Self-adjustable floating crane anti-swing device and anti-swing method thereof

Abstract

The invention relates to the technical field of crane anti-swing, in particular to a self-adjusting floating crane anti-swing device and an anti-swing method thereof.The self-adjusting floating crane anti-swing device comprises a mounting frame, a transverse moving mechanism, a longitudinal moving mechanism and two push rods, and the mounting frame is mounted on a rotating arm. According to the principle that the arc-shaped bottom of the ship body and the ship body can only swing transversely or longitudinally mostly, when the ship body swings longitudinally or transversely, original regular swing is destroyed through staggered high-frequency pushing, so that objects on the ship body swing no longer regularly, the objects can be pulled by force in multiple directions, the swing amplitude is reduced, and danger is avoided. And in order to ensure the wrong pushing without enabling the pushing direction to be the same as the original swinging direction, through the action of the sum, switching power is enabled to be in AND-OR connection while the steering is switched, so that the situation that the swinging amplitude is increased due to the same-direction pushing is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of crane anti-sway, and particularly relates to an adjustable floating crane anti-sway device and an anti-sway method thereof. Background Art

[0002] The anti-sway of offshore cranes aims to solve the swaying problem that occurs during the hoisting and transportation process, ensure that there is no large swing during the hoisting and transportation process, and ensure the safety of operators. Therefore, crane anti-sway is quite important, which can effectively avoid safety accidents caused by swaying and ensure the normal progress of work. The main reason for the sway of offshore cranes is the flow of seawater, which drives the hull to sway, and ultimately affects the swing of the crane's rotating arm. Although the amplitude of the hull sway is small, due to the rotating arm being in a relatively high position, even a slight sway will cause a relatively large swing amplitude.

[0003] Conventional anti-sway methods are completed by constant-speed hoisting and load reduction. However, these two methods have many limitations, resulting in a large limitation on the hoisted items and their speeds. And sometimes it is only after the item sways after being lifted that it is known whether anti-sway is needed, and the above two methods cannot anti-sway in time and are still prone to danger. Therefore, an adjustable floating crane anti-sway device and an anti-sway method thereof are needed, which can quickly anti-sway when sway occurs and avoid large swings of items and cause danger to personnel. Summary of the Invention

[0004] Aiming at the above existing technical deficiencies, the purpose of the present invention is to provide an adjustable floating crane anti-sway device and an anti-sway method thereof, which can quickly anti-sway when sway occurs and avoid large swings of items and cause danger to personnel.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: The present invention provides an adjustable floating crane anti-sway device and an anti-sway method thereof, including a mounting frame, a transverse moving mechanism, a longitudinal moving mechanism, and two push rods. The mounting frame is installed on the rotating arm. The transverse moving mechanism is installed on the mounting frame so as to be able to move transversely. The longitudinal moving mechanism is installed on the displacement plate of the transverse moving mechanism. The transverse moving mechanism drives the longitudinal moving mechanism to move transversely through the displacement plate. A support frame for longitudinal movement is provided on the longitudinal moving mechanism. The two push rods are rotatably installed on the support frame through a rotating mechanism. The support frame is used to drive the two push rods to move longitudinally, and the rotating mechanism is used to drive the two push rods to rotate 90 degrees simultaneously.

[0006] Preferably, a power switching mechanism is further included. The power switching mechanism is fixedly installed on the displacement plate. The power switching mechanism includes a spline sleeve, a first spline shaft and a second spline shaft. The second spline shaft is fixedly connected with the transverse moving mechanism. The first spline shaft is fixedly connected with the longitudinal moving mechanism. The spline sleeve is located between the second spline shaft and the first spline shaft. The spline sleeve is slidably installed on the displacement plate through a guide seat. The spline sleeve is used for slidably clamping on the outer edge of the second spline shaft or the first spline shaft. A rotatable gear is fixedly arranged on the displacement plate. The spline sleeve is in transmission connection with the rotatable gear through a transmission gear. A return spring for pushing the transmission gear close to the first spline shaft is sleeved on the outer edge of the spline sleeve. A push plate capable of horizontally pushing the spline sleeve is arranged on the displacement plate. The push plate is in transmission connection with the rotating mechanism.

[0007] Preferably, the rotating mechanism includes an electric push rod, a rotator and a fixed rod. The rotator is fixedly installed at the bottom of the support frame. The output end of the rotator is fixedly connected with one of the push rods. The fixed rod is fixedly connected with the other push rod through a rotating shaft. The rotating shaft is rotatably connected with the support frame. The guide post is slidably installed on the support frame through a mounting seat. One end of the guide post is hinged with a hinged rod. One end of the hinged rod is hinged with the fixed rod. The electric push rod is fixedly installed on the mounting seat. The output end of the electric push rod is fixedly connected with the guide post. The push plate is fixedly installed at the end of the guide post.

[0008] Preferably, the transverse moving mechanism includes a rack, a gear, a fixed frame and a guide rail. The guide rail is fixedly installed on the mounting frame. The displacement plate is fixedly connected with the fixed frame. The fixed frame is slidably connected with the guide rail. The gear is fixedly connected with the second spline shaft through a connecting shaft. The connecting shaft is rotatably installed on the displacement plate. The rack is fixedly connected with the mounting frame through a bottom plate. The gear meshes with the rack.

[0009] Preferably, the longitudinal moving mechanism includes a threaded rod and a threaded plate. The threaded rod is rotatably installed on the displacement plate. The threaded plate is meshed and connected with the threaded rod. The threaded plate is fixedly connected with the bottom of the support frame. An expansion tube is arranged between the support frame and the fixed frame.

[0010] Preferably, an angle adjusting mechanism and a distance adjusting mechanism are further included. The angle adjusting mechanism is fixedly installed on the rotating arm. The distance adjusting mechanism is fixedly installed on the rotating seat. The mounting frame is fixedly connected with the sliding shaft of the distance adjusting mechanism.

[0011] Preferably, the distance adjusting mechanism includes two symmetrically arranged single-sided locking mechanisms. Each single-sided locking mechanism includes a pressing plate, an anti-slip plate and an electric pull rod. The electric pull rod is fixedly installed on the rotating seat. The sliding shaft is slidably connected with the rotating seat. The mounting frame is fixedly installed at the end of the sliding shaft. The anti-slip plate is fixedly installed on the mounting frame. The pressing plate is fixedly installed at the output end of the electric pull rod.

[0012] Preferably, the angle adjustment mechanism includes a driven gear, two driving gears and two dual-axis reducers. The driven gear is fixedly mounted on a rotating seat. The driven gear is rotationally connected to the side of the rotating arm through a support shaft. The driving gear is rotationally connected to the driven gear. The driving gear is fixedly mounted on the output shaft of the dual-axis reducer. A motor is fixedly mounted on the input end of the dual-axis reducer.

[0013] A method for eliminating sway of a self-adjustable floating crane sway elimination device comprises the following steps: Step 1: After the angle of the rotating arm is adjusted, the pressure plate and the anti-slip plate are separated, the angle adjustment mechanism rotates to change the angle, and the cable pulls the sliding shaft to slide along the rotating seat to adjust the position. After the rotation is completed, the pressure plate is pulled to clamp the anti-slip plate; Step 2: The cable shakes laterally, the spline sleeve is engaged with the spline shaft, and the rotating gear drives the threaded rod to rotate forward and reverse, so that the support frame drives the push rod to move back and forth longitudinally, and the push rod moves longitudinally at a high frequency; Step 3: The cable shakes longitudinally, and the rotating mechanism pulls the push rod to rotate 90 degrees. At the same time, the rotating mechanism pushes the spline sleeve to engage with the second spline shaft through the push plate; Step 4: The rotating gear drives the displacement plate to move back and forth horizontally through the gear, and the push rod moves the cable horizontally at high frequency.

[0014] The beneficial effects of the present invention are as follows: the self-adjustable floating crane anti-sway device and anti-sway method utilize the arc-shaped bottom of the hull and the principle that the hull can only swing horizontally or longitudinally most of the time. When longitudinal or horizontal swing occurs, the original regular swing is destroyed by high-frequency pushing in the wrong direction, so that the objects on it no longer swing regularly, and can be pulled by forces in multiple directions, thereby reducing the swing amplitude and avoiding danger. And in order to ensure the wrong-direction pushing without making the pushing direction of the same as the original swing direction of the, through the effects of and, while switching the steering direction, the switching power is connected to or to avoid the swing amplitude increased by pushing in the same direction. And when the angle changes, by separating and, the position can be automatically adjusted during the rotation process, ensuring the displacement accuracy of and no complicated calculation process occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is the front view of the installation state of the present invention.

[0017] Figure 2 Schematic three-dimensional structure diagram of the installation state of the present invention.

[0018] Figure 3 Schematic three-dimensional structure diagram after the push rod rotates.

[0019] Figure 4 Top view of the present invention.

[0020] Figure 5 Schematic three-dimensional structure diagram of the power switching mechanism.

[0021] Figure 6 Schematic three-dimensional structure diagram of the rotating mechanism and the longitudinal moving mechanism.

[0022] Figure 7 Schematic three-dimensional structure diagram of the rotating mechanism.

[0023] Figure 8 Schematic three-dimensional structure diagram of the lateral moving mechanism.

[0024] Figure 9 Schematic three-dimensional structure diagram of the longitudinal moving mechanism.

[0025] Figure 10 Schematic three-dimensional structure diagram of the angle adjustment mechanism.

[0026] Figure 11 Schematic three-dimensional structure diagram of the distance adjustment mechanism.

[0027] Explanation of reference numerals: 1, rotating arm; 2, cable; 3, angle adjustment mechanism; 3a, rotating base; 3b, driven gear; 3c, driving gear; 3d, double-shaft speed reducer; 4, distance adjustment mechanism; 4a, sliding shaft; 4b, pressing plate; 4c, anti-slip plate; 4d, electric pull rod; 5, mounting bracket; 6, lateral moving mechanism; 6a, displacement plate; 6b, rack; 6c, gear; 6d, fixing bracket; 6e, guide rail; 7, longitudinal moving mechanism; 7a, support frame; 7b, threaded rod; 7c, threaded plate; 7d, telescopic tube; 8, push rod; 9, rotating mechanism; 9a, electric push rod; 9b, rotator; 9c, articulated rod; 9d, fixed rod; 9e, mounting seat; 9f, guide post; 10, power switching mechanism; 10a, spline sleeve; 10b, push plate; 10c, return spring; 10d, guide seat; 10e, transmission gear; 10f, spline shaft one; 10h, spline shaft two; 11, rotating gear. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment: The present invention provides an adjustable floating crane anti-sway device. As Figures 1-3 shown, it includes a mounting frame 5, a transverse moving mechanism 6, a longitudinal moving mechanism 7, and two push rods 8. The mounting frame 5 is installed on the rotating arm 1. The transverse moving mechanism 6 is installed on the mounting frame 5 in a manner that can move transversely. The longitudinal moving mechanism 7 is installed on the displacement plate 6a of the transverse moving mechanism 6. The transverse moving mechanism 6 drives the longitudinal moving mechanism 7 to move transversely through the displacement plate 6a. A support frame 7a for longitudinal movement is provided on the longitudinal moving mechanism 7. The two push rods 8 are rotatably installed on the support frame 7a through a rotating mechanism 9. The support frame 7a is used to drive the two push rods 8 to move longitudinally, and the rotating mechanism 9 is used to drive the two push rods 8 to rotate 90 degrees simultaneously. As Figure 2 and Figure 3 shown, the states of the rotating mechanism 9 are the states before and after the rotation of the rotating mechanism 9 respectively. When the cable 2 undergoes a transverse swing, the two rotating mechanisms 9 will present the state as Figure 2 shown. At this time, in order to eliminate the sway, the longitudinal moving mechanism 7 is used to push the two push rods 8 to move longitudinally, so that the original regular swing is broken by the longitudinal movement, and thus the transverse swing amplitude of the cable 2 can be reduced. When the cable 2 undergoes a longitudinal swing, the push rods 8 will rotate to the state as Figure 3 shown. At this time, by operating the transverse moving mechanism 6 again, the push rods 8 can be moved transversely to destroy the original regular longitudinal movement. The movement of the transverse moving mechanism 6 and the longitudinal moving mechanism 7 to drive the push rods 8 to move is a high-frequency short-distance movement. This method does not require a large thrust, but can achieve a good anti-sway effect.

[0030] If the cable 2 undergoes a transverse movement and the rotating mechanism 9 does not push the cable 2 to move longitudinally, this will increase the swing amplitude of the cable 2 and cause more serious consequences. Similarly, if the cable 2 undergoes a longitudinal movement and the rotating mechanism 9 pushes the cable 2 to move longitudinally, it will also cause more serious consequences. In order to avoid this situation, a safer method needs to be adopted. For this purpose, as Figures 4-6As shown, it further includes a power switching mechanism 10. The power switching mechanism 10 is fixedly installed on the displacement plate 6a. The power switching mechanism 10 includes a spline sleeve 10a, a first spline shaft 10f, and a second spline shaft 10h. The second spline shaft 10h is fixedly connected to the lateral movement mechanism 6, and the first spline shaft 10f is fixedly connected to the longitudinal movement mechanism 7. The spline sleeve 10a is located between the second spline shaft 10h and the first spline shaft 10f. The spline sleeve 10a is installed on the displacement plate 6a through a guide seat 10d and can slide horizontally. The spline sleeve 10a is used for sliding and clamping on the outer edge of the second spline shaft 10h or the first spline shaft 10f. A rotatable gear 11 is fixedly arranged on the displacement plate 6a. The spline sleeve 10a is drivingly connected to the rotatable gear 11 through a transmission gear 10e. A return spring 10c for pushing the transmission gear 10e close to the first spline shaft 10f is sleeved on the outer edge of the spline sleeve 10a. A push plate 10b capable of horizontally pushing the spline sleeve 10a is arranged on the displacement plate 6a. The push plate 10b is drivingly connected to the rotation mechanism 9. When the rotation mechanism 9 drives the two push rods 8 to rotate and switch positions, the spline sleeve 10a can be pushed to switch by driving the push plate 10b. When the rotation mechanism 9 rotates to Figure 2 the state shown, when the push plate 10b pushes the spline sleeve 10a to be clamped with the second spline shaft 10h, the rotatable gear 11 will drive the second spline shaft 10h to rotate through the transmission gear 10e, so that the lateral movement mechanism 6 can work. At this time, the spline sleeve 10a is separated from the first spline shaft 10f, that is, the longitudinal movement mechanism 7 stops working. On the contrary, when the push rod 8 rotates to Figure 3 the state shown, the spline sleeve 10a is clamped with the first spline shaft 10f, the longitudinal movement mechanism 7 works, and the lateral movement mechanism 6 stops working. Through the above switching method, it is ensured that when the cable 2 moves laterally, the push rod 8 can only perform longitudinal displacement. On the contrary, when the cable 2 moves longitudinally, the push rod 8 can only perform lateral displacement, ensuring the safety of the anti-swing process and preventing the swing amplitude from increasing. Among them, the rotation of the rotatable gear 11 is driven by a power mechanism installed on the displacement plate 6a.

[0031] In order to ensure that when the two push rods 8 are driven to rotate by the rotation mechanism 9, the spline sleeve 10a can be switched. Therefore, as shown in Figure 6 and Figure 7As shown, the rotating mechanism 9 includes an electric push rod 9a, a rotator 9b, and a fixing rod 9d. The rotator 9b is fixedly installed at the bottom of the support frame 7a. The output end of the rotator 9b is fixedly connected to one of the push rods 8. The fixing rod 9d is fixedly connected to the other push rod 8 through a rotating shaft, and the rotating shaft is rotatably connected to the support frame 7a. The guide post 9f is horizontally slidably installed on the support frame 7a through a mounting seat 9e. One end of the guide post 9f is hinged with a hinged rod 9c, and one end of the hinged rod 9c is hinged with the fixing rod 9d. The electric push rod 9a is fixedly installed on the mounting seat 9e, and the output end of the electric push rod 9a is fixedly connected to the guide post 9f. The push plate 10b is fixedly installed at the end of the guide post 9f. When the push rod 8 is in Figure 2 the state shown, the push plate 10b will be in Figure 6 the state shown. At this time, the longitudinal moving mechanism 7 will operate, and the longitudinal moving mechanism 7 will push the two push rods 8 to move longitudinally. When the push rod 8 needs to be switched, one of the push rods 8 is driven to rotate by the rotator 9b, and the rotation of the other push rod 8 is driven by the electric push rod 9a to drive the guide post 9f to move, so that the guide post 9f horizontally pushes the push plate 10b, and the push plate 10b will push the spline sleeve 10a to be clamped with the spline shaft two 10h, enabling the transverse moving mechanism 6 to operate. The transverse moving mechanism 6 pushes the two push rods 8 to move transversely. That is, it is ensured that when the two push rods 8 are driven to rotate by the rotating mechanism 9, the spline sleeve 10a can be switched.

[0032] It should be noted that when the longitudinal moving mechanism 7 drives the support frame 7a to move reciprocally, the support frame 7a will drive the entire rotating mechanism 9 to move, which will drive the push plate 10b to move longitudinally reciprocally. The moving amplitude is small and will not completely separate the spline sleeve 10a from the spline shaft one 10f.

[0033] As Figure 8 shown, the transverse moving mechanism 6 includes a rack 6b, a gear 6c, a fixing frame 6d, and a guide rail 6e. The guide rail 6e is fixedly installed on the mounting frame 5. The displacement plate 6a is fixedly connected to the fixing frame 6d, and the fixing frame 6d is slidably connected to the guide rail 6e. The gear 6c is fixedly connected to the spline shaft two 10h through a connecting shaft, and the connecting shaft is rotatably installed on the displacement plate 6a. The rack 6b is fixedly connected to the mounting frame 5 through a bottom plate, and the gear 6c meshes with the rack 6b. When the displacement plate 6a needs to move transversely, by driving the spline shaft two 10h to rotate, the gear 6c can be made to move horizontally on the rack 6b, so that the gear 6c drives the displacement plate 6a and the fixing frame 6d to slide horizontally along the guide rail 6e. When the displacement plate 6a moves, it will drive all the mechanisms installed on it to move, enabling the two push rods 8 to move along with it.

[0034] As Figure 9As shown, the longitudinal movement mechanism 7 includes a threaded rod 7b and a threaded plate 7c, the threaded rod 7b is rotatably mounted on the displacement plate 6a, the threaded plate 7c is meshed and connected with the threaded rod 7b, the threaded plate 7c is fixedly connected to the bottom of the support frame 7a, and a telescopic tube 7d is provided between the support frame 7a and the fixed frame 6d, and the telescopic tube 7d is used to guide the horizontal movement of the support frame 7a. When the spline shaft 10f drives the threaded rod 7b to rotate, the threaded rod 7b will drive the threaded plate 7c to rotate, so that the support frame 7a slides back and forth through the telescopic tube 7d.

[0035] If the mounting frame 5 is directly fixed on the rotating arm 1, when the angle of the rotating arm 1 changes, the angle between the cables 2 will also change, which causes the distance and angle between the mounting frame 5 and the cables 2 to change. In order to ensure that the cables 2 are maintained between the two push rods 8, for example Figure 10 As shown, the device further comprises an angle adjustment mechanism 3 and a distance adjustment mechanism 4. The angle adjustment mechanism 3 is fixedly mounted on the rotating arm 1, the distance adjustment mechanism 4 is fixedly mounted on the rotating seat 3a, and the mounting frame 5 is fixedly connected to the sliding shaft 4a of the distance adjustment mechanism 4. When the angle of the rotating arm 1 changes, the angle adjustment mechanism 3 works first, so that the rotating seat 3a drives the distance adjustment mechanism 4 to rotate, and the sliding shaft 4a on the distance adjustment mechanism 4 rotates to be perpendicular to the cable 2, and then the distance adjustment mechanism 4 works again, so that the straightened cable 2 can be stuck between the two push rods 8.

[0036] The device is in a high position, and the angle of rotation of the rotating seat 3a can be judged by a level meter, and the distance adjustment mechanism 4 needs to move. Figure 11 As shown, the distance adjustment mechanism 4 includes two symmetrically arranged single-sided locking mechanisms, each of which includes a pressure plate 4b, an anti-slip plate 4c and an electric pull rod 4d, the electric pull rod 4d is fixedly mounted on the rotating seat 3a, the sliding shaft 4a is slidingly connected to the rotating seat 3a, the mounting frame 5 is fixedly mounted on the end of the sliding shaft 4a, the anti-slip plate 4c is fixedly mounted on the mounting frame 5, and the pressure plate 4b is fixedly mounted on the output end of the electric pull rod 4d. Before the angle adjustment mechanism 3 rotates, the pressing plate 4b and the anti-slip plate 4c are separated first. During the rotation of the angle adjustment mechanism 3, since the cable 2 is in a straightened state, the push rod 8 drives the mounting frame 5 to slide horizontally, and the movement of the mounting frame 5 is horizontally guided by the sliding shaft 4a and the rotating seat 3a. After the angle adjustment mechanism 3 rotates to the right position, that is, at this time, the position of the distance adjustment mechanism 4 is also adjusted. Finally, it is only necessary to pull the pressing plate 4b and the anti-slip plate 4c to contact each other by the electric pull rod 4d, that is, the rotating seat 3a and the sliding shaft 4a are locked, to complete the adjustment of the distance adjustment mechanism 4. This adjustment method uses the straightening effect of the cable 2 to replace complex calculations and is more accurate.

[0037] As Figure 10 shown, the angle adjustment mechanism 3 includes a driven gear 3b, two driving gears 3c and two double-shaft speed reducers 3d. The driven gear 3b is fixedly installed on the rotating seat 3a. The driven gear 3b is rotatably connected to the side surface of the rotating arm 1 through a support shaft. The driving gear 3c is rotatably connected to the driven gear 3b. The driving gear 3c is fixedly installed on the output shaft of the double-shaft speed reducer 3d. A motor is fixedly installed at the input end of the double-shaft speed reducer 3d. By rotating through the double-shaft speed reducer 3d, the rotating seat 3a can be driven to rotate through the driving gear 3c and the driven gear 3b.

[0038] A sway elimination method for a self-adjustable floating crane sway elimination device, characterized by comprising the following steps: Step 1: After the angle of the rotating arm 1 is adjusted, the pressure plate 4b and the anti-slip plate 4c are separated. The angle adjustment mechanism 3 rotates to change the angle. The cable 2 pulls the sliding shaft 4a to slide along the rotating seat 3a to adjust the position. After the rotation ends, the pressure plate 4b is pulled to clamp with the anti-slip plate 4c; Step 2: When the cable 2 sways horizontally, the spline sleeve 10a is clamped with the first spline shaft 10f. The rotating gear 11 drives the threaded rod 7b to rotate forward and backward, so that the support frame 7a drives the push rod 8 to move longitudinally back and forth, and the push rod 8 makes high-frequency longitudinal movements; Step 3: When the cable 2 sways longitudinally, the rotating mechanism 9 pulls the push rod 8 to rotate 90 degrees. The rotating mechanism 9 simultaneously pushes the spline sleeve 10a to be clamped with the second spline shaft 10h through the push plate 10b; Step 4: The rotating gear 11 drives the displacement plate 6a to move back and forth horizontally through the gear 6c, and the push rod 8 makes high-frequency horizontal movements on the cable 2.

[0039] For the self-adjustable floating crane sway elimination device and its sway elimination method, using the arc-shaped bottom of the hull, the principle that the hull can only swing horizontally or longitudinally most of the time. When there is a longitudinal or horizontal swing, by pushing the push rod 8 in a misaligned high frequency, the push rod 8 destroys the original regular swing, making the swing of the items on the cable 2 no longer regular, so that the cable 2 can be pulled by forces in multiple directions, reducing the swing amplitude and avoiding danger. And in order to ensure that the push rod 8 is pushed in a misaligned direction and will not make the pushing direction of the push rod 8 the same as the original swing direction of the cable 2, through the action of the rotating mechanism 9 and the power switching mechanism 10, while the push rod 8 switches the steering, the power switching mechanism 10 switches the power to be connected with the horizontal moving mechanism 6 or the longitudinal moving mechanism 7, avoiding pushing in the same direction and increasing the swing amplitude of the cable 2. And when the angle of the rotating arm 1 changes, by separating the pressure plate 4b and the anti-slip plate 4c, the position of the mounting frame 5 can be automatically adjusted through the angle adjustment mechanism 3 during the rotation process, ensuring the accurate displacement of the push rod 8 and avoiding complex calculation processes.

[0040] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. An adjustable anti-sway device for a floating crane, characterized in that, It includes a mounting bracket (5), a lateral movement mechanism (6), a longitudinal movement mechanism (7) and two push rods (8). The mounting bracket (5) is mounted on the rotating arm (1). The lateral movement mechanism (6) is mounted on the mounting bracket (5) in a manner that allows lateral movement. The longitudinal movement mechanism (7) is mounted on the displacement plate (6a) of the lateral movement mechanism (6). The lateral movement mechanism (6) drives the longitudinal movement mechanism (7) to move laterally through the displacement plate (6a). A support frame (7a) for longitudinal movement is provided on the longitudinal movement mechanism (7). The two push rods (8) are rotatably mounted on the support frame (7a) through a rotating mechanism (9). The support frame (7a) is used to drive the two push rods (8) to move longitudinally, and the rotating mechanism (9) is used to drive the two push rods (8) to rotate 90 degrees simultaneously.

2. The self-adjustable anti-sway device for a floating crane according to claim 1, wherein, It further includes a power switching mechanism (10). The power switching mechanism (10) is fixedly mounted on the displacement plate (6a). The power switching mechanism (10) includes a spline sleeve (10a), a first spline shaft (10f) and a second spline shaft (10h). The second spline shaft (10h) is fixedly connected to the lateral movement mechanism (6). The first spline shaft (10f) is fixedly connected to the longitudinal movement mechanism (7). The spline sleeve (10a) is located between the second spline shaft (10h) and the first spline shaft (10f). The spline sleeve (10a) is slidably mounted on the displacement plate (6a) through a guide seat (10d). The spline sleeve (10a) is used to slidably engage with the outer edge of the second spline shaft (10h) or the first spline shaft (10f). A rotatable rotating gear (11) is fixedly provided on the displacement plate (6a). The spline sleeve (10a) is in transmission connection with the rotating gear (11) through a transmission gear (10e). A return spring (10c) for pushing the transmission gear (10e) towards the first spline shaft (10f) is sleeved on the outer edge of the spline sleeve (10a). A push plate (10b) capable of horizontally pushing the spline sleeve (10a) is provided on the displacement plate (6a). The push plate (10b) is in transmission connection with the rotating mechanism (9).

3. The self-adjustable anti-sway device for a floating crane according to claim 2, wherein, The rotating mechanism (9) includes an electric push rod (9a), a rotator (9b) and a fixed rod (9d). The rotator (9b) is fixedly mounted at the bottom of the support frame (7a). The output end of the rotator (9b) is fixedly connected to one of the push rods (8). The fixed rod (9d) is fixedly connected to the other push rod (8) through a rotating shaft. The rotating shaft is rotatably connected to the support frame (7a). A guide post (9f) is slidably mounted on the support frame (7a) through a mounting seat (9e). One end of the guide post (9f) is hinged with a hinge rod (9c). One end of the hinge rod (9c) is hinged with the fixed rod (9d). The electric push rod (9a) is fixedly mounted on the mounting seat (9e). The output end of the electric push rod (9a) is fixedly connected to the guide post (9f). The push plate (10b) is fixedly mounted at the end of the guide post (9f).

4. The self-adjustable anti-sway device for a floating crane according to claim 3, characterized in that, The lateral movement mechanism (6) includes a rack (6b), a gear (6c), a fixed frame (6d) and a guide rail (6e). The guide rail (6e) is fixedly installed on the mounting frame (5). The displacement plate (6a) is fixedly connected to the fixed frame (6d). The fixed frame (6d) is slidably connected to the guide rail (6e). The gear (6c) is fixedly connected to the spline shaft two (10h) through a connecting shaft. The connecting shaft is rotatably installed on the displacement plate (6a). The rack (6b) is fixedly connected to the mounting frame (5) through a bottom plate. The gear (6c) meshes with the rack (6b).

5. An adjustable anti-sway device for a floating crane according to claim 4, characterized in that, The longitudinal movement mechanism (7) includes a threaded rod (7b) and a threaded plate (7c). The threaded rod (7b) is rotatably installed on the displacement plate (6a). The threaded plate (7c) is meshed and connected with the threaded rod (7b). The threaded plate (7c) is fixedly connected to the bottom of the support frame (7a). An expansion tube (7d) is provided between the support frame (7a) and the fixed frame (6d).

6. The self-adjustable anti-sway device for a floating crane according to claim 3, characterized in that, It further includes an angle adjustment mechanism (3) and a distance adjustment mechanism (4). The angle adjustment mechanism (3) is fixedly installed on the rotating arm (1). The distance adjustment mechanism (4) is fixedly installed on the rotating base (3a). The mounting frame (5) is fixedly connected to the sliding shaft (4a) of the distance adjustment mechanism (4).

7. The self-adjustable anti-sway device for a floating crane according to claim 6, characterized in that, The distance adjustment mechanism (4) includes two single-sided locking mechanisms arranged symmetrically. Each single-sided locking mechanism includes a pressing plate (4b), an anti-slip plate (4c) and an electric pull rod (4d). The electric pull rod (4d) is fixedly installed on the rotating base (3a). The sliding shaft (4a) is slidably connected to the rotating base (3a). The mounting frame (5) is fixedly installed at the end of the sliding shaft (4a). The anti-slip plate (4c) is fixedly installed on the mounting frame (5). The pressing plate (4b) is fixedly installed at the output end of the electric pull rod (4d).

8. The self-adjustable anti-sway device for a floating crane according to claim 6, characterized in that, The angle adjustment mechanism (3) includes a driven gear (3b), two driving gears (3c) and two double-shaft speed reducers (3d). The driven gear (3b) is fixedly installed on the rotating base (3a). The driven gear (3b) is rotatably connected to the side of the rotating arm (1) through a support shaft. The driving gear (3c) is rotatably connected to the driven gear (3b). The driving gear (3c) is fixedly installed on the output shaft of the double-shaft speed reducer (3d). A motor is fixedly installed at the input end of the double-shaft speed reducer (3d).

9. A swing elimination method for a swing elimination device of a self - adjustable floating crane according to claim 7, characterized in that, It includes the following steps: Step 1: After the angle of the rotating arm (1) is adjusted, the pressing plate (4b) is separated from the anti-slip plate (4c). The angle adjustment mechanism (3) rotates to change the angle. The cable (2) pulls the sliding shaft (4a) to slide along the rotating base (3a) to adjust the position. After the rotation ends, the pressing plate (4b) is pulled to clamp with the anti-slip plate (4c). Step 2: When the cable (2) shakes laterally, the spline sleeve (10a) is clamped with the spline shaft one (10f). The rotating gear (11) drives the threaded rod (7b) to rotate forward and backward, so that the support frame (7a) drives the push rod (8) to move longitudinally back and forth, and the push rod (8) moves longitudinally at a high frequency. Step 3: When the cable (2) undergoes longitudinal shaking, the rotating mechanism (9) pulls the push rod (8) to rotate by 90 degrees. At the same time, the rotating mechanism (9) pushes the spline sleeve (10a) through the push plate (10b) to engage with the second spline shaft (10h); Step 4: The rotating gear (11) drives the displacement plate (6a) to reciprocate horizontally through the gear (6c), and the push rod (8) performs high-frequency horizontal movement on the cable (2).

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