Power assembly right suspension device, assembling method and vehicle

Abstract

The invention discloses a power assembly right suspension device which comprises a right suspension shell, an installation structure arranged on the right suspension shell and a third point support connected with the installation structure, and the third point support is installed on the installation structure in a pressed mode. According to the power assembly right suspension device, the dynamic stiffness of the support is improved, and meanwhile, the NVH performance of the whole vehicle can be optimized. The invention further discloses an assembling method of the power assembly right suspension device and a vehicle.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a right suspension device of a powertrain, an assembly method and a vehicle. Background Art

[0002] With the rapid development of my country's automobile industry and the rapid rise of new energy vehicles in recent years, cars have been defined not only as a means of transportation, but also as a mobile space for pursuing driving pleasure and comfort. As an important part of automobile comfort, the suspension generally consists of three parts: the passive side bracket of the suspension, the active side bracket of the suspension, and the rubber main spring. The suspension of the powertrain generally includes the left suspension, the right suspension and the rear suspension, forming a three-point suspension.

[0003] In the prior art, sheet metal brackets and bolts are often used to form the third point bracket of the right suspension. Due to structural and material limitations, the combination of sheet metal parts and bolts has problems such as low dynamic stiffness of the passive side bracket of the suspension and substandard anti-corrosion performance. Weak vibration isolation performance will cause NVH problems such as acceleration jitter. In addition, the third point bracket is connected to the right suspension body by bolts, such as Figure 5 As shown, the bolts are arranged vertically and protrude toward the top of the third-point bracket, which will occupy more space in the Z direction (vertical direction of the vehicle). At the same time, bolt holes need to be set on the third-point bracket and the right suspension body. This right suspension device has many structural parts and the assembly process is complicated and costly. The assembly sequence of the existing right suspension device is: first fix the right suspension body on the fixture, install the third-point bracket, then tighten the bolts and nuts with a torque wrench or a tightening gun, and finally tighten the torque with a wrench.

[0004] It is desirable to provide an improved right suspension device of a powertrain, particularly with regard to how to improve structural stability. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a right suspension device of a powertrain, the purpose of which is to improve structural stability.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a right suspension device of the powertrain includes a right suspension shell, a mounting structure arranged on the right suspension shell and a third point bracket connected to the mounting structure, and the third point bracket is pressed on the mounting structure.

[0007] The third point bracket is provided with a slot for the mounting structure to be embedded.

[0008] The clamping groove is a T-shaped groove arranged at the end of the third point bracket.

[0009] The mounting structure includes a first connecting portion connected to the right suspension housing and a clamping portion connected to the first connecting portion, the clamping portion is connected to the third point bracket and is embedded in the clamping slot.

[0010] The clamping portion includes a second connection portion connected to the first connection portion and a third connection portion connected to the second connection portion, the second connection portion is located between the first connection portion and the third connection portion, and a width of the second connection portion is smaller than a width of the third connection portion.

[0011] The right suspension housing and the mounting structure are integrally cast.

[0012] The third point bracket is made of cast aluminum.

[0013] A weight-reducing hole is arranged on the third point bracket.

[0014] The present invention also provides a method for assembling the right suspension device of the powertrain, comprising the steps of:

[0015] S1. Provide the right suspension housing and the third point bracket, wherein the mounting structure is provided on the right suspension housing;

[0016] S2. Press the third point bracket onto the mounting structure.

[0017] The present invention also provides a vehicle, comprising the right suspension device of the powertrain.

[0018] The powertrain right suspension device of the present invention improves the dynamic stiffness of the bracket and can optimize the NVH performance of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a right suspension device of a powertrain of the present invention;

[0020] Figure 2 is a schematic diagram of the third point bracket structure;

[0021] Figure 3 is a schematic diagram of the right suspension housing structure;

[0022] Figure 4 is a schematic diagram of the connection between the right suspension housing and the third point bracket;

[0023] Figure 5 It is a structural schematic diagram of a right suspension device of a powertrain in the prior art;

[0024] The marks in the above figures are: 1. Third-point bracket; 2. Right suspension shell; 3. First connecting part; 4. Second connecting part; 5. Third connecting part; 6. Weight reduction hole; 7. Mounting hole; 8. Slot; 9. Right suspension body; 10. Connecting bolt; 11. Third-point sheet metal bracket; 12. First surface; 13. Second surface; 14. Base; 15. Reinforcing rib. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower" and similar expressions used in this article are for illustrative purposes only.

[0027] It should be noted that, in the following embodiments, the “first”, “second” and “third” mentioned do not represent an absolute distinction in structure and / or function, nor do they represent a sequence of execution, but are merely for the convenience of description.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] like Figures 1 to 4 As shown, the present invention provides a right suspension device of a powertrain, including a right suspension housing 2, a mounting structure arranged on the right suspension housing 2, and a third point bracket 1 connected to the mounting structure, wherein the third point bracket 1 is press-fitted on the mounting structure.

[0030] The third point bracket 1 is provided with a slot 8 for the mounting structure to be embedded.

[0031] The clamping groove 8 is a T-shaped groove provided at the end of the third point bracket 1 .

[0032] The mounting structure includes a first connecting portion 3 connected to the right suspension housing 2 and a clamping portion connected to the first connecting portion 3 , the clamping portion is connected to the third point bracket 1 and is embedded in the clamping slot 8 .

[0033] The clamping portion includes a second connection portion 4 connected to the first connection portion 3 and a third connection portion 5 connected to the second connection portion 4 . The second connection portion 4 is located between the first connection portion 3 and the third connection portion 5 . The width of the second connection portion 4 is smaller than that of the third connection portion 5 .

[0034] The right suspension housing 2 and the mounting structure are integrally cast.

[0035] The third point bracket 1 is made of cast aluminum.

[0036] The third point bracket 1 is provided with a weight-reducing hole 6 .

[0037] The present invention also provides a method for assembling a right suspension device of a powertrain, comprising the steps of:

[0038] S1, providing the right suspension housing 2 and the third point bracket 1, wherein the mounting structure is provided on the right suspension housing 2;

[0039] S2. Press-fit the third point bracket 1 onto the mounting structure.

[0040] The present invention also provides a vehicle, comprising the right suspension device of the powertrain.

[0041] Example

[0042] First, as Figures 1 to 4 As shown, an embodiment of the present invention provides a right suspension device of a powertrain, including a right suspension housing 2, a mounting structure arranged on the right suspension housing 2, and a third point bracket 1 connected to the mounting structure, wherein the third point bracket 1 is press-fitted on the mounting structure.

[0043] Specifically, the present invention increases the stability of the passive side shell of the right suspension, improves the dynamic stiffness of the right suspension bracket, and improves the vibration isolation effect of the right suspension through a new right suspension third point bracket 1 structural design. The third point bracket 1 is used to connect with the vehicle body, the right suspension shell 2 is installed on the vehicle body, and the third point bracket 1 extends toward the outside of the right suspension shell 2.

[0044] In the embodiment of the present invention, the third point bracket 1 is made of cast aluminum, which has low development difficulty and low cost, can be quickly mass-produced through molds, and has high anti-corrosion performance. Compared with traditional DC01 or SAPH440 materials, the anti-corrosion performance is effectively improved.

[0045] In the embodiment of the present invention, the right suspension device is optimized into two parts, including the right suspension housing 2 and the third-point bracket 1, and the right suspension housing 2 and the third-point bracket 1 do not need to be connected by bolts, and the third-point bracket 1 is directly pressed onto the T-shaped mounting structure on the right suspension housing 2. Compared with the solution connected by bolts in the prior art, the overall stability of the bracket is better, the passive lateral dynamic stiffness of the right suspension is higher, and the vibration isolation performance and universality of the suspension are higher.

[0046] like Figures 1 to 4 As shown, a slot 8 for embedding the mounting structure is provided on the third point bracket 1. The slot 8 is a T-shaped slot provided at one end of the third point bracket 1, and the other end of the third point bracket 1 is used to connect with the vehicle body, and the end of the third point bracket 1 is provided with a mounting hole 7 for connecting with the vehicle body.

[0047] like Figure 1 and Figure 2 As shown, a weight-reducing hole 6 is provided on the third-point bracket 1 , and a plurality of weight-reducing holes 6 are provided. All weight-reducing holes 6 are arranged in sequence along the length direction of the third-point bracket 1 , and all weight-reducing holes 6 are located between the mounting hole 7 and the slot 8 .

[0048] In the embodiment of the present invention, Figure 1 and Figure 2 As shown, two weight-reducing holes 6 are arranged on the third-point bracket 1 . The weight-reducing holes 6 are rectangular holes, and the weight-reducing holes 6 are through holes arranged along the thickness direction of the third-point bracket 1 .

[0049] like Figures 1 to 4As shown, the mounting structure includes a first connection part 3 connected to the right suspension housing 2 and a clamping part connected to the first connection part 3, the clamping part is connected to the third point bracket 1 and the clamping part is embedded in the clamping slot 8, the clamping part and the third point bracket 1 are tightly matched, the shape of the clamping part matches the shape of the clamping slot 8, and the clamping part is a T-shaped structure. The clamping part includes a second connection part 4 connected to the first connection part 3 and a third connection part 5 connected to the second connection part 4, the second connection part 4 is located between the first connection part 3 and the third connection part 5, the width of the second connection part 4 is smaller than the width of the third connection part 5, the width direction of the first connection part 3, the second connection part 4 is parallel to the width direction of the third connection part 5, and the width direction of the first connection part 3, the second connection part 4 and the third connection part 5 is parallel to the Z direction. The two ends of the second connection part 4 are fixedly connected to the two ends of the first connection part 3 and the second connection part 4 respectively, and the second connection part 4 is fixedly connected to the first connection part 3 and the second connection part 4 at the middle position in the width direction of the first connection part 3 and the second connection part 4. The first connection part 3, the second connection part 4 and the third connection part 5 are all rectangular block structures. The length directions of the first connection part 3, the second connection part 4 and the third connection part 5 are parallel and the lengths of the first connection part 3, the second connection part 4 and the third connection part 5 are the same. The widths of the first connection part 3, the second connection part 4 and the third connection part 5 are the same. The length directions of the first connection part 3, the second connection part 4 and the third connection part 5 are parallel and perpendicular to their respective width directions. Two rectangular grooves are formed between the first connection part 3 and the third connection part 5 for the end of the third point bracket 1 to be inserted into. The second connection part 4 is located between the two rectangular grooves, and the second connection part 4 and the third connection part 5 are embedded in the card slot 8.

[0050] In the embodiment of the present invention, the third point bracket 1 is combined with the right suspension housing 2 through a T-shaped structure press-fitting process to form a right suspension passive side bracket, which has high overall dynamic stiffness and good vibration isolation performance.

[0051] The right suspension housing 2 and the mounting structure are integrally cast, and the I-shaped mounting structure has cost advantages, and does not require additional processing steps, so the manufacturing cost is low. However, the right suspension body in the prior art requires an additional machining threaded hole process, and the threaded holes for mounting bolts are machined on the right suspension body, which is costly.

[0052] like Figures 1 to 4As shown, the right suspension housing 2 includes a base 14 and a protrusion disposed on the base 14. The base 14 is used to connect to the vehicle body. The protrusion is fixedly connected to the outer wall surface of the base 14, and the protrusion extends toward the outside of the base 14. The protrusion is located at the upper end of the base 14. The mounting structure is fixedly connected to the protrusion, and the protrusion is located between the first connecting portion 3 and the base 14. The protrusion is a trapezoidal block structure, and the outer surface of the protrusion includes a first surface 12 and a second surface 13. Two first surfaces 12 and two second surfaces 13 are provided, and the two first surfaces 12 are distributed in a V shape, and the two second surfaces 13 are distributed in a V shape. The two ends of the two first surfaces 12 are connected to the two ends of the two second surfaces 13 respectively. The two first surfaces 12 are arranged in sequence along the height direction (Z direction) of the base 14, the first end of the first surface 12 is fixedly connected to the outer wall surface of the base 14, the second end of the first surface 12 is fixedly connected to one side of the first connection part 3, the distance between the first ends of the two first surfaces 12 is greater than the distance between the second ends of the two first surfaces 12, and the second ends of the two first surfaces 12 are respectively fixedly connected to the upper and lower sides of the first connection part 3. The two second surfaces 13 are arranged in sequence along the length direction of the base 14 (the length direction of the base 14 is parallel to the length direction of the first connection part 3), the first end of the second surface 13 is fixedly connected to the outer wall surface of the base 14, the second end of the second surface 13 is fixedly connected to one side of the first connection part 3, the distance between the first ends of the two second surfaces 13 is greater than the distance between the second ends of the two second surfaces 13, and the second ends of the two second surfaces 13 are respectively fixedly connected to the other two sides of the first connection part 3, and the first connection part 3 is a rectangular structure with four sides, and the two first surfaces 12 and the two second surfaces 13 are respectively connected to one side of the first connection part 3.

[0053] The protrusions of the trapezoidal block structure are connected to the mounting structure, providing additional support and stability, especially when subjected to dynamic loads. The V-shaped distribution of the first surface 12 and the second surface 13 and their fixed connection with the base 14 and the first connecting portion 3 form a strong triangular support structure, which enhances the overall rigidity and durability, helps to disperse and absorb vibration energy, and further improves the vibration isolation effect.

[0054] like Figures 1 to 4As shown, the right suspension housing 2 also includes a reinforcing rib 15 fixedly arranged on the base 14. A plurality of reinforcing ribs 15 are provided, and all reinforcing ribs 15 are arranged in sequence along the width direction of the base 14. The width direction of the base 14 is parallel to the thickness direction of the first connection part 3 and the third connection part 5, and the thickness direction of the third connection part 5 is perpendicular to its length direction and width direction. The provision of the reinforcing rib 15 significantly improves the structural strength and rigidity of the suspension housing, especially in the base 14 area. This helps to resist stress caused by factors such as powertrain vibration and road unevenness, which helps to reduce deformation caused by vibration, thereby improving the performance of the suspension system.

[0055] The right suspension device of the powertrain with the above structure has the following advantages:

[0056] 1. Improve the dynamic stiffness of the bracket and optimize the NVH performance of the vehicle;

[0057] 2. The bolt connection is eliminated, the assembly process is simplified, the cost is reduced, and the installation structure does not protrude above the third point bracket 1, which can reduce the occupied Z-direction space;

[0058] 3. It only involves the right suspension shell 2, with a small impact range, a short development cycle and a high degree of commonality, effectively improving the three levels of the suspension.

[0059] In a second aspect, an embodiment of the present invention further provides a method for assembling a right suspension device of a powertrain, comprising the following steps:

[0060] S1, providing a right suspension housing 2 and a third point bracket 1, wherein a mounting structure is provided on the right suspension housing 2;

[0061] S2. Press-fit the third point bracket 1 onto the mounting structure.

[0062] In the above step S2, the third-point bracket 1 is pressed onto the mounting structure provided on the right suspension shell 2. The mounting structure and the right suspension shell 2 are integrally formed, and the mounting structure is embedded in the slot 8 on the third-point bracket 1. The two are tightly matched, and the assembly process is simple.

[0063] In a third aspect, an embodiment of the present invention further provides a vehicle, comprising a right suspension device of a powertrain having the above structure. The specific structure of the right suspension device of the powertrain can be referred to Figures 1 to 4 Since the vehicle of the present invention includes the right suspension device of the powertrain in the above embodiment, it has all the advantages of the right suspension device of the powertrain.

[0064] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. The right suspension device of the powertrain is characterized by: It comprises a right suspension shell, a mounting structure arranged on the right suspension shell and a third point bracket connected with the mounting structure, wherein the third point bracket is press-fitted on the mounting structure.

2. The right suspension device of the powertrain according to claim 1, characterized in that: The third point bracket is provided with a slot for the mounting structure to be embedded.

3. The right suspension device of the powertrain according to claim 2, characterized in that: The clamping groove is a T-shaped groove arranged at the end of the third point bracket.

4. The right suspension device of the powertrain according to claim 2, characterized in that: The mounting structure includes a first connecting portion connected to the right suspension housing and a clamping portion connected to the first connecting portion, the clamping portion is connected to the third point bracket and is embedded in the clamping slot.

5. The right suspension device of the powertrain according to claim 4, characterized in that: The clamping portion includes a second connection portion connected to the first connection portion and a third connection portion connected to the second connection portion, the second connection portion is located between the first connection portion and the third connection portion, and a width of the second connection portion is smaller than a width of the third connection portion.

6. The right suspension device of the powertrain according to any one of claims 1 to 5, characterized in that: The right suspension housing and the mounting structure are integrally cast.

7. The right suspension device of the powertrain according to any one of claims 1 to 5, characterized in that: The third point bracket is made of cast aluminum.

8. The right suspension device of the powertrain according to any one of claims 1 to 5, characterized in that: A weight-reducing hole is arranged on the third point bracket.

9. The method for assembling the right suspension device of a powertrain according to any one of claims 1 to 8, characterized in that: Includes steps: S1. Provide the right suspension housing and the third point bracket, wherein the mounting structure is provided on the right suspension housing; S2. Press the third point bracket onto the mounting structure.

10. A vehicle, characterized in that It comprises the right suspension device of the powertrain as described in any one of claims 1 to 8.

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