Suspension swing arm structure, mounting assembly of suspension swing arm and vehicle

Abstract

The utility model relates to the technical field of vehicle parts, in particular to a suspension swing arm structure, a mounting assembly of a suspension swing arm and a vehicle, and aims to solve the problem that a suspension swing arm structure of an existing vehicle is prone to breakage due to overload stress at a supporting arm. In order to achieve the purpose, the suspension swing arm structure comprises a concave plate body and a reinforcing plate fixed in the concave plate body, and the concave plate body comprises a first connecting end, a second connecting end and a supporting arm located between the first connecting end and the second connecting end; wherein the concave plate body is provided with at least one notch close to the supporting arm, the reinforcing plate is provided with a folded edge, and the folded edge is in lap joint with the notch and covers the notch. Through the arrangement, on one hand, the gap is arranged close to the support arm, so that the cracking risk of the support arm caused by punch forming of the concave plate body can be reduced, on the other hand, the folding edge is fixed at the gap in a lap joint manner to compensate and enhance the mechanical strength of the support arm, so that the support arm is prevented from being broken due to overload stress, and the mechanical strength of the suspension swing arm structure is integrally improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle components, and in particular to a suspension swing arm structure, a suspension swing arm installation assembly and a vehicle. Background Art

[0002] The suspension swing arm structure of common vehicles at present is formed by buckling and welding a concave plate body and a reinforcement plate, wherein the concave plate body includes connecting ends at both sides and a support arm located in the middle of the concave plate body. A ball pin assembly is installed on one connecting end to connect with the steering knuckle, and sleeves are installed on the other connecting end and the support arm to connect with the vehicle frame or subframe.

[0003] The existing concave plate body is usually prepared by stamping. When the support arm of the suspension swing arm structure is overloaded, the support arm is prone to breakage, thereby reducing the overall mechanical strength of the suspension swing arm structure and causing poor user experience.

[0004] Accordingly, the art needs a new suspension swing arm structure to solve the above problems. Utility Model Content

[0005] In order to alleviate or solve the above-mentioned problems in the prior art, that is, to solve the problem that the suspension swing arm structure of the existing vehicle is prone to breakage due to overload at the support arm.

[0006] In a first aspect, the present application provides a suspension swing arm structure, which includes a concave plate body and a reinforcing plate fixed inside the concave plate body, wherein the concave plate body includes a first connecting end, a second connecting end, and a support arm located between the first connecting end and the second connecting end; wherein the concave plate body is provided with at least one notch close to the support arm, and the reinforcing plate is provided with a folded edge, and the folded edge is overlapped and fixed at the notch to cover the notch.

[0007] In the preferred technical solution of the above-mentioned suspension swing arm structure, the folded edge is located on the inner side of the concave plate body.

[0008] In the preferred technical solution of the above-mentioned suspension swing arm structure, the concave plate body is fixed to the reinforcing plate by welding.

[0009] In the preferred technical solution of the above-mentioned suspension swing arm structure, the concave plate body is provided with a first weight-reducing hole.

[0010] In the preferred technical solution of the above-mentioned suspension swing arm structure, a second weight-reducing hole is provided on the reinforcing plate, and the second weight-reducing hole is arranged opposite to the first weight-reducing hole.

[0011] In the preferred technical solution of the above-mentioned suspension swing arm structure, the difference between the length of the folded edge and the length of the notch is not less than 20 mm and not more than 120 mm.

[0012] In the preferred technical solution of the above-mentioned suspension swing arm structure, the width of the notch is 5mm-40mm.

[0013] In the preferred technical solution of the above-mentioned suspension swing arm structure, the thickness of the concave plate body is 2mm-5mm, and the thickness of the reinforcing plate is 1.5mm-4mm.

[0014] In a second aspect, the present application provides a suspension swing arm installation assembly, which includes the suspension swing arm structure, and the suspension swing arm installation assembly also includes a first sleeve, a second sleeve and a ball pin assembly, the first sleeve is installed and fixed on the first connecting end, the ball pin assembly is installed and fixed on the second connecting end, and the second sleeve is installed and fixed on the support arm.

[0015] In a third aspect, the present application provides a vehicle, comprising the suspension swing arm structure.

[0016] Those skilled in the art can understand that the suspension swing arm structure of the present application includes a concave plate body and a reinforcing plate fixed in the concave plate body, the concave plate body includes a first connecting end, a second connecting end and a support arm located between the first connecting end and the second connecting end; wherein, at least one notch close to the support arm is provided on the concave plate body, and a folding edge is provided on the reinforcing plate, and the folding edge overlaps the notch and covers the notch. Through such a setting, on the one hand, the notch is arranged close to the support arm to reduce the risk of cracking of the concave plate body at the support arm after stamping, and on the other hand, the folding edge overlaps and is fixed at the notch to compensate for and enhance the mechanical strength of the support arm to avoid the support arm from being overloaded and fractured, thereby improving the mechanical strength of the suspension swing arm structure as a whole.

[0017] Furthermore, the difference between the length of the folded edge and the length of the notch is not less than 20 mm and not more than 120 mm. By such an arrangement, it is ensured that the folded edge covers the notch in the length direction, the connection strength of the welded overlap is ensured, and the mechanical strength of the support arm is enhanced.

[0018] In addition, the suspension swing arm installation assembly and vehicle further provided by the present application on the basis of the above-mentioned technical solution have the technical effects possessed by the above-mentioned suspension swing arm structure due to the adoption of the above-mentioned suspension swing arm structure. Compared with the existing suspension swing arm installation assembly and vehicle, the suspension swing arm installation assembly and vehicle of the present application have better mechanical properties and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0020] Figure 1 It is a structural schematic diagram of the concave plate body of the suspension swing arm structure of the present application;

[0021] Figure 2 is a structural schematic diagram of a reinforcement plate of a suspension swing arm structure of the present application;

[0022] Figure 3 It is a structural schematic diagram of the installation assembly of the suspension swing arm of the present application;

[0023] Figure 4 yes Figure 3 Schematic diagram of the structure in the AA section;

[0024] Figure 5 yes Figure 3 Schematic diagram of the structure in the middle BB section;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the overlap position of the concave plate body and the reinforcing plate of the application.

[0026] List of reference numerals:

[0027] 1. Concave plate body; 11. Notch; 12. Support arm; 13. First weight-reducing hole; 2. Reinforcement plate; 21. Folded edge; 22. Second weight-reducing hole; 3. Second sleeve; 4. First sleeve; 5. Ball pin assembly. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0029] It should be noted that, in the description of the present application, terms such as "up", "down", "left", "right", "horizontal", "vertical", "top", and "bottom" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present application.

[0030] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0031] Based on the problem pointed out in the background technology that the support arm of the existing suspension swing arm structure is prone to fracture due to overload. The applicant has found that the force extension of the concave plate body at the support arm is uneven after stamping, which reduces the mechanical strength of the support arm. When the support arm is overloaded, the support arm is prone to fracture. Therefore, the present application provides a suspension swing arm structure, which aims to set a notch at the support arm of the concave plate body to reduce the impact of stamping on the performance of the concave plate body, and the concave plate body and the reinforcing plate are set in a complementary buckle form to enhance the mechanical strength of the support arm. The suspension swing arm structure of the present application is described in detail through two specific embodiments.

[0032] Implementation

[0033] like Figures 1 to 5 As shown, the suspension swing arm structure of the embodiment of the present application includes a concave plate body 1 and a reinforcing plate 2 fixed in the concave plate body 1, and the concave plate body 1 includes a first connecting end, a second connecting end, and a support arm 12 located between the first connecting end and the second connecting end. Among them, the concave plate body 1 is provided with at least one notch 11 close to the support arm 12, and the reinforcing plate 2 is provided with a folded edge 21, which is overlapped and fixed at the notch 11 and covers the notch 11.

[0034] Specifically, Figure 1 As shown, after the concave plate body 1 of the embodiment of the present application is stamped, the cross section of the concave plate body 1 along the length direction is a U-shaped structure. The support arm 12 is formed in the middle area of ​​one side of the U-shaped structure and the first connecting end, the second connecting end of the concave plate body 1 and the support arm 12 are arranged in a triangular structure. A notch 11 is provided on the side of the U-shaped structure on the side close to the support arm 12.

[0035] like Figures 1 to 4 As shown, a partially strip-shaped folded edge 21 is provided on one side of the reinforcing plate 2 of the embodiment of the present application, and the folded edge 21 on the reinforcing plate 2 is arranged opposite to the notch 11 on the concave plate body 1. Among them, the thickness of the concave plate body 1 is selected from a 3mm steel plate, the length of the notch 11 of the concave plate body 1 is 30mm, and the width of the notch 11 of the concave plate body 1 is set to 10mm. The thickness of the reinforcing plate 2 is selected from a 2.5mm steel plate, the length of the folded edge 21 of the reinforcing plate 2 is set to 56mm, and the width of the folded edge 21 of the reinforcing plate 2 is set to 20mm.

[0036] like Figures 4 to 5 As shown, when the reinforcing plate 2 is inside the concave plate body 1 and is welded and fixed to the inner wall of the concave plate body 1 along the side of the reinforcing plate 2, the position of the reinforcing plate 2 in the concave plate body 1 in the thickness direction is adjusted so that the folded edge 21 covers the notch 11 and the folded edge 21 is welded and fixed around the notch 11.

[0037] like Figure 4As shown, the folded edge 21 of the reinforcing plate 2 and the notch 11 of the concave plate body 1 have an overlap width (W). The overlap width (W) is controlled to be not less than 10 mm, and the overlap length of the folded edge 21 of the reinforcing plate 2 and one side of the notch 11 along the length direction (not shown in the figure) is (56-30) / 2=13 mm.

[0038] It can be understood that, compared with the existing suspension swing arm structure, the concave plate body 1 of the embodiment of the present application is provided with a notch 11 near the support arm 12 to reduce the influence of stamping on the mechanical properties of the support arm 11 of the concave plate body. After the folded edge 21 of the reinforcing plate 2 is overlapped and welded and fixed at the notch 11 of the concave plate body 1, the mechanical strength of the suspension swing arm structure is enhanced as a whole, the risk of the suspension swing arm structure being broken due to overload of the support arm 12 is avoided, and the user experience is improved.

[0039] like Figure 3 and Figure 4 As shown, the folded edge 21 of the reinforcing plate 2 of the embodiment of the present application is located on the inner side of the concave plate body 1 .

[0040] It is understandable that, when the folded edge 21 of the reinforcing plate 2 is welded and fixed to the inner wall of the concave plate body 1 , the folded edge 21 of the reinforcing plate 2 reinforces the support arm 12 from the inner side of the concave plate body 1 , thereby improving the mechanical strength of the support arm 12 .

[0041] like Figures 1 to 3 As shown, the concave plate body 1 of the embodiment of the present application is provided with a first weight-reducing hole 13 . The reinforcing plate 2 is provided with a second weight-reducing hole 22 , which is arranged opposite to the first weight-reducing hole 13 .

[0042] like Figures 1 to 3 As shown, two first weight-reducing holes 13 are provided in the middle of the concave plate body 1, and correspondingly, two second weight-reducing holes 22 are provided on the reinforcing plate 2. The two first weight-reducing holes 13 and the two second weight-reducing holes 22 are respectively provided on both sides of the support arm 12. There is a groove structure facing inward on the bottom surface of the concave plate body 1, and the two first weight-reducing holes 13 are located inside the groove structure. The groove structure enhances the bending strength of the concave plate body 1.

[0043] It is understandable that, under the premise of not reducing the overall mechanical properties of the suspension swing arm structure, the lightweight design of the suspension swing arm structure can be achieved by setting weight-reducing holes, thereby saving the manufacturing cost of the suspension swing arm structure.

[0044] Implementation II

[0045] like Figure 1As shown, the suspension swing arm structure of the embodiment of the present application includes a concave plate body 1 and a reinforcing plate 2 fixed in the concave plate body 1, and the concave plate body 1 includes a first connecting end, a second connecting end, and a support arm 12 located between the first connecting end and the second connecting end. Among them, the concave plate body 1 is provided with at least one notch 11 close to the support arm 12, and the reinforcing plate 2 is provided with a folded edge 21, which is overlapped and fixed at the notch 11 and covers the notch 11.

[0046] Specifically, Figure 1 As shown, after the concave plate body 1 of the embodiment of the present application is stamped, the cross section of the concave plate body 1 along the length direction is a U-shaped structure. The support arm 12 is formed in the middle area of ​​one side of the U-shaped structure and the first connecting end, the second connecting end of the concave plate body 1 and the support arm 12 are arranged in a triangular structure. A notch 11 is provided on the side of the U-shaped structure on the side close to the support arm 12.

[0047] like Figure 2 As shown, a partially strip-shaped folded edge 21 is provided on one side of the reinforcing plate 2 of the embodiment of the present application, and the folded edge 21 on the reinforcing plate 2 is arranged opposite to the notch 11 on the concave plate body 1. Among them, the thickness of the concave plate body 1 is selected from a 4mm steel plate, the length of the notch 11 of the concave plate body 1 is 30mm, and the width of the notch 11 of the concave plate body 1 is set to 10mm. The thickness of the reinforcing plate 2 is selected from a 3mm steel plate, the length of the folded edge 21 of the reinforcing plate 2 is set to 50mm, and the width of the folded edge 21 of the reinforcing plate 2 is set to 20mm.

[0048] like Figures 5 and 6 As shown, when the reinforcing plate 2 is inside the concave plate body 1 and is welded and fixed to the inner wall of the concave plate body 1 along the side of the reinforcing plate 2, the position of the reinforcing plate 2 in the concave plate body 1 in the thickness direction is adjusted so that the folded edge 21 covers the notch 11 and the folded edge 21 is welded and fixed around the notch 11.

[0049] like Figure 6 As shown, the folded edge 21 of the reinforcing plate 2 and the notch 11 of the concave plate body 1 have an overlap width (W). The overlap width (W) is controlled to be not less than 10 mm, and the overlap length of the folded edge 21 of the reinforcing plate 2 and one side of the notch 11 along the length direction (not shown in the figure) is (50-30) / 2=10 mm.

[0050] It can be understood that, compared with the existing suspension swing arm structure, the concave plate body 1 of the embodiment of the present application is provided with a notch 11 near the support arm 12 to reduce the influence of stamping on the mechanical properties of the support arm 11 of the concave plate body. After the folded edge 21 of the reinforcing plate 2 is overlapped and welded and fixed at the notch 11 of the concave plate body 1, the mechanical strength of the suspension swing arm structure is enhanced as a whole, the risk of the suspension swing arm structure being broken due to overload of the support arm 12 is avoided, and the user experience is improved.

[0051] like Figure 6 As shown, the folded edge 21 of the reinforcing plate 2 of the embodiment of the present application is located on the outer side of the concave plate body 1 .

[0052] When the folded edge 21 of the reinforcing plate 2 is welded and fixed to the outer side wall of the concave plate body 1 , the folded edge 21 of the reinforcing plate 2 reinforces the support arm 12 from the outer side of the concave plate body 1 , thereby improving the mechanical strength of the support arm 12 .

[0053] It is understandable that, according to actual applications, those skilled in the art may design the folded edge 21 to cover the notch 11 as a whole from the outside, or, may set the folded edge 21 to a T-shaped structure to pass through the notch 11 and cover the notch 11 as a whole from the outside. Such flexible adjustment and change of the specific structure of the folded edge 21 does not deviate from the basic principle and scope of the present application and shall be limited within the scope of protection of the present application.

[0054] like Figure 1 and Figure 2 As shown, the concave plate body 1 of the embodiment of the present application is provided with a first weight-reducing hole 13 . The reinforcing plate 2 is provided with a second weight-reducing hole 22 , which is arranged opposite to the first weight-reducing hole 13 .

[0055] like Figure 1 and Figure 2 As shown, two first weight-reducing holes 13 are provided in the middle of the concave plate body 1, and correspondingly, two second weight-reducing holes 22 are provided on the reinforcing plate 2. The two first weight-reducing holes 13 and the two second weight-reducing holes 22 are respectively provided on both sides of the support arm 12. There is a groove structure facing inward on the bottom surface of the concave plate body 1, and the two first weight-reducing holes 13 are located inside the groove structure. The groove structure enhances the bending strength of the concave plate body 1.

[0056] It is understandable that, under the premise of not reducing the overall mechanical properties of the suspension swing arm structure, the lightweight design of the suspension swing arm structure can be achieved by setting weight-reducing holes, thereby saving the manufacturing cost of the suspension swing arm structure.

[0057] It should be noted that the number of the notches 11 and the weight-reducing holes in the above-mentioned embodiment 1 and embodiment 2 is not restrictive. According to practical applications, those skilled in the art may set the number of the notches 11 to two or more, and the number of the first weight-reducing holes 13 and the number of the second weight-reducing holes 22 may both be set to three or more. Such flexible adjustment and change of the specific number of the notches 11 and the weight-reducing holes does not deviate from the basic principle and scope of the present application, and shall be limited within the protection scope of the present application.

[0058] In addition, the specific dimensions of the notch 11 on the concave plate body 1 and the folded edge 21 on the reinforcing plate 2 in the above-mentioned first and second embodiments are not restrictive. Among them, the difference between the length of the folded edge 21 and the length of the notch 11 is controlled within a range of not less than 20 mm and not more than 120 mm, that is, the overlap amount of the folded edge 21 of the reinforcing plate 2 at the notch 11 of the concave plate body 1 in the length direction is not less than 10 mm to ensure the firmness of the reinforcing plate 2 and the concave plate body 1 after welding. The width of the notch 11 of the concave plate body 1 is controlled within the range of 5 mm-40 mm, and the influence of stamping on the strength of the support arm 12 of the concave plate body 1 is reduced by controlling and adjusting the width of the notch 11 of the concave plate body 1. The thickness of the concave plate body 1 is controlled within the range of 2 mm-5 mm, and the thickness of the reinforcing plate 2 is controlled within the range of 1.5 mm-4 mm, which is convenient for preparing suspension swing arm structures with different mechanical strengths.

[0059] In addition, if Figure 3 As shown, the present application also provides a suspension swing arm installation assembly, which includes a first sleeve 4, a second sleeve 3, a ball pin assembly 5, and a suspension swing arm structure in Embodiment 1 or Embodiment 2. The first sleeve 4 is welded and fixed on the first connecting end, the ball pin assembly 5 is installed and fixed on the second connecting end, and the second sleeve 3 is welded and fixed on the support arm 12.

[0060] Finally, the present application also provides a vehicle, which includes the suspension swing arm installation assembly, a frame and a steering knuckle in the above-mentioned embodiment 1 or embodiment 2. The first sleeve 4 and the second sleeve 3 are fastened to the frame by bolts, respectively, and the ball pin assembly 5 is fastened to the steering knuckle.

[0061] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A suspension swing arm structure, characterized in that: The invention comprises a concave plate body (1) and a reinforcing plate (2) fixed in the concave plate body (1), wherein the concave plate body (1) comprises a first connecting end, a second connecting end and a supporting arm (12) located between the first connecting end and the second connecting end; wherein the concave plate body (1) is provided with at least one notch (11) close to the supporting arm (12), and the reinforcing plate (2) is provided with a folded edge (21), wherein the folded edge (21) is overlapped and fixed at the notch (11) and covers the notch (11).

2. The suspension swing arm structure according to claim 1, characterized in that: The folded edge (21) is located on the inner side of the concave plate body (1).

3. The suspension swing arm structure according to claim 1, characterized in that: The concave plate body (1) and the reinforcing plate (2) are fixed by welding.

4. The suspension swing arm structure according to claim 1, characterized in that: The concave plate body (1) is provided with a first weight-reducing hole (13).

5. The suspension swing arm structure according to claim 4, characterized in that: The reinforcing plate (2) is provided with a second weight-reducing hole (22), and the second weight-reducing hole (22) is arranged opposite to the first weight-reducing hole (13).

6. The suspension swing arm structure according to claim 1, characterized in that: The difference between the length of the folded edge (21) and the length of the notch (11) is not less than 20 mm and not more than 120 mm.

7. The suspension swing arm structure according to claim 1, characterized in that: The width of the notch (11) is 5 mm to 40 mm.

8. The suspension swing arm structure according to claim 1, characterized in that: The thickness of the concave plate body (1) is 2 mm to 5 mm, and the thickness of the reinforcing plate (2) is 1.5 mm to 4 mm.

9. A suspension swing arm mounting assembly, characterized in that: The invention comprises a suspension swing arm structure as claimed in any one of claims 1 to 8, wherein the installation assembly of the suspension swing arm further comprises a first sleeve (4), a second sleeve (3) and a ball pin assembly (5), wherein the first sleeve (4) is installed and fixed on the first connecting end, the ball pin assembly (5) is installed and fixed on the second connecting end, and the second sleeve (3) is installed and fixed on the support arm (12).

10. A vehicle, characterized in that: The invention comprises the suspension swing arm structure according to any one of claims 1 to 8.

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