CN213921457U

CN213921457U - Duct type propeller structure and guide vane

Info

Publication number: CN213921457U
Application number: CN202022641393.8U
Authority: CN
Inventors: 郑伟
Original assignee: Shenyang Sitana Aviation Technology Co ltd
Current assignee: Shenyang Sitana Aviation Technology Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-10
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a duct type propeller structure and a guide vane, which comprises a duct ring body and a guide vane; the number of the guide vanes is at least three, and the guide vanes are radially arranged on the inner wall of the duct ring body at equal angles. The inner wall of the culvert ring body is also provided with a support rod; the number of the support rods is the same as that of the guide vanes, and the support rods are radially arranged on the inner wall of the duct ring body at uniform angles; in the axial direction of the culvert ring body, the guide vanes and the support rods are in a superposed state. The utility model discloses increase pneumatic efficiency, promote energy utilization rate. In addition, the integrated design also reduces the resistance of the airflow in the duct. Meanwhile, the design of combining the guide vanes with the supporting arms ensures the installation strength of the duct and increases the flow guide performance of the blade in the airflow ejection direction.

Description

Duct type propeller structure and guide vane

Technical Field

The utility model belongs to the technical field of duct formula aircraft technique and specifically relates to a duct formula propeller structure and guide vane.

Background

The ducted propeller structure is an axial fluid propulsion device, and therefore, can only flow axially for air flow through the duct, especially for an axial vertical position. In order to effectively utilize the power of the ducted fan, a guide vane suitable for the outlet is added in the duct, and the deflection of the guide vane is utilized to control the direction of the outlet airflow. Almost no flow guide design exists in the conventional duct design and manufacture, only the airfoil-shaped supporting rods exist, the air flow passing performance of the design is poor, and the pneumatic efficiency of the duct is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a duct formula propeller structure and guide vane to the defect that prior art exists, increase pneumatic efficiency, promote energy utilization. In addition, the integrated design also reduces the resistance of the airflow in the duct. Meanwhile, the design of combining the guide vanes with the supporting arms ensures the installation strength of the duct and increases the flow guide performance of the blade in the airflow ejection direction.

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

the utility model provides a guide vane for duct formula screw structure, guide vane includes that the fashioned middle section of integral type owner of guide vane, upper end thickened section, lower extreme thickened section, the inner wall at the duct circle body is connected to the lower extreme thickened section, the preceding side of the main guide vane section in middle section is imitative wing section structure, and the back side of the main guide vane section in middle section is sharp limit.

a ducted propeller structure comprises a ducted ring body and guide vanes;

the number of the guide vanes is at least three, and the guide vanes are radially arranged on the inner wall of the duct ring body at equal angles. The guide vane comprises a middle section main guide section, an upper end thickened section and a lower end thickened section which are integrally formed, wherein the lower end thickened section is connected to the inner wall of the duct ring body, the front side edge of the middle section main guide section is of an imitation airfoil structure, and the rear side edge of the middle section main guide section is a sharp edge.

Furthermore, a support rod is also arranged on the inner wall of the culvert ring body; the number of the support rods is the same as that of the guide vanes, and the support rods are radially arranged on the inner wall of the duct ring body at uniform angles;

in the axial direction of the culvert ring body, the guide vanes and the support rods are in a superposed state.

Compared with the prior art, the utility model following beneficial effect has:

guide vane, the front end is imitative wing section structure, and the rear end is sharp-pointed, enables gaseous more smooth and easy outflow, and traditional support arm design can not make gaseous more efficient outflow. The upper end and the lower end are thick, the middle is flat, the whole body is streamline, and the upper end and the lower end are thick and are firmer to be fixed with the duct ring body. The design can support the duct ring body, and has good flow guiding performance, and the integrated design reduces the resistance of the airflow in the duct.

Drawings

Fig. 1 is a schematic structural view of a ducted propeller structure of the present invention;

fig. 2 is a perspective view of the guide vane of the present invention;

FIG. 3 is a cross-sectional view of a mid-section main guide section of the guide vane;

figure 4 is a prior art view of a conventional support arm culvert installation.

In the figure: 1. the structure comprises a duct ring body, 2 guide vanes, 3 supporting bodies, 4 upper ends, 5 lower ends, 6 front side edges and 7 rear side edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution:

a ducted propeller structure comprises a ducted ring body 1;

the device also comprises a guide vane 2;

the number of the guide vanes is at least three, and the guide vanes are radially arranged on the inner wall of the duct ring body at equal angles.

Further, the guide vane comprises a middle section main guide section, an upper end thickened section 4 and a lower end thickened section 5 which are integrally formed, the lower end thickened section is connected to the inner wall of the duct ring body, the front side edge 6 of the middle section main guide section is of an imitation airfoil structure, and the rear side edge 7 of the middle section main guide section is a sharp edge.

The connection mode of the guide vane and the inner wall of the duct ring body can be the same as that of the support body in the prior art, and various connection modes known in other prior art can also be adopted, including connection modes such as embedding, screw fixing, bonding and the like.

The utility model discloses increase pneumatic efficiency, promote energy utilization rate. In addition, the integrated design also reduces the resistance of the airflow in the duct. Meanwhile, the design of combining the guide vanes with the supporting arms ensures the installation strength of the duct and increases the flow guide performance of the blade in the airflow ejection direction.

All parts and parts which are not discussed in the present application and the connection mode of all parts and parts in the present application belong to the known technology in the technical field, and are not described again.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific 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 invention. 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 invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a guide vane for duct formula screw structure, its characterized in that, guide vane includes that the fashioned middle section of integral type owner leads flow section, upper end thickened section, lower extreme thickened section, the inner wall at the duct circle body is connected to the lower extreme thickened section, the preceding side of the main flow section of middle section is imitative wing section structure, and the back side of the main flow section of middle section is sharp limit.

2. A ducted propeller structure comprises a ducted ring body and guide vanes;

the ducted exhaust fan is characterized in that at least three guide vanes are arranged, and are radially arranged on the inner wall of the ducted ring body at equal angles;

the guide vane comprises a middle section main guide section, an upper end thickened section and a lower end thickened section which are integrally formed, wherein the lower end thickened section is connected to the inner wall of the duct ring body, the front side edge of the middle section main guide section is of an imitation airfoil structure, and the rear side edge of the middle section main guide section is a sharp edge.

3. The ducted propeller structure of claim 2, wherein the inner wall of the ducted ring body is further provided with a support rod; the number of the support rods is the same as that of the guide vanes, and the support rods are radially arranged on the inner wall of the duct ring body at uniform angles;