CN110341813B - Lightweight boxcar assembly - Google Patents
Lightweight boxcar assembly Download PDFInfo
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- CN110341813B CN110341813B CN201910654921.2A CN201910654921A CN110341813B CN 110341813 B CN110341813 B CN 110341813B CN 201910654921 A CN201910654921 A CN 201910654921A CN 110341813 B CN110341813 B CN 110341813B
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- bottom plate
- carriage
- plate
- plate body
- notch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/02—Platforms; Open load compartments
- B62D33/023—Sideboard or tailgate structures
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a lightweight wagon compartment assembly, which comprises a front compartment plate, a rear compartment plate, a side compartment plate and a compartment bottom plate, wherein the side compartment plate comprises a side board boundary beam and a side board body which is arranged in the side board boundary beam in a surrounding mode, a transition connecting block is further arranged between the side board boundary beam and the side board body, the cross section of the transition connecting block is in an inverted U shape, a containing groove which is suitable for the side board body is formed in the top of the transition connecting block, the side edge of the side board body stretches into the containing groove, the side edge of the side board body is welded and fixed with the inner side wall of the transition connecting block, and the transition connecting block is welded and fixed with the side wall of the side board boundary beam. The remarkable effects are as follows: the base material is prevented from being weakened during welding, and the overall strength of the carriage bottom plate is improved; the deformation resistance of the carriage bottom plate is improved.
Description
Technical Field
The invention relates to the technical field of carriages for automobiles, in particular to a lightweight wagon carriage assembly.
Background
The existing truck carriage consists of a bottom plate welded on a carriage bottom plate framework, a front plate, a rear plate and side plates on the left side and the right side, and in order to improve the firmness and the bearing capacity of the carriage, all the panel materials of the carriage are often required to be made into a solid all-steel structure or a steel-wood mixed structure, so that the weight of the existing truck carriage is large, the loading capacity of a vehicle is seriously influenced, and the energy consumption is increased. Therefore, the weight reduction of the wagon is the mainstream of the current wagon.
In the prior art, a boxcar with an aluminum structure is proposed, and for the aluminum boxcar, although energy can be saved, if the structure in the prior art is adopted, the longer the boxcar is, the weaker the strength and rigidity of the boxcar structure are, and the bearing capacity is obviously reduced, so that the rigidity is increased to be an effective way for meeting the geometric dimension of the boxcar. However, in the traditional process, the rigidity enhancement mode of the aluminum carriage bottom plate is to weld a stiffening beam at the bottom of the bottom plate, but the welding process can generate heat, the strength of the base metal is lost, and the whole strength of the carriage bottom plate is poor. In addition, in the traditional carriage curb plate structure with curb plate body welding in the surface of curb plate boundary beam, but this kind of mode can form the horizontal power of tearing on the curb plate body for the side carriage board is very easily damaged by the impact force of goods, and life is not long.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a lightweight wagon box assembly, which not only can improve the overall structural strength of a wagon box, but also can avoid various defects caused by the traditional welding process by improving the structure of a side wagon box and adopting a bottom plate with a reinforcing beam formed by integral extrusion and improving the connecting structure of the reinforcing beam and a bottom plate longitudinal beam.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a lightweight boxcar assembly, its key lies in: including preceding carriage board, back carriage board, the side carriage board and the carriage bottom plate that the symmetry set up of aluminium system, its characterized in that: the side carriage plate comprises a side plate boundary beam and a side plate body which is arranged in the side plate boundary beam in a surrounding mode, a transition connecting block is further arranged between the side plate boundary beam and the side plate body, the cross section of the transition connecting block is in an inverted U shape, a containing groove which is suitable for the side plate body is formed in the top of the transition connecting block, the side edge of the side plate body stretches into the containing groove, the side edge of the side plate body is fixedly welded with the inner side wall of the transition connecting block, and the transition connecting block is fixedly welded with the side wall of the side plate boundary beam;
the carriage bottom plate comprises a bottom plate cross beam and a bottom plate longitudinal beam which are connected with each other, a first aluminum bottom plate body and a second aluminum bottom plate body are arranged above the bottom plate cross beam and the bottom plate longitudinal beam, a reinforcing beam is integrally formed at the bottom of the first bottom plate body in an extrusion mode, the reinforcing beam is arranged in parallel with the bottom plate cross beam, a plurality of second bottom plate bodies are arranged between two adjacent first bottom plate bodies, and the first bottom plate bodies and the second bottom plate bodies and the two adjacent second bottom plate bodies are fixedly connected through friction welding;
two sides of the lower part of the bottom plate longitudinal beam respectively extend outwards to form flanges; the reinforcing beam is provided with a notch which is matched with the size of the bottom plate longitudinal beam, the bottom plate longitudinal beam is clamped in the notch, the lower surface of the reinforcing beam is flush with the lower surface of the flange, the lower surface of the reinforcing beam is welded and fixed with the lower surface of the flange in a friction welding mode, and the rest of contact parts of the reinforcing beam and the bottom plate longitudinal beam are welded and fixed in an argon arc welding mode.
Further, the cross section of the first bottom plate body and the reinforcing beam is of a T-shaped structure, wherein the first bottom plate body forms a transverse portion of the T-shaped structure, and the reinforcing beam forms a vertical portion of the T-shaped structure.
Further, the first bottom plate body and the second bottom plate body are both of double-layer aluminum plate structures, supporting walls are formed between the double-layer aluminum plates, and the supporting arms divide the first bottom plate body and the second bottom plate body into multi-cavity structures.
Further, the first bottom plate body and the second bottom plate body both adopt a multi-cavity structure.
Further, a plurality of stand columns are oppositely arranged on two sides of a carriage bottom plate between the front carriage plate and the rear carriage plate respectively, side carriage plates are detachably connected between the front carriage plate and the stand columns, between two adjacent stand columns and between the stand columns and the rear carriage plate, guard rails are arranged above the side carriage plates, and the front side and the rear side of the guard rails are respectively connected with the front carriage plate and the stand columns/two adjacent stand columns/stand columns and the rear carriage plate; and a limiting rod is also connected between the two upright posts which are oppositely arranged, and the limiting rod is connected to the top of the upright post.
Further, the bottom of the side carriage plate is hinged with the carriage bottom plate through a hinge, and the top of the side carriage plate is connected with the front carriage plate or the upright post or the rear carriage plate through a mode of a buckle and a clamp.
Furthermore, jacks are formed in the tops of the guard rails, a canopy support rod is arranged between the two guard rails in a crossing mode, and the bottoms of the canopy support rods are inserted into the jacks.
Further, two sides of the bottom of the carriage bottom plate are respectively connected with an anti-collision frame and a mud guard.
Further, the notch is in an inverted T shape, the longitudinal part of the notch is adapted to the bottom plate longitudinal beam above the flange, the bottom plate longitudinal beam below the flange protrudes out of the lower surface of the reinforcing cross beam, and the transverse part of the notch is adapted to the flange.
Further, a relief groove adapted to the transverse portion of the notch is formed in the flange, and when the bottom plate longitudinal beam is clamped in the notch, the inner wall of the relief groove is in contact with the inner wall of the transverse portion of the notch.
The invention has the remarkable effects that:
1. compared with the traditional welding mode of the reinforcing beam and the bottom plate, the scheme adopts the integral extrusion molding of the reinforcing beam and the bottom plate, so that the base material is prevented from being weakened during welding, and the overall strength of the carriage bottom plate is improved;
2. meanwhile, the carriage bottom plate adopts a double-layer aluminum plate structure, so that the deformation resistance of the carriage bottom plate is improved under the condition of using the raw materials with the same volume;
3. the bottom plate longitudinal beam and the flange structure which are integrally extruded are clamped with the notch formed in the reinforcing beam, then the bottom of the reinforcing beam and the bottom of the bottom plate longitudinal beam are connected and fixed by friction welding, and other joints are welded in a traditional mode, so that the influence of welding heat on the material strength in the traditional connecting structure is reduced, and the integral strength of the bottom plate structure is effectively enhanced;
4. the side plate body stretches into the transition connecting block to be welded in the side plate body, and then the transition connecting block is connected with the side plate boundary beam, so that the transverse tearing force of the side plate and the boundary beam is changed into the longitudinal pulling force, and the structural strength and the service life of the side plate of the carriage are improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a right side view of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is an enlarged partial schematic view of C in FIG. 5;
FIG. 8 is a B-B cross-sectional view of FIG. 5;
FIG. 9 is a bottom view of the present invention;
FIG. 10 is a schematic view of the floor;
FIG. 11 is a cross-sectional view of FIG. 10;
FIG. 12 is an enlarged partial schematic view of D of FIG. 11;
FIG. 13 is a schematic view of the connection structure of the floor stringers to the reinforcement beams;
FIG. 14 is an exploded view of FIG. 13;
FIG. 15 is a schematic view of a stiffening beam at the gap;
fig. 16 is a cross-sectional view of the floor rail.
Detailed Description
The following describes the embodiments and working principles of the present invention in further detail with reference to the drawings.
As shown in fig. 1 to 16, a lightweight wagon compartment assembly comprises a front compartment plate 1, a rear compartment plate 2, symmetrically arranged side compartment plates 3 and a compartment bottom plate 4, wherein a plurality of stand columns 5 are respectively and oppositely arranged on two sides of the compartment bottom plate 4 between the front compartment plate 1 and the rear compartment plate 2, the side compartment plates 3 are detachably connected between the front compartment plate 1 and the stand columns 5, between two adjacent stand columns 5 and between the stand columns 5 and the rear compartment plate 2, guard rails 6 are respectively arranged above the side compartment plates 3, and front and rear sides of the guard rails 6 are respectively connected between the front compartment plate 1 and the stand columns 5 or between two adjacent stand columns 5 or between the stand columns 5 and the rear compartment plate 2. A limiting rod 7 is also connected between the two upright posts 5 which are oppositely arranged, and the limiting rod 7 is connected to the top of the upright post 5. Two sides of the bottom of the carriage bottom plate 4 are respectively connected with an anti-collision frame 10 and a mud guard 11.
Regarding the front cabin board 1 and the rear cabin board 2:
the front carriage plate 1 and the rear carriage plate 2 are identical in structure and are composed of an aluminum frame structure which is adaptive to the cross section shape of the carriage and a double-layer aluminum plate arranged in the frame structure; therefore, the aluminum alloy material has better deformation resistance under the condition of using the aluminum alloy material with the same volume. The front compartment plate 1 and the rear compartment plate 2 are mounted and fixed in a conventional manner, and will not be described here.
The mounting and locking structure of the rear compartment plate 2 is not limited to the illustrated shape.
Regarding the side deck boards 3:
the bottom of the side carriage plate 3 is hinged with the carriage bottom plate 4 through a hinge 8, and the top of the side carriage plate 3 is connected with the front carriage plate 1 or the upright post 5 or the rear carriage plate 2 through a buckle and a clamp mode. The top of each guard rail 6 is provided with a jack, a canopy support rod 9 is arranged between the two guard rails 6 in a crossing mode, and the bottom of each canopy support rod 9 is inserted into the jack.
As shown in fig. 7, in this example, the side carriage plate includes a side plate boundary beam 31 and a side plate body 32 enclosed in the side plate boundary beam 31, a transition connection block 33 is further disposed between the side plate boundary beam 31 and the side plate body 32, the cross section of the transition connection block 33 is in an inverted U-shaped structure, a containing groove (not shown) adapted to the side plate body 32 is formed at the top of the transition connection block 33, the side edge of the side plate body 32 extends into the containing groove, the side edge of the side plate body 32 is welded and fixed with the inner side wall of the transition connection block 33, the transition connection block 33 is covered on the upper portion of the side plate boundary beam 31, and the transition connection block 33 is fixedly connected with two side walls of the side plate boundary beam 31.
In the conventional technology, the side plate body 32 and the side plate edge beam 31 are connected by welding the side plate body 32 to the surface of the side plate edge beam 31, but this way forms a transverse tearing force on the side plate body 32; the side plate body 32 is stretched into the transition connecting block 33 and welded therein, and then the transition connecting block 32 is connected with the side plate boundary beam 33, so that the transverse tearing force of the side plate and the boundary beam is changed into the longitudinal pulling force, and the structural strength and the deformation resistance of the side plate 3 of the carriage are improved.
Regarding the floor 4:
referring to fig. 10 to 16, in this example, the cabin floor 4 includes a floor side beam 407, and a floor longitudinal beam 401 and a floor cross beam 402 connected inside the floor side beam 407, where the floor longitudinal beam 401, the floor cross beam 402, and the floor side beam 407 form a rectangular frame structure (in other embodiments, may also form other polygons, etc.), where the floor longitudinal beam 401 is disposed along a length direction of the cabin, a first floor body 403 and a second floor body 404 are laid on the rectangular frame structure, an aluminum alloy material is integrally extruded at a bottom of the first floor body 403 to form a reinforcement beam 405, the reinforcement beam 405 is parallel to the floor cross beam 402, a plurality of second floor bodies 404 are disposed between two adjacent first floor bodies 403, and friction welding and fixed connection are adopted between the first floor body 403 and the second floor bodies 404 and between two adjacent second floor bodies 404. It will be appreciated that, in other embodiments, the second bottom plate bodies 404 disposed between the first bottom plate bodies 403 may be any number between 0 and N, that is, if the loading capacity of the vehicle cabin is large, the reinforcement beams 405 are disposed more densely, the vehicle cabin bottom plate 4 may be formed by sequentially splicing the first bottom plate bodies 403, and if the loading capacity is small, the setting interval of the reinforcement beams 405 is increased, so that the second bottom plate bodies 404 belong to unnecessary components.
The stiffening beam 405 and the carriage bottom plate 4 are welded in the prior art, and the stiffening beam 405 and the carriage bottom plate 4 are integrally extruded to form, so that the base metal is prevented from being weakened after welding, and meanwhile, the production mode of integrally extruding is adopted, so that the process steps are reduced, and the production cost is reduced.
Because the deformation resistance of the double-layer aluminum plate structure is greater than that of the single-layer steel plate when the same volume of raw materials are used, the first bottom plate body 403 and the second bottom plate body 404 in this example both adopt double-layer aluminum plate structures, so that the deformation resistance of the carriage bottom plate 4 is enhanced.
Regarding the floor stringer 401:
two sides of the lower part of the bottom plate longitudinal beam 401 respectively extend outwards to form flanges 401a; the bottom plate longitudinal beam 401 and the flange 401a are integrally extruded and formed by adopting aluminum alloy, and the bottom plate longitudinal beam 401 adopts a multi-cavity structure so as to enhance deformation resistance.
Further, the floor stringer 401 has four cavities, and the height of the cavities on both sides of the upper side is greater than that of the cavities on both sides of the lower side, and the separation of the cavities on both sides of the upper and lower sides is adapted to the forming position of the flange 401 a.
Regarding the connection between the floor stringers 401 and the reinforcement beams 405:
the reinforcing beam 405 is provided with a notch 406 adapted to the bottom plate longitudinal beam 401, the notch 406 is in an inverted T shape, a longitudinal portion of the notch 406 is adapted to the bottom plate longitudinal beam 401 above the flange 401a, the bottom plate longitudinal beam 401 below the flange 401a protrudes from the lower surface of the reinforcing beam 405, a transverse portion of the notch 406 is adapted to the flange 401a, and when the bottom plate longitudinal beam 401 is clamped in the notch 406 formed in the reinforcing beam 405, the lower surface of the reinforcing beam 405 is flush with the lower surface of the flange 401a, thereby meeting the requirement of a large plane required by friction welding. Therefore, the lower surface of the reinforcement beam 405 and the lower surface of the flange 401a are welded and fixed by friction welding, and the rest of the contact part between the reinforcement beam 405 and the floor longitudinal beam 401 is welded and fixed by argon arc welding.
The traditional bottom plate longitudinal beam 401 and the bottom plate transverse beam 402 are welded by argon arc welding, triangular blocks are added for reinforcement at the defects of strength, the construction process is complex, the material strength can be changed when the welding is heated, and the connection strength is limited. In this embodiment, the first base plate body 403 with the reinforcing beam 405 and the base plate longitudinal beam 401 with the flange 401a which are integrally extruded are adopted to perform structural clamping, and the friction welding part is added to enhance the overall strength of the base plate, so that the influence of heat of the traditional welding mode on the strength of the base material is reduced.
Preferably, the flange 401a is provided with a relief groove 401b corresponding to the transverse portion of the notch 406, and when the bottom plate longitudinal beam 401 is clamped in the notch 406, the inner wall of the relief groove 401b contacts with the inner wall of the transverse portion of the notch 406, so that friction welding is facilitated.
It should be understood that the connection between the reinforcement beam 405 and the floor stringer 402 is not limited to the floor 4, and other frame-type connection structures, such as those required to connect the cross beam to the stringer, may be used.
In this example, a supporting step 407a is formed on a side of the floor side beam 407 near the cabin, and the supporting step 407a is used for supporting the first floor body 403 and the second floor body 404; a supporting step 407b is formed on one side of the carriage far away from the floor side beam 407, and the supporting step 407b is used for supporting the side carriage plate 3, so as to realize the closed connection of the side carriage plate 3 and the carriage floor 4.
In the embodiment, compared with the traditional welding mode of the reinforcing beam 405 and the bottom plate 4, the reinforcing beam and the bottom plate are integrally extruded and formed, so that the base material is prevented from being weakened during welding, and the overall strength of the carriage bottom plate is improved; meanwhile, the carriage bottom plate 4 adopts a double-layer aluminum plate structure, and under the condition of using the raw materials with the same volume, the deformation resistance of the carriage bottom plate 4 is improved.
The technical scheme provided by the invention is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. The utility model provides a lightweight boxcar assembly, includes preceding carriage board, back carriage board, the side carriage board and the carriage bottom plate that the symmetry set up, its characterized in that: the side carriage plate comprises a side plate boundary beam and a side plate body which is arranged in the side plate boundary beam in a surrounding mode, a transition connecting block is further arranged between the side plate boundary beam and the side plate body, the cross section of the transition connecting block is in an inverted U shape, a containing groove which is suitable for the side plate body is formed in the top of the transition connecting block, the side edge of the side plate body stretches into the containing groove, the side edge of the side plate body is fixedly welded with the inner side wall of the transition connecting block, and the transition connecting block is fixedly welded with the side wall of the side plate boundary beam;
the carriage bottom plate comprises a bottom plate cross beam and a bottom plate longitudinal beam which are connected with each other, a first aluminum bottom plate body and a second aluminum bottom plate body are arranged above the bottom plate cross beam and the bottom plate longitudinal beam, a reinforcing beam is integrally formed at the bottom of the first bottom plate body in an extrusion mode, the reinforcing beam is arranged in parallel with the bottom plate cross beam, a plurality of second bottom plate bodies are arranged between two adjacent first bottom plate bodies, and the first bottom plate bodies and the second bottom plate bodies and the two adjacent second bottom plate bodies are fixedly connected through friction welding;
two sides of the lower part of the bottom plate longitudinal beam respectively extend outwards to form flanges; a notch which is matched with the size of the bottom plate longitudinal beam is formed in the reinforcing beam, the bottom plate longitudinal beam is clamped in the notch, the lower surface of the reinforcing beam is flush with the lower surface of the flange, the lower surface of the reinforcing beam and the lower surface of the flange are welded and fixed in a friction welding mode, and the rest contact parts of the reinforcing beam and the bottom plate longitudinal beam are welded and fixed in an argon arc welding mode;
two sides of a carriage bottom plate between the front carriage plate and the rear carriage plate are respectively and oppositely provided with a plurality of stand columns, side carriage plates are detachably connected between the front carriage plate and the stand columns, between two adjacent stand columns and between the stand columns and the rear carriage plate, guard rails are arranged above the side carriage plates, and the front side and the rear side of the guard rails are respectively connected with the front carriage plate and the stand columns/two adjacent stand columns/stand columns and the rear carriage plate; a limiting rod is also connected between the two upright posts which are oppositely arranged, and the limiting rod is connected to the top of the upright post;
the notch is of an inverted T shape, the longitudinal part of the notch is adapted to the bottom plate longitudinal beam above the flange, the bottom plate longitudinal beam below the flange protrudes out of the lower surface of the stiffening beam, and the transverse part of the notch is adapted to the flange.
2. The lightweight boxcar assembly of claim 1, wherein: the cross section of the first bottom plate body and the stiffening beam is of a T-shaped structure, wherein the first bottom plate body forms a transverse part of the T-shaped structure, and the stiffening beam forms a vertical part of the T-shaped structure.
3. The lightweight boxcar assembly of claim 1, wherein: the first bottom plate body and the second bottom plate body are both of double-layer aluminum plate structures, supporting walls are formed between the double-layer aluminum plates, and the supporting walls divide the first bottom plate body and the second bottom plate body into multi-cavity structures.
4. The lightweight boxcar assembly of claim 1, wherein: the first bottom plate body and the second bottom plate body both adopt a multi-cavity structure.
5. The lightweight boxcar assembly of claim 1, wherein: the bottom of the side carriage plate is hinged with the carriage bottom plate through a hinge, and the top of the side carriage plate is connected with the front carriage plate or the upright post or the rear carriage plate through a buckle and a clip.
6. The lightweight boxcar assembly of claim 1, wherein: the top of rail guard has all been seted up the jack, two stride between the rail guard is equipped with the canopy bracing piece, the bottom of canopy bracing piece is inserted and is located in the jack.
7. The lightweight boxcar assembly of claim 1, wherein: two sides of the bottom of the carriage bottom plate are respectively connected with an anti-collision frame and a mud guard.
8. The lightweight boxcar assembly of claim 1, wherein: and the flange is provided with a yielding groove which is adapted to the transverse part of the notch, and when the bottom plate longitudinal beam is clamped in the notch, the inner wall of the yielding groove is contacted with the inner wall of the transverse part of the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654921.2A CN110341813B (en) | 2019-07-19 | 2019-07-19 | Lightweight boxcar assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910654921.2A CN110341813B (en) | 2019-07-19 | 2019-07-19 | Lightweight boxcar assembly |
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| CN110341813A CN110341813A (en) | 2019-10-18 |
| CN110341813B true CN110341813B (en) | 2023-07-11 |
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| CN110341813A (en) | 2019-10-18 |
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