CN105416399B - Cut section bar assembly after a kind of car rear overhang - Google Patents
Cut section bar assembly after a kind of car rear overhang Download PDFInfo
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- CN105416399B CN105416399B CN201510976511.1A CN201510976511A CN105416399B CN 105416399 B CN105416399 B CN 105416399B CN 201510976511 A CN201510976511 A CN 201510976511A CN 105416399 B CN105416399 B CN 105416399B
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- column
- assembly
- girder construction
- support assembly
- shock absorber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
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Abstract
The present invention relates to the assembly that cuts section bar after a kind of car rear overhang, including rear section girder construction and the left back shock absorber support assembly being symmetrically arranged in rear section girder construction and right Rear shock absorber support assembly, left back air-bag support assembly and right rear gasbag bracket assembly, left air cell covering bracket assembly and right air cell covering bracket assembly.From above technical scheme; the present invention can solve the deficiencies in the prior art, have that generalization degree is good, structural strength is high, suitable batch and large-scale production and spare part; the application of robot welding is also suitable at the same time, effectively reduces production cycle and labor intensity.
Description
Technical field
The present invention relates to Bus Technology field, and in particular to cut section bar assembly after a kind of car rear overhang.
Background technology
All-loading coach due to its structural strength, passive safety is good the characteristics of, the quilt on present high-end large-scale car
It is widely used.All-loading coach skeleton is a kind of integral truss-type closed loop configuration, its main body is welded by substantial amounts of small rectangular tube
Form, therefore, all-loading coach has welding labor intensity height, heavy workload, welding precision etc. during the manufacturing to be needed
The problem for wanting various frocks to ensure.And in the large stretch of skeleton of all-loading coach five, welding of underframe difficulty is maximum, structure also most
For complexity, it mainly has is linked together group by the assembly that cuts section bar being arranged in order from front to back by longitudinally connected beam assembly
Into whole chassis, and the welding precision each to cut section bar determines the quality of whole chassis, and particularly cut section bar assembly after rear overhang
It is related to the installation connection of rear overhang rear shock absorber and rear overhang rear gasbag, therefore the requirement to precision is especially high, therefore each
The welding to cut section bar after rear overhang is required for high-precision frock to ensure.It is identical being equipped with yet with the variation of car vehicle
Its chassis of the car hung afterwards is also different, therefore it is also different to cause to cut section bar after rear overhang, therefore just needs different high-precision
Frock ensures welding precision, and stock is also more difficult.Assuming that there is two different cars, the chassis of a car is highly
1.2m, the chassis of another car are highly 1.5m.This two cars of hypothesis are equipped with identical rear suspension<Rear axle passes through rear
After suspension is connected in overarm>, it means that the installation site of rear overhang rear shock absorber and rear overhang rear gasbag is identical.But
Be due to two cars chassis height it is different, a 1.2m, a 1.5m, it is therefore desirable to design section after two rear overhangs
Beam assembly.
The content of the invention
It is an object of the invention to provide the assembly that cuts section bar after a kind of car rear overhang, section assembly can solve after the rear overhang
The deficiencies in the prior art, suitable for the chassis with spare identical rear suspension, so as to reduce the weldering of all-loading coach chassis
Difficulty is connect, improves the assembly precision of all-loading coach chassis.
To achieve the above object, present invention employs following technical scheme：
Cut section bar assembly after a kind of car rear overhang, including rear section girder construction and the knot that cuts section bar after being symmetrically arranged at
Left back shock absorber support assembly and right Rear shock absorber support assembly, left back air-bag support assembly and right rear gasbag stent on structure is total
Into, left air cell covering bracket assembly and right air cell covering bracket assembly.
Section girder construction includes behind centre section girder construction and is symmetricly set on section girder construction or so behind centre after described
The left back section girder construction at both ends and section girder construction behind the right side；Section girder construction includes the second left column, second behind the centre
Right column, the second upper beam being connected between the second left column top and the second right column top, be connected to the second left column
If the second intermediate transverse girder between stage casing and the second right column stage casing, be connected between the second upper beam and the second intermediate transverse girder
Dry first strengthen longeron, the left column and in the second right column in second of lower end inside in the second left column
Right column in the second of lower end inside；Right column in left column, second in the left and right ends and second of second intermediate transverse girder
Between be equipped with the second column reinforcing rib；The left back section girder construction and it is right after section girder construction include the 3rd upper beam,
It is vertically connected on longitudinal column of the 3rd upper beam bottom, is connected to longitudinal column stage casing and the second left column or the second right column
Between the 3rd intermediate transverse girder, longitudinal column reinforcing rib for being connected between the 3rd upper beam outer end and longitudinal column lateral surface
And it is connected to several the second reinforcement longerons between the 3rd upper beam and the 3rd intermediate transverse girder；3rd intermediate transverse girder
The 3rd column reinforcing rib is equipped between inner and the second left column or the second right column；The longitudinal direction column is L-type.
The left back shock absorber support assembly is identical with the structure of right Rear shock absorber support assembly, include by left plate,
The forward U-shaped part of opening that back side panel, right plate surround and the top plate being arranged at the top of U-shaped part；Offered on the top plate
Rear shock absorber pilot hole；The left back shock absorber support assembly, right Rear shock absorber support assembly are respectively welded at left back cut section bar
Behind structure, the right side on the 3rd upper beam and the 3rd intermediate transverse girder of section girder construction.
The left back air-bag support assembly is identical with the structure of right rear gasbag bracket assembly, including rear gasbag disk and symmetrically
Two rear gasbags above rear gasbag disk strengthen diagonal brace；Rear gasbag pilot hole is offered on the rear gasbag disk；It is described
Rear gasbag strengthens the top that diagonal brace is tiltedly mounted on rear gasbag disk；The upper end that the rear gasbag strengthens diagonal brace is welded on horizontal stroke on the 3rd
Liang Shang；The rear gasbag disk is located at the lower section of the 3rd intermediate transverse girder.
The left air cell covering bracket assembly is identical with the structure of right air cell covering bracket assembly, including upper cross plate and is welded on
The lower bent plate of upper cross plate bottom；3 pieces of tablets that the lower bent plate is connected by bending successively form；Opened up respectively on the upper cross plate
There are Rear shock absorber support assembly installation gap and rear gasbag bracket assembly installation gap；The upper cross plate is welded on horizontal among the 3rd
Lower end on rear side of beam.
From above technical scheme, the assembly lower part most complicated position of the invention that will cut section bar after rear overhang is independent,
And the theory for introducing the limit intercepts its minimum altitude, although the height of so underframe of coach is different, its underpart structure is phase
With, as long as and be equipped with it is identical after suspension chassis can use the rear overhang after cut section bar.
Brief description of the drawings
Fig. 1 is the structure diagram of assembly of cutting section bar after rear overhang；
Fig. 2 is the assembly that cuts section bar after rear overhang（Not comprising left air cell covering bracket assembly and right air cell covering bracket assembly）Structure
Schematic diagram；
Fig. 3 is the structure diagram of rear overhang section girder construction；
Fig. 4 is the structure diagram of left back shock absorber support assembly or right Rear shock absorber support assembly；
Fig. 5 is the structure diagram of left back air-bag support assembly or right rear gasbag bracket assembly；
Fig. 6 is the structure diagram of right air cell covering bracket assembly.
Wherein：
61st, section girder construction behind centre, the 611, second left column, the 612, second right column, the 613, second upper beam, 614,
Second intermediate transverse girder, left column in 615, second, right column in 616, second, 617, first strengthens longeron, the 618, second column
Reinforcing rib, 62, left back section girder construction, the 621, the 3rd upper beam, 622, longitudinal column, the 623, the 3rd intermediate transverse girder, 624, the
Two strengthen longerons, 625, longitudinal column reinforcing rib, the 626, the 3rd column reinforcing rib, 63, it is right after section girder construction, 64, left back subtract
Shake device bracket assembly, 641, left plate, 642, back side panel, 643, right plate, 644, top plate, 645, rear shock absorber pilot hole, 65,
Right Rear shock absorber support assembly, 66, left back air-bag support assembly, 661, rear gasbag disk, 662, rear gasbag strengthen diagonal brace, 663, after
Air bag pilot hole, 67, right rear gasbag bracket assembly, 68, left air cell covering bracket assembly, 69, right air cell covering bracket assembly, 691, on
Transverse slat, 692, lower bent plate, 693, Rear shock absorber support assembly installation gap, 694, rear gasbag bracket assembly installation gap.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
Cut section bar assembly after a kind of car rear overhang as Figure 1-Figure 2, including rear section girder construction and respectively symmetrically
The left back shock absorber support assembly 64 and right Rear shock absorber support assembly 65, left back air-bag support being arranged in rear section girder construction
Assembly 66 and right rear gasbag bracket assembly 67, left air cell covering bracket assembly 68 and right air cell covering bracket assembly 69.
As shown in figure 3, section girder construction is cut including section girder construction 61 behind centre and after being symmetricly set on centre after described
The left back section girder construction 62 of 61 left and right ends of face girder construction and section girder construction 63 behind the right side.Section girder construction 61 behind the centre
Including the second left column 611, the second right column 612, be connected to 611 top of the second left column and 612 top of the second right column it
Between the second upper beam 613, be connected between 612 stage casing of 611 stage casing of the second left column and the second right column second among it is horizontal
Beam 614, some first be connected between the second upper beam 613 and the second intermediate transverse girder 614 strengthen longerons 617, installed in the
In two left columns 611 in the second of lower end inside left column 615 and in the second right column 612 lower end inside second
Middle right column 616；In the left and right ends and second of second intermediate transverse girder 614 in left column 615, second right column 616 it
Between be equipped with the second column reinforcing rib 618.Section girder construction includes the 3rd upper beam after the left back section girder construction and the right side
621st, it is vertically connected on longitudinal column 622 of 621 bottom of the 3rd upper beam, is connected to longitudinal 622 stage casing of column and second is left vertical
The 3rd intermediate transverse girder 6 between 611 or second right column 612 of column, be connected to 621 outer end of the 3rd upper beam and longitudinal column
Longitudinal column reinforcing rib 625 between 622 lateral surfaces and it is connected between the 3rd upper beam 621 and the 3rd intermediate transverse girder 623
Several second strengthen longerons 624.Set between the inner of 3rd intermediate transverse girder and the second left column or the second right column
There is the 3rd column reinforcing rib 626.The longitudinal direction column is L-type.The assembly that cuts section bar after the rear overhang is by some crossbeams and diagonal brace
The multiplex roles of composition cut section bar.Second upper beam, the connecting interface being connected as the present invention with underframe of coach upper end.It is described
Second left column, the second right column, are on the one hand respectively used to connect left longitudinal beam connected assembly, the rear end of right longitudinal beam connected assembly；
On the other hand the connecting interface being connected respectively as the present invention with facade left-right longeron after underframe of coach 7.
As shown in figure 4, the left back shock absorber support assembly 64 is identical with the structure of right Rear shock absorber support assembly 65,
Including the forward U-shaped part of opening surrounded by left plate 641, back side panel 642, right plate 643 and it is arranged at the top of U-shaped part
Top plate 644.Rear shock absorber pilot hole 645 is offered on the top plate 644.Subtract behind the left back shock absorber support assembly 64, the right side
Shake device bracket assembly 65 be respectively welded at left back section girder construction 62, it is right after section girder construction 63 the 3rd upper beam 621 and the
On three intermediate transverse girders 623.Compared to the prior art, left back shock absorber support assembly of the present invention and right rear shock absorber branch
Frame assembly can seal damper while damper is fixedly mounted, without outside bumper installation structure again
The other seal closures of addition, have the characteristics that simple in structure, cost is low.The present invention sets left and right shock absorber support using anti-U-shaped
Meter, can realize itself parcel damper, beautiful and generous, at the same time, the mounting surface and mounting hole of left and right shock absorber support are straight
Connect and connected with in-car, installation and removal facility, is overhauled also very convenient.
As shown in figure 5, the left back air-bag support assembly 66 is identical with the structure of right rear gasbag bracket assembly 67, include
Rear gasbag disk 661 and the two rear gasbags reinforcement diagonal brace 662 for being symmetrically mounted on the top of rear gasbag disk 661.The rear gasbag disk 661
On offer rear gasbag pilot hole 663.The rear gasbag strengthens the top that diagonal brace 662 is tiltedly mounted on rear gasbag disk 661.It is described
The upper end that rear gasbag strengthens diagonal brace 662 is welded on the 3rd upper beam 623；The rear gasbag disk 661 is located at the 3rd intermediate transverse girder
623 lower section.
As shown in fig. 6, the left air cell covering bracket assembly 68 is identical with the structure of right air cell covering bracket assembly 69, include
Upper cross plate 691 and the lower bent plate 692 for being welded on 691 bottom of upper cross plate.Be connected by bending successively 3 pieces of the lower bent plate 692 are flat
Plate forms.Rear shock absorber support assembly installation gap 693 and rear gasbag bracket assembly peace are offered on the upper cross plate 691 respectively
Fill notch 694.The upper cross plate 691 is welded on the lower end of the rear side of the 3rd intermediate transverse girder 623.The rear gasbag disk is located at upper cross plate
Lower section, and rear gasbag disk and upper cross plate are fitted close, and the rear gasbag strengthens diagonal brace from rear gasbag bracket assembly installation gap
Stretch out, positioned at the top of upper cross plate.The bottom of the left back shock absorber support assembly and right Rear shock absorber support assembly is welded on
The top of the Rear shock absorber support assembly installation gap.Left air cell covering bracket assembly of the present invention and right air cell covering branch
Frame assembly, forms close loop mechanism, on the one hand improves the structural strength of rear gasbag disk, structure function part is mutually united with stressed member
One, on the other hand improve space availability ratio.
In traditional underframe of coach structure, rear overhang rear gasbag disk is by building one on air bag disk after rear overhang
Cut section bar and its neighbouring longeron（Cut section bar after rear overhang and more after cut section bar between longitudinal beam connected）Space structure, structure
Extremely complex heaviness.And Rear shock absorber support is positive U-shaped structure in traditional underframe of coach, damper is overall exposed after loading onto
, damper and air bag mounting structure are integrally wrapped to ensure that aesthetics can design a big welded airbag cover, so
Not only occupied space is big and the installation of air bag and damper and maintenance are all inconvenient.Left and right air-bag support of the present invention is total
Into with air cell covering bracket assembly, take full advantage of spatial relation, design the 3rd intermediate transverse girder and the 3rd upper beam is directly horizontal
On air bag disk, undertake the upward stress of air bag disk, it is another design two rear gasbags and strengthen diagonal brace be reinforced, it is simple in structure can
Lean on.Meanwhile the left and right air cell covering bracket assembly that present invention design is realized, directly bear against on air bag disk, occupy the sky of minimum
Between, while air cell covering bracket assembly can also undertake the stress with decomposition gas discus, and the installation small sircle hole of air bag disk is directly and car
Interior connection, installation and removal facility, maintenance are also very convenient.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, should all fall into the protection domain that claims of the present invention determines.
Claims (4)
1. cut section bar assembly after a kind of car rear overhang, it is characterised in that：Including rear section girder construction and it is symmetrically arranged at
Afterwards the left back shock absorber support assembly in the girder construction of section and right Rear shock absorber support assembly, left back air-bag support assembly with it is right after
Air-bag support assembly, left air cell covering bracket assembly and right air cell covering bracket assembly；
The left back shock absorber support assembly is identical with the structure of right Rear shock absorber support assembly, includes by left plate, rear side
The forward U-shaped part of opening that plate, right plate surround and the top plate being arranged at the top of U-shaped part；Subtract after being offered on the top plate
Shake device pilot hole；
The left back air-bag support assembly is identical with the structure of right rear gasbag bracket assembly, including rear gasbag disk and is symmetrically installed
Two rear gasbags above rear gasbag disk strengthen diagonal brace；Rear gasbag pilot hole is offered on the rear gasbag disk；Gas after described
Capsule strengthens the top that diagonal brace is tiltedly mounted on rear gasbag disk；
The left air cell covering bracket assembly is identical with the structure of right air cell covering bracket assembly, including upper cross plate and is welded on upper horizontal stroke
The lower bent plate of plate bottom；
Section girder construction including section girder construction behind centre and is symmetricly set on section girder construction left and right ends behind centre after described
Left back section girder construction with it is right after section girder construction；Section girder construction includes the second left column behind the centre, second right side is stood
Column, the second upper beam being connected between the second left column top and the second right column top, be connected to the second left column stage casing
The second intermediate transverse girder between the second right column stage casing, some be connected between the second upper beam and the second intermediate transverse girder
One strengthens longeron, left column and the lower end in the second right column in second of lower end inside in the second left column
Right column in the second of inner side；In the left and right ends and second of second intermediate transverse girder in left column, second between right column
It is equipped with the second column reinforcing rib；The left back section girder construction and it is right after section girder construction include the 3rd upper beam, vertical
It is connected to longitudinal column of the 3rd upper beam bottom, is connected between longitudinal column stage casing and the second left column or the second right column
The 3rd intermediate transverse girder, longitudinal column reinforcing rib for being connected between the 3rd upper beam outer end and longitudinal column lateral surface and
Several the second reinforcement longerons being connected between the 3rd upper beam and the 3rd intermediate transverse girder；The inner of 3rd intermediate transverse girder
The 3rd column reinforcing rib is equipped between the second left column or the second right column；The longitudinal direction column is L-type.
2. cut section bar assembly after a kind of car rear overhang according to claim 1, it is characterised in that：The left back damper branch
Frame assembly, right Rear shock absorber support assembly are respectively welded at the 3rd upper beam of section girder construction behind left back section girder construction, the right side
On the 3rd intermediate transverse girder.
3. cut section bar assembly after a kind of car rear overhang according to claim 1, it is characterised in that：The rear gasbag is strengthened oblique
The upper end of support is welded on the 3rd upper beam；The rear gasbag disk is located at the lower section of the 3rd intermediate transverse girder.
4. cut section bar assembly after a kind of car rear overhang according to claim 1, it is characterised in that：The lower bent plate is by successively
3 pieces of tablets composition that bending is connected；Rear shock absorber support assembly installation gap and rear gasbag are offered on the upper cross plate respectively
Bracket assembly installation gap；The upper cross plate is welded on the lower end on rear side of the 3rd intermediate transverse girder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976511.1A CN105416399B (en) | 2015-12-23 | 2015-12-23 | Cut section bar assembly after a kind of car rear overhang |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510976511.1A CN105416399B (en) | 2015-12-23 | 2015-12-23 | Cut section bar assembly after a kind of car rear overhang |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105416399A CN105416399A (en) | 2016-03-23 |
| CN105416399B true CN105416399B (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510976511.1A Active CN105416399B (en) | 2015-12-23 | 2015-12-23 | Cut section bar assembly after a kind of car rear overhang |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105416399B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2671848Y (en) * | 2004-01-19 | 2005-01-19 | 上海科曼车辆部件系统有限公司 | Full air rear suspension frame for large bus |
| CN2758112Y (en) * | 2004-12-27 | 2006-02-15 | 上海科曼车辆部件系统有限公司 | Composite air rear suspension frame of automobile driving axle |
| CN2794902Y (en) * | 2004-12-24 | 2006-07-12 | 上海科曼车辆部件系统有限公司 | Full air front suspension frame structure of automobile steering bridge |
| CN201366919Y (en) * | 2009-03-12 | 2009-12-23 | 中通客车控股股份有限公司 | Special A type frame air spring rear suspension for large passenger vehicle |
| CN201405695Y (en) * | 2009-04-30 | 2010-02-17 | 江汉大学 | Driving axle all-air rear suspension rack of low-floor low-entrance city bus |
| CN204567205U (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Front independent air suspension system and there is its light bus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857647B2 (en) * | 2002-10-29 | 2005-02-22 | International Truck Intellectual Property Company, Llc | Vehicle suspension system |
-
2015
- 2015-12-23 CN CN201510976511.1A patent/CN105416399B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2671848Y (en) * | 2004-01-19 | 2005-01-19 | 上海科曼车辆部件系统有限公司 | Full air rear suspension frame for large bus |
| CN2794902Y (en) * | 2004-12-24 | 2006-07-12 | 上海科曼车辆部件系统有限公司 | Full air front suspension frame structure of automobile steering bridge |
| CN2758112Y (en) * | 2004-12-27 | 2006-02-15 | 上海科曼车辆部件系统有限公司 | Composite air rear suspension frame of automobile driving axle |
| CN201366919Y (en) * | 2009-03-12 | 2009-12-23 | 中通客车控股股份有限公司 | Special A type frame air spring rear suspension for large passenger vehicle |
| CN201405695Y (en) * | 2009-04-30 | 2010-02-17 | 江汉大学 | Driving axle all-air rear suspension rack of low-floor low-entrance city bus |
| CN204567205U (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Front independent air suspension system and there is its light bus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105416399A (en) | 2016-03-23 |
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