CN107140030A - A kind of half bearing type passenger car vehicle body and the attachment structure and its method on chassis - Google Patents
A kind of half bearing type passenger car vehicle body and the attachment structure and its method on chassis Download PDFInfo
- Publication number
- CN107140030A CN107140030A CN201710409269.9A CN201710409269A CN107140030A CN 107140030 A CN107140030 A CN 107140030A CN 201710409269 A CN201710409269 A CN 201710409269A CN 107140030 A CN107140030 A CN 107140030A
- Authority
- CN
- China
- Prior art keywords
- chassis
- vehicle body
- crossbeam
- hold
- down support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D24/00—Connections between vehicle body and vehicle frame
Abstract
The present invention discloses the attachment structure on a kind of half bearing type passenger car vehicle body and chassis, including body platform skeleton and chassis frame, and the beam surface upper of the body platform skeleton is welded with upper cover plate, forms closed cavity；Welding reinforcing plate and nut limiting bracket above fixing hole, body platform crossbeam fixing hole are set on crossbeam lower surface；Hold-down support is welded with the outside of the crossbeam of the chassis frame both sides, fixing hole is set on the hold-down support；The body platform crossbeam on the hold-down support on chassis frame with being bolted.Invention additionally discloses the connection method on a kind of half bearing type passenger car vehicle body and chassis.The present invention is installed by the fastening of hold-down support on body platform crossbeam and chassis frame, and with the registration that is fastened and connected, production efficiency is obviously improved, connection uniform force, the guaranteed feature of bonding strength, also improves vehicle service life.
Description
Technical field
The invention belongs to car mounting technology field, more particularly to a kind of half bearing type passenger car vehicle body and the connection knot on chassis
Structure and its method.
Background technology
At present, the railway car manufacture technique of chassis and body half-integral construction generally uses spiral-lock pattern, i.e. bus body and chassis
Manufacture, be then connected the body assembly that application is completed with chassis assembly respectively, finally carry out the interior part such as exterior trim and electrical equipment dress
Match somebody with somebody.This spiral-lock pattern advanced driving body can be produced in the case of without chassis, facilitate automobile body welding, electrophoresis, spraying etc. first
Enter technique, production efficiency is high, is adapted to large-scale production.This vehicle body and the mode of production most critical of chassis spiral-lock, most crucial skill
Art is vehicle body and chassis spiral-lock and connection method, and the quality of connection method directly affects the intensity and usage cycles of vehicle.
At present, the car of domestic chassis and body half-integral construction, all using welding structure and welding procedure connection method, the party
Method has the following disadvantages：1st, half bearing type passenger car vehicle body is to spiral-lock location difficulty on chassis frame, and efficiency is low, during positioning, operation
Personnel need constantly to move, adjusts vehicle body position, measurement vehicle body and chassis frame relative size, up to completely with theoretical size one
Cause can welded connections；2nd, when connector is welded with vehicle body, chassis frame respectively, due to inconvenient operation, pad is inadequate
It is fully firm, and discontinuity, stress concentration phenomenon is easily produced, so as to cause vehicle frame and vehicle body fracture, cracking, is deposited
In very big potential safety hazard；3rd, after cathode electrophoretic coating vehicle body, chassis frame in connection, connector respectively with vehicle body, chassis vehicle
Frame secondary welding, causes vehicle body, chassis to be destroyed in the parts electrophoresis layer of junction, paint face, loses electrophoresis corrosion-resistant meaning
Justice；4th, because the anticorrosion process of junction is destroyed, the anti-corrosion measure of remedying in later stage is difficult to handle in place, when vehicle runs one section
After phase, corrosion phenomena just occurs in connecting portion, influences bonding strength.
The content of the invention
For disadvantage mentioned above, the invention provides attachment structure and its connection on a kind of half bearing type passenger car vehicle body and chassis
Method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of half bearing type passenger car vehicle body and the attachment structure on chassis, including body platform skeleton and chassis frame, it is described
The beam surface upper of body platform skeleton is welded with upper cover plate, forms closed cavity；Fixing hole, car are set on crossbeam lower surface
Welding reinforcing plate and nut limiting bracket above body floor crossmember fixing hole；It is welded with the outside of the crossbeam of the chassis frame both sides solid
Determine bearing, fixing hole is set on the hold-down support；The body platform crossbeam on the hold-down support on chassis frame with passing through spiral shell
Bolt is fixed.
Crossbeam in the body platform skeleton is by steel plate punched molding part structure；In beam surface upper butt-joint throat thickness
For δ 1.5/Q235-A.F upper cover plates, closed cavity is formed with punch forming part.
Correct position sets ∮ 14mm fixing holes, the upper cover plate of crossbeam on the outside of crossbeam lower floor steel plate correspondence chassis frame
Access hole is opened up at correspondence fixing hole.
The upper surface welding reinforcing plate in lower floor's Interal fixation hole of the crossbeam, the reinforcing plate uses δ 4/Q235-A.F steel
Plate, opens up ∮ 14mm through holes on steel plate；Hex nut is set in the through hole, and the nut limiting bracket is welded under crossbeam
Layer upper surface of steel plate, hex nut is completely covered by.
The U-shaped shape of nut limiting bracket, the horizontal bending laterally of its relative both ends, the base of support is provided with
Screw, the remaining both sides of support are provided with baffle plate.
The logical nut limiting bracket in be wider than hex nut to the length of side, less than hex nut to angular diameter.
The hold-down support is located at the U-shaped plates of two side plate upper sides and perpendicular by two side plates being oppositely arranged, level
The straight fixed plate for being located at two side plate end faces is constituted, and the hold-down support is molded using δ 5.0/Q235-A.F steel plate puncheds, U-shaped plate
Upper setting ∮ 20mm fixing holes.
A kind of half bearing type passenger car vehicle body and the connection method on chassis, the connection method comprise the steps：
Half bearing vehicle body is lifted into directly over chassis, then fallen, until body platform crossbeam and chassis hold-down support
It is in contact, position around adjustment vehicle body；
When the hole of any one in floor crossmember is consistent with corresponding chassis hold-down support hole, hex bolts, plain cushion are used
Circle, spring washer and hex nut carry out pre-connection, using the same manner to diagonal hex nut and hold-down support pre-connection；
Whether whether consistent with the hold-down support of lower section other nuts are reexamined, if inconsistent, to vehicle body and hexagonal
Nut is finely adjusted, untill all bolts can all be connected with nut；
Finally, all hex bolts and nut are tightened, screw-down torque is performed by 65Nm and marks colour code.
Beneficial effects of the present invention：The present invention is pacified by the fastening of hold-down support on body platform crossbeam and chassis frame
Dress, with the registration that is fastened and connected, production efficiency is obviously improved, connection uniform force, the guaranteed feature of bonding strength, also
Improve vehicle service life.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the crossbeam front view in the body platform skeleton of the present invention；
Fig. 2 is the crossbeam top view in the body platform skeleton of the present invention；
Fig. 3 is nut limiting bracket front view of the invention；
Fig. 4 is nut limiting bracket top view of the invention；
Fig. 5 is the hold-down support front view on the chassis frame of the present invention；
Fig. 6 is the hold-down support side view on the chassis frame of the present invention；
Fig. 7 is the hold-down support top view on the chassis frame of the present invention；
Fig. 8 is that the hold-down support of middle cross beam of the present invention and chassis frame is fastened and connected front view；
Fig. 9 is the partial enlarged drawing at A in Fig. 8；
Figure 10 is the view in present invention fastening；
Figure 11 is the floor frame and chassis view after present invention fastening.
Embodiment
Technical scheme is clearly and completely described below in conjunction with embodiment, it is clear that described reality
It is only a part of embodiment of the invention to apply example, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
All other embodiment that logical technical staff is obtained under the premise of creative work is not made, belongs to what the present invention was protected
Scope.
A kind of half bearing type passenger car vehicle body and the attachment structure on chassis, referring to Fig. 1-11, including body platform skeleton and bottom
Disk hold-down support；The crossbeam of body platform skeleton is molded using δ 1.5/Q235-A.F steel plate puncheds, in beam surface upper welding
Cover plate, forms closed cavity, increases transverse beam rigidity；Set on crossbeam lower surface on fixing hole, body platform crossbeam fixing hole
Fang Zengjia welds reinforcing plate and nut limiting bracket, and movable nut is placed in inside；
Several or tens of hold-down supports are welded on the outside of the crossbeam of chassis frame both sides, hold-down support uses δ 5.0/Q235-A.F
Steel plate punched is molded, and sets fixing hole；
Vehicle body is integrally fallen on behind chassis, several on body platform crossbeam or dozens of hex nut and consolidating on chassis frame
Determine on bearing to fix by hex bolts, reach the purpose that vehicle body is connected with chassis.
Technical solution of the present invention changes existing bus deck frame design theory, first by bus body floor frame
Crossbeam 1 is changed to δ 1.5/Q235-A.F by rectangle tubular construction, and (" δ 1.5/Q235-A.F " expressions are that Material texture is Q235, material
Thickness is 1.5 millimeters of steel plate, similarly hereinafter) steel plate punched molding part structure (U-shape structure)；It is thick in the upper surface butt-joint welding of crossbeam 1
Spend for δ 1.5/Q235-A.F upper cover plates, with punch forming part formation closed cavity, increase transverse beam rigidity；In crossbeam lower floor steel plate
Correct position sets and opens up access hole at ∮ 14mm fixing holes, the upper cover plate correspondence fixing hole of crossbeam 1 on the outside of correspondence chassis frame,
As shown in Figure 1-2；
Referring to Fig. 8-9, reinforcing plate 11 is welded in the upper surface in lower floor's Interal fixation hole of crossbeam 1, the reinforcing plate 11 uses δ
4/Q235-A.F steel plates, open up ∮ 14mm through holes on steel plate；Then M10 hex nuts 4 are placed on the top of reinforcing plate 11, connect
And nut limiting bracket 12 is welded on crossbeam lower floor upper surface of steel plate, M10 hex nuts are completely covered by；
Referring to Fig. 3, Fig. 4, the U-shaped shape of nut limiting bracket 12, the horizontal bending, support laterally of its relative both ends
Base be provided with screw, the remaining both sides of support are provided with baffle plate；By the structure of ingehious design nut limiting bracket 12, make in it
Be wider than M10 hex nuts to length of side S (15.39mm), less than M10 hex nuts to angular diameter e (17.77mm), design
A width of 17.3mm in nut limiting bracket 12, interior a height of 13.5mm, make it play to the same of M10 hex nut position-limiting actions
When, can also be to hex nut fine position；
Then, floor crossmember correspondence position is welded and fixed bearing 2, as illustrated in figs. 5-7, hold-down support on the outside of chassis frame
2 are located at the U-shaped plate 23 of two side plate upper sides by two side plates 21 being oppositely arranged, level and are located at two side plate ends vertically
The fixed plate 22 in face is constituted, and the hold-down support 2 is molded using δ 5.0/Q235-A.F steel plate puncheds, and ∮ 20mm are set on U-shaped plate 23
Fixing hole；Be welded with channel-section steel 13 (i.e. chassis frame crossbeam) in the fixed plate for the hold-down support 2 being oppositely arranged, two channel-section steels it
Between engage main beam 14；
A kind of half bearing type passenger car vehicle body and the connection method on chassis, vehicle body, chassis to application and prepackage completion enter
Row spiral-lock, half bearing vehicle body is lifted into directly over chassis, then fallen, until body platform crossbeam and chassis hold-down support phase
Position around contact, adjustment vehicle body, when the hole of any one in floor crossmember is consistent with corresponding chassis hold-down support hole
When, carried out using M10x45mm (10.9 grades of bolt strength) hex bolts 3, plain washer 5, spring washer 6 and M10 hex nuts 4
Pre-connection, using the same manner to diagonal hex nut and hold-down support pre-connection, referring to Figure 10, Figure 11；Reexamine other
Whether whether nut consistent with the hold-down support of lower section, if inconsistent, vehicle body and M10 nuts is finely adjusted, Zhi Daosuo
Untill thering is bolt to be all connected with nut.
Finally, all hex bolts and nut are tightened, screw-down torque is performed by 65Nm and marks colour code.
There is following obvious advantage in the present invention：
1st, production efficiency is obviously improved, and the spiral-lock time brings up to 1 people of separate unit for 40 minutes 20 minutes by 2 people of separate unit；
2nd, bolt is tightened by moment of torsion standard requirement, connection uniform force, bonding strength are guaranteed；
3rd, vehicle body, each connection member electrophoresis layer in chassis, paint face are remained intact, and lift vehicle service life；
4th, be fastened and connected registration, is fastened using the attachment structure, and vehicle body all around fastens scale error with chassis
No more than 3mm.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details of narration, it is only described embodiment that the invention is not limited yet.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (8)
1. a kind of half bearing type passenger car vehicle body and the attachment structure on chassis, including body platform skeleton and chassis frame, its feature
It is：
The beam surface upper of the body platform skeleton is welded with upper cover plate, forms closed cavity；Set on crossbeam lower surface
Welding reinforcing plate and nut limiting bracket above fixing hole, body platform crossbeam fixing hole；
Hold-down support is welded with the outside of the crossbeam of the chassis frame both sides, fixing hole is set on the hold-down support；
The body platform crossbeam on the hold-down support on chassis frame with being bolted.
2. a kind of half bearing type passenger car vehicle body according to claim 1 and the attachment structure on chassis, it is characterised in that：It is described
Crossbeam in body platform skeleton is by steel plate punched molding part structure；It is δ 1.5/Q235- in beam surface upper butt-joint throat thickness
A.F upper cover plates, with punch forming part formation closed cavity.
3. a kind of half bearing type passenger car vehicle body according to claim 1 and the attachment structure on chassis, it is characterised in that：It is described
Correct position is set at ∮ 14mm fixing holes, the upper cover plate correspondence fixing hole of crossbeam on the outside of crossbeam lower floor steel plate correspondence chassis frame
Open up access hole.
4. a kind of half bearing type passenger car vehicle body according to claim 1 and the attachment structure on chassis, it is characterised in that：It is described
The upper surface welding reinforcing plate in lower floor's Interal fixation hole of crossbeam, the reinforcing plate uses δ 4/Q235-A.F steel plates, opened on steel plate
If ∮ 14mm through holes；Hex nut is set in the through hole, and the nut limiting bracket is welded on crossbeam lower floor upper surface of steel plate,
Hex nut is completely covered by.
5. a kind of half bearing type passenger car vehicle body according to claim 4 and the attachment structure on chassis, it is characterised in that：It is described
The U-shaped shape of nut limiting bracket, its relative both ends horizontal bending laterally, the base of support is provided with screw, support
Remaining both sides are provided with baffle plate.
6. a kind of half bearing type passenger car vehicle body according to claim 4 and the attachment structure on chassis, it is characterised in that：It is described
Be wider than in logical nut limiting bracket hex nut to the length of side, less than hex nut to angular diameter.
7. a kind of half bearing type passenger car vehicle body according to claim 1 and the attachment structure on chassis, it is characterised in that：It is described
Hold-down support is located at the U-shaped plate of two side plate upper sides by two side plates being oppositely arranged, level and is located at two sides vertically
The fixed plate of plate end face is constituted, and the hold-down support is molded using δ 5.0/Q235-A.F steel plate puncheds, sets ∮ 20mm to consolidate on U-shaped plate
Determine hole.
8. a kind of half bearing type passenger car vehicle body and the connection method on chassis, it is characterised in that：The connection method comprises the steps：
Half bearing vehicle body is lifted into directly over chassis, then fallen, until body platform crossbeam connects with chassis hold-down support
Touch, position around adjustment vehicle body；
When the hole of any one in floor crossmember is consistent with corresponding chassis hold-down support hole, hex bolts, plain washer, bullet are used
Spring packing ring carries out pre-connection with hex nut, using the same manner to diagonal hex nut and hold-down support pre-connection；
Whether whether consistent with the hold-down support of lower section other nuts are reexamined, if inconsistent, to vehicle body and hex nut
It is finely adjusted, untill all bolts can all be connected with nut；
Finally, all hex bolts and nut are tightened, screw-down torque is performed by 65Nm and marks colour code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409269.9A CN107140030B (en) | 2017-06-02 | 2017-06-02 | Connecting structure and method for body and chassis of semi-load type passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409269.9A CN107140030B (en) | 2017-06-02 | 2017-06-02 | Connecting structure and method for body and chassis of semi-load type passenger car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107140030A true CN107140030A (en) | 2017-09-08 |
| CN107140030B CN107140030B (en) | 2023-03-24 |
Family
ID=59780411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409269.9A Active CN107140030B (en) | 2017-06-02 | 2017-06-02 | Connecting structure and method for body and chassis of semi-load type passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107140030B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017279A (en) * | 2018-09-30 | 2018-12-18 | 安徽安凯汽车股份有限公司 | A kind of postposition car urea tank fixed structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109017279A (en) * | 2018-09-30 | 2018-12-18 | 安徽安凯汽车股份有限公司 | A kind of postposition car urea tank fixed structure |
| CN109017279B (en) * | 2018-09-30 | 2024-04-02 | 安徽安凯汽车股份有限公司 | Rear-mounted passenger train urea jar fixed knot constructs |
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| Publication number | Publication date |
|---|---|
| CN107140030B (en) | 2023-03-24 |
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