Axial flow blade angle fixing device

Abstract

The utility model relates to an axial flow blade angle fixing device which comprises a meson body, a positioning groove is formed in the middle of the meson body, a positioning hole is formed in the edge of the meson body, and the edge of the positioning groove extends towards the center of the meson body and forms a plurality of protruding parts. The meson body is arranged in a regular hexagon shape, and the positioning groove is formed in the center of the meson body. An arc-shaped transition part is arranged on the edge of the meson body. The number of the positioning holes is two, and the centers of the positioning holes and the center of the meson body are on the same straight line. According to the axial flow blade angle fixing device, the positioning grooves are fixedly connected with the blades in a clamped mode, the blades are fixedly installed on the hub through the axial flow blade angle fixing device, when the two positioning holes are flush with the hub face, the blade installation angle is right at the moment, and the axial flow blade angle fixing device is convenient to use and high in practicability. And meanwhile, the angle deviation during manual angle locking adjustment is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, and in particular relates to an axial flow blade angle fixing device. Background Art

[0002] The blades in the fan are important components that generate airflow by rotating. The existing blades need to be manually adjusted in angle, which is inconvenient to use and easily leads to angle deviation when the angle is manually adjusted and locked, reducing the consistency and accuracy of the angle, and prolonging the working time, reducing the working efficiency and increasing the cost. Utility Model Content

[0003] The purpose of the utility model is to provide an axial flow blade angle fixing device, aiming to solve the technical problems in the prior art that manual adjustment of the blade angle is inconvenient to use and easily leads to angle deviation when the manual adjustment angle is locked, thereby reducing the consistency and accuracy of the angle, prolonging the working time, reducing the working efficiency and increasing the cost.

[0004] To achieve the above-mentioned purpose, an axial flow blade angle fixing device provided by an embodiment of the utility model includes a meson body, a positioning groove is provided in the middle of the meson body, the meson body is arranged in a regular polygon, the positioning groove is arranged in a polygon, a positioning hole is provided at the edge of the meson body, the edge of the positioning groove extends toward the center of the meson body, and forms a plurality of protrusions.

[0005] As an optional solution of the utility model, the meson body is arranged in a regular hexagon, and the positioning groove is arranged at the center of the meson body.

[0006] As an optional solution of the utility model, an arc-shaped transition portion is provided on the edge of the meson body.

[0007] As an optional solution of the utility model, two positioning holes are provided, and the centers of the positioning holes and the center of the meson body are on the same straight line.

[0008] As an optional solution of the present invention, there are eight protrusions.

[0009] The above one or more technical solutions in the axial flow blade angle fixing device provided by the embodiment of the utility model have at least one of the following technical effects:

[0010] The axial flow blade angle fixing device provided in the present application is fixed to the blade by means of a positioning groove. The blade is fixedly mounted on the hub through the axial flow blade angle fixing device of the present application. When the two positioning holes are flush with the hub surface, the blade installation angle is just right. The axial flow blade angle fixing device provided in the present application is easy to use, and also avoids angle deviation during manual angle adjustment and locking, thereby improving the consistency and accuracy of the angle, shortening working time, improving work efficiency, and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 A schematic structural diagram of an axial flow blade angle fixing device provided in an embodiment of the utility model.

[0013] Figure 2 A side view of an axial flow blade angle fixing device provided in an embodiment of the utility model.

[0014] Figure 3 A three-dimensional diagram of an axial flow blade angle fixing device provided in an embodiment of the utility model.

[0015] Figure 4 This is a schematic diagram of the structure in which the axial flow blade angle fixing device provided in an embodiment of the utility model is installed on the blade.

[0016] Figure 5 This is a schematic diagram of the structure in which the axial flow blade angle fixing device provided in an embodiment of the utility model is installed on the blade and the hub.

[0017] Figure 6 A side view of an axial flow blade angle fixing device provided in an embodiment of the utility model installed on a blade and a hub.

[0018] Among them, the reference numerals in the figure are:

[0019] 1. Meson body; 2. Positioning groove; 3. Positioning hole; 4. Protrusion; 5. Arc-shaped transition part; 6. Blade; 7. Hub. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] In one embodiment of the present invention, Figures 1 to 3As shown, an axial flow blade angle fixing device is provided, including a meson body 1, a positioning groove 2 is provided in the middle of the meson body 1, the meson body 1 is arranged in a regular polygon, the positioning groove 2 is arranged in a polygon, a positioning hole 3 is provided at the edge of the meson body 1, and the edge of the positioning groove 2 extends to the center of the meson body 1, and forms a plurality of protrusions 4. The axial flow blade angle fixing device provided in the present application is fixed with the blade 6 by the positioning groove 2, and the blade 6 is fixedly installed on the hub 7 by the axial flow blade angle fixing device of the present application. When the two positioning holes 3 are flush with the surface of the hub 7, the installation angle of the blade 6 is just right. The axial flow blade angle fixing device provided in the present application is easy to use, and also avoids the angle deviation when the angle is manually adjusted and locked, improves the consistency and accuracy of the angle, shortens the working time, improves the working efficiency, and reduces the cost.

[0025] In another embodiment of the utility model, the meson body 1 of the axial flow blade angle fixing device is arranged in a regular hexagonal shape, and the positioning groove 2 is arranged at the center of the meson body 1. The positioning groove 2 is used to fix the blade 6. Furthermore, the edge of the meson body 1 of the axial flow blade angle fixing device is provided with an arc transition portion 5.

[0026] In another embodiment of the utility model, the axial flow blade angle fixing device has two positioning holes 3, and the center of the positioning hole 3 is on the same straight line as the center of the meson body 1. When the two positioning holes 3 are flush with the hub 7, the installation angle of the blade 6 is just right.

[0027] In another embodiment of the utility model, the axial flow blade angle fixing device is provided with eight protrusions 4 , and the protrusions 4 are used to abut against and fix the blades 6 .

[0028] like Figure 4 As shown, the axial flow blade angle fixing device provided in the present application is fixedly connected to the blade 6 through the positioning groove 2.

[0029] like Figure 5 As shown, the axial flow blade angle fixing device provided in the present application is fixedly connected to the blade 6 and the hub 7 through the positioning groove 2.

[0030] like Figure 6 As shown, the axial flow blade angle fixing device provided in the present application is fixedly connected to the blade 6 and the hub 7 through the positioning groove 2. When the two positioning holes 3 are flush with the surface of the hub 7, the installation angle of the blade 6 is just right.

[0031] The axial flow blade angle fixing device provided in the present application is fixed to the blade 6 by means of the positioning groove 2. The blade 6 is fixedly installed on the hub 7 through the axial flow blade angle fixing device of the present application. When the two positioning holes 3 are flush with the surface of the hub 7, the installation angle of the blade 6 is just right. The axial flow blade angle fixing device provided in the present application is easy to use, and also avoids angle deviation during manual adjustment of the angle and locking, thereby improving the consistency and accuracy of the angle, shortening the working time, improving the working efficiency, and reducing the cost.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An axial flow blade angle fixing device, characterized in that: It includes a meson body, a positioning groove is arranged in the middle of the meson body, the meson body is arranged in a regular polygon, the positioning groove is arranged in a polygon, a positioning hole is arranged at the edge of the meson body, the edge of the positioning groove extends toward the center of the meson body and forms a plurality of protrusions.

2. The axial flow blade angle fixing device according to claim 1, characterized in that: The meson body is arranged in a regular hexagonal shape, and the positioning groove is arranged at the center of the meson body.

3. The axial flow blade angle fixing device according to claim 1, characterized in that: An arc-shaped transition portion is provided at the edge of the meson body.

4. The axial flow blade angle fixing device according to claim 1, characterized in that: There are two positioning holes, and the centers of the positioning holes and the center of the meson body are on the same straight line.

5. The axial flow blade angle fixing device according to claim 1, characterized in that: There are eight protrusions.

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