A positioning and installing method for a ship steering engine

Abstract

The application discloses a ship rudder engine positioning installation method, comprising the following steps: installing a rudder handle; marking a position line of a rudder mechanism base; installing the rudder mechanism; installing an oil cylinder; installing a thrust mechanism; and installing a mechanical positioner and an electrical positioner. The application is convenient to construct and simple to operate, can quickly install the rudder engine in place, and is high in installation precision.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to a method for positioning and installing a ship's steering gear. Background Technology

[0002] The ship's steering gear is a heading control device that enables the ship to turn, turn around, and sail straight, and is an important piece of equipment for ship navigation.

[0003] Currently, the positioning and installation of servo motors uses steel wire positioning, which requires the installation of a wire puller, is cumbersome and labor-intensive, and has low positioning accuracy. Summary of the Invention

[0004] In view of this, the present invention provides a method for positioning and installing a ship steering gear to solve the problems existing in the background art.

[0005] A method for positioning and installing a ship's steering gear specifically includes the following steps:

[0006] S1, Install the rudder handle onto the rudder stock;

[0007] S2, mark the positioning line of the pusher mechanism base on the pusher mechanism base, erect a marker on each side of the rudder, and mark the cylinder center height reference line on the marker. The cylinder center height reference line is located below the upper end face of the rudder and the vertical distance between it and the upper end face of the rudder is C.

[0008] S3, Install the rudder mechanism:

[0009] Install welding shims on the pusher mechanism base, place the pusher mechanism base on the welding shims, and align the factory-installed mounting lines on the pusher mechanism base with the positioning lines marked on the pusher mechanism base; then, adjust the height of the pusher mechanism base so that the height of the center lines of the two cylinders is flush with the cylinder center height reference line on the marker; then, adjust the upper end face of the pusher mechanism base to be parallel to the upper end face of the rudder handle, and use adjusting bolts to lock the pusher mechanism base on the pusher mechanism base; then, install adjusting shims between the pusher mechanism base and the welding shims, and after installation, use fastening bolts to fix the pusher mechanism base, adjusting shims, welding shims and pusher mechanism base into one unit;

[0010] S4 connects the hydraulic cylinder to the rudder handle and the pusher mechanism;

[0011] S5, Install the thrust mechanism on the base of the rudder mechanism;

[0012] S6, a mechanical limiter is installed on the deck to limit the maximum mechanical angle of the rudder blade and an electrical limiter to limit the maximum electrical angle of the rudder angle.

[0013] Preferably, before installing the rudder handle in step S1, the rudder blades, rudder stock, upper rudder bearing, lower rudder bearing, and pusher mechanism base of the servo motor have been installed.

[0014] Preferably, the specific steps for installing the rudder handle in S1 are as follows:

[0015] Turn the rudder blade to the rudder angle zero position;

[0016] Place the rudder handle onto the rudder stock and adjust it to the zero rudder angle position. Then slowly tap the rudder handle until its upper surface is flush with the upper surface of the rudder stock.

[0017] Install the rudder grip plate on top of the rudder.

[0018] Preferably, the specific steps for drawing the positioning line of the pusher mechanism base on the pusher mechanism base in step S2 are as follows:

[0019] Determine the lateral centerline and longitudinal centerline of the rudder handle;

[0020] Use the lateral centerline of the rudder handle as the lateral centerline of the pusher mechanism.

[0021] Using the transverse centerline of the pusher mechanism as a reference, draw transverse positioning lines for the pusher mechanism base at a distance B on both sides of it.

[0022] Using the longitudinal centerline of the rudder handle as a reference, draw a longitudinal positioning line for the base of the rudder mechanism at a distance A on its starboard side.

[0023] Preferably, the specific steps for installing the thrust mechanism on the rudder mechanism base in step S5 are as follows:

[0024] The support plate is vertically fixed to one side of the baffle.

[0025] The support plate and baffle are set around the base of the pusher mechanism, and the support plate is attached to the base of the pusher mechanism. The support plate and baffle are then welded and fixed to the base of the pusher mechanism.

[0026] Insert a thrust wedge into the gap between the baffle and the base of the thrust mechanism. After the thrust wedge is inserted, weld it to the baffle and the base of the thrust mechanism.

[0027] Preferably, the thrust wedge is a trapezoidal wedge, and the upper part of the side of the baffle that abuts against the base of the thrust mechanism is provided with a wedge groove that matches the shape of the thrust wedge.

[0028] Preferably, the mechanical limiter includes a diagonal brace, a horizontal plate, a vertical plate, a channel steel, and hardwood. Multiple horizontal plates are fixed at equal intervals from top to bottom on one side of the diagonal brace. The vertical plate intersects the horizontal plate vertically and is fixed to the diagonal brace and the horizontal plates. The channel steel is set at the end of the horizontal plate facing the rudder handle, and the hardwood is fixed on the channel steel.

[0029] Preferably, the maximum mechanical angle of the rudder blade is -36.5° to -37° and 36.5° to 37°, and the maximum electrical angle of the rudder angle is -35.5° to -36° and 35.5° to 36°.

[0030] The beneficial effects of this invention are:

[0031] The method of this invention is convenient to construct and simple to operate, enabling the servo motor to be quickly installed in place. During the installation process, a total station is used to position the servo motor, eliminating the need for auxiliary positioning facilities such as cable guides. The installation accuracy is high, and the base of the push mechanism is parallel to the upper plane of the rudder handle, which ensures that the pin hole at the piston end of the hydraulic cylinder is concentric with the pin hole on the rudder handle, and that the pin hole at the end of the hydraulic cylinder barrel is concentric with the pin hole on the base of the push mechanism. This avoids abnormal wear of the moving parts at the connection points of the hydraulic cylinder ends, thereby improving the reliability and stability of the servo motor operation. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a top view of the pusher mechanism installation.

[0034] Figure 2 This is a schematic diagram showing the height positioning of the pusher mechanism.

[0035] Figure 3 This is a schematic diagram showing the horizontal and vertical positioning of the base of the pusher mechanism.

[0036] Figure 4 This is a fixed front view of the baffle and support plate of the thrust mechanism.

[0037] Figure 5 This is a fixed top view of the baffle and support plate of the thrust mechanism.

[0038] Figure 6 This is a top view of the arrangement of the propulsion mechanism.

[0039] Figure 7 A top view showing the mechanical and electrical limit switches installed.

[0040] Figure 8 for Figure 7 Front view of the mechanical limit switch.

[0041] Figure 9 for Figure 8 Sectional view along the DD direction.

[0042] The labels in the diagram mean:

[0043] 1. Rudder stock; 2. Rudder handle; 3. Tapered pin; 4. Hydraulic cylinder; 5. Pin center; 6. Steering mechanism base; 7. Steering mechanism base; 8. Lateral centerline of rudder handle; 9. Longitudinal centerline of rudder handle; 10. Lateral positioning line of steering mechanism base; 11. Longitudinal positioning line of steering mechanism base; 12. Hull centerline;

[0044] 13. Thrust mechanism; 1301. Thrust wedge; 1302. Baffle; 1303. Support plate; 1304. Wedge groove;

[0045] 14. Adjusting shims; 15. Deck;

[0046] 16. Mechanical limit switch; 1601. Diagonal brace; 1602. Horizontal plate; 1603. Vertical plate; 1604. Channel steel; 1605. Hardwood;

[0047] 17. Electrical limit switch; 18. Welding gasket. Detailed Implementation

[0048] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0050] The present application will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0051] This invention provides a method for positioning and installing a ship's steering gear. Before the steering gear is installed, the rudder blade, rudder stock, upper rudder bearing, lower rudder bearing, and the base of the steering mechanism have already been installed.

[0052] The ship steering gear positioning and installation method of the present invention specifically includes the following steps:

[0053] S1, Install the rudder handle 2 onto the rudder stick 1:

[0054] Specifically, turn the rudder blade to the zero rudder angle position, making sure that the center longitudinal planes of the port and starboard rudder blades are parallel. After turning the rudder blade to the zero rudder angle position, fix it in place.

[0055] Then, put the rudder handle 2 onto the rudder stick 1 and adjust it to the zero rudder angle position. Then, slowly tap the rudder handle 2 until its upper end face is flush with the upper end face of the rudder stick 1. Then, tap the conical pin 3 into the keyway between the rudder handle 2 and the rudder stick 1.

[0056] Then, install the rudder pressure plate on top of rudder 2.

[0057] S2, mark the positioning line of the pusher mechanism base on the pusher mechanism base 7, erect a marker on each side of the rudder, and mark the cylinder center height reference line on the marker. The cylinder center height reference line is located below the upper end face of the rudder and the vertical distance between it and the upper end face of the rudder is C.

[0058] Specifically, the steps for marking the positioning lines of the pusher mechanism base on the pusher mechanism base are as follows:

[0059] First, determine the lateral centerline 8 and the longitudinal centerline 9 of the rudder handle;

[0060] Then, the lateral centerline 8 of the rudder handle is taken as the lateral centerline of the pusher mechanism;

[0061] Using the transverse centerline of the pusher mechanism as a reference, draw transverse positioning lines 10 of the pusher mechanism base at a distance B on both sides (this line is also the transverse centerline of the pin on the pusher mechanism base 6 used to fix the end of the hydraulic cylinder 4).

[0062] Then, using the longitudinal centerline 9 of the rudder handle as a reference, draw a longitudinal positioning line 11 of the pusher mechanism base at a distance A from it on the starboard side (this line is also the longitudinal centerline of the pin on the pusher mechanism base used to fix the end of the hydraulic cylinder). The intersection of the transverse positioning line 10 of the pusher mechanism base and the longitudinal positioning line 11 of the pusher mechanism base is the center point of the pin used to connect the end of the hydraulic cylinder 4 and the pusher mechanism base 6.

[0063] The center line and positioning line mentioned above were all drawn using a total station.

[0064] S3, Install the rudder mechanism:

[0065] Install welding pads 18 on the pusher mechanism base 7, place the pusher mechanism base 6 on the welding pads 18, and align the factory-installed mounting lines on the pusher mechanism base 6 with the pusher mechanism base positioning lines (including the pusher mechanism base transverse positioning line 10 and the pusher mechanism base longitudinal positioning line 11) marked on the pusher mechanism base 7.

[0066] Then, adjust the height of the base 6 of the pusher mechanism so that the height of the center of the two cylinders is level with the cylinder center height reference line on the rod;

[0067] Then, use a quadrant to measure the levelness of the upper surface of the rudder 2, and adjust the upper surface of the pusher mechanism base 6 to be parallel to the upper surface of the rudder 2, with a parallelism error ≤ 5′; then use adjusting bolts to lock the pusher mechanism base 6 onto the pusher mechanism base 7.

[0068] Then, an adjusting shim 14 is installed between the base 6 of the thrust mechanism and the welding shim 18. The dimensions of the adjusting shim 14 and the welding shim 18 are machined according to the measurement data, with an allowance of 0.5mm. The contact ratio between the adjusting shim 14 and the welding shim 18 is ≥60%. The installation gap of the adjusting shim 14 is checked with a feeler gauge and is required to be ≤0.05mm. The allowable insertion depth of the feeler gauge is no more than 10mm.

[0069] After the adjusting shim 14 and the welding shim 18 are installed, the pusher mechanism base 6, the adjusting shim 14, the welding shim 18 and the pusher mechanism base 7 are fixed together as one unit with fastening bolts.

[0070] S4 connects hydraulic cylinder 4 to rudder handle 2 and the pusher mechanism:

[0071] The piston of the hydraulic cylinder 4 is connected to the rudder handle 2, and the end of its cylinder is connected to the base 6 of the pusher mechanism.

[0072] S5, Thrust mechanism 13 is installed on the rudder mechanism base 7:

[0073] First, the support plate 1303 is vertically fixed to one side of the baffle 1302;

[0074] Then, the support plate 1303 and the baffle 1302 are arranged around the base 6 of the thrust mechanism, and the support plate 1303 is attached to the base 6 of the thrust mechanism. The support plate 1303 and the baffle 1302 are welded and fixed at the positions where they contact the base 7 of the thrust mechanism. In this embodiment, the thrust wedge 1301 is a trapezoidal wedge, and the upper part of the side of the baffle 1302 that is attached to the base 6 of the thrust mechanism is provided with a wedge groove 1304 that matches the shape of the thrust wedge 1301.

[0075] Since the upper part of the baffle 1302 is provided with a wedge groove 1304, when the baffle 1302 is attached to the base 6 of the pusher mechanism, a gap will be formed between the baffle 1302 and the base 6 of the pusher mechanism. The thrust wedge 1301 is inserted into the gap between the baffle 1302 and the base 6 of the pusher mechanism. After the thrust wedge 1301 is inserted, it is welded and fixed to the baffle 1302 and the base 6 of the pusher mechanism.

[0076] The installation clearance of the thrust wedge 1301 should be checked with a feeler gauge and required to be ≤0.05mm. The allowable insertion depth of the feeler gauge should not exceed 10mm.

[0077] S6, a mechanical limiter 16 for limiting the maximum mechanical angle of the rudder blade and an electrical limiter 17 for limiting the maximum electrical angle of the rudder are installed on the deck.

[0078] The mechanical limiter includes a diagonal brace 1601, a horizontal plate 1602, a vertical plate 1603, a channel steel 1604, and a hardwood 1605. On one side of the diagonal brace 1601, multiple horizontal plates 1602 are fixed at equal intervals from top to bottom. The vertical plate 1603 intersects the horizontal plates 1602 vertically and is fixed to the diagonal brace 1601 and the horizontal plates 1602. The channel steel 1604 is set at the end of the horizontal plate 1602 facing the rudder 2, and the hardwood 1605 is fixed on the channel steel 1604.

[0079] In this embodiment, the horizontal plate 1602 is V-shaped, and the hardwood 1605 is fixed to the channel steel 1604 by bolts.

[0080] When installing the mechanical limiter 16, the center of its hardwood 1605 must be at the same height as the center of the rudder handle 2. A certain lateral distance must be maintained between the mechanical limiter 16 and the rudder handle 2 to allow the rudder blade to rotate to its maximum mechanical angle, which is -36.5° to -37° and 36.5° to 37°. When the rudder blade rotates to its maximum mechanical angle, the V-shaped arm of the transverse plate 1602 is exactly perpendicular to the rudder handle 2.

[0081] The mechanical limiter 16 is welded and fixed to the ship's deck. During the welding process, its structural deformation should be monitored.

[0082] The bracket of the electrical limiter 17 is welded and fixed to the deck of the ship, and a certain lateral distance must be maintained between the electrical limiter 17 and the rudder handle 2 so that the rudder angle can be turned to the maximum electrical angle. The maximum electrical angle of the rudder angle is -35.5° to -36° and 35.5° to 36°.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 positioning and installing a ship's steering gear, characterized in that, Specifically, the following steps are included: S1, Install the rudder handle onto the rudder stock; S2, mark the positioning line of the pusher mechanism base on the pusher mechanism base, erect a marker on each side of the rudder, and mark the cylinder center height reference line on the marker. The cylinder center height reference line is located below the upper end face of the rudder and the vertical distance between it and the upper end face of the rudder is C. The specific steps for marking the positioning lines of the pusher mechanism base on the pusher mechanism base are as follows: Determine the lateral centerline and longitudinal centerline of the rudder handle; Use the lateral centerline of the rudder handle as the lateral centerline of the pusher mechanism. Using the transverse centerline of the pusher mechanism as a reference, draw transverse positioning lines for the pusher mechanism base at a distance B on both sides of it. Using the longitudinal centerline of the rudder handle as a reference, draw a longitudinal positioning line for the base of the rudder mechanism at a distance A on its starboard side. S3, Install the rudder mechanism: Install welding shims on the pusher mechanism base, place the pusher mechanism base on the welding shims, and align the factory-installed mounting lines on the pusher mechanism base with the positioning lines marked on the pusher mechanism base; then, adjust the height of the pusher mechanism base so that the height of the center lines of the two cylinders is flush with the cylinder center height reference line on the marker; then, adjust the upper end face of the pusher mechanism base to be parallel to the upper end face of the rudder handle, and use adjusting bolts to lock the pusher mechanism base on the pusher mechanism base; then, install adjusting shims between the pusher mechanism base and the welding shims, and after installation, use fastening bolts to fix the pusher mechanism base, adjusting shims, welding shims and pusher mechanism base into one unit; S4 connects the hydraulic cylinder to the rudder handle and the pusher mechanism; S5, Install the thrust mechanism on the base of the rudder mechanism; S6, a mechanical limiter is installed on the deck to limit the maximum mechanical angle of the rudder blade and an electrical limiter to limit the maximum electrical angle of the rudder angle.

2. The ship steering gear positioning and installation method according to claim 1, characterized in that, Before installing the rudder handle in step S1, the rudder blades, rudder stock, upper rudder bearing, lower rudder bearing, and pusher mechanism base of the rudder gear have been installed.

3. The ship steering gear positioning and installation method according to claim 2, characterized in that, The specific steps for installing the rudder handle in S1 are as follows: Turn the rudder blade to the rudder angle zero position; Place the rudder handle onto the rudder stock and adjust it to the zero rudder angle position. Then slowly tap the rudder handle until its upper surface is flush with the upper surface of the rudder stock. Install the rudder grip plate on top of the rudder.

4. The method for positioning and installing a ship's steering gear according to claim 1, characterized in that, The specific steps for installing the thrust mechanism on the rudder mechanism base in step S5 are as follows: The support plate is vertically fixed to one side of the baffle. The support plate and baffle are set around the base of the pusher mechanism, and the support plate is attached to the base of the pusher mechanism. The support plate and baffle are then welded and fixed to the base of the pusher mechanism. Insert a thrust wedge into the gap between the baffle and the base of the thrust mechanism. After the thrust wedge is inserted, weld it to the baffle and the base of the thrust mechanism.

5. The ship steering gear positioning and installation method according to claim 4, characterized in that, The thrust wedge is a trapezoidal wedge, and the upper part of the side of the baffle that is in contact with the base of the thrust mechanism is provided with a wedge groove that matches the shape of the thrust wedge.

6. The method for positioning and installing a ship's steering gear according to claim 1, characterized in that, The mechanical limiter includes a diagonal brace, a horizontal plate, a vertical plate, a channel steel, and hardwood. Multiple horizontal plates are fixed at equal intervals from top to bottom on one side of the diagonal brace. The vertical plate intersects the horizontal plate vertically and is fixed to the diagonal brace and the horizontal plate. The channel steel is set at the end of the horizontal plate facing the rudder handle, and the hardwood is fixed on the channel steel.

7. The method for positioning and installing a ship's steering gear according to claim 1, characterized in that, The maximum mechanical angle of the rudder blade is -36.5° to -37° and 36.5° to 37°, and the maximum electrical angle of the rudder is -35.5° to -36° and 35.5° to 36°.

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