Automobile front suspension beam structure

Abstract

The utility model discloses a kind of automobile front suspension beam structure, it is related to automobile parts technical field, to solve the problem of traditional beam and plate spring connection positioning difference, easy to loosen. It includes beam body, beam body contains straight beam part and two end bent beam part, and connecting cylinder is equipped at the two ends of bent beam part;The top surface of the two ends of straight beam part is equipped with connecting square plate, and connecting square plate and straight beam part are equipped with boss, and boss is equipped with connecting hole, and connecting square plate is equipped with positioning recess and positioning hole. Straight beam part and bent beam part are equipped with contour reinforcing rib, and diagonal reinforcing rib and weight-reducing hole are equipped between straight beam part contour reinforcing rib;Boss is equipped with step hole, and connecting reinforcing rib is equipped between boss, and bent beam part and connecting cylinder joint are equipped with reinforcing protrusion. The structure can improve the positioning accuracy and stability of plate spring connection, and consider strength and light weight, adapt to commercial vehicle demand.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a front suspension crossbeam structure for automobiles. Background Technology

[0002] The front suspension crossbeam is a crucial component of a car's suspension system, connecting the front wheels to the axle and playing multiple roles. First, it transmits power and supports the vehicle's weight. Second, it absorbs road vibrations, providing stable driving performance and a comfortable ride.

[0003] However, existing technologies still have significant shortcomings, such as:

[0004] Traditionally, the connection between the crossbeam and the leaf spring is mostly a planar contact, lacking a dedicated positioning structure. During assembly, the leaf spring is prone to lateral displacement or loose fit, resulting in uneven force distribution. Long-term use may lead to loosening of the connection and even affect the stability of the suspension system. Utility Model Content

[0005] The purpose of this invention is to provide a front suspension crossbeam structure for automobiles to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A front suspension crossbeam structure for automobiles includes a crossbeam body, which comprises a straight beam portion and curved beam portions at both ends. Connecting cylinders are fixedly installed at both ends of the curved beam portion for connection with vehicle bearing seats. Connecting square plates are fixedly installed on the top surfaces of both ends of the straight beam portion. Several bosses are fixedly installed between the connecting square plates and the straight beam portion. Through connecting holes are opened on the bosses. Positioning grooves are opened on the connecting square plates, and positioning holes are opened in the positioning grooves.

[0008] Preferably, both the straight beam and the curved beam are fixedly provided with contour reinforcing ribs that match the outer contour of the beam body.

[0009] Preferably, a plurality of oblique reinforcing ribs are fixedly provided between the contour reinforcing ribs located in the straight beam portion.

[0010] Preferably, the straight beam has several weight-reducing holes, which are located between the gaps formed by several oblique reinforcing ribs.

[0011] Preferably, the boss has a stepped hole, and the stepped hole is coaxial with the connecting hole.

[0012] Preferably, connecting reinforcing ribs are fixedly provided between the bosses.

[0013] Preferably, a reinforcing protrusion is fixedly provided at the joint between the curved beam and the connecting cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The connecting square plate is milled to form a rectangular positioning groove that matches the leaf spring. Combined with the positioning hole and positioning pin, it can quickly and accurately position the leaf spring, ensuring a tight fit between the leaf spring and the connecting square plate. The stepped hole on the boss is coaxial with the connecting hole, allowing the bolt head to be embedded, enhancing connection stability and reducing the risk of loosening. The overall connection structure balances positioning accuracy and assembly convenience, improving assembly efficiency on the production line.

[0016] 2. The weight-reducing holes in the straight beam are located between the gaps of the diagonal reinforcing ribs. This effectively reduces the overall weight of the crossbeam body without weakening the structural strength of the reinforcing ribs, achieving a lightweight design. At the same time, the cast-in-one boss and connecting reinforcing ribs strengthen the connection between the connecting square plate and the straight beam, meeting the dual requirements of commercial vehicles for "high strength and low weight" of suspension components, and helping to reduce vehicle energy consumption. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall device of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the overall device of this utility model from another perspective;

[0019] Figure 3 This is the front view of the present utility model;

[0020] Figure 4 This is a top view of the present invention;

[0021] In the diagram: 1. Crossbeam body; 101. Straight beam section; 102. Curved beam section; 2. Connecting cylinder; 3. Connecting square plate; 4. Boss; 5. Connecting hole; 6. Positioning groove; 7. Positioning hole; 8. Outline reinforcing rib; 9. Diagonal reinforcing rib; 10. Weight reduction hole; 11. Step hole; 12. Connecting reinforcing rib; 13. Reinforcing protrusion. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4This utility model provides a technical solution:

[0024] In this application, the crossbeam body 1 serves as the core load-bearing component of the front suspension system. It comprises a straight beam portion 101 and curved beam portions 102 located at both ends of the straight beam portion 101 and the curved beam portion 102. The straight beam portion 101 and the curved beam portion 102 are integrally cast to form a complete crossbeam frame, which is used to connect the various components of the vehicle's front suspension and bear the load during driving.

[0025] At both ends of the curved beam 102, a connecting cylinder 2 is integrally cast with the curved beam 102. The axial direction of the connecting cylinder 2 is adapted to the extension direction of the curved beam 102, and is used to connect with the vehicle bearing seat to transmit the force transmitted by the wheel to the straight beam 101 through the curved beam 102, thereby achieving force distribution and bearing.

[0026] On the top surfaces of both ends of the straight beam 101, integrally cast with the straight beam 101, connecting square plates 3 are horizontally arranged and specifically designed for connection with the leaf springs of commercial vehicles. Between the connecting square plates 3 and the top surface of the straight beam 101, several bosses 4 are integrally cast. The bosses 4 are spaced apart along the length of the connecting square plates 3, with one end integrally connected to the top surface of the straight beam 101 and the other end integrally connected to the bottom surface of the connecting square plates 3. These bosses enhance the connection strength between the connecting square plates 3 and the straight beam 101 and prevent the connecting square plates 3 from deforming under stress.

[0027] The boss 4 has connecting holes 5 that penetrate its upper and lower ends for connecting bolts to pass through, thus achieving a fixed connection between the connecting square plate 3 and the leaf spring. Simultaneously, a positioning groove 6 is machined on the top surface of the connecting square plate 3. This positioning groove 6 is a rectangular recess, formed by milling after the crossbeam body 1 is cast. Its dimensions are adapted to the end structure of the leaf spring, serving as a positioning platform for the leaf spring, allowing the leaf spring end to be precisely embedded in the groove, ensuring a good fit between the leaf spring and the connecting square plate 3. A positioning hole 7 is provided at the bottom of the positioning groove 6, which, through the cooperation of a positioning pin with the positioning groove 6, further restricts the lateral displacement of the leaf spring, improves assembly positioning accuracy, and ensures the stability of the connection between the leaf spring and the crossbeam.

[0028] To enhance the overall rigidity and deformation resistance of the beam body 1, contour reinforcing ribs 8 are integrally cast onto the outer surfaces of both the straight beam portion 101 and the curved beam portion 102. The direction of the contour reinforcing ribs 8 is consistent with the outer contour line of the beam body 1, that is, extending along the length direction of the straight beam portion 101 and the bending direction of the curved beam portion 102, forming a ring-shaped reinforcing structure to enhance the beam body 1's resistance to bending and torsion.

[0029] Between the contour reinforcing ribs 8 of the straight beam 101, several oblique reinforcing ribs 9 are integrally cast with the contour reinforcing ribs 8 and the straight beam 101. The oblique reinforcing ribs 9 are distributed in a crisscross or inclined manner, and their two ends are integrally connected to the contour reinforcing ribs 8 on both sides of the straight beam 101 to form a grid structure, which further disperses the load on the straight beam 101, especially the vertical force transmitted by the leaf spring, and avoids local stress concentration.

[0030] Correspondingly, a number of weight-reducing holes 10 are provided on the straight beam 101. The weight-reducing holes 10 are positioned to avoid the contour reinforcing ribs 8 and the diagonal reinforcing ribs 9, and are only set in the gap area between the diagonal reinforcing ribs 9. While reducing the overall weight of the beam body 1, the load-bearing performance of the reinforcing rib structure is not affected, thus achieving a balance between lightweight and strength.

[0031] On the boss 4, a stepped hole 11 is provided at one end of the connecting hole 5. The stepped hole 11 is coaxially arranged with the connecting hole 5, and the diameter of the stepped hole 11 is larger than that of the connecting hole 5. When the bolt passes through the connecting hole 5 to connect the leaf spring, the bolt head can be embedded in the stepped hole 11, preventing the bolt head from protruding from the surface of the boss 4, ensuring a flat surface after connection, and enhancing the stability of the bolt connection to prevent loosening.

[0032] To enhance the collaborative load-bearing capacity between the bosses 4, connecting reinforcing ribs 12 are integrally cast between adjacent bosses 4 and the bosses 4. The two ends of the connecting reinforcing ribs 12 are integrally connected to the sides of the bosses 4 to form an overall load-bearing structure, which prevents individual bosses 4 from deforming due to the concentrated load of the leaf spring, and further strengthens the connection strength between the connecting square plate 3 and the straight beam 101.

[0033] At the junction of the curved beam 102 and the connecting cylinder 2, a reinforcing protrusion 13 is integrally cast with both the curved beam 102 and the connecting cylinder 2. The reinforcing protrusion 13 is arranged around the root of the connecting cylinder 2 and is integrally connected to the outer surface of both the curved beam 102 and the connecting cylinder 2. This increases the material thickness at the junction, disperses the force transmitted from the connecting cylinder 2 to the curved beam 102, prevents cracking at the junction due to stress concentration, and improves the reliability of the connection.

[0034] Through the above structural design, the crossbeam body 1 can achieve a precise and stable connection with the commercial vehicle leaf spring through the connecting square plate 3 and the positioning groove 6, and can also ensure the overall strength and rigidity through the reinforcing ribs and local reinforcement structure, while taking into account the requirements of lightweighting, and is suitable for the load-bearing and connection functions of the automotive front suspension system.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automobile front suspension beam structure comprising a beam body (1) including a straight beam portion (101) and curved beam portions (102) at both ends, characterized by: Connecting cylinders (2) are fixedly installed at both ends of the curved beam (102) for connecting with the vehicle bearing seat. Connecting square plates (3) are fixedly installed on the top surfaces of both ends of the straight beam (101). Several bosses (4) are fixedly installed between the connecting square plate (3) and the straight beam (101). A through connecting hole (5) is opened on the boss (4). A positioning groove (6) is opened on the connecting square plate (3). A positioning hole (7) is opened in the positioning groove (6).

2. The front suspension beam structure for a vehicle according to claim 1, characterized by: Both the straight beam (101) and the curved beam (102) are fixedly provided with contour reinforcing ribs (8) that are consistent with the outer contour line of the crossbeam body (1).

3. The front suspension beam structure for a vehicle according to claim 2, characterized by: Several oblique reinforcing ribs (9) are fixedly arranged between the contour reinforcing ribs (8) located in the straight beam part (101).

4. The front suspension beam structure for a vehicle according to claim 3, characterized by: The straight beam (101) is provided with a number of weight-reducing holes (10), which are located between the gaps formed by a number of oblique reinforcing ribs (9).

5. The front suspension beam structure for a vehicle according to claim 1, characterized by: The boss (4) has a stepped hole (11) and the step hole (11) is coaxial with the connecting hole (5).

6. The front suspension beam structure for a vehicle according to claim 1, characterized by: A connecting reinforcing rib (12) is fixedly provided between the bosses (4).

7. The front suspension beam structure of claim 1, wherein: A reinforcing protrusion (13) is fixedly provided at the joint between the curved beam (102) and the connecting cylinder (2).

Images