Automobile cantilever structure

Abstract

The utility model belongs to the technical field of automobile parts, and particularly relates to an automobile cantilever structure. Comprising a cantilever body (1), a first connecting end (2), a second connecting end (3) and a third connecting end (4) are arranged on the cantilever body (1), a reinforcing part (5) is arranged on each edge of the cantilever body (1), and the thickness of each reinforcing part (5) is larger than that of a body middle face (6) in the middle of the cantilever body (1). The automobile cantilever structure is formed by forging an aluminum alloy material. According to the automobile cantilever structure, the structure is simple, the overall fatigue resistance of the cantilever can be effectively improved, the service life of the cantilever can be effectively prolonged, and meanwhile the weight of the cantilever is greatly reduced on the premise that the mechanical property of the cantilever is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, more specifically, relate to a kind of automobile cantilever structure. BACKGROUND

[0002] In the suspension system of automobile, cantilever as key component, its performance directly affects the control stability of automobile, ride comfort and driving safety. The traditional automobile cantilever is mostly formed by steel plate stamping, and the material has certain strength and rigidity, which can meet the basic use demand.

[0003] However, under complex road conditions, the corrosion resistance and rigidity of the steel plate stamping cantilever structure are insufficient, which causes the cantilever body to be easily deformed and broken, affecting its service life and the safety of the whole vehicle.

[0004] In the prior art, a method for obtaining a cantilever for an automobile and the cantilever are disclosed in CN106312450A. The method includes obtaining two identical components to form a body, each component is obtained by the following steps: a) cutting a metal sheet or a composite sheet to form a base plane, so that a central section and two ends are defined, b) drawing at least one hole in each end, c) stamping each component to form two flanges in the central section, the two flanges are composed of a first flange and a second flange located on opposite sides of the central section and are oriented perpendicular to the base plane, the flanges have an asymmetric structure with respect to the geometric center passing through the holes of the two ends and perpendicular to the intermediate plane, the second flange is spaced apart from the intermediate plane by a distance equal to the spacing of the first flange from the intermediate plane plus a distance at least equal to the thickness of the sheet or plate. The invention also relates to a cantilever for an automobile.

[0005] However, the technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENT

[0006] The utility model solves the technical problems: in view of the prior art, provide a kind of automobile cantilever structure with simple structure, can effectively improve the fatigue resistance and service life of cantilever whole, while under the premise of guaranteeing the mechanical properties of cantilever, substantially reduce the weight of cantilever.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0008] The utility model is a kind of automobile cantilever structure, including cantilever body, first connecting end, second connecting end, third connecting end are provided on cantilever body, each edge of cantilever body is respectively provided with reinforcing portion, the thickness of reinforcing portion is greater than the body intermediate surface in the middle of cantilever body.

[0009] The automobile cantilever structure is made of aluminum alloy material by forging.

[0010] The first connecting end position is provided with a first connecting seat, the second connecting end position is provided with a second connecting seat, and the third connecting end position is provided with a plurality of connecting holes.

[0011] The reinforcing part comprises a first reinforcing part, a second reinforcing part and a third reinforcing part.

[0012] The first reinforcing part extends from the first connecting end position to the third connecting end position, and the second reinforcing part extends from the first connecting end position to the second connecting end position.

[0013] The third reinforcing part extends from the second connecting end position to the third connecting end position.

[0014] The first connecting seat of the first connecting end is provided with a first connecting hole, and the second connecting seat of the second connecting end is provided with a second connecting hole.

[0015] The first reinforcing part, the second reinforcing part and the third reinforcing part are all provided with arc-shaped surface structures.

[0016] The second reinforcing part is connected with the third reinforcing part.

[0017] The body intermediate surface of the cantilever body is provided with a hollow part.

[0018] The technical scheme of the utility model has the following working principles and beneficial effects:

[0019] The automobile cantilever structure, the cantilever body is integrally formed, first connecting end, second connecting end and third connecting end are formed on the cantilever body in different directions, the first connecting end, the second connecting end and the third connecting end are used for connecting different components, and a reinforcing part is arranged on each edge of the cantilever body, the reinforcing part includes multiple reinforcing parts, that is, a reinforcing part is arranged from the first connecting end position to the second connecting end position, a reinforcing part is arranged from the first connecting end position to the fourth connecting end position, and a reinforcing part is arranged from the second connecting end position to the fourth connecting end position, and the thickness of the reinforcing part is greater than the body intermediate surface of the cantilever body, so that the whole cantilever structure meets the requirements of vehicle connection, and the reinforcing part is arranged at the stress point of the cantilever structure and the connecting component to realize thickening treatment, thereby enhancing the stability and reliability of connection and improving the fatigue resistance and service life of the whole cantilever. BRIEF DESCRIPTION OF DRAWINGS

[0020] The content expressed by each drawing of the present application and the marks in the drawings are briefly described as follows:

[0021] Figure 1 The automobile cantilever structure is shown in the structural schematic view of the present application.

[0022] The marks in the drawings are as follows: 1, cantilever body; 2, first connecting end; 3, second connecting end; 4, third connecting end; 5, reinforcing part; 6, body intermediate surface; 7, first connecting seat; 8, second connecting seat; 9, connecting hole; 10, first reinforcing part; 11, second reinforcing part; 12, third reinforcing part; 13, first connecting hole; 14, second connecting hole; 15, hollow part. DETAILED DESCRIPTION

[0023] The shape, structure, mutual position and connection relationship between parts, the action and working principle of each component involved in the specific implementation manner of the present application are further described in detail through the description of the embodiments with reference to the drawings:

[0024] As shown in the accompanying Figure 1The utility model discloses a kind of automobile cantilever structures, including cantilever body 1, first connecting end 2, second connecting end 3, third connecting end 4 are set on cantilever body 1, each edge of cantilever body 1 is separately provided with reinforcing portion 5, the thickness of reinforcing portion 5 is greater than the body middle surface 6 in the middle of cantilever body 1.The automobile cantilever structure is made of aluminum alloy material forging.The above structure, for the deficiency in the prior art, proposes an improved technical solution.Structure setting, the cantilever body of automobile cantilever structure is integrally processed and formed, forms cantilever body 1 after processing, first connecting end 2, second connecting end 3, third connecting end 4 are formed on different directions of cantilever body 1 respectively, and first connecting end 2, second connecting end 3, third connecting end 4 are used to connect different components respectively, and each edge of cantilever body 1 is separately provided with reinforcing portion 5, reinforcing portion includes multiple, i.e. from the position of first connecting end 2 to the position of second connecting end 3, set a reinforcing portion, from the position of first connecting end 2 to the position of fourth connecting end 5, set a reinforcing portion, from the position of second connecting end 3 to the position of fourth connecting end 5, set a reinforcing portion, and the thickness of reinforcing portion 5 is greater than the body middle surface 6 in the middle of cantilever body 1, so that the whole cantilever structure meets the demand of vehicle connection, and reinforcing portion is added at the stress point of cantilever structure and connecting component to realize thickening treatment, to enhance the stability and reliability of connection, to improve the fatigue resistance and service life of cantilever whole body.And automobile cantilever structure is made of aluminum alloy material forging, discards traditional steel plate stamping material, selects aluminum alloy as the manufacturing material of automobile cantilever.The density of this material is about one third of steel plate, substantially reduces the weight of cantilever under the premise of guaranteeing the basic mechanical properties of cantilever.The tensile strength of the aluminum alloy material adopted reaches 260MPa, and the elongation is not less than 10%, meeting the strength and toughness demand of automobile cantilever under complex road conditions.Cantilever structure adopts forging process, and the whole cantilever is integrally formed, replacing traditional stamping and welding process, which is integrally formed, effectively avoiding product deformation, welding porosity, welding point drop-off and other defects in the stamping and welding process, and improving the overall strength of the cantilever.The automobile cantilever structure described in the utility model has simple structure, can effectively improve the fatigue resistance and service life of the whole cantilever, substantially reduces the weight of the cantilever under the premise of guaranteeing the mechanical properties of the cantilever.

[0025] First connecting seat 7 is arranged at the position of first connecting end 2, second connecting seat 8 is arranged at the position of second connecting end 3, and a plurality of connecting holes 9 are arranged at the position of third connecting end 4.The reinforcing portion 5 includes first reinforcing portion 10, second reinforcing portion 11 and third reinforcing portion 12.The above structure, first connecting seat 7, second connecting seat 8 and connecting hole 9 are used to realize the connection of different directions of cantilever structure and other corresponding components, and first reinforcing portion 10, second reinforcing portion 11 and third reinforcing portion 12 are arranged on different outer sides of cantilever body, to improve the structural strength from different parts.

[0026] The first reinforcing part 10 extends from the first connecting end 2 to the third connecting end 4, and the second reinforcing part 11 extends from the first connecting end 2 to the second connecting end 3. The third reinforcing part 12 extends from the second connecting end 3 to the third connecting end 4. The first connecting seat 7 of the first connecting end 2 is provided with a first connecting hole 13, and the second connecting seat 8 of the second connecting end 3 is provided with a second connecting hole 14. The above structure is integrally processed and formed into the whole cantilever structure, which is simple in processing technology, good in structural strength, and effective in improving the comprehensive performance.

[0027] The outer edges of the first reinforcing part 10, the second reinforcing part 11 and the third reinforcing part 12 are provided with arc-shaped surface structures. The second reinforcing part 11 is connected to the third reinforcing part 12. The above structure improves the strength of the local connecting part.

[0028] The body intermediate surface 6 of the cantilever body 1 is provided with a hollow part 15. The above structure provides the hollow part 15 on the body intermediate surface 6, which does not affect the structural strength and effectively reduces the weight.

[0029] The cantilever structure is processed by forging equipment to ensure the dimensional accuracy of the connecting parts and the mounting holes, and then is subjected to surface anodizing treatment to form an oxide layer, thereby improving the corrosion resistance and wear resistance. The redesigned cantilever structure ensures that the weight is reduced while the performance is better than that of the traditional cantilever.

[0030] The automobile cantilever structure, the cantilever body of the automobile cantilever structure is integrally machined and formed, and forms the cantilever body 1 after machining, different orientations of the cantilever body 1 form the first connecting end 2, the second connecting end 3 and the third connecting end 4, respectively, the first connecting end 2, the second connecting end 3 and the third connecting end 4 are used for connecting different components, respectively, and the cantilever body 1 is provided with the reinforcing part 5 at each edge, the reinforcing part includes multiple reinforcing parts, that is, one reinforcing part is arranged from the first connecting end 2 to the second connecting end 3, one reinforcing part is arranged from the first connecting end 2 to the fourth connecting end 5, and one reinforcing part is arranged from the second connecting end 3 to the fourth connecting end 5, and the thickness of the reinforcing part 5 is greater than the body intermediate surface 6 in the middle of the cantilever body 1, so that the entire cantilever structure meets the requirements of vehicle connection, and the reinforcing part is arranged at the stress point of the cantilever structure and the connecting component to realize thickening treatment, thereby enhancing the stability and reliability of connection and improving the fatigue resistance and service life of the entire cantilever. The automobile cantilever structure is made of aluminum alloy material, and the traditional steel plate stamping material is abandoned, and aluminum alloy is selected as the manufacturing material of the automobile cantilever. The density of the material is about one third of that of the steel plate, and the weight of the cantilever is greatly reduced under the premise of ensuring the basic mechanical properties of the cantilever. The aluminum alloy material is adopted, the tensile strength reaches 260MPa, and the elongation is not less than 10%, meeting the strength and toughness requirements of the automobile cantilever under complex road conditions. The cantilever structure adopts the forging process, and the entire cantilever is integrally formed, replacing the traditional stamping and welding process. The process is integrally formed, effectively avoiding product deformation, welding pores, and welding point falling off and other defects in the stamping and welding process, and improving the overall strength of the cantilever.

[0031] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of which are within the protection scope of the utility model.

Claims

1. An automotive cantilever structure, characterized by: The application relates to a cantilever structure of an automobile, which comprises a cantilever body (1), a first connecting end (2), a second connecting end (3) and a third connecting end (4) arranged on the cantilever body (1), and a reinforcing part (5) arranged on each side of the cantilever body (1), wherein the thickness of the reinforcing part (5) is greater than that of a body middle surface (6) of the cantilever body (1).

2. The automotive cantilever structure according to claim 1, characterized in that: The automobile cantilever structure is made of aluminum alloy material and is forged.

3. The automotive cantilever structure according to claim 1 or 2, characterized in that: A first connecting seat (7) is arranged at the position of the first connecting end (2), a second connecting seat (8) is arranged at the position of the second connecting end (3), and a plurality of connecting holes (9) are arranged at the position of the third connecting end (4).

4. The automotive cantilever structure according to claim 3, characterized in that: The reinforcing part (5) comprises a first reinforcing part (10), a second reinforcing part (11) and a third reinforcing part (12).

5. The automotive cantilever structure according to claim 4, wherein: The first reinforcing part (10) extends from the position of the first connecting end (2) to the position of the third connecting end (4), and the second reinforcing part (11) extends from the position of the first connecting end (2) to the position of the second connecting end (3).

6. The automotive cantilever structure according to claim 5, characterized in that: The third reinforcing part (12) extends from the position of the second connecting end (3) to the position of the third connecting end (4).

7. The automotive cantilever structure of claim 3, wherein: A first connecting hole (13) is arranged on the first connecting seat (7) of the first connecting end (2), and a second connecting hole (14) is arranged on the second connecting seat (8) of the second connecting end (3).

8. The automotive cantilever structure of claim 4, wherein: The outer edges of the first reinforcing part (10), the second reinforcing part (11) and the third reinforcing part (12) are all arranged in arc surface structures.

9. The automotive cantilever structure of claim 8, wherein: The second reinforcing part (11) is connected with the third reinforcing part (12).

10. The automotive cantilever structure according to claim 1 or 2, characterized by: A hollow part (15) is arranged on the body middle surface (6) of the cantilever body (1).

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