CN219115223U

CN219115223U - Rear suspension assembly for vehicle and vehicle

Info

Publication number: CN219115223U
Application number: CN202223217838.5U
Authority: CN
Inventors: 平立芳; 杨林; 李占钊
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-02
Anticipated expiration: 2032-12-01

Abstract

The embodiment of the application provides a back suspension subassembly and vehicle for vehicle, back suspension subassembly includes: a bracket body and a suspension vibration isolation assembly; the bracket main body comprises a first end part connected with the vehicle body and a second end part connected with the power assembly of the vehicle; the suspension vibration isolation assembly is arranged in a first through hole formed in the first end part and is fixedly connected with the bracket main body; the suspension vibration isolation assembly comprises a rubber main spring and a suspension inner core arranged in the middle of the rubber main spring, and the rubber main spring is connected with the inner wall of the first through hole through the end surface of the rubber main spring; the center of the suspension inner core is provided with a second through hole along the central axis direction, one end of the first stud is connected with the second through hole, and the other end of the first stud is connected with the vehicle body. This rear suspension subassembly is through integrating suspension inner core and first double-end stud mutually for rear suspension subassembly can be connected with the automobile body more firmly, has reduced rear suspension subassembly whole volume, has still promoted rear suspension subassembly's damping performance.

Description

Rear suspension assembly for vehicle and vehicle

Technical Field

The application relates to the technical field of vehicle suspension, in particular to a rear suspension assembly for a vehicle and the vehicle.

Background

At present, a pull rod type rubber structure is adopted for a rear suspension of a medium-high end passenger car type engine, so that the driving comfort of the whole car is improved. The pull rod type rubber rear suspension is widely applied due to simple structure and mature technology. As shown in fig. 1 and 2, the conventional pull rod type rubber rear suspension uses the cooperation of bolts and nuts to fixedly install an inner core in an auxiliary frame, and ensures the stability and shock absorption function of the rear suspension installation through the clamping force of the auxiliary frame to the inner core. In order to obtain larger clamping force, the inner core is generally designed to be larger, so that the inner core has larger contact area with the auxiliary frame, and the main spring is reduced in volume, so that the damping performance is poor; and the rear suspension is clamped and matched with the auxiliary frame through bolts, so that the phenomenon of insufficient clamping force exists, and abnormal sound is generated.

Disclosure of Invention

The utility model provides a rear suspension subassembly and vehicle for vehicle is through integrating suspension inner core and first double-end double-screw bolt mutually for rear suspension subassembly can be more firm be connected with the automobile body, reduces rear suspension subassembly whole volume, has still promoted rear suspension subassembly's vibration isolation performance.

Embodiments of the present application provide a rear suspension assembly for a vehicle, comprising: a bracket body and a suspension vibration isolation assembly; the bracket main body comprises a first end part connected with a vehicle body and a second end part connected with a power assembly of the vehicle; the suspension vibration isolation assembly is arranged in a first through hole formed in the first end part and is fixedly connected with the bracket main body; the suspension vibration isolation assembly comprises a rubber main spring and a suspension inner core arranged in the middle of the rubber main spring, and the rubber main spring is connected with the inner wall of the first through hole through the end surface of the rubber main spring; the center of the suspension inner core is provided with a second through hole along the central axis direction, one end of the first double-end stud is connected with the second through hole, and the other end of the first double-end stud is connected with the vehicle body.

Further, a third through hole is formed in the second end portion, one end of the second stud is connected with the third through hole, and the other end of the second stud is connected with a power assembly of the vehicle.

Further, the rubber main spring is of a V-shaped structure, and two end parts of the V-shaped structure are fixedly connected with the inner wall of the first through hole.

Further, the central axis of the first stud is perpendicular to the central axis of the second stud.

Further, a portion of the first end portion connected to the second end portion is provided with a lightening hole.

The embodiment of the application also provides a vehicle, which comprises the rear suspension assembly for the vehicle and a connecting plate for fixing the rear suspension assembly on the vehicle body; the connecting plate is provided with a fourth through hole, so that one end, connected with the vehicle body, of the first stud penetrates through the fourth through hole, and the first stud is fixedly connected with the connecting plate through a nut.

Further, the connecting plate is provided with a groove with the same outline shape as the cross section of the suspended inner core, and the groove is used for inserting the end face of the suspended inner core connected with the connecting plate into the groove.

The rear suspension assembly for the vehicle and the vehicle have the following effects:

through integrating the suspension inner core with first double-end stud for back suspension subassembly can be connected with the automobile body more firmly, and this kind of structure has still reduced the volume of suspension inner core and rubber main spring, and then has reduced the whole volume of back suspension subassembly, and the cost is reduced has still promoted the vibration isolation performance of back suspension subassembly, and assembly operation is simple. The integrated design of the suspended inner core and the first stud also avoids the abnormal sound caused by loosening of the suspension due to insufficient clamping force in the use process of the existing rear suspension.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIGS. 1A and 1B are schematic structural views of a prior art rear suspension and a cross-sectional view of the rear suspension mated with a vehicle body;

FIG. 2 is a schematic structural view of a rear suspension assembly in one embodiment of the present application;

FIG. 3 is a cross-sectional view of the rear suspension assembly of FIG. 2 taken along the direction A-A;

FIG. 4 is a schematic structural view of a connection plate;

fig. 5 is a cross-sectional view of the rear suspension assembly of fig. 2 mated with a web.

Description of the drawings: 1-a rear suspension assembly, 10-a bracket body; 11-a first end; 110-a first via; 12-a second end; 120-a third through hole; 20-a suspension vibration isolation assembly; 21-a rubber main spring; 22-a suspended core; 220-a second via; 30-a first stud; 40-a second double-ended screw; 50-lightening holes; 2-connecting plates; 3-fourth through holes; 4-grooves. 61-a bracket; 62-a main spring; 63-an inner core; 64-bolts; 65-vehicle body connectors; 66-nut.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

As shown in fig. 2 and 3, an embodiment of the present application provides a rear suspension assembly 1, including: a bracket body 10 and a suspension vibration isolation assembly 20. Wherein the bracket body 10 includes a first end 11 connected to the vehicle body and a second end 12 connected to the powertrain of the vehicle; the first end 11 meets the second end 12 to form the stent body 10. The material of the holder body 10 is usually metal.

The suspension vibration isolation assembly 20 in the rear suspension assembly 1 is disposed in the first through hole 110 formed in the first end 11 and is fixedly connected to the bracket body 10. The suspension vibration isolation assembly 20 includes a rubber main spring 21 and a suspension core 22 disposed in the middle of the rubber main spring 21. As shown in fig. 1, in the conventional rear suspension, since the core 63 is designed to be relatively large, the volume of the main spring 62 is designed to be relatively large in order to fix the core 63, and thus the main spring 62 is generally designed to surround the inner wall of the opening of the bracket 61. The rubber main spring 21 in the embodiment of the present application is not designed to surround the inner wall of the first through hole 110, but is designed to have a structure of at least two end surfaces, for example, a rectangular parallelepiped or a cylinder, through the end surfaces of which are connected to the inner wall of the first through hole 110, so that the volume of the rubber main spring 21 can be reduced. In a specific embodiment, the rubber main spring 21 has a V-shaped structure, and two ends of the V-shaped structure are fixedly connected to the inner wall of the first through hole 110. The shape of the rubber main spring 21 is not particularly limited in the embodiment of the present application.

Further, a second through hole 220 is formed in the center of the suspension core 22 in the direction of the central axis thereof, so that one end of the first stud 30 can be connected to the second through hole 220 and the other end of the first stud 30 can be connected to the vehicle body. Further, one end of the first stud 30 may be welded or bonded to the second through hole, or one end of the suspension core 22 may be configured as a threaded protrusion, such that one end of the first stud 30 is screwed with the threaded protrusion, or a thread may be provided on an inner wall of the second through hole 220, such that one end of the first stud 30 is screwed with an inner wall of the second through hole 220. As shown in fig. 1 and 2, the existing rear suspension is passed through a body joint 65 and an inner core 63 by a bolt 64, and then the inner core 63 is fixed to the body by a nut 66. This manner of fixing the rear mount to the vehicle body relies on the clamping force of the vehicle body connector 65 to the core 63 to ensure a firm and cushioned effect of the rear mount installation. When the clamping force of the vehicle body joint 65 to the core 63 is insufficient, abnormal sound is generated. Also, in order to secure a larger contact area between the vehicle body joint 65 and the inner core 63, the inner core 63 needs to be designed larger (i.e., the area of the cross section of the inner core 63 needs to be designed larger), and the volume of the main spring 62 needs to be reduced, resulting in poor cushioning performance. Meanwhile, in order to achieve the purpose of damping, the main spring 62 should be designed to surround the inner wall of the opening of the bracket 61, thereby increasing the volume of the main spring 62. In the embodiment of the present application, the suspension vibration isolation assembly 20 is fixed on the vehicle body through the structure that the first stud 30 is respectively in threaded connection with the suspension core 22 and the vehicle body, so that the connection is stable. Therefore, it is not necessary to design the suspension core 22 to be large, and thus the volume of the rubber main spring 21 is reduced accordingly, and it is not necessary to design the rubber main spring 21 to be a structure surrounding the inner wall of the first through hole 110 as in the conventional rear suspension shown in fig. 1.

Further, a third through hole 120 is provided on the second end 12 such that one end of the second stud 40 can be connected to the third through hole 120 and the other end can be connected to the powertrain of the vehicle, thereby firmly connecting the second end 12 to the powertrain of the vehicle. Further, one end of the second stud 40 may be welded or bonded to the third through hole 120, or one end of the third through hole 120 may be configured as a threaded protrusion, so that one end of the second stud 40 is in threaded connection with the threaded protrusion, or a thread is provided on an inner wall of the third through hole 120, so that one end of the second stud 40 is in threaded connection with an inner wall of the third through hole 120. Furthermore, the manner in which the second end 12 is connected to the vehicle's powertrain is such that the second end 12 in the embodiments of the present application may be provided in the configuration shown in fig. 2 and 3. While the end of the existing rear suspension that is connected to the vehicle powertrain is typically two parallel metal plates, as shown in fig. 1, and is connected to the vehicle powertrain by bolts. Compared with the existing rear suspension, the second end 12 of the bracket body 10 is closer to the first end 11 and has smaller volume, so that the length of the bracket body 10 is reduced, the overall size of the rear suspension assembly 1 is reduced, materials are saved, the cost is reduced, and the second end 12 is more convenient to install on a power assembly of a vehicle.

Still further, the central axis of the first stud 30 and the central axis of the second stud 40 are perpendicular to each other, so that the rear suspension assembly 1 meets the arrangement requirement between the powertrain and the body connection of the vehicle.

Further, a lightening hole 50 is provided at a portion where the first end 11 and the second end 12 are connected, for reducing materials used for the bracket body 10 and reducing costs. The shape, number and arrangement of the lightening holes 50 may be set as desired.

As shown in fig. 4 and 5, the present embodiment also provides a vehicle including the rear suspension assembly 1 for a vehicle as above and the connection plate 2 for fixing the rear suspension assembly 1 to the vehicle body. The connecting plate 2 is provided with a fourth through hole 3, so that one end of the first stud 30 connected with the vehicle body passes through the fourth through hole 3, and the first stud 30 is fixedly connected with the connecting plate 2 through a nut (for example, a hexagonal flange face nut).

Further, as shown in fig. 4, the connecting plate 2 is provided with a groove 4 with the same shape as the cross section of the suspending core 22, and the end face of the suspending core 22 connected with the connecting plate 2 is inserted into the groove 4, so that the suspending core 22 is limited in the groove 4 and does not deflect when the rear suspending assembly 1 is stressed.

by integrating the suspension core with the first stud, the rear suspension assembly can be more firmly connected with the vehicle body. The structure also reduces the volume of the suspension inner core and the rubber main spring, further reduces the whole volume of the rear suspension assembly, reduces the cost, and also improves the vibration isolation performance of the rear suspension assembly, and the assembly operation is simple. The integrated design of the suspended inner core and the first stud also avoids the abnormal sound caused by loosening of the suspension due to insufficient clamping force in the use process of the existing rear suspension.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar conditions; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A rear suspension assembly for a vehicle, comprising: a bracket body (10) and a suspension vibration isolation assembly (20);

the bracket main body (10) comprises a first end (11) connected with a vehicle body and a second end (12) connected with a power assembly of the vehicle; the suspension vibration isolation assembly (20) is arranged in a first through hole (110) formed in the first end part (11) and is fixedly connected with the bracket main body (10);

the suspension vibration isolation assembly (20) comprises a rubber main spring (21) and a suspension inner core (22) arranged in the middle of the rubber main spring (21), and the rubber main spring (21) is connected with the inner wall of the first through hole (110) through the end surface of the rubber main spring; the center of the suspension inner core (22) is provided with a second through hole (220) along the center axis direction, one end of the first stud (30) is connected with the second through hole (220), and the other end of the first stud (30) is connected with a vehicle body.

2. The rear suspension assembly according to claim 1, characterized in that a third through hole (120) is provided in the second end portion (12), one end of a second stud (40) is connected to the third through hole (120), and the other end of the second stud (40) is connected to the power train of the vehicle.

3. The rear suspension assembly according to claim 1, wherein the rubber main spring (21) has a V-shaped structure, and both ends of the V-shaped structure are fixedly connected to an inner wall of the first through hole (110).

4. The rear suspension assembly of claim 1, wherein a central axis of the first stud (30) and a central axis of the second stud (40) are perpendicular to each other.

5. Rear suspension assembly according to claim 1, characterized in that the portion of the first end portion (11) connected to the second end portion (12) is provided with a lightening hole (50).

6. A vehicle, characterized by comprising a rear suspension assembly (1) for a vehicle as claimed in any one of claims 1-5 and a connection plate (2) for fixing the rear suspension assembly (1) to the vehicle body;

the connecting plate (2) is provided with a fourth through hole (3), so that one end, connected with the vehicle body, of the first stud (30) penetrates through the fourth through hole (3), and the first stud (30) is fixedly connected with the connecting plate (2) through a nut.

7. Vehicle according to claim 6, characterized in that the connecting plate (2) is provided with a recess (4) of the same contour shape as the cross section of the suspension core (22) for inserting the end face of the suspension core (22) that adjoins the connecting plate (2) into the recess (4).