Lifting heavy RGV

Abstract

The invention relates to the field of logistics, in particular to a lifting heavy RGV which comprises a supporting frame, a walking mechanism and a lifting mechanism are arranged on the supporting frame, a conveying frame is connected to the lifting mechanism and comprises a plurality of supporting plates, the two ends of the supporting plates are connected through connecting plates, and a plurality of rollers are rotationally connected between the adjacent supporting plates. A plurality of rollers are arranged on the lifting mechanism, a roller driving mechanism is arranged on the rollers, a plurality of arc-shaped blocks are fixed to the outer surfaces of the rollers at equal intervals, and an elastic supporting mechanism is arranged below the rollers. Goods can be lifted to the height of a required goods shelf layer through the arrangement of the lifting mechanism, and the overall goods carrying capacity of the RGV is greatly improved through the arrangement of the rollers and the roller driving mechanism; by means of the arrangement of the arc-shaped blocks and the elastic supporting mechanisms, the carrying efficiency is greatly improved, the rollers are well supported through the arrangement of the elastic supporting mechanisms, carrying of heavy goods is achieved, and the carrying capacity and the conveying capacity of the RGV to the heavy goods are greatly improved through the arrangement of the arc-shaped blocks and the elastic supporting mechanisms.

Description

Technical Field

[0001] The present invention relates to the field of logistics, and in particular to a lifting heavy-duty RGV. Background Art

[0002] With the development of science and technology in my country and the accession to WTO, the concept of modern logistics has been deeply rooted in the hearts of the people. The majority of users have a common understanding that the logistics and warehousing system plays a role in promoting the development of various industries. Then came the automated logistics system and automated warehouse. With the development of automated logistics systems and automated warehouses in China and even the world, many shortcomings of general automated systems and warehouses have been exposed. In order to make up for these shortcomings, RGV (rail-mounted shuttle vehicle) was born. It can be easily connected to other logistics systems automatically, such as in / out platforms, various buffer stations, conveyors, elevators and robots, etc., to transport materials according to the plan. In addition, it does not require human operation and has a fast running speed. For example, the patent with application number CN202221749665.9 discloses a straight-track RGV conveyor vehicle, but the RGV conveyor vehicle still has the following disadvantages: 1) the RGV conveyor vehicle can only transport goods to shelves at the same height as the RGV conveyor vehicle, and cannot transport goods to shelves on the second or third floors that are higher than the RGV conveyor vehicle; 2) the RGV conveyor vehicle has a small one-time cargo capacity, resulting in low loading efficiency; 3) the RGV conveyor vehicle cannot carry and effectively transport heavy goods. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a lifting heavy-duty RGV, which solves the problems existing in the prior art. The RGV can transport goods to different levels of the shelf through the setting of a lifting mechanism. The setting of several groups of rollers and roller driving mechanisms greatly improves the cargo carrying capacity of the RGV, and more goods can be transported at one time, which greatly improves the transportation efficiency. The setting of arc blocks and elastic support mechanisms greatly improves the carrying capacity and transmission capacity of the RGV for heavy goods.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lifting heavy-duty RGV, comprising a support frame, a walking mechanism and a lifting mechanism are provided on the support frame, a transmission frame is connected to the lifting mechanism, the transmission frame comprises a plurality of support plates, both ends of the plurality of support plates are connected by connecting plates, a plurality of rollers are rotatably connected between adjacent support plates, a roller driving mechanism is provided on the plurality of rollers, a plurality of arc blocks are equidistantly fixed on the outer surface of the rollers, and an elastic support mechanism is provided under the rollers.

[0007] Preferably, the elastic support mechanism includes a top plate arranged below the roller, the upper ends of the inclined plates are hinged on both sides of the top plate, the lower end of the inclined plate is slidably connected to the fixed plate, the fixed plate is connected between two adjacent support plates, and a number of springs are connected between the fixed plate and the top plate.

[0008] Preferably, a sliding block is fixed on the bottom surface of the inclined plate, and a sliding groove matching the sliding block is provided on the fixed plate.

[0009] Preferably, three arc-shaped blocks are evenly distributed on the outer surface of the roller.

[0010] Preferably, a pressure-resistant mechanism is provided in the slide groove, which includes several sliding plates slidably connected to the slide groove, the sliding plate closest to the inclined plate is fixedly connected to the inclined plate, several telescopic diamond frames are hinged between adjacent sliding plates, support frames are fixed on the front and rear end surfaces of the hinge shaft at the top of the telescopic diamond frame, and a pressure-resistant block is fixed on the top surface of the support frame.

[0011] Preferably, the anti-compression block comprises a first metal plate fixed on the support frame, a spring layer is fixed to the upper surface of the first metal plate, a second metal plate is fixed to the upper end of the spring layer, and a rubber layer is fixed to the upper surface of the second metal plate.

[0012] Preferably, the lifting mechanism includes a first motor fixed at the middle position of the top of the support frame, a first bevel gear is connected to the rotating shaft of the first motor, the first bevel gear is meshed with the second bevel gear, a first transmission shaft is passed through and fixed at the center position of the second bevel gear, third bevel gears are fixed at both ends of the first transmission shaft, the third bevel gear is meshed with a fourth bevel gear, a second transmission shaft is passed through and fixed at the center position of the fourth bevel gear, fifth bevel gears are fixed at both ends of the second transmission shaft, the fifth bevel gear is meshed with a sixth bevel gear, an upper end of the sixth bevel gear is passed through and fixed at the center position of a screw rod, the lower end of the screw rod is rotatably connected to the bottom of the support frame, a nut seat matching it is provided on the screw rod, a lifting plate is fixed on the nut seat, and the lifting plate is fixed to the bottom of the transmission frame.

[0013] Preferably, a first protective box is provided outside the first bevel gear and the second bevel gear, a second protective box is provided outside the third bevel gear and the fourth bevel gear, and a third protective box is provided outside the fifth bevel gear and the sixth bevel gear, and the first protective box, the second protective box and the third protective box are all fixed on the top of the support frame.

[0014] Preferably, the walking mechanism includes a second motor fixed at the bottom of the support frame, a seventh bevel gear is connected to the rotating shaft of the second motor, the seventh bevel gear is meshed with an eighth bevel gear, a fourth protective box is provided on the outside of the seventh bevel gear and the eighth bevel gear, a third transmission shaft is fixed through the center position of the eighth bevel gear, driving walking wheels are fixed at both ends of the third transmission shaft, and two driven walking wheels are also provided on the support frame.

[0015] Preferably, the roller driving mechanism includes a driven gear arranged at one end of the roller, a transmission chain is connected between adjacent driven gears, one of the transmission chains is connected to a driving gear, the driving gear is fixed on the rotating shaft of the third motor, the third motor is fixed on the motor support plate, and the motor support plate is fixed on the bottom of the support plate.

[0016] (III) Beneficial effects

[0017] 1. The present invention can lift the goods to the height of the required shelf level through the setting of the lifting mechanism. Through the setting of a plurality of rollers and roller driving mechanisms, the overall cargo capacity of the RGV is greatly improved, thereby greatly improving the efficiency of cargo loading. The setting of the elastic support mechanism plays a good supporting role on the roller, greatly reducing the force at the connection between the two ends of the central axis of the roller and the support plate, thereby realizing the carrying of heavy goods. By equidistantly setting a plurality of arc blocks on the outer surface of the roller, gaps will be formed between adjacent arc blocks, so that when the heavy goods on the roller are transferred to the shelf, the heavy goods can be effectively transferred forward. At the same time, the setting of the elastic support mechanism does not affect the rotation of the roller provided with the arc blocks, and also plays a good shock absorbing role.

[0018] 2. The present invention arranges three arc blocks and distributes them equidistantly on the outer surface of the roller. This can effectively transport heavy goods on the one hand, and can make the recessed roller part between two adjacent arc blocks relatively larger on the other hand, so that the recessed roller part can contact the upper surface of the top plate or the lower surface of the goods when it rotates above the top plate or below the goods. In this way, the goods can be transported in an alternating manner of arc blocks and rollers, which has a good protective effect on the arc blocks and reduces the burden of roller rotation. A pressure-resistant mechanism is provided in the slide groove, and through the linkage between the elastic support mechanism and the pressure-resistant mechanism, it has a good buffering and shock-absorbing effect at the moment when the transmission of the goods by the arc blocks is converted to the transmission of the goods by the rollers, thereby preventing the goods from falling directly onto the rollers and causing damage to the rollers. In addition, the pressure-resistant mechanism also has a good effect of preventing goods from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the roller and the elastic support mechanism of the present invention.

[0021] Figure 3 It is a schematic diagram of the elastic support mechanism of the present invention.

[0022] Figure 4 It is a cross-sectional view of the roller, elastic support mechanism and pressure-resistant mechanism of the present invention.

[0023] Figure 5 It is a cross-sectional view of the roller, elastic support mechanism and pressure-resistant mechanism of the present invention.

[0024] Figure 6 It is a schematic diagram of the hinge shaft and the support frame of the present invention.

[0025] Figure 7 It is a cross-sectional view of the compression block of the present invention.

[0026] Figure 8 It is an overall schematic diagram of the present invention.

[0027] Fig. 9 For the present invention Figure 8 Bottom view of .

[0028] In the figure: 1-support frame, 2-travel mechanism, 3-lifting mechanism, 4-transmission frame, 5-support plate, 6-connecting plate, 7-roller, 8-roller driving mechanism, 9-arc block, 10-elastic support mechanism, 11-top plate, 12-inclined plate, 13-fixed plate, 14-spring, 15-slider, 16-slide groove, 17-anti-pressure mechanism, 18-sliding plate, 19-telescopic diamond frame, 20-hinge shaft, 21-support frame, 22-anti-pressure block, 23-first metal plate, 24-spring layer, 25 -second metal plate, 26-rubber layer, 27-first motor, 28-first transmission shaft, 29-second transmission shaft, 30-screw, 31-nut seat, 32-lifting plate, 33-first protection box, 34-second protection box, 35-third protection box, 36-second motor, 37-fourth protection box, 38-third transmission shaft, 39-driving walking wheel, 40-driven walking wheel, 41-driven gear, 42-transmission chain, 43-driving gear, 44-third motor, 45-motor support plate. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention Figure 1-9 The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides a technical solution: a lifting heavy RGV, including a support frame 1, a walking mechanism 2 and a lifting mechanism 3 are arranged on the support frame 1, a transmission frame 4 is connected to the lifting mechanism 3, and the transmission frame 4 includes a plurality of support plates 5, both ends of the plurality of support plates 5 are connected by a connecting plate 6, a plurality of rollers 7 are rotatably connected between adjacent support plates 5, a plurality of rollers 7 are provided with a roller driving mechanism 8, a plurality of arc blocks 9 are equidistantly fixed on the outer surface of the roller 7, and an elastic supporting mechanism 10 is arranged below the roller 7. After the RGV in the present application is loaded with goods, it is moved by the walking mechanism 2 to transport the goods to a designated location, the goods can be raised to the height of the required shelf level by the setting of the lifting mechanism 3, and the goods are transferred to the shelf by the setting of the rollers 7 and the roller driving mechanism 8. The setting of the plurality of rollers 7 and the roller driving mechanism 8 greatly improves the overall cargo capacity of the RGV, thereby greatly improving the efficiency of cargo loading, wherein the support plates 5 can be set to six pieces, so that there are five cargo loading and delivery channels on the RGV. The elastic support mechanism 10 is provided under each roller 7, which plays a good supporting role for the roller 7, so that heavy goods can be carried. Because without this elastic support mechanism 10, heavy goods placed on the roller 7 will cause great pressure on the roller 7, and the support of the roller 7 depends entirely on the connection between the two ends of the central axis of the roller 7 and the support plate 5, which can easily cause damage to the connection between the two ends of the central axis of the roller 7 and the support plate 5 and deformation of the part of the central axis exposed from the roller 7, thereby causing the failure of the entire roller drive mechanism 8 and the inability to transport the goods. Therefore, the setting of the elastic support mechanism 10 plays a good supporting role for the roller 7, greatly reducing the force at the connection between the two ends of the central axis of the roller 7 and the support plate 5, thereby realizing the carrying of heavy goods. When there is no goods placed on the roller 7, the elastic support mechanism 10 has an upward squeezing force on the roller 7, that is to say, the elastic support mechanism 10 is in a squeezed state to a certain extent. A number of arc blocks 9 are equidistantly arranged on the outer surface of the roller 7, so that gaps are formed between adjacent arc blocks 9, so that when heavy goods on the roller 7 are transferred to the shelf, the heavy goods can be effectively transported forward. If ordinary rollers are not provided with arc blocks 9, it is difficult to transport the heavy goods forward when transporting the heavy goods, because the heavy goods are too heavy and the pressure on the rollers is too great, and the rollers are prone to idling and cannot transport the goods on them forward. Therefore, the heavy goods are effectively transported on the rollers 7 through the arrangement of the arc blocks 9, and the arrangement of the elastic support mechanism 10 does not affect the rotation of the rollers 7 provided with the arc blocks 9.

[0031] refer to Figure 2-3The elastic support mechanism 10 includes a top plate 11 arranged below the roller 7. The upper ends of the inclined plates 12 are hinged on both sides of the top plate 11. The lower ends of the inclined plates 12 are slidably connected to the fixed plates 13. The fixed plates 13 are connected between two adjacent support plates 5. A plurality of springs 14 are connected between the fixed plates 13 and the top plate 11. When the roller 7 rotates to transmit the heavy goods thereon, the arc block 9 on the roller 7 just contacts the top plate 11 and starts to squeeze the top plate 11 downward. Due to the setting of the spring 14, the top plate 11 is squeezed downward and moves downward, and the downward movement of the top plate 11 will cause The lower ends of the two inclined plates 12 hinged thereto slide to the side away from the top plate 11 until an arc block 9 squeezes through the top plate 11. After that, the part of the roller 7 between the two arc blocks 9 contacts the top plate 11. At this time, since there is no squeezing of the arc block 9, the spring 14 will rebound and the top plate 11 will move upward. This cycle is repeated. During the transportation of goods, the top plate 11 will be continuously pressed down and rebounded. This process not only plays a good supporting role for the roller 7, but also does not affect the rotation of the roller 7, and also plays a good shock-absorbing role.

[0032] refer to Figure 3 A slider 15 is fixed on the bottom surface of the inclined plate 12, and a slide groove 16 matching the slider 15 is opened on the fixed plate 13. The sliding connection between the inclined plate 12 and the fixed plate 13 is realized by the cooperation of the slider 15 and the slide groove 16.

[0033] refer to Figure 4-5 There are three arc blocks 9 evenly distributed on the outer surface of the roller 7. A pressure-resistant mechanism 17 is provided in the slide groove 16. The pressure-resistant mechanism 17 includes a plurality of sliding plates 18 slidably connected to the slide groove 16. The sliding plate 18 closest to the inclined plate 12 is fixedly connected to the inclined plate 12. A plurality of telescopic diamond frames 19 are hinged between adjacent sliding plates 18. A support frame 21 is fixed on the front and rear end surfaces of the hinge shaft 20 at the top of the telescopic diamond frame 19. A pressure-resistant block 22 is fixed on the top surface of the support frame 21. The specific working principle of the pressure-resistant mechanism 17 is as follows: When the positions of the roller 7 and the arc block 9 are as follows: Figure 4As shown in the figure, at this time, the goods are located on the uppermost arc block 9, that is to say, the goods are in a high position, and at this time, the part of the roller 7 between the other two arc blocks 9 is in contact with the top plate 11. The top plate 11 is in a high position because it is not squeezed by the arc block 9. At this time, the upper surface of the anti-compression block 22 is flush with the highest point of the roller 7. When the roller 7 rotates (assuming it rotates clockwise), the arc block 9 on the lower side will begin to squeeze the top plate 11 downward. In the process of the top plate 11 being squeezed downward, the lower ends of the two inclined plates 12 hinged thereto will slide in the slide groove 16 toward the side away from the top plate 11, thereby pushing the sliding plate 18 to slide toward the side away from the top plate 11, thereby squeezing the telescopic diamond frame 19, and then raising the upper end of the telescopic diamond frame 19, thereby raising the anti-compression block 22, and the height of the upper surface of the anti-compression block 22 will be higher than the height of the highest point of the roller 7. The arc block 9 (that is, the top arc block 9) originally in contact with the bottom surface of the goods will turn right away from the bottom surface of the goods. When the arc block 9 leaves the bottom surface of the goods, the goods will instantly fall downward, that is, fall onto the roller 7 between the two arc blocks 9. Since the height of the upper surface of the anti-pressure block 22 is higher than the height of the highest point of the roller 7 at this time, the goods are in contact with the anti-pressure block 22 during the falling process. The anti-pressure block 22 plays a good buffering and shock absorbing role, preventing the goods from falling directly onto the roller 7 and causing damage to the roller 7. Then, as the roller 7 continues to rotate, the next arc block 9 will contact the lower surface of the goods. At this time, the part of the roller 7 between the two adjacent arc blocks 9 will contact the top plate 11. At this time, the top plate 11 will rebound upward, thereby causing the anti-pressure block 22 to drop until it drops to the point where its upper surface is flush with the highest point of the roller 7, and the cycle repeats. In addition, the anti-pressure mechanism 17 also plays a good role in preventing goods from getting stuck. The arc blocks 9 are arranged in three pieces and are evenly distributed on the outer surface of the roller 7. This can effectively transport heavy goods on the one hand, and can make the recessed portion of the roller 7 between two adjacent arc blocks 9 relatively larger on the other hand. This can make the recessed portion of the roller 7 contact the upper surface of the top plate 11 or the lower surface of the goods when it rotates above the top plate 11 or below the goods. In this way, the goods can be transported in an alternating manner between the arc blocks 9 and the roller 7, which has a good protective effect on the arc blocks 9 and also reduces the burden of the rotation of the roller 7.

[0034] Reference Figure 7The anti-compression block 22 includes a first metal plate 23 fixed on the support frame 21, a spring layer 24 is fixed on the upper surface of the first metal plate 23, a second metal plate 25 is fixed on the upper end of the spring layer 24, and a rubber layer 26 is fixed on the upper surface of the second metal plate 25. Through the setting of the structural anti-compression block 22, it has good compression resistance. In order to make the transportation of goods smoother, another layer of metal plate can be fixed on the upper surface of the rubber layer 26, and the upper surface of the metal plate is set to be smooth.

[0035] Reference Figure 8 The lifting mechanism 3 includes a first motor 27 fixed at the middle position of the top of the support frame 1, a first bevel gear is connected to the rotating shaft of the first motor 27, the first bevel gear is meshed with the second bevel gear, a first transmission shaft 28 is fixed through the center position of the second bevel gear, third bevel gears are fixed at both ends of the first transmission shaft 28, the third bevel gear is meshed with the fourth bevel gear, a second transmission shaft 29 is fixed through the center position of the fourth bevel gear, a fifth bevel gear is fixed at both ends of the second transmission shaft 29, the fifth bevel gear is meshed with the sixth bevel gear, the upper end of the screw rod 30 is fixed through the center position of the sixth bevel gear, the lower end of the screw rod 30 is rotatably connected to the bottom of the support frame 1, and a nut seat 31 matching it is provided on the screw rod 30, and the nut seat 31 A lifting plate 32 is fixed on the top, and the lifting plate 32 is fixed at the bottom of the transmission frame 4. The specific working principle of the lifting mechanism 3 is as follows: when the goods need to be lifted, the first motor 27 rotates to drive the first bevel gear to rotate, and then drives the second bevel gear to rotate, and then drives the first transmission shaft 28 to rotate, and then drives the third bevel gear to rotate, and then drives the fourth bevel gear to rotate, and then drives the second transmission shaft 29 to rotate, and then drives the fifth bevel gear to rotate, and then drives the sixth bevel gear to rotate, and then drives the screw rod 30 to rotate, and then drives the nut seat 31 to run upward along the screw rod 30, and then drives the lifting plate 32 to rise, and then drives the transmission frame 4 to rise as a whole, and finally drives the goods on the transmission frame 4 to rise to the required shelf level. There are two lifting plates 4, each lifting plate 4 spans all the support plates 5, and is fixedly connected to the bottom surface of the support plate 5, and the four ends of the two lifting plates 4 are respectively fixed on the nut seats 31 close to them, so that the lifting is more stable.

[0036] Reference Figure 8 A first protective box 33 is provided outside the first bevel gear and the second bevel gear, a second protective box 34 is provided outside the third bevel gear and the fourth bevel gear, and a third protective box 35 is provided outside the fifth bevel gear and the sixth bevel gear. The first protective box 33, the second protective box 34 and the third protective box 35 are all fixed on the top of the support frame 1. The first bevel gear, the second bevel gear, the third bevel gear, the fourth bevel gear, the fifth bevel gear and the sixth bevel gear are well protected by the arrangement of the first protective box 33, the second protective box 34 and the third protective box 35.

[0037] Reference Figure 8-9 The walking mechanism 2 includes a second motor 36 fixed to the bottom of the support frame 1, a seventh bevel gear is connected to the rotating shaft of the second motor 36, the seventh bevel gear is meshed with the eighth bevel gear, a fourth protection box 37 is provided outside the seventh bevel gear and the eighth bevel gear, a third transmission shaft 38 is fixed through the center position of the eighth bevel gear, and both ends of the third transmission shaft 38 are fixed with active walking wheels 39, and two driven walking wheels 40 are also provided on the support frame 1, wherein the specific working principle of the walking mechanism 2 is as follows: when it is necessary to transport goods, the second motor 36 is started, driving the seventh bevel gear to rotate, and then driving the eighth bevel gear to rotate, and then driving the third transmission shaft 38 to rotate, and then driving the active walking wheel 39 to rotate, wherein the two active walking wheels 39 are provided with a walking track matching them below, and the rotation of the two active walking wheels 39 on the walking track will drive the two driven walking wheels 40 to also walk along the walking track.

[0038] Reference Figure 8-9 The roller driving mechanism 8 includes a driven gear 41 arranged at one end of the roller 7, and a transmission chain 42 is connected between adjacent driven gears 41, wherein a driving gear 43 is connected to one of the transmission chains 42, and the driving gear 43 is fixed on the rotating shaft of the third motor 44, and the third motor 44 is fixed on the motor support plate 45, and the motor support plate 45 is fixed on the bottom of the support plate 5. When it is necessary to transport the goods on the roller 7, the third motor 44 is started, driving the driving gear 43 to rotate, and driving the driven gear 41 to rotate through the transmission chain 42, thereby driving all the rollers 7 between the two support plates 5 to rotate synchronously, thereby realizing the transmission of the goods.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting heavy RGV, characterized in that: The invention comprises a support frame (1), wherein a walking mechanism (2) and a lifting mechanism (3) are provided on the support frame (1), wherein the lifting mechanism (3) is connected to a transmission frame (4), wherein the transmission frame (4) comprises a plurality of support plates (5), wherein both ends of the plurality of support plates (5) are connected to each other via a connecting plate (6), wherein a plurality of rollers (7) are rotatably connected between adjacent support plates (5), wherein a roller driving mechanism (8) is provided on the plurality of rollers (7), wherein a plurality of arc blocks (9) are equidistantly fixed to the outer surface of the roller (7), and an elastic supporting mechanism (10) is provided below the roller (7).

2. A lifting heavy-duty RGV according to claim 1, characterized in that: The elastic support mechanism (10) comprises a top plate (11) arranged below the roller (7), the upper ends of the inclined plates (12) are hinged on both sides of the top plate (11), the lower ends of the inclined plates (12) are slidably connected to a fixed plate (13), the fixed plate (13) is connected between two adjacent support plates (5), and a plurality of springs (14) are connected between the fixed plate (13) and the top plate (11).

3. A lifting heavy-duty RGV according to claim 2, characterized in that: A sliding block (15) is fixed on the bottom surface of the inclined plate (12), and a sliding groove (16) matching the sliding block (15) is provided on the fixed plate (13).

4. A lifting heavy-duty RGV according to claim 1, characterized in that: Three arc-shaped blocks (9) are evenly distributed on the outer surface of the roller (7).

5. A lifting heavy-duty RGV according to claim 3, characterized in that: A pressure-resistant mechanism (17) is provided in the slide groove (16), and the pressure-resistant mechanism (17) comprises a plurality of sliding plates (18) slidably connected to the slide groove (16), the sliding plate (18) closest to the inclined plate (12) is fixedly connected to the inclined plate (12), a plurality of telescopic diamond frames (19) are hingedly connected between adjacent sliding plates (18), a support frame (21) is fixed on the front and rear end surfaces of the hinge shaft (20) at the top end of the telescopic diamond frame (19), and a pressure-resistant block (22) is fixed on the top surface of the support frame (21).

6. A lifting heavy-duty RGV according to claim 5, characterized in that: The anti-compression block (22) comprises a first metal plate (23) fixed on the support frame (21), a spring layer (24) is fixed on the upper surface of the first metal plate (23), a second metal plate (25) is fixed on the upper end of the spring layer (24), and a rubber layer (26) is fixed on the upper surface of the second metal plate (25).

7. A lifting heavy-duty RGV according to claim 1, characterized in that: The lifting mechanism (3) comprises a first motor (27) fixed at the middle position of the top of the support frame (1); a first bevel gear is connected to the rotating shaft of the first motor (27); the first bevel gear is meshed with a second bevel gear; a first transmission shaft (28) is fixed through the center of the second bevel gear; a third bevel gear is fixed to both ends of the first transmission shaft (28); a fourth bevel gear is meshed with the third bevel gear; a second transmission shaft (29) is fixed through the center of the fourth bevel gear; a fifth bevel gear is fixed to both ends of the second transmission shaft (29); the fifth bevel gear is meshed with a sixth bevel gear; an upper end of a screw rod (30) is fixed through the center of the sixth bevel gear; the lower end of the screw rod (30) is rotatably connected to the bottom of the support frame (1); a nut seat (31) matching the screw rod (30) is provided on the screw rod (30); a lifting plate (32) is fixed to the nut seat (31); and the lifting plate (32) is fixed to the bottom of the transmission frame (4).

8. A lifting heavy-duty RGV according to claim 7, characterized in that: A first protection box (33) is provided outside the first bevel gear and the second bevel gear, a second protection box (34) is provided outside the third bevel gear and the fourth bevel gear, and a third protection box (35) is provided outside the fifth bevel gear and the sixth bevel gear. The first protection box (33), the second protection box (34) and the third protection box (35) are all fixed on the top of the support frame (1).

9. A lifting heavy-duty RGV according to claim 1, characterized in that: The walking mechanism (2) comprises a second motor (36) fixed to the bottom of the support frame (1); a seventh bevel gear is connected to the rotating shaft of the second motor (36); the seventh bevel gear is meshed with an eighth bevel gear; a fourth protection box (37) is provided outside the seventh bevel gear and the eighth bevel gear; a third transmission shaft (38) is fixedly passed through the center of the eighth bevel gear; active walking wheels (39) are fixed to both ends of the third transmission shaft (38); and two driven walking wheels (40) are also provided on the support frame (1).

10. A lifting heavy-duty RGV according to claim 1, characterized in that: The roller driving mechanism (8) comprises a driven gear (41) arranged at one end of the roller (7), a transmission chain (42) is connected between adjacent driven gears (41), one of the transmission chains (42) is connected to a driving gear (43), the driving gear (43) is fixed on the rotating shaft of a third motor (44), the third motor (44) is fixed on a motor support plate (45), and the motor support plate (45) is fixed on the bottom of the support plate (5).

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