CN115503823B - A frame structure suitable for transport vehicles - Google Patents
A frame structure suitable for transport vehicles Download PDFInfo
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- CN115503823B CN115503823B CN202211107820.1A CN202211107820A CN115503823B CN 115503823 B CN115503823 B CN 115503823B CN 202211107820 A CN202211107820 A CN 202211107820A CN 115503823 B CN115503823 B CN 115503823B
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- 238000003466 welding Methods 0.000 claims abstract description 16
- 239000000725 suspension Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 22
- 230000003014 reinforcing effect Effects 0.000 description 54
- 230000005540 biological transmission Effects 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process 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
- 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
- B62D21/03—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members transverse members providing body support
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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
- B62D21/09—Means for mounting load bearing surfaces
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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
The invention discloses a frame structure suitable for a transport vehicle, which comprises a longitudinal beam, a front beam and a tail beam, wherein the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam which are oppositely arranged, a plurality of groups of transverse beam welds are arranged between the left longitudinal beam and the right longitudinal beam, supporting legs are arranged on the outer sides of the left longitudinal beam and the right longitudinal beam, supporting beams are arranged between the left longitudinal beam and the right longitudinal beam and correspond to the supporting legs, shaft sleeves are arranged at welding ends of the transverse beams, an upper lug of a hydro-pneumatic spring can be installed, an installation seat is not required to be arranged for the upper lug of the hydro-pneumatic spring alone, the installation space is saved, a steering vertical shaft and the supporting legs are welded and fixed together, the installation space of a traditional steering swing arm support is saved, an inverted U-shaped groove is arranged in the supporting beams, the stiffening beams at the inverted U-shaped groove can be detached, the driving shafts are convenient to maintain, the portions of the frame structure are reasonable in arrangement, the space utilization is sufficient, the bearing capacity is strong, and good performance of the transport vehicle can be ensured.
Description
[ Field of technology ]
The invention relates to the technical field of automobile manufacturing, in particular to a frame structure suitable for a transport vehicle.
[ Background Art ]
The frame structure is an important component of the chassis of the vehicle, is an integrated platform of the vehicle, and provides interfaces of machine, electricity, gas and the like for various related systems of the special vehicle. Besides bearing the large load in the use process of the chassis, the frame also bears various dynamic loads and various additional loads generated in the running process of the vehicle, and the structural design of the frame has important influence on the reliability and safety of the whole chassis structure.
The transportation vehicle has higher requirements on the frame, high bearing capacity and good stability and trafficability, while the traditional transportation vehicle generally adopts the traditional Z type, C type and C typeThe whole frame is formed by inserting the integral cross beams among the longitudinal beams in the structural form of the cross beams in the shape of the Chinese character 'ji', and the whole frame is formed by riveting, screwing or welding, so that firm support is provided for good running performance of the whole vehicle. However, the cross section of the cross beam in the traditional frame structure is large, so that the internal space is relatively narrow, and the installation occupation space of a transmission shaft, a steering swing arm support, a suspension upper lug support and the like required by the transport vehicle is large, so that the maintainability is poor.
[ Invention ]
Aiming at the defects of the prior art, the invention aims to provide a frame structure suitable for a transport vehicle, which has high bearing capacity, stability and trafficability, and solves the problems of the traditional frame that the installation of a transmission shaft, a steering swing arm support, a suspension upper lug support and the like, which are caused by limited space, occupy space, are difficult to disassemble and assemble and have poor maintainability.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The frame structure suitable for the transportation vehicle comprises a longitudinal beam, a front beam connected to the front end of the longitudinal beam and a tail beam connected to the rear end of the longitudinal beam, wherein the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam which are oppositely arranged, a plurality of groups of beam welds are arranged between the left longitudinal beam and the right longitudinal beam, each beam weld comprises a cover plate, a bottom plate and a beam vertical plate connected between the cover plate and the bottom plate, a connecting plate is respectively connected to the left lower part and the right lower part of each beam vertical plate, the connecting plates are of an inverted L-shaped structure and are respectively connected with the left longitudinal beam and the right longitudinal beam, each beam vertical plate comprises two beam vertical plates I and a beam vertical plate II which are sequentially arranged, and the left end and the right end of each beam vertical plate I are respectively provided with a shaft sleeve and are used for being connected with a suspension upper support lug.
The beam vertical plate I and the beam vertical plate II are respectively arranged on the left side and the right side of the beam vertical plate I and the beam vertical plate II, a reinforcing plate I perpendicular to the beam vertical plate I is arranged between the beam vertical plate I and the beam vertical plate II, a reinforcing plate II perpendicular to the beam vertical plate II is arranged between the beam vertical plate I and the beam vertical plate II, and the left end and the right end of one side opposite to the beam vertical plate I are respectively connected with the reinforcing plate III.
Preferably, the left end and the right end of the beam vertical plate II and the beam vertical plate III are respectively arranged in an inclined mode, and the end portions of the beam vertical plate II and the beam vertical plate III are connected with a suspension limit seat fixing plate, so that the bearing capacity of the beam vertical plate is guaranteed, and the effect of suspension upper jump limit is achieved.
Preferably, the left longitudinal beam and the right longitudinal beam adopt Z-shaped structures.
Preferably, the number of the welded cross beams is equal to that of the axles, and the welded cross beams are respectively arranged above the axles.
The right side of the suspension limiting seat fixing plate extends to be flush with the end of the vertical support plate, and the right end of the beam cover plate also extends to the tops of the vertical support plate and the suspension limiting seat fixing plate, so that an installation platform is provided for rear suspension of a cab.
Preferably, in order to strengthen the strength of the left and right longitudinal beams at the bridge, a longitudinal beam reinforcing support is respectively arranged at the left and right longitudinal beams at the upper part of the bridge, the L-shaped reinforcing connection plate comprises an L-shaped reinforcing connection plate fixedly connected with the bent parts at the upper parts of the left and right longitudinal beams and reinforcing rib plates arranged on the side surfaces of the L-shaped reinforcing connection plate, the L-shaped reinforcing connection plate comprises a vertical part and a horizontal part, the vertical part is fixedly connected with the left and right longitudinal beams respectively, and the horizontal part is fixedly connected with the connecting plate in welding of the cross beam.
Preferably, the outer sides of the left longitudinal beam and the right longitudinal beam are respectively provided with supporting legs perpendicular to the left longitudinal beam and the right longitudinal beam, each supporting leg comprises a first supporting leg arranged between a first bridge and a second supporting leg arranged between a fourth bridge and a tail beam, each of the first supporting leg and the second supporting leg comprises a supporting leg cover plate, a supporting leg bottom plate and a supporting leg vertical plate connected between the supporting leg cover plate and the supporting leg bottom plate, and one ends, far away from the left longitudinal beam and the right longitudinal beam, of each of the first supporting leg and the second supporting leg are connected with a jack connecting seat.
Preferably, one side, close to the jack connecting seat, of the inner sides of the supporting leg vertical plates in the first supporting leg and the second supporting leg is vertically provided with a supporting leg reinforcing plate I respectively, a supporting leg reinforcing rib is further horizontally arranged between the two supporting leg vertical plates, and the two ends of the supporting leg reinforcing rib are fixedly connected with the supporting leg vertical plates respectively in an elliptical ring structure.
Preferably, a steering vertical shaft is arranged on one side of the first supporting leg far away from the jack connecting seat, and the steering vertical shaft penetrates through the supporting leg bottom plate and the supporting leg cover plate from bottom to top and is welded and fixed with the supporting leg bottom plate and the supporting leg cover plate respectively.
Preferably, the top of the supporting leg cover plate and the bottom of the supporting seat bottom plate are respectively and fixedly provided with a steering reinforcing plate corresponding to the position of the steering vertical shaft, and the first supporting leg and the periphery of the steering vertical shaft are provided with a sleeve.
Preferably, one side, close to the sleeve, of the inner sides of the two support leg vertical plates is further provided with a support leg reinforcing plate II, and one side, close to the steering reinforcing plate, of the top of the support leg cover plate in the first support leg is connected with a loading reinforcing plate through a loading connecting plate.
Preferably, a support beam is further arranged between the left longitudinal beam and the right longitudinal beam at a position corresponding to the support leg, and the support beam comprises a first support beam positioned at the first support leg position and a second support beam positioned at the second support leg position.
Preferably, the first support beam comprises a support beam cover plate horizontally arranged and a support beam vertical plate vertically connected below the support beam cover plate, the support beam vertical plate is provided with three support beams in parallel, and the lower end of the support beam vertical plate is provided with an inverted U-shaped groove for providing a movement space for the transmission shaft.
Preferably, an inverted U-shaped sealing plate is arranged at the inverted U-shaped groove of the three support beam vertical plates to seal the inverted U-shaped groove, so that the strength is improved.
Preferably, a stiffening beam is connected to the below of the inverted U-shaped sealing plate, and two ends of the stiffening beam are connected with the inverted U-shaped sealing plate through bolts respectively, so that the stiffening beam can be detached, and the driving shaft can be maintained and disassembled conveniently.
Preferably, disassembly interfaces are arranged on the left longitudinal beam and the right longitudinal beam corresponding to the stiffening beams, so that the stiffening beams can be disassembled conveniently.
Preferably, a sealing plate is respectively arranged between every two adjacent support beam vertical plates and at two sides of the inverted U-shaped groove and used for connecting the two adjacent support beam vertical plates to play a role in reinforcement.
Preferably, the frame structure is made of high-strength steel plates.
The invention has the beneficial effects that:
according to the welding arrangement of the cross beam in the frame structure, the left and right ends of the cross beam vertical plates I and II are provided with the shaft sleeves for installing the upper lugs of the hydro-pneumatic spring while the connection strength of the left and right longitudinal beams is ensured, independent installation seats are not required to be provided for the upper lugs of the hydro-pneumatic spring independently, and the installation space is saved;
The end part of the middle beam welding middle beam vertical plate III in the frame structure is provided with the suspension limit seat fixing plate for installing the suspension limit seat, so that the suspension is jumped up to have a limit effect, the installation space of a longitudinal beam is not required to be occupied, the installation procedure is reduced, and the installation cost is saved;
The supporting legs in the frame structure can be connected with the jack, the bearing is not less than 25 tons, the installation and working requirements of the loading equipment can be met, and the stability of parking work is ensured; the steering vertical shaft is welded and fixed with the supporting leg, and the steering swing arm support is not required to be installed for fixing, so that the installation space of the steering swing arm support is saved, the installation procedure is reduced, and the installation time and the cost are saved; the sleeve in the supporting leg improves the installation accuracy of the steering vertical shaft and enhances the installation strength;
The supporting beam arranged in the frame structure provides a movement space for the transmission shaft on the premise of ensuring the use strength of the supporting legs, and the supporting beam is arranged at the inverted U-shaped groove to strengthen the strength of the supporting beam, so that the difficulty in disassembly and assembly of the transmission shaft and the difficulty in maintainability are overcome;
In the frame structure, the left longitudinal beam and the right longitudinal beam adopt Z-shaped structures, the flanges of the lower wing plates of the longitudinal beams are inward, the flanges of the upper wing plates are outward, and the installation space in the frame is increased;
the frame structure has high bearing capacity, ensures good cross-country performance and passing performance of the transport vehicle, and has wide application range.
[ Description of the drawings ]
FIG. 1 is a schematic view of a frame structure according to the present invention;
FIG. 2 is a schematic illustration of the structure of the beam weld in the frame structure of the present invention;
FIG. 3 is a schematic illustration of the cross member welded cover plate removed from the frame structure of the present invention;
FIG. 4 is an enlarged schematic view of portion B of FIG. 1;
FIG. 5 is a schematic view of the mated structure of the support beam, support leg, and left and right stringers in the frame structure of the present invention;
FIG. 6 is a schematic view of the structure of the support leg of the frame structure of the present invention;
FIG. 7 is a schematic view of the structure of the frame structure of the present invention with the leg removed from the leg riser;
FIG. 8 is a schematic view of a support beam in a frame structure according to the present invention;
FIG. 9 is a schematic view of a frame structure of the present invention with a support beam removed from a support beam riser;
FIG. 10 is a schematic diagram of portion A of FIG. 1;
Wherein, 1-longitudinal beam; 101-reinforcing the support by the longitudinal beam; 1011-L type connection reinforcing plate; 1012-reinforcing rib plates; 2-front beams; 201-front cross beam; 202-front side beams; 2021-front Liang Waili panel; 2022-front Liang Nali panel; 2023-front roof rail upper cover; 2024-front floor; 203-connecting lugs; 204-cab flip connection structure; 3-tail boom; 4-welding the cross beam; 401-a beam cover plate; 402-a beam floor; 403-connecting plates; 404-beam riser I; 405-a beam vertical plate II; 406-beam riser III; 407-reinforcing plate I; 408-reinforcing plate II; 409-reinforcing plate III; 410-a suspension limit seat fixing plate; 411-sleeve; 412-a support plate; 5-a first support leg; 501-supporting leg cover plates; 502-supporting leg bottom plate; 503-supporting leg vertical plates; 504-jack connection base; 505-steering vertical shaft; 506-steering reinforcement plate; 507-sleeve; 508-support leg stiffener I; 509-support leg stiffener; 510-supporting leg reinforcing plate II; 511-mounting a connecting plate; 512-upper reinforcing plate; 6-a second support leg; 7-a first support beam; 701-supporting beam cover plate I; 702-supporting beam risers; 703-inverted U-shaped sealing plates; 704-sealing plates; 705-reinforcing beams; 706-supporting beam cover plate II; 8-a second support beam; 9-steering reinforcement beam I; 10-steering reinforcement beam II; 11-supporting the stiffening beam; 12-steering reinforcement beam III.
[ Detailed description ] of the invention
The invention is illustrated by the following specific examples, but is in no way limited thereto, in order to make the objects, technical solutions and advantages of the invention more apparent. The following description of the preferred embodiments of the invention is merely illustrative of the invention and should not be taken as limiting the invention, it being understood that any modifications, equivalents, and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.
The invention provides a frame structure suitable for a transport vehicle, which is shown in fig. 1, and comprises a longitudinal beam 1, a front beam 2 connected to the front end of the longitudinal beam 1 and a tail beam 3 connected to the rear end of the longitudinal beam 1, wherein the longitudinal beam 1 adopts a Z-shaped structure, the bottom of the longitudinal beam is turned inwards, the top of the longitudinal beam is turned outwards, the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam which are oppositely arranged, and a plurality of groups of beam welds 4 are arranged between the left longitudinal beam and the right longitudinal beam;
As shown in fig. 2 and 3, the beam welding comprises a beam cover plate 401, a beam bottom plate 402 and a beam vertical plate connected between the beam cover plate 401 and the beam bottom plate 402, the beam vertical plate comprises two beam vertical plates I404 and a beam vertical plate II405 which are arranged in parallel, the beam vertical plate I404 and the beam vertical plate II405 respectively comprise a middle part positioned between a left longitudinal beam and a right longitudinal beam and an extension part connected above the left part and above the right part, the middle part and the extension part are integrally formed, a connecting plate 403 is respectively connected to the left lower part and the right lower part of the beam vertical plate, the connecting plate 403 is in an inverted-L structure, the vertical part and the left side and the right side of the middle part of the beam vertical plate are fixedly connected, the horizontal part is fixedly connected to the bottom of the extension part, the beam welding is connected with the left longitudinal beam and the right longitudinal beam through a connecting plate 403 by bolts, the vertical part of the connecting plate 403 is positioned at the inner sides of the left longitudinal beam and the right longitudinal beam, and the horizontal part is positioned at the top of the left longitudinal beam and the right longitudinal beam, namely, one part of the beam welding 4 is positioned at the top of the left longitudinal beam and the right longitudinal beam, and the inner space of the frame is reduced.
The extension of crossbeam riser I404 is longer than the extension of crossbeam riser II405, just the one end that middle part was kept away from to crossbeam riser I404 extension is provided with the round hole, the axial of round hole is the same with the length direction of controlling the longeron, sets up a axle sleeve in each round hole and is used for connecting the last journal stirrup of hydro-pneumatic spring, the last journal stirrup of hydro-pneumatic spring passes through the round pin hub connection between the axle sleeve of two crossbeam risers I404.
Preferably, a beam vertical plate III406 is further disposed between the extending portions on two sides of the beam vertical plate I and the beam vertical plate II, the structure of the beam vertical plate III406 is identical to that of the extending portion of the beam vertical plate II, one ends of the beam vertical plate II and the beam vertical plate III, which are far away from the middle portion, are all inclined, and an included angle between the end portions of the beam vertical plate I and the extending portion of the beam vertical plate II is 30-40 degrees, so that the beam vertical plate I and the extending portion of the beam vertical plate II are used for installing a suspension limiting seat, the longitudinal beam installation space is not required to be occupied, and the suspension upper jump limiting function is achieved while the bearing capacity of the beam vertical plate is guaranteed.
Preferably, in order to improve the strength of the beam welding 4, four reinforcing plates I407 perpendicular to the beam welding are arranged between the two beam vertical plates I404, the reinforcing plates I407 are respectively arranged between two ends of the middle part of the beam vertical plates I and the extending parts of the two beam vertical plates I404, two sides of the reinforcing plates I are respectively welded and fixed with the side surfaces of the two beam vertical plates I404, two reinforcing plates II408 perpendicular to the middle part between the beam vertical plates I404 and the beam vertical plates II405 are respectively arranged on two sides of the middle part between the beam vertical plates I404 and the beam vertical plates II405, two sides of the reinforcing plates II408 are respectively welded and fixed with the side surfaces of the beam vertical plates I and the beam vertical plates II, and the side surfaces of the reinforcing plates II408 are connected with one side, close to the middle part, of the beam vertical plates III 406.
Preferably, the extending parts on the opposite sides of the two beam vertical plates I are respectively fixedly connected with a reinforcing plate III409, and the structure of the reinforcing plate III409 is the same as that of the extending part of the beam vertical plate I403, and is connected in a bonding mode, so that the strength is improved, and the deformation in the use process is prevented.
Preferably, the middle of the beam cover plate 401 is concave inwards, the whole body is arched, enough space is reserved for upper equipment installation, and through holes are formed in the beam vertical plates, so that the radiating pipes and the high-low voltage wires can pass through in a distributed manner.
Preferably, the number of the beam welds 4 is equal to the number of the axles, and the beam welds are respectively arranged above the axles, and in this embodiment, four groups of beam welds are respectively used as main beams of one to four axles. As shown in fig. 1, the beam welds above the first bridge and the second bridge are opposite to the beam welds above the third bridge and the fourth bridge.
Preferably, a support plate 412 is also fixedly arranged on the side of the beam vertical plate II405 welded by the beams at the two bridges, and is used for supporting the output transmission shaft of the gearbox.
As shown in fig. 4, two ends of the right side length direction of a beam welding middle beam vertical plate II405 at a bridge are respectively and fixedly provided with a vertical support plate 413, the bottom of the vertical support plate 413 is respectively and fixedly connected with the outer edges of the left and right longitudinal beams, the right side of the suspension limiting seat fixing plate extends to be flush with the end of the vertical support plate, the right end of the beam cover plate also extends to the tops of the vertical support plate and the suspension limiting seat fixing plate, and an installation platform is provided for suspension behind a cab.
Preferably, in order to strengthen the strength of the left and right stringers at a bridge, a stringer reinforcing support 101 is respectively disposed at the left and right stringers above a bridge, and the reinforcing support comprises an L-shaped reinforcing connection plate 1011 and a reinforcing rib plate 1012, wherein the L-shaped reinforcing connection plate is fixedly connected with the bent parts above the left and right stringers, the reinforcing rib plate 1012 is disposed on the side surface of the L-shaped reinforcing connection plate, the L-shaped reinforcing connection plate comprises a vertical part and a horizontal part, the vertical part is fixedly connected with the left and right stringers, and the horizontal part is fixedly connected with a connection plate 403 in welding with a beam.
As shown in fig. 1, support legs are further arranged on the outer sides of the left longitudinal beam and the right longitudinal beam, and each support leg comprises a first support leg 5 positioned between the first bridge and the second bridge and a second support leg 6 positioned between the fourth bridge and the tail beam;
as shown in fig. 6 and 7, the first supporting leg 5 and the second supporting leg 6 each include a supporting leg cover plate 501, a supporting leg bottom plate 502, and a supporting leg vertical plate 503 connected between the supporting leg cover plate 501 and the supporting leg bottom plate 502, where the supporting leg vertical plate 503 includes a front vertical plate, a rear vertical plate, and a side vertical plate far from one end of the longitudinal beam, the supporting leg cover plate 501, the supporting leg bottom plate 502, and the supporting leg vertical plate 503 are connected to form a box structure, one ends of the first supporting leg and the second supporting leg far from the left and right longitudinal beams are connected to a jack connecting seat 504, one sides of the inner sides of the front and rear vertical plates near the jack connecting seat are respectively vertically provided with a supporting leg reinforcing plate I508, a supporting leg reinforcing rib 509 is also horizontally arranged between the front and rear vertical plates, two ends of the supporting leg reinforcing rib 509 are respectively fixedly connected with the front and rear vertical plates, and the front and rear vertical plates are respectively provided with lightening holes communicated with the supporting leg reinforcing rib 509 in an elliptical ring shape.
In order to improve the installation strength of the steering vertical shaft 505, a steering reinforcing plate 506 is fixedly arranged at the top of the supporting seat cover plate 501 and the bottom of the supporting seat bottom plate 502 corresponding to the position of the steering vertical shaft 505 respectively, and a sleeve 507 is arranged in the first supporting leg and at the periphery of the steering vertical shaft 505 and is welded and fixed with the steering vertical shaft;
Preferably, one end of the supporting leg cover plate 501, which is close to the steering vertical shaft 505, is provided with a downward bending, one side, which is close to the steering vertical shaft, of the inner sides of the front and rear upright plates is further provided with a supporting leg reinforcing plate II510, the top of the supporting leg reinforcing plate II is welded and fixed with the supporting leg cover plate, the two sides of the supporting leg cover plate are respectively welded and fixed with the front and rear upright plates for reinforcing the bending position of the supporting leg cover plate, and the top of the bending position of the supporting leg cover plate 501 in the first supporting leg is connected with a loading reinforcing plate 512 through a loading connecting plate 511 for installing loading equipment and providing support for the loading equipment.
As shown in figure 1, the position between the left longitudinal beam and the right longitudinal beam, which corresponds to the supporting leg, is also provided with supporting beams which are respectively aligned with the sections of the supporting legs at the corresponding positions, and the supporting beams comprise a first supporting beam 7 positioned at the position of the first supporting leg 5 and a second supporting beam 8 positioned at the position of the second supporting leg 6.
As shown in fig. 8, the first support beam 7 includes a support beam cover plate I701 and a support beam vertical plate 702 vertically connected below the support beam cover plate I701, the support beam vertical plate 702 is provided with three support beam cover plates I701 and support beam vertical plates 702 in parallel, two ends of the support beam vertical plate 702 are welded and fixed with left and right longitudinal beams respectively, an inverted U-shaped groove recessed upwards is provided at the lower end of the support beam vertical plate 702 to provide a movement space for the transmission shaft, an inverted U-shaped sealing plate 703 is provided at the inverted U-shaped groove of the three support beam vertical plates to seal the space between the three support beam vertical plates, and strength is increased.
As shown in fig. 9, a sealing plate 704 is respectively disposed between each two adjacent support beam risers 702 and on the left and right sides of the inverted U-shaped groove, and is used for connecting the two adjacent support beam risers 702, so as to improve the strength of the support leg support beam 7.
The lower part of the inverted U-shaped sealing plate 703 is connected with a reinforcing beam 705, two ends of the reinforcing beam 705 are respectively connected with the inverted U-shaped sealing plate 703 through bolts, and as shown in fig. 5, the disassembly interfaces 101 are reserved at corresponding positions on the left longitudinal beam and the right longitudinal beam, so that the reinforcing beam 705 is convenient to disassemble and assemble, and the transmission shaft is convenient to maintain and disassemble.
The reinforcing beam 705 includes a middle bending plate 7051 and connection reinforcing plates 7052 connected to the left and right ends of the bending plate 7051, threaded holes are formed in the end faces of the connection reinforcing plates 7052, through holes matched with the threaded holes in the connection reinforcing plates 7052 are formed in the left and right ends of the bottom of the inverted U-shaped sealing plate 703, and the through holes are connected through bolts.
Preferably, a rib plate (not shown) is further disposed below the bending plate 7051, and the length direction of the rib plate is parallel to the length direction of the vertical support beam vertical plate 702 and is parallel to the middle support beam vertical plate, so as to provide a reinforcing effect for the bending plate.
Preferably, the middle of the supporting beam cover plate I701 is horizontal, two ends of the supporting beam cover plate I extend upwards respectively, two ends of the supporting beam cover plate I are fixedly connected with a supporting beam cover plate II706 which is horizontally arranged respectively, the supporting beam cover plate II706 is flush with one end of the supporting leg, which is close to the longitudinal beam, when the supporting leg lifts, the supporting legs on two sides are reinforced, and the supporting beam cover plate II706 and the supporting beam cover plate I701 are designed separately, so that the stress is better.
The second support beam 8 is a box structure composed of a cover plate, a bottom plate and a vertical plate, the left and right ends of the second support beam are respectively connected with the left and right longitudinal beams through bolts, and the specific structure of the second support beam is not described herein.
As shown in fig. 10, the bottom surface of the front beam 2 in this embodiment is inclined at an angle of 18.5 ° and is the same as the approach angle of the whole vehicle, and includes a front cross member 201 and front side members 202 connected to the left and right side members, wherein the front cross member 201 is fixedly connected to the front end of the front side member 202, each front side member 202 includes a front Liang Waili panel 2021, a front Liang Nali panel 2022, and a front upper cover panel 2023 and a front bottom panel 2024 respectively positioned at the top and bottom of the front outer vertical panel 2021 and the front Liang Nali panel 2022, two ends of the top of the front cross member 201 are respectively provided with a connection lug 203 as a front support of the cab, the side surfaces of the front Liang Waili panel 2021 are provided with a cab-turnover connection structure 204, and the tops of the two front upper cover panels 2023 are used for mounting an engine cooling system, and the front beam 2 may also adopt a structure in the prior art (such as the front beam structure disclosed in patent CN113879400 a).
The tail boom 3 includes the relative tail boom upper cover plate that sets up of level, tail boom bottom plate, connects the tail boom riser between tail boom upper cover plate and tail boom bottom plate and is located the tail boom connecting plate that both ends are connected with left and right sides longeron respectively, box structure is constituteed to tail boom upper cover plate, tail boom bottom plate and tail boom riser, still is provided with the through-hole that supplies the circuit to pass through on the tail boom riser, the tail boom can adopt the structure commonly used among the prior art, and its specific structure is not repeated here.
The frame structure further comprises a steering stiffening beam I9, a steering stiffening beam II10 and a steering stiffening beam III12 which are arranged between the left longitudinal beam and the right longitudinal beam, the steering stiffening beam I9, the steering stiffening beam II and the steering stiffening beam III12 are box structures which are formed by a top plate, a bottom plate, front and rear vertical plates and connecting plates connected with the left longitudinal beam and the right longitudinal beam, the structure of the frame structure can be a box structure beam commonly used in the prior art (such as a steering stiffening beam welding I and a steering stiffening beam welding II disclosed in a patent CN 113879400A), the section shape is adjusted and determined according to the space of a transmission shaft, and the specific structure of the frame structure is not repeated here.
The frame structure further comprises a supporting and reinforcing beam 11 arranged between the left longitudinal beam and the right longitudinal beam, and the frame structure is a box structure formed by a top plate, a bottom plate, front and rear vertical plates and connecting plates connected with the left longitudinal beam and the right longitudinal beam, and is arranged between the two bridges and the three bridges to provide supporting and reinforcing functions.
Preferably, the frame structure in this embodiment is made of a high-strength steel plate BS700MCK2, has a yield strength of 680Mpa, a tensile strength of 750Mpa, a longitudinal beam section height of 730mm, and a length of about 1295mm.
The foregoing examples have been presented only to illustrate certain embodiments of the invention and are described in more detail and not to be construed as limiting the invention. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the present section. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (7)
1. The frame structure suitable for the transportation vehicle is characterized by comprising a longitudinal beam, a front beam connected to the front end of the longitudinal beam and a tail beam connected to the rear end of the longitudinal beam, wherein the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam which are oppositely arranged, and a plurality of groups of beam welds are arranged between the left longitudinal beam and the right longitudinal beam;
The left and right sides of the space between the beam vertical plate I and the beam vertical plate II are respectively provided with a beam vertical plate III;
The number of the welded cross beams is equal to that of the axles, and the welded cross beams are respectively arranged above the axles;
The right side of the suspension limiting seat fixing plate extends to be flush with the end part of the vertical support plate, and the right end of the beam cover plate also extends to the tops of the vertical support plate and the suspension limiting seat fixing plate;
The beam welding comprises a beam cover plate, a beam bottom plate and a beam vertical plate connected between the beam cover plate and the beam bottom, wherein the beam vertical plate comprises two beam vertical plates I and one beam vertical plate II which are arranged in parallel, each beam vertical plate I and each beam vertical plate II comprises a middle part positioned between a left longitudinal beam and a right longitudinal beam and an extension part connected above the left part and the right part of the middle part, the middle part and the extension parts are integrally formed;
The extension part of the beam vertical plate I is longer than the extension part of the beam vertical plate II, one end of the beam vertical plate I, which is far away from the middle part, is provided with a round hole, the axial direction of the round hole is the same as the length direction of the left and right longitudinal beams, a shaft sleeve is arranged in each round hole and is used for connecting with an upper lug of the hydro-pneumatic spring, and the upper lug of the hydro-pneumatic spring is connected between the shaft sleeves of the two beam vertical plates I through a pin shaft.
2. The frame structure for a transportation vehicle according to claim 1, wherein the outer sides of the left longitudinal beam and the right longitudinal beam are further provided with supporting legs perpendicular to the left longitudinal beam and the right longitudinal beam respectively, the supporting legs comprise a first supporting leg arranged between a bridge and a second supporting leg arranged between a four-bridge and a tail beam, the first supporting leg and the second supporting leg comprise supporting leg cover plates, supporting leg bottom plates and supporting leg vertical plates connected between the supporting leg cover plates and the supporting leg bottom plates, and one ends of the first supporting leg and the second supporting leg far away from the left longitudinal beam and the right longitudinal beam are connected with a jack connecting seat.
3. The frame structure for a transportation vehicle according to claim 2, wherein a steering vertical shaft is provided on a side of the first support leg away from the jack connection seat, and the steering vertical shaft passes through the support leg bottom plate and the support leg cover plate from bottom to top and is welded and fixed with the support leg bottom plate and the support leg cover plate, respectively.
4. The frame structure for a transportation vehicle according to claim 3, wherein a steering reinforcement plate is fixedly disposed at a position corresponding to the steering vertical shaft at the top of the supporting leg cover plate of the first supporting leg and the bottom of the supporting seat bottom plate, and a sleeve is disposed in the first supporting leg and around the steering vertical shaft.
5. The frame structure suitable for the transportation vehicle according to claim 2, wherein a support beam is further arranged between the left longitudinal beam and the right longitudinal beam at a position corresponding to the support leg, the support beam comprises a first support beam positioned at a first support leg position and a second support beam positioned at a second support leg position, the first support beam comprises a support beam cover plate and support beam vertical plates vertically connected below the support beam cover plate, three support beam vertical plates are arranged in parallel, inverted U-shaped grooves are formed in the lower ends of the support beam vertical plates, and an inverted U-shaped sealing plate is arranged at the inverted U-shaped grooves of the three support beam vertical plates.
6. The frame structure of claim 5, wherein a stiffening beam is connected below the inverted "U" shaped sealing plate, and two ends of the stiffening beam are respectively connected with the inverted "U" shaped sealing plate through bolts.
7. The frame structure for a transportation vehicle according to claim 6, wherein a sealing plate is provided between each adjacent two of the support beam risers on both left and right sides of the inverted "U" shaped recess, respectively, for connecting the adjacent two support beam risers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107820.1A CN115503823B (en) | 2022-09-09 | 2022-09-09 | A frame structure suitable for transport vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107820.1A CN115503823B (en) | 2022-09-09 | 2022-09-09 | A frame structure suitable for transport vehicles |
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| Publication Number | Publication Date |
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| CN115503823A CN115503823A (en) | 2022-12-23 |
| CN115503823B true CN115503823B (en) | 2024-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211107820.1A Active CN115503823B (en) | 2022-09-09 | 2022-09-09 | A frame structure suitable for transport vehicles |
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| CN (1) | CN115503823B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116513313A (en) * | 2023-04-24 | 2023-08-01 | 泰安航天特种车有限公司 | A variable cross-section, modular frame front beam structure and a frame of a super-heavy vehicle |
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| CN108706048A (en) * | 2018-06-13 | 2018-10-26 | 山东浩信浩德精密机械有限公司 | Truck frame and its bearing beam |
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| CN202863554U (en) * | 2012-10-23 | 2013-04-10 | 山东临沃重机有限公司 | Car frame |
| CN203974951U (en) * | 2014-03-20 | 2014-12-03 | 重庆长安跨越车辆有限公司 | A kind of Non-carrying type car chassis with independent suspension |
| CN204296862U (en) * | 2014-09-15 | 2015-04-29 | 乔治费歇尔汽车产品(昆山)有限公司 | Truck crossbeam and truck |
| JP6482245B2 (en) * | 2014-11-11 | 2019-03-13 | 日野自動車株式会社 | Vehicle frame structure |
| CN204701660U (en) * | 2015-05-05 | 2015-10-14 | 东风商用车有限公司 | Tractor lightweight frame |
| CN205801241U (en) * | 2016-05-25 | 2016-12-14 | 湘电重型装备有限公司 | A kind of electric-wheel dump truck frame |
| CN206813099U (en) * | 2017-03-21 | 2017-12-29 | 中国重汽集团济南动力有限公司 | A kind of Over-size transport tractor chassis assembly |
| CN114763181A (en) * | 2021-01-13 | 2022-07-19 | 陕西汽车集团有限责任公司 | Novel straight-through light truck frame with equal width |
| CN113879400B (en) * | 2021-10-28 | 2022-11-08 | 泰安航天特种车有限公司 | Frame structure suitable for heavy type electrically-driven special vehicle chassis |
| CN114132382B (en) * | 2021-11-25 | 2023-05-05 | 北京航天发射技术研究所 | Chassis frame |
| CN216468081U (en) * | 2021-12-29 | 2022-05-10 | 东风小康汽车有限公司重庆分公司 | Cross beam assembly structure for micro truck frame |
| CN216916019U (en) * | 2021-12-31 | 2022-07-08 | 泰安航天特种车有限公司 | Variable cross-section frame for special vehicle and suspension system matched with variable cross-section frame |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102923193A (en) * | 2012-11-22 | 2013-02-13 | 陕西重型汽车有限公司 | Rear balanced suspension frame system of heavy-duty car |
| CN108706048A (en) * | 2018-06-13 | 2018-10-26 | 山东浩信浩德精密机械有限公司 | Truck frame and its bearing beam |
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| Publication number | Publication date |
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| CN115503823A (en) | 2022-12-23 |
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