A loading and unloading system and working method for a ship container terminal

Abstract

The present invention discloses a loading and unloading system and a working method for a ship container terminal, which includes a spreader, a guiding device and a plurality of fixed platforms. The plurality of fixed platforms are installed on the deck of the ship. The top surface of the fixed platform is provided with a fixed groove adapted to the container. Fixed seats are arranged at both the left and right ends of the fixed platform. A connecting frame is slidably assembled on the top of the fixed seat. A reel and a motor are rotatably arranged in the fixed seat. The motor is in transmission connection with the reel to drive the reel to rotate. Wire wheels are arranged at both ends of the reel. A fixing rope is wound around the wire wheel. One end of the fixing rope is connected to the connecting frame. Twisting locks adapted to the corner fittings of the container are rotatably arranged on both sides of the end face of the connecting frame close to the fixed groove. The guiding device includes two sets of guiding mechanisms arranged symmetrically. Through the guiding mechanism, the present invention gradually and automatically corrects the horizontal offset during the descent of the spreader, realizes accurate positioning and improves the stacking efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of ship transportation, and specifically to a loading and unloading system and working method for a ship container terminal. Background Art

[0002] When a ship is engaged in ocean transportation, due to the large sea waves, the overall vibration of the ship will occur. If the containers are not firmly fixed, the containers may fall off, and in severe cases, the ship may capsize. Commonly used fixing machines are often manually operated by personnel to fix the containers. The fixing is rather cumbersome and prone to negligence. It is inconvenient during container loading and unloading. Moreover, when multiple containers are stacked, the upper container requires the operator to very skillfully use a crane to place it. During the lowering process, a traditional machine vision system is usually used for multiple position corrections to ensure the precise alignment and stacking of two containers. However, this positioning and correction link is cumbersome and time-consuming, resulting in an extended overall operation cycle. Summary of the Invention

[0003] The purpose of the present invention is to provide a loading and unloading system and working method for a ship container terminal to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A loading and unloading system for a ship container terminal includes a spreader, a guiding device, and a plurality of fixing platforms. The plurality of fixing platforms are installed on the deck of the ship. The top surface of the fixing platform is provided with a fixing groove adapted to the container. Fixing seats are arranged at both the left and right ends of the fixing platform. A connecting frame is slidably assembled on the top of the fixing seat. A drum and a motor are rotatably arranged in the fixing seat. The motor is in transmission connection with the drum to drive the drum to rotate. Line wheels are arranged at both ends of the drum. A fixing rope is wound around the line wheel. One end of the fixing rope is connected to the connecting frame. Twisting locks adapted to the corner fittings of the container are rotatably arranged on both sides of the end face of the connecting frame close to the fixing groove.

[0005] The guiding device includes two sets of guiding mechanisms arranged symmetrically. A fixing component matching the connecting frame is provided at its bottom. Power components are arranged on both sides at the bottom of the guiding mechanism. When the guiding mechanism is docked with the connecting frame, the power component is in transmission connection with the twisting lock to drive the twisting lock to rotate. Support frames and first telescopic cylinders are slidably assembled at both the left and right ends of the spreader. The first telescopic cylinder is used to drive the support frame to displace horizontally. During the descending process, the support frame contacts the guiding mechanism and slides along its guiding channel to complete guiding and positioning. A connecting component adapted to the guiding mechanism is arranged on the support frame, so that when the support frame displaces to the lower limit position, it can be connected to the guiding mechanism.

[0006] Further, the guiding mechanism includes two symmetrically arranged guiding frames and a mounting frame. The two guiding frames are respectively fixedly installed on both sides of the top end of the mounting frame. A guiding frame is arranged on the top of the guiding frame, and its structure is in a progressive contraction form from top to bottom. The guiding channel of the guiding frame and the guiding groove of the guiding frame form a continuous guiding channel. Guide balls are arranged at both ends of the support frame. During the descending process, the guide balls gradually adjust their movement trajectories through the action of the guiding grooves of the guiding frame and are finally accurately guided into the guiding channel of the guiding frame, thereby driving the container lifted by the spreader to be guided synchronously.

[0007] Further, electromagnets are embedded on both sides of the end face of the mounting frame close to the fixed groove. A power supply is arranged on the mounting frame, and the power supply is electrically connected to the electromagnets.

[0008] Further, the power assembly includes insertion blocks arranged on both sides of the bottom end of the mounting frame. A driving wheel is rotatably connected to the insertion block. Second motors are arranged on both sides of the mounting frame, and the second motors are in transmission connection with the driving wheels on the corresponding sides. Sockets adapted to the insertion blocks are opened on both sides of the top end of the connecting frame. A driven wheel is rotatably connected in the socket, and the rotating shaft of the driven wheel penetrates and extends to be connected to the twist lock on the corresponding side. When the insertion block is inserted into the socket, the driving wheel abuts against the driven wheel, thereby driving the driven wheel to rotate through the driving wheel.

[0009] Further, the fixing assembly includes a first anchoring seat arranged in the middle of the bottom end of the mounting frame. First clamping rods are slidably embedded at the left and right ends of the first anchoring seat. A first telescopic cylinder is arranged in the first anchoring seat. The end of the piston rod of the first telescopic cylinder is provided with a first support. First driving rods are hinged on both sides of the first support, and the other ends of the first driving rods are hinged to the inner ends of the first clamping rods on the corresponding sides, thereby driving the first clamping rods to perform lateral displacement through the first telescopic rod; A first clamping groove adapted to the first anchoring seat is opened in the middle of the top end of the connecting frame, and first clamping holes adapted to the first clamping rods are opened on both inner walls of the first clamping groove.

[0010] Further, the connecting component includes a second anchoring seat arranged in the middle of the bottom end of the support frame. Both the left and right ends of the second anchoring seat are slidably embedded with second clamping rods. A second telescopic cylinder is arranged in the second anchoring seat. The end of the piston rod of the second telescopic cylinder is provided with a second support. Both sides of the second support are hinged with second driving rods. The other end of the second driving rod is hinged with the inner end of the second clamping rod on the corresponding side, so as to drive the second clamping rod to perform a lateral displacement through the second telescopic rod; a limiting groove is formed in the inner wall of the guiding frame and a sliding rod is arranged in the limiting groove. A moving frame is connected between the two guiding frames, and the moving frame is slidably assembled on the sliding rod. A spring is sleeved on the sliding rod, and the spring is connected between the bottom of the moving frame and the bottom end of the limiting groove. A second clamping groove adapted to the second anchoring seat is formed in the middle of the top end of the moving frame. Second clamping holes adapted to the second clamping rods are formed in both inner walls of the second clamping groove.

[0011] Further, the structure of the spreader can refer to the existing container spreader. The present invention adds support frames that can be telescoped on both sides to the structure of the existing spreader.

[0012] Further, the fixing rope is a steel wire rope.

[0013] Further, the driving wheel is a gear or a metal friction wheel, and the driven wheel is a gear or a runner coated with a material with a high coefficient of friction.

[0014] The present invention also provides a working method for the above-mentioned loading and unloading system, including the following steps:

[0015] S1. Deploy a fixed platform on the ship deck;

[0016] S2. In the stage of loading containers onto the ship, install the spreader on the shore bridge crane, and fix the guiding mechanisms on the support frames on both sides of the spreader respectively through the connecting components; the spreader hoists the container to the designated fixed platform. While the container is lowered onto the fixed platform, the mounting frame is connected and fixed to the connecting frame through the fixing components. Then, the connecting components are disconnected from the guiding mechanisms, and the spreader releases the container to hoist the next container;

[0017] S3. When the next container is hoisted above the fixed platform, when the spreader descends, the guiding balls on its upper support frame slide down along the progressive guiding grooves at the top of the guiding frame, so as to eliminate the horizontal offset of the spreader and achieve positioning. Finally, the two containers are aligned and stacked;

[0018] S4. After stacking multiple containers in sequence, when stacking the final-layer container, the spreader is connected to the guiding mechanism through the connecting component, and then the spreader drives the guiding mechanism to rise. At the same time, the winch synchronously releases the fixing rope until the connecting frame rises to the top corner fitting of the uppermost container. The telescopic cylinder drives the support frame to displace inwards, so that the twist lock is inserted into the corner fitting. The power component drives the twist lock to rotate, making it enter the vertical locking state, and fixing the connecting frame to the container.

[0019] S5. Disconnect the fixing component from the connecting frame, and the spreader drives the guiding mechanism to move to the next fixing platform.

[0020] Further, it also includes: S6. During the stage of discharging containers from the ship, the twist lock can be unlocked by the staff, or the spreader can hoist the guiding mechanism and use the power component thereon to unlock it; when the twist lock is unlocked and leaves the corner fitting, the winch retracts the fixing rope, so that the connecting frame retracts back into the fixing seat again.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The guiding frame of the guiding mechanism adopts a top-down shrinking guide groove (geometric constraint), combined with the guiding ball at the end of the support frame, to gradually correct the horizontal offset during the lowering process of the spreader, realizing precise positioning. Compared with the traditional method relying on the vision system or manual calibration, this system only needs to operate the spreader to lower to complete precise positioning, improving the stacking efficiency.

[0023] 2. The design of the connecting frame and the fixing rope of the present invention locks and fixes the connecting frame to the container corner fitting through the spreader during the loading and unloading process, forming a flexible constraint on the top-layer container. When the ship sways, the fixing rope can buffer the impact force to prevent the container from shifting. At the same time, the twist lock provides rigid fixation to ensure stability, eliminating the need for manual fixation, saving time and effort.

[0024] 3. The independent modular design of the guiding mechanism, the connecting frame and the support frame of the present invention, and the use of the clamping rod and the clamping hole to achieve quick connection and separation. The same set of guiding mechanism can be transferred to different fixing platforms through the spreader, reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the loading and unloading system of the present invention;

[0026] Figure 2 is Figure 1 the partial enlarged view at A in

[0027] Figure 3 is the installation state structural diagram of the guiding device in the present invention;

[0028] Figure 4 is the front view of the lowering state of the loading and unloading system of the present invention;

[0029] Figure 5 Side view of the loading and unloading system of the present invention;

[0030] Figure 6 is Figure 5 Partial enlarged view at position B in

[0031] Figure 7 is Figure 5 Partial enlarged view at position C in

[0032] Figure 8 is Figure 5 Partial enlarged view at position D in

[0033] Figure 9 Schematic diagram of the magnetic attraction lifting state of the guiding device of the present invention;

[0034] Figure 10 Schematic diagram of the stacking and fixing of the container of the present invention.

[0035] In the figure, spreader - 1, fixed platform - 2, fixed groove - 3, fixed seat - 4, connecting frame - 5, reel - 6, fixed rope - 7, twist lock - 8, support frame - 9, guiding frame - 10, mounting frame - 11, guiding frame - 12, guiding ball - 13, electromagnet - 14, insertion block - 15, driving wheel - 16, second motor - 17, socket - 18, driven wheel - 19, first anchoring seat - 20, first clamping rod - 21, first telescopic cylinder - 22, first support - 23, first driving rod - 24, first clamping groove - 25, first clamping hole - 26, second anchoring seat - 27, limiting groove - 28, moving frame - 29, second clamping groove - 30, container - 31, second clamping rod - 32. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Such as Figures 1 to 10As shown in the figure, a loading and unloading system for a ship container terminal includes a spreader 1, a guiding device, and a plurality of fixed platforms 2. The plurality of fixed platforms 2 are installed on the deck of the ship. The top surface of the fixed platform 2 is provided with a fixed groove 3 adapted to the container 31. Fixed seats 4 are arranged at both the left and right ends of the fixed platform 2. A connecting frame 5 is slidably assembled on the top of the fixed seat 4. A drum 6 and a motor are rotatably arranged in the fixed seat 4. The motor is in transmission connection with the drum 6 to drive the drum 6 to rotate. Wire wheels are arranged at both ends of the drum 6. A fixing rope 7 is wound around the wire wheel. One end of the fixing rope 7 is connected to the connecting frame 5. Twisting locks 8 adapted to the corner fittings of the container 31 are rotatably arranged on both sides of the end face of the connecting frame 5 close to the fixed groove 3.

[0038] The guiding device includes two sets of guiding mechanisms arranged symmetrically. A fixing component matching the connecting frame 5 is arranged at the bottom thereof, and power components are arranged on both sides of the bottom of the guiding mechanism. When the guiding mechanism is docked with the connecting frame 5, the power component is in transmission connection with the twisting lock 8 to drive the twisting lock 8 to rotate. Support frames 9 and telescopic cylinders are slidably assembled at both the left and right ends of the spreader 1. The telescopic cylinder is used to drive the support frame 9 to displace horizontally. During the descending process, the support frame 9 contacts the guiding mechanism and slides along its guiding channel to complete guiding and positioning. A connecting component adapted to the guiding mechanism is arranged on the support frame 9, so that when the support frame 9 displaces to the lower limit position, it can be connected to the guiding mechanism.

[0039] In this embodiment, the guiding mechanism includes two guiding frames 10 and a mounting frame 11 arranged symmetrically. The two guiding frames 10 are respectively fixedly installed on both sides of the top end of the mounting frame 11. A guiding frame 12 is arranged at the top of the guiding frame 10, and its structure is gradually contracted from top to bottom. The guiding channel of the guiding frame 10 and the guiding groove of the guiding frame 12 form a continuous guiding channel. Guide balls 13 are arranged at both ends of the support frame 9. During the descending process of the guide balls 13, the movement track is gradually adjusted through the action of the guiding groove of the guiding frame 12, and finally the guide balls are accurately guided into the guiding channel of the guiding frame 10, so as to drive the container 31 hoisted on the spreader 1 to be guided synchronously.

[0040] Through the design of the contracting guide groove at the top of the guiding frame 10 and the continuous channel of the guiding frame 12, the guide balls 13 at the end of the support frame 9 of the spreader 1 are gradually adjusted for horizontal offset under geometric constraints during the falling process, realizing millimeter-level positioning accuracy. Without a vision system, the staff only needs to operate the spreader 1 to descend, and the position of the container 31 can be automatically adjusted. The subsequent layer of containers 31 is automatically calibrated and stacked through the guiding mechanism.

[0041] In this embodiment, electromagnets 14 are embedded on both sides of the end face of the mounting bracket 11 close to the fixing groove 3. A power supply is arranged on the mounting bracket 11, and the power supply is electrically connected to the electromagnets 14. When the height of the stacked containers 31 exceeds the length of the guiding frame 10, after the spreader 1 finishes stacking the containers 31 on this layer, the support frame 9 and the mounting bracket 11 are connected through the connecting component, and then the spreader 1 rises vertically, thereby driving the mounting bracket 11 to rise vertically to the top layer of the container 31. Then, the support frame 9 moves inward under the action of the telescopic cylinder, so that the electromagnets 14 on the mounting bracket 11 are attached to the surface of the container 31. Then, the electromagnets 14 are energized to magnetically adsorb and fix on the container 31. At this time, the guiding frame 10 on the mounting bracket 11 continues to extend out of the top layer of the container 31 due to position adjustment, and can continue to guide the subsequent lifting operation.

[0042] In this embodiment, the power assembly includes insertion blocks 15 arranged on both sides of the bottom end of the mounting bracket 11. Driving wheels 16 are rotatably connected to the insertion blocks 15. Second motors 17 are arranged on both sides of the mounting bracket 11, and the second motors 17 are in transmission connection with the driving wheels 16 on the corresponding side. Sockets 18 adapted to the insertion blocks 15 are provided on both sides of the top end of the connecting frame 5. Driven wheels 19 are rotatably connected in the sockets 18, and the rotating shafts of the driven wheels 19 extend through and are connected to the twist locks 8 on the corresponding side. When the insertion blocks 15 are inserted into the sockets 18, the driving wheels 16 are in contact with the driven wheels 19, so as to drive the driven wheels 19 to rotate through the driving wheels 16.

[0043] In this embodiment, the fixing assembly includes a first anchoring seat 20 arranged in the middle of the bottom end of the mounting bracket 11. First clamping rods 21 are slidably embedded at the left and right ends of the first anchoring seat 20. A first telescopic cylinder 22 is arranged in the first anchoring seat 20. A first support 23 is arranged at the end of the piston rod of the first telescopic cylinder 22. First driving rods 24 are hinged on both sides of the first support 23, and the other ends of the first driving rods 24 are hinged to the inner ends of the first clamping rods 21 on the corresponding side, so as to drive the first clamping rods 21 to perform lateral displacement through the first telescopic rod; a first clamping groove 25 adapted to the first anchoring seat 20 is provided in the middle of the top end of the connecting frame 5, and first clamping holes 26 adapted to the first clamping rods 21 are provided on both inner walls of the first clamping groove 25;

[0044] When the mounting bracket 11 and the connecting frame 5 are docked, the first anchoring seat 20 will be inserted into the first clamping groove 25. If it is necessary to fixedly connect the two, the piston rod of the first telescopic cylinder 22 is controlled to extend, so as to push the first clamping rods 21 on both sides to extend through the first driving rods 24 and extend into the first clamping holes 26, thus completing the clamping; on the contrary, when disconnecting the connection, the piston rod of the first telescopic cylinder 22 is retracted, and the first clamping rods 21 can be driven to leave the first clamping holes 26.

[0045] In this embodiment, the connecting assembly includes a second anchoring seat 27 disposed in the middle of the bottom end of the support frame 9. Second clamping rods 32 are slidably embedded at both the left and right ends of the second anchoring seat 27. A second telescopic cylinder is arranged in the second anchoring seat 27. The end of the piston rod of the second telescopic cylinder is provided with a second support. Second driving rods are hinged to both sides of the second support. The other end of the second driving rod is hinged to the inner end of the corresponding second clamping rod 32 on one side, so as to drive the second clamping rod 32 to perform a lateral displacement through the second telescopic rod; a limiting groove 28 is formed in the inner wall of the guiding frame 10. And a sliding rod is arranged in the limiting groove 28. A moving frame 29 is connected between the two guiding frames 10. And the moving frame 29 is slidably assembled on the sliding rod. A spring is sleeved on the sliding rod. The spring is connected between the bottom of the moving frame 29 and the bottom end of the limiting groove 28. A second clamping groove 30 adapted to the second anchoring seat 27 is formed in the middle of the top end of the moving frame 29. Second clamping holes adapted to the second clamping rods 32 are formed in both inner walls of the second clamping groove 30;

[0046] Since the length of the guiding frame 10 is greater than the height of the container 31, when the spreader 1 stacks the containers 31, the support frame 9 will contact the moving frame 29. At this time, the liftable design of the moving frame 29 will not affect the lifting operation of the spreader 1. And under the resilience of the spring, when the spreader 1 leaves the guiding frame 10, the moving frame 29 will automatically reset to the top of the limiting groove 28. When the spreader 1 needs to be connected to the guiding mechanism, the support frame 9 and the moving frame 29 are connected into one body through the first clamping rod 21. At this time, the guiding mechanism can be driven to move by the movement of the spreader 1.

[0047] This embodiment also discloses a working method of the above loading and unloading system, including the following steps:

[0048] S1. Deploy the fixed platform 2 on the ship deck;

[0049] S2. During the stage of loading the container 31 onto the ship, install the spreader 1 on the shore bridge crane, and fix the guiding mechanisms to the support frames 9 on both sides of the spreader 1 respectively through the connecting assembly; the spreader 1 hoists the container 31 to the designated fixed platform 2. While the container 31 is lowered onto the fixed platform 2, the mounting frame 11 is fixedly connected to the connecting frame 5 through the fixing assembly. Then the connecting assembly releases the connection with the guiding mechanism, and the spreader 1 releases the container 31 to hoist the next container 31;

[0050] S3. When the next container 31 is hoisted above the fixed platform 2, when the spreader 1 descends, the guiding balls 13 on its support frame 9 slide down along the progressive guiding groove at the top of the guiding frame 10, so as to eliminate the horizontal offset of the spreader 1 and achieve positioning. Finally, the two containers 31 are aligned and stacked;

[0051] S4. After stacking multiple containers 31 in sequence, when stacking the final-layer container 31, the spreader 1 is connected to the guiding mechanism through the connecting component, and then the spreader 1 drives the guiding mechanism to rise. At the same time, the winch drum 6 synchronously releases the fixing rope 7 until the connecting frame 5 rises to the top corner fitting of the uppermost container 31. The telescopic cylinder drives the support frame 9 to displace inward, so that the twist lock 8 is inserted into the corner fitting. The power component drives the twist lock 8 to rotate, making it enter the vertical locking state and fixing the connecting frame 5 to the container 31. The twist lock corner fitting mechanism in the prior art can be used to connect between the containers 31, and then the motor is used to tighten the fixing rope 7 to fix and restrain the top-layer container 31, thereby preventing the container 31 from shaking caused by the ship's swaying.

[0052] S5. Disconnect the fixing component from the connecting frame 5, and the spreader 1 drives the guiding mechanism to move to the next fixing platform 2;

[0053] S6. In the stage of discharging the container 31 from the ship, the staff can unlock the twist lock 8, or the spreader 1 can lift and transport the guiding mechanism and use the power component thereon to unlock it; when the twist lock 8 is unlocked and leaves the corner fitting, the winch drum 6 retracts the fixing rope 7, so that the connecting frame 5 retracts back into the fixing seat 4 again.

[0054] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A loading and unloading system for a ship container terminal, characterized in that: It includes a spreader, a guiding device and several fixed platforms. The several fixed platforms are installed on the deck of a ship. The top surface of the fixed platform is provided with a fixing groove adapted to a container. Fixed seats are arranged at both the left and right ends of the fixed platform. A connecting frame is slidably assembled on the top of the fixed seat. A reel and a motor are rotatably arranged in the fixed seat. The motor is in transmission connection with the reel to drive the reel to rotate. Line wheels are arranged at both ends of the reel. A fixing rope is wound around the line wheel. One end of the fixing rope is connected to the connecting frame. Twisting locks adapted to the corner fittings of the container are rotatably arranged on both sides of the end face of the connecting frame close to the fixing groove. The guiding device includes two groups of guiding mechanisms arranged symmetrically. A fixing component matching the connecting frame is arranged at the bottom thereof. Power components are arranged on both sides at the bottom of the guiding mechanism. When the guiding mechanism is docked with the connecting frame, the power component is in transmission connection with the twisting lock to drive the twisting lock to rotate. Support frames and telescopic cylinders are slidably assembled at both the left and right ends of the spreader. The telescopic cylinder is used to drive the support frame to displace horizontally. During the descending process, the support frame contacts the guiding mechanism and slides along its guiding channel to complete guiding and positioning. A connecting component adapted to the guiding mechanism is arranged on the support frame. Thus, when the support frame displaces to the lower limit position, it can be connected to the guiding mechanism. The guiding mechanism includes two guiding frames and a mounting frame arranged symmetrically. The two guiding frames are respectively fixedly installed on both sides of the top end of the mounting frame. A guiding frame is arranged at the top of the guiding frame. Its structure is gradually contracted from top to bottom. The guiding channel of the guiding frame and the guiding groove of the guiding frame form a continuous guiding channel. Guide balls are arranged at both ends of the support frame. During the descending process, the guide balls gradually adjust the movement track through the action of the guiding groove of the guiding frame and are finally accurately guided into the guiding channel of the guiding frame, thereby driving the container hoisted on the spreader to be guided synchronously. Electromagnets are embedded on both sides of the end face of the mounting frame close to the fixing groove. A power supply is arranged on the mounting frame. The power supply is electrically connected to the electromagnet. When the height of the stacked containers exceeds the length of the guiding frame, the electromagnet on the mounting frame is attached to the surface of the container. At this time, the guiding frame on the mounting frame is adjusted in position, so as to continue to extend out of the top-layer container and can continue to guide the subsequent lifting operation.

2. The loading and unloading system of a ship container terminal according to claim 1, wherein: The power component includes insertion blocks arranged on both sides of the bottom end of the mounting frame. A driving wheel is rotatably connected to the insertion block. Second motors are arranged on both sides of the mounting frame. The second motor is in transmission connection with the driving wheel on the corresponding side. Sockets adapted to the insertion blocks are opened on both sides of the top end of the connecting frame. A driven wheel is rotatably connected in the socket. And the rotating shaft of the driven wheel penetrates and extends to be connected to the twisting lock on the corresponding side. When the insertion block is inserted into the socket, the driving wheel abuts against the driven wheel, so as to drive the driven wheel to rotate through the driving wheel.

3. The loading and unloading system of a ship container terminal according to claim 1, wherein: The fixing component includes a first anchoring seat arranged in the middle of the bottom end of the mounting frame. Both the left and right ends of the first anchoring seat are slidably embedded with first clamping rods. A first telescopic cylinder is arranged in the first anchoring seat. The end of the piston rod of the first telescopic cylinder is provided with a first support seat. Both sides of the first support seat are hinged with first driving rods. The other ends of the first driving rods are hinged with the inner ends of the first clamping rods on the corresponding sides, so as to drive the first clamping rods to perform lateral displacement through the first telescopic rod. A first clamping groove adapted to the first anchoring seat is formed in the middle of the top end of the connecting frame. First clamping holes adapted to the first clamping rods are formed in both inner walls of the first clamping groove.

4. A loading and unloading system for a ship container terminal according to claim 1, characterized in that: The connecting component includes a second anchoring seat arranged in the middle of the bottom end of the support frame. Both the left and right ends of the second anchoring seat are slidably embedded with second clamping rods. A second telescopic cylinder is arranged in the second anchoring seat. The end of the piston rod of the second telescopic cylinder is provided with a second support seat. Both sides of the second support seat are hinged with second driving rods. The other ends of the second driving rods are hinged with the inner ends of the second clamping rods on the corresponding sides, so as to drive the second clamping rods to perform lateral displacement through the second telescopic rod. A limiting groove is formed in the inner wall of the guiding frame, and a sliding rod is arranged in the limiting groove. A moving frame is connected between the two guiding frames, and the moving frame is slidably assembled on the sliding rod. A spring is sleeved on the sliding rod, and the spring is connected between the bottom of the moving frame and the bottom end of the limiting groove. A second clamping groove adapted to the second anchoring seat is formed in the middle of the top end of the moving frame. Second clamping holes adapted to the second clamping rods are formed in both inner walls of the second clamping groove.

5. A working method of a loading and unloading system for a ship container terminal as described in claim 4, characterized in that, It includes the following steps: S1. Deploy a fixed platform on the ship deck. S2. In the stage of loading containers onto the ship, install a spreader on the quay crane, and fix the guiding mechanisms on the support frames on both sides of the spreader through the connecting component respectively. The spreader hoists the container to the designated fixed platform. While the container is lowered onto the fixed platform, the mounting frame is connected and fixed to the connecting frame through the fixing component. Then, the connecting component is disconnected from the guiding mechanism, and the spreader releases the container and goes to hoist the next container. S3. When the next container is hoisted above the fixed platform, when the spreader descends, the guiding balls on the upper support frame thereof slide down along the progressive guiding groove at the top of the guiding frame, so as to eliminate the horizontal offset of the spreader and achieve positioning. Finally, the two containers are aligned and stacked. S4. After multiple containers are stacked in sequence, when stacking the final layer of containers, the spreader is connected to the guiding mechanism through the connecting component. Then, the spreader drives the guiding mechanism to rise, and at the same time, the winch synchronously releases the fixing rope until the connecting frame rises to the top corner fitting of the topmost container. The telescopic cylinder drives the support frame to displace inward, so that the twist lock is inserted into the corner fitting. The power component drives the twist lock to rotate, so that it enters the vertical locking state and fixes the connecting frame to the container. S5. Disconnect the fixing component from the connecting frame, and the spreader drives the guiding mechanism to move to the next fixed platform.

6. The working method according to claim 5, characterized in that, It also includes: S6. During the container ship unloading stage, the twist lock can be unlocked by the staff or by the spreader lifting and guiding mechanism using the power component thereon; When the twist lock is unlocked and separated from the corner fitting, the winch retrieves the fixing rope, thereby retracting the connecting frame back into the fixing seat.

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