Lightweight suspension upper fixing bracket

Abstract

The utility model discloses a kind of lightweight air suspension upper fixed support, including main part for being connected with frame and extension part for being connected with air bag upper end, characterized in that, the main part with the extension part is integrated structure, and the thickness of the extension part is greater than the main part thickness 6 times, the interface structure between the main part with the extension part is smooth connection's arc angle. Magnesium-aluminum alloy structure is adopted integrated, in the case where weight reduction is realized, the consistency of part production is promoted, and the strength of support is ensured by optimizing the thickness difference of main body and extension part and optimizing stress distribution and the interface structure of arc chamfer.

Description

Technical Field

[0001] This utility model relates to the field of air suspension, and in particular to a lightweight air suspension upper fixed bracket. Background Technology

[0002] Figure 1 The existing airbag mounting bracket structure is demonstrated. It employs a traditional welded structure design, including a mounting plate 1 fixedly connected to the vehicle frame and a first top plate 3 connected to the upper part of the airbag. The first top plate 3 is welded to the mounting plate 1. Additionally, a pair of side plates 2 are provided on both sides of the mounting plate 1, also welded to the mounting plate 1 and the first top plate 3. Their main function is to provide additional welded fixing structures on two sides of the first top plate 3. Since the force is mainly transmitted to the mounting plate 1 through the first top plate 3 during vehicle movement, a crossbeam 4 welded to the mounting plate 1, the first top plate 3, and the side plates 2 is also provided on the top of the first top plate 3 to further ensure the strength of the overall bracket structure.

[0003] The manufacture of this old-style welded bracket requires a tedious and complex cross-welding process, most of which is done manually by welders, resulting in inconsistent product quality. Furthermore, the use of carbon steel welding materials is not conducive to the current weight reduction requirements of OEMs. Utility Model Content

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

[0005] A lightweight air suspension mounting bracket includes a main body for connecting to a vehicle frame and an extension for connecting to the upper end of an airbag. The main body and the extension are integral structures, and the thickness of the extension is three times the thickness of the main body. The connection structure between the main body and the extension is a smooth, rounded corner.

[0006] Furthermore, a second top plate connected to the upper end of the airbag is provided on the lower side of the extension portion.

[0007] Furthermore, several perforated holes are provided within the extended portion.

[0008] Furthermore, the main body portion has at least one pair of mounting feet extending downwards.

[0009] Furthermore, a plurality of mounting holes are provided on the end of the mounting foot for locking with the frame from a first direction.

[0010] Furthermore, an auxiliary bracket is provided on the back of the main body, which is locked to the frame from a second direction.

[0011] The beneficial effects of this utility model are as follows:

[0012] The lightweight suspended fixed bracket provided by this utility model adopts an integrated magnesium-aluminum alloy structure, which improves the consistency of parts production while reducing weight. The strength of the bracket is ensured by optimizing the thickness difference between the main body and the extension part, the rounded chamfer connection structure, and optimizing the stress distribution. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the existing technology.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 1 .

[0016] Figure 3 This is a schematic diagram of the structure of this utility model. Figure 2 .

[0017] Figure 4 This is a schematic diagram of the finite element analysis of this utility model.

[0018] Figure 5 This is an assembly diagram of the present invention. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. The above description is for the purpose of simplifying the description of this utility model and does 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, it should not be construed as a limitation of this utility model.

[0020] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0021] In the specification, when an element is described as being "on," "fixed" to, "connected" to, or "joined" to another element, the element may be directly located on, fixed to, connected to, joined to, or in contact with the other element, or there may be an intermediate element present. In the specification, the description of a feature being arranged "adjacent" to another feature may refer to a feature having a portion that overlaps with the adjacent feature or a portion located above or below the adjacent feature.

[0022] It is understood that although the terms "first," "second," etc., may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Therefore, a first element may be referred to as a second element without departing from the teachings of this application.

[0023] Exemplary embodiments of this application will now be described with reference to the accompanying drawings. However, it should be understood that this application can be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, the same reference numerals denote the same or functionally identical elements.

[0024] Figure 2 and Figure 3 A lightweight air suspension mounting bracket is shown, which mainly includes a main body portion 10 for connecting and fixing to the vehicle frame 5 and an extension portion 20 extending horizontally from the main body portion 10 for fixing to the connection point on the airbag.

[0025] The main body 10 has at least a pair of downwardly extending mounting feet 11, and a plurality of connecting holes 12 are provided on one side near the end of the mounting feet 11 for locking the fixing bracket 100 to the vehicle frame 5 from the first direction by fasteners. The extension 20 is at approximately a 90° angle to the main body 10, and a second top plate 21 is provided on the lower side of the extension 20, thereby enabling connection to the top of the airbag through the second top plate 21.

[0026] In some embodiments, an auxiliary bracket 30 is also provided on the back side of the main body 10, thereby increasing the fixing point between the main body 10 and the frame 5 from a second direction.

[0027] Reference Figure 4 and Figure 5It is important to understand that during vehicle operation, the fixed bracket 100 is continuously subjected to a force nearly perpendicular to the second roof plate 21, transmitted from the airbag below the second roof plate 21. This force is transmitted to the frame 5 through the extension portion 20 and the main body portion 10. Therefore, the upper part of the extension portion 20 and the inner side of the main body portion 10 are stress concentration areas. For this reason, the thickness L2 of the extension portion 20 is designed to be more than six times the thickness L1 of the main body portion 10. Preferably, L2 is 67 mm and L1 is 10 mm. Furthermore, the connection between the extension portion 20 and the main body portion 10 is designed to be joined by a smooth rounded chamfer 23. This avoids the stress concentration problem caused by common chamfered structures.

[0028] In some embodiments, at least one perforation 22 is provided at the top of the extension 20, thereby reducing the amount of material used in the parts and achieving weight reduction.

[0029] This fixed support structure eliminates the need for the large-area support beams used in the original welded structure. The main body 10 and the extension 20 are integrally cast. This structural process also allows the parts to be made of magnesium-aluminum alloy with a unit density much lower than that of carbon steel alloy, achieving weight reduction while ensuring strength, and making the parts structure more compact.

Claims

1. A lightweight air suspension upper fixing bracket, comprising a main body for connecting to a vehicle frame and an extension for connecting to the upper end of an airbag, characterized in that, The main body and the extension are an integral structure, and the thickness of the extension is more than 6 times the thickness of the main body. The connection structure between the main body and the extension is a smooth arc corner.

2. The lightweight suspended fixed bracket as described in claim 1, characterized in that, A second top plate, which is connected to the upper end of the airbag, is provided on the lower side of the extension portion.

3. The lightweight suspended fixed bracket as described in claim 2, characterized in that, Several perforated holes are provided in the extended portion.

4. The lightweight suspended fixed bracket as described in claim 1, characterized in that, The main body has at least one pair of mounting feet that extend downwards.

5. A lightweight suspended fixed bracket as described in claim 4, characterized in that, A plurality of mounting holes are provided on the end of the mounting foot for locking with the frame from a first direction.

6. A lightweight suspended fixed bracket as described in claim 4, characterized in that, An auxiliary bracket is also provided on the back of the main body, which is locked to the frame from a second direction.

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