CN111717286A - Multi-hole transverse tunnel aluminum alloy cavity beam structure frame of passenger car - Google Patents
Multi-hole transverse tunnel aluminum alloy cavity beam structure frame of passenger car Download PDFInfo
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- CN111717286A CN111717286A CN202010704890.XA CN202010704890A CN111717286A CN 111717286 A CN111717286 A CN 111717286A CN 202010704890 A CN202010704890 A CN 202010704890A CN 111717286 A CN111717286 A CN 111717286A
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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
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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
- B62D27/026—Connections by glue bonding
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Abstract
The invention discloses a porous transverse tunnel aluminum alloy cavity beam structure frame of a passenger car, which comprises two longitudinal beams arranged in parallel and is characterized in that: the longitudinal beams are of multi-cavity aluminum profile structures, transverse tunnel cavities, shear walls and transverse arms are transversely arranged between the two longitudinal beams, two ends of each transverse tunnel cavity, each shear wall and each transverse arm penetrate through the corresponding longitudinal beam abdomen cavity and are in mortise-tenon connection with the corresponding longitudinal beam abdomen cavity, and the two ends of each transverse tunnel cavity, each shear wall and each transverse arm are fixed through connecting pieces. According to the invention, a box-type transverse tunnel aluminum alloy cavity beam frame topological structure is formed by the plurality of transverse tunnel cavities, the plurality of shear walls, the plurality of cross arms and the longitudinal beam, the stress stability of the frame is good, the torsional rigidity can reach that of a steel frame of the same grade, and in addition, the transverse tunnel cavities can be used for accommodating battery packs, so that the space utilization rate of the frame is effectively improved.
Description
Technical Field
The invention relates to the technical field of vehicle body parts, in particular to a vehicle frame with a porous transverse tunnel aluminum alloy cavity beam structure for a passenger vehicle.
Background
New energy passenger cars, especially medium and large-sized passenger cars, have more urgent requirements on light weight of whole cars and larger weight reduction space due to heavy dead weight, heavy batteries and large vehicle load requirements, so that more and more automobile enterprises successively put forward light-weight new energy passenger car products. A relatively mature lightweight structural scheme is a steel truss full-bearing structure, namely a lightweight space truss type frame is adopted to replace a traditional steel girder type frame, and a full-bearing vehicle structure is formed after the frame and a steel vehicle body framework are assembled, so that the lightweight of the whole vehicle is realized. However, due to the limitation of steel materials and the limitation of height and size of the vehicle frame, the weight reduction effect is limited; on this basis, a lightweight structural scheme of 'steel under aluminium' is introduced from abroad, namely the automobile body of the automobile adopts an aluminum alloy framework structure to further reduce the weight, the frame still adopts a truss type steel structure, and the structural characteristics of the full-load automobile are still kept after assembly. Because the proportion of the weight of the vehicle body in the weight of the whole vehicle is not large, the lightweight effect of the upper aluminum lower steel is not obvious, but the cost is obviously increased, and meanwhile, the novel 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 an ultimate solution for light weight of the new energy commercial vehicle, and cannot be popularized and applied in the passenger car industry.
The full-light-weight vehicle structure of aluminum-on-aluminum-off has been applied to passenger vehicles and is accepted in the market, but the aluminum alloy frame meeting the structural characteristics and working condition requirements of the passenger vehicle is not developed in the light-weight passenger vehicle products of the full-aluminum alloy of aluminum-on-aluminum-off at home and abroad. The invention discloses an all-aluminum frame in the prior art, wherein two girders are connected with a group of small crossbeams by adopting a mortise-tenon joint structure 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 large.
Therefore, in order to realize the topological structure of the all-aluminum alloy frame of the passenger car, the technical problem of the aluminum alloy frame structure in the prior art needs to be solved urgently.
Disclosure of Invention
Aiming at the existing defects, the invention aims to provide a light frame with a three-dimensional cavity beam topology, and aims to mainly solve the typical problems that an all-aluminum frame in the prior art is insufficient in torsional rigidity and difficult in spatial layout of batteries.
The technical scheme of the invention is as follows:
a multi-hole transverse tunnel aluminum alloy cavity beam structure frame of a passenger car comprises two longitudinal beams which are arranged in parallel, wherein each longitudinal beam is 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 lower convex cavity is arranged downwards on the transverse outer side of each top cavity, a vertical abdomen cavity is arranged downwards on the transverse inner side of each top cavity, and a tunnel hole, a cross beam hole and a cross arm hole which penetrate through the side faces of the two longitudinal beams are respectively arranged at corresponding positions 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 in mortise and tenon connection with 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 connected with the outer surface of the transverse tunnel cavity and the side surface of the abdominal cavity of the longitudinal beam respectively;
a shear wall is transversely arranged between the two longitudinal beams and 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 in mortise and tenon connection with the cross beam holes, reinforcing rib plates are arranged between the cross beams, and closing-up connecting plates for being assembled with side walls are arranged at two ends of the shear wall;
and a cross arm is transversely arranged between the two longitudinal beams, two ends of the cross arm respectively penetrate through the transverse arm holes of the two longitudinal beams and are in mortise and tenon connection with the transverse arm holes, 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 of the transverse tunnel cavity with the end cover is in mortise and tenon joint with the blind hole in the longitudinal beam abdomen cavity, the end cover of the transverse tunnel cavity is fixedly connected with the inner wall of the longitudinal beam abdomen cavity, and the outer surface of the transverse tunnel cavity is connected with the side face of the longitudinal beam through an L-shaped flange plate.
Preferably, the transverse tunnel cavity is a one-piece extrusion.
Preferably, the transverse tunnel cavity comprises an upper cavity and a lower cavity, the upper cavity and the lower cavity are connected through welding, or the upper cavity and the lower cavity are overlapped through an H-shaped section bar and are fixed through bonding, welding or riveting.
Preferably, the middle rear parts of the two longitudinal beams are respectively and correspondingly provided with a reinforcing beam corresponding to the wheel arch positions, the top surfaces of the reinforcing beams along the extension direction of the longitudinal beams are flat, 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 and screw rods, the left side and the right side of each reinforcing beam are provided with clamping plates, 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 are fixed through gluing and rivets.
Preferably, a leaf spring hard point seat is assembled on the longitudinal beam, the section of the leaf spring hard point seat is of a multi-cavity profile structure, and at least one cross beam of the shear wall penetrates through the leaf spring hard point seat and is in mortise-tenon connection with the leaf spring hard point seat; a clamping groove structure is arranged above the hard point seat of the plate spring, and the clamping groove structure is clamped with the lower concave cavity of the longitudinal beam and is connected and fixed with the nut through a screw rod penetrating through the clamping groove structure and the lower concave cavity; the bottom of the plate spring hard point seat is connected with an abdomen cavity of the longitudinal beam through a screw and a nut.
Preferably, the stringer is an integral extrusion or a composite splice formed by at least two sub-stringers.
The invention has the beneficial effects that:
1. the light-weight frame is composed of two longitudinal girders, a plurality of transverse tunnel cavities, a plurality of shear walls and a plurality of cross arms, the structural components are effectively assembled and connected through mortise and tenon, screw connection, bonding, riveting and the like to form a porous transverse tunnel cavity type aluminum alloy cavity beam frame topological structure, the structural stability is good, the torsional rigidity, the longitudinal bending rigidity and the transverse bending rigidity of the frame are high, and particularly the torsional rigidity can reach the torsional rigidity of a steel frame at the same level;
2. the plurality of hole transverse tunnel cavities arranged on the lightweight frame are connected with the longitudinal beam by a tenon-and-mortise structure and a flange structure, can be fixed by adopting a bonding and riveting process or an external process, and firmly and fixedly connect the longitudinal beam and the transverse tunnel cavities together;
3. the chassis balancing pole is provided with the plurality of cross arms, the longitudinal beams and the cross arms can be connected by adopting a mortise and tenon structure and a flange structure, and can also be fixed by adopting riveting or external processes and the like, and the longitudinal beams and the cross arms are firmly and fixedly connected together, so that the integral rigidity of the chassis can be further improved, and the hard points of the chassis balancing pole are provided;
4. the plurality of shear walls are arranged, and the longitudinal beams and the shear walls are connected and fixed by adopting a tenon-and-mortise structure, so that the transverse rigidity of the frame can be further improved, effective partitions are provided for sections such as vehicle doors, wheel trims and the like in the longitudinal direction, and the sectional sealing of the frame is facilitated;
5. according to the invention, the plurality of transverse tunnel cavities, the plurality of shear walls, the plurality of cross arms and the plate spring hard point seats can be arranged at different places of the frame according to requirements, and all parts can be combined and matched, so that the adaptability to weak positions is strong, and the integral torsional rigidity of the frame is improved;
6. the lightweight frame has high platformization degree, can support and configure a plate spring suspension system or a gas spring suspension system, can support the arrangement of front, middle and rear passenger doors, and can support a second-level stepping flat floor vehicle body, a second-level and third-level mixed floor vehicle body and a third-level stepping flat floor vehicle body; the frame has compact structure, high modularization degree and easy assembly and manufacture.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a frame of an aluminum alloy cavity beam structure of a porous transverse tunnel of a passenger car;
FIG. 2 is a cross-sectional view of a stringer of the present invention;
FIG. 3 is a side view of the stringer of the present invention;
FIG. 4 is a schematic view of a connecting structure of a transverse tunnel cavity, a reinforcing beam and a longitudinal beam of the invention;
FIG. 5 is a schematic view of a connecting structure of the L-shaped flange plate with the longitudinal beam and the transverse tunnel cavity;
FIG. 6 is a schematic view of a shear wall structure according to the present invention.
Fig. 7 is a schematic view of a cross beam and longitudinal beam connection structure according to embodiment 3 of the present invention.
FIG. 8 is a schematic view of a cross arm and longitudinal beam connection structure of the present invention;
FIG. 9 is a schematic view of a connecting structure of a lateral tunnel cavity with a blind hole on one side and a longitudinal beam in embodiment 2 of the present invention;
FIG. 10 is a schematic view of a connecting structure of a lateral tunnel cavity with blind holes on both sides and a longitudinal beam in embodiment 2 of the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 4 at A;
FIG. 12 is a schematic structural view of a hard point seat of the leaf spring of the embodiment 5;
FIG. 13 is a schematic view of the connection structure of the cross beam, the stiffening beam, the leaf spring hard spot seats and the longitudinal beam in the embodiment 6;
FIG. 14 is a schematic view of the connection between the upper cavity and the lower cavity of the transverse tunnel cavity according to the present invention and an enlarged view at the position I.
In the figure, 1-two longitudinal beams; 101-beam hole; 102-a tunnel bore; 103-transverse arm hole; 104-lower convex cavity, 105-belly cavity; 110-left stringer; 120-right stringer; 2-a cross arm; 3-a reinforcing beam; 4-transverse tunnel cavity; 401-upper cavity; 402-a lower cavity; 5-a shear wall; 510-a first beam; 520-a second beam; 530-a third beam; 6-hard point seat of plate spring; 601-hollow structure; 602-a card slot configuration; 7-closing up the connecting plate; 8-reinforcing plate; 9-clamping plate; a 10-L shaped flange plate; 11-a flange seat; 12-H shaped section bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by embodiments with reference to the accompanying drawings. In the description of the embodiments, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the embodiments and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation and thus should not be construed as limiting the present invention.
Example 1
As shown in FIG. 1, the aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car according to the embodiment of the scheme comprises: the device 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 transverse 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 a vehicle body, the left longitudinal beam 110 and the right longitudinal beam 120 are multi-cavity aluminum profiles, the sections of the left longitudinal beam 110 and the right longitudinal beam 120 are of a multi-cavity structure, a top cavity with a plane top is arranged at the top of the left longitudinal beam 110 and the right longitudinal beam 120, a lower convex cavity 104 is arranged at the transverse outer edge of the top cavity, a vertical abdomen cavity 105 is arranged at the inner edge of the top cavity downwards, and a tunnel hole 102, a cross beam hole 101 and a cross arm hole 103 which penetrate through the left longitudinal beam 110 and the right longitudinal beam 120 are respectively arranged at corresponding positions. The longitudinal beam adopts an all-aluminum multi-cavity section structure, so that the whole frame is lightened, the abdominal cavity 105 is favorable for lightening and simultaneously improves the maximum height to form a space for the transverse tunnel cavity 4 to pass through, the longitudinal beam 1 retains enough strength through the design of the lower convex cavity 104, and a clamping position for assembling with other parts such as a clamping groove structure 602 of the plate spring hard point seat 6 is also formed;
as shown in fig. 4, the transverse tunnel cavity 4 is transversely arranged 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-walled cavity structure with rounded rectangle, preferably made of aluminum, two ends of the transverse tunnel cavity transversely penetrate through the tunnel holes 102 of the left longitudinal beam 110 and the right longitudinal beam 120 respectively and are in mortise-tenon connection with the tunnel holes 102, as shown in fig. 5, an L-shaped flange plate 10 is arranged between the longitudinal beam and the transverse tunnel cavity 4, and two sides of the L-shaped flange plate 10 are connected with the outer surface of the transverse tunnel cavity 4 and the side surface of the abdomen cavity 105 of the longitudinal beam respectively. 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 whole torsional rigidity, the longitudinal bending rigidity and the transverse bending rigidity of the frame is facilitated, the transverse tunnel cavity 4 can be used for accommodating a battery pack through further mutual reinforcement after assembly and connection, and the space utilization rate is improved; in principle, the transverse tunnel chambers 4 can be distributed at any position in front, in the middle and behind the longitudinal beams according to requirements and spatial conditions, while the transverse tunnel chambers 4 for storing batteries are usually arranged between the front and rear wheel arches;
as shown in fig. 6, the shear wall 5 is transversely disposed 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 disposed in parallel from top to bottom, referring to fig. 7, each cross beam transversely penetrates through the cross beam holes 101 of the left longitudinal beam 110 and the right longitudinal beam 120 and is in mortise-tenon connection with the cross beam holes 101, a reinforcing rib plate 8 is disposed between the cross beams, and closing-up connecting plates 7 for assembling with the body side walls are disposed at two ends of the shear wall 5. The shear wall 5 is 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, effective partitions can be provided for sections such as a vehicle door and a wheel arch in the longitudinal direction, and the sectional sealing of the frame is facilitated; the frame is provided with a plurality of shear walls 5 for improving the bending resistance and the torsion resistance of the whole frame, and the shear walls 5 are usually distributed at the wheel arch and the two side structures of the vehicle door;
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, two ends of the cross arm 2 are provided with flange seats 11, and the flange seats 11 are fixed to the left longitudinal beam 110 and the right longitudinal beam 120 by bolts. The cross arm 2 further improves the overall rigidity of the frame and also provides hard points of part of the chassis; the cross arm 2 is typically disposed near a forward wheel arch and/or a rearward wheel arch.
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 transverse arms 2, the structures are assembled and connected through mortise and tenon joints to form a box-type transverse tunnel aluminum alloy cavity beam frame topological structure, the contact area between the mortise and tenon joints is large, the stress stability from four sides of the frame is good, then the frame is fixed through riveting and other modes, the torsional rigidity, the longitudinal bending rigidity and the transverse bending rigidity of the frame are high, and particularly the torsional rigidity can reach the torsional rigidity of a steel frame at the same level; in addition, the transverse tunnel cavity 4 can be used for accommodating a battery pack, compared with the same-grade vehicle type, the space utilization rate of the vehicle frame is effectively improved, the storage capacity of the battery pack is greatly expanded, and the continuation of journey mileage of the vehicle is increased; finally, compared with the traditional light aluminum vehicle body underframe, the light aluminum vehicle body underframe has higher overall torsional rigidity and lighter weight and is easier to manufacture; therefore, the frame can meet the requirement of realizing all-aluminum alloying of the passenger car, has light overall weight and quite high strength and rigidity, can form double functions of bearing and reducing weight, and achieves the aim of the invention.
Example 2
The embodiment provides a frame with a porous transverse tunnel aluminum alloy cavity beam structure for a passenger car, and the difference between the embodiment and embodiment 1 is that, as shown in fig. 9, at least one of tunnel holes 102 corresponding to two longitudinal beams 1 connected to 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 of which is approximately the thickness of an abdominal cavity 105, at least one end of the transverse tunnel cavity 4 is provided with an end cover, the end cover-carrying end of the transverse tunnel cavity is in mortise-tenon connection with the blind hole on the abdominal cavity 105 of the longitudinal beam 1, the end cover of the transverse tunnel cavity 4 is fixedly connected with the inner wall of the abdominal cavity 105 of the longitudinal beam 1, and the outer surface of the transverse tunnel cavity 4 is connected with the side surface. Similarly, as shown in fig. 10, a double blind hole transverse tunnel cavity 4 can be provided, and the connection mode is similar to that of the single-side blind hole transverse tunnel cavity 4.
Example 3
The present embodiment provides another vehicle frame with a porous transverse tunnel aluminum alloy cavity beam structure for a passenger vehicle, and is different from embodiments 1 and 2 in that, as shown in fig. 7, the uppermost first cross beam penetrates through 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 beams is further increased, that is, the transverse rigidity of the vehicle frame is improved.
Example 4
In this embodiment, as shown in fig. 11, reinforcing beams 3 are respectively and correspondingly arranged at weak positions of the left longitudinal beam 110 and the right longitudinal beam 120, where the gaps at the middle and rear portions of the reinforcing beams are large, top surfaces of the reinforcing beams 3 in the longitudinal beam extending direction are flat, widths of the reinforcing beams 3 are flush with widths of the longitudinal beams 1, the middle portions of the reinforcing beams 3 are connected with the top surfaces of the longitudinal beams through screw nuts and screw bolts, clamping plates 9 are arranged on the left and right sides of the reinforcing beams 3, protruding strips matched with concave strips of the multi-cavity aluminum profile are arranged on the clamping plates 9, and the clamping plates 9 are clamped and positioned on the side surfaces of the reinforcing beams 3 and the longitudinal beams 1 through the protruding strips and are fixed through rivets. The reinforcing beam 3 is used for making up the strength insufficiency of the left longitudinal beam 110 and the right longitudinal beam 120 at the position, and the longitudinal load performance of the longitudinal beams can be greatly enhanced.
Example 5
In this embodiment, as shown in fig. 12, on the basis of the above embodiment, a leaf spring hard point seat 6 is additionally arranged at a joint of a stiffening beam 3 and a longitudinal beam, a section of the leaf spring hard point seat 6 is a multi-cavity profile structure 601, and a cross beam passing through the shear wall 5 passes through the leaf spring hard point seat 6 and is in mortise-and-tenon connection with the same; a clamping groove structure 602 is arranged above the plate spring hard point seat 6, the clamping groove structure 602 is clamped with the lower bending part 104 of the longitudinal beam, and the clamping groove structure 602 and the lower bending part 104 are fixedly connected with a nut through a screw rod in a penetrating mode; the bottom of the plate spring hard point seat 6 is connected with an abdomen cavity 105 of the longitudinal beam through a screw and a nut. When the integrity of the hard points and the longitudinal beams of the plate spring hard point seat 6 is improved, the stress of the plate spring hard point seat 6 can be uniformly dispersed and transmitted to the left longitudinal beam 110 and the right longitudinal beam 120, so that a centralized force transmission path is avoided, and the load capacity of the chassis hard points for bearing large hard point is improved; in addition, the section of the leaf spring hard point seat 6 is a large hollow section, so that the strength requirement is met, and the weight of the frame can be effectively reduced.
Example 6
With reference to embodiments 4 and 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 leaf spring hard point seat 6, penetrates through the clamping plate 9 and the clamping plate 9 on the side of the stiffening beam 3 to be mortise-jointed, a second cross beam 520 of the shear wall 5 penetrates through the leaf spring hard point seat 6 to be mortise-jointed, and a third cross beam 530 of the shear wall 5 penetrates through the two longitudinal beams 1 to be mortise-jointed. The reinforcing 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, and the overall rigidity of the frame is further enhanced.
Furthermore, in some embodiments, the transverse tunnel cavity 4 is a unitary extrusion, or as shown in fig. 14, the transverse tunnel cavity 4 comprises 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 profile 12 and fixed by bonding or welding or riveting.
The cross arm 2, the shear wall 5, the transverse tunnel cavity 4, the spring hard point seat 6 and the reinforcing beam 3 in the embodiment can also be reasonably arranged at different positions according to different requirements, the whole operation is convenient, the positions of the components are changed as required, the strength of the weak part of the longitudinal beam is favorably enhanced, and the integral rigidity of the frame is further enhanced.
The combined connection mode of the components between the above embodiments can adopt bonding, welding, riveting, screwing or other modes besides the described connection mode.
In addition to the above embodiments, in some embodiments, the longitudinal beam abdomen cavity 105 is provided with wiring holes at intervals on the side surface, which can facilitate wiring of the electric devices on the vehicle body.
In addition to the above embodiments, in some embodiments, the longitudinal beam is an integral extrusion molding, and may also be a composite splice formed by at least two sub-longitudinal beams similar to the manner in which the reinforcing beam 3 is spliced with the longitudinal beam.
In addition to the above embodiments, the side members may be straight or curved in plan view, depending on the installation requirements of the chassis member.
Although the invention has been described in detail above with reference to specific embodiments, it will be apparent to one skilled in the art that modifications or improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a porous transverse tunnel aluminum alloy chamber roof beam structure frame of passenger train, includes two parallel arrangement's longerons, its characterized in that: 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 lower convex cavity is arranged downwards on the transverse outer side of the top cavity, a vertical abdomen cavity is arranged downwards on the transverse inner side of the top cavity, and a tunnel hole, a cross beam hole and a cross arm hole which penetrate through the longitudinal beams are respectively arranged at corresponding positions on 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 in mortise and tenon connection with 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 connected with the outer surface of the transverse tunnel cavity and the side surface of the abdominal cavity of the longitudinal beam respectively;
a shear wall is transversely arranged between the two longitudinal beams and 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 in mortise and tenon connection with the cross beam holes, reinforcing rib plates are arranged between the cross beams, and closing-up connecting plates for being assembled with side walls are arranged at two ends of the shear wall;
and a cross arm is transversely arranged between the two longitudinal beams, two ends of the cross arm respectively penetrate through the transverse arm holes of the two longitudinal beams and are in mortise and tenon connection with the transverse arm holes, flange seats are arranged at two ends of the cross arm, and the flange seats are fixedly connected with the longitudinal beams.
2. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, wherein: two of being connected with horizontal tunnel chamber at least one of the tunnel hole that corresponds of longeron is the blind hole, and at least one end in horizontal tunnel chamber is provided with the end cover, and horizontal tunnel chamber area end cover end is connected with the blind hole mortise-tenon joint on the longeron belly die cavity, and the end cover in horizontal tunnel chamber and longeron belly die cavity inner wall fixed connection, the surface in horizontal tunnel chamber passes through the L flange board and is connected with the side of longeron.
3. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, wherein: the transverse tunnel cavity is an integral extrusion.
4. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, wherein: the transverse tunnel cavity comprises an upper cavity body and a lower cavity body, the upper cavity body is connected with the lower cavity body in a welding mode, or the upper cavity body is in lap joint with the lower cavity body through an H-shaped section bar and is fixed through bonding, welding or riveting.
5. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, wherein: the middle rear parts of the two longitudinal beams are correspondingly provided with stiffening beams corresponding to wheel brows respectively, the top surfaces of the stiffening beams in the extension direction of the longitudinal beams are flat, the width of the stiffening beams is flush with that of the longitudinal beams, the stiffening beams are connected with the top surfaces of the longitudinal beams through screw nuts and screw rods, clamping plates are arranged on the left side and the right side of the stiffening beams, the surfaces of the clamping plates are attached to the side surfaces of the stiffening beams and the side surfaces of the longitudinal beams, and the clamping plates are fixed through gluing and.
6. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, 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 profile structure, and at least one cross beam of the shear wall penetrates through the plate spring hard point seat and is in mortise-tenon connection with the plate spring hard point seat; a clamping groove structure is arranged above the hard point seat of the plate spring, and the clamping groove structure is clamped with the lower concave cavity of the longitudinal beam and is connected and fixed with the nut through a screw rod penetrating through the clamping groove structure and the lower concave cavity; the bottom of the plate spring hard point seat is connected with an abdomen cavity of the longitudinal beam through a screw and a nut.
7. The aluminum alloy cavity beam structure frame for the porous transverse tunnel of the passenger car as claimed in claim 1, wherein: the longitudinal beam is an integral extrusion molding piece or a composite splicing piece formed by at least two sub-longitudinal beams.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704890.XA CN111717286A (en) | 2020-07-21 | 2020-07-21 | Multi-hole transverse tunnel aluminum alloy cavity beam structure frame 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704890.XA CN111717286A (en) | 2020-07-21 | 2020-07-21 | Multi-hole transverse tunnel aluminum alloy cavity beam structure frame of passenger car |
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| CN111717286A true CN111717286A (en) | 2020-09-29 |
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| CN202010704890.XA Pending CN111717286A (en) | 2020-07-21 | 2020-07-21 | Multi-hole transverse tunnel aluminum alloy cavity beam structure frame of passenger car |
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| CN (1) | CN111717286A (en) |
| WO (1) | WO2022017540A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022017540A1 (en) * | 2020-07-21 | 2022-01-27 | 南宁华数轻量化电动汽车设计院有限公司 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Uuder Body for Electric Vehicle |
| 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 |
| 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 |
| CN111717286A (en) * | 2020-07-21 | 2020-09-29 | 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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2020
- 2020-07-21 CN CN202010704890.XA patent/CN111717286A/en active Pending
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- 2021-08-10 WO PCT/CN2021/111636 patent/WO2022017540A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022017540A1 (en) * | 2020-07-21 | 2022-01-27 | 南宁华数轻量化电动汽车设计院有限公司 | 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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| Publication number | Publication date |
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| WO2022017540A1 (en) | 2022-01-27 |
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