Chassis structure of heavy load AGV (Automatic Guided Vehicle)

Abstract

The chassis structure of the heavy load AGV comprises a chassis body and a driving assembly, the chassis body comprises a top plate, a bottom plate and four supporting plates, the four supporting plates are arranged between the top plate and the bottom plate and are arranged at intervals, the length of the top plate is larger than that of the bottom plate, the supporting plates are of an inverted trapezoidal structure, and the driving assembly is arranged on the chassis body. One side of the supporting plate is matched with the top plate in length, and the other side of the supporting plate is matched with the bottom plate in length; the driving assembly is arranged on the chassis body; a plurality of inverted trapezoidal supporting plates are arranged between a bottom plate and a top plate, the length of the top plate is larger than that of the bottom plate, so that the top plate has a large cargo carrying area, four steering wheels are connected with the supporting plates and the top plate through base plates, the stability of the steering wheels can be improved, meanwhile, the overall height of the chassis is reduced, and the chassis is more stable during moving; the universal wheels which are kept in the same level with the steering wheels are arranged between the two steering wheels on the same side of the chassis, the chassis is supported in a multi-point mode, and the bearing capacity and the moving stability of the chassis of the AGV can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of AGV (Automated Guided Vehicle) technology, specifically relating to a chassis structure for a heavy-duty AGV. Background Technology

[0002] AGVs are intelligent mobile vehicles that can be automatically guided. Existing AGVs are mostly used for cargo handling, enabling automatic loading, unloading, and transfer of goods. However, existing AGVs have poor load-bearing capacity due to limitations in their chassis structure. When handling large loads, not only is the load-bearing capacity of the AGV tested, but it also requires a sufficiently large carrying area to secure the goods and prevent tipping. Furthermore, the vehicle's ground clearance and center of gravity must be considered. A high ground clearance can lead to instability and a higher risk of tipping over during cargo transport. Therefore, improvements to the AGV chassis from multiple angles are needed to enhance its load-bearing and cargo-carrying performance. Utility Model Content

[0003] The purpose of this utility model is to provide a chassis structure for a heavy-duty AGV trolley. By setting multiple inverted trapezoidal support plates between the bottom plate and the top plate, with the length of the top plate being greater than that of the bottom plate, the top plate has a larger cargo-carrying area. Four steering wheels are connected to the support plates and the top plate through pads, which can improve the stability of the steering wheels and reduce the overall height of the chassis, making the chassis more stable when moving. Universal wheels that are at the same level as the steering wheels are set between two steering wheels on the same side of the chassis, providing multi-point support for the chassis, which can improve the load-bearing capacity and stability of the AGV trolley chassis during movement.

[0004] This utility model is achieved through the following technical solution:

[0005] A chassis structure for a heavy-duty AGV includes a chassis body and a drive assembly. The chassis body includes a top plate, a bottom plate, and four support plates. The four support plates are disposed between the top plate and the bottom plate and spaced apart from each other. The length of the top plate is greater than the length of the bottom plate. Each support plate has an inverted trapezoidal structure. One side of each support plate matches the length of the top plate, and the other side matches the length of the bottom plate. The drive assembly is mounted on the chassis body.

[0006] Furthermore, the drive assembly includes four steering wheels, which are respectively disposed at the four corners of the top plate and located between two support plates; a pad is disposed between the steering wheels and the top plate, and the pad is connected to the top plate and the support plates on both sides respectively.

[0007] Furthermore, a plurality of connecting plates are provided between the top plate and the bottom plate, and the connecting plates are respectively connected to the top plate, the bottom plate and the support plate.

[0008] Furthermore, reinforcing ribs are provided between the connecting plates.

[0009] Furthermore, a set of omnidirectional wheels is provided on the chassis body. The omnidirectional wheels are located at the bottom edge of the chassis body and are connected to the top plate. The bottom plate is provided with clearance holes. The bottom of the omnidirectional wheels extends from the clearance holes and is at the same level as the steering wheel. A connector is provided above the omnidirectional wheels. The connector is connected to the top plate and the connecting plate respectively.

[0010] Furthermore, a connecting rod is provided between the connectors above the two casters, and the connecting rod passes through the support plate between the casters.

[0011] Furthermore, the support plate is made of galvanized steel sheet with a thickness of 5mm-7mm.

[0012] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0013] In this invention, multiple inverted trapezoidal support plates are set between the bottom plate and the top plate. The length of the top plate is greater than that of the bottom plate, giving the top plate a larger cargo-carrying area. The four steering wheels are connected to the support plates and the top plate through pads, which can improve the stability of the steering wheels and reduce the overall height of the chassis, making the chassis more stable when moving. Universal wheels that are at the same level as the steering wheels are set between the two steering wheels on the same side of the chassis, providing multi-point support for the chassis, which can improve the load-bearing capacity and stability of the AGV chassis when moving. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the chassis of a heavy-duty AGV.

[0016] Figure 2 This is a schematic diagram of the assembly structure of the steering wheel in the chassis structure of a heavy-duty AGV.

[0017] Figure 3 This is a schematic diagram of the assembly structure of the support plate, bottom plate, and connecting plate in the chassis structure of a heavy-duty AGV.

[0018] Wherein: 1-top plate, 2-bottom plate, 3-support plate, 4-steering wheel, 5-pad plate, 6-connecting plate, 61-reinforcing rib, 7-caster wheel, 71-connector, 8-connecting rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] Example 1:

[0021] A chassis structure for a heavy-duty AGV (Automated Guided Vehicle), such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes a chassis body and a drive assembly. The chassis body 2 includes a top plate 1, a bottom plate 2, and four support plates 3. The four support plates 3 are positioned between the top plate 1 and the bottom plate 2 and are spaced apart from each other. The support plates 3 are perpendicular to the top plate 1 and the bottom plate 2, and the four support plates 3 are spaced at the same interval. The upper and lower edges of the top plate 1 and the bottom plate 2 are connected and sealed by two support plates 3 respectively. The top plate 1 and the bottom plate 2 have the same width, but the length of the top plate 1 is greater than the length of the bottom plate 2. The support plates 3 have an inverted trapezoidal structure. The upper side of the support plate 3 matches the length of the top plate 1, and the lower side of the support plate 3 matches the length of the bottom plate 2. The support plates 3 are welded to the top plate 1 and the bottom plate 2. The top plate 1, the bottom plate 2, and the support plates 3 are all made of galvanized steel sheet. The thickness of the support plate 3 is 6mm, and the thickness of the top plate 1 and the bottom plate 2 is 5.5mm. mm; the drive assembly is mounted on the chassis body; the drive assembly includes four steering wheels 4, which are respectively located at the four corners of the top plate 1 and between two support plates 3; a pad 5 is provided between the steering wheel 4 and the top plate 1, and the pad 5 is welded to the top plate 1 and the support plates 3 on both sides. The pad 5 is used to improve the durability of the top plate 1 and increase the thickness at the connection with the steering wheel 4, making the steering wheel 4 more stable; multiple connecting plates 6 are provided between the top plate 1 and the bottom plate 2, and the connecting plates 6 are respectively perpendicular to the top plate 1, the bottom plate 2 and the support plates 3, and are welded to the top plate 1, the bottom plate 2 and the support plates 3; reinforcing ribs 61 are welded between the connecting plates 6, and the reinforcing ribs 61 are parallel to the top plate 1, the bottom plate 2 and the support plates 3 and are spaced apart. The reinforcing ribs 61 can improve the stability of the chassis.

[0022] Example 2:

[0023] This embodiment, based on the above embodiment, further adds a caster wheel 7, such as... Figure 1 and Figure 3As shown, a set of casters 7 are provided on the chassis body. Two casters 7 are located at the upper and lower edges of the bottom of the chassis body and are connected to the top plate 1. The bottom plate 2 is provided with clearance holes, and the bottom of the casters 7 extends from the clearance holes to avoid interference with the bottom plate 2 and support plate 3 when rotating. The bottom of the casters 7 and the bottom of the steering wheel 4 are on the same horizontal plane. A connector 71 is provided above the casters 7. The connector 71 is a rectangular column structure and is welded to the sides of the connecting plates 6 at the bottom and edge of the top plate 1. In addition, a connecting rod 8 is provided between the connectors 71 above the two casters 7. The connecting rod 8 passes through the two support plates 3 between the casters 7 and passes over the reinforcing rib 61. It is also welded to the two connectors 71, the top plate 1 and the two support plates 3 through which it passes, further improving the stability of the casters 7. The other parts of this embodiment are the same as those in the above embodiment, and will not be described again here.

[0024] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this utility model does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A chassis structure of a heavy load AGV vehicle, characterized by, The chassis body comprises a top plate, a bottom plate and four support plates, the four support plates are arranged between the top plate and the bottom plate and are spaced apart from each other, the length of the top plate is greater than that of the bottom plate, the support plates are inverted trapezoidal structures, one side of the support plate is matched with the length of the top plate, and the other side of the support plate is matched with the length of the bottom plate; the driving assembly is arranged on the chassis body.

2. The chassis structure of the heavy load AGV trolley according to claim 1, characterized in that, The driving assembly comprises four rudders, the four rudders are respectively arranged at the four corners of the top plate and are located between two support plates; a backing plate is arranged between the rudder and the top plate, and the backing plate is connected with the top plate and the two side support plates.

3. The chassis structure of the heavy load AGV trolley according to claim 1, characterized in that, A plurality of connecting plates are arranged between the top plate and the bottom plate, and the connecting plates are connected with the top plate, the bottom plate and the support plates.

4. The chassis structure of the heavy load AGV trolley according to claim 3, characterized in that, A reinforcing rib is arranged between the connecting plates.

5. The chassis structure of the heavy load AGV trolley according to claim 3, characterized in that, A set of universal wheels are arranged on the chassis body, the universal wheels are located at the bottom edge position of the chassis body and are connected with the top plate, the bottom plate is provided with a clearance hole, the bottom of the universal wheel extends out of the clearance hole and is in the same horizontal plane as the rudder, a connecting piece is arranged above the universal wheel, and the connecting piece is connected with the top plate and the connecting plate.

6. The chassis structure of the heavy load AGV trolley according to claim 5, characterized in that, A connecting rod is arranged between the connecting pieces above the two universal wheels, and the connecting rod penetrates the support plate between the universal wheels.

7. The chassis structure of the heavy load AGV trolley according to claim 1, characterized in that, The support plate is made of a galvanized steel plate, and the thickness is 5-7 mm.

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