Multi-directional up-and-down feeding type mobile lifting transfer vehicle

Abstract

The present application relates to the technical field of transfer car, and discloses a multi-directional up-down feeding type mobile lifting transfer car, which comprises a car body, wheels arranged at the bottom of the car body, and a driving mechanism for realizing free rotation of the bearing seat, and can be flexibly adapted to multi-station and multi-angle up-down feeding, thereby significantly improving the operation flexibility; the movable seat is reliably locked by a fixing mechanism and can be flexibly adjusted in position, thereby being adapted to different material bearing; the air suction mechanism and the suction cup are matched to form negative pressure adsorption, thereby double-protecting the material transfer stability; the linkage mechanism is used to realize automatic linkage of lifting and adsorption, thereby not needing additional power, and the structure is simple, energy-saving and efficient; the liftable protective frame is matched to form peripheral protection, thereby greatly reducing the risk of deviation and falling, improving the safety and universality, and being adapted to multi-scene material transfer; and the problems of traditional transfer cars, such as inability to adjust in multiple directions, easy material slipping, poor operation flexibility and low transfer safety, are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of shuttle vehicle technology, specifically to a multi-directional loading and unloading type mobile lifting shuttle vehicle. Background Technology

[0002] In modern industrial production, intelligent warehousing and logistics, metallurgical manufacturing, building material handling, and kiln equipment, material transfer is a crucial link connecting various production processes and ensuring production continuity. Shuttle cars, as a type of material transfer equipment, are widely used for connecting and transferring materials between different workstations and tracks. However, existing shuttle cars still have certain shortcomings, such as:

[0003] The "A Conveniently Adjustable Bidirectional Walking Shuttle Vehicle" with application number CN202422969000.4 is not equipped with a rotatable and adjustable load-bearing mechanism. It cannot flexibly adjust the material loading and unloading according to the layout of the workstation or the position of the loading and unloading equipment. It can only load and unload in a fixed direction, which makes it difficult to adapt to the loading and unloading needs of multiple workstations, multiple angles and multiple directions, and seriously limits the applicable scenarios and operational flexibility of the equipment.

[0004] At the same time, the lack of structures to improve material stability and reliance on simple planar support can easily lead to safety hazards such as deviation, slippage, or even detachment during material transfer. This not only reduces the stability and safety of material transfer but also causes material collision damage and equipment downtime, directly affecting overall transfer efficiency and production continuity.

[0005] In view of this, and in response to the above problems, we conducted in-depth research and proposed a multi-directional loading and unloading mobile lifting shuttle vehicle to solve these problems. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-directional loading and unloading mobile lifting shuttle vehicle to solve the problems mentioned in the background art, such as the inability of existing shuttle vehicles to rotate and adjust in multiple directions for multi-directional loading and unloading, and the lack of structures to improve material stability, resulting in poor transfer stability and safety, and insufficient operational flexibility.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-up and down mobile lifting shuttle vehicle, comprising a vehicle body and wheels disposed at its bottom;

[0008] An electric cylinder is fixedly installed on the inner bottom surface of the vehicle body, and a lifting plate is fixedly installed on the output end of the electric cylinder. A rotating column is longitudinally arranged through the center of the lifting plate via a bearing, and a bearing seat is fixedly installed on the top surface of the rotating column. The bottom surface of the bearing seat is rotatably connected to the top surface of the lifting plate. A through groove is symmetrically opened in pairs longitudinally on the bearing seat, and a ring seat is fixedly installed on the inner wall of the through groove. A movable seat is movably arranged on the top of the ring seat, and a suction cup is embedded and fixedly installed on the top surface of the movable seat.

[0009] The bottom surface of the lifting plate is provided with a drive mechanism for rotating the rotating column, the movable seat is provided with a fixing mechanism for fixing it, and the inner bottom surface of the vehicle body is provided with a suction mechanism connected to the suction cup, and the suction mechanism is connected to the lifting plate through a linkage mechanism.

[0010] The above technical solution facilitates the integrated control of lifting, rotating and material adsorption and fixation of the bearing seat, meets the needs of multi-directional loading and unloading, and improves the flexibility of transportation.

[0011] As a preferred embodiment of the present invention, electric push rods are fixedly installed at the lower ends of the front and rear side walls of the vehicle body, and a protective frame is fixedly installed on the top surface of the electric push rods, the protective frame being vertically slidably fitted onto the outside of the vehicle body.

[0012] The above technical solution facilitates the formation of a protective enclosure through the lifting protective frame, preventing materials from shifting, sliding, or falling during transportation, thereby improving operational safety.

[0013] As a preferred embodiment of the present invention, the driving mechanism includes a motor fixedly installed on the bottom surface of the lifting plate, and the shaft end of the motor is connected to a rotating shaft by a key. The end of the rotating shaft is fixedly connected to a first bevel gear set, and the first bevel gear set is fixedly installed on the surface of the rotating column.

[0014] The above technical solution facilitates stable rotation of the bearing seat, enables multi-angle and multi-directional positioning, and adapts to different loading and unloading postures at different workstations.

[0015] As a preferred embodiment of the present invention, the fixing mechanism includes a threaded tube installed through a bearing at the center of the inner bottom surface of the movable seat, and a movable plate sleeved on the outer side of the threaded tube. The threaded tube is threadedly connected to the movable plate, and slide rods are symmetrically arranged at the bottom of the movable plate. The slide rods slide vertically through the bottom of the movable seat, and a circular plate is fixedly installed on the bottom surface of the slide rod. The circular plate is located below the annular seat and inside the through groove. A wear-resistant and anti-slip pad is fixedly installed on the top surface of the circular plate.

[0016] The above technical solution makes it easy to securely lock the movable seat onto the bearing seat, ensuring the stability of the bearing foundation and preventing the material from shifting during bearing.

[0017] As a preferred embodiment of the present invention, the fixing mechanism further includes a worm gear arranged laterally inside the movable seat, with both ends of the worm gear connected to the inner walls of both sides of the movable seat via bearings, and the worm gear meshing with a worm wheel fixedly installed on the surface of the threaded tube. A second bevel gear set is fixedly installed on the surface of the worm gear, and the second bevel gear set is fixedly connected to the bottom end of the rotating rod. The rotating rod passes through a bearing into a groove opened at the top of the movable seat, and a knob is coaxially fixedly installed at the top end of the rotating rod, with the knob located inside the groove.

[0018] The above technical solution allows for convenient operation of the locking structure via a knob, making operation effortless, self-locking reliable, and preventing loosening during use.

[0019] As a preferred embodiment of the present invention, the suction mechanism includes a cylinder fixedly installed on the bottom surface of the vehicle body, and a piston adapted to the cylinder is provided inside the cylinder. A straight rod is fixedly installed laterally on the left end face of the piston, and a movable plate is fixedly connected to the left end of the straight rod. The bottom surface of the movable plate is laterally slidably connected to the inner bottom surface of the vehicle body. The right side wall of the cylinder is fixedly connected to one end of a telescopic hose, and the other end of the telescopic hose is fixedly connected to a through pipe. The through pipe is fixedly penetrated through the center of the rotating column longitudinally and extends to the interior of the support seat. Four branch pipes are fixedly connected at equal angles at the upper end of the through pipe, and the branch pipes are fixedly extended through the interior of the support seat to the through groove. The end of the branch pipe located in the through groove is connected to a connecting pipe through a spiral hose. The connecting pipe passes through the circular plate, the bottom of the movable seat, and the threaded pipe in sequence. The connecting pipe is vertically slidably connected to the circular plate, and is fixedly connected to the movable seat. The connecting pipe is rotatably connected to the threaded pipe. The top end of the connecting pipe is fixedly connected to the suction cup.

[0020] The above technical solution facilitates the formation of a stable negative pressure to adsorb materials, adapts to rotation and lifting movements, and ensures reliable adsorption throughout the entire process.

[0021] As a preferred technical solution of the present invention, the linkage mechanism includes a lead screw mounted on the inner wall of the left side of the vehicle body via a bearing, and a transmission gear is fixedly mounted on the surface of the lead screw. The transmission gear periodically meshes with a transmission rack fixed on the bottom surface of the lifting plate. The lead screw passes through the moving plate laterally and is threadedly connected to the moving plate. The right end of the lead screw is connected to a fixed block bearing fixedly mounted on the top surface of the cylinder.

[0022] The above technical solution facilitates the conversion of lifting motion into suction power, achieving automatic linkage between lifting and adsorption without the need for additional power, resulting in a simple and efficient structure.

[0023] As a preferred embodiment of the present invention, the top surface of the movable seat is coplanar with the top surface of the supporting seat.

[0024] The above technical solution ensures that the bearing surface is flat and continuous, the material is placed stably, and collisions and tilting are avoided.

[0025] As a preferred embodiment of the present invention, the inner diameter of the annular seat is smaller than the diameter of the movable seat and the circular plate.

[0026] The above technical solution facilitates effective support and reliable limiting of the movable seat, ensures that the fixed mechanism can be pressed and locked, and improves structural stability.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the multi-up and down type mobile lifting shuttle vehicle; 1. The drive mechanism consisting of a motor, a first bevel gear set and a rotating column can drive the bearing seat to rotate freely. It can flexibly adjust the angle and direction of material loading and unloading according to the layout of the workstation, the position of the loading and unloading equipment and the needs of multi-workstation cross-operation. It completely solves the problem that the traditional shuttle car can only load and unload materials in a fixed direction and has poor adaptability. It greatly expands the applicable scenarios of the equipment and meets the needs of efficient operation in multiple workstations, multiple angles and multiple directions. 2. The movable seat is firmly locked onto the bearing seat by a fixing mechanism composed of worm gear, threaded tube, movable plate and circular plate, ensuring the stability of the bearing foundation. At the same time, the movable seat can be flexibly adjusted in the through groove of the bearing seat to adapt to the bearing requirements of materials of different sizes and shapes. 3. The suction mechanism is formed by the cylinder, piston, telescopic hose and through pipe. Together with the suction cup, it forms a stable negative pressure, which firmly adsorbs the material on the bearing surface, ensuring that the material does not shift, slip, or fall off during the transfer process. This effectively avoids material collision damage and equipment failure, and ensures production continuity. 4. The lifting action of the lifting plate is automatically converted into the negative pressure power of the suction mechanism by the linkage mechanism composed of the transmission rack, transmission gear and lead screw, so as to realize the synchronous linkage of lifting and suction actions without the need for an additional independent power source. The overall structure design is simple and reasonable, which reduces the equipment manufacturing cost and energy consumption, simplifies the operation process, and improves the reliability of equipment operation and the convenience of maintenance. 5. The outer side of the vehicle is equipped with a liftable protective frame driven by an electric push rod. During transportation, the protective frame automatically rises to form a full-enclosed protective barrier, effectively blocking the risk of material shifting, tipping, and falling due to factors such as vehicle start-stop and track bumps. This further improves the safety of material transportation from the outside, reduces the incidence of safety accidents, and ensures the safety of personnel and equipment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the electric push rod and protective frame structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the lifting plate of the present invention with the vehicle body and the support seat;

[0031] Figure 4 This is a schematic diagram of the electric cylinder and lifting plate structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the connection structure between the through groove and the annular seat of the present invention;

[0033] Figure 6This is a schematic diagram of the connection structure between the rotating column and the bearing seat of the present invention;

[0034] Figure 7 This is a schematic diagram of the cross-sectional connection structure between the annular seat and the movable seat of the present invention;

[0035] Figure 8 This is a schematic diagram of the worm gear and worm wheel connection structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the cross-sectional structure of the cylindrical body of the present invention;

[0037] Figure 10 This is a schematic diagram of the connection structure between the branch pipe and the through and spiral hose of the present invention.

[0038] In the diagram: 1. Vehicle body; 2. Wheel; 3. Electric cylinder; 4. Lifting plate; 5. Rotating column; 6. Bearing seat; 7. Through groove; 8. Circular seat; 9. Movable seat; 10. Suction cup; 11. Electric push rod; 12. Protective frame; 13. Motor; 14. Rotating shaft; 15. First bevel gear set; 16. Threaded pipe; 17. Movable plate; 18. Slide rod; 19. Circular plate; 20. Wear-resistant anti-slip pad; 21. Worm gear; 22. Worm wheel; 23. Second bevel gear set; 24. Rotating rod; 25. Knob; 26. Cylinder; 27. Piston; 28. Straight rod; 29. ​​Moving plate; 30. Telescopic hose; 31. Through pipe; 32. Branch pipe; 33. Spiral hose; 34. Connecting pipe; 35. Lead screw; 36. Transmission gear; 37. Transmission rack; 38. Fixed block. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0040] Example 1

[0041] Please see Figure 1 - Figure 10The technical solution of this invention is as follows: A multi-directional loading and unloading mobile lifting shuttle vehicle includes a vehicle body 1 and wheels 2 installed at its bottom. A power component for rotating the wheels 2 is installed at the bottom of the vehicle body 1. The wheels 2 are used to move on the track. A PLC controller for controlling various electrical devices is provided on the vehicle body 1, and it can be wirelessly connected to external devices for remote operation. An energy storage component for power supply is also provided on the vehicle body 1. An electric cylinder 3 is fixedly installed on the inner bottom surface of the vehicle body 1. Four electric cylinders 3 are arranged symmetrically in pairs. A lifting plate 4 is fixedly installed at the output end of the electric cylinder 3. A rotating column 5 is longitudinally arranged through the center of the lifting plate 4 through a bearing. A bearing seat 6 is fixedly installed on the top surface of the rotating column 5. The bottom surface of the bearing seat 6 is rotatably connected to the top surface of the lifting plate 4. A through groove 7 is longitudinally opened symmetrically in pairs on the bearing seat 6. A ring seat 8 is fixedly installed on the inner wall of the through groove 7. A movable seat 9 is movably arranged on the top of the ring seat 8. A suction cup 10 is embedded and fixedly installed on the top surface of the movable seat 9. Electric push rods 11 are fixedly installed on the lower ends of the front and rear side walls of the vehicle body 1, and a protective frame 12 is fixedly installed on the top surface of the electric push rods 11. The protective frame 12 is vertically slidably sleeved on the outside of the vehicle body 1.

[0042] The bottom surface of the lifting plate 4 is provided with a drive mechanism for rotating the rotating column 5. The drive mechanism includes a motor 13 fixedly installed on the bottom surface of the lifting plate 4, and the shaft end of the motor 13 is connected to a rotating shaft 14 by a key. The end of the rotating shaft 14 is fixedly connected to a first bevel gear set 15, and the first bevel gear set 15 is fixedly installed on the surface of the rotating column 5.

[0043] The movable seat 9 is provided with a fixing mechanism for fixing it. The fixing mechanism includes a threaded tube 16 installed through a bearing at the center of the inner bottom surface of the movable seat 9, and a movable plate 17 is sleeved on the outer side of the threaded tube 16. The threaded tube 16 is threadedly connected to the movable plate 17. A sliding rod 18 is symmetrically arranged at the bottom of the movable plate 17. The sliding rod 18 slides vertically through the bottom of the movable seat 9. A circular plate 19 is fixedly installed on the bottom surface of the sliding rod 18. The circular plate 19 is located below the circular seat 8 and inside the through groove 7. A wear-resistant and anti-slip pad 20 is fixedly installed on the top surface of the circular plate 19.

[0044] The fixing mechanism also includes a worm 21 horizontally disposed inside the movable seat 9, with both ends of the worm 21 connected to the inner walls of both sides of the movable seat 9 via bearings. The worm 21 is meshed with a worm wheel 22 fixedly mounted on the surface of the threaded tube 16. A second bevel gear set 23 is fixedly mounted on the surface of the worm 21, and the second bevel gear set 23 is fixedly connected to the bottom end of the rotating rod 24. The rotating rod 24 passes through a bearing into a groove opened at the top of the movable seat 9, and a knob 25 is coaxially fixedly mounted at the top of the rotating rod 24. The knob 25 is located inside the groove. The top surface of the movable seat 9 is coplanar with the top surface of the bearing seat 6. The inner diameter of the ring seat 8 is smaller than the diameter of the movable seat 9 and the circular plate 19.

[0045] An air suction mechanism connected to a suction cup 10 is provided on the inner bottom surface of the vehicle body 1. The air suction mechanism is connected to the lifting plate 4 via a linkage mechanism. The air suction mechanism includes a cylinder 26 fixedly installed on the inner bottom surface of the vehicle body 1. A piston 27 adapted to the cylinder 26 is provided inside the cylinder 26. A straight rod 28 is horizontally fixedly installed on the left end face of the piston 27. A moving plate 29 is fixedly connected to the left end of the straight rod 28. The bottom surface of the moving plate 29 is horizontally slidably connected to the inner bottom surface of the vehicle body 1. The right side wall of the cylinder 26 is fixedly connected to one end of a telescopic hose 30. The other end of the telescopic hose 30 is fixedly connected to a through pipe 31. The longitudinally fixed through-rotating column 5 has a centrally located pipe 31 that extends into the interior of the bearing seat 6. The upper end of the pipe 31 is fixedly connected to four branch pipes 32 at equal angles. The branch pipes 32 extend through the interior of the bearing seat 6 into the through groove 7. One end of the branch pipe 32 located in the through groove 7 is connected to a connecting pipe 34 via a spiral flexible hose 33. The connecting pipe 34 passes through the circular plate 19, the bottom of the movable seat 9, and the threaded pipe 16 in sequence. The connecting pipe 34 is vertically slidably connected to the circular plate 19 and is fixedly connected to the movable seat 9. The connecting pipe 34 is rotatably connected to the threaded pipe 16. The top end of the connecting pipe 34 is fixedly connected to the suction cup 10.

[0046] The linkage mechanism includes a lead screw 35 mounted on the inner wall of the left side of the vehicle body 1 via a bearing, and a transmission gear 36 is fixedly mounted on the surface of the lead screw 35. The transmission gear 36 periodically meshes with a transmission rack 37 fixed on the bottom surface of the lifting plate 4. The lead screw 35 passes through the moving plate 29 laterally, and the lead screw 35 is threadedly connected to the moving plate 29. The right end of the lead screw 35 is connected to a bearing of a fixed block 38 fixedly mounted on the top surface of the cylinder 26.

[0047] Working principle: When in use, the operator first drives the wheels 2 to rotate through the power unit of the shuttle car, so that the car body 1 moves smoothly along the preset track to the designated loading position. After the car body 1 stops in place, the electric cylinder 3 on the bottom of the car body 1 is activated. The output end of the electric cylinder 3 extends upward at a uniform speed, pushing the lifting plate 4 to lift smoothly. This drives the rotating column 5 above the lifting plate 4 and the bearing seat 6 to move upward synchronously, so that the bearing seat 6 extends completely from inside the car body 1, leaving sufficient working space for subsequent material placement, angle adjustment and other loading operations, and completing the preparation work before loading.

[0048] After the material loading preparation is completed, the drive mechanism at the bottom of the lifting plate 4 is started for rotation adjustment: the motor 13 is powered on and drives the rotating shaft 14 at its shaft end to rotate synchronously. The first bevel gear set 15 at the end of the rotating shaft 14 meshes and transmits the power, converting the horizontal rotation power into the vertical rotation power, driving the rotating column 5 to rotate at a constant speed around its own axis. Since the top of the rotating column 5 is fixedly connected to the bearing seat 6, the bearing seat 6 will rotate synchronously and smoothly with the rotating column 5. The operator can flexibly adjust the rotation angle of the bearing seat 6 according to the layout of the workstation, the position of the loading and unloading equipment and the needs of multi-workstation cross-operation, so as to realize the adjustment of the loading and unloading posture of the material at multiple angles and directions, and adapt to loading and unloading operations in different directions.

[0049] After the angle adjustment is completed, according to the size, shape, and placement of the material to be transferred, move the movable seat 9 in the through groove 7 of the bearing seat 6 to a position suitable for the material. Then, rotate the knob 25 in the groove at the top of the movable seat 9. The knob 25 drives the rotating rod 24 to rotate. The second bevel gear set 23 at the bottom of the rotating rod 24 meshes and drives the worm gear 21 inside the movable seat 9 to rotate. The worm gear 21 meshes with the worm wheel 22 on the surface of the threaded tube 16, causing the threaded tube 16 to rotate around its own axis. The threaded tube 16 and the outer movable seat 9... The plate 17 forms a threaded fit. Under the action of the threaded transmission, the movable plate 17 moves upward along the threaded tube 16, which in turn drives the slide rods 18 symmetrically arranged at the bottom to slide upward synchronously. The circular plate 19 and the wear-resistant anti-slip pad 20 at the bottom of the slide rod 18 move upward accordingly until the wear-resistant anti-slip pad 20 tightly abuts against the bottom surface of the inner wall of the through groove 7 and the inner wall of the ring seat 8. The movable seat 9 is firmly locked on the bearing seat 6 by friction, preventing the movable seat 9 from shifting and ensuring that the material bearing foundation is stable and reliable. Then the material is placed steadily on the top surface of the bearing seat 6.

[0050] After the materials are placed, the electric cylinder 3 drives the lifting plate 4 to move downwards at a constant speed. During the downward movement of the lifting plate 4, the transmission rack 37 on its bottom surface moves downwards synchronously. When the transmission rack 37 meshes with the transmission gear 36 on the lead screw 35, the continuous downward movement of the lifting plate 4 will drive the transmission gear 36 to rotate through the transmission rack 37, thereby driving the lead screw 35 to rotate around its own axis. The lead screw 35 is threadedly connected to the moving plate 29. Under the action of the threaded transmission, the moving plate 29 slides smoothly to the left along the inner bottom surface of the vehicle body 1. 29. The piston 27 inside the cylinder 26 is pulled to the left by the straight rod 28, which increases the volume of the right chamber of the cylinder 26 and forms a stable negative pressure. This negative pressure is transmitted evenly to the suction cup 10 on the top surface of the movable seat 9 through the telescopic hose 30, the through pipe 31 that runs through the center of the rotating column 5, the four branch pipes 32 at the upper end of the through pipe 31, the spiral hose 33 and the connecting pipe 34, so that the suction cup 10 generates a continuous and uniform suction force, which firmly adsorbs and fixes the material on the bearing seat 6, thereby improving the stability and safety of the material transfer process.

[0051] When the material transfer begins, the electric push rods 11 on the front and rear side walls of the vehicle body 1 start simultaneously, pushing the protective frame 12 to slide vertically and smoothly upward along the outside of the vehicle body 1. After the protective frame 12 is fully raised, it forms a full-enclosed protective barrier for the carrier seat 6 and the material above it, effectively preventing the risk of the material shifting, sliding or even falling off during the transfer due to the start and stop of the vehicle body 1, track bumps and other factors, and ensuring the safety of the transfer process.

[0052] After the vehicle body 1 moves to the target unloading station via the wheels 2, the unloading process is started: the electric cylinder 3 is controlled again to drive the lifting plate 4 to move upward, so that the bearing seat 6 extends out of the vehicle body 1 again; during the upward movement of the lifting plate 4, the transmission rack 37 on its bottom surface moves upward and disengages from the transmission gear 36, the lead screw 35 stops rotating, and the moving plate 29, straight rod 28 and piston 27 return to their initial positions under the reset action, the negative pressure in the cylinder 26 automatically disappears, and the suction force of the suction cup 10 is released; at the same time, according to the actual needs of the unloading station, the drive mechanism can be restarted to drive the rotating column 5 and the bearing seat 6 to rotate, adjust the material unloading angle, realize flexible unloading in multiple directions, and complete the entire transfer operation process.

[0053] Example 2

[0054] The difference between this embodiment and Embodiment 1 is that the lead screw 35 is configured as a gradually decreasing pitch structure from right to left.

[0055] By adopting the above structural design, the lifting stroke and negative pressure intensity are linearly matched. When the piston 27 moves to the left to establish the material adsorption negative pressure, the piston 27 moves quickly to the left, and the inner volume of the cylinder 26 expands rapidly, quickly generating a basic low negative pressure, completing the pre-adsorption and positioning of the material, and avoiding slight slippage of the material in the early stage of negative pressure establishment. As the moving speed of the piston 27 slows down synchronously, the cylinder 26 slowly and continuously pumps air, and the negative pressure rises steadily to a high negative pressure state, realizing tight material adhesion and greatly improving the material adhesion firmness during the transfer process.

[0056] When the piston 27 is released from adsorption and resets to the right to release pressure, the piston 27 moves to the right at a speed that gradually increases. The negative pressure inside the cylinder 26 is released slowly and evenly, preventing the material from bouncing or shifting due to instantaneous pressure release. The material posture is stable during the feeding process, further improving the overall safety and smoothness of the transfer operation.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-level loading and unloading mobile lifting shuttle vehicle, comprising a vehicle body (1) and wheels (2) disposed at its bottom, characterized in that: An electric cylinder (3) is fixedly installed on the inner bottom surface of the vehicle body (1), and a lifting plate (4) is fixedly installed at the output end of the electric cylinder (3). A rotating column (5) is longitudinally arranged through the center of the lifting plate (4) via a bearing, and a bearing seat (6) is fixedly installed on the top surface of the rotating column (5). The bottom surface of the bearing seat (6) is rotatably connected to the top surface of the lifting plate (4). A through groove (7) is symmetrically opened longitudinally on the bearing seat (6), and a ring seat (8) is fixedly installed on the inner wall of the through groove (7). A movable seat (9) is movably arranged on the top of the ring seat (8), and a suction cup (10) is embedded and fixedly installed on the top surface of the movable seat (9). The bottom surface of the lifting plate (4) is provided with a drive mechanism for rotating the rotating column (5), the movable seat (9) is provided with a fixing mechanism for fixing it, the inner bottom surface of the vehicle body (1) is provided with a suction mechanism connected to the suction cup (10), and the suction mechanism is connected to the lifting plate (4) through a linkage mechanism.

2. The multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 1, characterized in that, Electric push rods (11) are fixedly installed on the lower ends of the front and rear side walls of the vehicle body (1), and a protective frame (12) is fixedly installed on the top surface of the electric push rods (11). The protective frame (12) is vertically slidably sleeved on the outside of the vehicle body (1).

3. The multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 1, characterized in that, The drive mechanism includes a motor (13) fixedly installed on the bottom surface of the lifting plate (4), and the shaft end of the motor (13) is connected to a rotating shaft (14) by a key. The end of the rotating shaft (14) is fixedly connected to a first bevel gear set (15), and the first bevel gear set (15) is fixedly installed on the surface of the rotating column (5).

4. The multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 1, characterized in that, The fixing mechanism includes a threaded tube (16) installed at the center of the inner bottom surface of the movable seat (9) through a bearing, and a movable plate (17) is sleeved on the outer side of the threaded tube (16). The threaded tube (16) is threadedly connected to the movable plate (17), and a sliding rod (18) is symmetrically arranged at the bottom of the movable plate (17). The sliding rod (18) slides vertically through the bottom of the movable seat (9), and a circular plate (19) is fixedly installed on the bottom surface of the sliding rod (18). The circular plate (19) is located below the circular ring seat (8) and is located inside the through groove (7). A wear-resistant and anti-slip pad (20) is fixedly installed on the top surface of the circular plate (19).

5. A multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 4, characterized in that, The fixing mechanism also includes a worm (21) arranged laterally inside the movable seat (9), and the two ends of the worm (21) are respectively connected to the inner walls of the two sides of the movable seat (9) through bearings. The worm (21) is meshed with a worm wheel (22) fixedly installed on the surface of the threaded tube (16). A second bevel gear set (23) is fixedly installed on the surface of the worm (21), and the second bevel gear set (23) is fixedly connected to the bottom end of the rotating rod (24). The rotating rod (24) passes through the bearing into the groove opened at the top of the movable seat (9), and a knob (25) is fixedly installed coaxially at the top of the rotating rod (24), and the knob (25) is located inside the groove.

6. A multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 4, characterized in that, The suction mechanism includes a cylinder (26) fixedly installed on the inner bottom surface of the vehicle body (1), and a piston (27) adapted to it is provided inside the cylinder (26). A straight rod (28) is fixedly installed laterally on the left end face of the piston (27), and a moving plate (29) is fixedly connected to the left end of the straight rod (28). The bottom surface of the moving plate (29) is laterally slidably connected to the inner bottom surface of the vehicle body (1). The right side wall of the cylinder (26) is fixedly connected to one end of the telescopic hose (30), and the other end of the telescopic hose (30) is fixedly connected to a through pipe (31). The through pipe (31) is fixedly inserted longitudinally through the center of the rotating column (5), and the through pipe (31) extends to the bearing seat (6). Inside the tube (31), the upper end of the tube (31) is fixedly connected to four branch tubes (32) at equal angles. The branch tubes (32) extend fixedly into the groove (7) through the bearing seat (6). The end of the branch tube (32) located in the groove (7) is connected to the connecting tube (34) through the spiral hose (33). The connecting tube (34) passes through the circular plate (19), the bottom of the movable seat (9) and the threaded tube (16) in sequence. The connecting tube (34) is vertically slidably connected to the circular plate (19). The connecting tube (34) is fixedly connected to the movable seat (9). The connecting tube (34) is rotatably connected to the threaded tube (16). The top end of the connecting tube (34) is fixedly connected to the suction cup (10).

7. A multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 6, characterized in that, The linkage mechanism includes a lead screw (35) mounted on the inner wall of the left side of the vehicle body (1) via a bearing, and a transmission gear (36) is fixedly mounted on the surface of the lead screw (35). The transmission gear (36) periodically meshes with a transmission rack (37) fixed on the bottom surface of the lifting plate (4). The lead screw (35) passes through the moving plate (29) laterally, and the lead screw (35) is threadedly connected to the moving plate (29). The right end of the lead screw (35) is connected to a bearing of a fixed block (38) fixedly mounted on the top surface of the cylinder (26).

8. A multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 1, characterized in that, The top surface of the movable seat (9) is coplanar with the top surface of the bearing seat (6).

9. A multi-direction loading and unloading mobile lifting shuttle vehicle according to claim 4, characterized in that, The inner diameter of the ring seat (8) is smaller than the diameter of the movable seat (9) and the circular plate (19).

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