Deflection self-adaptive correction device for container quay crane lifting appliance

Abstract

The invention relates to the technical field of quay crane lifting appliances, in particular to a container quay crane lifting appliance deflection self-adaptive correction device which comprises a lifting box, and steel wire ropes are fixedly connected to the four corners of the bottom of the lifting box; the lifting appliance comprises a lifting appliance connecting plate, a rotating mechanism is fixedly connected to the bottom end of the lifting appliance connecting plate, a supporting frame is fixedly connected to the bottom end of the rotating mechanism, a lifting appliance frame is fixedly connected to the bottom end of the supporting frame, and first correction mechanisms are fixedly connected to the outer walls of the four corners of the lifting appliance frame. A wind direction and wind speed sensing array (comprising a wind wheel, a magnetic plate and a copper rod) arranged on a lifting appliance connecting plate is used for detecting the magnitude and the direction of environmental wind power in real time, and the wind speed is converted into a current signal by utilizing an electromagnetic induction principle. The PLC analyzes the wind direction according to space current distribution, starts the high-pressure jet pump on the downwind side in advance to resist wind power, and dynamically adjusts the jet mode (such as a stable mode or a pulse mode) according to the wind speed, so that active intervention is carried out before deflection occurs.

Description

Technical Field

[0001] This invention relates to the field of quay crane spreader technology, and more specifically to a container quay crane spreader sway adaptive correction device. Background Technology

[0002] With the upgrading of port automation, remote control systems for port container cranes have gradually become widespread. These systems enable unmanned or semi-unmanned operation of spreaders through remote control consoles, which places higher demands on the stability and positioning accuracy of spreader operation. As the core loading and unloading equipment in ports, container quay cranes are often affected by external factors such as wind and the inertia of trolley starting and stopping during operation, which can cause swaying. Excessive swaying not only reduces operating efficiency and affects positioning accuracy, but may also cause container shaking, endangering operational safety.

[0003] However, existing correction devices mostly focus on passive response after yaw occurs, lacking consideration for factors such as wind force. The inability to proactively perceive and predict external interference leads to a lag in correction. Furthermore, traditional equipment... When dealing with continuous or sudden wind forces, the correction mode is often too simplistic, making it difficult to achieve rapid and accurate correction. Adaptive dynamic stability control has limited effectiveness in correcting deviations, especially under complex operating conditions, which restricts the operation of quay cranes. Further improvements in business efficiency and safety. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a container quay crane spreader sway adaptive correction device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a container quay crane spreader sway adaptive correction device, comprising: The lifting box has steel wire ropes fixedly connected to its four bottom corners; A lifting device connecting plate, a rotating mechanism is fixedly connected to the bottom end of the lifting device connecting plate, a support frame is fixedly connected to the bottom end of the rotating mechanism, a lifting device frame is fixedly connected to the bottom end of the support frame, and a first correction mechanism is fixedly connected to the outer walls of the four corners of the lifting device frame. The first correction mechanism includes a mounting shell fixedly connected at the four corners of the lifting frame. The outer wall of the mounting shell has a moving opening. The inner bottom wall of the mounting shell is fixedly connected to a first motor. The output end of the first motor is fixedly connected to a high-pressure jet pump. The detection mechanism includes a laser emitter installed on the opposite side of the lifting box and the lifting device connection plate. The laser emitter is electrically connected to a PLC controller and forms a first detection loop.

[0006] Preferably, the detection mechanism further includes four mounting boxes fixedly connected to the top of the lifting device connecting plate. A rotating rod is rotatably connected to the inner wall of the mounting box. The other end of the rotating rod rotates to pass through the top of the mounting box and is fixedly connected to a fan wheel. Two symmetrical N-level magnetic plates and S-level magnetic plates are fixedly connected to the inner wall of the mounting box. A copper rod is fixedly connected to the outer wall of the rotating rod inside the mounting box. The copper rod rotates between the N-level magnetic plates and the S-level magnetic plates to cut magnetic field lines. A current detector is electrically connected to the copper rod. The current detector is electrically connected to the PLC controller and forms a second detection circuit.

[0007] Preferably, the top of the lifting device connecting plate is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected to a third motor, the output end of the third motor is fixedly connected to a first threaded rod, the outer wall of the first threaded rod is threaded with a first threaded block, the top of the first threaded block is fixedly connected to an extension plate, the bottom end of the first threaded block is fixedly connected to a first conductive plate, the inner bottom wall of the sliding groove is fixedly connected to a first resistance plate, the top of the first conductive plate and the top of the first resistance plate are in sliding contact, and the first resistance plate and the first conductive plate constitute a first sliding rheostat.

[0008] Preferably, the top end of the extension plate is fixedly connected to two symmetrical fixed plates, one of which is fixedly connected to a fourth motor on its outer wall, and the output end of the fourth motor is fixedly connected to a second threaded rod. A limit rod is fixedly connected between the two fixed plates, and a second threaded block is threadedly fitted on the outer wall of the second threaded rod. The second threaded block is slidably penetrated by the limit rod. The top end of the extension plate is fixedly connected to a second resistance plate, and the bottom end of the second threaded block is fixedly connected to a second conductive plate. The second conductive plate and the second resistance plate constitute a second sliding rheostat. A fixed cylinder is fixedly connected to the top of the second threaded block. An arc-shaped annular frame is fixedly connected to the inner wall of the fixed cylinder. A spherical cap is rotatably connected to the inner wall of the annular frame. A connecting rod is fixedly connected to the bottom of the spherical cap. A counterweight ball is fixedly connected to the bottom of the connecting rod. A laser receiver is fixedly connected to the top plane of the spherical cap. The laser receiver, the first sliding rheostat, the second sliding rheostat, and the PLC controller are electrically connected to form a third detection circuit.

[0009] Preferably, the first calibration mechanism further includes a jet pipe fixedly connected to the output end of the high-pressure jet pump, a rotating port opened at the top of the mounting housing, an exhaust pipe fixedly connected to the exhaust end of the high-pressure jet pump, and the exhaust pipe rotating within the rotating port. The high-pressure jet pump is electrically connected to the PLC controller and forms the first calibration circuit.

[0010] Preferably, mounting heads are fixedly connected to the top four corners of the lifting device connecting plate, and a pulley housing is fixedly connected to the top of the mounting head. A lifting pulley is rotatably connected to the inner wall of the pulley housing, and multiple wire ropes are respectively wound around the outer wall of the lifting pulley.

[0011] Preferably, it further includes a second correction mechanism, which includes multiple support plates fixedly connected to the inner wall of the lifting box. Each support plate is rotatably connected to a winding roller on one side facing the inside of the lifting box, and the other end of the winding roller is rotatably connected to the inner wall of the lifting box. A second motor is fixedly connected to the outer wall of the support plate. The output end of the second motor is fixedly connected to each winding roller. The second motor is electrically connected to the PLC controller and forms a second correction circuit.

[0012] Preferably, the bottom end of the lifting box is provided with multiple sliding holes, and the other end of each wire rope passes through each sliding hole and is fixed to the outer wall of the winding roller.

[0013] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. A wind direction and speed sensing array (including a wind turbine, magnetic plate, and copper rod) installed on the spreader's connecting plate detects the magnitude and direction of ambient wind in real time, and converts the wind speed into a current signal using the principle of electromagnetic induction. The PLC controller analyzes the wind direction based on the spatial current distribution, activates the downwind high-pressure jet pump in advance to counteract the wind force, and dynamically adjusts the jet mode (such as a steady mode or a pulse mode) according to the wind speed, thereby actively intervening before swaying occurs and significantly reducing the interference of external wind force on the spreader.

[0014] 2. A first detection loop is formed by a laser transmitter and a laser receiver, which, combined with first and second sliding rheostats, monitors the sway direction and offset of the spreader in real time. When sway occurs, the PLC controller dynamically coordinates the high-pressure jet mechanism (instant reverse thrust) and the wire rope retraction mechanism (adjusting the spreader's attitude to restore it using gravity) based on the detection results. For different degrees of offset (e.g., small, medium, large offset) and wind conditions, the system adaptively switches the jet intensity and wire rope retraction strategy to achieve rapid and accurate multi-mode collaborative correction, effectively coping with complex working conditions such as continuous or sudden wind changes.

[0015] 3. Upon detecting sway, the system adjusts the wire rope length by controlling the take-up rollers, artificially creating a tilt in the spreader (e.g., raising the right side and lowering the left side when swaying to the left). The gravitational torque generated by the shift in the center of gravity drives the spreader back to its original position. Simultaneously, the directional thrust of the high-pressure jet propulsion creates a synergistic effect of "instantaneous countermeasure + fundamental correction." This composite correction strategy overcomes the limitations of traditional single-mode methods. Especially in strong winds or large sway conditions, the combined effect of maximum jet power and rapid wire rope take-up and release ensures dynamic stability of the spreader, improving operational safety and efficiency.

[0016] Summary: Compared with existing correction devices, this device achieves forward sensing and active suppression through a wind-sensing array, reducing sway occurrence; it improves response speed and adaptability to complex working conditions by combining laser and sliding rheostat multi-channel detection with jet and wire rope coordinated correction; and it enhances stability by utilizing the composite control of gravity torque and jet thrust, ultimately achieving efficient and adaptive quay crane operation control. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional structural diagram of the lifting box of the present invention; Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the mounting shell of the present invention; Figure 5 This is a three-dimensional cross-sectional structural diagram of the mounting box of the present invention; Figure 6 This is a three-dimensional structural diagram of the lifting device connection part of the present invention; Figure 7 This is a three-dimensional cross-sectional view of the fixed cylinder structure of the present invention.

[0019] Reference numerals: 1. Lifting box; 2. Wire rope; 3. Lifting device connecting plate; 4. Rotating mechanism; 5. Support frame; 6. Lifting device frame; 7. First alignment mechanism; 71. Mounting housing; 72. Moving port; 73. First motor; 74. High-pressure jet pump; 75. Jet pipe; 76. Rotating port; 77. Exhaust pipe; 78. Mounting head; 79. Pulley housing; 710. Lifting pulley; 8. Second alignment mechanism; 81. Support plate; 82. Winding roller; 83. Second motor; 84. Sliding hole; 9. Detection mechanism; 91. Laser emitter; 92. Mounting box; 93. Rotating rod; 94. Air... 95. Wheel; 96. N-grade magnetic plate; 97. S-grade magnetic plate; 98. Copper rod; 99. Sliding groove; 90. Third motor; 910. First threaded rod; 911. First threaded block; 912. Extension plate; 913. First conductive plate; 914. First resistance plate; 915. Fixing plate; 916. Fourth motor; 917. Second threaded rod; 918. Limiting rod; 919. Second threaded block; 920. Second resistance plate; 921. Second conductive plate; 922. Fixing cylinder; 923. Annular frame; 924. Spherical notch; 925. Laser receiver; 926. Connecting rod; 927. Counterweight ball. Detailed Implementation

[0020] 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments.

[0022] Example: Refer to Figures 1 to 7 An adaptive correction device for the sway of a container quay crane spreader, comprising: The lifting box 1 has steel wire ropes 2 fixedly connected to the four corners of its bottom. The lifting device connecting plate 3 has a rotating mechanism 4 fixedly connected to its bottom end, a support frame 5 fixedly connected to its bottom end, a lifting device frame 6 fixedly connected to its bottom end, and a first correction mechanism 7 fixedly connected to the outer walls of the four corners of the lifting device frame 6. The first correction mechanism 7 includes a mounting shell 71 fixedly connected at the four corners of the lifting frame 6. The outer wall of the mounting shell 71 has a moving opening 72. The inner bottom wall of the mounting shell 71 is fixedly connected to a first motor 73. The output end of the first motor 73 is fixedly connected to a high-pressure jet pump 74. The detection mechanism 9 includes a laser emitter 91 installed on the opposite side of the lifting box 1 and the lifting device connecting plate 3. The laser emitter 91 is electrically connected to a PLC controller and forms the first detection circuit.

[0023] The detection mechanism 9 also includes four mounting boxes 92 fixedly connected to the top of the lifting plate 3. A rotating rod 93 is rotatably connected to the inner wall of the mounting box 92. The other end of the rotating rod 93 rotates to pass through the top of the mounting box 92 and is fixedly connected to a fan wheel 94. Two symmetrical N-level magnetic plates 95 and S-level magnetic plates 96 are fixedly connected to the inner wall of the mounting box 92. A copper rod 97 is fixedly connected to the outer wall of the rotating rod 93 inside the mounting box 92. The copper rod 97 rotates between the N-level magnetic plates 95 and S-level magnetic plates 96 to cut magnetic field lines. The copper rod 97 is electrically connected to a current detector. The current detector is electrically connected to the PLC controller and forms a second detection circuit.

[0024] The top of the lifting device connecting plate 3 is provided with a sliding groove 98. A third motor 99 is fixedly connected to the inner wall of the sliding groove 98. A first threaded rod 910 is fixedly connected to the output end of the third motor 99. A first threaded block 911 is threadedly fitted on the outer wall of the first threaded rod 910. An extension plate 912 is fixedly connected to the top of the first threaded block 911. A first conductive plate 913 is fixedly connected to the bottom end of the first threaded block 911. A first resistance plate 914 is fixedly connected to the inner bottom wall of the sliding groove 98. The first conductive plate 913 and the top of the first resistance plate 914 slide in contact. The first resistance plate 914 and the first conductive plate 913 constitute a first sliding rheostat.

[0025] The top of the extension plate 912 is fixedly connected to two symmetrical fixed plates 915. The outer wall of one of the fixed plates 915 is fixedly connected to a fourth motor 916. The output end of the fourth motor 916 is fixedly connected to a second threaded rod 917. A limit rod 918 is fixedly connected between the two fixed plates 915. A second threaded block 919 is threadedly sleeved on the outer wall of the second threaded rod 917. The second threaded block 919 is slidably penetrated by the limit rod 918. The top of the extension plate 912 is fixedly connected to a second resistance plate 920. The bottom end of the second threaded block 919 is fixedly connected to a second conductive plate 921. The second conductive plate 921 and the second resistance plate 920 constitute a second sliding rheostat. A fixed cylinder 922 is fixedly connected to the top of the second threaded block 919. An arc-shaped annular frame 923 is fixedly connected to the inner wall of the fixed cylinder 922. A spherical notch 924 is rotatably connected to the inner wall of the annular frame 923. A connecting rod 926 is fixedly connected to the bottom of the spherical notch 924. A counterweight ball 927 is fixedly connected to the bottom of the connecting rod 926. A laser receiver 925 is fixedly connected to the top plane of the spherical notch 924. The laser receiver 925, the first sliding rheostat, the second sliding rheostat, and the PLC controller are electrically connected to form a third detection circuit.

[0026] The first calibration mechanism 7 also includes a jet pipe 75 fixedly connected to the output end of the high-pressure jet pump 74, a rotating port 76 opened at the top of the mounting housing 71, an exhaust pipe 77 fixedly connected to the exhaust end of the high-pressure jet pump 74, and the exhaust pipe 77 rotates within the rotating port 76. The high-pressure jet pump 74 is electrically connected to the PLC controller and forms the first calibration circuit.

[0027] The top four corners of the lifting device connecting plate 3 are fixedly connected to the mounting head 78, the top of the mounting head 78 is fixedly connected to the pulley housing 79, the inner wall of the pulley housing 79 is rotatably connected to the lifting pulley 710, and multiple steel wire ropes 2 are respectively wound around the outer wall of the lifting pulley 710.

[0028] It also includes a second correction mechanism 8, which includes multiple support plates 81 fixedly connected to the inner wall of the lifting box 1. Each support plate 81 is rotatably connected to a winding roller 82 on the side facing the inside of the lifting box 1, and the other end of the winding roller 82 is rotatably connected to the inner wall of the lifting box 1. A second motor 83 is fixedly connected to the outer wall of the support plate 81. The output end of the second motor 83 is fixedly connected to each winding roller 82. The second motor 83 is electrically connected to the PLC controller and forms a second correction circuit.

[0029] The bottom of the lifting box 1 is provided with multiple sliding holes 84, and the other end of each wire rope 2 passes through each sliding hole 84 and is fixed to the outer wall of the winding roller 82.

[0030] The working principle of this invention is as follows: During container handling operations by the quay crane, the spreader frame 6 is connected to the upper lifting box 1 via steel wire rope 2. The spreader connecting plate 3 serves as a key connecting component, and its bottom end is connected to the support frame 5 and the spreader frame 6 via a rotating mechanism 4. When the spreader and container sway under the influence of external factors such as wind force and motion inertia, this system monitors the sway status in real time through the integrated multi-channel detection mechanism 9, and drives the corresponding correction mechanism based on the detection results to achieve adaptive correction, thereby maintaining the dynamic stability of the spreader and container.

[0031] The system's forward-looking sensing function is achieved by a planar wind direction and speed sensing array mounted on top of the hanger connection plate 3. Each mounting box 92 of this array contains an aerodynamically optimized impeller 94. Its rotation drives a copper rod 97 to rotate in the magnetic field formed by N and S magnetic plates via a rotating rod 93. According to the law of electromagnetic induction, the copper rod 97 cuts the magnetic field lines to generate an induced current. The magnitude of this current is proportional to the rotational speed of the impeller 94 (i.e., the wind speed). Therefore, the relative wind speed can be determined by detecting the magnitude of the current. More importantly, the array calculates the wind direction by comparing the current amplitudes of various spatially distributed detection points: when the wind blows from a specific direction, the sensor directly facing the wind outputs the maximum current because it is directly facing the wind, the sensor on the leeward side outputs the weakest current, and the side sensors output a medium-intensity current. By analyzing this spatial current distribution pattern of "maximum value pointing in the opposite direction" and "minimum value pointing away from the wind," and based on the principle of vector synthesis, the PLC controller can accurately resolve the two-dimensional wind direction.

[0032] The PLC immediately takes active measures to suppress the wind: it precisely activates the high-pressure jet mechanism in the opposite direction on the downwind side to counteract the wind force; at the same time, it predicts the swaying trend based on the wind speed and adjusts the jet intensity in advance—for example, it adopts a stable jet mode when the wind speed is low, and switches to a fast-response pulse mode when the wind speed is high or there is a sudden change, so as to actively counteract the influence of the wind force.

[0033] If, after active suppression, the lifting device still sways due to factors such as continuous wind or inertia, the system immediately uses a combination detection circuit of laser and sliding rheostat to achieve real-time high-precision judgment of the sway state. The laser emitter 91 is installed between the lifting box 1 and the lifting device connecting plate 3, emitting a downward laser beam. Once the lifting device sways, the position of the laser spot on the laser receiver 925 shifts. The laser receiver 925 is installed on the top plane of the spherical cap 924, which is rotatably connected to the annular frame 923. Its bottom end is connected to the counterweight ball 927 via a connecting rod 926, ensuring that the spherical cap 924 and the laser receiver 925 remain parallel to the laser emitter 91 during the swaying process, thereby accurately capturing changes in the position of the laser spot.

[0034] Meanwhile, the sliding groove 98 at the top of the lifting device connecting plate 3 is equipped with a first threaded rod 910 driven by a third motor 99, which drives the first threaded block 911 and the first conductive plate 913 to slide along the first resistance plate 914, forming a first sliding rheostat for detecting the displacement of the lifting device in the front-back direction; the fourth motor 916 on the extension plate 912 drives the second threaded rod 917, which drives the second threaded block 919 and the second conductive plate 921 to slide along the second resistance plate 920, forming a second sliding rheostat for detecting the displacement in the left-right direction. The laser receiver 925 and the two sliding rheostats together form a third detection circuit, which transmits the yaw direction and offset signals to the PLC controller to achieve high-precision judgment of the yaw state. The goal is to ensure that the laser spot is always projected onto the center of the laser receiver 925.

[0035] Upon detecting a sway signal, the PLC controller dynamically coordinates two correction strategies according to a preset program. The first correction mechanism 7 is located at the four corners of the lifting frame 6. The first motor 73 in each mounting housing 71 drives a high-pressure jet pump 74, which draws in air through the exhaust pipe 77 from the rotating port 76 and ejects it through the jet pipe 75 to generate a counter-thrust. The PLC controls the start / stop and jet intensity of the jet pump at the corresponding position according to the sway direction, forming the first correction loop to achieve real-time jet correction. At the same time, the second correction mechanism 8 is located inside the lifting box 1 and includes multiple winding rollers 82 driven by a second motor 83. Each wire rope 2 is wound around the lifting pulley 710 and then fixed to the winding roller 82.

[0036] The fundamental principle of the wire rope 2 winding and unwinding correction is based on actively adjusting the spreader's attitude to recover using gravity. Specifically, when a leftward sway of the spreader is detected, the system controls the second motor 83 driving the front right and rear right wire ropes 2 to perform a winding operation, raising the right side of the spreader; simultaneously, it controls the second motor 83 driving the front left and rear left wire ropes 2 to perform a controlled release operation, lowering the left side of the spreader, thus artificially creating a "right-high, left-low" tilt angle. This operation shifts the center of gravity of the spreader and container to the left, generating a gravitational torque in the right direction. This torque drives the entire system to swing back to the right, effectively counteracting the initial leftward sway. This active attitude adjustment based on gravitational torque complements the instantaneous countermeasure of jet thrust, jointly achieving coordinated control from rapid suppression to fundamental correction.

[0037] Specifically, for small deviations (such as forward / backward or left / right displacement within 0-5cm), the system mainly increases the jet intensity of the corresponding jet mechanism and adjusts the intensity according to the wind speed—for example, using medium jet when the wind speed is below 5m / s and activating high-intensity pulse jet when the wind speed is above 5m / s; for medium deviations (such as 5-15cm), the PLC, while maintaining jet countermeasures, activates the second correction mechanism 8: controlling the corresponding second motor 83 in the lifting box 1 to retract the steel wire rope 2, actively correcting the posture by adjusting the force on the four corners of the lifting device; if the deviation is large (more than 15cm) or the wind is continuously strong, the system comprehensively utilizes the maximum jet power and the rapid retraction and release of the steel wire rope 2 to achieve strong correction. Throughout the process, the wind sensor array continuously provides environmental parameters, enabling the PLC to dynamically adjust the correction mode—such as using a smooth follow-up mode when the wind is stable and switching to pulse mode when the wind changes abruptly, ensuring that the correction response is both forward-looking and adaptive.

[0038] In summary, when the spreader sways, this invention uses a multi-channel detection loop, including a wind sensor array, laser, and sliding rheostat, to identify the sway direction, offset, and wind influence in real time. It also integrates two correction strategies—high-pressure jet thrust and wire rope retraction / deployment—to achieve a coherent control process from "wind forward sensing" to "real-time sway detection" and then to "multi-mode collaborative correction," significantly improving the stability and efficiency of quay crane operations.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A container quay crane spreader sway adaptive correction device, characterized in that, include: The lifting box (1) has steel wire ropes (2) fixedly connected to the four corners of its bottom. The lifting device connecting plate (3) has a rotating mechanism (4) fixedly connected to its bottom end. The rotating mechanism (4) has a support frame (5) fixedly connected to its bottom end. The support frame (5) has a lifting device frame (6) fixedly connected to its bottom end. The four corners of the lifting device frame (6) are all fixedly connected to a first correction mechanism (7). The first correction mechanism (7) includes a mounting shell (71) fixedly connected at the four corners of the lifting frame (6). The outer wall of the mounting shell (71) is provided with a moving port (72). The inner bottom wall of the mounting shell (71) is fixedly connected with a first motor (73). The output end of the first motor (73) is fixedly connected with a high-pressure jet pump (74). The detection mechanism (9) includes a laser emitter (91) that is installed on the opposite side of the lifting box (1) and the lifting device connecting plate (3). The laser emitter (91) is electrically connected to a PLC controller and forms a first detection circuit.

2. The container quay crane spreader sway adaptive correction device according to claim 1, characterized in that, The detection mechanism (9) also includes four mounting boxes (92) fixedly connected to the top of the lifting plate (3). The inner wall of the mounting box (92) is rotatably connected to a rotating rod (93). The other end of the rotating rod (93) rotates to pass through the top of the mounting box (92) and is fixedly connected to a windmill (94). The inner wall of the mounting box (92) is fixedly connected to two symmetrical N-level magnetic plates (95) and S-level magnetic plates (96). The outer wall of the rotating rod (93) inside the mounting box (92) is fixedly connected to a copper rod (97). The copper rod (97) rotates between the N-level magnetic plates (95) and S-level magnetic plates (96) to cut magnetic field lines. The copper rod (97) is electrically connected to a current detector. The current detector is electrically connected to the PLC controller and forms a second detection circuit.

3. The container quay crane spreader sway adaptive correction device according to claim 2, characterized in that, The top of the lifting device connecting plate (3) is provided with a sliding groove (98). The inner wall of the sliding groove (98) is fixedly connected to a third motor (99). The output end of the third motor (99) is fixedly connected to a first threaded rod (910). The outer wall of the first threaded rod (910) is threaded with a first threaded block (911). The top of the first threaded block (911) is fixedly connected to an extension plate (912). The bottom end of the first threaded block (911) is fixedly connected to a first conductive plate (913). The inner bottom wall of the sliding groove (98) is fixedly connected to a first resistance plate (914). The top of the first conductive plate (913) and the top of the first resistance plate (914) are in sliding contact. The first resistance plate (914) and the first conductive plate (913) constitute a first sliding rheostat.

4. The container quay crane spreader sway adaptive correction device according to claim 3, characterized in that, The top of the extension plate (912) is fixedly connected to two symmetrical fixed plates (915). A fourth motor (916) is fixedly connected to the outer wall of one of the fixed plates (915). A second threaded rod (917) is fixedly connected to the output end of the fourth motor (916). A limit rod (918) is fixedly connected between the two fixed plates (915). A second threaded block (919) is threadedly fitted on the outer wall of the second threaded rod (917). The second threaded block (919) is slidably penetrated by the limit rod (918). A second resistance plate (920) is fixedly connected to the top of the extension plate (912). A second conductive plate (921) is fixedly connected to the bottom end of the second threaded block (919). The second conductive plate (921) and the second resistance plate (920) constitute a second sliding rheostat. The top end of the second threaded block (919) is fixedly connected to a fixed cylinder (922), the inner wall of the fixed cylinder (922) is fixedly connected to an arc-shaped annular frame (923), the inner wall of the annular frame (923) is rotatably connected to a spherical cap (924), the bottom end of the spherical cap (924) is fixedly connected to a connecting rod (926), the bottom end of the connecting rod (926) is fixedly connected to a counterweight ball (927), the top plane of the spherical cap (924) is fixedly connected to a laser receiver (925), the laser receiver (925), the first sliding rheostat, the second sliding rheostat are electrically connected to the PLC controller and form a third detection circuit.

5. The container quay crane spreader sway adaptive correction device according to claim 1, characterized in that, The first calibration mechanism (7) further includes a jet pipe (75) fixedly connected to the output end of the high-pressure jet pump (74), a rotating port (76) is opened at the top of the mounting shell (71), an exhaust pipe (77) is fixedly connected to the exhaust end of the high-pressure jet pump (74), and the exhaust pipe (77) rotates in the rotating port (76). The high-pressure jet pump (74) is electrically connected to the PLC controller and forms the first calibration circuit.

6. The container quay crane spreader sway adaptive correction device according to claim 5, characterized in that, The top four corners of the lifting device connecting plate (3) are fixedly connected to the mounting head (78), the top of the mounting head (78) is fixedly connected to the pulley housing (79), the inner wall of the pulley housing (79) is rotatably connected to the lifting pulley (710), and multiple steel wire ropes (2) are respectively wound around the outer wall of the lifting pulley (710).

7. The container quay crane spreader sway adaptive correction device according to claim 1, characterized in that, It also includes a second correction mechanism (8), which includes multiple support plates (81) fixedly connected to the inner wall of the lifting box (1). Each support plate (81) is rotatably connected to a winding roller (82) on one side facing the inside of the lifting box (1), and the other end of the winding roller (82) is rotatably connected to the inner wall of the lifting box (1). A second motor (83) is fixedly connected to the outer wall of the support plate (81). The output end of the second motor (83) is fixedly connected to each winding roller (82). The second motor (83) is electrically connected to the PLC controller and forms a second correction circuit.

8. The container quay crane spreader sway adaptive correction device according to claim 7, characterized in that, The bottom end of the lifting box (1) is provided with multiple sliding holes (84), and the other end of each wire rope (2) passes through each sliding hole (84) and is fixed to the outer wall of the winding roller (82).

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