Large-span bridge crane for a port and method

Abstract

The present application relates to the technical field of crane, specifically to a large-span bridge crane for port and method, including bridge and lifting appliance, further including fan, which is constructed with two lifting appliances on the top and connected by series air pipe, both ends of the lifting appliance are provided with a plurality of half-rotation jet pipes for conveying gas, and the both ends of the lifting appliance are fixedly connected with gas collecting pipe for supporting a plurality of half-rotation jet pipes, and the inside of the gas collecting pipe is provided with anti-swing assembly for adjusting the direction of half-rotation jet pipe according to the swing of lifting appliance; the clamping plate is arranged inside the lifting appliance for clamping workpiece, the inside of the lifting appliance is fixedly connected with inclined frame, and the outer surface of the inclined frame is provided with auxiliary assembly for supporting the clamping plate; the shock-absorbing piece is constructed with a plurality of and evenly arranged on one side of the clamping plate, the inside of the clamping plate is provided with connecting seat connected with the shock-absorbing piece, and the inside of the clamping plate is provided with liquid oil cylinder for sliding connection of the connecting seat, and the inside of the clamping plate is provided with shock-absorbing assembly for conveying oil into the liquid oil cylinder.

Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically to a long-span bridge crane and method for use in ports. Background Technology

[0002] As a core hub of global trade, ports are experiencing continuous growth in cargo throughput. Taking Yibin Port on the upper reaches of the Yangtze River as an example, its 1,000-ton heavy cargo berth construction project needs to handle the loading and unloading of ultra-large equipment, which places higher demands on the load-bearing capacity and span of lifting equipment. Traditional lifting equipment, due to its limited span, is unable to meet the needs of modern ports for large-scale and high-efficiency operations. In contrast, large-span bridge cranes, with their wide coverage and flexible operation, are gradually becoming the core equipment of port loading and unloading systems.

[0003] For example, patent document CN114408742B discloses a long-span bridge crane, relating to the field of bridge crane technology. To address reliability issues, it specifically includes a rectangular frame supported on the ground by support legs. The rectangular frame is connected to a sliding plate via a sliding assembly. A drive assembly is located at the bottom of the sliding plate. The drive assembly is connected to two sets of anti-sway components via a winch rope. The two sets of anti-sway components are arranged with their centers rotated and offset by 90 degrees. A hook is located at the bottom of each anti-sway component. Each anti-sway component includes a damping box and a cover. The cover is fixedly installed on the top outer wall of the damping box. A swing rod is rotatably connected to the bottom outer wall of the cover. The other end of the swing rod is fixedly connected to a connecting shaft. A counterweight assembly, including a generator and a counterweight box, is fixedly installed on the outer wall of the connecting shaft. In this patent document, the entire anti-sway component is always located at the end of the winch rope, i.e., at the point where the object is being lifted, thus making the anti-sway effect relatively reliable.

[0004] While the aforementioned existing technologies improve anti-sway performance by incorporating anti-sway components at the ends of the winches, in actual port operation environments, the spreader is prone to irregular, high-frequency, micro-amplitude swaying due to continuous and variable wind forces. These swaying trajectories are small and highly random, resulting in delayed response and insufficient control precision from traditional anti-sway components, making it difficult to effectively suppress swaying and severely impacting the efficiency and safety of lifting operations. Therefore, this application proposes a large-span bridge crane and method for use in ports. Summary of the Invention

[0005] The purpose of this invention is to provide a long-span bridge crane and method for use in ports, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a large-span bridge crane for ports, comprising a bridge frame and a spreading device, and further comprising:

[0007] The fan has two components, both mounted on the top of the hanger and connected in series via a series air pipe. Both ends of the hanger are equipped with multiple semi-rotary jet pipes that can transport gas. Both ends of the hanger are fixedly connected to a gas collection pipe for supporting the multiple semi-rotary jet pipes. The gas collection pipe is equipped with an anti-sway component that adjusts the orientation of the semi-rotary jet pipes according to the swing of the hanger.

[0008] A clamping plate is installed inside the lifting device to clamp the workpiece. An inclined frame is fixedly connected inside the lifting device, and an auxiliary component for supporting the clamping plate is provided on the outer surface of the inclined frame.

[0009] The shock absorber has multiple components evenly arranged on one side of a clamping plate. The clamping plate has a connecting seat inside that connects to the shock absorber, and a hydraulic cylinder for sliding connection of the connecting seat is provided inside the clamping plate. The clamping plate also has a shock-absorbing component for supplying oil to the hydraulic cylinder.

[0010] Preferably, the anti-sway component is connected to multiple positioning nozzles at the top of the gas collection pipe for rotating connection of the semi-rotary jet pipes, and the bottom of the multiple semi-rotary jet pipes is connected to an air intake cone for gas entry. The gas collection pipe is connected to the fan through a gas delivery pipe. A sliding plate is slidably connected inside the gas collection pipe, and multiple limiting rods are fixedly connected to one side of the sliding plate. The bottom of the multiple air intake cones is fixedly connected to a rotating rod that is rotatably connected to the gas collection pipe. A crank is fixedly connected to the outer surface of the rotating rod, and a movable groove that is slidably connected to the limiting rod is opened inside the crank.

[0011] Preferably, a level sensor is fixedly connected to the top of the lifting device, a controller is fixedly connected to the top of the lifting device, an electric push rod is fixedly connected inside the air collection pipe, and the output end of the electric push rod is fixedly connected to the slide plate. The controller receives feedback from the level sensor and controls the operation of the fan and the electric push rod.

[0012] Preferably, the auxiliary component includes inclined guide grooves formed on the outer surface of the inclined frame, and each inclined guide groove has a movable seat slidably connected to its surface. A connecting plate is connected to multiple movable seats, and the connecting plate is connected to the clamping plate and moves together. The inclined guide groove is constructed as an inclined surface.

[0013] Preferably, a vertical electric rail is fixedly connected to one side of the clamping plate, and a slider that is fixedly connected to the connecting plate is slidably connected to the outer surface of the vertical electric rail.

[0014] Preferably, the shock-absorbing assembly includes an oil storage chamber opened inside the clamping plate, and the oil storage chamber is used to store oil. A plurality of rubber cylinders are fixedly connected to one side of the clamping plate, and the plurality of rubber cylinders are in communication with the oil storage chamber. The plurality of rubber cylinders are connected to the oil cylinder through an oil passage groove. A piston plate is fixedly connected to one end of the connecting seat located inside the oil cylinder, and a tension spring fixedly connected to the oil cylinder is fixedly connected to one end of the piston plate.

[0015] Preferably, an oil-pushing plate for squeezing oil is slidably connected inside the oil storage chamber. A screw threadedly connected to a clamping plate is rotatably connected to one side of the oil-pushing plate, and a pull handle is fixedly connected to one end of the screw. A top plate is fixedly connected to the top of the slider, and a guide rod is fixedly connected to the top of the top plate. A limiting groove for sliding connection of the guide rod is provided at one end of the pull handle.

[0016] Preferably, a moving cart is provided on the top of the cable tray, a hoist is rotatably connected inside the moving cart, a geared motor for driving the hoist to rotate is fixedly connected to one side of the moving cart, and the hoist is fixedly connected to the lifting device by a steel wire.

[0017] Preferably, the bottom of the cable tray is fixedly connected to multiple support legs, and the top of the cable tray is fixedly connected to a main beam frame, which is used to support the moving vehicle for sliding.

[0018] The present invention also provides a method for lifting long-span bridge cranes in ports, comprising the following steps:

[0019] S1. Lower the lifting device by operating it;

[0020] S2. Push the clamping plate to clamp the object being squeezed. During this process, the auxiliary components support the clamping plate.

[0021] S3. Multiple damping pads simultaneously contact the workpiece. When subjected to vibration, the vibration force is transmitted to the surface of the damping pads and absorbed by the connecting seat, transmitting the vibration force to the oil in the hydraulic cylinder and absorbing the resonance force.

[0022] S4. When the spreader swings, the anti-sway component operates to control the fan to spray air into multiple semi-rotary jet pipes to counteract the swing force.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Two blowers are connected in series via a series air pipe, allowing one end of the semi-rotary jet pipe to expel air while the other end draws in air. This airflow distribution method generates a counter-torque, further suppressing the sway amplitude of the spreader and weakening the swaying force, making the spreader more stable during lifting. A manifold is fixedly connected to both ends of the spreader, supporting multiple semi-rotary jet pipes and connected to the blowers via an air supply pipe. It collects and distributes the gas delivered by the blowers, ensuring a stable airflow supply to each semi-rotary jet pipe, thereby achieving uniform jetting and improving anti-sway performance. The semi-rotary jet pipes can deliver gas, and their orientation can be adjusted according to the sway of the spreader. An anti-sway component installed inside the manifold allows for flexible adjustment of the jetting direction of the semi-rotary jet pipes based on the sway of the moving vehicle, enabling more accurate anti-sway function and adapting to the complex airflow environment of the port and the lifting requirements of the cargo. A positioning nozzle connected to the top of the manifold provides a rotating connection point for the semi-rotary jet pipes. Its precise design and installation ensure the stability of the semi-rotary jet pipes during rotation, preventing swaying or deviation, thus guaranteeing the accuracy of the jet direction and improving anti-sway performance. Multiple semi-rotary jet pipes have intake cones connected to their bottoms, and the bottom of these cones is fixedly connected to a rotating rod that rotatably connects to the gas collection pipe. This structural design allows gas to smoothly enter the semi-rotary jet pipes, while the rotation of the rotating rod drives the semi-rotary jet pipes to rotate, adjusting the jet direction. A crank is fixedly connected to the outer surface of the rotating rod, and the crank has a movable groove that slides through a limit rod. Multiple limit rods fixedly connected to one side of the slide plate move, driving one end of the crank through the movable groove, which in turn drives the rotating rod to rotate, thus adjusting the rotation of the semi-rotary jet pipes. This ingenious mechanical design precisely controls the rotation angle of the semi-rotary jet pipes, allowing them to rotate half a turn. Furthermore, the semi-rotary jet pipes at both ends of the spreader are mirror-shaped, with the two sets facing opposite directions. With one set inhaling air and the other exhaling, the swaying of the spreader is effectively suppressed.

[0025] 2. With the cooperation of the inclined frame and auxiliary components, the clamping plate achieves stable operation in both horizontal and vertical directions through the synergistic action of the inclined guide groove, movable seat, connecting plate, vertical electric guide rail, and slider. When the drive cylinder is running, the clamping plate moves horizontally, the movable seat slides within the inclined guide groove to generate a combined displacement, and the slider moves in coordination on the vertical electric guide rail, providing all-around support and guidance for the clamping plate. After the drive cylinder stops, the vertical electric guide rail allows the slider to grip tightly. Combined with the large friction of the inclined guide groove, the connecting plate becomes a robust support beam between the clamping plate and the lifting device, absorbing the load-bearing force for the output shaft of the drive cylinder. This greatly improves the stability of the clamping plate's operation, thereby enhancing its clamping force, effectively preventing the clamping plate from loosening under stress, and ensuring the reliability of workpiece clamping. The shock absorption component, through the coordinated work of components such as the oil storage chamber, rubber cylinder, oil channel, hydraulic oil cylinder, connecting seat, piston plate, and tension spring, constructs a highly efficient shock absorption system. When the damping pad contacts the workpiece and is subjected to vibration, the vibration is transmitted to the piston plate through the connecting seat. The piston plate squeezes the oil in the hydraulic cylinder, and the oil flows between the rubber cylinder and the hydraulic cylinder through the oil passage, evenly dispersing and absorbing the vibration. Simultaneously, the elasticity of the rubber cylinder and the restoring force of the tension spring further enhance the damping effect. Furthermore, as the clamping pressure increases, the slider moves the top plate upwards. Through the cooperation of the guide rod and the pull handle, the screw rotates, pushing the oil pusher plate into the oil storage chamber, squeezing the oil into the rubber cylinder, increasing the rigidity of the rubber cylinder, and further improving the damping capacity. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure in this invention where the cable tray is removed;

[0029] Figure 4 This is a schematic diagram of the lifting device in this invention;

[0030] Figure 5 This is a schematic cross-sectional view of the gas collection pipe in this invention;

[0031] Figure 6 This is a schematic diagram of the semi-swirl jet pipe in this invention;

[0032] Figure 7 This is a schematic diagram of the clamping plate in this invention;

[0033] Figure 8 This is a schematic diagram of the first cross-sectional structure of the clamping plate in this invention;

[0034] Figure 9 This is a schematic diagram of the second cross-sectional structure of the clamping plate in this invention;

[0035] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point A;

[0036] Figure 11 For the present invention Figure 9 Enlarged schematic diagram of the structure at point B.

[0037] In the diagram: 100, cable tray; 101, support leg; 102, main beam frame; 103, moving vehicle; 104, hoist; 105, geared motor; 106, lifting device; 200, fan; 201, series air pipe; 202, air delivery pipe; 203, air collection pipe; 204, level sensor; 205, controller; 206, semi-rotary jet pipe; 207, air intake cone; 208, positioning nozzle; 209, rotating rod; 210, crank; 211, limit rod; 212, movable groove; 213, sliding plate; 214, electric... 300. Moving push rod; 301. Clamping plate; 302. Drive cylinder; 303. Inclined frame; 304. Inclined guide groove; 305. Movable seat; 306. Connecting plate; 307. Slider; 408. Vertical electric guide rail; 409. Shock absorber; 400. Rubber cylinder; 401. Oil passage groove; 402. Hydraulic oil cylinder; 404. Connecting seat; 405. Piston plate; 406. Tension spring; 407. Oil storage chamber; 408. Push plate; 409. Screw; 410. Pull handle; 411. Limiting groove; 412. Top plate; 413. Guide rod. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1 - Figure 11This invention provides a technical solution: a large-span bridge crane for ports, comprising a bridge frame 100 and a lifting device 106. A transfer cart 103 is mounted on the top of the bridge frame 100, and a hoist 104 is rotatably connected inside the transfer cart 103. A reduction motor 105 for driving the hoist 104 to rotate is fixedly connected to one side of the transfer cart 103. The hoist 104 is fixedly connected to the lifting device 106 via a steel wire. Multiple support legs 101 are fixedly connected to the bottom of the bridge frame 100, and a main beam frame 102 is fixedly connected to the top of the bridge frame 100, supporting the transfer cart 103 for its sliding. 102 provides support for the lateral movement of the transfer vehicle 103. The transfer vehicle 103 is equipped with wheels at its bottom, which are centrally driven to move on the surface of the main beam 102. At the same time, a longitudinal movement component is provided inside the transfer vehicle 103 to drive the hoist 104 to move. This longitudinal movement component can be a motor, reducer, wheels, brake, and coupling, which drives the hoist 104 to move longitudinally. This provides a reliable support track for the lateral movement of the transfer vehicle 103, allowing the transfer vehicle 103 to slide smoothly on the surface of the main beam 102. This ensures the precise movement of the lifting device 106 in the horizontal direction, facilitating accurate lifting operations for goods.

[0040] It also includes two blowers 200, each mounted on top of the hanger 106 and connected in series via a series air pipe 201. The blowers 200 can be Roots blowers. Multiple semi-rotary jet pipes 206 for conveying gas are provided at both ends of the hanger 106, and a gas collection pipe 203 is fixedly connected to both ends of the hanger 106 to support the multiple semi-rotary jet pipes 206. The gas collection pipe 203 contains an anti-sway component that adjusts the orientation of the semi-rotary jet pipes 206 according to the swing of the hanger 106. The series connection of the blowers 200 increases the jet power. By having one end of the semi-rotating jet pipe 206 spray air while the other end inhales air, the amplitude of the sway is further suppressed and the swaying force is weakened. The anti-sway component can flexibly adjust the direction of the jet according to the sway of the moving vehicle 103, thereby more accurately realizing the anti-sway function. It can then be applied to the variable airflow disturbances in the port. The reaction force of the airflow effectively suppresses the sway amplitude of the spreader 106, weakens the swaying force, improves the stability of the spreader 106 during the lifting process, reduces the risk of cargo collision and damage caused by swaying, and ensures the safety and efficiency of port operations.

[0041] Furthermore, the anti-sway assembly is connected to multiple positioning nozzles 208 at the top of the air manifold 203 for rotating connection of the semi-swirl jet pipes 206, and the bottom of the multiple semi-swirl jet pipes 206 is connected to an air intake cone 207 for gas entry. The air manifold 203 is connected to the fan 200 through the air supply pipe 202. A sliding plate 213 is slidably connected inside the air manifold 203, and multiple limiting rods 211 are fixedly connected to one side of the sliding plate 213. The bottom of the multiple air intake cones 207 is fixedly connected to a rotating rod 209 that is rotatably connected to the air manifold 203. A crank 210 is fixedly connected to the outer surface of the rotating rod 209, and the inside of the crank 210 has an opening. The movable groove 212 is slidably connected to the limiting rod 211. Under the cooperation of the limiting rod 211 and the crank 210, the semi-rotary jet pipe 206 can be driven to rotate half a turn. The semi-rotary jet pipes 206 at both ends of the hanger 106 are mirror-shaped, resulting in the two sets of semi-rotary jet pipes 206 facing opposite directions. With one set inhaling air and the other exhaling, the swaying of the hanger 106 can be effectively suppressed. The air collection pipe 203, as the center for airflow convergence and distribution, can evenly distribute the gas delivered by the fan 200 to each semi-rotary jet pipe 206, ensuring that each semi-rotary jet pipe 206 can work normally and exert optimal anti-sway performance.

[0042] The top of the lifting device 106 is fixedly connected to a horizontal sensor 204 and a controller 205. An electric push rod 214 is fixedly connected inside the air collection pipe 203, and the output end of the electric push rod 214 is fixedly connected to the slide plate 213. The controller 205 receives feedback from the horizontal sensor 204 and controls the operation of the fan 200 and the electric push rod 214. The horizontal sensor 204 can flexibly detect the swing direction and amplitude of the lifting device 106. The sensor installed inside the sensor transmits the data to the controller 205, which quickly makes a judgment and controls the motor in the fan 200 to run in the forward or reverse direction, as well as the operation of the electric push rod 214. This realizes the control of the airflow delivery direction and the jet angle of the semi-rotary jet pipe 206, which can be flexibly adjusted in the face of swing at various angles.

[0043] Specifically, the level sensor 204 detects the levelness of the lifting device 106 in real time. When the lifting device 106 swings or tilts, the blower 200 can be operated to supply air into the air pipe 202, which then supplies air to multiple semi-rotary jet pipes 206 to counteract the swing force. When the level sensor 204 detects that the lifting device 106 is swinging left or right, the controller 205 operates the electric push rod 214 to move, pushing the slide plate 213 to move, which in turn drives multiple limit rods 211 to move. The crank 210 is limited by the movable groove 212. The end moves to drive the rotating rod 209 to rotate. The two semi-rotary jet pipes 206 at both ends of the lifting device 106 need to be operated to face opposite directions. The two blowers 200 are connected in series through the series air pipe 201, so that multiple semi-rotary jet pipes 206 at one end draw in air while multiple semi-rotary jet pipes 206 at the other end spray air. When the lifting device 106 swings to the left, the semi-rotary jet pipe 206 on the left side sprays air while the other side draws in air. That is, when the lifting device 106 swings in any direction, the semi-rotary jet pipe 206 in that swing direction sprays air to counteract the swing force.

[0044] In summary, the two blowers 200 are connected in series via a series air pipe 201, allowing one end of the semi-rotary jet pipe 206 to expel air while the other end draws in air. This airflow distribution method generates a counter-torque, further suppressing the swaying amplitude of the lifting device 106, weakening the swaying force, and making the lifting device 106 more stable during lifting. The air collection pipe 203 is fixedly connected to both ends of the lifting device 106, supporting multiple semi-rotary jet pipes 206, and connected to the blowers 200 via the air supply pipe 202. It collects and distributes the gas delivered by the blowers 200, ensuring that each semi-rotary jet pipe 206 receives a stable airflow supply, thereby achieving uniform jetting and improving anti-sway performance. The semi-rotary jet pipes 206 can deliver gas, and their orientation can be adjusted according to the swaying of the lifting device 106. By incorporating an anti-sway component inside the air manifold 203, the jet direction of the semi-rotary jet pipe 206 can be flexibly adjusted according to the swaying of the moving vehicle 103, enabling it to more accurately achieve its anti-sway function and adapt to the complex airflow environment of the port and the requirements of cargo handling. The positioning nozzle 208 is connected to the top of the air manifold 203, providing a position for the semi-rotary jet pipe 206 to rotate. Its precise design and installation ensure that the semi-rotary jet pipe 206 remains stable during rotation, without swaying or deviation, thereby ensuring the accuracy of the jet direction and improving the anti-sway effect. The bottom of multiple semi-rotary jet pipes 206 is connected to an air intake cone 207, and the bottom of the air intake cone 207 is fixedly connected to a rotating rod 209 that is rotatably connected to the air manifold 203. This structural design allows gas to smoothly enter the semi-rotary jet pipe 206. Simultaneously, the rotation of the rotating rod 209 drives the semi-rotary jet pipe 206 to rotate, adjusting the jet direction. A crank 210 is fixedly connected to the outer surface of the rotating rod 209, and the crank 210 has an internal movable groove 212 that slides with the limiting rod 211. Multiple limiting rods 211 fixedly connected to one side of the slide plate 213, when moving, drive one end of the crank 210 to move through the movable groove 212, thereby driving the rotating rod 209 to rotate, achieving rotational adjustment of the semi-rotary jet pipe 206. This ingenious mechanical design allows precise control of the rotation angle of the semi-rotary jet pipe 206, making it rotate half a turn. Furthermore, the semi-rotary jet pipes 206 at both ends of the lifting device 106 are mirror images, with the two sets of semi-rotary jet pipes 206 facing opposite directions. With one set inhaling air and the other exhaling air, the swaying of the lifting device 106 is effectively suppressed.

[0045] Example 2: Please refer to Figure 1 - Figure 11The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a large-span bridge crane for ports, further comprising a clamping plate 300, which is disposed inside a spreader 106 for clamping workpieces. A slant frame 302 is fixedly connected inside the spreader 106, and an auxiliary component for supporting the clamping plate 300 is disposed on the outer surface of the slant frame 302. By setting the clamping plate 300, the workpiece can be clamped. The cooperation between the slant frame 302 and the auxiliary component can improve the stability of the operation of the clamping plate 300, thereby increasing its clamping force and preventing it from loosening under force. The drive cylinder 301 provides power for the movement of the clamping plate 300.

[0046] It also includes shock absorbers 400, which are constructed in multiple and evenly arranged on one side of the clamping plate 300. The clamping plate 300 has a connecting seat 404 connected to the shock absorber 400 inside, and a hydraulic cylinder 403 for sliding connection of the connecting seat 404 is opened inside the clamping plate 300. The clamping plate 300 has a shock-absorbing component that supplies oil to the hydraulic cylinder 403. By setting the shock absorber 400, the friction between the clamping plate 300 and the workpiece can be increased. Under the action of the connecting seat 404, the vibration force generated by the swing of the workpiece can be absorbed, thereby improving its stability. The shock-absorbing component can supply oil to provide a medium for absorbing resonance force.

[0047] Furthermore, the auxiliary components include inclined guide grooves 303 formed on the outer surface of the inclined frame 302, and each inclined guide groove 303 has a movable seat 304 slidably connected to its surface. Multiple movable seats 304 are connected together by a connecting plate 305. The connecting plate 305 is connected to the clamping plate 300 and moves together. The inclined guide groove 303 is constructed as an inclined surface. A vertical electric guide rail 307 is fixedly connected to one side of the clamping plate 300. A slider 306, fixedly connected to the connecting plate 305, is slidably connected to the outer surface of the vertical electric guide rail 307. The vertical electric guide rail 307 can electrically drive the slider 306 to move upwards. As the drive cylinder 301 operates, the clamping plate 300 moves horizontally. At this time, the connection... The plate 305 moves together with it. When the movable seat 304 slides in the inclined guide groove 303, it will generate synchronous displacement in the horizontal and vertical directions. The cooperation between the slider 306 and the vertical electric guide rail 307 provides it with vertical movement space. Therefore, the movable seat 304 can move together with the clamping plate 300. After the drive cylinder 301 stops running, the driving force can be applied to the slider 306 by operating the vertical electric guide rail 307 to make the two clamp together. At the same time, since the inclined guide groove 303 is an inclined surface with large friction, the connecting plate 305 acts as a support beam between the clamping plate 300 and the lifting device 106, absorbing the load-bearing force for the output shaft of the drive cylinder 301 and playing an auxiliary support role.

[0048] Furthermore, the shock absorption assembly includes an oil storage chamber 407 located inside the clamping plate 300, which is used to store oil. A plurality of rubber cylinders 401 are fixedly connected to one side of the clamping plate 300, and the plurality of rubber cylinders 401 are connected to the oil storage chamber 407. The plurality of rubber cylinders 401 are connected to the hydraulic oil cylinder 403 through an oil passage groove 402. A piston plate 405 is fixedly connected to one end of the connecting seat 404 located inside the hydraulic oil cylinder 403, and a tension spring 406 fixedly connected to the hydraulic oil cylinder 403 is fixedly connected to one end of the piston plate 405. By setting the oil storage chamber 407, a large amount of oil can be stored. The shock absorber 400 abuts against the workpiece, and when it is subjected to a large vibration force, it will generate displacement to push its displacement, so that the rubber cylinders 401 abut against the workpiece for assistance. The hydraulic oil cylinder 403 and the rubber cylinders 401 are connected to each other through the oil passage groove 402, so that when either one is subjected to a vibration force, oil will be squeezed into the other for auxiliary vibration reduction.

[0049] The oil storage chamber 407 is slidably connected to a pusher plate 408 for squeezing oil. One side of the pusher plate 408 is rotatably connected to a screw 409 threadedly connected to the clamping plate 300, and one end of the screw 409 is fixedly connected to a pull handle 410. The top of the slider 306 is fixedly connected to a top plate 412, and the top of the top plate 412 is fixedly connected to a guide rod 413. One end of the pull handle 410 is provided with a limiting groove 411 for sliding connection of the guide rod 413. As the squeezing pressure of the clamping plate 300 increases, the upward movement of the top plate 412 will drive the pull handle 410 to rotate and drive the pusher plate 408 to move into the oil storage chamber 407, further filling the oil in the rubber cylinder 401 and the oil cylinder 403, thereby increasing its shock absorption effect.

[0050] Specifically, as the slider 306 moves, it will cause the top plate 412 to move upward, thereby causing the guide rod 413 to slide in the limiting groove 411, pushing the pull handle 410 to rotate and causing the screw 409 to rotate. At this time, the rotation of the screw 409 will push the oil pusher plate 408 to move into the oil storage chamber 407, thereby squeezing the oil in the oil storage chamber 407 and causing it to be over-pressurized and discharged into multiple rubber cylinders 401, causing the multiple rubber cylinders 401 to expand and increase rigidity. At the same time, multiple damping plates 400 abut against the workpiece. When subjected to vibration force, it will be transmitted to the surface of the damping plate 400 and absorbed by the connecting seat 404, transmitting the vibration force to the tension spring 406 and the oil in the hydraulic cylinder 403, absorbing the resonance force.

[0051] In summary, with the cooperation of the inclined frame 302 and auxiliary components, and through the synergistic action of the inclined guide groove 303, the movable seat 304, the connecting plate 305, the vertical electric guide rail 307, and the slider 306, the clamping plate 300 achieves stable operation in both the horizontal and vertical directions. When the drive cylinder 301 is running, the clamping plate 300 moves horizontally, the movable seat 304 slides within the inclined guide groove 303 to generate a compound displacement, and the slider 306 moves in conjunction with the vertical electric guide rail 307, providing all-round support and guidance for the clamping plate 300. After the drive cylinder 301 stops, the vertical electric guide rail 307 can clamp the slider 306. Combined with the large friction of the inclined guide groove 303, the connecting plate 305 becomes a solid support beam between the clamping plate 300 and the lifting device 106, absorbing the load for the output shaft of the drive cylinder 301, greatly improving the stability of the clamping plate 300, thereby enhancing its clamping force, effectively preventing the clamping plate 300 from loosening under force, and ensuring the reliability of workpiece clamping. The shock absorption assembly, through the coordinated work of components such as the oil storage chamber 407, rubber cylinder 401, oil channel 402, hydraulic oil cylinder 403, connecting seat 404, piston plate 405 and tension spring 406, constructs a highly efficient shock absorption system. When the damping pad 400 comes into contact with the workpiece and is subjected to vibration, the vibration is transmitted to the piston plate 405 through the connecting seat 404. The piston plate 405 squeezes the oil in the hydraulic cylinder 403, and the oil flows between the rubber cylinder 401 and the hydraulic cylinder 403 through the oil passage 402, evenly dispersing and absorbing the vibration. At the same time, the elasticity of the rubber cylinder 401 and the restoring force of the tension spring 406 further enhance the damping effect. In addition, as the squeezing pressure of the clamping plate 300 increases, the slider 306 drives the top plate 412 to move upward. Through the cooperation of the guide rod 413 and the pull handle 410, the screw 409 rotates and pushes the oil pusher plate 408 into the oil storage chamber 407, squeezing the oil into the rubber cylinder 401, increasing the rigidity of the rubber cylinder 401, and further improving the damping capacity.

[0052] Example 3: Please refer to Figure 1-8 The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a method for lifting long-span bridge cranes in ports, comprising the following steps:

[0053] S1. During use, the position of the lifting device 106 can be adjusted by moving the moving vehicle 103 on the surface of the main beam frame 102. The lifting device 106 can be released and moved down by rotating the hoist 104 driven by the reduction motor 105.

[0054] S2. By operating the drive cylinder 301, the clamping plate 300 is pushed to clamp the object. During the movement of the clamping plate 300, the vertical electric guide rail 307 is operated to change the position of the slider 306. At the same time, the movable seat 304 slides on the surface of the inclined guide groove 303, thereby realizing the support of the connecting plate 305 on the clamping plate 300.

[0055] S3. As the slider 306 moves, it will drive the top plate 412 to move upward, thereby driving the guide rod 413 to slide in the limiting groove 411, pushing the pull handle 410 to rotate and driving the screw 409 to rotate. At this time, the rotation of the screw 409 will push the oil pusher plate 408 to move into the oil storage chamber 407, thereby squeezing the oil in the oil storage chamber 407 and causing it to be over-pressurized and discharged into multiple rubber cylinders 401, causing multiple rubber cylinders 401 to expand and increase rigidity. At the same time, multiple damping plates 400 abut against the workpiece. When subjected to vibration force, it will be transmitted to the surface of the damping plate 400 and absorbed by the connecting seat 404, transmitting the vibration force to the tension spring 406 and the oil in the hydraulic cylinder 403, absorbing the resonance force.

[0056] S4. The level sensor 204 detects the levelness of the lifting device 106 in real time. When the lifting device 106 swings or tilts, the blower 200 can be operated to supply air into the air pipe 202 to multiple semi-rotary jet pipes 206 to counteract the swing force. Specifically, when the level sensor 204 detects that the lifting device 106 swings left and right, the controller 205 operates the electric push rod 214 to move, pushing the slide plate 213 to move, which in turn drives multiple limit rods 211 to move. Through the limitation of the movable groove 212, the crank 210 is driven by one The end moves to drive the rotating rod 209 to rotate. The two semi-rotary jet pipes 206 at both ends of the lifting device 106 need to be operated to face opposite directions. The two blowers 200 are connected in series through the series air pipe 201, so that multiple semi-rotary jet pipes 206 at one end draw in air while multiple semi-rotary jet pipes 206 at the other end spray air. When the lifting device 106 swings to the left, the semi-rotary jet pipe 206 on the left side sprays air while the other side draws in air. That is, when the lifting device 106 swings in any direction, the semi-rotary jet pipe 206 in that swing direction sprays air to counteract the swing force.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-span bridge crane for ports, comprising a bridge frame (100) and a spreading device (106), characterized in that, Also includes: The fan (200) has two components, both of which are set on the top of the hanger (106) and connected in series by a series air pipe (201). Both ends of the hanger (106) are provided with a plurality of semi-rotary jet pipes (206) that can transport gas. Both ends of the hanger (106) are fixedly connected with a gas collection pipe (203) for supporting the plurality of semi-rotary jet pipes (206). The gas collection pipe (203) is provided with an anti-sway component that adjusts the orientation of the semi-rotary jet pipes (206) according to the swing of the hanger (106). A clamping plate (300) is provided inside the lifting device (106) for clamping the workpiece. A slant frame (302) is fixedly connected inside the lifting device (106), and an auxiliary component for supporting the clamping plate (300) is provided on the outer surface of the slant frame (302). The shock absorber (400) has multiple components evenly arranged on one side of the clamping plate (300). The clamping plate (300) has a connecting seat (404) connected to the shock absorber (400) inside, and a hydraulic cylinder (403) for sliding connection of the connecting seat (404) is provided inside the clamping plate (300). The clamping plate (300) has a shock-absorbing component for supplying oil to the hydraulic cylinder (403) inside. The anti-sway assembly includes multiple positioning nozzles (208) connected to the top of the gas collection pipe (203) for rotating connection of the semi-rotary jet pipes (206), and the bottom of the multiple semi-rotary jet pipes (206) is connected to the air intake cones (207) for gas entry. The gas collection pipe (203) is connected to the fan (200) through the gas delivery pipe (202). The gas collection pipe (203) is slidably connected to the inside of the gas collection pipe (203), and multiple limiting rods (211) are fixedly connected to one side of the sliding plate (213). The bottom of the multiple air intake cones (207) is fixedly connected to the rotating rods (209) that are rotatably connected to the gas collection pipe (203). The outer surface of the rotating rods (209) is fixedly connected to the crank (210), and the inside of the crank (210) is provided with a movable groove (212) that is slidably connected to the limiting rods (211). A level sensor (204) is fixedly connected to the top of the lifting device (106), and a controller (205) is fixedly connected to the top of the lifting device (106). An electric push rod (214) is fixedly connected inside the air manifold (203), and the output end of the electric push rod (214) is fixedly connected to the slide plate (213). The controller (205) receives feedback from the level sensor (204) and controls the operation of the fan (200) and the electric push rod (214).

2. A long-span bridge crane for ports according to claim 1, characterized in that: The auxiliary component includes an inclined guide groove (303) formed on the outer surface of the inclined frame (302), and each inclined guide groove (303) is slidably connected to a movable seat (304). A connecting plate (305) is connected to multiple movable seats (304). The connecting plate (305) is connected to the clamping plate (300) and moves together. The inclined guide groove (303) is constructed as an inclined surface.

3. A long-span bridge crane for ports according to claim 2, characterized in that: A vertical electric rail (307) is fixedly connected to one side of the clamp (300), and a slider (306) that is fixedly connected to the connecting plate (305) is slidably connected to the outer surface of the vertical electric rail (307).

4. A long-span bridge crane for ports according to claim 3, characterized in that: The shock absorption assembly includes an oil storage chamber (407) opened inside the clamp (300), and the oil storage chamber (407) is used to store oil. A plurality of rubber cylinders (401) are fixedly connected to one side of the clamp (300), and the plurality of rubber cylinders (401) are connected to the oil storage chamber (407). The plurality of rubber cylinders (401) are connected to the oil cylinder (403) through an oil passage groove (402). A piston plate (405) is fixedly connected to one end of the connecting seat (404) located inside the oil cylinder (403), and a tension spring (406) fixedly connected to the oil cylinder (403) is fixedly connected to one end of the piston plate (405).

5. A long-span bridge crane for ports according to claim 4, characterized in that: The oil storage chamber (407) is slidably connected to an oil pusher plate (408) for squeezing oil. One side of the oil pusher plate (408) is rotatably connected to a screw (409) threadedly connected to a clamping plate (300), and one end of the screw (409) is fixedly connected to a pull handle (410). The top of the slider (306) is fixedly connected to a top plate (412), and the top of the top plate (412) is fixedly connected to a guide rod (413). One end of the pull handle (410) is provided with a limiting groove (411) for sliding connection of the guide rod (413).

6. A long-span bridge crane for ports according to claim 1, characterized in that: The top of the bridge frame (100) is provided with a moving cart (103), and a hoist (104) is rotatably connected inside the moving cart (103). A geared motor (105) for driving the hoist (104) to rotate is fixedly connected to one side of the moving cart (103). The hoist (104) is fixedly connected to the lifting device (106) by a steel wire.

7. A long-span bridge crane for ports according to claim 6, characterized in that: The bottom of the cable tray (100) is fixedly connected to a plurality of legs (101), and the top of the cable tray (100) is fixedly connected to a main beam frame (102), which is used to support the moving vehicle (103) for sliding.

8. A method for lifting long-span bridge cranes in ports, employing a long-span bridge crane as described in any one of claims 1-7, characterized in that... Includes the following steps: S1. Lower the lifting device (106) by operating it; S2, push the clamping plate (300) to clamp the object being extruded, during which the auxiliary components support the clamping plate (300); S3. Multiple damping pads (400) simultaneously contact the workpiece. When subjected to vibration force, the vibration force is transmitted to the surface of the damping pads (400) and absorbed by the connecting seat (404). The vibration force is transmitted to the oil in the oil cylinder (403) and the resonance force is absorbed. S4. When the lifting device (106) swings, the anti-sway component operates the control fan (200) to spray air into multiple semi-rotating jet pipes (206) to counteract the swing force.

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