Propeller hub fairing support

Abstract

The utility model belongs to the technical field of airplane structure design, and particularly relates to a propeller hub fairing support which is of a disc structure, and a plurality of fixing claw heads are evenly distributed along a disc. Any fixed claw head comprises an arc-shaped supporting plate and a mounting platform arranged on the top of the arc-shaped supporting plate, and a connecting hole is formed in the mounting platform. The propeller hub fairing support is light in weight, balanced in weight and firm in fixation.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft structure design, and in particular relates to a lightweight propeller hub fairing bracket. Background Art

[0002] The hub fairing bracket is a fixed element on which the hub fairing is installed on the hub. It rotates with the hub and propeller. According to the characteristics of rotating parts, it should be light in weight, balanced in mass and firmly fixed, otherwise it will cause vibration during rotation. Utility Model Content

[0003] 1. Technical problems solved

[0004] The utility model provides a lightweight propeller hub fairing bracket made of magnesium alloy material. The bracket has a disc structure with 6 fixed claws evenly arranged along the disc. The propeller hub fairing bracket of this structural form has light weight, balanced mass and is firmly fixed.

[0005] 2. Technical solution

[0006] A hub fairing bracket is a disc structure with a plurality of fixed claws evenly arranged along the circumference of the disc; any fixed claw comprises an arc-shaped support plate and a mounting platform arranged on the top of the arc-shaped support plate, and a connecting hole is opened on the mounting platform.

[0007] Furthermore, the mounting platform on the fixed claw head faces the center of the disc structure to ensure matching with the interface of the mounting hub, while the overall inclined support structure can improve the structural strength.

[0008] Furthermore, all installation platforms are on the same horizontal plane.

[0009] Furthermore, the fixed claw head and the disc are integrally cast.

[0010] Furthermore, the surface treatment of the bracket is chemical oxidation, followed by coating a layer of primer and then a layer of topcoat.

[0011] Furthermore, the disc is provided with a weight-reducing groove.

[0012] Furthermore, a bushing is arranged in the connecting hole.

[0013] 3. Beneficial technical effects

[0014] The utility model provides a lightweight propeller hub fairing bracket, which is a disc structure with uniform mass, satisfying the balance requirement of rotating parts; the material is magnesium alloy with light mass; 6 fixing claws are evenly arranged along the disc, and the bracket is firmly fixed to the propeller hub by the 6 claws; after chemical oxidation on the surface of the bracket, a layer of primer is applied, and then a layer of topcoat is applied, so the bracket has strong anti-corrosion ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model includes 3 drawings, and the drawings and the descriptions of the drawings are as follows:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 A schematic diagram of a lightweight propeller hub fairing bracket provided by the utility model;

[0018] Figure 3 A schematic diagram of the installation of a lightweight propeller hub fairing bracket provided by the utility model;

[0019] Including: 1. Hub fairing bracket, 2. Bolts. DETAILED DESCRIPTION

[0020] Combined with the attached drawings, a lightweight propeller hub fairing bracket of the utility model is described in detail:

[0021] like Figure 1 , 2 As shown in the figure, a lightweight hub fairing bracket is provided. The bracket is a disc structure, and 6 fixed claws are evenly arranged along the disc. The weight is evenly distributed, which ensures the balance of the bracket during the rotation of the hub and propeller. The bracket material is a magnesium alloy casting. Magnesium alloy is the lightest metal, and its density is 1.81g / cm 3 , which is only three-fifths of that of aluminum alloy, achieving weight reduction and ensuring the lightweight requirements of the bracket parts; 6 fixed claws are evenly arranged along the disc, and the bracket is fixed to the hub by bolts to ensure a secure fixation; the bracket surface treatment is chemical oxidation, followed by a layer of primer and then a layer of topcoat, and the bracket has strong corrosion resistance. The bracket parts have complex shapes, and magnesium alloy castings are used to solve the problem that the parts are difficult to machine due to their complex shapes. In addition, the shape and size of the castings are very close to the parts, which reduces the amount of cutting and improves production efficiency.

[0022] like Figure 2 As shown, a lightweight hub fairing bracket 1 is provided. The bracket 1 is a disc structure, and 6 fixed claws are evenly arranged along the disc.

[0023] like Figure 3 As shown, the hub fairing bracket 1 is fixedly connected to the hub by bolts 2. The one-piece casting is adopted to solve the problem of difficult machining.

[0024] Finally, it should be noted that the above implementation methods or implementation cases are only used to illustrate the technical solution of the utility model, and any incomplete details are regarded as conventional technical means or common knowledge in the field; it should be understood that the protection scope of the utility model is not limited to the above specific implementation forms, and any technician familiar with the field can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the utility model, and these modifications or substitutions should be covered within the protection scope of the utility model.

Claims

1. A hub fairing bracket, characterized in that: The bracket is a disc structure, and a plurality of fixed claws are evenly arranged along the disc; any fixed claw comprises an arc-shaped support plate and a mounting platform arranged on the top of the arc-shaped support plate, and a connecting hole is opened on the mounting platform.

2. The hub fairing bracket according to claim 1, characterized in that: The mounting platform on the fixed claw head faces the center of the disc structure.

3. The hub fairing bracket according to claim 2, characterized in that: All mounting platforms are on the same level.

4. The hub fairing bracket according to claim 2, characterized in that: The fixed claw head and the disc are integrally cast.

5. The hub fairing bracket according to claim 1, characterized in that: The surfaces of the fixed claw head and the disc are treated by chemical oxidation, then coated with a layer of primer and then a layer of topcoat.

6. The hub fairing bracket according to claim 5, characterized in that: The disc is provided with a weight-reducing groove.

7. The hub fairing bracket according to claim 1, characterized in that: A bushing is arranged in the connecting hole.

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