Anti-swing container portal crane sling and method

Abstract

The invention discloses an anti-swing container portal crane lifting appliance and method, and relates to the technical field of lifting, the anti-swing container portal crane lifting appliance comprises two ground rails and supports slidably mounted on the ground rails, and further comprises a top truss fixedly mounted between the two supports, and a winch is slidably mounted on the top truss; and a driving unit for driving the winch to move is mounted on the top truss. The anti-swing device has the advantages that when a container is hoisted, the steel wire rope is limited through the first anti-swing assembly, the chain hook is limited through the second anti-swing assembly, so that the deflection amplitude of the container is reduced, the stability of the container in the hoisting process is improved, and the second anti-swing assembly controls the anti-swing hardness degree through the inflation amount; the counter-acting force generated by swinging of the container can be effectively counteracted, and the service life of the second anti-swing assembly can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of lifting, and in particular to a lifting device and a method for an anti-sway container gantry crane. Background Art

[0002] Gantry crane spreaders can effectively improve work efficiency and can quickly lift heavy objects. They are particularly suitable for material handling in large construction sites, storage areas, docks and other places. They are commonly used equipment for container lifting in ports and can provide better load stability.

[0003] At present, the commonly used gantry crane hoists are used to lift containers by tying steel wire ropes at the four corners of the container. The four steel wire ropes are driven by different winches. Due to the poor stability of the steel wire ropes, once there is strong wind, the hoisted objects are easily blown off course, causing the objects and the electric hoist to sway, which is prone to safety hazards. Therefore, publication number CN114057098B discloses an anti-sway mechanism for a container gantry crane hoist and a working method thereof, which includes a horizontal moving frame, the side of the horizontal moving frame is slidably connected to a vertical tube, the side of the vertical tube is slidably connected to a fixer, both sides of the side of the fixer are rotatably connected to a number of correspondingly distributed limit frames, the bottom ends of several of the limit frames are rotatably connected to a fitting plate, and the sides of several of the limit frames are sleeved with connecting sleeves, and positioning rods are installed between the connecting sleeves on the correspondingly distributed limit frames.

[0004] The above-mentioned crane sling is provided with a vertical tube and a horizontal moving frame, so as to keep the fixer stable when it moves, thereby improving the stability of the anti-sway mechanism itself during use and preventing the lifting structure from swaying. At the same time, a number of correspondingly distributed limit frames are provided, and angles are set between the correspondingly distributed limit frames, and a fitting plate is installed at the bottom of the limit frame for fitting on the upper side of the object to be lifted, so as to keep it stable during lifting and prevent the object to be lifted from swaying under the action of external force; further, a positioning rod is also installed between the two symmetrically distributed groups of limit frames to keep the angle between the limit frames unchanged.

[0005] When the above-mentioned crane sling is used, the laminating plate is made to stick to the upper surface of the container by sliding the limit frame on the vertical tube. The angle of the limit frame needs to be adjusted by bolts, which is cumbersome to operate. In addition, for different containers, the angle adjustment needs to be performed each time, which is labor-intensive. In addition, the top of the container is not a flat surface, and the laminating plate may slip. In addition, the length of each supporting leg of the limit frame needs to be adjusted, which is inconvenient to use. The limit frame is fixed at a fixed angle after being locked. When the container deviates and presses against the limit frame, due to the inclined angle of the limit frame, forces in two directions are generated according to the decomposition of force. The force in one direction is compressed and relieved by the second return spring, while the other component of force acts directly on the limit frame, and there is a probability that the limit rod will bend.

[0006] Therefore, a novel anti-sway container gantry crane lifting device and method can be used to solve the shortcomings of the prior art. Summary of the invention

[0007] The purpose of the present invention is to solve the problems of complicated operation and bending probability of the limit frame in the prior art, and to propose an anti-sway container gantry crane hoist and method.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions: A sling for an anti-sway container gantry crane comprises two ground rails and a bracket slidably mounted on the ground rails, and also comprises a top truss fixedly mounted between the two brackets, a winch slidably mounted on the top truss, and a driving unit for driving the winch to move is mounted on the top truss; A steel wire rope is wound around the winch, and one end of the steel wire rope away from the winch is fixedly connected to a connecting frame, a support plate is fixedly installed on the connecting frame, and a plurality of chain hooks are fixedly installed on the support plate, a first anti-sway component cooperating with the connecting frame is installed on the bracket, and a second anti-sway component cooperating with the container is installed on the support plate.

[0009] Preferably, the first anti-sway assembly includes two sliding frames slidably mounted on the brackets, a plurality of sliding rails are commonly fixedly mounted on the two sliding frames, a plurality of sliding sleeves matching the corresponding sliding rails are fixedly mounted on the connecting frame, a first telescopic rod is fixedly mounted on each of the two brackets, the two telescopic ends of the first telescopic rods are fixedly connected to the corresponding sliding frames, and a horizontal moving mechanism matching the connecting frame is installed on the two sliding frames.

[0010] Preferably, the horizontal moving mechanism includes a horizontal adjustment motor fixedly mounted on one of the sliding frames, a screw rod is rotatably mounted on the two sliding frames, a threaded sleeve rotatably connected to the screw rod thread is fixedly mounted on the connecting frame, and the screw rod is fixedly connected to the driving end of the horizontal adjustment motor.

[0011] Preferably, the second anti-sway assembly comprises an electric push rod fixedly mounted on the support plate, a gas injection box is fixedly mounted on the telescopic end of the electric push rod, and a support mechanism is installed between the gas injection box and the support plate; The bottom of the gas injection box is fixedly mounted with a gas cylinder, a second triangular plate is fixedly mounted on the gas cylinder, a plurality of telescopic struts are rotatably mounted on the second triangular plate, and an angle adjustment mechanism matched with the plurality of telescopic struts is mounted on the gas cylinder and the gas injection box; The gas injection box is provided with a plurality of length adjustment mechanisms matched with corresponding telescopic struts; A fitting mechanism matched with the container is installed on one side of each telescopic support rod away from the second triangular plate.

[0012] Preferably, the support mechanism comprises two fixing plates fixedly mounted on the gas injection box, two limiting telescopic rods are fixedly mounted on the support plate, and the telescopic ends of the two limiting telescopic rods are fixedly connected to the corresponding fixing plates.

[0013] Preferably, the angle adjustment mechanism includes a piston plate slidably mounted in the air cylinder, a first rod member is fixedly mounted on the piston plate, the first rod member passes through and extends out of the air cylinder, a first triangular plate is fixedly mounted on one end of the first rod member located outside the air cylinder, a plurality of non-full-tooth racks are fixedly mounted on the first triangular plate, a gear meshing with the corresponding rack is fixedly mounted on each of the telescopic struts, an air pump is fixedly mounted in the air injection box, and the air injection box and the air cylinder are connected through a plurality of first air injection pipes.

[0014] Preferably, the length of the space in the cylinder for the piston plate to slide is the same as the tooth pitch on the non-full-tooth rack, and the maximum distance the rack moves, the number of turns the gear makes is less than a quarter of a turn.

[0015] Preferably, the length adjustment mechanism comprises a second gas injection pipe fixedly connected to the gas injection box, the second gas injection pipe is fixedly connected to a telescopic tube, and the telescopic tube is connected to the telescopic support rod through a bent pipe.

[0016] Preferably, the laminating mechanism comprises a vacuum suction cup rotatably mounted at the end of a telescopic support rod, a vacuum box having an upper chamber and a lower chamber is fixedly mounted on the telescopic support rod, an upper piston disc is slidably mounted in the upper chamber of the vacuum box, a lower piston disc is slidably mounted in the lower chamber of the vacuum box, the upper piston disc and the lower piston disc are fixedly connected by a second rod, the second rod passes through the upper chamber and the lower chamber of the vacuum box, and the second rod slides in the vacuum box; The upper chamber of the vacuum box is fixedly connected to a third air injection pipe, on which a pressure valve is fixedly installed, and one end of the third air injection pipe away from the vacuum box is connected to the telescopic support rod, and the lower chamber of the vacuum box is fixedly connected to an air extraction pipe, and one end of the air extraction pipe away from the vacuum box is connected to the vacuum suction cup.

[0017] The present invention also provides a method for preventing sway of a container gantry crane spreader, comprising the above-mentioned anti-sway container gantry crane spreader, and further comprising the following steps: S1. First, start the winch to lower the wire rope on the winch, then hang multiple chain hooks on the four corners of the container, and then drive the winch to reel in and straighten the chain hooks; S2, then the top of the container is supported by the operation of the second anti-sway component, at which time the second anti-sway component between the container and the support plate forms an elastic support between the container and the support plate, so that the container will not sway; S3. After the container is stabilized by the second anti-sway component, continue to drive the winch to reel in and lift the connecting frame and the container. During the transportation process, if the horizontal position of the container needs to be changed, the drive unit drives the winch to move horizontally, and at the same time, the first anti-sway component drives the connecting frame and the winch to move synchronously. The connecting frame is restricted by the first anti-sway component, and no sway will occur during the wire rope lifting process.

[0018] Compared with the prior art, the present invention has the following advantages: 1. When the device is lifting the container, the first anti-sway component is set to limit the connection frame, thereby limiting the wire rope. The connection frame and the winch are located on the same vertical line. Therefore, during lifting, the connection frame will not swing, so the container hooked by the chain hook on the connection frame will not swing either, thereby performing a preliminary swing lock on the container and improving the stability of the container.

[0019] 2. When the device is lifting the container, the second anti-sway component is set to elastically lock the container, which can effectively prevent the chain hook from shaking under the blowing of strong winds. In this way, the container is locked, which can not only effectively reduce the swing amplitude of the container, but also use elastic locking to buffer the reaction force generated by the swing, thereby avoiding the reaction force from damaging the second anti-sway component.

[0020] 3. When the device is lifting a container, air is inflated into the air cylinder and the telescopic support rod through the air injection box to control the length of the telescopic support rod and the angle between two adjacent telescopic support rods. The hardness of the elastic support can be controlled according to the amount of air inflation. The entire adjustment process is completed by air injection, which is easy to operate and fast to adjust.

[0021] 4. When the device is lifting a container, a vacuum suction cup is provided to suck the top of the container, thereby improving the stability of the connection between the second anti-sway component and the container, avoiding slipping, and effectively improving the stability of container lifting.

[0022] To sum up, when lifting a container, the present invention limits the wire rope through the first anti-sway component and limits the chain hook through the second anti-sway component, so as to reduce the swing amplitude of the container and improve the stability of the container during the lifting process. The second anti-sway component controls the hardness of the anti-sway by the inflation amount, which can effectively offset the reaction force generated by the swing of the container, which is beneficial to extending the service life of the second anti-sway component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a structural schematic diagram of an anti-sway container gantry crane spreader proposed by the present invention; Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle; Figure 3 for Figure 2 Detailed schematic diagram of the structure after removing the ground rail, bracket, top truss and drive unit; Figure 4 for Figure 3 An enlarged structural schematic detailed diagram of the middle connecting frame and other components mounted on the connecting frame; Figure 5 for Figure 4 A detailed schematic diagram of the enlarged structure of the second anti-sway component and the support plate; Figure 6 for Figure 5 Detailed schematic diagram of the structure rotated at a certain angle; Figure 7 for Figure 6 The enlarged structural schematic diagram after removing the support plate, the limit telescopic rod and the electric push rod; Figure 8 for Figure 7 The enlarged structural schematic detail diagram of the A part; Fig. 9 for Figure 8 A schematic detailed view of the planar structure of the middle air cylinder, the first triangular plate and the first air injection pipe along one of the angles; Fig.10 for Fig. 9 Detailed schematic diagram of the three-dimensional structure along the BB section; Fig.11 for Figure 7 A schematic detailed diagram of the structure of the middle gas injection box and one of the telescopic struts; Fig.12 for Fig.11 The enlarged structural schematic detail diagram of the middle C part; Fig.13 for Fig.11 A detailed diagram of the enlarged structure of the middle telescopic support rod, the air extraction box and its surrounding parts; Fig.14 for Fig.13 A schematic detailed view of the plan structure along one of the angles; Fig.15 for Fig.14 Detailed schematic diagram of the three-dimensional structure along the DD section.

[0024] In the figure: 1 ground rail, 2 bracket, 3 top truss, 4 driving unit, 5 connecting frame, 6 chain hook, 7 winch, 8 first telescopic rod, 9 sliding rail, 10 screw rod, 11 wire rope, 12 horizontal adjustment motor, 13 I-beam, 14 sliding sleeve, 15 threaded sleeve, 16 second anti-sway assembly, 17 support plate, 18 limit telescopic rod, 19 electric push rod, 20 gas injection box, 21 telescopic support rod, 22 exhaust box, 23 air cylinder, 24 first triangular plate, 25 telescopic tube, 26 second triangular plate, 27 first gas injection pipe, 28 second gas injection pipe, 29 gear, 30 rack, 31 first rod, 32 piston plate, 33 third gas injection pipe, 34 pressure valve, 35 vacuum suction cup, 36 exhaust pipe, 37 second rod, 38 upper piston disc, 39 lower piston disc. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example 1: Reference Figure 1-Figure 2 A sling for an anti-sway container gantry crane comprises two ground rails 1 and a bracket 2 slidably mounted on the ground rails 1, and also comprises a top truss 3 fixedly mounted between the two brackets 2, a winch 7 slidably mounted on the top truss 3, and a driving unit 4 for driving the winch 7 to move is mounted on the top truss 3.

[0027] The driving unit 4 is an existing driving device, which can directly drive the winch 7 to move horizontally on the top truss 3. Its specific structure and operating principle will not be elaborated in detail here.

[0028] The winch 7 is driven to move by the driving unit 4, and the position of the winch 7 is changed to adjust the position of the container, so that the container can be lifted to the target position more accurately.

[0029] A moving unit matched with the ground rail 1 is installed on the bracket 2, which is also an existing driving device and will not be elaborated in detail here. The moving unit can drive the bracket 2 to move on the ground rail 1 for transporting containers.

[0030] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 4 A steel wire rope 11 is wound around the winch 7, and one end of the steel wire rope 11 away from the winch 7 is fixedly connected to a connecting frame 5, a support plate 17 is fixedly installed on the connecting frame 5, and a plurality of chain hooks 6 are fixedly installed on the support plate 17, and a first anti-sway component matching with the connecting frame 5 is installed on the bracket 2.

[0031] The chain hook 6 is a general term for the steel chain and the hook. When the hook is hooked on the hook on the top of the container, the steel chain is in an inclined state. The container, the chain hook 6 and the support plate 17 form a quadrilateral prism with a certain stability.

[0032] The winch 7 is started and the winch 7 winds up the steel wire rope 11, which in turn pulls the connecting frame 5 upward to lift the container. Since the steel wire rope 11 is a single rope, it may swing, so a first anti-swing component is provided to limit it.

[0033] The first anti-sway component includes two sliding frames slidably mounted on the bracket 2, a plurality of sliding rails 9 are fixedly mounted on the two sliding frames, a plurality of sliding sleeves 14 matching the corresponding sliding rails 9 are fixedly mounted on the connecting frame 5, a first telescopic rod 8 is fixedly mounted on each of the two brackets 2, the telescopic ends of the two first telescopic rods 8 are fixedly connected to the corresponding sliding frames, and a horizontal moving mechanism matching the connecting frame 5 is installed on the two sliding frames.

[0034] The horizontal direction is divided into two directions: horizontal and vertical. Figure 3 As shown, the axial direction of the sliding rail 9 is horizontal, and the direction perpendicular to the sliding rail 9 is longitudinal. When the steel wire rope 11 pulls the connecting frame 5 upward, it will drive the sliding frame to slide on the bracket 2. At this time, the first telescopic rod 8 is extended (the first telescopic rod 8 is used to limit the sliding frame to ensure that the sliding frame slides vertically along the bracket 2). The sliding frame is limited by the first telescopic rod 8 and the bracket 2, and no longitudinal displacement will occur.

[0035] The connecting frame 5 can slide laterally on the sliding rail 9, but cannot slide longitudinally, so the connecting frame 5 is restricted laterally. The connecting frame 5 is restricted laterally, so the wire rope 11 will not swing longitudinally, but will swing laterally, so the connecting frame 5 is restricted laterally by a moving mechanism.

[0036] The horizontal moving mechanism includes a horizontal adjustment motor 12 fixedly mounted on one of the sliding frames, a screw rod 10 is mounted on the two sliding frames for rotation, a threaded sleeve 15 is fixedly mounted on the connecting frame 5 for rotation with the screw rod 10, and the screw rod 10 is fixedly connected to the driving end of the horizontal adjustment motor 12.

[0037] Due to the use of the screw rod 10 and the threaded sleeve 15, if you want the connecting frame 5 to slide on the sliding rail 9, you need to rotate the screw rod 10. Therefore, as long as the screw rod 10 does not rotate, the connecting frame 5 will not slide on the sliding rail 9, thereby restricting the connecting frame 5 laterally. In conjunction with the above-mentioned longitudinal restriction, during the lifting process, the connecting frame 5 will not move freely. If the connecting frame 5 needs to move longitudinally, the moving unit on the bracket 2 drives the entire bracket 2 to move longitudinally on the ground rail 1. For lateral movement, it is only necessary to start the horizontal adjustment motor 12. The driving end of the horizontal adjustment motor 12 rotates to drive the screw rod 10 fixedly connected thereto to rotate, thereby driving the threaded sleeve 15 to move on the screw rod 10, thereby driving the connecting frame 5 to move laterally.

[0038] In order to keep the steel wire rope 11 vertical, the movement of the connecting frame 5 is synchronized with the movement of the winch 7. The purpose of keeping the steel wire rope 11 vertical is to reduce the force on the steel wire rope 11 (according to the decomposition of force, when the inclined steel wire rope 11 and the vertical steel wire rope 11 are lifting goods of equal mass, the force on the inclined steel wire rope 11 is greater), which can effectively extend the service life of the steel wire rope 11.

[0039] Embodiment 3: This embodiment is different from the technical solution of Embodiment 2 in that: Figure 4-Figure 15 , a second anti-sway component 16 for the container is installed on the support plate 17; The second anti-sway component 16 includes an electric push rod 19 fixedly mounted on a support plate 17 , a gas injection box 20 is fixedly mounted on the telescopic end of the electric push rod 19 , and a support mechanism is installed between the gas injection box 20 and the support plate 17 .

[0040] The supporting mechanism includes two fixing plates fixedly mounted on the gas injection box 20 , and two limiting telescopic rods 18 are fixedly mounted on the supporting plate 17 , and the telescopic ends of the two limiting telescopic rods 18 are fixedly connected to the corresponding fixing plates.

[0041] When the support plate 17 moves to the upper part of the container along with the connecting frame 5 and is at a certain distance from the container, the chain hook 6 is hung at this time, and then the chain hook 6 is straightened during lifting, and then the electric push rod 19 is started, and the electric push rod 19 drives the gas injection box 20 to move, so that the gas injection box 20 moves to an appropriate position (the position is determined by the inclination angle of the chain hook 6).

[0042] Since the swaying of the container will generate a reaction force on the gas injection box 20, the reaction force will directly act on the electric push rod 19 through the gas injection box 20, which will increase the probability of the electric push rod 19 bending. Therefore, a limiting telescopic rod 18 is provided to distribute the reaction force and reduce the reaction force on the electric push rod 19, so as to protect the electric push rod 19, reduce the probability of the electric push rod 19 bending, extend the service life of the electric push rod 19, and reduce the probability of leakage of the electric push rod 19 (after the electric push rod 19 completes a certain degree of deformation, the sealing is reduced and there is a probability of leakage).

[0043] An air cylinder 23 is fixedly mounted on the bottom of the air injection box 20, a second triangular plate 26 is fixedly mounted on the air cylinder 23, a plurality of telescopic struts 21 are rotatably mounted on the second triangular plate 26, and an angle adjustment mechanism matching the plurality of telescopic struts 21 is mounted on the air cylinder 23 and the air injection box 20.

[0044] refer to Figure 6-Figure 10 The angle adjustment mechanism includes a piston plate 32 slidably installed in the air cylinder 23, a first rod 31 is fixedly installed on the piston plate 32, the first rod 31 passes through and extends out of the air cylinder 23, a first triangular plate 24 is fixedly installed on one end of the first rod 31 located outside the air cylinder 23, a plurality of non-full-tooth racks 30 are fixedly installed on the first triangular plate 24, each telescopic support rod 21 is fixedly installed with a gear 29 meshing with the corresponding rack 30, an air pump is fixedly installed in the air injection box 20, and the air injection box 20 and the air cylinder 23 are connected through a plurality of first air injection pipes 27.

[0045] The gas in the gas injection box 20 is injected into the gas cylinder 23 through the first gas injection pipe 27 by the air pump. At this time, the gas in the gas cylinder 23 increases, which will push the piston plate 32 to move toward the side close to the gas injection box 20. At this time, the first rod 31 moves toward the inside of the gas cylinder 23, thereby driving the first triangular plate 24 to move toward the side close to the gas injection box 20; The movement of the first triangular plate 24 drives the rack 30 fixed thereto to move, thereby driving the gear 29 meshing with the rack 30 to rotate. The rotation of the gear 29 drives the telescopic support rod 21 to rotate around the second triangular plate 26, thereby changing the inclination angle of the telescopic support rod 21.

[0046] The reaction force generated by the swaying of the container will not only cause the telescopic strut 21 to extend and retract, but also cause the telescopic strut 21 to rotate around the second triangular plate 26. If the telescopic strut 21 and the second triangular plate 26 are locked, the telescopic strut 21 may be deformed under the impact of the reaction force. Here, air injection is used to lock the telescopic strut 21. After the reaction force acts on the telescopic strut 21, part of the reaction force can be offset by the movement of the piston plate 32, which can effectively reduce the probability of deformation of the telescopic strut 21, and the air injection adjustment operation is more convenient.

[0047] A bolt that can adjust the movement distance of the piston plate 32 is installed in the air cylinder 23 (the existing structure and operating principle are shown here and only briefly explained). The maximum displacement distance of the piston plate 32 is adjusted by adjusting the position of the bolt, so as to control the maximum inclination angle of the telescopic support rod 21, which is suitable for containers of different weights. The heavier the container, the smaller the inclination angle of the telescopic support rod 21, so that the reaction force along the vertical direction is smaller.

[0048] The length of the space for the piston plate 32 to slide in the air cylinder 23 is the same as the tooth path on the non-full-tooth rack 30, and the rack 30 moves the maximum distance, and the gear 29 rotates less than a quarter of a turn. The purpose of this design is to ensure that after the air cylinder 23 is filled with air, there is still a certain angle between the telescopic support rod 21 and the air cylinder 23, so that the reaction force can be decomposed to achieve maximum support.

[0049] The gas injection box 20 is equipped with multiple length adjustment mechanisms that cooperate with the corresponding telescopic struts 21. The length adjustment mechanisms include a second gas injection tube 28 that is fixedly connected to the gas injection box 20. The second gas injection tube 28 is fixedly connected to a telescopic tube 25 (since the angle of the telescopic strut 21 will change, the telescopic tube 25 is used to adapt to the angle adjustment of the telescopic strut 21). The telescopic tube 25 is connected to the telescopic strut 21 through a bent pipe.

[0050] When the gas in the gas injection box 20 is injected into the gas cylinder 23 through the air pump, gas is also injected into the telescopic strut 21, which will cause the telescopic strut 21 to extend until the end of the telescopic strut 21 is close to the top of the container (as shown below, this close position is when the vacuum suction cup 35 is in contact with the top of the container). At this time, the telescopic strut 21 stops extending. Since the top of the container is uneven, the length requirements of each telescopic strut 21 are different. Therefore, the amount of gas injection required for each telescopic strut 21 is different. The gas injection box 20 is equipped with a gas distribution structure and an air pressure control module. The air pump will inject different amounts of gas into each telescopic strut 21 through the air pressure control module. In this way, the length of the telescopic strut 21 is different while ensuring that the air pressure in each telescopic strut 21 is the same, thereby avoiding the situation where the container is tilted due to uneven force on the container caused by different air pressures.

[0051] A fitting mechanism matching with the container is installed on one side of each telescopic support rod 21 away from the second triangular plate 26, and the fitting mechanism includes a vacuum suction cup 35 rotatably installed at the end of the telescopic support rod 21, and a vacuum box 22 having an upper chamber and a lower chamber is fixedly installed on the telescopic support rod 21, an upper piston disc 38 is slidably installed in the upper chamber of the vacuum box 22, and a lower piston disc 39 is slidably installed in the lower chamber of the vacuum box 22, and the upper piston disc 38 and the lower piston disc 39 are fixedly connected by a second rod 37, and the second rod 37 passes through the upper chamber and the lower chamber of the vacuum box 22, and the second rod 37 slides in the vacuum box 22; The upper chamber of the vacuum box 22 is fixedly connected to a third air injection pipe 33, on which a pressure valve 34 is fixedly installed. The end of the third air injection pipe 33 away from the vacuum box 22 is connected to the telescopic support rod 21, and the lower chamber of the vacuum box 22 is fixedly connected to an air extraction pipe 36, and the end of the air extraction pipe 36 away from the vacuum box 22 is connected to the vacuum suction cup 35.

[0052] The purpose of this part is to adsorb and fix the container to reduce the probability of the container swinging. The specific operation is as follows: When the vacuum suction cup 35 is against the top of the container, the length of the telescopic support rod 21 will not change, but the air pump will still inject air into the telescopic support rod 21, and the air pressure in the telescopic support rod 21 will become larger and larger. When the air pressure in the telescopic support rod 21 is greater than the maximum threshold of the pressure valve 34, the gas in the telescopic support rod 21 will enter the upper chamber of the vacuum box 22 through the third air injection pipe 33, increasing the pressure in the upper chamber of the vacuum box 22, and the upper piston plate 38 will move upward (the upper and lower references here). Fig.15 ), the upper piston disc 38 moves upward, which drives the second rod 37 to move upward, thereby driving the lower piston disc 39 to move in the lower chamber. The space below the lower piston disc 39 in the lower chamber increases, and the pressure decreases, which will suck the air in the vacuum suction cup 35 into the lower chamber through the exhaust pipe 36, so that the vacuum suction cup 35 is adsorbed on the container.

[0053] The specific operation steps of this device are as follows: S1, first start the winch 7 to lower the wire rope 11 on the winch 7, then hang multiple chain hooks 6 on the four corners of the container respectively, and then drive the winch 7 to reel in and straighten the chain hooks 6; S2, then start the electric push rod 19, the electric push rod 19 drives the gas injection box 20 to move to a proper position, and then the gas in the gas injection box 20 is injected into the gas cylinder 23 through the first gas injection pipe 27 by the air pump. At this time, the gas in the gas cylinder 23 increases, which will push the piston plate 32 to move toward the side close to the gas injection box 20. At this time, the first rod 31 moves toward the inside of the gas cylinder 23, thereby driving the first triangular plate 24 to move toward the side close to the gas injection box 20; The first triangular plate 24 moves to drive the rack 30 fixedly connected thereto to move, thereby driving the gear 29 meshing with the rack 30 to rotate. The rotation of the gear 29 drives the telescopic support rod 21 to rotate around the second triangular plate 26, thereby changing the inclination angle of the telescopic support rod 21; When the air pump injects the gas in the gas injection box 20 into the gas cylinder 23, it also injects gas into the telescopic support rod 21, which will cause the telescopic support rod 21 to extend until the vacuum suction cup 35 contacts the top of the container. At this time, the telescopic support rod 21 stops extending, but the air pump continues to inject gas into the telescopic support rod 21. The air pressure in the telescopic support rod 21 will become larger and larger. When the air pressure in the telescopic support rod 21 is greater than the maximum threshold of the pressure valve 34, the gas in the telescopic support rod 21 will enter the upper chamber of the vacuum box 22 through the third gas injection pipe 33, increasing the pressure in the upper chamber of the vacuum box 22. At this time, the upper piston plate 38 will move upward (the upper and lower references here). Fig.15 ), the upward movement of the upper piston disc 38 will drive the second rod 37 to move upward, thereby driving the lower piston disc 39 to move in the lower chamber. The space below the lower piston disc 39 in the lower chamber increases, and the pressure decreases. The air in the vacuum suction cup 35 will be sucked into the lower chamber through the exhaust pipe 36, so that the vacuum suction cup 35 is adsorbed on the container. The amount of gas injection is changed according to the weight of the container, and the anti-sway hardness of the second anti-sway component 16 is adjusted. The heavier the container, the more gas is injected.

[0054] S3. After the container is adsorbed and stabilized, continue to drive the winch 7 to reel in, and lift the connecting frame 5 and the container. During the transportation process, if the horizontal position of the container needs to be changed, the driving unit 4 drives the winch 7 to move horizontally, and at the same time, the first anti-sway component drives the connecting frame 5 and the winch 7 to move synchronously. The connecting frame 5 is restricted by the first anti-sway component, and the wire rope 11 will not swing during the lifting process.

[0055] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sway-resistant container gantry crane hoist, comprising two ground rails (1) and a bracket (2) slidably mounted on the ground rails (1), characterized in that: It also includes a top truss (3) fixedly mounted between the two brackets (2), a winch (7) being slidably mounted on the top truss (3), and a driving unit (4) for driving the winch (7) to move being mounted on the top truss (3); A steel wire rope (11) is wound around the winch (7), one end of the steel wire rope (11) away from the winch (7) is fixedly connected to a connecting frame (5), a support plate (17) is fixedly mounted on the connecting frame (5), a plurality of chain hooks (6) are fixedly mounted on the support plate (17), a first anti-sway component matched with the connecting frame (5) is mounted on the bracket (2), and a second anti-sway component (16) matched with the container is mounted on the support plate (17).

2. The anti-sway container gantry crane spreader according to claim 1, characterized in that: The first anti-sway component comprises two sliding frames slidably mounted on the brackets (2), a plurality of sliding rails (9) being fixedly mounted on the two sliding frames, a plurality of sliding sleeves (14) matching the corresponding sliding rails (9) being fixedly mounted on the connecting frame (5), a first telescopic rod (8) being fixedly mounted on each of the two brackets (2), the telescopic ends of the two first telescopic rods (8) being fixedly connected to the corresponding sliding frames, and a horizontal moving mechanism matching the connecting frame (5) being mounted on the two sliding frames.

3. The anti-sway container gantry crane spreader according to claim 2, characterized in that: The horizontal movement mechanism comprises a horizontal adjustment motor (12) fixedly mounted on one of the sliding frames, a screw rod (10) being rotatably mounted on the two sliding frames together, a threaded sleeve (15) being threadably connected to the screw rod (10) being fixedly mounted on the connecting frame (5), and the screw rod (10) being fixedly connected to a driving end of the horizontal adjustment motor (12).

4. The anti-sway container gantry crane spreader according to claim 1, characterized in that: The second anti-sway component (16) comprises an electric push rod (19) fixedly mounted on a support plate (17), a gas injection box (20) fixedly mounted on the telescopic end of the electric push rod (19), and a support mechanism installed between the gas injection box (20) and the support plate (17); A gas cylinder (23) is fixedly mounted on the bottom of the gas injection box (20); a second triangular plate (26) is fixedly mounted on the gas cylinder (23); a plurality of telescopic support rods (21) are rotatably mounted on the second triangular plate (26); and an angle adjustment mechanism that cooperates with the plurality of telescopic support rods (21) is mounted on the gas cylinder (23) and the gas injection box (20); The gas injection box (20) is provided with a plurality of length adjustment mechanisms matched with corresponding telescopic support rods (21); A fitting mechanism that matches the container is installed on a side of each telescopic support rod (21) away from the second triangular plate (26).

5. The anti-sway container gantry crane spreader according to claim 4, characterized in that: The support mechanism comprises two fixing plates fixedly mounted on the gas injection box (20), two limiting telescopic rods (18) are fixedly mounted on the support plate (17), and the telescopic ends of the two limiting telescopic rods (18) are fixedly connected to the corresponding fixing plates.

6. The anti-sway container gantry crane spreader according to claim 4, characterized in that: The angle adjustment mechanism comprises a piston plate (32) slidably mounted in the air cylinder (23), a first rod (31) being fixedly mounted on the piston plate (32), the first rod (31) passing through and extending out of the air cylinder (23), a first triangular plate (24) being fixedly mounted on one end of the first rod (31) located outside the air cylinder (23), a plurality of non-full-tooth racks (30) being fixedly mounted on the first triangular plate (24), a gear (29) meshing with a corresponding rack (30) being fixedly mounted on each of the telescopic struts (21), an air pump being fixedly mounted in the air injection box (20), and the air injection box (20) and the air cylinder (23) being connected via a plurality of first air injection pipes (27).

7. The anti-sway container gantry crane spreader according to claim 6, characterized in that: The length of the space in the cylinder (23) for the piston plate (32) to slide is the same as the tooth pitch on the non-full-tooth rack (30), and the rack (30) moves the maximum distance and the gear (29) rotates less than a quarter of a turn.

8. The anti-sway container gantry crane spreader according to claim 4, characterized in that: The length adjustment mechanism comprises a second gas injection pipe (28) fixedly connected to the gas injection box (20), a telescopic pipe (25) fixedly connected to the second gas injection pipe (28), and the telescopic pipe (25) is connected to the telescopic support rod (21) via a bent pipe.

9. The anti-sway container gantry crane spreader according to claim 4, characterized in that: The laminating mechanism comprises a vacuum suction cup (35) rotatably mounted on the end of a telescopic support rod (21); a vacuum box (22) having an upper chamber and a lower chamber is fixedly mounted on the telescopic support rod (21); an upper piston disc (38) is slidably mounted in the upper chamber of the vacuum box (22); a lower piston disc (39) is slidably mounted in the lower chamber of the vacuum box (22); the upper piston disc (38) and the lower piston disc (39) are fixedly connected via a second rod (37); the second rod (37) passes through the upper chamber and the lower chamber of the vacuum box (22), and the second rod (37) slides in the vacuum box (22); The upper chamber of the vacuum box (22) is fixedly connected to a third gas injection pipe (33), on which a pressure valve (34) is fixedly mounted, and one end of the third gas injection pipe (33) away from the vacuum box (22) is connected to the telescopic support rod (21), and the lower chamber of the vacuum box (22) is fixedly connected to a vacuum pipe (36), and one end of the vacuum pipe (36) away from the vacuum box (22) is connected to the vacuum suction cup (35).

10. A method for preventing sway of a container gantry crane spreader, used for the anti-sway container gantry crane spreader according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, first start the winch (7) to lower the steel wire rope (11) on the winch (7), then hang a plurality of chain hooks (6) on the four corners of the container respectively, and then drive the winch (7) to reel in and straighten the chain hooks (6); S2, the top of the container is then supported by the operation of the second anti-sway component (16), at which time the second anti-sway component (16) between the container and the support plate (17) forms an elastic support between the container and the support plate (17), so that the container will not sway; S3. After the container is stabilized by the second anti-sway component (16), the winch (7) is driven to be reeled in, and the connecting frame (5) and the container are lifted. During the transportation process, if the horizontal position of the container needs to be changed, the drive unit (4) drives the winch (7) to move horizontally, and at the same time, the first anti-sway component drives the connecting frame (5) and the winch (7) to move synchronously. The connecting frame (5) is restricted by the first anti-sway component, and the wire rope (11) will not swing during the lifting process.

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