CN110884512B

CN110884512B - Concave bottom frame structure and piggyback transport vehicle

Info

Publication number: CN110884512B
Application number: CN201911223377.2A
Authority: CN
Inventors: 赵玉叶; 时嘉宏; 郑官兴; 王文; 白雪; 吴振国
Original assignee: China Shenhua Energy Co Ltd; CRRC Qiqihar Rolling Stock Co Ltd; Shenhua Railway Equipment Co Ltd
Current assignee: China Shenhua Energy Co Ltd; CRRC Qiqihar Rolling Stock Co Ltd; Shenhua Railway Equipment Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2024-05-24
Anticipated expiration: 2039-12-03
Also published as: CN110884512A

Abstract

The invention provides a concave bottom frame structure and a piggyback transport vehicle. Wherein, concave underframe structure includes: the side bearing assembly comprises a floor assembly, a pincer-shaped frame assembly, a cab apron assembly, at least two side wall assemblies, a first end beam assembly, a floor protection assembly, a second end beam assembly, a protective cover assembly, a reinforcing beam assembly and a side bearing assembly matched with external equipment. The invention solves the problem of poor bearing capacity of the concave bottom frame in the prior art.

Description

Concave bottom frame structure and piggyback transport vehicle

Technical Field

The invention relates to the technical field of piggyback transportation, in particular to a concave bottom frame structure and a piggyback transport vehicle.

Background

The railway piggyback transportation can meet the requirements of rapid, various and flexible freight transportation, and takes a highway truck, a semitrailer and a container as main transportation objects. The semitrailer can be separated from the tractor, so that the weight of piggyback transportation is reduced, and compared with a highway truck, the semitrailer is more economical and quicker and is a main piggyback transportation mode.

The existing concave bottom frames for piggyback transport vehicles are low in bearing capacity, cannot be suitable for bearing equipment such as whole highway vehicles and semitrailers, are single in function and poor in universality, and cannot meet the use requirements of container and other device transportation.

Disclosure of Invention

The invention mainly aims to provide a concave bottom frame structure and a piggyback transport vehicle, which are used for solving the problem of poor bearing capacity of the concave bottom frame in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a concave chassis structure comprising: a floor assembly for carrying the parts to be fed; the pincer-shaped frame assembly is connected with one end of the floor assembly; the cab apron assembly is connected with the pincer-shaped frame assembly, at least one part of the cab apron assembly can move relative to the floor assembly, and a conveying inclined plane for conveying the to-be-conveyed piece can be formed; the bottom of the side wall components is connected with the floor component, and the side wall components and the floor component jointly enclose a containing area for containing the to-be-sent piece, and one end of the side wall components is connected with the pincer-shaped frame component; the first end beam assembly is positioned at one end of the floor assembly and is connected with the floor assembly and the side wall assembly through the pincer-shaped frame assembly; the floor protection assembly is arranged at the outer bottom of the floor assembly and supports the floor assembly when the concave bottom frame structure is contacted with the ground; the second end beam assembly is connected with the floor assembly and is positioned at one end of the floor assembly far away from the pincer-shaped frame assembly; the protective cover assembly is embedded on the floor assembly, and the extending direction of the protective cover assembly is the same as that of the floor assembly; the stiffening beam assembly is connected with the side wall assembly and is positioned at one end of the side wall assembly, which is far away from the pincer-shaped frame assembly; and the side bearing assembly is used for being matched with external equipment, is connected with the side wall assembly and is positioned at one end of the side wall assembly away from the pincer-shaped frame assembly.

Further, the floor assembly comprises at least two floor bodies arranged in groups, the to-be-sent piece can be borne on the floor bodies, the two floor bodies arranged in groups are arranged in parallel at intervals, and the protective cover assembly is positioned between the two floor bodies.

Further, the floor main body includes: a longitudinal beam; the side beams, the longitudinal beams and the side beams extend along the length direction of the floor assembly, and are arranged at intervals; the length direction of the small cross beams is perpendicular to the length direction of the floor assembly, and the small cross beams are sequentially arranged at intervals along the length direction of the floor assembly.

Further, along the length direction of the floor assembly, the floor assembly is divided into a transition section and a bearing section, the transition section is closer to the cab apron assembly than the bearing section, the small cross beam is arranged on the bearing section, the floor main body further comprises an end plate, the end plate is arranged on the transition section, and two sides of the end plate are respectively connected with the longitudinal beam and the side beam.

Further, the floor main body further comprises a large cross beam, and the length direction of the large cross beam is perpendicular to the length direction of the floor assembly and is positioned between the transition section and the receiving section.

Further, the floor assembly also includes a cross member located at the transition section and disposed between two floor main bodies disposed in a group, the cross member including: an upper plate; the upper plate and the lower plate are respectively connected with the top and the bottom of the floor main body; and the upper end and the lower end of the vertical plate are respectively connected with the upper plate and the lower plate, and the two sides of the vertical plate are respectively connected with the two floor main bodies which are arranged in pairs.

Further, the floor assembly further comprises: the cover plate is positioned at the transition section and is connected with the side walls of the two floor main bodies which are arranged in groups and are close to each other; and the limiting plate is positioned on the receiving section and connected with the small cross beam so as to control the position of the workpiece to be fed into the accommodating area.

Further, the floor assembly further comprises: the safety plate is connected with the floor main body and is positioned at one end of the floor main body close to the cab apron assembly; the connecting plate is positioned between the two floor main bodies arranged in a group and connected with the floor main bodies, and the connecting plate is positioned at one end of the floor main bodies, which is close to the cab apron assembly.

Further, the pincer-like rack assembly includes: the pincer-shaped frame support is connected with the floor assembly; the ground support is connected with the bottom of the pincer-shaped frame support and contacts the ground when the pincer-shaped frame assembly is placed on the ground; the vertical support is connected with the pincer-shaped frame support, extends along the length direction of the floor assembly and is connected with the first end beam assembly; the bending plate is connected with the clamp frame in a supporting way and is provided with a groove matched with the first end beam component; the lifting frame is movably connected with the clamp frame support and can be abutted on the ground so as to lift the clamp frame assembly.

Further, the ferry plate assembly includes: the fixing plate is connected with the pincer-shaped frame assembly; the turnover plate is rotatably connected with the fixed plate through the connecting rotating plate, and one end of the turnover plate far away from the fixed plate can be turned downwards to form a conveying inclined plane for conveying the to-be-conveyed piece.

Further, the sidewall assembly includes: a girder is arranged; a lower beam; the side columns are connected with the upper beam and the lower beam, are obliquely arranged relative to the upper beam and/or the lower beam and form an included angle with the upper beam and/or the lower beam; the upper cover plate is arranged at the upper inclined section in a covering way, and one end of the upper beam, which is close to the pincer-shaped frame assembly, is inclined towards the direction close to the lower beam to form an upper inclined section; and one end of the lower beam, which is far away from the upper cover plate, is inclined towards the direction close to the upper beam to form a lower inclined section, and the lower cover plate is covered at the lower inclined section.

Further, the floor protection assembly includes: a bottom sealing plate; the bottom guard plate, the bottom guard plate is connected with the bottom of floor assembly, and the both sides of bottom guard plate are provided with the bottom shrouding to the bottom guard plate has the protection inclined plane of following floor assembly's length direction slope.

Further, the second end beam assembly includes: a support plate; a first cross beam; a second cross beam; the first cross beam, the second cross beam and the third cross beam are all connected with the supporting plate and are sequentially connected along the width direction of the floor assembly; the baffle is connected with the side edge of the supporting plate and extends upwards to control the movement range of the to-be-sent piece.

Further, the protective cover assembly comprises a plurality of protective plates, the protective plates are located between two floor main bodies arranged in groups, all the protective plates are arranged in groups, the protective plates in each group are sequentially connected, the protective plates in each group are sequentially arranged at intervals along the length direction of the floor assembly, and a cross beam is arranged between at least two groups of protective plates.

Further, the stiffening beam assembly includes: the bottom plate is positioned below the upper cover plate and connected with the side wall assembly; at least two support plates which are vertically arranged and connected with the bottom plate and the upper cover plate; the sealing plate is vertically arranged between the support plates and connected with the bottom plate and the upper cover plate, and the planes of the support plates and the sealing plate are perpendicular to the length direction of the floor assembly; the partition plate is vertically arranged and connected with the bottom plate and the upper cover plate, and is arranged at intervals with the support plate along the length direction of the floor assembly.

Further, the stiffening beam assembly further comprises: the support beam is connected with the bottom surface of the upper cover plate; the rib plates are positioned on two sides of the supporting beam and are connected with the supporting beam and the upper cover plate.

Further, the side bearing assembly includes: the side plates are vertically arranged and respectively connected with the side wall components; the connecting beam is used for connecting at least one part of the side plate with the side wall assembly; the seat board is connected with the bottom of the side board; the wearing plate is connected with the bottom of the seat plate; the adjusting base plate is arranged between the seat plate and the wearing plate; the shielding plate is arranged between the two side plates and connected with the side plates, and the plane where the shielding plate is arranged is perpendicular to the plane where the side plates are arranged.

Further, the concave underframe structure further comprises a locking assembly, and the locking assembly is connected with the side wall assembly to lock the to-be-sent piece on the concave underframe structure.

Further, the concave chassis structure further includes: a rotating assembly for mounting the receiving member, the rotating assembly being coupled to the bottom of the floor assembly and being rotatable with respect to the floor assembly; and an anti-falling component is arranged between the rotating component and the floor component.

According to another aspect of the invention there is provided a piggyback transport comprising the concave chassis structure described above.

By adopting the technical scheme of the invention, through the mutual coordination of the components and adopting a new structure without a middle beam and a side wall structure for carrying and welding a car body, the technical key of the traditional structural design concept and the lightweight car body design of the railway freight car is broken through, the structural style of the concave bottom frame structure is optimized, the load transmission path and the car body stress state of the concave bottom frame structure are improved, and the integral carrying capacity of the concave bottom frame structure and the longitudinal carrying capacity of the car body are improved so as to adapt to the use requirements of carrying the whole car and the semitrailer of a highway and simultaneously take into account the use requirements of container transportation, thereby solving the technical problems of multifunction and strong universality of the project.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 shows a front view of a concave chassis structure of the present invention;

FIG. 2 shows a top view of the concave chassis structure of FIG. 1;

FIG. 3 shows a side view of the concave chassis structure of FIG. 1;

FIG. 4 shows a cross-sectional view of FIG. 1;

FIG. 5 illustrates a schematic structural view of the floor assembly of the recessed floor structure of FIG. 1;

Fig. 6 shows a front view of fig. 5;

FIG. 7 shows a schematic view of the cross member of the concave chassis structure of FIG. 1;

FIG. 8 shows a top view of FIG. 7;

Fig. 9 shows a side view of fig. 7;

FIG. 10 shows a schematic diagram of the clamp-on bracket assembly of the concave bottom bracket structure of FIG. 1;

FIG. 11 shows a top view of FIG. 10;

FIG. 12 shows a side view of FIG. 10;

FIG. 13 illustrates a schematic construction of a cab apron assembly of the recessed floor structure of FIG. 1;

Fig. 14 shows a top view of fig. 13;

FIG. 15 is a schematic view showing the structure of the connection swivel plate of FIG. 13;

FIG. 16 shows a schematic structural view of a side wall assembly of the recessed floor structure of FIG. 1;

FIG. 17 illustrates a schematic view of the floor shield assembly of the recessed floor frame structure of FIG. 1;

FIG. 18 shows a side cross-sectional view of FIG. 17;

FIG. 19 illustrates a schematic construction of a second end beam assembly of the concave chassis structure of FIG. 1;

FIG. 20 shows a top view of FIG. 19;

FIG. 21 shows a side view of a portion of the structure of FIG. 19;

FIG. 22 shows a schematic structural view of the protective cover assembly of the concave chassis structure of FIG. 1;

FIG. 23 shows a schematic structural view of the reinforcement beam assembly of the concave chassis structure of FIG. 1;

FIG. 24 shows a top view of FIG. 23;

fig. 25 shows a side view of fig. 23;

FIG. 26 shows a cross-sectional view taken along the direction A-A in FIG. 24;

FIG. 27 shows a schematic view of the side bearing assembly of the concave chassis structure of FIG. 1; and

Fig. 28 shows a side view of fig. 27.

Wherein the above figures include the following reference numerals:

10. A floor assembly; 11. a floor main body; 111. a longitudinal beam; 112. edge beams; 113. a small cross beam; 114. an end plate; 115. a large cross beam; 12. a transition section; 13. a receiving section; 14. a middle cross beam; 141. an upper plate; 142. a lower plate; 143. a vertical plate; 15. a cover plate; 16. a limiting plate; 17. a security plate; 18. a connecting plate; 19. a guard board; 20. a pincer-like rack assembly; 21. a pincer-shaped frame support; 22. a ground support; 23. a vertical support; 24. a bending plate; 25. a lifting frame; 30. a cab apron assembly; 31. a fixing plate; 32. turning plate; 33. connecting a rotating plate; 40. a side wall assembly; 41. a girder is arranged; 42. a lower beam; 43. a side column; 44. an upper cover plate; 45. a lower cover plate; 50. a first end beam assembly; 60. a floor protection assembly; 61. a bottom sealing plate; 62. a bottom guard plate; 70. a second end beam assembly; 71. a support plate; 72. a first cross beam; 73. a second cross beam; 74. a third cross beam; 75. a baffle; 80. a protective cover assembly; 81. a protection plate; 90. a stiffening beam assembly; 91. a bottom plate; 92. a support plate; 93. a sealing plate; 94. a partition plate; 95. a support beam; 96. rib plates; 100. a side bearing assembly; 101. a side plate; 102. a connecting beam; 103. a seat plate; 104. a wear plate; 105. adjusting the backing plate; 106. a shielding plate; 110. a locking assembly; 120. a rotating assembly; 130. and the anti-falling component.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.

In order to solve the problem of poor bearing capacity of a concave bottom frame in the prior art, the invention provides a concave bottom frame structure and a piggyback transport vehicle. Wherein the piggyback transport has a concave bottom frame structure as described below.

A concave chassis structure as shown in fig. 1 to 4, comprising a floor assembly 10 for carrying a workpiece to be conveyed, a pincer-shaped frame assembly 20, a cab apron assembly 30, at least two side wall assemblies 40, a first end beam assembly 50, a floor protection assembly 60, a second end beam assembly 70, a protective cover assembly 80, a reinforcing beam assembly 90, and a side bearing assembly 100 for cooperating with external equipment, wherein the pincer-shaped frame assembly 20 is connected to one end of the floor assembly 10; the cab apron assembly 30 is connected to the pincer-like frame assembly 20, and at least a portion of the cab apron assembly 30 is movable relative to the floor assembly 10 and is capable of forming a conveying ramp for transporting a workpiece to be conveyed; the bottom of the side wall assembly 40 is connected with the floor assembly 10 and encloses a containing area for containing the to-be-sent piece together with the floor assembly 10, and one end of the side wall assembly 40 is connected with the pincer-shaped frame assembly 20; the first end beam assembly 50 is positioned at one end of the floor assembly 10 and is connected to the floor assembly 10 and the side wall assembly 40 by the clip-on bracket assembly 20; the floor protection assembly 60 is disposed at an outer bottom of the floor assembly 10 and supports the floor assembly 10 when the concave chassis structure is in contact with the ground; the second end beam assembly 70 is connected to the floor assembly 10 and is located at an end of the floor assembly 10 remote from the pincer-like shelf assembly 20; the protective cover assembly 80 is embedded on the floor assembly 10, and the extending direction of the protective cover assembly 80 is the same as the extending direction of the floor assembly 10; the reinforcement beam assembly 90 is connected to the side wall assembly 40 and is located at an end of the side wall assembly 40 remote from the pincer-like shelf assembly 20; the side bearing assembly 100 is coupled to the side wall assembly 40 and is located at an end of the side wall assembly 40 remote from the pincer-like shelf assembly 20.

According to the embodiment, through mutual matching among the components, a new structure without a middle beam and a side wall structure is adopted for carrying and welding a car body, the key of the traditional structural design concept of a railway wagon and the technical key of the lightweight car body design are broken through, the structural type of the concave bottom frame structure is optimized, the load transmission path of the concave bottom frame structure and the stress state of the car body are improved, the integral carrying capacity of the concave bottom frame structure and the longitudinal carrying capacity of the car body are improved, so that the whole car and the semitrailer of a highway are carried in adaptation, and meanwhile, the use requirement of container transportation is met, and the technical problems of multifunction and high universality of the project are solved.

In this embodiment, the to-be-sent member is taken as an example of a vehicle, and accordingly, the tire of the vehicle is carried on the concave chassis structure. Of course, the concave chassis structure of the present embodiment can carry not only vehicles but also containers and other devices.

As shown in fig. 5 and 6, the floor assembly 10 includes two floor bodies 11 arranged in a group, the floor bodies 11 have a long length, the two floor bodies 11 arranged in a group are arranged in parallel at intervals, and the protective cover assembly 80 is located between the two floor bodies 11, when a vehicle enters into a concave chassis structure, tires on both sides of the vehicle can be respectively carried on the two floor bodies 11 to ensure reliable carrying of the vehicle, the protective cover assembly 80 can protect the bottom of the vehicle, and the automatic piping device is convenient to overhaul at the same time.

In the present embodiment, the floor main body 11 includes a longitudinal beam 111, a side beam 112, and a plurality of small cross beams 113, the longitudinal beam 111 and the side beam 112 extending in the longitudinal direction of the floor assembly 10 with a space therebetween; the length direction of the small cross beams 113 is perpendicular to the length direction of the floor assembly 10, the small cross beams 113 are erected at intervals of the longitudinal beams 111 and the side beams 112, and a plurality of small cross beams 113 are sequentially arranged at intervals along the length direction of the floor assembly 10. The arrangement mode can greatly improve the structural strength of the floor main body 11, improve the bearing capacity of the floor main body 11 and improve the stress condition of the floor main body 11.

The floor assembly 10 of the present embodiment is divided into a transition section 12 and a receiving section 13 along the length direction thereof, the transition section 12 is closer to the cab apron assembly 30 than the receiving section 13, the longitudinal beams 111 and the side beams 112 extend to the whole transition section 12 and the receiving section 13, the small cross beams 113 are only arranged at the receiving section 13, the floor main body 11 further comprises an end plate 114, the end plate 114 is arranged at the transition section 12, and two sides of the end plate 114 are respectively connected with the longitudinal beams 111 and the side beams 112. The main difference between the transition section 12 and the receiving section 13 is that the transition section 12 is mainly used for passing a tire, does not play a main supporting role, and plays a main supporting role, namely, the receiving section 13 is used for receiving the tire when the vehicle stably stops on the concave underframe structure, and the tire is located in the receiving section 13, and the transition section 12 does not need a structure with higher bearing capacity like the receiving section 13 because the functions of the transition section 12 and the receiving section 13 are different, so that the transition section 12 is directly connected with the longitudinal beam 111 and the side beam 112 into a whole by using the end plate 114. Of course, the transition section 12 can also be provided in the same structure as the receiving section 13, if special needs exist.

In this embodiment, the floor body 11 further includes a large cross member 115, and the length direction of the large cross member 115 is perpendicular to the length direction of the floor assembly 10 and is located between the transition section 12 and the receiving section 13. The large cross members 115 can strengthen the connection between the transition section 12 and the receiving section 13 to ensure the overall load carrying capacity and structural strength of the floor assembly 10.

As shown in fig. 1, the floor assembly 10 further comprises a cross member 14, the cross member 14 being located at the transition section 12 and being arranged between two floor main bodies 11 arranged in a group, thereby providing a lateral support for the floor main bodies 11.

Specifically, as shown in fig. 7 to 9, the inter beam 14 includes an upper plate 141, a lower plate 142, and a vertical plate 143, the upper plate 141 and the lower plate 142 being respectively connected to the top and bottom of the floor main body 11; the upper and lower ends of the standing plate 143 are connected to the upper and lower plates 141 and 142, respectively, and both sides of the standing plate 143 are connected to the two floor main bodies 11 provided in pairs, respectively. The upper plate 141, the lower plate 142 and the standing plate 143 enclose a rectangular structure, thereby providing lateral supporting force to the two floor main bodies 11.

As shown in fig. 5, the floor assembly 10 further comprises a cover plate 15, a guard plate 19 and a limiting plate 16, wherein the cover plate 15 is positioned at the transition section 12 and is connected with the side walls of the two floor main bodies 11 which are arranged in groups and are close to each other; a guard plate 19 is provided at the bottom of the cover plate 15 to protect the cover plate 15; the limiting plate 16 is located on the receiving section 13 and is connected with the small cross beam 113 so as to control the position of the to-be-sent piece entering the accommodating area.

In this embodiment, the floor assembly 10 further includes at least one safety plate 17 and a connecting plate 18, where the safety plate 17 is connected to the floor main body 11 and located at an end of the floor main body 11 near the cab apron assembly 30, and the safety plate 17 can play a role in protecting the floor assembly 10; the connecting plate 18 is located between the two floor main bodies 11 arranged in groups and is connected with the floor main bodies 11, the connecting plate 18 is located at one end of the floor main bodies 11 close to the cab apron assembly 30, and the arrangement of the connecting plate 18 facilitates the connection and matching of the floor assembly 10 with other assemblies.

As shown in fig. 10 to 12, the pincer-shaped frame assembly 20 includes a pincer-shaped frame support 21, a ground support 22, a vertical support 23, a bent plate 24 and a lifting frame 25, the pincer-shaped frame support 21 has a concave shape, and the bottom of the concave shape is connected with the floor assembly 10; the ground support 22 is connected to the outer bottom of the pincer support 21, and when the pincer assembly 20 is placed on the ground, the ground support 22 contacts the ground, thereby supporting the pincer assembly 20; the vertical support 23 is connected with the pincer-shaped frame support 21 and extends along the length direction of the floor assembly 10, the vertical support 23 is connected with the first end beam assembly 50, and the vertical support 23 can play a certain role in transversely supporting the pincer-shaped frame assembly 20 on one hand and can be matched with the first end beam assembly 50 on the other hand so as to be convenient to connect; the bending plate 24 is connected with the pincer-shaped frame support 21 and provided with a groove matched with the first end beam assembly 50, the bending plate 24 mainly plays a role of connecting the first end beam assembly 50, and the bending plate 24 is reliably connected with the first end beam assembly 50 through the groove on the bending plate 24; the lifting frames 25 are arranged on two sides of the pincer-shaped frame support 21 and are in telescopic connection with the pincer-shaped frame support 21, and the lifting frames 25 can be abutted on the ground and support the pincer-shaped frame assembly 20 to move upwards integrally so as to lift the pincer-shaped frame assembly 20.

As shown in fig. 13 to 15, the cab apron assembly 30 includes a fixing plate 31 and a flap 32, the fixing plate 31 being fixedly connected with the pincer-like frame assembly 20; the turning plate 32 is rotatably connected with the fixed plate 31 through the connecting rotating plate 33, and one end of the turning plate 32 far away from the fixed plate 31 can be turned downwards to form a conveying inclined plane for conveying the to-be-conveyed piece so as to facilitate the vehicle to be conveyed into the concave underframe structure.

As shown in fig. 16, the side wall assembly 40 includes an upper beam 41, a lower beam 42, side columns 43, an upper cover plate 44 and a lower cover plate 45, the side columns 43 are connected with the upper beam 41 and the lower beam 42, the side columns 43 are inclined with respect to the upper beam 41 and/or the lower beam 42 and form an included angle with the upper beam 41 and/or the lower beam 42, and the inclined side columns 43 can form a triangle or trapezoid structure with the upper beam 41 and the lower beam 42, which is beneficial to improving the structural strength of the side wall assembly 40; one end of the upper beam 41, which is close to the pincer-shaped frame assembly 20, is inclined to a direction close to the lower beam 42 and forms an upper inclined section, and an upper cover plate 44 is covered at the upper inclined section; the end of the lower beam 42 remote from the upper cover plate 44 is inclined in a direction approaching the upper beam 41 and forms a lower inclined section, and the lower cover plate 45 is provided at the lower inclined section.

As shown in fig. 17 and 18, the floor protection assembly 60 includes a bottom closing plate 61 and a bottom protection plate 62, the bottom protection plate 62 is connected to an outer bottom of the floor assembly 10, both sides of the bottom protection plate 62 are provided with the bottom closing plate 61, and a bottom surface of the bottom protection plate 62 has a protection slope inclined in a length direction of the floor assembly 10. When the recessed floor frame structure is placed on the ground, the floor assembly 10 will not be in direct contact with the ground, and the bottom shield 62 will be in direct contact with the ground, thereby providing some support protection to the floor assembly 10. While the inclined protective bevel facilitates improving the support protection performance of the floor protection assembly 60 and improving the service life of the bottom protection plate 62.

As shown in fig. 19 to 21, the second end beam assembly 70 includes a support plate 71, a first beam 72, a second beam 73, a third beam 74, and a baffle 75, the first beam 72, the second beam 73, and the third beam 74 are all connected to the support plate 71, and the first beam 72, the second beam 73, and the third beam 74 are sequentially connected in the width direction of the floor assembly 10; a shutter 75 is connected to a side of the support plate 71 and extends upward to control a movement range of the workpiece to be fed. The first end beam assembly 50 and the second end beam assembly 70 serve as end assemblies of the floor assembly 10, and the structural strength of the floor assembly 10 is further enhanced, and meanwhile the floor assembly 10 can be conveniently connected with other assemblies, so that the concave bottom frame structure is optimized.

As shown in fig. 22, the protective cover assembly 80 includes a plurality of protective plates 81, the protective plates 81 are located between two floor main bodies 11 arranged in groups, all the protective plates 81 are arranged in groups, the protective plates 81 in each group are sequentially connected, the protective plates 81 in each group are sequentially arranged at intervals along the length direction of the floor assembly 10, and a cross beam 14 is arranged between at least two groups of protective plates 81. The specific shape of each protection plate 81 can be set correspondingly according to specific conditions, and the protection cover assembly 80 of the embodiment is formed by welding four protection plates 81 with different shapes, and the protection plates 81 are detachably connected with the floor main body 11 and the cross beam 14, so that the automatic piping device can be overhauled conveniently.

As shown in fig. 23 to 25, the reinforcing beam assembly 90 is integrally disposed at the upper cover plate 44 of the side wall assembly 40, the reinforcing beam assembly 90 includes a bottom plate 91, at least two support plates 92, a sealing plate 93 and a partition plate 94, the bottom plate 91 is located below the upper cover plate 44, and at least two sides of the bottom plate 91 are connected with the side wall assembly 40 at intervals between the upper cover plates 44; the support plate 92 is vertically arranged and connected with the bottom plate 91 and the upper cover plate 44 to serve as a support between the upper cover plate 44 and the bottom plate 91, so that the structural strength of the upper cover plate and the bottom plate is enhanced; the sealing plates 93 are vertically arranged between the supporting plates 92 and connected with the bottom plate 91 and the upper cover plate 44, the planes of the supporting plates 92 and the sealing plates 93 are perpendicular to the length direction of the floor assembly 10, two supporting plates 92 are arranged on the same vertical surface, the sealing plates 93 are arranged between the two supporting plates 92, and the two supporting plates 92 and the sealing plates 93 are arranged on the same vertical surface; the partition 94 is vertically disposed and connected to the bottom plate 91 and the upper cover plate 44, and the partition 94 is spaced from the support plate 92 along the length of the floor assembly 10, and the partition 94 also provides support between the upper cover plate 44 and the bottom plate 91, thereby further improving the structural strength between the upper cover plate 44 and the bottom plate 91. The provision of the stiffening beam assembly 90 described above increases the overall strength and load carrying capacity of the concave chassis structure while facilitating end bearing and articulation connector connection.

Optionally, as shown in fig. 24 and 26, the stiffening beam assembly 90 further includes a support beam 95 and at least two rib plates 96, the support beam 95 being connected to the bottom surface of the upper cover plate 44; the rib plates 96 are located on both sides of the support beam 95 and are connected to both the support beam 95 and the upper cover plate 44. In this embodiment, two groups of vias are formed on the upper cover plate 44, the two groups of vias are respectively located at two sides of the axis of the upper cover plate 44, each group of vias comprises two vias, the two vias of each group are arranged at intervals, so that a trabecula is formed between the two vias, the supporting beam 95 is arranged on the bottom surface of the trabecula, the two sides of the supporting beam 95 are connected with rib plates 96, and the upper ends of the rib plates 96 are connected with the bottom surface of the trabecula, so that the structural strength of the upper cover plate 44 is improved.

As shown in fig. 27 and 28, the side bearing assembly 100 includes at least two side plates 101, a connecting beam 102, a seat plate 103, a wear plate 104, an adjustment pad 105 and a shielding plate 106, the side plates 101 being vertically disposed and respectively connected with the side wall assembly 40; at least a portion of the side panel 101 is connected to the side wall assembly 40 by a connecting beam 102; the seat plate 103 is connected with the bottom of the side plate 101; the wearing plate 104 is connected with the bottom of the seat plate 103, and the wearing plate 104 wears preferentially to the seat plate 103 so as to protect the seat plate 103 and prolong the service life of the seat plate 103; the adjusting base plate 105 is arranged between the seat plate 103 and the wearing plate 104, so that the wearing plate 104 is prevented from being in direct contact with the seat plate 103, and the abrasion to the seat plate 103 is reduced; the shielding plate 106 is disposed between the two side plates 101 and connected to the side plates 101, and the plane of the shielding plate 106 is perpendicular to the plane of the side plates 101. The side bearing assembly 100 serves as an end of the concave chassis structure, can facilitate the cooperative connection of the concave chassis structure with external equipment, and simultaneously ensures that the concave chassis structure is transversely supported stably.

As shown in fig. 2, the concave chassis structure of the present embodiment further includes a locking assembly 110, and the locking assembly 110 is connected to an upper portion of the sidewall assembly 40 to lock the workpiece to be delivered to the concave chassis structure. The locking assembly 110 is designed mainly for containers, and when the containers are hoisted into the concave underframe structure, the containers are locked on the concave underframe structure through the locking assembly 110 so as to ensure the stability of the containers. The locking assembly 110 is cast by E-grade steel, and in order to avoid interference between the locking assembly 110 and the workpiece to be sent, the locking assembly 110 can be turned over relative to the side wall assembly 40, and the locking assembly 110 can be turned down and stored when not in use, and can be turned up when in use.

As shown in fig. 1, the concave chassis structure further includes a rotating assembly 120 and an anti-falling assembly 130 for mounting the receiving members, the rotating assembly 120 is connected with the bottom of the floor assembly 10 and can rotate relative to the floor assembly 10, and receiving members such as a rotating box body can be mounted on the rotating assembly 120 so as to be convenient for storage; an anti-falling assembly 130 is arranged between the rotating assembly 120 and the floor assembly 10, and the anti-falling assembly 130 can prevent the rotating assembly 120 from falling off accidentally, so that the connection reliability of the rotating assembly 120 is ensured.

Through practical tests, the piggyback transport vehicle adopting the concave bottom frame structure of the embodiment can transport the whole highway truck which meets the requirements of GB1589 and has the length of not more than 181000mm, the width of not more than 2550mm and the height of not more than 4000mm, and the semitrailer of highway truck which has the length of not more than 14600mm, the width of not more than 2550mm and the height of not more than 4000 mm. And is also suitable for shipment of an outline size conforming to ISO668: two 20ft containers or one 40ft container or one 45ft container or one 48ft container as specified in 95 series 1 container-class, size and weight rating.

It should be noted that, in the above embodiments, a plurality refers to at least two.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

1. Solves the problem of poor bearing capacity of the concave bottom frame in the prior art;

2. Optimizing the structural style of the concave bottom frame structure, and improving the load transmission path of the concave bottom frame structure and the stress state of the vehicle body;

3. The integral bearing capacity of the concave bottom frame structure and the longitudinal bearing capacity of the vehicle body are improved so as to be suitable for bearing the whole vehicle and the semitrailer of the highway;

4. The use requirement of container transportation is considered, so that the technical problems of multifunction and strong universality of the project are solved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A concave chassis structure, comprising:

-a floor assembly (10) for carrying articles to be fed;

a pincer-like rack assembly (20), the pincer-like rack assembly (20) being connected to one end of the floor assembly (10);

a cab apron assembly (30), the cab apron assembly (30) being connected to the pincer-like rack assembly (20), and at least a portion of the cab apron assembly (30) being movable relative to the floor assembly (10) and being capable of forming a conveying ramp for transporting the parts to be conveyed;

the bottom of the side wall assemblies (40) is connected with the floor assembly (10) and encloses a containing area containing the to-be-sent piece together with the floor assembly (10), and one end of the side wall assemblies (40) is connected with the pincer-shaped frame assembly (20);

A first end beam assembly (50), the first end beam assembly (50) being located at one end of the floor assembly (10) and being connected to the floor assembly (10) and the side wall assembly (40) by the pincer-like frame assembly (20);

-a floor protection assembly (60), the floor protection assembly (60) being arranged at an outer bottom of the floor assembly (10) and supporting the floor assembly (10) when the recessed infrastructure is in contact with the ground;

A second end beam assembly (70), the second end beam assembly (70) being connected to the floor assembly (10) and being located at an end of the floor assembly (10) remote from the pincer-like rack assembly (20);

A protective cover assembly (80), wherein the protective cover assembly (80) is embedded on the floor assembly (10), and the extending direction of the protective cover assembly (80) is the same as the extending direction of the floor assembly (10);

the stiffening beam assembly (90), the stiffening beam assembly (90) is connected with the side wall assembly (40) and is positioned at one end of the side wall assembly (40) far away from the pincer-shaped frame assembly (20);

A side bearing assembly (100) for mating with an external device, the side bearing assembly (100) being connected to the side wall assembly (40) and being located at an end of the side wall assembly (40) remote from the pincer-like frame assembly (20);

The floor assembly (10) comprises at least two floor main bodies (11) which are arranged in groups, the to-be-sent piece can be borne on the floor main bodies (11), the two floor main bodies (11) which are arranged in groups are arranged in parallel at intervals, and the protective cover assembly (80) is positioned between the two floor main bodies (11);

the pincer-like rack assembly (20) comprises:

-a pincer support (21), said pincer support (21) being connected to said floor assembly (10);

a ground support (22), the ground support (22) being connected to the bottom of the pincer support (21) and contacting the ground when the pincer assembly (20) is placed on the ground;

A vertical support (23), the vertical support (23) being connected to the pincer support (21) and extending in a length direction of the floor assembly (10), the vertical support (23) being connected to the first end beam assembly (50);

A bent plate (24), the bent plate (24) being connected to the pincer-like rack support (21) and having a recess for cooperation with the first end beam assembly (50);

And the lifting frame (25) is movably connected with the pincer-shaped frame support (21) and can be abutted on the ground so as to lift the pincer-shaped frame assembly (20).

2. The concave chassis structure according to claim 1, wherein the floor main body (11) includes:

a longitudinal beam (111);

The side beams (112), the longitudinal beams (111) and the side beams (112) extend along the length direction of the floor assembly (10) and are arranged at intervals;

The small cross beams (113) are perpendicular to the length direction of the floor assembly (10), and the small cross beams (113) are sequentially arranged at intervals along the length direction of the floor assembly (10).

3. The concave chassis structure according to claim 2, wherein the floor assembly (10) is divided into a transition section (12) and a receiving section (13) along a length direction of the floor assembly (10), and the transition section (12) is closer to the cab apron assembly (30) than the receiving section (13), the small cross beam (113) is disposed at the receiving section (13), the floor main body (11) further includes an end plate (114), the end plate (114) is disposed at the transition section (12), and both sides of the end plate (114) are connected with the side beams (111) and the side beams (112), respectively.

4. A concave chassis structure according to claim 3, characterized in that the floor body (11) further comprises a large cross beam (115), the length direction of the large cross beam (115) being perpendicular to the length direction of the floor assembly (10) and being located between the transition section (12) and the receiving section (13).

5. A concave chassis structure according to claim 3, wherein the floor assembly (10) further comprises a cross member (14), the cross member (14) being located at the transition section (12) and being arranged between two of the floor bodies (11) arranged in a group, the cross member (14) comprising:

an upper plate (141);

-a lower plate (142), said upper plate (141) and said lower plate (142) being connected to the top and bottom of said floor body (11), respectively;

The floor comprises a vertical plate (143), wherein the upper end and the lower end of the vertical plate (143) are respectively connected with the upper plate (141) and the lower plate (142), and two sides of the vertical plate (143) are respectively connected with two floor main bodies (11) which are arranged in pairs.

6. A concave chassis structure according to claim 3, wherein the floor assembly (10) further comprises:

the cover plate (15) is positioned on the transition section (12) and is connected with the side walls of the two floor main bodies (11) which are arranged in groups and are close to each other;

And the limiting plate (16) is positioned on the bearing section (13) and is connected with the small cross beam (113) so as to control the position of the to-be-sent piece entering the containing area.

7. The recessed floor frame structure according to claim 1, wherein the floor assembly (10) further comprises:

-at least one safety plate (17), said safety plate (17) being connected to said floor body (11) and being located at an end of said floor body (11) close to said cab apron assembly (30);

The connecting plates (18) are arranged between the two floor main bodies (11) in a group, and are connected with the floor main bodies (11), and the connecting plates (18) are arranged at one ends of the floor main bodies (11) close to the cab apron assemblies (30).

8. The concave chassis structure according to claim 1, wherein the cab apron assembly (30) includes:

A fixing plate (31), the fixing plate (31) being connected with the pincer-like frame assembly (20);

The turnover plate (32), the turnover plate (32) is rotatably connected with the fixed plate (31) through the connection rotating plate (33), and one end of the turnover plate (32) far away from the fixed plate (31) can be turned downwards to form a conveying inclined plane for conveying the to-be-conveyed piece.

9. The recessed floor frame structure according to claim 1, wherein the side wall assembly (40) comprises:

An upper beam (41);

a lower beam (42);

-a side column (43), said side column (43) being connected to said upper beam (41) and said lower beam (42), and said side column (43) being arranged obliquely with respect to said upper beam (41) and/or said lower beam (42) and forming an angle with said upper beam (41) and/or said lower beam (42);

An upper cover plate (44), wherein one end of the upper beam (41) close to the pincer-shaped frame assembly (20) inclines towards the direction close to the lower beam (42) and forms an upper inclined section, and the upper cover plate (44) covers the upper inclined section;

and one end, far away from the upper cover plate (44), of the lower beam (42) is inclined towards a direction close to the upper beam (41) to form a lower inclined section, and the lower cover plate (45) is arranged at the lower inclined section in a covering mode.

10. The recessed floor frame structure of claim 1, wherein the floor shield assembly (60) comprises:

A bottom closing plate (61);

Bottom guard plates (62), bottom guard plates (62) are connected with the bottom of the floor assembly (10), both sides of the bottom guard plates (62) are provided with the bottom closing plates (61), and the bottom guard plates (62) have a protection inclined surface inclined along the length direction of the floor assembly (10).

11. The concave chassis structure according to claim 1, wherein the second end beam assembly (70) comprises:

a support plate (71);

A first cross member (72);

A second cross beam (73);

a third cross member (74), wherein the first cross member (72), the second cross member (73) and the third cross member (74) are all connected with the support plate (71), and the first cross member (72), the second cross member (73) and the third cross member (74) are sequentially connected along the width direction of the floor assembly (10);

and the baffle plate (75) is connected with the side edge of the supporting plate (71) and extends upwards to control the movement range of the to-be-sent piece.

12. The concave chassis structure according to claim 5, wherein the protective cover assembly (80) includes a plurality of protective plates (81), the protective plates (81) are located between two of the floor main bodies (11) arranged in groups, all the protective plates (81) are arranged in groups, the protective plates (81) in each group are sequentially connected, the protective plates (81) in each group are sequentially arranged at intervals along the length direction of the floor assembly (10), and the cross members (14) are arranged between at least two groups of the protective plates (81).

13. The concave chassis structure according to claim 9, wherein the stiffening beam assembly (90) comprises:

a bottom plate (91), wherein the bottom plate (91) is positioned below the upper cover plate (44) and is connected with the side wall assembly (40);

At least two support plates (92), wherein the support plates (92) are vertically arranged and connected with the bottom plate (91) and the upper cover plate (44);

The sealing plates (93) are vertically arranged between the supporting plates (92) and are connected with the bottom plate (91) and the upper cover plate (44), and the planes of the supporting plates (92) and the sealing plates (93) are perpendicular to the length direction of the floor assembly (10);

And the partition plate (94) is vertically arranged and connected with the bottom plate (91) and the upper cover plate (44), and the partition plate (94) and the support plate (92) are arranged at intervals along the length direction of the floor assembly (10).

14. The concave chassis structure according to claim 13, wherein the stiffening beam assembly (90) further comprises:

A support beam (95), wherein the support beam (95) is connected with the bottom surface of the upper cover plate (44);

The rib plates (96) are positioned on two sides of the supporting beam (95) and are connected with the supporting beam (95) and the upper cover plate (44).

15. The concave chassis structure according to claim 1, wherein the side bearing assembly (100) comprises:

At least two side plates (101), wherein the side plates (101) are vertically arranged and respectively connected with the side wall assembly (40);

-a connection beam (102), at least a portion of the side plate (101) being connected to the side wall assembly (40) by means of the connection beam (102);

A seat plate (103), wherein the seat plate (103) is connected with the bottom of the side plate (101);

-a wear plate (104), the wear plate (104) being connected to the bottom of the seat plate (103);

An adjustment pad (105), the adjustment pad (105) being arranged between the seat plate (103) and the wear plate (104);

The shielding plates (106) are arranged between the two side plates (101) and connected with the side plates (101), and the plane of the shielding plates (106) is perpendicular to the plane of the side plates (101).

16. The recessed floor structure according to claim 1, further comprising a locking assembly (110), the locking assembly (110) being connected with the side wall assembly (40) to lock the parts to be delivered to the recessed floor structure.

17. The concave chassis structure of claim 1, further comprising:

A swivel assembly (120) for mounting a receptacle, the swivel assembly (120) being connected to the bottom of the floor assembly (10) and being rotatable relative to the floor assembly (10);

And the anti-falling assembly (130) is arranged between the rotating assembly (120) and the floor assembly (10), and the anti-falling assembly (130) is arranged between the rotating assembly and the floor assembly.

18. A piggyback vehicle comprising the concave chassis structure of any one of claims 1 to 17.