Ship side thrust device and mounting method thereof

Abstract

The invention discloses a ship side thruster and an installation method thereof.The ship side thruster comprises a side thruster body which comprises a barrel, a rotating rod is rotatably arranged in the barrel, propeller blades are arranged at one end of the rotating rod, the other end of the rotating rod is connected with a first gearbox, and one side of the first gearbox is connected with a first input shaft; the base is used for being connected to a ship and provided with a diesel engine, the output end of the diesel engine is connected with a second gearbox, the output end of the second gearbox is connected with a universal shaft, and one end of the universal shaft is connected with the first input shaft; the two guide pipes are arranged on the side pushing main body, the two ends of the cylinder body are welded with the corresponding guide pipes into a whole, and connecting ribs are arranged on the periphery of the cylinder body. According to the ship side thruster of the structure, deformation of cylinder welding is reduced through the connecting ribs, power is transmitted to the first input shaft through the diesel engine, the second gearbox and the cardan shaft, independent operation of a ship power grid is not depended on, and therefore the ship side thruster deals with the complex ship use environment.

Description

Technical Field

[0001] The present invention relates to the technical field of ship engineering, and particularly relates to a ship side thruster and an installation method thereof. Background Art

[0002] A ship side thruster is a device that assists a ship in turning. Currently, the widely used ship side thruster is a ducted side thruster. The ducted side thruster is provided with a duct at the bow of the ship. The duct penetrates the hull in the ship width direction. The central axis of the duct is perpendicular to the longitudinal section of the hull, and the side thruster is arranged inside the duct. Among them, during the process of welding the duct to the ship, the inner wall of the duct is prone to partial deformation due to welding, which affects the use of the side thruster. In addition, the power output of the existing side thruster generally uses an electric motor to drive. On the one hand, the output power of the electric motor is limited, and the electric motor depends on the main power grid of the ship for power supply. When there are faults, power outages or insufficient power supply in the ship's power system, the normal operation of the side thruster will be seriously affected and even unable to work, thus greatly reducing the safety and maneuverability of the ship during critical operation stages. On the other hand, on some ships with large power demands, the operation of the electric motor will increase the load pressure on the ship's power grid, which may lead to a decrease in the stability of the power grid and affect the normal operation of other important equipment. Summary of the Invention

[0003] In view of the above deficiencies, the present invention proposes a ship side thruster and an installation method thereof. The ship side thruster not only ensures the coaxiality through the alignment welding of the duct and the cylinder body, and avoids the welding deformation of the cylinder body through the connecting ribs, but also transmits the output power to the first input shaft through the diesel engine, the second gearbox and the universal shaft, operates independently without relying on the ship's power grid, and can provide a large output power for ship side thrust, so as to cope with complex ship use environments.

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

[0005] A ship side thruster, comprising: a side thruster main body, including a cylinder body, the cylinder body is used for being fixed to the side of the ship, the cylinder body is arranged perpendicular to the ship's hull, a rotating rod is rotatably arranged inside the cylinder body, a propeller blade is arranged at one end of the rotating rod, a first gearbox is connected to the other end of the rotating rod, and a first input shaft is connected to one side of the first gearbox; a base, used for connecting to the ship, a diesel engine is arranged on the base, the output end of the diesel engine is connected to a second gearbox, the output end of the second gearbox is connected to a universal shaft, and one end of the universal shaft is connected to the first input shaft; two ducts are arranged on the side thruster main body, chamfers are arranged at both ends of the cylinder body, the chamfers face the end faces of the ducts and define a welding gap, and connecting ribs are arranged on the outer periphery of the cylinder body, and the connecting ribs are used for welding to the ship's hull.

[0006] Furthermore, a coupling is provided at the output end of the diesel engine, and a mounting seat is provided at the input end of the second gearbox. The mounting seat is connected to the coupling through a first bolt assembly, and the rotation axis of the input end of the second gearbox is coaxially arranged with the rotation axis of the coupling.

[0007] Furthermore, the diesel engine includes a first mounting bracket, and the second gearbox includes a second mounting bracket. The first mounting bracket is connected to the base through a second bolt assembly, and the second mounting bracket is connected to the base through a third bolt assembly. Adjusting gaskets are provided between the first mounting bracket and the base, and between the second mounting bracket and the base.

[0008] Furthermore, a first flange is provided at one end of the second gearbox away from the diesel engine. The rotation axis of the output end of the second gearbox is collinear with the central axis of the first flange. One end of the first input shaft is coaxially provided with a second flange. The central axis of the first flange and the central axis of the second flange are located in the same plane, and the universal shaft is connected between the first flange and the second flange.

[0009] Furthermore, a gravity oil tank is further included. The gravity oil tank is provided above the cylinder body. An input pipe and a first output pipe are respectively connected to both sides of the gravity oil tank. Both the input pipe and the first output pipe are connected to the first gearbox, and the oil in the gravity oil tank flows into the first gearbox through the input pipe under the action of gravity.

[0010] Furthermore, the first gearbox is connected to a second output pipe. One end of the second output pipe is connected to a hand pump and a storage tank. The input pipe is provided with a normally open first valve body, and the second output pipe is provided with a normally closed second valve body.

[0011] Furthermore, the height of the rotation axis of the propeller blade from the horizontal plane is H, and the height of the gravity oil tank relative to the propeller blade is 1.3H to 1.4H.

[0012] Furthermore, the cylinder body is provided with a bracket. The bracket is provided with a plurality of pipe joints at intervals along the same straight line. The input pipe and the first output pipe pass through the corresponding pipe joints.

[0013] The present invention also discloses an installation method for a ship side thruster device, including using the ship side thruster device of any one of the above technical solutions, and including the following steps:

[0014] S1. Install the side thruster main body: First, hoist the side thruster main body so that the rotation axis of the propeller blade is perpendicular to the center line of the hull. Then, align the chamfers at both ends of the cylinder body with the corresponding ducts respectively and weld them, so that the cylinder body and the two ducts are arranged on the same axis. Finally, weld the connecting ribs arranged on the outer circumference of the cylinder body to the ship.

[0015] S2. Install the diesel engine and the second gearbox: Adjust the installation height of the diesel engine and the second gearbox. Then, coaxially connect the output end of the diesel engine and the input end of the second gearbox through a flange. Finally, fix the diesel engine and the second gearbox to the base.

[0016] S3. Install the universal shaft: Hoist the base, and then use two centering tools to adjust the position of the base so that the axis of the first input shaft and the axis of the output end of the second gearbox are coplanar. Then, fix the base to the ship. Finally, remove the two centering tools and install a universal shaft between the first input shaft and the output end of the second gearbox.

[0017] Compared with the existing technology, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the output power is transmitted to the first input shaft through the diesel engine, the second gearbox and the universal shaft, which operates independently without relying on the ship's power grid and can provide a large output power for the ship's side thruster, so as to cope with the complex ship use environment.

[0019] 2. The present invention uses adjusting shims to adjust the height of the diesel engine and the second gearbox, which is beneficial to the coaxial setting of the output end of the diesel engine and the input end of the second gearbox, ensuring the transmission of power.

[0020] 3. In the present invention, the oil liquid in the gravity oil tank enters the first gearbox through the input pipe, so as to lubricate the gears inside the first gearbox with the oil liquid, and part of the oil liquid is discharged through the first output pipe and the second output pipe.

[0021] 4. The present invention also discloses an installation method for a ship side thruster device, which standardizes the installation steps of applying a diesel engine to ship side thrusters, solves the problems that need to be solved during the installation of applying a diesel engine to ship side thrusters, including the welding and installation problems of the cylinder body and the ship structure, the connection problems of the diesel engine and the second gearbox, and the centering problems of the universal shaft, etc., ensuring the driving stability after the installation of the diesel engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 is a schematic structural diagram of an embodiment of a ship side thruster device of the present invention;

[0024] Figure 2 is Figure 1 Schematic structural view of the cardan shaft of the embodiment;

[0025] Figure 3 is Figure 1 Schematic assembly view of the cylinder body and the side thrust main body;

[0026] Figure 4 is Figure 1 Schematic assembly view of the base of

[0027] Figure 5 is Figure 1 Schematic assembly view of the cylinder body of

[0028] Figure 6 is Figure 1 Schematic assembly view of the cylinder body of

[0029] In the figure: cylinder body 100, bracket 101, pipe joint 102, connecting rib 103, propeller blade 110, first input shaft 120, second flange 121, conduit 130, base 200, diesel engine 210, coupling 211, first mounting bracket 212, second bolt assembly 213, adjusting shim 214, second gearbox 220, mounting seat 221, first bolt assembly 222, first flange 223, cardan shaft 230, control module 240, gravity fuel tank 300, input pipe 310, first output pipe 320, second output pipe 330, second valve body 331, hand pump 340. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, and understandings such as "above", "below", "within", etc. include the base number. If there are descriptions of the terms "first" and "second", they are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] See Figures 1 to 6 , a ship side thrust device, comprising: a side thrust main body, including a cylinder body 100, the cylinder body 100 is used to be fixed on the side of the ship, the cylinder body 100 is vertically arranged relative to the hull of the ship, a rotating rod is rotatably arranged inside the cylinder body 100, a propeller blade 110 is arranged at one end of the rotating rod, a first gear box is connected to the other end of the rotating rod, and a first input shaft 120 is connected to one side of the first gear box; a base 200, used to be connected to the ship, a diesel engine 210 is arranged on the base 200, the output end of the diesel engine 210 is connected to a second gear box 220, the output end of the second gear box 220 is connected to a universal shaft 230, and one end of the universal shaft 230 is connected to the first input shaft 120; two ducts 130 are arranged on the side thrust main body, chamfers are arranged at both ends of the cylinder body 100, the chamfers face the end faces of the ducts 130 and define a welding gap, and connecting ribs 103 are arranged on the outer periphery of the cylinder body 100, and the connecting ribs 103 are used to be welded to the hull of the ship.

[0035] The ship side thrust device according to the embodiment of the present invention has at least the following beneficial effects: When in use, the output power of the diesel engine 210 is transmitted to the first input shaft 120 through the second gearbox 220 and the universal shaft 230. The first input shaft 120 drives the rotating rod to rotate through the first gearbox, thereby driving the propeller blade 110 to rotate to generate a side thrust for pushing the ship to move laterally. Through the above structure, the side thrust main body can operate independently without relying on the main power grid of the ship, thereby reducing the load pressure on the ship's power grid by the motor in the past, and can still ensure the normal operation of the side thrust main body when the ship's power system fails. In addition, the diesel engine 210 has good torque output characteristics under medium and low speed conditions, can meet the demand for large thrust of the side thrust main body in complex maneuvering scenarios, and is thus applicable to large ships and special operation ships. Among them, the duct 130 is butt-welded to the cylinder body 100, which can not only protect the propeller blade 110, but also facilitate the formation of an integrated fairwater, so as to facilitate the side thrust main body to generate lateral force better. Among them, the chamfer is convenient for forming a weld with good connection strength between the duct 130 and the cylinder body 100. The setting of the connecting rib 103, on the one hand, enhances the structural strength of the cylinder body 100, and on the other hand, can facilitate the cylinder body 100 to be welded to the ship by using the connecting rib 103, thereby reducing the deformation of the outer peripheral wall welding of the cylinder body 100.

[0036] It can be understood that the second gearbox 220 adopts a forward and reverse clutch, such as the GWH6066 type gearbox, which is a clutch reduction gear with forward, neutral and reverse functions. The gearbox is hydraulically operated, and different friction clutches are driven by a control valve in the gearbox to engage or disengage the output gear, so that the gearbox has the functions of speed reduction and commutation, which is beneficial to improving the maneuverability of the ship. It can be understood that the diesel engine 210 includes a speed actuator for controlling the throttle size, and the speed actuator is electrically connected to a control module 240, so as to control the output power of the diesel engine 210 by adjusting the fuel injection amount of the diesel engine 210, and further change the power supplied to the side thrust main body.

[0037] See Figure 1 Furthermore, a coupling 211 is arranged at the output end of the diesel engine 210, and a mounting seat 221 is arranged at the input end of the second gearbox 220. The mounting seat 221 is connected to the coupling 211 through a first bolt assembly 222. The rotation axis of the input end of the second gearbox 220 is coaxially arranged with the rotation axis of the coupling 211, so as to better transmit the output power of the diesel engine 210 to the second gearbox 220 by using the coupling 211. It can be understood that the first bolt assembly 222 includes a locking bolt. The mounting seat 221 and the coupling 211 are provided with threaded holes on the same axis, and the locking bolt connects the two threaded holes to fix the cooperation between the mounting seat 221 and the coupling 211.

[0038] See Figure 1And Figure 4 Further, the diesel engine 210 includes a first mounting bracket 212, the second gearbox 220 includes a second mounting bracket, the first mounting bracket 212 is connected to the base 200 through a second bolt assembly 213, the second mounting bracket is connected to the base 200 through a third bolt assembly, and an adjusting shim 214 is provided between the first mounting bracket 212 and the base 200 and between the second mounting bracket and the base 200. Specifically, the second bolt assembly 213 includes a stud, through holes are provided in the first mounting bracket 212 and the base 200, both ends of the stud pass through the corresponding through holes respectively, and nuts are locked on the stud, thereby completing the cooperation between the first mounting bracket 212 and the base 200. Among them, by increasing or decreasing the number of adjusting shims 214, it is beneficial to change the installation height of the diesel engine 210 and the second gearbox 220, so that the output end of the diesel engine 210 and the input end of the second gearbox 220 are coaxially arranged, improving the power transmission of the diesel engine 210. It can be understood that the installation method of the second mounting bracket is similar to that of the first mounting bracket 212, and will not be elaborated here.

[0039] See Figures 1 to 3 Further, a first flange 223 is provided at one end of the second gearbox 220 away from the diesel engine 210. The rotation axis of the output end of the second gearbox 220 is coaxial with the central axis of the first flange 223. One end of the first input shaft 120 is coaxially provided with a second flange 121. The central axis of the first flange 223 and the central axis of the second flange 121 are located in the same plane, and the universal shaft 230 is connected between the first flange 223 and the second flange 121. Specifically, the settings of the first flange 223 and the second flange 121 are beneficial to the detachable connection of the universal shaft 230 between the second gearbox 220 and the first input shaft 120, and by making the axes of the first flange and the second flange 121 coplanar, the requirement that the universal shaft 230 needs to be installed in the same plane is indirectly achieved.

[0040] See Figure 1 And Figure 6 Further, a gravity oil tank 300 is further included. The gravity oil tank 300 is arranged above the cylinder body 100. An input pipe 310 and a first output pipe 320 are respectively connected to both sides of the gravity oil tank 300. The input pipe 310 and the first output pipe 320 are both communicated with the first gearbox. The oil in the gravity oil tank 300 flows into the first gearbox through the input pipe 310 under the action of gravity, so that the gears in the first gearbox can drive part of the oil to splash during operation, thereby realizing the lubrication effect of the gears in the first gearbox, which is beneficial to improving the running smoothness of the first gearbox, and part of the oil overflows through the first output pipe 320 to flow out naturally.

[0041] See Figure 1 And Figure 6, Further, the first gearbox is connected to a second output pipe 330. One end of the second output pipe 330 is connected to a hand pump 340 and a storage tank. The input pipe 310 is provided with a normally open first valve body, and the second output pipe 330 is provided with a normally closed second valve body 331. Specifically, the hand pump 340 is a plunger pump driven by human power, so as to facilitate the active discharge of the oil in the first gearbox through the second output pipe 330. It can be understood that the first valve body and the second valve body 331 can adopt a switch valve that can be manually opened or closed, or an electromagnetic valve controlled by the control module 240, so as to facilitate people to control the on-off of the input pipe 310 or the second output pipe 330 as needed.

[0042] See Figure 1 , Further, the height of the rotation axis of the propeller blade 110 from the horizontal plane is H, and the height of the gravity fuel tank 300 relative to the propeller blade 110 is 1.3H to 1.4H, so as to facilitate the oil in the gravity fuel tank 300 to flow into the input pipe 310 under the action of gravity.

[0043] See Figure 6 , Further, the cylinder 100 is provided with a bracket 101. The bracket 101 is provided with a plurality of pipe joints 102 at intervals along the same straight line. The input pipe 310 and the first output pipe 320 are passed through the corresponding pipe joints 102. Specifically, the bracket 101 is welded to the outer periphery of the cylinder 100, and the pipe joints 102 are fixed to the bracket 101, so as to use the pipe joints 102 to separate the installation positions of the input pipe 310 and the first output pipe 320, which is beneficial to improving the stability of the pipeline layout of the gravity fuel tank 300.

[0044] See Figures 1 to 6 , The present invention also discloses an installation method of a ship side thruster device, which includes using the ship side thruster device of any of the above technical solutions, and includes the following steps:

[0045] S1. Install the side thruster main body: First, hoist the side thruster main body so that the rotation axis of the propeller blade 110 is perpendicular to the center line of the hull. Then, align the chamfers at both ends of the cylinder 100 and weld them to the corresponding conduits 130 respectively, so that the cylinder 100 and the two conduits 130 are arranged on the same axis. Finally, weld the connecting ribs 103 provided on the outer periphery of the cylinder 100 to the ship;

[0046] S2. Install the diesel engine 210 and the second gearbox 220: Adjust the installation height of the diesel engine 210 and the second gearbox 220, then coaxially connect the output end of the diesel engine 210 and the input end of the second gearbox 220 through a flange, and finally fix the diesel engine 210 and the second gearbox 220 to the base 200;

[0047] S3. Install the universal shaft 230: Lift and install the base 200, then use two centering tools to adjust the position of the base 200 so that the axis of the first input shaft 120 and the axis of the output end of the second gearbox 220 are coplanar. Then fix the base 200 to the ship. Finally, remove the two centering tools and install the universal shaft 230 between the first input shaft 120 and the output end of the second gearbox 220.

[0048] Through the above steps, the present application provides the power for the ship's side thruster through the diesel engine 210, realizing the independent operation of the ship's side thruster without relying on the power grid, and being able to reduce energy and cost consumption compared with the traditional motor drive. In addition, this method standardizes the installation steps of the diesel engine 210 applied to the ship's side thruster, solves the problems that need to be solved during the installation of the diesel engine 210 applied to the ship's side thruster, including the welding and installation problems between the cylinder body 100 and the hull structure, the connection problems between the diesel engine 210 and the second gearbox 220, and the centering problems of the universal shaft 230, etc., ensuring the stability of the diesel engine 210 drive.

[0049] Among them, in step 1, it is necessary to first detect the wall thicknesses of the cylinder body 100 and the conduit 130, and detect the gap between the propeller blade 110 and the inner wall of the cylinder body 100. The theoretical value of the gap should be about 10 mm. Then, by using the cross scribing method for the cylinder body 100 and the conduit 130, the corresponding center points are found, and corresponding cross marking lines are drawn on the end faces of the cylinder body 100 and the conduit 130, which is beneficial to the subsequent alignment and splicing of the conduit 130 and the cylinder body 100 by using the marking lines. Finally, check the chamfer of the cylinder body 100 to align it with the conduit 130, then adjust the gap between the cylinder body 100 and the conduit 130, and continuously spot weld at intervals of 60 degrees in the clockwise direction. The arc length of the welding is 40 mm. Finally, re-measure the actual value of the gap between the propeller blade 110 and the inner wall of the cylinder body 100, which should be between 8 mm and 10 mm.

[0050] In step 3, the centering tool includes a sleeve. The sleeve can be sleeved on the output shaft of the second gearbox 220 or the first input shaft 120. The two sleeves have mutually parallel side faces. By measuring whether the two side faces are coplanar, the coplanarity of the first input shaft 120 and the output shaft is indirectly measured. After step 3 is completed, a 0.5-mm shim 214 is used to detect the mating clearance of each component. If the shim 214 cannot be installed internally, the assembly requirement is met.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0052] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A ship side thruster device, characterized in that, Comprising: A lateral thruster main body, including a cylinder body (100) which is used to be fixed on the side of a ship. The cylinder body (100) is vertically arranged relative to the hull of the ship. A rotating rod is rotatably arranged inside the cylinder body (100). One end of the rotating rod is provided with a propeller blade (110), and the other end of the rotating rod is connected to a first gearbox. One side of the first gearbox is connected to a first input shaft (120); A pedestal (200) which is used to be connected to the ship. The pedestal (200) is provided with a diesel engine (210). The output end of the diesel engine (210) is connected to a second gearbox (220). The output end of the second gearbox (220) is connected to a universal shaft (230). One end of the universal shaft (230) is connected to the first input shaft (120); Two ducts (130) which are arranged on the lateral thruster main body. Chamfers are arranged at both ends of the cylinder body (100). The chamfers face the end faces of the ducts (130) and define a welding gap. Connecting ribs (103) are arranged on the outer periphery of the cylinder body (100), and the connecting ribs (103) are used to be welded to the hull of the ship.

2. The ship side thrust device according to claim 1, characterized in that, A coupling (211) is arranged at the output end of the diesel engine (210). A mounting seat (221) is arranged at the input end of the second gearbox (220). The mounting seat (221) is connected to the coupling (211) through a first bolt assembly (222). The rotational axis of the input end of the second gearbox (220) is coaxially arranged with the rotational axis of the coupling (211).

3. The ship side thrust device according to claim 1, characterized in that, The diesel engine (210) includes a first mounting bracket (212), and the second gearbox (220) includes a second mounting bracket. The first mounting bracket (212) is connected to the pedestal (200) through a second bolt assembly (213). The second mounting bracket is connected to the pedestal (200) through a third bolt assembly. Adjusting shims (214) are arranged between the first mounting bracket (212) and the pedestal (200), and between the second mounting bracket and the pedestal (200).

4. A ship side thrust device according to claim 1, characterized in that, A first flange (223) is arranged at the end of the second gearbox (220) far from the diesel engine (210). The rotational axis of the output end of the second gearbox (220) is collinear with the central axis of the first flange (223). A second flange (121) is coaxially arranged at one end of the first input shaft (120). The central axis of the first flange (223) and the central axis of the second flange (121) are in the same plane. The universal shaft (230) is connected between the first flange (223) and the second flange (121).

5. The ship side thrust device according to claim 1, characterized in that, It further includes a gravity oil tank (300). The gravity oil tank (300) is disposed above the cylinder body (100). An input pipe (310) and a first output pipe (320) are respectively connected to two sides of the gravity oil tank (300). Both the input pipe (310) and the first output pipe (320) are communicated with the first gear box. The oil liquid in the gravity oil tank (300) flows into the first gear box through the input pipe (310) under the action of gravity.

6. The ship side thrust device according to claim 5, characterized in that, The first gear box is connected with a second output pipe (330). One end of the second output pipe (330) is connected with a hand pump (340) and a storage tank. A normally open first valve body (311) is arranged on the input pipe (310), and a normally closed second valve body (331) is arranged on the second output pipe (330).

7. A ship side thrust device according to claim 5, characterized in that, The height of the rotation axis of the propeller blade (110) from the horizontal plane is H, and the height of the gravity oil tank (300) relative to the propeller blade is 1.3H to 1.4H.

8. A ship side thrust device according to claim 5, characterized in that, The cylinder body (100) is provided with a bracket (101). A plurality of pipe joints (102) are arranged at intervals along the same straight line on the bracket (101). The input pipe (310) and the first output pipe (320) are inserted through the corresponding pipe joints (102).

9. An installation method of a ship side thrust device, including using the ship side thrust device according to any one of claims 1 to 8, characterized in that, It includes the following steps: S1. Install the side thruster main body: First, hoist the side thruster main body so that the rotation axis of the propeller blade (110) is perpendicular to the midline of the hull. Then, align the chamfers at both ends of the cylinder body (100) and weld them to the corresponding ducts (130) respectively, so that the cylinder body (100) and the two ducts (130) are arranged on the same axis. Finally, weld the connecting ribs (103) arranged on the outer periphery of the cylinder body (100) to the ship. S2. Install the diesel engine (210) and the second gear box (220): Adjust the installation height of the diesel engine (210) and the second gear box (220). Then, coaxially connect the output end of the diesel engine (210) and the input end of the second gear box (220) through a flange. Finally, fix the diesel engine (210) and the second gear box (220) to the base (200). S3. Install the universal shaft: Hoist the base (200), and then use two centering tools to adjust the position of the base (200) so that the axis of the first input shaft (120) and the axis of the output end of the second gear box (220) are coplanar. Then, fix the base (200) to the ship. Finally, remove the two centering tools and install a universal shaft (230) between the first input shaft (120) and the output end of the second gear box (220).

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