The connecting device of a kind of car body of aluminum alloy roof skeleton and side wall frame
Technical field
The utility model relates to a kind of connecting device that is used for bus body, relate in particular to the connecting device of a kind of car body of aluminum alloy roof skeleton and side wall frame, specifically be applicable to being connected between the side wall frame of roof skeleton and its left and right sides on the aluminum alloy bus body.
Background technology
At present, along with more and more higher to the automobile environment-protection performance demands, the automobile lightweight also comes into one's own day by day as realizing one of effective way of this requirement.
It is to realize bus body weight-saving most effectual way that bus body uses aluminium alloy extrusions to weld, and generally speaking, the employing car body of aluminum alloy can make bus body loss of weight about 40%, and effect is fairly obvious.But since aluminium alloy extrusions push heat treatment after its stretch ratio reduce greatly, thereby have certain difficulty when the bending by the roof skeleton of the vehicle body of its manufacturing, and could bending after often needing to heat, this increases technology difficulty and cost, and the bonded assembly strength and stiffness are also lower.In addition, the small bore square tube aluminium alloy extrusions that the body framwork of present aluminum alloy passenger vehicle all adopts similar steel body skeleton structure to be adopted, this causes the overall width of the existing required covering of bus roof outer skeleton is about 2.5m, surpassed the rolling wide cut of domestic maximum, the domestic aluminium alloy plate that can't produce this width can only adopt the aluminium sheet of little wide cut to splice, and solder joint is many, cost is high, the welding and assembling technics more complicated has increased the welding cost of covering.So in the aluminum alloy bus body, adopt the skeleton structure of similar steel body, can not well embody the advantage of aluminum alloy extrusion section bar, also make shaping and welding and assembling technics complicated more simultaneously.
The Chinese patent Granted publication number is CN2337040Y, Granted publication day is that the utility model patent on September 8th, 1999 discloses a kind of bus roof outer, relate in particular to the bus roof outer that has the sightseeing window on the top cover, this utility model has roof skeleton, top cover limit longeron and top cover and covers plate, top cover covers plate and is connected with roof skeleton, also be connected with the window frame that the angle skeleton constitutes that opens of two above transverse belt radians between the longeron of roof skeleton and the top cover limit longeron, the armored glass with radian is bonded in window frame.Though the roof skeleton in this utility model, side wall frame are not taked integrative-structure, but connect by opening the angle skeleton, can reduce the bending difficulty of roof skeleton, but it only connects roof skeleton, side wall frame by opening the angle skeleton, bonded assembly intensity, rigidity all a little less than, especially the angle skeleton that opens that it adopts only comprises inside and outside two compressive planes, and supplemental support equipment is not set between inside and outside compressive plane, mechanical characteristics is relatively poor, has further reduced Joint strenght and rigidity between roof skeleton, the side wall frame.
Summary of the invention
The purpose of this utility model be overcome that the technology cost that exists in the prior art is higher, Joint strenght and rigidity is lower, the covering welding cost is higher defective and problem, provide that a kind of technology cost is lower, Joint strenght and rigidity is higher, the covering welding cost the is lower car body of aluminum alloy roof skeleton and the connecting device of side wall frame.
For realizing above purpose, technical solution of the present utility model is: the connecting device of a kind of car body of aluminum alloy roof skeleton and side wall frame, comprise with compressive plane in outer compressive plane of the chamfering section bar of radian and the chamfering section bar, an end of compressive plane all is connected with roof skeleton in the outer compressive plane of described chamfering section bar, the chamfering section bar, and the other end all is connected with side wall frame; The outer compressive plane of described chamfering section bar is connected with compressive plane in the chamfering section bar by a sealing muscle, No. two sealing muscle, and sealing muscle, No. two sealing muscle all with the chamfering section bar outside compressive plane, the interior compressive plane of chamfering section bar perpendicular; Be provided with at least two reinforced ribs between a described sealing muscle and No. two sealing muscle.
Described reinforced rib is oblique reinforced rib, and is formed with triangular open space between the compressive plane in adjacent oblique reinforced rib and outer compressive plane of chamfering section bar or the chamfering section bar.
Described reinforced rib is straight reinforced rib, is formed with rectangular apertures jointly between the compressive plane in the outer compressive plane of adjacent straight reinforced rib and chamfering section bar, the chamfering section bar.
The two ends of the outer compressive plane of described chamfering section bar are respectively arranged with an extra bevel for welding and two extra bevel for weldings, the two ends of the interior compressive plane of chamfering section bar be respectively arranged with corresponding No. one of an extra bevel for welding, two extra bevel for weldings in bevel for welding in bevel for welding and No. two.
The position of a nearly extra bevel for welding, two extra bevel for weldings is respectively arranged with a roof outer panel and connects step and be connected step with No. two roof outer panels on the outer compressive plane of described chamfering section bar.
Be provided with connector bushing No. one between the bevel for welding in a described extra bevel for welding and No. one, be provided with connector bushing No. two between the bevel for welding in two extra bevel for weldings and No. two; An end interference fit of compressive plane in the outer compressive plane of one end of a described connector bushing and chamfering section bar, the chamfering section bar, the other end of a connector bushing and roof skeleton interference fit; Other end interference fit, the other end of No. two connector bushings and the side wall frame interference fit of compressive plane in the outer compressive plane of one end of described No. two connector bushings and chamfering section bar, the chamfering section bar.
The cross-sectional plane of a described connector bushing, No. two connector bushings is a rectangle.
The inside of a described connector bushing, No. two connector bushings is provided with the sleeve pipe reinforced rib.
Compared with prior art, the beneficial effects of the utility model are:
1, since in the connecting device of a kind of car body of aluminum alloy roof skeleton of the utility model and side wall frame an end of the outer compressive plane of chamfering section bar, the interior compressive plane of chamfering section bar all be connected with roof skeleton, the other end all is connected with side wall frame, be that roof skeleton, side wall frame are not integrative-structures, but connect by compressive plane in the outer compressive plane of chamfering section bar, the chamfering section bar, thereby do not need roof skeleton is carried out the bending heating, compared with prior art, technology difficulty and cost have been reduced.Therefore technology cost of the present utility model is lower.
2, since in the connecting device of a kind of car body of aluminum alloy roof skeleton of the utility model and side wall frame outside the chamfering section bar compressive plane, be provided with a sealing muscle and No. two sealing muscle in the chamfering section bar between the compressive plane, and between a sealing muscle and No. two sealing muscle, be provided with at least two reinforced ribs, this kind structure design has increased the integral rigidity and the intensity of this device, thereby improved roof skeleton, coupling stiffness between the side wall frame and intensity, in addition, this device is compressive plane outside the chamfering section bar also, the two ends of compressive plane are respectively arranged with a connector bushing and No. two connector bushings in the chamfering section bar, during welding, a connector bushing, the part of No. two connector bushings is positioned at the outer compressive plane of chamfering section bar, the inside of compressive plane in the chamfering section bar, another part is positioned at the inside of roof skeleton or side wall frame, thereby further strengthens roof skeleton, coupling stiffness between the side wall frame and intensity.Therefore Joint strenght of the present utility model and rigidity are all higher.
3, since in the connecting device of a kind of car body of aluminum alloy roof skeleton of the utility model and side wall frame outside the chamfering section bar a nearly extra bevel for welding on the compressive plane, the position of two extra bevel for weldings is respectively arranged with a roof outer panel connection step and is connected step with No. two roof outer panels, No. one roof outer panel connects step, the setting of No. two roof outer panel connection steps just flushes with the outside face of the outer compressive plane of chamfering section bar after can making the covering welding, at this moment, the outside face of the outer compressive plane of chamfering section bar just can directly use as vehicle body outside surface, thereby reduce the integral width of covering, make it maximum rolling wide cut less than domestic aluminium alloy plate, and then can directly adopt one whole aluminium alloy plate as roof outer panel, reduced the welding cost of covering.Therefore the utility model can reduce the welding cost of covering.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the whole connection diagram of the utility model and roof skeleton, side wall frame.
Fig. 3 is the connection diagram of the utility model and roof skeleton.
Fig. 4 is the connection diagram of the utility model and side wall frame.
Fig. 5 is a kind of structural representation of this practical middle reinforced rib.
Fig. 6 is the another kind of structural representation of this practical middle reinforced rib.
Fig. 7 is the structural representation of this practical middle sleeve reinforced rib.
Among the figure: the outer compressive plane 1 of chamfering section bar, compressive plane 2 in the chamfering section bar, roof skeleton 3, side wall frame 4,5, No. two sealings of sealing muscle muscle 6, reinforced rib 7, oblique reinforced rib 71, triangular open space 72, straight reinforced rib 73, rectangular apertures 74, one extra bevel for welding 8, a roof outer panel connects 9, No. two roof outer panels of step 81, two extra bevel for weldings and connects step 91, bevel for welding 10 in No. one, 12, No. two connector bushings 13 of 11, numbers connector bushings of bevel for welding in No. two, sleeve pipe reinforced rib 14, covering 15.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail
Referring to figure 1 – Fig. 7, the connecting device of a kind of car body of aluminum alloy roof skeleton and side wall frame, comprise with compressive plane 2 in outer compressive plane 1 of the chamfering section bar of radian and the chamfering section bar, an end of compressive plane 2 all is connected with roof skeleton 3 in the outer compressive plane 1 of described chamfering section bar, the chamfering section bar, and the other end all is connected with side wall frame 4; The outer compressive plane 1 of described chamfering section bar is connected with compressive plane 2 in the chamfering section bar by sealing muscle 5, No. two sealing muscle 6, and sealing muscle 5, No. two sealing muscle 6 all with the chamfering section bar outside compressive plane 1, the interior compressive plane 2 of chamfering section bar perpendicular; Be provided with at least two reinforced ribs 7 between a described sealing muscle 5 and No. two sealing muscle 6.
Described reinforced rib 7 is oblique reinforced rib 71, and is formed with triangular open space 72 between the compressive plane 2 in adjacent oblique reinforced rib 71 and outer compressive plane 1 of chamfering section bar or the chamfering section bar.
Described reinforced rib 7 is straight reinforced rib 73, is formed with rectangular apertures 74 jointly between the compressive plane 2 in the outer compressive plane 1 of adjacent straight reinforced rib 73 and chamfering section bar, the chamfering section bar.
The two ends of the outer compressive plane 1 of described chamfering section bar are respectively arranged with an extra bevel for welding 8 and two extra bevel for weldings 9, and the two ends of the interior compressive plane 2 of chamfering section bar are respectively arranged with and an extra bevel for welding 8, two extra bevel for weldings 9 bevel for welding 11 in bevel for welding 10 and No. two in corresponding No..
The position of a nearly extra bevel for welding 8, two extra bevel for weldings 9 is respectively arranged with a roof outer panel and connects step 81 and be connected step 91 with No. two roof outer panels on the outer compressive plane 1 of described chamfering section bar.
Be provided with between the bevel for welding 10 in a described extra bevel for welding 8 and No. one in connector bushing 12, two extra bevel for welding 9 and No. two and be provided with connector bushing 13 No. two between the bevel for welding 11; An end interference fit of compressive plane 2 in the outer compressive plane 1 of one end of a described connector bushing 12 and chamfering section bar, the chamfering section bar, the other end of a connector bushing 12 and roof skeleton 3 interference fit; Other end interference fit, the other end of No. two connector bushings 13 and side wall frame 4 interference fit of compressive plane 2 in the outer compressive plane 1 of one end of described No. two connector bushings 13 and chamfering section bar, the chamfering section bar.
The cross-sectional plane of a described connector bushing 12, No. two connector bushings 13 is a rectangle.
The inside of a described connector bushing 12, No. two connector bushings 13 is provided with sleeve pipe reinforced rib 14.
This connecting device is a kind of heavy in section chamfering extrudate that is used to connect aluminum alloy bus body upper top cover skeleton 3 and side wall frame 4, the manufacturing of general employing aluminum alloy, the surfaces externally and internally of this section bar is with compressive plane 2 in outer compressive plane 1 of the chamfering section bar of radian and the chamfering section bar, needs the part of chamfering bending in the alternative prior art on roof skeleton 3 two ends.The two ends of compressive plane 2 are connected with roof skeleton 3 or side wall frame 4 by an embedded connector bushing 12, No. two connector bushings 13 respectively in the outer compressive plane 1 of chamfering section bar, the chamfering section bar, and outside the chamfering section bar, be provided with between the compressive plane 2 in compressive plane 1, the chamfering section bar 6, numbers sealings of No. one of usefulness sealing of sealing muscle 5 and No. two sealing muscle muscle 5 and No. two sealing muscle 6 generally the aluminum alloy square tubes of employing same curvature and thickness make.A nearly extra bevel for welding 8 on the compressive plane 1 outside the chamfering section bar simultaneously, the position of two extra bevel for weldings 9 is respectively arranged with a roof outer panel connection step 81 and is connected step 91 with No. two roof outer panels, No. one roof outer panel connects step 81, No. two roof outer panels connection steps 91 just flush with the outside face of the outer compressive plane 1 of chamfering section bar after can making covering 15 welding, because this outside face can directly use as vehicle body outside surface, so the width of covering 15 can be reduced, make it less than the maximum rolling wide cut of domestic aluminium alloy plate, therefore can directly adopt one whole aluminium alloy plate as roof outer panel 15, reduced the welding difficulty of covering 15, in addition, a roof outer panel is connected step 81, No. two roof outer panels connect and can carry out TIG weldering straight line between the edge of step 91 and covering 15 and weld, and are convenient to simplify technology.
The thickness of the reinforced rib 7 that is provided with in this device and quantity can design according to the stressed of part and lightweight demand.In addition, 12, No. two connector bushings 13 of a connector bushing have band sleeve pipe reinforced rib 14 and are not with 14 two kinds of designs of sleeve pipe reinforced rib.
During use, elder generation's compressive plane 1 outside the chamfering section bar, embed a connector bushing 12 in the chamfering section bar between compressive plane 2 and the roof skeleton 3, the interior surface curvature of the outer compressive plane 1 of the outer surface curvature of this connector bushing 12 and chamfering section bar, the outer surface curvature of compressive plane 2 matches in the chamfering section bar, and adopt a small amount of interference to embed, then at an extra bevel for welding 8, weld at bevel for welding 10 places in No. one, after the welding, covering 15 being positioned over roof outer panel connection step 81 places that are provided with on the outer compressive plane 1 of chamfering section bar welds again, butt welded seam is polished then, makes it the outside face fairing and is convenient to application.Side wall frame 4 is identical with the connection mode of this device with the connection mode and the roof skeleton 3 of this device.
Therefore not only the technology cost is lower for the utility model, Joint strenght and rigidity are higher, and can reduce the welding cost of covering.