Jacking freight trolley

Abstract

The utility model provides a jacking freight trolley which comprises an AGV body, a protective shell is installed on the AGV body, a threaded sleeve is inserted into the protective shell in a guiding mode, the top end of the threaded sleeve is rotationally connected with a supporting plate through a bearing, the top end of the supporting plate is connected with a roller conveying assembly, the lower portion of the threaded sleeve is connected with an adjusting lead screw, and the lower portion of the adjusting lead screw is connected with a lifting rod. The threaded sleeve is connected with an adjusting lead screw in an engaged mode through threads, the adjusting lead screw is arranged in a protective shell, the bottom of the adjusting lead screw is rotationally connected with the AGV body through a bearing, a first servo motor is further installed in the protective shell, and the first servo motor is connected with the adjusting lead screw through a first driving gear and a first annular gear. And a second servo motor is mounted at the left part of the threaded sleeve. The purpose of stably transporting goods through the AGV is achieved, the AGV can be aligned with the goods, the goods can be stably taken down from the goods shelf, the gravity center of the goods can be adjusted, and the stability and safety of the goods in the transportation process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of freight cart technology, and in particular to a lifting freight cart. Background Technology

[0002] AGV (Automated Guided Vehicle) refers to a transport vehicle equipped with electromagnetic or optical automatic guidance devices. It can travel along a prescribed guidance path and has safety protection and various transfer functions.

[0003] The control of an AGV system is achieved through the collaboration of a logistics upper-level scheduling system, an AGV ground control system, and an AGV onboard control system. Automated guided vehicles (AGVs) can flexibly, accurately, and efficiently transport materials and are widely used in flexible manufacturing workshops. Multi-carrier AGVs can transport multiple workpieces simultaneously, exhibiting strong handling flexibility. However, their path planning problems are more complex and subject to more constraints, making them more difficult to solve.

[0004] In existing technologies, when using AGVs to transport goods on shelves, the AGV usually needs to move directly under the goods, then lift the goods using a lifting mechanism, and then move the AGV to remove the goods from the shelf for transport. However, during this process, the stopping position of the AGV may differ from the transport position of the goods, resulting in inconsistency between the freight and the AGV's pallet. This can easily cause the goods to fall during transport, leading to low transport stability. Utility Model Content

[0005] The present invention aims to provide a lifting freight trolley to overcome or at least partially solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0007] This utility model provides a lifting freight trolley, including an AGV body. A protective shell is installed on the AGV body, and a threaded sleeve is guided and inserted into the protective shell. The top of the threaded sleeve is rotatably connected to a support plate via a bearing, and the top of the support plate is connected to a roller conveyor assembly. An adjusting screw is connected to the lower part of the threaded sleeve, and the threaded sleeve is threadedly engaged with the adjusting screw. The adjusting screw is disposed inside the protective shell, and its bottom is rotatably connected to the AGV body via a bearing. A first servo motor is also installed inside the protective shell. The first servo motor is connected to the adjusting screw via a first drive gear and a first ring gear, and drives the adjusting screw to rotate. A second servo motor is installed on the left side of the threaded sleeve, and the second servo motor is connected to the support plate via a second drive gear and a second ring gear, and drives the support plate to rotate.

[0008] As a further embodiment of this utility model, a guide hole is provided on the protective shell, and the threaded sleeve is inserted into the guide hole and moves along the guide hole.

[0009] As a further embodiment of this utility model, a limiting hole is also provided on the protective shell, through which the lower part of the second servo motor passes.

[0010] As a further embodiment of this utility model, the first drive gear is sleeved and fixed on the output shaft of the lower side of the first servo motor, and the first ring gear is sleeved and fixed on the adjusting screw. The first ring gear is meshed with the first drive gear through its teeth.

[0011] As a further embodiment of this utility model, the second drive gear is sleeved and fixed on the output shaft of the upper side of the second servo motor, and the second ring gear is sleeved and fixed on the support tray. The second ring gear is meshed with the second drive gear through its teeth.

[0012] This utility model provides a lifting freight trolley, which has the following advantages: it achieves the purpose of stable transportation of goods through AGV. It can align with the goods and stably remove them from the shelf, and it can also adjust the center of gravity of the goods to ensure the stability and safety of the goods during transportation. It is simple to operate and has a high degree of automation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a partial sectional view of the present invention.

[0015] Figure 2 This is a top view of the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of the roller conveyor assembly in this utility model.

[0017] In the diagram: 1. AGV body; 2. Protective shell; 3. Roller conveyor assembly; 4. First ring gear; 5. Adjusting screw; 6. First drive gear; 7. First servo motor; 8. Threaded sleeve; 9. Second ring gear; 10. Support tray; 11. Second drive gear; 12. Second servo motor; 21. Guide hole; 22. Limiting hole. Detailed Implementation

[0018] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0019] See Figure 1-3 This utility model provides a lifting freight trolley, including an AGV body 1, a protective shell 2 installed on the AGV body 1, and a threaded sleeve 8 inserted into the protective shell 2 as a guide. The top end of the threaded sleeve 8 is rotatably connected to a support plate via a bearing, and the top end of the support plate 10 is connected to a roller conveyor assembly 3. The lower part of the threaded sleeve 8 is connected to an adjusting screw 5, and the threaded sleeve 8 is engaged with the adjusting screw 5 via threads. The adjusting screw 5 is located inside the protective shell 2, and the bottom of the adjusting screw 5 is rotatably connected to the AGV body 1 via a bearing. A first servo motor 7 is also installed inside the protective shell 2. The first servo motor 7 is connected to the adjusting screw 5 via a first drive gear 6 and a first ring gear 4, and drives the adjusting screw 5 to rotate. A second servo motor 12 is installed on the left side of the threaded sleeve 8, and the second servo motor 12 is connected to the support plate 10 via a second drive gear 11 and a second ring gear 9, and drives the support plate 10 to rotate.

[0020] The first drive gear 6 is sleeved and fixed on the output shaft of the first servo motor 7 on the lower side, and the first ring gear 4 is sleeved and fixed on the adjusting screw 5. The first ring gear 4 is meshed with the first drive gear 6 through its teeth.

[0021] The second drive gear 11 is sleeved and fixed on the output shaft of the upper side of the second servo motor 12, and the second ring gear 9 is sleeved and fixed on the support tray 10. The second ring gear 9 is meshed with the second drive gear 11 through its teeth.

[0022] In use, the AGV body 1 is guided by its own path guidance component to move along the planned path to the shelf. Then, the second servo motor 12 drives the second drive gear 11 to rotate, which in turn drives the second ring gear 9, the support tray 10, and the roller conveyor assembly 3 to rotate synchronously, thus adjusting the support direction of the roller conveyor assembly 3 for the goods. Then, the first servo motor 7 drives the first drive gear 6 to rotate, which in turn drives the first ring gear 4 and the adjusting screw 5 to rotate. Under the action of the thread, the threaded sleeve 8 moves upward along the adjusting screw 5 and the guide hole 21, thus moving the roller conveyor assembly 3 upward. Then, the roller conveyor assembly 3 moves upward and contacts the goods, pushing the goods off the shelf. Then, the operation of the roller conveyor assembly 3 drives the goods to move, thus moving the goods to the center position of the roller conveyor assembly 3 to ensure the stability of the goods during transportation and prevent them from falling due to center deviation. Finally, the AGV body 1 drives the goods to transfer and transport.

[0023] The protective shell 2 has a guide hole 21. The threaded sleeve 8 is inserted into the guide hole 21 and moves along the guide hole 21, thereby guiding the movement of the threaded sleeve 8 and preventing the threaded sleeve 8 from rotating during movement.

[0024] The protective shell 2 is also provided with a limiting hole 22. The lower part of the second servo motor 12 passes through the limiting hole 22, which facilitates the movement of the threaded sleeve 8 to drive the second servo motor 12 to move, and facilitates the lower part of the second servo motor 12 to pass through the protective shell 2, thereby improving space utilization.

[0025] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A lifting freight trolley, comprising an AGV body (1), characterized in that, The AGV body (1) is equipped with a protective shell (2), and a threaded sleeve (8) is guided and inserted into the protective shell (2). The top end of the threaded sleeve (8) is rotatably connected to a support plate through a bearing, and the top end of the support plate (10) is connected to the roller conveyor assembly (3). The lower part of the threaded sleeve (8) is connected to an adjusting screw (5), and the threaded sleeve (8) is engaged with the adjusting screw (5) through threads. The adjusting screw (5) is set inside the protective shell (2), and the bottom of the adjusting screw (5) is connected to the AGV through a bearing. The main body (1) is rotatably connected, and the inner part of the protective shell (2) is also equipped with a first servo motor (7). The first servo motor (7) is connected to the adjusting screw (5) through the first drive gear (6) and the first ring gear (4), and drives the adjusting screw (5) to rotate. The left side of the threaded sleeve (8) is equipped with a second servo motor (12), and the second servo motor (12) is connected to the support tray (10) through the second drive gear (11) and the second ring gear (9), and drives the support tray (10) to rotate.

2. The lifting freight trolley according to claim 1, characterized in that, The protective shell (2) has a guide hole (21), and the threaded sleeve (8) is inserted into the guide hole (21) and moves along the guide hole (21).

3. The lifting freight trolley according to claim 2, characterized in that, The protective shell (2) is also provided with a limiting hole (22), through which the lower part of the second servo motor (12) passes.

4. The lifting freight trolley according to claim 1, characterized in that, The first drive gear (6) is sleeved and fixed on the output shaft of the lower side of the first servo motor (7), and the first ring gear (4) is sleeved and fixed on the adjusting screw (5). The first ring gear (4) is meshed with the first drive gear (6) through its teeth.

5. A lifting freight trolley according to claim 1, characterized in that, The second drive gear (11) is sleeved and fixed on the output shaft of the second servo motor (12) on the upper side, and the second ring gear (9) is sleeved and fixed on the support tray (10). The second ring gear (9) is meshed with the second drive gear (11) through its teeth.

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