CN112429083A - Light-duty high motor cross-country vehicle frame structure - Google Patents
Light-duty high motor cross-country vehicle frame structure Download PDFInfo
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- CN112429083A CN112429083A CN202011168705.6A CN202011168705A CN112429083A CN 112429083 A CN112429083 A CN 112429083A CN 202011168705 A CN202011168705 A CN 202011168705A CN 112429083 A CN112429083 A CN 112429083A
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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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Abstract
The invention discloses a light high-mobility cross-country vehicle frame structure, which comprises: the vehicle body suspension structure comprises a front bumper, a front suspension mounting beam, a cross beam, a longitudinal beam, a vehicle body suspension beam, a cargo box supporting structure, a rear suspension mounting beam and a rear bumper; the two longitudinal beams are oppositely arranged along the left and right directions of the vehicle body and comprise a left longitudinal beam and a right longitudinal beam; the longitudinal beam is a box-shaped beam formed by welding two first channel-shaped beams along the left and right directions of the vehicle body; the longitudinal beam is provided with an engine mounting hole for mounting an engine, a transmission mounting hole for mounting a transmission and a suspension mounting hole for mounting a suspension; the longitudinal beam comprises a front section, a middle section and a rear section which are integrally formed along the front and rear directions of the vehicle body; the front vehicle section and the rear vehicle section are both higher than the middle vehicle section, so that the longitudinal beam is arranged in a high-middle mode at two ends along the front-rear direction of the vehicle body. The invention meets the requirement of high-mobility running of the off-road vehicle, and has high local strength, good overall flexibility and strong bearing capacity.
Description
Technical Field
The invention belongs to the technical field of off-road vehicle frame structures, and particularly relates to a light high-mobility off-road vehicle frame structure.
Background
The cross-country vehicle usually adopts non-formula structure of bearing, and assembly and part such as automobile body, engine, derailleur, front and back axle, suspension are fixed on the frame, and the frame is the bridge formula structure of cross-country vehicle chassis, is the basis and the skeleton of whole cross-country vehicle. The frame is used for fixing the assemblies to keep the assemblies at correct relative positions and simultaneously meets the requirements of overall arrangement of the whole vehicle, bearing capacity of the whole vehicle, man-machine arrangement and the like. The frame is an important component of the off-road vehicle, and the selection of the frame structure scheme is related to the achievement of the performance of the off-road vehicle in all aspects. Off-road vehicles typically employ a frame structure of a side sill type.
Off-road vehicles are generally used under severe road conditions, need to travel on grade highways, rural dirt roads and non-road areas (such as undulating, muddy, accumulated snow, sandy land, jungle roads and the like), and have very high requirements on the structural strength of the vehicle frame. The structural design of the frame not only needs to meet the practicability and reliability, but also needs to be easy to manufacture and has better economical efficiency.
Disclosure of Invention
In response to the above-identified deficiencies in the art or needs for improvement, the present invention provides a lightweight high mobility off-road vehicle frame structure. The two ends of the frame structure are high and the middle is low, so that the whole vehicle is ensured to have a ground clearance of more than 400mm, and the requirement of high-mobility running of the off-road vehicle can be met; the whole frame structure is designed in a light weight mode, the local strength is high, the whole flexibility is good, the bearing capacity is strong, and the use requirements of cross-country heavy load and various bad cross-country road conditions can be met; and the frame structure adopts a scheme modular design, the manufacturing and assembling process is simple, the maintenance and the disassembly are convenient, the manufacturing cost is low, and the economy is good.
The invention discloses a light high-mobility cross-country vehicle frame structure, which comprises:
the vehicle body suspension structure comprises a front bumper, a front suspension mounting beam, a cross beam, a longitudinal beam, a vehicle body suspension beam, a cargo box supporting structure, a rear suspension mounting beam and a rear bumper;
the two longitudinal beams are oppositely arranged along the left and right direction of the vehicle body, and comprise a left longitudinal beam and a right longitudinal beam; the longitudinal beam is a box-shaped beam formed by welding two first groove-shaped beams along the left and right directions of the vehicle body; the longitudinal beam is provided with an engine mounting hole for mounting an engine, a transmission mounting hole for mounting a transmission and a suspension mounting hole for mounting a suspension; the longitudinal beam comprises a front section, a middle section and a rear section which are integrally formed along the front and rear directions of the vehicle body; the front vehicle section and the rear vehicle section are both arranged higher than the middle vehicle section, so that the longitudinal beams are arranged in a manner that the two ends are higher and the middle is lower along the front and rear directions of the vehicle body;
the front bumper is arranged at the front ends of the two front vehicle sections and is respectively connected with the two front vehicle sections; the front suspension mounting beam is arranged between the two front vehicle sections and is respectively connected with the two front vehicle sections; the more than one cross beam is selectively arranged between the two middle vehicle sections and is respectively connected with the two middle vehicle sections; the vehicle body suspension beam is arranged at the rear section of the two vehicle middle sections and is respectively connected with the two vehicle middle sections; each middle vehicle section is provided with one cargo box supporting structure, and the two cargo box supporting structures are oppositely arranged along the left and right directions of the vehicle body; the rear suspension mounting beam is arranged between the two rear vehicle sections and is respectively connected with the two rear vehicle sections; the rear bumpers are arranged at the rear ends of the two rear vehicle sections and are respectively connected with the two rear vehicle sections.
Optionally, the front bumper is a box-shaped structure including a front bumper main body, a mounting bracket, a vehicle body suspension bracket for connecting with a vehicle body, and a radiator assembly mounting bracket for mounting a radiator assembly; the front bumper body is provided with a winch bracket mounting hole for mounting a winch bracket and a traction ring mounting hole for mounting a trailer traction ring; the two mounting brackets are oppositely arranged on the front bumper main body along the left-right direction of the vehicle body; the two mounting brackets comprise a left mounting bracket and a right mounting bracket; the front end of the left mounting bracket is connected with the front bumper main body, and the rear end of the left mounting bracket is connected with the left longitudinal beam; the front end of the right mounting bracket is connected with the front bumper main body, and the rear end of the right mounting bracket is connected with the right longitudinal beam; the end part of each mounting bracket, which is close to one side of the front bumper body, is provided with the automobile body suspension bracket and the radiator assembly mounting bracket.
Optionally, the front suspension mounting beam comprises a front left hanging plate and a front right hanging plate for mounting the suspension and the front axle, a first front cross beam and a first rear cross beam for mounting the front axle, a first tie hook for binding and tying, and a steering gear mounting beam for mounting the steering gear; the front left hanging plate and the front right hanging plate are oppositely arranged along the left-right direction of the vehicle body, the lower ends of the front left hanging plate and the front right hanging plate are connected through the steering engine mounting beam and the first rear cross beam, and the steering engine mounting beam and the first rear cross beam are arranged along the front-back direction of the vehicle body; a space between the front left hanging plate and the front right hanging plate forms a speed reducer mounting space for mounting a speed reducer; the front left hanging plate is connected with the left longitudinal beam, and the front right hanging plate is connected with the right longitudinal beam; the front left hanging plate and the front right hanging plate are provided with the first fastening hook.
Optionally, the cross beam comprises a U-shaped box beam and a left connecting plate and a right connecting plate respectively arranged at two ends of the U-shaped box beam; the U-shaped box girder is formed by welding two second groove-shaped girders along the front and back directions of the vehicle body, and comprises a left box girder, a middle box girder and a right box girder which are integrally formed along the left and right directions of the vehicle body; the sectional area of the left side end face of the left side box girder far away from the middle box girder is larger than that of the middle box girder, and the sectional area of the right side end face of the right side box girder far away from the middle box girder is larger than that of the middle box girder; the left connecting plate covers the left side end face and is connected with the left longitudinal beam; and the right connecting plate is covered on the end face of the right side and is connected with the right longitudinal beam.
Optionally, the vehicle body suspension beam comprises a center beam, a left support frame and a right support frame; the middle beam comprises a bottom plate, two side plates and two end plates; the two side plates are respectively arranged on two sides of the bottom plate along the front-back direction of the vehicle body to form a U-shaped groove structure; the two end plates are respectively packaged at two ends of the groove-shaped structure and are respectively connected with the left supporting frame and the right supporting frame, so that the suspension beam of the automobile body is in n-shaped structural arrangement, the upper end of the left supporting frame is connected with the left end of the middle beam, the upper end of the right supporting frame is connected with the right end of the middle beam, the lower end of the left supporting frame is connected with the left longitudinal beam, and the lower end of the right supporting frame is connected with the right longitudinal beam, so that the middle beam is erected above the longitudinal beam.
Optionally, the cross member is disposed below one or more of the vehicle body suspension beams.
Optionally, the cargo box support structure comprises an F-shaped support frame and a connecting bracket; the F-shaped support frame comprises a longitudinal plate, a first vertical plate and a second vertical plate which are integrally formed; the longitudinal plate extends along the front-back direction of the vehicle body, the first vertical plate and the second vertical plate are sequentially arranged on the longitudinal plate along the front-back direction of the vehicle body, the first vertical plate is connected with the middle part of the longitudinal plate, the second vertical plate is connected with the rear end of the longitudinal plate, and the lower ends of the first vertical plate and the second vertical plate are abutted against the upper surface of the longitudinal beam; two ends of the longitudinal plate are respectively connected with the vehicle body suspension beam; the connecting support is arranged on the outer side of the first vertical plate in a left-right direction of the vehicle body in a stacked mode, the connecting support is connected with the F-shaped supporting frame, a container connecting hole used for being connected with a container is formed in the upper end of the connecting support, and the lower end of the connecting support is connected with the longitudinal beam.
Optionally, the rear suspension mounting beam comprises a left rear hanging plate and a right rear hanging plate for mounting the suspension and the rear axle, an upper beam and a suspension beam for mounting the rear axle, a second front beam and a second rear beam for mounting the suspension mounting beam, and a second fastening hook for binding and fastening; the left rear hanging plate and the right rear hanging plate are oppositely arranged along the left-right direction of the vehicle body, the upper ends of the left rear hanging plate and the right rear hanging plate are connected through the suspension beam and the upper cross beam, and the suspension beam and the upper cross beam are sequentially arranged along the front-back direction of the vehicle body; the lower ends of the left rear hanging plate and the right rear hanging plate are connected through the second front cross beam and the second rear cross beam, and the second front cross beam and the second rear cross beam are sequentially arranged along the front-rear direction of the vehicle body; the left rear hanging plate is connected with the left longitudinal beam, and the right rear hanging plate is connected with the right longitudinal beam; the left rear hanging plate and the right rear hanging plate are provided with the second fastening hook.
Optionally, the rear bumper comprises a left tail light bracket, a middle cross member, a right tail light bracket, a tow hook and a reinforcement bracket; the left tail lamp support is connected with the left end of the middle cross beam, and the right tail lamp support is connected with the right end of the middle cross beam, so that the left tail lamp support, the middle cross beam and the right tail lamp support are arranged in a straight line shape; the outer side of the middle cross beam is provided with the trailer hook; the middle cross beam is respectively connected with the left longitudinal beam and the right longitudinal beam; the reinforcing support is arranged on the inner side of the middle cross beam and comprises a left connecting plate, a middle connecting plate and a right connecting plate, the left connecting plate is connected with the left end of the middle connecting plate, and the right connecting plate is connected with the right end of the middle connecting plate, so that the reinforcing support is a corner piece; the middle connecting plate is connected with the middle cross beam, the left connecting plate is connected with the left longitudinal beam, and the right connecting plate is connected with the right longitudinal beam.
Optionally, at least one of the front bumper, the front suspension mounting beam, the cross beam, the longitudinal beam, the body suspension beam, the cargo box support structure, the rear suspension mounting beam and the rear bumper is a box girder structure and/or provided with lightening holes.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. the whole frame structure has high two ends and low middle, ensures higher ground clearance of the whole vehicle, and can meet the requirement of high-mobility running of the off-road vehicle.
2. This frame structure adopts the lightweight design, arranges rationally, and makes frame local strength high through setting up of crossbeam, and whole flexibility is good, and bearing capacity is strong, can satisfy the user demand of cross-country heavy load demand and various abominable cross-country road conditions.
3. Each part of the frame structure adopts a modular design, the manufacturing and assembling process is simple, the maintenance and the disassembly are convenient, a large number of groove-shaped beam structures are adopted, the whole frame structure adopts an assembly process scheme, the manufacturing cost is low, and the economical efficiency is good.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a front bumper according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an embodiment of a lower fender panel of the invention;
FIG. 4 is a schematic structural view of one embodiment of a front suspension mounting beam of the present invention;
FIG. 5 is a schematic structural view of a cross beam according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of one embodiment of a stringer of the present invention;
FIG. 7 is a schematic structural view of another embodiment of a stringer in accordance with the present invention;
FIG. 8 is a schematic structural view of one embodiment of a vehicle body suspension beam of the present invention;
fig. 9 is a schematic view of one embodiment of the cargo box support structure of the present invention;
FIG. 10 is a schematic structural view of one embodiment of a rear suspension mounting beam of the present invention;
fig. 11 is a schematic structural view of a rear bumper according to an embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-front bumper, 11-front bumper body, 111-winch bracket mounting hole, 112-traction ring mounting hole, 12-mounting bracket, 13-vehicle body suspension bracket, 14-radiator assembly mounting bracket, 2-front suspension mounting beam, 21-front left hanging plate, 22-front right hanging plate, 23-first front cross beam, 24-first rear cross beam, 25-first fastening hook, 26-steering engine mounting beam, 3-cross beam, 311-left box beam, 312-middle box beam, 313-right box beam, 32-left connecting plate, 33-right connecting plate, 4-longitudinal beam, 41-vehicle front section, 42-front transition section, 43-vehicle middle section, 44-rear transition section, 45-vehicle rear section, 46-first channel beam, 461-first welded plate, 462-mounting plate, 463-second welded plate, 5-vehicle body suspension beam, 51-middle beam, 511-bottom plate, 512-side plate, 52-left support frame, 53-right support frame, 6-cargo box support structure, 61-longitudinal plate, 611-vehicle body suspension beam connecting hole, 62-first vertical plate, 63-second vertical plate, 64-connecting bracket, 641-cargo box connecting hole, 642-longitudinal beam connecting hole, 7-rear suspension frame mounting beam, 71-left rear suspension plate, 72-right rear suspension plate, 73-upper beam, 74-suspension beam, 75-second front beam, 76-second rear beam, 77-second fastening hook, 8-rear bumper, 81-left rear lamp bracket, 82-middle beam, 83-right tail lamp support, 84-tow hook, 85-reinforcing support, 851-left side connecting plate, 852-middle connecting plate, 853-right side connecting plate, 9-spiral spring seat, 10-lower protection plate, 101-front bumper connecting hole, 102-front suspension mounting beam connecting hole and 20-lightening hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. For convenience of description, the upper, lower, left, right, front and rear in this document are the upper, lower, left, right, front and rear of the all terrain vehicle and do not necessarily represent actual conditions.
In one embodiment of the present invention, as shown in fig. 1-11, a lightweight high mobility off-road vehicle frame structure includes: the structure comprises a front bumper 1, a front suspension mounting beam 2, a cross beam 3, a longitudinal beam 4, a vehicle body suspension beam 5, a cargo box supporting structure 6, a rear suspension mounting beam 7 and a rear bumper 8; the two longitudinal beams 4 are oppositely arranged along the left and right direction of the vehicle body, and the two longitudinal beams 4 comprise a left longitudinal beam and a right longitudinal beam; the longitudinal beam 4 is a box-shaped beam formed by welding two first channel beams 46 along the left and right directions of the vehicle body; the longitudinal beam 4 is provided with an engine mounting hole for mounting an engine, a transmission mounting hole for mounting a transmission and a suspension mounting hole for mounting a suspension; the longitudinal beam 4 comprises a front section 41, a middle section 43 and a rear section 45 which are integrally formed along the front and rear direction of the vehicle body; the front vehicle section 41 and the rear vehicle section 45 are both arranged higher than the middle vehicle section 43, so that the longitudinal beams 4 are arranged in a manner that the two ends are high and the middle is low along the front and rear direction of the vehicle body; the front bumper 1 is arranged at the front ends of the two front vehicle sections 41 and is respectively connected with the two front vehicle sections 41; the front suspension mounting beam 2 is arranged between the two front vehicle sections 41 and is respectively connected with the two front vehicle sections 41; more than one cross beam 3 is selectively arranged between the two middle vehicle sections 43 and is respectively connected with the two middle vehicle sections 43; the vehicle body suspension beam 5 is arranged at the rear section of the two vehicle middle sections 43 and is respectively connected with the two vehicle middle sections 43; each vehicle middle section 43 is provided with a cargo box supporting structure 6, and the two cargo box supporting structures 6 are oppositely arranged along the left and right directions of the vehicle body; the rear suspension mounting beam 7 is arranged between the two rear vehicle sections 45 and is respectively connected with the two rear vehicle sections 45; the rear bumper 8 is provided at the rear ends of the two rear vehicle sections 45 and is connected to the two rear vehicle sections 45, respectively.
In practical application, the design that the two ends of the longitudinal beam 4 are high and the middle is low ensures that the whole off-road vehicle has a ground clearance of more than 400mm, and can meet the requirement of high-mobility running of the off-road vehicle. The longitudinal beam 4 is a box-shaped beam, so that the structural strength and the bearing capacity of the longitudinal beam are guaranteed, and meanwhile, the longitudinal beam is good in flexibility and light in weight; the cross beam 3 is arranged at a proper position between the left longitudinal beam and the right longitudinal beam to strengthen the local strength of the frame structure, so that the requirement of the off-road vehicle on the local structural strength of the frame structure is met; the front bumper 1, the front suspension mounting beam 2, the cross beam 3, the longitudinal beam 4, the vehicle body suspension beam 5, the cargo box supporting structure 6, the rear suspension mounting beam 7 and the rear bumper 8 are mutually independent parts and are connected into a whole, and the manufacturing and assembling process of the vehicle frame structure is simple and the maintenance and the disassembly are convenient through the modular design of the parts of the vehicle frame structure; each single component can realize batch production, and the manufacturing cost is low and the economy is good to reduce the cost of cross country vehicle's cost.
Optionally, the front section 41 and the middle section 43 are connected by an obliquely arranged front transition section 42, and the rear section 45 and the middle section 43 are connected by an obliquely arranged rear transition section 44, and preferably, the cross-sectional shapes of the front section 41, the middle section 43 and the rear section 45 of the longitudinal beam 4 are the same. Optionally, the first channel beam 46 is a U-shaped member, and includes a first welding plate 461, a mounting plate 462, and a second welding plate 463, where the first welding plate 461 and the second welding plate 463 are oppositely disposed on two sides of the mounting plate 462 in the vehicle height direction; two pieces of the first channel beam 46 are stacked crosswise in the left-right direction of the vehicle body such that the first welding plate 461 and the second welding plate 463 are partially stacked and welded to form a box beam. Preferably, the outer sides of the front section 41 and the rear section 45 are provided with the coil spring seats 9, and the coil spring seats 9, the front suspension mounting beam 2 and the rear suspension mounting beam 7 are respectively arranged on the inner side and the outer side of the longitudinal beam 4 along the left-right direction of the vehicle body.
Optionally, the front bumper 1 is a box-type structure including a front bumper main body 11, a mounting bracket 12, a vehicle body suspension bracket 13 for connecting with a vehicle body, and a radiator assembly mounting bracket 14 for mounting a radiator assembly; the front bumper body 11 is provided with a winch bracket mounting hole 111 for mounting a winch bracket and a towing ring mounting hole 112 for mounting a towing ring of a trailer; the two mounting brackets 12 are oppositely arranged on the front bumper body 11 along the left-right direction of the vehicle body; the two mounting brackets 12 comprise a left mounting bracket and a right mounting bracket; the front end of the left mounting bracket is connected with the front bumper body 11, and the rear end of the left mounting bracket is connected with the left longitudinal beam; the front end of the right mounting bracket is connected with the front bumper body 11, and the rear end of the right mounting bracket is connected with the right longitudinal beam; each of the mounting brackets 12 is provided with a body suspension bracket 13 and a radiator assembly mounting bracket 14 at an end portion thereof adjacent to the front bumper body 11.
Optionally, the mounting bracket 12 is a corner piece, including a front bracket and a rear bracket that are angularly disposed, the front bracket being connected to the front bumper body 11, the rear bracket being connected to the longitudinal beam 4, and the front end of the front bracket being lower than the rear bracket, the rear bracket extending horizontally, so that the mounting position of the bumper body is slightly lower than the front section 41 of the longitudinal beam 4. Preferably, the vehicle body suspension bracket 13 is mounted to the end portion of the front bracket on the side close to the front bumper body 11, and the vehicle body suspension bracket 13 is disposed above the front bracket; the radiator assembly mounting bracket 14 is mounted at a corner of the mounting bracket 12 and is disposed above the mounting bracket 12. Optionally, the mounting bracket 12 is provided with lightening holes 20.
Optionally, the mounting bracket 12 is connected to the front bumper body 11 by welding, and the front bumper 1 is welded with parts such as a vehicle body suspension, a cooling system suspension bracket, etc., and the front bumper 1 is integrally mounted and fixed on the front end of the vehicle frame as a part of the overall shape of the vehicle and plays a role of preventing the vehicle from being collided with. Preferably, the front bumper 1 and the side member 4 are bolted to facilitate disassembly.
Optionally, the front bumper 1 and the front suspension mounting beam 2 are connected by a lower protection plate 10, the lower protection plate 10 is an L-like shaped plate and comprises a first plate connected with the front bumper 1 and a second plate connected with the front suspension mounting beam 2; the upper end of the first plate is provided with a front bumper connecting hole 101 used for being connected with a front bumper 1, and the rear end of the second plate is provided with a front suspension mounting beam connecting hole 102 used for being connected with a front suspension mounting beam 2; so that the parts such as the speed reducer mounted to the front suspension mounting beam 2 are protected, it is preferable that the lower fender panel 10 is a trough-shaped panel and is provided with a lightening hole 20, thereby achieving a lightening design and deformation resistance of the lower fender panel 10.
Alternatively, the front suspension mounting beam 2 includes a front left link plate 21 and a front right link plate 22 for mounting a suspension (i.e., a front suspension), a first front cross member 23 and a first rear cross member 24 for mounting a front axle, a first tie hook 25 for binding and tying, and a steering gear mounting beam 26 for mounting a steering gear; the front left hanging plate 21 and the front right hanging plate 22 are oppositely arranged along the left-right direction of the vehicle body, the lower ends of the front left hanging plate 21 and the front right hanging plate 22 are connected through a steering gear mounting beam 26 and a first rear cross beam 24, and the steering gear mounting beam 26 and the first rear cross beam 24 are arranged along the front-rear direction of the vehicle body; a space between the front left hanging plate 21 and the front right hanging plate 22 forms a reducer mounting space for mounting a reducer; the front left hanging plate 21 is connected with the left longitudinal beam, and the front right hanging plate 22 is connected with the right longitudinal beam; the front left hanging plate 21 and the front right hanging plate 22 are both provided with a first fastening hook 25. Optionally, the front left hanging plate 21 and the front right hanging plate 22 are both thin-walled special-shaped castings and are provided with a plurality of reinforcing ribs and lightening holes 20; the first front cross beam 23 is a rod piece provided with a weight-reducing gap, and the first rear cross beam 24 is of a box girder structure; the first front cross member 23 and the first rear cross member 24 serve as fixed cross members of a front axle of the all terrain vehicle; the steering gear mounting beam 26 is of a box beam structure; the steering gear mounting beam 26 serves as a fixed mounting cross beam of a steering gear of the off-road vehicle; the front left hanging plate 21 and the front right hanging plate 22 are both provided with a first fastening hook 25 for binding and fastening the off-road vehicle. The components of the front suspension mounting beam 2 are preferably connected by bolts to form the front suspension mounting beam 2 in a combined manner; the front suspension mounting beam 2 and the longitudinal beam 4 are preferably connected by bolts, and the front suspension mounting beam 2 is used as a fixing base of a suspension (namely a front suspension) and a front axle of the off-road vehicle and bears and transmits acting force from the suspension and the front axle.
Optionally, the cross beam 3 comprises a U-shaped box beam and a left connecting plate 32 and a right connecting plate 33 respectively arranged at two ends of the U-shaped box beam; the U-shaped box girder is formed by welding two second groove-shaped girders in the front-back direction of the vehicle body, and comprises a left box girder 311, a middle box girder 312 and a right box girder 313 which are integrally formed in the left-right direction of the vehicle body; the sectional area of the left end surface of the left box beam 311 on the side away from the middle box beam 312 is larger than that of the middle box beam 312, and the sectional area of the right end surface of the right box beam 313 on the side away from the middle box beam 312 is larger than that of the middle box beam 312; the left connecting plate 32 covers the left end face and is connected with the left longitudinal beam; the right connecting plate 33 is covered on the right end face and connected with the right longitudinal beam. Optionally, the cross beam 3 is provided with lightening holes 20. The cross beam 3 mainly functions to improve the local rigidity strength of the frame structure and ensure the uniform coordination of the overall rigidity of the frame structure.
Alternatively, the vehicle body suspension member 5 includes a center member 51, a left support frame 52, and a right support frame 53; the center sill 51 includes a bottom plate 511, two side plates 512, and two end plates; the two side plates 512 are respectively arranged on two sides of the bottom plate 511 along the front-back direction of the vehicle body to form a U-shaped groove structure; two end plates are respectively packaged at two ends of the groove-shaped structure and are respectively connected with the left support frame 52 and the right support frame 53, so that the vehicle body suspension beam 5 is arranged in an n-shaped structure, the upper end of the left support frame 52 is connected with the left end of the middle beam 51, the upper end of the right support frame 53 is connected with the right end of the middle beam 51, the lower end of the left support frame 52 is connected with the left longitudinal beam, and the lower end of the right support frame 53 is connected with the right longitudinal beam, so that the middle beam 51 is erected above the longitudinal beam 4. Alternatively, more than one vehicle body suspension beam 5 may be mounted to the side member 4 as needed, and in this embodiment, two vehicle body suspension beams 5 are preferably mounted to the side member 4. Optionally, the left support frame 52 and the right support frame 53 are box girder structures and are provided with lightening holes 20. Alternatively, the vehicle body suspension beam 5 is a channel beam structure, preferably bolted to the middle of the longitudinal beam 4, forming a bridge, and mainly functioning as a main beam and also functioning as a vehicle body suspension bracket 13 to provide support for the vehicle body suspension system.
Optionally, a cross beam 3 is arranged below one or more body suspension beams 5. Alternatively, a cross member 3 is provided at the front end of the center section 43, and a cross member 3 is provided at the vehicle body suspension beam 5 disposed forward of the two vehicle body suspension beams 5. Preferably, in order to facilitate the reduction of the hole arrangement of the longitudinal beam 4, the cross beam 3 arranged below the vehicle body suspension beam 5 preferably shares a group of connecting holes with the vehicle body suspension beam 5, and the number of the connecting bolts is reduced while the hole arrangement on the longitudinal beam 4 is reduced, so that the assembly efficiency is improved, the structural strength of the longitudinal beam 4 is improved, the structural concentration of the off-road vehicle is improved, the occupied space is reduced, and the integration is higher.
Optionally, the cargo box support structure 6 includes F-shaped support brackets and attachment brackets 64; the F-shaped support frame comprises a longitudinal plate 61, a first vertical plate 62 and a second vertical plate 63 which are integrally formed; the longitudinal plate 61 extends along the front-rear direction of the vehicle body, the first vertical plate 62 and the second vertical plate 63 are sequentially arranged on the longitudinal plate 61 along the front-rear direction of the vehicle body, the first vertical plate 62 is connected with the middle part of the longitudinal plate 61, the second vertical plate 63 is connected with the rear end of the longitudinal plate 61, and the lower ends of the first vertical plate 62 and the second vertical plate 63 are abutted against the upper surface of the longitudinal beam 4; two ends of the longitudinal plate 61 are respectively connected with a vehicle body suspension beam 5; the connecting bracket 64 is arranged outside the first vertical plate 62 in a stacked manner in the left-right direction of the vehicle body, the connecting bracket 64 is connected with the F-shaped support frame, a cargo box connecting hole 641 for connecting a cargo box is formed in the upper end of the connecting bracket 64, and the lower end of the connecting bracket 64 is connected with the longitudinal beam 4. Alternatively, the connecting bracket 64 is disposed between two vehicle body suspension beams 5, and one end of the longitudinal plate 61 is connected to one vehicle body suspension beam 5, and likewise, in order to reduce the hole arrangement and the number of bolts, the longitudinal plate 61 is disposed between the left support frame 52 and the middle beam 51 to share one set of connecting holes, and the longitudinal plate 61 is disposed between the right support frame 53 and the middle beam 51 to share one set of connecting holes; therefore, the vehicle body suspension beams 5 and the cargo box supporting structure 6 jointly form a supporting base of the cargo box, and the firmness and the stability of the cargo box mounted on the frame structure are greatly improved. The cargo box support structure 6 primarily functions to provide a support and mounting platform for the cargo box of the off-road vehicle. Alternatively, the longitudinal plate 61 is provided with a vehicle body suspension beam attachment hole 611 for attachment to the vehicle body suspension beam 5; the lower ends of the attachment brackets 64 are provided with stringer attachment holes 642 for attachment to the stringers 4 so that the cargo box support structure 6 is supported by both the stringers 4 and the stringers 4, improving the load carrying capability of the cargo box support structure 6.
Optionally, the rear suspension mounting beam 7 includes a left rear link plate 71 and a right rear link plate 72 for mounting the suspension, an upper cross beam 73 and a suspension beam 74 for mounting the rear axle, a second front cross beam 75 and a second rear cross beam 76 for mounting the suspension mounting beam, a second tie-down hook 77 for tie-down; the left rear hanging plate 71 and the right rear hanging plate 72 are oppositely arranged along the left-right direction of the vehicle body, the upper ends of the left rear hanging plate 71 and the right rear hanging plate 72 are connected through a suspension beam 74 and an upper beam 73, and the suspension beam 74 and the upper beam 73 are sequentially arranged along the front-back direction of the vehicle body; the lower ends of the left rear hanging plate 71 and the right rear hanging plate 72 are connected through a second front cross beam 75 and a second rear cross beam 76, and the second front cross beam 75 and the second rear cross beam 76 are sequentially arranged along the front-rear direction of the vehicle body; the left rear hanging plate 71 is connected with the left longitudinal beam, and the right rear hanging plate 72 is connected with the right longitudinal beam; the left rear hanging plate 71 and the right rear hanging plate 72 are both provided with second fastening hooks 77.
Optionally, the left rear hanging plate 71 and the right rear hanging plate 72 are both thin-walled special-shaped castings; the upper cross member 73 and the suspension member 74 serve as fixed cross members of a rear axle of the all terrain vehicle; the second front cross member 75 and the second rear cross member 76 are thin-walled castings, and serve as support cross members at the lower portion of the rear suspension mounting beam 7; the left rear hanging plate 71 and the right rear hanging plate 72 are both provided with a second fastening hook 77 for binding and fastening the off-road vehicle. All parts of the rear suspension mounting beam 7 are connected by bolts to form the rear suspension mounting beam 7 in a combined manner; the rear suspension mounting beam 7 and the longitudinal beam 4 are preferably connected by bolts, and are used as a fixing base of a suspension (namely, a rear suspension) and a rear axle of the off-road vehicle, and bear and transmit acting force from the suspension and the axle.
Optionally, rear bumper 8 includes a left tail light bracket 81, a middle cross member 82, a right tail light bracket 83, a tow hook 84, and a reinforcement bracket 85; left tail lamp bracket 81 is connected to the left end of central beam 82, and right tail lamp bracket 83 is connected to the right end of central beam 82, so that left tail lamp bracket 81, central beam 82 and right tail lamp bracket 83 are arranged in a straight line; the outer side of the middle cross beam 82 is provided with a tow hook 84; the middle cross beam 82 is connected with the left longitudinal beam and the right longitudinal beam respectively; the reinforcing bracket 85 is arranged on the inner side of the middle cross beam 82, the reinforcing bracket 85 comprises a left connecting plate 851, a middle connecting plate 852 and a right connecting plate 853, the left connecting plate 851 is connected with the left end of the middle connecting plate 852, and the right connecting plate 853 is connected with the right end of the middle connecting plate 852, so that the reinforcing bracket 85 is a corner piece; the middle connecting plate 852 is connected with the middle cross beam 82, the left connecting plate 851 is connected with the left longitudinal beam, and the right connecting plate 853 is connected with the right longitudinal beam. Alternatively, left tail light bracket 81, right tail light bracket 83, center cross member 82, and reinforcing bracket 85 are all channel beam structures. The rear bumper 8 mainly functions as a sub-cross member and as an exterior member of the all terrain vehicle as a decoration.
Optionally, at least one of the front bumper 1, the front suspension mounting beam 2, the cross member, the side member 4, the body suspension beam 5, the cargo box support structure 6, the rear suspension mounting beam 7 and the rear bumper 8 is a box girder structure and/or provided with lightening holes 20. In practical applications, the shape of the lightening hole 20 may be regular circle, ellipse, quadrangle or irregular polygon.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A light-duty high motor cross-country vehicle frame structure characterized by, includes:
the vehicle body suspension structure comprises a front bumper, a front suspension mounting beam, a cross beam, a longitudinal beam, a vehicle body suspension beam, a cargo box supporting structure, a rear suspension mounting beam and a rear bumper;
the two longitudinal beams are oppositely arranged along the left and right direction of the vehicle body, and comprise a left longitudinal beam and a right longitudinal beam; the longitudinal beam is a box-shaped beam formed by welding two first groove-shaped beams along the left and right directions of the vehicle body; the longitudinal beam is provided with an engine mounting hole for mounting an engine, a transmission mounting hole for mounting a transmission and a suspension mounting hole for mounting a suspension; the longitudinal beam comprises a front section, a middle section and a rear section which are integrally formed along the front and rear directions of the vehicle body; the front vehicle section and the rear vehicle section are both arranged higher than the middle vehicle section, so that the longitudinal beams are arranged in a manner that the two ends are higher and the middle is lower along the front and rear directions of the vehicle body;
the front bumper is arranged at the front ends of the two front vehicle sections and is respectively connected with the two front vehicle sections; the front suspension mounting beam is arranged between the two front vehicle sections and is respectively connected with the two front vehicle sections; the more than one cross beam is selectively arranged between the two middle vehicle sections and is respectively connected with the two middle vehicle sections; the vehicle body suspension beam is arranged at the rear section of the two vehicle middle sections and is respectively connected with the two vehicle middle sections; each middle vehicle section is provided with one cargo box supporting structure, and the two cargo box supporting structures are oppositely arranged along the left and right directions of the vehicle body; the rear suspension mounting beam is arranged between the two rear vehicle sections and is respectively connected with the two rear vehicle sections; the rear bumpers are arranged at the rear ends of the two rear vehicle sections and are respectively connected with the two rear vehicle sections.
2. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the front bumper is of a box-type structure and comprises a front bumper main body, a mounting bracket, a vehicle body suspension bracket used for being connected with a vehicle body and a radiator assembly mounting bracket used for mounting a radiator assembly;
the front bumper body is provided with a winch bracket mounting hole for mounting a winch bracket and a traction ring mounting hole for mounting a trailer traction ring;
the two mounting brackets are oppositely arranged on the front bumper main body along the left-right direction of the vehicle body; the two mounting brackets comprise a left mounting bracket and a right mounting bracket; the front end of the left mounting bracket is connected with the front bumper main body, and the rear end of the left mounting bracket is connected with the left longitudinal beam; the front end of the right mounting bracket is connected with the front bumper main body, and the rear end of the right mounting bracket is connected with the right longitudinal beam; the end part of each mounting bracket, which is close to one side of the front bumper body, is provided with the automobile body suspension bracket and the radiator assembly mounting bracket.
3. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the front suspension mounting beam comprises a front left hanging plate and a front right hanging plate for mounting a suspension and a front axle, a first front cross beam and a first rear cross beam for mounting the front axle, a first fastening hook for binding and fastening and a steering machine mounting beam for mounting a steering machine;
the front left hanging plate and the front right hanging plate are oppositely arranged along the left-right direction of the vehicle body, the lower ends of the front left hanging plate and the front right hanging plate are connected through the steering engine mounting beam and the first rear cross beam, and the steering engine mounting beam and the first rear cross beam are arranged along the front-back direction of the vehicle body; a space between the front left hanging plate and the front right hanging plate forms a speed reducer mounting space for mounting a speed reducer; the front left hanging plate is connected with the left longitudinal beam, and the front right hanging plate is connected with the right longitudinal beam; the front left hanging plate and the front right hanging plate are provided with the first fastening hook.
4. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the cross beam comprises a U-shaped box beam, and a left connecting plate and a right connecting plate which are respectively arranged at two ends of the U-shaped box beam;
the U-shaped box girder is formed by welding two second groove-shaped girders along the front and back directions of the vehicle body, and comprises a left box girder, a middle box girder and a right box girder which are integrally formed along the left and right directions of the vehicle body; the sectional area of the left side end face of the left side box girder far away from the middle box girder is larger than that of the middle box girder, and the sectional area of the right side end face of the right side box girder far away from the middle box girder is larger than that of the middle box girder; the left connecting plate covers the left side end face and is connected with the left longitudinal beam; and the right connecting plate is covered on the end face of the right side and is connected with the right longitudinal beam.
5. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the vehicle body suspension beam comprises a middle beam, a left support frame and a right support frame;
the middle beam comprises a bottom plate, two side plates and two end plates; the two side plates are respectively arranged on two sides of the bottom plate along the front-back direction of the vehicle body to form a U-shaped groove structure; the two end plates are respectively packaged at two ends of the groove-shaped structure and are respectively connected with the left supporting frame and the right supporting frame, so that the suspension beam of the automobile body is in n-shaped structural arrangement, the upper end of the left supporting frame is connected with the left end of the middle beam, the upper end of the right supporting frame is connected with the right end of the middle beam, the lower end of the left supporting frame is connected with the left longitudinal beam, and the lower end of the right supporting frame is connected with the right longitudinal beam, so that the middle beam is erected above the longitudinal beam.
6. The light weight high mobility off-road vehicle frame structure of claim 5, wherein:
the cross beam is arranged below one or more than one vehicle body suspension beams.
7. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the container supporting structure comprises an F-shaped supporting frame and a connecting bracket;
the F-shaped support frame comprises a longitudinal plate, a first vertical plate and a second vertical plate which are integrally formed; the longitudinal plate extends along the front-back direction of the vehicle body, the first vertical plate and the second vertical plate are sequentially arranged on the longitudinal plate along the front-back direction of the vehicle body, the first vertical plate is connected with the middle part of the longitudinal plate, the second vertical plate is connected with the rear end of the longitudinal plate, and the lower ends of the first vertical plate and the second vertical plate are abutted against the upper surface of the longitudinal beam; two ends of the longitudinal plate are respectively connected with the vehicle body suspension beam;
the connecting support is arranged on the outer side of the first vertical plate in a left-right direction of the vehicle body in a stacked mode, the connecting support is connected with the F-shaped supporting frame, a container connecting hole used for being connected with a container is formed in the upper end of the connecting support, and the lower end of the connecting support is connected with the longitudinal beam.
8. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the rear suspension mounting beam comprises a left rear hanging plate and a right rear hanging plate for mounting a suspension and a rear axle, an upper cross beam and a suspension beam for mounting the rear axle, a second front cross beam and a second rear cross beam for mounting the suspension mounting beam, and a second tying and fixing hook for binding and tying;
the left rear hanging plate and the right rear hanging plate are oppositely arranged along the left-right direction of the vehicle body, the upper ends of the left rear hanging plate and the right rear hanging plate are connected through the suspension beam and the upper cross beam, and the suspension beam and the upper cross beam are sequentially arranged along the front-back direction of the vehicle body; the lower ends of the left rear hanging plate and the right rear hanging plate are connected through the second front cross beam and the second rear cross beam, and the second front cross beam and the second rear cross beam are sequentially arranged along the front-rear direction of the vehicle body; the left rear hanging plate is connected with the left longitudinal beam, and the right rear hanging plate is connected with the right longitudinal beam; the left rear hanging plate and the right rear hanging plate are provided with the second fastening hook.
9. The light weight high mobility off-road vehicle frame structure of claim 1, wherein:
the rear bumper comprises a left tail lamp bracket, a middle cross beam, a right tail lamp bracket, a tow hook and a reinforcing bracket;
the left tail lamp support is connected with the left end of the middle cross beam, and the right tail lamp support is connected with the right end of the middle cross beam, so that the left tail lamp support, the middle cross beam and the right tail lamp support are arranged in a straight line shape; the outer side of the middle cross beam is provided with the trailer hook; the middle cross beam is respectively connected with the left longitudinal beam and the right longitudinal beam;
the reinforcing support is arranged on the inner side of the middle cross beam and comprises a left connecting plate, a middle connecting plate and a right connecting plate, the left connecting plate is connected with the left end of the middle connecting plate, and the right connecting plate is connected with the right end of the middle connecting plate, so that the reinforcing support is a corner piece; the middle connecting plate is connected with the middle cross beam, the left connecting plate is connected with the left longitudinal beam, and the right connecting plate is connected with the right longitudinal beam.
10. A light weight high mobility off-road vehicle frame structure as claimed in any one of claims 1 to 9, wherein:
at least one of the front bumper, the front suspension mounting beam, the cross beam, the longitudinal beam, the vehicle body suspension beam, the cargo box supporting structure, the rear suspension mounting beam and the rear bumper is of a box girder structure and/or is provided with a lightening hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011168705.6A CN112429083A (en) | 2020-10-28 | 2020-10-28 | Light-duty high motor cross-country vehicle frame structure |
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| CN202011168705.6A CN112429083A (en) | 2020-10-28 | 2020-10-28 | Light-duty high motor cross-country vehicle frame structure |
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| CN112429083A true CN112429083A (en) | 2021-03-02 |
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| CN202011168705.6A Pending CN112429083A (en) | 2020-10-28 | 2020-10-28 | Light-duty high motor cross-country vehicle frame structure |
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Application publication date: 20210302 |