CN105035170A - White car body horizontal-longitudinal beam anti-bending structure and arrangement method - Google Patents
White car body horizontal-longitudinal beam anti-bending structure and arrangement method Download PDFInfo
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- CN105035170A CN105035170A CN201510465080.2A CN201510465080A CN105035170A CN 105035170 A CN105035170 A CN 105035170A CN 201510465080 A CN201510465080 A CN 201510465080A CN 105035170 A CN105035170 A CN 105035170A
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Abstract
The invention provides a white car body horizontal-longitudinal beam anti-bending structure and an arrangement method, wherein one edge of a front floor installation horizontal beam is connected to a front floor rear-sectional longitudinal beam by a first connecting component, the other edge of the front floor installation horizontal beam is connected to a rear floor, the front floor installation horizontal beam is perpendicular to the horizontal rear floor, the front floor installation horizontal beam and the front end of the rear floor from a sealing structure with a varied cross section, and a sealing area formed by the front floor installation horizontal beam and a middle cross section of the rear floor is longer and narrower than a sealing area formed by the front floor installation horizontal beam and a cross section on the left side of the rear floor. The sealed cross sections are formed in a front floor middle-sectional longitudinal beam, between the front floor installation horizontal beam and the rear floor, and on bottoms of a longitudinal beam on the left side of a water tank support and a longitudinal beam on the right side of the water tank support, so anti-bending performance of a while car body is enhanced. Reinforcing beams and reinforcing plates are disposed on a water tank support assembly and overall weight is reduced by 20%, so bending frequency of the water tank support assembly is increased by 1 Hz-2 Hz.
Description
Technical field
The present invention relates to automotive body structure technical field, particularly a kind of body in white transverse and longitudinal beam Anti-bending structure and arrangement.
Background technology
Critical parts in auto body Path of Force Transfer is vehicle body keystone configuration, carry load and energy-absorbing in vehicle collisions, be the main determining factor that can crashing vehicle obtain high star safety evaluation, but on body force transferring path, the reasonableness of structure design, utility, technique are realisation is all the main cause of impact collision result.Structure design in Path of Force Transfer, not accomplishes in one move, and needs trial repeatedly, improvement, optimization, checking could realize optimum design effect.
Traditional automobile body-in-white structure, vehicle body total quality irrational distribution, causes anti-bending strength poor.The connection that crossbeam is installed on longeron and rear floor is installed on the connection that the connection of crossbeam is installed on front floor back segment longeron and front floor, crossbeam and rear floor are installed in front floor and rear floor, its mounting structure simply, bearing capacity and bending resistance poor.The deadweight of tank bracket assembly is heavier, and lower and upper cross-member thickness is comparatively large, and lay particular stress on as the excitation end quality of body in white although have good load-bearing property, can evoke the mode of flexural vibration of entirety, resistance to bending is also more weak.
Summary of the invention
The deficiencies in the prior art in view of the above, the object of the present invention is to provide a kind of body in white transverse and longitudinal beam Anti-bending structure and arrangement, improve the anti-bending strength of automobile body-in-white.
For achieving the above object and other relevant objects, the invention provides a kind of body in white transverse and longitudinal beam Anti-bending structure, comprise tank bracket assembly, front side member assembly, crossbeam is installed in subframe front end, centre gangway, stage casing, front floor longeron, front floor back segment longeron, crossbeam and rear floor installation assembly are installed in front floor, described rear floor installation assembly comprises rear floor and installs longeron, crossbeam and rear floor are installed in rear floor, crossbeam is installed while be connected by the first link with front floor back segment longeron in described front floor, front floor is installed crossbeam another side and is connected with rear floor, and the rear floor perpendicular of crossbeam and level is installed on described front floor, described front floor installation crossbeam and rear ground front edge of board form the enclosed construction of variable section, and the length that the closed region that the cross section on the left of crossbeam and rear floor is formed is installed than front floor in the closed region that described front floor installation crossbeam and the cross section in the middle of rear floor are formed is long, width is little.
Adopt said structure, plate installation crossbeam and rear ground front edge of board form the enclosed construction of variable section previously, play crucial unbending, and the anti-bending strength that improve front floor installation crossbeam and front floor back segment longeron is connected by the first link, the thickness controlling front floor installation crossbeam can promote its bending resistance effect.
As preferably: described first link is semi-enclosed square structure, and this first link opening part stretches out, and this first link one end and front floor back segment longitudinal beam welding, the first link extension and front floor are installed crossbeam edge and welded.
As preferably: described rear floor is installed longeron and installed crossbeam with rear floor and be connected by transverse and longitudinal beam link, crossbeam is installed on described rear floor and crossbeam is installed at a distance of 390mm in front floor, and the thickness that longeron is installed on described rear floor, crossbeam and transverse and longitudinal beam link are installed in rear floor is 0.8-1.0mm.
As preferably: described transverse and longitudinal beam link becomes T-type structure, this transverse and longitudinal beam link is buckled in rear floor and installs longeron and rear floor is installed on crossbeam, is connected by 2 or 3 layers of spot welding; Described rear floor is installed longeron and front floor and is installed crossbeam and adopt and stitch the neat spot welding welding or increase area of contact and be connected.
As preferably: stage casing, described front floor longeron comprises inner panel and stage casing girder plate in the middle of stage casing side rail, stage casing longeron, the cross section that in the middle of described stage casing side rail, stage casing longeron, inner panel and the welding of stage casing girder plate are formed is enclosed construction.
As preferably: described subframe front end install crossbeam comprise first on the right side of connecting cross beam on the left of connecting cross beam and second on the left of connecting cross beam, first on the right side of connecting cross beam, second; Stage casing, described front floor longeron is arranged in the downside of connecting cross beam on the left of connecting cross beam and second on the right side of in the of second, the side plate of stage casing, described front floor longeron is connected with the side flanging spot welding of connecting cross beam on the left of connecting cross beam on the right side of in the of first and first, on the right side of in the of described first on the right side of connecting cross beam, second on the left of connecting cross beam, first on the left of connecting cross beam and second thickness of connecting cross beam be 1.6-2.0mm.
As preferably: described tank bracket assembly comprises tank bracket left-hand stringer, tank bracket entablatrance, tank bracket cross sill and tank bracket right-hand stringer, strength beam is provided with between described tank bracket entablatrance and tank bracket cross sill, the wide 120mm in strength beam upper end, the wide 80mm in lower end, be respectively arranged with brace panel bottom described tank bracket left-hand stringer and tank bracket right-hand stringer, this brace panel and tank bracket left-hand stringer and tank bracket right-hand stringer form the closed region that a cross section is annular respectively.
As preferably: described front side member assembly comprises the left web of front side member, the right web of front side member and front side member back shroud, the left web of front side member and the right web of front side member form closed cavity, the thickness of the left web of front side member and the right web of front side member is 1.6mm, and the thickness of front side member back shroud is 1.5-1.8mm.
The present invention provides a kind of arrangement of body in white transverse and longitudinal beam simultaneously, comprise above-mentioned a kind of body in white transverse and longitudinal beam Anti-bending structure, described tank bracket assembly weight is 18.5-20kg, described front side member assembly weight is greater than the weight that crossbeam is installed in subframe front end, and the weight of described front floor back segment longeron and centre gangway is all less than the weight that crossbeam is installed in subframe front end.The overall quality weight forming front side member assembly, subframe front end installation crossbeam, rear floor installation assembly, the quality that front floor back segment longeron, front floor install crossbeam and centre gangway is light.
As preferably: described tank bracket entablatrance and tank bracket cross sill thickness are 1.0mm, described tank bracket left-hand stringer, strength beam and tank bracket right-hand stringer thickness are 0.8mm, it is 1.6mm that beam thickness is installed in described subframe front end, stage casing, front floor longeron thickness is 0.7-0.8mm, the thickness that crossbeam is installed on described front floor is 0.7-1.6mm, and the thickness that longeron and rear floor installation crossbeam are installed in described rear floor is 0.8mm.
As mentioned above, the invention has the beneficial effects as follows:
1, body quality distribution rationally, final formation tank bracket assembly is light, and the subframe of front side member assembly and overlap joint installs crossbeam weight, stage casing, front floor longeron, crossbeam weight is installed on front floor, and crossbeam is installed on rear floor and the light total quality anti-bending strength of longeron is installed on rear floor.
2, plate installation crossbeam and rear ground front edge of board form the enclosed construction of variable section previously, play crucial unbending, and the thickness installing crossbeam by controlling front floor can promote its bending resistance effect.
3, install between crossbeam and rear floor installation longeron on rear floor, longeron is installed on rear floor and front floor is installed between crossbeam, and front floor back segment longeron and front floor are installed and are adopted the form of link or joint to strengthen processing between crossbeam, strengthen the bending strength between each parts.
4, stage casing, front floor longeron, front floor are installed between crossbeam and rear floor and are all formed closed cross section bottom tank bracket left-hand stringer and tank bracket right-hand stringer, improve the anti-bending strength of vehicle body entirety.
5, tank bracket assembly arranges strength beam and brace panel, overall loss of weight 20%, makes tank bracket assembly corner frequency promote 1-2Hz.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of hidden parts structure of the present invention;
The structural representation that Fig. 3 is rear floor in the present invention, crossbeam and front floor back segment longeron are installed in front floor;
Fig. 4 is the structural representation that in the present invention, crossbeam is installed on front floor;
Fig. 5 is the schematic cross-section at B place in Fig. 3;
Fig. 6 is the schematic cross-section at A place in Fig. 3;
Fig. 7 is the annexation figure that crossbeam, transverse and longitudinal beam link, rear floor installation longeron are installed in rear floor;
Fig. 8 is the annexation figure that crossbeam and front floor back segment longeron, front floor back segment longeron are installed in front floor;
Fig. 9 is the annexation figure that crossbeam and rear floor installation longeron are installed in rear floor;
Figure 10 is the structural representation of stage casing, front floor longeron;
Figure 11 is the schematic cross-section at C place in Figure 10;
Figure 12 is the annexation figure that crossbeam and front floor stage casing longeron and centre gangway are installed in subframe front end;
Figure 13 is partial enlarged view in Figure 12;
Figure 14 is the structural representation of connecting cross beam on the right side of connecting cross beam and second on the right side of first in Figure 12;
Figure 15 is the structural representation of conventional water tank bracket assembly;
Figure 16 is the structural representation of tank bracket assembly in the present invention;
Figure 17 is the structural representation of tank bracket right-hand stringer in Figure 16;
Figure 18 is the schematic cross-section at D place in Figure 16;
Figure 19 is the structural representation of front side member assembly;
Figure 20 is the structural representation of front side member back shroud in Figure 19.
Piece mark explanation
1 tank bracket assembly
11 tank bracket entablatrances
12 tank bracket cross sills
13 tank bracket left-hand stringer
14 tank bracket right-hand stringer
15 strength beams
16 brace panels
2 front side member assemblies
The left web of 21 front side member
The right web of 22 front side member
23 front side member back shrouds
Crossbeam is installed in 3 subframe front ends
Connecting cross beam on the right side of in the of 31 first
Connecting cross beam on the right side of in the of 32 second
Connecting cross beam on the left of in the of 33 first
Connecting cross beam on the left of in the of 34 second
4 stage casing, front floor longerons
41 stage casing side rails
Inner panel in the middle of 42 stage casing longerons
43 stage casing girder plates
5 front floor back segment longerons
Crossbeam is installed on 6 front floors
61 first links
Floor installation assembly after 7
After 71, longeron is installed on floor
After 72, crossbeam is installed on floor
73 transverse and longitudinal beam links
Spare tyre pond, floor after 74
Floor after 75
8 sill strip connecting cross beams
9 centre gangways
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present invention and effect easily.The orientation all around related in the present invention is all using body in white as reference, and normal travel direction is front.
As shown in Figures 1 to 6, the invention provides a kind of body in white transverse and longitudinal beam Anti-bending structure, comprise tank bracket assembly 1, front side member assembly 2, crossbeam 3 is installed in subframe front end, centre gangway 9, stage casing, front floor longeron 4, front floor back segment longeron 5, sill strip connecting cross beam 8, crossbeam 6 and rear floor installation assembly 7 are installed in front floor, rear floor installation assembly 7 comprises rear floor and installs longeron 71, crossbeam 72 is installed on rear floor, spare tyre pond, rear floor 74 and rear floor 75, crossbeam 6 is installed while be connected by the first link 61 with front floor back segment longeron 5 in front floor, front floor is installed crossbeam 6 another side and is connected with rear floor 75, and front floor installation crossbeam 6 is vertical with the rear floor 75 of level, front floor installation crossbeam 6 and front end, rear floor 75 form the enclosed construction of variable section, shown in Fig. 5 and Fig. 6, the length that the closed region that crossbeam 6 is formed with the section A on the left of rear floor 75 is installed than front floor in the closed region that front floor installation crossbeam 6 and the cross section B in the middle of rear floor 75 are formed is long, width is little.The enclosed construction that front floor installation crossbeam 6 and front end, rear floor 75 form variable section plays crucial unbending.Crossbeam 6 structure is installed as shown in Figure 4 in front floor, and its variation in thickness can affect the corner frequency on whole front floor, and it is 0.7-1.6mm that crossbeam 6 thickness variable scope is installed on front floor.When one-tenth-value thickness 1/10 is 1.6mm, bending resistance effect can promote 2-2.3Hz.
As shown in Figure 8, first link 61 is semi-enclosed square box structure, this the first link 61 opening part stretches out, and this first link 61 front end is connected with back segment longeron 5 spot welding of front floor, and extension and the front floor at the first link 61 rear portion are installed crossbeam 6 edge and welded.
As shown in Figure 7 to 9, rear floor is installed longeron 71 and is connected by transverse and longitudinal beam link 73 with rear floor installation crossbeam 72, crossbeam 72 is installed on rear floor and crossbeam 6 is installed at a distance of 390mm in front floor, and the thickness that longeron 71 is installed on rear floor, crossbeam 72 and transverse and longitudinal beam link 73 are installed in rear floor is 0.8-1.0mm.Transverse and longitudinal beam link 73 one-tenth T-type structures, this transverse and longitudinal beam link 73 is buckled in rear floor and installs on longeron 71 and rear floor installation crossbeam 72, is connected by 2 or 3 layers of spot welding; It is key structures affect bending property that crossbeam 6 is installed on front floor, installs crossbeam 6 adopt and stitch the neat spot welding welding or increase area of contact and be connected because of after this floor installation longeron 71 and front floor.This structure installs longeron 71 on rear floor and crossbeam 72 is installed on rear floor, and between front floor installation crossbeam 6 and front floor back segment longeron 5, joint is strengthened processing, and strengthens its bending resistance effect.
As shown in Figure 10 and Figure 11, stage casing, front floor longeron 4 comprises inner panel 42 and stage casing girder plate 43 in the middle of stage casing side rail 41, stage casing longeron, in the middle of stage casing side rail 41, stage casing longeron, inner panel 42 and stage casing girder plate 43 weld the cross section, C place formed is enclosed construction, and comparatively conventional confguration anti-bending strength is good.
As shown in Figure 12 to Figure 14, subframe front end install crossbeam 3 comprise first on the right side of connecting cross beam 34 on the left of connecting cross beam 33 and second on the left of connecting cross beam 32, first on the right side of connecting cross beam 31, second; Stage casing, front floor longeron 4 is arranged in the downside of connecting cross beam 34 on the left of connecting cross beam on the right side of in the of second 32 and second, on the left of the side plate of stage casing, front floor longeron 4 and connecting cross beam on the right side of in the of first 31 and first, the side flanging spot welding of connecting cross beam 33 is connected, on the right side of in the of first on the right side of connecting cross beam 31, second on the left of connecting cross beam 32, first on the left of connecting cross beam 33 and second thickness of connecting cross beam 34 be 1.6-2.0mm.
Conventional water tank supporting structure as shown in figure 15, this tank bracket structural thickness is distributed as tank bracket entablatrance 11, tank bracket cross sill 12 thickness 1.2mm, tank bracket left-hand stringer 13 and tank bracket right-hand stringer 14 thickness 1.5mm, this kind of thickness distribution tank bracket has good load-bearing property and still lays particular stress on as the excitation end quality of body in white, can evoke overall mode of flexural vibration, its deadweight its anti-bending strength heavier is poor.As shown in Figure 16 to Figure 18, tank bracket assembly 1 of the present invention comprises tank bracket left-hand stringer 13, tank bracket entablatrance 11, tank bracket cross sill 12 and tank bracket right-hand stringer 14, strength beam 15 is provided with between tank bracket entablatrance 11 and tank bracket cross sill 12, for carrying the power of tank bracket entablatrance 11 and tank bracket cross sill 12, the wide 120mm in strength beam 15 upper end, the wide 80mm in lower end, tank bracket entablatrance 11 and tank bracket cross sill 12 thickness are 1.0mm, tank bracket left-hand stringer 13, the thickness of tank bracket right-hand stringer 14 and strength beam 15 is 0.8mm.Overall loss of weight 20%, promotes corner frequency 1-2Hz.
For increasing its structural stability and load-carrying capacity after tank bracket loss of weight, be respectively arranged with brace panel 16 bottom tank bracket left-hand stringer 13 and tank bracket right-hand stringer 14, this brace panel 16 and tank bracket left-hand stringer 13 and tank bracket right-hand stringer 14 form the closed region that a cross section is annular respectively.Strengthen local stability performance, its sectional position is as shown in dotted line in D place in Figure 16, and cross section as shown in figure 18.Bending resistance effect in section constitution closed region is better.
As illustrated in figures 19 and 20, front side member assembly 2 comprises the left web of front side member 21, the right web 22 of front side member and front side member back shroud 23, the left web of front side member 21 and the right web 22 of front side member form closed cavity, its cross section as shown in the figure, the thickness of the left web of front side member 21 and the right web 22 of front side member is 1.6mm, and the thickness of front side member back shroud 23 is 1.5-1.8mm.Front side member assembly 2 thickness distribution has good anti-bending strength and also possesses larger load simultaneously in this interval.
The present invention provides a kind of arrangement of body in white transverse and longitudinal beam simultaneously, comprise above-mentioned a kind of body in white transverse and longitudinal beam Anti-bending structure, tank bracket assembly 1 weight is 18.5-20kg, and wherein plastic cistern support gross weight is 5.6-8kg, and metal water tank weight support frame is about 13.5-18kg.The heavier mass that total quality is distributed as front side member assembly 2, crossbeam 3, rear floor installation assembly 7 are installed in subframe front end, front floor back segment longeron 5, front floor install the lighter weight of crossbeam 6 and centre gangway 9.Light and the weight average of quality needs to be regulated by component thickness, final formation tank bracket assembly 1 is light, the subframe of front side member assembly 2 and overlap joint installs crossbeam weight, stage casing, front floor longeron 4, crossbeam 6 weight is installed on front floor, and crossbeam 72 is installed on rear floor and the light total quality anti-bending strength of longeron 71 is installed on rear floor.
Tank bracket entablatrance 11 and tank bracket cross sill 12 thickness are 1.0mm, tank bracket left-hand stringer 13, strength beam 15 and tank bracket right-hand stringer 14 thickness are 0.8mm, it is 1.6mm that crossbeam 3 thickness is installed in subframe front end, stage casing, front floor longeron 4 thickness is 0.7-0.8mm, front floor installation crossbeam 6 overlaps the vehicle body left and right sides and has the effect suppressing tank bracket to bend excitation, THICKNESS CONTROL, at 0.7-1.6mm, can suitably increase reinforcement gusset according to concrete space.Longeron 71 is installed on rear floor and rear floor installation crossbeam 72 quality is not easily excessive, and THICKNESS CONTROL is at 0.7-0.8mm.
Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a body in white transverse and longitudinal beam Anti-bending structure, comprise tank bracket assembly, front side member assembly, crossbeam is installed in subframe front end, centre gangway, stage casing, front floor longeron, front floor back segment longeron, crossbeam and rear floor installation assembly are installed in front floor, described rear floor installation assembly comprises rear floor and installs longeron, crossbeam and rear floor are installed in rear floor, it is characterized in that: described front floor is installed crossbeam and is connected by the first link with front floor back segment longeron, front floor is installed crossbeam another side and is connected with rear floor, and the rear floor perpendicular of crossbeam and level is installed on described front floor, described front floor installation crossbeam and rear ground front edge of board form the enclosed construction of variable section, and the length that the closed region that the cross section on the left of crossbeam and rear floor is formed is installed than front floor in the closed region that described front floor installation crossbeam and the cross section in the middle of rear floor are formed is long, width is little.
2. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, it is characterized in that: described first link is semi-enclosed square structure, this the first link opening part stretches out, this the first link one end and front floor back segment longitudinal beam welding, the first link extension and front floor are installed crossbeam edge and are welded.
3. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, it is characterized in that: described rear floor is installed longeron and is connected by transverse and longitudinal beam link with rear floor installation crossbeam, crossbeam is installed on described rear floor and crossbeam is installed at a distance of 390mm in front floor, and the thickness that longeron is installed on described rear floor, crossbeam and transverse and longitudinal beam link are installed in rear floor is 0.8-1.0mm.
4. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 3, is characterized in that: described transverse and longitudinal beam link becomes T-type structure, and this transverse and longitudinal beam link is buckled in rear floor and installs on longeron and rear floor installation crossbeam, is connected by 2 or 3 layers of spot welding; Described rear floor is installed longeron and front floor and is installed crossbeam and adopt and stitch the neat spot welding welding or increase area of contact and be connected.
5. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, it is characterized in that: stage casing, described front floor longeron comprises inner panel and stage casing girder plate in the middle of stage casing side rail, stage casing longeron, the cross section that in the middle of described stage casing side rail, stage casing longeron, inner panel and the welding of stage casing girder plate are formed is enclosed construction.
6. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, is characterized in that: described subframe front end install crossbeam comprise first on the right side of connecting cross beam on the left of connecting cross beam and second on the left of connecting cross beam, first on the right side of connecting cross beam, second; Stage casing, described front floor longeron is arranged in the downside of connecting cross beam on the left of connecting cross beam and second on the right side of in the of second, the side plate of stage casing, described front floor longeron is connected with the side flanging spot welding of connecting cross beam on the left of connecting cross beam on the right side of in the of first and first, on the right side of in the of described first on the right side of connecting cross beam, second on the left of connecting cross beam, first on the left of connecting cross beam and second thickness of connecting cross beam be 1.6-2.0mm.
7. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, it is characterized in that: described tank bracket assembly comprises tank bracket left-hand stringer, tank bracket entablatrance, tank bracket cross sill and tank bracket right-hand stringer, strength beam is provided with between described tank bracket entablatrance and tank bracket cross sill, the wide 120mm in strength beam upper end, the wide 80mm in lower end, brace panel is respectively arranged with bottom described tank bracket left-hand stringer and tank bracket right-hand stringer, this brace panel and tank bracket left-hand stringer and tank bracket right-hand stringer form the closed region that a cross section is annular respectively.
8. a kind of body in white transverse and longitudinal beam Anti-bending structure according to claim 1, it is characterized in that: described front side member assembly comprises the left web of front side member, the right web of front side member and front side member back shroud, the left web of front side member and the right web of front side member form closed cavity, the thickness of the left web of front side member and the right web of front side member is 1.6mm, and the thickness of front side member back shroud is 1.5-1.8mm.
9. the arrangement of a body in white transverse and longitudinal beam, it is characterized in that: comprise a kind of body in white transverse and longitudinal beam Anti-bending structure described in claim 1 to 8 any one, described tank bracket assembly weight is 18.5-20kg, described front side member assembly weight is greater than the weight that crossbeam is installed in subframe front end, and the weight of described front floor back segment longeron and centre gangway is all less than the weight that crossbeam is installed in subframe front end.
10. the arrangement of a kind of body in white transverse and longitudinal beam according to claim 9, it is characterized in that: described tank bracket entablatrance and tank bracket cross sill thickness are 1.0mm, described tank bracket left-hand stringer, strength beam and tank bracket right-hand stringer thickness are 0.8mm, it is 1.6mm that beam thickness is installed in described subframe front end, stage casing, front floor longeron thickness is 0.7-0.8mm, the thickness that crossbeam is installed on described front floor is 0.7-1.6mm, and the thickness that longeron and rear floor installation crossbeam are installed in described rear floor is 0.8mm.
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| CN201510465080.2A CN105035170A (en) | 2015-07-31 | 2015-07-31 | White car body horizontal-longitudinal beam anti-bending structure and arrangement method |
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| CN201510465080.2A CN105035170A (en) | 2015-07-31 | 2015-07-31 | White car body horizontal-longitudinal beam anti-bending structure and arrangement method |
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Application publication date: 20151111 |
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| RJ01 | Rejection of invention patent application after publication |