Marine intelligent hanging basket with heave compensation function

Abstract

The invention discloses an intelligent offshore hanging basket with a heave compensation function. Comprising a base, the base is internally provided with a containing cavity, the center of the upper end face of the base is provided with a stand column, the stand column is internally provided with an axial pipe cavity, and the pipe cavity is communicated with the containing cavity; the hoisting mechanism is eccentrically arranged in the accommodating cavity and is used for winding and unwinding the steel wire rope; the brake mechanism is arranged on one side of the hoisting mechanism and used for locking and releasing the hoisting mechanism; the steel wire rope is wound on the hoisting mechanism, and the tail of the steel wire rope penetrates through the pipe cavity, extends out of the top of the stand column and is connected with a lifting hook; the laser radar is arranged on the edge of the ocean platform and used for detecting the heaving state of the sea surface, and the controller is arranged in the containing cavity and located on one side of the braking mechanism; and the controller is electrically connected with the braking mechanism and the laser radar. The method has the beneficial effect that heave compensation can be provided in the boarding process.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore platforms, and particularly relates to an intelligent offshore hanging basket with heave compensation. Background Art

[0002] The boarding method of offshore platforms usually uses a platform crane to lift personnel or materials in a hanging basket from the ship deck to the platform deck. Conventional offshore platform hanging baskets have no follow-up function, cannot perform heave compensation according to the changes of waves, and cannot adapt to the working conditions of wave undulations. When the sea is rough, the difficulty and safety risks of personnel boarding or evacuating are high. Summary of the Invention

[0003] The purpose of the present invention is to provide an intelligent offshore hanging basket with heave compensation, which is provided with a base, a hoisting mechanism, a braking mechanism, a steel wire rope, a lidar and a controller, and can provide heave compensation during the boarding process.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions, including:

[0005] A base, which is internally provided with a receiving cavity. A column is provided at the center of the upper end surface of the base, and an axial pipe cavity is provided inside the column, and the pipe cavity is communicated with the receiving cavity;

[0006] A hoisting mechanism, which is eccentrically arranged in the receiving cavity and is used for winding and unwinding the steel wire rope;

[0007] A braking mechanism, which is arranged on one side of the hoisting mechanism and is used for locking and releasing the hoisting mechanism;

[0008] A steel wire rope, which is wound on the hoisting mechanism. The tail of the steel wire rope passes through the pipe cavity and extends out of the top of the column and is connected to a hook;

[0009] A lidar, which is arranged at the edge of the offshore platform and is used for detecting the heave state of the sea surface,

[0010] A controller, which is arranged in the receiving cavity and is located on one side of the braking mechanism; the controller is electrically connected to the braking mechanism and the lidar, and is used for sending an instruction to the braking mechanism according to the heave state of the sea surface detected by the lidar to lock or release the hoisting mechanism.

[0011] Preferably, the hoisting mechanism includes:

[0012] A fixed shaft, which is vertically and eccentrically arranged in the receiving cavity;

[0013] A volute spring, which is sleeved on the outer periphery of the fixed shaft, and the inner end of the volute spring is connected to the fixed shaft;

[0014] A reel, which is sleeved on the outer periphery of the scroll spring, and the inner wall of the reel is connected to the outer end of the scroll spring; the outer periphery of the reel is used for winding a wire rope;

[0015] A large gear, which is sleeved on the outer periphery of the lower edge of the reel.

[0016] Preferably, the braking mechanism includes:

[0017] A rotating shaft, which is rotatably arranged on one side of the fixed shaft;

[0018] A small gear, which is arranged in the middle of the rotating shaft and meshes with the large gear;

[0019] An electromagnetic brake, which is sleeved on the lower part of the rotating shaft and is electrically connected to a controller, and is used for braking or releasing the rotating shaft under the control of the controller, so as to lock or release the hoisting mechanism.

[0020] Preferably, it further includes:

[0021] A battery box, which is arranged on the other side of the hoisting mechanism in the accommodating cavity and is electrically connected to the electromagnetic brake and the controller, and is used for supplying power to the electromagnetic brake and the controller.

[0022] Preferably, it further includes:

[0023] An anti-collision block, which is arranged on the lower end face of the base and is used for reducing the impact force.

[0024] Preferably, the anti-collision block is made of foam, and a 3-5 mm thick polyurea is sprayed on the outer surface of the anti-collision block.

[0025] Preferably, a handrail is provided in the upper-middle part of the column.

[0026] Preferably, it further includes:

[0027] A guide pulley, which is arranged in the accommodating cavity and is located on one side of the lower end of the column;

[0028] A tensioning pulley, which is arranged in the accommodating cavity and is located between the guide pulley and the hoisting mechanism, and is used for tensioning the wire rope.

[0029] Preferably, it further includes:

[0030] A plurality of reinforcing ribs, which are evenly distributed along the circumference between the bottom of the column and the upper end face of the base.

[0031] Preferably, it further includes:

[0032] A bracket, horizontally installed between the electromagnetic brake and the pinion. Openings are provided on the bracket for the lower ends of the fixed shaft and the rotating shaft to pass through respectively; vertical plates extending upward are provided at both ends of the bracket;

[0033] An upper plate, arranged at the upper ends of the vertical plates. Openings are provided on the upper plate for the upper ends of the fixed shaft and the rotating shaft to pass through respectively.

[0034] The beneficial effects of the present invention are: provided with a base, a hoisting mechanism, a braking mechanism, a steel wire rope, a lidar and a controller, which can provide heave compensation during the boarding process. Description of the Drawings

[0035] Figure 1 It is a perspective view of an intelligent offshore hanging basket with heave compensation according to the present invention.

[0036] Figure 2 It is a perspective view inside the accommodation cavity of the present invention Figure 1 .

[0037] Figure 3 It is a perspective view inside the accommodation cavity of the present invention Figure 2 (Remove the upper plate). Detailed Description of the Invention

[0038] The following further describes the invention in detail with reference to the drawings, so that those skilled in the art can implement it according to the text of the specification.

[0039] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or other elements or their combinations.

[0040] As Figures 1-3 shown, an intelligent offshore hanging basket 1 with heave compensation according to the present invention includes:

[0041] A base 100, with an accommodation cavity inside. A column 110 is provided at the center of the upper end surface of the base 100. An axial pipe cavity is provided inside the column 110, and the pipe cavity is communicated with the accommodation cavity;

[0042] A hoisting mechanism 200, eccentrically arranged in the accommodation cavity for winding and unwinding a steel wire rope; as a preference, the hoisting mechanism 200 includes: a fixed shaft 210, vertically and eccentrically arranged in the accommodation cavity; a volute spring 220, sleeved on the outer periphery of the fixed shaft 210, with the inner end of the volute spring 220 connected to the fixed shaft 210; a drum 230, sleeved on the outer periphery of the volute spring 220, with the inner wall of the drum 230 connected to the outer end of the volute spring 220; the outer periphery of the drum 230 is used for winding the steel wire rope; a large gear 240, sleeved on the outer periphery of the lower edge of the drum 240.

[0043] A braking mechanism 300, which is arranged on one side of the hoisting mechanism 200 and is used to lock and release the hoisting mechanism 200; As a preference, the braking mechanism 300 includes: a rotating shaft 310, which is rotatably arranged on one side of the fixed shaft 210; A pinion 320 is arranged in the middle of the rotating shaft 310 and meshes with the large gear 240; An electromagnetic brake 330, which is sleeved on the lower part of the rotating shaft 310 and is electrically connected to the controller 400, is used to brake or release the rotating shaft 310 under the control of the controller 400, so as to lock or release the hoisting mechanism 200.

[0044] A steel wire rope, which is wound on the hoisting mechanism 200, and the tail of the steel wire rope passes through the lumen and extends out of the top of the column 110 and is connected to the hook;

[0045] A lidar, which is arranged on the edge of the offshore platform and is used to detect the heave state of the sea surface,

[0046] A controller 400, which is arranged in the accommodation cavity and is located on one side of the braking mechanism 300; The controller 400 is electrically connected to the braking mechanism 300 and the lidar, and is used to send an instruction to the braking mechanism 300 according to the heave state of the sea surface detected by the lidar, so that it locks or releases the hoisting mechanism 200.

[0047] During the process of hoisting the sea intelligent hanging basket 1 with heave compensation by the deck to the offshore platform, first, it is connected to the hook of the crane through a steel wire rope. At this time, the electromagnetic brake 330 releases the rotating shaft 310, and the pinion 320 can freely rotate with the large gear 240. As the waves rise and fall, the scroll spring 220 winds up the steel wire rope when the waves rise, and the scroll spring 220 releases the steel wire rope when the waves fall, thus realizing the function of lifting and lowering compensation. The lidar detects the sea surface heave state in real time, and the controller 400 determines the sea surface heave state. When the controller 400 determines that the sea surface is calm and suitable for hoisting, it sends a signal to the electromagnetic brake 330, and the electromagnetic brake 330 brakes the rotating shaft 310, thereby locking the hoisting mechanism 200, and the crane hoists the sea intelligent hanging basket 1 with heave compensation and places it on the offshore platform. During the process of the crane placing the sea intelligent hanging basket 1 with heave compensation on the deck, the braking mechanism 300 first brakes the hoisting mechanism 200 to make the sea intelligent hanging basket 1 with heave compensation reach directly above the deck. The lidar detects the sea surface heave state in real time, and the controller 400 determines the sea surface heave state. When the controller 400 determines that the sea surface is calm, the controller 400 sends a signal to the electromagnetic brake 330, and the electromagnetic brake 330 releases the rotating shaft 310 to release the hoisting mechanism 200, and the sea intelligent hanging basket 1 with heave compensation falls on the deck. The scroll spring 220 winds up the steel wire rope when the waves rise, and the scroll spring 220 releases the steel wire rope when the waves fall, thus realizing the function of lifting and lowering compensation.

[0048] In another embodiment, the hoisting mechanism 200 includes: a fixed shaft 210, which is vertically and eccentrically arranged in the accommodating cavity; a scroll spring 220, which is sleeved on the outer periphery of the fixed shaft 210, and the inner end of the scroll spring 220 is connected to the fixed shaft 210; a drum 230, which is sleeved on the outer periphery of the scroll spring 220, and the inner wall of the drum 230 is connected to the outer end of the scroll spring 220; the outer periphery of the drum 230 is used for winding the steel wire rope; a large gear 240, which is sleeved on the outer periphery of the lower edge of the drum 240.

[0049] In another embodiment, the braking mechanism 300 includes: a rotating shaft 310, which is rotatably arranged on one side of the fixed shaft 210; a pinion 320 is arranged in the middle of the rotating shaft 310 and meshes with the large gear 240; an electromagnetic brake 330, which is sleeved on the lower part of the rotating shaft 310 and is electrically connected to the controller 400, and is used to brake or release the rotating shaft 310 under the control of the controller 400, thereby locking or releasing the hoisting mechanism 200.

[0050] In another embodiment, it further includes: a battery box 500, which is arranged on the other side of the hoisting mechanism 200 in the accommodation cavity and is electrically connected to the electromagnetic brake 330 and the controller 400 for supplying power to the electromagnetic brake 330 and the controller 400.

[0051] In another embodiment, it further includes: a collision prevention block 600, which is arranged on the lower end surface of the base 100 for reducing the impact force.

[0052] In another embodiment, the collision prevention block 600 is made of foam, and a 3 - 5 mm thick polyurea is sprayed on the outer surface of the collision prevention block.

[0053] In another embodiment, a handrail 120 is provided in the upper - middle part of the column 110.

[0054] In another embodiment, it further includes: a guide pulley 250, which is arranged in the accommodation cavity and is located on one side of the lower end of the column 110; a tensioning pulley 260, which is arranged in the accommodation cavity and is located between the guide pulley 250 and the hoisting mechanism 200 for tensioning the steel wire rope.

[0055] In another embodiment, it further includes:

[0056] A plurality of reinforcing ribs 130, which are evenly distributed along the circumference between the bottom of the column 110 and the upper end surface of the base 100.

[0057] In another embodiment, it further includes: a bracket 710, which is horizontally erected between the electromagnetic brake 330 and the pinion 320. Openings are provided on the bracket 710 for the lower ends of the fixed shaft 210 and the rotating shaft 310 to pass through respectively; vertical plates 711 extending upward are provided at both ends of the bracket 710; an upper plate 720, which is arranged at the upper ends of the vertical plates 711, and openings are provided on the upper plate 720 for the upper ends of the fixed shaft 210 and the rotating shaft 310 to pass through respectively.

[0058] In summary, for the intelligent offshore hanging basket 1 with heave compensation of the present invention, it is provided with a base 100, a hoisting mechanism 200, a braking mechanism 300, a steel wire rope, a lidar and a controller 400, and can provide heave compensation during the boarding process.

[0059] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. An intelligent offshore hanging basket with heave compensation, characterized in that: include: A base, wherein a receiving cavity is provided inside the base, a column is provided at the center of the upper end surface of the base, an axial tube cavity is provided inside the column, and the tube cavity is connected with the receiving cavity; A winch mechanism, which is eccentrically arranged in the accommodating cavity and is used for retracting and releasing the wire rope; A brake mechanism, which is arranged on one side of the hoisting mechanism and is used to lock and release the hoisting mechanism; A steel wire rope is wound around the hoisting mechanism, and the tail of the steel wire rope passes through the tube cavity and extends out of the top of the column to be connected to the hook; A laser radar is arranged at the edge of the ocean platform to detect the rise and fall of the sea surface. A controller is arranged in the accommodating cavity and is located on one side of the braking mechanism; the controller is electrically connected to the braking mechanism and the laser radar, and is used to send instructions to the braking mechanism according to the sea surface rise and fall state detected by the laser radar, so as to lock or release the winch mechanism.

2. The offshore intelligent hanging basket with heave compensation according to claim 1 is characterized in that: The hoisting mechanism comprises: A fixed shaft, which is vertically eccentrically arranged in the accommodating cavity; A spiral spring, which is sleeved on the outer circumference of the fixed shaft, and the inner end of the spiral spring is connected to the fixed shaft; A drum, which is sleeved on the outer circumference of the spiral spring, and the inner wall of the drum is connected to the outer end of the spiral spring; the outer circumference of the drum is used for winding the wire rope; A large gear is sleeved on the outer periphery of the lower edge of the reel.

3. The offshore intelligent hanging basket with heave compensation according to claim 2 is characterized in that: The braking mechanism comprises: A rotating shaft, which is rotatably disposed on one side of the fixed shaft; A small gear, which is arranged in the middle of the rotating shaft and meshes with the large gear; The electromagnetic brake is sleeved on the lower part of the rotating shaft and is electrically connected to the controller, and is used for braking or releasing the rotating shaft under the control of the controller, thereby locking or releasing the hoisting mechanism.

4. The offshore intelligent hanging basket with heave compensation according to claim 3 is characterized in that: Also includes: A battery box is arranged in the accommodating cavity on the other side of the hoisting mechanism and is electrically connected to the electromagnetic brake and the controller to supply power to the electromagnetic brake and the controller.

5. The offshore intelligent hanging basket with heave compensation according to claim 3 is characterized in that: Also includes: An anti-collision block is arranged on the lower end surface of the base and is used to reduce the impact force.

6. The intelligent offshore hanging basket with heave compensation according to claim 5, characterized in that: The anti-collision block is made of foam, and polyurea with a thickness of 3 to 5 mm is sprayed on the outer surface of the anti-collision block.

7. The offshore intelligent hanging basket with heave compensation according to claim 1 or 2, characterized in that: A handrail is arranged at the upper middle part of the column.

8. The intelligent offshore hanging basket with heave compensation according to claim 3, characterized in that: Also includes: A guide pulley, which is arranged in the accommodating cavity and located at one side of the lower end of the column; The tensioning wheel is arranged in the accommodating cavity and located between the guide pulley and the hoisting mechanism, and is used for tensioning the steel wire rope.

9. The intelligent offshore hanging basket with heave compensation according to claim 3, characterized in that: Also includes: A plurality of reinforcing ribs are evenly distributed along the circumference between the bottom of the column and the upper end surface of the base.

10. The offshore intelligent hanging basket with heave compensation according to claim 3, characterized in that: Also includes: A bracket, which is horizontally mounted between the electromagnetic brake and the pinion gear, and the bracket is provided with openings for the lower ends of the fixed shaft and the rotating shaft to pass through respectively; Both ends of the bracket are provided with vertical plates extending upwards; An upper plate is arranged on the upper end of the vertical plate, and the upper plate is provided with openings for the upper ends of the fixed shaft and the rotating shaft to pass through respectively.

Images