Bridge crane for transferring steel plates for offshore wind turbine single pile production

Abstract

The invention discloses a bridge crane for transferring a steel plate for offshore wind turbine single pile production, and relates to the field of bridge cranes, the bridge crane comprises a walking beam, the walking beam is mounted on a track to move, a balance adjusting mechanism is arranged below the walking beam, and an auxiliary hoisting mechanism and a positioning mechanism are mounted on the balance adjusting mechanism. According to the bridge crane for transferring the steel plates for offshore wind turbine single-pile production, the adjusting mechanism is adopted, the distance between the first electromagnetic chuck and the second electromagnetic chuck can be adjusted, so that the bridge crane can adapt to hoisting and fixing of steel plates with different lengths, and a balance adjusting mechanism is matched, so that the steel plates can be transferred in the steel plate hoisting process; when the gravity center of the steel plate deviates from the hoisting center, automatic adjustment of the positions of the first electromagnetic chuck and the second electromagnetic chuck is achieved, so that automatic adjustment of the gravity center of the steel plate is achieved, inclination of steel plate hoisting caused by non-coincidence of the gravity center of the steel plate and the hoisting center is avoided, and hoisting safety and stability are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge cranes, and particularly to a bridge crane for transferring steel plates in the production of single piles of offshore wind turbines. Background Art

[0002] The main function of the single pile foundation of an offshore wind turbine is to support and fix the offshore wind power generating unit to ensure the stable operation of the offshore wind power generating unit in the marine environment. During the production process of the single pile components of an offshore wind turbine, it is necessary to transfer the steel plates for the production of the single pile of the offshore wind turbine through a bridge crane for subsequent processing.

[0003] When the existing bridge crane transfers the steel plates for the production of single piles of offshore wind turbines, the steel plates are mainly adsorbed and fixed through an electromagnetic chuck to achieve the transfer of the steel plates. However, in the actual use process of the existing bridge crane, it is difficult to ensure that the center of gravity of the steel plate coincides with the hoisting center, resulting in the inclination of the steel plate during the hoisting process, which not only affects the safety of hoisting but also affects the stability of hoisting. Summary of the Invention

[0004] The purpose of the present invention is to provide a bridge crane for transferring steel plates in the production of single piles of offshore wind turbines to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A bridge crane for transferring steel plates in the production of single piles of offshore wind turbines, including a walking beam, the walking beam is installed on a track for movement, a balance adjustment mechanism is arranged below the walking beam, an auxiliary hoisting mechanism and a positioning mechanism are installed on the balance adjustment mechanism, the balance adjustment mechanism includes a mounting frame, a second motor is fixed on the mounting frame, the output end of the second motor is connected to a threaded rod bearing-connected to the mounting frame, a limiting rod fixed on the mounting frame is arranged below the threaded rod, a counterweight block is fixed on the mounting frame to balance the weight of the second motor, a horizontal sensor is fixed at the middle position of the mounting frame, the positioning mechanism includes a moving frame, the moving frame is in threaded connection with the threaded rod and is in sliding connection with the limiting rod, a first electromagnetic chuck is fixed below the moving frame, movable plates are symmetrically arranged on the left and right sides of the moving frame, a second electromagnetic chuck is fixed below the movable plate and is flush with the first electromagnetic chuck, an adjusting rod is also fixed on the movable plate, and clamping grooves are evenly arranged on the surface of the adjusting rod, and the adjusting rod is in sliding connection with the moving frame.

[0006] Preferably, a hoisting vehicle capable of moving left and right is installed on the walking beam, and a first motor is installed on the hoisting vehicle. The output end of the first motor is connected to a wire winding roller bearing-mounted on the hoisting vehicle. At the same time, the wire winding roller is connected to a steel wire rope. By driving the wire winding roller to rotate through the first motor, the winding and unwinding of the steel wire rope can be realized, thereby providing a basic guarantee for the hoisting of steel plates.

[0007] Preferably, the steel wire rope is connected to an anti-sway mechanism, and a fixing plate is fixed at the lower end of the steel wire rope. The fixing plate is connected to the mounting frame through an auxiliary steel cable. Through the action of the auxiliary steel cable, the auxiliary traction of the mounting frame can be realized.

[0008] Preferably, the anti-sway mechanism includes a bracket. The brackets are symmetrically fixed on the lower side of the hoisting vehicle left and right. Cross bars are symmetrically fixed on the brackets front and back. The cross bars are slidably connected to the movable frame. At the same time, a first damper is installed between the cross bars and the movable frame. During the hoisting and transfer of the steel plate, when the steel wire rope sways, the left and right buffering of the steel wire rope can be realized through the first damper, ensuring the stability of the steel wire rope.

[0009] Preferably, fixing rods are symmetrically fixed on the movable frame left and right. The fixing rods are slidably connected to a wire guiding ring. The wire guiding ring is slidably connected to the steel wire rope. At the same time, a second damper is fixed between the wire guiding ring and the movable frame. During the hoisting and transfer of the steel plate, when the steel wire rope sways, the front and back buffering of the steel wire rope can be realized through the second damper, ensuring the stability of the steel wire rope.

[0010] Preferably, the auxiliary hoisting mechanism includes a vertical rod. The vertical rod is fixed on the lower end face of the fixing plate. The vertical rod is slidably connected to a fixing frame. The fixing frame is fixed on the mounting frame. At the same time, a first spring is also fixed between the vertical rod and the fixing frame. Through the sliding action between the vertical rod and the fixing frame, a basic guarantee for the movement of the vertical rod can be provided. With the elastic action of the first spring, a basic acting force for the automatic reset of the vertical rod can be provided.

[0011] Preferably, one end of the vertical rod is rotatably connected to one end of a connecting rod. The other end of the connecting rod is rotatably connected to a movable frame. The movable frame is slidably connected to a guide rod. The guide rod is fixed on the mounting frame. When the vertical rod moves, with the transmission of the connecting rod, a basic acting force for the movement of the movable frame can be provided. With the sliding action between the movable frame and the guide rod, the stability of the movement of the guide rod can be ensured.

[0012] Preferably, a limiting frame is slidably connected to the movable frame, and a supporting plate with an inclined surface structure at the end is fixed on the limiting frame. The distance between the upper end surface of the supporting plate and the lower end surface of the first electromagnetic chuck is equal to the thickness of the steel plate. Through the sliding action between the limiting frames, the height of the supporting plate can be adjusted, thus providing a basic guarantee for the auxiliary lifting of the steel plate.

[0013] Preferably, a U-shaped frame is fixed to the lower end surface of the moving frame, and the U-shaped frame is slidably connected to the ejector rod. A second spring is fixed between the ejector rod and the U-shaped frame. Through the elastic action of the second spring, a basic acting force can be provided for the automatic reset of the ejector rod.

[0014] Preferably, arc-shaped clamping plates are symmetrically fixed on the front and back of the ejector rod. The arc-shaped clamping plates are provided with teeth that cooperate with the clamping grooves on the adjusting rod. The distance between the arc-shaped clamping plates and the adjusting rod is equal to the distance between the lower end surface of the ejector rod and the lower end surface of the first electromagnetic chuck. At the same time, the lower end surface of the ejector rod is lower than the lower end surface of the first electromagnetic chuck. By limiting the distance between the arc-shaped clamping plates and the adjusting rod, it can be ensured that the teeth on the arc-shaped clamping plates are normally engaged with the clamping grooves on the adjusting rod to achieve positioning.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. For the bridge crane for transferring steel plates in the production of monopiles for offshore wind turbines, by adopting an adjusting mechanism, the distance between the first electromagnetic chuck and the second electromagnetic chuck can be adjusted, so as to adapt to the hoisting and fixing of steel plates of different lengths. Then, in cooperation with the balance adjusting mechanism, during the hoisting of the steel plate, when the center of gravity of the steel plate deviates from the hoisting center, the positions of the first electromagnetic chuck and the second electromagnetic chuck can be automatically adjusted, thereby realizing the automatic adjustment of the center of gravity of the steel plate, and further avoiding the inclination of the steel plate during hoisting caused by the non-coincidence of the center of gravity of the steel plate and the hoisting center, ensuring the safety and stability of hoisting;

[0017] 2. For the bridge crane for transferring steel plates in the production of monopiles for offshore wind turbines, by adopting a linkage self-locking mechanism, after the positions of the first electromagnetic chuck and the second electromagnetic chuck are adjusted, when the first electromagnetic chuck and the second electromagnetic chuck are adsorbed and fixed to the steel plate, the automatic locking function between the first electromagnetic chuck and the second electromagnetic chuck can be realized, ensuring the stability of the steel plate fixation;

[0018] 3. For the bridge crane for transferring steel plates in the production of monopiles for offshore wind turbines, by adopting an auxiliary hoisting mechanism, during the fixed hoisting of the steel plate, the lifting and positioning function at the bottom of the steel plate can be synchronously realized, so as to realize the auxiliary support function when the adsorption and fixation between the first electromagnetic chuck or the second electromagnetic chuck and the steel plate is unstable, further ensuring the stability of the steel plate hoisting, and avoiding the occurrence of safety accidents caused by the unstable adsorption and fixation between the first electromagnetic chuck or the second electromagnetic chuck and the steel plate. Description of the Drawings

[0019] Figure 1 This is the overall front elevation three-dimensional structural schematic diagram of the device of the present invention;

[0020] Figure 2 This is the top view three-dimensional structural schematic diagram of the hoisting vehicle of the present invention;

[0021] Figure 3 This is the front elevation three-dimensional structural schematic diagram of the composition of the anti-sway mechanism of the present invention;

[0022] Figure 4 This is the bottom view three-dimensional structural schematic diagram of the composition of the balance adjustment mechanism and the auxiliary hoisting mechanism of the present invention;

[0023] Figure 5 This is the front elevation three-dimensional structural schematic diagram of the composition of the balance adjustment mechanism and the auxiliary hoisting mechanism of the present invention;

[0024] Figure 6 This is the three-dimensional structural schematic diagram of the composition of the auxiliary hoisting mechanism and the positioning mechanism of the present invention;

[0025] Figure 7 This is the partial bottom view three-dimensional structural schematic diagram of the positioning mechanism of the present invention.

[0026] In the figure: 1, walking beam; 2, hoisting vehicle; 3, first motor; 4, wire winding roller; 5, steel wire rope; 6, anti-sway mechanism; 601, bracket; 602, cross bar; 603, movable frame; 604, first damper; 605, fixed rod; 606, wire guiding ring; 607, second damper; 7, fixing plate; 8, auxiliary steel cable; 9, balance adjustment mechanism; 901, mounting frame; 902, second motor; 903, threaded rod; 904, limiting rod; 905, counterweight block; 906, horizontal sensor; 10, auxiliary hoisting mechanism; 1001, vertical rod; 1002, fixing frame; 1003, first spring; 1004, connecting rod; 1005, movable frame; 1006, guiding rod; 1007, limiting frame; 1008, supporting plate; 11, positioning mechanism; 1101, moving frame; 1102, first electromagnetic chuck; 1103, movable plate; 1104, second electromagnetic chuck; 1105, adjusting rod; 1106, U-shaped frame; 1107, ejector rod; 1108, second spring; 1109, arc-shaped clamping plate. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-7 , the present invention provides a technical solution: a bridge crane for transferring steel plates in the production of monopiles for offshore wind turbines, including a walking beam 1, the walking beam 1 is installed on a track for movement, a balance adjustment mechanism 9 is arranged below the walking beam 1, an auxiliary lifting mechanism 10 and a positioning mechanism 11 are installed on the balance adjustment mechanism 9, the balance adjustment mechanism 9 includes a mounting frame 901, a second motor 902 is fixed on the mounting frame 901, the output end of the second motor 902 is connected to a threaded rod 903 bearing-connected to the mounting frame 901, a limiting rod 904 fixed to the mounting frame 901 is arranged below the threaded rod 903, a counterweight 905 for balancing the weight of the second motor 902 is fixed on the mounting frame 901, a horizontal sensor 906 is fixed at the middle position of the mounting frame 901, the positioning mechanism 11 includes a moving frame 1101, the moving frame 1101 is in threaded connection with the threaded rod 903, the moving frame 1101 is in sliding connection with the limiting rod 904, a first electromagnetic chuck 1102 is fixed to the lower side of the moving frame 1101, movable plates 1103 are symmetrically arranged on the left and right sides of the side of the moving frame 1101, a second electromagnetic chuck 1104 is fixed to the lower side of the movable plate 1103, and the second electromagnetic chuck 1104 is flush with the first electromagnetic chuck 1102, an adjusting rod 1105 is also fixed to the movable plate 1103, and card slots are evenly arranged on the surface of the adjusting rod 1105, and the adjusting rod 1105 is in sliding connection with the moving frame 1101.

[0029] A hoisting vehicle 2 that can move left and right is installed on the walking beam 1, and a first motor 3 is installed on the hoisting vehicle 2, and the output end of the first motor 3 is connected to a wire winding roller 4 bearing-connected to the hoisting vehicle 2, and at the same time the wire winding roller 4 is connected to a steel wire rope 5; the auxiliary lifting mechanism 10 includes a vertical rod 1001, the vertical rod 1001 is fixed to the lower end surface of the fixed plate 7, and the vertical rod 1001 is in sliding connection with the fixed frame 1002, and the fixed frame 1002 is fixed on the mounting frame 901, and at the same time a first spring 1003 is also fixed between the vertical rod 1001 and the fixed frame 1002; one end of the vertical rod 1001 is rotatably connected to one end of a connecting rod 1004, and the other end of the connecting rod 1004 is rotatably connected to a movable frame 1005, and the movable frame 1005 is in sliding connection with a guide rod 1006, and at the same time the guide rod 1006 is fixed on the mounting frame 901; a limiting frame 1007 is slidably connected to the movable frame 1005, and a support plate 1008 with an inclined surface structure at the end is fixed on the limiting frame 1007, and the distance between the upper end surface of the support plate 1008 and the lower end surface of the first electromagnetic chuck 1102 is equal to the thickness of the steel plate;

[0030] When using this bridge crane for transferring steel plates in the production of monopiles for offshore wind turbines, as Figures 1-7As shown, the front and rear position adjustment of the device can be achieved by the movement of the walking beam 1 on the guide rail, and the left and right position adjustment of the hoisting mechanism can be achieved by the movement of the hoisting vehicle 2 on the walking beam 1 to facilitate the normal hoisting. When hoisting the steel plate, first, through the movement of the walking beam 1 and the hoisting vehicle 2, the positioning mechanism 11 is moved above the steel plate, and then the first motor 3 drives the wire reel 4 to rotate to realize the wire release of the steel wire rope 5, thereby realizing the height adjustment of the positioning mechanism 11 and the auxiliary hoisting mechanism 10 (at this time, the first spring 1003 is in a contracted state). When the support plate 1008 contacts the steel plate, the wire release of the steel wire rope 5 stops at this time, and the position of the second electromagnetic chuck 1104 is adjusted according to the size of the steel plate at this time. With the sliding guiding effect between the adjusting rod 1105 and the moving frame 1101, the stability of the movement of the second electromagnetic chuck 1104 can be ensured. After the adjustment is completed, the steel wire rope 5 continues to release wire at this time, and the limiting frame 1007 slides into the movable frame 1005. When the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 contact the steel plate, the steel wire rope 5 continues to release wire at this time. At this time, under the elastic action of the first spring 1003, the vertical rod 1001 moves downward, and with the transmission action of the connecting rod 1004, the movable frame 1005 slides outward on the guide rod 1006. At this time, the support plate 1008 slides on the steel plate until the support plate 1008 separates from the steel plate. At this time, under the gravity of the support plate 1008 and the limiting frame 1007, the limiting frame 1007 slides downward and resets relative to the adjusting rod 1105, so that the support plate 1008 moves downward. At this time, the upper end surface of the support plate 1008 is exactly flush with the lower end surface of the steel plate. Then, the first motor 3 drives the wire reel 4 to rotate to realize the wire winding of the steel wire rope 5, so that the steel wire rope 5 generates an upward traction force on the fixed plate 7 and the vertical rod 1001. At this time, under the gravity of the positioning mechanism 11, the first spring 1003 is stressed and contracts, so that the vertical rod 1001 slides upward relative to the fixed frame 1002. According to the above principle, the front and rear groups of limiting frames 1007 and support plates 1008 move synchronously at this time until the limiting frame 1007 contacts the edge of the steel plate to realize positioning. Since the moving distances of the front and rear limiting frames 1007 are equal, it can be ensured that the distances from the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 to the front and rear edges of the steel plate are equal, thereby realizing the front and rear positioning of the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 with the steel plate. At this time, the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 are started again to realize the secondary adsorption and fixation of the steel plate and ensure the stability of the steel plate;

[0031] A U-shaped frame 1106 is fixed to the lower end surface of the movable frame 1101, and the U-shaped frame 1106 is slidably connected to the ejector rod 1107, and a second spring 1108 is fixed between the ejector rod 1107 and the U-shaped frame 1106; arc-shaped clamping plates 1109 are symmetrically fixed on the front and rear of the ejector rod 1107, and the arc-shaped clamping plates 1109 are provided with teeth that cooperate with the card slots on the adjusting rod 1105, and the distance between the arc-shaped clamping plates 1109 and the adjusting rod 1105 is equal to the distance between the lower end surface of the ejector rod 1107 and the lower end surface of the first electromagnetic chuck 1102, and at the same time, the lower end surface of the ejector rod 1107 is lower than the lower end surface of the first electromagnetic chuck 1102;

[0032] Before the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 come into contact with the steel plate, as Figures 1-7 shown, since the lower end surface of the ejector rod 1107 is lower than the lower end surface of the first electromagnetic chuck 1102, the ejector rod 1107 contacts the steel plate first. At this time, under the gravity of the mounting frame 901, the ejector rod 1107 slides upward relative to the U-shaped frame 1106, thereby driving the arc-shaped clamping plate 1109 to move upward. When the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 come into contact with the steel plate, the teeth on the arc-shaped clamping plate 1109 just engage with the card slots on the adjusting rod 1105 to achieve positioning, thereby realizing the fixation of the distance between the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102. And when the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 are adsorbed and fixed to the steel plate, during the hoisting process of the steel plate, since the distance between the second electromagnetic chuck 1104 and the first electromagnetic chuck 1102 and the steel plate does not change, the stability of the engagement between the teeth on the arc-shaped clamping plate 1109 and the card slots on the adjusting rod 1105 can be ensured;

[0033] After the steel plate is fixed, as Figures 1-7 shown, by driving the wire reel 4 to rotate through the first motor 3 to wind up the steel wire rope 5, the steel plate can be lifted. When the steel plate is lifted and the steel plate is unbalanced left and right, that is, when the center of gravity of the steel plate does not coincide with the hoisting center, at this time, the horizontal sensor 906 can detect the horizontal state of the mounting frame 901 and the steel plate, and cooperate with the control of the second motor 902 to start, which can drive the movable frame 1101 and the movable plate 1103 to move, thereby driving the second electromagnetic chuck 1104, the first electromagnetic chuck 1102 and the steel plate to move, so as to realize the adjustment of the center of gravity position of the steel plate, ensure that the center of gravity of the steel plate coincides with the hoisting center, and thus ensure the stability and safety during the hoisting process;

[0034] The steel wire rope 5 is connected to the anti-sway mechanism 6. A fixing plate 7 is fixed to the lower end of the steel wire rope 5, and the fixing plate 7 is connected to the mounting frame 901 through an auxiliary steel cable 8. The anti-sway mechanism 6 includes a bracket 601, which is symmetrically fixed to the lower side of the hoisting vehicle 2 left and right. Cross bars 602 are symmetrically fixed to the front and rear of the bracket 601. The cross bars 602 are slidably connected to the movable frame 603, and a first damper 604 is installed between the cross bars 602 and the movable frame 603. Fixed rods 605 are symmetrically fixed to the left and right of the movable frame 603. The fixed rods 605 are slidably connected to the wire guide ring 606. The wire guide ring 606 is slidably connected to the steel wire rope 5, and a second damper 607 is fixed between the wire guide ring 606 and the movable frame 603.

[0035] During the hoisting process of the steel plate, as Figures 1-7 shown, the movement of the walking beam 1 and the hoisting vehicle 2 can drive the steel plate to move. During the movement of the steel plate, when the steel plate sways, it drives the steel wire rope 5 to sway. The steel wire rope 5 drives the wire guide ring 606 to move. With the sliding action between the cross bar 602 and the movable frame 603 and the buffering action of the first damper 604, the buffering of the left and right displacement of the steel wire rope 5 can be realized. With the sliding action between the fixed rod 605 and the wire guide ring 606 and the buffering action of the second damper 607, the buffering of the front and rear displacement of the steel wire rope 5 can be realized. Thus, when the steel wire rope 5 sways, it can be quickly stabilized, and then the steel plate can be quickly stabilized, effectively avoiding the occurrence of safety accidents caused by excessive sway of the steel plate. This is the working principle of the bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines.

[0036] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or elements inherent to such process, method, article or device.

[0037] Specific examples are used in this article to elaborate on the principles and implementation methods of the present invention. The description of the above examples is only used to help understand the method and its core idea of the present invention. The above are only the preferred implementation methods of the present invention. It should be pointed out that due to the limited nature of written expression and the objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present invention.

Claims

1. A bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines, comprising a walking beam (1), and the walking beam (1) is installed on a track for movement, characterized in that: A balance adjustment mechanism (9) is provided below the walking beam (1). An auxiliary hoisting mechanism (10) and a positioning mechanism (11) are installed on the balance adjustment mechanism (9). The balance adjustment mechanism (9) includes a mounting frame (901). A second motor (902) is fixed on the mounting frame (901). The output end of the second motor (902) is connected to a threaded rod (903) whose bearing is connected to the mounting frame (901). A limiting rod (904) fixed to the mounting frame (901) is provided below the threaded rod (903). A counterweight (905) is fixed on the mounting frame (901) to balance the weight of the second motor (902). A horizontal sensor (906) is fixed at the middle position of the mounting frame (901). The positioning mechanism (11) includes a moving frame (1101). The moving frame (1101) is in threaded connection with the threaded rod (903) and is in sliding connection with the limiting rod (904). A first electromagnetic chuck (1102) is fixed to the lower side of the moving frame (1101). Movable plates (1103) are symmetrically arranged on the left and right sides of the moving frame (1101). A second electromagnetic chuck (1104) is fixed to the lower side of the movable plate (1103), and the second electromagnetic chuck (1104) is flush with the first electromagnetic chuck (1102). An adjusting rod (1105) is also fixed to the movable plate (1103), and card slots are evenly arranged on the surface of the adjusting rod (1105). The adjusting rod (1105) is in sliding connection with the moving frame (1101).

2. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 1, wherein: A hoisting cart (2) that can move left and right is installed on the walking beam (1). A first motor (3) is installed on the hoisting cart (2). The output end of the first motor (3) is connected to a wire winding roller (4) whose bearing is connected to the hoisting cart (2). At the same time, the wire winding roller (4) is connected to a steel wire rope (5).

3. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 2, wherein: The steel wire rope (5) is connected to an anti-sway mechanism (6). The lower end of the steel wire rope (5) is fixed to a fixing plate (7). The fixing plate (7) is connected to the mounting frame (901) through an auxiliary steel cable (8).

4. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 3, characterized in that: The anti-sway mechanism (6) includes a bracket (601). The brackets (601) are symmetrically fixed on the lower side of the hoisting cart (2) on the left and right. Cross bars (602) are symmetrically fixed on the front and back of the brackets (601). The cross bars (602) are in sliding connection with a movable frame (603). At the same time, a first damper (604) is installed between the cross bars (602) and the movable frame (603).

5. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 4, characterized in that: Fixed rods (605) are symmetrically fixed on the left and right of the movable frame (603). The fixed rods (605) are in sliding connection with a wire guiding ring (606). The wire guiding ring (606) is in sliding connection with the steel wire rope (5). At the same time, a second damper (607) is fixed between the wire guiding ring (606) and the movable frame (603).

6. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 3, characterized in that: The auxiliary hoisting mechanism (10) includes a vertical rod (1001). The vertical rod (1001) is fixed to the lower end face of the fixed plate (7), and the vertical rod (1001) is slidably connected to the fixed frame (1002). The fixed frame (1002) is fixed to the mounting frame (901). At the same time, a first spring (1003) is fixed between the vertical rod (1001) and the fixed frame (1002).

7. The bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 6, characterized in that: One end of the vertical rod (1001) is rotatably connected to one end of the connecting rod (1004), and the other end of the connecting rod (1004) is rotatably connected to the movable frame (1005). The movable frame (1005) is slidably connected to the guide rod (1006). The guide rod (1006) is fixed to the mounting frame (901).

8. A bridge crane for steel plate transfer in the production of a monopile for an offshore wind turbine according to claim 7, characterized in that: A limiting frame (1007) is slidably connected to the movable frame (1005). A support plate (1008) with an inclined surface structure at the end is fixed to the limiting frame (1007). The distance between the upper end face of the support plate (1008) and the lower end face of the first electromagnetic chuck (1102) is equal to the thickness of the steel plate.

9. A bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 1, characterized in that: A U-shaped frame (1106) is fixed to the lower end face of the movable frame (1101). The U-shaped frame (1106) is slidably connected to the ejector rod (1107). A second spring (1108) is fixed between the ejector rod (1107) and the U-shaped frame (1106).

10. A bridge crane for steel plate transfer in the production of monopiles for offshore wind turbines according to claim 9, characterized in that: Arc-shaped clamping plates (1109) are symmetrically fixed to the front and back of the ejector rod (1107). The arc-shaped clamping plates (1109) are provided with teeth that cooperate with the card slots on the adjusting rod (1105). The distance between the arc-shaped clamping plates (1109) and the adjusting rod (1105) is equal to the distance between the lower end face of the ejector rod (1107) and the lower end face of the first electromagnetic chuck (1102). At the same time, the lower end face of the ejector rod (1107) is lower than the lower end face of the first electromagnetic chuck (1102).

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