CN201703433U - Structure of novel auxiliary frame - Google Patents
Structure of novel auxiliary frame Download PDFInfo
- Publication number
- CN201703433U CN201703433U CN2009202870598U CN200920287059U CN201703433U CN 201703433 U CN201703433 U CN 201703433U CN 2009202870598 U CN2009202870598 U CN 2009202870598U CN 200920287059 U CN200920287059 U CN 200920287059U CN 201703433 U CN201703433 U CN 201703433U
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- CN
- China
- Prior art keywords
- slot
- subframe structure
- front cross
- auxiliary frame
- cross rail
- 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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Abstract
The utility model discloses a structure of a novel auxiliary frame, which comprises a front transverse beam (1), a rear transverse beam (2) and two longitudinal beams that are mutually and fixedly mounted to form a closed framework, wherein a first slot is formed at a lateral end part of the front transverse beam (1), and the corresponding end part of the longitudinal beam positioned on the same side can be inserted into the first slot in a matching way. With the structure of the novel auxiliary frame, the bending rigidity and the torsional mode frequency of the auxiliary frame are improved, therefore the NVH performance of an automobile is effectively controlled and improved. The data obtained through actual measurement show that 15 Hz torsional mode frequency of the auxiliary frame can be increased by innovatively designing the cross section of the front transverse beam, and 13 Hz torsional mode frequency can be increased through the design of enhancing the rigidity of the rear transverse beam, and 28 Hz torsional mode frequency can be increased by adopting the two designs.
Description
[technical field]
The utility model relates to a kind of subframe structure, relates in particular to a kind of subframe structure that can improve its dynamic stiffness characteristic, belongs to automobile technical field.
[background technology]
Along with social development and scientific and technological progress, the modern automobile technical merit is also constantly promoting, can satisfy the growing needs of people better.In the modern automobile structure, especially on Pullman saloon and cross-country car, subframe is one of important composition parts wherein, and it has supported front and back vehicle bridge and suspension, can intercept the adverse effect of vibration and noise, reduces them and directly enters in the compartment.For the vehicle that subframe is not installed, the parts of suspension (for example, connecting rod, bumper, spring etc.) all will be directly connected on the auto body.Like this, vehicle in the process of moving and the vibration that produces between the ground, frictional noise will be directly passed to vehicle body by sprung parts, badly influences occupant's traveling comfort.This shows that subframe is for the traveling comfort, stability and even the safety performance that promote and guarantee to drive, and is significant really.
Yet, as shown in Figure 1, in existing subframe structure, the sectional area of its front cross rail 1 is less usually, and the structure design of after cross member 2 is also unreasonable, can cause the whole counter-bending ability of subframe relatively poor thus, the problem that the torsion mode frequency is lower, really exist the risk of NVH (Noise, Vibration and Harshness, noise, vibration and the traveling comfort) performance that influences automobile.Therefore, quite be necessary this problem is researched and solved.
[utility model content]
In view of this, the purpose of this utility model is to provide a kind of later-model subframe structure, its reasonable in design, safe and reliable and easy to maintenance can actv. solves the problem of the NVH performance that the whole counter-bending ability of the subframe that exists in the above-mentioned prior art is relatively poor, the torsion mode frequency is lower, influence automobile.
For realizing above-mentioned utility model purpose, the technical solution adopted in the utility model is as follows:
A kind of novel subframe structure, it comprises front cross rail, after cross member and two longerons that form closed frame by installing mutually, one side end of described front cross rail is provided with first slot, and described first slot can be gone into by suitable ground plug-in mounting in the corresponding end that is arranged in the described longeron of homonymy.
Preferably, the end side of described front cross rail is provided with second slot, and described second slot can be gone into by suitable ground plug-in mounting in the corresponding end that is arranged in the described longeron of homonymy.
Preferably, described first slot and described second slot all are opening and the U-shaped of laterally placing outwardly.
Preferably, the size of described first slot and second slot is identical, and it is symmetricly set on the described front cross rail.
Preferably, the cross sectional shape of described front cross rail is square.
Preferably, the inside of described after cross member is provided with support component.
Preferably, described support component is a brace panel, and it vertically is welded at up and down between the cover plate of described after cross member.
Preferably, the thickness of described brace panel is 2-4mm.
The beneficial effects of the utility model are: compared with prior art, originally novel subframe structure is by adopting multiple combination technique improved procedures such as the expansion of front cross rail cross section, change front cross rail and subframe longeron type of attachment, increase after cross member rigidity, under the prerequisite that does not take space outerpace, can significantly improve the bending stiffness and the torsion mode frequency thereof of subframe, control and improve the NVH performance of automobile effectively.According to field data show, can improve the torsion mode frequency 15Hz of subframe by novelty design front cross rail cross section, and can improve the torsion mode frequency 13Hz of subframe by the rigidity Design that increases after cross member, can promote torsion mode frequency 28Hz when adopting above two kinds of designs simultaneously.
[description of drawings]
Below with reference to drawings and Examples, the technical solution of the utility model is described in further detail.Wherein:
Fig. 1 is a subframe structural representation of the prior art;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the structural representation of a preferred embodiment of subframe structure of the present utility model;
Fig. 4 is the partial enlarged drawing at B place among Fig. 3; And
Fig. 5 is the structural representation of another preferred embodiment middle and rear cross beam of subframe structure of the present utility model.
[specific embodiment]
As shown in Figure 3, it is the structural representation of a preferred embodiment of subframe structure of the present utility model.In this embodiment, the subframe structure comprises front cross rail 1, after cross member 2, left longeron 3 and right vertical beam 4, and above-mentioned four unit architectures are become the framework of an integrally closed by left and right two longerons being fixedly installed to respectively on (for example, adopt welding manner) forward and backward crossbeam.
See also Fig. 1 and Fig. 2, wherein Fig. 1 is a subframe structural representation of the prior art, and Fig. 2 then is at the partial enlarged view that is labeled in A place among Fig. 1.By seeing in these accompanying drawings, the cross sectional shape of existing front cross rail 1 is rectangle, its area is designed usually and makes lessly, and the connection mode between the end 30 of its end 10 and longeron is also unreasonable, and is unfavorable for cushioning or eliminate the influence from exterior vibrations, impact etc.
Contrast with reference to figure 3 and Fig. 4, wherein Fig. 3 is the subframe structural representation that improves the present embodiment after designing again, and Fig. 4 is the partial enlarged view at B place among Fig. 3.In this embodiment, at first be that sectional area with front cross rail 1 has carried out increasing and handles, soon the minor face in the oblong cross section of front cross rail 1 prolongs design and makes the cross sectional shape of the front cross rail 1 after improving be square among Fig. 1, and can not produce interference problem thus.Secondly, also on the left end 10 of front cross rail 1, first slot is set, this first slot is opening and the U-shaped of laterally placing outwardly, and the corresponding end 30 that also correspondingly will be arranged in the left longeron 3 of this side simultaneously is arranged to and can be gone into this first slot by suitable ground plug-in mounting.Similarly, second slot (not shown) also is set on the end side of front cross rail 1, equally this second slot is set as opening and the U-shaped of laterally placing outwardly, and the corresponding end that will be arranged in the right vertical beam 4 of this side is arranged to and can be gone into this second slot by suitable ground plug-in mounting; Then, adopt any known systems means again and above-mentioned these each parts that plug-in mounting is good are installed and fixed firmly.
Generally speaking, adopt the layout of symmetry fully can optimized carrying or decomposition be applied to application force on the auto body, thereby help buffering most or eliminate alien influences such as vibration, impact, stability, ride comfort and the safety performance of raising automobile operation.Therefore, in another embodiment of the present utility model, can be further the first above-mentioned slot and second slot be sized to identical, and they be arranged on the end of front cross rail 1 both sides symmetrically.Certainly, because the actual conditions of concrete vehicle may vary, can not consider to adopt non-symmetrical mode more to help to realize the purpose of this utility model in some cases so do not repel yet.
In addition, because the inner hollow state that forms usually of existing after cross member, its actual rigidity is unsatisfactory, therefore can have influence on the counter-bending ability of subframe.To this, in another preferred embodiment of the present utility model, also carried out the structural development design at the after cross member parts in the subframe structure.As shown in Figure 5, it shows the after cross member structure after the improvement.Wherein, set up brace panel 20 in the inside of after cross member 2, brace panel 20 vertically is welded on the cover plate up and down of after cross member 2 to strengthen supporting role.Usually, the thickness of brace panel being arranged on 2 to 4 millimeters scopes gets final product.
In sum, subframe reasonable in design of the present utility model, simple in structure and be easy to realize, it does not take space outerpace, can significantly improve the torsion mode frequency, promote the bending stiffness of subframe, thereby can effectively improve the counter-bending ability of traditional subframe structure.After adopting this novel subframe structure, after its buffering, be delivered to auto body from exterior identical vibration and impact again, and vibrate, adverse influence such as impact and noise all can be reduced significantly, thereby finally can promote the traveling comfort and the handling of vehicle complete vehicle very significantly.
More than enumerate some specific embodiments and come sets forth in detail a kind of novel subframe structure of the present utility model, these a few examples are only for the usefulness that principle of the present utility model and embodiment thereof are described, but not to restriction of the present utility model, under the situation that does not break away from spirit and scope of the present utility model, those of ordinary skill in the art can also make various distortion and improvement.For example, the aforementioned U-shaped shape of first slot and second slot can be changed into any other suitable shape or first slot and second slot be designed to the two shape inequality fully or brace panel 20 be packed on the after cross member 2 or the like by bolt.Therefore, all technical schemes that are equal to all should belong to category of the present utility model and be limited by every claim of the present utility model.
Claims (8)
1. novel subframe structure, it comprises front cross rail (1), after cross member (2) and two longerons that form closed frame by installing mutually, it is characterized in that, one side end of described front cross rail (1) is provided with first slot, and described first slot can be gone into by suitable ground plug-in mounting in the corresponding end that is arranged in the described longeron of homonymy.
2. novel subframe structure according to claim 1 is characterized in that the end side of described front cross rail (1) is provided with second slot, and described second slot can be gone into by suitable ground plug-in mounting in the corresponding end that is arranged in the described longeron of homonymy.
3. novel subframe structure according to claim 2 is characterized in that, described first slot and described second slot all are opening and the U-shaped of laterally placing outwardly.
4. novel subframe structure according to claim 3 is characterized in that the size of described first slot and second slot is identical, and it is symmetricly set on the described front cross rail (1).
5. novel subframe structure according to claim 4 is characterized in that, the cross sectional shape of described front cross rail (1) is square.
6. according to each described novel subframe structure among the claim 1-5, it is characterized in that the inside of described after cross member (2) is provided with support component.
7. novel subframe structure according to claim 6 is characterized in that described support component is a brace panel, and it vertically is welded at up and down between the cover plate of described after cross member (2).
8. novel subframe structure according to claim 7 is characterized in that the thickness of described brace panel is 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202870598U CN201703433U (en) | 2009-12-30 | 2009-12-30 | Structure of novel auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202870598U CN201703433U (en) | 2009-12-30 | 2009-12-30 | Structure of novel auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201703433U true CN201703433U (en) | 2011-01-12 |
Family
ID=43440586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202870598U Expired - Lifetime CN201703433U (en) | 2009-12-30 | 2009-12-30 | Structure of novel auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201703433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847792A (en) * | 2012-11-29 | 2014-06-11 | 光阳工业股份有限公司 | Modular frame device for small automobile |
| CN104608824A (en) * | 2013-11-04 | 2015-05-13 | 上海汽车集团股份有限公司 | Vehicle and auxiliary frame installing point structure thereof |
-
2009
- 2009-12-30 CN CN2009202870598U patent/CN201703433U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847792A (en) * | 2012-11-29 | 2014-06-11 | 光阳工业股份有限公司 | Modular frame device for small automobile |
| CN104608824A (en) * | 2013-11-04 | 2015-05-13 | 上海汽车集团股份有限公司 | Vehicle and auxiliary frame installing point structure thereof |
| CN104608824B (en) * | 2013-11-04 | 2017-04-19 | 上海汽车集团股份有限公司 | Vehicle and auxiliary frame installing point structure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |