CN111376981A - A new type of swing arm mounting bracket - Google Patents

Abstract

The invention discloses a novel swing arm mounting bracket, and relates to the field of electric automobiles. The swing arm installing support is used for being connected with the auxiliary frame longitudinal beam, the swing arm installing support comprises a support top panel and a support side panel, the support top panel and the support side panel are arranged at a certain angle and are both attached to the outer wall of the auxiliary frame longitudinal beam, and a support lightening hole penetrating through is formed in the middle of the support side panel. The weight of the whole vehicle is greatly reduced due to the arrangement of the lightening holes of the bracket. The invention has simple structure and forming, high manufacturing precision and small part mass, and is beneficial to the light weight of the whole vehicle.

Description

A new type of swing arm mounting bracket

technical field

The invention relates to the field of electric vehicles, in particular to a novel swing arm mounting bracket.

Background technique

In electric vehicles, the general swing arm mounting bracket has the following shortcomings: 1. The swing arm mounting bracket is welded by multilayer stamping steel plates, and the accuracy of the stamping parts is difficult to guarantee. . 2. The structure of the multi-layer steel plate welding mounting bracket is complex and the overall weight is large, which is not conducive to the lightweight of the vehicle. 3. When clamping the swing arm bushing, the layered steel plate is compressed by the bolt moment and the deformation is small, which is not conducive to tightening the swing arm bushing, and the vehicle is prone to abnormal noise when driving on bumpy roads.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a new type of swing arm mounting bracket.

The present invention is realized according to the following technical solutions.

A new type of swing arm mounting bracket is used for connecting with the longitudinal beam of the subframe. The swing arm mounting bracket includes a bracket top panel and a bracket side panel. The bracket top panel and the bracket side panel are arranged at a certain angle and are both connected to the subframe. The outer walls of the longitudinal beams are in contact with each other, and the middle part of the side panel of the bracket forms a through-support weight-reducing hole.

Further, bushing fixing brackets are connected to the bracket side panels on both sides of the bracket weight reduction hole, and the end of the bushing fixing bracket forms a bushing mounting hole; the swing arm mounting bracket is also used for connecting with the swing arm. The end of the swing arm is connected to the swing arm bushing, and the swing arm bush and the bushing mounting hole are movably connected to the swing arm mounting bracket through the penetration of the swing arm mounting bolts.

Further, a reinforcing rib is formed between the bushing fixing frame and the side panel of the bracket.

Further, there are two reinforcing ribs between each bushing fixing frame of the swing arm mounting bracket and the side panel of the bracket.

Further, two upper and lower reinforcing ribs are arranged between the bushing fixing frame and the side panel of the bracket, and the area of the lower reinforcing rib is larger than that of the upper reinforcing rib.

Further, an anti-loosening nut is nested at the end of the swing arm mounting bolt.

Further, a top surface mounting hole and two side mounting holes are respectively formed on the bracket top panel and the bracket side panel of the swing arm mounting bracket, and the peripheries of the top surface mounting hole and the side mounting hole are close to one side of the longitudinal beam of the subframe. An annular raised portion is formed on both sides, and the surface of the annular raised portion is flat and smooth.

Further, mounting bolts of the subframe penetrate through the top surface mounting hole and the two side mounting holes to realize the fixing of the swing arm mounting bracket and the longitudinal beam of the subframe.

Further, a box-shaped raised portion is formed on the periphery of the bracket weight-reducing hole close to one side of the side member of the subframe, and the top surface of the box-shaped raised portion is the height of the top surface of the annular raised portion around the side mounting hole. flush.

Further, the swing arm mounting bracket is cast by an aluminum alloy integrated die-casting process; the bracket top panel, the bracket side panel, and the ends of the bushing fixing frame are smoothed by arc-shaped chamfering.

A subframe includes the novel swing arm mounting bracket described in any one of the above.

A vehicle includes the above-mentioned subframe.

The advantages and beneficial effects that the present invention has are:

The invention is made of aluminum alloy A380 material, which produces slight deformation when subjected to the axial pressure of the bolt, which can better clamp the swing arm bushing and avoid abnormal noises when driving on bumpy roads. At the same time, the structure is simple and the weight of the parts is small, which is beneficial to the lightweight of the whole vehicle. By optimizing the structure of the swing arm mounting bracket, the entire bracket is a high-pressure casting aluminum alloy structure, which is simple in shape and high in manufacturing precision, and greatly reduces production costs.

Description of drawings

Fig. 1 is the structural representation of the present invention (front view);

Fig. 2 is the structural representation of the present invention (back view);

FIG. 3 is a schematic diagram of the installation position of the present invention.

Among them, 1. Subframe longitudinal beam; 2. Swing arm; 3. Anti-loosening nut; 4. Swing arm bushing; 5. Swing arm mounting bolt; 6. Subframe mounting bolt; 7. Top surface mounting hole ; 8. Side mounting holes; 9. Bushing mounting holes; 10. Bracket weight reduction holes; 11. Reinforcing ribs.

Detailed ways

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

As shown in Figures 1-3, a new type of swing arm mounting bracket is used to connect with the subframe longitudinal beam 1, and it is characterized in that: the swing arm mounting bracket includes a bracket top panel and a bracket side panel, and the bracket top panel and The side panels of the brackets are arranged at a certain angle and are in contact with the outer wall of the longitudinal beam 1 of the subframe, and the middle of the side panels of the brackets is formed with a bracket weight-reducing hole 10 penetrating therethrough.

In the present invention, the top panel of the bracket is a fixed plate attached to the upper surface of the longitudinal beam 1 of the subframe, the side panel of the bracket is a fixed plate attached to the side surface of the longitudinal beam 1 of the subframe, and the top panel of the bracket is perpendicular to the side panel of the bracket set up.

Bushing fixing brackets are connected to the bracket side panels on both sides of the bracket weight-reducing hole 10 , and a bushing mounting hole 9 is formed at the end of the bushing fixing bracket; the swing arm mounting bracket is also used for connecting with the swing arm 2 The end of the swing arm 2 is connected to the swing arm bushing 4, and the swing arm bushing 4 and the bushing mounting hole 9 are movably connected to the swing arm mounting bracket through the penetration of the swing arm mounting bolt 5.

The bushing fixing frame is vertically fixed on the side panel of the bracket.

A reinforcing rib 11 is formed between the bushing fixing frame and the side panel of the bracket.

There are two reinforcing ribs 11 between each bushing fixing frame of the swing arm mounting bracket and the side panel of the bracket.

Two upper and lower reinforcing ribs 11 are arranged between the bushing fixing frame and the side panel of the bracket, and the area of the lower reinforcing rib 11 is larger than that of the upper reinforcing rib 11 . Because the force of the lower part of the swing arm mounting bracket is greater than that of the upper part, the invention increases the area of the lower reinforcing rib and reduces the area of the upper reinforcing rib, which not only meets the needs of the project, but also reduces the cost.

An anti-loosening nut 3 is nested at the end of the swing arm mounting bolt 5 .

A top surface mounting hole 7 and two side mounting holes 8 are respectively formed on the bracket top panel and the bracket side panel of the swing arm mounting bracket, and the peripheries of the top surface mounting hole 7 and the side mounting hole 8 are close to the subframe longitudinal beam 1 An annular raised portion is formed on one side of the annular raised portion, and the surface of the annular raised portion is flat and smooth. The present invention only needs to smooth the protrusions of the top surface mounting hole 7 and the side mounting hole 8 in contact with the longitudinal beam 1 of the subframe, without the need to process the entire side panel of the bracket, thereby reducing the process and difficulty, and better Fix the swing arm mounting bracket to the subframe longitudinal beam 1. In addition, the arrangement of the protruding portion also solves the problem that the swing arm mounting bracket and the longitudinal beam 1 of the sub-frame are easily loosened after being fixed for a long time.

The top surface mounting holes 7 and the two side mounting holes 8 pass through the subframe mounting bolts 6 to achieve the fixing of the swing arm mounting bracket and the subframe longitudinal beam 1 .

The periphery of the bracket weight-reducing hole 10 close to the side of the subframe longitudinal beam 1 forms a box-shaped convex portion, and the top surface of the box-shaped convex portion is the height of the top surface of the annular convex portion around the side mounting hole 8 flush.

The swing arm mounting bracket is made of an aluminum alloy integrated die-casting molding process; the top panel of the bracket, the side panel of the bracket, and the ends of the bushing fixing frame are smoothed by arc-shaped chamfering.

A subframe includes the novel swing arm mounting bracket described in any one of the above.

A vehicle comprising the above-mentioned subframe.

The subframe longitudinal beam 1 is connected with the swing arm mounting bracket 2 through three subframe mounting bolts 6, and the swing arm bushing 4 and the swing arm mounting bracket are connected together by the swing arm mounting bolt 5 and the locking nut 3 after tightening.

The swing arm mounting bracket itself is an aluminum alloy A380 one-piece die-casting part, and the die-casting manufacturing process is simple and high-precision. At the same time, there are bracket weight-reducing holes 10 on the swing arm mounting bracket, which not only effectively reduces the weight of the swing arm mounting bracket itself, but also saves raw materials.

When the swing arm mounting bracket is installed with the swing arm bushing 4, it will deform when subjected to the pressing force of the bolts, so that the swing arm mounting bracket is more firmly connected with the swing arm bushing 4 to prevent the vehicle from moving abnormally when driving on bumpy roads. ring.

Claims (10)

1. The utility model provides a novel swing arm installing support for be connected its characterized in that with sub vehicle frame longeron (1): the swing arm installing support comprises a support top panel and a support side panel, the support top panel and the support side panel are arranged at a certain angle and are attached to the outer wall of the auxiliary frame longitudinal beam (1), and a support lightening hole (10) penetrating through is formed in the middle of the support side panel.

2. A novel swing arm mounting bracket as claimed in claim 1, wherein the bracket side panels at both sides of the bracket lightening hole (10) are connected with bushing fixing frames, and the ends of the bushing fixing frames form bushing mounting holes (9); the swing arm mounting bracket is further used for being connected with the swing arm (2), the tail end of the swing arm (2) is connected with a swing arm bushing (4), and the swing arm bushing (4) and a bushing mounting hole (9) are connected through a swing arm mounting bolt (5) in a penetrating mode to achieve movable connection of the swing arm (2) and the swing arm mounting bracket.

3. A novel swing arm mounting bracket as claimed in claim 2, wherein a stiffener (11) is formed between the bushing holder and the bracket side panel.

4. A novel swing arm mounting bracket according to claim 3, characterized in that there are two reinforcing ribs (11) between each bushing holder and the bracket side panel of the swing arm mounting bracket.

5. A novel swing arm mounting bracket as claimed in claim 4, wherein an upper reinforcing rib and a lower reinforcing rib (11) are arranged between the bushing fixing frame and the side panel of the bracket, and the area of the lower reinforcing rib (11) is larger than that of the upper reinforcing rib (11).

6. A novel swing arm mounting bracket as claimed in claim 1, wherein a top surface mounting hole (7) and two side surface mounting holes (8) are respectively formed on the bracket top panel and the bracket side panel of the swing arm mounting bracket, and annular convex parts are formed on the sides of the peripheries of the top surface mounting hole (7) and the side surface mounting holes (8) close to the subframe longitudinal beam (1), and the surfaces of the annular convex parts are flat and smooth; and the swing arm mounting bracket and the auxiliary frame longitudinal beam (1) are fixed by penetrating through the auxiliary frame mounting bolts (6) in the top surface mounting hole (7) and the two side surface mounting holes (8).

7. A novel swing arm mounting bracket as claimed in claim 1, characterized in that the periphery of the bracket lightening hole (10) near one side of the auxiliary frame longitudinal beam (1) forms a square-frame-shaped boss, and the top surface of the square-frame-shaped boss is flush with the top surface of the annular boss at the periphery of the side mounting hole (8).

8. A novel swing arm mounting bracket as claimed in any of claims 1 to 7 wherein said swing arm mounting bracket is cast from an aluminum alloy by an integral die casting process; the tail ends of the support top panel, the support side panel and the bush fixing frame are subjected to smoothing treatment in a circular arc chamfering mode.

9. A subframe comprising the novel swing arm mounting bracket of any of claims 1-8.

10. A vehicle comprising the subframe of claim 9.

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