Longitudinal-beam-free rear-dumping semitrailer carriage and semitrailer

Abstract

The carriage comprises a bottom plate and side carriage plates vertically connected to the two sides of the bottom plate, a sizing block is arranged on the lower surface of the bottom plate, a pair of tail supports is arranged at the rear end of the sizing block, the tail supports are arranged in the length direction of the bottom plate, and the side carriage plates are vertically connected to the two sides of the bottom plate. A rear transverse support is connected between the pair of tail supporting supports, rear stand columns are arranged on the outer sides of the side compartment plates, and the bottoms of the rear stand columns are connected with the tail supporting supports. According to the longitudinal-beam-free rear unloading semitrailer carriage, the processing steps of the rear unloading semitrailer carriage can be reduced, the lightweight requirement of the carriage is met, and the strength of a rear unloading vehicle overturning structure is ensured.

Description

Technical Field

[0001] The utility model relates to the field of semi-trailer carriages, and specifically, to a rear-unloading semi-trailer carriage without longitudinal beams and a semi-trailer. Background Art

[0002] The existing rear-unloading semi-trailer carriage is usually reinforced by profiled steel longitudinal beams. This structure requires welding profiled steel longitudinal beams on the upper frame bottom plate and using cross braces and wing braces for welding to achieve the reinforcement purpose. This structure uses more materials for light vehicles, has a complex structure and high requirements for welding technology.

[0003] The utility model patent with the authorization announcement number CN220518109U discloses a lightweight rear-unloading vehicle, including a chassis, a carriage and a balance assembly. By setting the structure of the balance assembly, the stability of the rear-unloading vehicle when unloading materials is enhanced, and the rear-unloading vehicle is not easily toppled. The carriage includes a bottom plate, side carriage plates, a front carriage plate and a rear carriage plate. The front carriage plate and the rear carriage plate are inclined with respect to the bottom plate, so that the center of gravity of the vehicle moves forward, thereby increasing the bearing capacity of the kingpin. The thickness of the bottom plate is greater than that of the side carriage plates, and two longitudinal beams are provided at the bottom of the bottom plate. The bottom plate and the side carriage plates are provided with a plurality of bending parts to enhance the overall strength of the carriage. At the connection between the front carriage plate and the bottom plate, and at the connection between the front carriage plate and the side carriage plates, sliding plates are provided to improve the convenience of unloading. A return bending part and a reinforcing plate are provided above the side carriage plates to improve the anti-bulging capacity of the carriage. A cross structure is provided at the chassis to further improve the stability of the vehicle. However, longitudinal beams are still provided at the bottom of this lightweight rear-unloading vehicle, and there are defects such as cumbersome processing steps. Summary of the Utility Model

[0004] In order to reduce the processing steps of the rear-unloading semi-trailer carriage, meet the lightweight requirement of the carriage, and ensure the strength of the tipping structure of the rear-unloading vehicle, the utility model further provides a rear-unloading semi-trailer carriage without longitudinal beams, including a bottom plate and side carriage plates vertically connected to both sides of the bottom plate. A packing iron is provided on the lower surface of the bottom plate, and a pair of tail supports are provided at the rear end of the packing iron. The tail supports are arranged along the length direction of the bottom plate. A rear cross brace is connected between the pair of tail supports. A rear column is provided on the outer side of the side carriage plate, and the bottom of the rear column is connected to the tail support.

[0005] Based on the above, the length value of the tail support is greater than the width value of the rear column, and the length value of the tail support is less than the length value of the bottom plate.

[0006] Based on the above, in order to increase the structural strength of the bottom plate, the length value of the bottom plate is equal to the length value of the packing iron.

[0007] Based on the above, in order to increase the structural strength of the tail part of the side carriage plate, the side carriage plate is an arc-shaped side carriage plate, and the inner side of the rear column coincides with the arc-shaped side carriage plate.

[0008] Based on the above, in order to avoid interference, the height of the rear upright column is less than or equal to the height of the side compartment panel.

[0009] The utility model further provides a semi-trailer, which is equipped with the above-mentioned rear-unloading semi-trailer carriage without longitudinal beams.

[0010] The utility model has substantial features and progress compared with the prior art. Specifically, the rear-unloading semi-trailer carriage provided by the utility model is designed without longitudinal beams, and specifically consists of a bottom plate, a packing iron, side compartment panels, a tail support, a rear upright column, and a rear cross brace. Among them, the packing iron is used to contact and support on the underframe longitudinal beam to protect the bottom plate from being worn. The side compartment panels are connected to the bottom plate, and the tail support, rear upright column, and rear cross brace are used to ensure the strength of the rear-unloading vehicle flipping structure. Therefore, this design simplifies the upper frame structure of the rear-unloading vehicle, reduces the weight and facilitates the assembly of the carriage, improving the production efficiency. At the same time, the welding and installation processes of the upper frame cross brace and wing brace are reduced, facilitating production and manufacturing. Description of the Drawings

[0011] Figure 1 is a schematic diagram of the overall structure of the rear-unloading semi-trailer carriage provided by the utility model.

[0012] Figure 2 is a schematic diagram of the partial structure of the rear-unloading semi-trailer carriage provided by the utility model.

[0013] In the figure: 1, bottom plate; 2, rear cross brace; 3, side compartment panel; 4, packing iron; 5, rear upright column; 6, tail support. Detailed Embodiments

[0014] The following further describes in detail the technical solutions of the utility model through specific embodiments.

[0015] Embodiment 1

[0016] This embodiment provides a rear-unloading semi-trailer carriage without longitudinal beams, as Figure 1 、 Figure 2 shown, including a bottom plate 1 and side compartment panels 3 vertically connected to both sides of the bottom plate 1. A packing iron 4 is arranged on the lower surface of the bottom plate 1, and a pair of tail supports 6 are arranged at the rear end of the packing iron 4. The tail supports 6 are arranged along the length direction of the bottom plate 1. A rear cross brace 2 is connected between the pair of tail supports 6. A rear upright column 5 is arranged on the outer side of the side compartment panel 3, and the bottom of the rear upright column 5 is connected to the tail support 6.

[0017] In order to increase the structural strength of the bottom plate, the length value of the bottom plate is equal to the length value of the packing iron. In order to increase the structural strength of the tail part of the side compartment panel, the side compartment panel is an arc-shaped side compartment panel, and the inner side of the rear upright column coincides with the arc-shaped side compartment panel. The rear upright column is welded to the tail support and the arc-shaped side compartment panel.

[0018] Example 2

[0019] This embodiment provides a rear-dumping semi-trailer carriage without longitudinal beams. The main difference from Embodiment 1 is that in this embodiment: the length value of the tail support is greater than the width value of the rear column, and the length value of the tail support is less than the length value of the bottom plate. To avoid interference, the height of the rear column is less than or equal to the height of the side compartment board.

[0020] Example 3

[0021] This embodiment provides a semi-trailer equipped with the rear-dumping semi-trailer carriage without longitudinal beams described in Embodiment 1 or Embodiment 2.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A rear-dumping semi-trailer compartment without longitudinal beams, characterized in that: It includes a bottom plate and side panels vertically connected to both sides of the bottom plate, a pad iron is provided on the lower surface of the bottom plate, a pair of tail supports are provided at the rear end of the pad iron, the tail supports are arranged along the length direction of the bottom plate, a rear cross support is connected between the pair of tail supports, a rear column is provided on the outer side of the side panel, and the bottom of the rear column is connected to the tail support.

2. The rear-dumping semitrailer compartment without longitudinal beams according to claim 1 is characterized in that: The length of the tail support is greater than the width of the rear pillar, and the length of the tail support is less than the length of the bottom plate.

3. The rear-dumping semitrailer compartment without longitudinal beams according to claim 1 or 2, characterized in that: The length of the bottom plate is equal to the length of the shim.

4. The rear-dumping semitrailer compartment without longitudinal beams according to claim 3 is characterized in that: The side compartment plate is an arc-shaped side compartment plate, and the inner side of the rear pillar is consistent with the arc-shaped side compartment plate.

5. The rear-dumping semitrailer compartment without longitudinal beams according to claim 4 is characterized in that: The height of the rear pillar is less than or equal to the height of the side panel.

6. A semitrailer, characterized in that: The semitrailer is equipped with a rear-dumping semitrailer body without longitudinal beams as described in any one of claims 1 to 5.

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