CN114013511A

CN114013511A - Trailer

Info

Publication number: CN114013511A
Application number: CN202111426333.7A
Authority: CN
Inventors: 郑松军; 蒋玉龙
Original assignee: Liaoning Jintianma Primate Car Manufacturing Co ltd
Current assignee: Liaoning Jintianma Primate Car Manufacturing Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-02-08

Abstract

The utility model provides a trailer, includes four boundary beams that end to end connects gradually and encloses into rectangular frame column structure, be equipped with two longerons that are left and right parallel distribution, a plurality of crossbeam that are linear array distribution along the fore-and-aft direction in the boundary beam. The beneficial effects are as follows: the automobile body frame is characterized in that a plurality of through holes are formed in the longitudinal beams and the cross beams, a plurality of groups of reinforcing parts are arranged between the longitudinal beams, angle beams are arranged at the bottoms of the longitudinal beams and are connected with an axle through suspension assemblies, and angle steel and reinforcing parts are arranged between the angle beams and the longitudinal beams, between the longitudinal beams and between the longitudinal beams.

Description

Trailer

Technical Field

The invention relates to the field of truck accessories, in particular to a trailer.

Background

The trailer of the truck is used for connecting the truck and the cargo box, namely, the cargo box is carried above the trailer, and then the trailer is connected with the truck. The performance of the trailer is mainly embodied in two aspects, namely the strength of the trailer and the weight of the trailer, the stronger the strength of the trailer is, the firmer the trailer is, the lighter the trailer is, the more the cost is saved and the oil consumption in the transportation process is reduced relatively under the condition of adopting the same material, more goods are pulled down under the condition of the same freight train weight limit, and the freight rate is improved. However, in the prior art, the strength and the weight are theoretically proportional, and light weight and high strength and firmness cannot be achieved.

Disclosure of Invention

The invention aims to solve the problems and designs a trailer. The design idea is as follows: the truck is not required to be reinforced at all the repairing positions, the strength requirement of only partial positions is high in the form process, and when the truck is designed, a light frame can be integrally adopted, for example, C-shaped steel, I-shaped steel and rectangular steel bag rectangular solid steel columns are punched on sectional materials or adopted, and then the strength is increased in the form of angle steel and reinforcing pieces at the positions needing to be reinforced in the integral frame.

The specific design scheme is as follows:

a trailer comprises four boundary beams which are sequentially connected end to form a rectangular frame-shaped structure, two longitudinal beams which are distributed in parallel left and right and a plurality of cross beams which are distributed in a linear array along the front and back directions are arranged in the rectangular frame-shaped structure, the front end and the rear end of each longitudinal beam are fixedly connected with the edge beams, a plurality of cross beams which are distributed in a front-rear linear array penetrate through the two longitudinal beams, the two ends of each cross beam are respectively and fixedly connected with the edge beams on the left side and the right side, a plurality of through holes are arranged on the longitudinal beams and the cross beams, a plurality of groups of reinforcing pieces are arranged between the two longitudinal beams, the bottom of the longitudinal beam is provided with an angle beam, the angle beam and the longitudinal beam are connected with an axle through a suspension assembly, angle steel and reinforcing parts used for increasing the strength of the trailer are arranged between the cross beam and the longitudinal beam, between the two longitudinal beams, between the longitudinal beam and the edge beam and between the longitudinal beam and the suspension assembly, and the longitudinal beam is of a Z-shaped structure.

The lower radial section of the boundary beam is of a C-shaped structure, the upper edge of the boundary beam is provided with a bulge of an L-shaped structure, the boundary beam is used for connecting other purchasing parts of a trailer carriage, such as columns of a breast board vehicle and a cabin barrier vehicle, a breast board, a bottom plate and the like, and further such as a van vehicle, the bulge is provided with a plurality of bolt holes, the bulge is bent to be in a shape of being attached to a carrier above, the bulge and the boundary beam can be of an integrated structure formed by cold rolling at one time and play roles of water prevention and strength increase, the boundary beam is provided with a plurality of mounting grooves, the mounting grooves are used for mounting columns of the trailer carriage, the mounting grooves are distributed in a linear array along the axial direction of the boundary beam, the radial section of the mounting grooves is of a C-shaped structure from top to bottom, the mounting grooves are embedded into the boundary beam downwards, and each mounting groove is provided with a fourth reinforcing part corresponding to the mounting groove, the fourth reinforcing part is connected with the edge beam in a welding mode, and the fourth reinforcing part and the mounting groove are located on two sides of the side wall of the edge beam respectively.

A fifth reinforcement and a second angle steel are connected between two adjacent edge beams of the edge beam, the two adjacent edge beams are of an L-shaped structure, the fifth reinforcement and the second angle steel are both positioned on the inner side of the L-shaped structure, the second angle steel is positioned on the outer side of the L-shaped structure, the second angle steel is wrap angle steel with a metal plate bent to be of an L-shaped structure, the fifth reinforcement and the second angle steel are connected with the edge beams through bolts, a tenth angle steel is connected between the fifth reinforcement and the edge beams, the tenth angle steel is positioned in a rectangular space enclosed by the longitudinal beams, the two adjacent edge beams and the cross beam positioned at the head end or the tail end, the tenth angle steel is L-shaped steel, two ends of the tenth angle steel are connected with the fifth reinforcement and the longitudinal beams through bolts, a first reinforcement and a second reinforcement are arranged at the connection part of the edge beams and the longitudinal beams, the first reinforcement is two strip-shaped steel, two welded connection between the strip steel, one of them strip steel embedding in the "C" shape structure of boundary beam and with boundary beam fixed connection, the lateral wall of another strip steel and the lateral wall bolted connection of longeron, first reinforcement, second reinforcement are located respectively the both sides of longeron, the bolt runs through in proper order first reinforcement, longeron, second reinforcement are fixed through the nut, in the bolted connection of second angle steel and longeron, the bolt runs through fifth reinforcement, first reinforcement in proper order and is fixed through the nut, first reinforcement pass through the mounting groove with boundary beam welded connection.

The joint of the cross beam and the edge beam is connected with a third reinforcing piece which is of an L-shaped structure, the edge of the third reinforcing piece is bent to be vertical to the third reinforcing piece, the third reinforcing piece is embedded into the edge beam, the edge of the third reinforcing piece is connected with the side surface and the bottom surface of the edge beam through bolts, the third reinforcing piece is connected with the cross beam through bolts,

the cross beam comprises a penetrating cross beam and a breaking cross beam, the penetrating cross beam and the breaking cross beam are distributed in a staggered manner,

the top and the bottom of the longitudinal beam are bent in the horizontal direction, a ninth angle steel is installed on the side wall of the longitudinal beam and is connected with the longitudinal beam through a bolt,

the two ends of the penetrating crossbeam are connected with the edge beam through third reinforcements, the middle of the penetrating crossbeam penetrates through the longitudinal beam, the longitudinal beam is punched to penetrate through the crossbeam, meanwhile, the lower part of ninth angle steel can also influence the penetrating crossbeam, the lower part of the broken crossbeam needs to be cut into a groove matched with the top surface of the penetrating crossbeam, the front side and the rear side of the penetrating crossbeam are connected with the longitudinal beam through fourth angle steel, the horizontal section of the fourth angle steel is of an inverted L-shaped structure, the outer sides of the two sides of the L-shaped structure of the fourth angle steel are respectively connected with the longitudinal beam and the penetrating crossbeam through bolts, the radial section of the penetrating crossbeam is of an I-shaped or C-shaped structure, the penetrating crossbeam is further connected with the longitudinal beam through sixth reinforcements, the horizontal section of the sixth reinforcements is of a T-shaped structure, and the penetrating crossbeam sequentially penetrates through the sixth reinforcements, Two sides of the T-shaped structure of the sixth reinforcing member are respectively connected with the longitudinal beam and one side of the through cross beam through bolts, the other side of the through cross beam is connected with the fourth angle steel through bolts,

each cross beam comprises three broken cross beams, the three broken cross beams are respectively positioned in gaps between the left side beam and the right side beam and between the two longitudinal beams, the broken cross beam is positioned between the side beams and the longitudinal beams, one end of the broken cross beam is connected with the longitudinal beams through the fifth angle steel, the radial section of each broken cross beam is of a C-shaped structure, the inner angle side of the fifth angle steel is connected with the side end of the broken cross beam in a welding mode, the outer angle side of the fifth angle steel is connected with the longitudinal beams through bolts, and the top surface of each broken cross beam is mounted on the top surface of the fifth angle steel.

The top surface of the I-shaped or C-shaped structure of the penetrating cross beam is used for carrying a box body above, and in order to ensure the structural design, the position of the penetrating cross beam penetrating through the longitudinal beam is sunken downwards.

The suspension assembly comprises a buffer piece, a guide arm and a suspension bracket, wherein two ends of the guide arm are respectively connected with the suspension bracket and the buffer piece, the middle part of the guide arm is carried on an axle, the guide arm is connected with the axle through a U-shaped bolt, the top part of the suspension bracket is fixedly connected with a longitudinal beam and the bottom part of an angle beam, a sixth steel is connected between the longitudinal beam and the buffer piece of the suspension assembly, two ends of the sixth steel are bent to be vertical to a body, two ends of the sixth steel are bent to be vertical to each other, two ends of the sixth steel are respectively connected with the side wall of the longitudinal beam and the top part of the buffer piece through bolts, two ends of a first lining beam are connected with the sixth steel on the two longitudinal beams, two ends of the first lining beam are both connected with the body of the sixth steel through bolts, wherein a mounting plate is further connected between the sixth steel and the buffer piece, the mounting panel is "L" shape structure, the bottom surface of mounting panel with the bolster is connected, the top surface of mounting panel with the sixth steel is connected, the side of mounting panel with the longeron is connected.

The lower portion of the longitudinal beam is bent in the horizontal direction, the outer corner side of the angle beam is matched with the bottom of the longitudinal beam, a seventh angle steel is connected between the angle beam and the longitudinal beam, the seventh angle steel is connected with the angle beam and the longitudinal beam through bolts, the bolts penetrate through the seventh angle steel, the angle beam and the longitudinal beam or the bolts penetrate through the seventh angle steel and the longitudinal beam, and the seventh angle steel provides support for axle limiting.

A first lining beam, a second lining beam and a third lining beam are arranged between the two longitudinal beams, the radial cross sections of the first lining beam and the second lining beam are of a C-shaped structure, the two ends of the second lining beam are connected with a suspension bracket, the longitudinal beams are provided with two eighth angle steels symmetrical along left and right vertical cross sections, the outer side of one side of each eighth angle steel is connected with the longitudinal beam through a bolt, a fourth lining beam is fixedly connected between the middle part of the second lining beam and the inner side of the other side of each eighth angle steel through a bolt, the two longitudinal beams are connected through the two eleventh angle steels, the two eleventh angle steels are mutually staggered to form an X-shaped structure, the two ends of the first lining beam are connected with the two longitudinal beams through bolts, the radial cross section of the first lining beam is of an inverted basin-shaped structure, the third lining beam is connected with the first lining beam through a third channel steel, and the third channel steel is of a U-shaped structure, the both ends embedding of third channel-section steel the bottom of first lining roof beam and with first lining roof beam bolted connection, the bottom of third channel-section steel with connect through the mounting panel between the bolster, the mounting panel is "L" shape structure, the bottom surface of mounting panel with the bolster is connected, the top surface of mounting panel with the third channel-section steel is connected, the side of mounting panel with the longeron is connected.

The longitudinal beam comprises a first longitudinal beam, one end of the first longitudinal beam is fixedly connected with one end of an extension rib, the other end of the first longitudinal beam and the other end of the extension rib are respectively connected with the side beams at the front end and the rear end, the extension rib is of an I-shaped structure, the top surface of the extension rib and the top surface of the first longitudinal beam are located on the same horizontal plane, the head end of the top surface of the extension rib is embedded into the bottom of the top of the first longitudinal beam and fixed through a bolt, and the side wall of the extension rib is connected with the side wall of the first longitudinal beam through a bolt after the side wall of the extension rib is embedded into the side wall of the first longitudinal beam.

The longitudinal beams comprise second longitudinal beams, reinforcing webs and reinforcing bottom plates are arranged at the bottoms of variable cross-section transition areas of the second longitudinal beams, the reinforcing webs and the reinforcing bottom plates are welded integrally to form an inverted T-shaped structure, and the side ends of the reinforcing webs are connected with the side ends of the second longitudinal beams and the reinforcing bottom plates are connected with the bottoms of the second longitudinal beams through bolts.

The fifth reinforcement piece comprises a first channel steel and a second channel steel, the first channel steel is installed at the rear end of the side beam, the second channel steel is installed at the front end of the side beam and is of a U-shaped structure, the tail end of the U-shaped structure is bent and then is connected with the side beam through bolts, through holes are formed in two sides of the U-shaped structure of the second channel steel and are used for reducing weight, bolts penetrate through the second angle steel, the side beam and the second channel steel in sequence and are fixed through nuts, the rear end of the first channel steel is connected with the side beam through bolts, and the side end of the first channel steel is connected with the installation groove in a welded mode.

The trailer obtained by the technical scheme of the invention has the beneficial effects that:

the light automobile body reduces trailer weight, can pull more goods under the same circumstances in, or fuel economy. And the strength of the vehicle body is ensured by mounting reinforcing parts and angle steel at multiple positions on the vehicle body.

Drawings

FIG. 1 is a schematic structural view of a trailer according to the present invention;

FIG. 2 is a schematic top view of the trailer of the present invention;

FIG. 3 is a side view of the stringer of the present invention;

FIG. 4 is a schematic view of the construction of the suspension assembly of the present invention;

FIG. 5 is a side view schematic of the suspension assembly of the present invention;

FIG. 6 is a schematic structural view of the junction between the side beam and the longitudinal and broken cross beams of the present invention;

FIG. 7 is a schematic view of the connection of the through beams with the stringers and the edge beams according to the present invention;

FIG. 8 is a schematic structural view of a second lining beam, a fourth lining beam, a longitudinal beam and a suspension bracket of the invention;

FIG. 9 is a schematic view of the construction of the junction between two adjacent edge beams according to the present invention;

FIG. 10 is a schematic view of the construction of the edge beam of the present invention;

FIG. 11 is a schematic structural view of a sixth reinforcing member according to the present invention;

FIG. 12 is a schematic view of the construction of the through cross member of the present invention connected to a side member by a sixth reinforcing member;

FIG. 13 is a schematic view of the construction of the present invention with the first stringer connected by a first liner beam;

FIG. 14 is a schematic view of a side of a second stringer in accordance with the present invention;

FIG. 15 is a schematic view of the other side of the second stringer of the present invention;

FIG. 16 is a schematic structural view of the present invention wherein the bumper is connected to the first liner beam by a third channel and a mounting plate;

in the figure, 1, an edge beam; 2. a stringer; 3. a cross beam; 4. extending the ribs; 5. a corner beam; 6. an axle; 7. a protrusion; 8. mounting grooves; 9. a fourth reinforcement; 10. a fifth reinforcing member; 11. a second angle steel; 12. a tenth angle iron; 13. a first reinforcement; 14. a second reinforcement; 15. a third reinforcement; 16. the cross beam penetrates through the beam; 17. breaking the beam; 18. a through hole; 19. ninth angle steel; 20. a fourth angle steel; 21. a fifth angle iron; 22. a buffer member; 23. a guide arm; 24. a suspension bracket; 25. a fourth liner beam; 26. a sixth steel; 27. a seventh angle steel; 28. a first liner beam; 29. a second liner beam; 30. a third liner beam; 31. eighth angle steel; 32. a first channel steel; 33. a second channel steel; 34. a first stringer; 35. a second stringer; 36. a reinforcing web; 37. a reinforcing bottom plate; 38. a sixth reinforcement; 39. a third channel steel; 40. mounting a plate; 41. eleventh angle steel.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

The trailer comprises four boundary beams 1 which are sequentially connected end to form a rectangular frame-shaped structure, wherein two longitudinal beams 2 which are distributed in a left-right parallel mode and a plurality of cross beams 3 which are distributed in a linear array mode along the front-back direction are arranged in the rectangular frame-shaped structure, the front end and the back end of each longitudinal beam 2 are fixedly connected with the boundary beams 1, the cross beams 3 which are distributed in a front-back linear array mode penetrate through the longitudinal beams 2, the two ends of each longitudinal beam 2 are fixedly connected with the boundary beams 1 on the left side and the right side respectively, a plurality of through holes 18 are formed in the longitudinal beams 2 and the cross beams 3, a plurality of groups of reinforcing parts are arranged between the longitudinal beams 2, an angle beam 5 is arranged at the bottom of each longitudinal beam 2, the angle beams 5 and the longitudinal beams 2 are connected with axles 6 through suspension assemblies, and angle steel used for increasing the strength of the trailer is arranged between each of the corresponding longitudinal beam 2 and the suspension assemblies, And the longitudinal beam 2 is of a Z-shaped structure.

The radial cross section of the lower part of the boundary beam 1 is of a C-shaped structure, the upper edge of the boundary beam 1 is provided with a protrusion 7 of an L-shaped structure, the boundary beam is used for connecting other purchasing parts of a trailer compartment, such as columns of a breast board vehicle and a compartment truck, a breast board, a bottom plate and the like, and further such as a van vehicle, the protrusion 7 is provided with a plurality of bolt holes, the protrusion 7 is bent to be in a shape of being attached to a carrier above, the protrusion 7 and the boundary beam 1 can be of an integrated structure formed by one-time cold rolling and play roles of water prevention and strength increase, the boundary beam 1 is provided with a plurality of mounting grooves 8, the mounting grooves 8 are used for mounting the columns of the trailer compartment, the mounting grooves 8 are distributed in a linear array along the axial direction of the boundary beam 1, the radial cross section of the mounting grooves 8 is of the C-shaped structure, the mounting grooves are embedded into the boundary beam 1 from top to bottom, each mounting groove 8 is provided with a fourth reinforcing part 9 corresponding to the mounting groove, fourth reinforcement 9 and boundary beam 1 welded connection, fourth reinforcement and mounting groove 8 are located respectively the both sides of boundary beam 1 lateral wall.

The corner structure is characterized in that a fifth reinforcement 10 and a second angle steel 11 are connected between two adjacent edge beams 1, the two adjacent edge beams 1 are in an L-shaped structure, the fifth reinforcement 10 is positioned on the inner side of the L-shaped structure, the second angle steel 11 is positioned on the outer side of the L-shaped structure, the second angle steel 11 is a wrap angle steel of which a metal plate is bent to form the L-shaped structure, the fifth reinforcement 10 and the second angle steel 11 are both connected with the edge beams 1 through bolts, a tenth angle steel 12 is connected between the fifth reinforcement 10 and the longitudinal beams 2, the tenth angle steel 12 is positioned in a rectangular space enclosed by the longitudinal beams 2, the two adjacent edge beams 1 and the cross beam 3 positioned at the head end or the tail end, the tenth angle steel 12 is L-shaped steel, two ends of the tenth angle steel 12 are connected with the fifth reinforcement 10 and the longitudinal beams 2 through bolts, and a first reinforcement 13 and a second reinforcement are arranged at the connection part of the edge beams 1 and 2, Second reinforcement 14, first reinforcement 13 is two strip steel, two welded connection between the strip steel, one of them strip steel embedding in the "C" shape structure of boundary beam 1 and with 1 fixed connection of boundary beam, the lateral wall of another strip steel and the lateral wall bolted connection of longeron 2, first reinforcement 13, second reinforcement 14 are located respectively the both sides of longeron 2, the bolt runs through in proper order first reinforcement 13, longeron 2, second reinforcement 14 and fixed through the nut, in the bolted connection of second angle steel 11 and longeron 2, the bolt runs through fifth reinforcement 10, first reinforcement 13 in proper order and is fixed through the nut, first reinforcement 13 pass through mounting groove 8 with 1 welded connection of boundary beam.

The C-shaped structural design of the boundary beam 1 can effectively reduce the weight and the production cost and the transportation load of the trailer. The connection points of the rectangular structure enclosed by the side beams 1, the cross beam 3 and the longitudinal beam 2 are respectively fixed through a fifth reinforcing piece 10, a second angle steel 11 and a first reinforcing piece 13, the strength of the connection of the parts is improved through establishment of support, meanwhile, a middle lining is established in the rectangular structure through a tenth angle steel 12, and the connection is connected with the support structure established by the first reinforcing piece 13 through a second reinforcing piece 14, so that the strength is further improved.

The joint of the cross beam 3 and the edge beam 1 is connected with a third reinforcing member 15, the third reinforcing member 15 is of an L-shaped structure, the edge of the third reinforcing member 15 is bent to be perpendicular to the third reinforcing member 15, the third reinforcing member 15 is embedded into the edge beam 1, the edge of the third reinforcing member 15 is in bolted connection with the side surface and the bottom surface of the edge beam 1, the third reinforcing member 15 is in bolted connection with the cross beam 3,

the cross beam 3 comprises a through cross beam 16 and a broken cross beam 17, the through cross beam 16 and the broken cross beam 17 are distributed in a staggered way,

the top and the bottom of the longitudinal beam 2 are bent in the horizontal direction, a ninth angle steel 19 is installed on the side wall of the longitudinal beam 2, the ninth angle steel 19 is connected with the longitudinal beam 2 through a bolt,

the two ends of the penetrating crossbeam 16 are connected with the edge beam 1 through a third reinforcing part 15, the middle part of the penetrating crossbeam 16 penetrates through the longitudinal beam 2, holes are punched in the longitudinal beam 2 for penetrating through the penetrating crossbeam 16, meanwhile, the lower part of the ninth angle steel 19 can also influence the penetrating crossbeam 16, the lower part of the broken crossbeam 19 needs to cut a groove which is matched with the top surface of the penetrating crossbeam 16, the front side and the rear side of the penetrating crossbeam 16 are both connected with the longitudinal beam 2 through fourth angle steel 20, the horizontal section of the fourth angle steel 20 is in an inverted L-shaped structure, the outer sides of the two sides of the L-shaped structure of the fourth angle steel 20 are respectively in bolted connection with the longitudinal beam 2 and the penetrating crossbeam 16, the radial section of the penetrating crossbeam 16 is in an I-shaped or C-shaped structure, the penetrating crossbeam 16 is also connected with the longitudinal beam 2 through a sixth reinforcing part 38, and the horizontal section of the sixth reinforcing part 38 is in a T-shaped structure, the penetrating crossbeam 16 penetrates through the sixth reinforcing member 38 and the longitudinal beam 2 in sequence, two sides of the T-shaped structure of the sixth reinforcing member 38 are respectively connected with the longitudinal beam 2 and one side of the penetrating crossbeam 16 through bolts, the other side of the penetrating crossbeam 16 is connected with the fourth angle steel 20 through bolts,

each cross beam 3 comprises three broken cross beams 17, the three broken cross beams 17 are respectively positioned in gaps between the left side beam and the right side beam and the two longitudinal beams 2, the broken cross beam 17 is positioned between the side beam 1 and the longitudinal beam 2, one end of the broken cross beam 17 is connected with the longitudinal beam 2 through a fifth angle steel 21, the radial section of the broken cross beam 17 is of a C-shaped structure, the inner corner side of the fifth angle steel 21 is connected with the side end of the broken cross beam 17 in a welding mode, the outer corner side of the fifth angle steel 21 is connected with the longitudinal beam 2 in a bolt mode, and the top face of the broken cross beam 17 is arranged on the top face of the fifth angle steel 21.

The top surface of the through beam 16 is of an I-shaped or C-shaped structure for carrying an upper box body, and in order to ensure the structural design, the position of the through beam 16 penetrating through the longitudinal beam 2 is recessed downwards.

The broken cross beam 17 is smaller and lighter than the cross beam 16 in cross section, and has advantages and disadvantages, if the cross beam 16 is completely penetrated, excessive punching is needed on the upper part of the side wall of the longitudinal beam 2, the position is the joint of the longitudinal beam 2 and the cross beam 3, the strength of the longitudinal beam 2 can be influenced by penetration after punching, the reinforcement can be realized through the sixth reinforcing part at the moment, and the through cross beam 16 of the whole structure has higher strength. The broken cross beam 17 is divided into a plurality of sections, the integrity of the longitudinal beam 2 can be guaranteed, the strength of the important repair position of the longitudinal beam can be guaranteed, the broken cross beam 17 is light in whole, the carrying structure of the broken cross beam 17 and the fifth angle steel 21 can increase the buffering capacity of the cross beam 3, but the strength of the divided broken cross beam 17 is not as good as that of the penetrating cross beam 16, and the penetrating cross beam 16 and the broken cross beam 17 are adopted, so that the strength of the cross beam 3 and the strength of the longitudinal beam 2 can be comprehensively coordinated.

When a box body above the trailer is installed, the top surfaces of the penetrating cross beam 16, the broken cross beam 17, the bulge 7, the auxiliary beam 19 and the longitudinal beam 2 are ensured to be positioned on the same horizontal plane, so that the bearing is uniform.

The suspension assembly comprises a buffer member 22, a guide arm 23 and a suspension bracket 24, wherein two ends of the guide arm 23 are respectively connected with the suspension bracket 24 and the buffer member 22, the middle part of the guide arm 23 is arranged on the axle 6, the guide arm 23 is connected with the axle 6 through a U-shaped bolt, the top part of the suspension bracket 24 is fixedly connected with the longitudinal beam 2 and the bottom part of the angle beam 5, a second hexagonal steel 26 is connected between the longitudinal beam 2 and the buffer member 22 of the suspension assembly, two ends of the second hexagonal steel 26 are bent to be vertical to the body, two ends of the second hexagonal steel 26 are bent to be vertical to each other, two ends of the second hexagonal steel 26 are respectively connected with the side wall of the longitudinal beam 2 and the top part of the buffer member 22 through bolts, two ends of a first lining beam 28 are connected with the second hexagonal steels 26 on the two longitudinal beams 2, and two ends of the first lining beam 28 are both connected with the body of the second hexagonal steel 26 through bolts, wherein, the sixth angle steel 26 with still be connected with mounting panel 40 between the bolster 22, mounting panel 40 is "L" shape structure, the bottom surface of mounting panel 40 with the bolster 22 is connected, the top surface of mounting panel 40 with the sixth angle steel 26 is connected, the side of mounting panel 40 with longeron 2 is connected.

The buffer part 22 and the suspension bracket 24 are respectively two ends of the suspension assembly, and the two are respectively fixedly connected with the corner beam 5 and the longitudinal beam 2, and the longitudinal beam and the corner beam 5 are fixedly connected, so that the impact on the frame is reduced to the maximum extent on the premise of not influencing the work of the buffer assembly.

The lower portion of the longitudinal beam 2 is bent in the horizontal direction, the outer corner side of the corner beam 5 is matched with the bottom of the longitudinal beam 2, a seventh angle steel 27 is connected between the corner beam 5 and the longitudinal beam 2, the seventh angle steel 27 is connected with the corner beam 5 and the longitudinal beam 2 through bolts, the bolts penetrate through the seventh angle steel 27, the corner beam 5 and the longitudinal beam 2 or the bolts penetrate through the seventh angle steel 27 and the longitudinal beam 2, and the seventh angle steel 27 provides support for limiting of an axle.

A first lining beam 28, a second lining beam 29 and a third lining beam 30 are arranged between the two longitudinal beams 2, the radial sections of the first lining beam 28 and the second lining beam 29 are of a C-shaped structure, the two ends of the second lining beam 29 are connected with a suspension bracket 24, two eighth angle steels 31 symmetrical along the left and right vertical sections are installed on the longitudinal beams 2, the outer sides of one sides of the eighth angle steels 31 are connected with the longitudinal beams 2 through bolts, a fourth lining beam 25 is fixedly connected between the middle part of the second lining beam 29 and the inner sides of the other sides of the eighth angle steels 31 through bolts, the two longitudinal beams 2 are connected through the two eleventh angle steels 41, the two eleventh angle steels 41 are mutually staggered to form an X-shaped structure, the two ends of the first lining beam 28 are connected with the two longitudinal beams 2 through bolts, the radial section of the first lining beam 28 is of an inverted basin-shaped structure, and the first lining beam 22 is connected with the first lining beam 28 through a third buffer piece 39, third channel steel 39 is "U" shape structure, the embedding in both ends of third channel steel 39 the bottom of first lining roof beam 28 and with first lining roof beam 28 bolted connection, the bottom of third channel steel 39 with connect through mounting panel 40 between the bolster 22, mounting panel 40 is "L" shape structure, the bottom surface of mounting panel 40 with the bolster 22 is connected, the top surface of mounting panel 40 with third channel steel 39 is connected, the side of mounting panel 40 with longeron 2 is connected.

The first lining beam 28, the second lining beam 29, the third lining beam 30 and the eleventh angle steel 41 are used for connecting the two longitudinal beams to ensure the strength and simultaneously ensure the synchronism between the two longitudinal beams 2, particularly when the buffer assembly is used, the fourth lining beam 25 is obliquely placed and connected with the second lining beam 29 and the longitudinal beams 2 to form a triangular structure integrally, and the eleventh angle steel 41 is in an X-shaped structure to increase the strength.

The longitudinal beam 2 comprises a first longitudinal beam 34, one end of the first longitudinal beam 34 is fixedly connected with one end of an extension rib 4, the other end of the first longitudinal beam 34 and the other end of the extension rib 4 are respectively connected with the side beams 1 at the front end and the rear end, the extension rib 4 is of an I-shaped structure, the top surface of the extension rib 4 and the top surface of the first longitudinal beam 34 are located on the same horizontal plane, the head end of the top surface of the extension rib 4 is embedded into the lower portion of the top of the first longitudinal beam 34 and fixed through a bolt, and the side wall of the extension rib 4 is connected with the side wall of the first longitudinal beam 34 through a bolt after being embedded.

The longitudinal beam 2 comprises a second longitudinal beam 35, a reinforcing web 36 and a reinforcing bottom plate 37 are arranged at the bottom of a variable cross-section transition area of the second longitudinal beam 35, the reinforcing web 36 and the reinforcing bottom plate 37 are welded integrally to form an inverted T-shaped structure, and the side end of the reinforcing web 36 is in bolted connection with the side end of the second longitudinal beam 35 and the reinforcing bottom plate 37 is in bolted connection with the bottom of the second longitudinal beam 35.

The first longitudinal beam and the second longitudinal beam are not different in function, the selection depends on the production capacity, the production cost of the first sub-class is high, but the production process is more traditional, so the production difficulty is low, and the production difficulty of the second longitudinal beam is high, but if the first longitudinal beam and the second longitudinal beam can be produced, the production cost is low.

Fifth reinforcement 10 includes first channel-section steel 32, second channel-section steel 33, first channel-section steel 32 install in the boundary beam rear end, second channel-section steel 33 is installed in the front end of boundary beam 33, second channel-section steel 33 is "U" shape structure, the end of "U" shape structure buckle after with boundary beam 1 bolted connection, the both sides of second channel-section steel 33 "U" shape structure all are equipped with the through-hole for weight reduction, the bolt runs through in proper order second angle steel 11, boundary beam 1, second channel-section steel 33 and pass through the nut fixed, the rear end and the boundary beam 1 bolted connection of first channel-section steel 32, the side and the 8 welded connection of mounting groove of first channel-section steel 32.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. The trailer comprises four boundary beams (1) which are sequentially connected end to form a rectangular frame-shaped structure, wherein two longitudinal beams (2) which are distributed in a left-right parallel mode and a plurality of cross beams (3) which are distributed in a linear array mode along the front-back direction are arranged in the rectangular frame-shaped structure, the front end and the back end of each longitudinal beam (2) are fixedly connected with the boundary beams (1), the cross beams (3) which are distributed in a front-back linear array mode penetrate through the two longitudinal beams (2) and the two ends of the two longitudinal beams are fixedly connected with the boundary beams (1) on the left side and the right side respectively, the trailer is characterized in that a plurality of through holes (18) are formed in the longitudinal beams (2) and the cross beams (3), a plurality of groups of reinforcing pieces are arranged between the longitudinal beams (2), corner beams (5) are arranged at the bottoms of the longitudinal beams (2), the corner beams (5) and the longitudinal beams (2) are connected with axles (6) through suspension assemblies, and the cross beams (3) and the longitudinal beams (2) are connected with each other, Two angle steel and a reinforcing part which are used for increasing the strength of the trailer are arranged between the longitudinal beams (2), between the longitudinal beams (2) and the edge beam (1) and between the longitudinal beams (2) and the suspension assembly, and the longitudinal beams (2) are in Z-shaped structures.

2. The trailer according to claim 1, wherein the lower radial section of the side beam (1) is of a "C" shape, the upper edge of the side beam (1) is provided with a protrusion (7) of an L-shaped structure, the side beam is used for connecting other purchased parts of a trailer compartment, such as columns, fenders, bottom plates and the like of a baffle car and a compartment car, and further such as a van, the protrusion (7) is provided with a plurality of bolt holes, the protrusion (7) is bent to be in a shape fitting with a carrier above, the protrusion (7) and the side beam (1) can be of an integral structure formed by cold rolling at one time, the protrusion and the side beam play a role in preventing water and increasing strength, the side beam (1) is provided with a plurality of mounting grooves (8), the mounting grooves (8) are used for mounting the columns of the trailer compartment, and the plurality of mounting grooves (8) are distributed in a linear array along the axial direction of the side beam (1), the radial cross-section of mounting groove (8) is "C" shape structure, the mounting groove is from the top down embedded into boundary beam (1), and every mounting groove (8) all is equipped with one fourth reinforcement (9) rather than corresponding, fourth reinforcement (9) and boundary beam (1) welded connection, fourth reinforcement and mounting groove (8) are located respectively the both sides of boundary beam (1) lateral wall.

3. The trailer according to claim 1, wherein a fifth reinforcement (10) and a second angle steel (11) are connected between two adjacent edge beams (1), two adjacent edge beams (1) are in an L-shaped structure, the fifth reinforcement (10) is located on the inner side of the L-shaped structure, the second angle steel (11) is located on the outer side of the L-shaped structure, the second angle steel (11) is a corner-wrapped steel with a metal plate bent in an L-shaped structure, the fifth reinforcement (10) and the second angle steel (11) are both connected with the edge beams (1) through bolts, a tenth angle steel (12) is connected between the fifth reinforcement (10) and the longitudinal beam (2), the tenth angle steel (12) is located in a rectangular space surrounded by the longitudinal beam (2), two adjacent edge beams (1) and a head end beam (3) located at the extreme end or the extreme end, tenth angle steel (12) are L shaped steel, the both ends of tenth angle steel (12) with fifth reinforcement (10), longeron (2) bolted connection, the junction of boundary beam (1) and longeron (2) is equipped with first reinforcement (13), second reinforcement (14) are located respectively the both sides of longeron (2), the bolt runs through in proper order first reinforcement (13), longeron (2), second reinforcement (14) and fixed through the nut, first reinforcement (13) through mounting groove (8) with boundary beam (1) fixed connection.

4. The trailer according to claim 1, wherein a third reinforcing member (15) is connected to the joint of the cross beam (3) and the edge beam (1), the third reinforcing member (15) is in an L-shaped structure, the edge of the third reinforcing member (15) is bent to be perpendicular to the third reinforcing member (15), the third reinforcing member (15) is embedded into the edge beam (1), the edge of the third reinforcing member (15) is bolted to the side surface and the bottom surface of the edge beam (1), the third reinforcing member (15) is bolted to the cross beam (3),

the cross beam (3) comprises a penetrating cross beam (16) and a breaking cross beam (17), the penetrating cross beam (16) and the breaking cross beam (17) are distributed in a staggered manner,

the top and the bottom of the longitudinal beam (2) are bent in the horizontal direction, a ninth angle steel (19) is installed on the side wall of the longitudinal beam (2), the ninth angle steel (19) is in bolt connection with the longitudinal beam (2),

the two ends of the penetrating crossbeam (16) are connected with the edge beam (1) through a third reinforcing piece (15), the middle part of the penetrating crossbeam (16) penetrates through the longitudinal beam (2), punch holes are formed in the longitudinal beam (2) and used for penetrating through the penetrating crossbeam (16), meanwhile, the lower part of a ninth angle steel (19) can also influence the penetrating crossbeam (16), grooves matched with the top surface of the penetrating crossbeam (16) need to be cut at the lower part of the broken crossbeam (19), the front side and the rear side of the penetrating crossbeam (16) are connected with the longitudinal beam (2) through a fourth angle steel (20), the horizontal section of the fourth angle steel (20) is of an inverted L-shaped structure, the outer sides of the two sides of the L-shaped structure of the fourth angle steel (20) are respectively connected with the longitudinal beam (2) and the penetrating crossbeam (16) through bolts, and the radial section of the penetrating crossbeam (16) is of an I-shaped structure or a C-shaped structure, the penetrating cross beam (16) is further connected with the longitudinal beam (2) through a sixth reinforcing piece (38), the horizontal section of the sixth reinforcing piece (38) is of a T-shaped structure, the penetrating cross beam (16) sequentially penetrates through the sixth reinforcing piece (38) and the longitudinal beam (2), two sides of the T-shaped structure of the sixth reinforcing piece (38) are respectively connected with the longitudinal beam (2) and one side of the penetrating cross beam (16) through bolts, and the other side of the penetrating cross beam (16) is connected with a fourth angle steel (20) through bolts,

each cross beam (3) comprises three broken cross beams (17), the three broken cross beams (17) are respectively positioned in a gap between the left side beam and the right side beam and two longitudinal beams (2), the broken cross beam (17) positioned between the side beam (1) and the longitudinal beam (2) has one end connected with the longitudinal beam (2) through a fifth angle steel (21), the radial section of each broken cross beam (17) is of a C-shaped structure, the inner angle side of each fifth angle steel (21) is welded with the side end of each broken cross beam (17), the outer angle side of each fifth angle steel (21) is connected with the longitudinal beam (2) through a bolt, the top surface of each broken cross beam (17) is arranged on the top surface of the corresponding fifth angle steel (21),

the top surface of the through cross beam (16) is of an I-shaped or C-shaped structure and is used for carrying an upper box body, and in order to ensure the structural design, the position of the through cross beam (16) penetrating through the longitudinal beam (2) is recessed downwards.

5. The trailer according to claim 1, wherein the suspension assembly comprises a buffer member (22), a guide arm (23) and a suspension bracket (24), both ends of the guide arm (23) are respectively connected with the suspension bracket (24) and the buffer member (22), the middle part of the guide arm (23) is loaded on the axle (6), the guide arm (23) is connected with the axle (6) through a U-shaped bolt, the top part of the suspension bracket (24) is fixedly connected with the longitudinal beam (2) and the bottom part of the angle beam (5), a hexagonal steel (26) is connected between the longitudinal beam (2) and the buffer member (22) of the suspension assembly, both ends of the hexagonal steel (26) are bent to be perpendicular to the body, both ends of the hexagonal steel (26) are bent to be perpendicular to each other, and both ends of the hexagonal steel (26) are bent to be respectively connected with the side wall of the longitudinal beam (2), The top bolted connection of bolster (22), the both ends of first lining roof beam (28) are connected with second angle steel (26) on two longerons (2), the cross-section of first lining roof beam (28) is "C" shape structure, the both ends of first lining roof beam (28) all with the body bolted connection of second angle steel (26), wherein, second angle steel (26) with still be connected with mounting panel (40) between bolster (22), mounting panel (40) are "L" shape structure, the bottom surface of mounting panel (40) with bolster (22) are connected, the top surface of mounting panel (40) with second angle steel (26) are connected, the side of mounting panel (40) with longeron (2) are connected.

6. The trailer according to claim 1, wherein the lower part of the longitudinal beam (2) is bent in a horizontal direction, the outer corner side of the corner beam (5) is fitted with the bottom of the longitudinal beam (2), a seventh angle steel (27) is connected between the corner beam (5) and the longitudinal beam (2), the seventh angle steel (27) is connected with the corner beam (5) and the longitudinal beam (2) through bolts, the bolts penetrate through the seventh angle steel (27), the corner beam (5) and the longitudinal beam (2) or the bolts penetrate through the seventh angle steel (27) and the longitudinal beam (2), and the seventh angle steel (27) provides support for limiting the axle.

7. The trailer according to claim 1, characterized in that a first lining beam (28), a second lining beam (29) and a third lining beam (30) are arranged between the two longitudinal beams (2), the radial sections of the first lining beam (28) and the second lining beam (29) are in a C-shaped structure, the two ends of the second lining beam (29) are connected with the suspension bracket (24), the longitudinal beams (2) are provided with two eighth angle steels (31) which are symmetrical along the left-right vertical section, the outer sides of one side of each eighth angle steel (31) are in bolt connection with the longitudinal beams (2), a fourth lining beam (25) is fixedly connected between the middle part of the second lining beam (29) and the inner side of the other side of each eighth angle steel (31) through bolts, the two longitudinal beams (2) are connected through the two eleventh angle steels (41), the two eleventh angle steels (41) are staggered with each other to form an X-shaped structure, the two ends of the first lining beam (28) are connected with the two longitudinal beams (2) through bolts, the radial section of the first lining beam (28) is of an inverted basin-shaped structure, the buffer piece (22) is connected with the first lining beam (28) through a third channel steel (39), the third channel steel (39) is of a U-shaped structure, two ends of the third channel steel (39) are embedded into the bottom of the first lining beam (28) and are connected with the first lining beam (28) through bolts, the bottom of the third channel steel (39) is connected with the buffer piece (22) through a mounting plate (40), the mounting plate (40) is of an L-shaped structure, the bottom surface of the mounting plate (40) is connected with the buffer piece (22), the top surface of mounting panel (40) with third channel-section steel (39) are connected, the side of mounting panel (40) with longeron (2) are connected.

8. The trailer according to claim 1, wherein the longitudinal beam (2) comprises a first longitudinal beam (34), one end of the first longitudinal beam (34) is fixedly connected with one end of an extension rib (4), the other end of the first longitudinal beam (34) and the other end of the extension rib (4) are respectively connected with the side beams (1) at the front end and the rear end, the extension rib (4) is in an I-shaped structure, the top surface of the extension rib (4) and the top surface of the first longitudinal beam (34) are located on the same horizontal plane, the head end of the top surface of the extension rib (4) is embedded below the top of the first longitudinal beam (34) and fixed through a bolt, and the side wall of the extension rib (4) is connected with the side wall of the first longitudinal beam (34) through a bolt after being inserted and embedded.

9. The trailer according to claim 1, wherein the longitudinal beam (2) comprises a second longitudinal beam (35), a reinforcing web (36) and a reinforcing bottom plate (37) are arranged at the bottom of the variable cross-section transition area of the second longitudinal beam (35), the reinforcing web (36) and the reinforcing bottom plate (37) are welded integrally to form an inverted T-shaped structure, and the side end of the reinforcing web (36) is in bolted connection with the side end of the second longitudinal beam (35) and the reinforcing bottom plate (37) is in bolted connection with the bottom of the second longitudinal beam (35).

10. The trailer according to claim 3, wherein the fifth reinforcing member (10) comprises a first channel steel (32) and a second channel steel (33), the first channel steel (32) is mounted at the rear end of the side beam, the second channel steel (33) is mounted at the front end of the side beam (1), the second channel steel (33) is of a U-shaped structure, the tail end of the U-shaped structure is bent and then is connected with the side beam (1) through a bolt, through holes are formed in two sides of the U-shaped structure of the second channel steel (33) for reducing weight, the bolt sequentially penetrates through the second angle steel (11), the side beam (1) and the second channel steel (33) and is fixed through a nut, the rear end of the first channel steel (32) is connected with the side beam (1) through a bolt, and the side end of the first channel steel (32) is connected with the mounting groove (8) in a welding manner.