Automobile auxiliary frame mounting hole reinforcing structure

Abstract

The utility model discloses an automobile auxiliary frame installation hole reinforcing structure which is installed in an automobile body longitudinal beam and comprises a first reinforcing piece and a second reinforcing piece, turnups are arranged on the multiple edges of the first reinforcing piece and welded to the interior of the automobile body longitudinal beam, an installation hole is formed in the upper surface of the first reinforcing piece, and the installation hole is formed in the lower surface of the second reinforcing piece. The second reinforcer is arranged at the bottom of the first reinforcer, a plurality of edges of the second reinforcer form turned-over edges, and the turned-over edges are welded to the vehicle body longitudinal beam and the first reinforcer. Effective support is provided at the mounting hole of the auxiliary frame through the first reinforcing piece, the second reinforcing piece and the flanging, the dynamic stiffness of the mounting hole of the auxiliary frame can be effectively improved, vibration transmitted to a vehicle body through the mounting hole of the auxiliary frame is reduced, the problem that comfort is reduced due to noise vibration of the vehicle is solved, and the service life of the vehicle is prolonged. And the use experience is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a reinforced structure for automotive subframe mounting holes. Background Technology

[0002] With the continuous improvement of domestic residents' income level, consumers' requirements for automobile quality are showing a trend of refinement. Among them, the noise and vibration (NVH) performance of vehicles, as an important indicator that directly affects users' subjective feelings, is receiving more and more attention.

[0003] During vehicle operation, as road excitation is transmitted to the vehicle body through the suspension system, the subframe, as the core load-bearing component of the suspension system, has its mounting holes on the vehicle's longitudinal beams becoming a critical force transmission path. Currently, in most cars, the subframe is directly bolted to the longitudinal beams. When the dynamic stiffness of the subframe mounting holes is insufficient, road excitation energy will form a low-impedance transmission channel through this weak point, resulting in noticeable booming noises in the vehicle body structure. Simultaneously, it increases the vibration amplitude in components such as the steering wheel, seats, and floor, significantly reducing ride comfort and user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a reinforced structure for the mounting holes of an automotive subframe in order to solve the above problems.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A reinforcing structure for mounting holes in a vehicle subframe is installed inside a vehicle body longitudinal beam. It includes: a reinforcing member 1, wherein multiple edges of the reinforcing member 1 are provided with flanges, the flanges are welded to the interior of the vehicle body longitudinal beam, and mounting holes are provided on the upper surface of the reinforcing member 1.

[0007] The second reinforcing member is disposed at the bottom of the first reinforcing member, and multiple edges of the second reinforcing member are formed with flanges, which are welded to the vehicle body longitudinal beam and the first reinforcing member.

[0008] As a further description of the above technical solution, the first reinforcing member is a stamped plate, and the flange is provided on the upper side and both sides of at least one surface of the reinforcing member.

[0009] As a further description of the above technical solution, the first reinforcing member includes a top plate connected to the inner wall of the top of the vehicle body longitudinal beam, and the two sides of the top plate are integrally formed with side plates connected to the side walls of the vehicle body longitudinal beam.

[0010] As a further description of the above technical solution, the second reinforcing member is a stamped plate, and the flange is provided at the four edges of the upper surface of the second reinforcing member.

[0011] As a further description of the above technical solution, the second reinforcing member is a rectangular structure.

[0012] As a further description of the above technical solution, the upper surface of the second reinforcing member is integrally formed with a groove, and the first reinforcing member is connected to the second reinforcing member through the groove.

[0013] As a further description of the above technical solution, the groove is an arc-shaped groove.

[0014] As a further description of the above technical solution, the length of the arc-shaped groove is the same as the length of the second reinforcing member.

[0015] As a further description of the above technical solution, the height of the flange is 10-15mm.

[0016] As a further description of the above technical solution, the first reinforcing member, the second reinforcing member, and the flange are all made of metal.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model provides effective support at the mounting holes of the subframe through reinforcement member one and reinforcement member two, as well as the flange, which can effectively improve the dynamic stiffness of the mounting holes of the subframe, reduce the vibration transmitted to the vehicle body through the mounting holes of the subframe, thereby improving the problem of reduced comfort caused by vehicle noise and vibration, and effectively improving the user experience.

[0019] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the mounting hole reinforcement structure of this utility model and its cooperation with the vehicle body longitudinal beam;

[0021] Figure 2 This is a schematic diagram of the mounting hole reinforcement structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the second reinforcing member in the mounting bracket reinforcement structure of this utility model.

[0023] Reference numerals: 1. Reinforcing component one; 101. Top plate; 102. Side plate; 2. Reinforcing component two; 3. Vehicle longitudinal beam; 4. Mounting hole; 5. Groove; 6. Flanged edge. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figures 1-3 As shown, in one embodiment, a reinforcing structure for a vehicle subframe mounting hole 4 is installed within a vehicle body longitudinal beam 3. Specifically, the mounting hole 4 is installed within the vehicle body longitudinal beam 3, and the specific structure includes:

[0026] The reinforcing member 1 has flanges 6 at multiple edges, which are spot-welded to the inner wall of the vehicle body longitudinal beam 3. Mounting holes 4 are formed on the upper surface of the reinforcing member 1, corresponding to the mounting holes 4 in the vehicle body longitudinal beam 3. By forming bent flanges 6 on the side edges of the reinforcing member 1, the rigidity of the reinforcing member 1 body is effectively improved, while also facilitating the connection between the reinforcing member 1 and the vehicle body longitudinal beam 3.

[0027] Reinforcing component 2 is located at the bottom of reinforcing component 1, and multiple edges of reinforcing component 2 have flanges 6. The flanges 6 are connected to the vehicle body longitudinal beam 3 by spot welding, and reinforcing component 2 is connected to reinforcing component 1 by welding. By forming bent flanges 6 around the four edges of reinforcing component 2, the rigidity of the reinforcing component 2 can be effectively improved, while also facilitating the connection between reinforcing component 2 and the vehicle body longitudinal beam 3 and reinforcing component 1.

[0028] Through the above technical solution, effective support is provided at the mounting hole 4 of the subframe, i.e., the longitudinal beam 3 of the vehicle body, by the reinforcement 1, the reinforcement 2, and the flange 6. This effectively improves the dynamic stiffness of the subframe mounting hole 4 (dynamic stiffness is an important parameter in mechanical engineering used to describe the ability of a structure to resist vibration and deformation under dynamic loads. Under dynamic loads, the dynamic stiffness of a structure is expressed as the ratio of its displacement response to the amplitude of the dynamic excitation force, i.e., the amplitude-frequency characteristic, which directly affects the vibration transmission characteristics of the system), reduces the vibration transmitted to the vehicle body through the subframe mounting hole 4, and thus improves the problem of reduced comfort caused by vehicle noise and vibration, effectively enhancing the user experience.

[0029] In one embodiment, the reinforcing member 1 is a stamped plate, and the flange 6 is disposed on the upper side and both sides of at least one surface of the reinforcing member 1. The flange 6 is integrally bent into shape by the edge of the reinforcing member 1. By disposing the flange 6 on the upper side and both sides of the reinforcing member 1, it is easier to weld the reinforcing member 1 to the top and side walls of the inner wall of the vehicle longitudinal beam 3, thereby improving the strength of the connection between the reinforcing member 1 and the vehicle longitudinal beam 3.

[0030] In one embodiment, the reinforcing member 1 includes a top plate 101 connected to the inner wall of the top of the vehicle body longitudinal beam 3. The top plate 101 has side plates 102 integrally formed on both sides, which are connected to the side walls of the vehicle body longitudinal beam 3. This makes it easier to weld the reinforcing member 1 to the top and side walls of the inner wall of the vehicle body longitudinal beam 3. At the same time, the reinforcing member 1 is also configured as a through-type structure, which makes it easier to connect the mounting hole 4 and the bolt, and is easy to operate.

[0031] In one embodiment, the second reinforcing member 2 is a stamped plate, and the flange 6 is disposed at the four edges of the upper surface of the second reinforcing member 2. By providing the flange 6 around the perimeter, the second reinforcing member 2 can be stably connected to the inner wall of the vehicle body longitudinal beam 3. The second reinforcing member 2 can be rectangular in shape, which facilitates its adaptation to the internal structure of the vehicle body longitudinal beam 3 and the shape of the first reinforcing member 1. In other feasible embodiments, the second reinforcing member 2 can also have other structures, as long as it can ensure adaptation to the inner wall of the vehicle body longitudinal beam 3 and the first reinforcing member 1 and a stable connection.

[0032] In one embodiment, the upper surface of the second reinforcing member 2 is integrally formed with a groove 5, and the first reinforcing member 1 is connected to the second reinforcing member 2 through the groove 5. The groove 5 is an arc-shaped groove 5, and the length of the arc-shaped groove 5 is the same as the length of the second reinforcing member 2 and the first reinforcing member 1. The first reinforcing member 1 is placed vertically in the groove 5 and connected to the second reinforcing member 2 by a welding process to improve the overall rigidity.

[0033] In one embodiment, the height of the flange 6 is 10-15mm, which ensures the connection rigidity with the longitudinal beam 3 of the vehicle body and also facilitates the spot welding process.

[0034] In one embodiment, the first reinforcing member 1, the second reinforcing member 2, and the flange 6 are all made of metal, such as low-alloy high-strength steel, aluminum alloy, or duplex steel, which can effectively improve the strength of the first reinforcing member 1, the second reinforcing member 2, and the flange 6.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reinforcing structure for mounting holes on an automotive subframe, characterized in that, The installation in the vehicle body longitudinal beam, including: reinforcing piece one, the reinforcing piece one multiple edge is provided with flanging, the flanging with the inside of the vehicle body longitudinal beam is welded, the reinforcing piece one upper surface is equipped with mounting hole; Reinforcing piece two, the reinforcing piece two is arranged in the bottom of the reinforcing piece one, and multiple edges of the reinforcing piece two are formed with flanging, and the flanging is welded with the vehicle body longitudinal beam and the reinforcing piece one.

2. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by, The reinforcing piece one is a stamping plate, and the flanging is arranged on the upper side and both sides of at least one side surface of the reinforcing piece one.

3. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by The reinforcing piece one includes a top plate connected to the inner wall of the top of the vehicle body longitudinal beam, and both sides of the top plate are integrally formed with side plates connected to the side walls of the vehicle body longitudinal beam.

4. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by The reinforcing piece two is a stamping plate, and the flanging is arranged on the upper surface of the reinforcing piece two.

5. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by The reinforcing piece two is a rectangular structure.

6. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by The upper surface of the reinforcing piece two is integrally formed with a groove, and the reinforcing piece one is connected to the reinforcing piece two through the groove.

7. The automobile subframe mounting hole reinforcing structure according to claim 6, characterized by The groove is a circular arc groove.

8. The automobile subframe mounting hole reinforcing structure according to claim 7, characterized by The length of the circular arc groove is the same as the length of the reinforcing piece two.

9. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by The height of the flanging is 10-15mm.

10. The automobile subframe mounting hole reinforcing structure according to claim 1, characterized by, The reinforcing piece one, the reinforcing piece two and the flanging are all metal materials.

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