CN218907370U

CN218907370U - Carriage assembly of trailer

Info

Publication number: CN218907370U
Application number: CN202222918914.9U
Authority: CN
Inventors: 吴志强; 张恒; 钟斌桓
Original assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Current assignee: Guangdong Fuwa Engineering Manufacturing Co Ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-25
Anticipated expiration: 2032-11-03

Abstract

The carriage assembly of the trailer comprises two longitudinal beams, a plurality of cross beams and a suspension system; the longitudinal beam comprises a side wall, a top wall positioned at the top of the side wall and a bottom wall positioned at the bottom of the side wall, an opening is formed between the top wall and the bottom wall at the inner side of the longitudinal beam, and the end part of the transverse beam penetrates through the opening; the end face of the cross beam is fixedly connected with the inner surface of the side wall, the upper surface of the cross beam is fixedly connected with the lower surface of the top wall, and the lower surface of the cross beam is fixedly connected with the upper surface of the bottom wall; the suspension system comprises a support, wherein the support comprises an outer wall plate, an inner wall plate and a connecting piece connected between the outer wall plate and the inner wall plate, the top of the outer wall plate is attached to the outer surface of the side wall and connected with the side wall, the top of the inner wall plate is connected to a longitudinal beam, two sides of the inner wall plate are respectively provided with a supporting plate which is formed by bending towards the direction deviating from the outer wall plate, and the supporting plates are connected to a cross beam. According to the utility model, the transverse rigidity of the joint of the bracket and the longitudinal beam is increased, so that the vehicle is ensured to have better running performance, and the safety of the vehicle is improved.

Description

Carriage assembly of trailer

Technical Field

The utility model relates to the technical field of vehicles, in particular to a carriage assembly of a trailer.

Background

The carriage of the trailer is usually mounted on the girder of the trailer for adjusting the distance between the suspension and the tractor, so that it can be distributed reasonably and so that the trailer can be adapted to different road surfaces. The carriage assembly of the trailer generally comprises a frame consisting of two longitudinal beams and a plurality of cross beams, and a suspension system, wherein the cross beams are connected between the two longitudinal beams, the suspension system is arranged below the frame and connected on the frame through a bracket, in particular, the bracket is welded at the bottom of the longitudinal beams, and is used for bearing the mutual impact of the frame and the suspension system in the height direction, however, when the vehicle runs on complex road conditions, the impact of the suspension on the frame is not limited to the height direction, the bracket is also subjected to the transverse impact (namely the impact force consistent with the width direction of the carriage) from the suspension system, and in the traditional structure, the structure that the bracket is only fixed at the bottom of the longitudinal beams is difficult to ensure that the joint of the bracket and the frame has stronger transverse strength, so that the running performance of the vehicle is influenced, and even the safety of the vehicle is influenced.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present utility model to provide a carriage assembly for a trailer that increases the lateral strength of the connection of the bracket to the rail.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the sliding frame assembly of the trailer comprises two longitudinal beams, a plurality of cross beams connected between the two longitudinal beams and a suspension system;

the longitudinal beam comprises a side wall, a top wall positioned at the top of the side wall and a bottom wall positioned at the bottom of the side wall, an opening is formed between the top wall and the bottom wall at the inner side of the longitudinal beam, and the end part of the transverse beam penetrates through the opening; the end face of the cross beam is fixedly connected with the inner surface of the side wall, the upper surface of the cross beam is fixedly connected with the lower surface of the top wall, and the lower surface of the cross beam is fixedly connected with the upper surface of the bottom wall;

the suspension system comprises a support, wherein the support comprises an outer wall plate, an inner wall plate opposite to the outer wall plate and a connecting piece connected between the outer wall plate and the inner wall plate, the top of the outer wall plate is attached to the outer surface of the side wall and connected with the side wall, the top of the inner wall plate is connected to a longitudinal beam, two sides of the inner wall plate are respectively provided with a supporting plate which is formed by bending towards the direction deviating from the outer wall plate, and the supporting plates are connected to a cross beam.

The connecting piece is U-shaped, and its both sides welded fastening is on outer wallboard and interior wallboard respectively, both ends welded fastening on the lower surface of diapire.

A reinforcing piece which is attached to the lower surface of the connecting piece is arranged below the connecting piece, two sides of the reinforcing piece are respectively provided with a reinforcing plate which extends downwards, and the two reinforcing plates are respectively attached to and welded on the outer wall plate and the inner wall plate.

The inner edge of the bottom wall is provided with a vertical supporting wall extending upwards and a horizontal supporting wall extending from the top of the vertical supporting wall to the direction away from the side wall, an opening is positioned between the horizontal supporting wall and the top wall, and the lower surface of the cross beam is welded and fixed on the upper surface of the horizontal supporting wall; the top of the inner wall plate is attached to and welded to the inner surface of the vertical supporting wall, the cross beam comprises two vertical matching surfaces staggered by a certain distance along the length direction of the longitudinal beam, and the two supporting plates are attached to and welded to the two matching surfaces respectively.

The top of backup pad upwards protrudes in the top of inner wall board, is formed with the concave position of dodging that is used for dodging horizontal support wall in the backup pad.

The beam comprises two beam units and two end plates connected between two end parts of the two beam units, the beam units comprise a web plate, an upper wing plate positioned at the top of the web plate and a lower wing plate positioned at the bottom of the web plate, the upper wing plate is attached to the lower surface of the top wall and connected with the top wall, and the lower wing plate is attached to the upper surface of the horizontal supporting wall and connected with the horizontal supporting wall; the two matching surfaces are respectively positioned on webs of the two beam units.

The width of the matching part of the upper wing plate and the top wall is larger than the width of other positions of the upper wing plate; the width of the matching part of the lower wing plate and the horizontal supporting wall is larger than the width of other positions of the lower wing plate; the width of the matching part of the horizontal supporting wall and the lower wing plate is larger than that of other positions of the horizontal supporting wall.

The outside of the beam unit near the end of the longitudinal beam is also provided with a supporting piece, the top of the supporting piece is connected with the lower surface of the upper wing plate, and the bottom of the supporting piece is connected with the longitudinal beam.

A supporting part is formed on the opposite surfaces of the outer wall plate and the inner wall plate, and two sides of the bottom wall are respectively arranged on the supporting parts of the outer wall plate and the inner wall plate.

The equal convex boss that is provided with on the face that outer wallboard and inner wall board are relative, and the supporting part is located the top of boss, and the connecting piece is located between the boss of outer wallboard and the boss of inner wall board, and the interval between the boss on the outer wallboard and the boss on the inner wall board is D1, and the interval between the part that is located the boss top on the outer wallboard and the part that is located the boss top on the inner wall board is D2, and wherein D2 is greater than D1.

The utility model has the beneficial effects that:

in the utility model, as the two sides of the inner wall plate of the bracket are respectively integrally formed with one supporting plate, and the two supporting plates are connected to the cross beam, the supporting plates form a supporting structure between the cross beam and the bracket, the transverse rigidity of the joint of the bracket and the longitudinal beam is increased, the vehicle is ensured to have better running performance, and the safety of the vehicle is improved.

Drawings

FIG. 1 is a schematic view of a carriage assembly of the present utility model;

FIG. 2 is a schematic view of the installation of the carriage assembly of the present utility model;

FIG. 3 is a schematic view of the assembly of stringers, beams, brackets of the carriage assembly of FIG. 2;

FIG. 4 is a schematic illustration of the connection of stringers, beams, brackets of the carriage assembly of FIG. 2;

fig. 5 is a schematic structural view of the bracket in fig. 2.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description:

as shown in fig. 1, 2, 3, 4 and 5, the carriage assembly of the trailer of the present utility model comprises two longitudinal beams 10, a plurality of cross beams, and a suspension system, wherein the two longitudinal beams 10 are respectively arranged at two sides of the carriage assembly and extend along the length direction of the carriage assembly, the plurality of cross beams are connected between the two longitudinal beams 10, thereby forming a frame, and the suspension system is installed below the frame; the longitudinal beam 10 is formed by bending a plate material and comprises a side wall 11, a top wall 12 formed by bending the top of the side wall 11 inwards, and a bottom wall 13 formed by bending the bottom of the side wall 11 inwards, an opening is formed between the top wall 12 and the bottom wall 13 inside the longitudinal beam 10, the end part of the transverse beam penetrates through the opening inside the longitudinal beam 10, the end face of the transverse beam 10 is fixed with the inner surface of the side wall 11, the upper surface of the transverse beam is fixed with the lower surface of the top wall 12, and the lower surface of the transverse beam is fixed with the upper surface of the bottom wall 13; the suspension system comprises a bracket 30, the suspension system is connected under the frame through the bracket 30, specifically, the bracket 30 comprises an outer wall plate 32, an inner wall plate 31 and a connecting piece 33, the outer wall plate 32 is located on the outer side of the inner wall plate 31 and is separated from the inner wall plate 31 by a certain distance, the connecting piece 33 is connected between the outer wall plate 32 and the inner wall plate 31 so as to connect the inner wall plate 31 and the outer wall plate 32 together, the top of the outer wall plate 32 is abutted against the outer surface of the side wall 11 and is fixedly connected with the side wall 11, specifically, the top of the outer wall plate 32 can be fixedly connected with the side wall 11 through bolts, can be fixedly connected with the side wall 11 through welding, can be fixedly connected with the inner wall plate 31 and the side wall 10 through bolts, can be fixedly connected with the side wall 312 through welding, and can be fixedly connected with the side wall 10 through bolts.

In the above-mentioned scheme of the present utility model, since the two sides of the inner wall plate 31 of the bracket are respectively formed integrally with one supporting plate 312, and the two supporting plates 312 are connected to the cross beam, the supporting plate 312 forms a supporting structure between the cross beam and the bracket 30, so that the transverse rigidity of the joint of the bracket 30 and the longitudinal beam is increased, the vehicle is ensured to have better running performance, and the safety of the vehicle is improved.

In the preferred embodiment, the cross section of the longitudinal beam 10 is configured like a G, specifically, an upward extending vertical supporting wall 131 is disposed at the inner edge of the bottom wall 13, a horizontal supporting wall 132 extending in a direction away from the side wall 11 is disposed at the top of the vertical supporting wall 131, which is equivalent to forming a step on the bottom wall 131 by bending, and bending the upper edge of the step inward to form the horizontal supporting wall 132, an opening on the longitudinal beam 10 is located between the horizontal supporting wall 132 and the top wall 12, after the end of the cross beam penetrates into the longitudinal beam 10 through the opening, the lower surface of the cross beam is supported by the horizontal supporting wall 132, and the lower surface of the cross beam is welded on the horizontal supporting wall 132, the top of the inner wall plate 31 is abutted against the inner surface of the vertical supporting wall 131, and the inner wall 31 is welded and fixed with the vertical supporting wall 131, or is fixed by adopting a bolt connection mode, the cross beam includes two vertical mating surfaces, the two mating surfaces are respectively welded on the two mating surfaces, for example, when the two square tubes 31 are formed by two side surfaces, namely, the two side surfaces are formed by using the two side surfaces; the top of the supporting plate 312 protrudes from the top of the inner wall plate 31, that is, the upper edge of the supporting plate 312 is higher than the top of the inner wall plate 31, after the inner plate 31 is attached to the inner surface of the vertical supporting wall 131, at least a part of the top of the supporting plate 312 can protrude from the upper surface of the horizontal supporting wall 132, so that the supporting plate 312 can be attached to the matching surface of the cross beam, and has a relatively large matching area with the matching surface, and then a large welding area is formed between the supporting plate 312 and the matching surface, so that the welding strength between the supporting plate 312 and the cross beam can meet the requirement.

In the above-mentioned scheme, since two support plates 312 are formed on the inner wall plate 31, the space between the two support plates 312 corresponds to the width of the inner wall plate 31, if the cross beam adopts an integral member such as a square tube, the two support plates 312 must be welded on both sides of the cross beam, so that the width of the cross beam needs to correspond to the width of the inner wall plate 31, resulting in a large cross beam width, and the overall weight of the carriage assembly is difficult to control, therefore, the cross beam may include two cross beam units 20 and two end plates 24, the two cross beams 20 are welded and fixed with the two end plates 24, specifically, the extending direction of the two cross beam units 20 is consistent with the width direction of the carriage assembly, and the two cross beam units 20 are staggered by a certain distance in the length direction of the carriage assembly, the two end plates 24 are respectively connected between the ends of the two cross beam units 20, the beam unit 20 may be formed by bending a plate member, and the cross-sectional shape thereof is substantially Z-shaped, specifically, the beam unit 20 includes a web 21, an upper wing plate 22 formed by bending the top of the web 21 toward one side of the web 21, and a lower wing plate 23 formed by bending the bottom of the web 21 toward the other side of the web 21, after the end of the beam unit 20 is penetrated into the side member 10 from the opening of the side member 10, the upper wing plate 22 of the beam unit 20 is abutted against the lower surface of the top wall 12, the top wall 12 and the upper wing plate 22 may be fixed by welding or by bolting, the lower wing plate 23 is abutted against the upper surface of the horizontal supporting wall 132, and the lower wing plate 23 and the horizontal supporting wall 132 may be fixed by welding or bolting. The two mating surfaces are respectively located on the lateral sides of the webs 21 of the two beam units 20, and the space between the two beam units 20 can be adjusted according to the width of the inner wall plate 31, so that the two support plates 312 on the inner wall plate 31 can be well attached to the lateral sides of the webs 21 of the two beam units 20, and welding between the support plates 312 and the webs 21 is facilitated. In order to make the welding area relatively large to increase the welding strength, the width of the upper wing plate 22 where it is matched with the top wall 12 is larger than the width of other parts of the upper wing plate 22, that is, the width of the upper wing plate 22 where the end part of the upper wing plate 22 is penetrated into the opening is set to be relatively large to increase the matching area of the upper wing plate 22 and the top wall 12, thereby increasing the welding strength; the width of the matching part of the lower wing plate 23 and the horizontal supporting wall 132 is larger than the width of other positions of the lower wing plate 23, so that the matching area of the lower wing plate 23 and the horizontal supporting wall 132 is increased to increase the welding strength between the lower wing plate 23 and the horizontal supporting wall 132, and the width of the matching part of the horizontal supporting wall 132 and the lower wing plate 23 is larger than the width of other positions of the horizontal supporting wall 132, so that the welding strength between the horizontal supporting wall 132 and the lower wing plate 23 is further increased. In other embodiments, the cross section of the beam unit 20 may be C-shaped, that is, the upper wing plate 22 and the lower wing plate 23 are located on the same side of the web 21, and the two beam units 20 are disposed opposite to each other, so that the sides of the webs 21 of the two beam units 20 facing away from each other form a mating surface welded with the two support plates 312.

A supporting member 25 is further disposed on the outer side of the cross member unit 20 near the end of the longitudinal beam 10, the top of the supporting member 25 is connected to the lower surface of the upper wing plate 22, the bottom of the supporting member 25 is connected to the longitudinal beam 10, and both sides of the bottom of the supporting member 25 may be welded to the side wall 11 and the vertical supporting wall 131, respectively, or the bottom of the supporting member 25 may be welded to the upper surface of the bottom wall 13. The support 25 is at the end of the stringers 10 and serves the purpose of collision avoidance.

The connecting piece 33 of the bracket 30 is U-shaped, both sides of which are welded and fixed to the inner wall plate 31 and the outer wall plate 32, respectively, and both ends of the connecting piece 33 are welded and fixed to the lower surface of the bottom wall 13. A reinforcing member 331 is provided below the connection member 33, the reinforcing member 331 is abutted against the lower surface of the connection member 33, both sides of the reinforcing member 331 are respectively provided with a reinforcing plate extending downward, and both reinforcing plates are respectively abutted against and welded to the outer wall plate 32 and the inner wall plate 31. The connecting piece 33, after being connected with the inner wall plate 31 and the outer wall plate 32, forms the bracket 30 into a U-shaped structure with an upper opening, embeds the bottom of the longitudinal beam 10 from the U-shaped opening of the bracket 30, so that the top of the outer wall plate 32 is abutted against and connected to the side wall 11 outside the longitudinal beam 10, and the top of the inner wall plate 31 is abutted against and connected to the vertical supporting wall 131 inside the longitudinal beam 10; a supporting part is arranged on the opposite surfaces of the inner wall plate 31 and the outer wall plate 32, and after the longitudinal beam 10 is matched with the bracket 30, two sides of the bottom wall 13 are respectively arranged on the supporting parts on the outer wall plate 32 and the inner wall plate 31; the boss 314 is provided on the inner wall plate 31 in a protruding manner on the surface opposite to the outer wall plate 32, the supporting portion 315 is formed on the top of the boss 314, the boss 321 is provided on the outer wall plate 32 in a protruding manner on the surface opposite to the inner wall plate 31, the supporting portion 322 is formed on the top of the boss 321, the portion of the inner wall plate 31 above the boss 314 is abutted against the inner surface of the vertical supporting wall 131, the portion of the outer wall plate 32 above the boss 321 is abutted against the outer surface of the side wall 11, the distance between the boss 321 on the outer wall plate 32 and the boss 314 on the inner wall plate 31 is D1, the distance between the portion of the outer wall plate 32 above the boss 321 and the portion of the inner wall plate 31 above the boss 314 is D2, wherein D2 is larger than D1, the boss 314 and the boss 321 are utilized to provide support to the two sides of the bottom wall 13, so that when the longitudinal beam 10 is assembled on the bracket 30, the longitudinal beam 10 and the bracket 30 are positioned, and the connection strength of the longitudinal beam 10 and the bracket 30 can be further improved.

It should be noted that in the above-described embodiment of the present utility model, the vertical supporting wall 131 and the horizontal supporting wall 132 are provided on the bottom wall 13 of the side member 10, so that the cross section of the side member 10 forms a G-like configuration, and the top of the inner wall plate 31 can abut against the vertical supporting wall plate 131; in other embodiments, the longitudinal beam 10 may be configured in a C shape, i.e., the horizontal supporting wall 132 is omitted, or the bottom wall 13 is configured in a straight state, the vertical supporting wall 131 is omitted, the top of the inner wall plate 31 is directly abutted on the lower surface of the bottom wall 13 of the longitudinal beam 10, and the supporting plates 312 on both sides of the inner wall plate 31 are connected to the mating surfaces of the cross beam.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that modifications may be made to the technical solutions described in the foregoing embodiments or equivalents may be substituted for some of the technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model in essence.

Claims

1. The sliding frame assembly of the trailer is characterized by comprising two longitudinal beams, a plurality of cross beams connected between the two longitudinal beams and a suspension system;

2. The trailer carriage assembly of claim 1 wherein the connector is U-shaped and has two sides welded to the outer and inner wall panels, respectively, and two ends welded to the lower surface of the bottom wall.

3. The trailer carriage assembly of claim 2 wherein a stiffener is provided below the connector and abuts a lower surface of the connector, the stiffener being provided on each side with a downwardly extending stiffener plate which abuts and is welded to the outer and inner wall plates, respectively.

4. The carriage assembly of the trailer as claimed in claim 1, wherein the inner edge of the bottom wall is provided with a vertical supporting wall extending upward and a horizontal supporting wall extending from the top of the vertical supporting wall in a direction away from the side wall, the opening being located between the horizontal supporting wall and the top wall, and the lower surface of the cross member being welded and fixed to the upper surface of the horizontal supporting wall; the top of the inner wall plate is attached to and welded to the inner surface of the vertical supporting wall, the cross beam comprises two vertical matching surfaces staggered by a certain distance along the length direction of the longitudinal beam, and the two supporting plates are attached to and welded to the two matching surfaces respectively.

5. The trailer carriage assembly of claim 4 wherein the top of the support plate projects upwardly from the top of the inner wall plate, and wherein a relief recess is formed in the support plate for relieving the horizontal support wall.

6. The carriage assembly of the trailer as claimed in claim 4, wherein the cross beam comprises two cross beam units and two end plates connected between both end portions of the two cross beam units, the cross beam units comprise a web, an upper wing plate positioned at the top of the web, and a lower wing plate positioned at the bottom of the web, the upper wing plate being abutted against and connected with the lower surface of the top wall, the lower wing plate being abutted against and connected with the upper surface of the horizontal support wall; the two matching surfaces are respectively positioned on webs of the two beam units.

7. The trailer carriage assembly of claim 6 wherein the upper wing panel has a width at the engagement with the top wall that is greater than the width at other locations of the upper wing panel; the width of the matching part of the lower wing plate and the horizontal supporting wall is larger than the width of other positions of the lower wing plate; the width of the matching part of the horizontal supporting wall and the lower wing plate is larger than that of other positions of the horizontal supporting wall.

8. The trailer carriage assembly of claim 6 wherein a support member is provided on the outside of the cross member unit adjacent the end of the side member, the support member having a top portion attached to the lower surface of the upper wing and a bottom portion attached to the side member.

9. The trailer carriage assembly of claim 1 wherein the outer wall plate and the inner wall plate each define a support portion on opposite sides thereof, and wherein the bottom wall is disposed on the support portions of the outer wall plate and the inner wall plate, respectively.

10. The trailer carriage assembly of claim 9 wherein the outer wall plate and the inner wall plate are each provided with a projection projecting from opposite sides thereof, the support portion being located at a top of the projection, the connector being located between the projection of the outer wall plate and the projection of the inner wall plate, the spacing between the projection on the outer wall plate and the projection on the inner wall plate being D1, and the spacing between the portion of the outer wall plate above the projection and the portion of the inner wall plate above the projection being D2, wherein D2 is greater than D1.