阅读说明：本技术 一种发动机性能试验件机匣内腔测量结构 (Engine performance test piece machine casket inner chamber measurement structure ) 是由 王小颖 徐建壮 叶贵明 于 2019-09-17 设计创作，主要内容包括：本申请属于发动机风扇性能试验技术领域,具体涉及一种发动机性能试验件机匣内腔测量结构,包括：支点机匣,其内形成机匣内腔,其上具有与机匣内腔连通的测量孔；安装座,在支点机匣外壁固定安装,其上具有第一通孔；第一通孔与测量孔连通；腔压测量空心管,其一端为感受端,一端为连接端；其中,连接端用以连接至测压设备；第一堵头,具有：油封试验状态,第一堵头塞入第一通孔；性能试验状态,第一堵头脱出第一通孔,感受端插入至第一通孔。(The application belongs to the technical field of engine fan performance test, concretely relates to engine performance test spare machine casket inner chamber measurement structure, include: the fulcrum casing is internally provided with a casing inner cavity, and a measuring hole communicated with the casing inner cavity is formed in the fulcrum casing; the mounting seat is fixedly mounted on the outer wall of the fulcrum casing and is provided with a first through hole; the first through hole is communicated with the measuring hole; a cavity pressure measuring hollow pipe, one end of which is a sensing end and the other end is a connecting end; the connecting end is used for connecting to pressure measuring equipment; a first plug having: in the oil seal test state, the first plug is plugged into the first through hole; in the performance test state, the first plug is separated from the first through hole, and the sensing end is inserted into the first through hole.)

1. The utility model provides an engine performance test piece machine casket inner chamber measurement structure which characterized in that includes:

the fulcrum casing (1) is internally provided with a casing inner cavity, and a measuring hole communicated with the casing inner cavity is formed in the fulcrum casing (1);

the mounting seat (2) is fixedly mounted on the outer wall of the fulcrum casing (1) and is provided with a first through hole; the first through hole is communicated with the measuring hole;

a cavity pressure measuring hollow pipe (3), one end of which is a sensing end and the other end is a connecting end; the connecting end is used for connecting to a pressure measuring device;

a first plug (4) having:

in the oil seal test state, the first plug (4) is plugged into the first through hole;

and in the performance test state, the first plug (4) is separated from the first through hole, and the sensing end is inserted into the first through hole.

2. The engine performance test piece case cavity measurement structure of claim 1,

further comprising:

the second plug (5) is provided with a second through hole, and the sensing end is inserted into the second through hole; wherein the content of the first and second substances,

and when the first plug (4) is in the performance test state, the second plug (5) is plugged into the first through hole.

3. The engine performance test piece case cavity measurement structure of claim 1,

the mounting seat (2) is provided with a standby hole; wherein the content of the first and second substances,

the first plug (4) is positioned:

when the oil seal is in a test state, the second plug (5) is plugged into the standby hole;

and in the performance test state, the second plug (5) is separated from the standby hole, and the first plug (4) is plugged into the standby hole.

4. The engine performance test piece case cavity measurement structure of claim 3,

the first plug (4) is positioned:

in the oil seal test state, the first plug (4) is in fit contact with the ball head conical surface on the inner wall of the first through hole, and the second plug (5) is in fit contact with the ball head conical surface on the inner wall of the spare hole;

and in the performance test state, the first plug (4) is in fit contact with the ball head conical surface on the inner wall of the standby hole, and the second plug (5) is in fit contact with the ball head conical surface on the inner wall of the first through hole.

5. The engine performance test piece case cavity measurement structure of claim 3,

further comprising a nut (6) having:

in a compression state, the nut (6) is in threaded fit connection with the mounting seat (2), and the top of the nut compresses the first plug (4) and the second plug (5);

and in a separated state, the screw cap (6) is separated from the mounting seat (2).

6. The engine performance test piece case cavity measurement structure of claim 5,

the top of the nut (6) is provided with a third through hole and a fourth through hole; the nut (6) is in:

and in the compression state, the third through hole is communicated with the first through hole, and the fourth through hole is communicated with the standby hole so as to lead out the connecting end.

7. The engine performance test piece case cavity measurement structure of claim 6,

further comprising:

and the gasket (10) is arranged between the nut (6) and the first plug (4) and the second plug (5).

8. The engine performance test piece case cavity measurement structure of claim 1,

the outer wall of the fulcrum casing (1) is provided with a groove; the mounting seat (2) is partially inserted into the groove.

9. The engine performance test piece case cavity measurement structure of claim 1,

the outer wall of the fulcrum casing (1) is provided with a protruding part (7); the protruding part (7) is provided with a fifth through hole;

engine performance test piece machine casket inner chamber measurement structure still includes:

the casing body (8) is arranged on the periphery of the fulcrum casing (1) and is provided with a sixth through hole;

a support plate (9), one end of which is connected with the convex part (7), the other end of which is connected with the inner wall of the casing shell (8), and a seventh through hole which is communicated with the sixth through hole is arranged on the support plate;

wherein the content of the first and second substances,

the connecting end sequentially penetrates through the fifth through hole, the seventh through hole and the sixth through hole to be connected to the pressure measuring equipment.

Technical Field

The application belongs to the technical field of engine fan performance tests, and particularly relates to an inner cavity measuring structure of an engine performance test cartridge receiver.

Background

The performance test of the engine fan needs to be carried out, the pressure of the inner cavity of the fulcrum casing needs to be measured in real time through the pressure measuring equipment outside the casing body of the test piece, currently, most of the methods are that a cavity pressure measuring hollow pipe connected with the measuring equipment is introduced into the inner cavity of the casing by directly processing a measuring hole on the fulcrum casing, so that the real-time measurement of the pressure of the inner cavity of the casing is realized, and the technical scheme has the following defects:

1) before carrying out the engine fan test, need carry out the oil blanket test to the testpieces earlier, for avoiding oil blanket test in-process to the cavity pressure measurement hollow tube and measuring hole to cause the pollution, the measuring hole is many to carry out the benefit processing after the oil blanket is experimental, and this process relates to the dismouting of a large amount of parts of testpieces, and the process is loaded down with trivial details, the implementation of being not convenient for.

2) The cavity pressure measuring hollow pipe is welded and fixed on the inner cavity casing, and the test piece is disassembled and reassembled, so that the cavity pressure measuring hollow pipe is easy to damage and needs to be reassembled.

The present application is made in view of the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The present application is directed to an engine performance test piece casing cavity measurement structure that overcomes or alleviates at least one of the deficiencies of the prior art.

The technical scheme of the application is as follows:

an engine performance test piece cartridge cavity measurement structure, comprising:

the fulcrum casing is internally provided with a casing inner cavity, and a measuring hole communicated with the casing inner cavity is formed in the fulcrum casing;

the mounting seat is fixedly mounted on the outer wall of the fulcrum casing and is provided with a first through hole; the first through hole is communicated with the measuring hole;

a cavity pressure measuring hollow pipe, one end of which is a sensing end and the other end is a connecting end; the connecting end is used for connecting to pressure measuring equipment;

a first plug having:

in the oil seal test state, the first plug is plugged into the first through hole;

in the performance test state, the first plug is separated from the first through hole, and the sensing end is inserted into the first through hole.

According to at least one embodiment of the present application, further comprising:

the second plug is provided with a second through hole, the sensing end is inserted into the second through hole, and the side wall of the sensing end is welded and sealed with the second through hole; wherein the content of the first and second substances,

when the first plug is in a performance test state, the second plug is plugged into the first through hole.

According to at least one embodiment of the present application, the mounting base has a spare hole; wherein the content of the first and second substances,

the first plug is positioned:

when the oil seal is in a test state, the second plug is plugged into the standby hole;

and in the performance test state, the second plug is separated from the standby hole, and the first plug is plugged into the standby hole.

According to at least one embodiment of the present application, the first plug is at:

in the oil seal test state, the first plug is in fit contact with the ball head conical surface on the inner wall of the first through hole, and the second plug is in fit contact with the ball head conical surface on the inner wall of the spare hole;

and in a performance test state, the first plug is in fit contact with the ball head conical surface on the inner wall of the standby hole, and the second plug is in fit contact with the ball head conical surface on the inner wall of the first through hole.

According to at least one embodiment of the present application, further comprising: and the gasket is arranged between the nut and the first plug and between the nut and the second plug.

According to at least one embodiment of the present application, there is also included a nut having:

in a compression state, the screw cap is in threaded fit connection with the mounting seat, and the top of the screw cap compresses the first plug and the second plug;

and in a separated state, the nut is separated from the mounting seat.

According to at least one embodiment of the present application, the top of the nut has a third through hole, a fourth through hole; the nut is in:

when the pressing state is realized, the third through hole is communicated with the first through hole, and the fourth through hole is communicated with the standby hole so as to lead out the connecting end.

According to at least one embodiment of the present application, the fulcrum casing outer wall has a groove; the mount portion is inserted into the groove.

According to at least one embodiment of the present application, the fulcrum casing outer wall has a protruding portion; the protruding part is provided with a fifth through hole;

engine performance test piece machine casket inner chamber measurement structure still includes:

the casing body is arranged on the periphery of the fulcrum casing and is provided with a sixth through hole;

one end of the support plate is connected with the protruding part, the other end of the support plate is connected with the inner wall of the casing body, and a seventh through hole communicated with the sixth through hole is formed in the support plate;

wherein the content of the first and second substances,

the connecting end sequentially penetrates through the fifth through hole, the seventh through hole and the sixth through hole to be connected to pressure measuring equipment.

Drawings

FIG. 1 is a schematic diagram of a measurement structure of an inner cavity of a casing of an engine performance test piece provided by an embodiment of the application;

FIG. 2 is a schematic view of a first plug in an oil seal test state according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a first plug in a performance testing state according to an embodiment of the present disclosure;

wherein:

1-fulcrum case; 2-mounting a base; 3-cavity pressure measuring hollow pipe; 4-a first plug; 5-a second plug; 6-a screw cap; 7-a bulge; 8-casing shell; 9-a support plate; 10-pad.

Detailed Description

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

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

It should be noted that in the description of the present application, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art as the case may be.

The present application is described in further detail below with reference to fig. 1 to 3.

An engine performance test piece cartridge cavity measurement structure, comprising:

the fulcrum casing 1 is internally provided with a casing inner cavity, and a measuring hole communicated with the casing inner cavity is formed in the fulcrum casing 1;

the mounting seat 2 is fixedly mounted on the outer wall of the fulcrum casing 1 and is provided with a first through hole; the first through hole is communicated with the measuring hole;

a cavity pressure measuring hollow tube 3, one end of which is a sensing end and the other end is a connecting end; the connecting end is used for connecting to pressure measuring equipment;

a first plug 4 having:

in the oil seal test state, the first plug 4 is plugged into the first through hole to plug the first through hole, so that the oil seal test of the engine performance test piece can be carried out;

in the performance test state, the first plug 4 is separated from the first through hole, and the sensing end is inserted into the first through hole, so that the pressure in the inner cavity of the casing can be measured in real time through pressure measuring equipment during the performance test of the engine.

For the engine performance test piece casing inner cavity measuring structure disclosed by the embodiment, a skilled person in the art can understand that the structure can be processed and assembled when a test piece is subjected to an oil seal test, the implementation is convenient, and it can be understood that the sensing end of the cavity pressure measuring hollow pipe 3 is matched and connected with the first through hole on the mounting seat 2 in a detachable assembly mode, the cavity pressure measuring hollow pipe 3 is separated from the first through hole when the test piece is disassembled and assembled, and the damage and the pollution to the test piece in the disassembling and assembling process are avoided.

In some optional embodiments, further comprising:

the second plug 5 is provided with a second through hole, the sensing end is inserted into the second through hole, and the side wall of the sensing end is welded and sealed with the second through hole, so that the sensing end of the cavity pressure measuring hollow tube 3 can be effectively protected and sealed, and the cavity pressure measuring hollow tube is convenient to assemble; wherein the content of the first and second substances,

when the first plug 4 is in a performance test state, the second plug 5 is plugged into the first through hole.

In some alternative embodiments, the mounting seat 2 has a spare hole; wherein the content of the first and second substances,

the first plug 4 is positioned:

when the oil seal is in a test state, the second plug 5 is plugged into the standby hole;

in the performance test state, the second plug 5 is separated from the standby hole, and the first plug 4 is plugged into the standby hole.

In some alternative embodiments, the first plug 4 is:

in the oil seal test state, the first plug 4 is in fit contact with the ball head conical surface on the inner wall of the first through hole, and the second plug 5 is in fit contact with the ball head conical surface on the inner wall of the spare hole;

in a performance test state, the first plug 4 is in fit contact with the ball head conical surface on the inner wall of the standby hole, and the second plug 5 is in fit contact with the ball head conical surface on the inner wall of the first through hole.

For the engine performance test piece casing inner cavity measuring structure disclosed in the above embodiment, it can be understood by those skilled in the art that the matching form of the ball head conical surface can effectively enhance the sealing effect between the structures.

In some alternative embodiments, the device further comprises a nut 6 having:

in a compression state, the nut 6 is in threaded fit connection with the mounting seat 2, and the top of the nut compresses the first plug 4 and the second plug 5 so as to keep the first plug 4 and the second plug 5 in sealing contact with the mounting seat 2;

in the separated state, the nut 6 is separated from the mounting seat 2, so that the state of the first plug 4 can be changed.

In some alternative embodiments, the top of the nut 6 has a third through hole, a fourth through hole; the nut 6 is in:

when the pressing state is realized, the third through hole is communicated with the first through hole, and the fourth through hole is communicated with the standby hole so as to lead out the connecting end.

In some optional embodiments, further comprising: and the gasket 10 is arranged between the nut 6 and the first plug 4 and the second plug 5.

In some alternative embodiments, the outer wall of the fulcrum casing 1 has a groove; the mount 2 is partially inserted into the groove.

In some alternative embodiments, the outer wall of the fulcrum casing 1 has a protruding portion 7; the convex part 7 is provided with a fifth through hole;

engine performance test piece machine casket inner chamber measurement structure still includes:

the casing body 8 is arranged on the periphery of the fulcrum casing 1 and is provided with a sixth through hole;

a support plate 9, one end of which is connected with the convex part 7, the other end of which is connected with the inner wall of the casing body 8, and a seventh through hole which is communicated with the sixth through hole is arranged on the support plate;

wherein the content of the first and second substances,

the connecting end sequentially penetrates through the fifth through hole, the seventh through hole and the sixth through hole to be connected to pressure measuring equipment.

So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.