CN119551073A - Frame assembly - Google Patents
Frame assembly Download PDFInfo
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- CN119551073A CN119551073A CN202510112385.9A CN202510112385A CN119551073A CN 119551073 A CN119551073 A CN 119551073A CN 202510112385 A CN202510112385 A CN 202510112385A CN 119551073 A CN119551073 A CN 119551073A
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- plate
- transition
- main longitudinal
- fixing
- mounting hole
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicles, and particularly discloses a vehicle frame assembly, which comprises a main longitudinal beam and a first cross beam group, wherein a first mounting hole is formed in the tail part of the main longitudinal beam along the vehicle length direction, the first cross beam group comprises a first cross beam and two first fixing pieces, each first fixing piece comprises a first fixing plate, a first connecting part and a first supporting part, the first connecting parts and the first supporting parts are arranged on two sides of the first fixing plates along the vehicle width direction, the first connecting parts of the two first fixing pieces are fixedly connected with two ends of the first cross beam respectively, the first fixing plates are arranged in the first mounting holes and fixedly connected with the main longitudinal beam, and the first fixing pieces are cast pieces. In the frame assembly, the first connecting part, the first supporting part and the first fixing plate are cast into an integrated part through a casting process, so that the connection strength between the first connecting part and the first supporting part and the first fixing plate can be improved, the problem of cracking or deformation is avoided, and the bearing capacity of the frame assembly is improved.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a frame assembly.
Background
The engineering vehicle is a professional transportation device for surface mining, and has low cost, heavy load, high working efficiency and other requirements, which are always the targets pursued by customers, wherein the load carrying capacity and the load carrying stability of the engineering vehicle are important points of attention of the customers.
The frame assembly is used as an important component of the engineering vehicle and plays a role in supporting the sprung mass of the whole vehicle. Thus, the load carrying capacity of the frame assembly is a critical factor affecting the load carrying capacity and load carrying stability of the work vehicle.
The existing frame assembly generally comprises a plurality of cross beams and two main longitudinal beams, wherein the two main longitudinal beams are arranged at intervals, the cross beams are arranged between the two main longitudinal beams, and two ends of the cross beams are welded or screwed on the two main longitudinal beams respectively. Because the joint of the cross beam and the main longitudinal beam is usually a high-stress area, the joint of the cross beam and the main longitudinal beam is extremely easy to crack or deform, and the bearing capacity of the frame assembly is affected.
Accordingly, there is a need for a frame assembly that addresses the above-described issues.
Disclosure of Invention
The invention aims to provide a frame assembly for solving the problem that two ends of a cross beam are welded or screwed on two main longitudinal beams respectively in the related art. Because the joint of the cross beam and the main longitudinal beam is usually a high-stress area, the joint of the cross beam and the main longitudinal beam is extremely easy to crack or deform, and the bearing capacity of the frame assembly is affected.
The present invention provides a frame assembly comprising:
The two main longitudinal beams are arranged at intervals along the vehicle width direction, first mounting holes are formed in the tail parts of the main longitudinal beams along the vehicle length direction, and the first mounting holes on the two main longitudinal beams are oppositely arranged along the vehicle width direction;
The first crossbeam group comprises a first crossbeam and two first fixing pieces, wherein the first fixing pieces comprise a first fixing plate, a first connecting portion and a first supporting portion, the first connecting portion and the first supporting portion are arranged on two sides of the first fixing plate along the width direction of the vehicle, the first connecting portion of the two first fixing pieces is fixedly connected with two ends of the first crossbeam respectively, the two first fixing plates are arranged in the two first mounting holes respectively and are in butt joint with the hole walls of the two first mounting holes respectively, the two first fixing plates are fixedly connected with the two main longitudinal beams respectively, and the first fixing pieces are cast pieces.
As a preferable technical scheme of the frame assembly, the first mounting hole comprises a first inner side mounting hole and a first outer side mounting hole, the main longitudinal beam is of a box girder structure, the main longitudinal beam comprises an inner side plate and an outer side plate along the width direction of the vehicle, the first inner side mounting hole is arranged on the inner side plate, and the first outer side mounting hole is arranged on the outer side plate;
The first fixed plate comprises a first outer fixed plate, a first inner fixed plate and a connecting pipe, wherein two ends of the connecting pipe are respectively fixedly connected with the first outer fixed plate and the first inner fixed plate, the first inner fixed plate is positioned in the first inner mounting hole and is abutted to the hole wall of the first inner mounting hole, the first inner fixed plate is fixedly connected with the inner plate, the first outer fixed plate is positioned in the first outer mounting hole and is abutted to the hole wall of the first outer mounting hole, the first outer fixed plate is fixedly connected with the outer plate, the first connecting portion is fixedly connected with the first inner fixed plate, and the first supporting portion is fixedly connected with the first outer fixed plate.
As the preferable technical scheme of the frame assembly, the thickness of the first inner fixed plate is larger than that of the inner side plate and smaller than that of the first connecting portion, and the thickness of the first outer fixed plate is larger than that of the outer side plate and smaller than that of the first supporting portion.
As the preferable technical scheme of the frame assembly, the first inner side mounting hole is trapezoid, and the first outer side mounting hole is trapezoid.
As a preferable technical scheme of the frame assembly, the main longitudinal beam is provided with at least two first mounting holes at intervals along the length direction of the vehicle;
The first beam groups are arranged at least two, the at least two first beam groups are arranged at intervals along the length direction of the vehicle, and the at least two first beam groups correspond to the at least two first mounting holes on the main longitudinal beam one by one.
As a preferable technical scheme of the frame assembly, a second mounting hole is formed in the middle of the main longitudinal beam along the vehicle length direction, and the second mounting holes of the two main longitudinal beams are oppositely arranged along the vehicle width direction;
Still include second crossbeam group, second crossbeam group includes second crossbeam, two second mounting and two transition boards, two the transition board set up respectively in two in the second mounting hole and respectively with the pore wall butt of second mounting hole, two the transition board respectively with two crossbeam rigid coupling, the transition board is provided with the transition hole, two the second mounting is inserted respectively and is located two the transition hole of transition board and respectively with two the transition board rigid coupling, the both ends of second crossbeam respectively with two the second mounting rigid coupling.
As a preferable technical scheme of the frame assembly, the second mounting hole comprises a second inner side mounting hole and a second outer side mounting hole, the main longitudinal beam is of a box beam structure, the main longitudinal beam comprises an inner side plate and an outer side plate along the vehicle width direction, the second inner side mounting hole is arranged on the inner side plate, and the second outer side mounting hole is arranged on the outer side plate;
The transition plate comprises an inner side transition plate and an outer side transition plate, the inner side transition plate is arranged in the second inner side mounting hole and fixedly connected with the inner side plate, the outer side transition plate is arranged in the second outer side mounting hole and fixedly connected with the outer side plate, the transition hole comprises an inner side transition hole and an outer side transition hole, and the inner side transition hole and the outer side transition hole are respectively arranged in the inner side transition plate and the outer side transition plate.
As the preferred technical scheme of frame assembly, the second mounting includes pipe portion and protruding locates inboard go-between and outside go-between of pipe portion, the second mounting inserts and locates the transition hole, inboard go-between be located inboard transition hole and with the pore wall butt in inboard transition hole, inboard go-between with inboard transition board rigid coupling, outside go-between is located outside transition hole and with the pore wall butt in outside transition hole, outside go-between with outside transition board rigid coupling, the second mounting is the casting.
As the preferable technical scheme of the frame assembly, the thickness of the inner connecting ring is larger than that of the inner transition plate, the thickness of the inner transition plate is larger than that of the inner side plate, the thickness of the outer connecting ring is larger than that of the outer transition plate, and the thickness of the outer transition plate is larger than that of the outer side plate.
The lifting beam group comprises a third beam and two lifting seats respectively and fixedly arranged at two ends of the third beam, the two lifting seats are in one-to-one correspondence with the two main longitudinal beams, each lifting seat comprises an inner seat plate, an outer seat plate and a connecting seat plate, the inner seat plate and the outer seat plate are arranged at intervals along the vehicle width direction, and the connecting seat plates are arranged between the inner seat plate and the outer seat plate;
The inner seat plate and the outer seat plate are fixedly connected with the main longitudinal beam respectively, and the abutting length of the inner seat plate and the main longitudinal beam is smaller than that of the outer seat plate and the main longitudinal beam or larger than that of the outer seat plate and the main longitudinal beam along the length direction of the vehicle.
The frame assembly is characterized by further comprising a gantry beam, wherein the gantry beam comprises a bottom beam and two side beams fixedly arranged at two ends of the bottom beam, and support grooves are respectively concavely formed in the opposite surfaces of the two side beams along the width direction of the vehicle;
The heads of the two main longitudinal beams in the vehicle length direction respectively penetrate through the two supporting grooves in the vehicle length direction, and the two main longitudinal beams are respectively fixedly connected with the two side beams.
As the preferable technical scheme of the frame assembly, the gantry beam further comprises a top beam, the top beam is inserted into the upper ends of the two side beams along the vehicle height direction, and the top beam is fixedly connected with the two side beams.
As a preferable technical scheme of the frame assembly, the main longitudinal beam is of a box beam structure, comprises an inner side plate and an outer side plate along the vehicle width direction, and comprises a bottom plate and a top plate along the vehicle height direction;
The main longitudinal beam further comprises a supporting plate, wherein the area, close to the gantry beam, of the top plate extends away from the other main longitudinal beam along the vehicle width direction, two ends of the supporting plate are fixedly connected with the outer side plate and the extending area, along the vehicle width direction, of the top plate respectively, or the area, close to the gantry beam, of the top plate extends towards the other main longitudinal beam along the vehicle width direction, and two ends of the supporting plate are fixedly connected with the extending areas, along the vehicle width direction, of the inner side plate and the top plate respectively.
The beneficial effects of the invention are as follows:
The invention provides a frame assembly, which comprises two main longitudinal beams and a first beam group, wherein the two main longitudinal beams are arranged at intervals along the vehicle width direction, first mounting holes are formed in the tail parts of the main longitudinal beams along the vehicle length direction, the first mounting holes on the two main longitudinal beams are oppositely arranged along the vehicle width direction, the first beam group comprises a first beam and two first fixing pieces, each first fixing piece comprises a first fixing plate, a first connecting part and a first supporting part, the first connecting parts and the first supporting parts are arranged on two sides of the first fixing plates along the vehicle width direction, the first connecting parts of the two first fixing pieces are fixedly connected with two ends of the first beam respectively, the two first fixing plates are arranged in the two first mounting holes respectively and are in butt joint with the hole walls of the two first mounting holes respectively, the two first fixing plates are fixedly connected with the two main longitudinal beams respectively, and the first fixing pieces are cast pieces. In the frame assembly, the first connecting part, the first supporting part and the first fixing plate are cast into an integrated part through a casting process, and then the connecting strength between the first connecting part and the first supporting part and the first fixing plate can be improved, the problem of cracking or deformation is avoided, and the bearing capacity of the frame assembly is improved.
Drawings
FIG. 1 is a schematic view of a frame assembly according to an embodiment of the present invention;
FIG. 2 is an exploded view of a frame assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the primary and secondary stringers according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a first beam set according to an embodiment of the present invention;
FIG. 5 is a second schematic structural view of the first beam set according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of a second beam set according to an embodiment of the present invention;
FIG. 7 is a second schematic structural view of a second beam set according to an embodiment of the present invention;
FIG. 8 is a schematic view of a lifting beam set according to an embodiment of the present invention;
FIG. 9 is a schematic view of a gantry beam according to an embodiment of the present invention;
FIG. 10 is a second schematic view of a gantry beam according to an embodiment of the present invention;
Fig. 11 is an enlarged view of a portion of fig. 10 at A-A.
In the figure:
X, vehicle length direction, Y, vehicle width direction, Z, vehicle height direction;
1. the main longitudinal beam, 11, the inner side plate, 12, the outer side plate, 13, the bottom plate, 14, the top plate, 15, the supporting plate, 16, the first mounting hole, 161, the first inner side mounting hole, 162, the first outer side mounting hole, 17, the second mounting hole, 171, the second inner side mounting hole, 172, the second outer side mounting hole;
2. first beam group 21, first beam 22, first fixing piece 221, first fixing plate 2211, first outer fixing plate 2212, first inner fixing plate 2213, connecting pipe 222, first connecting part 223, first supporting part;
3. The second beam group, 31, second beams, 32, second fixing pieces, 321, pipe parts, 322, inner connecting rings, 323, outer connecting rings, 33, transition plates, 331, inner transition plates, 332, outer transition plates, 333, transition holes, 3331, inner transition holes, 3332, outer transition holes;
4. Lifting beam group, 41, third beam, 42, lifting seat, 421, inner seat board, 422, outer seat board, 423, connecting seat board;
5. The frame comprises a gantry beam, a bottom beam, a 52, a side beam, 521, a supporting groove, 53, a top beam, 54, a reinforcing rib plate, 55 and a corner plate;
6. And a secondary longitudinal beam.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1 to 11, the present embodiment provides a frame assembly, which includes a main girder 1 and a first beam group 2, the main girder 1 is provided with two main girders 1 arranged at intervals along a vehicle width direction Y, first mounting holes 16 are provided at the tail portions of the main girders 1 along the vehicle length direction X, the first mounting holes 16 on the two main girders 1 are oppositely arranged along the vehicle width direction Y, the first beam group 2 includes a first beam 21 and two first fixing pieces 22, the first fixing pieces 22 include a first fixing plate 221, a first connecting portion 222 and a first supporting portion 223, the first connecting portion 222 and the first supporting portion 223 are arranged at two sides of the first fixing plate 221 along the vehicle width direction Y, the first connecting portion 222 of the two first fixing pieces 22 are fixedly connected with two ends of the first beam 21, the two first fixing plates 221 are respectively arranged in the two first mounting holes 16 and respectively abut against the hole walls of the two first mounting holes 16, the two first fixing plates 221 are fixedly connected with the two main girders 1, and the first fixing pieces 22 are respectively. In the frame assembly, compared with the fact that the first connecting part 222 and the first supporting part 223 are directly fixedly arranged on the main longitudinal beam 1 through welding or screwing, the first connecting part 222, the first supporting part 223 and the first fixing plate 221 are cast into an integral part through a casting process, and therefore the connecting strength between the first connecting part 222 and the first supporting part 223 and the first fixing plate 221 can be improved, the problem of cracking or deformation is avoided, and the bearing capacity of the frame assembly is improved.
Specifically, the first fixing plate 221 and the main girder 1 are fixed by welding therebetween.
Optionally, a reinforcing rib is provided between the first supporting part 223 and the first fixing plate 221, further improving the connection strength between the first supporting part 223 and the first fixing plate 221.
Optionally, the first connecting portion 222 is of a circular tube structure, the first beam 21 is of a circular tube structure, the first connecting portion 222 is partially inserted into the first beam 21, and the first connecting portion 222 is welded and fixed with the first beam 21.
As shown in fig. 3 to 5, alternatively, the main girder 1 includes an inner side panel 11 and an outer side panel 12 along the vehicle width direction Y, and includes a bottom plate 13 and a top plate 14 along the vehicle height direction Z, the inner side panel 11, the outer side panel 12, the bottom plate 13 and the top plate 14 are surrounded to form a box girder structure, the first mounting hole 16 includes a first inner side mounting hole 161 and a first outer side mounting hole 162, the inner side panel 11 is provided with the first inner side mounting hole 161, the outer side panel 12 is provided with the first outer side mounting hole 162, the first fixing plate 221 includes a first outer fixing plate 2211, a first inner fixing plate 2212 and a connecting pipe 2213, both ends of the connecting pipe 2213 are fixedly connected with the first outer fixing plate 2211 and the first inner fixing plate 2212, the first inner fixing plate 2212 is positioned in the first inner side mounting hole 161 and is abutted to the wall of the first inner side mounting hole 161, the first outer fixing plate 2211 is positioned in the first outer side mounting hole 162 and is abutted to the wall of the first outer side mounting hole 162, the first outer fixing plate 12 is fixedly connected with the first support plate 222, and the first outer fixing plate 222 is fixedly connected with the first support portion 223. In this embodiment, the first inner fixing plate 2212 is located in the first inner mounting hole 161, and the peripheral wall of the first inner fixing plate 2212 and the hole wall of the first inner mounting hole 161 form a groove, and the groove formed between the first inner fixing plate 2212 and the inner side plate 11 is welded by welding, so that the width of the welding seam between the first inner fixing plate 2212 and the inner side plate 11 can be increased, and the connection strength between the first inner fixing plate 2212 and the inner side plate 11 is further improved. Specifically, the peripheral wall of the first inner fixing plate 2212 abuts against the hole wall of the first inner mounting hole 161, and thus the problem of the strength of the inner panel 11 being lowered due to the provision of the first inner mounting hole 161 can be avoided.
Optionally, the first outer fixing plate 2211 is located in the first outer mounting hole 162, and the peripheral wall of the first outer fixing plate 2211 forms a groove with the hole wall of the first outer mounting hole 162, and the groove formed between the first outer fixing plate 2211 and the outer side plate 12 is welded by welding, so that the welding seam width between the first outer fixing plate 2211 and the outer side plate 12 can be increased, and the connection strength between the first outer fixing plate 2211 and the outer side plate 12 is further improved. Specifically, the peripheral wall of the first outer fixing plate 2211 abuts against the wall of the first outer mounting hole 162, and thus the problem of the strength of the outer plate 12 being lowered due to the provision of the first outer mounting hole 162 can be avoided.
Alternatively, the thickness of the first inner fixed plate 2212 is greater than the thickness of the inner side plate 11 and less than the wall thickness of the first connection part 222, and the thickness of the first outer fixed plate 2211 is greater than the thickness of the outer side plate 12 and less than the wall thickness of the first support part 223. In the present embodiment, the thickness of the first connecting portion 222 is a, the thickness of the first inner fixing plate 2212 is b, the thickness of the inner side plate 11 is c, a > b > c, and compared with the case that the first connecting portion 222 is directly transited to the inner side plate 11, the first inner fixing plate 2212 is added between the first connecting portion 222 and the inner side plate 11, so that the thickness variation is more gentle, and the influence of the stress at the thickness variation position can be relieved. The strength of the frame assembly is effectively improved.
The thickness of the first supporting portion 223 is d, the thickness of the first outer fixing plate 2211 is e, the thickness of the outer side plate 12 is f, d > e > f, and compared with the case that the first supporting portion 223 is directly transited to the outer side plate 12, the first outer fixing plate 2211 is added between the first supporting portion 223 and the outer side plate 12, so that the thickness change is more gentle, and the influence of the stress at the thickness change position can be relieved. The strength of the frame assembly is effectively improved.
Alternatively, the first inner mounting hole 161 has a trapezoid shape, and the first outer mounting hole 162 has a trapezoid shape. In this embodiment, the first inner fixing plate 2212 corresponding to the first inner mounting hole 161 is trapezoidal, and the first outer fixing plate 2211 corresponding to the first outer mounting hole 162 is trapezoidal. Specifically, the length of the bottom wall of the first inner side mounting hole 161 near the bottom plate 13 is longer than the length of the top wall near the top plate 14, which can improve the supporting ability of the main girder 1 corresponding to the first inner solid plate 2212, and the length of the bottom wall of the first outer side mounting hole 162 near the bottom plate 13 is longer than the length of the top wall near the top plate 14, which can improve the supporting ability of the main girder 1 corresponding to the first outer solid plate 2211.
Optionally, the main longitudinal beam 1 is provided with at least two first mounting holes 16 at intervals along the vehicle length direction X, the first cross beam groups 2 are provided with at least two first cross beam groups 2 at intervals along the vehicle length direction X, and the at least two first cross beam groups 2 are in one-to-one correspondence with the at least two first mounting holes 16 on the main longitudinal beam 1. In this embodiment, at least two first beam groups 2 are used for assembling with the rear axle to support the entire rear axle.
As shown in fig. 3, 6 and 7, optionally, the middle part of the main longitudinal beam 1 along the vehicle length direction X is provided with a second mounting hole 17, the second mounting holes 17 of the two main longitudinal beams 1 are oppositely arranged along the vehicle width direction Y, the frame assembly further comprises a second beam group 3, the second beam group 3 comprises a second beam 31, two second fixing pieces 32 and two transition plates 33, the two transition plates 33 are respectively arranged in the two second mounting holes 17 and respectively abutted with the hole walls of the second mounting holes 17, the two transition plates 33 are respectively fixedly connected with the two beams, the transition plates 33 are provided with transition holes 333, the two second fixing pieces 32 are respectively inserted into the transition holes 333 of the two transition plates 33 and respectively fixedly connected with the two transition plates 33, and two ends of the second beam 31 are respectively fixedly connected with the two second fixing pieces 32. In this embodiment, the transition plate 33 and the main girder 1 are welded and fixed by a groove welding process, and the transition plate 33 and the second fixing member 32 are fixed by a groove welding process. Since the second cross member group 3 is provided in the middle of the main longitudinal beam 1 in the vehicle length direction X, the second cross member group 3 only plays a role in fixing the two main longitudinal beams 1, so that the stress of the second cross member group 3 is smaller than that of the first cross member group 2, and therefore, in order to reduce the manufacturing cost, the second fixing member 32 and the transition plate 33 can be manufactured separately.
Alternatively, the second mounting hole 17 is a rectangular hole, and the transition plate 33 is a rectangular hole adapted to the second mounting hole 17.
Optionally, the second mounting hole 17 includes a second inner mounting hole 171 and a second outer mounting hole 172, the inner plate 11 is provided with the second inner mounting hole 171, the outer plate 12 is provided with the second outer mounting hole 172, the transition plate 33 includes an inner transition plate 331 and an outer transition plate 332, the inner transition plate 331 is disposed in the second inner mounting hole 171 and fixedly connected with the inner plate 11, the outer transition plate 332 is disposed in the second outer mounting hole 172 and fixedly connected with the outer plate 12, the transition hole 333 includes an inner transition hole 3331 and an outer transition hole 3332, and the inner transition hole 3331 and the outer transition hole 3332 are disposed in the inner transition plate 331 and the outer transition plate 332, respectively, and are coaxially disposed. In the present embodiment, the second fixing member 32 is disposed through the corresponding inner transition hole 3331 and outer transition hole 3332 and is fixedly connected to the inner transition plate 331 and the outer transition plate 332, respectively. The inner transition plate 331 is disposed in the second inner mounting hole 171 and fixedly connected to the inner plate 11, and the outer transition plate 332 is disposed in the second outer mounting hole 172 and fixedly connected to the outer plate 12, which can improve the overall strength of the transition plate 33 and prevent the relative position between the second fixing member 32 and the corresponding main girder 1 from being changed.
Optionally, the second fixing member 32 includes a pipe portion 321, an inner connecting ring 322 and an outer connecting ring 323 protruding from the pipe portion 321, the second fixing member 32 is inserted into the transition hole 333, the inner connecting ring 322 is located in the inner transition hole 3331 and abuts against the wall of the inner transition hole 3331, the inner connecting ring 322 is fixedly connected with the inner transition plate 331, the outer connecting ring 323 is located in the outer transition hole 3332 and abuts against the wall of the outer transition hole 3332, the outer connecting ring 323 is fixedly connected with the outer transition plate 332, and the second fixing member 32 is a casting member. In this embodiment, compared to directly fixing the pipe portion 321 to the transition plate 33, the first fixing member 22 further includes an inner connecting ring 322 and an outer connecting ring 323 protruding from the pipe portion 321, and the inner connecting ring 322 and the outer connecting ring 323 are respectively fixed to the inner transition plate 331 and the outer transition plate 332, so that the region where the first fixing member 22 is most stressed is concentrated in the connecting region between the inner connecting ring 322 and the pipe portion 321 and the connecting region between the outer connecting ring 323 and the pipe portion 321, and the connecting strength between the main longitudinal beam 1 and the second cross beam 31 can be improved due to the first fixing member 22 being an integrally molded cast member.
Optionally, a chamfer is provided at the connection of the inner connecting ring 322 and the tube portion 321, and a chamfer is provided at the connection of the outer connecting ring 323 and the tube portion 321.
Alternatively, the thickness of the inner connecting ring 322 is greater than the thickness of the inner transition plate 331, the thickness of the inner transition plate 331 is greater than the thickness of the inner plate 11, the thickness of the outer connecting ring 323 is greater than the thickness of the outer transition plate 332, and the thickness of the outer transition plate 332 is greater than the thickness of the outer plate 12. In the present embodiment, the thickness of the inner connecting ring 322 is a, the thickness of the inner transition plate 331 is B, the thickness of the inner plate 11 is c, and a > B > c, which makes the thickness variation more gentle and avoids the problem of stress concentration compared with the case of directly fixing the inner connecting ring 322 to the inner plate 11.
As shown in fig. 8, optionally, the frame assembly further includes a lifting beam set 4, where the lifting beam set 4 includes a third beam 41 and two lifting seats 42 respectively fixed at two ends of the third beam 41, the two lifting seats 42 are in one-to-one correspondence with the two main stringers 1, the lifting seats 42 include an inner seat plate 421, an outer seat plate 422 and a connecting seat plate 423, the inner seat plate 421 and the outer seat plate 422 are disposed at intervals along the vehicle width direction Y, the connecting seat plate 423 is disposed between the inner seat plate 421 and the outer seat plate 422, the inner seat plate 421 and the outer seat plate 422 are respectively fixedly connected with the main stringers 1, and the abutting length of the inner seat plate 421 and the main stringers 1 is smaller than the abutting length of the outer seat plate 422 and the main stringers 1, or the abutting length of the inner seat plate 421 and the main stringers 1 is greater than the abutting length of the outer seat plate 422 and the main stringers 1. In the present embodiment, the contact position between the inner seat plate 421 and the main side member 1 is welded, and the contact position between the outer seat plate 422 and the main side member 1 is welded. Taking the example in which the contact length between the inner seat plate 421 and the main side member 1 is smaller than the contact length between the outer seat plate 422 and the main side member 1, the surface of the inner panel 11 in the vehicle longitudinal direction X, which contacts the main side member 1, is the inner contact surface, the surface of the outer panel 12 in the vehicle longitudinal direction X, which contacts the main side member 1, is the outer contact surface, and the both ends of the inner contact surface are not aligned with the both ends of the outer contact surface in the vehicle width direction Y, respectively, so this arrangement can increase the maximum supporting force of the main side member 1 on the lift seat 42.
As shown in fig. 9 to 11, the gantry beam 5 is required to not only bear the weight of the engine, but also support the front axle. Therefore, the connection stability of the gantry beam 5 and the main longitudinal beam 1 is important, optionally, the frame assembly further comprises a gantry beam 5, the gantry beam 5 comprises a bottom beam 51 and two side beams 52 fixedly arranged at two ends of the bottom beam 51, the opposite surfaces of the two side beams 52 along the vehicle width direction Y are respectively provided with a concave supporting groove 521, the heads of the two main longitudinal beams 1 along the vehicle length direction X respectively penetrate through the two supporting grooves 521 along the vehicle length direction X, and the two main longitudinal beams 1 are respectively fixedly connected with the two side beams 52. In the present embodiment, the opening of the support groove 521 is oriented in the vehicle width direction Y, and the two side members 1 are fitted into the two support grooves 521, so that the stability of the connection between the two side members 52 and the two side members 1 can be improved.
Optionally, the gantry beam 5 further includes a plurality of corner plates 55, and the plurality of corner plates 55 are disposed between the main longitudinal beam 1 and the side member 52 and fixedly connected with the main longitudinal beam 1 and the side member 52, respectively.
Optionally, the two side beams 52 and the bottom beam 51 of the gantry beam 5 are enclosed to form a U shape, where two bending areas of the gantry beam 5 are located on the two side beams 52, and a stress concentration area of the gantry beam 5 is also located on the two bending areas, and this arrangement avoids overlapping between two connection positions of the two side beams 52 and the bottom beam 51 and the two bending areas, so as to further improve the strength of the gantry beam 5.
Optionally, the gantry beam 5 further includes a top beam 53, the top beam 53 is inserted into the upper ends of the two side beams 52 along the vehicle height direction Z, and the top beam 53 is fixedly connected with the two side beams 52. In this embodiment, the top beam 53 is a box beam structure, and a plurality of reinforcing rib plates 54 are arranged inside the top beam, so that the overall bearing capacity is improved, and the beam strength is improved. The top cross beam 53 is inserted into the upper ends of the two side beams 52 along the vehicle height direction Z, the top cross beam 53 is fixedly connected with the two side beams 52, the strength of the gantry beam 5 is improved, and the deformation of the gantry beam 5 is avoided.
Optionally, the bottom beam 51 and the side beam 52 are both box beam structures, and in order to further improve the strength of the bottom beam 51 and the side beam 52, reinforcing rib plates 54 are further arranged in the bottom beam 51 and the side beam 52, and the reinforcing rib plates are arranged to improve the strength of the gantry beam 5 while reducing the overall weight of the gantry beam 5.
Optionally, the main girder 1 further comprises a support plate 15, wherein the area of the top plate 14 close to the portal girder 5 extends away from the other main girder 1 along the vehicle width direction Y, two ends of the support plate 15 are fixedly connected with the extending areas of the outer side plate 12 and the top plate 14 along the vehicle width direction Y respectively, or the area of the top plate 14 close to the portal girder 5 extends close to the other main girder 1 along the vehicle width direction Y respectively, and two ends of the support plate 15 are fixedly connected with the extending areas of the inner side plate 11 and the top plate 14 along the vehicle width direction Y respectively. In this embodiment, in the frame assembly, the load of the main girder 1 near the area of the gantry beam 5 is larger, so as to avoid the deformation of the main girder 1 in the area, and further, the top plate 14 of the main girder 1 extends along the vehicle width direction Y, and further, the supporting plate 15 plays a supporting role on the top plate 14, so as to improve the bearing capacity of the main girder 1. Specifically, the support plate 15 is a wedge plate. Two adjacent side walls of the support plate 15 are respectively attached to the extension region of the top plate 14 and the opposite inner side plate 11 or outer side plate 12.
Optionally, the frame assembly further includes a sub-side member 6, and the sub-side member 6 and the main side member 1 are located on both sides of the gantry beam 5 in the vehicle length direction X, respectively.
Alternatively, the secondary side member 6 and the primary side member 1 are fixedly connected to each other.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510112385.9A CN119551073A (en) | 2025-01-24 | 2025-01-24 | Frame assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510112385.9A CN119551073A (en) | 2025-01-24 | 2025-01-24 | Frame assembly |
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| Publication Number | Publication Date |
|---|---|
| CN119551073A true CN119551073A (en) | 2025-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510112385.9A Pending CN119551073A (en) | 2025-01-24 | 2025-01-24 | Frame assembly |
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| CN (1) | CN119551073A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228642A (en) * | 2009-03-27 | 2010-10-14 | Mazda Motor Corp | Lower vehicle-body structure of vehicle |
| CN205087025U (en) * | 2015-10-09 | 2016-03-16 | 潍柴动力股份有限公司 | Mining car frame and mine car that uses this structure frame |
| CN114655312A (en) * | 2022-03-28 | 2022-06-24 | 东风柳州汽车有限公司 | Frame cross beam and automobile with same |
| CN219687434U (en) * | 2023-03-06 | 2023-09-15 | 一汽解放汽车有限公司 | Frame cross beam and vehicle |
| CN118163861A (en) * | 2024-05-15 | 2024-06-11 | 临工重机股份有限公司 | Frame assembly |
-
2025
- 2025-01-24 CN CN202510112385.9A patent/CN119551073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010228642A (en) * | 2009-03-27 | 2010-10-14 | Mazda Motor Corp | Lower vehicle-body structure of vehicle |
| CN205087025U (en) * | 2015-10-09 | 2016-03-16 | 潍柴动力股份有限公司 | Mining car frame and mine car that uses this structure frame |
| CN114655312A (en) * | 2022-03-28 | 2022-06-24 | 东风柳州汽车有限公司 | Frame cross beam and automobile with same |
| CN219687434U (en) * | 2023-03-06 | 2023-09-15 | 一汽解放汽车有限公司 | Frame cross beam and vehicle |
| CN118163861A (en) * | 2024-05-15 | 2024-06-11 | 临工重机股份有限公司 | Frame assembly |
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