CN105691459B - A kind of stringer and semitrailer of semitrailer - Google Patents

Abstract

The present invention provides a kind of stringer of semitrailer and semitrailer, the stringer includes at least two components of upper flange and lower wing plate, and the stringer is fixed-type by each component assembling by fastener.A kind of stringer of semitrailer provided by the invention, it is by fastener that each component assembling is fixed-type by the way that the stringer is arranged, reduce a large amount of welding workload and avoids mass defect caused by welding, welding bring mass defect and problem with high labor costs are thoroughly avoided by using fastener to be connected and fixed between component, improve the product quality of semi-trailer longitudinal beam, reduce the post-processing for mass defect, reduces cost of labor.

Description

A kind of stringer and semitrailer of semitrailer

Technical field

The invention belongs to semitrailer technical fields, and in particular to a kind of stringer of semitrailer and with the stringer half Trailer.

Background technique

Semi-trailer longitudinal beam mostly uses the steel structure of Q345 or Q235 at present, and shape is " I " fonts, by upper flange, web And three pieces of flat board members of lower wing plate are welded to form.More problems caused by this kind of welding procedure: such as welding capacity leads to greatly crossbeam The defects of welding deformation is serious, size Control is bad；Inspection in welding process and after welding is time-consuming and laborious；Expenditure of time It is more that manufacturing cost and cost of labor is caused to increase accordingly；Later period maintenance cost is also relatively high.Meanwhile stringer is mostly steel knot Structure not only considerably increases car body self weight, but also reduces the carrying capacity of semitrailer.In addition, steel and welding bead surface are easy Corrosion, the whole service life for greatly reducing semitrailer are shorter.

In order to reduce the self weight of semitrailer, also occur the aluminum stringer of " I " fonts at present, squeeze out profile for monoblock type, I.e. stringer end face is prismatic.This kind of stringer is during actual load often due to the poor appearance of aluminum alloy material rigidity is bright Show recessed, while the limitation for the machine tonnage that is squeezed, " sectional dimension " of extrudate is also restricted, the especially height of stringer Spend size.For this stringer semitrailer product higher for intensity requirement, it is clear that occur having many limitations.

Summary of the invention

The present invention provides a kind of stringer of semitrailer, is fixed by the assembly connection between component, avoids a large amount of weldering It connects, improves the manufacturing quality of stringer, reduce cost of labor.

To reach above-mentioned technical purpose, the present invention is implemented with the following technical solutions:

A kind of stringer of semitrailer, the stringer include at least two components of upper flange and lower wing plate, and the stringer passes through Fastener is fixed-type by each component assembling.

Further, the upper flange is profile, and the upper flange has upper flange ontology and downward along upper flange ontology The upper flange mounting portion of extension.

Further, the lower wing plate is profile, and the lower wing plate has lower wing plate ontology and upward along lower wing plate ontology The lower wing plate mounting portion of extension.

Further, one of them of the upper flange mounting portion and lower wing plate mounting portion are vertical plate, the upper flange The end of the another one of mounting portion and lower wing plate mounting portion is equipped with the wing plate recess to match with vertical plate, the vertical plate In the recess.

Further, the median plane of the upper flange mounting portion and lower wing plate mounting portion is overlapped.

Further, the stringer further includes the web between the upper flange and lower wing plate, the web it is upper Lower both ends are fixedly connected with lower wing plate by fastener respectively at the upper flange.

Further, the upper flange mounting portion is equipped with the upper flange recess to match with the upper end of the web, The lower wing plate mounting portion is equipped with the lower wing plate recess to match with the lower end of the web.

Further, the upper flange ontology has the first noumenon being located on the inside of the upper flange mounting portion and is located at institute The second ontology on the outside of upper flange mounting portion is stated, the width of the first noumenon is less than the width of second ontology.

Further, the lower surface of second ontology successively includes the first inclined-plane and upper flange ontology from outside to inside The first parallel plane of upper surface and the second inclined-plane.

Further, the angle between first inclined-plane and horizontal plane is more than or equal to second inclined-plane and level Angle between face.

Further, the lower surface of the first plane on second ontology and the first noumenon is generally aligned in the same plane It is interior.

Based on the stringer of above-mentioned semitrailer, the present invention also provides a kind of semitrailers, have longitudinal be arranged in parallel on two The stringer for the semitrailer stated.

The semitrailer further includes a front beam, a rear cross beam and floor, and the front beam is vertically set on two stringers Front end, the rear cross beam is vertically set on the rear end of two stringers, and the front beam and rear cross beam are respectively engaged with the floor Rear and front end, fixed between the floor and two stringers for assembly connection, the front beam and rear cross beam respectively with two stringers Between fixed for assembly connection.

Further, the floor is at least had by more being laterally laid on two stringers and playing the role of cross-brace There is the profile of a chamber to be formed by connecting.

Further, the vehicle frame further includes two side bars, and two side bars are separately positioned at left and right sides of the floor, describedly The upper surface formation loading platform of plate, front beam, rear cross beam and two side bars.

Further, the assembly connection is fixed as being fixedly connected by fastener.

Further, side bar connector, the side are provided between the side bar and the floor, front beam and rear cross beam It is fixed between beam and side bar connector for assembly connection.

Further, the floor includes laterally being laid on more first floor profiles on two stringers, and adjacent two It is mutually clamped between first floor profile described in root.

Further, first floor profile has at least one chamber.

Further, a side lower part of first floor profile is with outward extension for assembling with the stringer Extend mounting plate outside first, another side lower part of first floor profile is equipped with the first installation groove and along the first installation groove The inside bending in edge extend first in extend mounting plate；Extend mounting plate in described first and is superimposed upon the connect adjacent thereto Extend the top of mounting plate outside one, fastener extends in first to be extended mounting plate and indulge with described outside mounting plate and first Beam is fixed.

Further, the described first end for extending mounting plate outside also has upward flange, and the flange is located at described Extend the outside of mounting plate in first.

Further, the top of the side of first floor profile is equipped with the first inner card cage being recessed inwardly, the other side Top be equipped with outwardly protrude and the first exterior bayonet slot for matching with first inner card cage；First inner card cage with Its first adjacent exterior bayonet slot fastens.

Further, first floor profile is equipped with parallel along two of the first floor profile length direction Sliding slot is provided with the partition of T shape between two sliding slots.

Further, the floor further includes transversely movable positioning sliding block, the lower end of the positioning sliding block be equipped with Two claws that two sliding slots match, the claw are positioned in the chute.

Further, the top of first floor profile is additionally provided with anti-skidding boss protruding upward.

Further, first floor profile include the first upper plate disposed in parallel and the first lower plate, it is vertically disposed First front side board, the first back side panel and middle connecting plate and the installation groove plate and coulisse parallel with first upper plate, it is described Two oblique connecting plates are respectively equipped between sliding slot board ends and middle connecting plate.

Further, arc panel is equipped between the coulisse and the first upper plate.

Further, the middle connecting plate is equal with the distance between first front side board and the first back side panel.

Further, the width of the coulisse is equal with the width of the oblique connecting plate.

Further, the floor includes alternately arranged first floor profile and the second floor profile, adjacent institute It states and is mutually clamped between the first floor profile and the second floor profile, the width of second floor profile is greater than first ground The width of profile material.

Further, first floor profile and the second floor profile are laterally laid on the upper surface of two stringer On.

Further, the side of first floor profile for being assembled with two stringer with outward extension Extend mounting plate outside one, another side lower part of first floor profile is equipped with the first installation groove and along the first installation groove The first interior extension mounting plate that the inside bending in edge extends；The side lower part use with outward extension of second floor profile In extending mounting plate outside second assembled with two stringer, another side lower part of second floor profile is equipped with the second installation Groove and extend mounting plate along second that the inside bending in the edge of the second installation groove extends；The of first floor profile Extend mounting plate in one to be located at outside the second of second floor profile adjacent thereto connect on extension mounting plate, fastener passes through Extend in described first and extend mounting plate outside mounting plate and second and fixed with the stringer, second floor profile second in Extend mounting plate to be located at outside the first of first floor profile adjacent thereto connect on extension mounting plate, fastener passes through described Extend extension mounting plate outside mounting plate and first in second to fix with the stringer.

Further, second floor profile include the second upper plate disposed in parallel and the second lower plate, it is vertically disposed Second front side board and the second back side panel, interval are located at least one connection between second front side board and the second back side panel Plate and the second installation groove plate between the second front side board and connecting plate and parallel with second upper plate is set.

Further, the connecting plate is enclosed second upper plate, the second lower plate, the second front side board and the second back side panel At region be separated at least two square areas.

Further, the top of the side of first floor profile is equipped with the first inner card cage being recessed inwardly, the other side Top be equipped with the first exterior bayonet slot for outwardly protruding；The top of the side of second floor profile is equipped with second to be recessed inwardly Inner card cage, the top of the other side are equipped with the second exterior bayonet slot outwardly protruded；First inner card cage of first floor profile with Second exterior bayonet slot of its adjacent second floor profile fastens, the first exterior bayonet slot of first floor profile with Second inner card cage of its adjacent second floor profile fastens.

Further, the front beam includes front beam ontology, is located on front beam ontology and is mutually clamped with the floor Front bayonet slot and along the outwardly extending front beam mounting portion of the front beam ontology, the front beam mounting portion passes through fastener It is fixed on the upper surface of two stringer.

Further, the rear cross beam includes rear cross beam ontology, is located on rear cross beam ontology and is mutually clamped with the floor The lower part of card slot, rear cross beam ontology is equipped with rear installation groove and after the inside bending extension in the edge of rear installation groove afterwards Extend mounting plate.

Further, the lower end of the rear cross beam sets that there are two the rear bumper mounting plates that extend downwardly.

Further, the side bar connector include the first side bar fixed part being connected and fixed with the side on the floor, The the first side bar interconnecting piece and connected along first side bar that outside bending extends along the end of the first side bar fixed part The second side bar interconnecting piece that the end downward bending in portion extends；The first side bar interconnecting piece and the second side bar interconnecting piece respectively at The side bar is fixed.

Further, the side bar connector further includes being arranged on the second side bar interconnecting piece top and extending internally The second side bar fixed part, the second side bar fixed part and the lower surface on the floor are connected and fixed.

Further, there is the fixing lug boss being connected and fixed with the side on the floor on the second side bar fixed part.

Further, the side bar be extrudate, the side bar include side bar ontology and with the side bar ontology one It is body formed or be provided on the side bar ontology auxiliary mounting portion having for installation auxiliary device.

Further, the auxiliary mounting portion includes for installing at least one of euphroe, rope hook, plank and pitching pile Mounting portion.

Further, the side bar ontology has integrally formed at least two chambers arranged side by side, the chamber in outside By vertical plate and level board around forming, the auxiliary mounting portion includes being spaced apart to be equipped with multiple pitching pile holes on the chamber in outside The pitching pile mounting portion of formation.

Further, the chamber of inside is electrically to pass by line chamber.

Further, the side bar further includes integrally formed along inside horizontal-extending first side bar of the side bar ontology Mounting portion and the second side bar mounting portion extended vertically downwards along the inside of the side bar ontology.

Further, the auxiliary mounting portion includes being integrally formed the slot that boarding is used on the side bar ontology Mouthful, the top surface of the notch and the side bar ontology forms step-like.

Further, the inside horizontal extension of the side bar ontology forms the first side bar mounting portion, the first side bar installation The top surface in portion, notch and the side bar ontology forms two-stage step shape from inside to outside.

Further, it is described auxiliary mounting portion include be integrally formed the side bar ontology lower end, arranged side by side two A euphroe card slot for being used to clamp euphroe.

Further, there is the blend stop extended respectively to other side between two euphroe card slots.

Further, the auxiliary mounting portion includes multiple rope hooks installation that interval is provided with side bar ontology lower end Hole.

Further, the semitrailer further includes rear bumper, and the rear bumper includes: vertical disposed in parallel two vertical Column and the crosspiece for being horizontally installed on the column lower end, the rear bumper further include be arranged in the left and right sides both sides it is vertical Column, two edge columns are connected respectively at the left and right ends of the crosspiece.

Further, side seal board is equipped between the column of the corresponding side of the edge column.

Further, the side seal board is equipped with several lateral reinforcing ribs, and the reinforcing rib forms semi-mounted tail-light Mounting bracket.

Further, the lateral surface of the edge column is arc transiting surface.

Further, the crosspiece section is hollow rectangular configuration.

Further, the top of the crosspiece is equipped with the anti-skidding tongue to raise upward.

Further, the cross section of the column is I-shaped structure.

A kind of stringer of semitrailer provided by the invention is consolidated each component assembling by fastener by the way that the stringer is arranged Fixed molding reduces a large amount of welding workload and avoids mass defect caused by welding, tight by using between component Firmware, which is connected and fixed, thoroughly avoids welding bring mass defect and problem with high labor costs, improves semi-trailer longitudinal beam Product quality, reduce the post-processing for mass defect, reduce cost of labor.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of one embodiment of the stringer of semitrailer.

Fig. 2 is the partial structure diagram of lateral section view in Fig. 1.

Fig. 3 is the structural schematic diagram of right-hand stringer in Fig. 2.

Fig. 4 be in Fig. 3 D-D to sectional structure enlarged structure schematic diagram.

Fig. 5 is the enlarged structure schematic diagram of upper flange in Fig. 3.

Fig. 6 is the enlarged structure schematic diagram in the region L in Fig. 5.

Fig. 7 is the enlarged structure schematic diagram of lower wing plate in Fig. 4.

Fig. 8 is a kind of structural schematic diagram of second embodiment of the stringer of semitrailer.

Fig. 9 is the overlooking structure diagram of Fig. 1.

Figure 10 is that longitudinal schematic cross-sectional view after running gear is removed in Fig. 1.

Figure 11 is the structural schematic diagram of the first embodiment on floor.

Figure 12 is the enlarged structure schematic diagram of a-quadrant in Figure 11；

Figure 13 is the enlarged structure schematic diagram of the first floor profile in Figure 12.

Figure 14 is the cooperation enlarged structure schematic diagram of the first floor profile and positioning sliding block in Figure 12.

Figure 15 is the structural schematic diagram of second of embodiment on floor.

Figure 16 is the enlarged structure schematic diagram of B area in Figure 16；

Figure 17 is the enlarged structure schematic diagram of the second floor profile in Figure 16.

Figure 18 is the enlarged structure schematic diagram in Figure 10 at front beam.

Figure 19 is the enlarged structure schematic diagram of front beam in Figure 18.

Figure 20 is the enlarged structure schematic diagram at Figure 10 middle and rear cross beam.

Figure 21 is the enlarged structure schematic diagram of Figure 20 middle and rear cross beam.

Figure 22 is the enlarged structure schematic diagram in Fig. 2 at the side bar on right side.

Figure 23 is the enlarged structure schematic diagram of side bar connector in Figure 22.

Figure 24 is the enlarged structure schematic diagram of side bar in Figure 22.

Figure 25 is the enlarged structure schematic diagram in the region C in Figure 24.

Figure 26 is one section of schematic perspective view of side bar in Figure 22.

Figure 27 is the enlarged structure schematic diagram in Fig. 2 at the side bar in left side.

Figure 28 is the main view enlarged structure schematic diagram of rear bumper in Figure 20.

Figure 29 be Figure 28 in E-E to schematic cross-sectional view.

Figure 30 is the enlarged structure schematic diagram in the region H in Figure 14.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.

The present invention is when describing orientation, using the direction of semitrailer normally travel as front, is with another party that front is opposite Rear, be with the center position close to semitrailer cross section it is interior, the direction with the center of separate semitrailer cross section is outer.

It is a kind of structural schematic diagram of the first embodiment of the stringer of semitrailer, as shown in Figure 1, semi-mounted referring to Fig. 1-Fig. 7 Vehicle includes the compositions such as vehicle frame 100, traction assembly 200, supporting leg assembly 300, rear bumper 400 and running gear 500.Fig. 3 is The structural schematic diagram of the stringer on right side in Fig. 2.

As shown in Figure 3 and Figure 4, stringer 1 includes upper flange 11, lower wing plate 12, between upper flange 11 and lower wing plate 12 Totally three components of web 13, it is by fastener 7 that three component assemblings are fixed-type.Pass through between the component of stringer 1 in this way The assembly of fastener 7 is fixed, avoid stringer 1 form when welding, avoid because weld caused by deformation, strength reduction, Mass defect etc. is conducive to the quality for improving stringer 1, and improves the manufacturing speed of stringer 1, reduces manufacturing cost.

In the present embodiment, upper flange 11 and lower wing plate 12 are integrated the aluminum profile of extrusion forming, and stringer 1 is variable cross-section knot Structure, web 13 are aluminum alloy extrusion section bar, and stringer 1 advantageously reduces the self weight and appearance beauty of stringer 1 using aluminium alloy structure It sees, the cost of labor and maintenance cost of manufacture are lower.Due to using the assembly between component, web 13 can be set to Encircle lower male structure, so that being also the lower male structure that arches up after 1 molding assembly of stringer, increases the bearing capacity of stringer 1, increase stringer Compressive property.Wherein, fastener 7 is that aluminium rivet and aluminium HUCK are followed closely.

As shown in Figure 4-Figure 7, upper flange 11 has upper flange ontology 111 and extends downwardly along upper flange ontology 111 upper Wing plate mounting portion 112.The lower wing plate installation that lower wing plate 12 has lower wing plate ontology 121 and upwardly extends along lower wing plate ontology 121 Portion 122.It is equipped with the upper flange recess 113 to match with the upper end of web 13 on upper flange mounting portion 112, pacifies in lower wing plate Dress portion 122 is equipped with the lower wing plate recess 123 to match with the lower end of web 13.When stringer 1 assembles, the lower end of web 13 At lower wing plate recess 123, and it is using fastener 7 that web 13 and lower wing plate mounting portion 122 is fixed；The upper end position of web 13 At upper flange recess 113, and it is using fastener 7 that web 13 and upper flange mounting portion 112 is fixed；Make stringer 1 solid in this way Fixed molding is simple, and upper flange recess 113 is arranged and lower wing plate recess 123 makes the installation positioning of web 13 simple, is conducive to mention The assembling speed of high stringer 1；And be conducive to fixation between web 13, so that the stress performance after stringer 1 assembles is preferable.

In the present embodiment, as shown in figure 5, web 13 is biased to the inside of upper flange ontology 111, that is, upper flange ontology 111 have the first noumenon 1111 for being located at 112 inside of upper flange mounting portion and second on the outside of upper flange mounting portion 112 Body 1112, and the width of the first noumenon 111 is less than the width of the second ontology 1112.Namely by by the second ontology 1112 Width is arranged wider, so that the outside of upper flange ontology 111 increases at a distance from the contact of floor 4, increases stringer 1 for ground The support arm of force of plate 4 is conducive to improve stringer 1 for the support degree on floor 4, improves the stress performance on floor 4.

In the present embodiment, as shown in fig. 6, the upper surface of upper flange ontology 111 is plane, there is certain gradient in lower surface, Be conducive to finite reduction self weight under the premise of meeting intensity in this way and reduce the cost of raw material.Specifically, the second ontology There is certain gradient in 1112 lower surface；The lower surface of the first noumenon 1111 is parallel with upper surface, under the first noumenon 1111 A upper limb board slot 114 is offered on surface, convenient for the fixation of fastener 7.The lower surface of second ontology 1112 from outside to inside according to Secondary includes the first inclined-plane 11121, first plane 11122 parallel with the upper surface of upper flange ontology 111 and the second inclined-plane 11123.A upper flange stress slot 114 is offered in the first plane 11122.And the first inclined-plane 11121 and level are set Angle between face is more than or equal to the angle between the second inclined-plane 11123 and horizontal plane；First inclined-plane 11121 and horizontal plane Between angle be 3-8 degree, that is, the angle between horizontal plane is smaller, and first be arranged on the second ontology 1112 is flat Face 11122 and the lower surface of the first noumenon 1111 are in the same plane, and fastener 7 is fixed in the first plane 11122, setting Second inclined-plane 11123 makes the distance between the second inclined-plane 11123 and the upper surface of upper flange ontology 111 be greater than the first noumenon 1111 thickness, the in this way thickness of 1112 inside of the second ontology of increase, are conducive to the intensity for increasing by the second ontology 1112, it is ensured that increase After the support arm of force for having grown the second ontology 1112, the increase of the intensity of the second ontology 1112 itself ensure that having for floor 4 Power support.

Shown in Figure 8, the structural schematic diagram of the second embodiment of the stringer of semitrailer, stringer 1 is by upper flange 11 under 12 two components of wing plate, it is by fastener 7 that two component assemblings are fixed-type.Pass through fastening between the component of stringer 1 in this way The assembly of part 7 is fixed, and welding when stringer 1 forms is avoided, and is avoided because of deformation, strength reduction, quality caused by welding Defect etc. is conducive to the quality for improving stringer 1, and improves the manufacturing speed of stringer 1, reduces manufacturing cost.

Upper flange 11 and lower wing plate 12 are integrated the aluminum profile of extrusion forming, and upper flange 11 has upper flange ontology 111 With the upper flange mounting portion 112 extended downwardly along upper flange ontology 111.Lower wing plate 12 has lower wing plate ontology 121 and along bottom wing The lower wing plate mounting portion 122 that plate ontology 121 upwardly extends.Wherein lower wing plate mounting portion 122 is vertical plate, in upper flange mounting portion 112 be equipped with the recess on lower wing plate mounting portion 122, the top of lower wing plate mounting portion 122 is located in recess, and passes through fastening Part 7 is fixed.Make stringer 1 fixed-type simple in this way, when setting recess installs upper flange 11 and lower wing plate 12, installation is fixed Position is simple, is conducive to the assembling speed for improving stringer 1, and is conducive to increase the stress performance after stringer 1 assembles.Upper limb is set The median plane of plate mounting portion 112 and lower wing plate mounting portion 122 is overlapped, so that lower wing plate mounting portion 122 is to upper flange mounting portion 112 Strong support is formed, the stress performance of stringer 1 is increased.

Below in explanatory diagram 1 semitrailer other structures, as shown in figure 9, vehicle frame 100 includes longitudinal two disposed in parallel The rear cross beam 3 of front beam 2, one of stringer 1, one and floor 4, wherein front beam 2 is vertically set on the front end of two stringers 1, Rear cross beam 3 is vertically set on the rear end of two stringers 1, and front beam 2 and rear cross beam 3 are respectively engaged with the front and back two on floor 4 End, is fixed between floor 4 and two stringers 1 for assembly connection, and front beam 2 and rear cross beam 3 are respectively dress between two stringers With being connected and fixed.

In the present embodiment, by being connected and fixed between component using assembled, thoroughly avoids welding bring quality and lack Sunken and problem with high labor costs, specifically, as shown in figures 12 and 14, front beam 2 and rear cross beam 3 are respectively engaged with floor 4 rear and front end is fixed between floor 4 and two stringers 1 for assembly connection, front beam 2 and rear cross beam 3 respectively with two stringers Between fixed for assembly connection；Reduce a large amount of welding workload in this way and avoid mass defect caused by welding, mentions The high product quality of semi-trailer frame, reduces the post-processing for mass defect, reduces cost of labor.

In the present embodiment, vehicle frame 100 is mainly assembled using aluminium alloy extrusions, and wherein stringer 1 and floor 4 are closed by aluminium Metal type material is assembled, the aluminium alloy extrusions that front beam 2 and rear cross beam 3 are integrally formed.Assembly connection is fixed as using fastening Part is connected and fixed or connects and fixes, and fastener can be using bolt, rivet, HUCK nail etc..Also make half using aluminium alloy extrusions The self weight of Trailer type frame for use in vehicle is lighter, appearance looks elegant, and the cost of labor and maintenance cost of manufacture are lower.

As shown in Fig. 2, Fig. 9 and Figure 22, vehicle frame 100 further includes two side bars 5, and two side bars 5 are separately positioned on floor 4 The left and right sides, two side bars 5, front beam 2 and rear cross beam 3 form the outline border of vehicle frame；Side bar 5 is also using the aluminium of integrated extrusion forming Alloy profile is provided with side bar connector 6, specifically positioned at the assembly connection for being convenient for side bar 5 between floor 4 and side bar 5 It is to be respectively welded coupling beam connector 6 in the left and right sides on floor 4, front beam 2 and rear cross beam 3, side bar 5 is fixed by fastener On coupling beam connector 6.The assembly for being conducive to side bar 5 by the way that side bar connector 6 is arranged is fixed.The upper surface on floor 4, front beam The upper surface of 2 upper surface, the upper surface of rear cross beam 3 and two side bars 5 forms the loading platform of semi-trailer frame, in other words Form the upper surface of semi-trailer frame.

In the present embodiment, vehicle frame 100 omits run through crossbeam in other words, the work of cross-brace is played on floor 4 without crossbeam is run through With floor 4 is made of the more at least aluminium alloy extrusions with a chamber being laterally laid on two stringers 1.It rises on floor 4 Cross-brace effect is arrived, that is, floor 4 also acts cross-brace other than playing the role of floor, that is, It plays through horizontal beam action, also allowing for semi-trailer frame can be omitted through crossbeam, be avoided on stringer 1 in this way Through hole and the welding for running through crossbeam are opened up, the reduction for opening up through hole for the intensity of stringer 1 is avoided, and Welding runs through the malformation of stringer 1 caused by crossbeam, is conducive to the raising of product quality and the reduction of cost of labor.It is logical Crossing setting floor profile at least has a chamber, so that the structure of profile has biggish composite bending modulus, increases holding for floor Loading capability and compression strength.

The structure on floor 4 is specifically described below, wherein the "inner" "outside" for indicating orientation is relative to floor profile section sheet What body was said, be the first embodiment on floor 4, floor 4 is clamped by a kind of floor profile as shown in figures 11-14.

As shown in figure 11, floor 4 includes laterally being laid on more on two stringers 1 at least to have rectangular chamber the One floor profile 41, the first floor profile 41 are integrated the aluminium alloy extrusions of extrusion forming.Two adjacent first floor types It is mutually clamped between material 41.By being mutually clamped so that floor 4 forms an entirety, the first floor profile 41 is before and after upper end Two sides are provided with clamping structure, the front and rear sides of lower end are provided with extension mounting plates structure for fixing；Be conducive in this way Increase the intensity on floor 4, and contributes to form smooth floor upper surface.There is rectangle by the first floor profile 41 of setting Chamber so that the first floor profile 41 has biggish composite bending modulus, and the contact area between stringer 1 is larger, into One step increases compressive property.

For clamping structure, as shown in Figure 12 and Figure 13, it is equipped with and concaves on the top of the side of the first floor profile 41 The top of the first sunken inner card cage 414, the other side is equipped with outside outwardly protruding and matching with the first inner card cage 414 first Card slot 415；When the first floor profile 41 installs fixed, the first inner card cage 414 and the first exterior bayonet slot 415 phase adjacent thereto connect Engaging.It connects and fixes the top of the first floor profile 41 mutually, increases the fixed fastness of assembly and planarization, with And snap-action is simple, the time of less fixed operation.

As shown in Figure 12 and Figure 13, a side lower part of the first floor profile 41 it is with outward extension be used for and stringer 1 Extend mounting plate 411 outside the first of assembly, is equipped with the first installation groove 412 and edge in another side lower part of the first floor profile 41 The first interior extension mounting plate 413 that the inside bending in the edge of first installation groove 412 extends；It is solid in the installation of the first floor profile 41 Periodically, the first interior mounting plate 413 that extends is superimposed upon the top for extending mounting plate 411 outside first connect adjacent thereto, and fastener 7 is worn It crosses in first to extend and extends mounting plate 411 outside mounting plate 413 and first and fixed with stringer 1, the first installation groove 412 is used for Place fixation fastener 7.Pass through the first interior extension mounting plate 413 and first of two adjacent first floor profiles 41 in this way Outer being stacked for mounting plate 411 of extension is fixed, when so that the first floor profile 41 is fixed by fastener 7, by adjacent two The first floor profile of root 41 is also secured on stringer 1, and it is vertical that the front and rear sides of the first floor profile 41 are all fixed on On beam 1, increase the fastness and stability between the first adjacent floor profile 41, the whole fastness in enhancing floor 4.

As shown in figure 13, in order to further increase the assembly fixed speed of the first floor profile 41, extend peace outside first The end of loading board 411 also has upward flange 4111, and flange 4111 is located at the outside for extending mounting plate 413 in first.Also In 41 assembled of the first floor profile, top is clamped by the first inner card cage 414 and the first exterior bayonet slot 415, lower part pass through by Extend mounting plate 413 in first and be put into outside first and extend on mounting plate 411, and be located at 4111 inside of flange, is conducive to the in this way The installation positioning for extending mounting plate 413 in one, improves assembling speed.

As shown in Figure 11, Figure 13 and Figure 14, for the ease of the fixation of the cargo on floor 4, floor 4 further includes laterally moving Dynamic positioning sliding block 43, positioning sliding block 43 are mounted on the first floor profile 41；It is equipped on the first floor profile 41 along first The parallel sliding slot 414 of two of 41 length direction of floor profile is provided with the partition of T shape between two sliding slots 414；Positioning sliding block 43 lower end is equipped with two claws to match with two sliding slots 414, and claw is located in sliding slot 414.It can according to need Positioning sliding block 43 is set on one floor profile 41, so that the cargo on floor 4 is positioned in front-rear direction.

As shown in figure 13, it is additionally provided with anti-skidding boss 416 protruding upward on the top of the first floor profile 41, increases floor Friction between 4 and the cargo placed thereon, increases the stability of cargo.

In present embodiment, as shown in figure 14, the first floor profile 41 includes the first upper plate 4171 disposed in parallel and the One lower plate 4172, vertically disposed first front side board 4173, the first back side panel 4174 and middle connecting plate 4175 and with the first upper plate 4171 parallel installation groove plates 4176 and coulisse 4177, wherein set between 4177 both ends of coulisse and middle connecting plate 4175 respectively There are two tiltedly win 4178 in succession.Namely the first floor profile 41 has three chambers surrounded, coulisse 4177 and the first upper plate Arc panel 4179 is equipped between 4171, sliding slot 414 is exactly to have coulisse 4177,4,179 first upper plate 4171 of arc panel and T shape Partition is around forming, and in order to increase the support for sliding slot 414, setting is respectively set at 4177 both ends of coulisse tiltedly wins in succession 4178, the width of coulisse 4177 is equal with the width of oblique connecting plate 4178, that is, forms the chamber increase pair of equiangular triangle In the support of sliding slot 414.Middle connecting plate 4175 is equal with the distance between the first front side board 4172 and the first back side panel 4174.In this way So that the first floor profile 41 has biggish intensity, so that the integral strength on floor 4 is larger.

It is second of embodiment on floor 4 as shown in Figure 15-Figure 17, floor 4 is alternately clamped by two kinds of floor profiles It forms.

Specifically, as shown in figure 9, floor 4 includes alternately arranged first floor profile 41 and the second floor profile 42, the One floor profile 41 and the second floor profile 42 are laterally laid on the upper surface of two stringers 1.The first adjacent floor profile 41 and second are mutually clamped between floor profile 42, are clamped on top so that 42 shape of the first floor profile 41 and the second floor profile At an entirety, be conducive to the intensity for increasing floor 4, and contribute to form smooth floor upper surface.Wherein the first floor Profile 41 uses structure identical with the first embodiment, is not provided with positioning sliding block 43 on the second floor profile 42, makes in this way The structure for obtaining the second floor profile 42 is simple, can reduce the cost on floor.And the width of the second floor profile 42 is greater than the The width of one floor profile 41 reduces the usage amount of the first floor profile 41 in this way, is conducive to further reduce the cost.

In the present embodiment mode and the first floor profile 41 and the second floor profile 42 on top pass through clamping structure card It connects, lower part is fixed by mounting plate.

As shown in Figure 16 and Figure 17, the first floor profile 41 and the second floor profile 42 are provided with solid for installing in lower part Fixed mounting plate extends outside first for assembling with two stringers 1 with outward extension of the side of the first floor profile 41 Mounting plate 411 is equipped with the first installation groove 412 in another side lower part of the first floor profile 41 and along the first installation groove 412 The inside bending in edge extend first in extend mounting plate 413；It is equipped in a side lower part of the second floor profile 42 to extension Extend mounting plate 421 outside second for assembling with two stringers 1 stretched, is equipped in another side lower part of the second floor profile 42 Second installation groove 422 and the extension mounting plate 423 along second that the inside bending in the edge of the second installation groove 422 extends；? When first floor profile 41 and the second floor profile 42 are alternately installed, the first floor profile 41 and the second adjacent floor profile The clamping of 42 tops, the interior mounting plate 413 that extends of the first of the first floor profile of lower part 41 are located at the second floor type adjacent thereto connect Extend on mounting plate 421 outside the second of material 42, that is, the first interior extension mounting plate 413 is superimposed upon outside second and extends mounting plate 421；Fastener 7 passes through extension mounting plate 421 and stringer 1 outside the first interior extension mounting plate 413 and second and fixes；Second floor type Extend mounting plate 423 in the second of material 42 and is located at extension mounting plate 411 outside the first of the first floor profile 41 adjacent thereto connect On, fastener 7 passes through extension mounting plate 411 and stringer 1 outside the second interior extension mounting plate 423 and first and fixes.Pass through phase in this way The mounting plate of adjacent the first floor profile 41 and the second floor profile 42, which is stacked, to be fixed, so that the first floor profile 41 and Lower part between two floor profiles 42 fix and the first floor profile 41 and the second floor profile 42 and stringer 1 between consolidate Surely it is completed at the same time, and the first floor profile 41 and the front and rear sides of the second floor profile 42 is all fixed on stringer 1, increase Add the fastness and stability between the first floor profile 41 and the second floor profile 42, the whole fastness in enhancing floor 4.

Referring to shown in Figure 13 and Figure 17, the top of the side of the first floor profile 41 is equipped with the first inner card cage being recessed inwardly 414, the top of the other side is equipped with the first exterior bayonet slot 415 outwardly protruded；The top of the side of second floor profile 42 be equipped with to Second inner card cage 424 of sunken inside, the top of the other side are equipped with the second exterior bayonet slot 425 outwardly protruded；In the first floor profile 41 and second floor profile 42 when alternately installing, the first inner card cage 414 and second connect adjacent thereto of the first floor profile 41 Second exterior bayonet slot 425 of floor profile 42 fastens, the first exterior bayonet slot 415 of the first floor profile 41 and the connect adjacent thereto Second inner card cage 424 of two floor profiles 42 fastens.Make the upper of the first floor profile 41 and the second floor profile 42 in this way Portion mutually connects and fixes, and increases the fixed fastness of assembly and planarization and snap-action is simple, less fixed operation when Between.

In present embodiment, the second floor profile 42 include the second upper plate 4271 disposed in parallel and the second lower plate 4272, Vertically disposed second front side board 4273 and the second back side panel 4274 are uniformly spaced apart in the second front side board 4273 and the second back side panel Three connecting plates 4275 between 4274 and be arranged between the second front side board 4273 and connecting plate 4275 and with the second upper plate 4271 the second parallel installation groove plates 4276.Making the second floor profile 42 tool in this way, there are three square chambers and the second peace Fill the chamber of 422 top of groove.Make the second floor profile 42 that there is biggish composite bending modulus in this way, so that the entirety on floor 4 Intensity is larger.

As shown in Figure 18-Figure 21, the structure of front beam 2 and rear cross beam 3 in the present embodiment is illustrated, front beam 2 is with after Crossbeam 3 is integrated the aluminium alloy extrusions of extrusion forming, and front beam 2 includes front beam ontology 21, is located on front beam ontology 21 With the front bayonet slot 22 of 4 phase of floor clamping and along the outside horizontal-extending front beam mounting portion 23 of front beam ontology 21；Front beam Mounting portion 23 is superimposed with the interior extension mounting plate on floor 4, and is fixed on the upper surface of two stringers 1 by fastener 7.Also It is that the front beam ontology 21 of front beam 2 is located at the front end of stringer 1, front beam mounting portion 23 is located on stringer 1.

Rear cross beam 3 include rear cross beam ontology 31, be located on rear cross beam ontology 31 with 4 phase of floor clamping rear card slot 32, after The rear extension that the lower part of cross-beam body 31 is equipped with rear installation groove 33 and extends along the inside bending in the edge of rear installation groove 33 Mounting plate 34.Extend mounting plate 34 afterwards to be superimposed with the outer extension mounting plate on floor 4, and two stringers 1 are fixed on by fastener 7 Upper surface on.Rear cross beam ontology 31 is located at the rear end of stringer 1, and rear installation groove 33 and the rear mounting plate 34 that extends are located at stringer 1 On.Set that there are two the rear bumper mounting plates 35 that extend downwardly for the ease of the lower end for being assemblied in rear cross beam 3 of rear bumper.

As shown in Figure 22-Figure 27, the structure of side bar connector 6 and side bar 5 in the present embodiment, side bar 5 and side are illustrated Beam connection 6 is integrated the aluminium alloy extrusions of extrusion forming.

As shown in Figure 22 and Figure 23, side bar connector 6 includes the first side bar fixed part being connected and fixed with the side on floor 4 61, the first side bar interconnecting piece 62 and connected along the first side bar that outside bending extends along the end of the first side bar fixed part 61 The second side bar interconnecting piece 63 that the end downward bending in portion 62 extends；Wherein the first side bar interconnecting piece 61 and the second side bar interconnecting piece 63 are connected and fixed between side bar 5 by fastener 7 respectively, are equipped with and the first side bar interconnecting piece 61 and the second side on side bar 5 The side bar mounting portion that beam interconnecting piece 63 matches；It is fixed by setting side bar connector 6 convenient for the assembly of side bar 7.

In order to increase between side bar connector 6 and floor 4 fixed fastness, side bar connector 6 further includes setting the Two side bar interconnecting pieces, 63 top and the second side bar fixed part 64 to extend internally, the following table of the second side bar fixed part 64 and floor 4 Face is welded and fixed；First side bar fixed part 61 and the side on floor 4 are also to be welded and fixed.Have on the second side bar fixed part 64 The fixing lug boss 65 being connected and fixed with the side on floor 4 further increases between side bar connector 6 and floor 4 fixed secured Property.

As shown in Figure 22, Figure 24-Figure 27, side bar 5 includes side bar ontology 51 and is integrally formed or opens with side bar ontology 51 The auxiliary mounting portion having for installation auxiliary device is located on side bar ontology 51.Wherein auxiliary mounting portion includes for installing tight rope At least one mounting portion of device 10, rope hook 20, plank 30 and pitching pile etc..Euphroe 10 is used to tense the rope of restraint of loads, rope Hook 20 is used for the fixation of rope, the setting of plank 30 on semi-trailer frame, for fixing cargo when reinforce nail, pitching pile is for inserting Stake, becomes van or side curtain vehicle or breast board car etc. for flat car.This avoid the welderings between auxiliary mounting portion and side bar 5 It connects, deformation, strength reduction and the influence for vehicle appearance etc. of side bar 5 caused by avoiding because of welding auxiliary mounting portion, The quality for being conducive to improve side bar increases the intensity of side bar, and improves the packaging efficiency of vehicle, reduces production cost.

As shown in Figure 24 and Figure 26, side bar ontology 51 has integrally formed at least two chambers arranged side by side, this reality Applying tool in example, there are three chambers, respectively the third chamber of the first chamber 511 in outside, intermediate second chamber 512 and inside 513, wherein first chamber 511 is to be surrounded to form square type chamber by vertical plate and level board；Assisting mounting portion includes in outside The pitching pile mounting portion formed equipped with multiple pitching pile holes 5111 is spaced apart in first chamber 511.On the upper plate of first chamber 511 Even be spaced apart is equipped with multiple pitching pile holes 5111；In pitching pile, the lower part of pitching pile passes through pitching pile hole 5111 and enters first chamber 511, The cavity wall of first chamber 511 plays the role of fixed pitching pile.The second chamber 512 and 513 chamber of third chamber of inside are electrical Pass by line chamber.

As shown in figure 24, side bar 5 further include along side bar ontology 51 inwardly horizontal-extending first side bar mounting portion 52 and The the second side bar mounting portion 53 extended vertically downwards along the inside of side bar ontology 51, the first side bar mounting portion 52 and the second side bar peace Dress portion 53 is mutually matched corresponding and solid respectively with the first side bar interconnecting piece 61 on side bar connector 6 and the second side bar interconnecting piece 63 It is fixed.

As shown in figure 27, the first side bar mounting portion 52 and the second side bar mounting portion 53 are connect by fastener 7 with side bar Part 6 is fixed, is spaced apart on the first side bar mounting portion 52 and is equipped with several through-holes.Positioning when for forming through holes is convenient, the The side bar slot 521 along side bar length direction is offered on one side bar mounting portion 52, through-hole is opened up along side bar slot 521, improves fluting Working efficiency.

As shown in figure 24, auxiliary mounting portion further includes being integrally formed the notch that boarding 30 is used on side bar ontology 51 54, the top surface of notch 54 and side bar ontology 51 forms step-like.First side bar mounting portion 52, notch 54 and side bar ontology 51 Top surface form two-stage step shape from inside to outside.Plank 30 is installed in notch 54, the inside of plank 30 and side bar connector 6 Contact.It is integrally formed the notch 54 on side bar ontology 51 by setting, so that being simple to manufacture for notch 54, reduces and be produced into This.

Auxiliary mounting portion includes the tight rope that two be arranged side by side in the lower end of side bar ontology 51 are used to clamp euphroe 10 Device card slot 55, euphroe card slot 55 and side bar ontology 51 are integrally formed, and euphroe 10 is equipped with to match with euphroe card slot 55 Snap-gauge.Increase the limit for euphroe 10, there is the blend stop extended respectively to other side between two euphroe card slots 55 551, increase the limit for 10 upside of euphroe, guarantees the fastness after euphroe 10 is installed.It is integrally formed by setting Euphroe card slot 55 on side bar ontology 51 so that the installation of euphroe 10 is fixed simple, directly clamping can, and avoid pair In being welded and fixed for euphroe 10.

As shown in Figure 24 and Figure 27, auxiliary mounting portion includes multiple rope hooks installation that interval is provided with 51 lower end of side bar ontology Hole 56, in the present embodiment, rope hook mounting hole 56 is provided on the lower end wall of second chamber 512.By opening up rope hook mounting hole 56, Avoid being welded and fixed for rope hook 20.

As shown in Figure 24 and Figure 26, it is respectively provided with outwardly extending guard strip 514 in the outside upper and lower ends of side bar ontology 51, The thickness of guard strip 514 is greater than the cavity wall of side bar ontology 51, is conducive to the protection for side bar 5, Yi Jizeng by the way that guard strip 514 is arranged The intensity of edged beam 5.The outer panel of side bar 51 is equipped with the semicircular reinforcing rib 515 of outwardly convex, for increasing outer panel Intensity.

As shown in Figure 20, Figure 28-Figure 30, illustrate the structure of the rear bumper 400 positioned at 100 tail portion of vehicle frame, rear bumper 400 pass through 7 assembly connection of fastener on rear cross beam 3 and stringer 1.The lower end of rear cross beam 3 is equipped with the rear bumper extended downwardly The top of mounting plate 35, rear bumper 40 is fixed on rear bumper mounting plate 35 by fastener 7.Rear bumper 400 is also set There is the strengthening support 408 for installation, the front end of strengthening support 408 connects rear bumper 400 by fastener 7, and upper end passes through fastening The lower end of 7 longitudinal beam connected 1 of part.Fastener 7 is bolt.

As shown in figure 28, rear bumper 400 includes 401, crosspieces 402 of two root posts and two edge columns 403, Wherein, two root posts 401 are vertically arranged in parallel, and crosspiece 402 is horizontally installed on the lower end of column 401, and two edge columns 403 are arranged In the left and right sides of two root posts 401, and two edge columns 403 are respectively at the left and right ends of crosspiece 402；Namely edge column 403 are located at the left and right sides of bumper 400.

The edge column 403 of the left and right sides is set by increasing, strengthens the integral strength of rear bumper, in particular so that The intensity of 400 two sides of rear bumper is reinforced, and crashworthiness enhancing the problems such as deformation fracture occurs, further enhances when avoiding collision The safety of rear bumper 400 increases protection of the rear bumper 400 for semitrailer.

The integral strength of rear bumper 400 in order to further increase, the corresponding side of edge column 403 column 401 it Between be equipped with side seal board 404, that is, be provided with two pieces of side seal boards 404；License plate 405 is provided between two root posts 401, half The licence plate of trailer is fixed in license plate 405.Rear bumper 400 is made to form a closed knot by the way that side seal board 404 is arranged Structure, close-connected between each component, entirety that mutually supports, further enhances the intensity of rear bumper 400.

In the present embodiment, it is equipped with several lateral reinforcing ribs 4041 on side seal board 404, increases the intensity of side seal board 404, And bonding strength effectively between reinforcement column 401, crosspiece 402 and edge column 403；Reinforcing rib 4041, which is arranged, simultaneously can be used as The mounting bracket of taillight increases lamp support without additional, realizes good appearance, and reduce material cost, saves installation lamp bracket Time so that production cost reduce.

As shown in figure 29, the lateral surface of two edge columns 403 is arc transiting surface 4031, that is, from edge column 403 The arcwall face of front end face backwards face transition.It can be relieved collision when there is side collision by the way that arc transiting surface 4031 is arranged Damage more effectively enhances the security reliability of rear bumper 400.

As shown in figure 29, crosspiece 402 is the aluminum profile with rectangular chamber, its section is hollow rectangular knot in other words Structure.Crosspiece 402 has higher composite bending modulus in vehicle forward direction in this way, has higher bending resistance in cross-wise direction in other words Modulus；The entire upper surface area of crosspiece 402 is larger simultaneously, and crosspiece 402 is set as hollow structure, is guaranteeing sufficient intensity basis On rear bumper weight is effectively reduced, while having saved material.

In the present embodiment, it is equipped with several anti-skidding tongues 4021 to raise upward on the upper surface of crosspiece 402, crosspiece is set 402 wider width in the longitudinal direction, on the one hand can increase the intensity of crosspiece 402, on the other hand can make crosspiece 402 are provided with the function of pedal, meet the requirement conveniently got on or off the bus, more convenient safety；And special setting pedal is avoided, Further decrease production cost.

The foregoing is merely preferable possible embodiments of the invention, not limit the scope of the invention, all with this The variation of equivalent structure made by description of the invention and accompanying drawing content, is included within the scope of protection of the present invention.

Claims (6)

1. a kind of semitrailer, which is characterized in that there is the semitrailer longitudinal direction two stringers are arranged in parallel and on stringer Floor；The stringer includes upper flange, lower wing plate and web, and the stringer passes through fastener for the upper flange, bottom wing Plate and web assembly are fixed-type；The upper limb that the upper flange has upper flange ontology and extends downwardly along upper flange ontology Plate mounting portion；The upper flange ontology has the first noumenon being located on the inside of the upper flange mounting portion and is located at the upper flange The second ontology on the outside of mounting portion, the width of the first noumenon are less than the width of second ontology；The first noumenon Lower surface is parallel with upper surface, and the lower surface of second ontology successively includes the first inclined-plane and upper flange ontology from outside to inside Parallel the first plane and the second inclined-plane in upper surface；The first plane and the first noumenon on second ontology Lower surface is in the same plane；The floor includes more first floor profiles being laterally laid on two stringers, adjacent Two first floor profiles between be mutually clamped；The side lower part use with outward extension of first floor profile In extending mounting plate outside first assembled with the stringer, it is recessed that another side lower part of first floor profile is equipped with the first installation Slot and extend mounting plate along first that the inside bending in the edge of the first installation groove extends；It is folded to extend mounting plate in described first It is added in the top for extending mounting plate outside first connect adjacent thereto, fastener passes through to extend in first to be extended outside mounting plate and first Mounting plate is simultaneously fixed with the stringer.

2. semitrailer according to claim 1, which is characterized in that the upper flange and lower wing plate are profile, under described The lower wing plate mounting portion that wing plate has lower wing plate ontology and upwardly extends along lower wing plate ontology.

3. semitrailer according to claim 1, which is characterized in that its of the upper flange mounting portion and lower wing plate mounting portion In one be vertical plate, the end of the another one of the upper flange mounting portion and lower wing plate mounting portion is equipped with and vertical plate phase Matched wing plate recess, the vertical plate are located in the recess.

4. semitrailer according to claim 1, which is characterized in that the web be located at the upper flange and lower wing plate it Between, the upper and lower ends portion of the web is fixedly connected with the upper flange and lower wing plate by fastener respectively.

5. semitrailer according to claim 4, which is characterized in that the upper flange mounting portion is equipped with and the web The upper flange recess that upper end matches, the lower wing plate mounting portion are equipped with the bottom wing to match with the lower end of the web Plate recess.

6. semitrailer according to claim 1, which is characterized in that the angle between first inclined-plane and horizontal plane is greater than Or equal to the angle between second inclined-plane and horizontal plane.