CN111717286B - Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car - Google Patents
Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car Download PDFInfo
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- CN111717286B CN111717286B CN202010704890.XA CN202010704890A CN111717286B CN 111717286 B CN111717286 B CN 111717286B CN 202010704890 A CN202010704890 A CN 202010704890A CN 111717286 B CN111717286 B CN 111717286B
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- longitudinal beams
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 23
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 210000001015 abdomen Anatomy 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 210000000683 abdominal cavity Anatomy 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/026—Connections by glue bonding
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
本发明公开一种客车多孔横向隧道铝合金腔梁结构车架，包括两根平行设置的纵梁，其特征在于：所述纵梁为多腔铝型材结构，两根所述纵梁之间横向设置有横向隧道腔、剪力墙、横臂，所述横向隧道腔、剪力墙、横臂的两端分别贯穿两根所述纵梁腹部型腔并与之榫卯连接，再通过连接件固定。本发明通过若干个横向隧道腔、若干剪力墙、若干横臂与纵梁构成一个箱式的横向隧道铝合金腔梁车架拓扑结构，车架的受力稳定性好，扭转刚度可达到同级别钢车架的扭转刚度，此外横向隧道腔可用于收纳电池包，有效地提高车架空间利用率。
The present invention discloses a passenger car multi-hole transverse tunnel aluminum alloy cavity beam structure frame, including two parallel longitudinal beams, characterized in that: the longitudinal beam is a multi-cavity aluminum profile structure, and a transverse tunnel cavity, a shear wall, and a cross arm are transversely arranged between the two longitudinal beams, and the two ends of the transverse tunnel cavity, the shear wall, and the cross arm respectively penetrate the abdominal cavity of the two longitudinal beams and are connected with mortise and tenon joints therewith, and then fixed by a connecting piece. The present invention forms a box-type transverse tunnel aluminum alloy cavity beam frame topology structure through a plurality of transverse tunnel cavities, a plurality of shear walls, a plurality of cross arms and longitudinal beams. The frame has good force stability, and the torsional stiffness can reach the torsional stiffness of the same level of steel frame. In addition, the transverse tunnel cavity can be used to store battery packs, effectively improving the space utilization rate of the frame.
Description
Technical Field
The invention relates to the technical field of vehicle body parts, in particular to a frame with a porous transverse tunnel aluminum alloy cavity beam structure for a passenger car.
Background
New energy passenger cars, especially medium and large-sized passenger cars, are more urgent in light weight requirements on the whole cars and larger in weight reduction space because of large self weight, heavy battery and large vehicle load requirements, so that more and more automobile enterprises are sequentially pushing out light-weight new energy passenger car products. The more mature lightweight structural scheme is a steel truss full-load structure, namely, a lightweight space truss type frame is adopted to replace a traditional steel girder type frame, and the frame and a steel body framework form a full-load type vehicle structure after being assembled, so that the whole vehicle is lightweight. On the basis, a lightweight structural scheme of 'upper aluminum and lower steel' is introduced from abroad, namely, the weight of the vehicle body is further reduced by adopting an aluminum alloy framework structure, the frame still adopts a truss type steel structure, and the structural characteristics of the full-load vehicle are still maintained after the assembly. Because the weight of the car body is small in the weight of the whole car, the weight reduction effect of the upper aluminum and the lower steel is not obvious, but the cost is obviously increased, and the new problem that the steel-aluminum structure is easy to generate electrochemical corrosion at the joint is faced. Therefore, the truss type steel structure or the upper aluminum and lower steel mixed structure is not a light-weighted final solution of the new energy commercial vehicle, and cannot be popularized and applied in the passenger car industry.
The full-lightweight vehicle structure with the upper aluminum and the lower aluminum has been applied to passenger cars and accepted in the market, but the full-lightweight passenger car product with the upper aluminum and the lower aluminum is fresh at home and abroad, and the main difficulty is that an aluminum alloy frame meeting the structural characteristics and working condition requirements of the passenger car is not developed. The prior art of the invention discloses an all-aluminum frame, which is formed by connecting two girders with a group of small cross beams by adopting a mortise-tenon structure, so as to form a plurality of quadrilateral truss topological structures, but the frame in the existing topological structure form has the following problems:
1. the torsional rigidity of the existing all-aluminum frame is often insufficient and is only limited to be applied to small commercial vehicles;
2. The space utilization rate of the existing all-aluminum frame is not high, and particularly, the space for storing batteries is not much.
Therefore, if the bus is to realize the full aluminum alloy frame topology structure, the technical problems of the aluminum alloy frame structure in the prior art need to be solved.
Disclosure of Invention
The invention aims to provide a light-weight frame with a three-dimensional cavity Liang Tapu aiming at solving the typical problems of insufficient torsional rigidity and difficult battery space layout of an all-aluminum frame in the prior art.
The technical scheme of the invention is as follows:
the frame comprises two parallel longitudinal beams, wherein the longitudinal beams are of a multi-cavity aluminum profile structure, a top cavity with a flush top plane is arranged at the top of each longitudinal beam, a downward convex cavity is arranged at the lateral outer side of each top cavity, a vertical abdomen cavity is arranged at the lateral inner side of each top cavity downward, and a through tunnel hole, a through beam hole and a cross arm hole are respectively arranged at corresponding positions of the side surfaces of the two longitudinal beams;
A transverse tunnel cavity is transversely arranged between the two longitudinal beams, the cross section of the transverse tunnel cavity is of a hollow thin-wall cavity structure, two ends of the transverse tunnel cavity transversely penetrate through tunnel holes of the two longitudinal beams respectively and are connected with mortise and tenon joints of the tunnel holes, an L-shaped flange plate is arranged between the longitudinal beams and the transverse tunnel cavity, and two sides of the L-shaped flange plate are respectively connected with the outer surface of the transverse tunnel cavity and the side face of an abdomen cavity of the longitudinal beams;
A shear wall is transversely arranged between the two longitudinal beams, the shear wall comprises at least two cross beams which are arranged in parallel from top to bottom, the cross beams transversely penetrate through cross beam holes of the two longitudinal beams and are connected with the cross beams Kong Sunmao, reinforcing rib plates are arranged between the cross beams, and closing-in connecting plates for assembling with side walls are arranged at two ends of the shear wall;
A cross arm is transversely arranged between the two longitudinal beams, two ends of the cross arm respectively penetrate through cross arm holes of the two longitudinal beams and are connected with the cross arm Kong Sunmao, flange seats are arranged at two ends of the cross arm, and the flange seats are fixedly connected with the longitudinal beams.
Preferably, at least one of the corresponding tunnel holes of the two longitudinal beams connected with the transverse tunnel cavity is a blind hole, at least one end of the transverse tunnel cavity is provided with an end cover, the end cover of the transverse tunnel cavity is connected with blind holes on the abdomen cavity of the longitudinal beam through mortise and tenon joints, the end cover of the transverse tunnel cavity is fixedly connected with the inner wall of the abdomen cavity of the longitudinal beam, and the outer surface of the transverse tunnel cavity is connected with the side surface of the longitudinal beam through an L flange plate.
Preferably, the transverse tunnel chamber is a unitary extrusion.
Preferably, the transverse tunnel cavity comprises an upper cavity and a lower cavity, wherein the upper cavity is connected with the lower cavity through welding, or the upper cavity is overlapped with the lower cavity through an H-shaped section bar and is fixed through bonding, welding or riveting.
Preferably, the middle and rear parts of the two longitudinal beams are respectively and correspondingly provided with a reinforcing beam corresponding to the wheel arch position, the reinforcing beams are flatly attached to the top surface along the extending direction of the longitudinal beams, the width of each reinforcing beam is flush with the width of each longitudinal beam, the reinforcing beams are connected with the top surfaces of the longitudinal beams through screw nuts, clamping plates are arranged on the left side and the right side of each reinforcing beam, and the surfaces of the clamping plates are attached to the side surfaces of the reinforcing beams and the side surfaces of the longitudinal beams and fixed through gluing and rivets.
The shear wall comprises a longitudinal beam, a shear wall, a clamping groove structure, a nut, a bolt, a nut and a nut, wherein the longitudinal beam is provided with a plate spring hard point seat, the section of the plate spring hard point seat is of a multi-cavity section structure, at least one cross beam of the shear wall penetrates through the plate spring hard point seat and is connected with a mortise and tenon joint of the plate spring hard point seat, the clamping groove structure is clamped with a concave cavity of the longitudinal beam and is fixedly connected with the concave cavity through the bolt, and the bottom of the plate spring hard point seat is connected with an abdomen cavity of the longitudinal beam through the bolt and the nut.
Preferably, the stringers are integrally extruded or are composite splices formed from at least two sub-stringers.
The invention has the beneficial effects that:
1. The lightweight frame is composed of two longitudinal girders, a plurality of transverse tunnel cavities, a plurality of shear walls and a plurality of cross arms, and the structural components are effectively assembled and connected through mortise and tenon joints, screw joints, adhesion, riveting and the like to form a porous transverse tunnel cavity type aluminum alloy cavity girder frame topological structure;
2. According to the invention, the plurality of holes of the transverse tunnel cavities arranged on the lightweight frame are connected with the longitudinal beam by comprehensively adopting a tenon-and-mortise structure and a flange structure, and can be fixed by adopting a bonding and riveting or external process, so that the longitudinal beam and the transverse tunnel cavities are firmly fixedly connected together;
3. According to the invention, the plurality of cross arms are arranged, the longitudinal beams and the cross arms can be connected by adopting a mortise-tenon structure and a flange structure, and can also be fixed by adopting riveting or external processes, so that the longitudinal beams and the cross arms are firmly fixedly connected together, the integral rigidity of the frame can be further improved, and the hard point of the chassis balance rod is provided;
4. according to the invention, the shear walls are arranged, and the longitudinal beams and the shear walls are connected and fixed by adopting the mortise-tenon structure, so that the transverse rigidity of the frame can be further improved, and effective partition is provided for sections such as a vehicle door, a wheel arch and the like in the longitudinal direction, thereby being beneficial to the sectional sealing of the frame;
5. According to the invention, the transverse tunnel cavities, the shear walls, the cross arms and the plate spring hard point seats can be arranged at different places of the frame according to requirements, and all the components can be combined and matched, so that the adaptability to weak positions is strong, and the overall torsional rigidity of the frame is improved;
6. the lightweight frame has high degree of platformization, can support the configuration of a plate spring suspension system or a pneumatic spring suspension system, can support the arrangement of front, middle and rear passenger doors, can support a two-stage stepping flat floor body, a two-stage and three-stage mixed floor body and a three-stage stepping flat floor body, has compact frame structure and high modularization degree, and is easy to assemble and manufacture.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a frame of a porous transverse tunnel aluminum alloy cavity beam structure of a passenger car;
FIG. 2 is a cross-sectional view of a side rail of the present invention;
FIG. 3 is a side view of the stringers of the present invention;
FIG. 4 is a schematic view of the connection structure of the transverse tunnel cavity, the stiffening beam and the longitudinal beam of the present invention;
FIG. 5 is a schematic view of the connection structure of the L-shaped flange plate, the longitudinal beam and the transverse tunnel cavity of the invention;
FIG. 6 is a schematic view of a shear wall structure according to the present invention.
Fig. 7 is a schematic view showing a structure of a cross member and a side member connection according to embodiment 3 of the present invention.
FIG. 8 is a schematic view of the connection structure of the cross arm and the longitudinal beam of the present invention;
FIG. 9 is a schematic diagram of a connection structure between a lateral tunnel cavity and a longitudinal beam of a blind hole on one side in embodiment 2 of the present invention;
FIG. 10 is a schematic view of a connection structure between a lateral tunnel cavity and a longitudinal beam of a blind hole on two sides of embodiment 2 of the present invention;
FIG. 11 is an enlarged schematic view of a portion of FIG. 4;
fig. 12 is a schematic view showing the structure of a hard spot base of a leaf spring according to embodiment 5;
FIG. 13 is a schematic view of the connection structure of the cross beam, the stiffening beam, the leaf spring hard point seat and the longitudinal beam in the embodiment 6;
fig. 14 is a schematic diagram of the connection of the upper and lower cavities of the transverse tunnel chamber of the present invention and an enlarged view at I.
In the figure, 1-two longitudinal beams, 101-cross beam holes, 102-tunnel holes, 103-cross arm holes, 104-lower convex die cavities, 105-belly die cavities, 110-left longitudinal beams, 120-right longitudinal beams, 2-cross arms, 3-reinforcing beams, 4-transverse tunnel cavities, 401-upper cavities, 402-lower cavities, 5-shear walls, 510-first cross beams, 520-second cross beams, 530-third cross beams, 6-leaf spring hard point seats, 601-hollow structures, 602-clamping groove structures, 7-closing connecting plates, 8-reinforcing rib plates, 9-clamping plates, 10-L-shaped flange plates, 11-flange seats and 12-H-shaped sectional materials.
Detailed Description
For the purpose of making the technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail by way of specific embodiments with reference to the accompanying drawings. In the description of the embodiments, it should be understood that terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the embodiments and simplifying the description, and are not intended to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.
Example 1
As shown in fig. 1, the multi-hole transverse tunnel aluminum alloy cavity beam structure frame of the passenger car according to the specific embodiment of the scheme comprises two longitudinal beams 1, a plurality of hole transverse tunnel cavities 4 arranged between the two longitudinal beams 1, a plurality of shear walls 5 and a plurality of cross arms 10;
The two longitudinal beams 1 are a left longitudinal beam 110 and a right longitudinal beam 120 which are arranged in parallel along the length direction of the vehicle body, the left longitudinal beam 110 and the right longitudinal beam 120 are multi-cavity aluminum profiles, the cross sections of the left longitudinal beam 110 and the right longitudinal beam 120 are multi-cavity structures as shown in reference to fig. 2, top portions of the left longitudinal beam 110 and the right longitudinal beam 120 are provided with top cavities with plane tops, the lateral outer edges of the top cavities are provided with lower protruding cavities 104, the inner edges of the top cavities are provided with vertical abdomen cavities 105 downwards, and the corresponding positions of the lateral surfaces of the left longitudinal beam 110 and the right longitudinal beam 120 are respectively provided with a through tunnel hole 102, a cross beam hole 101 and a cross arm hole 103 as shown in reference to fig. 3. The longitudinal beam adopts an all-aluminum multi-cavity profile structure, plays a role in reducing the overall weight of the frame, the abdomen cavity 105 is beneficial to reducing the weight and improving the maximum height to form a space for the transverse tunnel cavity 4 to pass through, the longitudinal beam 1 maintains enough strength through the design of the lower convex cavity 104, and a clamping position for being assembled with a clamping groove structure 602 of other parts such as a leaf spring hard point seat 6 is formed;
As shown in fig. 4, the transverse tunnel cavity 4 is transversely disposed between the left longitudinal beam 110 and the right longitudinal beam 120, the cross section of the transverse tunnel cavity 4 is a hollow thin-wall cavity with rounded corners and is preferably an aluminum product, two ends of the transverse tunnel cavity 4 transversely penetrate through the tunnel holes 102 of the left longitudinal beam 110 and the right longitudinal beam 120 and are in mortise-tenon connection with the tunnel holes 102, as shown in fig. 5, an L-shaped flange plate 10 is disposed between the longitudinal beam and the transverse tunnel cavity 4, and two sides of the L-shaped flange plate 10 are respectively connected with the outer surface of the transverse tunnel cavity 4 and the side surface of the abdomen cavity 105 of the longitudinal beam. The transverse tunnel cavity 4 is of a thin-wall hollow aluminum structure, the whole weight of the frame is reduced, the section rigidity of the longitudinal beam and the transverse tunnel cavity 4 is high, the improvement of the torsional rigidity, the longitudinal bending rigidity and the transverse bending rigidity of the whole frame is facilitated, the transverse tunnel cavity 4 can be used for accommodating battery packs and improving the space utilization rate through further mutual reinforcement after assembly connection, in principle, the transverse tunnel cavity 4 can be distributed at any position in front, middle and rear of the longitudinal beam according to the requirement and the space condition, and the transverse tunnel cavity 4 for storing batteries is generally arranged between front wheel rims and rear wheel rims;
As shown in fig. 6, the shear wall 5 is transversely arranged between the left longitudinal beam 110 and the right longitudinal beam 120, the shear wall 5 of this embodiment includes a first cross beam 510, a second cross beam 520 and a third cross beam 530 which are arranged in parallel from top to bottom, referring to fig. 7, each cross beam transversely penetrates through a cross beam hole 101 of the left longitudinal beam 110 and the right longitudinal beam 120 and is in mortise-tenon connection with the cross beam hole 101, reinforcing rib plates 8 are arranged between the cross beams, and closing connection plates 7 for assembling with side walls of a vehicle body are arranged at two ends of the shear wall 5. The shear walls 5 are connected with different upper and lower positions of the longitudinal beam through the cross beam, so that the transverse rigidity of the frame is further improved, and effective partition can be provided for sections such as a vehicle door, a wheel arch and the like in the longitudinal direction, so that the frame is beneficial to sectionally sealing;
as shown in fig. 8, the cross arm 2 is transversely disposed between the left longitudinal beam 110 and the right longitudinal beam 120, two ends of the cross arm 2 respectively penetrate through the cross arm holes 103 of the left longitudinal beam 110 and the right longitudinal beam 120 and are in mortise-tenon connection with the cross arm holes 103, flange bases 11 are disposed at two ends of the cross arm 2, and the flange bases 11 are fixed with the left longitudinal beam 110 and the right longitudinal beam 120 through screw connection. The cross arm 2 further improves the overall rigidity of the frame and provides a hard point for part of the chassis, and the cross arm 2 is typically positioned adjacent to the front wheel arch and/or the rear wheel arch.
According to the embodiment, the lightweight frame is composed of two longitudinal beams 1, a plurality of transverse tunnel cavities 4, a plurality of shear walls 5 and a plurality of cross arms 2, the structures are assembled and connected through the mortise and tenon joint to form a box type transverse tunnel aluminum alloy cavity beam frame topological structure, contact areas among the mortise and tenon joint structures are large, stress stability from four sides of the frame is good, the frame is fixed through riveting and the like, torsional rigidity, longitudinal bending rigidity and transverse bending rigidity of the frame are high, particularly the torsional rigidity of a same-level steel frame can be achieved, in addition, the transverse tunnel cavities 4 can be used for accommodating battery packs, compared with a same-level vehicle type, the space utilization rate of the frame is effectively improved, storage capacity of the battery packs is greatly improved, and the continuous voyage mileage of the vehicle is improved.
Example 2
The embodiment provides a frame with a multi-hole transverse tunnel aluminum alloy cavity beam structure for a passenger car, which is different from embodiment 1 in that, as shown in fig. 9, at least one tunnel hole 102 corresponding to two stringers 1 connected with a transverse tunnel cavity 4 is a blind hole, which can adapt to the space requirements of two sides of the frame, the hole depth is approximately the thickness of an abdomen cavity 105, at least one end of the transverse tunnel cavity 4 is provided with an end cover, the end cover of the transverse tunnel cavity is connected with a blind hole mortise on the abdomen cavity 105 of the stringer 1, the end cover of the transverse tunnel cavity 4 is fixedly connected with the inner wall of the abdomen cavity 105 of the stringer 1, and the outer surface of the transverse tunnel cavity 4 is connected with the side surface of the abdomen cavity 105 of the stringer through an L flange plate 10. Similarly, as shown in fig. 10, the transverse tunnel cavity 4 with double blind holes can be also arranged, and the connection mode is similar to that of the transverse tunnel cavity 4 with single blind holes.
Example 3
The present embodiment provides another frame with a porous transverse tunnel aluminum alloy cavity beam structure for a passenger car, which is different from embodiment 1 and embodiment 2 in that, as shown in fig. 7, the uppermost first cross beam penetrates through the top cavities of the left longitudinal beam 110 and the right longitudinal beam 120, so that the transverse contact area between the shear wall 5 and the longitudinal beam is further increased, i.e. the transverse rigidity of the frame is improved.
Example 4
This embodiment still provides a porous horizontal tunnel aluminum alloy cavity roof beam structure frame of passenger train, as shown in fig. 11, corresponds respectively at the great weak position of well rear portion breach of left longeron 110 and right longeron 120 and is provided with stiffening beam 3, stiffening beam 3 is pasted flat along longeron extending direction's top surface, and stiffening beam 3's width flushes with longeron 1's width, and stiffening beam 3 middle part is connected with longeron top surface through screw nut, and stiffening beam 3's left and right sides is provided with splint 9, be provided with the sand grip that matches with multicavity aluminium alloy concave strip on splint 9, splint 9 pass through sand grip joint location on stiffening beam 3 and longeron 1's side to through rivet fastening. By providing the reinforcement beam 3 to compensate for the insufficient strength of the left side member 110 and the right side member 120 at this portion, the longitudinal load performance of the side members can be greatly enhanced.
Example 5
The embodiment further provides a frame of a multi-hole transverse tunnel aluminum alloy cavity beam structure of a passenger car, as shown in fig. 12, on the basis of the embodiment, a plate spring hard point seat 6 is additionally arranged at the joint of the stiffening beam 3 and the longitudinal beam, the section of the plate spring hard point seat 6 is a multi-cavity section bar structure 601, a cross beam penetrating through the shear wall 5 penetrates through the plate spring hard point seat 6 and is connected with a mortise and tenon joint of the plate spring hard point seat 6, a clamping groove structure 602 is arranged above the plate spring hard point seat 6, the clamping groove structure 602 is clamped with a lower bending part 104 of the longitudinal beam and is fixedly connected with a nut through a screw rod penetrating through the clamping groove structure 602 and the lower bending part 104, and the bottom of the plate spring hard point seat 6 is connected with an abdomen cavity 105 of the longitudinal beam through the screw rod and the nut. The plate spring hard point seat 6 improves the integrity of hard points and longitudinal beams, and meanwhile, the stress of the plate spring hard point seat 6 can be uniformly and dispersedly transmitted to the left longitudinal beam 110 and the right longitudinal beam 120, so that a concentrated force transmission path is avoided, the capability of bearing the load of a large hard point of a chassis hard point is improved, in addition, the section of the plate spring hard point seat 6 is a large hollow section, and the weight of a frame can be effectively reduced while the strength requirement is met.
Example 6
On the basis of combining the embodiment 4 and the embodiment 5, as shown in fig. 13, a first cross beam 510 of the shear wall 5, which is located near the stiffening beam 3 and the hard point seat 6 of the leaf spring, passes through the clamping plates 9 on the side edge of the stiffening beam 3 to be joggled with the clamping plates 9, a second cross beam 520 of the shear wall 5 passes through the hard point seat 6 of the leaf spring and is connected with the mortise and tenon joint of the hard point seat of the leaf spring, and a third cross beam 530 of the shear wall 5 passes through the two longitudinal beams 1 and is connected with the mortise and tenon joint of the two longitudinal beams. The stiffening beam 3, the plate spring hard point seat 6 and the two longitudinal beams 1 are connected together through the three cross beams of the shear wall 5, so that the overall rigidity of the frame is further enhanced.
Furthermore, in some embodiments, the transverse tunnel cavity 4 is an integral extrusion, or as shown in fig. 14, the transverse tunnel cavity 4 includes an upper cavity 401 and a lower cavity 402, the upper cavity 401 and the lower cavity 402 are connected by welding, or the upper cavity 401 and the lower cavity 402 are overlapped by the H-shaped section bar 12 and fixed by bonding or welding or riveting.
In the embodiment, the cross arm 2, the shear wall 5, the transverse tunnel cavity 4, the spring hard point seat 6 and the stiffening beam 3 can be reasonably arranged at different positions according to different requirements, so that the whole operation is convenient, the strength of the weak part of the longitudinal beam is enhanced by changing the positions of the components as required, and the whole rigidity of the frame is further enhanced.
The combination connection mode of the components in the above embodiments can also adopt bonding, welding, riveting, screwing and other modes besides the described connection mode.
In addition to the above embodiments, in some embodiments, routing holes are provided at intervals on the side of the stringer belly cavity 105 to facilitate routing of electrical components of the vehicle body.
In addition to the above embodiments, in some embodiments, the stringers are integrally extruded members, and may be composite splice members formed by at least two sub-stringers similar to the splicing manner of the reinforcement beam 3 and the stringers.
In addition to the above embodiments, the stringers may be straight or curved in plan view, depending on the mounting requirements of the chassis.
While the invention has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (5)
1. The multi-hole transverse tunnel aluminum alloy cavity beam structure frame of the passenger car comprises two parallel longitudinal beams and is characterized in that the longitudinal beams are of multi-cavity aluminum profile structures, a top cavity with a flush top plane is arranged at the top of each longitudinal beam, a lower convex cavity is arranged downwards at the transverse outer side of each top cavity, a vertical belly cavity is arranged downwards at the transverse inner side of each top cavity, and a through tunnel hole, a through beam hole and a through arm hole are respectively arranged at corresponding positions of the side surfaces of the two longitudinal beams;
A transverse tunnel cavity is transversely arranged between the two longitudinal beams, the cross section of the transverse tunnel cavity is of a hollow thin-wall cavity structure, two ends of the transverse tunnel cavity transversely penetrate through tunnel holes of the two longitudinal beams respectively and are connected with mortise and tenon joints of the tunnel holes, an L-shaped flange plate is arranged between the longitudinal beams and the transverse tunnel cavity, and two sides of the L-shaped flange plate are respectively connected with the outer surface of the transverse tunnel cavity and the side face of an abdomen cavity of the longitudinal beams;
A shear wall is transversely arranged between the two longitudinal beams, the shear wall comprises at least two cross beams which are arranged in parallel from top to bottom, the cross beams transversely penetrate through cross beam holes of the two longitudinal beams and are connected with the cross beams Kong Sunmao, reinforcing rib plates are arranged between the cross beams, and closing-in connecting plates for assembling with side walls are arranged at two ends of the shear wall;
A transverse arm is transversely arranged between the two longitudinal beams, two ends of the transverse arm respectively penetrate through transverse arm holes of the two longitudinal beams and are connected with the transverse arm Kong Sunmao, flange bases are arranged at two ends of the transverse arm and are fixedly connected with the longitudinal beams, at least one of corresponding tunnel holes of the two longitudinal beams connected with the transverse tunnel cavity is a blind hole, at least one end of the transverse tunnel cavity is provided with an end cover, the end of the transverse tunnel cavity with the end cover is connected with blind holes in the abdomen cavity of the longitudinal beam in a mortise-tenon mode, the end cover of the transverse tunnel cavity is fixedly connected with the inner wall of the abdomen cavity of the longitudinal beam, and the outer surface of the transverse tunnel cavity is connected with the side surface of the longitudinal beam through an L flange plate;
The transverse tunnel cavity comprises an upper cavity and a lower cavity, wherein the upper cavity is connected with the lower cavity through welding, or the upper cavity is overlapped with the lower cavity through an H-shaped section bar and is fixed through bonding or welding or riveting.
2. The porous transverse tunnel aluminum alloy cavity beam structure frame for a passenger car according to claim 1, wherein the transverse tunnel cavity is an integral extrusion molding piece.
3. The frame of the aluminum alloy cavity beam structure of the porous transverse tunnel of the passenger car, which is characterized in that the middle and rear parts of the two longitudinal beams are respectively and correspondingly provided with a reinforcing beam corresponding to the wheel arch positions, the reinforcing beams are flatly attached to the top surface along the extending direction of the longitudinal beams, the width of the reinforcing beams is flush with the width of the longitudinal beams, the reinforcing beams are connected with the top surfaces of the longitudinal beams through screw nuts, clamping plates are arranged on the left side and the right side of the reinforcing beams, and the surfaces of the clamping plates are attached to the side surfaces of the reinforcing beams and the side surfaces of the longitudinal beams and fixed through gluing and rivets.
4. The frame of the multi-hole transverse tunnel aluminum alloy cavity beam structure of the passenger car is characterized in that a plate spring hard point seat is assembled on a longitudinal beam, the section of the plate spring hard point seat is of a multi-cavity section bar structure, at least one cross beam of the shear wall penetrates through the plate spring hard point seat and is connected with a mortise and tenon joint of the plate spring hard point seat, a clamping groove structure is arranged above the plate spring hard point seat, the clamping groove structure is clamped with a concave cavity of the longitudinal beam and penetrates through the clamping groove structure through a screw rod to be connected and fixed with a nut, and the bottom of the plate spring hard point seat is connected with an abdomen cavity of the longitudinal beam through the screw rod and the nut.
5. The frame of a multi-hole transverse tunnel aluminum alloy cavity beam structure of a passenger car according to claim 1, wherein the longitudinal beams are integrally extruded members or composite splice members formed by at least two sub-longitudinal beams.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704890.XA CN111717286B (en) | 2020-07-21 | 2020-07-21 | Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car |
| PCT/CN2021/111636 WO2022017540A1 (en) | 2020-07-21 | 2021-08-10 | Primary beam and transverse tunnel cavity and cross beam connection by means of mortise and tenon joint structure for passenger-carrying aluminum alloy vehicle frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010704890.XA CN111717286B (en) | 2020-07-21 | 2020-07-21 | Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car |
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| CN111717286A CN111717286A (en) | 2020-09-29 |
| CN111717286B true CN111717286B (en) | 2024-11-29 |
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| CN111717286B (en) * | 2020-07-21 | 2024-11-29 | 南宁华数轻量化电动汽车设计院有限公司 | Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car |
| CN113306628A (en) * | 2021-05-18 | 2021-08-27 | 华中科技大学 | Aluminum alloy frame combined longitudinal beam |
| CN113212553B (en) * | 2021-05-18 | 2024-09-17 | 华中科技大学 | A combined longitudinal beam type integrated aluminum alloy frame |
| CN113492915B (en) * | 2021-05-18 | 2024-09-06 | 华中科技大学 | All-aluminum alloy mortise-tenon hard spot assembly of trolley frame |
| CN114633803B (en) * | 2022-04-21 | 2022-12-23 | 东风商用车有限公司 | Integrally cast balance suspension beam based on material topology and manufacturing method thereof |
| CN115295944B (en) * | 2022-08-15 | 2023-06-27 | 浙江米皇新材股份有限公司 | Full tenon and glue joint new energy automobile battery tray battery pack lower box |
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| CN212354153U (en) * | 2020-07-21 | 2021-01-15 | 南宁华数轻量化电动汽车设计院有限公司 | Multi-hole transverse tunnel aluminum alloy cavity beam structure frame of passenger car |
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| JP2008126847A (en) * | 2006-11-21 | 2008-06-05 | Honda Motor Co Ltd | Cooling structure of fuel cell electric vehicle |
| KR101220768B1 (en) * | 2010-12-28 | 2013-01-21 | 주식회사 포스코 | Undercar for electric vehicles |
| CN104494701B (en) * | 2014-12-31 | 2017-09-26 | 东莞中山大学研究院 | An Integral Stressed Passenger Car Chassis Basic Structure |
| CN104859717B (en) * | 2015-04-13 | 2017-07-11 | 中航爱维客汽车有限公司 | Electric light bus body frame structure for automotive and electric light bus |
| CN107010115A (en) * | 2017-05-25 | 2017-08-04 | 天津恒天新能源汽车研究院有限公司 | A kind of truss structure transition beam |
| DE102017007490A1 (en) * | 2017-08-09 | 2019-02-14 | Daimler Ag | Holding arrangement of batteries on a frame for a commercial vehicle |
| DE102018205765A1 (en) * | 2018-04-17 | 2019-10-17 | Volkswagen Aktiengesellschaft | Mounting arrangement of an electrically driven motor vehicle |
| CN109050666A (en) * | 2018-08-27 | 2018-12-21 | 武汉智能控制工业技术研究院有限公司 | A kind of longitudinal beam structure, body frame structure for automotive and multilayer longitudinal beam structure |
| CN108860317A (en) * | 2018-08-27 | 2018-11-23 | 武汉智能控制工业技术研究院有限公司 | One kind " two vertical four is horizontal " aluminium alloy bicycle frame structure and automobile |
| CN111717286B (en) * | 2020-07-21 | 2024-11-29 | 南宁华数轻量化电动汽车设计院有限公司 | Frame of aluminum alloy cavity beam structure of porous transverse tunnel of passenger car |
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