CN103318258A - Auxiliary frame and engineering vehicle - Google Patents
Auxiliary frame and engineering vehicle Download PDFInfo
- Publication number
- CN103318258A CN103318258A CN2013102884962A CN201310288496A CN103318258A CN 103318258 A CN103318258 A CN 103318258A CN 2013102884962 A CN2013102884962 A CN 2013102884962A CN 201310288496 A CN201310288496 A CN 201310288496A CN 103318258 A CN103318258 A CN 103318258A
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- subframe
- crossbeam
- longeron
- brace panel
- panel
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Abstract
The invention discloses an auxiliary frame and an engineering vehicle comprising the auxiliary frame. The auxiliary frame comprises two longitudinal beams (1) and a transverse beam (2) arranged between the two longitudinal beams (1), wherein the cross section of the transverse beam (2) is in a non-closed shape. Due to the fact that the transverse beam with the cross section in the non-closed shape is used, the torsion rigidity of the transverse beam can be reduced, the stress acting on the connecting positions of the transverse beam and the longitudinal beams under the torque effect is reduced, therefore, stress concentration at the connecting positions is reduced, and the connection between the longitudinal beams and the transverse beam is prevented from losing effectiveness.
Description
Technical field
The present invention relates to engineering truck, particularly, relate to a kind of subframe and the engineering truck that comprises this subframe.
Background technology
Engineering truck generally includes mounting mechanism (such as mixer barrel of mixermobile etc.).Upper mounting mechanism is installed on the subframe usually, and subframe is installed on the chassis, thereby the load of upper mounting mechanism evenly passes to the chassis by subframe.Existing subframe comprises two longerons 1 and is welded on crossbeam 2 between the longeron 1 as shown in Figure 1.Wherein, crossbeam 2 is hollow tubular column structure.When the car load band was loaded in uneven road surface and travels, subframe can be subject to the Moment of load of mounting mechanism and uneven road surface to the torsional interaction on chassis.Especially the torsional interaction that causes of uneven road surface easily stress occurs at the weld of longeron 1 and crossbeam 2 and concentrates, and seriously will cause the junction fatigue cracking to occur, even cause crossbeam 2 directly to rupture.Therefore, existing subframe exists because bearing moment of torsion and causes the problem that lost efficacy.
Summary of the invention
The purpose of this invention is to provide a kind of subframe of losing efficacy because bearing moment of torsion can avoided.
To achieve these goals, the invention provides a kind of subframe, this subframe comprises two longerons and is arranged on crossbeam between described two longerons, and wherein, the cross-sectional plane of described crossbeam is nonocclusive shape.
The present invention also provides a kind of engineering truck, and wherein, described engineering truck comprises subframe of the present invention.
Pass through technique scheme, have the crossbeam of non-close-shaped cross-sectional plane by employing, can reduce the rigidity of turning round of crossbeam, reduce so that under torsional interaction, act on the stress of the junction of crossbeam and longeron, thereby the stress that has reduced this place is concentrated, and has avoided the Joint failure of longitudinal and cross beam.
Other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of specification sheets, is used from explanation the present invention with the following specific embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the partial view of the structure of the existing subframe of explanation;
Fig. 2 is the amplification stereogram of the junction of longitudinal and cross beam among Fig. 1;
Fig. 3 is the partial view of the structure of explanation subframe of the present invention;
Fig. 4 a to Fig. 4 d is the view of exemplary embodiment of cross-sectional plane of the crossbeam of explanation subframe of the present invention;
Fig. 5 a and Fig. 5 d are the views of exemplary embodiment of the connecting panel of explanation subframe of the present invention;
Fig. 6 a and Fig. 6 d are the views of exemplary embodiment of the brace panel of explanation subframe of the present invention.
Description of reference numerals
1 longeron, 2 crossbeams, 3 connecting panel 3a the first plug welding hole
4 brace panel 4a the second plug welding hole
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
In the present invention, for ease of understanding and describing, in the situation that do not do opposite explanation, the upper and lower, left and right of the noun of locality of use shown in " upper and lower, left and right " typically refer to reference to the accompanying drawings; " inside and outside " refers to inside and outside with respect to the profile of each parts itself, but the above-mentioned noun of locality is not limited to the present invention.
According to an aspect of the present invention, provide a kind of subframe, this subframe comprises two longerons 1 and is arranged on crossbeam 2 between described two longerons 1, and wherein, the cross-sectional plane of described crossbeam 2 is nonocclusive shape.
The crossbeam 2 that has non-close-shaped cross-sectional plane by employing, can be in the situation that keep the constant rigidity of turning round that reduces crossbeam 2 of curved rigidity, reduce so that under torsional interaction, act on the stress of the junction of crossbeam 2 and longeron 1, thereby the stress that has reduced this place is concentrated, and has avoided the Joint failure of longeron 1 and crossbeam 2.
Wherein, crossbeam 2 can adopt various forms, as long as have non-close-shaped cross-sectional plane.For example, described crossbeam 2 can be channel-section steel (shown in Fig. 4 a).Perhaps, the cross-sectional plane of described crossbeam 2 can be in I-shape (shown in Fig. 4 b), zigzag (shown in Fig. 4 c) and the C font (shown in Fig. 4 d) any one.
Preferably, the edge of a wing of described crossbeam 2 can be provided with connecting panel 3, and described crossbeam 2 is welded in described longeron 1 by described connecting panel 3.Thus, crossbeam 2 directly is not connected with longeron 1, and can pass through the area of contact of connecting panel 3 increases and longeron 1, thereby can reduce the flexure stress that is passed to longeron 1 by crossbeam 2, and then has reduced the stress that causes because of this flexure stress and concentrated.Therefore, subframe of the present invention can bear Moment better.
Preferably, each end of described crossbeam 2 can be respectively arranged with two relative described connecting panels 3, connects to obtain stable transition by connecting panel 3.
More preferably, described connecting panel 3 can comprise and described longeron 1 welds first end and the second end that is connected with described crossbeam 2, the cross-sectional plane of described first end is greater than the cross-sectional plane of described the second end.Thus, further reduced the flexure stress that is delivered to longeron 1 from crossbeam 2.
For this reason, as shown in Figure 3, towards described the second end, the width of described connecting panel 3 is reduced gradually from described first end.Particularly, connecting panel 3 can form the shape shown in Fig. 5 a and Fig. 5 b.
In addition, preferably, the middle part of described connecting panel 3 can have the first plug welding hole 3a, and described connecting panel 3 can be welded in described crossbeam 2 by described the first plug welding hole 3a and described the second end.Thus, can guarantee to have enough fusion lengths between connecting panel 3 and the crossbeam 2 by the first plug welding hole 3a, to reduce weld stress.
In addition, preferably, can be provided with brace panel 4 on the described longeron 1, described connecting panel 3 is welded in described brace panel 4 and is fixed in described longeron 1 by described brace panel 4.Thus, connecting panel 3 and not directly welding of longeron 1 connect but carry out transition by brace panel 4, thereby can disperse by brace panel 4 stress of junction.
After longeron 1 arranges brace panel 4, longeron 1 with the cross-sectional plane of brace panel 4 welding on rigidity sudden change along short transverse may occur, thereby cause fatigue cracking.Therefore, preferably, as shown in Figure 3, along the short transverse of described longeron 1, the rigidity at the two ends of described brace panel 4 is greater than the rigidity at the middle part of described brace panel 4.Thus, brace panel 4 forms the structure that reduces to rigidity of middle from two ends, to reduce longeron 1 along the rigidity sudden change of short transverse.
Wherein, brace panel 4 can adopt various suitable shapes, as long as form the rigidity at two ends greater than the form of the rigidity at middle part.For example, can make the width at two ends of brace panel 4 greater than the width at middle part, as shown in Figure 3.
More preferably, as shown in Figure 3, can be provided with the second plug welding hole 4a on the described brace panel 4, described brace panel 4 is welded in described longeron 1 by edge and the described plug welding hole 4a of described brace panel 4.Can guarantee to have enough fusion lengths between brace panel 4 and the longeron 1 by the second plug welding hole 4a, to reduce weld stress.Selectively, the width at middle part that also can be by making brace panel 4 further dwindles, with the weld seam long enough of guaranteeing to arrange along the edge of brace panel 4, shown in Fig. 6 a.More preferably, in this case, can further increase the length of weld seam and reduce weld stress by the second plug welding hole 4a is set, shown in Fig. 6 b.
According to a further aspect in the invention, provide a kind of engineering truck, wherein, described engineering truck comprises subframe of the present invention.The crossbeam 2 that has non-close-shaped cross-sectional plane by employing, can be in the situation that keep the constant rigidity of turning round that reduces crossbeam 2 of curved rigidity, reduce so that under torsional interaction, act on the stress of the junction of crossbeam 2 and longeron 1, thereby the stress that has reduced this place is concentrated, and has avoided the Joint failure of longeron 1 and crossbeam 2.Therefore, engineering truck of the present invention has good stability in use.
Wherein, described engineering truck can comprise mounting mechanism and chassis, and described upper mounting mechanism is installed on the described subframe, and described subframe is installed on the described chassis, thereby can bear the Moment of upper mounting mechanism and the torsional interaction on chassis by subframe.Described engineering truck can be all kinds.For example, mixermobile etc.
Below describe by reference to the accompanying drawings preferred implementation of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode.For fear of unnecessary repetition, the present invention is to the no longer separately explanation of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. subframe, this subframe comprise two longerons (1) and be arranged on crossbeam (2) between described two longerons (1), and it is characterized in that, the cross-sectional plane of described crossbeam (2) is nonocclusive shape.
2. subframe according to claim 1 is characterized in that, described crossbeam (2) is channel-section steel, and perhaps the cross-sectional plane of described crossbeam is any one in C font, zigzag and the I-shape.
3. subframe according to claim 1 is characterized in that, the edge of a wing of described crossbeam (2) is provided with connecting panel (3), and described crossbeam (2) is welded in described longeron (1) by described connecting panel (3).
4. subframe according to claim 3 is characterized in that, each end of described crossbeam (2) is respectively arranged with two relative described connecting panels (3).
5. subframe according to claim 4, it is characterized in that, described connecting panel (3) comprises and described longeron (1) welds first end and the second end that is connected with described crossbeam (2), the cross-sectional plane of described first end is greater than the cross-sectional plane of described the second end.
6. subframe according to claim 5 is characterized in that, towards described the second end, the width of described connecting panel (3) reduces gradually from described first end.
7. subframe according to claim 5 is characterized in that, the middle part of described connecting panel (3) has the first plug welding hole (3a), and described connecting panel (3) is welded in described crossbeam (2) by described the first plug welding hole (3a) and described the second end.
8. the described subframe of any one according to claim 3-7, it is characterized in that, be provided with brace panel (4) on the described longeron (1), described connecting panel (3) is welded in described brace panel (4) and is fixed in described longeron (1) by described brace panel (4).
9. subframe according to claim 8 is characterized in that, along the short transverse of described longeron (1), the rigidity at the two ends of described brace panel (4) is greater than the rigidity at the middle part of described brace panel (4).
10. subframe according to claim 9 is characterized in that, is provided with the second plug welding hole (4a) on the described brace panel (4), and described brace panel (4) is welded in described longeron (1) by edge and the described plug welding hole (4a) of described brace panel (4).
11. an engineering truck is characterized in that, described engineering truck comprises according to claim 1 the described subframe of any one in-10.
12. engineering truck according to claim 11 is characterized in that, described engineering truck comprises mounting mechanism and chassis, and described upper mounting mechanism is installed on the described subframe, and described subframe is installed on the described chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102884962A CN103318258A (en) | 2013-07-10 | 2013-07-10 | Auxiliary frame and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102884962A CN103318258A (en) | 2013-07-10 | 2013-07-10 | Auxiliary frame and engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103318258A true CN103318258A (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102884962A Pending CN103318258A (en) | 2013-07-10 | 2013-07-10 | Auxiliary frame and engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103318258A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627766A (en) * | 2017-02-21 | 2017-05-10 | 北京汽车研究总院有限公司 | Automobile frame and automobile |
| WO2021083062A1 (en) * | 2019-10-31 | 2021-05-06 | 宁德时代新能源科技股份有限公司 | Battery pack lower box body, battery pack, device, and assembling method for battery pack lower box body |
| CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08282533A (en) * | 1995-04-19 | 1996-10-29 | Isuzu Motors Ltd | Frame for vehicle |
| EP1481877A1 (en) * | 2002-03-05 | 2004-12-01 | Isuzu Motors Limited | Connection structure of side member to cross member |
| CN2700202Y (en) * | 2004-04-29 | 2005-05-18 | 中国第一汽车集团公司 | Chassis frame for large-size passenger bus |
| CN201530419U (en) * | 2009-11-30 | 2010-07-21 | 中国重汽集团济南动力有限公司 | Self-unloading automobile frame assembly |
| CN201670266U (en) * | 2010-05-05 | 2010-12-15 | 三河市新宏昌专用车有限公司 | Auxiliary frame of dumper |
| CN202400160U (en) * | 2011-11-23 | 2012-08-29 | 洛阳中集凌宇汽车有限公司 | Elastic crossbeam of auxiliary beam of concrete mixer |
| CN202863553U (en) * | 2012-10-23 | 2013-04-10 | 山东临沃重机有限公司 | Rear suspension transverse beam for car frame |
-
2013
- 2013-07-10 CN CN2013102884962A patent/CN103318258A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08282533A (en) * | 1995-04-19 | 1996-10-29 | Isuzu Motors Ltd | Frame for vehicle |
| EP1481877A1 (en) * | 2002-03-05 | 2004-12-01 | Isuzu Motors Limited | Connection structure of side member to cross member |
| CN2700202Y (en) * | 2004-04-29 | 2005-05-18 | 中国第一汽车集团公司 | Chassis frame for large-size passenger bus |
| CN201530419U (en) * | 2009-11-30 | 2010-07-21 | 中国重汽集团济南动力有限公司 | Self-unloading automobile frame assembly |
| CN201670266U (en) * | 2010-05-05 | 2010-12-15 | 三河市新宏昌专用车有限公司 | Auxiliary frame of dumper |
| CN202400160U (en) * | 2011-11-23 | 2012-08-29 | 洛阳中集凌宇汽车有限公司 | Elastic crossbeam of auxiliary beam of concrete mixer |
| CN202863553U (en) * | 2012-10-23 | 2013-04-10 | 山东临沃重机有限公司 | Rear suspension transverse beam for car frame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627766A (en) * | 2017-02-21 | 2017-05-10 | 北京汽车研究总院有限公司 | Automobile frame and automobile |
| WO2021083062A1 (en) * | 2019-10-31 | 2021-05-06 | 宁德时代新能源科技股份有限公司 | Battery pack lower box body, battery pack, device, and assembling method for battery pack lower box body |
| CN114506389A (en) * | 2020-11-16 | 2022-05-17 | 北汽福田汽车股份有限公司 | Frame cross member and vehicle |
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Application publication date: 20130925 |