CN105730219A - Automobile radiator side board with stress reducing function - Google Patents
Automobile radiator side board with stress reducing function Download PDFInfo
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- CN105730219A CN105730219A CN201410753446.1A CN201410753446A CN105730219A CN 105730219 A CN105730219 A CN 105730219A CN 201410753446 A CN201410753446 A CN 201410753446A CN 105730219 A CN105730219 A CN 105730219A
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- stress
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- side board
- side plate
- heat radiator
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Abstract
The invention relates to an automobile radiator side board with a stress reducing function. A stress groove is formed in the center position of the side face of the side board and composed of an upper U-shaped groove, a lower U-shaped groove and a straight groove, so that the whole stress groove is in an I shape, wherein the two U-shaped grooves are formed oppositely, and the bottoms of the U-shaped grooves communicate with each other through the straight groove. Compared with the prior art, the automobile radiator side board has the beneficial effects of being simple in structure, good in stress elimination effect and the like.
Description
Technical field
The present invention relates to a kind of radiator, especially relate to a kind of automobile heat radiator lateral plate reducing stress.
Background technology
In actual parts structure, major part structural deterioration accident is concentrated by stress and is caused.In order to ensure the use safety of design of part, improve quality and the economic benefit of product, it is necessary to the scientifically problem of stress concentration of parts processed structure.But, design of part stress intensively problem to be solved, would have to the processability of product structure of part is discussed.The processability of product structure of part refers to that designed part is under the premise that can meet instructions for use, the feasibility of manufacture and economy.It is one of good and bad technical specification of evaluating parts structural design, is again the good and bad consequence brought of structural design of fittings.There is the technological part of satisfactory texture, can under the premise meeting instructions for use, it is possible to both economical, efficient, qualifiedly processed out.
In order to part can be both economical, efficient, qualified processed out, the cutting technology of design of part also must be considered that and obtains.In machinery manufacturing industry, the major part dimensional accuracy of part, surface roughness, form accuracy and positional precision, finally to ensure by machining.Therefore, when design needs the design of part carrying out machining, it is also contemplated that the requirement of cutting technology.
So-called stress, refers to the power suffered by object in unit are, and it is it is emphasised that the force-bearing situation of interior of articles；General object, under being subject to External Force Acting, will produce the stress of opposing external force inside it；Object is not when by External Force Acting, and internal intrinsic stress is internal stress, and it is to produce due to the uneven plastic deformation of interior of articles each several part.According to the scope of internal stress effect, it can be divided three classes: first kind internal stress (macroscopic view internal stress), namely uneven due to the deformation of material each several part and internal stress in the macro-scope that causes；Equations of The Second Kind internal stress (microcosmic internal stress), the i.e. internal stress of uneven deformation and the crystal grain that produces or subgrain intergranular between each crystal grain of object or subgrain (in nature, most solid matters are all crystal)；3rd class internal stress (distortion of lattice stress), namely due to distortion of lattice, makes a part of atom in crystal deviate its equilbrium position and the internal stress that causes, and it is topmost internal stress in deformable object (destroyed object).
There is the part of residual stress, its interior tissue is in the state of a kind of extremely unstable, there is the strong tendency returning to unstress state, therefore stress is constantly discharged, until it is wholly absent. in this disappearance process of residual stress, the shape of part gradually changes, and original machining accuracy is lost gradually.
The generation of residual stress
1) residual stress produced in blank manufacture and heat treatment process
In casting, forging, in weldering and heat treatment process, due to workpiece each several part uneven expand with heat and contract with cold and metallographic structure change time stereomutation, inside workpiece can produce very big internal stress. Workpiece structure is more complicated, wall thickness difference more big, radiating condition is more poor, internal stress is more big. and cutting metal in following process again, the stress of inside workpiece will redistribute, thus resulting in mismachining tolerance.
2) residual stress that the cold alignment of workpiece produces
Thin and long shafts part adds man-hour, the method generally adopting cold alignment corrects flexural deformation. for making workpiece straighten, the stress of portion of material must be over its elastic limit, namely plastic deformation is produced. after external force is removed, in workpiece, elastic part to recover original shape, and the material after plastic deformation can not recover. two sections of material checks and balance, stress redistributes, reach new poised state. at this moment, if internal stress will be produced at inside workpiece. in following process, cut layer of metal again, redistribution is caused bending by the stress of inside workpiece, therefore error in geometrical form is produced.
3) machining produces residual stress
The residual stress of surface layer in mechanical processing process, due to the comprehensive function of cutting force and heat in metal cutting, surface layer metal lattice can be made to deform or make metallographic structure change, thus can be caused.Component in the fabrication process, is subjected to the effect from factors such as various techniques and impact；After these factors disappear, if above-mentioned suffered by component acts on impact and can not be wholly absent therewith, still have partial action and impact to remain in component, then the effect of this residual and impact are called residual stress or residual stress.
In machining, the generation of surface of the work residual stress is limited mainly by the restriction of three factors: plastic deformation that plastic deformation that mechanical force causes, thermal stress cause and the change in volume that phase transformation causes.Surface layer generation Plastic Flow and extension phenomenon under the action of mechanical stress, and the deformation of the elastic return of nexine metal is subject to pining down of plastic deformation surface metal, surface produces residual compressive stress.The high temperature of the surface of the work produced in grinding, makes surface layer enter perfect plasticity state, and work-piece cools rear surface layer metal contracts is subject to pining down of nexine metal, makes surface produce residual tension.After emery wheel and work piece contact zone temperature reach metal phase change temperature, surface texture generation metallographic structure changes, the character of its surface residual stress, changes with the change of metallographic structure before and after grinding.In machined surface, the generation of residual stress is the comprehensive above coefficient result of several factors.In general grinding process, relatively bigger than pressure and friction, the grinding area temperature of generation is higher.Surface of the work usually produces residual tension because of pyroplastic deformation.To this, reduce the temperature of grinding skin targetedly, reduce consequent plastic deformation, just can suppress the generation of residual tension, even can produce residual compressive stress.
For automobile heat radiator lateral plate before carrying out correlation test, indices all meets design requirement and relevant industries standard.But, after carrying out pressure pulse test, it has been found that side plate there occurs deformation, and the also change of relevant installation dimension, beyond scope of design requirement.Through measuring, the core of the product after test is high and installation dimension is less than normal, core width size is bigger than normal, draw by analysis, product is when carrying out pulse testing, at core cross direction, product being defined flatulence of heat type stress, causes that the core width of product becomes large-sized, the size in core height direction has past lira thus causing that core high size and installation are jealous and diminishing under the impact of flatulence of heat type stress simultaneously.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of automobile heat radiator lateral plate reducing stress is provided.
The purpose of the present invention can be achieved through the following technical solutions: a kind of automobile heat radiator lateral plate reducing stress, it is characterised in that the center side place of this side plate is provided with stress groove.
Described stress groove is arranged on U-type groove and the craspedodrome groove composition bottom two U-type groove of intermediate connection dorsad by upper and lower two, makes whole stress groove in " work " font shape.
The width of described craspedodrome groove is 1～5mm, and length is the 1/2～2/3 of side plate length, and the width of described U-type groove is 2～3 times of craspedodrome groove, and the size shape of two U-type groove is identical.
Described stress groove is disposed longitudinally on side plate center.
Compared with prior art, the present invention adds a stress groove in the structure of existing side plate, after carrying out pressure pulse test, relevant size is measured, measurement result to be much better than before changing and meet design requirement and entrucking requirement, and the product deformation after test is less simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of side plate of the present invention；
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Fig. 1～2, a kind of automobile heat radiator lateral plate reducing stress, the center side place of this side plate 1 is provided with stress groove 2.Described stress groove 2 is arranged on U-type groove 3 dorsad by upper and lower two, and the craspedodrome groove 4 bottom two U-type groove 3 of intermediate connection forms, and makes whole stress groove in " work " font shape.The width of described craspedodrome groove is 2mm, and length is the 1/2 of side plate length, and the width of described U-type groove is 2 times of craspedodrome groove, and the size shape of two U-type groove is identical.Described stress groove is disposed longitudinally on side plate center.
Embodiment 2
A kind of automobile heat radiator lateral plate reducing stress, the center side place of this side plate is provided with stress groove.Described stress groove is arranged on U-type groove dorsad by upper and lower two, and the craspedodrome groove 4 bottom two U-type groove of intermediate connection forms, and makes whole stress groove in " work " font shape.The width of described craspedodrome groove is 5mm, and length is the 2/3 of side plate length, and the width of described U-type groove is 3 times of craspedodrome groove, and the size shape of two U-type groove is identical.Described stress groove is disposed longitudinally on side plate center.
Claims (4)
1. the automobile heat radiator lateral plate that can reduce stress, it is characterised in that the center side place of this side plate is provided with stress groove.
2. a kind of automobile heat radiator lateral plate reducing stress according to claim 1, it is characterized in that, described stress groove is arranged on U-type groove and the craspedodrome groove composition bottom two U-type groove of intermediate connection dorsad by upper and lower two, makes whole stress groove in " work " font shape.
3. a kind of automobile heat radiator lateral plate reducing stress according to claim 2, it is characterized in that, the width of described craspedodrome groove is 1～5mm, and length is the 1/2～2/3 of side plate length, the width of described U-type groove is 2～3 times of craspedodrome groove, and the size shape of two U-type groove is identical.
4. a kind of automobile heat radiator lateral plate reducing stress according to claim 1, it is characterised in that described stress groove is disposed longitudinally on side plate center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753446.1A CN105730219A (en) | 2014-12-10 | 2014-12-10 | Automobile radiator side board with stress reducing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753446.1A CN105730219A (en) | 2014-12-10 | 2014-12-10 | Automobile radiator side board with stress reducing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105730219A true CN105730219A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410753446.1A Pending CN105730219A (en) | 2014-12-10 | 2014-12-10 | Automobile radiator side board with stress reducing function |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018999A (en) * | 2004-09-15 | 2007-08-15 | 贝洱两合公司 | Side-plate for a radiator |
| US20070261820A1 (en) * | 2006-05-11 | 2007-11-15 | Rousseau Tony P | Self-breaking radiator side plates |
| US20080047689A1 (en) * | 2005-07-12 | 2008-02-28 | Denso Corporation | Heat exchanger |
| CN201748837U (en) * | 2010-08-12 | 2011-02-16 | 瑞安市邦众汽车部件有限公司 | Heat radiator of automobile |
| CN203640823U (en) * | 2013-10-29 | 2014-06-11 | 保定汇智达汽车散热器有限公司 | Stress dispersion type inner side plate for automobile radiator |
| CN104180702A (en) * | 2013-05-21 | 2014-12-03 | 重庆长安汽车股份有限公司 | Edge baffle plate for eliminating thermal stress of automobile radiator and automobile radiator |
| CN204354805U (en) * | 2014-12-10 | 2015-05-27 | 上海德朗汽车零部件制造有限公司 | A kind of automobile heat radiator lateral plate reducing stress |
-
2014
- 2014-12-10 CN CN201410753446.1A patent/CN105730219A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018999A (en) * | 2004-09-15 | 2007-08-15 | 贝洱两合公司 | Side-plate for a radiator |
| US20080047689A1 (en) * | 2005-07-12 | 2008-02-28 | Denso Corporation | Heat exchanger |
| US20070261820A1 (en) * | 2006-05-11 | 2007-11-15 | Rousseau Tony P | Self-breaking radiator side plates |
| CN201748837U (en) * | 2010-08-12 | 2011-02-16 | 瑞安市邦众汽车部件有限公司 | Heat radiator of automobile |
| CN104180702A (en) * | 2013-05-21 | 2014-12-03 | 重庆长安汽车股份有限公司 | Edge baffle plate for eliminating thermal stress of automobile radiator and automobile radiator |
| CN203640823U (en) * | 2013-10-29 | 2014-06-11 | 保定汇智达汽车散热器有限公司 | Stress dispersion type inner side plate for automobile radiator |
| CN204354805U (en) * | 2014-12-10 | 2015-05-27 | 上海德朗汽车零部件制造有限公司 | A kind of automobile heat radiator lateral plate reducing stress |
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Application publication date: 20160706 |