CN220391510U - Full-suspension rudder system of container ship - Google Patents

Full-suspension rudder system of container ship Download PDF

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Publication number
CN220391510U
CN220391510U CN202322012278.8U CN202322012278U CN220391510U CN 220391510 U CN220391510 U CN 220391510U CN 202322012278 U CN202322012278 U CN 202322012278U CN 220391510 U CN220391510 U CN 220391510U
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CN
China
Prior art keywords
rudder
sleeve
stock
blade
bearing
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CN202322012278.8U
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Chinese (zh)
Inventor
李昂
沈强昇
冯乃强
龚爱军
左奇
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Jiangsu Yangzi Xinfu Shipbuilding Co Ltd
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Jiangsu Yangzi Xinfu Shipbuilding Co Ltd
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Priority to CN202322012278.8U priority Critical patent/CN220391510U/en
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Abstract

The utility model relates to the field of ship construction, and provides a full-suspension rudder system of a container ship. The rudder sleeve is welded to a stern structure of a ship body, an upper rudder bearing is mounted at the top of the rudder sleeve, the upper rudder bearing is fixedly connected with the ship body and seals the top surface of the rudder sleeve, the rudder stock penetrates through the upper rudder bearing, and the upper rudder bearing rotatably supports the rudder stock and seals the rudder stock; a lower rudder bearing is arranged at the bottom in the rudder sleeve, and the lower rudder bearing rotatably supports a rudder stock; a rudder ball is welded at the middle part of the rudder blade facing the direction of the bow, and the rudder ball is coaxial with the propeller and is close to the propeller; the main body of the rudder blade is composed of two symmetrical smooth curved surfaces, so that a low-pressure area can be effectively reduced, cavitation is avoided, and corrosion damage on the surface of the rudder blade is reduced.

Description

Full-suspension rudder system of container ship
Technical Field
The utility model relates to the field of ship construction, in particular to a full-suspension rudder system of a container ship.
Background
The rudder system is arranged at the rear of the propeller of the large ship, the water flow direction of the propeller is changed through the rotation of the rudder system, and the steering engine of the rudder system drives the rudder blade to rotate through the rudder stock, so that the purpose of changing the sailing direction is achieved. Existing rudder systems generally include a half-suspension rudder system and a full-suspension rudder system.
The rudder blade of the semi-suspension rudder system is mounted on the rudder horn through the upper rudder pintle and the lower rudder pintle, the connection is mounted by using hydraulic nuts, and the requirements on the mounting precision and error control of the rudder blade and the rudder horn are relatively high. The semi-suspension rudder system with the rudder horn has two very clear low-pressure areas between the upper part of the rudder horn and the rudder blade and behind the gap between the lower part of the rudder horn and the rudder blade gap except at the rear of the front edge of the lower part. The two areas have gaps, the water flow can be changed in a disorder, and cavitation is easy to occur.
In order to change the wake flow of the propeller and increase the thrust of the propeller under high load, in the prior art, a rudder ball is generally arranged on the rudder blade, so that the unavoidable flow loss on the propeller can be reduced by the rudder ball, and the propulsion efficiency of the propeller is obviously improved. The semi-suspension rudder system limits the construction space of the rudder ball due to the existence of the rudder horn structure, and increases the installation difficulty.
Disclosure of Invention
The utility model aims to provide a full-suspension rudder system of a container ship, solve the problems of high installation precision of a half-suspension rudder system, increased construction difficulty caused by space limitation and easy cavitation of rudder blades, and reduce construction difficulty.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the container ship full-suspension rudder system comprises a steering engine, a rudder stock, a rudder sleeve and a rudder blade, wherein the rudder sleeve is fixedly arranged on a ship body structure, the rudder stock vertically penetrates through the rudder sleeve, the bottom of the rudder stock is connected with the rudder blade, the top of the rudder stock is connected with the steering engine, the steering engine drives the rudder stock to rotate and drives the rudder blade to rotate through the rudder stock, the rudder stock is arranged at the top of the rudder stock and is connected with the steering engine through the rudder stock, the rudder sleeve is welded on the stern structure of the ship body, the top of the rudder sleeve is provided with an upper rudder bearing, the upper rudder bearing is fixedly connected with the ship body and seals the top surface of the rudder sleeve, and the rudder stock penetrates through the upper rudder bearing to rotatably support the rudder stock and seal; a lower rudder bearing is arranged at the bottom in the rudder sleeve, and the lower rudder bearing rotatably supports a rudder stock; the rudder blade comprises a top surface, a bottom surface and two side surfaces, wherein the two side surfaces are symmetrical smooth curved surfaces, the edges of the two side surfaces are welded, a rudder ball is welded at the middle part of the rudder blade, which faces the direction of the bow, and the rudder ball is coaxial with the propeller and is close to the propeller; the lower section of the rudder stock stretches into the rudder blade, a fixed ring sleeve is arranged in the rudder blade, the lower section of the rudder stock is matched with the fixed ring sleeve through threads, and the bottom end face of the rudder stock is locked with the fixed ring sleeve through a hydraulic nut.
Further, a mounting structure is arranged in the middle of the rudder sleeve and is welded and fixed with the tail structure of the ship body, the mounting structure comprises a U-shaped structural plate and a plurality of rib plates, the bottom surface of the U-shaped structural plate is parallel to the top surface of the rudder blade, the rudder sleeve passes through the U-shaped structural plate, and the rib plates are distributed on the outer circumference of the rudder sleeve and welded and fixed with the U-shaped structural plate; the lower end of the rudder sleeve extends into the rudder blade and extends to the upper part of the fixed ring sleeve.
Further, the bottom surface of the U-shaped structural plate and the top surface of the rudder blade are correspondingly welded with jump stop blocks, and a gap is reserved between the upper and lower opposite jump stop blocks.
Further, go up the rudder bearing and install in the installation cavity at rudder sleeve top, go up the rudder bearing and include bearing box, bearing, end cover and last visor, the bearing box is installed in the rudder sleeve and is spacing by rudder sleeve inner structure, and the bearing is installed in the bearing box and with rudder stock normal running fit, the end cover is installed in the up end of bearing box, is equipped with seal structure between end cover and the rudder stock, go up the visor and install in the end cover top surface, go up the visor cover in the rudder stock.
Further, a locking mechanism is fixedly arranged at the top end of the rudder stock, and the locking mechanism is fixedly connected with the top surface of the rudder stock.
Further, a hanging ring is fixedly arranged on the top end face of the rudder stock.
Still further, the outside of rudder blade is equipped with removable board, removable board corresponds with the bottom position of rudder stock.
After the technical scheme is adopted, the beneficial effects of the utility model are as follows:
the rudder stock top is connected with the rudder stock and is locked to form a suspension structure of the rudder stock, and the rudder stock can be stably suspended and can rotate along with the rudder stock through the upper rudder bearing and the lower rudder bearing at the top and the bottom of the rudder sleeve, so that the rudder blade is fixedly connected with the lower end of the rudder stock to form the full suspension of the rudder blade, a rudder hanging arm is avoided, and the rudder system has enough space to install a rudder ball. The main body of the rudder blade is composed of two symmetrical smooth curved surfaces, so that a low-pressure area can be effectively reduced, cavitation is avoided, and corrosion damage on the surface of the rudder blade is reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic perspective view of the present utility model.
Fig. 3 is a cross-sectional view of the present utility model.
Fig. 4 is a schematic structural view of the upper rudder carrier.
In the figure: steering engine 1, rudder stock 2, rudder sleeve 3, rudder blade 4, fixed ring cover 41, screw 5, rudder stock 6, locking device 7, upper rudder bearing 8, bearing box 81, bearing 82, end cover 83, upper visor 84, seal structure 85, lower rudder bearing 9, rudder ball 10, hydraulic nut 11, removable plate 12.
Detailed Description
The following detailed description of the utility model refers to the accompanying drawings, which illustrate specific embodiments of the utility model:
as shown in fig. 1-3, the container ship full-suspension rudder system consists of a steering engine 1, a rudder stock 2, a rudder sleeve 3 and rudder blades 4. Steering wheel 1 fixed mounting is in the cabin of boats and ships, and rudder sleeve 3 fixed mounting is at the stern structure of hull, and rudder blade 4 is located the outside of hull and cooperates with screw 5. The rudder stock 3 passes through the rudder sleeve 4, and the top of rudder stock 2 is connected with steering wheel 1 and is transmitted, and the bottom of rudder stock 2 is connected with rudder blade 4, hangs rudder blade 4 in the outside of hull through rudder stock 2. When the rudder blade 4 rotates, the water flow direction of the propeller 5 is changed, thereby changing the heading of the ship.
The upper end of the rudder stock 2 is fixedly connected with the rudder stock 6 through an outer key and a key groove, the rudder stock 6 is connected with the steering engine 1, the steering engine 1 drives the rudder stock 2 to rotate by driving the rudder stock 6, and in order to prevent the rudder stock from jumping axially when water flow is unstable, a locking device 7 is fixedly arranged at the upper end of the rudder stock 2, and the locking device 7 and the rudder stock 6 are fixedly arranged. The locking device 7 may be a fixed disk fixedly mounted on the tiller 2, which is fixed to the tiller 6 by means of a fixed disk and a bolt. In order to facilitate the installation of the rudder stock 2, a hanging ring is fixedly installed on the end surface of the top of the rudder stock.
The rudder stock 2 is rotatably supported by a rudder sleeve 3. The middle part of the rudder sleeve 3 is provided with a mounting structure, and the rudder sleeve is welded and fixed with the tail structure of the ship body through the mounting structure. The mounting structure is by U type structural slab 31 and a plurality of gusset 32, and U type structural slab 31 bottom surface is parallel with the top surface of rudder blade 4, and U type structural slab 32 cover is in rudder sleeve 3 outside and welded connection, gusset 32 distribute at the outer circumference of rudder sleeve 3 and with U type structural slab 31 welded fastening, can increase rudder sleeve 3 and hull structure's welding strength through gusset 32, U type structural slab 31. An upper rudder bearing 8 and a lower rudder bearing 9 are respectively arranged on the inner sides of the top end and the bottom end of the rudder sleeve 3 for realizing the rotation support of the rudder stock 2.
As shown in fig. 4, the upper rudder bearing 8 is installed in the installation cavity at the top of the rudder sleeve 3, the upper rudder bearing 8 is composed of a bearing box 81, a bearing 82, an end cover 83 and an upper protection cover 84, the bearing box 81 is installed on the rudder sleeve 3 and limited by the internal structure of the rudder sleeve 3, the bearing box 81 is fixedly connected with the top surface of the rudder sleeve 3 through bolts, the bearing 82 is installed in the bearing box 81 and is in running fit with the rudder stock 2, the end cover 83 is installed on the upper end surface of the bearing box 81, a sealing structure 85 is arranged between the end cover 83 and the rudder stock 2, the upper protection cover 84 is sleeved on the rudder stock 2 and is installed on the top surface of the end cover 83 through screws, and a sealing ring is arranged between the upper protection cover 84 and the end cover.
The rudder blade 4 is composed of a top surface, a bottom surface and two side surfaces, the two side surfaces are symmetrical smooth curved surfaces, the two side edges of the two side surfaces are welded, an arc-shaped water diversion surface is formed on one side facing the propeller 5, and an sharp rear edge surface is formed on one side far away from the propeller, so that the low-pressure area is positioned at the front edge of the rudder blade, the surface is smooth, and the possibility of cavitation is greatly reduced. A rudder ball 10 is welded at the middle part of the rudder blade 4 facing the direction of the bow, and the rudder ball 10 is coaxial with the propeller 5 and is close to the propeller 5. The rudder ball 10 reduces the unavoidable flow losses on the propeller 5 and increases the thrust of the propeller 5.
The lower section of the rudder stock 2 stretches into the rudder blade 4, a conical fixed ring sleeve 41 is arranged in the rudder blade, the lower end of the rudder sleeve 3 stretches into the rudder blade 4 and extends to the upper side of the fixed ring sleeve 41, the rudder stock 2 is matched with the fixed ring sleeve 41 through threads, and the bottom end face of the rudder stock 2 is locked with the fixed ring sleeve 41 through a hydraulic nut 11, so that the rudder blade 4 is fixedly hung at the bottom of the rudder stock 2.
The top surface of the rudder blade 4 is sealed with the rudder sleeve in a welding mode, a detachable plate 12 is arranged on the surface of the rudder blade, and the detachable plate 12 corresponds to the bottom end position of the rudder stock 2, so that the hydraulic nut 11 at the bottom end of the rudder blade is convenient to adjust.

Claims (7)

1. The container ship full-suspension rudder system comprises a steering engine, a rudder stock, a rudder sleeve and a rudder blade, wherein the rudder sleeve is fixedly arranged on a ship body structure, the rudder stock vertically penetrates through the rudder sleeve, the bottom of the rudder stock is connected with the rudder blade, the top of the rudder stock is connected with the steering engine, the steering engine drives the rudder stock to rotate, and the rudder blade is driven to rotate by the rudder stock; a lower rudder bearing is arranged at the bottom in the rudder sleeve, and the lower rudder bearing rotatably supports a rudder stock; the rudder blade comprises a top surface, a bottom surface and two side surfaces, wherein the two side surfaces are symmetrical smooth curved surfaces, the edges of the two side surfaces are welded, a rudder ball is welded at the middle part of the rudder blade, which faces the direction of the bow, and the rudder ball is coaxial with the propeller and is close to the propeller; the lower section of the rudder stock stretches into the rudder blade, a fixed ring sleeve is arranged in the rudder blade, the lower section of the rudder stock is matched with the fixed ring sleeve through threads, and the bottom end face of the rudder stock is locked with the fixed ring sleeve through a hydraulic nut.
2. The full-suspension rudder system of the container ship according to claim 1, wherein a mounting structure is arranged in the middle of the rudder sleeve, the mounting structure is welded and fixed with the tail structure of the ship body, the mounting structure comprises a U-shaped structural plate and a plurality of rib plates, the bottom surface of the U-shaped structural plate is parallel to the top surface of the rudder blade, the rudder sleeve passes through the U-shaped structural plate, and the rib plates are distributed on the outer circumference of the rudder sleeve and welded and fixed with the U-shaped structural plate; the lower end of the rudder sleeve extends into the rudder blade and extends to the upper part of the fixed ring sleeve.
3. The full-suspension rudder system of the container ship according to claim 2, wherein the bottom surface of the U-shaped structural plate and the top surface of the rudder blade are correspondingly welded with jump stop blocks, and a gap is reserved between the upper jump stop blocks and the lower jump stop blocks which are opposite.
4. The full suspension rudder system of the container ship according to claim 1, wherein the upper rudder bearing is installed in an installation cavity at the top of the rudder sleeve, the upper rudder bearing comprises a bearing box, a bearing, an end cover and an upper protection cover, the bearing box is installed on the rudder sleeve and limited by the inner structure of the rudder sleeve, the bearing is installed on the bearing box and is in rotary fit with the rudder stock, the end cover is installed on the upper end face of the bearing box, a sealing structure is arranged between the end cover and the rudder stock, the upper protection cover is installed on the top face of the end cover, and the upper protection cover is sleeved on the rudder stock.
5. The container ship full suspension rudder system of claim 1, wherein a locking mechanism is fixedly mounted on the top end of the rudder stock, and wherein the locking mechanism is fixedly connected to the top surface of the rudder stock.
6. The full suspension rudder system of a container ship according to claim 1, wherein a lifting ring is fixedly installed on the top end surface of the rudder stock.
7. The full suspension rudder system of claim 1, wherein a detachable plate is provided on the outside of the rudder blade, the detachable plate corresponding to the bottom end position of the rudder stock.
CN202322012278.8U 2023-07-28 2023-07-28 Full-suspension rudder system of container ship Active CN220391510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322012278.8U CN220391510U (en) 2023-07-28 2023-07-28 Full-suspension rudder system of container ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322012278.8U CN220391510U (en) 2023-07-28 2023-07-28 Full-suspension rudder system of container ship

Publications (1)

Publication Number Publication Date
CN220391510U true CN220391510U (en) 2024-01-26

Family

ID=89609133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322012278.8U Active CN220391510U (en) 2023-07-28 2023-07-28 Full-suspension rudder system of container ship

Country Status (1)

Country Link
CN (1) CN220391510U (en)

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