CN104590378B - Fore sub frame and automobile - Google Patents
Fore sub frame and automobile Download PDFInfo
- Publication number
- CN104590378B CN104590378B CN201510052109.4A CN201510052109A CN104590378B CN 104590378 B CN104590378 B CN 104590378B CN 201510052109 A CN201510052109 A CN 201510052109A CN 104590378 B CN104590378 B CN 104590378B
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- sub frame
- fore sub
- arm
- trailing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a kind of fore sub frame and automobiles, the fore sub frame includes two trailing arms being oppositely arranged and connects the crossbeam of two trailing arms, crossbeam includes being located at both ends be connected with trailing arm first, positioned at the 3rd of middle part and is connected second of first and the 3rd, first, second, the section factor of the 3rd is sequentially reduced.Fore sub frame provided by the invention, crossbeam is when being subject to the active force from vehicle body helical spring, crossbeam both ends are subject to larger Moment compared with near-end position from trailing arm, and the moment of flexure that center section is subject to is then smaller, it is preferable to have adapted to the stress variation that crossbeam is born since the section factor of crossbeam provided by the invention is sequentially reduced from both ends to the middle.In this way, prismatic straight beam in compared with prior art, for the steel material used in crossbeam middle part just less than the steel material used in both ends, this just saves steel using amount on the premise of it ensure that the stress demand of crossbeam.
Description
Technical field
The present invention relates to automotive engineerings, and in particular to a kind of fore sub frame and automobile.
Background technology
Fore sub frame is the load bearing component of automobile front axle, the top connection vehicle body of fore sub frame and the load of vehicle front axle
Lotus, the bottom of fore sub frame and suspension, wheel and stationary deflector etc. are connected, for by these component sets into a sub-unit
To be connected with vehicle body.
Fig. 1 is the structure diagram of fore sub frame in the prior art, is set relatively as shown in Figure 1, fore sub frame includes two
The crossbeam 12 for two trailing arms 11 of trailing arm 11 and connection put, fore sub frame are typically provided with two or more crossbeams 12,
The cross-section straight beam that each crossbeam 12 is usually selected.
In the prior art, crossbeam generally selects prismatic straight beam, in order to ensure the mechanical property of crossbeam 12, equal cross section
The requirement of straight beam is：When crossbeam 12 is subject to maximum design stress, the most weakness of crossbeam 12 is also unlikely to damage.In reality
In, when being subject to design maximum stress, each several part stress on crossbeam 12 and the moment of flexure that is subject to is different, i.e., crossbeam 12 is each
The part structural strength required when tackling maximum stress is actually different, and the intensity on cross-section straight beam everywhere is basic
Identical, the intensity of partial portion is much larger than the intensity being actually needed on such crossbeam 12, while its rolled steel dosage is also significantly higher than
The rolled steel dosage really needed, this aspect add the rolled steel dosage of crossbeam 12, on the other hand also result in the weight of vehicle
It aggravates.
The content of the invention
It is excessive to solve steel used in prior art middle cross beam the object of the present invention is to provide a kind of fore sub frame and automobile
The technical issues of.
To achieve these goals, the present invention provides following technical solution：
A kind of fore sub frame, including two trailing arms being oppositely arranged and the crossbeam for connecting two trailing arms, the horizontal stroke
Beam includes being located at both ends be connected with the trailing arm first, positioned at the 3rd of middle part and is connected described first and the
Second of three is sequentially reduced from described first to the 3rd section factor on the crossbeam, also, the described 3rd
Portion reduces amplitude compared with the section factor of described second and is more than described second compared with the section factor of described first
Reduction amplitude.
Above-mentioned fore sub frame, described second is groove.
Above-mentioned fore sub frame is provided with reinforcing rib in the groove.
Above-mentioned fore sub frame, on the front-rear direction of automobile, the top surface of described 3rd include connected horizontal part and
Rake.
Above-mentioned fore sub frame, the crossbeam include inverted U-shaped plate and the tablet for being arranged at the inverted U-shaped plate openend.
Above-mentioned fore sub frame, is provided with lower swing arm mounting bracket on the trailing arm, in the lower swing arm mounting bracket
The heart is located at the outside of the fore sub frame.
The trailing arm includes connected straight-arm and reinforced support, and described first is connected with the reinforced support.
A kind of automobile, including fore sub frame, the above-mentioned fore sub frame of the fore sub frame.
In the above-mentioned technical solutions, fore sub frame provided by the invention, crossbeam be subject to the bending from both ends trailing arm should
During power, according to the mechanics of materials, the crossbeam both ends position nearer from trailing arm is subject to larger Moment, and center section by
The moment of flexure arrived is then smaller, preferable to adapt to since the section factor of crossbeam provided by the invention is sequentially reduced from both ends to the middle
The stress variation that crossbeam is born.In this way, prismatic straight beam in compared with prior art, the steel material used in crossbeam middle part
Just less than the steel material used in both ends, this just saves steel using amount on the premise of it ensure that the stress demand of crossbeam.
Since above-mentioned fore sub frame has above-mentioned technique effect, the automobile comprising the fore sub frame should also have corresponding skill
Art effect.
Description of the drawings
It in order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one described in the present invention
A little embodiments for those of ordinary skill in the art, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of fore sub frame in the prior art；
Fig. 2 is the structure diagram of fore sub frame provided in an embodiment of the present invention；
Fig. 3 is the bottom view of fore sub frame provided in an embodiment of the present invention；
Fig. 4 is the sectional view of A-A in Fig. 3；
Fig. 5 is the sectional view of B-B in Fig. 3；
Fig. 6 is the sectional view of C-C in Fig. 3；
Fig. 7 is the sectional view of D-D in Fig. 3；
Fig. 8 is the sectional view of E-E in Fig. 3.
Reference sign：
The prior art：
11st, trailing arm；12nd, crossbeam.
The present invention：
21st, trailing arm；211st, straight-arm；212nd, reinforced support；213rd, connecting tube；214th, reinforcing plate；22nd, crossbeam；221st, first
Portion；222nd, second；223rd, the 3rd；224th, reinforcing rib；225th, inverted U-shaped plate；226th, tablet；23rd, lower swing arm mounting bracket.
Specific embodiment
In order to which those skilled in the art is made to more fully understand technical scheme, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
As illustrated in figs. 2 through 8, a kind of fore sub frame provided in an embodiment of the present invention, including two trailing arms 21 being oppositely arranged with
And the crossbeam 22 of two trailing arms 21 of connection, crossbeam 22 include being located at both ends be connected with trailing arm 21 first 221, positioned at middle part
3rd 223 and second 222, first 221, second 222, the 3rd of connection first 221 and the 3rd 223
223 section factor is sequentially reduced.
It is one of geometry parameter of engineering mechanics specifically, section factor is also known as section modulus, in the present embodiment, crossbeam
22 section factors that there is maximum for be connected with trailing arm 21 first 221, on crossbeam 22 it is separate be connected with trailing arm 21 the
There is minimum section factor three 223, the rest part section factor from first 221 to the 3rd 223 is sequentially reduced.Such as
This, in crossbeam 22 when being subject to the bending stress of the trailing arm 21 from both ends, according to the engineering forces Xue Zhi of moment of flexure and bending stress
Know and understand, 22 both ends of crossbeam are subject to larger Moment compared with near-end position from trailing arm 21, and the moment of flexure that center section is subject to then compared with
It is small, since the section factor of crossbeam 22 of the present invention is sequentially reduced from both ends to the middle, it is preferable adapted to that crossbeam 22 bears should
Power changes.Prismatic straight beam in compared with prior art, 22 center section of the present embodiment middle cross beam the 3rd 223 is compared with both sides
First 221 materials it is less, this just saves steel using amount on the premise of it ensure that the stress demand of crossbeam 22.
Section factor, the relation of moment of flexure and bending stress and its calculating are all the prior art of the mechanics of materials, the present embodiment
Above-mentioned parameter is not calculated specifically, same treatment is made in the part for being related to these calculating hereinafter.
In the present embodiment, further, the 3rd 223 reduces amplitude compared with the section factor of second 222 and is more than the
Reduce amplitude compared with the section factor of first 221 for two 222.According to Such analysis, in the ideal case, on crossbeam 22 from
First 221 of both ends is to section factor 3rd 223 intermediate, and the rate that amplitude declines should be identical, in this way, in crossbeam 22
When being subject to maximum default stress, each several part of crossbeam 22 is subject to maximal bending moment simultaneously, and the intensity of 22 each several part of crossbeam should be able to be proper
The moment of flexure stress is born well.In the present embodiment, it is more than other regions since the section factor in the 3rd 223 regions reduces amplitude
Section factor reduces amplitude, and so when vehicle is subject to super default large impact power (as collided), the 3rd 223 of crossbeam 22 will be pre-
It first deforms, has so on the one hand just been pre-positioned the position of vehicle deformation, this design safety measure can be based on；On the other hand more
Further, it can be designed in the region of crossbeam 22 and reply structure, be such as designed as the part of crossbeam 22 flexible
Arcuate structure etc. makes it have in the deformation slightly measured and automatically replies function, compared with prior art the permanent deformation of middle straight beam
The design has significant advantage.
In the present embodiment, it is preferred that second 222 is groove.Reinforcing rib 224 is provided in groove.It is set on second 222
Reinforcement structure is put, further enhances the field strength, prevents the region from deforming.
In the present embodiment, as shown in Figure 6, it is preferred that on the front-rear direction of automobile, the top surface of the 3rd 223 includes phase
Horizontal part and rake even.On the premise of second 222 and the 3rd 223 whole about straight-arm, an inclination is set
Portion reduces the section factor of the 3rd 223.
In the present embodiment, as shown in Figure 5, it is preferred that crossbeam 22 includes inverted U-shaped plate 225 and is arranged at inverted U-shaped plate 225 and opens
The tablet 226 at mouth end.Tablet 226 refer on the whole be smooth shape plate, allow its surface have small size bending part and
Gauffer, in the openend welding plate 226 of inverted U-shaped plate 225 to strengthen the structural strength of inverted U-shaped plate 225.
In the present embodiment, further, lower swing arm mounting bracket 23 is provided on trailing arm 21, lower swing arm mounting bracket 23
Center is located at the outside of fore sub frame.Vehicle can cause the resonance of section components in the process of moving, lower swing arm in the present embodiment
The arrangement form of mounting bracket 23 by experimental verification, can effectively reduce the 40km/h ridden in left or right direction for even eliminating vehicle
It resonates on spring during speed.
In the present embodiment, further, trailing arm 21 includes connected straight-arm 211 and reinforced support 212, first 221 with
Reinforced support 212 is connected.By reinforced support 212 strengthen trailing arm 21 on be used for 22 first 221 positions being connected of crossbeam,
As shown in fig. 7, trailing arm 21 includes straight-arm 211 and reinforced support 212, the section factor of reinforced support 212 is more than straight-arm 211, adds
One end of strong stent 212 accommodates straight-arm 211, and passes through a connecting tube 213 and welded with straight-arm 211, reinforced support 212 it is another
End sets a reinforcing plate 214, is connected again by a connecting tube 213 with reinforcing plate 214, so greatly adds trailing arm
21 with the bonding strength of crossbeam 22.Generally, in order to ensure structural strength, fore sub frame needs the crossbeam 22 of two or more,
In the present embodiment, by the optimization of 22 section factor of crossbeam and trailing arm 21 and the increase of 22 junction intensity of crossbeam, can only it set
Put a crossbeam 22.
This implementation also provides a kind of automobile, uses above-mentioned fore sub frame.
Since above-mentioned fore sub frame has above-mentioned technique effect, the automobile comprising the fore sub frame should also have corresponding skill
Art effect.
Above some exemplary embodiments that the present invention is only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (4)
1. a kind of fore sub frame, special including two trailing arms being oppositely arranged and a crossbeam for connecting two trailing arms
Sign is, the crossbeam includes being located at first that both ends are connected with the trailing arm, positioned at the 3rd of middle part and is connected institute
State first and described 3rd second subtracts from described first to the 3rd section factor successively on the crossbeam
It is small, also, described 3rd reduces amplitude compared with the section factor of described second and is more than described second compared with described
The section factor of first reduces amplitude；Also, described second is groove, and reinforcing rib, the horizontal stroke are provided in the groove
Beam includes inverted U-shaped plate and the tablet for being arranged at the inverted U-shaped plate openend；
The position of described 3rd is provided with reply structure；
The trailing arm includes connected straight-arm and reinforced support, and described first is connected with the reinforced support；Reinforced support
Section factor be more than straight-arm, one end of reinforced support accommodates straight-arm, and passes through a connecting tube and welded with straight-arm, reinforced support
The other end set a reinforcing plate, be connected by a connecting tube with reinforcing plate.
2. fore sub frame according to claim 1, which is characterized in that on the front-rear direction of automobile, described 3rd
Top surface includes connected horizontal part and rake.
3. fore sub frame according to claim 1, which is characterized in that lower swing arm mounting bracket is provided on the trailing arm,
The center of the lower swing arm mounting bracket is located at the outside of the fore sub frame.
4. a kind of automobile, including fore sub frame, which is characterized in that the fore sub frame is claim 1-3 any one of them
Fore sub frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052109.4A CN104590378B (en) | 2015-01-30 | 2015-01-30 | Fore sub frame and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052109.4A CN104590378B (en) | 2015-01-30 | 2015-01-30 | Fore sub frame and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104590378A CN104590378A (en) | 2015-05-06 |
| CN104590378B true CN104590378B (en) | 2018-06-05 |
Family
ID=53116531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510052109.4A Expired - Fee Related CN104590378B (en) | 2015-01-30 | 2015-01-30 | Fore sub frame and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104590378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843923A (en) * | 2019-10-22 | 2020-02-28 | 安徽万安汽车零部件有限公司 | Six sub vehicle frames before installation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013053469A1 (en) * | 2011-10-14 | 2013-04-18 | Audi Ag | Subframe for motor vehicles |
| KR101295089B1 (en) * | 2011-10-20 | 2013-08-09 | 기아자동차주식회사 | Assembly structure of mout and subframe |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63106121A (en) * | 1986-10-23 | 1988-05-11 | Nissan Motor Co Ltd | Transverse link attaching structure for front suspension |
| JP2721312B2 (en) * | 1994-09-29 | 1998-03-04 | 本田技研工業株式会社 | Subframe structure |
| US7584815B2 (en) * | 2004-03-31 | 2009-09-08 | Honda Motor Co, Ltd. | Subframe for vehicle, and bush installation structure |
| JP4550673B2 (en) * | 2005-06-17 | 2010-09-22 | 本田技研工業株式会社 | Vehicle subframe |
| DE102012009567A1 (en) * | 2012-05-10 | 2013-11-14 | Audi Ag | Achsträgeranordnung on a vehicle, especially on a motor vehicle |
| CN204399285U (en) * | 2015-01-30 | 2015-06-17 | 安徽江淮汽车股份有限公司 | Fore sub frame and automobile |
-
2015
- 2015-01-30 CN CN201510052109.4A patent/CN104590378B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013053469A1 (en) * | 2011-10-14 | 2013-04-18 | Audi Ag | Subframe for motor vehicles |
| KR101295089B1 (en) * | 2011-10-20 | 2013-08-09 | 기아자동차주식회사 | Assembly structure of mout and subframe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104590378A (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8985681B2 (en) | Vehicle body floor structure | |
| CN104786773B (en) | vehicle axle | |
| CN201566702U (en) | small car frame | |
| CN105082908B (en) | Pull hanging device construction | |
| JP6573048B2 (en) | Front axle beam and manufacturing method thereof | |
| CN204472900U (en) | A kind of body frame structure for automotive of pure electric automobile | |
| CN106827995B (en) | Frame cross beam assembly formed by V-shaped thrust rod brackets | |
| CN104590378B (en) | Fore sub frame and automobile | |
| CN207191168U (en) | A kind of automobile rear longitudinal girder assembly structure | |
| US11027586B2 (en) | Vehicle suspension member | |
| CN203651573U (en) | Structure of auxiliary vehicle frame for bottom surface of self-unloading vehicle | |
| CN103538628B (en) | A kind of body frame structure for automotive and there is the automobile of this body frame structure for automotive | |
| CN204399285U (en) | Fore sub frame and automobile | |
| JP2003534961A (en) | Rear axle with notched cross beams | |
| CN106476900B (en) | A kind of rear portion assembly and the automobile including the rear portion assembly | |
| CN205345044U (en) | High trafficability characteristic cross country vehicle double -wishbone independent suspension mounting structure | |
| CN210653310U (en) | Auxiliary frame front beam rod support structure and automobile | |
| CN218986759U (en) | Automobile high-strength steel plate precision components | |
| CN206598880U (en) | A kind of reinforced underlying ingot beam assembly | |
| JP6216836B2 (en) | Wheel suspension with virtual steering axis | |
| US9221497B2 (en) | Vehicle front structure | |
| CN204432778U (en) | The two longeron vehicle frame of a kind of mining dump truck with electric wheels | |
| US12187340B2 (en) | Support beam | |
| CN204688211U (en) | A kind of automobile front longitudinal beam middle section reinforcing structure | |
| CN217835277U (en) | Control arm on many connecting rods |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |