Automatic lifting type cargo carrying platform supporting multi-layer storage

Abstract

The invention relates to an automatic lifting type cargo handling platform supporting multi-layer storage, and belongs to the technical field of automatic guide vehicles. The automatic lifting type cargo carrying platform supporting multi-layer storage comprises a rack, a power driving module, a navigation and control module, a lifting type carrying and storing module and a sensing and interaction module, and an auxiliary mechanism fixedly connected with the power driving module is installed on the surface of the rack; when the power driving module brakes, the navigation and control module closes the electromagnetic valve, hydraulic pressure in the round box suddenly rises to force the hollow impeller to stop rotating, the connecting shaft is locked through the first one-way bearing or the one-way driving assembly, the rotating resistance of the steering wheel is increased, and the braking distance in the low-electric-quantity state is remarkably shortened; the effect is linked with improvement of the cooling efficiency, reliable braking when the SOC of the battery is low is ensured through refrigerant flow management, torque attenuation is avoided, and the operation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of automated guided vehicles (AGVs), and in particular to an automated lifting cargo handling platform that supports multi-level storage. Background Technology

[0002] Automated Guided Vehicles (AGVs) are common material handling equipment in the garment industry, achieving zero-emission transport through battery power. Equipped with a three-dimensional storage and conveying structure, AGVs can safely transport materials such as fabrics, accessories, and garments, making them particularly suitable for use in cleanrooms and intelligent sorting lines in garment factories, combining environmental friendliness with high efficiency.

[0003] In the electric braking system of automated guided vehicles (AGVs), when the battery's state of charge (SOC) falls below a set threshold, the permanent magnet synchronous motor experiences an exponential decrease in output torque due to changes in its back electromotive force characteristics. This technical defect directly results in the electric braking system failing to provide the deceleration torque required by the design, severely impacting the braking performance and operational safety of the AGV. Summary of the Invention

[0004] Therefore, it is necessary to provide an automated lifting cargo handling platform that supports multi-layer storage to address the problem that existing automated guided vehicles have poor braking performance and pose safety hazards when the battery is low.

[0005] An automated lifting cargo handling platform supporting multi-layer storage includes a frame, a power drive module, a navigation and control module, a lifting handling and storage module, and a sensing and interaction module. An auxiliary mechanism fixedly connected to the power drive module is installed on the surface of the frame.

[0006] In one embodiment, the auxiliary mechanism includes a battery liquid cooling assembly and a connecting shaft. The battery liquid cooling assembly is installed in the energy part of the power drive module. The connecting shaft is fixedly connected to the traveling part of the power drive module. A circular box fixedly connected to the power drive module is rotatably connected to the surface of the connecting shaft. A hollow impeller is rotatably connected inside the circular box. A first one-way bearing is embedded in the inner side of the hollow impeller. The inner edge of the first one-way bearing is fixedly connected to the connecting shaft. One end of the hollow impeller is fixedly connected to a one-way drive assembly fixedly connected to the connecting shaft. The one-way drive assembly and the first one-way bearing have the same locking direction. A solenoid valve is fixedly connected and communicated to the top of the circular box. A liquid cooling pipe is fixedly connected and communicated to the top of the solenoid valve and to the inlet end of the battery liquid cooling assembly. A high-pressure infusion pump is fixedly connected and communicated to the bottom of the circular box. An inlet pipe is fixedly connected and communicated to the inlet end of the high-pressure infusion pump and to the outlet end of the battery liquid cooling assembly.

[0007] In one embodiment, the one-way drive assembly includes a driving bevel gear fixedly connected to the surface of the connecting shaft, a rotating bevel gear rotatably connected to the surface of the driving bevel gear and the driven bevel gear sleeved on the surface of the connecting shaft and the surface of the rotating bevel gear are meshed with a second one-way bearing fixedly connected to the surface of the driven bevel gear and the hollow impeller, wherein the locking of the second one-way bearing and the first one-way bearing are the same.

[0008] In one embodiment, the liquid cooling pipe disposed inside the power drive module is spiral in shape, and the material of the portion of the liquid cooling pipe disposed inside the power drive module is copper alloy.

[0009] In one embodiment, the liquid cooling pipe and the liquid inlet pipe are both provided with sufficient length for the power drive module to rotate in the parts located outside the power drive module, and both the liquid cooling pipe and the liquid inlet pipe are made of high-pressure resistant flexible hose material.

[0010] In one embodiment, the connection points of the solenoid valve and the high-pressure infusion pump to the circular box are both located on the same side of the hollow impeller axis, and the connection points of the solenoid valve and the circular box are symmetrically distributed on the upper and lower sides of the circular box axis, respectively.

[0011] In one embodiment, an O-ring is embedded between the circular box and the hollowed-out impeller, and the O-ring is a fluororubber material component.

[0012] In one embodiment, the circular box and the hollowed-out impeller each have an annular cavity at their opposite ends, and the two annular cavities together form an O-shape, with the O-ring being embedded between the two annular cavities.

[0013] In one embodiment, a support ring, which is a stainless steel component, is embedded inside the O-ring.

[0014] In one embodiment, the diameter ratio of the support ring to the O-ring is four to five.

[0015] In one embodiment, the outlet end of the battery liquid cooling assembly is fixedly connected to and communicates with a distributor, and the inlet end of the liquid cooling pipe is connected to and communicates with the outlet flange of the distributor.

[0016] 1. In the aforementioned multi-layer storage-supporting automatic lifting cargo handling platform, when the power drive module brakes, the navigation and control module closes the solenoid valve, and the hydraulic pressure inside the circular box suddenly rises, forcing the hollow impeller to stop rotating. The connecting shaft is locked through the first one-way bearing or one-way drive assembly, increasing the rotational resistance of the steering wheel and significantly shortening the braking distance in low battery conditions. This effect is linked to the improvement of cooling efficiency. By managing the refrigerant flow, reliable braking is ensured when the battery state of charge (SOC) is low, avoiding torque decay and improving operational safety.

[0017] 2. The auxiliary mechanism uses the motion of the power drive module to drive the hollow impeller to rotate, which accelerates the circulation and delivery rate of refrigerant in the round box and liquid cooling pipe, improves the cooling efficiency of the battery liquid cooling components and drive motor, and avoids thermal drift. This effect works in conjunction with the enhanced braking performance, indirectly supporting the braking assistance function through temperature stability, and ensuring driving accuracy and system response consistency.

[0018] 3. The design of the unidirectional drive assembly and the first unidirectional bearing ensures uninterrupted refrigerant circulation and continuous operation of the hollow impeller during forward and reverse movements; the locking connecting shaft provides resistance during braking; this effect is linked to the braking and cooling mechanisms, maintaining the stability of the power drive module under varying operating conditions, extending equipment life and improving overall safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram showing the overall connection between the power drive module and the auxiliary mechanism in this invention;

[0022] Figure 3 This is a partial connection diagram of the power drive module and the auxiliary mechanism in this invention;

[0023] Figure 4 This is a partial cross-sectional schematic diagram of the power drive module and auxiliary mechanism in this invention;

[0024] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0025] Figure 6 This is a partial structural diagram of the power drive module and auxiliary mechanism in this invention;

[0026] Figure 7 This is a partial structural diagram of the auxiliary mechanism in this invention;

[0027] Figure 8 This is a partial cross-sectional schematic diagram of the auxiliary mechanism in this invention;

[0028] Figure 9 This is a partial explosion diagram of the auxiliary mechanism in this invention.

[0029] Figure label:

[0030] 100. Frame; 200. Power drive module; 300. Navigation and control module; 400. Lifting and handling storage module; 500. Sensing and interaction module; 600. Auxiliary mechanism; 610. Battery liquid cooling assembly; 620. Connecting shaft; 630. Circular box; 640. Hollowed-out impeller; 650. First one-way bearing; 660. One-way drive assembly; 661. Driving bevel gear; 662. Intermediate bevel gear; 663. Driven bevel gear; 664. Second one-way bearing; 670. Solenoid valve; 680. Liquid cooling pipe; 690. High-pressure infusion pump; 6100. Inlet pipe; 6110. O-ring seal; 6120. Annular cavity; 6130. Support ring; 6140. Diverter. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0036] The following is combined Figures 1-9 This invention describes an automated lifting cargo handling platform that supports multi-level storage.

[0037] In one embodiment, an automated lifting cargo handling platform supporting multi-layer storage includes a frame 100, a power drive module 200, a navigation and control module 300, a lifting handling and storage module 400, and a sensing and interaction module 500. An auxiliary mechanism 600 fixedly connected to the power drive module 200 is installed on the surface of the frame 100.

[0038] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the auxiliary mechanism 600 includes a battery liquid cooling assembly 610 and a connecting shaft 620. The battery liquid cooling assembly 610 is installed in the energy section of the power drive module 200. The connecting shaft 620 is fixedly connected to the traveling section of the power drive module 200. A circular box 630, which is fixedly connected to the power drive module 200, is rotatably connected to the surface of the connecting shaft 620. A hollow impeller 640 is rotatably connected inside the circular box 630. A first one-way bearing 650 is embedded in the inner side of the hollow impeller 640. The inner edge of the first one-way bearing 650 is fixedly connected to the connecting shaft 620. One end of the hollow impeller 640... A one-way drive assembly 660 is fixedly connected to the connecting shaft 620. The one-way drive assembly 660 and the first one-way bearing 650 are locked in the same direction. A solenoid valve 670 is fixedly connected and connected to the top of the circular box 630. A liquid cooling pipe 680 is fixedly connected and connected to the top of the solenoid valve 670 and to the inlet end of the battery liquid cooling assembly 610. A high-pressure infusion pump 690 is fixedly connected and connected to the bottom of the circular box 630. An inlet pipe 6100 is fixedly connected and connected to the inlet end of the high-pressure infusion pump 690 and to the outlet end of the battery liquid cooling assembly 610.

[0039] like Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9 As shown, the one-way drive assembly 660 includes a driving bevel gear 661 fixedly connected to the surface of the connecting shaft 620, a rotating bevel gear 662 rotatably connected to the power drive module 200, a driven bevel gear 663 sleeved on the surface of the connecting shaft 620, and a second one-way bearing 664 fixedly connected to the hollow impeller 640. The locking mechanisms of the second one-way bearing 664 and the first one-way bearing 650 are the same.

[0040] When the locking of the first one-way bearing 650 is the same as the forward direction of the power drive module 200, while the power drive module 200 drives the connecting shaft 620 to rotate forward, the connecting shaft 620 drives the hollow impeller 640 to rotate through the locked first one-way bearing 650. The hollow impeller 640 rotates and stirs the refrigerant inside the round box 630, and accelerates the refrigerant into the liquid cooling pipe 680 to improve the circulation rate of the refrigerant. Since the locking of the second one-way bearing 664 is the same as that of the first one-way bearing 650, the connecting shaft 620 simultaneously drives the active bevel gear 661 to rotate. The active bevel gear 661 drives the driven bevel gear 663 to rotate in the opposite direction through the intermediate bevel gear 662. At this time, the second one-way bearing 664 is in an automatic rotation state, and the driven bevel gear 663 cannot drive the hollow impeller 640 to rotate through the second one-way bearing 664.

[0041] When the power drive module 200 drives the connecting shaft 620 to rotate backward, the connecting shaft 620 cannot drive the hollow impeller 640 to rotate through the first one-way bearing 650, which is in an automatic rotation state. At the same time, the connecting shaft 620 drives the active bevel gear 661 to rotate. The active bevel gear 661 drives the driven bevel gear 663 to rotate in the opposite direction through the intermediate bevel gear 662. At this time, the second one-way bearing 664 is in a locked state. The driven bevel gear 663 drives the hollow impeller 640 to continue rotating along the original trajectory through the second one-way bearing 664, so as to ensure that the refrigerant is accelerated to be delivered to the liquid cooling pipe 680.

[0042] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the liquid cooling pipe 680 inside the power drive module 200 is spiral-shaped, and the portion of the liquid cooling pipe 680 inside the power drive module 200 is made of copper alloy; both the portion of the liquid cooling pipe 680 and the portion of the inlet pipe 6100 outside the power drive module 200 are reserved with sufficient length for the power drive module 200 to rotate, and both the portion of the liquid cooling pipe 680 outside the power drive module 200 and the inlet pipe 6100 are made of high-pressure resistant hose material; the connection points of the solenoid valve 670 and the high-pressure infusion pump 690 with the circular box 630 are all located on the same side of the axis of the hollow impeller 640, and the connection points of the solenoid valve 670 and the circular box 630 are symmetrically distributed with respect to the connection points of the high-pressure infusion pump 690 and the circular box 630. On both sides of the axis of the circular box 630; an O-ring 6110 is embedded between the circular box 630 and the hollow impeller 640. The O-ring 6110 is made of fluororubber. An annular cavity 6120 is opened at the opposite end of the circular box 630 and the hollow impeller 640. The two annular cavities 6120 together form an O-shape. The O-ring 6110 is embedded between the two annular cavities 6120. A support ring 6130 is embedded inside the O-ring 6110. The support ring 6130 is made of stainless steel. The diameter ratio of the support ring 6130 to the O-ring 6110 is four to five. Under high pressure, the support ring 6130 expands radially to compress the sealing ring, so that the fluororubber material tightly fills the micro gaps of the annular cavity 6120. Meanwhile, the sidewall of the annular cavity 6120 is designed with a 15° conical surface, which increases the sealing contact area as the pressure increases. The outlet end of the battery liquid cooling assembly 610 is fixedly connected to and communicates with a distributor 6140. The inlet end of the liquid cooling pipe 680 is connected to and communicates with the outlet flange of the distributor 6140. The distributor 6140 integrates a dynamic flow distribution valve, which adjusts the flow ratio in real time according to the battery temperature sensor data and the drive motor load. Specifically, it is a three-way proportional valve, whose opening is controlled by the vehicle controller through a PWM signal. Under the premise of prioritizing battery cooling, the remaining refrigerant flow is distributed to the circular box 630 of the auxiliary mechanism 600 at a ratio of 5% to 20%.

[0043] Additional information:

[0044] Rack 100:

[0045] Vehicle frame: The basic structure that supports all equipment, which must meet the requirements of load strength, spatial layout, safety protection, anti-collision sensors (four-corner roller collision avoidance), emergency stop button, and audible and visual alarm device.

[0046] Power drive module 200

[0047] Omnidirectional drive structure

[0048] Four steering wheel configuration:

[0049] Each steering wheel contains an independent drive motor and a steering motor, which are controlled collaboratively via a CAN bus. The copper alloy part of the liquid cooling pipe 680 is embedded inside the housing of the independent drive motor. One end of the connecting shaft 620 is fixedly connected to the rotation shaft of the steering wheel. The circular box 630 is fixedly connected to the surface of the steering wheel mounting bracket. The hub has a built-in encoder that provides real-time feedback on the rotation speed and angle.

[0050] Working principle:

[0051] Four-wheel vector synthesis enables lateral translation, diagonal movement, and in-situ rotation.

[0052] Note: The drive wheels are mostly made of polyurethane-coated aluminum alloy rims, which take into account both wear resistance and shock absorption requirements.

[0053] 24V / 48V DC battery, range ≥ 8 hours; drive type: electric drive (environmentally friendly and low noise) or hydraulic drive (heavy-duty scenarios).

[0054] Navigation and Control Module 300:

[0055] Core navigation technologies:

[0056] Magnetic guidance: ground magnetic strip / wire magnetic field induction (low cost but difficult to change paths) Laser navigation: reflector positioning or SLAM algorithm (high accuracy, adaptable to complex environments) Visual navigation: QR code / image recognition (high flexibility, dependent on ambient light) Hierarchical control system:

[0057] Central control system: task generation, vehicle scheduling, communication management; Onboard controller: navigation command execution, motor drive, and transfer operation.

[0058] 400 Lifting and Transporting Storage Module

[0059] Gantry frame: Fixed to the top of the frame 100, with diagonal bracing on both sides for reinforcement of the chain lift.

[0060] The storage platform is embedded in the inner side of the gantry frame, with the lifting plate connecting to the first electric conveyor belt (optional robotic arm).

[0061] Multiple platforms are bolted to the top of the gantry frame and equipped with a second electric conveyor belt.

[0062] Perception and Interaction Module 500:

[0063] Environmental perception:

[0064] LiDAR / ultrasonic sensors (real-time obstacle detection), visual cameras (assisted positioning / cargo recognition), and interactive systems:

[0065] Human-Machine Interface (HMI): Task status display and manual intervention; Wireless communication: Data synchronization with WMS / MES system.

[0066] Workflow

[0067] Task issuance: The central control system receives instructions (such as "Warehouse A → Line B") and assigns AGV path planning: The on-board controller generates the optimal path based on the map;

[0068] Navigation execution: Movement is guided by laser / magnetic guidance, and sensors enable real-time obstacle avoidance and relocation operations;

[0069] Temporary storage: robotic arm / first electric conveyor belt → lifting plate → chain lifting → second electric conveyor belt;

[0070] Retrieval process: Reverse the storage process;

[0071] Charging maintenance: It will automatically return to the charging station when the battery level is below the threshold.

[0072] The battery liquid cooling assembly 610 includes the following structure:

[0073] Liquid cooling plate

[0074] Material: Aluminum alloy / Copper alloy;

[0075] Structure: Internal microchannels (serpentine / parallel design);

[0076] Function: By using a thermally conductive interface material (such as graphite sheet) to contact the heat-generating components of the battery, the contact thermal resistance is reduced.

[0077] Loop Unit

[0078] Coolant: Ethylene glycol aqueous solution or deionized water (high thermal conductivity, insulation);

[0079] Water pump: 120W brushless DC motor (BLDC water pump);

[0080] Piping: Integrated temperature sensors and valves for real-time monitoring of flow and temperature.

[0081] Heat dissipation unit

[0082] Heat exchanger: Plate / tube design, separating hot and cold fluids through metal walls;

[0083] Cooling tower: ultimately releases heat into the external environment.

[0084] control system

[0085] BMS / CDU: Regulates coolant flow and temperature to maintain cell temperature difference ≤5℃.

[0086] Operating procedure of battery liquid cooling assembly 610:

[0087] Heat absorption stage: The coolant is pressurized by the water pump and flows into the liquid cooling plate to absorb heat from the battery / chip;

[0088] Circulation stage: The high-temperature coolant is delivered to the heat exchanger and exchanges heat with the refrigerant (such as chilled water);

[0089] Heat dissipation stage: Heat is discharged through the cooling tower, and the coolant is returned to the circulation system after cooling down;

[0090] Intelligent control: Real-time feedback of sensor data dynamically adjusts pump speed and valve opening.

[0091] Cooling cycle of auxiliary mechanism 600:

[0092] When cooling the heat-generating parts of the battery, the battery liquid cooling assembly 610 diverts a portion of the refrigerant, which is then metered by the high-pressure pump 690 through the inlet pipe 6100 to the cylindrical container 630. Once the cylindrical container 630 is full of refrigerant, the overflowing refrigerant enters the independent drive motor through the liquid cooling pipe 680, achieving motor temperature control, preventing thermal drift, and thus improving the drive / braking accuracy of the power drive module 200. Finally, the refrigerant returns to the battery liquid cooling assembly 610 through the liquid cooling pipe 680 to complete the circulating cooling process.

[0093] Braking assistance process of auxiliary mechanism 600:

[0094] When the power drive module 200 brakes, the navigation and control module 300 closes the solenoid valve 670, blocking the refrigerant from entering the liquid cooling pipe 680. At this time, the hydraulic pressure in the circular box 630 rises sharply, forcing the hollow impeller 640 to stop rotating, and locking the connecting shaft 620 through the first one-way bearing 650 or the one-way drive assembly 660, increasing the rotational resistance of the steering wheel. This design can significantly shorten the braking distance in the low battery state, and is effective in both forward and reverse operation.

[0095] It should be noted that the rack 100, power drive module 200, navigation and control module 300, lifting and handling storage module 400, sensing and interaction module 500, battery liquid cooling component 610, solenoid valve 670, high-pressure infusion pump 690, and shunt 6140 mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the rack 100, power drive module 200, navigation and control module 300, lifting and handling storage module 400, sensing and interaction module 500, battery liquid cooling component 610, solenoid valve 670, high-pressure infusion pump 690, and shunt 6140 are all powered by batteries. The specific power supply method is selected according to the situation and will not be elaborated here.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An automated lifting cargo handling platform supporting multi-layer storage, comprising a frame (100), a power drive module (200), a navigation and control module (300), a lifting handling and storage module (400), and a sensing and interaction module (500), characterized in that, An auxiliary mechanism (600) fixedly connected to the power drive module (200) is mounted on the surface of the frame (100); The auxiliary mechanism (600) includes a battery liquid cooling assembly (610) and a connecting shaft (620). The battery liquid cooling assembly (610) is installed in the energy section of the power drive module (200). The connecting shaft (620) is fixedly connected to the traveling section of the power drive module (200). A circular box (630) fixedly connected to the power drive module (200) is rotatably connected to the surface of the connecting shaft (620). A hollow impeller (640) is rotatably connected inside the circular box (630). A first one-way bearing (650) is embedded in the inner side of the hollow impeller (640). The inner edge of the first one-way bearing (650) is fixedly connected to the connecting shaft (620). One end of the 40) is fixedly connected to a one-way drive assembly (660) that is fixedly connected to the connecting shaft (620). The one-way drive assembly (660) and the first one-way bearing (650) are locked in the same direction. The top of the round box (630) is fixedly connected to and connected to a solenoid valve (670). The top of the solenoid valve (670) is fixedly connected to and connected to a liquid cooling pipe (680) that is fixedly connected to and connected to the liquid inlet end of the battery liquid cooling assembly (610). The bottom of the round box (630) is fixedly connected to and connected to a high-pressure infusion pump (690). The liquid inlet end of the high-pressure infusion pump (690) is fixedly connected to and connected to an inlet pipe (6100) that is fixedly connected to and connected to the liquid outlet end of the battery liquid cooling assembly (610).

2. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 1, characterized in that, The one-way drive assembly (660) includes a drive bevel gear (661) fixedly connected to the surface of the connecting shaft (620). The surface of the drive bevel gear (661) is meshed with a transfer bevel gear (662) rotatably connected to the power drive module (200). The surface of the transfer bevel gear (662) is meshed with a driven bevel gear (663) sleeved on the surface of the connecting shaft (620). The surface of the driven bevel gear (663) is fixedly connected with a second one-way bearing (664) fixedly connected to the hollow impeller (640). The locking mechanisms of the second one-way bearing (664) and the first one-way bearing (650) are the same.

3. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 1, characterized in that, The liquid cooling pipe (680) is spiral-shaped and located inside the power drive module (200). The material of the liquid cooling pipe (680) inside the power drive module (200) is copper alloy.

4. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 3, characterized in that, The liquid cooling pipe (680) and the liquid inlet pipe (6100) are both located outside the power drive module (200) and are provided with sufficient length for the power drive module (200) to rotate. The liquid cooling pipe (680) located outside the power drive module (200) and the liquid inlet pipe (6100) are both made of high-pressure resistant hose material.

5. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 1, characterized in that, The connection points of the solenoid valve (670) and the high-pressure infusion pump (690) with the circular box (630) are all located on the same side of the axis of the hollow impeller (640). The connection points of the solenoid valve (670) and the circular box (630) are symmetrically distributed on the upper and lower sides of the axis of the circular box (630) with the connection points of the high-pressure infusion pump (690) and the circular box (630).

6. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 1, characterized in that, An O-ring (6110) is embedded between the round box (630) and the hollow impeller (640), and the O-ring (6110) is a fluororubber material component.

7. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 6, characterized in that, The circular box (630) and the hollowed-out impeller (640) each have an annular cavity (6120) at their opposite ends. The two annular cavities (6120) together form an O-shape, and the O-ring seal (6110) is embedded between the two annular cavities (6120).

8. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 7, characterized in that, The O-ring (6110) has a support ring (6130) embedded inside it, and the support ring (6130) is a stainless steel component.

9. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 8, characterized in that, The diameter ratio of the support ring (6130) to the O-ring (6110) is four to five.

10. The automatic lifting cargo handling platform supporting multi-layer storage according to claim 1, characterized in that, The liquid outlet of the battery liquid cooling assembly (610) is fixedly connected to and communicates with a distributor (6140), and the liquid inlet of the liquid cooling pipe (680) is connected to and communicates with the liquid outlet flange of the distributor (6140).

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