install and detach, convenient to debug and capable of ensuring the machining quality of parts.

In a preferred embodiment, as shown in fig. 1 and 2, the adapter assembly 4 comprises a connecting tube 41 welded to the through hole 24, and the end of the connecting tube 41 remote from the nozzle model block 2 is provided with a tester joint 42. Communication between the analogue cavity 21 and the flow tester is achieved.

In a preferred embodiment, as shown in fig. 2, a sealing gasket 5 is provided between the swirl core block 3 and the nozzle block 2 within the screw hole 22. The tightness of the swirl core model block 3 and the nozzle model block 2 after being connected by screw threads is ensured.

In a preferred embodiment, the mounting table 1, the nozzle model block 2, the rotational flow core model block 3 and the switching component 4 are all made of stainless steel materials, so that the structure is high in strength, not easy to deform, corrosion-resistant and long in service life.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a afterburning nozzle pre-debugging frock which characterized in that includes:

2. The stress application nozzle pre-debugging tool according to claim 1, wherein the switching assembly comprises a connecting pipe welded with the through hole, and a tester joint is arranged at one end of the connecting pipe away from the nozzle model block.

3. The stress application nozzle pre-debugging tool according to claim 1, wherein a sealing gasket is arranged between the rotational flow core model block and the nozzle model block in the screw hole.

4. The stress application nozzle pre-debugging tool according to claim 1, wherein the mounting table, the nozzle model block, the rotational flow core model block and the switching assembly are all made of stainless steel materials.