WO2023044839A1

WO2023044839A1 - Rudder blade device and ship

Info

Publication number: WO2023044839A1
Application number: PCT/CN2021/120561
Authority: WO
Inventors: 宋勇荣; 樊岩
Original assignee: 无锡市东舟船舶设备股份有限公司
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2023-03-30
Also published as: CN114026020A

Abstract

A rudder blade device and a ship. The rudder blade device comprises a first steering gear (2) and a second steering gear (6), wherein the first steering gear (2) and the second steering gear (6) are arranged on a hull; a first rudder blade (4) and a second rudder blade (8) are respectively provided on two sides of a propeller (1); the first steering gear (2) drives the first rudder blade (4) by means of a first rudder stock (3); and the second steering gear (6) drives the second rudder blade (8) by means of a second rudder stock (61). In the rudder blade device, the first rudder blade and the second rudder blade are mounted on the two sides of the propeller, which can overcome resistance generated due to the thickness of the rudder blades and reduce fuel consumption. Moreover, the first rudder blade and the second rudder blade can be independently manipulated, which improves the manipulation performance of a ship.

Description

Rudder blade device and ship

technical field

The present application relates to the technical field of ships, for example, to a rudder blade device and a ship.

Background technique

Ships play a very important role in the modern transportation industry. When the ship needs to turn when sailing, the rudder blade installed behind the propeller is first driven by the steering gear to rotate, so that the speed of the water flowing through the two opposite outer surfaces of the rudder blade changes, so that the two sides of the rudder blade are affected Different pressures are generated to form a pressure difference, thereby generating lift on the rudder blades, and under the action of the lift, the ship turns.

Rudder blades of ships in the related art, including conventional rudders and flap rudders, are installed directly behind the propeller. Due to the certain thickness of the rudder blade itself, a certain resistance will be generated on the rudder blade when the ship is sailing. In order to reduce drag, the thickness of the rudder blade should be reduced as much as possible. However, since the rudder blade itself needs to have a certain rigidity and strength, the thickness of the rudder blade cannot be reduced without limit, so that the resistance generated on the rudder blade cannot be reduced, because the resistance acting on the rudder blade will affect the sailing speed, resulting in a large amount of fuel consumption.

Contents of the invention

The present application provides a rudder blade device and a ship, which can reduce the resistance acting on the rudder blade, thereby saving fuel.

In a first aspect, the present application provides a rudder blade device, comprising:

a first steering gear, the first steering gear is arranged on the hull;

a first rudder blade, the first rudder blade is arranged on one side of the propeller of the hull;

The first rudder stock assembly, the first rudder stock assembly includes a first sealing assembly and a first rudder stock, the first sealing assembly is arranged on the hull, and the first rudder stock passes through the first rudder stock In the sealing assembly, one end of the first rudder stock is in transmission connection with the first steering gear, and the other end of the first rudder stock is fixedly connected with the first rudder blade, and the first steering gear can drive the The first rudder stock rotates around its own axis in the first sealing assembly, thereby driving the first rudder blade to rotate.

In a second aspect, the present application provides a ship, including the above-mentioned rudder blade device.

Description of drawings

Fig. 1 is the schematic diagram of a kind of rudder blade device of the present application;

Fig. 2 is a schematic diagram of a first rudder blade and a first rudder stock in a rudder blade device of the present application;

Fig. 3 is a schematic diagram of the first rudder blade and the second rudder blade rotating in the same direction in a rudder blade device of the present application;

Fig. 4 is a schematic diagram of the relative rotation of the first rudder blade and the second rudder blade in a rudder blade device of the present application.

In the picture:

1. Propeller; 2. The first steering gear; 3. The first rudder stock; 31. Connecting flange; 4. The first rudder blade; 41. The first part; 42. The second part; 5. The first sealing assembly; 51. Connecting sleeve; 52. Seal; 53. Bushing; 6. Second steering gear; 61. Second rudder stock; 7. Second sealing assembly; 8. Second rudder blade; 9. Steering gear deck.

Detailed ways

The technical solutions of the present application will be described below in conjunction with the accompanying drawings and embodiments.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In order to reduce the problem of poor fuel economy of the ship due to the resistance of the rudder blades, as shown in Figures 1-4, the present application provides a rudder blade device. The rudder blade device includes: a first steering gear 2, a first rudder blade 4 and a first rudder stock assembly.

Wherein, the first steering gear 2 is rotated and arranged on the hull; the first rudder blade 4 is arranged on one side of the propeller 1 of the hull; the first rudder stock assembly includes a first sealing assembly 5 and a first rudder stock 3, and the first sealing assembly 5 is arranged on the hull, the first rudder stock 3 is pierced in the first sealing assembly 5, one end of the first rudder stock 3 is in transmission connection with the first steering gear 2, and the other end of the first rudder stock 3 is connected with the first rudder blade 4 is fixedly connected, the first steering gear 2 can drive the first rudder stock 3 to rotate around its own axis in the first sealing assembly 5, thereby driving the first rudder blade 4 to rotate.

A rudder blade device provided by the present application is provided with a first steering gear on the hull, the first steering gear is connected to the first rudder blade through the first rudder stock assembly, and the first rudder blade is arranged on one side of the propeller of the hull , the first steering gear 2 drives the first rudder stock 3 to drive the first rudder blade 4 to rotate, so that the sailing direction of the ship can be adjusted. Since the original rudder blade is positioned at the rear of the propeller 1 instead of being positioned at one side of the propeller 1, the resistance acting on the rudder blade is reduced, thereby saving fuel. When the first rudder blade 4 rotates, the direction of the water flow is directly changed, and a reaction force is formed on the first rudder blade 4 to push the whole ship to turn.

Optionally, the first rudder blade 4 is in an inverted L shape and includes a first part 41 and a second part 42 connected to each other, and the first part 41 is fixedly connected to the first rudder stock 3 . Exemplarily, in this embodiment, the first part 41 and the second part 42 transition through a circular arc. Through the above arrangement, the connection between the first rudder blade 4 and the first rudder stock 3 is facilitated.

Optionally, the second part 42 is streamlined. Since the second part 42 mainly plays the role of adjusting the pressure of the water flow, the second part 42 is designed to be streamlined, which can reduce the resistance of the sea water, thereby facilitating the rotation of the first rudder blade 4 through the first rudder stock 3 . In this embodiment, the first part 41 is made of steel plates, and the second part 42 is made of a box-shaped structure formed by horizontal and vertical ribs and wrapped and welded by outer plates. The type value and the curvature of the airfoil of the first rudder blade 4 are calculated and designed according to the wake flow of the propeller 1, so that the first rudder blade 4 can better meet the use requirements.

Optionally, the lower end of the first rudder stock 3 is provided with a connecting flange 31, and a connecting hole is provided on the first part 41, and the fastener is connected to the connecting flange 31 through the connecting hole to connect the first rudder stock 3 with the second rudder stock. A rudder blade 4 is fixedly connected. The installation of the first rudder stock 3 and the first rudder blade 4 is facilitated by using the first rudder stock 3 connecting the flange 31 . In order to improve the strength of the connection, a plurality of connection holes are provided at intervals on the first part 41, and the connection holes on the connection flange 31 are set in one-to-one correspondence, and are installed by a plurality of fasteners, so that the first rudder The rod 3 is closely connected with the first rudder blade 4 .

Optionally, the first sealing assembly 5 includes a connecting sleeve 51 and a sealing member 52, the steering gear deck 9 of the hull is provided with a through hole for the first rudder stock 3 to pass through, and one end of the connecting sleeve 51 is connected to the rudder of the hull. The engine deck 9 is connected and communicated with the through hole, the other end of the connecting sleeve 51 is arranged on the bottom plate of the hull, and the sealing member 52 is sleeved on the first rudder stock 3 and is located at the through hole. The installation of the first rudder stock 3 is facilitated by providing the connecting sleeve 51 , and the sealing member 52 is provided to prevent seawater from flowing into the steering gear cabin through the gap between the first rudder stock 3 and the connecting sleeve 51 . In order to facilitate the installation of the connecting sleeve 51, a plurality of reinforcing ribs are provided along the circumference of the connecting sleeve 51, one end of the reinforcing rib is connected with the connecting sleeve 51, and the other end is welded with the hull. 51 is stably installed on the hull, and the ribs can strengthen the strength of the connecting sleeve 51 .

Optionally, the lower end of the connecting sleeve 51 is provided with a lower seat, the lower seat is fixedly connected with the bottom plate of the ship, the lower seat is fixedly provided with a bushing 53, and the first rudder stock 3 is passed through the bushing 53 middle. In this embodiment, the bushing 53 is a non-metallic bushing or a copper bushing, and the bushing 53 forms a friction pair with the first rudder stock 3 , and the first rudder stock 3 rotates inside the bushing 53 . The arrangement of the bushing 53 can ensure that the first rudder stock 3 rotates around its own axis and reduce the shaking in the circumferential direction, thereby ensuring that the first rudder stock 3 can work effectively. Moreover, the dry friction between the first rudder stock 3 and the connection sleeve 51 can be avoided by setting the bushing 53 , thereby protecting the first rudder stock 3 and reducing wear of the first rudder stock 3 .

Optionally, an expansion sleeve is provided on the first steering gear 2, and the first rudder stock 3 is connected with the first steering gear 2 through the expansion sleeve. The connection between the first steering gear 2 and the first rudder stock 3 is facilitated by setting the expansion sleeve. In other embodiments, excessive taper or key connection may also be used between the first steering gear 2 and the first rudder stock 3, and there is no excessive limitation here.

Optionally, a steering gear base is fixedly arranged on the hull, and the first steering gear 2 is mounted on the steering gear base. Exemplarily, the steering gear base is welded on the steering gear deck 9, and the first steering gear 2 is fixedly connected to the steering gear base. By setting the steering gear seat, it is convenient to install the first steering gear 2 .

Optionally, the rudder blade device further includes a second steering gear 6, a second rudder blade 8 and a second rudder stock assembly. Wherein, the second steering gear 6 is arranged on the hull; the second rudder blade 8 is arranged on the other side of the propeller 1 of the hull, and the second rudder blade 8 is arranged in parallel with the first rudder blade 4 at intervals, and is symmetrical about the axis of the propeller 1 The second rudder stock assembly comprises a second sealing assembly 7 and a second rudder stock 61, the second sealing assembly 7 is arranged on the hull, the second rudder stock 61 is penetrated in the second sealing assembly 7, and the second rudder stock 61 One end is in transmission connection with the second steering gear 6, and the other end of the second rudder stock 61 is fixedly connected with the second rudder blade 8, and the second steering gear 6 can drive the second rudder stock 61 to rotate around its own axis in the second sealing assembly 7 , thereby driving the second rudder blade 8 to rotate. Exemplarily, in this embodiment, the second rudder blade 8 and the second rudder stock assembly are the same as the first rudder blade 4 and the first rudder stock assembly, and the second rudder blade 8 and the second rudder stock assembly are no longer described here. The structure of the components is described in detail.

Adopting the first rudder blade 4 and the second rudder blade 8 has the following characteristics:

The first rudder blade 4 and the second rudder blade 8 are respectively installed on both sides of the propeller 1. When the ship sails, especially when the rudder angle is small, the resistance formed due to the thickness of the rudder blade is theoretically overcome, and the whole ship is In other words, it has a certain energy-saving effect.

As shown in FIG. 3 and FIG. 4 , the first rudder blade 4 and the second rudder blade 8 can be operated completely independently, and the rudder angle can be turned in the same direction or relatively. When the ship needs to stop, the first rudder blade 4 and the second rudder blade 8 can be rotated to 90 degrees, so that the first rudder blade 4 and the second rudder blade 8 are completely perpendicular to the water flow of the propeller 1, which can effectively reduce the braking of the ship When the forward distance, reduce the chance of ship collision.

The first rudder blade 4 and the second rudder blade 8 are symmetrically installed on both sides of the propeller 1, and each rudder blade can be independently manipulated to directly change the direction of the wake of the propeller 1 and improve the maneuverability of the ship, especially the maneuverability during low-speed navigation ability.

This embodiment also provides a ship, including the above rudder blade device, which can reduce the resistance acting on the rudder blade, thereby saving fuel.

Claims

A rudder blade device, comprising:

A first steering gear (2), the first steering gear (2) is arranged on the hull;

The first rudder blade (4), the first rudder blade (4) is arranged on one side of the propeller (1) of the hull;

The first rudder stock assembly, the first rudder stock assembly includes a first sealing assembly (5) and a first rudder stock (3), the first sealing assembly (5) is arranged on the hull, the first The rudder stock (3) is pierced in the first sealing assembly (5), and one end of the first rudder stock (3) is in transmission connection with the first steering gear (2), and the first rudder stock ( The other end of 3) is fixedly connected with the first rudder blade (4), and the first steering gear (2) can drive the first rudder stock (3) around the first sealing assembly (5) Its own axis rotates, thereby driving the first rudder blade (4) to rotate.
The rudder blade device according to claim 1, wherein, the first rudder blade (4) is in an inverted L shape, comprising a first part (41) and a second part (42) connected to each other, and the first part (41) is fixedly connected with the first rudder stock (3).
The rudder blade device according to claim 2, wherein the second portion (42) is streamlined.
The rudder blade device according to claim 2, wherein, the lower end of the first rudder stock (3) is provided with a connecting flange (31), the first part (41) is provided with a connecting hole, and the fastener The first rudder stock (3) is fixedly connected with the first rudder blade (4) through the connection hole and connected with the connection flange (31).
The rudder blade device according to claim 1, wherein, the first sealing assembly (5) includes a connecting sleeve (51) and a sealing member (52), and the steering gear deck (9) of the hull is provided with a The through hole through which the first rudder stock (3) passes, one end of the connecting sleeve (51) is connected to the steering gear deck (9) of the hull and communicates with the through hole, the connecting sleeve The other end of the cylinder (51) is arranged on the bottom plate of the hull, and the sealing member (52) is sleeved on the first rudder stock (3) and located at the through hole.
The rudder blade device according to claim 5, wherein, the lower end of the connecting sleeve (51) is provided with a lower seat, and the lower seat is fixedly connected with the ship bottom plate, and the lower seat is The internal fixation is provided with a bushing (53), and the first rudder stock (3) is passed through the bushing (53).
The rudder blade device according to claim 1, wherein, the first steering gear (2) is provided with an expansion sleeve, and the first rudder stock (3) is connected to the first steering gear ( 2) connect.
The rudder blade device according to claim 1, wherein a steering gear base is arranged on the hull, and the first steering gear (2) is installed on the steering gear base.
The rudder blade device according to claim 1, further comprising a second steering gear (6), the second steering gear (6) being arranged on the hull;

The second rudder blade (8), the second rudder blade (8) is arranged on the other side of the propeller (1) of the hull, the second rudder blade (8) and the first rudder blade (4) arranged in parallel at intervals, and symmetrical about the axis of the propeller (1);

The second rudder stock assembly, the second rudder stock assembly includes a second sealing assembly (7) and a second rudder stock (61), the second sealing assembly (7) is arranged on the hull, the second The rudder stock (61) is passed through the second sealing assembly (7), and one end of the second rudder stock (61) is in transmission connection with the second steering gear (6), and the second rudder stock ( The other end of 61) is fixedly connected with the second rudder blade (8), and the second steering gear (6) can drive the second rudder stock (61) around the second sealing assembly (7). Its own axis rotates, thereby driving the second rudder blade (8) to rotate.
A ship, comprising the rudder blade device according to any one of claims 1-9.