CN207860260U - A kind of chassis afterframe assembly - Google Patents
A kind of chassis afterframe assembly Download PDFInfo
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- CN207860260U CN207860260U CN201721584689.2U CN201721584689U CN207860260U CN 207860260 U CN207860260 U CN 207860260U CN 201721584689 U CN201721584689 U CN 201721584689U CN 207860260 U CN207860260 U CN 207860260U
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Abstract
The utility model discloses a kind of chassis afterframe assembly, including tailstock longeron, the tailstock frame assembly of tailstock crossbeam and tail portion crossbeam and including vehicle floor side member, the body tail frame assembly of first crossbeam and second cross beam, tailstock crossbeam rear portion is provided with back shroud or back buffer beam, tailstock longeron is fixed with vehicle floor side member rear end by rear longitudinal beam connected, third crossbeam and the 4th crossbeam are laterally set between longitudinal beam connected afterwards, first crossbeam is fixed on floor afterwards, on second cross beam, third crossbeam, on 4th crossbeam and tail portion crossbeam, front and back end and third crossbeam and the fixed back seat longeron of the 4th crossbeam are equipped between third crossbeam and the 4th crossbeam, vehicle rear seat is fixed on third crossbeam, on 4th crossbeam and back seat longeron.A kind of chassis after-frame frame assembly structure of the utility model is simple, improves the torsion stiffness and impact resistance of ride comfort and rear floor area, avoids stress concentration, improves cruising characteristic, improves bodywork safety energy.
Description
Technical field
The utility model is related to a kind of frame structures of automobile, more particularly to a kind of chassis afterframe assembly.
Background technology
Body structure is made of outer covering piece, beam, pillar and structural reinforcement member, be subject to road surface chassis collision etc. load and
Transmit the fundamental system of load.Body structure designs the safety to vehicle body, endurance, bending and torsion stiffness, white body mould
State property can have conclusive effect.Body structure design not only influences the performance of vehicle body, also influences the weight and cost of vehicle body.
Medium-sized SUV vehicles are generally wheelbase in 5 or 7 seat coach of 2700mm or more, and traditional SUV is before engine
Forerunner is set, counterweight difference is big before and after vehicle is susceptible to when wheelbase reaches 2800mm, preceding heavy rear light particularly evident, influences vehicle
It is the balance of traveling, stability, handling；In order to meet the general crossbeam of body performance under the conditions of long wheelbase and longeron quantity compared with
More, car body weight is heavy and of high cost；The chassis frame structure of traditional front-engine rear-drive vehicle includes that chassis front baffle is total
At with chassis afterframe assembly, the two docking.And it includes left and right that the total Chengdu of chassis afterframe currently on the market, which is,
The longeron of setting and horizontally arranged at least five crossbeams being extended between two longerons in left and right, rear floor covering layers are solid
Due on two longerons and five crossbeams, seat and spare tyre etc. are fixed on by other component on five crossbeams.
Connection and support element are less between the crossbeam of body frame structure for automotive traditional in this way, and when vehicle reverses, power transmits the company for only relying on longeron
It connects, is mutually transmitted between crossbeam and two big longeron, the power transmission between crossbeam and crossbeam is required to carry out by big longeron
Transfer conveys, and in measuring driving process, especially when turning, the stress of whole big longitudinal and cross beam compares
Greatly, and Impact direction is different directions, and roadability obviously receives influence, especially the longitudinal and cross beam in twisting conditions
It deforms larger, even more seriously affects vehicle run stability, such case is particularly bright in the vehicle that rear suspension is independent suspension
It is aobvious.And since power is transmitted not in time and direction is single, the strength and stiffness of the carrier frame of entire white body are not high, respectively
Component is by large effect.And since the crossbeam of traditional body frame structure for automotive extends only to the connection of longeron side, beam-end exists
It is welded with longeron at crossbeam lateral location, crossbeam and longeron joint intensity is not high.Collision and larger angle torsion when
It waits, the connection of crossbeam and longeron is insecure, and strength and stiffness are inadequate.In addition the subframe installation pallet of traditional structure is mounted directly
On longeron, there is no being connect with crossbeam, although subframe installation pallet by pallet reinforcing plate and is indulged in some cases
Beam connects, but also easily causes the installation point insufficient rigidity of subframe installation pallet in this way, has both influenced driving stationarity,
It is easy to cause installation point fatigue cracking again.
Invention content
The utility model is completed to solve in the prior art insufficient, and the purpose of this utility model is to provide one
Kind is simple in structure, effectively improves the comfort of passenger's seating and can effectively improve the torsion stiffness of rear floor area and resist
Impact capacity avoids stress concentration, improves vehicle cruising characteristic, effectively improves the chassis afterframe of bodywork safety energy
Assembly.
A kind of chassis afterframe assembly of the utility model, including tailstock frame assembly and body tail frame set
Part, the tailstock frame assembly include the tailstock longeron and be set to two tailstock longeron front ends that the left and right sides is respectively set
Tailstock crossbeam between rear end and tail portion crossbeam, tailstock crossbeam rear portion is provided with back shroud or back buffer beam, described
Body tail frame assembly include the vehicle floor side member that the left and right sides is arranged and be set between two vehicle floor side members by preceding
To rear parallel transverse arrange first crossbeam and second cross beam, tailstock longeron front end with after the corresponding vehicle floor side member
End is detachably fixed connection by rear longitudinal beam connected, is provided between two rear longitudinal beam connecteds of left and right settings laterally flat
The third crossbeam and the 4th crossbeam of row arrangement, rear floor, which detachably extends, is fixedly installed on the first crossbeam, second cross
It is longitudinal between the third crossbeam and the 4th crossbeam on Liang Shang, the third crossbeam, the 4th crossbeam and tail portion crossbeam
Being extended has at least one back seat longeron, back seat longeron front and back end respectively with the third crossbeam and the 4th crossbeam
Middle part be fixedly connected, vehicle rear seat is detachably fixed that be connected to the third crossbeam, the 4th crossbeam and the back seat vertical
Liang Shang.
A kind of chassis afterframe assembly of the utility model can also be：
It is longitudinally extended between the third crossbeam and the 4th crossbeam and is provided at least two back seat side bars, two institutes
State back seat side bar front and back end be detachably fixed respectively be connected to the third crossbeam and the 4th crossbeam left side and
On right side, vehicle rear seat, which is detachably fixed, to be connected on the third crossbeam, the 4th crossbeam and the back seat side bar.
It is horizontally arranged with the Rear frame extending beam extended outward in the middle part of the tailstock longeron of the left and right sides, after described
Vehicle frame extending beam is the box-like body of upper opening, the lateral wall of the medial end of the Rear frame extending beam and the tailstock longeron
Be fixedly connected, the outboard end of the Rear frame extending beam respectively with the side-wall inner-plate of corresponding position, the back shroud or
Back buffer beam is fixedly connected.
The Rear frame extending beam medial end bottom surface is fixedly connected with tailstock longeron bottom, and the Rear frame is prolonged
Beam medial end is provided with extending beam bending edge strip, and the extending beam bending edge strip connects with the tailstock longeron lateral surface face
It touches, the extending beam bending edge strip is fixedly connected with tailstock longeron face contact position.
The outboard end of the Rear frame extending beam is both provided with prolonging upward, towards front and towards rear bending
Beam bending edge strip, the extending beam bending edge strip of the Rear frame extending beam outboard end respectively with the side-wall inner-plate and
The back shroud or the contact of back buffer beam face, the extending beam bending edge strip and the side-wall inner-plate and the back shroud or
Back buffer beam face contact position is fixedly connected.
Tail portion crossbeam left and right ends portion is respectively arranged with tail boom bending edge strip, the tail boom bending edge strip and the vehicle
Medial surface, the bottom surface of tail longeron are fixedly connected with the equal face contact of upper face.
Tail portion crossbeam left and right ends portion by the medial surface of tail boom fixed beam and the tailstock longeron, bottom surface and on
Portion surface contacts and fixes, and the tail boom fixed beam medial end is fixedly connected with the tail boom crossbeam respectively, and the tail boom is solid
The tail boom bending edge strip of the outer ends Ding Liang setting is extended outward, to the left and right and to the right respectively, the tail boom fixed beam
The outwardly extending tail boom bending edge strip of outer end contacts fixation with the bottom surface face of tailstock longeron, outside the tail boom fixed beam
The tail boom bending edge strip that end middle part and lower part extend to the left and to the right is solid with the inside plane-plane contact of the tailstock longeron
Calmly, top of the tail boom bending edge strip of tail boom fixed beam bottom extended to the left and to the right with the tailstock longeron
Table plane-plane contact is fixed.
It is longitudinally extended between the first crossbeam and the second cross beam and is provided at least two Rear frames being mutually parallel
The rear and front end of longeron, the Rear frame longeron is individually fixed in the middle part of the first crossbeam middle part and the second cross beam.
It is longitudinally extended between 4th crossbeam and the tail portion crossbeam and is provided at least two spare tyre branch being mutually parallel
Beam is supportted, wheel support is removably fixed in the spare tyre supporting beam.
At least one subframe installation pallet, the left and right two of at least described 4th crossbeam are provided with after described on longitudinal beam connected
A outboard end bottom surface with it is described after the bottom surface face of longitudinal beam connected contact fixation, the subframe installs pallet described the
Four cross rail outer ends and the bottom surface junction of the rear longitudinal beam connected and the 4th crossbeam and the rear longitudinal beam connected three
Person is fixedly connected, and side is fixed with plane-plane contact on the inside of the rear longitudinal beam connected and connected before and after the outboard end of the 4th crossbeam
It connects.
A kind of chassis afterframe assembly of the utility model, including tailstock frame assembly and body tail frame set
Part, the tailstock frame assembly include the tailstock longeron and be set to two tailstock longeron front ends that the left and right sides is respectively set
Tailstock crossbeam between rear end and tail portion crossbeam, tailstock crossbeam rear portion is provided with back shroud or back buffer beam, described
Body tail frame assembly include the vehicle floor side member that the left and right sides is arranged and be set between two vehicle floor side members by preceding
To rear parallel transverse arrange first crossbeam and second cross beam, tailstock longeron front end with after the corresponding vehicle floor side member
End is detachably fixed connection by rear longitudinal beam connected, is provided between two rear longitudinal beam connecteds of left and right settings laterally flat
The third crossbeam and the 4th crossbeam of row arrangement, rear floor, which detachably extends, is fixedly installed on the first crossbeam, second cross
It is longitudinal between the third crossbeam and the 4th crossbeam on Liang Shang, the third crossbeam, the 4th crossbeam and tail portion crossbeam
Being extended has at least one back seat longeron, back seat longeron front and back end respectively with the third crossbeam and the 4th crossbeam
Middle part be fixedly connected, vehicle rear seat is detachably fixed that be connected to the third crossbeam, the 4th crossbeam and the back seat vertical
Liang Shang.In this way, tailstock frame assembly be support and protection each component of the tailstock, back shroud or back buffer beam therein be
Automobile tail position and deformation absorbing impact force in other automobiles or article collision process, and body tail frame assembly is
Support and the setting of the protection components such as body tail personnel and seat and safety.And the vehicle floor side member of the left and right sides it
Between setting vehicle first crossbeam and second cross beam be in order to which whole body tail frame assembly is more stablized, when automobile rear by
Stress is transferred to first crossbeam and second cross beam to when collision, after the vehicle floor side member stress and along first crossbeam and the
Two crossbeams are transferred on the vehicle floor side member of the other side, are effectively delivered stress in this way, are avoided stress concentration, effectively improve vehicle
The strength and stiffness of body chassis assembly.In addition, vertical by the rear connection between the tailstock longeron and the vehicle floor side member
Beam connects, and the length of longeron each in this way is molded and produces and transport is compared compared to being reduced for traditional big longeron in this way
It is easy, installation and removal are convenient, that longeron of damage, effectively save later maintenance are only replaced in the case of partial destruction
Cost.And be laterally extended between the rear longitudinal beam connected of left and right two and the 4th crossbeam and the third crossbeam are set,
Tailstock crossbeam and tail portion crossbeam, the third crossbeam, the 4th crossbeam, tail portion crossbeam and vehicle are set between the tailstock longeron
Transom beam supports and fixes the rear longitudinal beam connected and the tailstock longeron, in automobile by external force or the mistake of torsion
Will be transmitted in journey it is described after the power of longitudinal beam connected and the tailstock longeron be transferred to the institute that other side is transferred to after each crossbeam
State rear longitudinal beam connected and the tailstock longeron.Floor, which detachably extends, afterwards is fixedly installed on the first crossbeam, second cross
So that bottom is smooth in car body on Liang Shang, the third crossbeam, the 4th crossbeam and tail portion crossbeam.In the third crossbeam and
At least one back seat longeron is set between the 4th crossbeam, it first will in addition to the rear longitudinal beam connected of the left and right sides
Except the end of the third crossbeam and the 4th crossbeam is connected and fixed, in the third crossbeam and the 4th crossbeam
Portion increases longitudinal back seat longeron being connected and fixed with support both of them, in this way in side stress or driving process
When right-hand bend to the left, it is described after longitudinal beam connected be forced through the third crossbeam and the 4th crossbeam be transferred to it is another
It at the rear longitudinal beam connected of side, and is transferred to simultaneously on the back seat longeron, the back seat longeron hinders the third
The deformation of crossbeam and the 4th crossbeam, and transmitted due to power and form the stress frames of two rectangles, each crossbeam and
The end stress of each longeron avoids each portion in large torque and external force impact event on the contrary, effectively balance out most power
The stress concentration of part avoids each crossbeam and longeron from deforming, and effectively improves and is connected and fixed stability between each longitudinal and cross beam, carries
High white body torsion stiffness, improves the intensity of chassis frame, and then improve bodywork safety, simultaneously because setting is more
A crossbeam and longeron support seat etc., therefore the comfort that passenger takes is more preferable, reduces vibrations and noise.The utility model
A kind of chassis afterframe assembly, compared with the existing technology the advantages of be：It is simple in structure, effectively improve passenger seating relax
The suitable torsion stiffness and impact resistance felt and can effectively improve rear floor area, avoids stress concentration, improves vehicle row
Stationarity is sailed, bodywork safety energy is effectively improved.
Description of the drawings
A kind of chassis after-frame frame assembly structure schematic diagram of Fig. 1 the utility model.
The portions B enlarged drawing in a kind of chassis afterframe assembly Fig. 1 of Fig. 2 the utility model.
The portions D enlarged drawing in a kind of chassis afterframe assembly Fig. 1 of Fig. 3 the utility model.
Figure number explanation
1 ... first crossbeam 2 ... second cross beam 3 ... Rear frame longeron
4 ... the 4th crossbeams of vehicle floor side member 5 ... third crossbeam 6 ...
7 ... tail portion crossbeam 8 ... back seat longeron 9 ... tailstock longerons
10 ... tailstock crossbeam 11 ... spare tyre supporting beam 12 ... Rear frame extending beams
13 ... the rear longitudinal beam connecteds of back shroud 14 ... side-wall inner-plate 15 ...
16 ... back seat side bar 17 ... subframes install pallet 18 ... tail boom fixed beam
19 ... tail boom bending edge strip 20 ... extending beam bending edge strip 21 ... crossbeam tie-beams
22 ... crossbeam bending edge strips
Specific implementation mode
Fig. 1 to Fig. 3 below in conjunction with the accompanying drawings makees a kind of chassis afterframe assembly of the utility model further detailed
It describes in detail bright.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, including the tailstock
Frame assembly and body tail frame assembly, the tailstock frame assembly include 9 He of tailstock longeron that the left and right sides is respectively set
The tailstock crossbeam 10 and tail portion crossbeam 7 being set between two 9 front-end and back-end of tailstock longeron, after the tailstock crossbeam 10
Portion is provided with back shroud or back buffer beam, and the body tail frame assembly includes 4 He of vehicle floor side member that the left and right sides is arranged
It is set to the first crossbeam 1 and second cross beam 2 of the arrangement of parallel transverse from front to back between two vehicle floor side members 4, it is described
9 front end of tailstock longeron is detachably fixed connection with corresponding 4 rear end of vehicle floor side member by rear longitudinal beam connected 15, left and right
The third crossbeam 5 and the 4th crossbeam 6 of horizontally-parallel arrangement, rear floor are provided between two rear longitudinal beam connecteds 15 being arranged
It is detachable extend be fixedly installed on the first crossbeam 1, on the second cross beam 2, the third crossbeam 5, the 4th crossbeam 6
On tail portion crossbeam 7, it is longitudinally extended between the third crossbeam 5 and the 4th crossbeam 6 and is provided at least one back seat vertical 8
Beam, the back seat are indulged 8 beam front and back ends and are fixedly connected respectively with the middle part of 5 and the 4th crossbeam 6 of the third crossbeam, vehicle rear portion seat
Chair, which is detachably fixed, to be connected on vertical 8 beams of the third crossbeam 5, the 4th crossbeam 6 and the back seat.In this way, tailstock frame set
Part is support and protection each component of the tailstock, and back shroud 13 or back buffer beam therein are in automobile tail position and other
Absorbing impact force is deformed in automobile or article collision process, and body tail frame assembly is support and protection body tail
The setting of the components such as personnel and seat and safety.And vehicle first crossbeam 1 is set between the vehicle floor side member 4 of the left and right sides
With second cross beam 2 more stablized for the body tail frame assembly of entirety, when automobile rear is collided, institute
Stress is transferred to first crossbeam 1 and second cross beam 2 after stating 4 stress of vehicle floor side member and is transmitted along first crossbeam 1 and second cross beam 2
To the vehicle floor side member 4 of the other side, stress is effectively delivered in this way, avoids stress concentration, it is total to effectively improve chassis
At strength and stiffness.In addition, being connected by the rear longitudinal beam connected 15 between the tailstock longeron 9 and the vehicle floor side member 4
It connecing, the length of longeron each in this way is molded and produces and transport is easier compared to being reduced for traditional big longeron in this way,
Installation and removal are convenient, that longeron of damage, effectively save later maintenance cost are only replaced in the case of partial destruction.
And be laterally extended between the rear longitudinal beam connected 15 of left and right two and the 4th crossbeam 6 and the third crossbeam 5 are set, in institute
State setting tailstock crossbeam 10 and tail portion crossbeam 7, the third crossbeam 5, the 4th crossbeam 6, tail portion crossbeam between tailstock longeron 9
7 and tailstock crossbeam 10 support and fix it is described after longitudinal beam connected 15 and the tailstock longeron 9, automobile by external force or
Person will be transmitted to after the power of longitudinal beam connected 15 and the tailstock longeron 9 afterwards is transferred to each crossbeam during reversing and transmit
To the rear longitudinal beam connected 15 and the tailstock longeron 9 of other side.Floor, which detachably extends, afterwards is fixedly installed on described the
On one crossbeam 1, the second cross beam 2, make bottom in car body on the third crossbeam 5, the 4th crossbeam 6 and tail portion crossbeam 7
Portion is smooth.Be arranged between the third crossbeam 5 and the 4th crossbeam 6 at least one back seat indulge 8 beams, first in addition to
Except the end of the third crossbeam 5 and the 4th crossbeam 6 is connected and fixed by the rear longitudinal beam connected 15 of the left and right sides,
Longitudinal back seat being connected and fixed with support both of them is increased at the middle part of the third crossbeam 5 and the 4th crossbeam 6
Chair indulges 8 beams, and when right-hand bend to the left in side stress or driving process in this way, the stress of the rear longitudinal beam connected 15 is logical
It crosses the third crossbeam 5 and the 4th crossbeam 6 is transferred at the rear longitudinal beam connected 15 of the other side, and be transferred to institute simultaneously
It states back seat to indulge on 8 beams, the back seat indulges the deformation that 8 beams hinder the third crossbeam 5 and the 4th crossbeam 6, Er Qieyou
The stress frame for foring two rectangles is transmitted in power, therefore the end stress of each crossbeam and each longeron is on the contrary, effectively balance out
Most power avoids the stress concentration of each component in large torque and external force impact event, and each crossbeam and longeron is avoided to become
Shape effectively improves and is connected and fixed stability between each longitudinal and cross beam, improve white body torsion stiffness, improves chassis
The intensity of frame, and then bodywork safety is improved, simultaneously because multiple crossbeams and longeron is arranged to support seat etc., therefore multiply
The comfort that visitor takes is more preferable, reduces vibrations and noise.A kind of chassis afterframe assembly of the utility model, relative to
The advantages of prior art is：It is simple in structure, effectively improve passenger seating comfort and rear floor area can be effectively improved
Torsion stiffness and impact resistance, avoid stress concentration, improve vehicle cruising characteristic, effectively improve bodywork safety energy.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, in front skill
Can be specifically on the basis of art scheme：It is also longitudinally extended and is provided at least between the third crossbeam 5 and the 4th crossbeam 6
Two back seat side bars 16, the front and back end of two back seat side bars 16 is detachably fixed respectively is connected to the third crossbeam
5 and the 4th crossbeam 6 left side and right side on, vehicle rear seat, which is detachably fixed, is connected to the third crossbeam 5,
On four crossbeams 6 and the back seat side bar 16.In this way, being provided at least between the third crossbeam 5 and the 4th crossbeam 6
Three longerons, back seat described in these three longerons are indulged 8 beams and are supported and fixed in the third crossbeam 5 and the 4th crossbeam 6
Portion, and the back seat side bar 16 of left and right sides setting then supports and fixes the third crossbeam 5 and the 4th crossbeam 6
Left and right ends portion, and vehicle rear seat can be fixed on the back seat and indulge 8 beams and the back seat side bar 16 and described
On third crossbeam 5 and the 4th crossbeam 6, vehicle rear seat fixed point is more more, and vehicle rear seat is fixed more secured.Stress
When with torsion, external force is transferred to the third crossbeam 5 and the 4th crossbeam 6 from the rear longitudinal beam connected 15, then is transferred to institute
It states on back seat side bar 16, the back seat side bar 16 generates reaction force and hinders the third crossbeam 5 and the 4th crossbeam 6
Between deformation, and then stress is further scatter, effectively prevents stress concentration, the frame of the rectangle of formation is internal-neutralized
Most stress ensures that body distortion is small, forms safety higher.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, in front skill
Can be specifically on the basis of art scheme：The middle part of the tailstock longeron 9 of the left and right sides is horizontally arranged with to be extended outward
Rear frame extending beam 12, the Rear frame extending beam 12 are the box-like body of upper opening, the inside of the Rear frame extending beam 12
End is fixedly connected with the lateral wall of the tailstock longeron 9, the outboard end of the Rear frame extending beam 12 respectively with corresponding position
Side-wall inner-plate 14, the back shroud 13 or the back buffer beam at the place of setting are fixedly connected.In this way, due to being provided with described in box body shape
Rear frame extending beam 12 can will be after the either rear portion setting of the tailstock longeron 9 and side-wall inner-plate 14 and back shroud 13
Idle area between collision prevention girders uses setting and fixes and supports side-wall inner-plate 14 and back shroud 13, in external collision
During side-wall inner-plate 14 and back shroud 13 or back buffer beam stress, this is forced through the Rear frame extending beam 12 and passes through
It is transferred on the tailstock longeron 9 by back shroud 12, is then transferred on tail portion crossbeam 7 by tailstock longeron 9 again, impulsive contact force quilt
It quickly and effectively spreads out, avoids stress concentration, improve the non-deformability and crashworthiness in the region.Technical side in front
Further preferred technical solution is on the basis of case：12 bottom surface of Rear frame extending beam and 9 bottom of tailstock longeron
It is fixedly connected, 12 medial end of Rear frame extending beam is provided with extending beam bending edge strip 20, the extending beam bending edge strip
20 fix with 9 outside plane-plane contact of the tailstock longeron, the extending beam bending edge strip 20 with 9 face contact position of the tailstock longeron
Connection.The medial end of the Rear frame extending beam 12 in this way is fixed with the lateral surface of the tailstock longeron 9 and bottom surface respectively
Connection, connection in two directions so that connection area increases, and connection is more secured, avoids deforming and dropping off after colliding.And
And be that face contact is fixed, fixed-area is big, effectively avoids stress concentration.And due to being the inside of vehicle frame extending beam 12 in the rear
End set has the extending beam bending edge strip 20, passes through the extending beam bending edge strip 20 and 9 lateral surface of tailstock longeron
The fixed fixation realized between the tailstock longeron 9 and the Rear frame extending beam 12 of face contact, it is convenient and at low cost.Preceding
Further preferred technical solution is on the basis of surface technology scheme：It is laterally extended and sets on 12 bottom surface of Rear frame extending beam
It is equipped with reinforcing rib.The purpose that reinforcing rib is arranged is effectively to reinforce the rigidity of structure and intensity of the Rear frame extending beam 12.Preceding
It can also be on the basis of surface technology scheme：The outboard end of the Rear frame extending beam 12 be both provided with upward, direction
Front and extending beam bending edge strip 20 towards rear bending, the extending beam folding of 12 outboard end of Rear frame extending beam
Crimp item 20 is contacted with the side-wall inner-plate 14 and the back shroud 13 or back buffer beam face respectively, the extending beam bending edges
Item 20 is fixedly connected with the side-wall inner-plate 14 and the back shroud 13 or back buffer beam face contact position.After described in this way
The outboard end of vehicle frame extending beam 12 is also by the extending beam bending edge strip 20 and gusset extended to all directions bending
Plate 14 is fixedly connected with back shroud 13 or the contact of back buffer beam face, is effectively increased fixed-area, is improved fix tightly solidity, is avoided
Stress concentration, and the Rear frame extending beam 12 and side-wall inner-plate 14 and back shroud 13 or back buffer beam are fixedly connected on
Together, it is provided to back shroud 13, side-wall inner-plate 14 and back buffer beam etc. and is effectively protected and supports.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, in front skill
It can also be on the basis of art scheme：7 left and right ends portion of the tail portion crossbeam is respectively arranged with tail boom bending edge strip 19, the tail
Beam bending edge strip 19 is contacted and is fixedly connected with the medial surface of the tailstock longeron 9, bottom surface and the equal face of upper face.It is described in this way
Tail portion crossbeam 7 passes through three medial surface of the tail boom bending edge strip 19 and the tailstock longeron 9, bottom surface and upper face faces
Equal face contact is fixed, and fixed-area increases, and improves fix tightly solidity, and transmission path and transmission side during power is transmitted
To multi-direction, stress concentration is effectively avoided.Technical solution further preferred on the basis of technical solution is in front：The tail
Crossbeam 7 left and right ends portion in portion's is connect by tail boom fixed beam 18 and medial surface, bottom surface and the upper face of the tailstock longeron 9
It touches and fixes, 18 medial end of tail boom fixed beam is fixedly connected with the tail boom crossbeam respectively, the tail boom fixed beam 18
The tail boom bending edge strip 19 of outer end setting is extended outward, to the left and right and to the right respectively, the tail boom fixed beam 18
The outwardly extending tail boom bending edge strip 19 of outer end contacts fixation with the bottom surface face of tailstock longeron 9, and the tail boom is fixed
Medial surface of the tail boom bending edge strip 19 that 18 outer end of beam middle part and lower part extend to the left and to the right with the tailstock longeron 9
Face contact is fixed, the tail boom bending edge strip 19 extended to the left and to the right of 18 bottom of tail boom fixed beam with the vehicle
The upper face face contact of tail longeron 9 is solid.The tail boom of the tail boom fixed beam 18 extended to all directions bending in this way
Bending edge strip 19 is contacted and is fixedly connected with the medial surface of the tailstock longeron 9, bottom surface and upper face face respectively, fixed
More securely, stress concentration is avoided, and due to passing through the tail boom fixed beam between the tailstock longeron 9 and tail portion crossbeam 7
18 are connected and fixed, therefore the tail boom bending edge strip extended towards all directions bending need not be arranged in the end of tail portion crossbeam 7
19, structure is simpler, manufacture is easy, and space is more saved in transport.Further preferred technical solution is：Tail portion longeron upper end
Horizontal flange is set, and the tail boom bending edge strip 19 contacts fixation with the flange face.Directions several so are face contacts
Fixed, fixed-area is big, and fixed old fogey higher is more conducive to and avoids stress concentration.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, in front skill
It can also be on the basis of art scheme：It is longitudinally extended between the first crossbeam 1 and the second cross beam 2 and is provided at least two
The Rear frame longeron 3 being mutually parallel, the rear and front end of the Rear frame longeron 3 be individually fixed in 1 middle part of the first crossbeam and
On 2 middle part of the second cross beam.In this way during automobile is by external collision, stress is transferred to by the vehicle floor side member 4
The first crossbeam 1 and the second cross beam 2, the first crossbeam 1 and the second cross beam 2 again by the power be transferred to it is described after
On longitudinal beam 3, at least two Rear frame longerons 3, the first crossbeam 1 and the second cross beam 2 form at least two
Rectangle stress transmits frame, and rectangle stress transmits the power that frame effectively offsets transmission during power is transmitted, and reduces deformation
With emergent concentration, the torsion stiffness and intensity in the region are improved, improves vehicle run stability.The basis of technical solution in front
On can also be：It is longitudinally extended between 4th crossbeam 6 and the tail portion crossbeam 7 and to be provided at least two and be mutually parallel
Spare tyre supporting beam 11, the wheel support are removably fixed in the spare tyre supporting beam 11.It is touched in this way by external force in automobile
During hitting, stress is transferred to the third crossbeam 5 and the 4th crossbeam 6, the third by the rear longitudinal beam connected 15
The power is transferred in the spare tyre supporting beam 11 by crossbeam 5 and the 4th crossbeam 6 again, the spare tyre supporting beam 11, described
Three crossbeams 5 and the 4th crossbeam 6 and the Rear frame longeron 3 formation at least three rectangle stress transmission frame, and rectangle
Stress transmits the power that frame effectively offsets transmission during power is transmitted, and reduces deformation and emergent concentration, improves the region
Torsion stiffness and intensity improve vehicle run stability.Wheel support is removably fixed in the spare tyre supporting beam 11 simultaneously
On, ensure that the fixation of spare tyre is more steady, effectively supports spare tyre storage.
A kind of chassis afterframe assembly of the utility model please refers to Fig.1 into Fig. 3 related each figure, in front skill
It can also be on the basis of art scheme：At least one subframe installation pallet 17 is provided with after described on longitudinal beam connected 15, at least
The outboard end bottom surface of left and right two of 4th crossbeam 6 contacts fixation with the bottom surface face of the rear longitudinal beam connected 15, institute
Subframe installation pallet 17 is stated in the bottom surface junction and institute of 6 outboard end of the 4th crossbeam and the rear longitudinal beam connected 15
State the 4th crossbeam 6 with it is described after 15 three of longitudinal beam connected be fixedly connected, side is and institute before and after the outboard end of the 4th crossbeam 6
15 inside plane-plane contact of rear longitudinal beam connected is stated to be fixedly connected.In this way, subframe installation 17 bottom of pallet and the 4th cross
Beam 6 is fixedly connected with rear 15 three of longitudinal beam connected, effectively increases the rigidity of subframe installation 17 installation point of pallet
And intensity, ensure to drive stationarity and vehicle body durable reliability.Simultaneously 6 both ends of the 4th crossbeam respectively with two it is described after
The bottom surface and medial surface of longitudinal beam connected 15 are fixed, and the face on three faces contacts fixed form so that the 4th crossbeam 6 and institute
State being fixedly connected more securely for rear longitudinal beam connected 15.Technical solution further preferred on the basis of technical solution is in front
4th crossbeam, 6 left and right ends portion by crossbeam tie-beam 21 with it is described after the medial surface of longitudinal beam connected 15, bottom surface and
Upper table plane-plane contact is fixedly connected, and the face contact for being fixed as multiple angles so between the two is fixed, and fixation is more secured.More
Further preferred technical solution is：The outboard end bottom surface of the crossbeam tie-beam 21 is provided with the crossbeam folding of outside bending
Crimp item 22, the crossbeam bending edge strip 22 contact fixation with the bottom surface face of the rear longitudinal beam connected 15.The crossbeam tie-beam
The crossbeam bending edge strip 22 of setting both sides bending to the left and right in the middle part of 21 outboard end, the crossbeam bending edge strip 22 with it is described after connect
The inside plane-plane contact for connecing longeron 15 is fixed.The outboard end top setting both sides bending to the left and right of the crossbeam tie-beam 21
The upper table plane-plane contact of crossbeam bending edge strip 22, the crossbeam bending edge strip 22 and the rear longitudinal beam connected 15 is fixed.It in this way can be with
It realizes that the face contact in three faces is fixed, avoids stress concentration, and improve local torsion stiffness and intensity.
It is above-mentioned that only several specific embodiments in the utility model are illustrated, but can not be as the utility model
Protection domain, the equivalent change or modification or equal proportion amplification made by every design spirit according in the utility model or contracting
It is small etc., it is deemed to fall the scope of protection of the utility model.
Claims (10)
1. a kind of chassis afterframe assembly, it is characterised in that：Including tailstock frame assembly and body tail frame assembly, institute
It includes the tailstock longeron and be set to two tailstock longeron front ends with after that the left and right sides is respectively set to state tailstock frame assembly
Tailstock crossbeam between end and tail portion crossbeam, tailstock crossbeam rear portion are provided with back shroud or back buffer beam, the vehicle body
Rear frame component includes the vehicle floor side member and be set between two vehicle floor side members from front to back that the left and right sides is arranged
The first crossbeam and second cross beam of parallel transverse arrangement, tailstock longeron front end and corresponding vehicle floor side member rear end
It is detachably fixed connection by rear longitudinal beam connected, horizontally-parallel row is provided between two rear longitudinal beam connecteds of left and right settings
The third crossbeam and the 4th crossbeam of row, rear floor detachably extend be fixedly installed on the first crossbeam, on the second cross beam,
On the third crossbeam, the 4th crossbeam and tail portion crossbeam, it is longitudinally extended between the third crossbeam and the 4th crossbeam
Be provided at least one back seat longeron, back seat longeron front and back end respectively in the third crossbeam and the 4th crossbeam
Portion is fixedly connected, and vehicle rear seat, which is detachably fixed, to be connected on the third crossbeam, the 4th crossbeam and the back seat longeron.
2. a kind of chassis afterframe assembly according to claim 1, it is characterised in that：The third crossbeam and described
It is longitudinally extended between 4th crossbeam and is provided at least two back seat side bars, the front and back end of two back seat side bars respectively can
Dismounting is fixedly connected on the left side and right side of the third crossbeam and the 4th crossbeam, and vehicle rear seat is detachably solid
Surely it is connected on the third crossbeam, the 4th crossbeam and the back seat side bar.
3. a kind of chassis afterframe assembly according to claim 1, it is characterised in that：The tailstock of the left and right sides
The Rear frame extending beam extended outward is horizontally arranged in the middle part of longeron, the Rear frame extending beam is the box-like of upper opening
Body, the medial end of the Rear frame extending beam are fixedly connected with the lateral wall of the tailstock longeron, the Rear frame extending beam
Outboard end be fixedly connected respectively with the side-wall inner-plate of corresponding position, the back shroud or back buffer beam.
4. a kind of chassis afterframe assembly according to claim 3, it is characterised in that：In the Rear frame extending beam
Side end bottom surface is fixedly connected with tailstock longeron bottom, and the Rear frame extending beam medial end is provided with extending beam folding
Crimp item, plane-plane contact on the outside of the extending beam bending edge strip and the tailstock longeron, the extending beam bending edge strip with it is described
Tailstock longeron face contact position is fixedly connected.
5. a kind of chassis afterframe assembly according to claim 3, it is characterised in that：The Rear frame extending beam
Outboard end is both provided with the extending beam bending edge strip upward, towards front and towards rear bending, and the Rear frame is prolonged
The extending beam bending edge strip of beam outboard end respectively with the side-wall inner-plate and the back shroud or back buffer beam face
Contact, the extending beam bending edge strip are fixed with the side-wall inner-plate and the back shroud or back buffer beam face contact position
Connection.
6. a kind of chassis afterframe assembly according to claim 1 to 5 any one claim, feature exist
In：Tail portion crossbeam left and right ends portion is respectively arranged with tail boom bending edge strip, and the tail boom bending edge strip is vertical with the tailstock
Medial surface, the bottom surface of beam are fixedly connected with the equal face contact of upper face.
7. a kind of chassis afterframe assembly according to claim 6, it is characterised in that：Described tail portion crossbeam or so two
End is contacted and is fixed with medial surface, bottom surface and the upper face of the tailstock longeron by tail boom fixed beam, the tail boom
Fixed beam medial end is fixedly connected with the tail boom crossbeam respectively, the tail boom folding of tail boom fixed beam outer end setting
Crimp item is extended outward, to the left and right and to the right respectively, the outwardly extending tail boom folding of tail boom fixed beam outer end
Crimp item contacts fixation with the bottom surface face of tailstock longeron, extends to the left and to the right with lower part in the middle part of tail boom fixed beam outer end
Inside plane-plane contact of the tail boom bending edge strip with the tailstock longeron fix, tail boom fixed beam bottom is to the left
The tail boom bending edge strip extended to the right contacts fixation with the upper face face of the tailstock longeron.
8. a kind of chassis afterframe assembly according to claim 1 to 5 any one claim, feature exist
In：It is longitudinally extended between the first crossbeam and the second cross beam and is provided at least two Rear frame longerons being mutually parallel,
On the rear and front end of the Rear frame longeron is individually fixed in the middle part of the first crossbeam middle part and the second cross beam.
9. a kind of chassis afterframe assembly according to claim 1 to 5 any one claim, feature exist
In：It is longitudinally extended between 4th crossbeam and the tail portion crossbeam and is provided at least two spare tyre supporting beams being mutually parallel,
Wheel support is removably fixed in the spare tyre supporting beam.
10. a kind of chassis afterframe assembly according to claim 1 to 5 any one claim, feature exist
In：At least one subframe installation pallet is provided with after described on longitudinal beam connected, the left and right two of at least described 4th crossbeam is outer
Side end bottom surface contacts fixation with the bottom surface face of the rear longitudinal beam connected, and the subframe installation pallet is horizontal the described 4th
The bottom surface junction of beam outboard end and the rear longitudinal beam connected and the 4th crossbeam and the rear longitudinal beam connected three are solid
Fixed to connect, side is fixedly connected with plane-plane contact on the inside of the rear longitudinal beam connected before and after the outboard end of the 4th crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584689.2U CN207860260U (en) | 2017-11-23 | 2017-11-23 | A kind of chassis afterframe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584689.2U CN207860260U (en) | 2017-11-23 | 2017-11-23 | A kind of chassis afterframe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207860260U true CN207860260U (en) | 2018-09-14 |
Family
ID=63467477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721584689.2U Withdrawn - After Issue CN207860260U (en) | 2017-11-23 | 2017-11-23 | A kind of chassis afterframe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207860260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823396A (en) * | 2017-11-23 | 2019-05-31 | 上汽通用五菱汽车股份有限公司 | A kind of chassis afterframe assembly |
-
2017
- 2017-11-23 CN CN201721584689.2U patent/CN207860260U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823396A (en) * | 2017-11-23 | 2019-05-31 | 上汽通用五菱汽车股份有限公司 | A kind of chassis afterframe assembly |
| CN109823396B (en) * | 2017-11-23 | 2024-05-10 | 上汽通用五菱汽车股份有限公司 | Rear frame assembly of chassis of vehicle body |
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