Anchoring device for a full-circle floating crane and crane

Abstract

The application relates to the field of floating cranes, and particularly discloses an anchoring device of a full-rotation floating crane and the crane. The anchoring device comprises: an anchoring component arranged at the tail of a ship body and below a rotating base plate of the crane, and provided with a first shaft hole at the upper end; a rotating ear plate arranged at the lower surface of the rotating base plate and provided with a second shaft hole corresponding to the first shaft hole; a driving component arranged at the lower surface of the rotating base plate; and an anchoring pin shaft coaxial with the second shaft hole and connected with the driving component at one end, wherein the driving component is used for driving the anchoring pin shaft to move along the axial direction of the second shaft hole, so that the anchoring pin shaft passes through the second shaft hole and the first shaft hole to be anchored, and the anchoring pin shaft is separated from the first shaft hole to be unanchored. The anchoring device has the advantages of simple structure, convenient operation and maintenance, reduced stress of the anchoring pin shaft, and prolonged service life of the pin shaft.

Description

Technical Field

[0001] This application relates to the field of floating cranes, specifically to an anchoring device and a crane for a full-rotation floating crane. Background Technology

[0002] Floating cranes, using floating bodies, hulls, or platforms as carriers, are used in port and offshore operations, and are widely used in offshore construction, salvage and rescue, and port terminals. After completing offshore operations, floating cranes often need to be towed to a different work site or anchored to withstand typhoons. During this process, in severe sea conditions, the hull is subjected to the effects of wind and waves, resulting in swaying, heave, and lateral drift, causing the rotating parts to bear additional inertial loads. Therefore, the crane must be reliably locked to prevent accidental rotation.

[0003] Currently, the conventional method for securing fully slewing floating cranes in towed mode is to simultaneously employ a boom support and a slewing mechanism brake. The boom support supports the boom, while the slewing mechanism brake locks the slewing motion. Conventional anchoring devices are typically installed near the slewing bearing, close to the center of rotation. When resisting the same slewing torque, this location experiences greater stress, thus placing higher demands on the strength of the anchoring structure and the load-bearing capacity of the pin. Furthermore, existing devices often use a cantilever design for the pin, with one end fixed and the other end free to bear the load. This results in significant bending stress on the pin bearing under load, making it prone to fatigue damage. In addition, this cantilever structure requires strict installation precision; with hull deformation or long-term use, the fit between the pin and the anchoring hole becomes difficult to maintain, thus affecting the reliability of the anchoring. Therefore, how to safely and reliably transfer the load of the slewing body to the hull structure, effectively counteract the slewing torque caused by horizontal lateral acceleration, thereby improving the safety of towing and typhoon resistance operations, and taking into account the convenience of anchoring operations under this premise, has become a key problem that urgently needs to be solved in this field. Summary of the Invention

[0004] The purpose of this application is to propose an anchoring device and a crane for a fully rotating floating crane, in order to solve the problem that existing anchoring devices are prone to fatigue damage, resulting in insufficient safety of the crane under towing and anchorage typhoon conditions.

[0005] To solve at least one of the above-mentioned technical problems, the technical solution of this application is as follows:

[0006] According to a first aspect of this application, an anchoring device for a fully slewing floating crane is provided, comprising:

[0007] An anchoring component is located at the stern of the hull and below the slewing chassis of the crane, with a first shaft hole at its upper end.

[0008] A rotary ear plate is provided on the lower surface of the rotary chassis, and a second shaft hole corresponding to the first shaft hole is provided thereon;

[0009] The drive unit is located on the lower surface of the rotary chassis;

[0010] An anchoring pin is coaxial with the second shaft hole, and one end of it is connected to a driving component. The driving component is used to drive the anchoring pin to move axially along the second shaft hole so that the anchoring pin passes through the second shaft hole and the first shaft hole for anchoring, and to separate the anchoring pin from the first shaft hole to release the anchoring.

[0011] In some embodiments, there are two rotating lugs, which are arranged side by side at intervals along the moving direction of the anchoring pin.

[0012] The upper end of the anchoring component can pass between the two rotating lugs.

[0013] In some embodiments, the anchoring component includes a base and an anchoring lug;

[0014] Anchoring lugs are set on the base. There are two anchoring lugs, which are arranged side by side along the moving direction of the anchoring pin. Each anchoring lug is provided with a first shaft hole, and the two first shaft holes are coaxial.

[0015] In some embodiments, the anchoring component further includes a first bushing, which is detachably embedded in a first shaft hole and is used to cooperate with the anchoring pin.

[0016] In some embodiments, the rotary lug further includes a second bushing, which is detachably embedded in a second shaft hole and is used to cooperate with an anchoring pin.

[0017] In some embodiments, the anchoring device further includes:

[0018] The bracket is set on the lower surface of the slewing chassis and is located between the drive component and the slewing ear plate;

[0019] The bracket is used to support the anchor pin, and the bracket is provided with a support groove for the anchor pin to pass through.

[0020] In some embodiments, the anchoring device further includes:

[0021] The limit detection component is set on the lower surface of the rotary chassis and is used to detect the position of the anchor pin.

[0022] The limit detection assembly includes a first sensor and a second sensor; the first sensor is located near the drive component and between the rotary ear plate and the drive component, and is used to determine when the anchoring pin disengages from the anchoring component; the second sensor is located on the side of the rotary ear plate and the anchoring component away from the drive component, and is used to determine when the anchoring pin locks the rotary ear plate and the anchoring component.

[0023] In some embodiments, the radial cross-sectional shape of the anchoring pin is waist-shaped, the axial directions of the first shaft hole, the second shaft hole, and the anchoring pin are all aligned with the horizontal direction, the two sides of the anchoring pin in the horizontal direction are straight sides extending in the vertical direction, and the upper and lower sides are arc-shaped, and the radial cross-sectional shape of the second shaft hole matches the radial cross-sectional shape of the anchoring pin.

[0024] In some embodiments, the radial cross-sectional shape of the first shaft hole is waist-shaped, the two sides of the first shaft hole in the horizontal direction are straight sides extending in the vertical direction, the sides of the first shaft hole cooperate with the sides of the anchoring pin, and the length of the first shaft hole in the vertical direction is greater than the length of the anchoring pin in the vertical direction.

[0025] According to a second aspect of this application, a fully slewing floating crane is provided, including an anchoring device as described in any of the preceding claims.

[0026] The above-mentioned technical solution of this application has at least one of the following beneficial effects:

[0027] According to this application, an anchoring device and a crane for a fully rotating floating crane are disclosed. The anchoring device includes an anchoring component, a rotating lug, a drive component, and an anchoring pin. The anchoring component is located at the stern of the hull, while the rotating lug, drive component, and anchoring pin are located on the lower surface of the rotating chassis. The upper end of the anchoring component has a first shaft hole, and the rotating lug has a second shaft hole. The drive component can drive the anchoring pin through the second shaft hole and the first shaft hole for anchoring, or separate the anchoring pin from the first shaft hole to release the anchoring. The anchoring component's location at the stern allows the anchoring position to be farther from the crane's rotation center than conventional anchoring positions, resulting in less stress on the anchoring pin and improved safety. The anchoring device has a simple structure and is easier to operate and maintain.

[0028] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by conventional means in the field. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is an overall structural diagram of a fully rotating floating crane according to one embodiment of this application;

[0031] Figure 2This is a schematic diagram of the anchoring device of a fully rotating floating crane according to one embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the anchoring device of a fully rotating floating crane according to one embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the structure of an anchoring component according to one embodiment of this application;

[0034] Figure 5 This is a schematic diagram of the structure of an anchoring component according to one embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of a rotating ear plate according to one embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of a rotating ear plate according to one embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the bracket according to one embodiment of this application.

[0038] Explanation of the labels in the attached drawings:

[0039] Anchoring device 1000; slewing chassis 2000; hull 3000;

[0040] Anchoring component 100; first shaft hole 110; base 120; anchoring lug 130; first bushing 140; rotating lug 200; second shaft hole 210; second bushing 220; driving component 300; anchoring pin 400; bracket 500; limit detection assembly 600; first sensor 610; second sensor 620. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] See Figures 1 to 3 As shown, an anchoring device 1000 for a full-rotation floating crane according to an embodiment of this application is schematically illustrated. The anchoring device 1000 includes: an anchoring component 100, a slewing lug 200, a driving component 300, and an anchoring pin 400.

[0045] like Figure 1 As shown, the anchoring component 100 is located at the stern of the hull 3000 and below the slewing chassis 2000 of the crane. Figure 2 and Figure 3 As shown, the upper end of the anchoring component 100 is provided with a first shaft hole 110. The rotating ear plate 200 is provided on the lower surface of the rotating chassis 2000, and a second shaft hole 210 corresponding to the first shaft hole 110 is provided thereon. The driving component 300 is provided on the lower surface of the rotating chassis 2000. The anchoring pin 400 is coaxial with the second shaft hole 210, and one end of the pin is connected to the driving component 300. The driving component 300 is used to drive the anchoring pin 400 to move axially along the second shaft hole 210, so that the anchoring pin 400 passes through the second shaft hole 210 and the first shaft hole 110 for anchoring, and to separate the anchoring pin 400 from the first shaft hole 110 to release the anchoring.

[0046] Figure 2This is a schematic diagram of the anchoring device 1000 in the anchored state. When the slewing chassis 2000 needs to be anchored, it rotates to the anchoring position, aligning the slewing lug 200 on its lower surface with the anchoring component 100. Specifically, the second shaft hole 210 on the slewing lug 200 coincides with the first shaft hole 110 on the anchoring component 100. Then, the drive component 300 drives the anchoring pin 400 to move axially along the second shaft hole 210, passing through both the second shaft hole 210 and the first shaft hole 110 in sequence, mechanically connecting the slewing chassis 2000 to the hull 3000 and restricting their relative rotation.

[0047] Figure 3 This is a schematic diagram of the anchoring device 1000 in the unanchored state. When the slewing chassis 2000 needs to be unanchored, the drive component 300 drives the anchoring pin 400 to retract in a direction away from the anchoring component 100. When the anchoring pin 400 is completely disengaged from the first shaft hole 110, the anchoring device 1000 is unanchored, and the slewing chassis 2000 regains its free rotation capability.

[0048] In other words, the anchoring component 100 is located at the stern of the hull 3000, serving as an anchoring point on the side of the hull 3000. Through cooperation with the slewing lug 200, drive component 300, and anchoring pin 400 on one side of the slewing chassis 2000, it anchors or releases the slewing chassis 2000 from the hull 3000 in its rotational direction. The anchoring component 100 is farther from the rotational center of the slewing chassis 2000 than conventional anchoring positions. Under the same rotational torque, the force required at a position farther from the rotational center is less. Therefore, the anchoring device 1000 of this invention can reduce the force on the anchoring pin 400, effectively reducing the requirements for anchoring structural strength, pin diameter, and material properties, reducing structural weight, and simultaneously improving anchoring reliability.

[0049] In some embodiments, such as Figure 2 and Figure 3 As shown, there are two rotating ear plates 200, which are arranged side by side at intervals along the moving direction of the anchoring pin 400. The upper end of the anchoring component 100 can pass between the two rotating ear plates 200.

[0050] The two rotating lugs 200 can support both ends of the anchoring pin 400, making the anchoring pin 400 a simply supported beam, so that the two ends of the anchoring pin 400 are evenly stressed, preventing the anchoring pin 400 from bending and extending its service life.

[0051] In some embodiments, such as Figure 2 and Figure 3 As shown, the anchoring component 100 includes a base 120 and an anchoring lug 130.

[0052] like Figure 4 and Figure 5 As shown, the anchoring ear plate 130 is set on the base 120. There are two anchoring ear plates 130, which are arranged side by side along the moving direction of the anchoring pin shaft 400. Each anchoring ear plate 130 is provided with a first shaft hole 110, and the two first shaft holes 110 are coaxial.

[0053] The two anchoring lugs 130 can increase the stability and reliability of the anchoring component 100 and improve its torsional stiffness.

[0054] In some embodiments, such as Figure 4 and Figure 5 As shown, the anchoring component 100 also includes a first bushing 140, which is detachably embedded in the first shaft hole 110 and is used to cooperate with the anchoring pin 400.

[0055] The first bushing 140 can be fitted on-site during the installation of the anchoring component 100, actively compensating for the bore diameter deviation and relative position deviation of the first shaft hole 110, so that it can mate with the anchoring pin 400 and allow the anchoring pin 400 to be smoothly inserted. The first bushing 140 can be made of steel, which can protect the anchoring component 100, increase its wear resistance, and the detachable structure facilitates maintenance and replacement.

[0056] In some embodiments, such as Figure 6 and Figure 7 As shown, the rotary lug 200 also includes a second bushing 220, which is detachably embedded in the second shaft hole 210 and is used to cooperate with the anchoring pin 400.

[0057] The second bushing 220 can be fitted on-site during the installation of the rotary lug 200, actively compensating for the bore diameter deviation and relative position deviation of the second shaft hole 210, so that it can mate with the anchoring pin 400 and allow the anchoring pin 400 to be smoothly inserted. The second bushing 220 can be made of steel, which can protect the rotary lug 200, increase its wear resistance, and the detachable structure facilitates maintenance and replacement.

[0058] In some embodiments, such as Figure 2 , Figure 3 and Figure 8 As shown, the anchoring device 1000 also includes a bracket 500. The bracket 500 is disposed on the lower surface of the slewing chassis 2000 and located between the drive component 300 and the slewing lug 200. The bracket 500 is used to support the anchoring pin 400.

[0059] The anchor pin 400 has a relatively long axial length, making it prone to bending or sagging under its own weight. The bracket 500 provides upward support to the anchor pin 400 at its midpoint, ensuring it remains horizontal and straight, preventing sagging that could cause the end of the anchor pin 400 to malfunction and misalign with the first shaft hole 110 or the second shaft hole 210. The bracket 500 supports and guides the anchor pin 400, ensuring smooth insertion and removal.

[0060] like Figure 8 As shown, the bracket 500 is provided with a support groove for the anchor pin 400 to pass through. The shape of the support groove can match the outer contour of the anchor pin 400, which allows the anchor pin 400 to move more smoothly in the bracket 500.

[0061] In some embodiments, such as Figure 2 and Figure 3 As shown, the anchoring device 1000 also includes a limit detection component 600. The limit detection component 600 is disposed on the lower surface of the rotary chassis 2000 and is used to detect the position of the anchoring pin 400.

[0062] The limit detection assembly 600 includes a first sensor 610 and a second sensor 620. The first sensor 610 is located near the drive component 300 and between the rotary ear plate 200 and the drive component 300, and is used to determine when the anchoring pin 400 disengages from the anchoring component 100. The second sensor 620 is located on the side of the rotary ear plate 200 and the anchoring component 100 away from the drive component 300, and is used to determine when the anchoring pin 400 locks the rotary ear plate 200 and the anchoring component 100.

[0063] The first sensor 610 and the second sensor 620 determine when the anchor pin 400 has reached the locked or disengaged position, and send the signal to the crane control system, which can greatly improve the safety of towing.

[0064] In some embodiments, the drive component 300 may be a hydraulic cylinder, and the extension and retraction of the hydraulic cylinder are controlled by the crane control system.

[0065] The anchoring device 1000 of this invention can achieve safety interlock control with the crane control system through the limit detection component 600. The crane control system receives a signal from the second sensor 620, detects that the anchoring pin 400 has reached the locked position, and receives a boom rest signal and a slewing brake signal to determine that the towing conditions are met. The crane control system receives a signal from the first sensor 610, detects that the anchoring pin 400 has completely disengaged from the first shaft hole 110, indicating that the crane can start slewing operation. This improves the safety and reliability of the crane.

[0066] In some embodiments, such as Figure 7 As shown, the radial cross-sectional shape of the anchoring pin 400 is waist-shaped. The axial directions of the first shaft hole 110, the second shaft hole 210, and the anchoring pin 400 are all aligned with the horizontal direction. The two sides of the anchoring pin 400 in the horizontal direction are straight sides extending vertically, and their upper and lower sides are arc-shaped. The radial cross-sectional shape of the second shaft hole 210 matches the radial cross-sectional shape of the anchoring pin 400.

[0067] Since the anchoring device 1000 of the present invention only needs to overcome the torque caused by the horizontal lateral acceleration generated during towing or anchoring against typhoons, and does not bear vertical loads, the radial cross-sectional shape of the anchoring pin 400 and the second shaft hole 210 is oblong. The two sides of the oblong shape are straight edges and are the main load-bearing surfaces. When a horizontal lateral force acts on the slewing chassis 2000, the sides of the anchoring pin 400 and the second shaft hole 210 are tightly fitted through surface contact, which can transmit torque more efficiently than the line contact of a circular cross-section. The oblong shape also prevents the anchoring pin 400 from rotating in the second shaft hole 210.

[0068] In some embodiments, such as Figure 5 As shown, the radial cross-sectional shape of the first shaft hole 110 is waist-shaped. The two sides of the first shaft hole 110 in the horizontal direction are straight sides extending in the vertical direction. The sides of the first shaft hole 110 are matched with the sides of the anchoring pin 400. The length of the first shaft hole 110 in the vertical direction is greater than the length of the anchoring pin 400 in the vertical direction.

[0069] The swaying of the hull 3000 can cause vertical acceleration, potentially resulting in vertical displacement of the slewing chassis 2000 relative to the hull 3000. Therefore, the anchoring pin 400 on the slewing chassis 2000 will experience relative displacement with respect to the anchoring component 100 on the hull 3000. The vertical length of the first shaft hole 110 is greater than the vertical length of the radial section of the anchoring pin 400, meaning a clearance is reserved in the height direction of the first shaft hole 110 relative to the shaft diameter of the anchoring pin 400. This clearance is greater than the maximum estimated sag, which is the maximum vertical relative displacement that the slewing chassis 2000 and the hull 3000 may experience. This ensures that the anchoring pin 400 remains suspended in the center of the shaft hole, without contacting the upper or lower walls. The upper and lower sides of the radial cross-section of the first shaft hole 110 are arc-shaped. If the anchor pin 400 contacts the upper and lower hole walls of the first shaft hole 110, hard collisions can be avoided, thus preventing damage to the anchor pin 400 and the first shaft hole 110.

[0070] On the other hand, this application provides a fully rotating floating crane, such as Figure 1 As shown, it includes the anchoring device 1000 as described in any of the above items.

[0071] In summary, according to this application, an anchoring device and a crane for a fully rotating floating crane are disclosed. The anchoring device 1000 includes: an anchoring component 100, a rotating lug 200, a driving component 300, and an anchoring pin 400. The anchoring component 100 is located at the stern of the hull 3000, while the rotating lug 200, driving component 300, and anchoring pin 400 are located on the lower surface of the rotating chassis 2000. The upper end of the anchoring component 100 has a first shaft hole 110, and the rotating lug 200 has a second shaft hole 210. The driving component 300 can drive the anchoring pin 400 through the second shaft hole 210 and the first shaft hole 110 for anchoring, or separate the anchoring pin 400 from the first shaft hole 110 to release the anchor. The anchoring component 100 is located at the stern of the hull 3000, which is farther from the crane's rotation center than a conventional anchoring position, resulting in less stress on the anchoring pin and improved safety. The anchoring device 1000 has a simple structure and is easier to operate and maintain.

[0072] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0073] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of this application. In this case, all details can be replaced with equivalent elements, and materials, shapes, and sizes can also be arbitrary.

Claims

1. An anchoring device for a full-rotation floating crane, characterized in that, include: An anchoring component is located at the stern of the hull and below the slewing chassis of the crane, with a first shaft hole at its upper end. A rotary ear plate is provided on the lower surface of the rotary chassis, and a second shaft hole corresponding to the first shaft hole is provided thereon; A drive component is disposed on the lower surface of the rotary chassis; An anchoring pin is coaxial with the second shaft hole, and one end of the pin is connected to the driving component. The driving component is used to drive the anchoring pin to move axially along the second shaft hole so that the anchoring pin passes through the second shaft hole and the first shaft hole for anchoring, and to separate the anchoring pin from the first shaft hole to release the anchoring.

2. The anchoring device for the full-rotation floating crane according to claim 1, characterized in that, There are two rotating lugs, which are arranged side by side at intervals along the moving direction of the anchoring pin. The upper end of the anchoring component can pass between the two rotating lugs.

3. The anchoring device for a full-rotation floating crane according to claim 1, characterized in that, The anchoring component includes a base and an anchoring lug; The anchoring lugs are disposed on the base. There are two anchoring lugs, which are arranged side by side along the moving direction of the anchoring pin. Each anchoring lug is provided with the first shaft hole, and the two first shaft holes are coaxial.

4. The anchoring device for the full-rotation floating crane according to claim 3, characterized in that, The anchoring component further includes a first bushing, which is detachably embedded in the first shaft hole and is used to cooperate with the anchoring pin.

5. The anchoring device for a full-rotation floating crane according to claim 1, characterized in that, The rotating lug also includes a second bushing, which is detachably embedded in the second shaft hole and is used to cooperate with the anchoring pin.

6. The anchoring device for a full-rotation floating crane according to claim 1, characterized in that, Also includes: A bracket is disposed on the lower surface of the rotary chassis and located between the drive component and the rotary lug. The bracket is used to support the anchoring pin, and the bracket is provided with a support groove for the anchoring pin to pass through.

7. The anchoring device for a full-rotation floating crane according to claim 1, characterized in that, Also includes: A limit detection component is disposed on the lower surface of the rotary chassis and is used to detect the position of the anchoring pin. The limit detection component includes a first sensor and a second sensor; the first sensor is located near the driving component and between the rotary ear plate and the driving component, and is used to determine that the anchoring pin disengages from the anchoring component; the second sensor is located on the side of the rotary ear plate and the anchoring component away from the driving component, and is used to determine that the anchoring pin locks the rotary ear plate and the anchoring component.

8. The anchoring device for a full-rotation floating crane according to claim 1, characterized in that, The radial cross-sectional shape of the anchoring pin is waist-shaped. The axial directions of the first shaft hole, the second shaft hole, and the anchoring pin are all aligned with the horizontal direction. The two sides of the anchoring pin in the horizontal direction are straight sides extending in the vertical direction, and their upper and lower sides are arc-shaped. The radial cross-sectional shape of the second shaft hole matches the radial cross-sectional shape of the anchoring pin.

9. The anchoring device for a full-rotation floating crane according to claim 8, characterized in that, The radial cross-sectional shape of the first shaft hole is waist-shaped. The two sides of the first shaft hole in the horizontal direction are straight sides extending in the vertical direction. The sides of the first shaft hole mate with the sides of the anchoring pin. The length of the first shaft hole in the vertical direction is greater than the length of the anchoring pin in the vertical direction.

10. A fully rotating floating crane, characterized in that, Includes the anchoring device as described in any one of claims 1 to 9.

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