Metal connecting rod mechanism part composite structure and preparation method thereof

Abstract

The invention relates to the technical field of aviation equipment, and discloses a metal connecting rod mechanism part composite structure and a preparation method thereof.The metal connecting rod mechanism part composite structure comprises a first reinforcing block and a second reinforcing block, and the first reinforcing block and the second reinforcing block are arranged in parallel; the connection reinforcing frame is fixedly connected between the two first reinforcing blocks and the two second reinforcing blocks; the filling piece is arranged in the connection reinforcing frame and used for filling the connection reinforcing frame; the first coating layer is coated on an integral structure formed by the first reinforcing block, the second reinforcing block and the connection reinforcing frame; the protection assembly comprises a plurality of anti-abrasion parts, mounting holes are formed in the two ends of the first reinforcing block and the two ends of the second reinforcing block, and the anti-abrasion parts are arranged in the mounting holes. The metal connecting rod mechanism is independently formed, meanwhile, the manufacturing period is short, rapid production can be achieved, and the metal connecting rod mechanism has the advantages of being light in part weight, short in production period and high in strength.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation equipment, and in particular to a composite structure of a metal connecting rod mechanism part and a preparation method thereof. Background Art

[0002] In the aviation field, composite materials have the advantages of light weight, corrosion resistance, high temperature resistance and good fatigue resistance. They are widely used in aerospace, automobile industry, machinery manufacturing, sports and leisure and other fields.

[0003] At present, the transmission connecting rod is made of metal material, which is relatively heavy. Weight reduction accounts for a large proportion in lightweight design. After composite design and production using composite materials according to requirements, it can be reduced by more than 50%. Diversified designs of materials and structures can also be carried out to meet the actual use needs in different environments and different stress conditions.

[0004] Therefore, there is an urgent need for a composite structure of metal connecting rod mechanism parts and a preparation method thereof to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a composite structure of a metal connecting rod mechanism part and a preparation method thereof, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a composite structure of metal connecting rod mechanism parts, comprising:

[0007] a first reinforcement block and a second reinforcement block, wherein the first reinforcement block and the second reinforcement block are arranged in parallel;

[0008] A connecting reinforcement frame, fixedly connected between the first reinforcement blocks and the second reinforcement blocks;

[0009] A filling piece, arranged in the connection reinforcement frame, and used to fill the connection reinforcement frame;

[0010] A first coating layer, coating the overall structure consisting of the first reinforcement block, the second reinforcement block and the connection reinforcement frame;

[0011] The protection component includes a plurality of anti-wear parts. Both ends of the first reinforcement block and the second reinforcement block are provided with mounting holes, and the anti-wear parts are arranged in the mounting holes.

[0012] According to a composite structure of a metal connecting rod mechanism part provided by the present invention, the filling piece includes filling foam.

[0013] According to a composite structure of a metal connecting rod mechanism part provided by the present invention, the anti-wear component includes a bushing, and the bushing is installed in the installation hole.

[0014] According to a composite structure of a metal connecting rod mechanism part provided by the present invention, a second coating layer is provided on the filling foam.

[0015] According to a composite structure of a metal linkage mechanism part provided by the present invention, the first reinforcement block and the second reinforcement block include a composite block and a third cladding layer arranged on the composite block.

[0016] According to a composite structure of a metal connecting rod mechanism part provided by the present invention, the first covering layer, the second covering layer and the third covering layer are all double-layer carbon fiber cloth.

[0017] A method for preparing a composite structure of a metal connecting rod mechanism part comprises the following steps:

[0018] Separately prepare a first reinforcement block, a second reinforcement block, a connection reinforcement frame, a filling piece, and an anti-wear piece;

[0019] Assemble the prepared first reinforcement block, second reinforcement block and connection reinforcement frame, fill the filling piece in the connection reinforcement frame, and install the anti-wear piece on the first reinforcement block and the second reinforcement block;

[0020] The assembled structure is coated with a first coating layer, which is then cured.

[0021] According to a method for preparing a composite structure of a metal linkage mechanism part provided by the present invention, the first reinforcement block, the second reinforcement block and the connection reinforcement frame are all prepared by curing carbon fiber prepreg.

[0022] Compared with the prior art, the present invention has the following advantages and technical effects:

[0023] The present invention provides a composite structure of metal connecting rod mechanism parts and a preparation method thereof, wherein the first reinforcing block, the second reinforcing block, the connecting reinforcing frame, the filling piece and the anti-wear piece are all separate composite material parts. After preparation, the first reinforcing block, the second reinforcing block and the connecting reinforcing frame are assembled into an integral structure, and separate filling pieces are filled in the connecting reinforcing frame, the anti-wear piece is installed on the first reinforcing block and the second reinforcing block, and the first coating layer is coated on the integral structure for curing to form a final product, thereby ensuring the overall structural strength, while reducing the weight and shortening the normal production cycle. The present application forms the metal connecting rod mechanism parts separately, which can realize simultaneous production, a short manufacturing cycle, a weight reduction of the overall structure, light weight of the parts, high strength, and corrosion resistance, so that the metal connecting rod mechanism parts have the advantages of light weight, short production cycle, and high strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0025] Figure 1 is an axonometric view of the present invention;

[0026] Figure 2 It is a front view of the present invention;

[0027] Figure 3 is a cross-sectional view of the present invention;

[0028] Among them, 1. the first reinforcement block; 2. the second reinforcement block; 3. the connecting reinforcement frame; 4. the filling foam; 5. the first covering layer; 6. the bushing. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-Figure 3 The present invention provides a composite structure of metal connecting rod mechanism parts, including:

[0032] A first reinforcement block 1 and a second reinforcement block 2, wherein the first reinforcement block 1 and the second reinforcement block 2 are arranged in parallel;

[0033] A connecting reinforcement frame 3 is fixedly connected between the two first reinforcement blocks 1 and the second reinforcement block 2;

[0034] A filling piece, arranged in the connection reinforcement frame 3, and used to fill the connection reinforcement frame 3;

[0035] A first coating layer 5, coating the overall structure consisting of the first reinforcement block 1, the second reinforcement block 2 and the connecting reinforcement frame 3;

[0036] The protection component comprises a plurality of anti-wear parts. Both ends of the first reinforcement block 1 and the second reinforcement block 2 are provided with mounting holes, and the anti-wear parts are arranged in the mounting holes.

[0037] In one embodiment of the present invention, the first reinforcement block 1, the second reinforcement block 2, the connecting reinforcement frame 3, the filling piece and the anti-wear piece are all separate composite material parts. After preparation, the first reinforcement block 1, the second reinforcement block 2, and the connecting reinforcement frame 3 are assembled into an integral structure, and the separate filling piece is filled in the connecting reinforcement frame 3, the anti-wear piece is installed on the first reinforcement block 1 and the second reinforcement block 2, and the first coating layer is coated on the overall structure for curing to form a final product, thereby ensuring the overall structural strength, reducing the weight, and shortening the normal production cycle.

[0038] As an optional implementation, the filling piece includes filling foam 4 .

[0039] In one embodiment of the present invention, the filling foam 4 is provided to ensure the overall strength of the structure while reducing the overall weight. The filling foam 4 can be selected from foams of different densities according to changes in the product's use load, thereby making its strength and weight reduction flexible and meeting requirements under various conditions.

[0040] As an optional embodiment, the anti-wear component includes a bushing 6, and the bushing 6 is installed in the installation hole.

[0041] In one embodiment of the present invention, the bushing 6 is made of metal and is installed in the mounting hole. The bushing 6 is set to achieve precision and wear resistance of the mounting hole, ensure smooth installation with other parts and increase the frequency of use of the parts.

[0042] As an optional implementation, a second covering layer is provided on the filling foam 4 .

[0043] In one embodiment of the present invention, the strength of the filling foam is ensured by providing a second coating layer on the filling foam 4, and two layers of carbon fiber cloth are laid on the outer surface of the filling foam 4 to strengthen the filling foam 4 and make it more firmly bonded to the surrounding composite parts, thereby improving the overall strength of the product.

[0044] As an optional implementation, the first reinforcement block 1 and the second reinforcement block 2 include a composite material block and a third cladding layer arranged on the composite material block.

[0045] In one embodiment of the present invention, the first reinforcement block 1 and the second reinforcement block 2 are composed of a composite material block and a third coating layer, and these parts are combined into one by using adhesive film and structural adhesive to increase the overall strength of the parts.

[0046] As an optional implementation, the first covering layer 5, the second covering layer and the third covering layer are all double-layer carbon fiber cloth.

[0047] In one embodiment of the present invention, a double layer of carbon fiber cloth is provided for covering to ensure the overall structural strength. The covering layer can be appropriately increased in muscle and corrosion-resistant materials can be used for the covering layer according to the actual load requirements and the actual use environment requirements.

[0048] A method for preparing a composite structure of a metal connecting rod mechanism part comprises the following steps:

[0049] Separately prepare the first reinforcement block 1, the second reinforcement block 2, the connection reinforcement frame 3, the filling piece and the anti-wear piece;

[0050] Assemble the prepared first reinforcement block 1, the second reinforcement block 2 and the connection reinforcement frame 3, fill the filling piece in the connection reinforcement frame 3, and install the anti-wear piece on the first reinforcement block 1 and the second reinforcement block 2;

[0051] The assembled structure is coated with a first coating layer 5, which is then cured.

[0052] As an optional implementation, the first reinforcement block 1, the second reinforcement block 2 and the connection reinforcement frame 3 are all prepared by curing carbon fiber prepreg.

[0053] In the present application, the first reinforcement block 1 and the second reinforcement block 2 are composed of a prefabricated composite block and a third coating layer. The prefabricated composite block is paved on a molding mold using carbon fiber prepreg according to the plying order of the drawing and then cured. After curing, the shape accuracy is ensured by machining. The prefabricated composite block after machining is again wrapped with carbon fiber prepreg and paved and cured according to the plying order of the drawing. After curing, the installation hole position is machined out and the bushing 6 is embedded in the first reinforcement block 1 and the second reinforcement block 2 using an interference fit process method; the connecting reinforcement frame 3 is paved on the positive mold molding mold and paved using carbon fiber prepreg according to the order of the drawing and then cured; the filling foam 4 is machined to ensure dimensional accuracy, and then two layers of carbon fiber prepreg cloth are paved on the foam surface as a whole for curing, and the above components are formed separately.

[0054] Put the first reinforcement block 1, the second reinforcement block 2, the connection reinforcement frame 3 and the filling foam 4 which have been formed respectively, on the tooling for assembly. Now, the first reinforcement block 1 and the second reinforcement block 2 are positioned and fixed by using the positioning on the tooling, and then the connection reinforcement frame 3 is installed and fixed by installing the positioning position. Before installation and fixation, the surface of the connection reinforcement frame 3 is paved with adhesive film and structural adhesive, and it is bonded and fixed to the left and right reinforcement frames. Then, the filling foam 4 is placed in the connection reinforcement frame 3 for overall reinforcement. Before the filling foam 4 is placed, the structural adhesive is applied to the mating surface of the connection reinforcement frame 3, so that it is bonded and fixed to the connection reinforcement frame 3. Finally, after the assembly is completed, the carbon fiber prepreg cloth is laid according to the laying order of the drawing. After completion, several layers of glass fiber are laid on the surface for protection, and it is cured after laying.

[0055] Working principle of the present invention:

[0056] The present invention is composed of a first reinforcing block 1, a second reinforcing block 2, a connecting reinforcing frame 3, a filling foam 4, and a first coating layer 5. All parts used are composite parts, which are laid and cured according to the drawing size and the laying order. The first reinforcing block 1 and the second reinforcing block 2 are positioned and fixed through the required mounting holes by the positioning tool to ensure the position accuracy of the mounting holes. Then, the connecting reinforcing frame 3 and the mounting surfaces of the first reinforcing block 1 and the second reinforcing block 2 are pasted with adhesive film and structural adhesive and then placed in the positioning tool, connected and fixed with the first reinforcing block 1 and the second reinforcing block 2. The filling foam 4 is integrally coated and cured with carbon fiber prepreg and then filled into the connecting reinforcing frame 3. After these parts are firmly bonded, they are integrally coated. After the integral coating, they are put into the autoclave for curing to form the final product.

[0057] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A composite structure of metal connecting rod mechanism parts, characterized in that: include: A first reinforcing block (1) and a second reinforcing block (2), wherein the first reinforcing block (1) and the second reinforcing block (2) are arranged in parallel; A connecting reinforcement frame (3) fixedly connected between the two first reinforcement blocks (1) and the second reinforcement blocks (2); A filling piece, arranged in the connection reinforcement frame (3) and used to fill the connection reinforcement frame (3); A first coating layer (5) coating the overall structure consisting of the first reinforcement block (1), the second reinforcement block (2) and the connection reinforcement frame (3); The protective component comprises a plurality of anti-wear parts. Both ends of the first reinforcement block (1) and the second reinforcement block (2) are provided with mounting holes, and the anti-wear parts are arranged in the mounting holes.

2. The composite structure of a metal connecting rod mechanism part according to claim 1, characterized in that: The filling element comprises filling foam (4).

3. The composite structure of a metal connecting rod mechanism part according to claim 1, characterized in that: The anti-wear component comprises a bushing (6), and the bushing (6) is installed in the installation hole.

4. The composite structure of a metal connecting rod mechanism part according to claim 2, characterized in that: A second covering layer is arranged on the filling foam (4).

5. The composite structure of metal connecting rod mechanism parts according to claim 4, characterized in that: The first reinforcement block (1) and the second reinforcement block (2) comprise a composite material block and a third coating layer arranged on the composite material block.

6. The composite structure of metal connecting rod mechanism parts according to claim 5, characterized in that: The first covering layer (5), the second covering layer and the third covering layer are all double-layer carbon fiber cloth.

7. A method for preparing a composite structure of a metal connecting rod mechanism part, applicable to the composite structure of a metal connecting rod mechanism part according to claim 1, characterized in that: The following steps are involved: Separately prepare a first reinforcement block (1), a second reinforcement block (2), a connection reinforcement frame (3), a filling piece and an anti-wear piece; Assembling the prepared first reinforcement block (1), the second reinforcement block (2) and the connection reinforcement frame (3), filling the filling piece in the connection reinforcement frame (3), and installing the anti-wear piece on the first reinforcement block (1) and the second reinforcement block (2); The assembled structure is coated with a first coating layer (5), which is then cured.

8. The method for preparing a composite structure of a metal connecting rod mechanism part according to claim 7, characterized in that: The first reinforcement block (1), the second reinforcement block (2) and the connection reinforcement frame (3) are all prepared by curing carbon fiber prepreg.

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