CN216915513U

CN216915513U - Automobile exhaust pipe mounting point dynamic stiffness lifting structure and automobile

Info

Publication number: CN216915513U
Application number: CN202220593383.8U
Authority: CN
Inventors: 金建利
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-08
Anticipated expiration: 2032-03-18

Abstract

The utility model provides a dynamic stiffness lifting structure of an automobile exhaust pipe mounting point and an automobile, wherein the dynamic stiffness lifting structure comprises a bent column, one end of the bent column is connected to a first exhaust lifting hook of an automobile body, and the other end of the bent column is connected to a second exhaust lifting hook of the automobile body, so that the first exhaust lifting hook and the second exhaust lifting hook are connected; the middle section of the bent column is fixedly connected to a vehicle body longitudinal beam; according to the improvement scheme provided by the utility model, a bent column is adopted, two ends of the bent column are welded, two exhaust lifting hooks are simultaneously connected, and the bent column is welded to a longitudinal beam of a vehicle body at the middle section of the bent column, so that the integration of the two exhaust lifting hooks is realized; meanwhile, the shape of the bent column can be properly adjusted according to the position of the exhaust lifting hook, and the exhaust lifting hook has universality; the structure provided by the utility model can effectively improve the dynamic stiffness of the exhaust lifting hook, reduce the noise level in the vehicle, and has the advantages of low cost and easiness in implementation.

Description

Automobile exhaust pipe mounting point dynamic stiffness lifting structure and automobile

Technical Field

The utility model belongs to the technical field of a mounting point dynamic stiffness improving structure of an automobile exhaust pipe, and particularly relates to a mounting point dynamic stiffness improving structure of an automobile exhaust pipe and an automobile.

Background

In the existing automobile, an exhaust system is generally connected with an automobile body through a hook, when the automobile runs, a vibration excitation load generated by an engine can be transmitted to the exhaust system, meanwhile, exhaust gas flows in the exhaust system and impacts an exhaust pipe, so that the exhaust system can transmit vibration excitation to the automobile body through an automobile body system to cause the vibration of the automobile body floor; the vibration excitation can radiate noise in the vehicle, thereby influencing the riding comfort; if a good vibration isolation effect is to be obtained, the exhaust system needs to reasonably design the vibration isolation elements and also needs to reasonably design the vibration isolation element connecting pieces, namely the lifting hooks, and particularly the dynamic stiffness of the lifting hooks needs to meet the requirements.

In actual working conditions, the vibration isolation system can realize effective vibration isolation only after the dynamic stiffness ratio between the lifting hooks at the vehicle body side and the exhaust side and the dynamic stiffness ratio between the vibration isolation elements meet certain conditions; therefore, various practical factors are comprehensively considered in the initial stage of automobile design, and the dynamic stiffness of the lifting hook is controlled within a reasonable range.

Some existing automobile body side lifting hook design schemes are that lifting hooks are welded directly on the automobile body side, and because the automobile body side metal plate is weaker, the lifting hooks can be caused to vibrate along with the automobile body metal plate by a large margin, the cost is remarkably increased due to the fact that the thickness of the metal plate is increased, the rigidity improvement effect near the welding of the lifting hooks is not ideal, and the noise is large.

Based on the technical problems existing in the lifting hook at the exhaust side of the automobile, no relevant solution is provided; there is therefore a pressing need to find effective solutions to the above problems.

Disclosure of Invention

The utility model aims to provide a dynamic stiffness improving structure of an automobile exhaust pipe mounting point and an automobile aiming at overcoming the defects in the prior art, and aims to solve the problem that the existing exhaust pipe lifting hook is insufficient in connection stiffness.

The utility model provides a dynamic stiffness lifting structure of an automobile exhaust pipe mounting point, which comprises a bent column, wherein one end of the bent column is connected to a first exhaust lifting hook of an automobile body, and the other end of the bent column is connected to a second exhaust lifting hook of the automobile body, so that the first exhaust lifting hook and the second exhaust lifting hook are connected; the middle section of the bent column is fixedly connected to the vehicle body longitudinal beam.

Furthermore, one section of the bending angle in the middle of the bent column is welded and fixed on the vehicle body longitudinal beam and forms an integral structure with the vehicle body longitudinal beam.

Furthermore, the one end of bending post welds in the quarter bend position of first exhaust lifting hook, and the other end of bending post welds in the quarter bend position of second exhaust lifting hook.

Furthermore, the axis of one end of the bent column is parallel or coaxial with the axis of the first exhaust hook; the axis of the other end of the bent column is parallel to or coaxial with the axis of the second exhaust hook.

Further, the axes of the two ends of the bent column and the axis of the middle section of the bent column are not on the same plane.

Furthermore, the bent column, the first exhaust lifting hook and the second exhaust lifting hook are all aluminum pipes or steel pipes or copper pipes.

Furthermore, the first exhaust hook and the second exhaust hook are welded and fixed on two sides of the vehicle body longitudinal beam respectively.

Further, the other ends of the first exhaust hook and the second exhaust hook extend outward in different directions.

Further, the diameter of the bent column is the same as the diameter of the first and second exhaust hooks.

Correspondingly, the utility model further provides an automobile which comprises the exhaust pipe mounting point dynamic stiffness improving structure.

According to the improvement scheme provided by the utility model, a bent column is adopted, two ends of the bent column are welded, two exhaust lifting hooks are simultaneously connected, and the middle section of the bent column is welded on a vehicle body longitudinal beam, so that the integration of the two exhaust lifting hooks is realized; meanwhile, the shape of the bent column can be properly adjusted according to the position of the exhaust lifting hook, and the exhaust lifting hook has universality; the structure provided by the utility model can effectively improve the dynamic stiffness of the exhaust lifting hook, reduce the noise level in the vehicle, and has the advantages of low cost and easiness in implementation.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model will be further described with reference to the accompanying drawings:

FIG. 1 is a schematic view of a prior art mounting point for an automotive exhaust pipe;

FIG. 2 is a schematic view of the structure for improving the dynamic stiffness of the mounting point of the exhaust pipe of the automobile.

In the figure: 1. a first exhaust hook; 2. a second exhaust hook; 3. a bent column; 4. a vehicle body side member.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 2, the present invention provides a dynamic stiffness enhancing structure for an automobile exhaust pipe mounting point, the dynamic stiffness enhancing structure comprises a bent column 3, one end of the bent column 3 is connected to a first exhaust hook 1 of a vehicle body, and the other end of the bent column 3 is connected to a second exhaust hook 2 of the vehicle body, so that the first exhaust hook 1 and the second exhaust hook 2 are connected with each other; the middle section of the bent column 3 is fixedly connected to a vehicle body longitudinal beam 4; adopt above-mentioned scheme, adopt a bending post to connect two exhaust lifting hooks simultaneously to weld on the automobile body longeron at bending post middle section, realize the integration of two exhaust lifting hooks, improve two exhaust lifting hooks's joint rigidity simultaneously, play effective effect to improving noise transmission.

Preferably, in combination with the above solution, as shown in fig. 2, a bending angle segment in the middle of the bent column 3 is welded and fixed on the vehicle body side member 4, and forms an integral structure with the vehicle body side member 4; furthermore, the bending shape of the bending column 3 can be properly adjusted according to the position of the lifting hook, and the universality is realized; the bent column has simple structure, easy processing and manufacture and low manufacturing cost.

Preferably, in combination with the above, as shown in fig. 2, one end of the bent column 3 is welded to the quarter-turn position of the first exhaust hook 1, and the other end of the bent column 3 is welded to the quarter-turn position of the second exhaust hook 2.

Preferably, in combination with the above solution, as shown in fig. 2, the axis of one end of the bent column 3 and the axis of the first exhaust hook 1 are parallel or coaxial; the axis of the other end of the bent column 3 and the axis of the second exhaust hook 2 are parallel or coaxial.

Preferably, in combination with the above solution, as shown in fig. 2, the axes of the two ends of the bent column 3 are not on the same plane with the axis of the middle section thereof.

Preferably, in combination with the above solution, as shown in fig. 2, specifically, the diameter of the bent column is the same as the diameters of the first exhaust hook 1 and the second exhaust hook 2, that is, the diameter of the bent column is the same as the diameters of the two exhaust hooks, and the material of the bent column can also be the same as the diameters of the two exhaust hooks, so that the bent column can be manufactured at the same time of manufacturing the hooks, which is convenient for drawing and processing; specifically, the bent column 3, the first exhaust hook and the second exhaust hook 2 are all aluminum tubes, steel tubes or copper tubes.

Preferably, in combination with the above solution, as shown in fig. 2, the first exhaust hook and the second exhaust hook 2 are welded and fixed to both sides of the vehicle body side member 4, respectively.

Preferably, in combination with the above scheme, as shown in fig. 2, the other ends of the first exhaust hook 1 and the second exhaust hook 2 extend outward in different directions, respectively.

Correspondingly, in combination with the above scheme, as shown in fig. 2, the utility model further provides an automobile, which comprises an exhaust pipe mounting point dynamic stiffness improving structure, wherein the exhaust pipe mounting point dynamic stiffness improving structure is the automobile exhaust pipe mounting point dynamic stiffness improving structure; by adopting the automobile exhaust pipe mounting point dynamic stiffness improving structure, the problem of vehicle type modification is easier to realize, the existing vehicle body structure is not required to be modified, and the noise level in the vehicle can be improved only by welding the bent column with the lifting hook and the vehicle body.

According to the improvement scheme provided by the utility model, a bent column is adopted, two ends of the bent column are welded, two exhaust lifting hooks are simultaneously connected, and the bent column is welded to a longitudinal beam of a vehicle body at the middle section of the bent column, so that the integration of the two exhaust lifting hooks is realized; meanwhile, the shape of the bent column can be properly adjusted according to the position of the exhaust lifting hook, and the exhaust lifting hook has universality; the structure provided by the utility model can effectively improve the dynamic stiffness of the exhaust lifting hook, reduce the noise level in the vehicle, and has the advantages of low cost and easiness in implementation.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the utility model. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims

1. The dynamic stiffness improving structure of the mounting point of the automobile exhaust pipe is characterized by comprising a bent column (3), wherein one end of the bent column (3) is connected to a first exhaust hook (1) of an automobile body, and the other end of the bent column (3) is connected to a second exhaust hook (2) of the automobile body, so that the first exhaust hook (1) is connected with the second exhaust hook (2); the middle section of the bent column (3) is fixedly connected to the vehicle body longitudinal beam (4).

2. The structure for improving the dynamic stiffness of the mounting point of the exhaust pipe of the automobile as claimed in claim 1, wherein a bending angle section in the middle of the bent column (3) is welded and fixed on the body longitudinal beam (4) and forms an integral structure with the body longitudinal beam (4).

3. The structure for improving the dynamic stiffness of the mounting point of the exhaust pipe of the automobile according to claim 1, wherein one end of the bent column (3) is welded to the quarter-turn position of the first exhaust hook (1), and the other end of the bent column (3) is welded to the quarter-turn position of the second exhaust hook (2).

4. The structure for improving the dynamic stiffness of the mounting point of the exhaust pipe of the automobile according to claim 1, wherein the axis of one end of the bent column (3) and the axis of the first exhaust hook (1) are parallel or coaxial with each other; and the axis of the other end of the bent column (3) is parallel to or coaxial with the axis of the second exhaust hook (2).

5. The structure for improving the dynamic stiffness of the mounting point of the exhaust pipe of the automobile as claimed in claim 1, wherein the axes of both ends of the bent pillar (3) are not on the same plane as the axis of the middle section thereof.

6. The structure for improving the dynamic stiffness of the mounting point of the automobile exhaust pipe as claimed in claim 1, wherein the bent column (3), the first exhaust hook and the second exhaust hook (2) are all aluminum pipes, steel pipes or copper pipes.

7. The exhaust pipe mounting point dynamic stiffness enhancing structure of an automobile according to claim 1, wherein the first exhaust hook and the second exhaust hook (2) are welded and fixed to both sides of the body side member (4), respectively.

8. The structure for improving the dynamic stiffness of the exhaust pipe mounting point of the automobile according to claim 1, wherein the other ends of the first exhaust hook (1) and the second exhaust hook (2) extend outward in different directions, respectively.

9. The structure for improving the dynamic stiffness of an automobile exhaust pipe mounting point according to claim 1, wherein the diameter of the bent pillar (3) is the same as the diameter of the first exhaust hook and the second exhaust hook (2).

10. An automobile comprising an exhaust pipe mounting point dynamic stiffness enhancing structure, characterized in that the exhaust pipe mounting point dynamic stiffness enhancing structure is the automobile exhaust pipe mounting point dynamic stiffness enhancing structure of any one of claims 1 to 9.