CN219115223U - Rear suspension assembly for vehicle and vehicle - Google Patents

Abstract

An embodiment of the present application provides a rear suspension assembly for a vehicle and the vehicle. The rear suspension assembly includes: a bracket main body and a suspension vibration isolation assembly; the bracket main body includes a first end connected to the vehicle body and a power The second end connected to the assembly; the suspension vibration isolation assembly is set in the first through hole opened at the first end, and is fixedly connected with the bracket main body; the suspension vibration isolation assembly includes a rubber main spring and is arranged on The suspension inner core in the middle of the rubber main spring, the rubber main spring is connected with the inner wall of the first through hole through its end face; the center of the suspension inner core is provided with a second through hole along the direction of its central axis, and the first double-ended screw One end of the column is connected with the second through hole, and the other end of the first stud is connected with the vehicle body. The rear suspension assembly integrates the suspension inner core with the first stud, so that the rear suspension assembly can be more firmly connected to the vehicle body, reduces the overall volume of the rear suspension assembly, and improves the rear suspension assembly. Set the vibration damping performance of the component.

Description

A rear suspension assembly for a vehicle and the vehicle

technical field

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

Background technique

At present, the rear suspension of the engine of mid-to-high-end passenger models mostly adopts a tie-rod rubber structure to improve the driving comfort of the vehicle. The rod-type rubber rear suspension is widely used because of its simple structure and mature technology. As shown in Figure 1 and Figure 2, the existing tie-rod rubber rear suspension uses the cooperation of bolts and nuts to fix the inner core in the sub-frame, and through the clamping force of the sub-frame to the inner core, To ensure the stability and shock absorption function of the rear suspension installation. In order to obtain greater clamping force, the inner core is usually designed to be larger, so that the inner core and the sub-frame have a larger contact area, thus reducing the volume of the main spring, resulting in poor cushioning performance; and the rear suspension The device is clamped and matched with the subframe through bolts, and the clamping force is insufficient, which leads to abnormal noise.

Utility model content

The present application provides a rear suspension assembly for a vehicle and the vehicle. By integrating the suspension inner core with the first stud, the rear suspension assembly can be more firmly connected to the vehicle body, reducing the rear suspension The overall volume of the components also improves the vibration isolation performance of the rear suspension components.

An embodiment of the present application provides a rear suspension assembly for a vehicle, including: a bracket body and a suspension vibration isolation assembly; the bracket body includes a first end connected to the vehicle body and connected to the powertrain of the vehicle the second end of the suspension; the suspension vibration isolation assembly is arranged in the first through hole opened in the first end, and is fixedly connected with the support main body; the suspension vibration isolation assembly includes a rubber main body Spring and the suspension inner core arranged in the middle of the main rubber spring, the main rubber spring is connected with the inner wall of the first through hole through its end face; the center of the suspension inner core is provided with a The second through hole in the direction, one end of the first double-ended stud is connected to the second through hole, and the other end of the first double-ended stud is connected to the vehicle body.

Further, a third through hole is provided on the second end, one end of the second stud is connected to the third through hole, and the other end of the second stud is connected to the vehicle connected to the powertrain.

Further, the rubber main spring has a V-shaped structure, and the two ends of the V-shaped structure are fixedly connected to the inner wall of the first through hole.

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

Further, the part where the first end part is connected to the second end part is provided with a lightening hole.

The embodiment of the present application also provides a vehicle, including the above-mentioned rear suspension assembly for the vehicle and a connection plate for fixing the rear suspension assembly on the vehicle body; the connection plate is provided with The fourth through hole allows the end of the first double-ended stud connected to the vehicle body to pass through the fourth through hole, and the first double-ended stud is fixedly connected to the connecting plate through a nut.

Further, the connecting plate is provided with a groove having the same profile shape as the cross-section of the suspension inner core, for inserting the end face of the suspension inner core connected with the connecting plate into the groove. in the slot.

The rear suspension assembly for a vehicle of the present application and the vehicle have the following effects:

By integrating the suspension inner core with the first stud, the rear suspension assembly can be more firmly connected to the vehicle body. This structure also reduces the volume of the suspension inner core and the rubber main spring, thereby reducing the The overall volume of the rear suspension assembly is reduced, the cost is reduced, the vibration isolation performance of the rear suspension assembly is improved, and the assembly operation is simple. The integrated design of the suspension inner core and the first double-headed stud also avoids the abnormal noise caused by the suspension loosening caused by insufficient clamping force during the use of the existing rear suspension.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1A and Fig. 1B are the structural schematic diagram of existing rear suspension and the cross-sectional view of cooperation between rear suspension and vehicle body;

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

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

Fig. 4 is the structural representation of connecting plate;

Fig. 5 is a cross-sectional view of the rear suspension assembly in Fig. 2 cooperating with the connecting plate.

Description of drawings: 1-rear suspension assembly, 10-bracket main body; 11-first end; 110-first through hole; 12-second end; 120-third through hole; 20-suspension spacer Vibration assembly; 21-rubber main spring; 22-suspension inner core; 220-second through hole; 30-first stud stud; 40-second stud stud; 50-lightening hole; 2-connection plate; 3-the fourth through hole; 4-groove. 61-bracket; 62-main spring; 63-inner core; 64-bolt; 65-body connector; 66-nut.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

As shown in FIGS. 2 and 3 , the 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 and the second end 12 connect to form the bracket body 10 . The material of the bracket 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 opened in the first end portion 11 , and is fixedly connected with the bracket main body 10 . The suspension vibration isolation assembly 20 includes a rubber main spring 21 and a suspension inner core 22 arranged in the middle of the rubber main spring 21 . As shown in Figure 1, in the existing rear suspension, since the inner core 63 is designed relatively large, in order to fix the inner core 63, the volume of the main spring 62 should be designed correspondingly larger, therefore, the main spring 62 is usually designed to The spring 62 is designed to surround the inner wall of the opening of the bracket 61 . And the rubber main spring 21 in the embodiment of the present application is not designed as a structure surrounding the inner wall of the first through hole 110, but is designed as a structure with at least two end faces, for example, a cuboid or cylinder, through which the end face and the first The inner walls of the through holes 110 are connected, so that the volume of the main rubber 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 embodiment of the present application does not specifically limit the shape of the rubber main spring 21 .

Further, the center of the suspension inner core 22 is provided with a second through hole 220 along its central axis, so that one end of the first stud 30 can be connected with the second through hole 220, and the first stud 30 can be connected to the second through hole 220. The other end of 30 is connected with vehicle body. Further, one end of the first double-ended stud 30 can be welded or glued to the second through hole, or one end of the suspension inner core 22 can be set as a threaded protrusion, so that the first double-ended stud One end of the stud 30 is threadedly connected with a threaded protrusion, or the inner wall of the second through hole 220 is provided with threads, so that one end of the first stud 30 is threadedly connected with the inner wall of the second through hole 220 . As shown in FIG. 1 and FIG. 2 , the existing rear suspension passes through the body connector 65 and the inner core 63 through bolts 64 , and then fixes the inner core 63 on the vehicle body with nuts 66 . This way of fixing the rear suspension and the vehicle body relies on the clamping force of the body connector 65 on the inner core 63 to ensure the stability and cushioning effect of the rear suspension installation. When the clamping force of the body connector 65 on the inner core 63 is insufficient, abnormal noise will be generated. And in order to ensure that there is a larger contact area between the body connector 65 and the inner core 63, the inner core 63 needs to be designed larger (that is, the area of the inner core 63 cross-section is designed to be larger), and then must be reduced. The volume of the main spring 62 results in poor cushioning performance. At the same time, in order to achieve the purpose of cushioning, the main spring 62 must be designed to surround the inner wall of the opening of the bracket 61 , thereby increasing the volume of the main spring 62 . However, in the embodiment of the present application, the suspension vibration isolation assembly 20 is fixed on the vehicle body through the structure in which the first stud 30 is threadedly connected to the suspension inner core 22 and the vehicle body, and the connection is stable. Therefore, it is not necessary to design the suspension inner core 22 to be very large, thereby reducing the volume of the rubber main spring 21 accordingly, and it is not necessary to design the rubber main spring 21 to surround the first rear suspension as shown in FIG. 1 . The structure of the inner wall of the through hole 110 .

Further, a third through hole 120 is provided on the second end 12, so that one end of the second stud 40 can be connected with the third through hole 120, and the other end can be connected with the powertrain of the vehicle, Thus, the second end portion 12 is firmly connected to the powertrain of the vehicle. Further, one end of the second double-ended stud 40 can be welded or glued to the third through hole 120, or one end of the third through hole 120 can be set as a threaded protrusion, so that the second double-ended stud 40 One end of the column 40 is threadedly connected with a threaded protrusion, or the inner wall of the third through hole 120 is provided with threads, so that one end of the second stud 40 is threadedly connected with the inner wall of the third through hole 120 . In addition, the connection between the second end portion 12 and the powertrain of the vehicle enables the second end portion 12 in the embodiment of the present application to be arranged as the structure shown in FIG. 2 and FIG. 3 . However, one end of the existing rear suspension connected to the powertrain of the vehicle is usually two parallel sheet metals, as shown in FIG. 1 , and is connected to the powertrain of the vehicle through bolts. Compared with the existing rear suspension, the second end 12 of the bracket body 10 in the embodiment of the present application is closer to the first end 11, and the volume is smaller, thereby reducing the length of the bracket body 10, thereby reducing the The overall size of the rear suspension assembly 1 is reduced, material is saved, cost is reduced, and the second end portion 12 is more conveniently installed on the powertrain of the vehicle.

Furthermore, 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 satisfies the arrangement between the vehicle powertrain and the vehicle body. Require.

Furthermore, a lightening hole 50 is provided at the part connecting the first end 11 and the second end 12 to reduce the material used for the bracket body 10 and reduce the cost. The shape, quantity and arrangement of the lightening holes 50 can be set as required.

As shown in Figure 4 and Figure 5, the embodiment of the present application also provides a vehicle, which includes the above rear suspension assembly 1 for the vehicle and a connecting plate for fixing the rear suspension assembly 1 on the vehicle body 2. The connecting plate 2 is provided with a fourth through hole 3, so that one end of the first double-ended stud 30 connected with the vehicle body passes through the fourth through hole 3, and the first double-ended stud 30 is connected by a nut (for example, a hexagonal flange nut). The head stud 30 is fixedly connected with the connecting plate 2 .

Further, as shown in FIG. 4 , the connecting plate 2 is provided with a groove 4 having the same contour shape as the cross section of the suspension inner core 22 for inserting the end face of the suspension inner core 22 connected with the connection plate 2 into the In the groove 4, when the rear suspension assembly 1 is stressed, the suspension inner core 22 is restricted in the groove 4 and does not deflect.

The rear suspension assembly for a vehicle of the present application and the vehicle have the following effects:

By integrating the suspension core with the first stud, the rear suspension assembly can be more firmly connected to the vehicle body. This structure also reduces the volume of the suspension inner core and the rubber main spring, thereby reducing the overall volume of the rear suspension assembly, reducing the cost, and improving the vibration isolation performance of the rear suspension assembly, and the assembly operation is simple . The integrated design of the suspension inner core and the first double-headed stud also avoids the abnormal noise caused by the suspension loosening caused by insufficient clamping force during the use of the existing rear suspension.

In the drawings of this embodiment, the same or similar symbols correspond to the same or similar conditions; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplification of the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific orientation Construction and operation, so the words describing the positional relationship in the drawings are only for illustrative purposes, and should not be construed as limitations on this patent. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

The above are only preferred embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the protection scope of the application within.

Claims (7)

1. A rear suspension assembly for a vehicle, characterized in that it comprises: a support body (10) and a suspension vibration isolation assembly (20); The bracket main 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 suspension vibration isolation assembly (20) is arranged on Opened in the first through hole (110) of the first end portion (11), and fixedly connected with the bracket main body (10); The suspension vibration isolation assembly (20) includes 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 to the rubber main spring (21) through its end surface The inner walls of the first through hole (110) are connected; the center of the suspended inner core (22) is provided with a second through hole (220) along the direction of its central axis, and the first stud (30) One end of the first stud (30) is connected with the vehicle body. 2. The rear suspension assembly according to claim 1, characterized in that, the second end portion (12) is provided with a third through hole (120), and one end of the second stud (40) is connected to The third through hole (120) is connected, and the other end of the second stud (40) is connected with the power assembly of the vehicle. 3. The rear suspension assembly according to claim 1, characterized in that the main rubber spring (21) is a V-shaped structure, and the two ends of the V-shaped structure are connected to the first through hole. The inner wall of (110) is fixedly connected. 4. The rear suspension assembly according to claim 1, characterized in that, the central axis of the first stud (30) and the central axis of the second stud (40) are perpendicular to each other. 5. The rear suspension assembly according to claim 1, characterized in that, the part where the first end (11) is connected to the second end (12) is provided with a weight reducing hole (50). 6. A vehicle, characterized in that it comprises the rear suspension assembly (1) for a vehicle as claimed in any one of claims 1-5 and is used to mount the rear suspension assembly (1) A connecting plate (2) fixed on 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 to the vehicle body passes through the fourth through hole (3), and passes through the A nut fixedly connects the first double-ended stud (30) to the connecting plate (2). 7. The vehicle according to claim 6, characterized in that, the connecting plate (2) is provided with a groove (4) having the same contour shape as the cross-section of the suspension inner core (22), for The end face of the suspension inner core (22) connected with the connecting plate (2) is inserted into the groove (4).

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