CN219015376U

CN219015376U - Experimental device for be used for large-scale ring class part air flow test

Info

Publication number: CN219015376U
Application number: CN202320058752.8U
Authority: CN
Inventors: 莫伟; 王�华; 汪圆; 李明杰; 孙威威; 李正伟; 许耀先
Original assignee: Loulan Technology Jiangsu Co ltd
Current assignee: Loulan Technology Jiangsu Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-12
Anticipated expiration: 2033-01-09

Abstract

The utility model relates to an experimental device for testing air flow of large-sized circular parts, which comprises a fixed bottom plate, wherein the fixed bottom plate is of a circular ring structure, a connecting sheet is connected to the inner wall of the fixed bottom plate of the circular ring structure, the connecting sheet protrudes out of the lower side surface of the fixed bottom plate, a sealing groove is formed in the circumferential direction of the connecting sheet, a first sealing ring is embedded in the sealing groove, a product is connected in an inner ring of the fixed bottom plate, the outer wall of the product is contacted with the first sealing ring, a central hole is formed in the center of the product, holes of different structures are formed in the periphery of the product along the central hole, a central hole blocking cover is connected to the hollow of the product, a central hole groove is formed in the outer periphery of the central hole blocking cover, a second sealing ring is embedded in the central hole groove, and blocking covers matched with different holes are connected to the holes of different structures. The utility model can realize the test with low cost, high efficiency and easy operation.

Description

Experimental device for be used for large-scale ring class part air flow test

Technical Field

The utility model relates to a device for testing air flow of large-sized annular parts, in particular to a test device for testing air flow of an engine flame tube assembly.

Background

The air flow test precondition is that a stable flow field of an inlet and an outlet of a tested workpiece is required to be established, stable pressure difference data of the inlet and the outlet of the workpiece is further obtained, the stable data is fed back to flow equipment, and then stable flow data can be tested.

The patent is searched: CN202221247412.1 (a be used for large-scale drum type part air flow testing arrangement), including PMKD, along the ring structure PMKD's medial edge department has seted up the recess circle, be provided with on the PMKD and simulate flame tube, along be provided with on the peripheral bottom of simulation flame tube and extend the limit, extend the limit and cover on the recess circle, extend and be provided with first sealing washer between limit and the recess circle, the upper end of simulation flame tube is provided with the shutoff apron, be provided with a plurality of through-holes on the shutoff apron, cross-under is equipped with the tensioning bolt in the through-hole, pass the shutoff apron the one end of tensioning bolt links to each other with the tensioning support slat, the tensioning support slat is located PMKD's below, and the length of tensioning support slat is greater than the diameter of the PMKD of ring structure, the tensioning support slat makes tensioning support slat and PMKD looks contact under the tensioning bolt. The utility model can achieve the purpose of reducing the cost.

In the early stage and the prior art, most of testing devices use slender flow channels, a spoiler is additionally arranged to control the air flow stability of an inlet of a tested part, continuous vortex is formed immediately after the spoiler, vortex-like flow can be caused by uneven air flow velocity of different areas of a rectification grating, so that the vortex needs to be eliminated by a sufficiently long air flow channel, the device is slender, the occupied area is large, more air flow vortex exists in the channel, the sampling precision of a static pressure port is easy to interfere, the flow testing repeatability is low, the testing data is inaccurate, and the cost is high.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an experimental device for testing the air flow of large-sized circular ring parts.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an experimental apparatus for large-scale ring class part air flow test, includes PMKD, PMKD is ring type structure, ring type structure be connected with the connection piece on the PMKD inner wall, the connection piece protrusion is in PMKD's downside, follows the sealing groove has been seted up in the circumference of connection piece, inlay first sealing washer in the sealing groove, be connected with the product in the inner circle of PMKD, the outer wall of product contacts with first sealing washer, the mesopore has been seted up along the center department of product, has seted up the trompil of different structures on the periphery of the product of mesopore, be connected with the mesopore blanking cap on the cavity of product, follow the mesopore recess has been seted up on the outside periphery of mesopore blanking cap, be equipped with the second sealing washer on the mesopore recess, be connected with on the trompil of different structures and match the blanking cap with different trompils.

Preferably, the experimental device for testing the air flow of the large ring-shaped part is characterized in that the connecting sheet is connected with the product through bolts and nuts.

Preferably, the experimental device for testing the air flow of the large-sized circular ring part is characterized in that the plugging cover is sleeved with a third sealing ring for sealing the opening.

Preferably, the experimental device for testing the air flow of the large-sized annular part is characterized in that the middle hole blanking cover is connected with the product through bolts and nuts.

Preferably, the experimental device for testing the air flow of the large ring part is characterized in that the connecting sheet and the fixed bottom plate are of an integrated structure.

By means of the scheme, the utility model has at least the following advantages:

according to the utility model, air flow test is realized by means of the fixed bottom plate, the plugging cover plate and the sealing ring, the sealing parts can be fixed by only using eight plugging covers (the plugging covers are assembled into the parts without other fixing modes and can be fixed by themselves) and the inner hexagon bolts, the air tightness is good in practical effect, no air leakage is caused, the final test result is accurate, and the air flow test of the large-sized circular ring parts with low cost, high efficiency and easy operation is realized.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a cross-sectional view of fig. 1.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Examples

As shown in fig. 1 and fig. 2, an experimental device for testing air flow of large-scale circular parts comprises a fixed bottom plate 1, wherein the fixed bottom plate 1 is of a circular structure, a connecting sheet 2 is connected to the inner wall of the fixed bottom plate 1 of the circular structure, the connecting sheet 2 protrudes out of the lower side surface of the fixed bottom plate 1, a sealing groove 3 is formed in the circumferential direction of the connecting sheet 2, a first sealing ring 4 is embedded in the sealing groove 3, a product 5 is connected to the inner ring of the fixed bottom plate 1, the outer wall of the product 5 is contacted with the first sealing ring 4, a central hole is formed in the center of the product 5, holes of different structures are formed in the periphery of the product along the central hole, a central hole blocking cover 6 is connected to the hollow of the product 5, a central hole groove 7 is formed in the outer periphery of the central hole blocking cover 6, a second sealing ring 8 is embedded in the central hole groove 7, and holes of different structures are connected with blocking covers 9 matched with different holes.

The connecting piece 2 is connected with the product through bolts and nuts.

In the utility model, a third sealing ring for sealing the opening is sleeved on the blanking cover 9.

The middle hole blanking cover 6 is connected with the product 5 through bolts and nuts.

The connecting sheet and the fixed bottom plate 1 are of an integrated structure.

The working principle of the utility model is as follows:

1. placing a second sealing ring in a middle hole groove of the middle hole blanking cover;

2. placing a middle hole blanking cover at a middle hole of a part (product) (the part bolt hole is aligned with the middle hole blanking cover bolt hole);

3. the fixed bolts penetrate through the bolt holes on the middle hole blanking cover from inside to outside and are locked by the fixed nuts (7 positions are shared);

4. placing a first sealing ring in a sealing groove of a connecting sheet of the fixed bottom plate;

5. placing a fixed bottom plate with a first sealing ring at the outer circle of the part (the part bolt holes are aligned with the fixed bottom plate bolt holes);

6. the fixed bolts pass through bolt holes on the fixed bottom plate from outside to inside and are locked by fixed nuts (7 positions are shared);

7. installing the blocking covers with different structures in the corresponding holes to ensure that the blocking covers are installed in place;

8. and (5) installing the assembled tooling and the parts on air test equipment to test the air flow.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, the terms "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or the positional relationship that the product of the application is conventionally put in use, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or vertical, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. Experimental device for be used for large-scale ring class part air flow test, its characterized in that: including PMKD (1), PMKD (1) is ring type structure, ring type structure be connected with connection piece (2) on PMKD (1) inner wall, connection piece (2) protrusion in PMKD (1) downside, follow sealing groove (3) have been seted up in the circumference of connection piece (2), inlay first sealing washer (4) in sealing groove (3), be connected with product (5) in PMKD (1)'s the inner circle, the outer wall and the first sealing washer (4) of product (5) contact, the centre department of product (5) has seted up the mesopore, has seted up the trompil of different structures on the periphery of the product of mesopore, be connected with mesopore blanking cap (6) on the cavity of product (5), follow on the outside periphery of mesopore blanking cap (6), be equipped with second sealing washer (8) on mesopore recess (7), be connected with on the trompil of different structures and match blanking cap (9) with different trompils.

2. The experimental device for testing the air flow of large annular parts according to claim 1, wherein the experimental device comprises: the connecting piece (2) is connected with the product through bolts and nuts.

3. The experimental device for testing the air flow of large annular parts according to claim 1, wherein the experimental device comprises: and a third sealing ring used for sealing the open hole is sleeved on the blanking cover (9).

4. The experimental device for testing the air flow of large annular parts according to claim 1, wherein the experimental device comprises: the middle hole blanking cover (6) is connected with the product (5) through bolts and nuts.

5. The experimental device for testing the air flow of large annular parts according to claim 1, wherein the experimental device comprises: the connecting sheet and the fixed bottom plate (1) are of an integrated structure.