Double-deck heavy RGV

Abstract

The present application relates to the field of logistics, especially to a double-layer heavy RGV, comprising a support frame, a walking mechanism is arranged on the support frame, a double-layer roller conveyor is fixed on the support frame, each layer of the roller conveyor comprises a plurality of connecting plates fixed on the support frame, a plurality of rollers are rotatably connected between adjacent connecting plates, a roller driving mechanism is arranged on the plurality of rollers, a plurality of arc blocks are equidistantly fixed on the outer surface of the roller, and an elastic supporting mechanism is arranged below the roller, through the arrangement of the double-layer roller conveyor, more goods can be carried at one time, the conveying efficiency of the RGV is greatly improved, through the arrangement of the elastic supporting mechanism, the roller is well supported, the stress at the connecting position between the two ends of the central shaft of the roller and the support plate is greatly reduced, thereby realizing the carrying of heavy goods, through the equidistant arrangement of a plurality of arc blocks on the outer surface of the roller, the heavy goods can be effectively forwarded, and the rotation of the roller provided with the arc blocks is not affected by the arrangement of the elastic supporting mechanism.

Description

Technical Field

[0001] This invention relates to the field of logistics, and more particularly to a double-decker heavy-duty RGV. Background Technology

[0002] RGV, short for Rail Guided Vehicle, is also known as a rail-guided shuttle. These vehicles are primarily used in warehouses with various high-density storage methods. Their aisle designs allow for arbitrary lengths, thereby increasing the overall storage capacity of the warehouse. RGVs operate without forklifts entering the aisles, thus offering enhanced safety. Suitable for automated storage and retrieval systems (AS / RS), they are crucial equipment in material handling, and their operational efficiency directly determines the overall system's processing capacity. RGVs can be categorized into installation and transport types, primarily used for material transport and workshop installation. RGVs have wide applications in logistics systems and workstation-based production lines, such as inbound / outbound platforms, various buffer stations, conveyors, elevators, and line-side workstations. By transporting materials according to plans and instructions, they can significantly reduce transportation costs and improve efficiency.

[0003] For example, patent application number CN202320093704.2 discloses an RGV vehicle, but the RGV vehicle has the following drawbacks: 1) The RGV vehicle has a small load capacity at one time, resulting in low loading efficiency; 2) The RGV vehicle cannot carry or effectively transport heavy goods. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a double-layer heavy-duty RGV that solves the problems existing in the prior art. This RGV, through the setting of a double-layer roller conveyor, greatly improves the carrying capacity of the RGV, allowing more goods to be transported at once, thus greatly improving the conveying efficiency of the RGV. The setting of arc blocks and elastic support mechanisms greatly enhances the RGV's ability to bear and transport heavy goods.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a double-layer heavy-duty RGV, including a support frame, a traveling mechanism on the support frame, a double-layer roller conveyor fixed on the support frame, each layer of roller conveyor including several connecting plates fixed on the support frame, several rollers rotatably connected between adjacent connecting plates, a roller drive mechanism on the rollers, several arc-shaped blocks equidistantly fixed on the outer surface of the rollers, and an elastic support mechanism below the rollers.

[0008] Preferably, there are two sets of walking mechanisms, which are respectively set at the left and right ends of the support frame. Each set of walking mechanisms includes a first motor fixed at the bottom of the support frame. An active walking wheel is fixed on the rotating shaft of the first motor. A matching walking track is provided below the active walking wheel. A driven walking wheel is provided on the opposite side of the active walking wheel. The driven walking wheel is rotatably connected to the bottom of the support frame.

[0009] Preferably, the roller drive mechanism includes a driven gear disposed at one end of the roller, a transmission chain connecting adjacent driven gears, a drive gear connected to one of the transmission chains, the drive gear being fixed on the rotating shaft of a second motor, and the second motor being fixed below the roller conveyor.

[0010] Preferably, anti-collision strips are fixed on the front and rear sides of the bottom end of the support frame.

[0011] Preferably, the left and right ends of the roller conveyor are provided with a stop mechanism. The stop mechanism includes a support plate fixed to the bottom of the connecting plate, a number of cylinders fixed on the support plate, and a stop rod fixed to the end of the piston rod of the cylinder.

[0012] Preferably, the elastic support mechanism includes a top plate disposed below the roller, with the upper ends of inclined plates hinged to both sides of the top plate, the lower ends of the inclined plates being slidably connected to a fixed plate, the fixed plate being connected between two adjacent connecting plates, and several springs connecting the fixed plate and the top plate.

[0013] Preferably, a slider is fixed on the bottom surface of the inclined plate, and a groove matching the slider is provided on the fixed plate.

[0014] Preferably, three arc-shaped blocks are evenly distributed on the outer surface of the roller.

[0015] Preferably, the chute is provided with an anti-compression mechanism, which includes several sliding plates that are slidably connected to the chute. The sliding plate closest to the inclined plate is fixedly connected to the inclined plate. Several telescopic rhomboid frames are hinged between adjacent sliding plates. Support frames are fixed on the front and rear end faces of the hinge shaft at the top of the telescopic rhomboid frames. Anti-compression blocks are fixed on the top surface of the support frames.

[0016] Preferably, the anti-compression block includes a first metal plate fixed to the support frame, a spring layer fixed to the upper surface of the first metal plate, a second metal plate fixed to the upper end of the spring layer, and a rubber layer fixed to the upper surface of the second metal plate.

[0017] (III) Beneficial Effects

[0018] 1. This invention, through the setting of a double-layer roller conveyor, can carry more goods at one time, greatly improving the conveying efficiency of the RGV. The setting of the elastic support mechanism provides good support for the rollers, greatly reducing the stress at the connection between the two ends of the roller central shaft and the support plate, thereby realizing the transport of heavy goods. By setting several arc-shaped blocks at equal intervals on the outer surface of the rollers, gaps are formed between adjacent arc-shaped blocks. When transferring heavy goods on the rollers to the shelf, the heavy goods can be effectively conveyed forward. At the same time, the setting of the elastic support mechanism does not affect the rotation of the rollers with arc-shaped blocks, and also plays a good role in shock absorption.

[0019] 2. This invention uses three arc-shaped blocks evenly distributed on the outer surface of the roller. This allows for efficient transport of heavy goods while ensuring that the recessed roller portion between adjacent arc-shaped blocks is relatively large. This allows the recessed roller portion to contact the upper surface of the top plate or the lower surface of the goods when rotating above the top plate or below the goods. This allows for alternating transport of goods using arc-shaped blocks and rollers, providing excellent protection for the arc-shaped blocks and reducing the load on the rotating rollers. An anti-pressure mechanism is installed within the chute. Through the linkage between the elastic support mechanism and the anti-pressure mechanism, it provides excellent buffering and shock absorption at the moment the transport of goods transitions from arc-shaped blocks to rollers, preventing goods from falling directly onto the rollers and causing damage. Furthermore, the anti-pressure mechanism effectively prevents goods from jamming. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall invention.

[0021] Figure 2 This is a schematic diagram of the roller, arc-shaped block, and elastic support mechanism of the present invention.

[0022] Figure 3 For the present invention Figure 1 A bottom view.

[0023] Figure 4 This is a schematic diagram of the overall invention.

[0024] Figure 5 This is a schematic diagram of the elastic support mechanism of the present invention.

[0025] Figure 6 This is a cross-sectional view of the roller, arc-shaped block, elastic support mechanism, and anti-compression mechanism of the present invention.

[0026] Figure 7 This is a cross-sectional view of the roller, arc-shaped block, elastic support mechanism, and anti-compression mechanism of the present invention.

[0027] Figure 8 This is a schematic diagram of the hinge shaft and support frame of the present invention.

[0028] Figure 9 This is a cross-sectional view of the anti-compression block of the present invention.

[0029] In the diagram: 1-Support frame, 2-Walking mechanism, 3-Roller conveyor, 4-Connecting plate, 5-Roller, 6-Roller drive mechanism, 7-Arc block, 8-Elastic support mechanism, 9-First motor, 10-Driving wheel, 11-Walking track, 12-Driven wheel, 13-Driven gear, 14-Transmission chain, 15-Driving gear, 16-Second motor, 17-Anti-collision strip, 18-Stop mechanism, 19-Support plate, 20-Cylinder, 21-Stop bar, 22-Top plate, 23-Inclined plate, 24-Fixed plate, 25-Spring, 26-Slider, 27-Slide groove, 28-Pressure-resistant mechanism, 29-Sliding plate, 30-Telescopic diamond frame, 31-Hinge shaft, 32-Support frame, 33-Pressure-resistant block, 34-First metal plate, 35-Spring layer, 36-Second metal plate, 37-Rubber layer. Detailed Implementation

[0030] The following will be based on embodiments of the present invention. Figure 1-9 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides a technical solution: a double-layer heavy-duty RGV, as described above. Figure 1-4The RGV includes a support frame 1, a traveling mechanism 2 mounted on the support frame 1, and a double-layer roller conveyor 3 fixed on the support frame 1. Each layer of roller conveyor 3 includes several connecting plates 4 fixed on the support frame 1. Several rollers 5 are rotatably connected between adjacent connecting plates 4. Roller drive mechanisms 6 are mounted on the rollers 5. Several arc-shaped blocks 7 are fixed at equal intervals on the outer surface of the rollers 5. An elastic support mechanism 8 is provided below the rollers 5. The RGV in this application can carry more goods at once through the double-layer roller conveyor 3, greatly improving the conveying efficiency of the RGV. After loading goods, the RGV moves through the traveling mechanism 2 to transport the goods to the designated location. The double-layer roller conveyor 3 can be matched with double-layer shelves, and the goods are simultaneously transferred to the first and second layers of the shelves through the rollers 5 and the roller conveyor mechanism 6, greatly improving efficiency. Three connecting plates 4 can be set, so that two loading and delivery channels will be formed on each layer of roller conveyor 3, and four loading and delivery channels will be formed on the entire RGV. The length of the loading and delivery channels can be set as needed. The elastic support mechanism 8 is installed below each roller 5, which provides excellent support for the roller 5 and enables it to carry heavy goods. Without this elastic support mechanism 8, heavy goods placed on the roller 5 would put great pressure on the roller 5. The support of the roller 5 relies entirely on the connection between the two ends of the roller 5's central shaft and the connecting plate 4. This can easily cause damage to the connection between the two ends of the roller 5's central shaft and the connecting plate 4, as well as deformation of the part of the central shaft exposed on the roller 5, leading to the failure of the entire roller drive mechanism 8 and the inability to transport goods. Therefore, the setting of the elastic support mechanism 8 provides excellent support for the roller 5, greatly reducing the stress on the connection between the two ends of the roller 5's central shaft and the connecting plate 4, thereby enabling the transport of heavy goods. When there is no goods on the roller 5, the elastic support mechanism 8 exerts an upward compressive force on the roller 5, that is, the elastic support mechanism 8 is in a certain degree of compression state. Several arc-shaped blocks 7 are equidistantly arranged on the outer surface of the roller 5, so that gaps are formed between adjacent arc-shaped blocks 7. This allows the heavy goods on the roller 5 to be effectively conveyed forward when transferred to the shelf. If an ordinary roller without arc-shaped blocks 7 is used, it is difficult to convey heavy goods forward because the heavy goods are too heavy and the pressure on the roller is too great. The roller is prone to spinning without conveying the goods forward. Therefore, the setting of arc-shaped blocks 7 enables the effective transfer of heavy goods on the roller 5. At the same time, the setting of elastic support mechanism 8 does not affect the rotation of the roller 5 with arc-shaped blocks 7.

[0032] Reference Figure 3Two sets of walking mechanisms 2 are provided, one on the left and one on the right of the support frame 1, respectively. Each set of walking mechanisms 2 includes a first motor 9 fixed to the bottom of the support frame 1. A driving wheel 10 is fixed on the rotating shaft of the first motor 9. A matching walking track 11 is provided below the driving wheel 10. A driven wheel 12 is provided on the opposite side of the driving wheel 10. The driven wheel 12 is rotatably connected to the bottom of the support frame 1. The specific working principle of the walking mechanism 2 is as follows: When goods need to be transported, both first motors 9 are started simultaneously, which drives the driving wheel 10 to rotate, and then the driving wheel 12 moves along the walking track 11. At the same time, the driven wheel 12 moves along the walking track 11, thus realizing the transportation of goods. By setting two sets of walking mechanisms 2, the driving force is greatly improved, making it suitable for the transportation of heavy goods.

[0033] Reference Figure 3-4 The roller drive mechanism 6 includes a driven gear 13 disposed at one end of the roller 5, and a transmission chain 14 connecting adjacent driven gears 13. One of the transmission chains 14 is connected to a drive gear 15, which is fixed on the rotating shaft of a second motor 16. The second motor 16 is fixed below the roller conveyor 3. When it is necessary to transfer goods on the roller 5, the second motor 16 is started, which drives the drive gear 15 to rotate, and drives the driven gear 13 to rotate through the transmission chain 14, which in turn drives the roller 5 to rotate, thereby realizing the transfer of goods on the roller 5.

[0034] Reference Figure 4 Anti-collision strips 17 are fixed on the front and rear sides of the bottom end of the support frame 1. The anti-collision strips 17 play a good anti-collision role during the movement of the RGV.

[0035] Reference Figure 4 The roller conveyor 3 is equipped with a stop mechanism 18 at both ends. The stop mechanism 18 includes a support plate 19 fixed to the bottom of the connecting plate 4. Several cylinders 20 are fixed on the support plate 19. The piston rod end of the cylinder 20 is fixed with a stop rod 21. When the RGV is transporting goods, the stop rod 21 is in an extended state to block the goods and prevent them from falling from the left and right ends of the roller conveyor 3. For the safety of the goods, side baffles can also be set on the front and rear sides of the roller conveyor 3. When the goods are delivered to the designated location, the cylinder 20 is activated, causing the stop rod 21 to descend to a position that facilitates the transfer of goods.

[0036] Reference Figure 2 and Figure 5The elastic support mechanism 8 includes a top plate 22 disposed below the roller 5. The upper ends of inclined plates 23 are hinged to both sides of the top plate 22. The lower ends of the inclined plates 23 are slidably connected to a fixed plate 24. The fixed plate 24 is connected between two adjacent connecting plates 4. Several springs 25 are connected between the fixed plate 24 and the top plate 22. When the roller 5 rotates and transports heavy goods, the arc-shaped block 7 on the roller 5 begins to press the top plate 22 downwards as soon as it contacts the top plate 22. Due to the springs 25, the top plate 22 is pressed downwards, and this downward movement of the top plate 22 causes… The lower ends of the two inclined plates 23 that are hinged to it slide away from the top plate 22 until an arc block 7 presses against the top plate 22. Then, the roller 5 between the two arc blocks 7 comes into contact with the top plate 22. At this time, since there is no pressure from the arc block 7, the spring 25 will rebound, and the top plate 22 will move upward. This cycle repeats. During the process of transporting goods, the top plate 22 will be continuously pressed down and rebounded. This process not only provides good support for the roller 5, but also does not affect the rotation of the roller 5, and also provides good shock absorption.

[0037] Reference Figure 5 A slider 26 is fixed on the bottom surface of the inclined plate 23, and a groove 27 matching the slider 26 is provided on the fixed plate 24. The sliding connection between the inclined plate 23 and the fixed plate 24 is achieved through the cooperation of the slider 26 and the groove 27.

[0038] Reference Figure 6-8 Three arc-shaped blocks 7 are evenly distributed on the outer surface of the roller 5. An anti-compression mechanism 28 is provided inside the chute 27. The anti-compression mechanism 28 includes several sliding plates 29 slidably connected to the chute 27. The sliding plate 29 closest to the inclined plate 23 is fixedly connected to the inclined plate 23. Several telescopic rhomboid frames 30 are hinged between adjacent sliding plates 29. A support frame 32 is fixed to the front and rear ends of the hinge shaft 31 at the top of the telescopic rhomboid frame 30. An anti-compression block 33 is fixed to the top surface of the support frame 32. The specific working principle of the anti-compression mechanism 28 is as follows: When the roller 5 and the arc-shaped blocks 7 are in the following positions... Figure 6As shown, the goods are located on the topmost arc-shaped block 7, meaning they are at a high position. At this time, the roller 5 between the other two arc-shaped blocks 7 is in contact with the top plate 22. The top plate 22 is not compressed by the arc-shaped blocks 7 and is therefore at a high position. The upper surface of the anti-pressure block 33 is flush with the highest point of the roller 5. When the roller 5 rotates (assuming clockwise), the lower arc-shaped blocks 7 begin to press down on the top plate 22. During this downward compression, the lower ends of the two inclined plates 23 hinged to it slide away from the top plate 22 within the groove 27, pushing the sliding plate 29 away from the top plate 22. This compresses the telescopic diamond frame 30, causing its upper end to rise, thus raising the anti-pressure block 33. The height of the upper surface of the anti-pressure block 33 will then be higher than the height of the highest point of the roller 5. As the roller 5 rotates... As the roller rotates, the arc-shaped block 7 (the uppermost arc-shaped block 7), which was originally in contact with the bottom surface of the goods, will rotate to the right and move away from the bottom surface of the goods. The moment the arc-shaped block 7 leaves the bottom surface of the goods, the goods will instantly fall downwards, landing on the roller 5 between the two arc-shaped blocks 7. Since the height of the upper surface of the anti-pressure block 33 is higher than the height of the highest point of the roller 5 at this time, the goods will contact the anti-pressure block 33 during the fall. The anti-pressure block 33 provides excellent cushioning and shock absorption, preventing the goods from directly falling onto the roller 5 and damaging it. As the roller 5 continues to rotate, the next arc-shaped block 7 will contact the lower surface of the goods. At this time, the roller 5 section between the two adjacent arc-shaped blocks 7 will contact the top plate 22. The top plate 22 will then rebound upwards, causing the anti-pressure block 33 to descend until its upper surface is level with the highest point of the roller 5. This cycle repeats continuously. Additionally, the anti-pressure mechanism 28 also effectively prevents goods from jamming. The arc-shaped blocks 7 are arranged in three pieces and are evenly distributed on the outer surface of the roller 5. This allows for the effective transfer of heavy goods and also makes the recessed part of the roller 5 between two adjacent arc-shaped blocks 7 relatively large. This allows the recessed part of the roller 5 to contact the upper surface of the top plate 22 or the lower surface of the goods when it rotates above the top plate 22 or below the goods. The transfer of goods can be carried out in an alternating manner between the arc-shaped blocks 7 and the roller 5, which provides good protection for the arc-shaped blocks 7 and reduces the load on the roller 5 during rotation.

[0039] Reference Figure 9The anti-compression block 33 includes a first metal plate 34 fixed on the support frame 32. A spring layer 35 is fixed on the upper surface of the first metal plate 34. A second metal plate 36 is fixed on the upper end of the spring layer 35. A rubber layer 37 is fixed on the upper surface of the second metal plate 36. The anti-compression block 33 has good anti-compression performance through this structure. In order to make the transfer of goods smoother, another metal plate can be fixed on the upper surface of the rubber layer 37, and the upper surface of the metal plate is made smooth.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-layer heavy-duty RGV, characterized in that, The system includes a support frame (1), on which a traveling mechanism (2) is provided. A double-layer roller conveyor (3) is fixed on the support frame (1). Each layer of the roller conveyor (3) includes several connecting plates (4) fixed on the support frame (1). Several rollers (5) are rotatably connected between adjacent connecting plates (4). Roller drive mechanisms (6) are provided on the rollers (5). Several arc-shaped blocks (7) are fixed at equal intervals on the outer surface of the rollers (5). Three arc-shaped blocks (7) are distributed at equal intervals on the outer surface of the rollers (5). An elastic support mechanism is provided below the rollers (5). The elastic support mechanism (8) includes a top plate (22) disposed below the roller (5). The upper ends of inclined plates (23) are hinged to both sides of the top plate (22). The lower ends of the inclined plates (23) are slidably connected to a fixed plate (24). The fixed plate (24) is connected between two adjacent connecting plates (4). Several springs (25) are connected between the fixed plate (24) and the top plate (22). A slider (26) is fixed on the bottom surface of the inclined plate (23). A groove (27) matching the slider (26) is opened on the fixed plate (24). When the roller (5) rotates and transports heavy goods on it, the arc block (7) on the roller (5) just contacts the top plate (22) and begins to press the top plate (22) downward. Due to the setting of the spring (25), the top plate (22) is pressed downward. The downward movement of the top plate (22) will cause the lower ends of the two inclined plates (23) hinged to it to slide away from the top plate (22) until an arc block (7) presses through the top plate (22). After that, the part of the roller (5) between the two arc blocks (7) contacts the top plate (22). At this time, since there is no pressure from the arc block (7), the spring (25) will rebound, and the top plate (22) will move upward. This cycle repeats. During the transport of goods, the top plate (22) will be continuously pressed down and rebounded. This process not only provides good support for the roller (5) but also does not affect the rotation of the roller (5) and also provides good shock absorption.

2. The double-layer heavy-duty RGV according to claim 1, characterized in that, The walking mechanism (2) is provided in two sets. The two sets of walking mechanisms (2) are respectively located at the left and right ends of the support frame (1). Each set of walking mechanisms (2) includes a first motor (9) fixed at the bottom of the support frame (1). An active walking wheel (10) is fixed on the rotating shaft of the first motor (9). A matching walking track (11) is provided below the active walking wheel (10). A driven walking wheel (12) is provided on the opposite side of the active walking wheel (10). The driven walking wheel (12) is rotatably connected to the bottom of the support frame (1).

3. The double-layer heavy-duty RGV according to claim 1, characterized in that, The roller drive mechanism (6) includes a driven gear (13) disposed at one end of the roller (5), and a transmission chain (14) connecting adjacent driven gears (13). A drive gear (15) is connected to one of the transmission chains (14), and the drive gear (15) is fixed on the rotating shaft of a second motor (16). The second motor (16) is fixed below the roller conveyor (3).

4. A double-layer heavy-duty RGV according to claim 1, characterized in that, The support frame (1) has anti-collision strips (17) fixed on the front and rear sides of its bottom end.

5. A double-layer heavy-duty RGV according to claim 1, characterized in that, The roller conveyor (3) is provided with a stop mechanism (18) at both ends. The stop mechanism (18) includes a support plate (19) fixed at the bottom of the connecting plate (4). Several cylinders (20) are fixed on the support plate (19). A stop rod (21) is fixed at the end of the piston rod of the cylinder (20).

6. A double-layer heavy-duty RGV according to claim 1, characterized in that, The slide groove (27) is provided with an anti-compression mechanism (28). The anti-compression mechanism (28) includes several sliding plates (29) that are slidably connected to the slide groove (27). The sliding plate (29) closest to the inclined plate (23) is fixedly connected to the inclined plate (23). Several telescopic rhomboid frames (30) are hinged between adjacent sliding plates (29). A support frame (32) is fixed on the front and rear end faces of the hinge shaft (31) at the top of the telescopic rhomboid frame (30). An anti-compression block (33) is fixed on the top surface of the support frame (32).

7. A double-layer heavy-duty RGV according to claim 6, characterized in that, The anti-compression block (33) includes a first metal plate (34) fixed on the support frame (32), a spring layer (35) fixed on the upper surface of the first metal plate (34), a second metal plate (36) fixed at the upper end of the spring layer (35), and a rubber layer (37) fixed on the upper surface of the second metal plate (36).

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