Servo motor installation and methods to improve servo motor installation accuracy

Abstract

This application provides a method for installing a servo motor and improving its installation accuracy, comprising at least the following steps: setting a base that matches the servo motor according to the dimensions of its bottom; determining a crosshair reference line for installing the servo motor base; installing the servo motor base according to the crosshair reference line; installing the rudder blade and rudder bearing on the base; assembling the rudder blade, rudder handle, and rudder stock according to the zero-point reference position; adjusting the assembly positions of the rudder blade, rudder handle, and rudder stock so that the deviation between the assembly positions of the rudder blade, rudder handle, and rudder stock and the reference position is within a preset range. This method enables simple, fast, and effective installation, improves servo motor installation accuracy, reduces or eliminates the need for reinforcement work on the reverse side of the servo motor base, thereby achieving the goal of saving time and effort.

Description

Technical Field

[0001] This invention relates to the field of servo motor installation, and more specifically, to a servo motor installation method and a method for improving servo motor installation accuracy. Background Technology

[0002] The rudder system is a very important system on a ship. It mainly consists of rudder blades, rudder stock, rudder bearings, rudder handles, and rudder gear. It is used to control the direction of the ship's navigation. Therefore, the installation of the entire rudder system needs to be strictly controlled to ensure the safety of the ship's subsequent navigation.

[0003] The current method is limited by structural precision and the machining accuracy of the rudder stock, rudder blade, and rudder handle. This often results in the rudder gear base not being installed precisely in the designed position, typically with a deviation of 30-40mm. This causes the base stiffeners to not align with the reinforcement on the reverse side of the structure, necessitating additional reinforcement work. Because this reinforcement involves the empty space on the reverse side of the rudder gear base, construction space is limited, making the work difficult. This work often takes 15-20 days to complete, and in severe cases, it can take up to a month. This significantly impacts the rudder system installation schedule, leading to delays in subsequent commissioning and affecting the overall construction cycle. Furthermore, this approach cannot allow for pre-installation of the rudder gear base, meaning the rudder gear cannot be installed before the ship is launched. This necessitates welding additional rudder system fixing devices to prevent rotation during launch, resulting in additional work and material waste.

[0004] In summary, there is a lack of a simple, fast, and effective method in the current ship rudder system installation process to pre-install the rudder gear base, improve the installation accuracy of the rudder gear, reduce or eliminate the need for reinforcement work on the reverse side of the rudder gear base, thereby achieving the goal of saving time and effort. Summary of the Invention

[0005] This application provides a method for installing servo motors and improving the installation accuracy of servo motors. It enables simple, fast and effective installation, improves the installation accuracy of servo motors, and reduces or eliminates the need for reinforcement work on the back of the servo motor base, thereby achieving the goal of saving time and effort.

[0006] This application provides a method for improving the installation accuracy of a servo motor. The servo motor includes a base, rudder blade, shaft-rudder system, and rudder bearing. The method includes at least the following steps: setting a base that matches the dimensions of the servo motor's bottom; determining a crosshair reference line for installing the servo motor base; installing the servo motor base according to the crosshair reference line; installing the rudder blade and the rudder bearing onto the base; assembling the rudder blade, rudder handle, and rudder stock according to a zero-point reference position; and adjusting the assembly positions of the rudder blade, rudder handle, and rudder stock so that the deviation between the assembly positions of the rudder blade, rudder handle, and rudder stock and the reference position is within a preset range.

[0007] In some optional embodiments, the step of setting a base that matches the servo motor according to the size of the servo motor bottom includes: designing a base that matches the size of the servo motor foot; determining transverse and longitudinal stiffeners according to the force on the base, wherein the position of the stiffeners is not less than a preset range from the minimum distance between the base bolts after installation; and setting reverse reinforcement according to the position of the longitudinal and transverse stiffeners of the base.

[0008] In some alternative embodiments, the step of determining the crosshair reference line for installing the rudder mount includes determining the center of the rudder system based on the marking lines around the rudder sleeve or the rudder hole; and drawing crosshairs on the hull along the length of the ship and perpendicular to the length of the ship based on the center of the rudder system.

[0009] In some optional embodiments, the step of installing the servo base according to the cross reference line includes: confirming that the positioning deviation of the base relative to the cross reference line does not exceed 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement.

[0010] In some optional embodiments, the step of assembling the rudder blade, rudder handle, and rudder stock according to the zero-point reference position includes: confirming and pressing the rudder handle to the zero-point reference position; confirming and pressing the rudder handle to the zero-point reference position with the rudder blade in the zero-point reference position, aligning the rudder handle and rudder stock with the zero-point reference position; checking the deviation between the center of the fore and aft forks of the rudder handle and the ship's length direction marking line on the deck surface, confirming that the deviation does not exceed 3mm, otherwise, rotating the rudder handle to make the deviation less than 3mm; and reconfirming the zero-point reference positions of the rudder stock and rudder handle.

[0011] In some optional embodiments, the dimensions of the base panel are confirmed, wherein the dimensions of each side of the base panel are at least 15mm larger than the required dimensions; the transverse and longitudinal stiffening plates are confirmed according to the positions of the base bolt holes and the base installation position, such that the distance between the stiffening plates and the hexagonal distance after the base bolts are installed is greater than or equal to 15mm; the reinforcement on the reverse side of the structure is determined according to the finally determined positions of the base stiffening plates; the base is manufactured according to the design drawings, and the base bolt holes are not drilled during the base manufacturing stage; the reinforcement on the reverse side of the base installation position is prefabricated according to the design drawings.

[0012] In some optional embodiments, the center of the rudder hole is found based on the marking lines on the rudder sleeve (forward, backward, left, and right) or the existing rudder hole; according to the hull structure, cross reference lines are drawn on the hull structure along the length of the ship and perpendicular to the length of the ship through the center of the rudder hole; and the center punch marks are made on the drawn cross reference lines.

[0013] In some optional embodiments, before the base is installed, the reverse structural reinforcement of the base is determined and reference marks are determined; the base stiffeners are aligned and the corresponding reinforcements are placed in place; the distance between the base and the cross reference line is measured to ensure that the deviation does not exceed 5mm; otherwise, the base position is adjusted until the deviation is less than 5mm and the deviation between the base stiffeners and the reverse reinforcement is less than 0.5 times the thickness of the reinforcement plate; the base welding work is completed.

[0014] In some optional embodiments, the rudder blade is rotated to its zero-point reference position; the rudder handle is hoisted and installed onto the rudder stock, and the rudder handle is rotated to align the zero-point reference positions of the rudder handle and the rudder stock; a scale is placed on the rudder handle at a position away from the center of the rudder stock towards the bow fork, and the center of the fork is confirmed according to the scale; a plumb bob is used to check the deviation between the center position of the fork and the deck surface marking line, recorded as d1, confirming that the plumb bob is recorded as a positive value to the left of the deck surface marking line, and confirming that the plumb bob is recorded as a negative value to the right of the deck surface marking line; the distance between the center of the stern fork and the ground marking line is measured and recorded as d2; the average value of d1 and d2 is calculated, d The average of d1 and d2 is the overall parallel deviation d of the rudder stick relative to the center line of the rudder system. The overall parallel deviation d is eliminated after the rudder stock is in its natural state at the center of the rudder system after the ship is launched. Subtract the overall deviation d from d1 and d2 respectively. The absolute value of the obtained value is the circumferential deviation D of the rudder stick. The circumferential deviation D is required to be no more than 3mm. If the circumferential deviation D is confirmed to be no more than 3mm, the press-fitting of the rudder stick can be completed directly. If the circumferential deviation D exceeds 3mm, the rudder stick needs to be rotated to adjust the deviation to be less than 3mm. The zero-point reference position of the rudder stock and rudder stick should be re-established, and the press-fitting of the rudder stick should be completed.

[0015] In some optional embodiments, the steps of adjusting the assembly positions of the rudder blade, rudder handle, and rudder stock so that the deviation between the assembly positions of the rudder blade, rudder handle, and rudder stock and the reference position is within a preset range include: maintaining the rudder blade at the zero-point reference position; adjusting the operation of the servo motor according to the zero-point reference position; setting the base bolt holes on the base according to the position of the servo motor; completing the servo motor gasket fitting or epoxy casting work; and installing the base bolts to complete the final installation of the servo motor.

[0016] This application has the following technical advantages over the prior art:

[0017] This application provides a method for installing a servo motor and improving its installation accuracy, comprising at least the following steps: setting a base that matches the servo motor according to the dimensions of its bottom; determining a crosshair reference line for installing the servo motor base; installing the servo motor base according to the crosshair reference line; installing the rudder blade and rudder bearing on the base; assembling the rudder blade, rudder handle, and rudder stock according to the zero-point reference position; adjusting the assembly positions of the rudder blade, rudder handle, and rudder stock so that the deviation between the assembly positions of the rudder blade, rudder handle, and rudder stock and the reference position is within a preset range. This method enables simple, fast, and effective installation, improves servo motor installation accuracy, reduces or eliminates the need for reinforcement work on the reverse side of the servo motor base, thereby achieving the goal of saving time and effort. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a flowchart illustrating the method for pre-installing a ship steering gear base and improving the installation accuracy of the steering gear according to the present invention.

[0020] Figure 2 This is a schematic diagram of the steering gear arrangement for the method of pre-installing the ship steering gear base and improving the installation accuracy of the steering gear according to the present invention;

[0021] Figure 3 This is a schematic diagram of the crosshairs on the deck surface in the method for pre-installing the ship steering gear base and improving the installation accuracy of the steering gear according to the present invention;

[0022] Figure 4 This is a schematic diagram of the plumb bob checking deviation in the method for pre-installing the ship steering gear base and improving the installation accuracy of the steering gear according to the present invention.

[0023] in, Figures 1-4 The correspondence between the reference numerals and the component names in the attached drawings is as follows:

[0024] 1-Base; 2-Steering gear; 3-Steering bearing; 4-Steering stick; 5-Steering handle; 7-Cross reference line; 8-Plumb bob. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0027] The rudder system is a very important system on a ship. It mainly consists of rudder blades, rudder stock, rudder bearings, rudder handle, and rudder gear. It is used to control the direction of the ship's navigation. Therefore, the installation of the entire rudder system needs to be strictly controlled to ensure the safety of the ship's subsequent navigation.

[0028] The current method is limited by structural precision and the machining accuracy of the rudder stock 4, rudder blade, and rudder handle 5. This often results in the rudder base 1 not being installed precisely in the designed position, typically with a deviation of 30-40mm. Consequently, the base stiffeners cannot be aligned with the structural reinforcement on the reverse side, necessitating additional reinforcement work. This reinforcement work involves the empty space on the reverse side of base 1, limiting construction space and increasing difficulty. This work often takes 15-20 days to complete, and in severe cases, it can take up to a month. This significantly impacts the rudder system installation schedule, delaying subsequent commissioning and affecting the overall construction cycle. Furthermore, this method cannot allow for the early installation of base 1, preventing the installation of rudder 2 before launching. This necessitates welding additional rudder system fixing devices to prevent rotation during launch, resulting in additional work and material waste.

[0029] In summary, there is a lack of a simple, fast, and effective method in the current ship rudder system installation process to pre-install the base 1, improve the installation accuracy of the rudder gear 2, reduce or eliminate the need for reinforcement work on the reverse side of the base 1, thereby achieving the goal of saving time and effort.

[0030] This application provides a method for installing a servo motor and improving its installation accuracy, comprising at least the following steps: setting a base 1 that matches the dimensions of the bottom of the servo motor 2; determining a crosshair reference line 6 for installing the base 1; installing the base 1 according to the crosshair reference line 6; installing the rudder blade and the rudder bearing 3 onto the base 1; assembling the rudder blade, rudder stick 5, and rudder stile 4 according to the zero-point reference position; and adjusting the assembly positions of the rudder blade, rudder stick 5, and rudder stile 4 so that the deviation between the assembly positions of the rudder blade, rudder stick 5, and rudder stile 4 and the reference position is within a preset range.

[0031] In some optional embodiments, the step of setting a base that matches the size of the servo motor 2 according to the size of the bottom of the servo motor 2 includes: designing a base 1 that matches the size of the servo motor 2's feet; determining the transverse and longitudinal stiffeners according to the force on the base 1, wherein the position of the stiffeners is not less than a preset range from the minimum distance between the base bolts after installation; and setting reverse reinforcement according to the position of the longitudinal and transverse stiffeners of the base 1.

[0032] Specifically, a base 1 is designed to match the dimensions of the servo motor 2's feet; transverse and longitudinal stiffeners are determined based on the stress on the base 1, and the minimum distance between the position of the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is provided based on the positions of the longitudinal and transverse stiffeners on the base 1; a cross reference line 6 is determined for installing the servo motor base 1; the servo motor base 1 is installed according to the cross reference line 6; the rudder blade and the rudder bearing 3 are installed on the base 1; the rudder blade, rudder handle 5, and rudder stock 4 are assembled according to the zero-point reference position; the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 are adjusted so that the deviation between the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 and the reference position is within a preset range. The assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 are adjusted so that the deviation between the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 and the reference position is within 15mm. Confirm the dimensions of the base 1 panel, ensuring that each side dimension of the base 1 panel is at least 15mm larger than the required dimensions; based on the location of the bolt holes and the installation position of the base 1, confirm the transverse and longitudinal stiffening plates, ensuring that the distance between the stiffening plates and the hexagonal distance after the anchor bolts are installed is greater than or equal to 15mm; based on the final determined stiffening plate locations of the base 1, determine the reinforcement on the reverse side of the structure; manufacture the base 1 according to the design drawings, without drilling the anchor bolt holes during the base 1 manufacturing stage; and prepare the reinforcement on the reverse side of the base 1 at the installation position in advance according to the design drawings.

[0033] In some alternative embodiments, the step of determining the crosshair reference line 6 for mounting the rudder mount 1 includes determining the center of the rudder system based on the marking lines around the rudder sleeve or the rudder hole; and drawing crosshairs on the hull along the length of the ship and perpendicular to the length of the ship based on the center of the rudder system.

[0034] Specifically, a base 1 matching the dimensions of the rudder 2's base is designed; transverse and longitudinal stiffeners are determined based on the force applied to the base 1, and the minimum distance between the position of the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is provided based on the positions of the longitudinal and transverse stiffeners of the base 1; the center of the rudder system is determined based on the marking lines or rudder holes around the rudder sleeve; cross lines are drawn on the hull along the ship's length and perpendicular to the ship's length based on the center of the rudder system; the rudder base 1 is installed based on the cross reference line 6; the rudder blade and the rudder bearing 3 are installed on the base 1; the rudder blade, rudder handle 5, and rudder stock 4 are assembled based on the zero-point reference position; the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 are adjusted so that the deviation between the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 and the reference position is within a preset range.

[0035] In some alternative embodiments, the step of installing the servo base 1 according to the cross reference line 6 includes: confirming that the positioning deviation of the base 1 relative to the cross reference line 6 does not exceed 5mm based on the alignment of the lateral and longitudinal stiffeners with the reverse reinforcement.

[0036] Specifically, a base 1 matching the dimensions of the servo motor 2's base is designed; transverse and longitudinal stiffeners are determined based on the stress on the base 1, and the minimum distance between the position of the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is set according to the positions of the longitudinal and transverse stiffeners on the base 1; the center of the rudder system is determined according to the marking lines or rudder holes around the rudder sleeve; the positioning deviation of the base 1 relative to the cross reference line 6 is confirmed to be no more than 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement; the servo motor base 1 is installed according to the cross reference line 6; the rudder blade and the rudder bearing 3 are installed on the base 1; the rudder blade, rudder handle 5, and rudder stock 4 are assembled according to the zero-point reference position; the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 are adjusted so that the deviation between the assembly positions of the rudder blade, rudder handle 5, and rudder stock 4 and the reference position is within a preset range.

[0037] In some optional embodiments, the steps of assembling the rudder blade, rudder stick 5, and rudder stock 4 according to the zero-point reference position include: confirming and pressing the rudder stick 5 to the zero-point reference position; confirming and pressing the rudder stick 5 to the zero-point reference position with the rudder blade in the zero-point reference position, aligning the rudder stick 5 and rudder stock 4 with the zero-point reference position; checking the deviation between the center of the fore and aft forks of the rudder stick 5 and the ship's length direction marking line on the deck surface, confirming that the deviation does not exceed 3mm, otherwise, rotating the rudder stick 5 to make the deviation less than 3mm; and reconfirming the zero-point reference positions of the rudder stock 4 and rudder stick 5.

[0038] Specifically, a base 1 is designed to match the dimensions of the servo motor 2's feet; transverse and longitudinal stiffeners are determined based on the stress on the base 1, and the minimum distance between the position of the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is provided based on the positions of the longitudinal and transverse stiffeners on the base 1; the center of the rudder system is determined based on the marking lines or rudder holes around the rudder sleeve; the positioning deviation of the base 1 relative to the cross reference line 6 is confirmed to be no more than 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement; the servo motor base 1 is installed according to the cross reference line 6; and the rudder blade and the rudder bearing 3 are installed on... The base 1 is used to confirm and press-fit the zero-point reference position of the rudder shank 5. With the rudder blade in the zero-point reference position, the zero-point reference position of the rudder shank 5 is confirmed and pressed-fitted, and the rudder shank 5 and rudder stock 4 are aligned with the zero-point reference position. The deviation between the center of the forks of the rudder shank 5 and the ship's length direction marking line on the deck surface is checked, and it is confirmed that the deviation does not exceed 3mm. Otherwise, the rudder shank 5 is rotated to make the deviation less than 3mm. The zero-point reference positions of the rudder stock and rudder shank 5 are reconfirmed. The assembly positions of the rudder blade, rudder shank 5 and rudder stock 4 are adjusted so that the deviation between the assembly positions of the rudder blade, rudder shank 5 and rudder stock 4 and the reference position is within the preset range.

[0039] In some optional embodiments, the dimensions of the base 1 panel are confirmed, with each side dimension of the base 1 panel being at least 15mm larger than the required dimensions; based on the location of the base bolt holes and the base installation position, the transverse and longitudinal stiffening plates are confirmed, such that the distance between the stiffening plates and the hexagonal distance after the base bolts are installed is greater than or equal to 15mm; based on the finally determined base stiffening plate positions, the reinforcement on the reverse side of the structure is determined; the base is manufactured according to the design drawings, and the base bolt holes are not drilled during the base manufacturing stage; the reinforcement on the reverse side of the base installation position is prefabricated according to the design drawings.

[0040] Specifically, a base 1 matching the dimensions of the servo motor 2's feet is designed; transverse and longitudinal stiffeners are determined based on the stress on the base 1, and the minimum distance between the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is set according to the positions of the longitudinal and transverse stiffeners of the base 1; further, the dimensions of the base 1 panel are confirmed, and the dimensions of each side of the base 1 panel are at least 15mm larger than the required dimensions; transverse and longitudinal stiffeners are confirmed based on the positions of the base bolt holes and the base installation position, ensuring that the distance between the stiffeners and the hexagonal distance after the base bolts are installed is greater than or equal to 15mm; the reverse reinforcement of the structure is determined based on the finally determined positions of the base stiffeners; the base 1 is manufactured according to the design drawings, and the base bolt holes are not drilled during the manufacturing stage of the base 1; the reverse reinforcement of the base 1 installation position is prefabricated according to the design drawings. Determine the rudder system center based on the marking lines or rudder holes around the rudder sleeve; confirm that the positioning deviation of the base 1 relative to the cross reference line 6 does not exceed 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement; install the rudder base 1 according to the cross reference line 6; install the rudder blade and the rudder bearing 3 on the base 1, confirm and press-fit the zero-point reference position of the rudder shank 5; with the rudder blade in the zero-point reference position, confirm and press-fit the zero-point reference position of the rudder shank 5, aligning the rudder shank 5 and the rudder stock 4 with the zero-point reference position; check the deviation between the center of the forks of the rudder shank 5 and the marking line in the ship's length direction on the deck surface, confirming that the deviation does not exceed 3mm; otherwise, rotate the rudder shank 5 to make the deviation less than 3mm; reconfirm the zero-point reference position of the rudder stock and rudder shank 5; adjust the assembly position of the rudder blade, rudder shank 5, and rudder stock 4 so that the deviation between the assembly position of the rudder blade, rudder shank 5, and rudder stock 4 and the reference position is within the preset range.

[0041] In some optional embodiments, the center of the rudder hole is found based on the marking lines on the rudder sleeve (forward, backward, left, and right) or the existing rudder hole; according to the hull structure, cross reference lines are drawn on the hull structure along the length direction and perpendicular to the length direction through the center of the rudder hole; and a punch mark is made on the drawn cross reference lines 7.

[0042] Specifically, a base 1 matching the dimensions of the servo motor 2's feet is designed; transverse and longitudinal stiffeners are determined based on the stress on the base 1, ensuring that the minimum distance between the stiffeners and the base bolts after installation is not less than a preset range; reverse reinforcement is provided based on the positions of the longitudinal and transverse stiffeners on the base 1; further, the dimensions of the base 1 panel are confirmed, with each side dimension of the base 1 panel being at least 15mm larger than the required dimensions; transverse and longitudinal stiffeners are confirmed based on the positions of the base bolt holes and the installation position of the base 1, ensuring that the distance between the stiffeners and the hexagonal distance from the base bolts after installation is greater than or equal to 15mm; and the reverse reinforcement of the structure is determined based on the final determined stiffener positions of the base 1. The base 1 is manufactured according to the design drawings, without drilling the base bolt holes during the base 1 manufacturing stage; and the reverse reinforcement of the base 1's installation position is prefabricated according to the design drawings. Determine the rudder system center based on the marking lines or rudder holes around the rudder sleeve; confirm that the positioning deviation of the base 1 relative to the cross reference line 7 does not exceed 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement; install the rudder base 1 according to the cross reference line 7; install the rudder blade and the rudder bearing 3 on the base 1, confirm and press-fit the zero-point reference position of the rudder shank 5; with the rudder blade in the zero-point reference position, confirm and press-fit the zero-point reference position of the rudder shank 5, aligning the rudder shank 5 and the rudder stock 4 with the zero-point reference position; check the deviation between the center of the forks of the rudder shank 5 and the marking line in the ship's length direction on the deck surface, confirming that the deviation does not exceed 3mm; otherwise, rotate the rudder shank 5 to make the deviation less than 3mm; reconfirm the zero-point reference position of the rudder stock and rudder shank 5; adjust the assembly position of the rudder blade, rudder shank 5, and rudder stock 4 so that the deviation between the assembly position of the rudder blade, rudder shank 5, and rudder stock 4 and the reference position is within the preset range.

[0043] In some optional embodiments, before installing the base 1, the reverse structural reinforcement of the base 1 is determined and a reference mark is determined; the stiffeners of the base 1 are aligned and the corresponding reinforcements are placed in place; the distance between the base 1 and the cross reference line 7 is measured to ensure that the deviation does not exceed 5mm; otherwise, the position of the base 1 is adjusted until the deviation is less than 5mm and the deviation between the base stiffeners and the reverse reinforcement is less than 0.5 times the thickness of the reinforcement plate; the welding of the base 1 is then completed.

[0044] In some optional embodiments, the rudder blade is rotated to its zero-point reference position; the rudder handle 5 is hoisted and installed onto the rudder stock 4, and the rudder handle 5 is rotated to align the zero-point reference positions of the rudder handle 5 and the rudder stock 4; a scale is placed on the rudder handle 5 at a position away from the center of the rudder stock 4 towards the bow fork, and the center of the fork is confirmed according to the scale; a plumb bob 8 is used to check the deviation between the center position of the fork and the deck surface marking line, recorded as d1, confirming that the plumb bob 8 records a positive value to the left of the deck surface marking line, and confirming that the plumb bob 8 records a negative value to the right of the deck surface marking line; the distance between the center of the stern fork and the ground marking line is measured and recorded as d2; the average value of d1 and d2 is calculated. The average of d1 and d2 is the overall parallel deviation d of rudder shank 5 relative to the center line of the rudder system. The overall parallel deviation d is eliminated after the rudder stock 4 is in its natural state at the center of the rudder system after the ship is launched. Subtract the overall deviation d from d1 and d2 respectively, and the absolute value of the obtained value is the circumferential deviation D of rudder shank 5. The circumferential deviation D is required to be no more than 3mm. When the circumferential deviation D is confirmed to be no more than 3mm, the press-fitting of rudder shank 5 can be completed directly. When the circumferential deviation D exceeds 3mm, rudder shank 5 needs to be rotated to adjust the deviation to be less than 3mm, the zero-point reference position of rudder stock 4 and rudder shank 5 should be re-established, and the press-fitting of rudder shank 5 should be completed.

[0045] In some optional embodiments, the steps include: adjusting the assembly positions of the rudder blade, rudder stick 5, and rudder stub 4 so that the deviation between the assembly positions of the rudder blade, rudder stick 5, and rudder stub 4 and the reference position is within a preset range; maintaining the rudder blade at the zero-point reference position; adjusting the operation of the servo motor 2 according to the zero-point reference position; setting the base bolt holes on the base 1 according to the position of the servo motor 2; completing the servo motor 2 gasket fitting or epoxy casting work; installing the base bolts to complete the final installation of the servo motor 2.

[0046] In this invention, the term "multiple" refers to at least two or more, unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for improving the installation accuracy of a servo motor, characterized in that, It includes at least the following steps, A base matching the dimensions of the servo's bottom is provided; Determine the crosshair reference line for installing the servo mount; Install the servo base according to the crosshair reference line; The rudder blade and rudder bearing are mounted on the base; Assemble the rudder blades, rudder handle, and rudder stock according to the zero-point reference position; Adjust the assembly positions of the rudder blade, the rudder handle, and the rudder stock so that the deviation between the assembly positions of the rudder blade, the rudder handle, and the rudder stock and the reference positions is within a preset range; The step of setting a base that matches the servo motor according to the size of the servo motor bottom includes: designing a base that matches the size of the servo motor foot; determining the horizontal and vertical stiffening plates according to the force on the base, wherein the position of the stiffening plates is not less than a preset range from the minimum distance between the base bolts after installation; Reverse reinforcement is set according to the position of the longitudinal and transverse stiffeners of the base; The step of installing the servo base according to the cross reference line includes: confirming that the positioning deviation of the base relative to the cross reference line does not exceed 5mm based on the alignment of the transverse and longitudinal stiffeners with the reverse reinforcement. Confirm the dimensions of the base panel, ensuring that each side dimension of the base panel is at least 15mm larger than the required dimensions; based on the location of the base bolt holes and the base installation position, confirm the transverse and longitudinal stiffening plates, ensuring that the distance between the stiffening plates and the hexagonal distance after the anchor bolts are installed is greater than or equal to 15mm; determine the reinforcement on the reverse side of the structure based on the finally determined base stiffening plate positions; manufacture the base according to the design drawings, without drilling the anchor bolt holes during the base manufacturing stage; and prepare the reverse reinforcement at the base installation position in advance according to the design drawings.

2. The method for improving the installation accuracy of the servo motor according to claim 1, characterized in that, The step of determining the crosshair reference line for installing the servo mount includes: Determine the center of the rudder system based on the marking lines around the rudder sleeve or the rudder hole; Draw cross lines on the hull along the length of the ship and perpendicular to the length of the ship, based on the center of the rudder system.

3. The method for improving the installation accuracy of the servo motor according to claim 1, characterized in that, The steps of assembling the rudder blade, rudder stick, and rudder stock according to the zero-point reference position include: Confirmation and press-fit of the zero-point reference position for the rudder handle installation; With the rudder blade in the zero-point reference position, confirm and press-fit the rudder handle to the zero-point reference position, and align the rudder handle and rudder stock with the zero-point reference position. Check the deviation between the center of the fork and the ship's length direction marking line on the deck surface. Confirm that the deviation does not exceed 3mm. Otherwise, rotate the rudder to make the deviation less than 3mm. Reconfirm the zero point reference position of the rudder stock and rudder.

4. The method for improving the installation accuracy of the servo motor according to claim 2, characterized in that, Find the center of the rudder hole by referring to the markings on the rudder sleeve (front, back, left, right) or the existing rudder hole. Based on the hull structure, draw cross reference lines along the length of the ship and perpendicular to the length of the ship through the center of the rudder hole; mark the punching on the drawn cross reference lines.

5. The method for improving the installation accuracy of the servo motor according to claim 1, characterized in that, Before installing the base, determine the reinforcement of the reverse side structure of the base and identify reference marks; Align the base stiffeners and place the corresponding reinforcements in place; measure the distance between the base and the cross reference line to ensure the deviation does not exceed 5mm. Otherwise, adjust the base position until the deviation is less than 5mm, and the deviation between the base stiffener and the reverse reinforcement is less than 0.5 times the thickness of the reinforcement plate; complete the base welding work.

6. The method for improving the installation accuracy of the servo motor according to claim 3, characterized in that, Rotate the rudder blade to its zero-point reference position; hoist the rudder handle and install it onto the rudder stock, rotating the rudder handle to align the zero-point reference positions of the rudder handle and rudder stock; place a scale on the rudder handle at a position away from the center of the rudder stock towards the bow fork, and confirm the center of the fork according to the scale; use a plumb bob to check the deviation between the center position of the fork and the deck surface marking line, and record it as d1, confirming that the plumb bob is recorded as a positive value when it is to the left of the deck surface marking line, and a negative value when it is to the right of the deck surface marking line; measure the distance between the center of the stern fork and the ground marking line, and record it as d2; calculate the average of d1 and d2, and the... The average value is the overall parallel deviation d of the rudder stick relative to the center line of the rudder system. The overall parallel deviation d is eliminated after the rudder stock is in its natural state at the center of the rudder system after the ship is launched. Subtract the overall deviation d from d1 and d2 respectively. The absolute value of the obtained value is the circumferential deviation D of the rudder stick. The circumferential deviation D is required to be no more than 3mm. When the circumferential deviation D is confirmed to be no more than 3mm, the press-fitting of the rudder stick can be completed directly. When the circumferential deviation D exceeds 3mm, the rudder stick needs to be rotated to adjust the deviation to be less than 3mm. The zero reference position of the rudder stock and rudder stick should be re-established, and the press-fitting of the rudder stick should be completed.

7. The method for improving the installation accuracy of the servo motor according to claim 1, characterized in that, The steps of adjusting the assembly positions of the rudder blade, rudder handle, and rudder stock to ensure that the deviation between their assembly positions and the reference positions is within a preset range include: maintaining the rudder blade at the zero-point reference position; adjusting the operation of the servo motor according to the zero-point reference position; setting the base bolt holes on the base according to the servo motor position; completing the servo motor gasket fitting or epoxy casting work; and installing the base bolts to complete the final installation of the servo motor.

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