A multi-headed ear-inserting rotating shaft bracket and its processing method

Abstract

The present invention belongs to the technical field of rotating shaft brackets, and particularly relates to a multi-headed earplug rotating shaft bracket and a processing method thereof. The bracket body includes an upper web and a lower web. An earplug groove is provided between the upper web and the lower web, and an earplug for connecting with an earpiece is installed in the earplug groove. Compared with traditional brackets, it has better stability, is convenient for overall weight reduction, is easy to process and has a light weight. Moreover, the earplug rotating shaft bracket can be connected with a metal joint to achieve the interchangeability of the joints.

Description

Technical Field

[0001] The present invention belongs to the technical field of rotating shaft brackets, and particularly relates to a multi-headed ear plug rotating shaft bracket and a processing method thereof. Background Art

[0002] In currently widely used aircraft models, traditional metal or composite material bracket configurations dominate. Brackets for traditional rudder surface and cabin door type rotating mechanisms are usually manufactured by integral machining of metal. The tail rudder surface of Airbus series aircraft is made of carbon fiber composite material. Taking the A350 aircraft as an example, the composite tail rudder surface bracket adopts a connection method of a composite material laminate single joint and a metal double ear joint.

[0003] Such single ear composite material joints must bear a certain load, and the overall structure needs to be thickened, so its weight is relatively heavy, but the stability is still insufficient. Summary of the Invention

[0004] The present invention discloses a multi-headed ear plug rotating shaft bracket and a processing method thereof, mainly solving the problems of relatively heavy weight and insufficient stability of current composite material brackets.

[0005] To achieve the above object, the present invention provides a multi-headed ear plug rotating shaft bracket, including a bracket body, the bracket body includes an upper web and a lower web, an ear plug groove is arranged between the upper web and the lower web, and an ear plug for connecting with an ear piece is installed in the ear plug groove.

[0006] Further, the ear piece is connected to the upper web, the lower web and the ear plug through a connecting shaft.

[0007] Further, flanges are arranged on both sides of the upper web and the lower web.

[0008] Further, filling grooves are arranged between the flange, the upper web and the ear plug, and filling grooves are also arranged between the flange, the lower web and the ear plug, and filling bodies are arranged in the filling grooves.

[0009] Further, the filling body includes a tallow strip or foaming glue.

[0010] Further, the upper web, the lower web, the ear plug and the flange are integrally co-cured and formed.

[0011] Further, a plurality of ear plugs are arranged in the ear plug groove, an installation groove is arranged in the ear plug, and the ear piece is installed in the installation groove.

[0012] The present invention also provides a processing method for a multi-headed ear plug rotating shaft bracket, including the following steps:

[0013] Co-curing molding step: Prepare the preforms of the upper web, lower web, lugs, and flange, and then co-cure them through a combined mold. When co-curing, encapsulate a vacuum bag outside the combined mold.

[0014] Lug installation step: Install the lug in the wiping lug through a connecting shaft.

[0015] Furthermore, the combined mold is a metal combined mold.

[0016] Furthermore, after co-curing, machine the edges and inner holes of the bracket.

[0017] The technical solution provided by the present invention has at least the following technical effects:

[0018] The multi-headed lug rotating shaft bracket disclosed by the present invention includes an upper web and a lower web. A lug groove is provided between the upper web and the lower web. A lug is arranged in the lug groove. The lug can be connected to the lug. Compared with the traditional bracket, it has better stability, is convenient for overall weight reduction, is easy to process and has a light weight; and the lug rotating shaft bracket can be connected to a metal joint to achieve the interchangeability of the joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the lug rotating shaft bracket in Embodiment 1 of the present invention;

[0021] Figure 2 It is an exploded view of the lug rotating shaft bracket in Embodiment 1 of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the lug rotating shaft bracket in Embodiment 2 of the present invention;

[0023] Figure 4 It is an exploded view of the lug rotating shaft bracket in Embodiment 2 of the present invention.

[0024] Main reference numerals: 1. Upper web; 2. Lower web; 3. Lug; 31. Installation groove; 4. Lug; 5. Connecting shaft; 6. Flange; 7. Filler. DETAILED DESCRIPTION OF THE INVENTION

[0025] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 thus should not be construed as limiting the present invention.

[0027] Embodiment 1: As Figure 1 , Figure 2 shown, this embodiment discloses a multi-head earplug rotating shaft bracket, which includes a bracket body. The bracket body includes an upper web 1 and a lower web 2. The structures of the upper web 1 and the lower web 2 are the same. An earplug groove is provided between the upper web 1 and the lower web 2, and an earplug 3 for connecting with an earpiece 4 is installed in the earplug groove. In this embodiment, the number of earplugs 3 is single, and the earplug 3 is designed with an upper and lower structure. An installation groove 31 is provided in the middle of the earplug 3, and the earpiece 4 can be installed in the earplug 3. Specifically, the earpiece 4 is connected to the upper web 1, the lower web 2, and the earplug 3 through a connecting shaft 5. A plurality of corresponding connecting holes are provided on the upper web 1, the lower web 2, the earplug 3, and the earpiece 4. Each connecting shaft 5 passes through the upper web 1, the lower web 2, the earplug 3, and the earpiece 4 to realize the installation and connection of the earpiece 4, making the entire earplug 3 rotating shaft bracket highly stable. In order to further improve the stability of the earplug 3 rotating shaft bracket, edge strips 6 are provided on both sides of the upper web 1 and the lower web 2. The two side edge strips 6 are divided into a left edge strip 6 and a right edge strip 6. The edge strips 6 cover the sides of the upper web 1, the lower web 2, and the earplug 3. Under the action of the edge strips 6, the stability between the upper web 1, the lower web 2, and the earplug 3 is improved, and then the stability of the entire earplug 3 rotating shaft bracket is improved.

[0028] The edges of the upper web 1, lower web 2, and lugs 3 are all arc-shaped structures. Therefore, filling grooves are formed at the joints between the flange 6, upper web 1, and lugs 3. Specifically, filling grooves are provided between the flange 6, upper web 1, and lugs 3, and also between the flange 6, lower web 2, and lugs 3. A filler 7 is arranged in the filling grooves. The filler 7 can improve the stability between the upper web 1 or lower web 2, flange 6, and lugs 3, making their connection tighter and more secure. In order to effectively reduce the weight of the lug 3 rotating shaft bracket, the filler 7 mainly uses lightweight filling materials. These materials include wick strips and foaming glue, which can not only provide the necessary support and stability but also significantly reduce the overall weight. The wick strips, with their unique structure and material, can withstand a certain amount of pressure without deformation, while the foaming glue, with its lightness and good buffering performance, provides additional protection for the rotating shaft bracket. Through such a design, we not only ensure the performance and durability of the bracket but also greatly improve its portability and usage efficiency.

[0029] In this embodiment, the upper web 1, lower web 2, lugs 3, and flange 6 of the lug 3 rotating shaft bracket are integrally co-cured and formed into a single unit. This significantly improves the structural stability of the bracket and greatly enhances its firmness. Through this integrated manufacturing method, the connection between each part is closer, thus ensuring the reliability and durability of the entire bracket under various working conditions.

[0030] Embodiment 2: As Figure 3 , Figure 4 shown, the main difference between this embodiment and Embodiment 1 is that in this embodiment, two lugs 3 are arranged up and down in the lug groove, and both of these lugs 3 are connected to the ear pieces 4. The ear pieces 4 form a double-ear piece 4 joint in a "back-to-back" form. At the same time, there are also two fillers 7 to fill the gaps between the lugs 3 and the flange 6, upper web 1, and lower web 2. In addition to the two lugs 3, more lugs 3 can be added according to actual needs to achieve the design of a multi-lug 3 bracket. This design helps to meet the special breakage safety requirements of rotating structures such as wing surfaces and hatch doors, as well as the design requirements for multi-path force transmission.

[0031] Embodiment 3: This embodiment provides a processing method for a multi-lug type lug rotating shaft bracket, including the following steps:

[0032] The co-curing forming process includes: First, prepare the preforms of the upper web 1, lower web 2, lugs 3 and flange 6, which can be made of composite materials such as carbon fiber unidirectional tapes or fabrics. Subsequently, co-curing forming is carried out through a combined mold, which is responsible for forming the inner and outer profiles of the lug 3 bracket and transferring pressure and temperature during the curing process. The combined mold is a metal combined mold, including side molds, top plates, lug 3 mandrels, upper and lower cover plates, etc., constituting a complete mold combination scheme. This scheme can realize the curing forming of the multi-head lug 3 rotating shaft bracket and is applicable to autoclave co-curing and RTM liquid forming processes. During the co-curing forming process, a vacuum bag is encapsulated outside the combined mold. After forming, the edges and inner holes of the bracket are machined, and finally, the lug 4 is installed in the lug 3 through the connecting shaft 5 to form the lug 3 rotating shaft bracket. Compared with the traditional bracket, the lug 3 rotating shaft bracket designed by the present invention is formed by one-time co-curing of composite materials. It is convenient to process and light in weight. The lug 3 type rotating shaft bracket can be connected with a metal joint to realize the interchangeability of the joints. In addition, the multi-head lug 3 bracket web has better stability, which is convenient for overall weight reduction.

[0033] The above disclosure of the embodiments is only for the purpose of better understanding the present invention, and is not used to limit the present invention. Any modifications, equivalent substitutions, and improvements made on the basis and within the scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-head ear-plug shaft bracket, comprising a bracket body, characterized in that: The support body comprises an upper belly plate (1) and a lower belly plate (2); an ear insertion groove is provided between the upper belly plate (1) and the lower belly plate (2); an ear (3) for connecting with an ear piece (4) is installed in the ear insertion groove; the ear (3) is designed as an upper and lower structure; a mounting groove (31) is provided in the ear (3); the ear piece (4) is installed in the mounting groove (31); the ear piece (4) is connected to the upper belly plate (1), the lower belly plate (2) and the ear (3) through a connecting shaft (5); the upper belly plate (1) and the lower belly plate (2) are connected to each other through a connecting shaft (5); The upper and lower sides of the flange (6) are provided with edge strips (6); a filling groove is provided between the edge strip (6), the upper belly plate (1) and the plug ear (3); a filling groove is also provided between the edge strip (6), the lower belly plate (2) and the plug ear (3); a filling body (7) is provided in the filling groove; the upper belly plate (1), the lower belly plate (2), the plug ear (3) and the edge strip (6) are integrally co-cured; a plurality of plug ears (3) are provided in the plug ear groove; the filling body (7) comprises a twisted strip or a foamed rubber; the processing method of the multi-head plug ear rotating shaft bracket comprises the following steps: Co-curing molding step: preparing a preform of the upper belly plate (1), the lower belly plate (2), the plug ear (3) and the edge strip (6), and then co-curing and molding them through a combined mold. During the co-curing molding, a vacuum bag is packaged outside the combined mold; The ear piece (4) installation steps are as follows: the ear piece (4) is installed in the ear scraper through the connecting shaft (5).

2. The multi-head ear-plug rotating shaft bracket according to claim 1, characterized in that: The combined mold is a metal combined mold.

3. The multi-head ear-plug rotating shaft bracket according to claim 1, characterized in that: The edges and inner holes of the bracket are machined after co-curing.

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