CN112298359A - Front auxiliary frame rear mounting seat structure, front auxiliary frame and vehicle - Google Patents
Front auxiliary frame rear mounting seat structure, front auxiliary frame and vehicle Download PDFInfo
- Publication number
- CN112298359A CN112298359A CN201910682624.9A CN201910682624A CN112298359A CN 112298359 A CN112298359 A CN 112298359A CN 201910682624 A CN201910682624 A CN 201910682624A CN 112298359 A CN112298359 A CN 112298359A
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- China
- Prior art keywords
- mounting seat
- front subframe
- hole
- auxiliary frame
- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/09—Means for mounting load bearing surfaces
Abstract
The invention discloses a front subframe rear mounting seat structure, a front subframe and a vehicle, wherein the rear mounting seat comprises a bottom plate, a plurality of connecting holes, a first connecting end and a second connecting end, the connecting holes are formed in the bottom plate and are used for connecting the front subframe rear mounting seat structure with a vehicle body component, the first connecting end and the second connecting end are arranged on the bottom plate, the first connecting end is used for being connected with a front subframe longitudinal beam, the second connecting end is used for being connected with a front subframe rear cross beam, and the front subframe rear mounting seat structure is an integrally formed structure.
Description
Technical Field
The invention relates to the field of vehicle structures, in particular to a front auxiliary frame rear mounting seat structure, a front auxiliary frame and a vehicle.
Background
The front auxiliary frame of the automobile is used as a very important structural component in an automobile chassis system, and the main function of the front auxiliary frame is to connect a front axle and an automobile body and play a role in bearing and transferring load. The design of the front subframe is particularly important because of the number of parts and structures connected to the front subframe.
The conventional front subframe is formed by tailor welding left and right side members and front and rear cross members, and as shown in fig. 1 and 2, the front subframe is coupled to a vehicle body through a vehicle body mounting hole 100. Wherein the vehicle body mounting hole 100 is integrated to the side member upper plate 200 and the side member lower plate 300 through a sleeve. The rear swing arm is connected with the auxiliary frame through the rear swing arm mounting hole 400, the Z-direction rigidity of the rear swing arm mounting point is improved through the rear swing arm mounting point reinforcing support 500, and the auxiliary frame is guided to slide under the central collision working condition through the rear swing arm mounting point upper support 600. The rear suspension bracket is connected with the sub-frame through the rear suspension mounting hole 700, and the Z-direction rigidity of the rear suspension mounting point is improved through the reinforcing plate 800. However, the structure is redundant, each part exists independently and is assembled together through a welding process, the stress of the rear mounting seat is uneven in the running process of the vehicle, and due to the fact that the number of parts of the rear mounting seat is large, the parts are unstable in connection and abnormal sound can occur in the long-term use process, and the performance of the whole vehicle is further affected.
Disclosure of Invention
In view of the above problems of the prior art, an object of the present invention is to provide a front subframe rear mount structure, a front subframe, and a vehicle.
In order to solve the technical problems, the specific technical scheme of the invention is as follows:
in one aspect, the invention provides a rear mounting seat structure of a front subframe, which comprises a bottom plate, a plurality of connecting holes, a first connecting end and a second connecting end, wherein the connecting holes are arranged on the bottom plate, for connecting the front subframe rear mount structure with a vehicle body component, the first and second connection ends being provided on the floor, the first connecting end and the second connecting end are generally arranged in a right angle, the first connecting end is used for being connected with the front subframe longitudinal beam, the second connecting end is used for being connected with a rear cross beam of the front auxiliary frame, the rear mounting seat structure of the front auxiliary frame is an integrally formed structure, in particular, the rear mounting seat structure of the front auxiliary frame is an aluminum casting, because the aluminum casting is provided with a layer of anticorrosive and antirust oxide film, the step of surface coating is not needed, and the pollution of surface spraying materials to the environment is avoided.
Further, the connecting hole includes vehicle connection hole, back swing arm mounting hole and rear suspension mounting hole, vehicle connection hole is used for being connected preceding sub vehicle frame and automobile body, the rear swing arm mounting hole is used for being connected preceding sub vehicle frame and back swing arm, rear suspension mounting hole is used for being connected preceding sub vehicle frame and rear suspension leg.
Optionally, the number of the vehicle body connecting holes is one, the number of the rear swing arm mounting holes is two, and the number of the rear suspension bracket mounting holes is three.
Further, the front auxiliary frame rear mounting seat structure further comprises a reinforcing support, the reinforcing support is used for being connected with the connecting hole, the reinforcing support is perpendicular to the bottom plate, an inner cavity is formed between the reinforcing supports, and the reinforcing supports are used for reinforcing the strength of the connecting hole.
Specifically, the positions of the connecting holes and the reinforcing support are designed by identifying main load transmission paths of the rear mounting seat of the front subframe through a topology optimization technology, so that the structural design of the rear mounting seat of the front subframe is optimal under the condition that the performance of the rear mounting seat of the front subframe can be met.
Furthermore, the edge of the upper part of the inner cavity is provided with a fillet, which is beneficial to improving the stability of the connecting supports connected with each other, and optionally, the bottom of the inner cavity is also provided with the fillet.
Furthermore, the inner cavity bottom still is provided with the weeping hole to in time flow out the hydrops in the inner cavity, avoid the hydrops to destroy the structure on back mount pad surface.
Preferably, the first connecting end is connected with the front subframe longitudinal beam through a welding seam; and the second connecting end is connected with the rear cross beam of the front auxiliary frame in a welding seam mode.
Optionally, the first connecting end and the second connecting end are both provided with sleeving parts, the sleeving parts of the first connecting end are sleeved inside the front subframe longitudinal beam and then welded at the connecting part through a welding seam process, so that the welding area and length can be reduced; the sleeving part of the second connecting end is used for being sleeved inside the rear cross beam of the front auxiliary frame, and then the connecting part is welded through a welding seam process, so that the welding area and the welding length can be reduced.
On the other hand, the invention also provides the front auxiliary frame which is in a rectangular frame design and comprises symmetrically designed rear mounting seat structures, wherein the rear mounting seat structure is the rear mounting seat structure of the front auxiliary frame.
In a third aspect of the invention, a vehicle is further provided, and the vehicle is provided with the front auxiliary frame.
By adopting the technical scheme, the rear mounting seat structure of the front auxiliary frame, the front auxiliary frame and the vehicle have the following beneficial effects:
1. according to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the rear mounting seat is connected with the front auxiliary frame longitudinal beam and the rear cross beam, so that the strength and the rigidity of the front auxiliary frame in the horizontal direction are increased.
2. According to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the rear mounting seat is formed by the aluminum casting, the mounting points can be conveniently integrated, the structure is simple, the number of parts is effectively reduced, the assembly process is reduced, and the efficiency is improved.
3. According to the front subframe rear mounting seat structure, the front subframe and the vehicle, the aluminum casting is provided with the anticorrosive and antirust oxide film, so that the step of surface coating is not needed, the pollution of surface spraying materials to the environment is avoided, the cost is reduced, and the purpose of light weight is achieved.
4. According to the front subframe rear mounting seat structure, the front subframe and the vehicle, the subframe rear mounting seat is connected with the vehicle body part through the welding seam process, the welding area is few, the welding seam is short, the welding seam heat affected zone is greatly reduced, and therefore the influence of the welding seam heat affected zone on the connection strength is effectively reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a diagram of a front subframe structure in the prior art;
FIG. 2 is a schematic view of part A of FIG. 1;
FIG. 3 is a schematic diagram of a front subframe configuration according to the present invention;
fig. 4 is a schematic structural view of the rear mount in fig. 3.
In the figure: 1-bottom plate, 2-connecting hole, 3-first connecting end, 4-second connecting end, 5-reinforcing bracket, 6-inner cavity, 7-liquid leakage hole, 8-front subframe longitudinal beam, 9-front subframe cross beam, 21-body connecting hole, 22-rear swing arm mounting hole, 23-rear suspension bracket mounting hole, 61-fillet, 100-body mounting hole, 200-longitudinal beam upper plate, 300-longitudinal beam lower plate, 400-rear swing arm mounting hole, 500-reinforcing bracket, 600-rear swing arm mounting point upper bracket, 700-rear suspension mounting hole and 800-reinforcing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
Example 1
The front auxiliary frame of the automobile is used as a very important structural component in an automobile chassis system, and the main function of the front auxiliary frame is to connect a front axle and an automobile body and play a role in bearing and transferring load. The design of the front subframe is particularly important because of the number of parts and structures connected to the front subframe. In view of the situation that the conventional subframe has many connecting parts and is unstable in structure, one embodiment of the present disclosure provides a front subframe rear mounting seat structure, as shown in fig. 3, which is a schematic view of the overall structure of the subframe provided by the present disclosure, wherein a portion B indicates a specific position of the rear mounting seat.
Specifically, as shown in fig. 4, which is a schematic structural diagram of the rear mount structure, firstly, an embodiment of the present disclosure provides a rear mount structure including a first connection end 3 and a second connection end 4, which are used for connecting with an external connection member, specifically, the first connection end 3 is used for connecting with a front subframe longitudinal beam 8, the second connection end 4 is used for connecting with the subframe rear cross beam 9, and the strength and rigidity of the front subframe rear cross beam 9 in the Y direction can be increased by providing the rear mount structure.
Meanwhile, in the prior art, topology optimization can find an optimal design path in a design space. Therefore, the front sub-frame rear mounting seat structure can be designed through a topology optimization technology after a main load transmission path of the rear mounting seat is identified, the rear mounting seat structure can be designed through the path, the structure of the rear mounting seat is optimal and reasonable, and therefore the rear mounting seat achieves the lightest weight on the premise of meeting the performance.
Furthermore, the front auxiliary frame rear mounting seat is of an integrally formed structure, a plurality of parts can be integrated into a whole, multiple times of welding is avoided, and the assembly process flow is reduced. As an example, the front sub-frame rear mounting seat structure can adopt an aluminum casting, on one hand, the aluminum casting has a mature technical process, and can ensure the large-rule and high-efficiency production, so that the cost is reduced, and on the other hand, because the aluminum casting is provided with an anticorrosive and antirust oxide film, the step of surface coating is not needed, so that the pollution of a surface spraying material to the environment is avoided.
As a connecting member, an embodiment provided in this specification further includes a bottom plate 1 and a plurality of connecting holes 2, where the bottom plate 1 is disposed as a bearing carrier of the connecting holes 2, the connecting holes 2 may be located on the bottom plate 1 by a topology optimization technique, where the connecting holes 2 are all in a cylindrical design, and specifically, the connecting holes 2 include a vehicle body connecting hole 21, a rear swing arm mounting hole 22, and a rear suspension bracket mounting hole 23, where the vehicle body connecting hole 21 is used to connect a front subframe with a vehicle body, the rear swing arm mounting hole 22 is used to connect the front subframe with a rear swing arm, and the rear suspension bracket mounting hole 23 is used to connect the front subframe with a rear suspension bracket, where the connecting form may be bolt connection, welding, and the like.
Of course, in order to better connect the front subframe with the vehicle body component, a plurality of connection holes may be provided, and preferably, one vehicle body connection hole 21, two rear swing arm mounting holes 22, three rear suspension bracket mounting holes 23 are provided, and the positional relationships among the vehicle body connection hole 21, the rear swing arm mounting hole 22, and the rear suspension bracket mounting hole 23 may also be set according to a topology optimization technology.
Because the connecting holes 2 are independent and in a cylindrical design, the stability and the strength of the connecting holes 2 are greatly weakened, the bottom plate 1 is provided with the reinforcing bracket 5, the reinforcing bracket 5 can be connected with the connecting holes 2, the strength and the rigidity can be increased through the connection between the connecting holes 2, and the reinforcing bracket 5 can be vertically designed with the bottom plate 1.
Because the inner cavity 6 can be formed between the reinforcing brackets 5, the inner cavity 6 can play a role in reinforcing the inner cavity and buffering the inner cavity, and therefore the strength of the front auxiliary frame is improved.
In order to further improve the intensity of preceding sub vehicle frame can set up radius 61 at 6 upper edges of inner chamber, can improve interconnect's linking bridge's intensity, and then improves the intensity of inner chamber 6 to reach the improvement the effect of the intensity of preceding sub vehicle frame has certainly also set up the radius angle in the bottom of inner chamber, can improve bottom plate 1's intensity, avoids receiving the stress and takes place the condition of deformation, simultaneously with the outflow that does benefit to hydrops in the inner chamber 6.
In order to avoid the accumulation of the interior liquid of inner chamber 6, can set up weeping hole 7 in inner chamber 6 bottoms to the outflow of hydrops, thereby the solute through also avoiding in the hydrops contacts for a long time with preceding sub vehicle frame surface oxide film and takes place the reaction and destroy the structure of oxide film, influences the wholeness ability of preceding sub vehicle frame.
In order to improve the connection strength, the first connection end and the second connection end are both provided with sleeving parts, the sleeving parts of the first connection end are sleeved inside the front subframe longitudinal beam and are welded at the connection part through a welding seam process, and the welding area and the welding length can be reduced; the sleeving part of the second connecting end is used for being sleeved inside the rear cross beam of the front auxiliary frame, and then the connecting part is welded through a welding seam process, so that the welding area and the welding length can be reduced.
Still provide a preceding sub vehicle frame through another embodiment of this specification, preceding sub vehicle frame is the design of rectangle frame, preceding sub vehicle frame is including the back mount pad structure that is the symmetrical design, wherein the back mount pad structure is for the aforesaid provides a preceding sub vehicle frame back mount pad structure.
A third embodiment of the present specification provides a vehicle provided with a front subframe as provided above.
Install seat structure, preceding sub vehicle frame and vehicle behind preceding sub vehicle frame that provides through this embodiment have following beneficial effect:
1) according to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the rear mounting seat is connected with the front auxiliary frame longitudinal beam and the rear cross beam, so that the strength and the rigidity of the front auxiliary frame in the horizontal direction are increased.
2) According to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the rear mounting seat is formed by the aluminum casting, and whether the mounting points are convenient to integrate is achieved.
3) According to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the strength of the front auxiliary frame rear mounting seat structure is increased by arranging the fillets.
4) According to the front auxiliary frame rear mounting seat structure, the front auxiliary frame and the vehicle, the aluminum casting is provided with the anticorrosive and antirust oxide film, so that the step of surface coating is not needed, the pollution of surface spraying materials to the environment is avoided, and the cost is reduced.
5) According to the front subframe rear mounting seat structure, the front subframe and the vehicle, the subframe rear mounting seat is connected with the vehicle body part through the welding seam process, the welding area is few, the welding seam is short, the welding seam heat affected zone is greatly reduced, and therefore the influence of the welding seam heat affected zone on the connection strength is effectively reduced.
While the invention has been described with reference to specific embodiments, it will be appreciated by those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention can be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a preceding sub vehicle frame rear mounting seat structure, its characterized in that includes bottom plate (1), a plurality of connecting hole (2), first link (3) and second link (4), connecting hole (2) set up on bottom plate (1), be used for with preceding sub vehicle frame rear mounting seat structure is connected with automobile body part, first link (3) and second link (4) set up on bottom plate (1), first link (3) are used for being connected with preceding sub vehicle frame longeron (8), second link (4) are used for being connected with preceding sub vehicle frame rear cross beam (9), preceding sub vehicle frame rear mounting seat structure is the integrated into one piece structure.
2. The front subframe rear mount structure according to claim 1, wherein the connection hole (2) includes a body connection hole (21), a rear swing arm mounting hole (22), and a rear suspension bracket mounting hole (23), the body connection hole (21) is used for connecting the front subframe with a vehicle body, the rear swing arm mounting hole (22) is used for connecting the front subframe with a rear swing arm, and the rear suspension bracket mounting hole (23) is used for connecting the front subframe with a rear suspension bracket.
3. The front subframe rear mount structure of claim 2 wherein there is one body attachment hole (21), two rear swing arm mounting holes (22), and three rear suspension bracket mounting holes (23).
4. The front sub-frame rear mount structure according to claim 2, further comprising reinforcing brackets (5), wherein the reinforcing brackets (5) are used for connecting the connecting holes (2), the reinforcing brackets (5) are perpendicular to the base plate (1), and inner cavities (6) are formed between the reinforcing brackets (5).
5. A front sub frame rear mount structure according to claim 4, wherein the bottom and upper edges of the cavity (6) are rounded (61).
6. The front sub-frame rear mount structure according to claim 5, wherein the bottom of the cavity (6) is further provided with a weep hole (7).
7. The front subframe rear mount structure of claim 5 wherein the first connection end (3) is connected to the front subframe rail (8) by a weld; and the second connecting end (4) is connected with the rear cross beam (9) of the front auxiliary frame in a welding seam mode.
8. The front subframe rear mount structure of claim 5 wherein said front subframe rear mount structure is an aluminum casting.
9. A front sub frame characterized in that it is provided with a front sub frame rear mount structure according to any one of claims 1 to 7.
10. A vehicle provided with a front sub-frame according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682624.9A CN112298359A (en) | 2019-07-26 | 2019-07-26 | Front auxiliary frame rear mounting seat structure, front auxiliary frame and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682624.9A CN112298359A (en) | 2019-07-26 | 2019-07-26 | Front auxiliary frame rear mounting seat structure, front auxiliary frame and vehicle |
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| Publication Number | Publication Date |
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| CN112298359A true CN112298359A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910682624.9A Pending CN112298359A (en) | 2019-07-26 | 2019-07-26 | Front auxiliary frame rear mounting seat structure, front auxiliary frame and vehicle |
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| CN (1) | CN112298359A (en) |
Citations (10)
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|---|---|---|---|---|
| EP0696535A1 (en) * | 1994-08-09 | 1996-02-14 | Mercedes-Benz Ag | Frame head for a chassis frame of a truck |
| EP1270374A2 (en) * | 2001-06-29 | 2003-01-02 | Sistemi Sospensioni S.p.A. | A cross-member for a motor-vehicle suspension system |
| US20070024044A1 (en) * | 2004-03-31 | 2007-02-01 | Tsutomu Ogawa | Subframe for vehicle, and bush installation structure |
| CN105109555A (en) * | 2015-09-06 | 2015-12-02 | 上海友升铝业有限公司 | Fully extrusion-molded aluminum alloy auxiliary vehicle frame |
| CN207657901U (en) * | 2018-01-04 | 2018-07-27 | 宁波建新底盘系统有限公司 | A kind of subframe |
| CN207683600U (en) * | 2017-09-21 | 2018-08-03 | 比亚迪股份有限公司 | Fore sub frame and automobile |
| CN109263722A (en) * | 2018-10-19 | 2019-01-25 | 广州汽车集团股份有限公司 | Fore sub frame and automobile |
| CN208498599U (en) * | 2018-07-06 | 2019-02-15 | 广州汽车集团股份有限公司 | A kind of front-end module and its main frame |
| CN209037663U (en) * | 2018-10-10 | 2019-06-28 | 上汽通用汽车有限公司 | The full frame subframe of one and vehicle |
| CN110027629A (en) * | 2019-05-24 | 2019-07-19 | 苏州同捷汽车工程技术股份有限公司 | A kind of fore sub frame and attaching method thereof based on aluminum alloy materials |
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2019
- 2019-07-26 CN CN201910682624.9A patent/CN112298359A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0696535A1 (en) * | 1994-08-09 | 1996-02-14 | Mercedes-Benz Ag | Frame head for a chassis frame of a truck |
| EP1270374A2 (en) * | 2001-06-29 | 2003-01-02 | Sistemi Sospensioni S.p.A. | A cross-member for a motor-vehicle suspension system |
| US20070024044A1 (en) * | 2004-03-31 | 2007-02-01 | Tsutomu Ogawa | Subframe for vehicle, and bush installation structure |
| CN105109555A (en) * | 2015-09-06 | 2015-12-02 | 上海友升铝业有限公司 | Fully extrusion-molded aluminum alloy auxiliary vehicle frame |
| CN207683600U (en) * | 2017-09-21 | 2018-08-03 | 比亚迪股份有限公司 | Fore sub frame and automobile |
| CN207657901U (en) * | 2018-01-04 | 2018-07-27 | 宁波建新底盘系统有限公司 | A kind of subframe |
| CN208498599U (en) * | 2018-07-06 | 2019-02-15 | 广州汽车集团股份有限公司 | A kind of front-end module and its main frame |
| CN209037663U (en) * | 2018-10-10 | 2019-06-28 | 上汽通用汽车有限公司 | The full frame subframe of one and vehicle |
| CN109263722A (en) * | 2018-10-19 | 2019-01-25 | 广州汽车集团股份有限公司 | Fore sub frame and automobile |
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Effective date of registration: 20220330 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Applicant after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Applicant after: Zhejiang liankong Technology Co.,Ltd. Address before: 315336 818 Binhai two road, Hangzhou Bay New District, Ningbo, Zhejiang Applicant before: NINGBO GEELY AUTOMOBILE RESEARCH AND DEVELOPMENT Co.,Ltd. Applicant before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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