CN204998609U - Longeron assembly and car behind car - Google Patents

Longeron assembly and car behind car Download PDF

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Publication number
CN204998609U
CN204998609U CN201520733764.1U CN201520733764U CN204998609U CN 204998609 U CN204998609 U CN 204998609U CN 201520733764 U CN201520733764 U CN 201520733764U CN 204998609 U CN204998609 U CN 204998609U
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China
Prior art keywords
floor
reinforcement
brace panel
longeron
automobile
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CN201520733764.1U
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Chinese (zh)
Inventor
蒯振
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BAIC Motor Co Ltd
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BAIC Motor Co Ltd
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Abstract

The utility model provides a longeron assembly and car behind car. Wherein, longeron body after the longeron assembly includes behind the car, back longeron body includes back longeron anterior segment and back longeron back end that fixed connection is in the same place, the interior skin weld of back longeron body has the interior reinforcing plate of back longeron, just the reinforcing plate covers in the back longeron the junction of back longeron anterior segment and back longeron back end, laid a plurality of strengthening ribs in the back longeron on the reinforcing plate just correspond on the reinforcing plate in the back longeron the position department of the damping spring bedplate assembly on the back longeron back end welds has the preceding reinforcement of back longeron just correspond on the reinforcing plate in the back longeron the welding of the position of the bending segment of back longeron back end department has reinforcement behind the back longeron. The utility model provides a longeron assembly and car behind car, simple structure, welding process is simple, and the cost is lower.

Description

Automobile rear longitudinal girder assembly and automobile
Technical field
The utility model embodiment relates to the Design of Auto Parts, particularly relates to a kind of automobile rear longitudinal girder assembly and automobile.
Background technology
Current most manned vehicle is all body-chassis frame construction, and the vehicle frame supporting of body-chassis frame construction connects each parts of automobile, and bears the various load inside and outside from car.Vehicle frame is made up of longitudinal and cross beam usually, adopts riveted joint or welding that longitudinal and cross beam is connected into firm rigid frame.And improving constantly of requiring along with the legislative control on safety relevant to auto against, higher requirement be it is also proposed to the intensity of automobile longitudinal girder and anti-bending strength, especially need to ensure that longeron still has enough intensity and anti-bending strength when automobile high-speed collides.
In order to increase the structural strength of automobile longitudinal girder further, the scheme of current routine adopts at least three layers of U-shaped reinforcement similar with stringer shape to be superimposed, then be welded in the U-lag of longeron, thus, automobile longitudinal girder reinforcement thickness and the number of plies can be caused to increase, and multiple U-shaped reinforcement is superimposed and is welded in longeron groove, can increase welding process difficulty virtually.
Utility model content
The utility model provides a kind of automobile rear longitudinal girder assembly and automobile, in order to solve above-mentioned defect of the prior art, can meet the enough intensity of floor side member and anti-bending strength, and it is simple to have structure, the simple advantage of welding process.
The utility model provides a kind of automobile rear longitudinal girder assembly on the one hand, comprise floor side member body, described floor side member body comprises the floor side member leading portion and floor side member back segment that are fixed together, the inside face of described floor side member body is welded with brace panel in floor side member, and in described floor side member, brace panel covers the junction of described floor side member leading portion and floor side member back segment; In described floor side member, brace panel is laid with some reinforced ribs, the position of the damping spring seat board assembly in the rear in longeron on brace panel and on corresponding described floor side member back segment is welded with reinforcement before floor side member, and in longeron, on brace panel and the position of the bending segment of corresponding described floor side member back segment is welded with reinforcement after floor side member in the rear.
Further, after reinforcement and floor side member, reinforcement all offers for the outage for electrophoresis liquid flowing before brace panel, floor side member in described floor side member.
Further, after reinforcement and floor side member, reinforcement all offers welding jig knock hole before brace panel, floor side member in described floor side member.
Further, before described floor side member, each edge of reinforcement is all formed with multiple first flange, and multiple first flange is used for fitting with brace panel in floor side member body and floor side member respectively and welds.
Further, after described floor side member, the edge of reinforcement is formed with multiple second flange, and multiple second flange is used for fitting with brace panel in floor side member body and floor side member respectively and welds.
Further, before described floor side member, after reinforcement and described floor side member, reinforcement all takes the shape of the letter U, and before described floor side member after reinforcement and floor side member the end face of reinforcement and the inside bottom surface of described floor side member body there is the first preset pitch and the second preset pitch respectively.
Further, after reinforcement and floor side member, reinforcement is equipped with reinforced rib before described floor side member.
Further, in described floor side member, brace panel is platy structure, and laminating is welded in the inside bottom surface of described floor side member body.
Further, the reinforced rib in described floor side member on brace panel is the strip reinforced rib of continuous bend; Or the reinforced rib in described floor side member on brace panel is netted reinforcing rib.
The utility model provides a kind of automobile on the other hand, comprises vehicle body, is provided with automobile rear longitudinal girder assembly as above below described vehicle body.
The automobile rear longitudinal girder assembly that the utility model provides and automobile, due to the inside face by the floor side member brace panel being laid with some reinforced ribs being welded on floor side member body, and cover the junction of floor side member leading portion and floor side member back segment, to improve Joint strenght and the resistance to bending at this place, the loading force of the damping spring seat board place carrying on floor side member back segment is comparatively large and loading force changes impact greatly, therefore, reinforcement before the position welding floor side member of the damping spring seat board assembly in floor side member on brace panel and on corresponding floor side member back segment, to improve strength and stiffness herein, and be conducive to the transmission of loading force herein, the stressed bang path direction of bending section of floor side member back segment changes, stress is easily caused to concentrate, therefore in floor side member on brace panel and the position of the bending segment of corresponding floor side member back segment welding floor side member after reinforcement, to improve intensity and anti-bending strength herein, the automobile rear longitudinal girder that the technical program provides and automobile, arrange brace panel or reinforcement by three key position places only at floor side member body, and structure is simple, and welding process difficulty is little, and can meet the intensity of floor side member, rigidity and anti-bending strength.
Accompanying drawing explanation
The front view of the automobile rear longitudinal girder assembly that Fig. 1 provides for the utility model one embodiment;
The birds-eye view of the automobile rear longitudinal girder assembly that Fig. 2 provides for the utility model one embodiment;
Fig. 3 is the structural representation one of reinforcement before floor side member in Fig. 2;
Fig. 4 is the structural representation two of reinforcement before floor side member in Fig. 2;
Fig. 5 is the structural representation one of reinforcement after floor side member in Fig. 2;
Fig. 6 is the structural representation two of reinforcement after floor side member in Fig. 2;
Fig. 7 is the structural representation of brace panel in floor side member in Fig. 2.
Reference numeral:
1-floor side member body; Brace panel in 2-floor side member; 3-damping spring seat board assembly;
Reinforcement before 4-floor side member; Reinforcement after 5-floor side member; 6-outage;
7-welding jig knock hole; 8-first flange; 9-second flange;
11-floor side member leading portion; 12-floor side member back segment; 21-reinforced rib.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The front view of the automobile rear longitudinal girder assembly that Fig. 1 provides for the utility model one embodiment; The birds-eye view of the automobile rear longitudinal girder assembly that Fig. 2 provides for the utility model one embodiment; Fig. 7 is the structural representation of brace panel in floor side member in Fig. 2.Please refer to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 7.
The automobile rear longitudinal girder assembly that the present embodiment provides comprises floor side member body 1, and floor side member body 1 comprises the floor side member leading portion 11 and floor side member back segment 12 that are fixed together, the inside face of floor side member body 1 is welded with brace panel 2 in floor side member, and in floor side member, brace panel 2 covers the junction of floor side member leading portion 11 and floor side member back segment 12; Brace panel 2 is laid with some reinforced ribs 21 in floor side member, the position of the damping spring seat board assembly 3 in floor side member on brace panel 2 and on corresponding floor side member back segment 12 is welded with reinforcement 4 before floor side member, and in floor side member, on the brace panel 2 and position of the bending segment of corresponding floor side member back segment 12 is welded with reinforcement 5 after floor side member.
In floor side member body 1, floor side member, brace panel 2, floor side member leading portion 11 and floor side member back segment 12 all can adopt punching press or flow forming, and its forming process is simple, and stock utilization is higher.
As a rule, floor side member leading portion 11 can be rectilinear structure, and floor side member back segment 12 can be Curved structure, whole automobile rear longitudinal girder assembly can adopt low-carbon alloy structural steel to make, good plasticity, toughness, weldability and good resistance to abrasion and corrosion stability.Leading portion and the rear section structure of floor side member differ greatly, therefore, floor side member body 1 is divided into floor side member leading portion 11 and floor side member back segment 12, because two sections can be shaping respectively, and both can be fixed together by the form of welding or riveting, floor side member body 1 is divided into two sections, and the structure of the floor side member of one-part form of the prior art, when it is shaped, steel blank carries out deep-drawing in very long region, the Flowing Hard of material is to control, and easily produce drawing crack, the defect such as wrinkling, formability is poor.Therefore, the floor side member of the present embodiment is two sectional type structure, be conducive to reducing shaping technology difficulty, for ensureing Joint strenght and the resistance to bending of floor side member leading portion 11 and floor side member back segment 12, in floor side member, brace panel 2 at least should cover the junction of floor side member leading portion 11 and floor side member back segment 12.
The shape of the reinforced rib 21 in floor side member on brace panel 2 can be multiple, and preferably, the reinforced rib 21 in floor side member on brace panel 2 is the strip reinforced rib of continuous bend; Or the reinforced rib 21 in floor side member on brace panel 2 is netted reinforcing rib.Strip or netted reinforced rib 21 can be laid in floor side member on brace panel 2, can improve the strength and stiffness of brace panel 2 in floor side member on a large scale, and then improve the strength and stiffness of whole floor side member.
The bending segment of floor side member back segment 12 refers to, floor side member back segment 12 can install groove by the spare tyre at floor place after vehicle body, and be ensure that floor side member back segment 12 can be fitted with floor after vehicle body to link together, therefore, accordingly, the corresponding position of floor side member back segment 12 can make formation bending segment, and this bending segment and spare tyre are installed groove and fitted.
The automobile rear longitudinal girder assembly that the present embodiment provides, by the floor side member brace panel being laid with some reinforced ribs being welded on the inside face of floor side member body, and cover the junction of floor side member leading portion and floor side member back segment, Joint strenght and the resistance to bending at this place can be improved, and mainly play the effect to vehicle body damping due to the damping spring seat board assembly on floor side member back segment, therefore, the loading force of this place carrying is comparatively large and loading force change is frequent, impact larger, therefore, the position of the damping spring seat board assembly in floor side member on brace panel and on corresponding floor side member back segment is by reinforcement before welding floor side member, to improve strength and stiffness herein, and because the loading force of the position at damping spring seat board assembly is larger, and owing to adding reinforcement before floor side member herein, the loading force of damping spring seat board assembly can be delivered to after floor side member body again to reinforcement transmission before floor side member, namely transmission and the dispersion of loading force is herein conducive to, the stressed bang path direction of bending section of floor side member back segment changes, stress is easily caused to concentrate, therefore in floor side member on brace panel and the position of the bending segment of corresponding floor side member back segment welding floor side member after reinforcement, intensity and anti-bending strength herein can be improved, the automobile rear longitudinal girder that the technical program provides and automobile, by three key position places only at floor side member body, brace panel or reinforcement are set, structure is simple, by brace panel in the floor side member that is laid with some reinforced ribs, good booster action is served to floor side member body, do not need the thickness increasing floor side member in unnecessary position again, therefore cost is also lower, thus welding process difficulty is little, and through overtesting, the floor side member assembly that the technical program provides can meet the intensity of floor side member, rigidity and anti-bending strength.
Fig. 3 is the structural representation one of reinforcement before floor side member in Fig. 2; Fig. 4 is the structural representation two of reinforcement before floor side member in Fig. 2; Fig. 5 is the structural representation one of reinforcement after floor side member in Fig. 2; Fig. 6 is the structural representation two of reinforcement after floor side member in Fig. 2; As shown in Fig. 2 ~ Fig. 6, after reinforcement 4 and floor side member, reinforcement 5 all offers for the outage 6 for electrophoresis liquid flowing before brace panel 2, floor side member in floor side member.In auto body forming process, generally can through the technological process of electrophoretic painting, if and will weld again after each parts application or be riveted together, then may destroy original coating in welding or riveted joint place, easily there is phenomenons such as getting rusty in the place of damaging, therefore, in general technology, first each parts of vehicle body are linked together, and then entirety carries out electrophoretic painting, and need to be welded to floor side member body 1 due to brace panel in floor side member in the present embodiment 2, and before floor side member after reinforcement 4 and floor side member reinforcement 5 all to need to be welded in floor side member on brace panel 2, after preventing welding, closed cavity is formed between each parts, and cause electrophoresis liquid cannot smooth flow to the inside face of parts, therefore, by offering outage 6, inside face can be flow to from the outside face of automobile rear longitudinal girder assembly to make electrophoresis liquid, liquid abundant feed liquor leakage during guarantee application, facilitate the electrophoretic painting of whole floor side member.
It should be noted that, quantity and position the present embodiment of outage 6 do not do concrete restriction, and designer can according to the planform specific design of floor side member.
Further, after reinforcement 4 and floor side member, reinforcement 5 all offers welding jig knock hole 7 before brace panel 2, floor side member in floor side member.When brace panel in floor side member 2 is welded on floor side member body 1, and by when after reinforcement before floor side member 4 and floor side member, reinforcement 5 is welded to brace panel 2 in floor side member, for ensureing the accuracy of position of weld, welding jig generally can be used to position soldered part, and in floor side member brace panel 2, after reinforcement 4 and floor side member, reinforcement 5 offers welding jig knock hole 7 before floor side member, be conducive to welding jig to brace panel in floor side member 2, reinforcement 5 location before welding after reinforcement 4 and floor side member before floor side member, be conducive to the dimensional accuracy after ensureing welding and positional precision.
One of ordinary skill in the art will appreciate that the outage 6 that above-described embodiment provides and welding jig knock hole 7 can also play the effect of loss of weight, make automobile rear longitudinal girder assembly meet weight-saving requirement.
As shown in Figure 3 and Figure 4, further, before floor side member, each edge of reinforcement 4 is all formed with multiple first flange 8, and multiple first flange 8 welds for fitting with brace panel in floor side member body 1 and floor side member 2 respectively.By the first flange 8 arrange can ensure this floor side member before reinforcement 4 with brace panel 2 in floor side member body 1 and floor side member, there is larger contact area, both rigidity and the load-carrying capacity of automobile rear longitudinal girder assembly can have been improved, can make again when automobile is collided, colliding forces transmits smoothly between cross sill and rear floor, to improve vehicle body bulk strength.
Accordingly, after floor side member, the edge of reinforcement 5 also can be formed with multiple second flange 9, and multiple second flange 9 welds for fitting with brace panel in floor side member body 1 and floor side member 2 respectively.Its principle is identical with the first flange 8 with function, does not repeat them here.
In addition, as shown in Fig. 3 ~ Fig. 6, preferably, before floor side member, after reinforcement 4 and floor side member, reinforcement 5 can all take the shape of the letter U, and before floor side member after reinforcement 4 and floor side member the end face of reinforcement 5 and the inside bottom surface of floor side member body 1 there is the first preset pitch and the second preset pitch respectively.Before floor side member, after reinforcement 4 and floor side member, the concrete shape of reinforcement 5 can be arranged on the planform of the corresponding position of floor side member body 1 according to it and set, before adopting the floor side member of U-shaped structure, after reinforcement 4 and floor side member, reinforcement 5 can have default spacing from the inside bottom surface of floor side member body 1, thus can cavity be surrounded between reinforcement 5 and floor side member body 1 after reinforcement 4 and floor side member before making the floor side member after welding, due to the existence of the first preset pitch and the second preset pitch, protruding shape is made by the shape of reinforcement 5 after reinforcement before floor side member 4 and floor side member, and then make the cross-sectional area of this cavity larger, be conducive to when automobile collides, dissolve local collision power, be conducive to automotive safety.
Certainly, as shown in Fig. 3 ~ Fig. 6, before floor side member, after reinforcement 4 and floor side member, reinforcement 5 can also arrange reinforced rib.To improve the intensity of reinforcement 5 after reinforcement 4 and floor side member before floor side member itself further, strengthen its intensity, rigidity and anti-bending strength at the crucial stress point of floor side member body 1 and point of connection place.
Further, in floor side member, brace panel 2 can be platy structure, and laminating is welded in the inside bottom surface of floor side member body 1.Because brace panel in floor side member 2 itself has some reinforced ribs 21, its strength and stiffness can meet the demands, thus do not need to carry out welding or riveting with the inner side surface of floor side member body 1 again, to reduce welding process difficulty further, and reduce cost further.
The present embodiment also provides a kind of automobile, comprises vehicle body, is provided with the automobile rear longitudinal girder assembly as above-described embodiment provides below vehicle body.In the present embodiment, the 26S Proteasome Structure and Function of automobile rear longitudinal girder assembly and the identical of above-described embodiment, repeat no more herein.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.

Claims (10)

1. an automobile rear longitudinal girder assembly, comprise floor side member body, it is characterized in that, described floor side member body comprises the floor side member leading portion and floor side member back segment that are fixed together, the inside face of described floor side member body is welded with brace panel in floor side member, and in described floor side member, brace panel covers the junction of described floor side member leading portion and floor side member back segment; In described floor side member, brace panel is laid with some reinforced ribs, the position of the damping spring seat board assembly in the rear in longeron on brace panel and on corresponding described floor side member back segment is welded with reinforcement before floor side member, and in longeron, on brace panel and the position of the bending segment of corresponding described floor side member back segment is welded with reinforcement after floor side member in the rear.
2. automobile rear longitudinal girder assembly according to claim 1, is characterized in that, after reinforcement and floor side member, reinforcement all offers for the outage for electrophoresis liquid flowing in described floor side member before brace panel, floor side member.
3. automobile rear longitudinal girder assembly according to claim 1, is characterized in that, after reinforcement and floor side member, reinforcement all offers welding jig knock hole in described floor side member before brace panel, floor side member.
4. the automobile rear longitudinal girder assembly according to any one of claims 1 to 3, it is characterized in that, before described floor side member, each edge of reinforcement is all formed with multiple first flange, and multiple first flange is used for fitting with brace panel in floor side member body and floor side member respectively and welds.
5. the automobile rear longitudinal girder assembly according to any one of claims 1 to 3, is characterized in that, after described floor side member, the edge of reinforcement is formed with multiple second flange, and multiple second flange is used for fitting with brace panel in floor side member body and floor side member respectively and welds.
6. the automobile rear longitudinal girder assembly according to any one of claims 1 to 3, it is characterized in that, before described floor side member, after reinforcement and described floor side member, reinforcement all takes the shape of the letter U, and before described floor side member after reinforcement and floor side member the end face of reinforcement and the inside bottom surface of described floor side member body there is the first preset pitch and the second preset pitch respectively.
7. the automobile rear longitudinal girder assembly according to any one of claims 1 to 3, is characterized in that, after reinforcement and floor side member, reinforcement is equipped with reinforced rib before described floor side member.
8. automobile rear longitudinal girder assembly according to claim 1, is characterized in that, in described floor side member, brace panel is platy structure, and laminating is welded in the inside bottom surface of described floor side member body.
9. automobile rear longitudinal girder assembly according to claim 1, is characterized in that, the reinforced rib in described floor side member on brace panel is the strip reinforced rib of continuous bend; Or the reinforced rib in described floor side member on brace panel is netted reinforcing rib.
10. an automobile, comprises vehicle body, it is characterized in that, is provided with the automobile rear longitudinal girder assembly as described in any one of claim 1 ~ 9 below described vehicle body.
CN201520733764.1U 2015-09-21 2015-09-21 Longeron assembly and car behind car Active CN204998609U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105774915A (en) * 2016-05-23 2016-07-20 重庆长安汽车股份有限公司 Rear floor beam assembly and connecting structure thereof with rear floor and rear wheel bulge
WO2018184315A1 (en) * 2017-04-07 2018-10-11 上海蔚来汽车有限公司 Rear longitudinal beam reinforcement, rear longitudinal beam, rear anti-collision beam, vehicle body structure and vehicle
WO2019001496A1 (en) * 2017-06-30 2019-01-03 比亚迪股份有限公司 Vehicle-body crossbeam and vehicle body
CN109204479A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN109204463A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN111391923A (en) * 2020-04-02 2020-07-10 宁波吉利汽车研究开发有限公司 Rear longitudinal beam assembly for vehicle and design method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105774915A (en) * 2016-05-23 2016-07-20 重庆长安汽车股份有限公司 Rear floor beam assembly and connecting structure thereof with rear floor and rear wheel bulge
CN105774915B (en) * 2016-05-23 2017-12-29 重庆长安汽车股份有限公司 Afterwards joist assembly and its with rear floor, the attachment structure of trailing wheel bulge
WO2018184315A1 (en) * 2017-04-07 2018-10-11 上海蔚来汽车有限公司 Rear longitudinal beam reinforcement, rear longitudinal beam, rear anti-collision beam, vehicle body structure and vehicle
WO2019001496A1 (en) * 2017-06-30 2019-01-03 比亚迪股份有限公司 Vehicle-body crossbeam and vehicle body
CN109204479A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN109204507A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Vehicle body crossbeam and vehicle
CN109204463A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Body structure and vehicle
CN111391923A (en) * 2020-04-02 2020-07-10 宁波吉利汽车研究开发有限公司 Rear longitudinal beam assembly for vehicle and design method thereof

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