A power control system for a vehicle-mounted loading and unloading platform for heavy-duty material transportation

Abstract

The present application relates to the technical field of transportation device control system, and particularly relates to a power control system of a loading and unloading platform for heavy load transportation, comprising: a hydraulic system, an electrical system, a loading and unloading platform, a front transition mechanism, a rolling platform and a supporting mechanism, the loading and unloading platform is connected with the hydraulic system and the electrical system at the bottom, the electrical system is electrically connected with the hydraulic system, the hydraulic system is connected with the front transition mechanism, the rolling platform and the supporting mechanism, the front transition mechanism, the rolling platform and the supporting mechanism are all connected with the loading and unloading platform, the setting of the electrical system increases the monitoring ability of the device for the power system and the connected load components, and the fault can be processed in the first time when the fault occurs, so that the fault is prevented from being enlarged.

Description

Technical Field

[0001] This invention relates to the field of transportation device control system technology, and in particular to a power control system for a vehicle-mounted loading and unloading platform for heavy-duty material transportation. Background Technology

[0002] The vehicle hydraulic system of a loading and unloading platform is a system that uses hydraulic principles to transmit and control force, and is widely used in various functions of automobiles. It mainly includes components such as hydraulic pumps, hydraulic oil, hydraulic cylinders, and valves, enabling it to efficiently complete different actions. Its main components are: Hydraulic pump: converts mechanical energy into hydraulic energy, providing the flow of hydraulic oil. Hydraulic oil: as the transmission medium, hydraulic oil flows under high pressure and transmits force. Hydraulic cylinder: converts hydraulic energy into mechanical energy, driving pistons or other components to complete the movement. Valves: control the flow direction, flow rate, and pressure of the hydraulic oil, ensuring the normal operation of the system.

[0003] However, existing technologies still have shortcomings. For example, a vehicle loading and unloading platform with patent number CN201120419479.4 includes columns, cargo plates, lifting sliders, fixing devices, power boxes, and lifting devices. Guide grooves are provided on the columns, and two columns are arranged vertically with their guide grooves facing each other through the fixing devices. The lifting sliders are placed in the guide grooves of the columns, and the cargo plates are connected to the lifting sliders by snap-fit. The lifting devices are provided on the columns and are connected to the power box. The lifting sliders are connected to the lifting devices, and the power line of the power box is connected to the power supply of the transport vehicle. This device has no electrical system and cannot monitor the working status of the related power equipment. After a failure occurs, it cannot be dealt with in a timely manner, which leads to the aggravation of the failure. Summary of the Invention

[0004] This invention provides a power control system and method for a vehicle-mounted loading and unloading platform for heavy-duty material transportation, in order to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a power control system for a vehicle-mounted loading and unloading platform for heavy-duty material transportation, comprising: a hydraulic system, an electrical system, a vehicle-mounted loading and unloading platform, a front transition mechanism, a rolling platform, and a support mechanism. The bottom of the vehicle-mounted loading and unloading platform is connected to the hydraulic system and the electrical system, which are electrically connected to the hydraulic system. The hydraulic system is connected to the front transition mechanism, the rolling platform, and the support mechanism. The front transition mechanism, the rolling platform, and the support mechanism are all connected to the vehicle-mounted loading and unloading platform.

[0006] Preferably, the rolling platform includes: a platform, a lifting mechanism, a hydraulic motor, and a conveying mechanism. The lifting mechanism is connected to the loading and unloading platform, the platform is connected to the lifting mechanism, the hydraulic motor is connected to the platform, the output end of the hydraulic motor is connected to the conveying mechanism, and the conveying mechanism is connected to the platform.

[0007] Preferably, the conveying mechanism includes a sprocket and a chain. The output end of the hydraulic motor is connected to the sprocket, which is rotatably connected to the platform. The sprocket is connected to another sprocket via the chain, and the other sprocket is rotatably connected to the platform. The chain is arranged around the platform, and the hydraulic motor is connected to the hydraulic system via a pipe.

[0008] Preferably, the bottom of the vehicle loading and unloading platform is rotatably connected to a wheel assembly mechanism, and the support mechanism is specifically a hydraulic outrigger. Each end of the vehicle loading and unloading platform is connected to a pair of hydraulic outriggers, and the hydraulic outriggers are connected to the hydraulic system through a second pipe.

[0009] Preferably, the lifting mechanism includes: a lifting hydraulic cylinder, guide rails, a lifting bracket, a second sprocket, and a lifting chain. A pair of guide rails are mounted on each side of the vehicle loading / unloading platform. The guide rails are slidably connected to both sides of the lifting bracket. A second sprocket is rotatably connected to the bottom of the lifting bracket, and a lifting chain is connected to the second sprocket. One end of the lifting chain is connected to the vehicle loading / unloading platform, and the other end is connected to the platform. The second guide rail on the side of the platform is slidably connected to the guide rails. A lifting hydraulic cylinder is mounted on the vehicle loading / unloading platform. The output end of the lifting hydraulic cylinder is connected to the lifting bracket, and the lifting hydraulic cylinder is connected to the hydraulic system via a third pipe.

[0010] Preferably, the front transition mechanism includes: a front transition plate, a scissor mechanism, and a second lifting hydraulic cylinder. The scissor mechanism is connected to the loading and unloading platform, the top of the scissor mechanism is connected to the front transition plate, the bottom of the front transition plate is hinged to the end of the second lifting hydraulic cylinder, the other end of the second lifting hydraulic cylinder is hinged to the loading and unloading platform, and the second lifting hydraulic cylinder is connected to the hydraulic system through a pipe.

[0011] Preferably, the hydraulic system includes a hydraulic pump and a hydraulic tank. The hydraulic pump and the hydraulic tank are installed at the bottom of the vehicle loading and unloading platform. One side of the hydraulic pump is connected to the hydraulic tank, and the other side of the hydraulic pump is connected to pipes one, three, and four. The hydraulic tank is filled with hydraulic oil. The hydraulic pump is electrically connected to the electrical control system. An air-cooling mechanism is connected to the hydraulic tank and is electrically connected to the electrical control system.

[0012] Preferably, the hydraulic oil is PAG hydraulic oil.

[0013] Preferably, the electrical control system includes a PLC controller and a human-machine interface panel. The PLC controller and the human-machine interface panel are installed at the bottom of the vehicle loading and unloading platform. The PLC controller is electrically connected to the human-machine interface panel, electrically connected to the battery on the vehicle, electrically connected to the hydraulic pump, and electrically connected to the air-cooling mechanism.

[0014] Preferably, it also includes: pressure sensors, wherein pressure sensors are installed inside the pipes, pressure sensor 2 is installed inside pipe 2, pressure sensor 3 is installed inside pipe 3, and pressure sensor 4 is installed inside pipe 4. Pressure sensors 2, 3, and 4 are all electrically connected to the PLC controller. Solenoid valves 2, 3, and 4 are respectively installed inside pipes 2, 3, and 4. Solenoid valves 2, 3, and 4 are all electrically connected to the PLC controller.

[0015] The beneficial effects of this invention are as follows:

[0016] The electrical system setup increases the device's ability to monitor the power system and its connected load components, enabling immediate handling of faults and preventing them from escalating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the platform structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the lifting mechanism structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the front transition mechanism of the present invention.

[0021] The components include: 1. Loading and unloading platform; 2. Front transition mechanism; 3. Rolling platform; 4. Platform; 5. Lifting mechanism; 6. Conveying mechanism; 7. Sprocket; 8. Chain; 9. Wheel assembly mechanism; 10. Hydraulic outrigger; 11. Lifting hydraulic cylinder; 12. Guide rail; 13. Lifting bracket; 14. Second sprocket; 15. Lifting chain; 16. Front transition plate; 17. Scissor fork mechanism; 18. Second lifting hydraulic cylinder; 19. Support mechanism; and 20. Hydraulic motor. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example 1: Reference Figures 1-4A power control system for a vehicle-mounted loading and unloading platform for heavy-duty material transportation includes: a hydraulic system, an electrical system, a vehicle-mounted loading and unloading platform 1, a front transition mechanism 2, a rolling platform 3, and a support mechanism 19. The bottom of the vehicle-mounted loading and unloading platform 1 is connected to the hydraulic system and the electrical system. The electrical system is electrically connected to the hydraulic system. The hydraulic system is connected to the front transition mechanism 2, the rolling platform 3, and the support mechanism 19. The front transition mechanism 2, the rolling platform 3, and the support mechanism 19 are all connected to the vehicle-mounted loading and unloading platform 1.

[0024] The principles and beneficial effects of the above scheme are as follows:

[0025] The loading platform 1 is hinged to the rear of the vehicle to move while the vehicle is in motion. The loading platform 1 uses a support mechanism 19 to position the vehicle and improve stability during loading. The loading platform 1 can control the hydraulic system via an electrical system to move the rolling platform 3. After adjusting the height of the rolling platform 3 to match the ground level, materials on the ground can be transferred onto the rolling platform 3. The electrical system then adjusts the height of the rolling platform 3 again to match the height of the loading platform 1. Depending on the amount of transported materials, the operator can choose to place the materials directly on the platform or transfer them to the front transition mechanism 2. Further, depending on the amount of transported materials, the operator can choose to fix the materials to the front transition mechanism 2. On the transfer mechanism 2, or by adjusting the height of the transfer mechanism 2 via the electrical system controlling the hydraulic system, the operator can transfer materials to the vehicle. After loading all the materials, the support mechanism 19 is reset via the electrical system to allow it to move with the loading and unloading platform 1. By setting the electrical system to control the hydraulic system, the difficulty of transferring materials is reduced. During the loading process, multiple mechanisms need to be adjusted. The electrical system realizes the control of the power of the entire device, which greatly improves the automation effect of the device and effectively reduces the labor intensity of the operator. Furthermore, the setting of the electrical system increases the device's monitoring capability of the power system and its connected load components. When a fault occurs, it can be dealt with immediately to prevent the fault from escalating.

[0026] Example 2: Reference Figures 1-4 The rolling platform 3 includes: a platform 4, a lifting mechanism 5, a hydraulic motor 20, and a conveying mechanism 6. The lifting mechanism 5 is connected to the vehicle loading and unloading platform 1, the platform 4 is connected to the lifting mechanism 5, the hydraulic motor 20 is connected to the platform 4, the output end of the hydraulic motor 20 is connected to the conveying mechanism 6, and the conveying mechanism 6 is connected to the platform 4.

[0027] The principles and beneficial effects of the above scheme are as follows:

[0028] After platform 4 is moved to the ground by lifting mechanism 5, the electrical system controls the hydraulic system to work, that is, to drive hydraulic motor 20. Hydraulic motor 20 drives conveying mechanism 6 to move materials on the ground to platform 4, which reduces the labor intensity of the operator, makes full use of the power of the hydraulic system in the device, achieves the purpose of efficient operation of the device, and improves the practicality of the device.

[0029] Example 3: Reference Figures 1-4 The conveying mechanism 6 includes a sprocket 7 and a chain 8. The output end of the hydraulic motor 20 is connected to the sprocket 7. The sprocket 7 is rotatably connected to the platform 4. The sprocket 7 is connected to another sprocket 7 via the chain 8. The other sprocket 7 is rotatably connected to the platform 4. The chain 8 is arranged around the platform 4. The hydraulic motor 20 is connected to the hydraulic system via a pipe.

[0030] The principles and beneficial effects of the above scheme are as follows:

[0031] When the hydraulic motor 20 rotates, the hydraulic system controls it through pipelines. After the hydraulic motor 20 starts working, its output end drives the sprocket 7 to rotate. Since the two sprockets 7 are connected by a chain 8, and the chain 8 is arranged around the platform 4, when the chain 8 is working, the top of the chain 8 is positioned above the platform 4. This facilitates the transportation of materials. In actual production, the number of chains 8 can be set to one or more, and the number can be added or reduced based on the different load-bearing weight or size parameters of the platform 4. The number of sprockets 7 connected to the same chain 8 can also be set based on the above parameters, further increasing the practicality of the device itself. The chain 8 itself has high strength, high durability, adaptability to harsh environments, flexible load-bearing methods, and low maintenance costs. Therefore, when the chain 8 is used in conjunction with the platform 4 to carry materials, the probability of damage to the chain 8 itself is extremely low. Even if damage occurs, it can be repaired in various working conditions. In all situations, repairs or replacements can be made quickly. The chain 8 itself has multiple links connected by pins, resulting in numerous indentations and protrusions in the straight line. This further indicates that the mechanism provides significant friction to the bottom of the material. Therefore, during transport, the chain 8 on platform 4 provides substantial friction to the bottom of the material, preventing it from shifting forward, backward, or sideways during transport. This significantly reduces the difficulty of securing the material on platform 4. Because the chain 8 is arranged around platform 4, there is a gap between its upper side and the top surface of platform 4. After loading, the area where the chain 8 is not connected to the sprocket 7 can be visually inspected to see if it is collapsing downwards, thus determining if the material is internally damaged. During loading, the gap increases the distance between the bottom of the material and the ground, preventing damage to the bottom of materials without waterproofing measures when the ground is wet.

[0032] Example 4: Reference Figures 1-4 The bottom of the vehicle loading and unloading platform 1 is rotatably connected to a wheel assembly mechanism 9, and the support mechanism 19 is specifically a hydraulic outrigger 10. Each end of the vehicle loading and unloading platform 1 is connected to a pair of hydraulic outriggers 10, and the hydraulic outriggers 10 are connected to the hydraulic system through a pipe.

[0033] The principles and beneficial effects of the above scheme are as follows:

[0034] The wheel assembly mechanism of the rotatable loading and unloading platform 1 increases the distance between the loading and unloading platform 1 and the ground, preventing the hydraulic or electrical systems from being impacted during travel. Before the platform 4 moves downward, the hydraulic system controls the hydraulic outriggers 10 to move downward through the second pipeline, thereby fixing the loading and unloading platform 1. This increases the stability of the loading and unloading platform 1 during the loading and unloading process and can also adjust the loading and unloading platform 1 to a horizontal state to prevent the equipment from overturning during the loading and unloading process.

[0035] Example 5: Reference Figures 1-4 The lifting mechanism 5 includes: a lifting hydraulic cylinder 11, a guide rail 12, a lifting bracket 13, a second sprocket 14, and a lifting chain 15. Each side of the vehicle loading and unloading platform 1 is equipped with a pair of guide rails 12, which are slidably connected to the sides of the lifting bracket 13. The bottom of the lifting bracket 13 is rotatably connected to the second sprocket 14, and the lifting chain 15 is connected to the second sprocket 14. One end of the lifting chain 15 is connected to the vehicle loading and unloading platform 1, and the other end of the lifting chain 15 is connected to the platform 4. The second guide rail on the side of the platform 4 is slidably connected to the guide rail 12. The vehicle loading and unloading platform 1 is equipped with a lifting hydraulic cylinder 11, the output end of which is connected to the lifting bracket 13. The lifting hydraulic cylinder 11 is connected to the hydraulic system through a third pipe.

[0036] The principles and beneficial effects of the above scheme are as follows:

[0037] The lifting of platform 4 is driven by the other end of the lifting chain 15. Since the lifting hydraulic cylinder 11 is connected to the hydraulic system through pipe three and the output end of the lifting hydraulic cylinder 11 is connected to the lifting bracket 13, the hydraulic system can control the lifting hydraulic cylinder 11 through pipe three to adjust the height of the lifting bracket 13. After the height of the lifting bracket 13 changes, the other end of the lifting chain 15 drives the platform 4 to move through the guidance of sprocket two 14. By setting the lifting hydraulic cylinder 11 to be connected to the hydraulic system through pipe three, the utilization of the internal power of the device is further improved, and the device's ability to control power is also improved.

[0038] Example 6: Reference Figures 1-4The front transition mechanism 2 includes a front transition plate 16, a scissor mechanism 17, and a second lifting hydraulic cylinder 18. The scissor mechanism 17 is connected to the loading and unloading platform 1. The front transition plate 16 is connected to the top of the scissor mechanism 17. The end of the second lifting hydraulic cylinder 18 is hinged to the bottom of the front transition plate 16. The other end of the second lifting hydraulic cylinder 18 is hinged to the loading and unloading platform 1. The second lifting hydraulic cylinder 18 is connected to the hydraulic system through a pipe.

[0039] The principles and beneficial effects of the above scheme are as follows:

[0040] The hydraulic system adjusts the height of the lifting hydraulic cylinder 18 through pipeline 4, which in turn adjusts the height of the front transition plate 16. The scissor mechanism 17 plays a guiding role in the height adjustment of the front transition plate 16. The hydraulic system is controlled by lifting hydraulic cylinder 18 through pipeline 4, which further improves the device's power control capability.

[0041] Example 7: Reference Figures 1-4 The hydraulic system includes a hydraulic pump and a hydraulic tank. The hydraulic pump and hydraulic tank are installed at the bottom of the vehicle loading and unloading platform 1. One side of the hydraulic pump is connected to the hydraulic tank, and the other side of the hydraulic pump is connected to pipes 1, 2, 3 and 4. The hydraulic tank is filled with hydraulic oil. The hydraulic pump is electrically connected to the electrical control system. An air-cooling mechanism is connected to the hydraulic tank and is electrically connected to the electrical control system.

[0042] The principles and beneficial effects of the above scheme are as follows:

[0043] The hydraulic pump can output the hydraulic oil in the hydraulic tank to the load mechanism connected to it through pipes one, two, three and four, and then control the connected mechanism through different load mechanisms; the air-cooling mechanism is electrically connected to the electrical control system, which facilitates the cooling of the hydraulic oil in the hydraulic tank when the ambient temperature of the device is high, so as to ensure that the fluidity of the hydraulic oil does not exceed its normal operating value when working in a high-temperature environment.

[0044] Example 8: Reference Figures 1-4 The hydraulic oil is specifically PAG hydraulic oil.

[0045] The principles and beneficial effects of the above scheme are as follows:

[0046] The device uses PAG hydraulic oil as the medium for the power system. PAG hydraulic oil itself has extremely strong low-temperature resistance, and its temperature range can be as low as -50℃ or lower. Therefore, the device can drive the load mechanism using the hydraulic oil filled in the hydraulic tank in both high-temperature and low-temperature environments, which greatly improves the device's ability to work under different working conditions and further enhances the device's practicality.

[0047] Example 9: Reference Figures 1-4 The electrical control system includes a PLC controller and a human-machine interface panel. The PLC controller and the human-machine interface panel are installed at the bottom of the vehicle loading and unloading platform 1. The PLC controller is electrically connected to the human-machine interface panel, electrically connected to the battery on the vehicle, electrically connected to the hydraulic pump, and electrically connected to the air-cooling mechanism.

[0048] The principles and beneficial effects of the above scheme are as follows:

[0049] The PLC controller can store programs in advance. The PLC controller is powered by the vehicle's battery. The human-machine interface panel, which serves as the operating terminal, can control the air-cooling mechanism and hydraulic pump through the PLC controller. The human-machine interface panel is a display with buttons. The mechanism greatly improves the convenience of the device during operation and reduces the complexity of the device. When the parts in the mechanism are damaged, they can be quickly replaced and repaired.

[0050] Example 10: Reference Figures 1-4 It also includes: pressure sensors, pressure sensors installed in the pipes, pressure sensor 2 installed in pipe 2, pressure sensor 3 installed in pipe 3, and pressure sensor 4 installed in pipe 4. Pressure sensors 2, 3, and 4 are all electrically connected to the PLC controller. Solenoid valves 2, 3, and 4 are respectively installed in pipes 2, 3, and 4. Solenoid valves 2, 3, and 4 are all electrically connected to the PLC controller.

[0051] The principles and beneficial effects of the above scheme are as follows:

[0052] Since the hydraulic system load operates independently, multiple solenoid valves are installed. A PLC controller can open the corresponding solenoid valve to circulate a pipeline. After the pipeline is circulated, the PLC controller monitors the signals from the corresponding pressure sensors to prevent the actual pressure of the load mechanism from exceeding the safe operating pressure. Simultaneously, the preset values ​​of the pressure sensors are compared with the pressure values ​​within the pipeline to monitor the displacement of the load mechanism's output end and determine if the required displacement has been reached. The specific pressure sensor model is GML670, a strain gauge type. The pressure sensor component experiences [unspecified pressure] within the pipeline. A uniform increase in pressure can be converted into a uniformly changing electrical signal, which is fed back to the PLC controller for real-time monitoring of pressure changes. This type of sensor is chosen because of its low cost, simple structure, and high reliability. It is also a common component widely used in various fields, further indicating its low procurement cost and high replaceability with similar sensors. Therefore, in practical operation, this type of sensor significantly reduces the cost of the device and simplifies component replacement, which is of great significance to the practicality of the device. Based on other embodiments, it is known that after the chain 8 stops working, it can provide friction to the bottom of the material, at which point the hydraulic motor 20 is in a locked state. However, existing technologies still have... The drawback is that existing hydraulic motor parts require internal locking devices for locking, which significantly increases the complexity of the parts and affects the procurement cost. This solution uses a hydraulic motor 20 connected to a hydraulic oil tank via a pipeline. A hydraulic pump provides power to the hydraulic oil, and the solenoid valve inside the pipeline can be controlled by a PLC controller. Therefore, when the hydraulic motor 20 stops working, the solenoid valve can be controlled to close the pipeline. When the hydraulic oil stops flowing in the pipeline, the output of the hydraulic motor 20 simultaneously stops working, thus locking the chain 8. In the locked state, because the hydraulic oil has very low compressibility, the locked chain 8 has strong stability, preventing the movement of materials from driving the chain 8 or the hydraulic system. The movement of the output end of motor 20 improves the safety of materials during transportation. At the same time, when the PLC controller closes the solenoid valve, the hydraulic pump stops working synchronously. However, there is still flowing hydraulic oil in the pipeline. Therefore, when the solenoid valve closes, it is not instantaneous but uniform due to the inertia of the hydraulic oil. Consequently, the locking process of hydraulic motor 20 is uniform, that is, its output end gradually changes from a rotating state to a locked state. Therefore, the chain 8 of this device slowly reduces its speed before stopping, which can prevent materials from being thrown out of the device due to excessive inertia. Based on the above principle, it can be seen that the pipeline mechanism controlled by other solenoid valve parts can also uniformly reduce the movement speed of the connected load, thus improving the overall safety of the device.This application uses a GML670 sensor. When the signal fed back to the PLC controller does not change at a uniform rate, it indicates that the pressure is unstable. This suggests the presence of air bubbles in the hydraulic oil, other liquids within the hydraulic oil, the simultaneous presence of both gas and liquid phases, or a leak in the pipeline structure causing signal fluctuations. In this case, the pipeline structure, or the connection between the pipeline structure and the load mechanism and hydraulic system, should be directly inspected for leaks. If a leak is found, the fault should be eliminated. If none of the above faults exist, the presence of a mixture within the hydraulic oil should be considered. If the mixture is gaseous, specifically air bubbles, the air-cooling mechanism should be activated to cool the hydraulic oil tank. If the signal returns to normal, the bubble bursts, eliminating the fault. If the fault persists, it can be eliminated by adding a desiccant to the hydraulic oil tank. All of the above processes are performed using… This solution utilizes solenoid valve components, pressure sensor components, a PLC controller, and a human-machine interface panel. Furthermore, the device eliminates the need for a temperature sensor. It is common knowledge that when hydraulic oil is affected by temperature changes, its fluidity increases dramatically while its viscosity decreases. This leads to a corresponding decrease in the pressure reported by the pressure sensor when the hydraulic pump delivers the same power to the hydraulic oil. At this point, a cooling mechanism can quickly cool the hydraulic oil to prevent adverse factors such as reduced efficiency of the load mechanism, accelerated oxidation of the hydraulic oil, wear of components, and leakage. This solution, in addition to real-time monitoring of the device, can also trigger alarms via the human-machine interface panel. Simultaneously with the alarm, the system performs preliminary troubleshooting to reduce the operator's maintenance difficulty and significantly improves the integration of the device.

[0053] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A power control system for a lift platform of a lift platform truck for heavy cargo, characterized in that, Include: Hydraulic system, electrical system, truck-mounted loading and unloading platform (1), front transition mechanism (2), rolling platform (3) and support mechanism (19), the bottom of the truck-mounted loading and unloading platform (1) is connected with hydraulic system and electrical system, the electrical system is electrically connected with the hydraulic system, the hydraulic system is connected with the front transition mechanism (2), the rolling platform (3) and the support mechanism (19), the front transition mechanism (2), the rolling platform (3) and the support mechanism (19) are connected with the truck-mounted loading and unloading platform (1); The rolling platform (3) comprises a platform (4), a lifting mechanism (5), a hydraulic motor (20) and a conveying mechanism (6), the truck-mounted loading and unloading platform (1) is connected with the lifting mechanism (5), the lifting mechanism (5) is connected with the platform (4), the platform (4) is connected with the hydraulic motor (20), the output end of the hydraulic motor (20) is connected with the conveying mechanism (6), and the conveying mechanism (6) is connected with the platform (4); The conveying mechanism (6) comprises a chain wheel (7) and a chain (8), the output end of the hydraulic motor (20) is connected with the chain wheel (7), the chain wheel (7) is rotatably connected with the platform (4), the chain wheel (7) is drivingly connected with another chain wheel (7) through the chain (8), the other chain wheel (7) is rotatably connected with the platform (4), and the chain (8) is arranged around the platform (4); the hydraulic motor (20) is connected with the hydraulic system through a pipeline; The hydraulic system comprises a hydraulic pump and a hydraulic tank, the bottom of the truck-mounted loading and unloading platform (1) is provided with the hydraulic pump and the hydraulic tank, the hydraulic tank is connected with a forced air cooling mechanism, and the forced air cooling mechanism is electrically connected with the electrical control system; The electrical control system comprises a PLC controller and a man-machine interaction panel, the bottom of the truck-mounted loading and unloading platform (1) is provided with the PLC controller and the man-machine interaction panel, the PLC controller is electrically connected with the man-machine interaction panel, the PLC controller is electrically connected with the storage battery on the vehicle, the PLC controller is electrically connected with the hydraulic pump, and the PLC controller is electrically connected with the forced air cooling mechanism.

2. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 1, characterized in that, The bottom of the truck-mounted loading and unloading platform (1) is rotatably connected with a wheel set mechanism (9), the support mechanism (19) is a hydraulic support leg (10), the truck-mounted loading and unloading platform (1) is connected with a pair of hydraulic support legs (10) at both ends, and the hydraulic support legs (10) are connected with the hydraulic system through a pipeline two.

3. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 2, characterized in that, The lifting mechanism (5) comprises a lifting hydraulic cylinder (11), guide rails (12), a lifting support (13), a chain wheel two (14) and a lifting chain (15), one pair of guide rails (12) is arranged on each side of the vehicle-mounted loading and unloading platform (1), the guide rails (12) are slidably connected to the two sides of the lifting support (13), the chain wheel two (14) is rotatably connected to the bottom of the lifting support (13), the lifting chain (15) is connected to the chain wheel two (14), one end of the lifting chain (15) is connected to the vehicle-mounted loading and unloading platform (1), the other end of the lifting chain (15) is connected to the platform (4), the guide rail two on the side of the platform (4) is slidably connected to the guide rail (12), the lifting hydraulic cylinder (11) is arranged on the vehicle-mounted loading and unloading platform (1), the output end of the lifting hydraulic cylinder (11) is connected to the lifting support (13), and the lifting hydraulic cylinder (11) is connected to the hydraulic system through a pipeline three.

4. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 3, characterized in that, The front transition mechanism (2) comprises a front transition plate (16), a scissor mechanism (17) and a lifting hydraulic cylinder two (18), the scissor mechanism (17) is connected to the vehicle-mounted loading and unloading platform (1), the top of the scissor mechanism (17) is connected to the front transition plate (16), the bottom of the front transition plate (16) is hingedly connected to the end of the lifting hydraulic cylinder two (18), the other end of the lifting hydraulic cylinder two (18) is hingedly connected to the vehicle-mounted loading and unloading platform (1), and the lifting hydraulic cylinder two (18) is connected to the hydraulic system through a pipeline four.

5. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 4, characterized in that, The hydraulic pump is connected to a hydraulic tank on one side and connected to the pipeline, the pipeline two, the pipeline three and the pipeline four on the other side, the hydraulic tank is filled with hydraulic oil, and the hydraulic pump is electrically connected to the electrical control system.

6. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 5, characterized in that, The hydraulic oil is PAG hydraulic oil.

7. The power control system of a self-loading / unloading platform for heavy cargo transportation according to claim 5, characterized in that, Further comprising: A pressure sensor is arranged in the pipeline, a pressure sensor two is arranged in the pipeline two, a pressure sensor three is arranged in the pipeline three, a pressure sensor four is arranged in the pipeline four, the pressure sensor, the pressure sensor two, the pressure sensor three and the pressure sensor four are electrically connected to the PLC controller, the pipeline, the pipeline two, the pipeline three and the pipeline four are respectively provided with an electromagnetic valve, an electromagnetic valve two, an electromagnetic valve three and an electromagnetic valve four, and the electromagnetic valve, the electromagnetic valve two, the electromagnetic valve three and the electromagnetic valve four are electrically connected to the PLC controller.

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