CN107351917B - Front auxiliary frame structure - Google Patents
Front auxiliary frame structure Download PDFInfo
- Publication number
- CN107351917B CN107351917B CN201710599523.6A CN201710599523A CN107351917B CN 107351917 B CN107351917 B CN 107351917B CN 201710599523 A CN201710599523 A CN 201710599523A CN 107351917 B CN107351917 B CN 107351917B
- Authority
- CN
- China
- Prior art keywords
- auxiliary frame
- cross beam
- damping cross
- front auxiliary
- frame body
- 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.)
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Classifications
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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
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
Abstract
The invention discloses a front auxiliary frame structure, wherein a rigid damping cross beam is arranged in front of a front auxiliary frame body, two control arms are directly connected with the rear parts of two sides of the front auxiliary frame body through rear bushings, the two control arms are connected with two ends of the damping cross beam through the front bushings, and the rear parts of the two ends of the damping cross beam are fixedly connected with the front end part of the front auxiliary frame. After vibration generated by friction between the tires and the ground is transmitted to the control arms, the reverse vibration of the control arms at two sides can be absorbed and counteracted by the damping cross beam, so that vibration and noise transmitted to the front frame and the cab are effectively reduced, and the comfort of the automobile is improved.
Description
Technical Field
The invention relates to an automobile chassis structure, in particular to a front auxiliary frame structure.
Background
The front auxiliary frame is an important component of a vehicle chassis system and is a framework for connecting front and rear axles, and besides being used for supporting and connecting a plurality of parts of an automobile, the front auxiliary frame can also block vibration and noise, reduce the vibration and noise from directly entering a carriage, and improve the comfort of the automobile.
In the conventional front subframe structure, as shown in fig. 1, two control arms 1 are respectively arranged at two sides of a front subframe 4, each control arm 1 is provided with a front bushing 2 and a rear bushing 3, and the front bushing 2 and the rear bushing 3 are connected with the front subframe 4. Vibration noise generated during running is transmitted to the vehicle body through the left and right tires, the control arm, the front bushing, the front auxiliary frame and the vehicle body. In order to avoid the influence of the front subframe on the automobile load, the dead weight of the front subframe is reduced as much as possible, the front middle of the front subframe is concave, protruding parts are formed on two sides of the front subframe in an outward protruding mode, and the front bushing of the control arm is connected to the protruding parts on two sides of the front subframe. The vibration transmitted by the bushing reaches the protruding part and then is transmitted to the vehicle body through the auxiliary frame, and the two protruding parts are independent of each other, so that the vibration at two sides of the auxiliary frame is transmitted to the protruding part, the vibration in different directions cannot be absorbed and counteracted, and the vibration and dryness reducing effect is not ideal.
Disclosure of Invention
The invention provides a front auxiliary frame structure with better vibration and noise reduction effects, so as to further improve the comfort of the interior space of an automobile, particularly a cab.
The invention discloses a front auxiliary frame structure, which comprises a front auxiliary frame body, two control arms respectively arranged at the left side and the right side of the front auxiliary frame, wherein the two control arms are respectively provided with a front bushing and a rear bushing, a rigid damping cross beam is arranged in front of the front auxiliary frame body, the two control arms are directly connected with the rear parts of the two sides of the front auxiliary frame body through the rear bushing, are connected with the two ends of the damping cross beam through the front bushing, and the rear parts of the two ends of the damping cross beam are fixedly connected with the front end part of the front auxiliary frame.
According to the front auxiliary frame structure of the automobile, the front-rear distance of the front auxiliary frame body is shortened, the front bushing at the front end of the control arm is not connected with the front auxiliary frame body any more, but is connected to the rigid damping cross beam in front of the front auxiliary frame, the front bushings of the control arms at two sides are directly connected through the rigid damping cross beam, vibration transmitted by the control arms at two sides is directly transmitted to the damping cross beam, vibration in opposite directions at the left side and the right side can be directly absorbed and counteracted, vibration transmitted to the front auxiliary frame is effectively reduced, vibration transmitted to a cab of the automobile body and noise formed by the vibration are reduced, comfort of an inner space of the automobile is improved, and passengers and drivers can obtain better seat experience. Meanwhile, the front and rear distances of the front auxiliary frame body are shortened while the damping cross beam is increased, so that the overall weight of the front auxiliary frame is not increased even if the damping cross beam component is increased, and the overall weight of the front auxiliary frame is even reduced when the damping cross beam is arranged to be of a middle concave structure at the rear side, so that the structure is lighter and the oil consumption is lower.
Drawings
Fig. 1 is a schematic view of a front subframe structure of a conventional design.
Fig. 2 is a schematic view of the structure of the front subframe according to the present invention.
FIG. 3 is a partial cross-sectional view of the connection of the control arm to the damping beam.
Detailed Description
As shown in fig. 2, in a front subframe structure of an automobile, the front end of a front subframe body 4 is retracted to shorten the front-rear distance, and a front bushing 2 of a control arm is entirely positioned in front of the front subframe body 4. The front end of the front auxiliary frame body 4 is provided with a rigid damping cross beam 5, and the lower parts of the left end and the right end of the damping cross beam 5 are fixedly connected to the left end and the right end of the front side of the front auxiliary frame in a welding mode. The damping cross beam rigidly connects two sides, the control arms on the two sides transmit the vibration to the damping cross beam, and the opposite directions can be mutually absorbed and counteracted, so that the vibration transmitted to the vehicle body is reduced, and the comfort is improved.
The damping cross beam is preferably in a groove shape in section, so that the damping cross beam has better strength and rigidity, and the damping cross beam is more beneficial to absorption and cancellation of vibration.
The damping cross beam is preferably flush at the front side and concave at the middle part of the rear side, and a gap is formed between the concave damping cross beam and the front auxiliary frame main body, so that the weight of the whole front auxiliary frame is further reduced while the vibration absorption at two sides is counteracted, and the adverse effect caused by dead weight is reduced. The concave damping cross beam structure is arranged and the front-back distance of the front auxiliary frame body is shortened, so that the overall weight of the front auxiliary frame body is not increased even if the damping cross beam part is increased, and the front auxiliary frame body is even lightened, so that the structure is lighter and the oil consumption is lower.
The damping cross beam and the front auxiliary frame body can be fixedly connected through bolts, as shown in fig. 3, a friction plate 6 made of friction materials is arranged at the joint of the damping cross beam and the front auxiliary frame body, and the friction coefficient of the friction plate is very high, so that the relative movement between the front auxiliary frame body and the damping cross beam can be prevented.
Claims (4)
1. The utility model provides a preceding sub vehicle frame structure, includes preceding sub vehicle frame body, sets up two control arms in preceding sub vehicle frame left and right sides respectively, and two control arms all are equipped with preceding bush and back bush, its characterized in that: the front of the front auxiliary frame body is provided with a rigid damping cross beam, the two control arms are directly connected with the rear parts of the two sides of the front auxiliary frame body through rear bushings, the two ends of the damping cross beam are connected through the front bushings, and the rear sides of the two ends of the damping cross beam are fixedly connected with the front end part of the front auxiliary frame.
2. A front subframe structure as claimed in claim 1, wherein: the section of the damping cross beam (5) is groove-shaped.
3. A front subframe structure as claimed in claim 1, wherein: the middle part of the rear side of the damping cross beam (5) is concave, and a gap is formed between the concave damping cross beam and the front auxiliary frame body.
4. A front subframe structure as claimed in claim 1, wherein: the damping cross beam is fixedly connected with the front auxiliary frame body through bolts, and a friction plate (6) made of friction materials is arranged at the joint of the damping cross beam and the front auxiliary frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599523.6A CN107351917B (en) | 2017-07-21 | 2017-07-21 | Front auxiliary frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599523.6A CN107351917B (en) | 2017-07-21 | 2017-07-21 | Front auxiliary frame structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107351917A CN107351917A (en) | 2017-11-17 |
| CN107351917B true CN107351917B (en) | 2023-08-18 |
Family
ID=60284873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710599523.6A Active CN107351917B (en) | 2017-07-21 | 2017-07-21 | Front auxiliary frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107351917B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013006518A (en) * | 2011-06-24 | 2013-01-10 | Mitsubishi Motors Corp | Vehicle body front structure |
| JP2013203242A (en) * | 2012-03-28 | 2013-10-07 | Mazda Motor Corp | Front sub-frame structure |
| CN203713973U (en) * | 2013-12-26 | 2014-07-16 | 芜湖中瑞汽车零部件有限公司 | Front auxiliary frame with anti-collision structure |
| CN104340272A (en) * | 2013-08-07 | 2015-02-11 | 一汽海马汽车有限公司 | Front subframe assembly, car and method for mounting front subframe assembly and front bumper |
| CN204222970U (en) * | 2014-10-15 | 2015-03-25 | 奇瑞汽车股份有限公司 | A kind of novel auxiliary frame |
| WO2017082125A1 (en) * | 2015-11-11 | 2017-05-18 | マツダ株式会社 | Front sub-frame structure |
| CN207191171U (en) * | 2017-07-21 | 2018-04-06 | 马瑞利汽车零部件（广州）有限公司 | A kind of structure of front auxiliary frame |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6462552B2 (en) * | 2015-10-26 | 2019-01-30 | 本田技研工業株式会社 | Body front structure |
| JP6227680B2 (en) * | 2016-01-07 | 2017-11-08 | 本田技研工業株式会社 | Body front structure |
-
2017
- 2017-07-21 CN CN201710599523.6A patent/CN107351917B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013006518A (en) * | 2011-06-24 | 2013-01-10 | Mitsubishi Motors Corp | Vehicle body front structure |
| JP2013203242A (en) * | 2012-03-28 | 2013-10-07 | Mazda Motor Corp | Front sub-frame structure |
| CN104340272A (en) * | 2013-08-07 | 2015-02-11 | 一汽海马汽车有限公司 | Front subframe assembly, car and method for mounting front subframe assembly and front bumper |
| CN203713973U (en) * | 2013-12-26 | 2014-07-16 | 芜湖中瑞汽车零部件有限公司 | Front auxiliary frame with anti-collision structure |
| CN204222970U (en) * | 2014-10-15 | 2015-03-25 | 奇瑞汽车股份有限公司 | A kind of novel auxiliary frame |
| WO2017082125A1 (en) * | 2015-11-11 | 2017-05-18 | マツダ株式会社 | Front sub-frame structure |
| CN207191171U (en) * | 2017-07-21 | 2018-04-06 | 马瑞利汽车零部件（广州）有限公司 | A kind of structure of front auxiliary frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107351917A (en) | 2017-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 402, Building A, No. 10 Nanjiang Third Road, Nansha District, Guangzhou City, Guangdong Province, 511462 Applicant after: Marelli automotive chassis system (Guangzhou) Co.,Ltd. Address before: Room 402, Building A, No. 10 Nanjiang Third Road, Nansha District, Guangzhou City, Guangdong Province, 511462 Applicant before: MAGNETI MARELLI AUTOMOTIVE COMPONENTS (GUANGZHOU) CO.,LTD. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 511462 factory building B, No. 9, Nanjiang Third Road, Nansha District, Guangzhou City, Guangdong Province Applicant after: Marelli automotive chassis system (Guangzhou) Co.,Ltd. Address before: Room 402, Building A, No. 10 Nanjiang Third Road, Nansha District, Guangzhou City, Guangdong Province, 511462 Applicant before: Marelli automotive chassis system (Guangzhou) Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |