Connecting assembly and frame

Abstract

The utility model discloses a connecting assembly and a frame, the connecting assembly comprises at least one first connecting arm and a connecting bolt, and each first connecting arm is provided with at least one first connecting hole; the multiple connecting bolts penetrate through the first connecting holes. According to the connecting assembly disclosed by the utility model, the first connecting arm is arranged between the at least two connecting bolts to optimize the structure, so that the acting force of the connecting bolts can be dispersed through the first connecting arm on the premise that the pressure between the contact surfaces is equivalent, further the uniformity of the pressure between the contact surfaces of the connecting bolts is improved, and the service life of the connecting assembly is prolonged. The contact area is increased, the friction force between assembly parts is improved, the shear resistance of the connecting assembly is enhanced, and the overall connecting performance of connecting parts is improved, so that the bolt specification can be reduced, the bolt use number can be reduced, and the effects of reducing weight and reducing cost are directly achieved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and more specifically, to a connecting component and a vehicle frame. Background Technology

[0002] The chassis is one of the most critical components of medium and heavy-duty commercial vehicles. It not only supports almost all the key components of the vehicle but also bears the entire weight of the load, while transmitting driving and braking forces, playing a vital role in the performance and safety of the entire vehicle. Therefore, the design and manufacturing of the chassis must balance multiple objectives such as strength, rigidity, and lightweighting.

[0003] In the assembly of the vehicle frame assembly, bolted connections are one of the primary connection methods. Operators control the preload of the bolts to generate sufficient friction between the assembled parts to withstand lateral loads and ensure structural stability. However, due to factors such as stress conditions and functional requirements, traditional designs often meet technical requirements by increasing the number and specifications of bolts. While this design approach can meet strength requirements, it also introduces numerous problems, such as a large number of bolts, higher bolt specifications, increased system weight, and higher costs.

[0004] Therefore, how to improve the connection performance of bolts and thus reduce the amount of bolts used has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a connecting component to improve the connection performance of bolts and reduce the amount of bolts used.

[0006] Another objective of this invention is to provide a vehicle frame including the aforementioned connecting components.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A connection component, comprising:

[0009] The first connecting arm, there is at least one first connecting arm, and each first connecting arm is provided with at least one first connecting hole;

[0010] There are multiple connecting bolts, all of which pass through the first connecting hole.

[0011] Optionally, in the above-mentioned connecting assembly, the first connecting arm is provided with a first connecting hole, and the first connecting hole is a strip-shaped hole arranged along the extension direction of the first connecting arm, and each of the connecting bolts is respectively inserted into different positions of the first connecting hole along the extension direction of the first connecting arm.

[0012] Alternatively, the first connecting arm may be provided with a plurality of first connecting holes, each of the first connecting holes being arranged at intervals along the extension direction of the first connecting arm, and each of the connecting bolts passing through each of the first connecting holes in a corresponding manner.

[0013] Optionally, in the above-described connecting assembly, at least one arc-shaped protrusion is provided on the first connecting arm, and each of the first connecting holes is correspondingly provided on each of the arc-shaped protrusions.

[0014] Optionally, in the above-described connecting assembly, the first connecting hole is a circular hole or an oblong hole;

[0015] And / or, the side of the first connecting arm has a wavy structure.

[0016] Optionally, in the above-described connecting assembly, there are multiple first connecting arms, and the number of first connecting holes on different first connecting arms may be the same or different, and the extension length of different first connecting arms may be the same or different.

[0017] Optionally, the connection assembly described above further includes a second connection arm, which is connected between two adjacent first connection arms.

[0018] Optionally, in the above-described connecting assembly, the first direction is perpendicular to the second direction, the first connecting arms all extend along the first direction, and the angle between the second connecting arm and the second direction is greater than or equal to 0 and less than 90°.

[0019] Optionally, in the above-described connecting assembly, both ends of the second connecting arm are provided with second connecting holes, the second connecting holes communicate with the first connecting holes, and the connecting bolt passes through the second connecting holes.

[0020] Optionally, in the above-described connecting assembly, the first connecting arm is provided with a wire harness mounting hole for fixing the wire harness.

[0021] A vehicle frame includes a crossbeam assembly, a longitudinal beam assembly, and the aforementioned connecting components. The crossbeam assembly and the longitudinal beam assembly are respectively provided with a third connecting hole and a fourth connecting hole. A first connecting arm is fitted onto the crossbeam assembly or the longitudinal beam assembly, and the connecting bolt passes through the third connecting hole and the fourth connecting hole.

[0022] The connecting assembly provided by this utility model includes a first connecting arm and connecting bolts. There is at least one first connecting arm, and each first connecting arm has at least one first connecting hole. There are multiple connecting bolts, all passing through the first connecting holes. The two components to be connected are defined as a first component and a second component, respectively. Multiple third connecting holes and multiple fourth connecting holes are respectively provided on the first and second components. During assembly, the third and fourth connecting holes on the first and second components are aligned one by one. Then, the first connecting arm is fitted onto the first component, ensuring that the first connecting hole communicates with each of the third connecting holes. At this point, connecting bolts can be screwed into the first connecting holes. The connecting bolts pass through the first, third, and fourth connecting holes sequentially, and are tightened with the fourth connecting hole by thread or by tightening with a nut to achieve connection. After connection, the force of the connecting bolts can be transmitted to the first component through the first connecting arm.

[0023] Compared to existing technologies where connecting bolts are used as independent mechanical connections, the connecting assembly provided by this utility model optimizes the structure by setting a first connecting arm between at least two connecting bolts. Under the premise that the pressure between the contact surfaces is equal, the force of the connecting bolts can be dispersed through the first connecting arm, thereby improving the uniformity of pressure between the contact surfaces of the connecting bolts, increasing the contact area, improving the friction between assembled parts, enhancing the shear resistance of the connecting assembly, and improving the overall connection performance of the connection part. As a result, the bolt specifications can be reduced, the number of bolts used can be reduced, and the effect of weight reduction and cost reduction can be directly achieved.

[0024] The frame provided by this utility model includes a crossbeam assembly, a longitudinal beam assembly, and the aforementioned connecting components. The crossbeam assembly and the longitudinal beam assembly are respectively provided with a third connecting hole and a fourth connecting hole. A first connecting arm is fitted onto the crossbeam assembly or the longitudinal beam assembly. Connecting bolts pass through the third connecting hole and the fourth connecting hole to achieve the connection between the crossbeam assembly and the longitudinal beam assembly. Because it includes the aforementioned connecting components, it also possesses the aforementioned structure and beneficial effects. Other structural features are described in the prior art and will not be repeated here. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the connecting component disclosed in an embodiment of the present utility model;

[0027] Figure 2 forFigure 1 Cross-sectional view at point AA;

[0028] Figure 3 for Figure 1 Cross-sectional view at point BB;

[0029] Figure 4 This is a schematic diagram of the connection components disclosed in the embodiments of this utility model. Figure 1 ;

[0030] Figure 5 This is a schematic diagram of the connection components disclosed in the embodiments of this utility model. Figure 2 ;

[0031] Figure 6 This is a schematic diagram of the arrangement structure of the first type of connecting component disclosed in the embodiment of this utility model;

[0032] Figure 7 This is a schematic diagram of the arrangement structure of the second type of connecting component disclosed in an embodiment of the present utility model;

[0033] Figure 8 This is a schematic diagram of the arrangement structure of the third connecting component disclosed in the embodiment of this utility model;

[0034] Figure 9 This is a schematic diagram of the arrangement structure of the fourth connecting component disclosed in the embodiment of this utility model;

[0035] Figure 10 This is a schematic diagram of the arrangement structure of the fifth type of connecting component disclosed in the embodiments of this utility model;

[0036] Figure 11 This is a schematic diagram of the arrangement structure of the sixth connecting component disclosed in the embodiment of this utility model.

[0037] Wherein, 100 is the first connecting arm, 101 is the first connecting hole, 102 is the weight reduction groove, 103 is the wire harness mounting hole, 104 is the arc-shaped protrusion, and 110 is the second connecting arm.

[0038] 200 is for connecting bolts;

[0039] 300 is the first component;

[0040] 400 is the second component. Detailed Implementation

[0041] The core of this utility model lies in disclosing a connecting component to improve the connection performance of bolts and reduce the amount of bolts used.

[0042] Another key aspect of this invention is the disclosure of a vehicle frame that includes the aforementioned connecting components.

[0043] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the utility model as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the utility model as described in the claims. It should be noted that, for ease of description, only the parts relevant to the utility model are shown in the drawings. Unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0044] Combination Figures 1-11 The connecting component disclosed in this utility model includes a first connecting arm 100 and a connecting bolt 200. There is at least one first connecting arm 100, and each first connecting arm 100 is provided with at least one first connecting hole 101. There are multiple connecting bolts 200, and they all pass through the first connecting holes 101.

[0045] The two components to be connected are defined as the first component 300 and the second component 400. Multiple third connecting holes and multiple fourth connecting holes are respectively provided on the first component 300 and the second component 400. During assembly, the third connecting holes and fourth connecting holes on the first component 300 and the second component 400 are aligned one by one. Then, the first connecting arm 100 is fitted onto the first component 300, ensuring that the first connecting hole 101 is connected to each of the third connecting holes. At this point, a connecting bolt 200 can be screwed into the first connecting hole 101. The connecting bolt 200 passes through the first connecting hole 101, the third connecting hole, and the fourth connecting hole in sequence, and is tightened with the thread of the fourth connecting hole or by tightening with a nut to achieve connection. After connection, the force of the connecting bolt 200 can be transmitted to the first component 300 through the first connecting arm 100.

[0046] Compared to the existing technology where the connecting bolts 200 are used as independent mechanical connections, the connecting assembly disclosed in this utility model optimizes the structure by setting a first connecting arm 100 between at least two connecting bolts 200. Under the premise that the pressure between the contact surfaces is equal, the force of the connecting bolts 200 can be dispersed through the first connecting arm 100, thereby improving the uniformity of the pressure between the contact surfaces of the connecting bolts 200, increasing the contact area, improving the friction between assembled parts, enhancing the shear resistance of the connecting assembly, and improving the overall connection performance of the connection part. As a result, the bolt specifications can be reduced, the number of bolts used can be reduced, and the effect of weight reduction and cost reduction can be directly achieved.

[0047] For example, in combination Figure 1 and Figure 4In existing connection solutions, in addition to the connecting bolts 200 at the solid line positions in the figure, connecting bolts 200 at the dashed line positions are also required. However, in the connection assembly disclosed in this utility model, only the connecting bolts 200 at the solid line positions need to be arranged. Figure 1 The layout plan is expected to achieve a weight reduction of approximately 30% and a cost reduction of over 40%; through Figure 4 The proposed layout is expected to reduce weight by approximately 20% and costs by over 30%.

[0048] The first connecting arm 100 mentioned above can be made of thin-walled material to balance weight and cost requirements.

[0049] In some embodiments disclosed in this application, combined with Figure 1 The first connecting arm 100 is provided with a first connecting hole 101, and the first connecting hole 101 is a strip-shaped hole arranged along the extension direction of the first connecting arm 100. Along the extension direction of the first connecting arm 100, each connecting bolt 200 is respectively inserted at a different position in the first connecting hole 101, that is, each connecting bolt 200 shares a first connecting hole 101. This strip-shaped structure of the first connecting hole 101 facilitates the position adjustment of each connecting bolt 200, and the structure is simple and easy to manufacture and process, while effectively reducing the weight of the first connecting arm 100.

[0050] In some other embodiments disclosed in this application, the first connecting arm 100 is provided with a plurality of first connecting holes 101, and each first connecting hole 101 is arranged at intervals along the extension direction of the first connecting arm 100. Each connecting bolt 200 passes through each first connecting hole 101 in a corresponding manner, thereby realizing the positioning and assembly of the connecting bolt 200. In this embodiment, the first connecting arm 100 and each connecting bolt 200 can be pre-assembled, thereby improving the production efficiency of on-site assembly.

[0051] The first connecting hole 101 can be a circular hole or an oblong hole. The circular hole has a regular shape and is subjected to uniform force. The oblong hole is arranged along the extension direction of the first connecting arm 100 or other directions, which allows for fine adjustment of the position of the connecting bolt 200, thereby helping the connecting bolt 200 to be more accurately aligned during the assembly process and improving the convenience of assembly.

[0052] Further optimize the plan, combined with Figure 2At least one arc-shaped protrusion 104 is provided on the first connecting arm 100, and first connecting holes 101 are correspondingly provided on each arc-shaped protrusion 104. The shape of the arc-shaped protrusion 104 is adapted to the shape of each first connecting hole 101, and can be elongated or circular. During assembly, the protruding side of the arc-shaped protrusion 104 faces the head of the connecting bolt 200, and the recessed side faces the part to be connected, so as to act as an anti-loosening washer, making it easier for operators to detect the initial loosening of the connecting bolt 200, thereby facilitating the inspection of process quality and improving the connection performance of the connecting assembly.

[0053] In a specific embodiment of the present invention, the connecting component further includes a second connecting arm 110, which is connected between two adjacent first connecting arms 100 to support and connect the first connecting arms 100 and improve the structural strength of the connecting component.

[0054] Specifically, if the first direction is defined as perpendicular to the second direction, then all first connecting arms 100 extend along the first direction, and the angle between the second connecting arm 110 and the second direction is greater than or equal to 0 and less than 90°. In this embodiment, by setting the second connecting arm 110, the connecting assembly can form multiple closed frame structures, thereby improving the overall structural rigidity of the connecting assembly. The shapes of the frame structures include, but are not limited to, triangles and rectangles, with triangular frame structures exhibiting stronger resistance to deformation.

[0055] Along the second direction, the first connecting holes 101 on the two first connecting arms 100 can be arranged opposite to each other or staggered, and correspondingly, a variety of frame structures can be formed.

[0056] To reduce production costs, the second connecting arm 110 has second connecting holes at both ends, through which connecting bolts 200 can pass to connect the first connecting arm 100 and the second connecting arm 110, which are then pressed together onto the first component 300. This design is simple and easy to manufacture. In other embodiments, the first connecting arm 100 and the second connecting arm 110 are directly welded together, which improves on-site assembly efficiency.

[0057] Weight reduction can be achieved by setting various shapes of weight-reducing grooves 102 on the first connecting arm 100 and the second connecting arm 110 through topology optimization without affecting the overall connection strength. For example, combined with... Figure 1 Multiple weight-reducing grooves 102 can be provided on the circumferential sidewall of the first connecting arm 100, thereby making the edge of the first connecting arm 100 have a wavy structure, thus achieving weight reduction of the overall structure.

[0058] Those skilled in the art will understand that there are multiple first connecting arms 100, and the number of first connecting holes 101 on different first connecting arms 100 may be the same or different. The appropriate first connecting arm 100 can be selected for use according to the actual application scenario. The spacing between two adjacent first connecting holes 101 on each first connecting arm 100 may be the same or different. Depending on the specifications of the connecting bolts 200 used, the dimensions of different first connecting holes 101 may be the same or different. The extension lengths of different first connecting arms 100 may be the same or different. The connecting assembly disclosed in this utility model can be customized according to performance requirements and usage scenarios, thereby determining the dimensions of the first connecting arm 100 and the specifications and number of the connecting bolts 200.

[0059] Furthermore, taking the application scenario of connecting components on a vehicle frame as an example, tools such as CAE (Computer-Aided Engineering) can be used to analyze and optimize the bolt arrangement and the shape of the assembly structure. Furthermore, a wiring harness mounting section for fixing the wiring harness can be integrated according to requirements, thereby reducing the number of system parts and optimizing system performance, achieving indirect weight reduction and cost reduction. For example, combining... Figure 1 and Figure 3 A wire harness mounting hole 103 is provided on the first connecting arm 100. The wire harness mounting hole 103 can function as a wire harness mounting bracket to install the wire harness, thereby realizing the functional integration of the first connecting arm 100, reducing the number of parts, reducing weight and cost. The position and number of wire harness mounting holes 103 can be configured and adjusted according to the actual situation.

[0060] The connecting component disclosed in this utility model has a simple, direct, and effective structure. It can be applied to different performance targets and design requirements based on actual needs. By using CAE and other tools to analyze and optimize the arrangement of connecting bolts 200, reduce the number of connecting bolts 200 used, and lower their specification level while meeting connection performance requirements, it achieves weight reduction and cost reduction. At the same time, this utility model can pre-assemble the first connecting arm 100 and connecting bolts 200, thereby shortening the installation time and simplifying the process. In addition, the connecting component disclosed in this utility model can be integrated with related parts as needed, such as by integrating parts such as frame wiring harness mounting brackets, reducing the number of parts and achieving secondary weight reduction and cost reduction.

[0061] Taking the application scenario of two rows of connecting bolts 200 tightly connected on the frame in the existing technology as an example for design, Figures 6-11The diagram shows the specific layout of some connecting components disclosed in this utility model, corresponding to schemes 1-6 in Table 1 below. Solid nodes represent connecting bolts 200, and hollow nodes represent connecting bolts 200 that can be eliminated compared to existing technologies. The lines connecting the solid nodes represent the first connecting arm 100 and the second connecting arm 110. Along the extension direction of the first connecting arm 100, the smallest repeatable combination structure (the structure within the dashed box in the diagram) is considered a unit. The naming rule for different scheme types is that within a unit, starting from the lower left connecting node, the number of second connecting arms 110 at each connecting node is sequentially numbered clockwise (the first connecting arm 100 is not counted).

[0062] Table 1. Weight reduction and cost reduction results of connection components with different layout structures

[0063]

[0064] The different layout schemes in the table above are all based on the premise of not reducing performance, and combine CAE analysis to achieve system function integration and structural optimization, while achieving the purpose of weight reduction and cost reduction, which has significant economic benefits; the connection components disclosed in this utility model can be flexibly optimized according to design requirements and analysis results, and are not limited to the six types in the table.

[0065] The vehicle frame disclosed in this utility model includes a crossbeam assembly, a longitudinal beam assembly, and the aforementioned connecting components. The crossbeam assembly and the longitudinal beam assembly are respectively provided with a third connecting hole and a fourth connecting hole. A first connecting arm 100 is fitted onto the crossbeam assembly or the longitudinal beam assembly. A connecting bolt 200 passes through the third connecting hole and the fourth connecting hole to achieve the connection between the crossbeam assembly and the longitudinal beam assembly. Because it includes the aforementioned connecting components, it also possesses the aforementioned structure and beneficial effects. Other structural details are based on existing technology and will not be elaborated upon here.

[0066] It should be noted that the connecting component disclosed in this utility model can be used in the field of vehicle technology or other fields, where "other fields" refers to any field other than vehicle technology. The above is merely an example and does not limit the application field of the connecting component disclosed in this utility model.

[0067] The terms "first" and "second," etc., used in the specification and claims of this utility model are used to distinguish different objects, not to describe a specific order, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed.

[0068] In the description of this utility model, "multiple" means two or more, and "at least one" means one, two, or more, unless otherwise explicitly specified. In the description of this utility model, "parallel" means completely parallel or nearly completely parallel; for example, parallelism is considered to be within a 10° range of complete parallelism.

[0069] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment without being explicitly excluded by another embodiment. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connecting component, characterized in that, include: The first connecting arm (100) is at least one, and each of the first connecting arms (100) is provided with at least one first connecting hole (101). There are multiple connecting bolts (200), all of which pass through the first connecting hole (101).

2. The connection component as claimed in claim 1, characterized in that, The first connecting arm (100) is provided with a first connecting hole (101), and the first connecting hole (101) is a strip-shaped hole arranged along the extension direction of the first connecting arm (100). Along the extension direction of the first connecting arm (100), each of the connecting bolts (200) is respectively inserted at different positions in the first connecting hole (101). Alternatively, the first connecting arm (100) is provided with a plurality of first connecting holes (101), each of the first connecting holes (101) is arranged at intervals along the extension direction of the first connecting arm (100), and each of the connecting bolts (200) passes through each of the first connecting holes (101) in a corresponding manner.

3. The connection component as claimed in claim 1, characterized in that, At least one arc-shaped protrusion (104) is provided on the first connecting arm (100), and each of the first connecting holes (101) is provided on each of the arc-shaped protrusions (104).

4. The connection component as claimed in claim 1, characterized in that, The first connecting hole (101) is a circular hole or an oblong hole; And / or, the side of the first connecting arm (100) has a wavy structure.

5. The connection component as claimed in claim 1, characterized in that, There are multiple first connecting arms (100), and the number of first connecting holes (101) on different first connecting arms (100) may be the same or different, and the extension length of different first connecting arms (100) may be the same or different.

6. The connecting component as described in any one of claims 1-5, characterized in that, It also includes a second connecting arm (110) that connects between two adjacent first connecting arms (100).

7. The connection component as claimed in claim 6, characterized in that, The first direction is perpendicular to the second direction, the first connecting arm (100) extends along the first direction, and the angle between the second connecting arm (110) and the second direction is greater than or equal to 0 and less than 90°.

8. The connection component as claimed in claim 7, characterized in that, The second connecting arm (110) has a second connecting hole at both ends. The second connecting hole communicates with the first connecting hole (101), and the connecting bolt (200) passes through the second connecting hole.

9. The connecting component as described in any one of claims 1-5, characterized in that, The first connecting arm (100) is provided with a wire harness mounting hole (103), which is used to fix the wire harness.

10. A vehicle frame, characterized in that, The assembly includes a crossbeam assembly, a longitudinal beam assembly, and a connecting component as described in any one of claims 1-9. The crossbeam assembly and the longitudinal beam assembly are respectively provided with a third connecting hole and a fourth connecting hole. The first connecting arm (100) is fitted onto the crossbeam assembly or the longitudinal beam assembly, and the connecting bolt (200) passes through the third connecting hole and the fourth connecting hole.

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