A pure electric flexible docking loading system

Abstract

The application discloses a pure electric flexible docking loading system, which has a rack, four heavy-duty universal wheels for supporting are arranged on the bottom of the rack, four sets of electric lifting devices are arranged on the bottom surface of the rack and located at the front and rear, a flexible docking adjusting device is arranged on the middle of the bottom of the rack, two sets of flexible docking adjusting devices are arranged on the bottom of the front end of the rack, an electric gantry lifting baffle device is arranged at the tail end of the upper surface of the rack, a telescopic movable load plate system for carrying a goods pallet is arranged on the upper surface of the rack, a chain plate mechanism for goods receiving is further arranged on the upper surface of the rack and close to the front end, and a push rod system is further arranged on the upper surface of the rack, the push rod system can move along the length direction of the rack and push the goods carried on the load plate system together with the goods pallet to the front, the loading system proposes a novel structure design, can greatly save the system maintenance cost, improves the loading efficiency, and reduces the technical requirements of the docking loading.

Description

Technical Field

[0001] This invention relates to the field of automated mechanical equipment technology, and in particular to a pure electric flexible docking loading system. Background Technology

[0002] In the field of loading equipment, there is a demand for palletized loading of containers and flatbed trucks. Loading equipment designed for this purpose generally has the following characteristics: the lifting system and material-blocking device are mostly hydraulic lifting devices, which have many potential oil leaks and are cumbersome to maintain; during loading, the alignment device can mostly only move left and right to align the truck, requiring the truck to be parallel to the loading equipment for safe and stable loading. This significantly reduces the efficiency of logistics loading and places higher demands on the driving skills of truck drivers. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned issues by providing a pure electric flexible docking loading system. This loading system proposes a completely new structural design that can significantly reduce system maintenance costs, improve loading efficiency, and reduce the technical requirements for docking.

[0004] The specific solution of this invention is as follows: a pure electric flexible docking loading system, comprising a frame, four heavy-duty casters for support at the bottom of the frame, four sets of electric lifting devices arranged at the front and rear of the bottom surface of the frame, the four sets of electric lifting devices being paired up and connected in pairs by a connecting frame to operate synchronously; a flexible docking adjustment device is provided in the middle of the bottom of the frame, and two sets of flexible docking adjustment devices are provided at the bottom of the front end of the frame, the three sets of flexible docking adjustment devices being used for alignment adjustment of the entire frame; an electric gantry lifting baffle device is provided at the rear end of the frame; a pallet system for carrying cargo pallets is provided on the frame, which can be telescopically moved along the length of the frame; a chain plate mechanism for receiving cargo is also provided on the frame near the front end, which can transfer the received cargo to the pallet system; a lever system is also provided on the frame, which can move along the length of the frame and move the cargo carried on the pallet system forward together with the cargo pallet.

[0005] Furthermore, the three sets of flexible docking adjustment devices described in this invention have the same structure, each including an electric cylinder mounting base, an electric cylinder, and a pull rope encoder. The pull rope encoder is mounted on the electric cylinder to monitor the extension displacement or rotation angle of the electric cylinder. The front end of the electric cylinder is hinged to the electric cylinder mounting base, which is fixedly placed on the ground or platform. The tail end of the electric cylinder is hinged to a corresponding guide seat. The guide seat has a square cross-section. The tail end of one of the three electric cylinders located in the middle of the bottom of the frame is hinged to a guide seat, while the tail ends of the other two electric cylinders are hinged together to another guide seat. Each guide seat is hollow inside and extends vertically. The bottom of the guide seat is equipped with universal casters, and guide wheels are provided on the side walls in the front, back, left, and right directions of the guide seat. A motion connecting shaft for vertical movement is inserted inside the guide seat. The cross-section of the motion connecting shaft is also square, and the upper end of the motion connecting shaft is connected to the bottom of the frame.

[0006] Furthermore, the electric lifting device described in this invention has a lifting connecting seat, in which a lifting column is vertically installed. A disc seat is provided at the bottom of the lifting column. A gear and rack lifting mechanism is provided inside the lifting connecting seat. A lifting drive motor is provided on the outer wall of the lifting connecting seat. The power of the lifting drive motor drives the gear and rack lifting mechanism, thereby causing the lifting connecting seat to rise or fall relative to the lifting column. The lifting connecting seat then drives the entire frame to rise or fall through the connecting frame.

[0007] Furthermore, the carrier system of the present invention includes a carrier assembly and a conveying assembly. The carrier assembly has a carrier frame, on which a carrier roller track composed of several unpowered carrier rollers is provided. Carrier wheels are provided on the front and rear sides of the bottom of the carrier frame. A carrier track is also provided on the frame. The carrier wheels roll along the carrier track. A carrier connecting seat is also provided at the bottom of the carrier frame. The conveying assembly includes two sets of carrier drive chain assemblies arranged in parallel front and rear. The carrier drive chain assemblies are mounted on the frame and placed below the carrier frame. The drive chain in the carrier drive chain assembly is also provided with a carrier connector. The carrier connector is connected to the carrier connecting seat by bolts.

[0008] Furthermore, the bottom and sides of the onboard connector described in this invention are also provided with limiting rollers; the onboard transmission chain assembly includes an onboard transmission chain, a power sprocket, a tension sprocket, and an onboard drive servo motor, which drives two onboard transmission chains to run synchronously through a synchronous output shaft.

[0009] Furthermore, the lever system described in this invention includes two lever travel chains and a lever travel track. One lever travel chain is driven by a lever chain travel servo motor. Each of the two lever travel chains has a lever seat fixedly connected at a corresponding position. One lever seat has a limit roller at its bottom, which carries the lever seat along the corresponding lever travel track. The lever seat also has a flip motor. The output end of the flip motor is connected to a flip shaft through a gear assembly. A lever is fixedly connected to the flip shaft. The lever is horizontally positioned above the carrier system and perpendicular to the running direction of the carrier system. The other lever seat also has a retainer, which is placed in the lever when it flips and falls.

[0010] Furthermore, in this invention, an infrared photoelectric sensor is also provided on the lever seat corresponding to the flip shaft, which is used to detect whether the lever is in position.

[0011] Furthermore, the electric gantry lifting baffle device described in this invention includes a column gantry, with a double-headed lifting motor installed at the top center of the column gantry. The output end of the lifting motor is connected to a drive shaft on each side, and each of the two drive shafts corresponds to a set of chain lifting mechanisms. The two sets of chain lifting mechanisms achieve lifting and lowering under the drive of the lifting motor. Both sets of chain lifting mechanisms include lifting chains, and a lifting truss is connected between the two lifting chains. The lifting truss moves up and down along the columns on both sides of the column gantry together with the lifting chains. Two horizontally arranged material-blocking electric cylinders are installed in the middle of the lifting truss, and a material-blocking plate is connected to the front end of the piston rod of the two material-blocking electric cylinders.

[0012] Furthermore, in this invention, the inner sides of the columns on both sides of the column gantry are respectively provided with material-stopping rollers, and the material-stopping rollers are all arranged vertically and can roll flexibly.

[0013] Furthermore, the frame described in this invention is a rectangular frame structure formed by assembling and welding square steel.

[0014] The present invention has the following beneficial effects:

[0015] 1. This invention addresses the pain points of traditional loading systems by adopting a newly designed pure electric omnidirectional flexible loading system. It replaces hydraulic drive with electric motor drive, reducing hydraulic maintenance costs. It is also equipped with a flexible docking system, which allows trucks to be loaded efficiently even when they are parked at a certain angle, without having to re-park and saving loading time.

[0016] 2. The flexible docking adjustment device in this invention enables the entire frame of the loading system of this invention to be docked and adjusted at a certain angle when the train car is misaligned, without the need for the freight car itself to be adjusted, which is efficient and fast.

[0017] 3. The system of the present invention realizes the automated operation of loading goods into the warehouse in a neat and orderly manner. The goods are pushed forward row by row from the moment they are put on the shelf until they are completely put into the truck compartment, which is neat, orderly, efficient and fast. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the onboard component structure in this invention;

[0020] Figure 3 This is a schematic diagram of the conveying component structure in this invention;

[0021] Figure 4 This is a schematic diagram of the electric lifting device in this invention;

[0022] Figure 5 This is a schematic diagram of the lever system structure in this invention;

[0023] Figure 6 yes Figure 5 Schematic diagram of the central lever and the tilting motor section;

[0024] Figure 7 This is a schematic diagram of the overall flexible docking adjustment device in this invention;

[0025] Figure 8 This is a schematic diagram of the electric gantry lifting baffle device in this invention;

[0026] Figure 9 This is a schematic diagram showing the state of the carrier board system when it is ejected in this invention;

[0027] Figure 10 This is a schematic diagram of the material blocking and return state of the electric gantry lifting baffle device in this invention.

[0028] In the diagram: 1—Electric gantry lifting baffle device, 2—Frame, 3—Chain plate mechanism, 4—Flexible docking adjustment device, 5—Lever system, 6—Carrier plate system, 7—Electric lifting device, 8—Connecting frame, 9—Onboard frame, 10—Carrying roller, 11—Onboard traveling wheel, 12—Onboard connecting seat, 13—Onboard connector, 14—Onboard transmission chain, 15—Onboard drive servo motor, 16—Lifting connecting seat, 17—Disc seat, 18 and 34—Rope encoder, 19—Lifting column, 20—Lifting drive motor, 21—Lever travel track, 22—Lever travel chain, 23—Lever chain travel track Servo motor, 24—Card holder, 25—Lever, 26—Gear assembly, 27—Infrared photoelectric sensor, 28—Lever holder, 29—Tilting motor, 30—Tilting shaft, 31—Limit roller, 32—Heavy-duty caster, 33—Motion connecting shaft, 35—Electric cylinder, 36—Electric cylinder mounting base, 37—Universal caster, 38—Guide seat, 39—Stop roller, 40—Column gantry, 41—Drive shaft, 42—Lifting motor, 43—Stop plate, 44—Chain lifting mechanism, 45—Stop electric cylinder, 46—Lifting gantry, 47—Cargo pallet, 48—Waiting station, 49—Truck body, 50—Cargo. Detailed Implementation

[0029] The technical solution 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 skilled in the art without creative effort are within the protection scope of the present invention. In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] See Figures 1 to 8This invention is a pure electric flexible docking loading system, comprising a frame 2. Furthermore, the frame is a rectangular frame structure assembled and welded from square steel, facilitating the extension and retraction of the carrier plate system. The bottom of the frame is equipped with four heavy-duty casters 32 for support. Four sets of electric lifting devices 7 are arranged at the front and rear of the bottom surface of the frame. These four sets of electric lifting devices are grouped in pairs, with the two sets in the same group connected by a connecting frame 8 to operate synchronously. A flexible docking adjustment device 4 is located in the middle of the bottom of the frame, and two sets of flexible docking adjustment devices are located at the bottom of the front end of the frame. The entire device includes three sets of flexible docking adjustment devices for aligning and adjusting the entire frame; an electric gantry lifting baffle device 1 is installed at the rear end of the frame; a carrier system 6 for carrying cargo pallets 47 is installed on the frame, which can extend and retract along the length of the frame; a chain plate mechanism 3 for receiving cargo is also installed near the front end of the frame, which can transfer the received cargo to the carrier system; a lever system 5 is also installed on the frame, which can move along the length of the frame and push the cargo carried on the carrier system, along with the cargo pallet, forward.

[0032] Furthermore, in this embodiment, the three sets of flexible docking adjustment devices have the same structure, each including an electric cylinder mounting base 36, an electric cylinder 35, and a pull rope encoder 34. The pull rope encoder is mounted on the electric cylinder to monitor the extension displacement or rotation angle of the electric cylinder. The front end of the electric cylinder is hinged to the electric cylinder mounting base, which is fixedly placed on the ground or platform. The tail end of the electric cylinder is hinged to the corresponding guide seat 38. The guide seat has a square cross-section. The tail end of one of the three electric cylinders located in the middle of the bottom of the frame is hinged to a guide seat, while the tail ends of the other two electric cylinders are hinged together to another guide seat. Each guide seat is hollow inside and runs vertically through. The bottom of the guide seat is equipped with universal casters 37. Guide wheels are provided on the side walls in the front, back, left, and right directions of the guide seat. A vertically moving motion connecting shaft 33 is inserted inside the guide seat. The cross-section of the motion connecting shaft is also square. The upper end of the motion connecting shaft is connected to the bottom of the frame 2.

[0033] Furthermore, in this embodiment, the electric lifting device has a lifting connecting seat 16, a lifting column 19 is vertically installed inside the lifting connecting seat, a disc seat 17 is provided at the bottom of the lifting column, a gear and rack lifting mechanism is provided inside the lifting connecting seat, and a lifting drive motor 20 is provided on the outer wall of the lifting connecting seat. The lifting drive motor drives the gear and rack lifting mechanism to move the lifting connecting seat up or down relative to the lifting column. The lifting connecting seat then drives the entire frame to move up or down through the connecting frame.

[0034] Furthermore, in this embodiment, the carrier system includes a carrier assembly and a conveying assembly. The carrier assembly has a carrier frame 9, on which a carrier roller track composed of several unpowered carrier rollers 10 is provided. Carrier wheels 11 are provided on the front and rear sides of the bottom of the carrier frame. A carrier track is also provided on the frame. The carrier wheels roll along the carrier track. A carrier connecting seat 12 is also provided at the bottom of the carrier frame. The conveying assembly includes two sets of carrier drive chain assemblies arranged in parallel front and rear. The carrier drive chain assemblies are mounted on the frame and placed below the carrier frame. The drive chain in the carrier drive chain assembly is also provided with a carrier connector 13. The carrier connector is connected to the carrier connecting seat 12 by bolts.

[0035] Furthermore, in this embodiment, the bottom and sides of the onboard connector are also provided with limiting rollers; the onboard transmission chain assembly includes an onboard transmission chain 14, a power sprocket, a tension sprocket, and an onboard drive servo motor 15, which drives the two onboard transmission chains to run synchronously through a synchronous output shaft.

[0036] Furthermore, the lever system in this embodiment includes two lever travel chains 22 and a lever travel track 21. One lever travel chain is driven by a lever chain travel servo motor 23. A lever seat 28 is fixedly connected to corresponding positions on each of the two lever travel chains. One lever seat has a limiting roller 31 at its bottom, which carries the lever seat along the corresponding lever travel track. A flip motor 29 is also mounted on this lever seat. The output end of the flip motor is connected to a flip shaft 30 via a gear assembly 26. A lever 25 is fixedly connected to the flip shaft. The lever is horizontally positioned above the carrier system and perpendicular to the running direction of the carrier system. A retainer 24 is also provided on the other lever seat, which holds the lever when it flips and falls. Furthermore, an infrared photoelectric sensor 27 is also provided on the lever seat corresponding to the flip shaft in this embodiment. This infrared photoelectric sensor is used to detect whether the lever has fallen into position.

[0037] Furthermore, in this embodiment, the electric gantry lifting baffle device includes a column gantry 40, with a double-headed lifting motor 42 installed at the top center of the column gantry. The output ends of the lifting motor are connected to two drive shafts 41 on each side. Each drive shaft corresponds to a set of chain lifting mechanisms 44. The two sets of chain lifting mechanisms achieve lifting and lowering under the drive of the lifting motor. Both sets of chain lifting mechanisms include lifting chains, and a lifting truss 46 connects the two lifting chains. The lifting truss moves up and down along the columns on both sides of the column gantry along with the lifting chains. Two horizontally arranged material-blocking electric cylinders 45 are installed in the middle of the lifting truss. A material-blocking plate 43 is connected to the front end of the piston rod of both material-blocking electric cylinders. Furthermore, in this invention, material-blocking rollers 39 are respectively installed on the inner sides of the columns on both sides of the column gantry. These material-blocking rollers are vertically arranged and can roll flexibly.

[0038] The above structure basically reflects the overall structure of the present invention. The concept of the present invention will be explained below in terms of its specific working principle.

[0039] The basic working principle and process of this invention:

[0040] When the truck arrives at the designated location for loading, the first step is to accurately align and dock the entire system of this invention with the truck bed. This is achieved as follows: three sets of flexible docking adjustment devices work in coordination. Based on the deviation between the frame and the truck bed, three electric cylinders are controlled on-site. In this invention, the motion connecting shaft is connected to the bottom of the frame by screws. Guide wheels are arranged on the side walls of the guide seat, and universal casters are installed at the bottom of the guide seat to roll in contact with the ground. The motion connecting shaft can move up and down like a piston inside the guide seat. When the main frame rises and falls, the motion connecting shaft rises and falls with the frame. When the three electric cylinders actuate, they apply lateral pushing force to the guide seat, which is transmitted to the frame through the motion connecting shaft, thereby adjusting the angle of the entire frame along with the various systems on it. In this invention, electric cylinder one, electric cylinder two, and electric cylinder three form three force driving points. Each set of electric cylinders is equipped with a pull rope encoder, and one set of heavy-duty universal casters is installed at each of the four corners of the frame. The extension and retraction of the three electric cylinders work together to drive the entire frame to make forward and backward translations and rotations within a certain range, thereby achieving docking and alignment adjustments with the truck bed.

[0041] After the alignment and adjustment are completed, the four sets of electric lifting devices move synchronously. Through the control of the lifting drive motor, the lifting column descends to the ground, and then lifts the entire frame in the opposite direction. The four heavy-duty casters are suspended off the ground, and the four disc seats are supported on the ground. Then the loading operation can begin.

[0042] In this embodiment, three sets of flexible docking adjustment devices are designed to work in coordination: one set at the front and two sets at the rear. The electric cylinders in the two rear sets are arranged in a V-shape, which facilitates angle adjustment of the entire frame, makes it easier to apply force in three directions, and facilitates movement and adjustment using the bottom swivel casters. The three sets of flexible docking adjustment devices in this invention are essentially for powerful telescopic and torsional docking angle adjustment. In actual operation, the offset angle of the frame is not very large, and only a small adjustment is needed. Therefore, this design is sufficient.

[0043] See appendix Figure 9 , Figure 10 After the above preparations are completed, the operators first place the pallet along with the goods on it onto the chain plate mechanism of this invention using a hoisting device. The chain plate mechanism transports the goods and pallets together to the waiting station on the subsequent carrier roller conveyor. When every two pallets placed side by side are delivered to the waiting station, the flipping motor drives the lever to flip down and lock it into the holder. At this time, the lever's travel chain starts, driving the lever to move the goods forward along the carrier roller conveyor until they reach the front end of the carrier roller conveyor. Following the above actions, the goods are stacked row by row on the carrier roller conveyor until a certain quantity is reached. At this time, the carrier plate system is activated. The onboard drive servo motor and onboard transmission chain in the system drive the entire onboard frame and the load-bearing roller conveyor to move forward to a certain depth in the truck bed. Then, the lifting motor in the electric gantry lifting baffle device is activated, lowering the lower lifting truss. The material blocking cylinder then extends the baffle plate forward a certain length to stop the goods, keeping them in place in the truck bed. Finally, the onboard drive servo motor is activated to retract the onboard frame and the load-bearing roller conveyor. This allows the rows of goods stacked in front, along with the pallets, to slide down and be stacked in the truck bed, realizing the docking and loading operation.

[0044] In the actual design, the front load-bearing roller conveyor of the plate frame is designed with a certain slope, which makes it easier to slide the cargo pallet off and place it in the carriage, allowing for a convenient natural sliding.

[0045] The following section explains the specific angle adjustments for the docking and alignment of the carrier board system:

[0046] After the truck bed is parked, it is often slightly tilted, which is unavoidable. However, in order for the conveying equipment to accurately deliver large palletized goods into the truck bed and stack them neatly, it is necessary to promptly align and adjust the conveying equipment with the truck bed to avoid any angular deviation. Otherwise, the pallets of goods being conveyed into the truck bed will easily become crooked, affecting loading efficiency and cargo safety.

[0047] During the actual adjustment, on-site, the three electric cylinders are driven to extend and retract by the controller or on-site manual controller. The extension and retraction strokes of the three electric cylinders are different. Through the extension and retraction of the electric cylinders, the guide seat moves back and forth or deflects at an angle. In turn, the guide seat forcibly drives the internal motion connecting shaft to twist at an angle, which in turn drives the heavy frame above to move back and forth or deflect at an angle. This achieves the alignment adjustment between the conveying equipment and the carriage. After the alignment is completed, the conveying equipment on the heavy frame can start to transport goods into the carriage.

[0048] In the aforementioned angle adjustment actions, the key angle adjustment is achieved by driving the guide seat with an electric cylinder, which in turn drives the motion connecting shaft to rotate. Moving the frame forward or backward requires the simultaneous action of three electric cylinders. The vertical extension / retraction movement between the motion connecting shaft and the guide seat in this invention is primarily due to the height adjustments required for the upper frame during actual use. To ensure the guide seat remains grounded, this feature is designed to be vertically extendable to prevent jamming. Furthermore, since both the heavy-duty frame and the guide seat are equipped with casters at the bottom, rotation is relatively flexible when adjusting the angle.

[0049] The actions of each part in this invention can be remotely controlled on-site, or automated and coordinated by a related PLC controller and a camera used for on-site operation.

Claims

1. A pure electric flexible docking loading system, comprising a frame, wherein the bottom of the frame is provided with four heavy-duty casters for support, characterized in that: Four sets of electric lifting devices are installed at the front and rear of the bottom surface of the frame. These four sets of electric lifting devices are paired up, with the two sets in the same group connected by a connecting frame to operate synchronously. A flexible docking adjustment device is located in the middle of the bottom of the frame, and two sets are located at the bottom of the front end. These three sets of flexible docking adjustment devices are used for aligning and adjusting the entire frame. An electric gantry lifting baffle device is installed at the rear end of the frame. A pallet system for carrying goods is installed on the frame, which can extend and retract along the length of the frame. Near the front end of the frame, a chain plate mechanism for receiving goods is also provided, which can transfer the received goods horizontally onto the pallet system. A lever system is also installed on the frame, which can move along the length of the frame and move the goods carried on the pallet system forward along with the pallet. The flexible docking adjustment devices described in the set have the same structure, each including an electric cylinder mounting base, an electric cylinder, and a pull rope encoder. The pull rope encoder is mounted on the electric cylinder to monitor the extension displacement or rotation angle of the electric cylinder. The front end of the electric cylinder is hinged to the electric cylinder mounting base, which is fixedly placed on the ground or platform. The tail end of the electric cylinder is hinged to a corresponding guide seat. The guide seat has a square cross-section. The tail end of one of the three electric cylinders located in the middle of the bottom of the frame is hinged to a guide seat, while the tail ends of the other two electric cylinders are hinged together to another guide seat. Each guide seat is hollow inside and runs vertically through. The bottom of the guide seat is equipped with universal casters, and guide wheels are provided on the side walls in the front, back, left, and right directions of the guide seat. A motion connecting shaft for vertical movement is inserted inside the guide seat. The cross-section of the motion connecting shaft is also square, and the upper end of the motion connecting shaft is connected to the bottom of the frame.

2. The pure electric flexible docking loading system according to claim 1, characterized in that: The electric lifting device has a lifting connecting seat, in which a lifting column is vertically installed. A disc seat is provided at the bottom of the lifting column. A gear and rack lifting mechanism is provided inside the lifting connecting seat. A lifting drive motor is provided on the outer wall of the lifting connecting seat. The lifting drive motor drives the gear and rack lifting mechanism, thereby causing the lifting connecting seat to rise or fall relative to the lifting column. The lifting connecting seat then drives the entire frame to rise or fall through the connecting frame.

3. The pure electric flexible docking loading system according to claim 1, characterized in that: The carrier system includes a carrier assembly and a conveying assembly. The carrier assembly has a carrier frame with a carrier roller track consisting of several unpowered carrier rollers. Carrier wheels are provided on the front and rear sides of the bottom of the carrier frame, and a carrier track is provided on the frame. The carrier wheels roll along the carrier track. A carrier connecting seat is provided at the bottom of the carrier frame. The conveying assembly includes two sets of carrier drive chain assemblies arranged in parallel front and rear. The carrier drive chain assemblies are mounted on the frame and located below the carrier frame. The drive chains in the carrier drive chain assemblies are provided with carrier connectors, which are connected to the carrier connecting seat by bolts.

4. The pure electric flexible docking loading system according to claim 3, characterized in that: The bottom and sides of the onboard connector are also provided with limiting rollers; the onboard transmission chain assembly includes an onboard transmission chain, a power sprocket, a tension sprocket, and an onboard drive servo motor, which drives the two onboard transmission chains to run synchronously through a synchronous output shaft.

5. The pure electric flexible docking loading system according to claim 1, characterized in that: The lever system includes two lever travel chains and one lever travel track. One lever travel chain is driven by a lever chain servo motor. Each of the two lever travel chains has a lever seat fixedly connected at a corresponding position. One lever seat has a limit roller at its bottom, which carries the lever seat along the corresponding lever travel track. The lever seat also has a flip motor. The output end of the flip motor is connected to a flip shaft through a gear assembly. A lever is fixedly connected to the flip shaft. The lever is horizontally positioned above the carrier system and perpendicular to the running direction of the carrier system. The other lever seat also has a retainer, which is placed in the lever when it flips and falls.

6. The pure electric flexible docking loading system according to claim 5, characterized in that: An infrared photoelectric sensor is also provided on the lever seat corresponding to the flip axis. This infrared photoelectric sensor is used to detect whether the lever is in position.

7. The pure electric flexible docking loading system according to claim 1, characterized in that: The electric gantry lifting baffle device includes a column gantry, with a double-headed lifting motor installed at the top center of the column gantry. The output end of the lifting motor is connected to a drive shaft on each side, and each drive shaft corresponds to a chain lifting mechanism. The two chain lifting mechanisms achieve lifting and lowering under the drive of the lifting motor. Both chain lifting mechanisms include lifting chains, and a lifting truss is connected between the two lifting chains. The lifting truss moves up and down along the columns on both sides of the column gantry together with the lifting chains. Two horizontally arranged material-blocking electric cylinders are installed in the middle of the lifting truss, and a material-blocking plate is connected to the front end of the piston rod of the two material-blocking electric cylinders.

8. The pure electric flexible docking loading system according to claim 7, characterized in that: The inner sides of the columns on both sides of the column gantry are respectively equipped with material-stopping rollers, which are arranged vertically and can roll flexibly.

9. The pure electric flexible docking loading system according to claim 1, characterized in that: The frame is a rectangular frame structure formed by assembling and welding square steel.

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