A ship side thruster cover system with a detachable cover grille and a disassembly method

Abstract

The present invention provides a ship side thruster cover system with a detachable cover grille and a disassembly method, which includes a cover grille, a grille rotating shaft, a side thruster tunnel penetration member, a linkage mechanism, a hydraulic cylinder and a control device. The cover grille and the grille rotating shaft are detachably connected, and the grille rotating shaft and the side thruster tunnel penetration member are detachably connected. The cover grille is composed of several plates. The present invention can optimally solve the following problems: on the one hand, when the ship side thruster fails and personnel need to enter the tunnel for maintenance, the grille and the grille rotating shaft of the ship side thruster cover can be normally disassembled and restored without destructive demolition, greatly reducing the maintenance cost of the ship; on the other hand, when the ship side thruster cover grille is accidentally damaged or aged and needs to be replaced, the ship side thruster cover does not need to be destructively demolished and can be normally disassembled and then replaced and restored, greatly reducing the maintenance cost of the ship.

Description

Technical Field

[0001] The present invention relates to the field of ship side thrusters, and in particular to a ship side thruster cover system with detachable cover gratings and a method for disassembling the cover gratings on the ship side thruster cover system. Background Art

[0002] In ship side thruster technology, in order to reduce the resistance when the ship is sailing straight, a technology of adding side thruster covers at both ends of the ship side thruster tunnel can be adopted. However, a common problem with this technology is that when there is a fault in the ship side thruster in the tunnel and maintenance is required, personnel cannot enter the tunnel, resulting in the inability to use the ship side thruster when the ship is docking at the port or when positioning accurately at sea, which affects the safety of the ship. Summary of the Invention

[0003] To solve the above technical problems in the field of ship side thrusters, the present invention proposes a ship side thruster cover system with detachable cover gratings and a disassembly method. When there is a fault in the ship side thruster and personnel need to enter the tunnel for maintenance or when the side thruster cover grating is accidentally damaged or its lifespan is aging and needs to be replaced, the side thruster cover does not need to be destructively removed and can be normally disassembled, replaced, and restored, greatly reducing the maintenance cost of the ship.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] One technical solution of the present invention is to provide a ship side thruster cover system with detachable cover gratings, including cover gratings, grating rotating shafts, and side thruster tunnel through-hull components. The cover gratings and the grating rotating shafts are detachably connected, and the grating rotating shafts and the side thruster tunnel through-hull components are detachably connected; the side thruster tunnel through-hull components are connected to the side thruster tunnel in a watertight through-hull manner, and the cover gratings are composed of several pieces.

[0006] According to one aspect of the present invention, the cover gratings and the grating rotating shafts are connected by bolts or flanges and are detachable.

[0007] According to one aspect of the present invention, the grating rotating shafts of the cover gratings and the side thruster tunnel through-hull components are connected by bolts or flanges and are detachable.

[0008] According to one aspect of the present invention, the cover gratings are composed of several pieces, and the several cover gratings together form a side thruster cover, and the formed side thruster cover matches the shape of the through-hole of the side thruster tunnel; when the cover gratings are unfolded, they together form a side thruster cover and cut off the entire side thruster tunnel of the ship; when the cover gratings are in a parallel state driven by the grating rotating shafts, the entire side thruster tunnel is opened, enabling the ship side thruster to operate; the cover gratings are smooth and consistent with the hull outer plate line shape around them when in the closed position.

[0009] According to one aspect of the present invention, it includes a side thrust tunnel, a covering grid, a grid shaft, a side thrust tunnel cabin-penetrating member, a hydraulic cylinder, a connecting rod mechanism and a control device; several of the side thrust tunnel cabin-penetrating members respectively form a watertight connection with the side thrust tunnel, several of the grid shafts correspond to the side thrust tunnel cabin-penetrating members in a one-to-one manner to form a detachable connection, and several of the covering grids correspond to the grid shafts in a one-to-one manner to form a detachable connection, and each of the grid shafts passes through the side thrust tunnel cabin-penetrating member and is connected to the hydraulic cylinder through the connecting rod mechanism, the hydraulic cylinder is fixed to the outside of the side thrust tunnel wall, and is connected to the control device through an oil pipe, and under the control of the control device, the hydraulic cylinder drives several of the grid shafts to link through the connecting rod mechanism, thereby driving several of the covering grids to link.

[0010] According to one aspect of the present invention, the outer wall of the side-thrust tunnel piercing component is connected to the side-thrust tunnel by welding, the inner wall of the side-thrust tunnel piercing component is provided with two first seals and two second seals, the grid plate rotating shaft is installed in the side-thrust tunnel piercing component, and the side-thrust tunnel wall provides support for the grid plate rotating shaft; a detachable nut is installed at the connection between the covering grid and the grid plate rotating shaft, and the detachable nut connects the bottom of the covering grid with the head of the grid plate rotating shaft, and a sealing gasket is installed at the bottom of the covering grid; a detachable bolt is installed at the connection between the grid plate rotating shaft and the side-thrust tunnel piercing component, and the detachable bolt connects the bottom of the grid plate rotating shaft with the bottom of the side-thrust tunnel piercing component.

[0011] The second technical solution of the present invention is to provide a method for disassembling a cover grid of a ship thrust cover system, comprising the following steps:

[0012] Step 1: Each set of side push cover is designed to be composed of several cover grids, one of which is designed to include a middle part and two side parts, and the middle part of the cover grid and the two side parts are designed to be detachably connected;

[0013] Step 2: After removing the detachable connection parts on both sides of the cover grid, the joint between the middle part of the cover grid and the grid shaft can be seen. The joint between the middle part of the cover grid and the grid shaft is also designed to be detachable, so that the operator can reach in and remove the middle part of the cover grid;

[0014] Step 3: After the cover grid is completely removed, the flange joints between the two cover grids adjacent to the cover grid and the grid shaft can be seen, and the two adjacent cover grids are removed;

[0015] Step 4: Continue to remove the covering grids on both sides of the removed covering grid in the same manner until all the covering grids are removed.

[0016] According to one aspect of the present invention, the middle part of the cover grille is connected to its two side parts by bolt connection or flange connection.

[0017] According to one aspect of the present invention, the cover grille is connected to the grille rotating shaft by bolt connection or flange connection.

[0018] Due to the above-mentioned solution, the beneficial effects of the present invention are as follows:

[0019] The detachable ship side thrust cover system and disassembly method of the cover grille provided by the present invention have the cover grille and the grille rotating shaft detachably connected by bolts or flanges in terms of structure, the grille rotating shaft and the side thrust tunnel penetration part detachably connected by bolts or flanges, and the side thrust tunnel penetration part and the side thrust tunnel are connected in a watertight manner through the cabin. The cover grille is composed of several pieces, and the shape of the cover grille matches the through-hole of the side thrust tunnel. In this way, when a fault occurs in the ship side thrust and personnel need to enter the tunnel for maintenance or the side thrust cover grille is accidentally damaged or aged and needs to be replaced, the ship side thrust cover does not need to be destructively removed and can be normally disassembled and then replaced and restored; at the same time, since the side thrust tunnel penetration part and the side thrust tunnel are connected in a watertight manner through the cabin, this disassembly will not cause water to enter the cabin. The ship side thrust cover form with a hyperbolic cover grille has the cover grille being smooth and consistent with the hull structure line shape around it when in the closed position, which can better reduce the ship's navigation resistance, save energy and increase efficiency; it can also reduce the hydrodynamic noise and bubbles generated by the bow side thrust pipe tunnel opening (pit), and avoid the adverse effects of noise and bubbles on the working performance of the underwater detection instruments of the scientific research ship to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the first embodiment of the detachable ship side thrust cover system of the cover grille provided by the present invention.

[0022] Figure 2 It is a schematic diagram of the use state of the first embodiment of the detachable ship side thrust cover system of the cover grille provided by the present invention.

[0023] Figure 3 It is a schematic diagram of the watertight connection method through the cabin between the side thrust tunnel penetration part and the side thrust tunnel wall in the first embodiment of the detachable ship side thrust cover system of the cover grille provided by the present invention.

[0024] Figure 4 It is a schematic diagram showing that the covering grid of the first embodiment of the ship side thrust covering system with a detachable covering grid provided by the present invention is disassembled from the grid rotating shaft.

[0025] Figure 5A , Figure 5B , Figure 5C , Figure 5D The second embodiment of the ship thrust cover system with detachable cover grid provided by the present invention is a schematic diagram of various intermediate states in chronological order when the part is disassembled. In order to facilitate observation, other auxiliary structures are partially hidden and omitted in the above schematic diagrams. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1 As shown, the ship thrust cover system with detachable cover grid of the present invention comprises a thrust tunnel 1, a cover grid 2, a grid rotating shaft 3, a thrust tunnel piercing member 4, a hydraulic cylinder 5, a connecting rod mechanism 6 and a control device. In this embodiment, each set of thrust cover is composed of three cover grids 2, and correspondingly, the number of the grid rotating shaft 3 and the thrust tunnel piercing member 4 is also three. Among them, the three side-thrust tunnel penetration parts 4 respectively form a watertight connection with the side-thrust tunnel 1, the three grid plate rotating shafts 3 and the side-thrust tunnel penetration parts 4 form a one-to-one correspondence and are connected by bolts to form a detachable connection, and the three covering grid plates 2 and the grid plate rotating shafts 3 also form a one-to-one correspondence and are connected by bolts to form a detachable connection. After each grid plate rotating shaft 3 passes through the side-thrust tunnel penetration part 4, it is connected to the hydraulic cylinder 5 through a connecting rod mechanism 6. The hydraulic cylinder 5 is fixed on the outside of the side-thrust tunnel wall 1 and is connected to the control device through an oil pipe. Under the control of the control device, the hydraulic cylinder 5 links the three grid plate rotating shafts 3 through the connecting rod mechanism 6 to drive the three covering grid plates 2 to link.

[0028] like Figure 2As shown in the figure, in this embodiment, three capping grid plates 2 together form a side-thrust capping. The capping grid plates 2 match the through-hole shape of the side-thrust tunnel 1. In this way, when the capping grid plates 2 are unfolded, they together form a side-thrust capping and cut off the entire ship's side-thrust tunnel 1, playing a role in protecting the ship's side-thrust in the side-thrust tunnel 1 and reducing the resistance of the ship's navigation. When the capping grid plates 2 are in a parallel state driven by the grid plate rotating shaft 3, they open the entire side-thrust tunnel 1, enabling the ship's side-thrust to operate. The capping grid plates 2 are made into a complex hyperboloid by cold pressing, and have the same curvature as the surrounding ship outer plates, achieving a smooth effect.

[0029] As Figure 3 shown in the figure, in this embodiment, the outer wall of the side-thrust tunnel through-hull fitting 4 is connected to the side-thrust tunnel 1 by welding; there are two seals 7 and two seals 8 provided on the inner wall of the side-thrust tunnel through-hull fitting 4, and the grid plate rotating shaft 3 is installed in the side-thrust tunnel through-hull fitting 4, which can maintain good watertightness. The capping grid plates 2 are connected to the side-thrust tunnel wall 1 through the grid plate rotating shaft 3 and the side-thrust tunnel through-hull fitting 4. In this way, the side-thrust tunnel wall 1 provides support for the grid plate rotating shaft 3, facilitating it to resist the impact of water flow and not being easily damaged. A sealing gasket 11 is provided at the bottom of the capping grid plates 2, which can ensure the watertightness when the capping grid plates 2 are connected to the grid plate rotating shaft 3.

[0030] As Figure 4 shown in the figure, in this embodiment, when a failure occurs in the ship's side-thrust, the detachable nut 9 at the joint of the capping grid plates 2 and the grid plate rotating shaft 3 can be removed, so that the capping grid plates 2 can be removed from the grid plate rotating shaft 3 to facilitate maintenance personnel to enter the side-thrust tunnel 1, and after the repair is completed, the detachable nut 9 at the joint of the capping grid plates 2 and the grid plate rotating shaft 3 can be reinstalled and restored. When the capping grid plates 2 are accidentally damaged or their lifespan is aged, the detachable bolt 10 at the bottom of the grid plate rotating shaft 3 can be removed, so that the capping grid plates 2 and the grid plate rotating shaft 3 can be removed together to replace a new set of capping grid plates 2 and grid plate rotating shaft 3.

[0031] As Figures 5A to 5D shown in the figure, in response to the customer's requirement for the disassembly of the side-thrust capping, the applicant provides a simple and effective solution for gradually disassembling each capping grid plate:

[0032] 1. In this embodiment, each set of side-thrust capping is composed of four capping grid plates. The two sides of the second capping grid plate in each set of side-thrust capping are designed as flange-connected parts, and these two parts can be easily disassembled from the middle part of the second capping grid plate;

[0033] 2. After the flange-connected parts on both sides of the second capping grid plate are removed, the joint between the capping grid plate and the grid plate rotating shaft can be seen. In this embodiment, the joint between the capping grid plate and the grid plate rotating shaft is also flange-connected, and the operator can reach in and operate to disassemble the middle part of the second capping grid plate;

[0034] III. After the second capping grid plate is completely removed, the flange joints between the first and third capping grid plates and the grid plate rotating shaft can also be removed;

[0035] IV. Remove the first capping grid plate;

[0036] V. Remove the third and fourth capping grid plates in the same way;

[0037] VI. Installation method: vice versa.

[0038] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and apply this patent. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the embodiments herein, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A ship side thrust capping system with detachable capping grid, It is characterized in that It includes a side thrust tunnel, a covering grid, a grid rotating shaft, a side thrust tunnel cabin-penetrating member, a hydraulic cylinder, a connecting rod mechanism and a control device. Several of the side thrust tunnel cabin-penetrating members are respectively connected to the side thrust tunnel to form a watertight connection through the cabin. Several of the grid rotating shafts correspond to the side thrust tunnel cabin-penetrating members in a one-to-one correspondence to form a detachable connection. Several of the covering grids correspond to the grid rotating shafts to form a detachable connection. The hydraulic cylinder is fixed to the outside of the side thrust tunnel wall. The side thrust tunnel wall provides support for the grid rotating shaft. The grid rotating shaft is installed in the side thrust tunnel cabin-penetrating member. The covering grid is connected to the A detachable nut is installed at the connection of the grid plate shaft, and the detachable nut connects the bottom of the covering grid plate with the head of the grid plate shaft, and a sealing gasket is installed at the bottom of the covering grid plate; a detachable bolt is installed at the connection between the grid plate shaft and the side thrust tunnel penetration component, and the detachable bolt connects the bottom of the grid plate shaft with the bottom of the side thrust tunnel penetration component. Each set of side thrust cover is designed to be composed of several covering grid plates, and one of the covering grid plates is designed to include a middle part and two side parts, and the middle part of the covering grid plate and its two side parts are designed to be detachably connected.

2. The ship side thrust capping system with detachable capping grid according to claim 1, It is characterized in that The sealing grid plate and the grid plate rotating shaft are connected by bolts or flanges and are detachable.

3. The ship side thrust capping system with detachable capping grid according to claim 1, It is characterized in that The grid plate rotating shaft is connected to the side thrust tunnel cabin penetration member by bolts or flanges and is detachable.

4. A ship side thrust capping system with a detachable capping grid according to any one of claims 1 to 3, It is characterized in that The sealing grid is composed of several pieces, and the several sealing grids together form a side-pushing sealing cover, and the formed side-pushing sealing cover matches the shape of the through hole of the side-pushing tunnel; When the covering grids are unfolded, they together form a thrust cover and cut off the thrust tunnel of the entire ship; when the covering grids are driven by the grid shafts to be parallel, the entire thrust tunnel is opened, allowing the ship to thrust sideways; when the covering grids are in the closed position, they are consistent and smooth with the surrounding hull outer plate lines.

5. The ship side thrust capping system with detachable capping grid according to claim 1, It is characterized in that After each of the grid plate rotating shafts passes through the side thrust tunnel cabin member, it is connected to the hydraulic cylinder through the connecting rod mechanism and is connected to the control device through an oil pipe. Under the control of the control device, the hydraulic cylinder links several of the grid plate rotating shafts through the connecting rod mechanism, thereby driving several of the covering grid plates to link.

6. The ship side thrust capping system with detachable capping grid according to claim 5, It is characterized in that The outer wall of the side thrust tunnel penetration member is connected to the side thrust tunnel by welding, and the inner wall of the side thrust tunnel penetration member is provided with two first seals and two second seals.

7. A method for disassembling a cover grid of a ship thrust cover system, It is characterized in that It includes the following steps: Step 1: Design each set of side thrust covers to be composed of several cover grid plates. Design one of the cover grid plates to include a middle part and two side parts, and design the middle part of this cover grid plate to be detachably connected to its two side parts; Step 2: After removing the detachable connection parts on both sides of this cover grid plate, the joint between the middle part of this cover grid plate and the grid shaft can be seen. Design the joint between the middle part of this cover grid plate and the grid shaft to be detachably connected, and the operator can reach in to operate and remove the middle part of this cover grid plate; Step 3: After completely removing this cover grid plate, the flange joints between the two cover grid plates adjacent to this cover grid plate and the grid shaft can be seen, and remove the two adjacent cover grid plates; Step 4: And so on, continue to remove the cover grid plates on both adjacent sides of the cover grid plates that have been removed until all the cover grid plates are removed.

8. The method for disassembling the cover grid plate of the ship side thrust cover system according to claim 7, characterized in that the connection mode between the middle part of the cover grid plate and its two side parts is bolt connection or flange connection.

9. The method for disassembling the cover grid plate of the ship side thrust cover system according to claim 7, characterized in that the connection mode between the cover grid plate and the grid shaft is bolt connection or flange connection.

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