Ship saturated diving bell compensation device

Abstract

The invention relates to the technical field of marine equipment, in particular to a ship saturated diving bell compensation device which comprises a ship deck, a plurality of supporting columns are fixedly connected to the top end of the ship deck, a box cover is fixedly connected to the top ends of the supporting columns, and a compensation mechanism, a hot air blowing mechanism, a sealing mechanism and a limiting mechanism are arranged on the box cover; the compensation mechanism comprises lifting holes formed in the front end and the rear end of the box cover, sliding grooves are formed in the left ends and the right ends of the two lifting holes, the upper end and the lower end of each sliding groove communicate with C-shaped grooves, a telescopic column is arranged at an outlet of each C-shaped groove, and hydraulic oil is arranged between each telescopic column and the corresponding C-shaped groove. The telescopic column moves up and down in the C-shaped groove and enables hydraulic oil in the C-shaped groove to flow along with the telescopic column. Water vapor can be prevented from entering the compensation mechanism, so that the compensation mechanism can be prevented from being corroded, and the service life of the compensation mechanism is further prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of marine equipment, and in particular to a ship saturation diving bell compensation device. Background Art

[0002] With the construction and development of marine equipment technology, saturation diving is widely used in rescue and salvage, marine development and other fields. Saturation diving technology has higher diving operation efficiency and safety. For offshore lifting operations with large loads such as lifting diving bells, the lifting armored cable may break due to the complex force of the load in seawater. In addition, the movement of the mother ship caused by waves will be transmitted to the underwater diving bell through the armored cable, affecting the safety and work efficiency of underwater operations. Therefore, the heave compensation technology for the saturation diving bell lifting system under severe sea conditions has become a top priority in the research of saturation diving technology.

[0003] Under the existing technical framework, the compensation mechanism of the diving bell relies on the elastic deformation characteristics of the spring to absorb the energy generated by the heave and sinking movement of the ship. However, when the diving bell operates in the marine environment, the spring inevitably comes into contact with ocean water vapor, which is rich in salt. This corrosive environment will significantly promote the initiation and propagation rate of fatigue cracks. In addition, when the spring is continuously subjected to cyclic fatigue loads, its corrosion process is also accelerated, which directly leads to an increased risk of fatigue failure of the spring.

[0004] In addition, when the diving bell is not in working state, the springs often lack necessary protection measures, resulting in their continuous exposure to the marine environment. In this environment, the springs not only have to withstand natural weathering and sunlight erosion, but may also be subjected to the combined effects of physical and chemical factors such as waves and salt spray. These factors will further reduce the expected service life of the springs. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a ship saturation diving bell compensation device.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a ship saturation diving bell compensation device, comprising a ship deck, a plurality of support columns are fixedly connected to the top of the ship deck, a box cover is fixedly connected to the top of the plurality of support columns, and a compensation mechanism, a hot air blowing mechanism, a sealing mechanism and a limiting mechanism are arranged on the box cover; The compensation mechanism includes lifting holes opened at the front and rear ends of the box cover, and slide grooves are opened at the left and right ends of the two lifting holes. The upper and lower ends of each slide groove are connected with a C-shaped groove. A telescopic column is arranged at the outlet of each C-shaped groove. Hydraulic oil is arranged between each group of telescopic columns and the C-shaped groove. The telescopic column moves up and down in the C-shaped groove and causes the hydraulic oil in the C-shaped groove to flow accordingly. A blocking plate is fixedly connected to the inner wall of each C-shaped groove, and a plurality of flow-limiting holes are pierced on each blocking plate. The flow-limiting holes are used to limit the flow of the hydraulic oil and generate resistance to the telescopic column. The hot air blowing mechanism includes a placement box arranged in the lifting hole, both ends of the placement box are fixedly connected with drying plates, the outer wall of the placement box corresponds to the inner wall of the box cover on both sides of which are fixedly connected with drying frames, each of the drying plates and the box cover is provided with a mesh-shaped channel, each group of the mesh-shaped channels is pierced with a plurality of oblique holes at one end close to each other, and each oblique hole is used to blow out the hot air obliquely to prevent ocean water vapor from entering the lifting hole.

[0007] Preferably, the compensation mechanism also includes a sliding column fixedly connected to the corresponding lifting holes at the left and right ends of the placement box, and also includes a spherical groove opened on the inner wall of the slide groove, each inner wall of the spherical groove is provided with a ball, and each group of the balls is in contact with each sliding column.

[0008] Preferably, the hot air blowing mechanism also includes square holes penetrated on the front and rear sides of the upper end of the box cover, and a hot air blower fixedly connected to the right side of the upper end of the box cover, the hot air blower outlet is fixedly connected to a connecting pipe, the outer wall of the connecting pipe is fixedly connected to four connecting pipes, the four connecting pipes and two drying plates are fixedly connected to two drying frames respectively.

[0009] Preferably, the sealing mechanism includes a placement groove opened at the end where the drying plate and the drying frame are close to each other, and a sealing ring is provided on the inner wall of each placement groove. U-shaped plates are fixedly connected on the upper and lower sides of the end where each group of drying plates and drying frames are far away from each other, and a hydraulic rod is fixedly passed through each U-shaped plate, and each telescopic end of the hydraulic rod is fixedly connected to each sealing ring respectively.

[0010] Preferably, the limiting mechanism includes an electric push rod fixedly passing through the left end of the box cover, the telescopic end of the electric push rod is fixedly connected to a second push plate, the second push plate and the box cover are slidably connected, the end of the second push plate close to the placement box is fixedly connected to a plurality of springs, the other end of each spring is fixedly connected to the first push plate, the first push plate and the box cover are slidably connected, and the end of the first push plate close to the placement box is fixedly connected to a limiting column.

[0011] Preferably, a fixing plate is fixedly connected to the left end of the placement box, and a limiting groove matching the shape of the limiting column is formed at one end of the fixing plate away from the placement box.

[0012] Preferably, a traction mechanism is provided inside the placement box, and the traction mechanism includes a motor fixedly connected to one side of the inner wall of the placement box, a driving end of the motor is fixedly connected to a driving shaft, and the driving shaft is rotatably connected to the placement box.

[0013] Preferably, a winch is fixedly connected to the outer wall of the drive shaft, a steel wire rope is wound around the outer wall of the winch, the other end of the steel wire rope is fixedly connected to the diving bell body, and the steel wire rope passes through the placement box.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The compensation mechanism can absorb the energy generated by the heave movement through the flow limit of the hydraulic oil, so it will not break due to a long time, thereby extending the service life of the compensation mechanism. The hot air blowing mechanism can disperse the external water vapor during use to prevent water vapor from entering the compensation mechanism, thereby preventing corrosion to the compensation mechanism. The drying plate and drying frame have a sun protection effect, further extending the service life of the compensation mechanism. 2. Through the provided sealing mechanism, the sealing ring can be tightly fitted to the outer side of the lifting hole corresponding to the outer wall of the box cover when not in use, thereby preventing water vapor from entering the compensation mechanism from the gap between the drying plate, the drying frame and the box cover when not in use, avoiding the erosion of water vapor and protecting the compensation mechanism. Through the provided limiting mechanism, the placement box can be limited and fixed when not in use, so that the sealing ring can completely cover the outer side of the lifting hole, thereby ensuring the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a ship saturation diving bell compensation device of the present invention; Figure 2 It is a bottom-up stereoscopic schematic diagram of a ship saturation diving bell compensation device of the present invention; Figure 3 A cross-sectional view of a housing of a ship saturation diving bell compensation device according to the present invention; Figure 4 This is a diagram showing the internal structure of a lifting hole of a ship saturation diving bell compensation device according to the present invention; Figure 5 A cross-sectional view of a housing of a ship saturation diving bell compensation device according to the present invention in another direction; Figure 6 It is an oblique cross-sectional view of a drying plate and a drying frame of a ship saturation diving bell compensation device of the present invention; Figure 7 A straight cross-sectional view of a drying plate and a drying frame of a ship saturation diving bell compensation device of the present invention; Figure 8 A cross-sectional view of a drying plate of a ship saturation diving bell compensation device according to the present invention in another direction; Fig. 9 It is a partial cross-sectional view of a housing of a ship saturation diving bell compensation device of the present invention; Fig.10 This is a partial structural exploded view of a ship saturation diving bell compensation device of the present invention; Fig.11 The present invention is a cross-sectional view of a placement box of a ship saturation diving bell compensation device.

[0016] In the figure: 1. ship deck; 2. support column; 3. box cover; 4. drying plate; 5. hot air blower; 6. connecting pipe; 7. connecting pipe; 8. square hole; 9. diving bell body; 10. wire rope; 11. placement box; 12. drying frame; 13. lifting hole; 14. sliding column; 15. sliding groove; 16. ball; 17. spherical groove; 18. C-shaped groove; 19. telescopic column; 20. flow limiting hole; 21. blocking plate; 22. U-shaped plate; 23. hydraulic rod; 24. mesh-shaped channel; 25. oblique hole; 26. sealing ring; 27. placement groove; 28. fixing plate; 29. ​​first push plate; 30. second push plate; 31. electric push rod; 32. spring; 33. limit column; 34. limit groove; 35. motor; 36. winch; 37. drive shaft. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] like Figure 1-Figure 11 A ship saturation diving bell compensation device shown includes a ship deck 1, a plurality of support columns 2 are fixedly connected to the top of the ship deck 1, a box cover 3 is fixedly connected to the top of the plurality of support columns 2, and a compensation mechanism, a hot air blowing mechanism, a sealing mechanism and a limiting mechanism are arranged on the box cover 3. The compensation mechanism can be used to continuously perform compensation operations to avoid breakage during use. The hot air blowing mechanism can be used to transport hot air to the outside during the compensation process. The sealing mechanism can be used to perform sealing processing when not in use to prevent external water vapor from entering the interior of the compensation mechanism. The limiting mechanism can be used to limit and fix the placement box 11 to ensure the sealing effect. like Figure 4 , Figure 5As shown, the compensation mechanism includes lifting holes 13 opened at the front and rear ends of the box cover 3, and slide grooves 15 are opened at the left and right ends of the two lifting holes 13. The upper and lower ends of each slide groove 15 are connected with a C-shaped groove 18. A telescopic column 19 is arranged at the outlet of each C-shaped groove 18. Hydraulic oil is arranged between each group of telescopic columns 19 and the C-shaped groove 18. The telescopic column 19 moves up and down in the C-shaped groove 18 and makes the hydraulic oil in the C-shaped groove 18 flow accordingly. A blocking plate 21 is fixedly connected to the inner wall of each C-shaped groove 18, and a plurality of flow limiting holes 20 are pierced on each blocking plate 21. The flow limiting holes 20 are used to limit the flow of the hydraulic oil and generate resistance to the telescopic column 19; like Figure 2 , Figure 3 , Figure 6 , Figure 8 As shown, the hot air blowing mechanism includes a placement box 11 arranged in the lifting hole 13, and both ends of the placement box 11 are fixedly connected with drying plates 4, and the outer wall of the placement box 11 corresponds to the inner wall of the box cover 3 on both sides thereof. A drying frame 12 is fixedly connected, and each drying plate 4 and the box cover 3 are provided with a mesh-shaped channel 24 inside. Each group of mesh-shaped channels 24 is pierced with a plurality of oblique holes 25 at one end close to each other, and each oblique hole 25 is used to blow out the hot air obliquely to prevent ocean water vapor from entering the lifting hole 13. By arranging the ball 16 and the flow limiting hole 20, the stability and service life of the compensation mechanism are significantly improved.

[0019] like Figure 5 As shown, the compensation mechanism also includes a slide post 14 fixedly connected to the corresponding lifting holes 13 at the left and right ends of the placement box 11, and also includes a spherical groove 17 opened on the inner wall of the slide groove 15, and each spherical groove 17 is provided with a ball 16 on the inner wall, and each group of balls 16 is in contact with each slide post 14. The slide post 14 slides up and down in the slide groove 15, and the provision of the ball 16 significantly reduces the friction resistance during the sliding process, ensuring the smoothness and stability of the sliding.

[0020] like Figure 1 , Figure 4 As shown, the hot air blowing mechanism also includes a square hole 8 penetrating the front and rear sides of the upper end of the box cover 3, and a hot air blower 5 fixedly connected to the upper right side of the box cover 3. The air outlet of the hot air blower 5 is fixedly connected to a connecting pipe 6. The outer wall of the connecting pipe 6 is fixedly connected to four connecting pipes 7. The four connecting pipes 7 and the two drying plates 4 are respectively fixedly connected to the two drying frames 12. After the hot air blower 5 is started, the hot air is dispersed to the four connecting pipes 7 through the connecting pipe 6. The connecting pipes 7 are elastic and can change their shapes freely, and then enter the mesh-shaped channel 24 in the drying plate 4 and the drying frame 12.

[0021] like Figure 7As shown, the sealing mechanism includes a placement groove 27 opened at the end of the drying plate 4 and the drying frame 12 close to each other, and a sealing ring 26 is arranged on the inner wall of each placement groove 27. U-shaped plates 22 are fixedly connected to the upper and lower sides of each set of drying plates 4 and drying frames 12 away from each other. A hydraulic rod 23 is fixedly penetrated through each U-shaped plate 22, and each telescopic end of each hydraulic rod 23 is fixedly connected to each sealing ring 26. The hydraulic rod 23 pushes the sealing ring 26 to move in the direction close to the box cover 3, covering the outer side of the lifting hole 13, and further preventing the entry of external water vapor.

[0022] like Fig. 9 , Fig.10 As shown, the limiting mechanism includes an electric push rod 31 fixedly passing through the left end of the box cover 3, the telescopic end of the electric push rod 31 is fixedly connected to the second push plate 30, the second push plate 30 and the box cover 3 are slidably connected, the end of the second push plate 30 close to the placement box 11 is fixedly connected to a plurality of springs 32, the other end of each spring 32 is fixedly connected to the first push plate 29, the first push plate 29 and the box cover 3 are slidably connected, the end of the first push plate 29 close to the placement box 11 is fixedly connected to the limiting column 33, the left end of the placement box 11 is fixedly connected to the fixing plate 28, and the end of the fixing plate 28 away from the placement box 11 is provided with a limiting groove 34 that matches the shape of the limiting column 33. When the placement box 11 needs to be fixed, the electric push rod 31 pushes the second push plate 30 and the first push plate 29 to move towards the placement box 11, so that the limit column 33 is inserted into the limit groove 34 on the fixing plate 28 to achieve fixation. When the placement box 11 needs to be released, the electric push rod 31 moves in the opposite direction, so that the limit column 33 leaves the limit groove 34 and releases the limit.

[0023] like Fig.11 As shown, a traction mechanism is provided inside the placement box 11, and the traction mechanism includes a motor 35 fixedly connected to one side of the inner wall of the placement box 11, a driving end of the motor 35 is fixedly connected to a driving shaft 37, the driving shaft 37 is rotatably connected to the placement box 11, a winch 36 is fixedly connected to the outer wall of the driving shaft 37, a steel wire rope 10 is wound around the outer wall of the winch 36, and the other end of the steel wire rope 10 is fixedly connected to the diving bell body 9, and the steel wire rope 10 passes through the placement box 11. After the motor 35 is started, the driving shaft 37 and the winch 36 are driven to rotate, so that the steel wire rope 10 is in a state of releasing or retracting, and the other end of the steel wire rope 10 is fixedly connected to the diving bell body 9. By controlling the release and retraction of the steel wire rope 10, the traction and release of the diving bell body 9 can be achieved.

[0024] Working principle: First, the electric push rod 31 is started to move the second push plate 30, the spring 32 and the first push plate 29 away from the fixed plate 28, and the limit column 33 leaves the range of the limit groove 34, and the limit of the placement box 11 is released. At this time, the motor 35 is started to rotate the drive shaft 37 and the winch 36, so that the wire rope 10 is in a line-releasing state, and the diving bell body 9 passes through the circular hole on the ship deck 1 and enters the ocean. At this time, the operator comes out of the diving bell body 9 to work; When the ship is operating, it rises and falls on the sea surface. At this time, the ship deck 1, support column 2 and box cover 3 follow the rise and fall movement. At this time, the telescopic columns 19 on the upper and lower sides move up and down in the C-shaped groove 18. At this time, the hydraulic oil in the C-shaped groove 18 follows the movement. The existence of the limited flow hole 20 can block the hydraulic oil. Therefore, the energy generated is absorbed and processed by the hydraulic oil to ensure the compensation operation of the diving bell body 9. When the telescopic column 19 moves up and down, the ball 16 can reduce the friction force, so that the compensation is smoother, thereby avoiding In case of sudden breakage during compensation, the service life of the compensation mechanism is extended. During compensation, the hot air blower 5 is started to disperse the hot air to the connecting pipe 7 through the connecting pipe 6, and then disperse it to the drying plate 4 and the drying frame 12. The mesh-shaped channel 24 in the drying plate 4 and the drying frame 12 distributes the hot air to each oblique hole 25 and sprays it out through the oblique hole 25. Since the oblique hole 25 is inclined, the hot air is obliquely outward during the blowing process, so it can prevent water vapor from entering the lifting hole 13 during the compensation process and protect the internal structure. When the operation is completed, the electric push rod 31 is started in reverse to push the second push plate 30 towards the placement box 11, and the limit column 33 contacts the fixed plate 28 and the extrusion spring 32. When the limit groove 34 and the limit column 33 are aligned, the elastic reset action of the spring 32 makes the limit column 33 fit into the limit groove 34, so that the fixed plate 28 and the placement box 11 can be limited and fixed to prevent the placement box 11 from continuing to shake up and down. At the same time, the hydraulic rod 23 is started to push the sealing ring 26 towards the box cover 3, and the sealing ring 26 covers the outside of the lifting hole 13, so as to prevent external water vapor from entering the lifting hole 13 when not in use, thereby further protecting it.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A ship saturation diving bell compensation device, comprising a ship deck (1), a plurality of support columns (2) being fixedly connected to the top of the ship deck (1), a plurality of box covers (3) being fixedly connected to the top of the support columns (2), characterized in that: The box cover (3) is provided with a compensation mechanism, a hot air blowing mechanism, a sealing mechanism and a limiting mechanism; The compensation mechanism comprises lifting holes (13) provided at the front and rear ends of the box cover (3), and slide grooves (15) are provided at the left and right ends of the two lifting holes (13). The upper and lower ends of each slide groove (15) are connected to a C-shaped groove (18), and a telescopic column (19) is provided at the outlet of each C-shaped groove (18). Hydraulic oil is provided between each group of telescopic columns (19) and the C-shaped groove (18). The telescopic column (19) moves up and down in the C-shaped groove (18) and causes the hydraulic oil in the C-shaped groove (18) to flow therewith. A blocking plate (21) is fixedly connected to the inner wall of each C-shaped groove (18), and a plurality of flow limiting holes (20) are pierced on each blocking plate (21). The flow limiting holes (20) are used to limit the flow of the hydraulic oil and generate resistance to the telescopic column (19); The hot air blowing mechanism comprises a placement box (11) arranged in the lifting hole (13), both ends of the placement box (11) are fixedly connected to drying plates (4), the outer wall of the placement box (11) corresponds to the inner wall of the box cover (3) on both sides thereof and is fixedly connected to drying frames (12), each of the drying plates (4) and the box cover (3) is provided with a mesh-shaped channel (24), each group of the mesh-shaped channels (24) is provided with a plurality of oblique holes (25) at one end close to each other, and each oblique hole (25) is used to blow out hot air obliquely to prevent ocean water vapor from entering the lifting hole (13).

2. A ship saturation diving bell compensation device according to claim 1, characterized in that: The compensation mechanism also includes a slide column (14) fixedly connected to the inside of the corresponding lifting holes (13) at the left and right ends of the placement box (11), and also includes a spherical groove (17) opened on the inner wall of the slide groove (15), and each inner wall of the spherical groove (17) is provided with a ball (16), and each group of the balls (16) is in contact with each slide column (14).

3. A ship saturation diving bell compensation device according to claim 1, characterized in that: The hot air blowing mechanism further comprises square holes (8) penetrating the front and rear sides of the upper end of the box cover (3), and a hot air blower (5) fixedly connected to the right side of the upper end of the box cover (3); the air outlet of the hot air blower (5) is fixedly connected to a connecting pipe (6); the outer wall of the connecting pipe (6) is fixedly connected to four connecting pipes (7); the four connecting pipes (7) and the two drying plates (4) are respectively fixedly connected to the two drying frames (12).

4. A ship saturation diving bell compensation device according to claim 1, characterized in that: The sealing mechanism comprises a placement groove (27) provided at an end of the drying plate (4) and the drying frame (12) close to each other, a sealing ring (26) being provided on the inner wall of each placement groove (27), and a U-shaped plate (22) being fixedly connected to the upper and lower sides of an end of each group of the drying plate (4) and the drying frame (12) away from each other, a hydraulic rod (23) being fixedly passed through each U-shaped plate (22), and a telescopic end of each hydraulic rod (23) being fixedly connected to each sealing ring (26) respectively.

5. A ship saturation diving bell compensation device according to claim 1, characterized in that: The limiting mechanism comprises an electric push rod (31) fixedly extending through the left end of the box cover (3); the telescopic end of the electric push rod (31) is fixedly connected to a second push plate (30); the second push plate (30) and the box cover (3) are slidably connected; one end of the second push plate (30) close to the placement box (11) is fixedly connected to a plurality of springs (32); the other end of each of the springs (32) is fixedly connected to a first push plate (29); the first push plate (29) and the box cover (3) are slidably connected; and one end of the first push plate (29) close to the placement box (11) is fixedly connected to a limiting column (33).

6. A ship saturation diving bell compensation device according to claim 5, characterized in that: A fixing plate (28) is fixedly connected to the left end of the placement box (11), and a limiting groove (34) matching the shape of the limiting column (33) is formed at one end of the fixing plate (28) away from the placement box (11).

7. A ship saturation diving bell compensation device according to claim 1, characterized in that: A traction mechanism is provided inside the placement box (11), the traction mechanism comprising a motor (35) fixedly connected to one side of the inner wall of the placement box (11), a driving end of the motor (35) fixedly connected to a driving shaft (37), and the driving shaft (37) and the placement box (11) are rotatably connected.

8. A ship saturation diving bell compensation device according to claim 7, characterized in that: The outer wall of the drive shaft (37) is fixedly connected to a winch (36), the outer wall of the winch (36) is wound with a steel wire rope (10), the other end of the steel wire rope (10) is fixedly connected to a diving bell body (9), and the steel wire rope (10) passes through a placement box (11).

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