CN216268532U - Mounting point structure of rear towing arm of automobile - Google Patents
Mounting point structure of rear towing arm of automobile Download PDFInfo
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- CN216268532U CN216268532U CN202123079025.XU CN202123079025U CN216268532U CN 216268532 U CN216268532 U CN 216268532U CN 202123079025 U CN202123079025 U CN 202123079025U CN 216268532 U CN216268532 U CN 216268532U
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- reinforcing plate
- towing arm
- arm
- towing
- automobile
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Abstract
The utility model discloses an automobile rear trailing arm mounting point structure, which is characterized in that: the rear floor longitudinal beam front body is provided with a rear towing arm front reinforcing plate and a rear towing arm rear reinforcing plate, and towing arm mounting threaded pipes for correspondingly mounting towing arms are arranged on the rear towing arm front reinforcing plate and the rear towing arm rear reinforcing plate. The automobile rear trailing arm mounting point structure is simple in structure, good in structural strength and good in NVH performance, can meet the requirements of durability, stability and NVH performance of an automobile, and has strong practicability and good application prospect.
Description
Technical Field
The utility model belongs to the technical field of automobiles, and particularly relates to an automobile rear trailing arm mounting point structure.
Background
The rigidity and strength of the mounting fixed point of the rear trailing arm of the automobile, which is used as an important connecting point of the rear suspension and the automobile body, directly affect the durability of the automobile and the operation stability of the automobile. In recent years, the requirement of customers on the quality of sound in a vehicle is higher, and NVH performance, particularly NTF performance, puts higher requirements on a vehicle body structure, so that the structure of a mounting point of a towing arm needs to have enough rigidity and mode to avoid resonance of the vehicle in the driving process; when a vehicle passes through an impact pit pavement, the support body is deformed greatly due to insufficient rigidity, so that the control stability of the vehicle is influenced; in addition, from the fatigue perspective, insufficient strength also easily causes tearing of welding points, influences the durability of the vehicle, and in a serious case, also relates to the problem of the driving safety of the vehicle; in addition, the trailing arm mounting bracket has insufficient rigidity, which directly relates to the problem of the vibration isolation rate of the rear suspension and the vehicle body at the connection point, and if the vibration isolation rate is insufficient, the load transmitted from the chassis to the vehicle body cannot be effectively attenuated, so that the load transmitted to the vehicle body is large, the noise in the vehicle cab is increased, and the NVH performance of the vehicle is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provides the mounting point structure of the rear towing arm of the automobile, which is simple in structure, good in structural strength and good in NVH (noise vibration harshness) performance.
In order to achieve the purpose, the utility model adopts the technical scheme that: the automobile rear trailing arm mounting point structure is characterized in that: the rear floor longitudinal beam front body is provided with a rear towing arm front reinforcing plate and a rear towing arm rear reinforcing plate, and towing arm mounting threaded pipes for correspondingly mounting towing arms are arranged on the rear towing arm front reinforcing plate and the rear towing arm rear reinforcing plate.
In order to make the technical scheme more detailed and concrete, the utility model also provides the following further preferable technical scheme to obtain satisfactory practical effect:
the rear longitudinal beam side cover plate and the threshold rear section are connected to two sides of the front body of the rear floor longitudinal beam through spot welding to form a U-shaped structure.
The rear towing arm front reinforcing plate comprises a rear towing arm front reinforcing plate body and front reinforcing plate side connecting lugs arranged on two sides of the rear towing arm front reinforcing plate body, and the rear towing arm rear reinforcing plate comprises a rear towing arm rear reinforcing plate body and rear reinforcing plate side connecting lugs arranged on two sides of the rear towing arm rear reinforcing plate body; the front reinforcing plate side connecting lug and the rear reinforcing plate side connecting lug are correspondingly connected to the rear longitudinal beam side cover plates on two sides and the rear section of the doorsill.
A bent lower connecting lug of the front reinforcing plate is arranged below the front reinforcing plate body of the rear towing arm, and a bent lower connecting lug of the rear reinforcing plate is arranged below the rear reinforcing plate body of the rear towing arm; and the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate are welded on the front body of the rear floor longitudinal beam.
And the front reinforcing plate body of the rear towing arm and the rear reinforcing plate body of the rear towing arm are provided with reinforcing convex ribs.
The reinforcing convex rib is arranged at the position corresponding to the towing arm installation threaded pipe.
And the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate are both provided with two connecting lugs arranged at intervals.
The towing arm installation threaded pipe is arranged on the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate.
The rear floor longitudinal beam front body, the rear towing arm front reinforcing plate and the rear towing arm rear reinforcing plate are provided with through holes at rear towing arm mounting positions, the towing arm mounting threaded pipes are coaxial with the through holes, and rear towing arm mounting bolts are mounted in the towing arm mounting threaded pipes.
Compared with the prior art, the utility model has the following advantages: the mounting point structure of the rear towing arm of the automobile has the advantages of simple structure, good structural strength, good NVH (noise, vibration and harshness) performance, stronger practicability and better application prospect.
Drawings
The contents of the drawings and the reference numerals in the drawings of the present specification will be briefly described as follows:
FIG. 1 is a schematic structural view of an installation point of a rear towing arm of an automobile according to the present invention;
FIG. 2 is a partial enlarged schematic view of the mounting point structure of the rear towing arm of the automobile according to the present invention;
FIG. 3 is a bottom view of the mounting point structure of the rear trailing arm of the automobile of the present invention;
fig. 4 is a schematic view of the cross-sectional structure a-a in fig. 3.
Labeled as: 1. the rear floor longitudinal beam comprises a front body of a rear floor longitudinal beam, 2, a threshold rear section, 3, a rear longitudinal beam side cover plate, 4, a rear towing arm front reinforcing plate, 5, a rear towing arm rear reinforcing plate and 6, and a towing arm mounting threaded pipe.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in figures 1, 2, 3 and 4, the automobile rear trailing arm mounting point structure is characterized in that a rear longitudinal beam side cover plate 3 and a threshold rear section 2 are connected to two sides of a rear floor longitudinal beam front body 1, a rear trailing arm front reinforcing plate 4 and a rear trailing arm rear reinforcing plate 5 are arranged on the rear floor longitudinal beam front body 1, and trailing arm mounting threaded pipes 6 for correspondingly mounting trailing arms are arranged on the rear trailing arm front reinforcing plate 4 and the rear trailing arm rear reinforcing plate 5. Through 4 reinforcing plates behind trailing arm and the trailing arm behind the trailing arm reinforcing plate 5 behind the trailing arm behind the back, improve connection structure stability, the trailing arm installation screwed pipe 6 structural installation sets up, can obtain better NVH performance during the installation.
According to the utility model, the rear longitudinal beam side cover plate 3 and the threshold rear section 2 are connected with two sides of the front body 1 of the rear floor longitudinal beam through spot welding to form a U-shaped structure, so that the structural stability is better.
In the utility model, the rear towing arm front reinforcing plate 4 comprises a rear towing arm front reinforcing plate body and front reinforcing plate side connecting lugs arranged on two sides of the rear towing arm front reinforcing plate body, and the rear towing arm rear reinforcing plate 5 comprises a rear towing arm rear reinforcing plate body and rear reinforcing plate side connecting lugs arranged on two sides of the rear towing arm rear reinforcing plate body; the front reinforcing plate side connecting lug and the rear reinforcing plate side connecting lug are correspondingly connected to the rear longitudinal beam side cover plate 3 and the doorsill rear section 2 on two sides. According to the utility model, a bent lower connecting lug of a front reinforcing plate is arranged below a front reinforcing plate body of a rear towing arm, and a bent lower connecting lug of a rear reinforcing plate is arranged below a rear reinforcing plate body of the rear towing arm; and the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate are welded on the front body 1 of the rear floor longitudinal beam. The rear towing arm front reinforcing plate 4 and the rear towing arm rear reinforcing plate 5 are connected with the rear longitudinal beam side cover plate 3 and the threshold rear section 2 through side edges and lower edge connecting lugs to form a stable connecting structure.
According to the utility model, the front reinforcing plate body of the rear towing arm and the rear reinforcing plate body of the rear towing arm are provided with the reinforcing convex ribs. Strengthen protruding muscle locate with drag arm installation screwed pipe 6 correspond the position on (shown in fig. 1, 2, be located the rear of dragging arm installation screwed pipe 6) to strengthen the preceding reinforcing plate of trailing arm 4 behind the reinforcing plate and the back trailing arm behind the reinforcing plate structure intensity, better satisfying the user demand.
In the utility model, two connecting lugs arranged at intervals are arranged on the lower side of the front reinforcing plate and the lower side of the rear reinforcing plate. The towing arm mounting threaded pipe 6 is arranged on the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate. The rear floor longitudinal beam front body 1, the rear towing arm front reinforcing plate 4 and the rear towing arm rear reinforcing plate 5 are provided with through holes at the rear towing arm mounting position, the towing arm mounting threaded pipe 6 is coaxial with the through holes, and the rear towing arm mounting bolt is mounted in the towing arm mounting threaded pipe 6 to realize mounting connection of the rear towing arm.
The utility model provides an automobile rear trailing arm mounting point structure, which mainly aims to improve NTF performance while meeting the requirements of durability and operating stability of an entire automobile; the automobile rear trailing arm mounting point structure mainly comprises a rear floor longitudinal beam front body 1, a threshold rear section 2, a rear longitudinal beam side cover plate 3, a rear trailing arm front reinforcing plate 4, a rear trailing arm rear reinforcing plate 5 and a trailing arm mounting threaded pipe 6.
According to the utility model, a rear trailing arm front reinforcing plate 4 and a rear trailing arm rear reinforcing plate 4 are respectively provided with two reinforcing concave ribs, a trailing arm mounting threaded pipe 6 is welded to the positions corresponding to the reinforcing concave ribs arranged on the rear trailing arm front reinforcing plate and the rear trailing arm rear reinforcing plate through carbon dioxide arc welding, welded to the lower side connection, and welded to form a rear trailing arm front reinforcing plate assembly and a rear trailing arm rear reinforcing plate assembly; the rear threshold section 2 and the side cover plate 3 of the rear longitudinal beam are positioned at two sides of the front body 1 of the rear floor longitudinal beam and are connected by spot welding to form a U-shaped structure; the rear towing arm front reinforcing plate assembly and the rear towing arm rear reinforcing plate assembly are positioned in the U-shaped structure, the bottom of the rear towing arm front reinforcing plate assembly is connected with the front body of the rear floor longitudinal beam through spot welding, and the two sides of the rear towing arm front reinforcing plate assembly are welded with the rear section of the doorsill, the side cover plate of the rear longitudinal beam and the front body of the rear floor longitudinal beam;
through holes are formed in the front body 1 of the rear floor longitudinal beam, the front reinforcing plate 4 of the rear towing arm and the rear reinforcing plate 5 of the rear towing arm at the mounting position of the rear towing arm, the four towing arm mounting threaded pipes 6 are coaxial with the through holes, and the rear towing arm mounting bolts are assembled in the towing arm mounting threaded pipes 6.
The utility model provides an automobile rear trailing arm mounting point structure, compared with the prior art, the structure is simple, the four rear trailing arm mounting threaded pipes are independent in structure and can be respectively adjusted during trial-manufacture matching, and the precision of the mounting point is ensured; according to the structure disclosed by the utility model, CAE verification confirms that the structure can effectively improve NTF (non-return to field) performance and improve riding comfort while ensuring the durability and stability requirements of the mounting point of the rear towing arm.
The automobile rear trailing arm mounting point structure is simple in structure, good in structural strength and good in NVH performance, can meet the requirements of durability, stability and NVH performance of an automobile, and has strong practicability and good application prospect.
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; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model has been described above with reference to the accompanying drawings, but the utility model is not limited to the above-described embodiments, and it is within the scope of the utility model to use various insubstantial modifications of the inventive concept and solutions or to apply them directly to other applications.
Claims (9)
1. The utility model provides a drag arm mounting point structure behind car which characterized in that: the rear floor longitudinal beam front body is provided with a rear towing arm front reinforcing plate and a rear towing arm rear reinforcing plate, and towing arm mounting threaded pipes for correspondingly mounting towing arms are arranged on the rear towing arm front reinforcing plate and the rear towing arm rear reinforcing plate.
2. The automobile rear trailing arm mounting point structure according to claim 1, characterized in that: the rear longitudinal beam side cover plate and the threshold rear section are connected to two sides of the front body of the rear floor longitudinal beam through spot welding to form a U-shaped structure.
3. The automobile rear trailing arm mounting point structure according to claim 2, characterized in that: the rear towing arm front reinforcing plate comprises a rear towing arm front reinforcing plate body and front reinforcing plate side connecting lugs arranged on two sides of the rear towing arm front reinforcing plate body, and the rear towing arm rear reinforcing plate comprises a rear towing arm rear reinforcing plate body and rear reinforcing plate side connecting lugs arranged on two sides of the rear towing arm rear reinforcing plate body; the front reinforcing plate side connecting lug and the rear reinforcing plate side connecting lug are correspondingly connected to the rear longitudinal beam side cover plates on two sides and the rear section of the doorsill.
4. The automobile rear trailing arm mounting point structure according to claim 3, characterized in that: a bent lower connecting lug of the front reinforcing plate is arranged below the front reinforcing plate body of the rear towing arm, and a bent lower connecting lug of the rear reinforcing plate is arranged below the rear reinforcing plate body of the rear towing arm; and the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate are welded on the front body of the rear floor longitudinal beam.
5. The automobile rear trailing arm mounting point structure according to claim 4, characterized in that: and the front reinforcing plate body of the rear towing arm and the rear reinforcing plate body of the rear towing arm are provided with reinforcing convex ribs.
6. The automobile rear trailing arm mounting point structure according to claim 5, characterized in that: the reinforcing convex rib is arranged at the position corresponding to the towing arm installation threaded pipe.
7. The automobile rear trailing arm mounting point structure according to any one of claims 1 to 6, characterized in that: and the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate are both provided with two connecting lugs arranged at intervals.
8. The automobile rear trailing arm mounting point structure according to claim 7, characterized in that: the towing arm installation threaded pipe is arranged on the lower connecting lug of the front reinforcing plate and the lower connecting lug of the rear reinforcing plate.
9. The automobile rear trailing arm mounting point structure according to claim 8, characterized in that: the rear floor longitudinal beam front body, the rear towing arm front reinforcing plate and the rear towing arm rear reinforcing plate are provided with through holes at rear towing arm mounting positions, the towing arm mounting threaded pipes are coaxial with the through holes, and rear towing arm mounting bolts are mounted in the towing arm mounting threaded pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079025.XU CN216268532U (en) | 2021-12-09 | 2021-12-09 | Mounting point structure of rear towing arm of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123079025.XU CN216268532U (en) | 2021-12-09 | 2021-12-09 | Mounting point structure of rear towing arm of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216268532U true CN216268532U (en) | 2022-04-12 |
Family
ID=81055626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123079025.XU Active CN216268532U (en) | 2021-12-09 | 2021-12-09 | Mounting point structure of rear towing arm of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216268532U (en) |
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2021
- 2021-12-09 CN CN202123079025.XU patent/CN216268532U/en active Active
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