CN210734288U - Auxiliary frame rear cross beam - Google Patents
Auxiliary frame rear cross beam Download PDFInfo
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- CN210734288U CN210734288U CN201921807235.6U CN201921807235U CN210734288U CN 210734288 U CN210734288 U CN 210734288U CN 201921807235 U CN201921807235 U CN 201921807235U CN 210734288 U CN210734288 U CN 210734288U
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- beam body
- cross member
- bending part
- rear cross
- bent
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Abstract
The utility model discloses an auxiliary frame rear cross beam, which comprises a front beam body and a rear beam body, wherein the rear beam body is attached to the back of the front beam body and is fixedly connected with the front beam body, the upper edge of the front beam body is bent forwards to form a front bent part, the upper edge of the rear beam body is bent backwards to form a rear bent part, and the front bent part and the rear bent part are connected into a whole through a reinforcing plate; the utility model discloses preceding bending portion and back bending portion form additional strengthening as the turn-ups additional strengthening to the front beam body and the back beam body, and preceding bending portion and back bending portion and reinforcing plate surround into approximate triangle-shaped's cavity simultaneously, improve its structural strength and torsional rigidity, have reduced local reinforcement, guarantee overall structure's lightweight, and the rear end rail of this structure has increased the bending resistance cross sectional area of sub vehicle frame rear end rail, has improved technology shaping ability.
Description
Technical Field
The utility model belongs to the technical field of the automobile manufacturing, a sub vehicle frame rear frame is related to.
Background
In the design of a finished automobile chassis, a rear auxiliary frame of an automobile is provided with a plurality of hard points connected with a plurality of connecting rods and a body-in-white, the stress of the rear auxiliary frame is complex and is a main supporting piece, so that the rigidity, the strength, the mode and the like of the rear auxiliary frame are important reference indexes of the rear auxiliary frame, the auxiliary frame supports the stabilizer rod connecting rod through the supporting piece, the suspension, the longitudinal swing arm and the like cannot meet the requirements on the rigidity, the strength, the mode dynamic rigidity and the like, and the use requirements are met through local reinforcing pieces. The structure causes excessive local reinforcements, excessive strength of non-concentration areas and overstaffed structure;
therefore, in view of the above problems, there is a need for a subframe rear cross member that integrates a plurality of connection functions into one body using an integrated design, reduces the number of connectors connected to the rear cross member, and eliminates local stress concentration in welding due to the connectors; the rigidity and strength requirements of the whole structure are guaranteed through the whole local reinforcing structure which is similar to the I-shaped cross section and formed by stamping, local reinforcing parts are reduced, and the light weight of the whole structure is guaranteed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides an auxiliary frame rear cross beam, which integrates a plurality of connection functions into a whole by adopting an integrated design, reduces the connection pieces connected to the rear cross beam, and eliminates the local stress concentration of welding caused by the connection pieces; the rigidity and strength requirements of the whole structure are guaranteed through the whole local reinforcing structure which is similar to the I-shaped cross section and formed by stamping, local reinforcing parts are reduced, and the light weight of the whole structure is guaranteed.
The utility model discloses a sub vehicle frame rear frame, including the front truck body and the back truck body, the back truck body is laminated in front truck body back and fixed connection, kink before the preceding bending type of border formation on the front truck body, kink after the back truck body border backward bending type of formation, even as an organic whole through the reinforcing plate between preceding bending type and the back bending type.
Furthermore, the left and right corners of the front bending part are bent forwards to form a front bending angle, the left and right corners of the rear bending part are bent backwards to form a rear bending angle, and swing arm mounting holes are formed in the front bending angle and the rear bending angle.
Furthermore, a pair of rear suspension mounting holes for mounting a rear suspension is formed in the middle of the rear beam body.
Furthermore, an avoiding groove is formed in the middle of the front beam body and used for avoiding the rear suspension mounting hole.
Furthermore, the left and right angular beam bodies at the lower edges of the front beam body and the rear beam body are retracted to form an avoiding area for avoiding the rear suspension stabilizer bar.
Furthermore, the lower edge of the rear beam body is bent backwards to form a flange I, the lower edge of the front beam body is bent backwards to form a flange I, and the flange I is connected to the rear beam body.
Furthermore, the edge of the front bending part is bent forwards to form a flange III, and the upper edge of the rear bending part is bent backwards to form a flange IV.
Furthermore, lightening holes are formed in the front beam body and/or the rear beam body.
Furthermore, the front bending part and the rear bending part are provided with wire harness holes.
Furthermore, reinforced bosses formed by stamping are arranged on the front bending part and the rear bending part, and the wire harness hole is formed in the reinforced bosses.
The utility model has the advantages that:
the utility model discloses preceding bending portion and back bending portion form additional strengthening as the turn-ups additional strengthening to the front beam body and back beam body, and preceding bending portion and back bending portion and reinforcing plate surround into the cavity of approximate triangle-shaped simultaneously, improve its structural strength and torsional rigidity, have reduced local reinforcement, guarantee the lightweight of overall structure, and the rear frame of this structure has increased the bending resistance cross-sectional area of sub vehicle frame rear frame, has improved technology shaping ability;
the utility model adopts an integrated design, has the functions of a swing arm bracket and a rear suspension mounting bracket, reduces connecting pieces connected on the rear cross beam, and eliminates local stress concentration caused by the connecting pieces;
drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic view of the front three-dimensional structure of the present invention;
FIG. 2 is a schematic structural view of the front beam body hidden in FIG. 1;
FIG. 3 is a schematic view of the back side of the utility model;
FIG. 4 is a schematic structural view of the rear frame body hidden in FIG. 3;
Detailed Description
FIG. 1 is a schematic view of the front three-dimensional structure of the present invention; FIG. 2 is a schematic structural view of the front beam body hidden in FIG. 1; FIG. 3 is a schematic view of the back side of the utility model; FIG. 4 is a schematic structural view of the rear frame body hidden in FIG. 3;
as shown in the figure: the embodiment provides an auxiliary frame rear cross beam which comprises a front beam body 1 and a rear beam body 2, wherein the rear beam body is attached to the back of the front beam body and fixedly connected with the front beam body, the upper edge of the front beam body is bent forwards to form a front bent part 3, the upper edge of the rear beam body is bent backwards to form a rear bent part 4, and the front bent part and the rear bent part are connected into a whole through a reinforcing plate 5; as shown in fig. 1 to 4, the front beam body and the rear beam body are connected into a whole by welding, the front bending portion and the rear bending portion are used as a flanging reinforcement structure to reinforce the front beam body and the rear beam body, and the front bending portion, the rear bending portion and the reinforcement plate surround a cavity similar to a triangle, so that the structural strength and torsional rigidity of the front beam body are improved, local reinforcements are reduced, the light weight of the whole structure is ensured, the bending section area of the rear beam of the auxiliary frame is increased by the rear beam of the structure, and the process forming capability is improved;
in the embodiment, the left and right corners of the front bending part 3 are bent forwards to form a front bending angle 6, the left and right corners of the rear bending part are bent backwards to form a rear bending angle 7, and the front bending angle 6 and the rear bending angle are provided with swing arm mounting holes 8; as shown in fig. 1, the left-right direction in this embodiment is the same as the left-right direction in fig. 1, wherein a swing arm shaft is installed between a front bending portion and a rear bending portion through a swing arm installation hole, a swing arm is installed on the swing arm shaft, an outward-enlarged installation space is formed between a front bending angle and a rear bending angle, which is beneficial to installation of the swing arm, the front bending angle and the rear bending angle are formed by stamping, and can be of an arc transition bending structure or a step-shaped bending structure, and the structure is integrated with a swing arm installation structure, so that a connecting piece of a swing arm installation support is reduced, and local stress concentration of welding caused by the connecting piece is eliminated;
in this embodiment, a pair of rear suspension mounting holes 9 for mounting a rear suspension is formed in the middle of the rear beam body 2; the rear suspension mounting hole is used for mounting a rear suspension of an engine or a generator; the edge of the suspension mounting hole is provided with an annular circular truncated cone structure extending outwards in the radial direction, so that the contact area of the suspension mounting hole and the rear suspension mounted inside is increased, and the mounting stability is improved; the structure enables the auxiliary frame rear cross beam to have the function of a rear suspension mounting bracket, and eliminates local stress concentration caused by connecting pieces during welding; the number of intermediate connecting pieces is reduced, the error accumulation is reduced, the assembly precision is improved, the structure is compact, and the space layout difficulty is reduced;
in the embodiment, an avoidance groove 10 is formed in the upper middle part of the front beam body 1 and used for avoiding the rear suspension mounting hole; as shown in fig. 4, after the front cross beam and the rear cross beam are connected into a whole, the avoiding groove exposes the middle position of the rear beam body, so that the rear suspension mounting hole is exposed, the avoiding groove plays a role in avoiding, the weight of the rear cross beam is reduced by using the avoiding groove as a weight reduction groove, and the light weight of the whole structure is ensured.
In the embodiment, the left and right corners at the lower edges of the front beam body 1 and the rear beam body 2 are retracted towards the center of the beam body to form an avoiding area 11 for avoiding the rear suspension stabilizer bar; avoidance areas are arranged at the left and right corners of the bottom of the rear cross beam and are used for enabling the rear suspension stabilizer bar to be arranged in the front-back direction, so that the layout of each part is compact, and the space utilization rate is improved;
in the embodiment, the lower edge of the rear beam body 2 is bent backwards to form a flange I13, the lower edge of the front beam body 1 is bent backwards to form a flange I12, and the flange I12 is connected to the rear beam body 2; as shown in the attached drawing, the turned-over edges I12 and I13 respectively reinforce the front beam body and the rear beam body to eliminate the stress concentration phenomenon at the corner positions, and meanwhile, the turned-over edges I12 are connected to the rear beam body 2 to enable the left and right corners at the bottoms of the front beam body and the rear beam body to be enclosed into two triangular cavity areas, so that the integral torsional rigidity and the structural strength of the rear cross beam are improved.
In this embodiment, the edge of the front bending part 3 is bent forwards to form a flange iii 14, and the upper edge of the rear bending part 4 is bent backwards to form a flange iv 15; the width of the turned edge I12 and the turned edge I13 is wide, the width of the turned edge III 14 and the width of the turned edge IV 15 are narrow, the turned edge III forms a continuous structure along the upper edge of the front bent part, and the turned edge IV forms a continuous structure along the upper edge of the rear bent part;
in this embodiment, the front beam body 1 and/or the rear beam body 2 are/is provided with lightening holes 16; the lightening holes can be opened on the front beam body or the rear beam body, or lightening holes can be opened on the front beam body and the rear beam body, in the embodiment, the lightening holes are opened on the front bending angle of the front beam body, a sinking platform structure is arranged at the lightening hole, the lightening holes are opened on the sinking platform structure, the lightening holes are round hole structures, and the positions and the number of the lightening holes can be adjusted correspondingly according to the actual structure;
in this embodiment, the front bending part 3 and the rear bending part 4 are provided with wire harness holes 17; two wire harness holes are formed in the front bending part, two wire harness holes which are in one-to-one correspondence with the front bending part are formed in the rear bending part, so that the wire harnesses can be conveniently penetrated in the front-back direction, and the wire harness holes are of a waist-shaped hole structure and are beneficial to the penetration of the wire harnesses; the shape and the number of the specific wire harness holes can be correspondingly adjusted according to the actual structure;
in this embodiment, the front bent portion 3 and the rear bent portion 4 are provided with reinforcing bosses 18 formed by stamping, and the wire harness holes are formed in the reinforcing bosses; the reinforcing bosses are formed by stamping, so that the overall strength of the beam body is improved, reinforcing ribs formed by stamping are further arranged on the front beam body and the rear beam body, and the reinforcing ribs can be of strip-shaped structures or irregular convex structures, which is not described in detail;
finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (10)
1. The utility model provides a sub vehicle frame rear frame, its characterized in that: including the front beam body and the back beam body, the back beam body is laminated in front beam body back and fixed connection, the preceding kink of border forward bending type formation on the front beam body, the back kink of border backward bending type formation on the back beam body, even as an organic whole through the reinforcing plate between preceding kink and the back kink.
2. The subframe rear cross member of claim 1, wherein: the front bending part left and right corners are bent forwards to form a front bending angle, the rear bending part left and right corners are bent backwards to form a rear bending angle, and swing arm mounting holes are formed in the front bending angle and the rear bending angle.
3. The subframe rear cross member of claim 1, wherein: and the middle part of the back beam body is provided with a pair of back suspension mounting holes for mounting a back suspension.
4. The subframe rear cross member of claim 3, wherein: an avoiding groove is formed in the middle of the front beam body and used for avoiding the rear suspension mounting hole.
5. The subframe rear cross member of claim 1, wherein: and the left and right angular beam bodies at the lower edges of the front beam body and the rear beam body are retracted towards the center of the beam body to form an avoiding area for avoiding the rear suspension stabilizer bar.
6. The subframe rear cross member of claim 1, wherein: the lower edge of the rear beam body is bent backwards to form a flange I, the lower edge of the front beam body is bent backwards to form a flange I, and the flange I is connected to the rear beam body.
7. The subframe rear cross member of claim 6, wherein: the edge of the front bending part is bent forwards to form a flange III, and the upper edge of the rear bending part is bent backwards to form a flange IV.
8. The subframe rear cross member of claim 1, wherein: and lightening holes are formed in the front beam body and/or the rear beam body.
9. The subframe rear cross member of claim 1, wherein: and the front bending part and the rear bending part are provided with wire harness holes.
10. The subframe rear cross member of claim 9, wherein: the front bending part and the rear bending part are provided with reinforced bosses formed by punching, and the wire harness holes are formed in the reinforced bosses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807235.6U CN210734288U (en) | 2019-10-25 | 2019-10-25 | Auxiliary frame rear cross beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921807235.6U CN210734288U (en) | 2019-10-25 | 2019-10-25 | Auxiliary frame rear cross beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210734288U true CN210734288U (en) | 2020-06-12 |
Family
ID=71005394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921807235.6U Active CN210734288U (en) | 2019-10-25 | 2019-10-25 | Auxiliary frame rear cross beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210734288U (en) |
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2019
- 2019-10-25 CN CN201921807235.6U patent/CN210734288U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211118 Address after: 401135 No. 618 Liangjiang Avenue, Longxing Town, Yubei District, Chongqing Patentee after: Chongqing Jin Kang Sai Li Si New Energy Automobile Design Institute Co.,Ltd. Address before: 402260 No.1 Jiujiang Avenue, Shuangfu New District, Jiangjin District, Chongqing Patentee before: CHONGQING BRANCH, DFSK AUTOMOBILE Co.,Ltd. |