High-strength aluminum alloy die casting structure

Abstract

The utility model discloses a high-strength aluminum alloy die casting structure, which relates to the technical field of die castings and comprises a bottom plate, one end of the bottom plate is fixedly connected with a shaft sleeve, the other end of the bottom plate is fixedly connected with a shaft pressing plate, a rib plate is fixedly connected between one side of the shaft pressing plate and the outer wall of the shaft sleeve, and the bottom surface of the rib plate is fixedly connected with the top surface of the bottom plate. The top face of the shaft pressing plate is provided with a heat dissipation groove, the inner wall of the heat dissipation groove is fixedly connected with a reinforcing plate, the heat dissipation groove is formed in the top face of the shaft pressing plate, the reinforcing plate is fixed to the inner wall of the groove, the reinforcing plate is distributed in a grid shape, the surface heat dissipation area is increased through the heat dissipation groove, and the reinforcing plate makes up for strength loss of a thin-wall structure on the premise that heat dissipation is not affected; compared with a traditional flat plate structure, the heat dissipation efficiency is improved, meanwhile, the bending strength of the shaft pressing plate is improved, the shaft pressing plate is suitable for parts in the high-temperature environment, redundant materials are reduced through the hollowed-out design of the hollowed-out grooves, the reinforcing ribs are distributed in the main stress direction of the bottom plate, the weight of the bottom plate is reduced, and meanwhile the tensile strength is kept unchanged.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, and in particular to a high-strength aluminum alloy die casting structure. Background Technology

[0002] Aluminum alloys, with their advantages of low density, high specific strength, good corrosion resistance, and excellent casting performance, have become ideal materials for achieving lightweight components. In the aerospace field, aircraft have extremely stringent requirements for the weight and strength of components. High-strength aluminum alloy die castings can meet the usage requirements of aerospace components under complex working conditions, helping to achieve lightweight design of aircraft.

[0003] However, in the existing technology, traditional aluminum alloy die castings rely on uniform wall thickness and simple reinforcing rib design, which leads to significant stress concentration, especially at geometric abrupt changes where cracks are prone to occur. Their tensile strength is low, making it difficult to meet high reliability requirements. In order to reduce weight, traditional die castings generally adopt thin-walled designs, but flat or single-cavity structures are prone to buckling deformation when subjected to bending loads. Utility Model Content

[0004] The purpose of this invention is to address the problem that traditional aluminum alloy die castings rely on uniform wall thickness and simple reinforcing rib design, which leads to significant stress concentration, especially at geometric abrupt changes where cracks are prone to occur. Their tensile strength is low, making it difficult to meet high reliability requirements. In order to reduce weight, traditional die castings generally adopt thin-walled designs, but flat or single-cavity structures are prone to buckling deformation when subjected to bending loads. Therefore, this invention proposes a high-strength aluminum alloy die casting structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength aluminum alloy die-casting structure, including a base plate, a bushing fixedly connected to one end of the base plate, a axial pressure plate fixedly connected to the other end of the base plate, a rib fixedly connected between one side of the axial pressure plate and the outer wall of the bushing, the bottom surface of the rib fixedly connected to the top surface of the base plate, a heat dissipation groove provided on the top surface of the axial pressure plate, a reinforcing plate fixedly connected to the inner wall of the heat dissipation groove, a hollow groove provided on the top surface of the base plate, a reinforcing rib fixedly connected to the inner wall of the hollow groove, and a positioning post fixedly connected between the end of the reinforcing rib and the inner wall of the hollow groove.

[0006] Preferably, mounting plates are fixedly connected to the outer walls of both ends of the axial pressure plate, and mounting holes are provided through the outer walls of the mounting plates.

[0007] Preferably, a pad is fixedly connected to the inner wall of the mounting hole.

[0008] Preferably, a slot is provided on the outer wall of the other side of the axial pressure plate.

[0009] Preferably, the inner wall of the bushing has a bearing groove.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, a heat dissipation groove is opened on the top surface of the axial pressure plate, and a reinforcing plate is fixed on the inner wall of the groove. The reinforcing plate is distributed in a grid pattern. The heat dissipation groove increases the surface heat dissipation area. The reinforcing plate compensates for the strength loss of the thin-walled structure without affecting heat dissipation. Compared with the traditional flat plate structure, it improves heat dissipation efficiency and enhances the bending strength of the axial pressure plate. It is suitable for parts in high-temperature environments. The hollow design of the hollow groove reduces redundant material. The reinforcing ribs are distributed along the main stress direction of the bottom plate, reducing the weight of the bottom plate while maintaining the tensile strength.

[0012] 2. In this utility model, the pre-embedded pad is used to buffer the bolt pre-tightening force during installation, avoid cracking of the aluminum alloy body due to stress concentration, reduce the stress around the mounting hole, improve the fatigue resistance of the connection part, and is suitable for reliable installation under vibration conditions. Attached Figure Description

[0013] Figure 1 This utility model provides a three-dimensional structural diagram of a high-strength aluminum alloy die-casting part.

[0014] Figure 2 This utility model provides a side view of a high-strength aluminum alloy die-casting structure.

[0015] Figure 3 This utility model presents a top view of a high-strength aluminum alloy die-casting structure.

[0016] Legend: 1. Base plate; 2. Shaft pressure plate; 3. Mounting plate; 4. Bushing; 5. Heat dissipation groove; 6. Reinforcing plate; 7. Rib plate; 8. Bearing groove; 9. Pad; 10. Mounting hole; 11. Slot; 12. Hollowed-out groove; 13. Reinforcing rib; 14. Positioning post. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1: As Figure 1 - Figure 3As shown, this utility model provides a high-strength aluminum alloy die-casting structure, including a base plate 1, a bushing 4 fixedly connected to one end of the base plate 1, a axial pressure plate 2 fixedly connected to the other end of the base plate 1, a rib 7 fixedly connected between one side of the axial pressure plate 2 and the outer wall of the bushing 4, the bottom surface of the rib 7 fixedly connected to the top surface of the base plate 1, a heat dissipation groove 5 opened on the top surface of the axial pressure plate 2, a reinforcing plate 6 fixedly connected to the inner wall of the heat dissipation groove 5, a hollow groove 12 opened on the top surface of the base plate 1, a reinforcing rib 13 fixedly connected to the inner wall of the hollow groove 12, and a positioning post 14 fixedly connected between the end of the reinforcing rib 13 and the inner wall of the hollow groove 12.

[0020] The specific setup and function of this embodiment are described below. The base plate 1 serves as the basic load-bearing component, and the axial pressure plate 2 is vertically fixed to both ends of the base plate 1, forming a "T-shaped" basic frame. The two are connected by stiffeners 7, with the bottom surface of the stiffeners 7 fixed to the top surface of the base plate 1 and the side surface of the axial pressure plate 2, forming a triangular support structure. This enhances the bending stiffness at the connection between the base plate 1 and the axial pressure plate 2, disperses the stress concentration at the connection due to external loads, reduces the deformation of the structure when subjected to axial or lateral loads, and improves the overall structural stability. A heat dissipation groove 5 is opened on the top surface of the axial pressure plate 2, and a reinforcing plate 6 is fixed to the inner wall of the groove. The heat dissipation groove 5 increases the surface heat dissipation area, and the reinforcing plate 6 compensates for the strength loss of the thin-walled structure without affecting heat dissipation. Compared with the traditional flat plate structure, this improves heat dissipation efficiency and increases the bending strength of the axial pressure plate 2, making it suitable for components in high-temperature environments. The hollow design of the hollow groove 12 reduces redundant material, and the reinforcing ribs 13 are distributed along the main stress direction of the base plate, reducing the weight of the base plate while maintaining the tensile strength.

[0021] Example 2: Figure 1 - Figure 3 As shown, mounting plates 3 are fixedly connected to the outer walls of both ends of the axial pressure plate 2. Mounting holes 10 are opened through the outer walls of the mounting plates 3. Pads 9 are fixedly connected to the inner walls of the mounting holes 10. A slot 11 is opened on the outer wall of the other side of the axial pressure plate 2. A bearing groove 8 is opened on the inner wall of the bushing 4.

[0022] The overall effect of this embodiment is that the pad 9 is made of high-strength engineering plastic or rubber material and is pre-embedded in the mounting hole 10 to buffer the bolt pre-tightening force during installation, prevent the aluminum alloy body from cracking due to stress concentration, reduce the stress around the mounting hole 10, improve the fatigue resistance of the connection part, and is suitable for reliable installation under vibration conditions.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-strength aluminum alloy die-casting structure, comprising a base plate (1), characterized in that: One end of the base plate (1) is fixedly connected to a bushing (4), and the other end of the base plate (1) is fixedly connected to a axial pressure plate (2). A stiffening plate (7) is fixedly connected between one side of the axial pressure plate (2) and the outer wall of the bushing (4). The bottom surface of the stiffening plate (7) is fixedly connected to the top surface of the base plate (1). A heat dissipation groove (5) is opened on the top surface of the axial pressure plate (2). A reinforcing plate (6) is fixedly connected to the inner wall of the heat dissipation groove (5). A hollow groove (12) is opened on the top surface of the base plate (1). A reinforcing rib (13) is fixedly connected to the inner wall of the hollow groove (12). A positioning post (14) is fixedly connected between the end of the reinforcing rib (13) and the inner wall of the hollow groove (12).

2. The high-strength aluminum alloy die-casting structure according to claim 1, characterized in that: Mounting plates (3) are fixedly connected to the outer walls of both ends of the axial pressure plate (2), and mounting holes (10) are opened through the outer walls of the mounting plates (3).

3. The high-strength aluminum alloy die-casting structure according to claim 2, characterized in that: A pad (9) is fixedly connected to the inner wall of the mounting hole (10).

4. The high-strength aluminum alloy die-casting structure according to claim 1, characterized in that: A slot (11) is provided on the outer wall of the other side of the axial pressure plate (2).

5. The high-strength aluminum alloy die-casting structure according to claim 1, characterized in that: The inner wall of the bushing (4) is provided with a bearing groove (8).

Images