CN202728349U - Structure for connecting car body and chassis of passenger car - Google Patents
Structure for connecting car body and chassis of passenger car Download PDFInfo
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- CN202728349U CN202728349U CN 201220216508 CN201220216508U CN202728349U CN 202728349 U CN202728349 U CN 202728349U CN 201220216508 CN201220216508 CN 201220216508 CN 201220216508 U CN201220216508 U CN 201220216508U CN 202728349 U CN202728349 U CN 202728349U
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Abstract
The utility model discloses a structure for connecting a car body and a chassis of a passenger car, which fully utilizes the characteristics of a grid of a car body base frame of the passenger car. A certain space is reserved between the grid of the base frame and a chassis car frame; and after the whole car body falls down the surface of the chassis, the car body base frame surrounds the chassis car frame, and a connection channel steel is inserted in the reserved space between the grid of the base frame and the chassis car frame and is respectively welded on the car body base frame and the chassis car frame. The connection channel steel is manufactured by a Q235/Q345 steel plate with the thickness of 5mm in a punch forming manner and is 45mm in width, the reserved space on each side of the grid of the car body base frame and the chassis car frame is defined to be 15.5mm, and the size of an opening of the lower middle part of the car body base frame is defined to be 890mm. The structure for connecting the car body and the chassis of the passenger car, disclosed by the utility model, can avoid disadvantages of complex structure, insufficient space, low efficiency and the like caused by bolt connection or welding connection of the car body and the chassis at a side circumference by utilizing a manner of direct welding connection with the chassis car frame.
Description
Technical field
The utility model relates to a kind of the utility model and relates to passenger vehicle assembly technique field, relates in particular to a kind of bus body and chassis connection structure.
Background technology
Passenger vehicle is pressed the body structure design and stressing conditions is divided, and can be divided into Non-carrying type, half bearing-type, bearing-type three types.The passenger vehicle of each passenger vehicle manufacturer production mainly is half bearing-type passenger vehicle at present, and vehicle body and chassis two large divisions are arranged, and the two is for being rigidly connected.
The traditional processing technology of half bearing-type passenger vehicle is being welded of the enterprising driving body of chassis assembly assembly, and then the chassis will enter together Painting Shop in company with vehicle body and carry out car body coating, remain the assembling of interior exterior trim and electric component after application is finished again.This technique is owing to welding, spraying, high temperature etc. may damage chassis plastics and Rubber Parts, and the restriction of production cycle suspension chassis, therefore only is suitable for the less manufacturing enterprise of manufacturing scale.
Present development tendency is that bus body and chassis are made respectively, and the body assembly of application completion is connected with chassis assembly again, carries out the component assembles such as interior exterior trim and electrical equipment.This mode is because can advanced driving body production in without the situation on chassis, can conveniently weld, the construction of application, is convenient to carry out the advanced technologies such as the whole phosphatization of vehicle body, spraying, and production efficiency is high, is suitable for large-scale production.This vehicle body and chassis separation type are produced attaches together and method of attachment is committed step at last, and it affects intensity and the distribution of force of car load.At present the domestic producer that has carries out bolt and connects technique, being welded to connect again to body side wall place and body side wall skeleton at chassis frame welding auxiliary stand of having.These two kinds of method techniques and complex structure, production efficiency are not high.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, the connection structure on a kind of bus body and chassis is provided, its adopts directly and the chassis frame welding connecting mode, and bolt is connected or is welded to connect the shortcomings such as complex structure, the space of bringing are inadequate, efficient is low at the gusset place in the time of can avoiding vehicle body to engage with the chassis.
To achieve these goals, the utility model adopts following technical scheme:
A kind of bus body and chassis connection structure, it comprises vehicle body and chassis, vehicle body integral body is fallen on the chassis, the body understructure of vehicle body surrounds the chassis frame on chassis, be provided with grid in the body understructure both sides, body understructure grid and chassis frame leave the gap, insert at least one between body understructure grid and the chassis frame gap and connect channel-section steel, three's weld together.
The preset clearance size of described body understructure and chassis frame be connected the measure-alike of channel-section steel, also be reserved with the gap between body understructure front and back ends and the chassis frame, gap length be connected the measure-alike of channel-section steel
It is U-shaped that described connection channel-section steel adopts the thick Q235 of 5mm or Q345 steel plate stamping to be pressed into, and it highly is 45mm, and length is 350mm, type, and the preset clearance of described body understructure grid and the every side of chassis frame is decided to be 15.5mm, and the size of intermediate openings is decided to be 890mm under the body understructure.
The beneficial effects of the utility model: a kind of bus body and chassis connection structure adopt directly and the chassis frame welding connecting mode, and bolt is connected or is welded to connect the shortcomings such as complex structure, the space of bringing are inadequate, efficient is low at the gusset place in the time of can avoiding vehicle body to engage with the chassis.
Description of drawings
Fig. 1 is body framwork;
Fig. 2 is the middle part section drawing of body framwork;
Fig. 3 is chassis assembly (syllogic);
Fig. 4 is vehicle frame grid scheme drawing;
Fig. 5 is for connecting the channel-section steel lateral plan;
Fig. 6 is for connecting the channel-section steel front elevation;
Fig. 7 is the johning knot composition after car is closed on vehicle body and chassis;
Fig. 8 is the connection structure C-C cutaway view after car is closed on vehicle body and chassis;
Fig. 9 is the left side elevation view after car is closed on vehicle body and chassis.
Wherein, 1, front wall frame, 2, roof skeleton, 3, side wall frame, 4, underframe, 5, rear wall frame, 6, underframe grid, 7, chassis frame, 8, the vehicle frame grid, 9, connect channel-section steel, 10, back axle line of centers, 11, the front axle centre line, 12, the front section of vehicle frame assembly, 13, vehicle frame stage casing assembly, 14, vehicle frame back segment assembly.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Domestic more than 6 meters passenger vehicle body framwork is all arranged, and the main material of body framwork is rectangular steel pipe, i.e. shaped steel.What body framwork bore Main Load is underframe, also claims floor frame, is combined because underframe and floor frame are actually that design produces.Underframe is comprised of grid one by one in the horizontal, and the load such as so both satisfied the suffered cross bending of vehicle body, reverse has strengthened the rigidity of vehicle body cross-sectional plane, has also satisfied storage room, fuel tank, storage battery etc. and has used function.
Carrying and installation chassis parts are played by vehicle frame in passenger vehicle syllogic chassis, and fore suspension and rear suspension, driving engine etc. is installed on the chassis frame 7.Realized by chassis frame 7 with being connected also of vehicle body on the chassis.Chassis frame 7 is comprised of front section of vehicle frame assembly 12, vehicle frame stage casing assembly 13, vehicle frame back segment assembly 14.
A kind of bus body and chassis connection structure, it comprises vehicle body and chassis, vehicle body integral body is fallen on the chassis, the body understructure of vehicle body surrounds the chassis frame 7 on chassis, be provided with grid in the body understructure both sides, body understructure grid 6 and chassis frame 7 leave the gap, insert at least one between body understructure grid 6 and chassis frame 7 gaps and connect channel-section steel 9, three's weld together.So not only guarantee efficient but also guaranteed Joint strenght.
The key point of described structure is that body understructure 4 is the sizes that are connected channel-section steel 9 with the preset clearance size of chassis frame 7.Be to guarantee Joint strenght, connect channel-section steel 9 and adopt the thick Q235 of 5mm or the moulding of Q345 steel plate punched that the width 45mm that connects channel-section steel 9 had not only guaranteed the containing amount of body understructure grid but also guaranteed to be unlikely to affect the space of storage room.To be generally 864mm wide because of passenger-carrying chassis vehicle frame 7, the accuracy of manufacture of considering body framwork is not very high (because mainly being that shaped steel is welded), the preset clearance of body understructure and chassis frame 7 every sides is decided to be 15.5mm, the size of intermediate openings under the body understructure is decided to be 890mm.
The main bearing part of half bearing vehicle body is body framwork, and other does not stress because being mainly ornamental trimming substantially such as interior exterior skin etc., does not perform an analysis at this.
As shown in Figure 1, 2, can underframe during the body framwork assembly welding 4 carry out closing up of side wall frame 3, roof skeleton 2, front wall frame 1, rear wall frame 5 for the basis, then carry out the welding of covering, welded attachment.Enter after the application can according to the process condition of manufacturing enterprise to the vehicle body of finishing all welded attachments carry out whole phosphatization, electrophoresis, the coating process such as toast, spray paint.
The vehicle body that application is finished is sling with crane, slowly fallen after being transported to directly over the chassis, about after falling on the chassis, carrying out again, the part of front and back moves, to guarantee the relative dimensions of designing requirement.Wherein the left and right directions key be guarantee the outer of body side wall skeleton on earth the range difference of jiggering frame 7 be no more than 3 mm, and the preset clearance of body understructure 4 and chassis frame 7 is exactly in order can to adjust according to vehicle body or chassis manufacturing errors and local deformation.Fore-and-aft direction generally can carry out positive justification with vehicle frame grid 8 according to front axle centre line 11 and back axle line of centers 10 or underframe grid 6.
Be chassis assembly (syllogic) and vehicle frame grid scheme drawing such as Fig. 3,4.
Be connection channel-section steel figure such as Fig. 5,6.
Shown in Fig. 7,8, about fitting good and adjust in vehicle body and chassis, behind the front and back position, can with connecting channel-section steel 9 from the preset clearance of insertion underframe 4 in below with chassis frame 7, such as Fig. 4, then will connect channel-section steel 9 and weld with body understructure and chassis frame 7 respectively.To long grid place, junction can every place with up and down 2 connect channel-section steels 9, short available 1 in junction surface behind the bridge before or after the propons is connected channel-section steel 9.
After all welding was finished, the vehicle body that originally separated and chassis just were connected channel-section steel 9 and unite two into one fully on stressed and function by being distributed in all around one of vehicle, become a car load, as shown in Figure 9.
Although above-mentionedly by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. a bus body and chassis connection structure, it comprises vehicle body and chassis, vehicle body integral body is fallen on the chassis, the body understructure of vehicle body surrounds the chassis frame on chassis, be provided with grid in the body understructure both sides, it is characterized in that, body understructure grid and chassis frame leave the gap, at least insert one between body understructure grid and the chassis frame gap and connect channel-section steel, three's weld together.
2. as claimed in claim 1 bus body and chassis connection structure, it is characterized in that, the preset clearance size of described body understructure and chassis frame be connected the measure-alike of channel-section steel, also be reserved with the gap between body understructure front and back ends and the chassis frame, gap length be connected the measure-alike of channel-section steel.
3. as claimed in claim 1 bus body and chassis connection structure, it is characterized in that, described connection channel-section steel adopts the thick Q235 of 5mm or Q345 steel plate stamping to be pressed into U-shaped, it highly is 45mm, length is 350mm, type, the preset clearance of described body understructure grid and the every side of chassis frame is decided to be 15.5mm, and the size of intermediate openings is decided to be 890mm under the body understructure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216508 CN202728349U (en) | 2012-05-15 | 2012-05-15 | Structure for connecting car body and chassis of passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216508 CN202728349U (en) | 2012-05-15 | 2012-05-15 | Structure for connecting car body and chassis of passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202728349U true CN202728349U (en) | 2013-02-13 |
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ID=47654078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220216508 Expired - Fee Related CN202728349U (en) | 2012-05-15 | 2012-05-15 | Structure for connecting car body and chassis of passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202728349U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386131A (en) * | 2014-11-25 | 2015-03-04 | 安徽安凯汽车股份有限公司 | Structure and method for connecting medium body and chassis of half-loading bus |
| CN107140028A (en) * | 2017-06-20 | 2017-09-08 | 安徽安凯汽车股份有限公司 | A kind of underframe of coach stage casing supporting mechanism |
| CN113320601A (en) * | 2021-07-19 | 2021-08-31 | 安徽安凯汽车股份有限公司 | Mixed material structure for full-bearing passenger car |
-
2012
- 2012-05-15 CN CN 201220216508 patent/CN202728349U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386131A (en) * | 2014-11-25 | 2015-03-04 | 安徽安凯汽车股份有限公司 | Structure and method for connecting medium body and chassis of half-loading bus |
| CN107140028A (en) * | 2017-06-20 | 2017-09-08 | 安徽安凯汽车股份有限公司 | A kind of underframe of coach stage casing supporting mechanism |
| CN113320601A (en) * | 2021-07-19 | 2021-08-31 | 安徽安凯汽车股份有限公司 | Mixed material structure for full-bearing passenger car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |