Bilge keel capable of reducing turning radius of ship

Abstract

The bilge keel capable of reducing the turning radius of the ship comprises a bilge keel main body which is formed by connecting double plates at a certain included angle, is arranged at a bilge part of a ship body and forms a cavity with a wedge-shaped section with the ship body; the bilge keel rotating plate is arranged on the bilge keel main body, and one end of the bilge keel rotating plate is hinged to the bilge keel main body; the adjusting mechanism is connected between the bilge keel main body and the bilge keel rotating plate and is used for adjusting the opening angle of the bilge keel rotating plate; the input end of the control system is connected with a sensor installed on the ship body, the sensor monitors the sailing state of the ship in real time, and the output end is connected with the adjusting mechanism. While the seakeeping performance of the ship is improved, the turning radius of the ship can be effectively reduced, and the maneuverability of the ship is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ship bilge keel, especially relates to a ship turning radius reducing bilge keel. BACKGROUND

[0002] The bilge keel is a continuous profile installed in the bilge of the ship (the line type part connected by the ship side and the bottom plate), generally acts on the ship with small square coefficient, the length is generally 1 / 3~1 / 2 of the ship length, the width is generally 4%~6% of the ship width, is generally symmetrically installed in the bilge of the ship side, and the structural form can be divided into single plate and double plate.

[0003] The main function of the bilge keel is to reduce the rolling amplitude by increasing the damping when the ship rolls, and the ship's seakeeping ability and stability are enhanced, and it belongs to a fixed type roll damping device.However, the bilge keel can increase the turning radius of the ship while improving the stability of the ship, and has a certain influence on the flexibility of the ship's maneuverability.

[0004] During the navigation of the ship, especially in narrow water area or complex channel, the size of the turning radius directly affects the safety and efficiency of navigation.For solving the problem of reducing the turning radius of the ship, the method of installing side thrusters on the ship is usually used to solve the problem, and the method has good effect, but the structure of the side thruster is complex, the installation cost is high, and the economy is poor.In addition, the traditional bilge keel design makes the turning radius of the ship increase due to the large volume and fixed structure of the ship when turning.Therefore, a new type of bilge keel for reducing the turning radius is proposed, which can effectively reduce the turning radius of the ship while improving the seakeeping ability of the ship and improving the maneuvering performance of the ship. SUMMARY

[0005] The utility model aims at providing a kind of bilge keel for reducing the turning radius of ship, improve the seakeeping ability of ship while effectively reducing the turning radius of ship, improve the maneuvering performance of ship.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of bilge keel for reducing the turning radius of ship, comprising:

[0007] The bilge keel main body is composed of double plates with a certain angle, and is installed in the bilge of the ship body, forming a wedge-shaped cavity with the ship body;

[0008] The bilge keel rotating plate is arranged on the bilge keel main body, and one end is hinged to the bilge keel main body;

[0009] The adjusting mechanism is connected between the bilge keel main body and the bilge keel rotating plate, and adjusts the opening angle of the bilge keel rotating plate;

[0010] The control system is connected with sensors installed on the ship body at the input end, and the sensors monitor the sailing state of the ship in real time.

[0011] Further, the bilge keel main body cavity is internally provided with a sealing plate, the sealing plate divides the cavity into a plurality of hollow regions, and each hollow region has only one bilge keel rotating plate.

[0012] Further, the bilge keel main body cavity is internally provided with a reinforcing plate.

[0013] Further, the adjusting mechanism is a hydraulic rod, one end of which is hinged to the bilge keel rotating plate, and the other end is hinged to the reinforcing plate.

[0014] Further, the reinforcing plate has a through hole in the middle.

[0015] Further, the length of the bilge keel main body is 30%-50% of the length of the ship, and the width is 4%-6% of the width of the ship.

[0016] Compared with the prior art, the utility model has the beneficial effects that,

[0017] First, the utility model discloses a design of the bilge keel main body and the introduction of the adjusting mechanism, when the ship turns, the control system calculates the optimal opening angle of the bilge keel according to the speed, direction and turning radius detection data of the sensor and sends a control instruction to the adjusting mechanism, the adjusting mechanism adjusts the opening angle of the inboard bilge keel rotating plate according to the instruction of the control system, thereby increasing the inboard resistance of the ship when turning, and the purpose of reducing the turning radius of the ship is achieved.

[0018] Second, the utility model discloses that when the ship normally sails, the control system sends a closing bilge keel rotating plate instruction to the adjusting mechanism, the adjusting mechanism closes the bilge keel rotating plate according to the instruction of the control system, thereby reducing the resistance of the ship when sailing, at this time, the bilge keel mainly plays a role in enhancing the sea keeping performance of the ship. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a sectional view schematic view of the utility model;

[0021] Figure 3 It is a local enlarged schematic view of the utility model;

[0022] Figure 4 The control system flow chart of the utility model.

[0023] Wherein, 1 bilge keel main body, 2 bilge keel rotating plate, 21 rotating plate and bilge keel main body hinge, 3 adjusting mechanism, 31 bilge keel main body and hydraulic device hinge, 32 bilge keel main body and bilge keel rotating plate hinge, 4 hull. Specific embodiments

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] As shown in Figure 1 , Figure 2 and Figure 3 , a bilge keel for reducing ship turning radius, characterized in that, comprising: bilge keel main body 1, composed of double plates with a certain angle, installed in the bilge of the hull, forming a wedge-shaped cavity with the hull; bilge keel rotating plate 2, provided on the bilge keel main body 1, one end hinged to the bilge keel main body 1; adjusting mechanism 3, connected between the bilge keel main body 1 and the bilge keel rotating plate 2, adjusting the opening angle of the bilge keel rotating plate 2.

[0026] The bilge keel main body 1 cavity is provided with a sealing plate, which divides the cavity into multiple hollow areas, so that each hollow area has only one bilge keel rotating plate 2. The bilge keel main body 1 cavity is also provided with a reinforcing plate, and the reinforcing plate has a through hole in the middle.

[0027] The adjusting mechanism 3 is a hydraulic rod, one end of which is hinged to the bilge keel rotating plate 2, and the other end is hinged to the reinforcing plate.

[0028] The length of the bilge keel main body 1 is 30%-50% of the ship length, and the width is 4%-6% of the ship width.

[0029] As shown in Figure 4The control system is connected with the sensors installed on the ship body at the input end and connected with the adjusting mechanism 3 at the output end. When the ship is turning, the control system calculates the best opening angle of the bilge keel according to the speed, direction and turning radius detected by the sensors and sends a control instruction to the adjusting mechanism 3. The adjusting mechanism 3 adjusts the opening angle of the inner side bilge keel according to the instruction of the control system, thereby increasing the inner side resistance of the ship when turning and achieving the purpose of reducing the turning radius of the ship. When the ship is normally sailing, the control system sends a closing instruction of the bilge keel to the adjusting mechanism 3, and the adjusting mechanism 3 closes the bilge keel according to the instruction of the control system.

Claims

1. A reduced turning radius bilge keel for a marine vessel, characterized by, The utility model relates to a kind of ship bottom keel structures, including: The bilge keel main body (1) is composed of two plates with a certain angle, installed in the bilge of the hull, and forms a wedge-shaped cavity with the hull; The bilge keel rotating plate (2) is arranged on the bilge keel main body (1), and one end is hinged to the bilge keel main body (1); The adjusting mechanism (3) is connected between the bilge keel main body (1) and the bilge keel rotating plate (2), and adjusts the opening angle of the bilge keel rotating plate (2); The control system is connected to the sensor installed on the hull at the input end, and the sensor monitors the sailing state of the ship in real time. The output end is connected to the adjusting mechanism (3).

2. A turning radius reducing bilge keel for a marine vessel as claimed in claim 1, wherein, The bilge keel main body (1) is provided with a sealing plate inside the cavity, which divides the cavity into multiple hollow areas, so that each hollow area has only one bilge keel rotating plate (2).

3. The reduced turn radius bilge keel of claim 1, wherein, The bilge keel main body (1) is provided with a reinforcing plate inside the cavity.

4. A turning radius reducing bilge keel for a marine vessel as claimed in claim 3, wherein, The adjusting mechanism (3) is a hydraulic rod, one end of which is hinged to the bilge keel rotating plate (2), and the other end is hinged to the reinforcing plate.

5. The reduced turn radius bilge keel of claim 3, wherein, The reinforcing plate has a through hole in the middle.

6. The reduced turn radius bilge keel of claim 1, wherein, The length of the bilge keel main body (1) is 30%-50% of the length of the ship, and the width is 4%-6% of the width of the ship.

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