CN107415611B - Rear cantilever beam - Google Patents
Rear cantilever beam Download PDFInfo
- Publication number
- CN107415611B CN107415611B CN201610351311.1A CN201610351311A CN107415611B CN 107415611 B CN107415611 B CN 107415611B CN 201610351311 A CN201610351311 A CN 201610351311A CN 107415611 B CN107415611 B CN 107415611B
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- CN
- China
- Prior art keywords
- swing arm
- arm mounting
- reinforcing mechanism
- mounting bracket
- cross beam
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
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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
- B62D21/06—Understructures, i.e. chassis frame on which a vehicle body may be mounted of X-shaped or fork-shaped construction, i.e. having members which form an X or fork as the frame is seen in plan view
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a rear cantilever arm beam which comprises a beam body, a first reinforcing mechanism, a second reinforcing mechanism, two first swing arm mounting brackets and two second swing arm mounting brackets, wherein two ends of the beam body are Y-shaped fork openings, two ends of the beam body are respectively connected with two longitudinal beams, the first reinforcing mechanism and the second reinforcing mechanism are respectively arranged at the connection positions of the beam body and the two longitudinal beams, the first reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, the second reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, and the two second swing arm mounting brackets are arranged on the inner sides of the two first swing arm mounting brackets. Therefore, the two ends of the cross beam are Y-shaped fork openings, when the cross beam is stressed, no matter which side is stressed, the stressed force can be diffused from the middle part to the end part, and the stressed force can be well dispersed in the transmission process due to the Y-shaped fork openings at the end part, so that the overall rigidity of the cross beam is improved, and the service life is prolonged.
Description
Technical Field
The invention relates to the technical field of vehicle body structures, in particular to a rear suspension arm cross beam.
Background
At present, the rear suspension arm beam mounting structure mainly comprises a beam, a longitudinal beam, a rear suspension arm mounting bracket and a related stiffening beam assembly, and the effects of damping and supporting a vehicle body are realized by matching the rigidity of the rear suspension arm upper bushing. The rear cantilever beam mounting structure can directly influence the operability and the comfort of the automobile.
The existing rear suspension arm mounting structure mainly has the problems that the NVH performance of the whole vehicle is affected by uneven stress and rigidity distribution of parts and the like: the overlapping area of the two suspension swing arm mounting brackets on one side, the cross beam and the longitudinal beam is small, so that the force transmission of the rear suspension swing arm to the longitudinal beam and the cross beam through the rear suspension swing arm bracket is not facilitated, and the NVH performance is poor; the two suspension swing arm mounting brackets on the single side are connected together through the cross beam, but the cross beam is cut off by the longitudinal beam, so that the integrity of the two suspension swing arm mounting brackets on the single side is poor; the two suspension swing arm installing supports on the single side are respectively overlapped with the longitudinal beam/cross beam, so that the force transmission directions are different, the rear suspension swing arm installing support is twisted when being stressed, the tail flicking can even occur under the tight turning working condition, and the riding comfort is poor.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and the invention aims to provide a rear cantilever beam which meets the installation requirement of a rear cantilever; the static rigidity of the mounting point of the rear suspension arm is improved, and the steering performance and the comfort of driving are improved; the overall dynamic stiffness of the rear cantilever swing arm at the position where the cross beam is arranged is improved, and the NVH performance is improved.
The invention discloses a rear cantilever arm beam which comprises a swing arm body, a beam, a first reinforcing mechanism, a second reinforcing mechanism, two first swing arm mounting brackets and two second swing arm mounting brackets, wherein two ends of the beam are Y-shaped fork openings, two ends of the beam are respectively connected with two longitudinal beams, the first reinforcing mechanism and the second reinforcing mechanism are respectively arranged at the connecting positions of the beam and the two longitudinal beams, the first reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, the second reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, the two second swing arm mounting brackets are arranged on the inner sides of the two first swing arm mounting brackets, and the two first swing arm mounting brackets and the two second swing arm mounting brackets are fixedly connected with the swing arm body.
The rear cantilever beam of the invention can also be:
the ratio of the height of the cross beam to the vertical distance between the cross beam and the first reinforcing mechanism or the second reinforcing mechanism is 8:7.
The ratio of the height of the longitudinal beam to the vertical distance between the longitudinal beam and the first reinforcing mechanism or the second reinforcing mechanism is 3:2.
The ratio of the X-direction length of the Y-shaped fork opening to the X-direction length of the middle position of the cross beam is 8:1.
The first swing arm mounting bracket is double-layer U-shaped.
The inner side of the second swing arm installing support is provided with an inner reinforcing plate, and the outer side of the second swing arm installing support is provided with an outer reinforcing plate.
And a reinforced outer plate is arranged on the outer wall of the second swing arm mounting bracket.
The invention provides a rear cantilever arm cross beam which comprises a swing arm body, a cross beam, a first reinforcing mechanism, a second reinforcing mechanism, two first swing arm mounting brackets and two second swing arm mounting brackets, wherein two ends of the cross beam are Y-shaped fork openings, two ends of the cross beam are respectively connected with two longitudinal beams, the first reinforcing mechanism and the second reinforcing mechanism are respectively arranged at the connection positions of the cross beam and the two longitudinal beams, the first reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, the second reinforcing mechanism is provided with a first swing arm mounting bracket and a second swing arm mounting bracket, the two second swing arm mounting brackets are arranged on the inner sides of the two first swing arm mounting brackets, and the two first swing arm mounting brackets and the two second swing arm mounting brackets are fixedly connected with the swing arm body. Like this, the crossbeam both ends are Y shape fork mouth, and when swing arm body hung and established on the crossbeam, crossbeam atress because crossbeam both ends are Y shape fork mouth, and the fixed connection area of crossbeam and longeron increases, can guarantee the joint strength of crossbeam, in addition, no matter what one side atress is followed to the crossbeam, the force that it receives all can be from the middle part to tip diffusion, because tip Y shape fork mouth, the force that receives can obtain good dispersion in the transmission process, for the advantage of prior art is: the overall rigidity of the cross beam is improved, the static rigidity of the mounting position of the rear suspension arm is improved, the steering performance and the comfort of driving are improved, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of a rear swing arm cross member according to an embodiment of the present invention;
FIG. 2 is a schematic cross beam construction of a rear swing arm cross beam according to an embodiment of the present invention;
FIG. 3 is a cross-sectional schematic view of a rear swing arm cross-beam in accordance with an embodiment of the invention;
FIG. 4 is a schematic view of a first swing arm mounting bracket for a rear swing arm cross member according to an embodiment of the present invention;
fig. 5 is a schematic view of a second swing arm mounting bracket for a rear swing arm cross member according to an embodiment of the present invention.
In the figure: 1: a swing arm body; 2: a longitudinal beam; 3: a cross beam; 4: a first swing arm mounting bracket; 5: a second swing arm mounting bracket; 6: a first reinforcing mechanism; 7: a second reinforcing mechanism; 8: reinforcing the outer plate; 9: an inner reinforcing plate; 10: and an outer reinforcing plate.
Detailed Description
A specific embodiment of a rear swing arm cross member in accordance with the present invention will now be described in further detail with reference to the accompanying drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
As shown in fig. 1-5, the rear cantilever beam of the invention comprises a beam body 1, a beam 3, a first reinforcing mechanism 6, a second reinforcing mechanism 7, two first swing arm mounting brackets 4 and two second swing arm mounting brackets 5, wherein two ends of the beam 3 are Y-shaped fork openings, two ends of the beam 3 are respectively connected with two longitudinal beams 2, the first reinforcing mechanism 6 and the second reinforcing mechanism 7 are respectively arranged at the connection positions of the beam 3 and the two longitudinal beams 2, the first reinforcing mechanism 6 is provided with a first swing arm mounting bracket 4 and a second swing arm mounting bracket 5, the second reinforcing mechanism 7 is provided with a first swing arm mounting bracket 4 and a second swing arm mounting bracket 5, the two second swing arm mounting brackets 5 are arranged on the inner sides of the two first swing arm mounting brackets 4, and the two first swing arm mounting brackets 4 and the two second swing arm mounting brackets 5 are fixedly connected with the beam body 1. Like this, crossbeam 3 both ends are Y shape fork, and swing arm body 1 hangs when establishing on crossbeam 3, crossbeam 3 atress, because crossbeam 3 both ends are Y shape fork, and crossbeam 3 and longeron 2's fixed connection area increases, can guarantee crossbeam 3's joint strength, in addition, no matter crossbeam 3 atress from which side, the force that it receives all can be from the middle part to tip diffusion, because tip Y shape fork, the force that receives can obtain good dispersion in the transmission process, for prior art's advantage is: the overall rigidity of the cross beam 3 is improved, the static rigidity of the mounting position of the rear suspension arm is improved, the steering performance and the comfort of driving are improved, and the service life is prolonged.
As shown in fig. 1 to 5, a rear cantilever beam according to the present invention may further be based on the technical solution described above: the ratio of the height of the cross beam 3 to the vertical distance of the cross beam 3 from the first reinforcement means 6 or the second reinforcement means 7 is 8:7. Thus, the cross beam 3 and the first reinforcing mechanism 6 and the second reinforcing mechanism 7 form a double-layer structure, the height ratio of the formed double-layer structure is 8:7, the local strength of the cross beam 3 is obviously improved due to the double-layer structure, when the first swing arm mounting bracket 4 and the second swing arm mounting bracket 5 are mounted, the cross beam 3 can bear the external force well, the ratio of the height of the cross beam 3 to the height of the cross beam 3 from the first reinforcing mechanism 6 or the second reinforcing mechanism 7 is 8:7, and the Z-direction strength and the rigidity of the mounting position of the second swing arm mounting bracket 5 are improved.
The rear cantilever beam of the invention, as shown in fig. 1 to 5, may further be based on the technical scheme described above: the ratio of the height of the longitudinal beam 2 to the vertical distance of the longitudinal beam 2 from the first reinforcement means 6 or the second reinforcement means 7 is 3:2. In this way, the height difference between the first reinforcing mechanism 6 and the second reinforcing mechanism 7 and the longitudinal beam 2 can be ensured, when bearing force, the first reinforcing mechanism 6 and the second reinforcing mechanism 7 can share part of the force born by the longitudinal beam 2, the load pressure of the longitudinal beam 2 is lightened, and the Z-direction strength and the height of the first swing arm mounting bracket 44 are improved by determining the ratio of the height of the longitudinal beam 2 to the height of the longitudinal beam 2 from the first reinforcing mechanism 6 or the second reinforcing mechanism 7 to be 3:2.
The rear cantilever beam of the invention, as shown in fig. 1 to 5, may further be based on the technical scheme described above: the ratio of the X-direction length of the wide-mouth position of the cross beam 3 to the X-direction length of the middle position of the cross beam 3 is 8:1. Therefore, the two ends of the cross beam 3 are Y-shaped fork openings, when the cross beam 3 is stressed, no matter which side is stressed, the stressed force can be diffused from the middle part to the end part, and the stressed force can be well dispersed in the transmission process due to the Y-shaped fork openings at the end part, so that the overall dynamic stiffness of the cross beam 3 is improved to 7400N/mm from the original 4000N/mm, the overall stiffness of the cross beam 3 is improved, and the service life is prolonged.
The rear cantilever beam of the invention, as shown in fig. 1 to 5, may further be based on the technical scheme described above: the first swing arm mounting bracket 4 is double-layer U-shaped. Thus, since the first swing arm mounting bracket 4 is double-layer U-shaped, the whole thickness of the first swing arm mounting bracket 4 is increased by adding a layer of reinforcing plate on the outer side of the first swing arm mounting bracket 4, so that the static rigidity of the first swing arm mounting bracket 4 is increased, the first swing arm mounting bracket 44 is double-layer U-shaped, and the static rigidity of the first swing arm mounting bracket 4 is changed from original X Original source ＝5000Nm/deg、Y Original source ＝4000Nm/deg、Z Original source =7000 Nm/deg, up to X Original source ＝11000Nm/deg、Y Original source ＝25000Nm/deg、Z Original source =20000 Nm/deg, the structural strength is guaranteed, and the lifetime is extended.
The rear cantilever beam of the invention, as shown in fig. 1 to 5, may further be based on the technical scheme described above: the inner side of the second swing arm mounting bracket 5 is provided with an inner reinforcing plate 9, and the outer side of the second swing arm mounting bracket 5 is provided with an outer reinforcing plate 10. Like this, second swing arm installing support 5 inboard is equipped with interior reinforcing plate 9, second swing arm installing support 5 outside is equipped with outer reinforcing plate 10, and second swing arm installing support 5 is whole to be three-layer, and structural strength obtains the maximize promotion, and the quiet rigidity of second swing arm installing support 5 can be by original X Original source ＝5000Nm/deg、Y Original source ＝3000Nm/deg、Z Original source =5000 Nm/deg, up to X Original source ＝15000Nm/deg、Y Original source ＝19000Nm/deg、Z Original source =20000 Nm/deg, the structural strength is guaranteed, and the lifetime is extended. The more preferable technical scheme is as follows: the outer wall of the second swing arm mounting bracket 5 is provided with a reinforced outer plate 8. In this way, the outer wall of the second swing arm mounting bracket 5 is additionally provided with the reinforcing outer plate 8, so that the side thickness of the second swing arm mounting bracket 5 is increased, and the second swing is further increasedThe overall strength and rigidity of the arm mounting bracket 5 improves structural stability.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (4)
1. A rear cantilever beam, characterized in that: the two-side-view type swing arm comprises a swing arm body, a cross beam, a first reinforcing mechanism, a second reinforcing mechanism, two first swing arm mounting brackets and two second swing arm mounting brackets, wherein Y-shaped fork openings are formed in two ends of the cross beam, two ends of the cross beam are respectively connected with two longitudinal beams, the first reinforcing mechanism and the second reinforcing mechanism are respectively arranged at the connecting positions of the cross beam and the two longitudinal beams, a first swing arm mounting bracket and a second swing arm mounting bracket are arranged on the first reinforcing mechanism, a first swing arm mounting bracket and a second swing arm mounting bracket are arranged on the second reinforcing mechanism, the two second swing arm mounting brackets are arranged on the inner sides of the two first swing arm mounting brackets, and the two first swing arm mounting brackets and the two second swing arm mounting brackets are fixedly connected with the swing arm body; an inner reinforcing plate is arranged on the inner side of the second swing arm mounting bracket, and an outer reinforcing plate is arranged on the outer side of the second swing arm mounting bracket; a reinforced outer plate is arranged on the outer wall of the second swing arm mounting bracket; the first swing arm mounting bracket is double-layer U-shaped.
2. A rear swing arm cross member according to claim 1, wherein: the ratio of the height of the cross beam to the vertical distance between the cross beam and the first reinforcing mechanism or the second reinforcing mechanism is 8:7.
3. A rear swing arm cross member according to claim 1, wherein: the ratio of the height of the longitudinal beam to the vertical distance between the longitudinal beam and the first reinforcing mechanism or the second reinforcing mechanism is 3:2.
4. A rear swing arm cross member according to claim 1, wherein: the ratio of the X-direction length of the Y-shaped fork opening to the X-direction length of the middle position of the cross beam is 8:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351311.1A CN107415611B (en) | 2016-05-24 | 2016-05-24 | Rear cantilever beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351311.1A CN107415611B (en) | 2016-05-24 | 2016-05-24 | Rear cantilever beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107415611A CN107415611A (en) | 2017-12-01 |
| CN107415611B true CN107415611B (en) | 2023-07-04 |
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ID=60422665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351311.1A Active CN107415611B (en) | 2016-05-24 | 2016-05-24 | Rear cantilever beam |
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| Country | Link |
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| CN (1) | CN107415611B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006192932A (en) * | 2005-01-11 | 2006-07-27 | Mazda Motor Corp | Rear suspension device of automobile |
| JP2012086642A (en) * | 2010-10-18 | 2012-05-10 | Mitsubishi Motors Corp | Rear suspension device |
| CN204020990U (en) * | 2014-09-01 | 2014-12-17 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Full frame subframe swing arm mounting structure |
| CN204110146U (en) * | 2014-07-14 | 2015-01-21 | 宁波跃进汽车前桥有限公司 | A kind of automobile front subframe |
| CN104325853A (en) * | 2014-11-28 | 2015-02-04 | 安徽江淮汽车股份有限公司 | Mounting piece and mounting assembly of rear swing arm, and automobile |
| CN204355147U (en) * | 2014-12-26 | 2015-05-27 | 长城汽车股份有限公司 | The auxiliary frame structure of vehicle and vehicle |
| CN104960577A (en) * | 2015-06-25 | 2015-10-07 | 滁州达世汽车配件有限公司 | Sub-frame assembly of vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040035623A1 (en) * | 2002-02-22 | 2004-02-26 | Berthold Fecteau | Frame configuration for a three-wheel vehicle |
-
2016
- 2016-05-24 CN CN201610351311.1A patent/CN107415611B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006192932A (en) * | 2005-01-11 | 2006-07-27 | Mazda Motor Corp | Rear suspension device of automobile |
| JP2012086642A (en) * | 2010-10-18 | 2012-05-10 | Mitsubishi Motors Corp | Rear suspension device |
| CN204110146U (en) * | 2014-07-14 | 2015-01-21 | 宁波跃进汽车前桥有限公司 | A kind of automobile front subframe |
| CN204020990U (en) * | 2014-09-01 | 2014-12-17 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Full frame subframe swing arm mounting structure |
| CN104325853A (en) * | 2014-11-28 | 2015-02-04 | 安徽江淮汽车股份有限公司 | Mounting piece and mounting assembly of rear swing arm, and automobile |
| CN204355147U (en) * | 2014-12-26 | 2015-05-27 | 长城汽车股份有限公司 | The auxiliary frame structure of vehicle and vehicle |
| CN104960577A (en) * | 2015-06-25 | 2015-10-07 | 滁州达世汽车配件有限公司 | Sub-frame assembly of vehicle |
Non-Patent Citations (1)
| Title |
|---|
| NHQ6470EG2Y型汽车车架扭转刚度的测试研究;叶青;李宇彤;赵黎;李锋;;汽车技术(第07期);24-27 * |
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| CN107415611A (en) | 2017-12-01 |
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