CN111645757A - Novel passenger car body structure - Google Patents
Novel passenger car body structure Download PDFInfo
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- CN111645757A CN111645757A CN202010171406.1A CN202010171406A CN111645757A CN 111645757 A CN111645757 A CN 111645757A CN 202010171406 A CN202010171406 A CN 202010171406A CN 111645757 A CN111645757 A CN 111645757A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
- B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D31/00—Superstructures for passenger vehicles
- B62D31/02—Superstructures for passenger vehicles for carrying large numbers of passengers, e.g. omnibus
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- Combustion & Propulsion (AREA)
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- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a novel passenger car body structure, which comprises a front wall assembly, a rear wall assembly, a side wall framework assembly, a top cover assembly and a floor assembly, wherein two ends of the side wall framework assembly are respectively connected with the front wall assembly and the rear wall assembly, two ends of the top cover assembly are respectively connected with the upper ends of the front wall assembly and the rear wall assembly, the lower ends of the front wall assembly and the rear wall assembly are respectively connected with two ends of the floor assembly, the floor assembly is connected with the top cover assembly through the side wall framework assembly, the side wall framework assembly comprises a plurality of stress rings which are arranged at intervals, a side window top beam and a waist beam which are fixed between the stress rings, and a skirt bottom beam which is positioned below the waist beam, the stress rings comprise upright post parts positioned at two sides and a connecting cross beam part positioned at the top, each stress ring is formed by bending a section bar, and the lower ends of the stress rings are connected with the floor assembly. The novel passenger car body structure disclosed by the invention has better rigidity and strength and can decompose the stress of the chassis.
Description
Technical Field
The invention relates to the technical field of passenger car bodies, in particular to a novel passenger car body structure.
Background
The city passenger car plays a very important role in the current city traffic network, and with the development of city passenger transportation, the traffic accidents of the passenger car every year also bring great threat and hidden danger to the safety of our lives and properties. As the city passenger car generally has larger passenger capacity, once a traffic accident happens, the phenomenon of 'group death and group injury' is possibly caused, a large amount of property loss is also caused, and very serious negative social influence is caused.
The accident types of the city passenger car mainly include the following four types: frontal collision, side collision, rear-end collision, and rollover collision. However, due to the structural characteristics of the urban passenger car during design, both front collision and rear-end collision have better passive safety design, and the harm to passengers caused by side collision and passenger car rollover accidents is far greater than that of the two collision accidents.
And because the demand of passengers getting on and off, the existing urban passenger car mostly adopts a low floor and a low entrance, the middle front part of the passenger car is a region with one-stage stepping, the passenger carrying capacity is huge in the peak period of the stream of people, and the chassis structure can not directly meet the strength requirement, so that the car body structure is required to be taken as a stress piece to be considered, and partial stress of the chassis is digested through the whole car body.
The traditional full-load-bearing type urban bus body is of a space truss structure, and various profiles are usually assembled and welded together in the actual production process. The rigidity, the strength and the torsional rigidity of the vehicle body are not ideal due to a lot of welding seams and welding deformation on the whole vehicle body. Particularly, when side collision or rollover accidents occur, the closed ring formed by welding and the deficiency of the overall strength of the bus body can cause immeasurable serious consequences of the passenger car. Therefore, a novel passenger car body structure which has better rigidity and strength and can decompose chassis stress is urgently needed to be invented.
Chinese patent application No. CN200910097395.0, filed 2009, 04/09/h, entitled "full-load-bearing type bus body structure", discloses a full-load-bearing type bus body structure, which comprises a front face framework, a rear wall framework, a left wall framework, a right wall framework, a roof framework and an underframe framework, wherein the front face framework, the rear wall framework, the left wall framework, the right wall framework, the roof framework and the underframe framework are composed of longitudinal beams, cross beams, upright columns and inclined struts, and the entire frame structure is made to be a whole closed frame structure, and the upright columns, the longitudinal beams, the cross beams, the inclined struts, the upright columns or other rigid welding parts are utilized to make the whole frame structure run through from front to back, be connected. The patent claims that the disclosed structural form enables the force to be transmitted and decomposed to the whole vehicle body through the effective connection between the parts when the whole vehicle is at any position, thereby avoiding the deformation of the vehicle body framework caused by local overload and ensuring the personal safety of passengers in the vehicle. But its floor skeleton transmits the atress of chassis to whole automobile body through with through-type stand, and at this moment, whole automobile body is except that floor skeleton, and the stand links to each other with the top cap through welded mode, has stress concentration in the junction, and the junction is volatile when the vehicle takes place the side direction and strikes or the accident of turning on one's side for member's safety can not obtain guaranteeing in the car.
Disclosure of Invention
The invention provides a novel passenger car body structure with good rigidity and strength of a car body and capability of decomposing chassis stress, aiming at overcoming the problems that the strength and rigidity of the car body of a city passenger car are not ideal in the prior art, and particularly the strength and rigidity of the whole car body structure of the car body are not ideal when a side-turning accident or side impact occurs.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel passenger car body structure comprises a front wall assembly, a rear wall assembly, a side wall framework assembly, a top cover assembly and a floor assembly, wherein two ends of the side wall framework assembly are respectively connected with the front wall assembly and the rear wall assembly, two ends of the top cover assembly are respectively connected with the upper ends of the front wall assembly and the rear wall assembly, the lower ends of the front wall assembly and the rear wall assembly are respectively connected with two ends of the floor assembly, the floor assembly is connected with the top cover assembly through the side wall framework assembly, the novel passenger car body structure is characterized in that,
the side wall framework assembly comprises a plurality of stress rings arranged at intervals, a side window top beam and a waist beam which are fixed between the stress rings, and a skirt bottom beam positioned below the waist beam, wherein the stress rings comprise upright post parts positioned on two sides and a connecting cross beam part positioned at the top, each stress ring is formed by bending one section bar, and the lower end of each stress ring is connected with the floor assembly.
In the above scheme, the side wall frame assembly is connected with the floor assembly, and the side wall frame assembly adopts the stress ring of integrated into one piece for the stress of the floor assembly can be well shared by other structures of the vehicle body, the integrated structure has good integrity, is not easy to cause local failure, and especially can better convert the stress of the side face to other vehicle body structures when side impact or rollover accidents occur.
Preferably, the cross section of the stress ring is groove-shaped, flanges on two sides of the stress ring extend to the outer side of the groove to form a welding edge, the welding edge is parallel to the bottom surface of the groove in the cross section of the stress ring, and an opening of the groove in the cross section of the stress ring faces the interior of the vehicle. The stress ring adopts the sectional material of ' omega ' shape, and the section bar main part is similar with the channel-section steel, because the existence of its pterygoid lamina makes the passenger train when taking place to turn on one's side, and its side also has good atress, and the rigidity of automobile body, intensity obtain favorable assurance, and the welding of automobile body structure is favorable to the welding of both sides, and open section structure simultaneously facilitates for the anticorrosive treatment realization, and during the electrophoresis, paint electrolyte contacts automobile body skeleton inside face more easily.
Preferably, the top cover assembly comprises a plurality of integral top cover cross beams, top cover side longitudinal beams positioned on the left side and the right side of the top cover assembly and a top cover middle longitudinal beam positioned in the middle of the top cover assembly, the cross section of the top cover is the same as that of the stress ring, two ends of each top cover cross beam are respectively connected with the side window top beams on two sides of the side wall assembly, and the top cover side longitudinal beams are connected with the stress ring connecting cross beam part and the top cover cross beams at the top in the length direction of the vehicle body and are used for connection between the top cover cross beams and the stress ring connecting cross beams and connection between the adjacent stress ring connecting cross beams. The roof assembly is including roof middle longitudinal beam and roof side longitudinal beam to connect the connection crossbeam part of each atress ring through the longeron of sectional type to set up the roof crossbeam and strengthen as the structure at top between the atress ring, the automobile body bulk strength of so design is higher.
Preferably, the cross sections of the top cover middle longitudinal beam and the top cover side longitudinal beam are groove-shaped, flanges on two sides of the top cover middle longitudinal beam extend to the outer side of the groove to form welding edges, the bottom surfaces of the grooves in the cross sections are parallel, openings of the grooves in the cross sections of the top cover middle longitudinal beam and the top cover side longitudinal beam face the inside of the vehicle, avoidance structures are arranged at two ends of the top cover middle longitudinal beam and the top cover side longitudinal beam and used for avoiding the welding edges of the top cover cross beam or the stress ring when the avoidance structures are connected with the top cover cross beam or. Longeron and top cap limit longeron cross section are the same with the atress ring in the top cap, and the effect is unanimous no longer repeated, and the tip of longeron and top cap limit longeron sets up in the top cap and dodges the structure and makes the automobile body when the welding, longeron and top cap limit longeron form with atress ring or top cap crossbeam assembling process in the top cap and dodge, the assembly of being convenient for.
Preferably, the top cover assembly further comprises a side window upper longitudinal beam, the side window upper longitudinal beam is located between the side window top beam and the top cover side longitudinal beam, and the side window upper longitudinal beam is used for connection between the top cover cross beam and the stress ring connecting cross beam and connection between the adjacent stress ring connecting cross beams.
Preferably, the inner side of the column part of the column stress ring is provided with a column reinforcing plate, and the column reinforcing plate is attached to the welding edge of the column part.
Preferably, the front wall assembly comprises a front face sub-assembly, a front door rear ring frame connected with the side wall frame assembly and a front wall top longitudinal beam for connecting the front face sub-assembly and the front door rear ring frame, the front face sub-assembly comprises a left front wall upright post, a right front window upright post, a front wall top beam, a front window upper beam, a front wall fixed bracket, a front window lower beam, a front wall middle beam and a front wall lower beam which are sequentially arranged from top to bottom, the two ends of the front wall top beam, the front window upper beam, the front wall middle beam and the front wall lower beam are respectively welded with the front wall upright posts on the two sides, the upper ends of the left front window lower column and the right front window lower column are connected with the front window lower beam, the lower ends of the front wall lower beam are connected with the two ends of the front wall lower beam, the front wall middle beam is welded on the left front window lower column and the right front wall lower column, the left front wall upright column and the front wall lower column are connected with the front wall side beam and the front wall side beam, the front wall side beam is located at the bottom of the front face sub-assembly, and the front wall side beam is located below the front windshield lower beam. The front wall assembly is connected with the side wall framework assembly through the front wall rear ring frame instead of being directly connected with the side wall framework through a longitudinal structural member, so that the strength of the joint of the two assemblies is enhanced; and the side intensity of the front wall assembly of the design is better.
Preferably, a front door reinforcing ring frame is arranged between the stressed ring at the foremost end of the side wall framework assembly and the front door rear ring frame of the front wall assembly, and the shape of the front door reinforcing ring frame is the same as that of the front door rear ring frame. The front door reinforcing ring frame is arranged at the connecting position of the front wall assembly and the side wall framework assembly, so that the strength of the front door is increased, and the sharing stress is enhanced.
Preferably, the rear wall assembly comprises a rear wall ring frame connected with the rear end of the side wall framework assembly, a guideboard upper cross beam, a guideboard lower cross beam, an air window lower cross beam, an upper door rest beam and side air window stand columns, wherein the two ends of the guideboard upper cross beam are connected with the rear wall ring frame, the middle part of the guideboard upper cross beam is parallel to the upper part of the rear wall ring frame, the guideboard lower cross beam is positioned below the guideboard upper cross beam, the air window lower cross beam is positioned below the guideboard lower cross beam, the upper door rest beam is positioned below the air window lower cross beam, the lower ends of the air window side stand columns are connected with the upper door rest beam, a connecting rest beam is arranged between the air window side stand columns and the rear wall ring frame, rear cabin door stand columns are arranged at the two sides of the upper door stand columns, and the rear wall ring frame. The rear wall assembly and the side wall framework assembly are connected through a rear wall ring frame to strengthen the strength of the joint of the two assemblies; the rear wall assembly is provided with the connecting shelf beam between the side upright post of the air window and the rear wall ring frame, the upright post of the rear door is connected with the rear wall ring frame by the upper bent beam and the lower bent beam, so that the strength of the side surface of the rear wall is enhanced, and the side surface stress can be well converted into the rear wall assembly when side impact or side rollover accidents occur.
Preferably, the floor assembly comprises a front floor framework, a middle floor framework, a rear floor framework and a floor through beam, and two ends of the floor through beam are connected with the side wall framework assembly.
The invention has the beneficial effects that: the stress ring which is integrally formed is adopted, so that the stress of the floor assembly can be well distributed to other structures of the vehicle body, the integral structure is good in integrity, local failure is not easy to occur, and particularly, the stress of the side face can be well converted to other vehicle body structures when side face collision or rollover accidents occur; the stress ring, the top cover beam, the top cover side longitudinal beam and the top cover middle longitudinal beam are all made of section bars with omega-shaped sections, the main bodies of the section bars are similar to channel steel, due to the wing plates, when the passenger car turns over, the side faces of the passenger car are also well stressed, the rigidity and the strength of the passenger car body are favorably ensured, the welding edges on the two sides are favorable for welding the structure of the passenger car body, meanwhile, the open section structure is convenient for realizing anticorrosion treatment, and during electrophoresis, paint electrolyte is more easily contacted with the inner surface of the framework of the passenger car body; the front wall assembly and the rear wall assembly are fixedly connected with the side wall framework assembly through corresponding ring frames, and the strength of the joint of the vehicle body is greatly increased by adopting the design of the ring frames, so that the strength of the vehicle body is increased; the front wall assembly is connected with the left side wall framework assembly and the right side wall framework assembly through a front door reinforcing ring frame, so that the strength and the sharing stress of the front door are increased; the reinforcing plate is added on the upright post part of the stress ring, the strength of the upright post part is increased, the strength and the rigidity are better, and particularly, when a side turning accident or side impact occurs, the upright post part is not easy to bend, so that passengers in the automobile are safer; the end parts of the longitudinal beam and the top cover side longitudinal beam in the top cover are provided with the avoidance structures, so that the longitudinal beam and the top cover side longitudinal beam in the top cover form avoidance in the assembling process with the stress ring or the top cover cross beam when the automobile body is welded, and the assembly is convenient.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a force ring of the present invention;
FIG. 3 is a schematic cross-sectional view of a force ring of the present invention;
FIG. 4 is a schematic illustration of a cowl assembly of the present disclosure;
FIG. 5 is a front elevational view of a cowl assembly of the present invention;
FIG. 6 is a schematic view of a rear enclosure assembly of the present invention;
FIG. 7 is a rear view of a rear enclosure assembly of the present invention;
FIG. 8 is a top view of the present invention;
FIG. 9 is an enlarged view at A in FIG. 8;
FIG. 10 is an enlarged view of the junction of a cowl assembly and a side panel frame assembly in accordance with the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention are clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present scheme, and are not construed as limiting the scheme of the present invention.
These and other aspects of embodiments of the invention will be apparent with reference to the following description and attached drawings. In the description and drawings, particular embodiments of the invention have been disclosed in detail as being indicative of some of the ways in which the principles of the embodiments of the invention may be practiced, but it is understood that the scope of the embodiments of the invention is not limited thereby. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., and "several" means one or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections, either mechanical or electrical, or communicating with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those skilled in the art
Example 1: as shown in fig. 1 and fig. 2, a novel passenger car body structure, including preceding enclose assembly 100, after enclose assembly 300, side wall skeleton assembly 200, top cap assembly 400 and floor assembly (not shown in the figure), the both ends of side wall skeleton assembly enclose the assembly with enclose the assembly after with preceding respectively and be connected, the both ends of top cap assembly enclose the upper end of assembly and after with preceding respectively and be connected, before enclose the lower extreme of assembly and enclose the assembly after with the both ends of floor assembly respectively and be connected, the floor assembly is connected with the top cap assembly through side wall skeleton assembly, wherein: the side wall framework assembly comprises a plurality of stress rings 210 arranged at intervals, a side window top beam 220 and a waist beam 230 fixed between the stress rings, and a skirt bottom beam 240 positioned below the waist beam, wherein the stress rings comprise upright column parts 211 positioned on two sides and a connecting beam part 212 positioned at the top, each stress ring is formed by bending a section bar, and the lower ends of the stress rings are connected with the floor assembly.
As shown in fig. 3, the cross section of the stress ring is groove-shaped, the flanges at both sides of the stress ring extend to the outside of the groove to form a welding edge 213, the welding edge is parallel to the bottom surface of the groove at the cross section of the stress ring, and the opening of the groove at the cross section of the stress ring faces the inside of the vehicle. The stress ring adopts the sectional material of ' omega ' shape, and the section bar main part is similar with the channel-section steel, because the existence of its pterygoid lamina makes the passenger train when taking place to turn on one's side, and its side also has good atress, and the rigidity of automobile body, intensity obtain favorable assurance, and the welding of automobile body structure is favorable to the welding of both sides, and open section structure simultaneously facilitates for the anticorrosive treatment realization, and during the electrophoresis, paint electrolyte contacts automobile body skeleton inside face more easily.
As shown in fig. 4 and 5, the front wall assembly includes a front face sub-assembly 110, a front door rear ring frame 120 for connecting with the side wall frame assembly, and a front wall top longitudinal beam 130 for connecting the front face sub-assembly with the front door rear ring frame, the front face sub-assembly includes left and right front wall pillars 111, left and right front window lower pillars 112, and a front wall top cross beam 113, a front window upper cross beam 114, a front top fixing bracket 115, a front window lower cross beam 116, a front wall middle cross beam 117, and a front wall lower cross beam 118 arranged in this order from top to bottom, the front wall top cross beam, the front window upper cross beam, the front top fixing bracket, and the front window lower cross beam are welded to the front wall pillars on both sides, the upper ends of the left and right front window lower pillars are connected to the front window lower cross beam, the lower ends of the front wall middle cross beam are connected to both ends of the front wall lower cross beam, the front wall middle cross beam is welded to the left and right front window lower pillars, enclose the stand about with it links to each other with preceding limit crossbeam 119b to enclose between the stand about through preceding side crossbeam 119a, preceding limit crossbeam is located before the face divides assembly bottom, preceding side crossbeam that encloses is located preceding wind window bottom crossbeam below.
As shown in fig. 6 and 7, the rear wall assembly includes a rear wall frame 310 connected to the rear end of the side wall frame assembly, a guideboard upper beam 321 whose two ends are connected to the rear wall frame and whose middle portion is parallel to the upper portion of the rear wall frame, a guideboard lower beam 322 located below the guideboard upper beam, an air window lower beam 323 located below the guideboard lower beam, an air window upper shelf 324 located below the air window lower beam, and air window side pillars 325 located at both sides, the upper end of the air window side pillar is connected to the guideboard upper beam, and its lower end is connected to the door upper shelf, a connecting shelf 331 is provided between the air window side pillars and the rear wall frame, rear door pillars 326 are provided at the lower end of the door upper shelf, and the rear door pillars are connected to the rear wall frame through upper bent beams 332 and lower bent beams 333.
As shown in fig. 8, the roof assembly includes a plurality of integral roof cross beams 410, roof side longitudinal beams 420 located on the left and right sides of the roof assembly, and a roof middle longitudinal beam 430 located in the middle of the roof assembly, the cross section of the roof is the same as that of the stress ring, two ends of the roof cross beam are respectively connected with the side window top beams on two sides of the side wall assembly, and the roof side longitudinal beam is connected with the stress ring connecting cross beam portion and the roof cross beam at the top in the vehicle body length direction for connection between the roof cross beam and the stress ring connecting cross beam and connection between the adjacent stress ring connecting cross beams. The roof assembly is including roof middle longitudinal beam and roof side longitudinal beam to connect the connection crossbeam part of each atress ring through the longeron of sectional type to set up the roof crossbeam and strengthen as the structure at top between the atress ring, the automobile body bulk strength of so design is higher.
The floor assembly comprises a front floor framework, a middle floor framework, a rear floor framework and a floor through beam, and two ends of the floor through beam are connected with the side wall framework assembly.
The connection between the various assemblies and components of the body structure is understood to be the conventional connection method used in the production of passenger cars, such as welding or riveting with aluminum angles, and in the embodiment, spot welding is used.
Specifically, the passenger car body structure shown in the embodiment is a body structure of a city passenger car, wherein a front wall assembly comprises a front face sub-assembly, a front door rear ring frame and a front wall top longitudinal beam, the front face sub-assembly and the front door rear ring frame are arranged in parallel in a front-to-rear mode, the middle of the front face sub-assembly is connected with the front wall top longitudinal beam, a front door assembly and a driver window assembly are further arranged between the front face sub-assembly and the front door rear ring frame, and a cabin door shelf beam, a driver window lower crosspiece and a front wall skirt are arranged below the driver window; the front wall assembly is followed by a side wall assembly which comprises a plurality of stress rings arranged at intervals, a side window top beam and a waist beam which are fixed between the stress rings, and a skirt bottom beam positioned below the waist beam, wherein the stress rings comprise upright post parts positioned at two sides and a connecting beam part positioned at the top, each stress ring is formed by bending a section bar, the lower end of the stress ring is connected with the floor assembly, a rear door component is arranged at the door side of the side wall framework assembly, the stress rings at the four-wheel positions of the side wall framework assembly are combined with the upright posts, the rest beams and the inclined struts to form a wheel structure of the side wall framework assembly, the upright post part of the stress ring positioned on the rear wheel structure is shorter to be matched with the rear wheel structure, a side wall rest beam arranged in parallel with the waist beam and a side wall upright post perpendicular to the waist beam are arranged between the waist beam and the skirt bottom beam of the side wall framework assembly in parallel, and the side wall, in the embodiment, the number of the layers is 2, and side wall diagonal braces are arranged between the side wall rest beam at the lower layer and the skirt bottom beam and between the side wall rest beam at the upper layer and the waist beam, so that the side strength of the side wall framework assembly of the vehicle body structure is enhanced due to the side wall rest beam, the side wall upright column and the side wall diagonal braces; the rear wall assembly comprises a rear wall ring frame connected with the rear end of the side wall framework assembly, a guideboard upper cross beam, a guideboard lower cross beam, an air window lower cross beam, an upper door rest beam and two side air window side stand columns, wherein the two ends of the guideboard upper cross beam are connected with the rear wall ring frame, the middle part of the guideboard upper cross beam is parallel to the upper part of the rear wall ring frame, the guideboard lower cross beam is positioned below the guideboard upper cross beam, the air window lower cross beam is positioned below the guideboard lower cross beam, the upper end of the air window side stand column is connected with the guideboard upper cross beam, the lower end of the air window side stand column is connected with the upper door rest beam, a connecting rest beam is arranged between the air window side stand column and the rear wall ring frame, rear door stand columns are arranged; the top cover assembly comprises a plurality of integral top cover penetrating cross beams, top cover side longitudinal beams positioned on the left side and the right side of the top cover assembly and a top cover middle longitudinal beam positioned in the middle of the top cover assembly, the cross section of the top cover is the same as that of the stress ring, two ends of each top cover cross beam are respectively connected with side window top beams on two sides of the side wall assembly, and the top cover side longitudinal beams are connected with the stress ring connecting cross beam part at the top and the top cover cross beams in the length direction of the vehicle body and are used for connection between the top cover cross beams and the stress ring connecting cross beams and connection between; the floor assembly comprises a front floor framework, a middle floor framework, a rear floor framework and a floor through beam, and two ends of the floor through beam are connected with the side wall framework assembly.
Furthermore, the connecting part of the side window top beam and the upright post part of the stress ring is provided with a reinforcing fillet, the connecting part of the waist beam and the upright post part of the stress ring is also provided with a reinforcing fillet, and the reinforcing fillet can effectively disperse stress and improve the strength of the side wall framework assembly due to the stress concentration part.
Further, the top cover assembly further comprises a side window upper longitudinal beam 440, the side window upper longitudinal beam is located between the side window top beam and the top cover side longitudinal beam, and the side window upper longitudinal beam is used for connection between the top cover cross beam and the stress ring connecting cross beam and connection between the adjacent stress ring connecting cross beams. And the side window upper longitudinal beam is arranged to strengthen the structural strength at the transition part of the top cover assembly and the side wall framework assembly.
Further, as shown in fig. 9, the cross sections of the top cover middle longitudinal beam and the top cover side longitudinal beam are groove-shaped, flanges at two sides of the top cover middle longitudinal beam extend to the outer side of the groove to form a welding edge, the bottom surfaces of the grooves at the cross sections of the top cover middle longitudinal beam and the top cover side longitudinal beam are parallel, the openings of the grooves at the cross sections of the top cover middle longitudinal beam and the top cover side longitudinal beam face the inside of the vehicle, and avoidance structures are arranged at two ends of the top cover middle longitudinal beam and the top cover side longitudinal beam and used for avoiding the welding edge. Longeron and top cap limit longeron cross section are the same with the atress ring in the top cap, and the effect is unanimous no longer repeated, and the tip of longeron and top cap limit longeron sets up in the top cap and dodges the structure and makes the automobile body when the welding, longeron and top cap limit longeron form with atress ring or top cap crossbeam assembling process in the top cap and dodge, the assembly of being convenient for. And longeron and top cap limit longeron are equipped with the welding reinforcing plate with the connection beam part department of linking to each other of atress ring in the top cap, the connection beam part of atress ring welds with the welding reinforcing plate earlier, then, the tip of longeron and top cap limit longeron in the top cap cooperates with the connection beam part of atress ring, longeron and top cap limit longeron weld with the welding reinforcing plate respectively in the top cap again, longeron and top cap limit longeron are connected with the top cap crossbeam is also with the same reason in the top cap, so adopt this kind of mode welding to make the welding of longeron and top cap limit longeron and the connection beam part or the top cap crossbeam of atress ring more firm in the top cap, welding.
Further, as shown in fig. 10, a front door reinforcing ring frame 140 is disposed between the force-bearing ring at the foremost end of the side wall frame assembly and the front door rear ring frame of the front wall assembly, and the shape of the front door reinforcing ring frame is the same as that of the front door rear ring frame. The front door reinforcing ring frame is arranged at the connecting position of the front wall assembly and the side wall framework assembly, so that the strength of the front door is increased, and the sharing stress is enhanced. Furthermore, a plurality of reinforcing blocks are arranged between the front door reinforcing ring frame and the stress ring, and the reinforcing blocks are fixed on the welding edges of the stress ring.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. A novel passenger car body structure comprises a front wall assembly, a rear wall assembly, a side wall framework assembly, a top cover assembly and a floor assembly, wherein two ends of the side wall framework assembly are respectively connected with the front wall assembly and the rear wall assembly, two ends of the top cover assembly are respectively connected with the upper ends of the front wall assembly and the rear wall assembly, the lower ends of the front wall assembly and the rear wall assembly are respectively connected with two ends of the floor assembly, the floor assembly is connected with the top cover assembly through the side wall framework assembly, the novel passenger car body structure is characterized in that,
the side wall framework assembly comprises a plurality of stress rings arranged at intervals, a side window top beam and a waist beam which are fixed between the stress rings, and a skirt bottom beam positioned below the waist beam, wherein the stress rings comprise upright post parts positioned on two sides and a connecting cross beam part positioned at the top, each stress ring is formed by bending one section bar, and the lower end of each stress ring is connected with the floor assembly.
2. The novel passenger car body structure as claimed in claim 1, wherein the stress ring has a cross section in the shape of a groove, flanges at two sides of the stress ring extend to the outside of the groove to form a welding edge, the welding edge is parallel to the bottom surface of the groove of the stress ring cross section, and the opening of the groove of the stress ring cross section faces the inside of the car.
3. The novel passenger car body structure of claim 2, wherein the roof assembly comprises a plurality of integral through roof beams, roof side longitudinal beams positioned on the left and right sides of the roof assembly, and a roof middle longitudinal beam positioned in the middle of the roof assembly, the cross section of the roof is the same as that of the stress ring, two ends of the roof beam are respectively connected with the side window top beams on two sides of the side wall assembly, and the roof side longitudinal beams are connected with the stress ring connecting beam part and the roof beam at the top in the car body length direction and are used for connection between the roof beam and the stress ring connecting beam and connection between the adjacent stress ring connecting beams.
4. The novel passenger car body structure as claimed in claim 3, wherein the top cover center longitudinal beam and the top cover side longitudinal beam are groove-shaped in cross section, flanges on two sides of the top cover center longitudinal beam and the top cover side longitudinal beam extend to the outside of the groove to form a welding edge, the bottom surfaces of the grooves in the cross section are parallel, the openings of the grooves in the cross section of the top cover center longitudinal beam and the top cover side longitudinal beam face the inside of the car, and avoidance structures are arranged at two ends of the top cover center longitudinal beam and the top cover side longitudinal beam and are used for avoiding the welding edge of the top cover cross beam or the stress ring when the avoidance structures are.
5. The novel passenger vehicle body structure of claim 3, wherein the roof assembly further comprises a side window upper longitudinal beam, the side window upper longitudinal beam is positioned between the side window top beam and the roof side longitudinal beam, and the side window upper longitudinal beam is used for connecting the roof cross beam and the stress ring connecting cross beam and connecting the adjacent stress ring connecting cross beam.
6. The novel passenger car body structure of claim 2, 3 or 4, wherein the inner side of the column part of the column stress ring is provided with a column reinforcing plate, and the column reinforcing plate is attached to the welding edge of the column part.
7. The novel passenger car body structure according to claim 1, wherein the front wall assembly comprises a front face sub-assembly, a front door rear ring frame for connecting with the side wall frame assembly, and a front wall top longitudinal beam for connecting the front face sub-assembly with the front door rear ring frame, the front face sub-assembly comprises a left front wall upright post, a right front windshield upright post, a left front windshield lower upright post, a front wall top cross beam, a front windshield upper cross beam, a front roof fixing bracket, a front windshield lower cross beam, a front wall middle cross beam and a front wall lower cross beam which are sequentially arranged from top to bottom, the front wall top cross beam, the front windshield upper cross beam, the front roof fixing bracket and the front windshield lower cross beam are respectively welded with the front wall upright posts at two sides, the upper ends of the left front windshield lower upright posts are connected with the front windshield lower cross beam, the lower ends of the left front windshield lower upright posts are connected with two ends of the front wall lower cross beam, the front wall middle cross beam is welded with the left front windshield lower upright posts and right front, enclose the stand before controlling with it links to each other with preceding limit crossbeam to enclose before controlling between the preceding wind window lower standing post through preceding, preceding limit crossbeam is located preceding face sub-assembly bottom, preceding enclose side crossbeam and be located preceding wind window lower beam below.
8. The novel passenger car body structure according to claim 7, wherein a front door reinforcing ring frame is arranged between the force bearing ring at the foremost end of the side wall frame assembly and the front door rear ring frame of the front wall assembly, and the shape of the front door reinforcing ring frame is the same as that of the front door rear ring frame.
9. The novel passenger car body structure according to claim 1, wherein the rear wall assembly comprises a rear wall frame connected with the rear end of the side wall frame assembly, a guideboard upper beam, a guideboard lower beam, a wind window lower beam, a door upper shelf beam and wind window side columns, wherein the two ends of the guideboard upper beam are connected with the rear wall frame, the middle part of the guideboard upper beam is parallel to the upper part of the rear wall frame, the guideboard lower beam is positioned below the guideboard upper beam, the wind window lower beam is positioned below the guideboard lower beam, the door upper shelf beam is positioned below the wind window lower beam, the wind window side columns are positioned on two sides of the door upper shelf beam, the lower ends of the wind window side columns are connected with the door upper shelf beam, a connecting shelf beam is arranged between the wind window side columns and the rear wall frame, rear cabin door columns are arranged on two sides of the door columns, and the rear wall frame are connected with the lower shelf beam.
10. The novel passenger car body structure as claimed in claim 1, wherein the floor assembly comprises a front floor frame, a middle floor frame, a rear floor frame and a floor through beam, and both ends of the floor through beam are connected with the side wall frame assembly.
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| CN202010171406.1A CN111645757A (en) | 2020-03-12 | 2020-03-12 | Novel passenger car body structure |
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Cited By (1)
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| CN112937692A (en) * | 2021-03-31 | 2021-06-11 | 东风汽车集团股份有限公司 | Double-ring type reinforcing structure of rear air window |
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