CN106314540B - A kind of Integral frame structure - Google Patents

A kind of Integral frame structure Download PDF

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Publication number
CN106314540B
CN106314540B CN201510334629.4A CN201510334629A CN106314540B CN 106314540 B CN106314540 B CN 106314540B CN 201510334629 A CN201510334629 A CN 201510334629A CN 106314540 B CN106314540 B CN 106314540B
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China
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stringer
ontology
frame
longitudinal
tail
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CN106314540A (en
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唐春柳
瞿刚
欧阳洋
曾蔚
赖扬品
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SAIC GM Wuling Automobile Co Ltd
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SAIC GM Wuling Automobile Co Ltd
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Abstract

The invention discloses a kind of Integral frame structures, including front frame, middle carriage and rear frame, middle carriage height is lower than front frame and rear frame height, middle carriage is located at below body platform, front frame includes left front girder, front right longitudinal beam and front anti-collision beam, front end of the front anti-collision beam both ends respectively with left front girder and front right longitudinal beam is fixed, middle carriage includes stringer in left stringer and the right side, middle cross beam group is vertically equipped in left stringer and the right side between stringer, rear frame includes left rear longitudinal beam, right floor side member and tail end beam, rear end of the both ends of tail end beam respectively with left rear longitudinal beam and right floor side member is fixed, rear cross beam group is vertically equipped between left rear longitudinal beam and right floor side member, tail end stringer is equipped between rear cross beam group and tail end beam, the both ends of left stringer are fixed with left front girder and left rear longitudinal beam respectively, the both ends of stringer in the right side It is fixed respectively with front right longitudinal beam and right floor side member.Overall stiffness is improved, stability is strong, can quickly transmit impact force, and comfort is strong.

Description

A kind of Integral frame structure
Technical field
The present invention relates to the vehicle frame field of automobile, in particular to a kind of Integral frame structure.
Technical background
Currently, body frame structure for automotive is mainly made of stringer and crossbeam, to the weight that above carry entire upper vehicle body, to lower carrying Most chassis system, therefore, the structure of vehicle frame directly influences the performance of vehicle.And in the prior art, front and rear part Without complete body frame structure for automotive, poor dimensional stability, manufacture efficiency is low, and twisting property is poor;Moreover, front and back stringer does not overlap, it is disconnected The transmitting of opening structure, power is discontinuous, mutation easy to form, and load-carrying reliability is poor.
Summary of the invention
The present invention is to provide one kind in order to solve deficiency in the prior art and improve overall stiffness, stability is strong, energy Enough quickly transmitting impact forces, and the Integral frame structure that comfort is strong.
A kind of technical solution of Integral frame structure of the present invention is:
A kind of Integral frame structure, including front frame, middle carriage and rear frame, the middle carriage height are lower than The front frame and the rear frame height, the middle carriage are located at below body platform, and the front frame includes Left front girder, front right longitudinal beam and front anti-collision beam, the front anti-collision beam both ends are solid with the front end of left front girder and front right longitudinal beam respectively Fixed, the middle carriage includes stringer in left stringer and the right side, is vertically equipped between stringer in the left stringer and the right side Middle cross beam group, the rear frame include left rear longitudinal beam, right floor side member and tail end beam, the both ends of the tail end beam respectively with it is described The rear end of left rear longitudinal beam and the right floor side member is fixed, and rear cross beam is vertically equipped between the left rear longitudinal beam and the right floor side member Group, between the rear cross beam group and the tail end beam be equipped with tail end stringer, the both ends of the left stringer respectively with left front girder It is fixed with left rear longitudinal beam, the both ends of stringer are fixed with front right longitudinal beam and right floor side member respectively in the right side.
A kind of technical solution of Integral frame structure of the present invention may also is that
Partition and the first stiffening plate, the left stringer are equipped on the leading portion of stringer in the left stringer and the right side With it is described the right side in stringer middle section on be equipped with the second stiffening plate.
The leading portion of stringer and the top in middle section detain and are equipped with U-shaped cover board in the left stringer and the right side.
Wherein the middle cross beam group includes the first middle cross beam ontology, the second middle cross beam ontology, the third middle cross beam Ontology and the 4th middle cross beam ontology, the first middle cross beam ontology, the second middle cross beam ontology, the third middle cross beam Ontology and the 4th middle cross beam ontology are vertically set at equal intervals in the left stringer and the right side between stringer, described In left stringer and the right side stringer with it is horizontal in the first middle cross beam ontology, the second middle cross beam ontology, the third It is equipped with wall on the inside of the lap position of beam ontology and the 4th middle cross beam ontology and supports stiffening plate.
The first middle cross beam ontology, the second middle cross beam ontology, in the third middle cross beam ontology and the described 4th Middle cross beam stiffening plate is equipped on cross-beam body.
The rear cross beam group includes at least two rear cross beam ontologies, and it is vertical to be equipped with support between the adjacent rear cross beam ontology Beam, the tail end stringer are vertically set on the tail end beam and between the rear cross beam ontologies of the tail end beam.
The tail end stringer at least two, the tail end stringer spaced set.
The Guard Assy be it is arc-shaped, the both ends of the circular arc are fixed with the left front girder and front right longitudinal beam respectively, The Guard Assy surface is equipped with backward recessed, described recessed to be laterally extended along the Guard Assy.
The left stringer front end is fixed by laser welding and the left front girder, and stringer front end is by swashing in the right side Photocoagulation is fixed with the front right longitudinal beam.
The rear of the front anti-collision beam is equipped with lower camber beam.
A kind of Integral frame structure of the invention, including front frame, middle carriage and rear frame, the middle carriage Height is lower than the front frame and the rear frame height, and the middle carriage is located at below body platform, the front Vehicle frame includes left front girder, front right longitudinal beam and front anti-collision beam, the front anti-collision beam both ends respectively with left front girder and front right longitudinal beam Front end fix, the middle carriage includes stringer in left stringer and the right side, in the left stringer and the right side between stringer It is vertically equipped with middle cross beam group, the rear frame includes left rear longitudinal beam, right floor side member and tail end beam, the both ends point of the tail end beam Rear end not with the left rear longitudinal beam and the right floor side member is fixed, and is vertically set between the left rear longitudinal beam and the right floor side member Have rear cross beam group, between the rear cross beam group and the tail end beam be equipped with tail end stringer, the both ends of the left stringer respectively with Left front girder and left rear longitudinal beam are fixed, and the both ends of stringer are fixed with front right longitudinal beam and right floor side member respectively in the right side.In this way, logical The connection between front frame, middle carriage and rear frame is crossed, complete vehicle frame structure is constituted, is improved whole rigid Degree and intensity, and by central collision, side impact and after touch during, the impact force of collision can be along overall structure to unofficial biography It passs away, to have the function that the impact force for having decomposed the point of impingement.Under the operating condition of central collision, front anti-collision beam be collided power and will It is transmitted to left and right front longitudinal beam and continues to pass to left and right middle stringer, left and right floor side member and middle cross beam group backward.Impact force by Overall structure shared is dispersed to each stressed member of vehicle body connected to it, so that the deformation of entire crew module's frame It is controlled, to protect the safety of occupant.Under side impact operating condition, two sides are collided power, and disperse impact force forward, will Impact force passes to middle cross beam group, and middle cross beam group has shared suffered impact force, be delivered separately to be secured to it is left and right in Stringer, then left and right front longitudinal beam is passed ahead to by left and right middle stringer, and pass to left and right floor side member backward, and then pass through Overall structure shared impact force, reduces the momentum effect of side impact, guarantees the safety of occupant.It is touched after under operating condition, tail end Beam receives impact force, can be delivered separately to left and right floor side member and then pass to middle cross beam group again, then the transmitting of middle cross beam group It is passed ahead to left and right front longitudinal beam to left and right middle stringer, then by left and right middle stringer, or is continued to front transfer, and then pass through The active force of rear collision is dispersed and is shared by overall structure shared impact force, reduces momentum effect, guarantees occupant Safety.Also, middle carriage height is lower than the front frame and the rear frame, and the middle carriage is with being located at vehicle body Below plate, increases the space of occupant in height, improve occupant comfort.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of Integral frame structure of the present invention;
Fig. 2 is the enlarged drawing of stringer in a kind of left stringer of Integral frame structure of the present invention and the right side;
Fig. 3 is the cross-sectional view of slice location in a kind of Fig. 2 of Integral frame structure of the present invention;
Fig. 4 is a kind of front anti-collision beam schematic cross-section of Integral frame structure of the present invention;
Figure number explanation
It is indulged before 1 ... front frame 2 ... middle carriage 3 ... rear frame 4 ... front anti-collision beam 5 ... left front girder 6 ... is right The second middle cross beam ontology 9.3 ... third of the first middle cross beam of stringer 9.1 ... ontology 9.2 ... in left stringer 8 ... the right side of beam 7 ... Right floor side member 12 ... rear cross beam ontology 13 ... the tail of the 4th middle cross beam ontology 10 ... left rear longitudinal beam 11 ... of middle cross beam ontology 9.4 ... U-shaped the first stiffening plate of cover board 18 ... partition 19 ... of the lower camber beam 17 ... of end carriage 14 ... tail end stringer 15 ... support stringer 16 ... 20 ... second stiffening plates 21 ... recessed 22 ... floor
Specific embodiment
A kind of Integral frame structure of the invention is further described combined with specific embodiments below.
As shown in Figs 1-4, a kind of Integral frame structure, including front frame 1, middle carriage 2 and rear frame 3, it is described 2 height of middle carriage is located at body platform 22 lower than 3 height of the front frame 1 and the rear frame, the middle carriage 2 Lower section, the front frame 1 include left front girder 5, front right longitudinal beam 6 and front anti-collision beam 4,4 both ends of front anti-collision beam respectively with The front end of left front girder 5 and front right longitudinal beam 6 is fixed, and the middle carriage 2 includes stringer 8 in left stringer 7 and the right side, described left Middle cross beam group is vertically equipped in stringer 7 and the right side between stringer 8, the rear frame 3 includes left rear longitudinal beam 10, right floor side member 11 and tail end beam 13, the both ends of the tail end beam 13 are solid with the rear end of the left rear longitudinal beam 10 and the right floor side member 11 respectively It is fixed, rear cross beam group, the rear cross beam group and the tail end are vertically equipped between the left rear longitudinal beam 10 and the right floor side member 11 Tail end stringer 14 is equipped between beam 13, the both ends of the left stringer 7 are fixed with left front girder 5 and left rear longitudinal beam 10 respectively, institute The both ends for stating stringer 8 in the right side are fixed with front right longitudinal beam 6 and right floor side member 11 respectively.In this way, passing through front frame 1, middle carriage 2 Connection between rear frame 3 constitutes complete vehicle frame structure, improves whole stiffness and strength, and by To central collision, side impact and after touch during, the impact force of collision can pass outward along overall structure, with reach decompose The effect of the impact force of the point of impingement.Under the operating condition of central collision, front anti-collision beam 4 be collided power and be passed along it is left and right before it is vertical Beam simultaneously continues to pass to left and right middle stringer, left and right floor side member and middle cross beam group backward.Impact force is held jointly by overall structure Load, is dispersed to each stressed member of vehicle body connected to it, so that the deformation of entire crew module's frame is controlled, to protect The safety of occupant is protected.Under side impact operating condition, two sides are collided power, and disperse impact force forward, and impact force passed to Crossbeam group, middle cross beam group have shared suffered impact force, are delivered separately to the left and right middle stringer being secured to, then by left and right Middle stringer is passed ahead to left and right front longitudinal beam, and passes to left and right floor side member backward, and then is held jointly by overall structure Impact force is carried on a shoulder pole, the momentum effect of side impact is reduced, guarantees the safety of occupant.It being touched after under operating condition, tail end beam 13 receives impact force, It can be delivered separately to left and right floor side member and then pass to middle cross beam group again, then middle cross beam group is passed in left and right and indulged Beam, then left and right front longitudinal beam is passed ahead to by left and right middle stringer, or continue to front transfer, and then common by overall structure Impact force is undertaken, the active force of rear collision is dispersed and shared, momentum effect is reduced, guarantees the safety of occupant.Also, 2 height of middle carriage is lower than the front frame 1 and the rear frame 3, and the middle carriage 2 is located under body platform 22 Side increases the space of occupant in height, improves occupant comfort.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute It states in left stringer 7 and the right side and is equipped with partition 18 and the first stiffening plate 19, left 7 He of stringer on the leading portion of stringer 8 The second stiffening plate 20 is equipped on the middle section of stringer 8 in the right side.In this way, leading portion impact is big in collision process, rigid requirements Height, and the leading portion of stringer 8 is left and right middle stringer, partition, four layers of the first stiffening plate and floor in left stringer 7 and the right side Structure, middle section are the three-decker of left and right middle stringer, the second stiffening plate and floor, and back segment is the two of left and right middle stringer and floor Layer structure, layer gradually smoothly transits from four layers to three to two layers, preferably alleviates impact of the collision to car body, ensure that car multiplies The safety of visitor.Meanwhile multilayered structure is arranged in 22 lower section of floor, and the space of more big height is conceded for driver's cabin, improves driving and multiplies The comfort of member.Further preferred technical solution may is that the leading portion of stringer 8 in the left stringer 7 and the right side in The top of section, which is detained, is equipped with U-shaped cover board 17.In this way, the leading portion of stringer 8 and middle section region are closed chamber in left stringer 7 and the right side Body effectively improves the intensity of left and right middle stringer, ensure that the safety of position occupant.In addition, in the fabrication process can also Correcting is played to stringer 8 in left stringer 7 and the right side, improves manufacture dimensional accuracy.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute Stating middle cross beam group includes the first middle cross beam ontology 9.1, the second middle cross beam ontology 9.2, the third middle cross beam ontology 9.3 and the 4th middle cross beam ontology 9.4;The first middle cross beam ontology 9.1, the second middle cross beam ontology 9.2, described Three middle cross beam ontologies 9.3 and the 4th middle cross beam ontology 9.4 are vertically set on the left stringer 7 and the right side at equal intervals Between middle stringer 8, the left stringer 7 and it is described the right side in stringer 8 with the first middle cross beam ontology, second middle cross beam It is equipped with wall on the inside of the lap position of ontology, the third middle cross beam ontology and the 4th middle cross beam ontology and supports stiffening plate.In this way, The impact force of collision can be transmitted and be shared by multiple middle cross beam ontologies being uniformly arranged, and reduce momentum effect, be guaranteed The safety of occupant, meanwhile, the setting of wall support stiffening plate improves the structural strength at lap position.Further preferred technical side Case may is that the first middle cross beam ontology 9.1, the second middle cross beam ontology 9.2,9.3 and of third middle cross beam ontology Middle cross beam stiffening plate is equipped on the 4th middle cross beam ontology 9.4.In this way, vehicle body in the middle part of be located at the first middle cross beam ontology 9.1, It is at the position of the second middle cross beam ontology 9.2, the third middle cross beam ontology 9.3 and the 4th middle cross beam ontology 9.4 Weakness zone is easy to happen bending, and the setting of stiffening plate prevents the generation bent in collision process, while improving vehicle Bending resistance.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute Stating rear cross beam group includes at least two rear cross beam ontologies 12, is equipped with support stringer 15 between the adjacent rear cross beam ontology 12, The tail end stringer 14 is vertically set on the tail end beam 13 and between the rear cross beam ontology 12 of the tail end beam 13.This Sample, during touching after, collision impact can be transmitted and be shared by rear cross beam ontology 12, and centre passes through support stringer 15 setting improves the coupling stiffness between rear cross beam ontology 12, and then improves the resistance to collision, enhances to rear The protection of portion's automotive fuel oil system.Further preferred technical solution may is that the tail end stringer 14 at least two, described 14 spaced set of tail end stringer.In this way, 14 spacing of tail end stringer about in 220mm, equably touches impact force to entire vehicle by after Body spreads out, and enhances the protection to automotive fuel oil system.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute State Guard Assy be it is arc-shaped, the both ends of the circular arc are fixed with the left front girder 5 and front right longitudinal beam 6 respectively, anti-before described Lance surface is equipped with recessed 21 backward, and described recessed 21 are laterally extended along the Guard Assy.In this way, by head-on crash When, arc-shaped front anti-collision beam 4 can effectively disperse impact force along circular arc both ends, and be transmitted on left and right front longitudinal beam And effectively absorb impact energy.In addition, arc-shaped front anti-collision beam 4 can reserve bigger safe distance to engine, avoid Engine is directly threatened in head-on crash.It is logical that recessed the 21 of front anti-collision beam 4 can provide more transmission for energy transmission Road improves 4 resistance to deformation of front anti-collision beam and absorbs the ability of energy, and then improves the central collision performance of vehicle.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute It is fixed by laser welding and the left front girder 5 to state left 7 front end of stringer, 8 front end of stringer passes through laser welding in the right side It is fixed with the front right longitudinal beam 6.Because of the connecting portion and main impact energy of left and right middle stringer and left and right front longitudinal beam Energy-absorbing position is measured, in this way, solder joint failure bring risk when the two welding being reduced welding by laser, guarantees crew module's Safety.
Referring to attached drawing 1-4, a kind of Integral frame structure of the invention based on the above technical solution, may is that institute The rear for stating front anti-collision beam 4 is equipped with lower camber beam 16.In this way, the setting of lower camber beam 16 strengthens the structure of front frame 1, improve The rigidity of front frame 1 reduces the impact force of central collision.
It is above-mentioned that only one of present invention specific embodiment is illustrated, but can not be as protection model of the invention Enclose, it is all according to the present invention in design spirit made by equivalent change or modification, be deemed to fall protection of the invention Range.

Claims (9)

1. a kind of Integral frame structure, it is characterised in that: including front frame, middle carriage and rear frame, the middle vehicle Frame height is lower than the front frame and the rear frame height, and the middle carriage is located at below body platform, before described Portion's vehicle frame includes left front girder, front right longitudinal beam and front anti-collision beam, and the front anti-collision beam both ends are indulged with before left front girder and the right side respectively The front end of beam is fixed, the middle carriage include left stringer and the right side in stringer, the left stringer and it is described the right side in stringer it Between vertically be equipped with middle cross beam group, the rear frame includes left rear longitudinal beam, right floor side member and tail end beam, the both ends of the tail end beam The rear end with the left rear longitudinal beam and the right floor side member is fixed respectively, vertical between the left rear longitudinal beam and the right floor side member Equipped with rear cross beam group, tail end stringer is equipped between the rear cross beam group and the tail end beam, the both ends of the left stringer are distinguished It is fixed with left front girder and left rear longitudinal beam, the both ends of stringer are fixed with front right longitudinal beam and right floor side member respectively in the right side, described Partition and the first stiffening plate are equipped in left stringer and the right side on the leading portion of stringer, is indulged in the left stringer and the right side The second stiffening plate is equipped on the middle section of beam.
2. a kind of Integral frame structure according to claim 1, it is characterised in that: indulged in the left stringer and the right side The leading portion of beam and the top in middle section, which are detained, is equipped with U-shaped cover board.
3. a kind of Integral frame structure described in any one of -2 claims according to claim 1, it is characterised in that: in described Crossbeam group includes the first middle cross beam ontology, the second middle cross beam ontology, third middle cross beam ontology and the 4th middle cross beam ontology, and described the One middle cross beam ontology, the second middle cross beam ontology, the third middle cross beam ontology and the 4th middle cross beam ontology are equidistant Be vertically set in the left stringer and the right side between stringer, in the left stringer and the right side stringer with it is described First middle cross beam ontology, the second middle cross beam ontology, the third middle cross beam ontology and the 4th middle cross beam ontology are taken It connects and is equipped with wall support stiffening plate on the inside of position.
4. a kind of Integral frame structure according to claim 3, it is characterised in that: the first middle cross beam ontology, described Middle cross beam stiffening plate is equipped on second middle cross beam ontology, the third middle cross beam ontology and the 4th middle cross beam ontology.
5. a kind of Integral frame structure described in any one of -2 claims according to claim 1, it is characterised in that: after described Crossbeam group includes at least two rear cross beam ontologies, and support stringer is equipped between the adjacent rear cross beam ontology, and the tail end is vertical Beam is vertically set on the tail end beam and between the rear cross beam ontology of the tail end beam.
6. a kind of Integral frame structure according to claim 5, it is characterised in that: the tail end stringer at least two, The tail end stringer spaced set.
7. a kind of Integral frame structure described in any one of -2 claims according to claim 1, it is characterised in that: before described Crash bar be it is arc-shaped, the both ends of the circular arc are fixed with the left front girder and front right longitudinal beam respectively, the Guard Assy table Face is equipped with backward recessed, described recessed to be laterally extended along the Guard Assy.
8. a kind of Integral frame structure described in any one of -2 claims according to claim 1, it is characterised in that: the left side Middle stringer front end is fixed by laser welding and the left front girder, and stringer front end passes through laser welding and the right side in the right side Front longitudinal beam is fixed.
9. a kind of Integral frame structure described in any one of -2 claims according to claim 1, it is characterised in that: before described The rear of collision prevention girders is equipped with lower camber beam.
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CN109204523B (en) * 2017-06-30 2021-10-22 比亚迪股份有限公司 Vehicle body structure and vehicle

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