H arm assembly and vehicle

Abstract

The embodiment of the invention provides an H-shaped arm assembly and a vehicle, the H-shaped arm assembly comprises an H-shaped arm body, the H-shaped arm body is provided with a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are arranged at an interval in the length direction of the H-shaped arm body; the first lining is arranged in the first connecting pipe, and a first concave-convex structure is arranged at one end, used for abutting against the opponent piece, of the first lining; the second lining is arranged in the second connecting pipe, and a second concave-convex structure is arranged at the end, used for being connected with the opponent piece in an abutting mode, of the second lining. The H arm lining solves the technical problem that in the prior art, the clamping force between an H arm lining and an opponent piece is insufficient.

Description

TECHNICAL FIELD

[0001] The embodiments of the present application relate to the technical field of vehicle H-arm, in particular, relate to an H-arm assembly and a vehicle. BACKGROUND

[0002] The automobile suspension H-arm assembly is an important component connecting the wheel and the vehicle body. Through precise geometric design and material selection, it bears the key task of transmitting torque and controlling the wheel movement path. The H-arm is connected with the counterpart through the bushing. The friction coefficient of the contact surface between the bushing and the counterpart is low, which may cause insufficient clamping force when bearing dynamic load, thereby affecting the stability and responsiveness of the suspension system.

[0003] In order to increase the clamping force, in the prior art, a gasket is arranged at each end of the bushing, and the two ends of the bushing are respectively abutted with the counterpart through the gaskets. However, the double-sided press-fitting gaskets make the tolerance control more difficult, which leads to the increase of the opening size gap of the counterpart, further affects the stability of the clamping force, and may also cause additional vibration and noise, reducing the driving comfort.

[0004] At present, there is no good solution to the technical problem of insufficient clamping force of the H-arm bushing and the counterpart in the prior art. SUMMARY

[0005] The embodiments of the present application provide an H-arm assembly and a vehicle to at least solve the technical problem of insufficient clamping force of the H-arm bushing and the counterpart in the prior art.

[0006] According to one aspect of the embodiments of the present application, an H-arm assembly is provided, comprising: an H-arm body, the H-arm body being provided with a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe being arranged at intervals along the length direction of the H-arm body; a first bushing, the first bushing being arranged in the first connecting pipe, one end of the first bushing for abutting with the counterpart being provided with a first concave-convex structure; and a second bushing, the second bushing being arranged in the second connecting pipe, one end of the second bushing for abutting with the counterpart being provided with a second concave-convex structure.

[0007] Further, the axis of the first bushing and the axis of the second bushing are arranged along the length direction of the vehicle, the first bushing is arranged close to the front direction of the vehicle, the second bushing is arranged close to the rear direction of the vehicle, the first concave-convex structure is located at the front end of the first bushing, and the second concave-convex structure is located at the rear end of the second bushing.

[0008] Further, the first concave-convex structure is formed on the first gasket, the first gasket is connected with the first bushing, and / or the second concave-convex structure is formed on the second gasket, the second gasket is connected with the second bushing.

[0009] Further, one end of the first gasket is connected with the first bushing, and the other end of the first gasket is provided with a first concave-convex structure, which is a plurality of first convex ribs formed on the end face of the first gasket and arranged along the circumference of the first gasket.

[0010] Further, one end of the second gasket is connected with the second bushing, and the other end of the second gasket is provided with a second concave-convex structure, which is a plurality of second convex ribs formed on the end face of the second gasket and arranged along the circumference of the second gasket.

[0011] Further, the front end of the first bushing is provided with a first limiting structure connected with the front end face of the first connecting pipe.

[0012] Further, the first limiting structure is a first flange formed on the first outer pipe of the first bushing and arranged along the circumference of the first outer pipe.

[0013] Further, the front end of the second bushing is provided with a second limiting structure connected with the rear end face of the second connecting pipe.

[0014] Further, the second limiting structure is a second flange formed on the second outer pipe of the second bushing and arranged along the circumference of the second outer pipe.

[0015] According to another aspect of the embodiments of the present application, a vehicle is also provided, which comprises the H-arm assembly described above.

[0016] In the embodiments of the present application, one end of the first bushing and the second bushing for abutting against the opponent piece is provided with a concave-convex structure, that is, one end of the first bushing abuts against the opponent piece through the concave-convex structure, the other end of the first bushing directly abuts against the opponent piece, one end of the second bushing abuts against the opponent piece through the concave-convex structure, and the other end of the second bushing directly abuts against the opponent piece. Only one end of the bushing is provided with the concave-convex structure, that is, on the basis of increasing the friction between the bushing and the opponent piece, compared with the structure in which both ends of the bushing are respectively provided with the concave-convex structure, the assembly tolerance between the bushing and the opponent piece is reduced, and the clamping force is further reduced. The above-mentioned scheme solves the technical problem of insufficient clamping force between the H-arm bushing and the opponent piece in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0018] Figure 1 is an exploded schematic view of the H-arm assembly in the present application;

[0019] Figure 2is a structural schematic view of the H-arm assembly in the present application under a first perspective view;

[0020] Figure 3 is a structural schematic view of the H-arm assembly in the present application under a second perspective view;

[0021] Figure 4 is a schematic view of the connection relationship between the first bushing and the H-arm body in the present application;

[0022] Figure 5 is a schematic view of the connection relationship between the second bushing and the H-arm body in the present application.

[0023] Among the above-mentioned drawings, the following reference signs are included:

[0024] 1, H-arm body;

[0025] 11, first connecting pipe; 12, second connecting pipe;

[0026] 2, first bushing;

[0027] 21, first outer pipe; 211, first flange; 22, first inner pipe; 23, first rubber body;

[0028] 3, second bushing;

[0029] 31, second outer pipe; 311, second flange; 32, second inner pipe; 33, second rubber body;

[0030] 4, first gasket;

[0031] 41, first concave-convex structure;

[0032] 5, second gasket;

[0033] 51, second concave-convex structure. DETAILED DESCRIPTION

[0034] In order to make the person skilled in the art better understand the present application, the technical solutions in the present application will be described clearly and completely in the following with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0035] It should be noted that the terms "first", "second" and the like in the description and in the claims of the present application and the above-mentioned accompanying drawings are intended to distinguish similar objects and not necessarily describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or apparatus that includes a list of steps or units is not necessarily limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or apparatus.

[0036] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in various different forms, and should not be interpreted as being limited to only the embodiments set forth herein. It should be understood that the embodiments are provided so that the present disclosure is complete and comprehensive, and the concepts of the exemplary embodiments are sufficiently conveyed to those of ordinary skill in the art, and in the drawings, the thicknesses of layers and regions can be exaggerated for clarity, and the same reference numerals are used to designate the same elements throughout, and thus a description thereof will be omitted.

[0037] In conjunction with Figures 1 to 5 As shown, according to specific embodiments of the present application, an H-arm assembly is provided.

[0038] Specifically, the H-arm assembly comprises: an H-arm body 1, the H-arm body 1 is provided with a first connecting pipe 11 and a second connecting pipe 12, the first connecting pipe 11 and the second connecting pipe 12 are arranged at intervals along the length direction of the H-arm body 1; a first bushing 2, the first bushing 2 is arranged in the first connecting pipe 11, one end of the first bushing 2 for abutting against the counterpiece is provided with a first concave-convex structure 41; a second bushing 3, the second bushing 3 is arranged in the second connecting pipe 12, one end of the second bushing 3 for abutting against the counterpiece is provided with a second concave-convex structure 51.

[0039] In the embodiments of the present application, one end of the first bushing 2 and the second bushing 3 for abutting against the counterpiece is provided with a concave-convex structure, that is, one end of the first bushing 2 abuts against the counterpiece through the concave-convex structure, the other end of the first bushing 2 directly abuts against the counterpiece, one end of the second bushing 3 abuts against the counterpiece through the concave-convex structure, the other end of the second bushing 3 directly abuts against the counterpiece, only one end of the bushing is provided with a concave-convex structure, that is, on the basis of increasing the friction between the bushing and the counterpiece, compared with the structure that both ends of the bushing are respectively provided with a concave-convex structure, the assembly tolerance between the bushing and the counterpiece is reduced, and then the clamping force is reduced. The above-mentioned scheme solves the technical problem of insufficient clamping force between the H-arm bushing and the counterpiece in the prior art.

[0040] Exemplarily, in the embodiment of the present application, the first connecting pipe 11 is connected with the vehicle frame through the first bushing 2, and the second connecting pipe 12 is connected with the vehicle frame through the second bushing 3.

[0041] Further, as shown in Figure 2 , Figure 3 , the axis of the first bushing 2 and the axis of the second bushing 3 both extend along the length direction of the vehicle, the first bushing 2 is arranged close to the front direction of the vehicle, the second bushing 3 is arranged close to the rear direction of the vehicle, the first concave-convex structure 41 is located at the front end of the first bushing 2, and the second concave-convex structure 51 is located at the rear end of the second bushing 3.

[0042] In the embodiment of the present application, the first bushing 2 is arranged close to the front direction of the vehicle, and the second bushing 3 is arranged close to the rear direction of the vehicle, that is, the first bushing 2 serves as a front bushing, and the second bushing 3 serves as a rear bushing, the first concave-convex structure 41 is located at the front end of the front bushing, and the second concave-convex structure 51 is located at the rear end of the rear bushing, when the H-arm assembly is subjected to the forward force of the vehicle frame, the first concave-convex structure 41 is abutted and limited with the vehicle frame, further increasing the friction between the first bushing 2 and the vehicle frame, when the H-arm assembly is subjected to the forward force of the vehicle frame, the second concave-convex structure 51 is abutted and limited with the vehicle frame, further increasing the friction between the first bushing 2 and the vehicle frame, thereby avoiding the loosening of the bushing and the counterpiece due to the axial force.

[0043] Further, as shown in Figure 1 , the first concave-convex structure 41 is formed on the first gasket 4, the first gasket 4 is connected with the first bushing 2, and / or the second concave-convex structure 51 is formed on the second gasket 5, the second gasket 5 is connected with the second bushing 3.

[0044] In the embodiment of the present application, the first concave-convex structure 41 is formed on the first gasket 4, and the second concave-convex structure 51 is formed on the second gasket 5, that is, the first bushing 2 is abutted with the counterpiece through the first gasket 4, and the second bushing 3 is abutted with the counterpiece through the second gasket 5, which is convenient for processing and installation, and different gaskets can be selected according to different vehicle models.

[0045] Specifically, as shown in Figure 2 , one end of the first gasket 4 is connected with the first bushing 2, the other end of the first gasket 4 is provided with the first concave-convex structure 41, the first concave-convex structure 41 is a plurality of first convex ribs formed on the end face of the first gasket 4, and the plurality of first convex ribs are arranged at intervals along the circumferential direction of the first gasket 4.

[0046] Specifically, as shown in Figure 3As shown, one end of the second gasket 5 is connected with the second bushing 3, and the other end of the second gasket 5 is provided with a second concave-convex structure 51, which is a plurality of second convex ribs formed on the end face of the second gasket 5 and arranged at intervals along the circumference of the second gasket 5.

[0047] Further, the front end of the first bushing 2 is provided with a first limiting structure connected with the front end face of the first connecting pipe 11.

[0048] In the embodiment of the present application, the first limiting structure is arranged to avoid relative movement between the first bushing 2 and the first connecting pipe 11 when the first bushing 2 bears a forward impact force, thereby improving the axial durability of the H-arm assembly.

[0049] For example, when the vehicle is in an emergency braking scenario or a high-speed driving scenario encountering a road surface with unevenness, the center of gravity of the vehicle moves forward, and the first bushing 2 abuts against the first connecting pipe 11 through the first limiting structure to prevent excessive displacement of the H-arm body 1, thereby maintaining the stability of the vehicle and the reliability of the suspension system.

[0050] Specifically, the first limiting structure is a first flange 211 formed on the first outer pipe 21 of the first bushing 2 and arranged to extend along the circumference of the first outer pipe 21.

[0051] As Figure 4 shown, the first bushing 2 includes a first outer pipe 21, a first inner pipe 22, and a first rubber body 23 connected between the first outer pipe 21 and the first inner pipe 22, and the front end face of the first outer pipe 21 is provided with a first flange 211 abutting against the end face of the first connecting pipe 11.

[0052] Further, the front end of the second bushing 3 is provided with a second limiting structure connected with the rear end face of the second connecting pipe 12.

[0053] In the embodiment of the present application, the second limiting structure is arranged to avoid relative movement between the second bushing 3 and the second connecting pipe 12 when the second bushing 3 bears a backward impact force, thereby improving the axial durability of the H-arm assembly.

[0054] For example, when the vehicle is in an emergency acceleration scenario or encounters a front impact, the second bushing 3 abuts against the second connecting pipe 12 through the second limiting structure to prevent excessive displacement of the H-arm body 1, thereby maintaining the stability of the vehicle and the reliability of the suspension system.

[0055] Specifically, the second limiting structure is a second flange 311 formed on the second outer pipe 31 of the second bushing 3 and arranged to extend along the circumference of the second outer pipe 31.

[0056] AsFigure 5 As shown, the second bushing 3 comprises a second outer tube 31, a second inner tube 32 and a second rubber body 33, the second rubber body 33 being connected between the second outer tube 31 and the second inner tube 32, and the front end surface of the second outer tube 31 is provided with a second flange 311 abutting against the end surface of the second connecting tube 12.

[0057] Further, the H-arm body 1 is made by liquid die forging process, and the specific process is as follows: first, the metal material is heated to liquid state, and then the liquid metal is precisely injected into a specially customized H-arm mold under high pressure environment. In this process, through precise control of temperature and pressure, the metal can be quickly solidified inside the mold, thereby forming an H-arm body with high density and high strength characteristics.

[0058] Compared with the low-pressure casting process commonly used in H-arm manufacturing, the liquid die forging process has obvious advantages. The liquid die forging process can greatly reduce the pores and defects existing in the material, which greatly improves the overall performance of the parts. Moreover, the metal material used in the liquid die forging process has excellent performance, with a yield strength of 260 MPa, a tensile strength of 320 MPa, and an elongation of 8%. These performance indicators are significantly better than the materials currently used in H-arm manufacturing by low-pressure casting process (the yield strength of low-pressure casting process material is 220 MPa, the tensile strength is 280 MPa, and the elongation is 7%). The positive effect of this advantage is that, without affecting the strength of the H-arm, the wall thickness can be appropriately reduced in the design stage to reduce the amount of material used, thereby achieving a significant weight reduction effect. Moreover, due to the improvement of material performance, the H-arm can achieve lightweight while still maintaining sufficient strength and toughness, fully meeting the use requirements of vehicles in various working conditions. From the perspective of the whole vehicle, a lighter H-arm has many positive effects on the vehicle. It can significantly improve the handling performance of the vehicle, making the vehicle more flexible and stable when turning, accelerating and braking. Lightweight design helps to reduce the energy consumption of the vehicle, improve the economy of the vehicle, and also has a positive effect on the overall comfort of the vehicle.

[0059] According to another specific embodiment of the present application, a vehicle is also provided, which comprises the H-arm assembly in the above embodiments.

[0060] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical", "horizontal", and derivatives thereof (e.g., "vertical ly", "horizontal ly", etc.) can refer to the relative positions of an apparatus or feature as shown in the drawings, and shall not be construed as limiting the present application to any particular spatial orientation. Furthermore, the terms "first", "second", third", etc. merely identify one of a number of similar features or steps in an embodiment, and are not intended to denote a spatial or chronological priority of such features or steps to one another. The terms "comprise", "comprising", "include", "including", and the like, as used herein, are specifically intended to be construed as open-ended terms (i.e., the terms do not exclude the presence of other elements or steps). It is specifically intended that any total number or range of steps or components to be

[0061] In addition, it should be understood that any numerical range recited herein includes all values from the lower and upper limits of that range. For example, if a concentration range is stated as 1% to 50%, it is intended that values ranging from 1% to 50%, such as 20%, are expressly enumerated. It is also understood that the endpoints of the ranges are not significant and are intended to be merely illustrative of the range. It must be noted that, as used in the specification and the appended claims, the singular form "a", "an" and "the" include plural references unless the context clearly dictates otherwise. It is further understood that the terms "comprising", "comprises" and "comprised of" as used herein are specifically intended to be construed as "open ended" terms (i.e., the terms do not exclude the presence of additional elements or steps). All publications and patent documents cited herein are incorporated by reference in their entirety.

[0062] In the above embodiments, the description of each embodiment is focused on a certain aspect. The description of a certain embodiment not detailed in a certain aspect can be found in the description of other embodiments.

[0063] The preferred embodiments of the application are described above in detail. The application is not limited to the embodiments described herein but can vary within the scope of the present application, whose parameters are defined by the claims. Any modification, equivalent replacement or improvement made within the spirit and principle of the application shall fall within the scope of the present application.

Claims

1. An H-arm assembly, characterized in that, include: H-arm body (1), the H-arm body (1) is provided with a first connecting pipe (11) and a second connecting pipe (12), the first connecting pipe (11) and the second connecting pipe (12) are spaced apart along the length direction of the H-arm body (1); The first bushing (2) is located inside the first connecting pipe (11), and one end of the first bushing (2) that is used to abut against the opponent is provided with a first concave-convex structure (41). The second bushing (3) is located inside the second connecting pipe (12), and one end of the second bushing (3) that is used to abut against the opponent is provided with a second concave-convex structure (51).

2. The H-arm assembly according to claim 1, characterized in that, The axis of the first bushing (2) and the axis of the second bushing (3) are both extended along the length of the vehicle. The first bushing (2) is located near the front of the vehicle, and the second bushing (3) is located near the rear of the vehicle. The first concave-convex structure (41) is located at the front end of the first bushing (2), and the second concave-convex structure (51) is located at the rear end of the second bushing (3).

3. The H-arm assembly according to claim 1 or 2, characterized in that, The first concave-convex structure (41) is formed on the first gasket (4), the first gasket (4) is connected to the first bushing (2), and / or, the second concave-convex structure (51) is formed on the second gasket (5), the second gasket (5) is connected to the second bushing (3).

4. The H-arm assembly according to claim 3, characterized in that, One end of the first gasket (4) is connected to the first bushing (2), and the other end of the first gasket (4) is provided with the first concave-convex structure (41). The first concave-convex structure (41) is a plurality of first convex ribs formed on the end face of the first gasket (4). The plurality of first convex ribs are arranged at intervals along the circumference of the first gasket (4).

5. The H-arm assembly according to claim 3, characterized in that, One end of the second gasket (5) is connected to the second bushing (3), and the other end of the second gasket (5) is provided with the second concave-convex structure (51). The second concave-convex structure (51) is a plurality of second convex ribs formed on the end face of the second gasket (5). The plurality of second convex ribs are arranged at intervals along the circumference of the second gasket (5).

6. The H-arm assembly according to claim 2, characterized in that, The first bushing (2) has a first limiting structure at its front end, and the first limiting structure is connected to the front end face of the first connecting pipe (11).

7. The H-arm assembly according to claim 6, characterized in that, The first limiting structure is a first flange (211) formed on the first outer tube (21) of the first bushing (2), and the first flange (211) extends circumferentially along the first outer tube (21).

8. The H-arm assembly according to claim 2, characterized in that, The front end of the second bushing (3) is provided with a second limiting structure, which is connected to the rear end face of the second connecting pipe (12).

9. The H-arm assembly according to claim 8, characterized in that, The second limiting structure is a second flange (311) formed on the second outer tube (31) of the second bushing (3), and the second flange (311) extends circumferentially along the second outer tube (31).

10. A vehicle, characterized in that, The vehicle includes the H-arm assembly as described in any one of claims 1 to 9.

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