AGV (Automatic Guided Vehicle) jacking plate

Abstract

The utility model relates to the technical field of automatic transportation, and discloses an AGV trolley jacking plate which comprises an AGV trolley, a controller and a driving motor are arranged in the AGV trolley, driving wheels are arranged at the bottom of the AGV trolley, a jacking plate assembly is arranged above the AGV trolley, and the jacking plate assembly is composed of a jacking plate body and a jacking plate expansion piece. Each jacking plate expansion piece is composed of expansion frames, linkage sliding blocks and linkage sliding rods, the four expansion frames make contact with one another end to end in sequence, the section of each expansion frame is in an L shape, and the linkage sliding blocks and the linkage sliding rods are arranged at the two ends of each expansion frame. Due to the arrangement of the jacking plate expansion pieces, the four jacking plate expansion pieces can move on the outer side of the jacking plate main body at the same time under the cooperation of the jacking plate main body, so that the jacking plate expansion pieces are close to or away from the jacking plate main body, the overall bearing face of the jacking plate assembly is changed, and therefore the jacking plate assembly is suitable for connection work of goods of different specifications and shapes; and the application range is effectively expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic transportation, and more specifically, to a lifting plate of an AGV cart. Background Art

[0002] The replacement of manual handling by automated handling has become an inevitable trend. It can replace workers in handling materials and complete the handling and transfer of materials between workstations and between warehouses. Especially in the field of warehousing and logistics transportation, AGVs can not only save labor and reduce costs, but also have the advantages of high efficiency, speed, flexibility, etc., greatly improving production efficiency and automation level. Therefore, AGVs have become one of the main equipment for warehousing and logistics transportation carriers.

[0003] The utility model patent with the application number 202322732950.0 discloses an AGV lifting plate, which greatly improves the stability and support strength of the lifting plate through the cooperation of multiple reinforcing ribs and columns. However, as pointed out in the background art part of its specification, the existing technology has the problem of simple structure of the lifting plate. Although the utility model improves multiple performances of the lifting plate by adding some structures, the functionality brought by its structure is still insufficient. In a narrow warehousing space, reasonably designing the structure of the lifting plate can significantly improve work efficiency. However, the structure of the lifting plate of this utility model patent is fixed, and there are significant differences in the size specifications of the goods to be lifted in the warehouse. If the size of the lifting plate is too large, it is not conducive to efficient operation in a warehouse with limited space. If the size is too small, it is difficult to stably transport goods with larger sizes, especially large-frame goods, and it is difficult to adapt the support points with the lifting plate, resulting in a greatly reduced applicability of the lifting plate. Therefore, it is necessary to develop a new type of AGV lifting plate to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a lifting plate of an AGV cart.

[0005] To achieve the above object, the utility model provides the following technical solution: A lifting plate of an AGV cart, including an AGV cart, wherein a controller and a driving motor are arranged inside the AGV cart, driving wheels are arranged at the bottom of the AGV cart, and a lifting plate assembly is arranged above the AGV cart. The lifting plate assembly is composed of a lifting plate main body and a lifting plate extension part;

[0006] The lifting plate extension part is composed of an extension frame, a linkage slider, and a linkage slide bar. The four extension frames are in contact with each other in sequence. The cross-section of the extension frame is L-shaped. Linkage sliders and linkage slide bars are arranged at both ends of the extension frame. The two linkage slide bars are perpendicular to each other, and the linkage slide bars at the adjacent ends of the adjacent two extension frames are fixedly connected;

[0007] The jacking plate body includes a jacking plate main body connected above the AGV vehicle. A piston and a connecting rod are movably installed inside the jacking plate main body. The outer end of the connecting rod extends to the outside of the jacking plate main body and is fixedly connected to the extension frame.

[0008] As a preferred technical solution of the present invention, a dispersion cavity is provided in the middle of the jacking plate main body. A first through hole is provided at the bottom of the jacking plate main body. Four sliding cavities and a second through hole located outside the dispersion cavity are also provided inside the jacking plate main body. One end of the sliding cavity is communicated with the dispersion cavity through the second through hole. The other end of the sliding cavity is communicated with the outside through the second through hole. Inside the jacking plate main body.

[0009] As a preferred technical solution of the present invention, the inner diameter of the sliding cavity is larger than the inner diameter of the second through hole. The inner walls of the sliding cavity and the second through hole are both smooth. The extension lines of the axes of the sliding cavity and the second through hole pass through the center point and the four corners of the jacking plate main body.

[0010] As a preferred technical solution of the present invention, the piston is hermetically sleeved inside the sliding cavity. The connecting rod is movably sleeved inside the second through hole. The piston is fixedly connected to the extension frame through the connecting rod.

[0011] As a preferred technical solution of the present invention, two first shear frames are embedded in the left and right and two second shear frames are embedded in the front and back inside the AGV vehicle. The tops of the first shear frames and the second shear frames are fixedly hinged to the bottom of the jacking plate main body. Two threaded sliding sleeves are connected to the lower ends of the first shear frames and the second shear frames. A transmission lead screw is movably sleeved inside the threaded sliding sleeve. Conical gears are fixedly connected to both ends of the transmission lead screw. The transmission lead screws at the lower ends of adjacent two first shear frames and second shear frames are connected to each other through conical gears; one of the transmission lead screws is connected to the output shaft of the drive motor.

[0012] As a preferred technical solution of the present invention, a transmission assembly is provided on both the front and back sides of the AGV vehicle. An air pump is embedded in the middle of the AGV vehicle. The air pump is fixedly connected to the bottom of the jacking plate main body and is communicated with the first through hole.

[0013] As a preferred technical solution of the present invention, the transmission assembly includes transmission belts provided on both the front and back sides of the AGV vehicle. Two first belt pulleys are movably sleeved inside the transmission belts. The first belt pulleys are fixedly connected to the front and back ends of the two left and right transmission lead screws. The upper end of the transmission belt is drivingly connected to a tensioning assembly.

[0014] As a preferred technical solution of the utility model, the tensioning assembly includes a tensioning wheel transmission-connected to the transmission belt, the tensioning wheel is externally movably connected to a linkage frame, the linkage frame is slidably clamped to the surface of the AGV trolley, a positioning frame fixedly mounted on the AGV trolley is provided above the linkage frame, the positioning frame has an internal thread sleeved with an adjusting screw, the upper end of the adjusting screw passes through the positioning frame and is fixedly connected to an adjusting knob, and the lower end of the adjusting screw passes through the positioning frame and is rotatably clamped to the top of the linkage frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. Due to the arrangement of the jacking plate extension pieces, the utility model can make the four jacking plate extension pieces move simultaneously on the outside of the jacking plate main body with the cooperation of the jacking plate main body, so as to make them close to or away from the jacking plate main body, thereby changing the overall bearing surface of the jacking plate assembly, so that it is suitable for docking of goods of different specifications and shapes, and effectively improving its scope of application.

[0017] 2. Due to the setting of the tensioning assembly of the utility model, the adjusting screw rod can be rotated under the restriction of the positioning frame to drive the tensioning wheel to rise slowly through the linkage frame, and then the tensioning wheel can be smoothly and slowly risen with the cooperation of the AGV trolley, so that the distance between the tensioning wheel and the left and right first pulleys can be increased, thereby improving the tension of the transmission belt.

[0018] 3. Due to the provision of the second shear frame, the utility model can significantly improve the lifting stability of the jacking plate assembly with the cooperation of the first shear frame; and due to the bevel gears connected to the transmission screws at the lower ends of the first shear frame and the jacking plate assembly, the four transmission screws can move simultaneously, thereby enabling the two first shear frames and the second shear frames to maintain synchronous movement, thereby ensuring that the two first shear frames and the second shear frames can push the jacking plate assembly to rise and fall smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a front view of the utility model;

[0021] Figure 3 It is a side view of the utility model;

[0022] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0023] Figure 5 This is a structural schematic diagram of the jacking plate assembly of the utility model;

[0024] Figure 6It is a cross-sectional view of the top of the jacking plate assembly of the utility model.

[0025] In the figure: 1. AGV trolley; 2. first shear frame; 3. second shear frame; 4. lifting plate assembly; 41. lifting plate body; 411. lifting plate body; 412. dispersion chamber; 413. first through hole; 414. sliding chamber; 415. second through hole; 416. piston; 417. connecting rod; 42. lifting plate extension; 421. extension frame; 422. linkage slider; 423. linkage slider; 5. transmission assembly; 51. transmission belt; 52. first pulley; 53. tensioning assembly; 531. tensioning wheel; 532. linkage frame; 533. positioning frame; 534. adjusting screw; 535. adjusting knob; 6. driving wheel; 7. air pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figures 1 to 6 As shown, the utility model provides an AGV trolley lifting plate, including an AGV trolley 1, a controller and a driving motor are arranged inside the AGV trolley 1, a driving wheel 6 is arranged at the bottom of the AGV trolley 1, and a lifting plate assembly 4 is arranged above the AGV trolley 1, and the lifting plate assembly 4 is composed of a lifting plate body 41 and a lifting plate extension 42; due to the arrangement of the lifting plate extension 42, the four lifting plate extensions 42 can be moved at the same time on the outside of the lifting plate body 41 under the cooperation of the lifting plate body 41, so that they are close to or away from the lifting plate body 41, thereby changing the overall bearing surface of the lifting plate assembly 4, so that it is suitable for docking work of goods of different specifications and shapes, and effectively improving its scope of application;

[0028] The lifting plate extension member 42 is composed of an extension frame 421, a linkage slider 422 and a linkage slide bar 423. The four extension frames 421 are in contact with each other in sequence. The section of the extension frame 421 is L-shaped. Both ends of the extension frame 421 are provided with a linkage slider 422 and a linkage slide bar 423. The two linkage slide bars 423 are perpendicular to each other. The linkage slide bars 423 at the proximal ends of two adjacent extension frames 421 are fixedly connected.

[0029] The jacking plate body 41 includes a jacking plate main body 411 connected above the AGV cart 1. A piston 416 and a connecting rod 417 are movably installed inside the jacking plate main body 411. The outer end of the connecting rod 417 extends outside the jacking plate main body 411 and is fixedly connected to the extension frame 421.

[0030] Among them, a dispersion cavity 412 is formed in the middle of the jacking plate main body 411, a first through hole 413 is formed at the bottom of the jacking plate main body 411, and four sliding cavities 414 and a second through hole 415 are further formed inside the jacking plate main body 411 and located outside the dispersion cavity 412. One end of the sliding cavity 414 is communicated with the dispersion cavity 412 through the second through hole 415, and the other end of the sliding cavity 414 is communicated with the outside through the second through hole 415, inside the jacking plate main body 411; due to the setting of the dispersion cavity 412, the air pump 7 can inject gas into the four sliding cavities 414 at the same time, and then, with the cooperation of the second through hole 415, control the movement of the four jacking plate expansion parts 42 through the piston 416 and the connecting rod 417 at the same time.

[0031] Among them, the inner diameter of the sliding cavity 414 is larger than the inner diameter of the second through hole 415, the inner walls of the sliding cavity 414 and the second through hole 415 are smooth, and the extension lines of the axes of the sliding cavity 414 and the second through hole 415 pass through the center point and the four corners of the jacking plate main body 411.

[0032] Among them, the piston 416 is sealingly sleeved inside the sliding cavity 414, the connecting rod 417 is movably sleeved inside the second through hole 415, and the piston 416 is fixedly connected to the extension frame 421 through the connecting rod 417.

[0033] Among them, two first shear frames 2 are embedded in the left and right directions and two second shear frames 3 are embedded in the front and back directions inside the AGV cart 1. The tops of the first shear frame 2 and the second shear frame 3 are fixedly hinged to the bottom of the jacking plate main body 411. Two threaded sliding sleeves are connected to the lower ends of the first shear frame 2 and the second shear frame 3. A transmission lead screw is movably sleeved inside the threaded sliding sleeve. Bevel gears are fixedly connected to both ends of the transmission lead screw. The transmission lead screws at the lower ends of two adjacent first shear frames 2 and second shear frames 3 are connected to each other through bevel gears; one of the transmission lead screws is connected to the output shaft of the driving motor; due to the setting of the second shear frame 3, the lifting stability of the jacking plate assembly 4 can be significantly improved with the cooperation of the first shear frame 2; and due to the bevel gears connected to the transmission lead screws at the lower ends of the first shear frame 2 and the jacking plate assembly 4, the four transmission lead screws can move simultaneously, so that the two first shear frames 2 and the second shear frame 3 can move synchronously, thereby ensuring that the two first shear frames 2 and the second shear frame 3 can push the jacking plate assembly 4 to lift and lower smoothly.

[0034] Among them, a transmission component 5 is provided on each of the front and rear sides of the AGV cart 1, and an air pump 7 is embedded in the middle of the AGV cart 1. The air pump 7 is fixedly connected to the bottom of the lifting plate body 411 and communicates with the first through hole 413.

[0035] Among them, the transmission component 5 includes transmission belts 51 provided on the front and rear sides of the AGV cart 1. Two left and right first belt pulleys 52 are internally and transmission-sleeved on the transmission belts 51. The first belt pulleys 52 are fixedly connected to the front and rear ends of the left and right transmission lead screws. The upper end of the transmission belt 51 is transmission-connected to a tensioning component 53.

[0036] Among them, the tensioning component 53 includes a tensioning wheel 531 transmission-connected to the transmission belt 51. A linkage frame 532 is movably connected to the outside of the tensioning wheel 531. The linkage frame 532 is slidably clamped on the surface of the AGV cart 1. A positioning frame 533 fixedly installed on the AGV cart 1 is provided above the linkage frame 532. An adjusting lead screw 534 is threadedly sleeved inside the positioning frame 533. The upper end of the adjusting lead screw 534 penetrates through the positioning frame 533 and is fixedly connected to an adjusting knob 535. The lower end of the adjusting lead screw 534 penetrates through the positioning frame 533 and is rotationally clamped to the top of the linkage frame 532; due to the setting of the tensioning component 53, rotating the adjusting lead screw 534 under the restriction of the positioning frame 533 can make it drive the tensioning wheel 531 to slowly rise through the linkage frame 532, and then make the tensioning wheel 531 rise smoothly and slowly with the cooperation of the AGV cart 1, so that the distance between the tensioning wheel 531 and the two left and right first belt pulleys 52 can be increased, thereby improving the tension of the transmission belt 51.

[0037] The working principle and usage process of the present utility model:

[0038] Starting the device to make the drive motor operate can drive one of the first belt pulleys 52 to rotate. Then, with the cooperation of the transmission belt 51, the tensioning wheel 531 and the other first belt pulleys 52, the left and right transmission lead screws can be rotated. Then, with the cooperation of the bevel gears, the front and rear transmission lead screws can be rotated simultaneously. Due to the synchronous rotation of the four transmission lead screws, the two first shear frames 2 and the second shear frame 3 can be lifted and lowered simultaneously with the cooperation of the sliders, so that the lifting plate assembly 4 can be lifted and lowered more smoothly;

[0039] Since the movement of the air pump 7 can inject gas into the dispersion chamber 412 through the first through hole 413, the air pressure in the dispersion chamber 412 can be increased. Then, the high air pressure can push the piston 416 through the second through hole 415, and push the four expansion frames 421 to expand outward simultaneously through the connecting rod 417, thereby increasing the overall bearing area of the lifting plate assembly 4; and due to the cooperation of the linkage slider 422 and the linkage slide rod 423, it can ensure that the four synchronously moving expansion frames 421 are stable, so as to achieve stable support with the cooperation of the lifting plate body 411;

[0040] Adjust the tension of the transmission belt 51 before starting the device to ensure the stability of the operation of the first shear frame 2 and the second shear frame 3; that is, rotate the adjustment knob 535 to drive the adjustment screw rod 534 to rotate, and then, with the cooperation of the positioning frame 533, the adjustment screw rod 534 drives the linkage frame 532 to rise, and then drives the tension pulley 531 to rise, so as to increase the distance between the tension pulley 531 and the left and right first belt pulleys 52, and keep the transmission belt 51 with sufficient tension.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV trolley lifting plate, comprising an AGV trolley (1), characterized in that: The AGV trolley (1) is provided with a controller and a driving motor inside, the bottom of the AGV trolley (1) is provided with a driving wheel (6), and the top of the AGV trolley (1) is provided with a lifting plate assembly (4), and the lifting plate assembly (4) is composed of a lifting plate main body (41) and a lifting plate extension member (42); The lifting plate extension member (42) is composed of an extension frame (421), a linkage slider (422) and a linkage slide bar (423). The four extension frames (421) are in contact with each other in sequence. The section of the extension frame (421) is L-shaped. Both ends of the extension frame (421) are provided with a linkage slider (422) and a linkage slide bar (423). The two linkage slide bars (423) are perpendicular to each other. The linkage slide bars (423) at the proximal ends of two adjacent extension frames (421) are fixedly connected. The lifting plate body (41) includes a lifting plate body (411) connected to the top of the AGV trolley (1), and a piston (416) and a connecting rod (417) are movably installed inside the lifting plate body (411), and the outer end of the connecting rod (417) extends to the outside of the lifting plate body (411) and is fixedly connected to the expansion frame (421).

2. The AGV trolley lifting plate according to claim 1 is characterized in that: A dispersion chamber (412) is provided in the middle of the lifting plate body (411), a first through hole (413) is provided at the bottom of the lifting plate body (411), and four sliding chambers (414) and a second through hole (415) located outside the dispersion chamber (412) are provided inside the lifting plate body (411), one end of the sliding chamber (414) is connected to the dispersion chamber (412) through the second through hole (415), and the other end of the sliding chamber (414) is connected to the outside through the second through hole (415), and the inside of the lifting plate body (411).

3. The AGV trolley lifting plate according to claim 2 is characterized in that: The inner diameter of the sliding cavity (414) is greater than the inner diameter of the second through hole (415), the inner walls of the sliding cavity (414) and the second through hole (415) are smooth, and the extension lines of the axes of the sliding cavity (414) and the second through hole (415) pass through the center point and four corners of the lifting plate body (411).

4. The AGV trolley lifting plate according to claim 2 is characterized in that: The piston (416) is sealingly sleeved inside the sliding cavity (414), the connecting rod (417) is movably sleeved inside the second through hole (415), and the piston (416) is fixedly connected to the expansion frame (421) via the connecting rod (417).

5. The AGV trolley lifting plate according to claim 1, characterized in that: The AGV trolley (1) is internally embedded with two left and right first shear frames (2) and two front and rear second shear frames (3); the tops of the first shear frames (2) and the second shear frames (3) are fixedly hinged to the bottom of the jacking plate body (411); the lower ends of the first shear frames (2) and the second shear frames (3) are connected to two threaded sleeves; the inner movably sleeves of the threaded sleeves are connected with transmission screws; both ends of the transmission screws are fixedly connected with bevel gears; the transmission screws at the lower ends of two adjacent first shear frames (2) and second shear frames (3) are connected to each other through bevel gears; and one of the transmission screws is connected to the output shaft of the drive motor.

6. The AGV trolley lifting plate according to claim 2, characterized in that: A transmission assembly (5) is provided on both the front and rear sides of the AGV trolley (1); an air pump (7) is embedded in the middle of the AGV trolley (1); the air pump (7) is fixedly connected to the bottom of the lifting plate body (411) and is connected to the first through hole (413).

7. The AGV trolley lifting plate according to claim 6, characterized in that: The transmission assembly (5) comprises a transmission belt (51) arranged on the front and rear sides of the AGV trolley (1); the internal transmission sleeve of the transmission belt (51) is connected with two left and right first pulleys (52); the first pulleys (52) are fixedly connected to the front and rear ends of the left and right transmission screw rods; the upper end of the transmission belt (51) is transmission-connected with a tensioning assembly (53).

8. The AGV trolley lifting plate according to claim 7, characterized in that: The tensioning assembly (53) comprises a tensioning wheel (531) which is transmission-connected to the transmission belt (51); the tensioning wheel (531) is externally movably connected to a linkage frame (532); the linkage frame (532) is slidably engaged with the surface of the AGV trolley (1); a positioning frame (533) which is fixedly mounted on the AGV trolley (1) is arranged above the linkage frame (532); an adjusting screw rod (534) is internally threadedly sleeved on the positioning frame (533); the upper end of the adjusting screw rod (534) passes through the positioning frame (533) and is fixedly connected to an adjusting knob (535); the lower end of the adjusting screw rod (534) passes through the positioning frame (533) and is rotationally engaged with the top of the linkage frame (532).

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