CN217304259U

CN217304259U - Clamping tool for nozzle shell sealing test

Info

Publication number: CN217304259U
Application number: CN202220368711.4U
Authority: CN
Inventors: 杨海诚; 唐乾俊; 邹红珍
Original assignee: Establishment of Aviation Co Ltd
Current assignee: Establishment of Aviation Co Ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-08-26
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a clamping tool for a nozzle shell sealing test, which comprises a tool main body; a circle of lower mounting ring is fixedly arranged at the bottom end of the side wall of the tool main body, and a circle of upper mounting ring is fixedly arranged at the top end of the side wall of the tool main body; a plurality of mounting through holes are uniformly distributed on the lower mounting ring along the circumferential direction, a communicating groove is formed between every two adjacent mounting through holes, and a plugging component is fixedly arranged on the bottom surface of the lower mounting ring, so that the mounting through holes and the communicating grooves form an annular air path; the top ends of the mounting through holes are fixedly connected with air inlet columns; one side of the lower mounting ring is provided with an air inlet pipe communicated with the air passage; the upper mounting ring is provided with a threaded hole; the threaded holes are all penetrated by plugging columns in threaded connection with the threaded holes. The utility model discloses a clamping frock simple structure, it is convenient to install, can once carry out the detection of a plurality of nozzle shell, has improved production efficiency.

Description

Clamping tool for nozzle shell sealing test

Technical Field

The utility model relates to a nozzle housing seals experimental technical field, especially relates to a nozzle housing seals experimental clamping frock.

Background

The nozzle shell is one of important constructions of an aircraft engine, and a sealing performance test needs to be carried out on the nozzle shell after the nozzle shell is machined. As shown in fig. 1, a nozzle housing of an engine has a complicated structure and two oil passages, i.e., a main oil passage and an auxiliary oil passage, are provided therein. When the sealing performance test is carried out on the oil way, the position of the nozzle is blocked by adopting the sealing nut, and then the sealing performance of the two oil ways is detected one by one. The nozzle shell is detected one by one, so that the detection efficiency is extremely low, and the production efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect or not enough among the prior art, it is desirable to provide a simple structure, and it is convenient to install, can once carry out the detection of a plurality of nozzle shell, improves production efficiency's nozzle shell seal test's clamping frock.

The utility model provides a clamping tool for a nozzle shell sealing test, which comprises a cylindrical tool main body; a circle of lower mounting ring is fixedly arranged at the bottom end of the side wall of the tool main body, and a circle of upper mounting ring is fixedly arranged at the top end of the side wall of the tool main body;

a plurality of mounting through holes are uniformly distributed on the lower mounting ring along the circumferential direction, a communicating groove is formed between every two adjacent mounting through holes on the bottom surface of the lower mounting ring, and a plugging assembly is fixedly arranged on the bottom surface of the lower mounting ring, so that the mounting through holes and the communicating grooves form an annular gas path; the top ends of the mounting through holes are fixedly connected with air inlet columns; one side of the lower mounting ring is provided with an air inlet pipe communicated with the air passage;

the upper mounting ring is provided with threaded holes which correspond to the mounting through holes one to one; the threaded holes are all provided with plugging columns in threaded connection with the threaded holes.

Furthermore, the air inlet column comprises a first column body, a plug connector is fixedly arranged at the top end of the first column body, a first sealing ring is arranged on the plug connector, and an air guide channel penetrating through the first column body and the plug connector is axially arranged in the air inlet column.

Further, the shutoff post includes the second cylinder, the fixed adapter sleeve that has cup jointed on the second cylinder, be provided with the external screw thread on the outer wall of adapter sleeve, the bottom mounting of second cylinder is provided with the shutoff head, be provided with the second sealing washer on the shutoff head, lie in the fixed rotatory handle that is provided with in top of adapter sleeve on the second cylinder.

Furthermore, a groove is formed in the top surface of the tool main body.

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

the utility model discloses a clamping frock is provided with down collar and last collar. An annular air path is arranged in the lower mounting ring, an air inlet pipe is arranged at one side of the lower mounting ring, and a plurality of air inlet columns are uniformly distributed on the lower mounting ring; the upper mounting ring is in threaded connection with plugging columns which are in one-to-one correspondence with the air inlet columns. When the sealing performance of the nozzle shell is detected, a sealing nut is adopted to seal two nozzles at the nozzle end, then an inlet of one oil way of the nozzle shell is arranged between the air inlet column and the plugging column, and the plugging column is screwed up to complete the sealing butt joint of the nozzle shell. And (3) completing the installation of each nozzle shell one by one according to the steps, connecting the air inlet pipe to the tester through a hose, unscrewing the plugging column after completing the sealing performance detection of one oil way, replacing the plugging column with another oil way for resealing and butt joint, and detecting the sealing performance of the other oil way.

The clamping tool is simple in structure, convenient to install, good in clamping sealing performance of the nozzle shell and capable of ensuring detection accuracy. And the sealing performance of a plurality of nozzle shells can be detected at one time, and the production efficiency is greatly improved.

It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIG. 1 is a schematic structural view of a nozzle housing;

FIG. 2 is a schematic structural view of a clamping tool;

FIG. 3 is a schematic structural view of the nozzle housing mounted to the clamping fixture;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is an enlarged view of the structure at A in FIG. 4;

FIG. 6 is a schematic structural view of the tool body;

FIG. 7 is a schematic view of the bottom structure of the tool body;

fig. 8 is a schematic structural view of a plugging column.

Reference numbers in the figures: 1. a tool main body; 2. a lower mounting ring; 3. an upper mounting ring; 4. an air inlet column; 5. an air inlet pipe; 6. plugging the column; 7. a nozzle housing;

11. a profiled groove;

21. mounting a through hole; 22. a communicating groove; 23. a plugging component;

31. a threaded hole;

41. a first column; 42. a plug-in connector; 43. a first seal ring; 44. an air guide channel;

61. a second cylinder; 62. connecting sleeves; 63. an external thread; 64. plugging the head; 65. a second seal ring; 66. a rotation handle;

71. a main oil path; 72. and an auxiliary oil path.

Detailed Description

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

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

Referring to fig. 1 to 8, an embodiment of the present invention provides a clamping tool for a nozzle shell sealing test, including a cylindrical tool main body 1; a circle of lower mounting ring 2 is fixedly arranged at the bottom end of the side wall of the tool main body 1, and a circle of upper mounting ring 3 is fixedly arranged at the top end of the side wall of the tool main body 1;

a plurality of mounting through holes 21 are uniformly distributed on the lower mounting ring 2 along the circumferential direction, a communication groove 22 is formed between every two adjacent mounting through holes 21 on the bottom surface of the lower mounting ring 21, and a plugging component 23 is fixedly arranged on the bottom surface of the lower mounting ring 2, so that the mounting through holes 21 and the communication grooves 22 form an annular air path; the top ends of the mounting through holes 21 are fixedly connected with air inlet columns 4; one side of the lower mounting ring 2 is provided with an air inlet pipe 5 communicated with an air path;

the upper mounting ring 3 is provided with threaded holes 31 which correspond to the mounting through holes 21 one by one; the threaded holes 31 are all penetrated with plugging columns 6 which are in threaded connection with the threaded holes.

In the present embodiment, when the sealing performance of the nozzle housing 7 shown in fig. 1 is detected, the nozzle ends of the main oil passage 71 and the sub oil passage 72 are first sealed by the seal nut. And then the nozzle housings 7 to be detected are mounted one by one on the clamping tool.

When the nozzle shell 7 is installed, the plugging column 6 is rotated firstly, so that the plugging column 6 moves upwards, the distance between the plugging column 6 and the corresponding air inlet column 4 is increased, then one end of one oil path inlet of the nozzle shell 7 is butted to the top end of the air inlet column 4, then the plugging column 6 is rotated, so that the plugging column 6 moves downwards and is butted with the other end of the oil path inlet, and the nozzle shell 7 is clamped between the corresponding air inlet column 4 and the plugging column 6. And (3) completing the installation of each nozzle shell 7 one by one according to the steps, connecting the air inlet pipe 5 to a tester through a hose, and detecting the sealing performance of one oil way of each nozzle shell 7. And after one oil way is detected, unscrewing the plugging column 6, replacing each nozzle shell 7 with another oil way for sealing and butting again, and detecting the sealing performance of the other oil way.

The clamping tool is simple in structure, convenient to install, good in clamping sealing performance of the nozzle shell 7 and capable of ensuring detection accuracy. And the sealing performance of a plurality of nozzle shells 7 can be detected at one time, and the production efficiency is greatly improved.

In a preferred embodiment, as shown in fig. 5, the air inlet column 4 includes a first column 41, a plug 42 is fixedly disposed at a top end of the first column 41 and is used for being plugged and butted with one end of an oil path inlet of the nozzle housing 7, a first sealing ring 43 is disposed on the plug 42, so that the sealing performance of the air inlet column 4 and the nozzle housing 7 after being butted is improved, an air guide channel 44 penetrating through the first column 41 and the plug 42 is axially disposed in the air inlet column 4, so that the oil path of the nozzle housing 7 is communicated with the air path in the lower mounting ring 2, and is communicated to a tester through the air inlet pipe 5, thereby ensuring that the sealing performance detection of the plurality of nozzle housings 7 is performed simultaneously.

In a preferred embodiment, as shown in fig. 8, the plugging column 6 includes a second column 61, a connection sleeve 62 is fixedly sleeved on the second column 61, an external thread 63 is provided on an outer wall of the connection sleeve 62 and is used for being in fit thread connection with the threaded hole 31, a plugging head 64 is fixedly provided at a bottom end of the second column 61 and is used for being in plugging butt joint with the other end of the oil path inlet of the nozzle housing 7, a second sealing ring 65 is provided on the plugging head 64 to ensure the sealing performance of the plugging head 64, a rotation handle 66 is fixedly provided on the second column 61 above the connection sleeve 62 and is used for rotating the second column 61 so as to adjust the position of the plugging column 6, thereby realizing the installation and the disassembly of the nozzle housing 7.

In a preferred embodiment, as shown in fig. 4, the top surface of the tool body 1 is provided with a groove 11, so that the self weight of the clamping tool can be reduced, and the clamping tool can be used for containing parts or tools, thereby facilitating the test operation.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means 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 application. In this specification, the schematic representations of the terms used above 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 above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clamping tool for a nozzle shell sealing test is characterized by comprising a cylindrical tool main body; a circle of lower mounting ring is fixedly arranged at the bottom end of the side wall of the tool main body, and a circle of upper mounting ring is fixedly arranged at the top end of the side wall of the tool main body;

2. The clamping tool for the nozzle shell sealing test according to claim 1, wherein the air inlet column comprises a first column body, a plug connector is fixedly arranged at the top end of the first column body, a first sealing ring is arranged on the plug connector, and an air guide channel penetrating through the first column body and the plug connector is axially arranged in the air inlet column.

3. The clamping tool for the nozzle shell sealing test is characterized in that the blocking column comprises a second column body, a connecting sleeve is fixedly sleeved on the second column body, external threads are arranged on the outer wall of the connecting sleeve, a blocking head is fixedly arranged at the bottom end of the second column body, a second sealing ring is arranged on the blocking head, and a rotating handle is fixedly arranged on the second column body above the connecting sleeve.

4. The clamping tool for the nozzle shell sealing test according to claim 3, wherein a groove is formed in the top surface of the tool body.