CN212708791U - Lower swing arm assembly of vehicle - Google Patents

Abstract

The utility model provides a lower swing arm assembly of vehicle belongs to vehicle swing arm field. This lower swing arm assembly includes: a body and a reinforcing plate made of a steel material, and a resin plate made by injecting a resin between a plurality of reinforcing bars in a preset arrangement form; and the body, the reinforcing plate and the resin plate are sequentially stacked, the body is fixedly connected with the reinforcing plate, and the reinforcing plate is fixedly connected with the resin plate. The utility model discloses a lower swing arm assembly can realize that lightweight, cost are lower and promoted the NVH performance of whole car.

Description

Lower swing arm assembly of vehicle

Technical Field

The utility model relates to a vehicle swing arm field especially relates to a lower swing arm assembly of vehicle.

Background

The lower swing arm is a very important safety part and a very important guide part in a Macpherson type independent suspension system of the automobile, mainly bears the lateral force and the longitudinal force of the automobile in the running process, and has very important influences on the suspension performance and the control stability of the whole automobile in the performances of size, strength, rigidity and the like. In the design process, due to the influence of the cost factor of the whole automobile and the requirement of stable operation of the automobile on light weight, the design of the lower swing arm needs to meet the requirements of strength, rigidity and overall dimension of a suspension, and the weight and the cost are reduced to the maximum extent. Meanwhile, the medium-high frequency vibration and noise transmitted from the ground are also isolated through the swing arm ball head and the lining.

The traditional swing arm process is generally cast iron, cast steel or stamping welding, and the weight of the swing arm is heavy, so that the swing arm is a negative factor for the stability of the chassis, the oil consumption of the whole vehicle and the power consumption. Meanwhile, the die investment of the stamping swing arm is high, and more than millions of dies are invested frequently. The forged aluminum swing arm can realize light weight, but the forging die has a large input amount, high cost and slow cost recovery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower swing arm assembly that lightweight and cost are lower.

The utility model discloses a NVH performance of whole car is promoted to another purpose.

Particularly, the utility model provides a lower swing arm assembly of vehicle includes:

a body and a reinforcing plate made of a steel material, and a resin plate made by injecting a resin between a plurality of reinforcing bars in a preset arrangement form; and is

The body, the reinforcing plate with the resin board stacks up the setting in proper order, just the body with reinforcing plate fixed connection, the reinforcing plate with resin board fixed connection.

Optionally, the reinforcing bar comprises a plurality of fibre tows of the same or different lengths.

Optionally, the resin plate comprises a mounting notch for mounting a swing arm front bushing;

the preset arrangement form of the reinforcing ribs comprises the radial arrangement with the installation notches as centers.

Optionally, the predetermined arrangement of the plurality of reinforcing beads further includes penetrating the resin plate in a lateral direction of the vehicle.

Alternatively, each of the reinforcing beads arranged in the lateral and longitudinal directions of the vehicle among the plurality of reinforcing beads is provided to extend continuously and uniformly.

Optionally, the lower swing arm assembly further comprises:

the resin ball bowl is in a bowl shape and is arranged at the ball seat of the body for mounting the swing arm ball head.

Optionally, the body and the reinforcing plate are fixedly connected by welding.

Optionally, the body and the reinforcing plate are made of a single layer of high strength stamped steel.

The lower swing arm assembly formed by the body and the reinforcing plate made of the steel material and the resin plate made of the reinforcing rib and the resin material is lighter in weight compared with the existing cast iron, cast steel or stamping and welding lower swing arm, and therefore the lower swing arm assembly can be designed in a light weight mode. Compared with the traditional stamping and forging swing arm, the lower swing arm assembly in the form can reduce the number of dies by more than one plate, and reduce the investment of related equipment such as dies and the like, namely reduce the cost.

Furthermore, the resin plate made of the resin material can reduce medium and high frequency vibration from a road surface and improve the NVH performance of the whole vehicle while increasing the strength and achieving the aim of light weight.

Further, the body made of high-strength steel can meet the requirements of the transverse rigidity and the longitudinal rigidity of the vehicle, and the arrangement of the reinforcing plate can further improve the integral rigidity and strength of the swing arm assembly.

Further, the lower swing arm assembly further comprises a bowl-shaped resin ball bowl which is arranged at the ball seat of the body for mounting the swing arm ball head. The resin ball bowl can effectively reduce the starting torque of the swing arm ball head, increase the sliding distance of the whole vehicle and reduce the oil consumption and the power consumption; on the other hand, the medium-high frequency vibration transmitted from the road surface end can be reduced.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a lower swing arm assembly of a vehicle according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of a lower swing arm assembly of a vehicle according to one embodiment of the present invention;

fig. 3 is a schematic structural view of a resin plate of a lower swing arm assembly of a vehicle according to an embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic structural diagram of a lower swing arm assembly 100 of a vehicle according to an embodiment of the present invention. Fig. 2 is an exploded view of a lower swing arm assembly 100 of a vehicle according to an embodiment of the present invention. Fig. 3 is a schematic structural view of a resin plate 30 of a lower swing arm assembly 100 of a vehicle according to an embodiment of the present invention. As shown in fig. 1, referring also to fig. 2, in one embodiment of the present invention, a lower swing arm assembly 100 of a vehicle includes a body 10 and a reinforcing plate 20 made of a steel material, and a resin plate made by injecting resin between a plurality of reinforcing ribs 31 (see fig. 3) in a predetermined arrangement. The body 10, the reinforcing plate 20 and the resin plate 30 are sequentially stacked, the body 10 is fixedly connected with the reinforcing plate 20, and the reinforcing plate 20 is fixedly connected with the resin plate 30.

In the present embodiment, the lower swing arm assembly 100 formed by the body 10 and the reinforcing plate 20 made of steel material and the resin plate 30 made of reinforcing ribs and resin material is lighter in weight than the conventional cast iron, cast steel or press welded lower swing arm, i.e., can be designed to be lighter in weight. Compared with the traditional stamping and forging swing arm, the lower swing arm assembly 100 in the form can reduce the number of dies by more than one plate, and reduce the investment of related equipment such as dies and the like, namely reduce the cost.

Further, the resin plate 30 made of a resin material can reduce medium and high frequency vibration from the road surface and improve the NVH performance of the entire vehicle while increasing the strength and achieving the object of weight reduction.

Further, the body 10 made of high-strength steel can meet the requirements of the rigidity of the vehicle in the transverse direction and the longitudinal direction, and the arrangement of the reinforcing plate 20 can further improve the rigidity and the strength of the whole swing arm assembly.

In one embodiment, the body 10 and the reinforcing plate 20 are fixedly connected by welding. The body 10 and the reinforcing plate 20 provide the entire swing arm with a primary stiffness realization both in the transverse and longitudinal directions of the vehicle. The material with the elongation rate of more than 15 percent can be adopted to meet the requirement of semi-drawing.

In one embodiment, the lower swing arm assembly 100 of the present invention can achieve weight reduction of more than 30% compared to a conventional cast iron swing arm.

Alternatively, the reinforcing ribs 31 are made of one or more of fibrous materials such as carbon fibers, glass fibers, or basalt fibers.

Optionally, the resin in the resin board is a reinforced epoxy resin.

Alternatively, the body 10 and the reinforcing plate 20 are both made of high-strength steel. Further, the body 10 and the reinforcing plate 20 are made of a single layer of high strength stamped steel.

In another embodiment, the reinforcing ribs 31 comprise a plurality of fiber bundles of the same or different lengths. That is, the reinforcing ribs 31 may be formed of all long fiber bundles or all short fiber bundles, or may be formed by combining long and short fiber bundles. The specific shape may be determined according to the specific shape of the resin board 30.

As shown in fig. 1, the body 10, the reinforcement plate 20 and the resin plate 30 of the lower swing arm assembly 100 together form an installation opening 101 for installing the swing arm ball 50, an installation seat 102 of the passive tie rod 60, an installation opening 103 of the swing arm front bushing 70 and an installation opening 104 of the swing arm rear bushing 80.

As shown in fig. 3, the resin plate 30 includes a mounting notch 301 for mounting the swing arm front bushing 70, and the predetermined arrangement of the plurality of reinforcing ribs 31 includes a radial arrangement centered on the mounting notch 301.

In a further embodiment, the predetermined arrangement of the plurality of reinforcing beads 31 further includes penetrating the resin plate 30 in the lateral direction of the vehicle.

In a further embodiment, each of the reinforcing beads 31 arranged in the lateral and longitudinal directions of the vehicle among the plurality of reinforcing beads 31 is provided to extend continuously and uniformly. That is, the fibers arranged in the transverse and longitudinal direction of the vehicle do not allow for interruptions or large abrupt changes to maintain the force support of the entire vehicle.

The reinforcing ribs 31 arranged in the above mode can meet the requirements of transverse and longitudinal collision and buckling of the whole vehicle.

As shown in fig. 2, in other embodiments of the present invention, the lower swing arm assembly 100 further includes: the resin bowl 40, which is in a bowl shape, is disposed at a ball seat of the body 10 for mounting the swing arm ball head 50. The resin ball bowl 40 can effectively reduce the starting torque of the swing arm ball head 50, increase the sliding distance of the whole vehicle and reduce the oil consumption and the power consumption; on the other hand, the medium-high frequency vibration transmitted from the road surface end can be reduced.

Whole lower swing arm assembly 100 is for traditional swing arm can be better the high-frequency vibration on isolation road surface, uses with the combination of rubber bush, and whole NVH has obvious promotion.

In one embodiment, the whole process of manufacturing the lower swing arm assembly 100 can be performed as follows:

prepressing and molding the body 10 and the reinforcing plate 20;

the swing arm ball 50 is machined;

placing the body 10 and the reinforcing plate 20 into a mold;

the reinforcing ribs 31 are laid in the moulds of the body 10 and the reinforcing plate 20 in the above-mentioned manner;

after die assembly, vacuumizing is performed;

the press adds injected resin (including at the resin plate 30 and the resin ball bowl 40);

maintaining the pressure to cure the resin;

finally, demoulding and sampling are carried out, and after solidification, a resin plate 30 and resin ball bowls 40 which are uniformly distributed between the swing arm ball head 50 and the ball seat are formed.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (8)

1. A lower swing arm assembly for a vehicle, comprising:

a body and a reinforcing plate made of a steel material, and a resin plate made by injecting a resin between a plurality of reinforcing bars in a preset arrangement form; and is

The body, the reinforcing plate with the resin board stacks up the setting in proper order, just the body with reinforcing plate fixed connection, the reinforcing plate with resin board fixed connection.

2. The lower swing arm assembly of a vehicle according to claim 1,

the reinforcing rib comprises a plurality of fiber bundles with the same or different lengths.

3. The lower swing arm assembly of a vehicle according to claim 2,

the resin plate comprises an installation notch for installing a front lining of the swing arm;

the preset arrangement form of the reinforcing ribs comprises the radial arrangement with the installation notches as centers.

4. The lower swing arm assembly of a vehicle according to claim 3,

the predetermined arrangement of the plurality of reinforcing beads further includes penetrating the resin plate in the lateral direction of the vehicle.

5. The lower swing arm assembly of a vehicle according to claim 3,

each of the reinforcing beads arranged in the lateral and longitudinal directions of the vehicle among the plurality of reinforcing beads is provided to extend continuously and uniformly.

6. The lower swing arm assembly of a vehicle according to any one of claims 1 to 5, further comprising:

the resin ball bowl is in a bowl shape and is arranged at the ball seat of the body for mounting the swing arm ball head.

7. The lower swing arm assembly of a vehicle according to claim 1,

the body with the reinforcing plate passes through welding mode fixed connection.

8. The lower swing arm assembly of a vehicle according to claim 1,

the body and the reinforcing plate are made of single-layer high-strength stamping steel.

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