Hoisting frame for offshore platform

Abstract

The utility model discloses a hoisting frame for an offshore platform, which relates to the technical field of offshore platform hoisting equipment and comprises a hoisting truss, a bidirectional hoisting stabilizing component is arranged on the inner side of the lower end of the hoisting truss and comprises a pull rope, a movable sleeve is slidably connected to the outer side of the lower end of the pull rope, and the pull rope penetrates through the movable sleeve. The ends, away from each other, of the two movable sleeves are fixedly connected with guide columns, the outer end of each guide column is fixedly connected with a blocking plate, the end, close to the corresponding guide column, of each blocking plate is fixedly connected with a spring, the end, away from the corresponding blocking plate, of each spring is fixedly connected with a hoisting truss, and the upper end of each pull rope is wound with a winding wheel. The inner end of the winding wheel is fixedly connected with a follow-up shaft. According to the utility model, an object to be hoisted on the offshore platform can be stably guided and moved through the hoisting truss, so that the instability of the hoisted object in the moving process is reduced, and the safety in the hoisting process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of offshore platform lifting equipment, specifically a lifting frame for offshore platforms. Background Technology

[0002] With the development of the offshore oil industry, the technical level of marine engineering design, construction and installation has been rapidly developed and improved, and the scale of offshore platform construction is gradually expanding. Therefore, the frequency of use of lifting frames is also increasing.

[0003] Existing technologies have problems with the swaying of objects during the lifting and moving of objects on offshore platforms using hoisting equipment. This instability can lead to significant safety hazards. To address this, we propose a hoisting frame for offshore platforms. Utility Model Content

[0004] The purpose of this invention is to provide a lifting frame for offshore platforms to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lifting frame for an offshore platform, comprising a lifting truss, wherein a bidirectional lifting stabilizing component is provided on the inner side of the lower end of the lifting truss, the bidirectional lifting stabilizing component comprising a pull rope, a movable sleeve slidably connected to the outer side of the lower end of the pull rope and the pull rope passing through the movable sleeve, a hook fixedly connected to the lower end of the pull rope, guide posts fixedly connected to the ends of the two movable sleeves away from each other, a blocking plate fixedly connected to the outer end of each guide post, a spring fixedly connected to the end of the blocking plate near the guide post, the end of the spring away from the blocking plate fixedly connected to the lifting truss, a winding wheel wound around the upper end of each pull rope, a follower shaft fixedly connected to the inner end of the winding wheel, an L-shaped plate rotatably connected to the outer end of the follower shaft via a bearing, a short gear fixedly connected to the inner end of the follower shaft, rotating rods threadedly connected to the surfaces of the two L-shaped plates, the right end of the rotating rod passing through the lifting truss and fixedly connected to the output end of a second stepper motor, the end of the second stepper motor fixedly connected to the lifting truss near the lifting truss.

[0006] Preferably, each of the two follower shafts is fixedly connected to a short gear at one end close to each other. A long gear is meshed with the upper end of the short gear. A rotating shaft is fixedly connected to the surface of the long gear and passes through the long gear. The right end of the rotating shaft passes through the hoisting truss and is fixedly connected to the output end of the first stepper motor. The end of the first stepper motor close to the hoisting truss is fixedly connected to the hoisting truss.

[0007] Preferably, the outer end of the rotating rod has two symmetrically arranged threaded grooves, and the rotating rod passes through the L-shaped plate.

[0008] Preferably, the lower ends of both sides of the hoisting truss are fixedly connected to a fixing plate, and each fixing plate has two symmetrically arranged mounting holes at its upper end.

[0009] Preferably, the end of the rotating shaft furthest from the first stepper motor is rotatably connected to the hoisting truss via a bearing.

[0010] Preferably, the end of the rotating rod away from the second stepper motor is rotatably connected to the hoisting truss via a bearing.

[0011] Preferably, the outer end of the guide column is slidably connected to the hoisting truss, and the guide column is installed through the hoisting truss.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Equipped with a lifting truss, bidirectional lifting stabilization components, fixing plates, and mounting holes, it can complete the lifting of objects from an offshore platform. First, an external power source powers the second stepper motor, which in turn drives a rotating rod. This rotating rod causes two symmetrically arranged L-shaped plates to move closer or further apart. The L-shaped plates then drive a follower shaft, winding wheel, and pull rope to move closer or further apart. When the two hooks align with the lifting holes on the object being lifted, the hooks can be tightened. Next, an external power source powers the first stepper motor, which in turn drives a rotating shaft to rotate, thus... The long gear rotates, which in turn drives two symmetrically arranged short gears to rotate in opposite directions. These short gears then drive the follower shaft to rotate, which in turn drives the winding wheel to rotate. The winding wheel then moves the pull rope upwards, thus moving the object being lifted. During the hook's positional movement, the guide column and the lifting truss slide relative to each other. The guide column then drives the blocking plate to compress the spring or pull the rope, causing the pull rope to slide relative to the moving sleeve. This invention enables the smooth guiding and movement of objects lifted from an offshore platform via the lifting truss, reducing the instability of the lifted object during movement and improving safety during the lifting process.

[0014] 2. The system is equipped with a hoisting truss, a fixing plate, and mounting holes. This allows for alignment of the mounting holes with the pre-set external holes, alignment of the external bolts with the mounting holes, and finally, tightening of the external bolts with the mounting holes. This improves the stability of the hoisting truss. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the bidirectional hoisting stabilization component structure of this utility model. Figure 1 ;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a schematic diagram of the bidirectional hoisting stabilization component structure of this utility model. Figure 2 .

[0019] In the diagram: 1. Lifting truss; 2. Bidirectional lifting stabilizing assembly; 21. First stepper motor; 22. Rotating shaft; 23. Long gear; 24. Short gear; 25. Follower shaft; 26. L-shaped plate; 27. Winding wheel; 28. Pull rope; 29. ​​Hook; 210. Moving sleeve; 211. Guide column; 212. Blocking plate; 213. Spring; 214. Rotating rod; 215. Second stepper motor; 3. Fixing plate; 4. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 This utility model provides a technical solution: a lifting frame for an offshore platform, including a lifting truss 1. A bidirectional lifting stabilizing component 2 is provided on the inner side of the lower end of the lifting truss 1. The bidirectional lifting stabilizing component 2 includes a pull rope 28. A movable sleeve 210 is slidably connected to the outer side of the lower end of the pull rope 28, and the pull rope 28 passes through the movable sleeve 210. A hook 29 is fixedly connected to the lower end of the pull rope 28. Guide posts 211 are fixedly connected to the two movable sleeves 210 at their ends away from each other. A blocking plate 212 is fixedly connected to the outer end of each guide post 211. The end of the blocking plate 212 near the guide post 211 is fixed. A spring 213 is connected, and the end of the spring 213 away from the blocking plate 212 is fixedly connected to the hoisting truss 1. Each pull rope 28 has a winding wheel 27 wound around its upper end. The inner end of the winding wheel 27 is fixedly connected to a follower shaft 25. The outer end of the follower shaft 25 is rotatably connected to an L-shaped plate 26 through a bearing. The inner end of the follower shaft 25 is fixedly connected to a short gear 24. The surfaces of the two L-shaped plates 26 are threaded with rotating rods 214. The right end of the rotating rod 214 passes through the hoisting truss 1 and is fixedly connected to the output end of the second stepper motor 215. The end of the second stepper motor 215 near the hoisting truss 1 is fixedly connected to the hoisting truss 1.

[0022] In this embodiment, two follower shafts 25 are fixedly connected to one end of each other with a short gear 24. The upper end of the short gear 24 is meshed with a long gear 23. The surface of the long gear 23 is fixedly connected with a rotating shaft 22, and the rotating shaft 22 passes through the long gear 23. The right end of the rotating shaft 22 passes through the hoisting truss 1 and is fixedly connected to the output end of the first stepper motor 21. The end of the first stepper motor 21 near the hoisting truss 1 is fixedly connected to the hoisting truss 1.

[0023] Specifically, the first stepper motor 21 is powered by an external power source. The output of the first stepper motor 21 drives the rotating shaft 22 to rotate, which in turn drives the long gear 23 to rotate. The long gear 23 then drives the short gear 24 to move in the opposite direction.

[0024] In this embodiment, the outer end of the rotating rod 214 has two symmetrically arranged threaded grooves, and the rotating rod 214 passes through the L-shaped plate 26.

[0025] Specifically, ensure that the rotating rod 214 does not interfere with the L-shaped plate 26.

[0026] In this embodiment, the lower ends of both sides of the hoisting truss 1 are fixedly connected to fixing plates 3, and each fixing plate 3 has two symmetrically arranged mounting holes 4 at its upper end.

[0027] Specifically, by using the fixing plate 3 and the mounting hole 4, the external preset hole of the mounting hole 4 can be aligned. Then, the external bolts are aligned with the position of the mounting hole 4, and finally, the external bolts are locked to the mounting hole 4, which improves the stability of the hoisting truss 1.

[0028] In this embodiment, the end of the rotating shaft 22 away from the first stepper motor 21 is rotatably connected to the hoisting truss 1 via a bearing.

[0029] Specifically, ensure that the rotating shaft 22 does not interfere with the hoisting truss 1.

[0030] In this embodiment, the end of the rotating rod 214 away from the second stepper motor 215 is rotatably connected to the hoisting truss 1 via a bearing.

[0031] Specifically, ensure that the rotating rod 214 does not interfere with the hoisting truss 1.

[0032] In this embodiment, the outer end of the guide column 211 is slidably connected to the hoisting truss 1, and the guide column 211 is set through the hoisting truss 1.

[0033] Specifically, ensure that the guide column 211 does not interfere with the hoisting truss 1 during the movement process.

[0034] Working Principle: When lifting objects from an offshore platform, the second stepper motor 215 is first powered by an external power source. The output of the second stepper motor 215 drives the rotating rod 214 to rotate. The rotating rod 214 then moves two symmetrically arranged L-shaped plates 26 closer together or further apart. The L-shaped plates 26, in turn, move the follower shaft 25, the winding wheel 27, and the pull rope 28 closer together or further apart. When the two hooks 29 are aligned with the lifting holes on the object being lifted, the hooks 29 can be tightened. Next, the first stepper motor 21 is powered by an external power source. The output of the first stepper motor 21 drives the rotating shaft 22 to rotate, which in turn drives the long gear 23 to rotate. The long gear 23 drives two symmetrically arranged short gears 24 to rotate in opposite directions. At this time, the short gears 24 drive the follower shaft 25 to rotate, which in turn drives the winding wheel 27 to rotate. The winding wheel 27 drives the pull rope 28 to move upward, which in turn drives the object being lifted to move upward. During the position movement of the hook 29, the guide column 211 and the lifting truss 1 slide relative to each other. At this time, the guide column 211 drives the blocking plate 212 to compress the spring 213 or pull the rope 28. The pull rope 28 and the moving sleeve 210 slide relative to each other. This utility model realizes the smooth guidance and movement of objects being lifted on the offshore platform through the lifting truss 1, reduces the instability of the object being lifted during the movement, and improves the safety of the lifting process.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting frame for an offshore platform, comprising a hoisting truss (1), characterised in that: A bidirectional hoisting stabilizing assembly (2) is provided on the inner side of the lower end of the hoisting truss (1). The bidirectional hoisting stabilizing assembly (2) includes a pull rope (28). A movable sleeve (210) is slidably connected to the outer side of the lower end of the pull rope (28), and the pull rope (28) passes through the movable sleeve (210). A hook (29) is fixedly connected to the lower end of the pull rope (28). Guide posts (211) are fixedly connected to the two movable sleeves (210) at their ends away from each other. A baffle plate (212) is fixedly connected to the outer end of each guide post (211). A spring (213) is fixedly connected to the end of the baffle plate (212) near the guide post (211). The spring (213) is located away from the baffle plate. One end of the baffle (212) is fixedly connected to the hoisting truss (1). Each of the pull ropes (28) has a winding wheel (27) wrapped around its upper end. The inner end of the winding wheel (27) is fixedly connected to a follower shaft (25). The outer end of the follower shaft (25) is rotatably connected to an L-shaped plate (26) through a bearing. The inner end of the follower shaft (25) is fixedly connected to a short gear (24). The surfaces of the two L-shaped plates (26) are threaded with rotating rods (214). The right end of the rotating rod (214) passes through the hoisting truss (1) and is fixedly connected to the output end of the second stepper motor (215). The second stepper motor (215) is fixedly connected to the hoisting truss (1) at one end.

2. A hoisting frame for an offshore platform according to claim 1, characterized in that: Two follower shafts (25) are fixedly connected to a short gear (24) at one end close to each other. A long gear (23) is meshed with the upper end of the short gear (24). A rotating shaft (22) is fixedly connected to the surface of the long gear (23) and the rotating shaft (22) passes through the long gear (23). The right end of the rotating shaft (22) passes through the hoisting truss (1) and is fixedly connected to the output end of the first stepper motor (21). The end of the first stepper motor (21) close to the hoisting truss (1) is fixedly connected to the hoisting truss (1).

3. A hoisting frame for an offshore platform according to claim 1, characterized in that: The outer end of the rotating rod (214) has two symmetrically arranged threaded grooves, and the rotating rod (214) passes through the L-shaped plate (26).

4. A hoisting frame for an offshore platform according to claim 1, characterized in that: The lower ends of both sides of the hoisting truss (1) are fixedly connected to fixing plates (3), and each fixing plate (3) has two symmetrically arranged mounting holes (4) on its upper end.

5. A hoisting frame for an offshore platform according to claim 2, characterized in that: The end of the rotating shaft (22) away from the first stepper motor (21) is rotatably connected to the hoisting truss (1) via a bearing.

6. A hoisting frame for an offshore platform according to claim 1, characterized in that: The end of the rotating rod (214) away from the second stepper motor (215) is rotatably connected to the hoisting truss (1) via a bearing.

7. A hoisting frame for an offshore platform according to claim 1, characterized in that: The guide column (211) is slidably connected to the hoisting truss (1) at its outer end, and the guide column (211) is set through the hoisting truss (1).

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