A high-strength irregular-shaped reinforcing bracket for subframe

Abstract

This utility model relates to the field of automotive manufacturing technology, and in particular to a high-strength irregular-shaped reinforcing bracket for a subframe. It includes two main support arms, each with a transverse connecting bolt threaded to its upper front and upper rear ends. The two main support arms are connected to a lateral reinforcing beam structure via two transversely distributed connecting bolts. Two lateral reinforcing beam structures are also provided, with two fixing bolts threaded to the upper middle portion of each of the two main support arms. This high-strength irregular-shaped reinforcing bracket for a subframe connects the main support arms, lateral reinforcing beam structures, and central load-bearing frame structure using bolts, overcoming the limitations of traditional welding processes. This allows for rapid replacement of partially damaged subframes, cross-model structural reuse, and balances high-strength load-bearing capacity with economical maintenance.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a high-strength irregular-shaped reinforcing bracket for a subframe. Background Technology

[0002] As a core component of the automotive chassis, the subframe must withstand complex dynamic loads. Traditional flat or simple structural supports have significant limitations in handling high-intensity conditions. With the increasing emphasis on automotive lightweighting and safety standards, higher requirements are placed on the strength, lightweighting, and ease of maintenance of subframe reinforcement supports. Irregular structure designs significantly improve load-bearing capacity by optimizing stress distribution. However, existing traditional welding processes result in non-disassembly of the structure, requiring replacement of the entire structure if local damage occurs, leading to long maintenance cycles and high costs. Furthermore, the contradiction between the specialization and versatility of irregular structures is prominent, making it difficult to meet the adaptation needs of multiple vehicle models, thus becoming a technical bottleneck in the industry. Utility Model Content

[0003] The main objective of this invention is to provide a high-strength, irregularly shaped reinforcing bracket for a subframe, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-strength irregular-shaped reinforcing bracket for a subframe includes two main support arms. The upper front and upper rear portions of both main support arms are threadedly connected to transverse connecting bolts. The two main support arms are threadedly connected to a lateral reinforcing beam structure via two transversely distributed transverse connecting bolts. Two lateral reinforcing beam structures are also provided. The upper middle portions of both main support arms are threadedly connected to two fixing bolts. The two main support arms are threadedly connected to a central load-bearing frame structure via four fixing bolts. The central load-bearing frame structure is located between the two lateral reinforcing beam structures.

[0006] Preferably, the lateral reinforcing beam structure includes a crossbeam body, and connecting lugs are fixedly connected to the left and right front ends of the crossbeam body, with through bolt holes opened at the upper ends of the two connecting lugs.

[0007] Preferably, the two lateral reinforcing beam structures are distributed in a front-to-back mirror image configuration, and the main body of the crossbeam is inserted into the two main support arms through two connecting lugs.

[0008] Preferably, the two horizontally distributed bolt holes correspond to the positions of the two horizontally distributed connecting bolts, and the two horizontally distributed connecting lugs are detachably connected to the two main support arms through the two horizontally distributed bolt holes and the two horizontally distributed connecting bolts.

[0009] Preferably, the central support frame structure includes two support beams. Each of the two support beams has a mounting boss fixedly connected to its left and right ends, which are close to each other. Each of the four mounting bosses has a through-hole fixing screw. Reinforcing blocks are inserted and fixedly connected between the left and right ends of the two support beams. Two longitudinally distributed reinforcing blocks are jointly fixedly connected to a shaped connecting pipe at their lower ends. Two shaped connecting pipes are provided, and a central reinforcing component assembly is inserted and fixedly connected between the two shaped connecting pipes at their center.

[0010] Preferably, the two load-bearing crossbeams are respectively inserted into the two main support arms through two mounting bosses, and the two load-bearing crossbeams are located inside the two crossbeam bodies.

[0011] Preferably, the four mounting bosses are detachably connected to the two main support arms via four fixing screw holes and four fixing bolts.

[0012] Preferably, the central reinforcing component includes two fixing blocks. Each fixing block has a through mounting hole on its outer surface. An arc-shaped fixing tube is fixedly connected to the upper part of the two fixing blocks. A load transfer mounting seat is inserted and fixedly connected to the middle of the outer surface of the arc-shaped fixing tube.

[0013] Preferably, the two fixing blocks are fixedly connected to the two irregularly shaped connecting pipes through two assembly holes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In this utility model, the connecting ear plates at both ends of the crossbeam body are inserted into the main support arm, and the bolt holes and transverse connecting bolts are detachably fixed to form a stable frame structure, effectively dispersing the transverse load and enhancing the lateral stiffness. The front and rear mirror distribution design ensures uniform load transfer and avoids stress concentration, thus breaking through the limitations of traditional welding. When a local damage occurs, a specific module can be quickly disassembled and replaced, significantly shortening the maintenance cycle. The standardized bolt hole interface allows the main support arm to be reused across vehicle models, reducing design and manufacturing costs. The detachable connection avoids welding stress concentration and improves the fatigue life of the structure. Through structural innovation, this design takes into account both the adaptability of high-strength irregular structures and the economy of modular maintenance, providing a solution for the lightweighting and performance optimization of the subframe.

[0016] 2. In this utility model, two load-bearing crossbeams are detachably connected to the main support arm via mounting bosses, forming a stable central support structure that effectively bears the vertical load and distributes it to both sides. The frame formed by the reinforcing block and the irregular connecting tube enhances the structural rigidity, adapts to complex spatial layouts, and optimizes stress paths. The arc-shaped fixing tube of the central reinforcing component and the load transfer mounting seat further enhance load transfer efficiency. The irregular design evenly distributes the concentrated load to the entire bracket, thereby achieving lightweight while maintaining high strength. In addition, the detachable feature allows only the damaged module to be replaced during maintenance. The standardized interface allows the main support arm to be reused across vehicle models, reducing development and maintenance costs. The overall design takes into account structural strength, spatial adaptability, and economy, providing an efficient load management solution for the subframe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-strength irregular-shaped reinforcing bracket for a subframe according to the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the lateral reinforcing beam of a high-strength irregularly shaped reinforcing bracket for a subframe according to the present invention;

[0019] Figure 3 This is a schematic diagram of the central support frame structure of a high-strength irregular-shaped reinforcing bracket for a subframe according to the present invention.

[0020] Figure 4 This is a schematic diagram of the overall structure of the central reinforcing component of a high-strength irregular-shaped reinforcing bracket for a subframe according to this utility model.

[0021] In the diagram: 1. Main support arm; 2. Lateral connecting bolts; 3. Lateral reinforcing beam structure; 4. Fixing bolts; 5. Central load-bearing frame structure; 31. Main body of the crossbeam; 32. Connecting ear plate; 33. Bolt hole; 51. Load-bearing crossbeam; 52. Mounting boss; 53. Fixing screw hole; 54. Reinforcing block; 55. Irregular connecting pipe; 56. Central reinforcing component assembly; 561. Fixing block; 562. Assembly hole; 563. Arc-shaped fixing pipe; 564. Load transfer mounting base. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-4 This utility model provides a technical solution:

[0026] A high-strength irregular-shaped reinforcing bracket for a subframe includes two main support arms 1. The upper front and upper rear ends of the two main support arms 1 are threadedly connected with transverse connecting bolts 2. The two main support arms 1 are threadedly connected to a lateral reinforcing beam structure 3 through the two transversely distributed transverse connecting bolts 2. There are two lateral reinforcing beam structures 3. The upper middle ends of the two main support arms 1 are threadedly connected with two fixing bolts 4. The two main support arms 1 are threadedly connected to a central load-bearing frame structure 5 through the four fixing bolts 4. The central load-bearing frame structure 5 is located between the two lateral reinforcing beam structures 3.

[0027] In this embodiment, the lateral reinforcing beam structure 3 includes a crossbeam body 31. The front left and front right ends of the crossbeam body 31 are fixedly connected to connecting lugs 32. The upper ends of the two connecting lugs 32 are provided with through bolt holes 33. The two lateral reinforcing beam structures 3 are distributed in a front-to-back mirror image. The crossbeam body 31 is inserted into the two main support arms 1 through the two connecting lugs 32. The two bolt holes 33 distributed laterally correspond to the positions of the two lateral connecting bolts 2. The two connecting lugs 32 distributed laterally are detachably connected to the two main support arms 1 through the two lateral bolt holes 33 and the two lateral connecting bolts 2.

[0028] Through the above scheme: the connecting ear plates 32 at both ends of the main beam 31 are detachably fixed to the main support arm 1 through bolt holes 33 and transverse connecting bolts 2. The two lateral reinforcing beam structures 3 are distributed in a front-to-back mirror image and inserted into the main support arm 1 to form a stable frame structure. When a local damage occurs, the lateral reinforcing beam structure 3 can be separated by simply removing the transverse connecting bolts 2, without the need to replace the entire subframe. Therefore, the modular design allows maintenance to only require replacing the damaged module, such as the lateral reinforcing beam structure 3, shortening the maintenance cycle. In addition, the detachable connection avoids welding stress concentration and improves the fatigue life of the structure. Furthermore, the standardized interface bolt holes 33 allow the main support arm 1 to be reused across vehicle models, reducing design and manufacturing costs. Thus, through structural innovation, the limitations of traditional processes are broken, taking into account both strength and maintenance economy.

[0029] In this embodiment, the central support frame structure 5 includes two support beams 51. Each support beam 51 has a mounting boss 52 fixedly connected to its left and right ends, with through screw holes 53 at the upper ends. Reinforcing blocks 54 are inserted and fixedly connected between the left and right ends of the two support beams 51. Two longitudinally distributed reinforcing blocks 54 are jointly fixedly connected to their lower ends by a shaped connecting pipe 55. Two shaped connecting pipes 55 are provided, and a central reinforcing component assembly 56 is inserted and fixedly connected between the two shaped connecting pipes 55 at their center. The two support beams 51 are respectively connected to the two mounting bosses 52 by inserting them into the two support beams 51. Inside each main support arm 1, two load-bearing crossbeams 51 are located inside the two crossbeam bodies 31. Four mounting bosses 52 are detachably connected to the two main support arms 1 through four fixing screw holes 53 and four fixing bolts 4. The central reinforcing component 56 includes two fixing blocks 561. Each fixing block 561 has a through mounting hole 562 on its outer surface. An arc-shaped fixing tube 563 is fixedly connected to the upper part of the two fixing blocks 561. A load transfer mounting seat 564 is inserted and fixedly connected to the middle of the outer surface of the arc-shaped fixing tube 563. The two fixing blocks 561 are fixedly connected to two irregular connecting tubes 55 through two mounting holes 562 respectively.

[0030] Through the above scheme: the two load-bearing crossbeams 51 are detachably connected to the main support arm 1 through the mounting boss 52 and fixing screw holes 53, forming a standardized connection interface. The frame structure formed by the reinforcing block 54 and the irregular connecting tube 55 provides differentiated spatial adaptability. The arc-shaped fixing tube 563 and the load transfer mounting seat 564 of the central reinforcing component 56 are optimized for specific vehicle models. When applied to different vehicle models, the main support arm 1 remains unchanged as a general basic module. Only the geometric parameters of the irregular connecting tube 55 and the central reinforcing component 56 in the central load-bearing frame structure 5 need to be adjusted. Quick adaptation is achieved through the assembly hole 562 of the fixing block 561. By balancing structural reuse and local customization, the application limitations of irregular structures are overcome.

[0031] It should be noted that this utility model is a high-strength irregular-shaped reinforcing bracket for a subframe. In use, firstly, the main support arm 1 serves as the basic structure, and is detachably fixed to the connecting lugs 32 of the lateral reinforcing beam structure 3 via transverse connecting bolts 2, forming a stable lateral support frame. The crossbeam bodies 31 of the two lateral reinforcing beam structures 3 are distributed in a front-to-back mirror image. Through the cooperation of bolt holes 33 and transverse connecting bolts 2, the lateral load is evenly transferred to the main support arm 1. The load-bearing crossbeam 51 of the central load-bearing frame structure 5 is connected to the main support arm 1 via mounting bosses 52 and fixing screw holes 53, bearing the vertical load and distributing it to both sides. The reinforcing blocks 54 and irregular-shaped connecting tubes 55 enhance structural rigidity. The arc of the central reinforcing component assembly 56... The shaped fixing tube 563 and load transfer mounting seat 564 further optimize the stress path. Through the assembly hole 562 of the fixing block 561 and the shaped connecting tube 55 working together, the concentrated load is distributed to the entire bracket. When a local area is damaged, only the corresponding transverse connecting bolt 2 and fixing bolt 4 need to be removed to replace specific modules such as the lateral reinforcing beam structure 3 or the central load-bearing frame structure 5, without the need for overall replacement. This design achieves cross-vehicle adaptation through standardized interfaces, namely bolt holes 33 and fixing screw holes 53, while maintaining the strength advantage of the shaped structure. Thus, the overall components can be used in a coordinated manner, solving the problem of high maintenance costs of traditional welded brackets. Furthermore, the standardized connection interface breaks through the bottleneck of poor versatility of shaped structures, taking into account both high strength and economy.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength profiled reinforcement bracket for a subframe, comprising a main support arm (1), characterized in that: The main support arm (1) is provided with two, the upper end front and the upper end rear of the two main support arms (1) are movably connected with transverse connecting bolts (2), and the two main support arms (1) are movably connected with lateral strengthening beam structures (3) through two transversely distributed transverse connecting bolts (2), the lateral strengthening beam structures (3) are provided with two, the upper middle part of the two main support arms (1) is movably connected with two fixed bolts (4), and the two main support arms (1) are movably connected with central bearing frame structures (5) through four fixed bolts (4), and the central bearing frame structures (5) are located between the two lateral strengthening beam structures (3). The lateral strengthening beam structure (3) comprises a beam body (31), and the front left and right parts of the beam body (31) are fixedly connected with connecting ear plates (32), and the upper ends of the two connecting ear plates (32) are provided with bolt holes (33) penetrating through.

2. The high-strength special-shaped reinforcing support for a subframe according to claim 1, characterized in that: The two lateral strengthening beam structures (3) are distributed in front and back mirror image, and the beam body (31) is inserted into the two main support arms (1) through the two connecting ear plates (32).

3. The high-strength profiled reinforcement bracket for a subframe according to claim 1, characterized in that: The two bolt holes (33) are respectively corresponding to the positions of the two transverse connecting bolts (2), and the two connecting ear plates (32) are respectively detachably connected with the two main support arms (1) through the two bolt holes (33) and the two transverse connecting bolts (2).

4. The high-strength profiled reinforcement bracket for a subframe according to claim 1, characterized in that: The central bearing frame structure (5) comprises a bearing beam (51), the bearing beam (51) is provided with two, and the left and right ends of the two bearing beams (51) close to each other are fixedly connected with mounting bosses (52), the upper ends of the four mounting bosses (52) are provided with fixed screw holes (53) penetrating through, the left and right parts between the two bearing beams (51) are fixedly connected with reinforcing blocks (54), and the lower ends of the two reinforcing blocks (54) are fixedly connected with special-shaped connecting pipes (55).

5. The high-strength profiled reinforcement bracket for a subframe according to claim 4, characterized in that: The two bearing beams (51) are respectively inserted into the two main support arms (1) through the two mounting bosses (52), and the two bearing beams (51) are located on the inner sides of the two beam bodies (31).

6. The high-strength profiled reinforcement bracket for a subframe according to claim 4, characterized by: The four mounting bosses (52) are detachably connected with the two main support arms (1) through the four fixed screw holes (53) and the four fixed bolts (4).

7. The high-strength profiled reinforcement bracket for a subframe according to claim 4, characterized in that: The central reinforcing component assembly (56) comprises a fixed block (561), the fixed block (561) is provided with two, the outer surfaces of the two fixed blocks (561) are provided with assembly holes (562) penetrating through, the upper parts of the two fixed blocks (561) are fixedly connected with arc-shaped fixed pipes (563), and the outer surfaces of the arc-shaped fixed pipes (563) are fixedly connected with load transmission mounting seats (564).

8. The high-strength profiled reinforcement bracket for a subframe according to claim 7, characterized in that: Two said fixed blocks (561) are fixedly connected with two special-shaped connecting pipes (55) through two assembling holes (562) respectively.

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