Steering oar propeller installation process and ship

Abstract

The invention provides a steering oar thruster installation process and a ship, and relates to the field of ship manufacturing, the steering oar thruster installation process comprises the steps that a thruster is transported to the position below the tail of the ship, and hoisting is started through a lifting appliance; horizontally hoisting the propeller, hoisting the top of the propeller after the propeller reaches a specified position, and keeping the height of the rotating center point of the tail unchanged; the top lifting rope is tightened, and meanwhile, the tail lifting rope is loosened, so that the propeller is gradually vertical; and after the propeller is vertical and the position is checked to be correct, the propeller is fixed. The steering oar propeller provided by the invention is simple and practical in installation process, the installation of the propeller can be efficiently and quickly completed, and the ship building and installation cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of shipbuilding, and in particular relates to a rudder propeller installation process and a ship. Background Art

[0002] Currently, the installation method of thrusters on existing ships is complicated, time-consuming and labor-intensive, and requires additional installation of lifting equipment and continuous debugging during the lifting process. Since the thrusters are very heavy, weighing dozens of tons, debugging is very troublesome and time-consuming.

[0003] Therefore, how to provide a rudder propeller propeller installation process and a ship has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0004] The purpose of the invention is to provide a rudder propeller installation process and a ship.

[0005] According to a first aspect of the present invention, a rudder propeller installation process is provided, comprising:

[0006] Step S1: transport the propeller to the bottom of the stern of the ship and start hoisting using a hoisting device;

[0007] Step S2: hoist the propeller horizontally. After reaching the designated position, lift the top of the propeller so that the height of the rotation center point of the tail remains unchanged;

[0008] Step S3: tighten the top suspension rope and loosen the tail suspension rope at the same time, so that the propeller is gradually vertical;

[0009] Step S4: After the propeller is vertical, the position is checked and then fixed.

[0010] Optionally, a lifting hole is provided at the tail of the thruster, a lifting ear is provided at the top, and a lifting rope is provided on the lifting device, one of the lifting ropes is connected to the lifting hole, and the other lifting rope is connected to the lifting ear. The two lifting ropes are bolted to the thruster to achieve lifting.

[0011] Optionally, there are two lifting holes, and a reinforcing I-beam or channel steel beam is arranged between the two lifting holes.

[0012] Optionally, there are two lifting ears, and a reinforcing I-beam or channel steel beam is arranged between the two lifting ears.

[0013] Optionally, the hoist is a cabin crane; before hoisting, a hoisting code is pre-installed on the hull, and the hoisting code is used to install the hoist.

[0014] Optionally, a process hole is opened in advance at the position of the deck just above the thruster after installation, and the cabin crane can be used to complete the lifting.

[0015] Optionally, in step S2, the horizontal hoisting of the propeller requires that the propeller be kept horizontal during the hoisting process, and the angle between the hoisting rope and the ground is not less than 75°.

[0016] Optionally, a fixed lifting lug is provided on the well enclosure seat of the hull, and the lifting rope at the tail is connected to the lifting hole through the fixed lifting lug.

[0017] Optionally, in step S2, the process stops when the angle between the center line of the well enclosure and the center line of the thruster is 50°.

[0018] According to a second aspect of the present invention, there is provided a ship, on which a propeller is installed, and the propeller is installed using the rudder propeller installation process described in any one of the first aspects.

[0019] The beneficial effects brought by the present invention are as follows:

[0020] It can be seen from the above scheme that the embodiment of the present invention provides a rudder propeller propeller installation process and a ship, which has the following beneficial effects: the rudder propeller propeller installation process provided by the present application is simple and practical, and can complete the installation of the propeller efficiently and quickly, saving the cost of ship construction and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view of a rudder propeller provided according to an embodiment;

[0022] Figure 2 A top view of a rudder propeller provided according to an embodiment;

[0023] Figure 3 A schematic diagram of a first position of a rudder propeller installation process provided according to an embodiment;

[0024] Figure 4 A schematic diagram of a second position of a rudder propeller installation process provided according to an embodiment;

[0025] Figure 5 A schematic diagram of a third position of a rudder propeller propeller installation process provided according to an embodiment;

[0026] Figure 6 A schematic diagram of a fourth position of a rudder propeller propeller installation process provided according to an embodiment;

[0027] Figure 7 A fifth position schematic diagram of a rudder propeller propeller installation process provided according to an embodiment;

[0028] Figure 8 A schematic diagram of a rudder propeller propeller installation process after final fixed installation according to an embodiment;

[0029] Fig. 9 It is a front view of the installation of three rudder propellers provided according to the embodiment;

[0030] Fig.10 The figure is a top view of the installation of three rudder propellers provided according to an embodiment.

[0031] Description of reference numerals:

[0032] 100-thruster, 1-lifting hole, 2-lifting eye, 3-lifting rope, 4-fixed lifting eye, 5-well base, 6-rib plate, 7-reinforced I-beam or channel steel beam, 8-rotation center point of the tail. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all 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.

[0034] According to the first aspect of the present invention, a rudder propeller thruster installation process is provided. The thrusters generally weigh tens of tons, and some thrusters weigh 47 tons or even heavier, so they need to be hoisted and installed. If you are not careful, all your efforts may be wasted. If they are not installed properly, they need to be reinstalled.

[0035] like Figure 1 and 2 As shown, a lifting hole 1 is provided at the tail of the propeller 100, and a lifting lug 2 is provided at the top of the propeller 100. A lifting rope 3 is provided on the lifting device, one of which is connected to the lifting hole 1, and the other is connected to the lifting lug 2. The two lifting ropes 3 are bolted to the propeller 100 to achieve lifting. There are two lifting holes 1, which are respectively provided on the ribs at the tail of the propeller, and a reinforcing I-beam or channel steel beam is provided between the two lifting holes for reinforcement; there are two lifting lugs 1, and a reinforcing I-beam or channel steel beam is provided between the two lifting lugs for reinforcement and reinforcement. A fixed lifting lug 4 is provided on the well seat 5 of the hull, and the lifting rope 3 at the tail is connected to the lifting hole 1 through the fixed lifting lug 4.

[0036] In some specific embodiments, the lifting device may be a cabin crane; before lifting, a lifting code is pre-installed on the hull, and the lifting code is used to install the lifting device.

[0037] Specifically, a process hole is opened in advance at the position of the deck just above the thruster 100 after installation, so that the engine room crane can be used to complete the lifting, making full use of the tools on the ship, saving the ship construction cost, and eliminating the need to use other lifting tools.

[0038] The present embodiment provides a rudder propeller installation process, which requires the installation of the wire lighting and the propeller rudder propeller device to be completed at the stern assembly stage. The specific steps of hoisting the propeller 100 from below the stern hull are as follows:

[0039] Step S1: transport the propeller to the bottom of the stern of the ship and start hoisting using a hoisting device;

[0040] Step S2: hoist the propeller horizontally. After reaching the designated position, lift the top of the propeller so that the height of the rotation center point 8 of the tail remains unchanged. Figure 3 to Figure 4 As shown, this is the lifting process for this step.

[0041] In step S2, the horizontal lifting of the propeller requires that the propeller be kept horizontal during the lifting process, and the angle between the lifting rope 3 and the ground is not less than 75°;

[0042] In step S2, after reaching the designated position, the tail rope 3 and the top rope 3 are parallel to each other and perpendicular to the ground. At this time, the top rope 3 is tightened to lift the top of the thruster, and the tail rope 3 remains stationary;

[0043] Make the angle between the center line of the wellbore base and the center line of the thruster 50°.

[0044] Step S3: tighten the top suspension rope 3 and loosen the tail suspension rope 3 to gradually verticalize the propeller 100; make the angle between the center line of the well enclosure and the center line of the propeller gradually change from 50° to 37°, then to 33°, and finally to 0°. Figure 5 to Figure 6 Then Figure 7 As shown, this is the lifting process for this step.

[0045] Step S4: After the propeller is vertical and the position is checked to be correct, the propeller 100 is hoisted upwards and finally fixed on the hull. Figure 8 shown.

[0046] like Fig. 9 and Fig.10 The figure shows that three fully rotating rudder propellers are installed through the above process.

[0047] According to a second aspect of the present invention, there is provided a ship, on which a propeller is installed, and the propeller is installed using the rudder propeller installation process described in the first aspect.

[0048] In summary, the rudder propeller installation process provided in the present application is simple and practical, and can complete the installation of the propeller efficiently and quickly, especially after a process hole is opened in advance on the deck directly above the propeller 100 after installation, the engine room crane can be used to complete the lifting, making full use of the tools on the ship, saving the cost of ship construction, and eliminating the need to use other lifting equipment.

[0049] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A rudder propeller installation process, characterized in that: The steps include: Step S1: transport the propeller to the bottom of the stern of the ship and start hoisting using a hoisting device; Step S2: hoist the propeller horizontally. After reaching the designated position, lift the top of the propeller so that the height of the rotation center point of the tail remains unchanged; Step S3: tighten the top suspension rope and loosen the tail suspension rope at the same time, so that the propeller is gradually vertical; Step S4: After the propeller is vertical, the position is checked and then fixed.

2. The rudder propeller installation process according to claim 1 is characterized in that: The tail of the thruster is provided with a lifting hole, the top is provided with a lifting ear, and the lifting device is provided with a lifting rope, one of which is connected to the lifting hole, and the other is connected to the lifting ear. The two lifting ropes are bolted to the thruster to achieve lifting.

3. The rudder propeller installation process according to claim 2 is characterized in that: There are two lifting holes, and a reinforcing I-beam or channel steel beam is arranged between the two lifting holes.

4. The rudder propeller installation process according to claim 3 is characterized in that: There are two lifting ears, and a reinforcing I-beam or channel steel beam is arranged between the two lifting ears.

5. The rudder propeller installation process according to claim 4 is characterized in that: The lifting device is a cabin crane; before lifting, a lifting code is pre-installed on the hull, and the lifting code is used to install the lifting device.

6. The rudder propeller installation process according to claim 5, characterized in that: A process hole is opened in advance at the position of the deck just above the thruster after installation, so that the engine room crane can be used to complete the lifting.

7. The rudder propeller installation process according to claim 1, characterized in that: In step S2, the horizontal hoisting of the propeller requires that the propeller be kept horizontal during the hoisting process, and the angle between the hoisting rope and the ground is not less than 75°.

8. The rudder propeller installation process according to claim 6, characterized in that: A fixed lifting lug is arranged on the well enclosure seat of the hull, and the lifting rope at the tail is connected with the lifting hole through the fixed lifting lug.

9. The rudder propeller installation process according to claim 8, characterized in that: In step S2, after reaching the designated position, the tail hoisting rope and the top hoisting rope are parallel to each other and perpendicular to the ground. At this time, the top hoisting rope is tightened to lift the top of the thruster, and the tail hoisting rope remains stationary; the angle between the center line of the well enclosure seat and the center line of the thruster is 50°.

10. A ship, characterized in that: The ship is equipped with a propeller, and the propeller is installed using the rudder propeller installation process described in any one of claims 1-9.

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