A method of installing a steering system

CN120606944BActive Publication Date: 2026-09-22GUANGZHOU SHIPYARD INTERNATIONAL LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202511026550.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-07-24
Publication Date
2026-09-22
Estimated Expiration
2045-07-24

AI Technical Summary

Technical Problem

然而,该安装方法不仅会破坏船体结构,增加后续维护工作,而且也加大现场工作的难度,降低安装效率

Benefits of technology

[0036]本申请提供的舵机系统安装方法,包括如下步骤:

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120606944B_ABST
    Figure CN120606944B_ABST
Patent Text Reader

Abstract

The application belongs to the technical field of ship, and discloses a rudder engine system installation method, which comprises the following steps: inverting a rudder engine cabin and making a rudder engine platform above a work area, and making a rudder hole vertical to the work area; hoisting a rudder pole and loading it into the rudder hole; placing the rudder engine on a rest frame above a rudder engine seat and above the rudder pole; moving the rudder pole to the lower end of the rudder pole below the upper rudder twist and above the lower rudder twist, and then installing a rudder blade at the lower end of the rudder pole; hoisting the rudder engine upward and away from the rest frame, placing the rudder engine downward on the rudder engine seat and assembling with the rudder pole after removing the rest frame, optimizing the installation sequence of the rudder engine system, achieving smooth installation of the rudder engine and the rudder pole through space and time dislocation method, and enabling normal press fitting work even in the case of insufficient deck height. In addition, the installation method avoids opening a process hole on the ship structure, avoids damaging the ship structure and strength, and reduces the workload of field installation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of marine technology, specifically to a method for installing a steering gear system. Background Technology

[0002] The steering gear is the core equipment for controlling a ship's course. It works in conjunction with the rudder stock to transmit power to the rudder blades, thus controlling the ship to sail in the prescribed direction. Due to space utilization issues, the steering gear compartment where the steering gear is located is often low in ceiling height and relatively small in space. Furthermore, the steering gear needs to be installed by sliding it down from above the rudder stock, which often results in insufficient lifting space.

[0003] In related technologies, the steering gear is hoisted through a process hole in the hull deck above the steering gear compartment and then fitted onto the rudder stock. However, this installation method not only damages the hull structure and increases subsequent maintenance work, but also increases the difficulty of on-site work and reduces installation efficiency.

[0004] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0005] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a method for installing a servo system that eliminates the need for process holes in the deck above the servo compartment, facilitates installation, and achieves high installation efficiency.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides a method for installing a steering gear system in the steering gear compartment of a ship. The steering gear system includes a steering gear, a rudder stick, and a rudder blade. The steering gear compartment includes a steering gear platform and a steering gear mount. The steering gear platform has an upper rudder knob and a lower rudder knob, and a rudder hole penetrating the upper and lower rudder knobs. The rudder hole allows the rudder stick to pass through. The steering gear mount surrounds the rudder hole and supports the steering gear. The method for installing the steering gear system includes the following steps:

[0008] S100, Preparation stage: The servo compartment is inverted and the servo platform is positioned above the work area, with the servo port perpendicular to the work area;

[0009] S200, Rudder stock insertion hole positioning stage: The rudder stock is lifted and inserted into the rudder hole;

[0010] S300, Servo pre-positioning stage: Place the servo on the support above the servo mount and above the rudder stick;

[0011] S400, Rudder blade assembly stage: Move the rudder stock to a position where the lower end of the rudder stock is below the upper rudder knob and above the lower rudder knob, and then install the rudder blade on the lower end of the rudder stock.

[0012] S500, Servo assembly stage: Lift the servo upwards and remove it from the shelf. After removing the shelf, place the servo downwards on the servo mount and assemble it with the servo stick.

[0013] As an optional solution to the servo system installation method, the preparation stage further includes: installing a first lifting hoist in the servo compartment and above the servo platform; and driving a truck crane to the work area.

[0014] As an optional solution to the servo system installation method, the servo stick insertion hole positioning stage further includes:

[0015] S201. The first end of the rudder is connected to the lifting end of the first hoist, and the second end of the rudder is connected to the lifting end of the truck crane.

[0016] S202. Use the first lifting hoist to lift the first end of the rudder stick, use the truck crane to hold the second end of the rudder stick, and after the rudder stick is in a vertical position, disconnect the truck crane from the rudder stick.

[0017] S203. Using the first lifting hoist, continue to lift the rudder stock upwards, causing the rudder stock to move upwards within the rudder hole until the lower end of the rudder stock is moved above the upper rudder knob.

[0018] As an optional solution to the servo system installation method, the servo stick insertion hole positioning stage further includes:

[0019] S204. A support frame is provided on the upper plane of the lower rudder knob. After the rudder bushing is installed on the rudder stock, the rudder stock is placed on the support frame using the first lifting hoist 200.

[0020] S205. A lifting bracket is installed on the hull plate at the upper rudder twist position, with at least two of the lifting brackets surrounding the rudder stock. Then, the rudder stock is positioned by traction using a steel wire rope in conjunction with the lifting brackets.

[0021] As an optional solution to the servo system installation method, before the servo pre-positioning stage, the method further includes: installing a second lifting hoist in the servo compartment and positioning it below the first lifting hoist and above the servo platform.

[0022] As an optional solution to the servo system installation method, the servo pre-positioning stage further includes:

[0023] S301. Use the first and second lifting clamps to place the servo motor on the servo motor base;

[0024] S302. Use the first and second lifting hoists to lift the servo motor upwards, and place the support frame on the servo motor base;

[0025] S303. Using the first and second lifting clamps, the servo motor is placed downwards on the shelf.

[0026] As an optional solution to the servo system installation method, after step S303 and before step S304, a rubber pad is placed on the bearing surface of the shelf.

[0027] As an optional solution to the servo system installation method, the servo blade assembly stage further includes:

[0028] S401. Use the first lifting hoist to lift the rudder stock upwards until the lower end of the rudder stock is below the upper rudder knob and above the lower rudder knob;

[0029] S402. Install the cover of the rudder bushing onto the rudder stock;

[0030] S403. Use a hydraulic mobile lifting device to move the rudder blade to the work area and lift it up to the position where it is assembled with the rudder stock.

[0031] As an optional solution to the servo system installation method, before step S403, the method further includes: removing the support frame of the lower rudder knob.

[0032] As an optional solution to the servo system installation method, the servo assembly stage further includes:

[0033] S501. Use the first and second lifting hoists to lift the servo motor upwards and remove the support frame;

[0034] S502. Using the first and second lifting clamps, the servo motor is placed downwards onto the servo motor base and installed onto the servo stick.

[0035] The beneficial effects of this application are as follows:

[0036] The servo system installation method provided in this application includes the following steps:

[0037] S100, Preparation phase: The servo compartment is inverted and the servo platform is positioned above the work area, with the servo port perpendicular to the work area;

[0038] S200, Rudder stock insertion and positioning stage: Lift the rudder stock and insert it into the rudder hole;

[0039] S300, Servo pre-positioning stage: Place the servo on the shelf above the servo mount and above the servo stick;

[0040] S400, Rudder blade assembly stage: Move the rudder stock to a position where the lower end of the rudder stock is below the upper rudder knob and above the lower rudder knob, and then install the rudder blade at the lower end of the rudder stock.

[0041] S500, Servo Assembly Stage: Lift the servo upwards and remove it from the shelf. After removing the shelf, place the servo downwards onto the servo mount and assemble it with the servo stick.

[0042] The steering gear system installation method provided in this application achieves smooth installation of the steering gear and rudder post by adjusting and optimizing the installation sequence of the steering gear system and using spatial and temporal staggering methods. Moreover, it can also be used for normal press-fitting operations even when the deck height is insufficient. In addition, this installation method avoids drilling process holes in the hull structure, thus avoiding damage to the hull structure and strength, and also reduces the amount of on-site installation work. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the servo system installed in the servo compartment according to an embodiment of this application.

[0045] Figure 2 This is the first schematic diagram of the first lifting hoist and the lifting rudder of the truck crane provided in the embodiments of this application.

[0046] Figure 3 This is a second schematic diagram of the first lifting hoist and the lifting rudder of the truck crane provided in the embodiments of this application.

[0047] Figure 4 This is the third schematic diagram of the first lifting hoist and the lifting rudder of the truck crane provided in the embodiments of this application.

[0048] Figure 5 This is the fourth schematic diagram of the first lifting clamp hoist and the lifting rudder of the truck crane provided in the embodiments of this application.

[0049] Figure 6 This is a schematic diagram of the first lifting hoist provided in the embodiment of this application lifting the rudder stick upward into the rudder gear compartment to install the bushing.

[0050] Figure 7 This is a schematic diagram of the first lifting hoist provided in the embodiment of this application lowering the rudder rod into the rudder hole.

[0051] Figure 8 This is a schematic diagram of positioning the rudder stock and pre-installing the second lifting hoist according to an embodiment of this application.

[0052] Figure 9 This is the first schematic diagram of the first and second lifting clamp hoists pre-installed with a servo motor, provided in the embodiments of this application.

[0053] Figure 10 This is a second schematic diagram of the first and second lifting clamps provided in the embodiments of this application, with a pre-installed servo motor.

[0054] Figure 11 This is a third schematic diagram of the first and second lifting clamps provided in the embodiments of this application, in conjunction with a pre-installed servo motor.

[0055] Figure 12 This is the fourth schematic diagram of the first and second lifting clamps provided in the embodiments of this application, in conjunction with the pre-installed servo motor.

[0056] Figure 13 This is the first schematic diagram of the first lifting hoist provided in the embodiment of this application lowering the rudder stock to the rudder blade mounting position and installing the rudder blade.

[0057] Figure 14 This is a second schematic diagram of the mounting of the rudder blade provided in the embodiments of this application.

[0058] Figure 15 This is a schematic diagram of the first lifting hoist provided in the embodiment of this application lifting the rudder stick upward to a position that cooperates with the servo motor.

[0059] Figure 16 This is the first schematic diagram of the assembly of the servo motor and rudder stick provided in the embodiments of this application.

[0060] Figure 17 This is a second schematic diagram of the assembly of the servo motor and rudder stick provided in the embodiments of this application.

[0061] Figure label:

[0062] 100. Steering gear compartment; 101. Steering gear platform; 102. Steering gear base; 103. Rudder hole; 104. Upper rudder knob; 105. Lower rudder knob; 106. Deck sealing module; 107. Lifting bracket; 200. First lifting bracket hoist; 300. Truck crane; 400. Second lifting bracket hoist; 500. Wooden plank; 600. Support frame; 700. Shelving unit; 800. Hydraulic mobile lifting device; 1. Steering gear; 2. Rudder stick; 3. Rudder blade; 4. First bushing; 5. Second bushing. Detailed Implementation

[0063] Figure 1 is a schematic structural view of the steering gear system provided in the embodiment of the present application after being installed in the steering engine room 100. As Figure 1 shown, the steering gear system is installed in the steering engine room 100 of a ship, and the steering gear system is core equipment for controlling the navigation direction of the ship. The steering gear system comprises a steering gear 1, a rudder stock 2 and a rudder blade 3; the steering engine room 100 comprises a steering engine platform 101 and a steering engine seat 102; the steering engine platform 101 is provided with an upper rudder pintle 104 and a lower rudder pintle 105, and the steering engine platform 101 is provided with a rudder hole 103 penetrating through the upper rudder pintle 104 and the lower rudder pintle 105; the rudder hole 103 allows the rudder stock 2 to pass through and is used for supporting the rudder stock 2; the steering engine seat 102 is arranged around the circumference of the rudder hole 103 and is used for supporting the steering gear 1; the upper end of the rudder stock 2 extends out of the rudder hole 103 to above the steering engine platform 101 and is assembled and installed with the steering gear 1, and the lower end of the rudder stock 2 is located below the steering engine platform 101 and is installed with the rudder blade 3.

[0064] In addition, the upper rudder pintle 104 and the rudder stock 2 are matched through a rudder system bushing to ensure the stability of the rudder stock 2, and the lower rudder pintle 105 and a rotating shaft on the rudder blade 3 are matched through a rudder system bushing. The rudder system bushing comprises a first bushing 4 and a second bushing 5, the first bushing 4 is installed in the rudder hole 103 of the upper rudder pintle 104, and the second bushing 5 is installed in the rudder hole 103 of the lower rudder pintle 105.

[0065] It should be noted that, Figure 1 the "upper" and "lower" of the orientation shown herein are not "upper" and "lower" in the sailing state of the ship. According to the ship structure, Figure 1 the "upper" herein corresponds to "bow" in the sailing state of the ship, Figure 1 the "lower" herein corresponds to "stern" in the sailing state of the ship. For facilitating understanding of the steering gear system installation method provided by the present application, Figures 2 to 17 the orientation of "upper" and "lower" shown herein is consistent with the orientation of "upper" and "lower" shown in Figure 1 the drawings, next, the steering gear system installation method provided by the present application will be described with the orientation of "upper" and "lower" shown in Figures 1 to 17 the drawings.

[0066] As Figures 2 to 17 shown, the present application provides a steering gear system installation method, which is used for installing a steering gear system into a steering engine room 100 of a ship, and the steering gear system installation method comprises the following steps:

[0067] S100, preparation stage: inverting the steering engine room 100 so that the steering engine platform 101 is located above a working area, and the rudder hole 103 is perpendicular to the working area;

[0068] S200, rudder stock hole entering and positioning stage: hoisting the rudder stock 2 and loading it into the rudder hole 103;

[0069] S300, Servo pre-positioning stage: Place servo 1 on the mounting bracket 700 above servo mount 102 and above rudder stick 2;

[0070] S400, Rudder blade assembly stage: Move the rudder stick 2 so that the lower end of the rudder stick 2 is below the upper rudder knob 104 and above the lower rudder knob 105, and then install the rudder blade 3 on the lower end of the rudder stick 2.

[0071] S500, Servo assembly stage: Lift servo 1 upwards and remove it from the shelf 700. After removing the shelf 700, place servo 1 downwards on the servo mount 102 and assemble it with the rudder stick 2.

[0072] The servo system installation method provided in this application optimizes the hoisting and installation sequence, eliminating the need for additional work and demonstrating the advanced nature of the design optimization. This method is simple, reduces the need for on-site drilling of process holes, significantly reduces workload, and offers relatively inexpensive tooling, resulting in substantial economic benefits.

[0073] like Figure 2 As shown, the preparation phase also includes: S101, the first hoist 200 is installed in the steering gear compartment 100 and located above the steering gear platform 101; the truck crane 300 is driven to the work area. S102, the steering stick 2 is transported from the workshop to the work area and placed flat on the work area. These two steps are not in any particular order.

[0074] In step S101, a lifting bracket 107 is welded to the top of the steering gear compartment 100, and then the first lifting hoist 200 is suspended from the lifting bracket 107. In addition, the boring bar accessory pre-lifting and fixing brackets must be securely welded in advance. The first lifting hoist 200 and the truck crane 300 require operation by qualified personnel.

[0075] In step S102, the rudder stick 2 is placed flat on the wooden board 500 in the work area to position the rudder stick 2 and prevent it from rolling.

[0076] See also Figures 2 to 8As shown, the rudder stock positioning stage also includes: S201, connecting the first end of the rudder stock 2 to the lifting end of the first lifting hoist 200, and connecting the second end of the rudder stock 2 to the lifting end of the truck crane 300. S202, slowly lifting the first end of the rudder stock 2 using the first lifting hoist 200, and supporting the bottom end of the rudder stock 2 with the truck crane 300 until the rudder stock 2 is in a vertical state during the upward lifting process of the first lifting hoist 200, and then disconnecting the truck crane 300 from the rudder stock 2. S203, continuing to lift the rudder stock 2 upward using the first lifting hoist 200, so that the rudder stock 2 moves upward within the rudder hole 103 until the lower end of the rudder stock 2 is above the upper rudder knob 104. S204, setting a support frame 600 on the upper plane of the lower rudder knob 105, and after the rudder bushing is installed on the rudder stock 2, placing the rudder stock 2 on the support frame 600 using the first lifting hoist 200. S205. Install lifting brackets 107 on the hull plating at the upper rudder twist 104. At least two lifting brackets 107 are arranged around the rudder stock 2. Then, use steel wire ropes in conjunction with the lifting brackets 107 to pull and position the rudder stock 2. These five steps are performed in sequence according to the numbers.

[0077] In step S201, after the wire rope of the first hoist 200 passes through the rudder hole 103, the hook at its end is hooked to the lifting ring at the first end of the rudder 2, and the end of the wire rope of the truck crane 300 is connected to the second end of the rudder 2 through the suspension cloth belt.

[0078] In step S202, the first end of the rudder stock 2 is slowly lifted using the first lifting hoist 200, and the truck crane 300 slowly raises it to support the rudder stock 2. As the upper end of the rudder stock 2 moves upward, the truck crane 300 slowly swings in the direction of movement of the rudder stock 2, taking care to avoid collisions. A wooden plank 500 should be placed underneath to prevent the rudder stock 2 from scraping against the work area. When the rudder stock 2 is about to enter the rudder hole 103, observe carefully. The lifting point of the truck crane 300 should be slowly adjusted according to the force on the rudder stock 2, and the first lifting hoist 200 should be slowly raised, taking care not to damage the rudder stock 2. Personnel should maintain proper positioning to prevent injury.

[0079] In step S203, the rudder stock 2 is in a vertical position, and the first lifting hoist 200 is slowly raised to the upper plane of the upper rudder knob 104. After the rudder stock 2 reaches a position approximately 500mm above the upper plane of the upper rudder knob 104, the lifting hoist 200 needs to be protected with nylon straps or steel wire ropes to prevent the rudder stock 2 from slipping.

[0080] In step S204, a support frame 600 is placed on the upper surface of the lower rudder knob 105. The support frame 600 is bolted to the platform of the lower rudder knob 105. After the rudder bushing is frozen and installed, the rudder stock 2 is slowly placed onto the support frame 600 at the lower rudder knob 105. The support frame 600 can be made of steel.

[0081] In step S205, two 5-ton lifting weights 107 are installed at position 0 of the hull hull to assist in the installation and fixation of the rudder stock 2 with the wire rope, preventing the rudder stock 2 from swaying. Then, the first lifting weight hoist 200 is slowly released. In addition, after step S205, the deck sealing module 106 is placed into the rudder gear base 102 and centered.

[0082] Continue as Figure 8 As shown, before the servo pre-positioning stage, the process also includes: installing the second lifting hoist 400 in the servo compartment 100 and positioning it below the first lifting hoist 200 and above the servo platform 101.

[0083] like Figures 9 to 10 As shown, the servo pre-positioning stage also includes: S301, placing the servo 1 on the servo mount 102 using the first hoist 200 and the second hoist 400. S302, lifting the servo 1 upwards using the first hoist 200 and the second hoist 400, and placing the support frame 700 on the servo mount 102. S303, lowering the servo 1 downwards onto the support frame 700 using the first hoist 200 and the second hoist 400. These three steps are performed sequentially.

[0084] In step S301, the first hoist 200 and the second hoist 400 are used to position the servo motor 1 onto the servo motor base 102, taking care to avoid scraping or bumping it. Furthermore, during the positioning of the servo motor 1, personnel should pay attention to their position to prevent objects from falling on them due to slippage from the hoists.

[0085] In step S302, the first hoist 200 and the second hoist 400 are used to raise the servo motor 1 by 800mm. During the raising process, the hoists should be raised slowly, and personnel should pay attention to their position to prevent objects from falling due to the hoist chain slippage. After the servo motor 1 is raised, the support frame 700 is placed in, and the support frame 700 is leveled. The weight of the servo motor 1 is slowly reduced onto the support frame 700. The hoist inside the servo motor 1 compartment is not removed to prevent tipping. In addition, it should be noted that when the servo motor 1 is placed on the support frame 700, the servo motor 1 must be level and centered on the center line of the servo system to provide conditions for raising the servo stick 2 later.

[0086] After step S303 and before step S304, the method further includes: placing a rubber pad on the bearing surface of the shelf 700. This can prevent the servo motor 1 from directly contacting the shelf 700 and scratching the servo motor 1, and can also use the rubber pad to level the servo motor 1 and ensure the stability of the servo motor 1.

[0087] It should be noted that the upper and lower feet of the mounting bracket 700 must be constrained with the servo mount 102 and the servo 1 chassis using the number "7".

[0088] like Figures 11 to 15As shown, the rudder blade assembly stage also includes: S401, using the first lifting hoist 200 to lift the rudder stock 2 upwards until its lower end is below the upper rudder knob 104 and above the lower rudder knob 105. S402, removing the support frame 600 of the lower rudder knob 105 and installing the pressure cap of the rudder bushing onto the rudder stock 2. S403, using the hydraulic moving lifting device 800 to move the rudder blade 3 to the work area and lift it to the position for assembly with the rudder stock 2.

[0089] In step S401, the first hoist 200 is used to raise the rudder stock 2 to the upper rudder knob 104. The hoist should be pulled slowly during the raising process. Pay attention to the gaps between the rudder stock 2 and the rudder mechanism 1, as well as the gaps between the rudder stock 2 and the rudder bushing. Do not operate blindly. Personnel should pay attention to their position and must not place their hands inside the rudder stock 2 and rudder hole 103 to avoid injury. Furthermore, when the rudder stock 2 passes through the deck sealing module 106, care must be taken not to damage the rubber ring of the deck sealing module 106. After the rudder stock 2 reaches its position, the lifting personnel must use nylon straps or steel wire ropes for double protection of the rudder stock 2 to prevent the hoist chain from slipping and causing it to fall.

[0090] In step S403, the hydraulic mobile lifting device 800 can be a stern-mounted hydraulic platform. Using this platform, the rudder blade 3 is slowly and steadily installed. Operators of the hydraulic platform must be skilled and professional. Blind operation is strictly prohibited. The safety studs on the hydraulic platform must be unscrewed and grounded every 50mm of lifting by the hydraulic cylinder to prevent cylinder pressure leakage. Furthermore, during operation and when lowering the rudder stick 2, operators must follow the unified command of the crane operator and maintain synchronized movements. The rudder stick 2 and rudder blade 3 should be aligned with the fitting marks and press-fitted according to the rudder system installation process.

[0091] Using the first lifting hoist 200, lower the rudder stick 2 to the position where it engages with the upper rudder knob 104. During the lowering process, the first lifting hoist 200 should be loosened slowly. Pay attention to the gap between the rudder stick 2 and the servo motor 1, as well as the gap between the rudder stick 2 and the rudder hole 103 at the upper rudder knob 104. Personnel should pay attention to their position and must not place their hands inside the rudder stick 2 and the rudder hole 103 to avoid injury. In addition, ensure that the inner hole of the rudder blade 3 is clean.

[0092] like Figures 16 to 17 As shown, the servo assembly stage also includes: S501, using the first hoist 200 and the second hoist 400 to lift the servo 1 upwards and remove the support frame 700. S502, using the first hoist 200 and the second hoist 400 to place the servo 1 downwards onto the servo mount 102 and install it onto the rudder stick 2.

[0093] In step S501, the first hoist 200 and the second hoist 400 are used to slowly pull up the device. After the servo motor 1 is completely separated from the shelf 700, the shelf 700 is removed.

[0094] In step S502, the first lifting hoist 200 and the second lifting hoist 400 are used to slowly lower the servo motor 1 downwards, installing the servo motor 1 onto the rudder stick 2. Pay attention to the gap between the rudder stick 2 and the servo motor 1. Personnel should be mindful of their positioning and avoid placing their hands inside the rudder stick 2 and rudder hole 103 to prevent injury. Subsequent pressing is performed according to the rudder system installation process. During this process, it is necessary to check the cleanliness of the rudder hole 103.

[0095] It should be noted that both the first lifting hoist 200 and the second lifting hoist 400 can be equipped with manual hoists. The advantages of manual hoists are that they do not require external power, have a simple structure that is easy to maintain, are small in size and light in weight and easy to carry, and are flexible in operation, highly safe, and inexpensive. They are suitable for a variety of lifting scenarios without power or with light loads.

[0096] The steering gear system installation method provided in this application achieves smooth installation of the steering gear 1 and rudder stick 2 by adjusting and optimizing the installation sequence of the steering gear system and using spatial and temporal staggering methods. Moreover, it can also be used for normal press-fitting operations even when the deck height is insufficient. In addition, this installation method avoids drilling process holes in the hull structure, thus avoiding damage to the hull structure and strength, and also reduces the amount of on-site installation work.

[0097] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A method for installing a steering gear system, for installing the steering gear system in the steering gear compartment (100) of a ship, characterized in that, The servo system includes a servo (1), a rudder stick (2), and a rudder blade (3). The servo housing (100) includes a servo platform (101) and a servo mount (102). The servo platform (101) has an upper rudder knob (104) and a lower rudder knob (105). The servo platform (101) has a rudder hole (103) that passes through the upper rudder knob (104) and the lower rudder knob (105). The rudder hole (103) is for the rudder stick (2) to pass through. The servo mount (102) is arranged around the rudder hole (103) and is used to support the servo (1). The installation method of the servo system includes the following steps: S100, Preparation stage: The servo compartment (100) is inverted and the servo platform (101) is positioned above the work area, and the servo hole (103) is perpendicular to the work area; The preparation phase also includes: installing the first lifting hoist (200) on the servo gear compartment (100) and above the servo gear platform (101); and driving the truck crane (300) to the work area; S200, Rudder stock insertion hole positioning stage: The rudder stock (2) is lifted and inserted into the rudder hole (103); S201. The first end of the rudder (2) is connected to the lifting end of the first lifting hoist (200), and the second end of the rudder (2) is connected to the lifting end of the truck crane (300). S202. Use the first lifting hoist (200) to lift the first end of the rudder (2), use the truck crane (300) to hold the second end of the rudder (2), and after the rudder (2) is in a vertical state, disconnect the connection between the truck crane (300) and the rudder (2). S203. Using the first lifting hoist (200), continue to lift the rudder (2) upward, so that the rudder (2) moves upward in the rudder hole (103) until the lower end of the rudder (2) is moved above the upper rudder knob (104); S300, Servo pre-positioning stage: Place the servo (1) on the shelf (700) above the servo mount (102) and above the rudder stick (2); S400, Rudder blade assembly stage: Move the rudder (2) so that the lower end of the rudder (2) is below the upper rudder knob (104) and above the lower rudder knob (105), and then install the rudder blade (3) on the lower end of the rudder (2). S500, Servo assembly stage: Lift the servo (1) upward and away from the shelf (700), remove the shelf (700), place the servo (1) downward on the servo mount (102) and assemble it with the rudder stick (2); Prior to the pre-positioning stage of the servo, the process further includes: installing a second clamping hoist (400) in the servo compartment (100) and positioning it below the first clamping hoist (200) and above the servo platform (101).

2. The servo system installation method according to claim 1, characterized in that, The rudder post insertion hole positioning stage also includes: S204. A support frame (600) is provided on the upper plane of the lower rudder knob (105). After the rudder bushing is installed on the rudder stock (2), the rudder stock (2) is placed on the support frame (600) using the first lifting hoist (200). S205. A lifting bracket (107) is installed on the hull plate at the upper rudder knob (104), with at least two of the lifting brackets (107) surrounding the rudder stock (2), and then the rudder stock (2) is positioned by traction using a steel wire rope in conjunction with the lifting brackets (107).

3. The servo system installation method according to claim 1, characterized in that, The pre-positioning phase of the servo motor also includes: S301. The servo motor (1) is placed on the servo motor base (102) using the first clamping hoist (200) and the second clamping hoist (400). S302. The servo motor (1) is lifted upward using the first lifting clamp (200) and the second lifting clamp (400), and the shelf (700) is placed on the servo motor base (102). S303. Using the first hoist (200) and the second hoist (400), the servo motor (1) is placed downward on the shelf (700).

4. The servo system installation method according to claim 3, characterized in that, After step S303 and before the start of the rudder assembly stage, a rubber pad is placed on the bearing surface of the shelf (700).

5. The servo system installation method according to claim 2, characterized in that, The rudder assembly stage also includes: S401. Using the first lifting hoist (200), lift the rudder (2) upwards until the lower end of the rudder (2) is below the upper rudder knob (104) and above the lower rudder knob (105). S402. Install the cover of the rudder bushing onto the rudder stock (2); S403. Using a hydraulic mobile lifting device (800), the rudder blade (3) is moved to the work area and raised to the position where it is assembled with the rudder stick (2).

6. The servo system installation method according to claim 5, characterized in that, Before step S403, the method further includes: removing the support frame (600) of the lower rudder knob (105).

7. The servo system installation method according to claim 4, characterized in that, The servo assembly stage also includes: S501. Use the first lifting hoist (200) and the second lifting hoist (400) to lift the servo motor (1) upwards and remove the shelf (700); S502. Using the first lifting clamp (200) and the second lifting clamp (400), the servo motor (1) is placed downward on the servo motor base (102) and installed on the rudder stick (2).

Citation Information

Patent Citations

  • Underwater installation method of ship rudder system

    CN101254821A

  • Method for cabin entry installation of steering engine

    CN110877672A