CN209820774U

CN209820774U - Distortion device

Info

Publication number: CN209820774U
Application number: CN201920833074.1U
Authority: CN
Inventors: 曹焱焱; 盖国盛; 冯忠帅; 陆隆隆; 武卉; 李井洋
Original assignee: AECC Shenyang Engine Research Institute
Current assignee: AECC Shenyang Engine Research Institute
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2019-12-20
Anticipated expiration: 2029-06-04

Abstract

The application belongs to the technical field of the aeroengine test, concretely relates to distortion device includes: the mother net is arranged in the flow channel and shields part of the flow area of the flow channel; the subnet is arranged in the flow channel and shields part of the flow area of the flow channel; the subnet can rotate for the mother net to produce different coincidence area with the mother net, with this can be in certain extent continuous adjustment subnet and the flow area of the inlet channel that the mother net sheltered from, and then can realize continuously, real-time regulation makes the entering air produce the distortion of required form.

Description

Distortion device

Technical Field

The application belongs to the technical field of aero-engine tests, and particularly relates to a distortion device.

Background

When testing an aircraft engine, the extremely severe air inlet environment of the aircraft engine needs to be simulated, and for this reason, a distortion device is mostly arranged on testing equipment at present to realize the distortion of air inlet and change the quality of an air inlet flow field so as to achieve the air inlet condition required by the extremely severe air inlet environment.

The existing distortion device is mainly a single-layer or multi-layer distortion net which is arranged in an air inlet flow channel and shields partial flow area to enable the air flowing through the air inlet flow channel to be distorted.

Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.

Disclosure of Invention

It is an object of the present application to provide a distortion device to overcome or mitigate at least one of the above-mentioned disadvantages.

The technical scheme of the application is as follows:

a distortion device, comprising:

the mother net is arranged in the flow channel and shields part of the flow area of the flow channel;

the subnet is arranged in the flow channel and shields part of the flow area of the flow channel; the sub-network can be rotated relative to the parent network to create a different overlap area with the parent network.

According to at least one embodiment of the present application, the apparatus further comprises a driving mechanism connected to the sub-network and capable of driving the sub-network to rotate.

According to at least one embodiment of the present application, a drive mechanism comprises:

the driving ring is arranged in the circulation channel and is connected with the subnet;

and the driving motor is connected with the driving ring to drive the driving ring to rotate along the circumferential direction of the circulation channel so as to drive the subnet to rotate.

According to at least one embodiment of the present application, the driving mechanism further includes a driving rod having one end engaged with the driving ring through the insections and the other end connected with the driving motor.

According to at least one embodiment of the application, the end of the drive rod remote from the drive ring is coupled to the drive motor by a coupling.

According to at least one embodiment of the application, the device also comprises a supporting cylinder, wherein a flow channel is formed in the supporting cylinder, and a through hole is formed in the wall surface of the supporting cylinder; the driving rod penetrates through the through hole.

According to at least one embodiment of the present application, the drive rod is grease-sealed to the through hole.

According to at least one embodiment of the application, the flow channel inner wall has an annular groove in which the drive ring is arranged with a clearance fit.

According to at least one embodiment of the application, the sub-network is fan-shaped, the outer circumference of which is connected to the drive ring.

According to at least one embodiment of the application, the device further comprises a fixing ring which is fixedly arranged in the annular groove;

the mother net is in fan shape, the periphery of the mother net is connected with the fixed ring, and the top point of the mother net is hinged with the top point of the subnet.

Drawings

Fig. 1 is a schematic structural diagram of a distortion device provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of a distortion device provided by an embodiment of the present application;

wherein:

1-a mother net; 2-subnet; 3-drive ring; 4-driving the motor; 5-a drive rod; 6-supporting the cylinder; 7-fixing the ring; 8-the overlap of the subnet and the parent network; 9-an intake collector; 10-air inlet flow channel.

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. 1-2.

A distortion device, comprising:

the master net 1 is arranged in the flow channel and shields part of the flow area of the flow channel;

the subnet 2 is arranged in the flow channel and shields part of the flow area of the flow channel; the subnetwork 2 can rotate relative to the parent network 1 to create a different overlapping area with the parent network 1.

As for the distortion device disclosed in the above embodiment, it is easily understood by those skilled in the art that the inlet of the flow channel is connected to the outlet of the intake collector 9, and the outlet of the flow channel is connected to the inlet of the intake runner 10, that is, the distortion device is disposed in the intake runner, which can change the area of the overlapped portion of the subnet 2 and the mother net 1 by rotating the subnet 2, so as to continuously adjust the flow area of the intake runner blocked by the subnet 2 and the mother net 1 within a certain range, thereby continuously adjusting the intake air to generate the distortion in the required form in real time.

In some optional embodiments, a driving mechanism is further included, which is connected to the sub-network 2 and can drive the sub-network 2 to rotate.

In some alternative embodiments, the drive mechanism comprises:

a drive ring 3 disposed in the flow passage and connected to the subnet 2;

and the driving motor 4 is connected with the driving ring 3 to drive the driving ring 3 to rotate along the circumferential direction of the circulation channel, so that the subnet 2 is driven to rotate.

In some alternative embodiments, the drive mechanism further comprises a drive rod 5 having one end engaged with the drive ring 3 by a serration and the other end connected to the drive motor 4.

In some alternative embodiments, the end of the driving rod 5 remote from the driving ring 3 is coupled to the driving motor 4.

In some optional embodiments, the device further comprises a supporting cylinder 6, a flow channel is formed in the supporting cylinder, and a through hole is formed in the wall surface of the supporting cylinder; the drive rod 5 is disposed through the through hole.

In some alternative embodiments, the driving rod 5 is sealed with grease between the through hole to ensure the airtightness of the distortion device.

In some alternative embodiments, the flow channel inner wall has an annular groove in which the drive ring 3 is arranged with a clearance fit.

In some alternative embodiments, the subnet 2 is fan shaped with its periphery connected to the drive ring 3.

In some optional embodiments, the device further comprises a fixing ring 7 fixedly arranged in the annular groove;

the primary net 1 is in the shape of a sector, the periphery of which is connected with a fixed ring 7, and the vertex of which is hinged with the vertex of the secondary net 2.

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.

Claims

1. A distorting apparatus, comprising:

the main net (1) is arranged in the flow channel and shields part of the flow area of the flow channel;

a subnet (2) which is arranged in the flow channel and shields part of the flow area of the flow channel; the sub-network (2) can be rotated relative to the parent network (1) to create a different overlapping area with the parent network (1).

2. Distortion device in accordance with claim 1,

the device also comprises a driving mechanism which is connected with the subnet (2) and can drive the subnet (2) to rotate.

3. Distortion device in accordance with claim 2,

the drive mechanism includes:

a drive ring (3) arranged in the flow channel and connected to the subnetwork (2);

and the driving motor (4) is connected with the driving ring (3) to drive the driving ring (3) to rotate along the circumferential direction of the circulation channel, so that the subnet (2) is driven to rotate.

4. Distortion device in accordance with claim 3,

the driving mechanism further comprises a driving rod (5), one end of the driving rod is meshed with the driving ring (3) through the insections, and the other end of the driving rod is connected with the driving motor (4).

5. Distortion device in accordance with claim 4,

one end of the driving rod (5) far away from the driving ring (3) is connected with the driving motor (4) through a coupler.

6. Distortion device in accordance with claim 4,

the device also comprises a supporting cylinder (6), wherein the inside of the supporting cylinder forms the circulation channel, and the wall surface of the supporting cylinder is provided with a through hole; the driving rod (5) penetrates through the through hole.

7. Distortion device in accordance with claim 6,

the driving rod is sealed by grease between the driving rod (5) and the through hole.

8. Distortion device in accordance with claim 3,

the inner wall of the flow channel is provided with an annular groove, and the driving ring (3) is arranged in the annular groove in a clearance fit mode.

9. Distortion device in accordance with claim 8,

the subnet (2) is fan-shaped, and the periphery of the subnet is connected with the driving ring (3).

10. Distortion device in accordance with claim 9,

the fixing ring (7) is fixedly arranged in the annular groove;

the mother net (1) is fan-shaped, the periphery of the mother net is connected with the fixed ring (7), and the vertex of the mother net is hinged with the vertex of the subnet (2).