CN109204474A - A kind of automobile rear longitudinal girder assembly and automobile - Google Patents

A kind of automobile rear longitudinal girder assembly and automobile Download PDF

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Publication number
CN109204474A
CN109204474A CN201811330212.0A CN201811330212A CN109204474A CN 109204474 A CN109204474 A CN 109204474A CN 201811330212 A CN201811330212 A CN 201811330212A CN 109204474 A CN109204474 A CN 109204474A
Authority
CN
China
Prior art keywords
side member
floor side
interconnecting piece
floor
reinforcing rib
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811330212.0A
Other languages
Chinese (zh)
Inventor
张明珠
牛丽媛
李光玉
程云
张毅
胡光山
苏畅
苏一畅
熊建民
朱小镇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Zhongtai Automobile Manufacturing Co Ltd
Original Assignee
Zhejiang Zhongtai Automobile Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Zhongtai Automobile Manufacturing Co Ltd filed Critical Zhejiang Zhongtai Automobile Manufacturing Co Ltd
Priority to CN201811330212.0A priority Critical patent/CN109204474A/en
Publication of CN109204474A publication Critical patent/CN109204474A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D29/00Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded

Abstract

The invention discloses a kind of automobile rear longitudinal girder assemblies, including floor side member, floor side member is an integral molding structure, floor side member includes floor side member leading portion, floor side member middle section and floor side member back segment, floor side member middle section is arranged between floor side member leading portion and floor side member back segment, the end of floor side member leading portion is connect with front longitudinal beam, and the end of floor side member back segment is connect with rear crossbeam of protecting.Floor side member is integrally stepped, floor side member generally aluminium alloy casting and forming, and uses high-pressure casting technological forming.The inside of floor side member is equipped with reinforcing rib III, and reinforcing rib III is X-type or V-type, is connected to each other between reinforcing rib III and constitutes reticular structure, the setting of reinforcing rib III improves the structural strength of floor side member.Floor side member of the invention has many advantages, such as that light-weight, integration is high, installation accuracy is high, intensity is high, has a safety feature.Floor side member is an integral molding structure, and while reducing part dosage, can save the welding sequence between multiple parts, to improve the machining accuracy and assembly precision of part.

Description

A kind of automobile rear longitudinal girder assembly and automobile
Technical field
The invention belongs to technical field of automobile parts, are related to the Lightweight Technology of chassis runner, and in particular to a kind of vapour Vehicle floor side member assembly and automobile.
Background technique
Vehicle body floor side member plays important carrying and is absorbed in vehicle structure as one of body of a motor car key part Collision impact effect.Since floor side member overall structure is longer, floor side member leading portion and floor side member back segment two parts are generally divided into, due to Floor side member needs rationally to avoid and install with other components, therefore the global shape of floor side member is more complex, after common at present Stringer mostly uses steel stamping part to be welded, but this steel plate punched structure has the disadvantage that
1, the floor side member being made of multiple steel stamping parts need to increase welding sequence, reduce size installation accuracy, increase Bodywork gap brings resonance noise.
2, the floor side member being welded by multiple steel stamping parts, to realize with chassis and the isostructural connection of vehicle body, must The parts such as corresponding mounting plate, erection support must be cooperated, therefore the quantity of part increases, process increases, while being unfavorable for vehicle Loss of weight.
3, segmented floor side member need to additionally increase the connection process of floor side member leading portion and back segment, increase additional workload, together When it is unfavorable to integral strength.
Summary of the invention
For the deficiencies in the prior art, the purpose of the present invention is to provide a kind of automobile rear longitudinal girder assembly and vapour Vehicle, the automobile rear longitudinal girder assembly are an integral molding structure, are designed by integrated form, can effectively reduce periphery mating number of parts, The welding sequence between multiple parts is saved, to improve the machining accuracy and assembly precision of part.
To achieve the above object, the technical solution of the present invention is as follows: a kind of automobile rear longitudinal girder assembly, including floor side member, it is described Floor side member is an integral molding structure, and floor side member includes floor side member leading portion, floor side member middle section and floor side member back segment, in the floor side member Section is arranged between floor side member leading portion and floor side member back segment, and the end of floor side member leading portion is connect with front longitudinal beam, floor side member back segment End is connect with rear crossbeam of protecting.
Further, the floor side member is integrally stepped, floor side member generally aluminium alloy casting and forming, and uses high pressure Casting technique molding.
Further, the side of the floor side member leading portion is equipped with the interconnecting piece I for connecting with threshold side bar, vertical after described The other side of beam leading portion is equipped with the interconnecting piece II for connecting with rear floor front beam.
Further, the interconnecting piece I is U-shaped shell structure, and the interconnecting piece II is bending structure, interconnecting piece I and company Flange I is equipped in socket part II.
Further, the floor side member middle section is equipped with the rear spring fastening for shock mitigation system after installation chassis, described Spring fastening is groove structure afterwards, and the inside of groove structure is equipped with reinforcing rib I.
Further, the interconnecting piece III for connecting with rear floor middle and connection are additionally provided on the floor side member middle section Portion IV, the interconnecting piece III are the U-type groove structure extended to the side in floor side member middle section.
Further, the interconnecting piece IV is the shell structure to raise upward, the boundary of interconnecting piece IV and floor side member middle section Place is equipped with reinforcing rib II.
Further, the floor side member middle section is equipped with the mounting hole for connecting with chassis Rear secondary frame for vehicle, vertical after described Beam is cooperatively connected on the Rear secondary frame for vehicle of chassis by fastener and mounting hole.
Further, the floor side member is integrally integrally formed shell structure, and the inside of floor side member is equipped with reinforcing rib III, adds Strengthening tendons III are connect with the inner wall of floor side member, and reinforcing rib III is X-type or V-type, are connected to each other between reinforcing rib III and are constituted reticular structure.
The present invention also provides a kind of automobile, including vehicle body, the chassis of the vehicle body is indulged after being equipped with automobile as described above Beam assembly.
The advantages of using technical solution of the present invention are as follows:
1, floor side member of the invention is an integral structure by the segmentation structure simplification of conventional " leading portion+back segment ", is saved The connection process of floor side member leading portion and floor side member back segment reduces additional workload, while integral strength can be improved, floor side member one The components on periphery are integrated and integrally, can effectively reduce periphery mating number of parts 10~18 by forming structure, and realization subtracts Weigh 30~50%;Furthermore while floor side member reduces part dosage, the welding sequence between multiple parts can be saved, to improve The machining accuracy and assembly precision of part.
2, the stepped structure design of floor side member of the present invention, not only can make floor side member be bonded guarantee with chassis Rear secondary frame for vehicle The planarization that stringer is connect with chassis Rear secondary frame for vehicle can also facilitate the installation of floor side member Yu other components;Floor side member uses aluminium Alloy material is made, and can reduce the weight of this structural member, realizes lightweight purpose.
3, the setting of reinforcing rib improves the structural strength of floor side member, and floor side member of the invention is indulged afterwards in the prior art Beam is compared, and is had many advantages, such as that light-weight, integration is high, installation accuracy is high, intensity is high, is had a safety feature.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is the overall structure diagram of automobile rear longitudinal girder assembly of the present invention.
Fig. 2 is the top view of automobile rear longitudinal girder assembly of the present invention.
Fig. 3 is the bottom view of automobile rear longitudinal girder assembly of the present invention.
Label in above-mentioned figure is respectively as follows: 1, floor side member;11, reinforcing rib III;2, floor side member leading portion;3, floor side member middle section; 4, floor side member back segment.
Specific embodiment
In the present invention, it is to be understood that term " length ", " width ", "upper", "lower", "front", "rear", " left side ", " right side ", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " counterclockwise ", " axial direction ", " in-plane ", " week To " etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of describing this hair Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation Construction and operation, therefore be not considered as limiting the invention.
As shown in Figure 1, Figure 2 and Figure 3, a kind of automobile rear longitudinal girder assembly, including floor side member 1, floor side member 1 are integrally formed knot Structure, floor side member 1 include floor side member leading portion 2, floor side member middle section 3 and floor side member back segment 4, and floor side member middle section 3 is arranged before floor side member Between section 2 and floor side member back segment 4, the end of floor side member leading portion 2 is connect with front longitudinal beam, and the end of floor side member back segment 4 and rear guarantor are horizontal Beam connection.Floor side member 1 of the invention is an integral structure by the segmentation structure simplification of conventional " leading portion+back segment ", after saving The connection process of longitudinal beam front section and floor side member back segment reduces additional workload, while integral strength can be improved, and floor side member 1 is one The components on periphery are integrated and integrally, can effectively reduce periphery mating number of parts 10~18 by forming structure, and realization subtracts Weigh 30~50%;Furthermore while floor side member reduces part dosage, the welding sequence between multiple parts can be saved, to improve The machining accuracy and assembly precision of part.
Whole stepped, the generally aluminium alloy casting and forming of floor side member 1 of floor side member 1, and using high-pressure casting technique at Type.The design of the stepped structure of floor side member 1 can not only be such that floor side member 1 is bonded with chassis Rear secondary frame for vehicle and guarantee stringer 1 and chassis The planarization of Rear secondary frame for vehicle connection, can also facilitate the installation of floor side member 1 Yu other components;Floor side member 1 uses aluminum alloy materials It is made, can reduce the weight of this structural member, realize lightweight purpose.The whole shell structure that is integrally formed of floor side member 1, with tradition Steelwork is compared, and is had integrated effect, can be increased dimensional accuracy.The inside of floor side member 1 is equipped with reinforcing rib III 11, reinforcing rib III 11 connect with the inner wall of floor side member 1, and reinforcing rib III 11 is X-type or V-type, are connected to each other between reinforcing rib III 11 and constitute netted knot Structure, the setting of reinforcing rib III 11 improve the structural strength of floor side member 1.Floor side member 1 of the invention is indulged afterwards in the prior art Beam is compared, and is had many advantages, such as that light-weight, integration is high, installation accuracy is high, intensity is high, is had a safety feature.
The side of floor side member leading portion 2 is equipped with interconnecting piece I 21 for connecting with threshold side bar, floor side member leading portion 2 it is another Side is equipped with the interconnecting piece II 22 for connecting with rear floor front beam.Interconnecting piece I 21 is U-shaped shell structure, and interconnecting piece II 22 is Bending structure;To increase contact area when connection, flange I 211, interconnecting piece I are equipped on interconnecting piece I 21 and interconnecting piece II 22 21, interconnecting piece II 22 is an integral molding structure with floor side member leading portion 2.The side wall of floor side member leading portion 2 is equipped with through-hole 23, through-hole 23 For installing filling conduit siphunculus.
Floor side member middle section 3 is equipped with the rear spring fastening 31 for shock mitigation system after installation chassis, and rear spring fastening 31 is The inside of groove structure, groove structure is equipped with reinforcing rib I 311, and reinforcing rib I 311 is connect with the bottom of groove structure with side wall.Afterwards The interconnecting piece III 32 and interconnecting piece IV 33 for connecting with rear floor middle are additionally provided on stringer middle section 3, interconnecting piece III 32 is The U-type groove structure extended to the side in floor side member middle section 3;Interconnecting piece IV 33 is the shell structure to raise upward, interconnecting piece IV 33 Reinforcing rib II 331 is equipped with the intersection in floor side member middle section 3.Floor side member middle section 3 is equipped with for connecting with chassis Rear secondary frame for vehicle Mounting hole 34, floor side member 1 is cooperatively connected on the Rear secondary frame for vehicle of chassis by fastener and mounting hole 34.
In order to guarantee stickiness that floor side member is connect with other components and increase contact area, the two sides of floor side member back segment 4 It is equipped with flange II 41, the side of floor side member back segment 4 is connect with rear floor edge, the other side of floor side member back segment 4 and rear floor Rear cross beam connection.For the structural strength for increasing floor side member back segment 4, sunk structure is equipped in turn on the side wall of floor side member back segment 4 Form reinforcement structure.
The present invention also provides a kind of automobile, the chassis of vehicle body is indulged after being equipped with the automobile such as claim 1 to 9 any one Beam assembly.
The present invention is exemplarily described in conjunction with attached drawing above, it is clear that the present invention implements not by aforesaid way Limitation, as long as use technical solution of the present invention carry out various unsubstantialities improvement, or it is not improved will be of the invention Conception and technical scheme directly apply to other occasions, within the scope of the present invention.

Claims (10)

1. a kind of automobile rear longitudinal girder assembly, it is characterised in that: including floor side member (1), the floor side member (1) is integrally formed knot Structure, floor side member (1) include floor side member leading portion (2), floor side member middle section (3) and floor side member back segment (4), the floor side member middle section (3) It is arranged between floor side member leading portion (2) and floor side member back segment (4), the end of floor side member leading portion (2) is connect with front longitudinal beam, floor side member The end of back segment (4) is connect with rear crossbeam of protecting.
2. a kind of automobile rear longitudinal girder assembly as described in claim 1, it is characterised in that: the floor side member (1) is integrally in ladder Shape, floor side member (1) generally aluminium alloy casting and forming, and use high-pressure casting technological forming.
3. a kind of automobile rear longitudinal girder assembly as claimed in claim 2, it is characterised in that: the side of the floor side member leading portion (2) Equipped with the interconnecting piece I (21) for being connect with threshold side bar, the other side of the floor side member leading portion (2) be equipped with for rear floor The interconnecting piece II (22) of front beam connection.
4. a kind of automobile rear longitudinal girder assembly as claimed in claim 3, it is characterised in that: the interconnecting piece I (21) is U-shaped shell Structure, the interconnecting piece II (22) are bending structure, are equipped with flange I (211) on interconnecting piece I (21) and interconnecting piece II (22).
5. a kind of automobile rear longitudinal girder assembly as described in Claims 1-4 any one, it is characterised in that: in the floor side member Section (3) is equipped with the rear spring fastening (31) for shock mitigation system after installation chassis, and the rear spring fastening (31) is groove knot The inside of structure, groove structure is equipped with reinforcing rib I (311).
6. a kind of automobile rear longitudinal girder assembly as claimed in claim 5, it is characterised in that: also set on the floor side member middle section (3) There are the interconnecting piece III (32) and interconnecting piece IV (33) for connecting with rear floor middle, the interconnecting piece III (32) is to indulge backward The U-type groove structure that the side in beam middle section (3) extends.
7. a kind of automobile rear longitudinal girder assembly as claimed in claim 6, it is characterised in that: the interconnecting piece IV (33) is upward convex The shell structure risen, interconnecting piece IV (33) and the intersection of floor side member middle section (3) are equipped with reinforcing rib II (331).
8. a kind of automobile rear longitudinal girder assembly as claimed in claim 7, it is characterised in that: the floor side member middle section (3) is equipped with Mounting hole (34) for connecting with chassis Rear secondary frame for vehicle, the floor side member (1) are connected by fastener and mounting hole (34) cooperation It connects on the Rear secondary frame for vehicle of chassis.
9. a kind of automobile rear longitudinal girder assembly as claimed in claim 8, it is characterised in that: the floor side member (1) is integrally integrated Molded housing structure, the inside of floor side member (1) are equipped with reinforcing rib III (11), the inner wall company of reinforcing rib III (11) and floor side member (1) It connects, reinforcing rib III (11) is X-type or V-type, is connected to each other between reinforcing rib III (11) and constitutes reticular structure.
10. a kind of automobile, including vehicle body, it is characterised in that: the chassis of the vehicle body is equipped with as claim 1 to 9 is any one Automobile rear longitudinal girder assembly described in.
CN201811330212.0A 2018-11-09 2018-11-09 A kind of automobile rear longitudinal girder assembly and automobile Pending CN109204474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811330212.0A CN109204474A (en) 2018-11-09 2018-11-09 A kind of automobile rear longitudinal girder assembly and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811330212.0A CN109204474A (en) 2018-11-09 2018-11-09 A kind of automobile rear longitudinal girder assembly and automobile

Publications (1)

Publication Number Publication Date
CN109204474A true CN109204474A (en) 2019-01-15

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112874633A (en) * 2021-03-19 2021-06-01 重庆长安汽车股份有限公司 Rear frame connecting piece and mounting structure thereof
CN113771947A (en) * 2020-06-10 2021-12-10 广州汽车集团股份有限公司 Automobile rear longitudinal beam structure, assembly and automobile
CN113998006A (en) * 2021-11-29 2022-02-01 浙江吉利控股集团有限公司 Automobile front cross beam assembly and automobile

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CN207191168U (en) * 2017-09-27 2018-04-06 东风小康汽车有限公司重庆分公司 A kind of automobile rear longitudinal girder assembly structure
CN108045442A (en) * 2017-12-20 2018-05-18 广州汽车集团股份有限公司 Floor frame structure after a kind of vehicle body
CN208036448U (en) * 2018-04-20 2018-11-02 广州汽车集团股份有限公司 A kind of automobile rear floor frame
CN209241171U (en) * 2018-11-09 2019-08-13 浙江众泰汽车制造有限公司 A kind of automobile rear longitudinal girder assembly and automobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1840010A1 (en) * 2006-03-31 2007-10-03 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Support frame for a motor vehicle
CN101323320A (en) * 2008-06-03 2008-12-17 奇瑞汽车股份有限公司 Automobile lower body structure
CN201300891Y (en) * 2008-10-17 2009-09-02 奇瑞汽车股份有限公司 Automotive body structure
DE102010027718A1 (en) * 2010-07-20 2011-03-31 Daimler Ag Carrier arrangement for body of passenger car, has rear frame side member including frame side member part, which is designed as die-casting component and extends over partial length of rear frame side member
CN104340270A (en) * 2013-08-09 2015-02-11 现代自动车株式会社 Vehicle body having rear side members
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113771947A (en) * 2020-06-10 2021-12-10 广州汽车集团股份有限公司 Automobile rear longitudinal beam structure, assembly and automobile
CN112874633A (en) * 2021-03-19 2021-06-01 重庆长安汽车股份有限公司 Rear frame connecting piece and mounting structure thereof
CN113998006A (en) * 2021-11-29 2022-02-01 浙江吉利控股集团有限公司 Automobile front cross beam assembly and automobile

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