CN203199028U - Sub-frame rear cross beam structure of automobile and automobile - Google Patents

Sub-frame rear cross beam structure of automobile and automobile Download PDF

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Publication number
CN203199028U
CN203199028U CN 201320165758 CN201320165758U CN203199028U CN 203199028 U CN203199028 U CN 203199028U CN 201320165758 CN201320165758 CN 201320165758 CN 201320165758 U CN201320165758 U CN 201320165758U CN 203199028 U CN203199028 U CN 203199028U
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China
Prior art keywords
plate
subframe
automobile
mounting
mounting hole
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CN 201320165758
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Chinese (zh)
Inventor
黄黎
张立玲
魏洪革
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BAIC Motor Co Ltd
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BAIC Motor Co Ltd
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Priority to CN 201320165758 priority Critical patent/CN203199028U/en
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Abstract

The utility model provides a sub-frame rear cross beam structure of an automobile and the automobile, aiming at solving the problem that a rear suspended bracket is required to be arranged above a sub-frame rear cross beam existing in the prior art. The upper surface and the side face of a sub-frame rear cross beam upper plate are planes; the upper surface of the rear cross beam is provided with mounting holes which are matched with a rear suspended bracket; bushings are arranged on a rear cross beam lower plate which is matched with the upper plate; a rear cross beam suspended bracket base plate with mounting holes is arranged below the upper surface of the upper plate; nuts are welded at the mounting holes of the suspended bracket base plate; and the bushings and the mounting holes of the suspended bracket base plate correspond to the mounting holes of the upper surface. Since the designed rear cross beam upper surface is matched with the rear suspended bracket, the arrangement of the rear suspended bracket above the sub-frame rear cross beam is guaranteed.

Description

A kind of rear cross beam of subframe structure and automobile of automobile
Technical field
The utility model relates to automobile technical field, refers to especially a kind of rear cross beam of subframe structure and automobile of automobile.
Background technology
Concerning the car of engine behind front wheel, subframe is not only connecting vehicle body and suspension, but also is supporting the suspension system of driving engine, is most important load assembly in the chassis system.After cross member is connecting the left and right sides girder of subframe, and rear suspension support for engine is installed on the after cross member.Therefore, after cross member will bear on the one hand suspension system and act on application force on the subframe, is also bearing Engine Mounting System and is acting on application force on the mounting bracket.Concerning the subframe of engine behind front wheel, rear cross beam of subframe will satisfy following performance requriements: from suspension system, rear cross beam of subframe need to satisfy the requirement of intensity aspect, rear cross beam of subframe will bear automobile in the process of moving, because accelerating, brake, climb, turn to be delivered to various complex road surfaces the load of rear cross beam of subframe.The driven force suspension system, rear cross beam of subframe need to satisfy the requirement of intensity aspect: back suspension device of engine support processed is installed on the rear cross beam of subframe, to play a supporting role to Engine Mounting System, with the power output that guarantees that driving engine can both be stable under any operating mode; Like this, rear cross beam of subframe on the one hand will bear various complex road surfaces and the impact load of the Engine Mounting System that causes, and on the other hand, rear cross beam of subframe also will bear the support reaction that driving engine produces after cross member because of output torque.The requirement of rear cross beam of subframe rigidity aspect, after cross member is supporting back suspension device of engine, make the stability of engine power output, and the change in displacement that will guarantee rear-suspending center-point when being subject to larger load is difficult for excessive, and after cross member will have enough rigidity.Rear cross beam of subframe also will satisfy the requirement of durability aspect, and in the life cycle of car load, the work that rear cross beam of subframe can both be stable can not produce destruction.
As shown in Figure 1, traditional subframe rear suspension bracket 23 is positioned at the bottom of after cross member, in order to mate a new work engine, needs according to rear suspension support for engine 23 arrangement space and raising engine mounting performance, the rear suspension bracket 23 that is positioned at traditional rear cross beam of subframe 21 belows to be arranged into rear cross beam of subframe 21 tops, will change like this structure of traditional rear cross beam of subframe, rear suspension support for engine can be installed in the top of rear cross beam of subframe, and make it satisfy the requirement of intensity, rigidity and durability aspect.
This shows in the prior art to exist, rear suspension bracket need to be arranged into the problem of rear cross beam of subframe top.
The utility model content
The purpose of this utility model need to be arranged into rear suspension bracket the problem of rear cross beam of subframe top for existing in the prior art, and a kind of rear cross beam of subframe structure and automobile of automobile is provided.
The utility model embodiment provides a kind of rear cross beam of subframe structure of automobile, the upper surface of rear cross beam of subframe upper plate and side are the plane, the after cross member upper surface is provided with the mounting hole that cooperates with rear suspension bracket, with be provided with sleeve pipe on the after cross member lower plate that the after cross member upper plate matches, the upper surface of after cross member upper plate is provided with the after cross member mounting bracket backing plate with mounting hole, the mounting hole place of mounting bracket backing plate is welded with nut, the mounting hole of sleeve pipe and mounting bracket backing plate, corresponding with the mounting hole of the upper surface of after cross member upper plate.
Further, described rear cross beam of subframe structure also comprises the brace panel of playing a supporting role between after cross member upper plate and after cross member lower plate.
Further, have three slotted eyes on the after cross member upper plate, brace panel is with the flange that matches with three slotted eyes, and three slotted eyes of after cross member upper plate are connected flange and are connected by plug welding with brace panel.
Further, the after cross member lower plate is connected the seam weldering and is connected with brace panel, and weld nugget is positioned at upper surface and the side of after cross member lower plate.
Further, the mounting bracket welding with backing is connected on the after cross member upper plate, and the mounting hole quantity of mounting bracket backing plate is two.
Further, Socket welding is connected on the after cross member lower plate, and quantity is two.
Further, the rear cross beam of subframe upper plate is connected seam weldering connection with the after cross member lower plate.
The utility model embodiment also provides a kind of automobile, is provided with the as the aforementioned rear cross beam of subframe structure of automobile on the body of automobile.
Because the rear cross beam of subframe structure of automobile cooperates with rear suspension bracket by new design after cross member upper surface, guaranteed that rear suspension bracket can be arranged into the rear cross beam of subframe top.
Description of drawings
Fig. 1 represents the constructional drawing of rear cross beam of subframe structure of the automobile of prior art;
Fig. 2 represents that the rear cross beam of subframe structure of the automobile that the utility model provides is at the constructional drawing of first direction;
Fig. 3 represents that the rear cross beam of subframe structure of the automobile that the utility model provides is at the constructional drawing of second direction;
Fig. 4 represents the brace panel constructional drawing that the utility model provides.
The specific embodiment
For technical matters, technical scheme and advantage that embodiment of the present utility model will be solved is clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The rear cross beam of subframe structure of the automobile that the utility model provides mainly comprises after cross member upper plate 2, after cross member brace panel 3, the after cross member lower plate 4 of subframe as shown in Figures 2 and 3.
For solving traditional rear cross beam of subframe driving engine rear suspension rack arrangement space, improve the performance of engine mounting, the rear suspension bracket 23 that need to will be positioned at traditional rear cross beam of subframe below is arranged into the top of rear cross beam of subframe, so just need the structure of change rear cross beam of subframe, and make rear suspension bracket can satisfy the requirement of intensity, rigidity and reliable durable aspect.The concrete technical scheme that the utility model adopts is:
Rear cross beam of subframe upper plate 2 is on the basis of traditional rear cross beam of subframe upper plate, and upper surface 11 and the side 12 of upper plate 2 is modified to the plane.
Opening three slotted eyes on the rear cross beam of subframe upper plate 2, is respectively hole 8, hole 9, and hole 10 also has four mounting holes.
Rear cross beam of subframe sleeve pipe 5, sleeve pipe 6 are welded on the rear cross beam of subframe lower plate 4, and sleeve pipe 5, sleeve pipe 6 are corresponding with two position of mounting hole on the after cross member upper plate 2, have two mounting holes and sleeve pipe 5 on the after cross member lower plate 4, sleeve pipe 6 positions are corresponding.
Rear cross beam of subframe mounting bracket backing plate 7 is welded on the after cross member upper plate 2, opens two mounting holes at support sole plate 7, and two mounting hole places are welded with nut, and two mounting holes on the support sole plate 7 are corresponding with two position of mounting hole on the after cross member upper plate 2.
Rear cross beam of subframe lower plate 4 is connected with brace panel by seam weldering connection, namely is welded on two positions of after cross member lower plate 4, and be respectively the position 13 that is positioned at the upper surface of after cross member lower plate 4, be positioned at the position 14 of the side of after cross member lower plate 4.
Rear cross beam of subframe upper plate 2 is connected with brace panel by the plug welding connection, and namely brace panel 3 is welded in respectively three slotted eyes of after cross member upper plate 2 with three flange, and namely the hole 8, hole 9,10 places, hole.
Rear cross beam of subframe upper plate 2 is connected with the after cross member lower plate by seam weldering connection.
Rear cross beam of subframe is connected by four bolts with mounting bracket.
Because the rear cross beam of subframe structure of automobile cooperates with rear suspension bracket by new design after cross member upper surface, guaranteed that rear suspension bracket can be arranged into the rear cross beam of subframe top.
And calculate by CAE, the highest equivalent stress of after cross member has reduced by 21%.
By complete vehicle test, this rear suspension bracket can satisfy intensity, rigidity and the durability performance requirement under the whole vehicle state.
As seen the rear cross beam of subframe that provides of the utility model comprises after cross member upper plate 2, after cross member lower plate 4, brace panel 3, sleeve pipe 5, sleeve pipe 6, with after cross member mounting bracket backing plate 7, rear cross beam of subframe sleeve pipe 5, sleeve pipe 6 is connected with the rear cross beam of subframe lower plate by seam weldering connection, rear cross beam of subframe mounting bracket backing plate 7 is connected by the seam weldering with after cross member upper plate 2, rear cross beam of subframe lower plate 4 is connected with brace panel by seam weldering connection, rear cross beam of subframe upper plate 2 is connected with brace panel and is connected by plug welding, rear cross beam of subframe upper plate 2 is connected with the after cross member lower plate by seam weldering connection, rear cross beam of subframe is connected by four bolts with mounting bracket, as shown in Figure 3, the mainboard 31 of rear cross beam of subframe brace panel 3 is with flange 32, but punch forming, adopt the rear suspension bracket of above-mentioned utility model simple in structure, compactness, technique easily realize, the load-carrying capacity that efficiently solves subframe is excessively low, the rigidity of back suspension device of engine installation site is on the low side, the problem of undercapacity.
It should be noted that at last: above embodiment is only in order to the technical solution of the utility model to be described but not limit it, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.

Claims (8)

1. the rear cross beam of subframe structure of an automobile, it is characterized in that, the upper surface of rear cross beam of subframe upper plate and side are the plane, the after cross member upper surface is provided with the mounting hole that cooperates with rear suspension bracket, with be provided with sleeve pipe on the after cross member lower plate that the after cross member upper plate matches, the upper surface of after cross member upper plate is provided with the after cross member mounting bracket backing plate with mounting hole, the mounting hole place of mounting bracket backing plate is welded with nut, the mounting hole of sleeve pipe and mounting bracket backing plate, corresponding with the mounting hole of the upper surface of after cross member upper plate.
2. the rear cross beam of subframe structure of automobile according to claim 1 is characterized in that, described rear cross beam of subframe structure also comprises the brace panel of playing a supporting role between after cross member upper plate and after cross member lower plate.
3. the rear cross beam of subframe structure of automobile according to claim 2, it is characterized in that, have three slotted eyes on the after cross member upper plate, brace panel is with the flange that matches with three slotted eyes, and three slotted eyes of after cross member upper plate are connected flange and are connected by plug welding with brace panel.
4. the rear cross beam of subframe structure of automobile according to claim 2 is characterized in that, the after cross member lower plate is connected the seam weldering and is connected with brace panel, and weld nugget is positioned at upper surface and the side of after cross member lower plate.
5. the rear cross beam of subframe structure of automobile according to claim 1 is characterized in that, the mounting bracket welding with backing is connected on the after cross member upper plate, and the mounting hole quantity of mounting bracket backing plate is two.
6. the rear cross beam of subframe structure of automobile according to claim 1 is characterized in that, Socket welding is connected on the after cross member lower plate, and quantity is two.
7. the rear cross beam of subframe structure of automobile according to claim 1 is characterized in that, the rear cross beam of subframe upper plate is connected the seam weldering and connects with the after cross member lower plate.
8. an automobile is characterized in that, is provided with the rear cross beam of subframe structure such as the described automobile of the arbitrary claim of claim 1-7 on the body of automobile.
CN 201320165758 2013-04-03 2013-04-03 Sub-frame rear cross beam structure of automobile and automobile Active CN203199028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320165758 CN203199028U (en) 2013-04-03 2013-04-03 Sub-frame rear cross beam structure of automobile and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320165758 CN203199028U (en) 2013-04-03 2013-04-03 Sub-frame rear cross beam structure of automobile and automobile

Publications (1)

Publication Number Publication Date
CN203199028U true CN203199028U (en) 2013-09-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320165758 Active CN203199028U (en) 2013-04-03 2013-04-03 Sub-frame rear cross beam structure of automobile and automobile

Country Status (1)

Country Link
CN (1) CN203199028U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608826A (en) * 2015-01-28 2015-05-13 上汽通用五菱汽车股份有限公司 Automobile top cover rear beam reinforcing element structure and automobile top cover rear beam assembly
CN104625653A (en) * 2015-02-11 2015-05-20 柳州市金元机械制造有限公司 Machining method for speed changer suspension assembly
CN104690507A (en) * 2015-02-11 2015-06-10 柳州市金元机械制造有限公司 Processing method for rear cross beam of engine
CN111845939A (en) * 2019-04-28 2020-10-30 浙江吉利控股集团有限公司 Automobile front suspension crossbeam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608826A (en) * 2015-01-28 2015-05-13 上汽通用五菱汽车股份有限公司 Automobile top cover rear beam reinforcing element structure and automobile top cover rear beam assembly
CN104625653A (en) * 2015-02-11 2015-05-20 柳州市金元机械制造有限公司 Machining method for speed changer suspension assembly
CN104690507A (en) * 2015-02-11 2015-06-10 柳州市金元机械制造有限公司 Processing method for rear cross beam of engine
CN111845939A (en) * 2019-04-28 2020-10-30 浙江吉利控股集团有限公司 Automobile front suspension crossbeam

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