CN212950859U - Front girder reinforcing assembly - Google Patents
Front girder reinforcing assembly Download PDFInfo
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- CN212950859U CN212950859U CN202021429504.2U CN202021429504U CN212950859U CN 212950859 U CN212950859 U CN 212950859U CN 202021429504 U CN202021429504 U CN 202021429504U CN 212950859 U CN212950859 U CN 212950859U
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Abstract
The utility model discloses a subassembly is strengthened to preceding girder draws together preceding floor beam, preceding girder back end, threshold connecting plate and preceding girder extension, both ends are fixed with the front end two-layer formula of the rear end of preceding girder anterior segment and well girder respectively around the preceding girder back end, preceding girder extension by the inboard inside extension of preceding girder back end is buckled to the front side of preceding floor beam, both ends are respectively with the left and right sides about the preceding floor beam the two-layer formula of preceding girder back end is fixed, the inside and outside both sides of threshold connecting plate respectively with the rear portion outside of preceding girder back end and the anterior inboard two-layer formula of threshold inner panel are fixed. The utility model discloses a preceding girder reinforcing component simple structure, found new pass power passageway and improve automobile body rigidity, improve the intensity that resists collision deformation, reduce the solder joint and peel off the not enough risk probability in foot space that ground caused and improve production efficiency.
Description
Technical Field
The utility model relates to an automobile body technical field especially relates to a subassembly is strengthened to preceding girder.
Background
The front girder is an important bearing part in a vehicle body structure, and is also a key part for a front 100% overlapping rigid barrier collision test and a front 40% overlapping deformable barrier collision test, the front girder reinforcing assembly in the prior art can arrange two small longitudinal beams of a central channel on the left and right sides of the central channel, so that the stress of the front girder is dispersed to the rear section of the front girder through the front section of the front girder when colliding, the inner plate of a threshold and the small longitudinal beams of the central channel, the bottom surface of the rear section of the front girder has no connection structure strength with the top surface of the inner plate of the front girder, the front floor and the front part of the rear section of the front girder are subjected to two-protection welding by using an overlap joint structure, and:
1. for a vehicle model without a central channel small longitudinal beam, the deformation of the force transmission channel is large when the force transmission channel is lost and collided:
2. the bottom surface of the rear section of the front girder is not connected with the top surface of the inner plate of the front girder, and the bending part of the girder has insufficient strength and is easy to deform during collision;
3. the second welding protection intensity is low, and the welding spot is easy to peel off the floor and arch up during collision, so that the foot space is not enough.
Disclosure of Invention
The utility model relates to a solve not enough among the prior art and accomplish, the utility model aims at providing a simple structure, found new power transmission channel and improve automobile body rigidity, improve the intensity that resists collision deformation, reduce the solder joint and peel off the not enough risk probability in foot space that ground caused and improve production efficiency's preceding girder additional strengthening subassembly.
The utility model discloses a subassembly is strengthened to preceding girder, including preceding floor crossbeam, preceding girder back end, threshold connecting plate and preceding girder extension, both ends are fixed with the rear end of preceding girder anterior segment and the front end two-layer type of well girder respectively around the preceding girder back end, the threshold connecting plate with preceding girder extension is fixed in two layers respectively the inside and outside both sides of preceding girder back end, preceding girder extension by the inboard inwards extension of preceding girder back end is buckled to the front side of preceding floor crossbeam, both ends are fixed with the left and right sides respectively about the preceding floor crossbeam the two-layer type of preceding girder back end is fixed, the inside and outside both sides of threshold connecting plate respectively with the rear portion outside of preceding girder back end and the anterior inboard two-layer type of threshold inner panel are fixed.
The utility model discloses a subassembly can also be strengthened to preceding girder:
the cross section of preceding girder rear section is for "nearly" font structure, the inboard two-layer type of preceding girder rear section is fixed with the preceding girder inner panel that the cross section is "U" font, the lateral wall of preceding girder inner panel left and right sides with the lateral wall of preceding girder rear section left and right sides is two laminar fixed respectively, preceding girder inner panel with preceding girder rear section encloses to establish and forms the cross section and be the confined "mouth" font cavity.
The bending part of preceding girder back end is provided with preceding girder reinforcing plate, the anterior top surface of preceding girder reinforcing plate with the bottom surface two-layer type of preceding girder inner panel is fixed, the rear portion bottom surface of preceding girder reinforcing plate with the bottom surface two-layer type of preceding girder back end is fixed, preceding girder reinforcing plate by extend to behind the bottom surface slant of preceding girder inner panel the bottom surface of preceding girder back end.
The front side top surface of the front girder reinforcing plate and the bottom surface of the front girder inner plate are provided with overlapping parts, and the front side top surface of the front girder reinforcing plate and the bottom surface of the front girder inner plate are fixed in a two-layer welding mode at the corresponding positions of the overlapping parts.
The rear side bottom surface of the front girder reinforcing plate and the bottom surface of the rear section of the front girder are provided with overlapping parts, and the rear side bottom surface of the front girder reinforcing plate and the bottom surface of the rear section of the front girder are fixed in a two-layer welding manner at the corresponding positions of the overlapping parts.
The cross section of the front girder reinforcing plate is of a U-shaped structure, and the side walls of the left side and the right side of the front girder reinforcing plate and the side walls of the left side and the right side of the rear section of the front girder are respectively fixed in a two-layer mode.
The threshold connecting plate and the front wall plate are enclosed to form a closed cavity structure, and a first avoidance hole is formed in the outer side of the corresponding position where the threshold connecting plate is connected with the rear section of the front girder.
Preceding girder extension encloses with preceding bounding wall and establishes and forms confined cavity structures, preceding girder extension with the corresponding position department inboard that preceding girder back end is connected is provided with the second and dodges the hole.
The outer side of the rear part of the rear section of the front girder is provided with a beam extension piece, the inner side and the outer side of the beam extension piece are respectively fixed with the rear section of the front girder and the inner doorsill plate in a two-layer manner, and the outer side of the joint of the front floor beam and the rear section of the front girder extends to the inner doorsill plate.
The utility model discloses a subassembly is strengthened to preceding girder, including preceding floor crossbeam, preceding girder back end, threshold connecting plate and preceding girder extension, both ends are fixed with the rear end of preceding girder anterior segment and the front end two-layer type of well girder respectively around the preceding girder back end, the threshold connecting plate with preceding girder extension is fixed in two layers respectively the inside and outside both sides of preceding girder back end, preceding girder extension by the inboard inwards extension of preceding girder back end is buckled to the front side of preceding floor crossbeam, both ends are fixed with the left and right sides respectively about the preceding floor crossbeam the two-layer type of preceding girder back end is fixed, the inside and outside both sides of threshold connecting plate respectively with the rear portion outside of preceding girder back end and the anterior inboard two-layer type of threshold inner panel are fixed. Thus, the front end of the rear section of the front girder is fixed with the rear end of the front section of the front girder in a two-layer manner, the threshold connecting plate and the front girder extension piece are respectively arranged on the inner side and the outer side of the rear section of the front girder, the inner side and the outer side of the threshold connecting plate are respectively fixed with the outer side of the rear section of the front girder and the inner side of the front inner plate in a two-layer manner, the outer side and the rear part of the front girder extension piece are respectively fixed with the rear section of the front girder and the front floor beam, the front girder extension piece and the threshold connecting plate respectively form a force transmission channel on the inner side and the outer side of the rear section of the front girder, particularly, the front girder extension piece solves the problem that the force transmission channel on the inner side of a vehicle type without a center channel minor girder is missing, when an automobile is collided, the force borne by the front section of the front girder is transmitted to the rear section of the front girder, a, and then the force transmitted to the rear section of the front girder is further weakened through the left end and the right end of the front floor beam, the force transmitted through the front girder extension piece and the front floor beam is greatly weakened relative to the force directly transmitted to the rear section of the front girder from the front section of the front girder, a new force transmission channel is further constructed by the front girder extension piece and the front floor beam, the rigidity of the vehicle body is improved, the front girder extension piece extends inwards from the inner side of the rear section of the front girder to be bent to the front side of the front floor beam, the bent front girder extension piece increases the force transmission distance, and then the transmitted force can be further reduced along with the increase of the force transmission distance. In addition, the threshold connecting plate is arranged between the rear section of the front girder and the threshold inner plate, so that the impact force can be smoothly transmitted to the threshold inner plate through the threshold connecting plate and then transmitted to the rear part of the vehicle body along the threshold inner plate, the impact force directly transmitted from the front section of the front girder to the rear section of the front girder is dispersed, and the rigidity of the joint of the front section of the front girder and the rear section of the front girder is increased. The utility model discloses a subassembly is strengthened to preceding girder is, for prior art's advantage is: the structure is simple, a new force transmission channel is constructed, the rigidity of the vehicle body is improved, the strength for resisting collision deformation is improved, the risk probability of insufficient foot space caused by the fact that a welding spot is peeled off the ground is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a bottom view of a front girder reinforcement assembly of the present invention.
Fig. 2 the utility model relates to a preceding girder strengthens subassembly enlargements of fig. 1A department.
Fig. 3 is a cross-sectional view of a front rail reinforcement assembly of the present invention taken along fig. 2B-B.
Fig. 4 is a cross-sectional view of a front rail reinforcement assembly of the present invention taken along fig. 2C-C.
Fig. 5 the utility model relates to a preceding girder strengthens subassembly fig. 1 and gets rid of preceding bounding wall and preceding floor schematic diagram.
Fig. 6 is an exploded view of the rear section of the front girder, the inner plate of the front girder and the reinforcing plate of the front girder in the front girder reinforcing assembly of the present invention.
Fig. 7 a cross-sectional view of a front rail reinforcement assembly of the present invention taken along fig. 2D-D.
Description of the figures
1 … front girder rear section 2 … doorsill connecting plate 3 … front wall plate
4 … sill inner panel 5 … front girder extension 6 … front floor beam
7 … Beam extension 8 … front Beam inner Panel 9 … front Beam stiffener
10 … second avoidance hole 11 … first avoidance hole 12 … front floor reinforcing plate
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses a preceding girder strengthens subassembly bilateral symmetry, the utility model discloses a strengthen subassembly with the left preceding girder that is located automobile body explains as the example. The front member extension 5 is located on the front side, the front floor cross member 6 is located on the rear side, the rocker inner panel 4 is located on the outer side, and the front floor cross member 6 is located on the inner side, and thus the directions of "front", "rear", "inner" and "outer" are determined.
A front girder reinforcing assembly according to the present invention will be described in further detail with reference to fig. 1 to 7 of the accompanying drawings.
The front girder reinforcing assembly of the present invention, please refer to the related drawings in fig. 1 to 7, comprises a front floor beam 6, a front girder rear section 1, a threshold connecting plate 2 and a front girder extension 5, the front end and the rear end of the rear section 1 of the front girder are respectively fixed with the rear end of the front section of the front girder and the front end of the middle girder in a two-layer manner, the threshold connecting plate 2 and the front girder extension piece 5 are respectively fixed on the inner side and the outer side of the rear section 1 of the front girder in a two-layer manner, the front girder extension 5 extends and bends from the inner side of the front girder rear section 1 to the front side of the front floor crossmember 6, the left end and the right end of the front floor beam 6 are respectively fixed with the rear sections 1 of the front girders at the left side and the right side in a two-layer mode, the inner side and the outer side of the threshold connecting plate 2 are respectively fixed with the outer side of the rear part of the front girder rear section 1 and the inner side of the front part of the threshold inner plate 4 in a two-layer mode. Thus, the front end of the front girder rear section 1 is fixed with the rear end of the front girder front section in a two-layer manner, the threshold connecting plate 2 and the front girder extension piece 5 are respectively arranged on the inner side and the outer side of the front girder rear section 1, the inner side and the outer side of the threshold connecting plate 2 are respectively fixed with the rear outer side of the front girder rear section 1 and the front inner side of the threshold inner plate 4 in a two-layer manner, the front outer side and the rear portion of the front girder extension piece 5 are respectively fixed with the front girder rear section 1 and the front floor beam 6, the front girder extension piece 5 and the threshold connecting plate 2 respectively form a force transmission channel on the inner side and the outer side of the front girder rear section 1, particularly, the front girder extension piece 5 solves the problem of the defect of the vehicle type inner side force transmission channel without a center channel stringer, when the vehicle is collided, the force received by the front girder front section is transmitted to the front girder rear section 1, a part of force can be transmitted to the front floor beam 6 through the front girder extension 5, and then further weakened and transmitted to the front girder rear section 1 through the left and right ends of the front floor beam 6, at this time, the force transmitted through the front girder extension 5 and the front floor beam 6 is greatly weakened relative to the force directly transmitted from the front girder front section to the front girder rear section 1, and then a new force transmission channel is constructed by the front girder extension 5 and the front floor beam 6 to improve the rigidity of the vehicle body, the front girder extension 5 extends and bends from the inner side of the front girder rear section 1 to the front side of the front floor beam 6, the bent front girder extension 5 increases the force transmission distance, and further, the transmitted force is further reduced along with the increase of the force transmission distance. In addition, the threshold connecting plate 2 is arranged between the front girder rear section 1 and the threshold inner plate 4, so that the collision force can be smoothly transmitted to the threshold inner plate 4 through the threshold connecting plate 2 and then transmitted to the rear part of the vehicle body along the threshold inner plate 4, the collision force directly transmitted from the front section of the front girder to the front girder rear section 1 is dispersed, and the rigidity of the joint of the front section of the front girder and the front girder rear section 1 is increased. The utility model discloses a subassembly is strengthened to preceding girder is, for prior art's advantage is: the structure is simple, a new force transmission channel is constructed, the rigidity of the vehicle body is improved, the strength for resisting collision deformation is improved, the risk probability of insufficient foot space caused by the fact that a welding spot is peeled off the ground is reduced, and the production efficiency is improved.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: the cross section of preceding girder back end 1 is for "nearly" font structure of falling, the inboard two-layer type of preceding girder back end 1 is fixed with the preceding girder inner panel 8 that the cross section is "U" font, the lateral wall of the left and right sides of preceding girder inner panel 8 with the lateral wall of the 1 left and right sides of preceding girder back end is two laminar fixed respectively, preceding girder inner panel 8 with preceding girder back end 1 encloses to establish and forms the cross section and be confined "mouthful" font cavity. Thus, the cross section of the front girder rear section 1 is a section formed by breaking the front girder rear section 1 by a plane perpendicular to the length direction of the front girder rear section 1 and is of an inverted U-shaped structure, the cross section of the front girder inner plate 8 is a section formed by breaking the front girder inner plate 8 by a plane perpendicular to the length direction of the front girder inner plate 8 and is in a U shape, the front girder inner plate 8 is placed into an inner cavity formed by enclosing the front girder rear section 1, the concave surfaces of the front girder inner plate 8 and the front girder rear section 1 are in the same orientation, the side walls of the left side and the right side of the front girder inner plate 8 and the side walls of the left side and the right side of the front girder rear section 1 are respectively superposed, the two layers of fixing are respectively carried out on the side walls of the front girder inner plate 8 and the side wall of the front girder rear section 1, and the plane perpendicular to the length direction of the front girder inner plate 8 and the front girder rear section 1 is, preceding girder inner panel 8 with preceding girder back end 1 encloses the closed cavity of establishing formation and is "mouthful" font structure, like this the lateral wall of 1 bottom surface of preceding girder back end and left and right sides provides the bottom surface and two sides of "mouthful" font structure, the bottom surface of preceding girder inner panel 8 provides the top surface of "mouthful" font structure, and both enclose to establish the cavity structure of formation and increased preceding girder back end 1's rigidity and intensity. According to a further preferable technical scheme, a front girder reinforcing plate 9 is arranged at a bent part of the front girder rear section 1, the top surface of the front part of the front girder reinforcing plate 9 is fixed with the bottom surface of the front girder inner plate 8 in a two-layer manner, the bottom surface of the rear part of the front girder reinforcing plate 9 is fixed with the bottom surface of the front girder rear section 1 in a two-layer manner, and the front girder reinforcing plate 9 extends to the bottom surface of the front girder rear section 1 from the bottom surface of the front girder inner plate 8 in an inclined manner. Thus, the top of the front end of the front side member reinforcing plate 9 and the bottom of the front side member inner plate 8 are fixed in two layers, the bottom of the rear end of the front girder reinforcing plate 9 and the bottom surface of the rear section 1 of the front girder are fixed in a two-layer manner, so that the middle part of the front girder reinforcing plate 9 obliquely extends from the bottom surface of the front girder inner plate 8 to the bottom surface of the front girder rear section 1 along the cavity, the front girder reinforcing plate 9 increases a connection path between the front girder rear section 1 and the front girder inner plate 8, namely, the front girder rear section 1 and the front girder inner plate 8 are not only fixed in two layers by the side walls at the left and right sides, but also connected in a reinforcing manner by the front girder reinforcing plate 9, therefore, the front-side member reinforcement plate 9 increases the connection strength of the front-side member rear section 1 at the bend thereof and the front-side member inner plate 8, thereby improving the strength against collision deformation. A further preferable technical scheme is that the front top surface of the front girder reinforcing plate 9 and the bottom surface of the front girder inner plate 8 have an overlapping portion, and the front top surface of the front girder reinforcing plate 9 and the bottom surface of the front girder inner plate 8 are fixed by two-layer welding at a position corresponding to the overlapping portion. Like this, will the front side top surface of preceding girder reinforcing plate 9 with the bottom surface of preceding girder inner panel 8 two-layer welding formula welded fastening in the cavity makes the front side top surface of preceding girder reinforcing plate 9 with preceding girder inner panel 8 closely laminates and fixes, has increased the front side top of preceding girder reinforcing plate 9 with rigidity of being connected between the preceding girder inner panel 8 makes the impact can smoothly be in preceding girder inner panel 8 with longitudinal transfer between the preceding girder reinforcing plate 9.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: the bottom surface of the rear side of the front girder reinforcing plate 9 and the bottom surface of the rear section 1 of the front girder are provided with overlapping parts, and the bottom surface of the rear side of the front girder reinforcing plate 9 and the bottom surface of the rear section 1 of the front girder are fixed in a two-layer welding manner at the corresponding positions of the overlapping parts. Like this, the rear side bottom surface of preceding girder reinforcing plate 9 with the bottom surface of preceding girder back end 1 two-layer welding formula welded fastening in the cavity makes the rear side bottom surface of preceding girder reinforcing plate 9 with the bottom surface of preceding girder back end 1 closely laminates and is fixed, has increased the rear side bottom of preceding girder reinforcing plate 9 with the rigidity of being connected between the preceding girder back end 1 makes the impact can smoothly be in preceding girder back end 1 with longitudinal transmission between the preceding girder reinforcing plate 9.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: the cross section of the front girder reinforcing plate 9 is of a U-shaped structure, and the side walls of the left side and the right side of the front girder reinforcing plate 9 are respectively fixed with the side walls of the left side and the right side of the front girder rear section 1 in a two-layer manner. Like this, the lateral wall of the left and right sides of preceding girder reinforcing plate 9 respectively with the two laminar fixed of lateral wall of the 1 left and right sides of preceding girder back end, the bottom surface of preceding girder reinforcing plate 9 can play the fagging effect of the 1 inner chamber of preceding girder back end makes preceding girder back end 1 receives during the bump force, can pass through preceding girder reinforcing plate 9 is directly transmitted to the lateral wall on right side by left lateral wall, promptly preceding girder reinforcing plate 9 has still increased preceding girder back end 1's horizontal biography power passageway, and then makes the impact force not only can pass through preceding girder back end 1's bottom surface with the horizontal transmission of bottom surface of preceding girder inner panel 8, can also by the horizontal transmission of bottom surface of preceding girder reinforcing plate 9, and then increased preceding girder back end 1 with preceding girder inner panel 8 encloses the cavity lateral rigidity who establishes the formation.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: threshold connecting plate 2 encloses with preceding bounding wall 3 and establishes and form confined cavity structure, threshold connecting plate 2 with the corresponding position department outside that preceding girder back end 1 is connected is provided with first dodge hole 11. Thus, the threshold connecting plate 2 and the front wall plate 3 are enclosed to form a closed cavity structure, the front wall plate 3, the outer side of the front girder rear section 1 and the front floor reinforcing plate 12 need three-layer welding and fixing at the position, because three-layer welding is adopted, two-layer welding which is usually adopted can only be used for welding between two layers of plates, namely two-layer welding is adopted, the outer side of the front girder rear section 1 and the three layers of the front floor reinforcing plate 12 are simultaneously welded at the position, therefore, spot welding with higher welding strength needs to be adopted, the threshold connecting plate 2 at the corresponding position of the three-layer welding is provided with the first avoiding hole 11, and an electrode used by the spot welding can be directly contacted with the welding position. The welding mode of spot welding can reduce the risk that the foot space is not enough because the welding spot peels off the floor arch when colliding, reduces the number of manual repair welding of two-layer welding in a workshop and improves the production efficiency.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: preceding girder extension 5 encloses with preceding bounding wall 3 and establishes and form confined cavity structures, preceding girder extension 5 with the corresponding position department inboard that preceding girder back end 1 is connected is provided with the second and dodges hole 10. Like this, preceding girder extension 5 encloses with dash panel 3 and establishes and form confined cavity structure, and dash panel 3 preceding girder back end 1 inboard with preceding floor reinforcing plate 12 is here three-layer welding welded fastening because be three-layer welding, and two that generally adopt keep warm the welding and can only be used for the welding between the two-layer board, two-layer welding promptly, and here be preceding panel 3 preceding girder back end 1 inboard with preceding floor reinforcing plate 12 three-layer board welds simultaneously, consequently need adopt the higher spot welding of welding strength, need weld at three-layer and set up on the corresponding position department of welding preceding girder extension 5 first hole 11 of dodging, the electrode that makes the spot welding use can be directly with the welding department contact. The welding mode of spot welding can reduce the risk that the foot space is not enough because the welding spot peels off the floor arch when colliding, reduces the number of manual repair welding of two-layer welding in a workshop and improves the production efficiency.
The utility model discloses a preceding girder strengthens subassembly, please refer to relevant each picture in fig. 1 to 7, can also be on the basis of preceding technical scheme: the outer side of the rear part of the front girder rear section 1 is provided with a beam extension piece 7, the inner side and the outer side of the beam extension piece 7 are respectively fixed with the front girder rear section 1 and the doorsill inner plate 4 in a two-layer manner, and the beam extension piece 7 extends to the doorsill inner plate 4 from the outer side of the joint of the front floor beam 6 and the front girder rear section 1. Therefore, the force transmission channel between the front girder rear section 1 and the threshold inner plate 4 is increased by the cross beam extension piece 7, so that the front girder rear section 1, the threshold connecting plate 2, the threshold inner plate 4 and the cross beam extension piece 7 are surrounded to form a closed force transmission channel, part of the side impact force applied to the automobile can be transmitted to the front girder rear section 1 through the threshold inner plate 4 through the cross beam extension piece 7, then part of the force is directly transmitted to the front floor cross beam 6, the other part of the side impact force is transmitted to the front girder front section and the front girder rear section 1 through the threshold connecting plate 2, the load of the threshold connecting plate 2 in the force transmission process is relieved by the cross beam extension piece 7, and the rigidity of the automobile body is further increased.
The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.
Claims (9)
1. A front girder reinforcing assembly characterized in that: including preceding floor crossbeam, preceding girder back end, threshold connecting plate and preceding girder extension, both ends are fixed with the rear end of preceding girder anterior segment and the front end two-layer formula of middle girder respectively around the preceding girder back end, the threshold connecting plate with two laminar formulas are fixed in respectively to preceding girder extension the inside and outside both sides of preceding girder back end, preceding girder extension by the inboard inwards extension of preceding girder back end is buckled to the front side of preceding floor crossbeam, both ends are fixed with the left and right sides respectively about the preceding floor crossbeam preceding girder back end two-layer formula, the inside and outside both sides of threshold connecting plate respectively with the rear portion outside of preceding girder back end and the anterior inboard two-layer formula of threshold inner panel are fixed.
2. A front rail reinforcement assembly as set forth in claim 1, wherein: the cross section of preceding girder rear section is for "nearly" font structure, the inboard two-layer type of preceding girder rear section is fixed with the preceding girder inner panel that the cross section is "U" font, the lateral wall of preceding girder inner panel left and right sides with the lateral wall of preceding girder rear section left and right sides is two laminar fixed respectively, preceding girder inner panel with preceding girder rear section encloses to establish and forms the cross section and be the confined "mouth" font cavity.
3. A front rail reinforcement assembly as set forth in claim 2, wherein: the bending part of preceding girder back end is provided with preceding girder reinforcing plate, the anterior top surface of preceding girder reinforcing plate with the bottom surface two-layer type of preceding girder inner panel is fixed, the rear portion bottom surface of preceding girder reinforcing plate with the bottom surface two-layer type of preceding girder back end is fixed, preceding girder reinforcing plate by extend to behind the bottom surface slant of preceding girder inner panel the bottom surface of preceding girder back end.
4. A front rail reinforcement assembly as set forth in claim 3, wherein: the front side top surface of the front girder reinforcing plate and the bottom surface of the front girder inner plate are provided with overlapping parts, and the front side top surface of the front girder reinforcing plate and the bottom surface of the front girder inner plate are fixed in a two-layer welding mode at the corresponding positions of the overlapping parts.
5. A front rail reinforcement assembly as set forth in claim 3, wherein: the rear side bottom surface of the front girder reinforcing plate and the bottom surface of the rear section of the front girder are provided with overlapping parts, and the rear side bottom surface of the front girder reinforcing plate and the bottom surface of the rear section of the front girder are fixed in a two-layer welding manner at the corresponding positions of the overlapping parts.
6. A front rail reinforcement assembly as set forth in claim 3, wherein: the cross section of the front girder reinforcing plate is of a U-shaped structure, and the side walls of the left side and the right side of the front girder reinforcing plate and the side walls of the left side and the right side of the rear section of the front girder are respectively fixed in a two-layer mode.
7. A front rail reinforcement assembly according to any one of claims 1-6, wherein: the threshold connecting plate and the front wall plate are enclosed to form a closed cavity structure, and a first avoidance hole is formed in the outer side of the corresponding position where the threshold connecting plate is connected with the rear section of the front girder.
8. A front rail reinforcement assembly according to any one of claims 1-6, wherein: preceding girder extension encloses with preceding bounding wall and establishes and forms confined cavity structures, preceding girder extension with the corresponding position department inboard that preceding girder back end is connected is provided with the second and dodges the hole.
9. A front rail reinforcement assembly according to any one of claims 1-6, wherein: the outer side of the rear part of the rear section of the front girder is provided with a beam extension piece, the inner side and the outer side of the beam extension piece are respectively fixed with the rear section of the front girder and the inner doorsill plate in a two-layer manner, and the outer side of the joint of the front floor beam and the rear section of the front girder extends to the inner doorsill plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021429504.2U CN212950859U (en) | 2020-07-20 | 2020-07-20 | Front girder reinforcing assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021429504.2U CN212950859U (en) | 2020-07-20 | 2020-07-20 | Front girder reinforcing assembly |
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| CN212950859U true CN212950859U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313012A (en) * | 2021-05-21 | 2022-04-12 | 长城汽车股份有限公司 | Vehicle frame and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114313012A (en) * | 2021-05-21 | 2022-04-12 | 长城汽车股份有限公司 | Vehicle frame and vehicle |
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