JPH0719096U - Ship anti-sway device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a ship anti-vibration device that has a high anti-vibration effect even for small and medium-sized high-speed boats. [Structure] A ship anti-vibration device has a wing support attached to a hull A so that the position can be switched between an operating position where the whole is located above the water surface and a storage position where the wing mounting portions 21 and 22 are submerged below the water surface. Member 1, swinging blade 2 swingably attached to blade mounting portions 21 and 22 of blade supporting member 1, and blade driving for swinging swinging blade 2 up and down with respect to blade supporting member 1 in the operating position. Device 3,
A sway state sensor that detects the sway state of the hull A, and a wing control device that controls the wing drive device 3 according to the output of the sway state sensor are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ship anti-vibration device, which is particularly suitable for medium- and small-sized high-speed boats.

[0002]

[Prior Art and Problems of Invention]

 Medium- and small-sized high-speed boats under the jurisdiction of the Japan Coast Guard, such as fishery patrol boats, lighthouse patrol boats, and coast guard boats, often anchor offshore without using anchors or mooring lines, but at this time the hull is greatly shaken. , Annoying the crew.

As a swinging device for anchoring a ship, there is known one in which a swinging wing is stored on the port side during sailing and is fixedly projected from the port side when anchoring. In the case of medium- and small-sized high-speed boats, such an anti-vibration device is not effective enough.

An object of the present invention is to solve the above-mentioned problems and to provide a ship anti-vibration device which has a high anti-vibration effect even in small and medium speed boats.

[0005]

[Means for Solving the Problems]

 The ship anti-vibration device according to the present invention is a wing support member attached to a hull so that the position can be switched between an operating position where the entire wing is located above the water surface and a storage position where the wing mounting section is submerged below the water surface. A swinging wing that is swingably attached to the wing mounting portion of the wing support member, a wing drive device that swings the swinging wing up and down with respect to the wing support member in the operating position, and detects the shaking state of the hull The sway state sensor and the wing control device for controlling the wing drive device according to the output of the sway state sensor are provided.

[0006]

[Action]

 When the ship is navigating, the wing support members are located in the retracted position, and the wing support members and the damping wings are located above the water surface.

At the time of anchoring, the wing support member is located in the operating position, and the wing attachment portion and the damping wing are submerged below the water surface. In such a state, the sway state sensor detects the sway state of the hull, and the wing control device controls the wing drive device according to the output of this sensor to swing the damping wing up and down. For example, the rolling state sensor detects the rolling angle, rolling angular velocity, rolling period, etc. of the hull, and based on these detection results, the damping wings are set to a certain angle so as to minimize the wobbling of the hull. Can be rocked in cycles. Then, by forcibly oscillating the anti-vibration wing according to the swaying state of the hull, the swaying of the hull can be greatly reduced even in the case of a small or medium-sized high-speed boat, for example.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show the starboard side portion of the anti-sway device provided on the high-speed boat, and FIG. 3 shows a part thereof. Further, FIG. 4 is a system diagram of hydraulic pressure and electric power of the main part of the anti-sway device.

The anti-vibration device includes a wing support member (1), an anti-vibration wing (2), a wing drive device (3), a sway state sensor (4), and a wing control device (5). The support member (1), the wing (2), and the drive unit (3) are provided on both the left and right sides of the hull (A), but only the starboard side is shown in the drawing.

As shown in FIGS. 1 and 2, a plate-shaped mount (7) having an inverted L-shaped cross section is fixed to a portion of the starboard side (6) of the hull (A) which is always located above the water surface. Has been done. The upper horizontal part (7a) of the gantry (7) rests on the deck (8), and the lower vertical part (7b) follows the port side (6). On the outer surface of the lower part of the pedestal vertical part (7b), a swivel shaft (9) for switching that extends almost horizontally in the front-rear direction can be freely rotated by multiple bearing brackets (10) (11) (12) (13) (14). Supported by. A pinion (16) is provided near the rear end of the shaft (9). A switching hydraulic cylinder (17) is fixed vertically downward on the outer surface of the gantry vertical part (7b) above the pinion (16), and extends downward to the lower end of the piston rod (17a) of the pinion (17a). The rack (18) that engages with 16) is fixed. The base ends of a pair of front and rear plate-shaped support levers (19) (20) that form the support member (1) are fixed to the front end and rear end of the switching swivel shaft (9). . At the free end of each lever (19) (20), a wing mount (21) (22) is provided. A pair of front and rear bearing brackets (23) and (24) are provided on each wing mounting part (21) (22), and the front ends of these four brackets (23) (24) are arranged horizontally in the front-rear direction. A swivel shaft (25) for driving the extending blade is passed through and is rotatably supported. Guide plates (26) (27) are fixed to both ends of the levers (19) (20) of the brackets (23) (24) before and after the blade mounting parts (21) (22) in the longitudinal direction. . Circular guide holes (28) and (29) are concentrically formed in the guide plates (26) and (27) of the rear blade mounting portion (22). The brackets (23) and (24) in front of and behind the rear blade mounting portion (22) are formed with elongated holes (30) and (31) extending parallel to the lever (20). Short arms (32) (33) are fixed to the part of the shaft (25) between the pair of brackets (23) (24) of the front and rear wing mounts (21) (22). The arms (32) and (33) are fixed to the front and rear ends of one side of the swing wing (2). On the lever (20) side of the rear arm (33), front and rear bifurcated protrusions (33a) (33b) are formed, and the lever (20) of each protrusion (33a) (33b) is formed. Notches (34a) (34b) cut into the shaft (25) are formed at the side end. The wing drive hydraulic cylinder (35) that constitutes the drive unit (3) is fixed to the lever (20) in parallel with the rear end of the lever (20) on the rear side, and is fixed to the piston rod (35a) in parallel with the lever (20). A drive rod (36) extending through the holes (28) (29) of the guide plates (26) (27) in parallel with the lever (20) is fixed. A pair of proposals In the part of the drive rod (36) that is inserted between the inner plates (26) and (27), the prismatic portion (that enters between the front and rear protrusions (33a) and (33b) of the arm (33) ( 36a) is formed, and the notches (34a) (34b) of the protrusions (33a) (33b) and the long holes (30) of the brackets (23) (24) are formed on the front surface and the rear surface of the prismatic portion (36a). ) (31) is provided with guide pins (37) (38) extending substantially horizontally in the front and rear.

By driving the switching cylinder (17) by an appropriate means (not shown) to move the rack (18) upward, the switching shaft (9) rotates clockwise when viewed from the rear and is supported. The member (1) and the wing (2) are switched to the operating position shown in solid lines in FIGS. On the contrary, by moving the rack (18) downward, the switching shaft (9) rotates counterclockwise when viewed from the rear, and the supporting member (1) and the wing (2) are shown by a chain line in FIG. It can be switched to the standby position. When switched to the standby position, the levers (19) (20) of the support member (1) extend upward along the port side (6), and the wings (2) extend from the upper end to the deck (8). The upper part extends almost horizontally toward the inside of the hull (A) in the width direction, and the entire supporting member (1) and wings (2) are located above the water surface (L). In the state where it is switched to the operating position, the levers (19) (20) of the support member (1) extend downward along the port side (6) and the wings (2) extend from the lower end to the hull. The lower part of the lever (19) and the wing (2) are submerged below the water surface (L), extending almost horizontally outward in the width direction of (A).

In FIG. 4, a blade-driving hydraulic cylinder provided on the port side is indicated by reference numeral (39). The two oil chambers on the starboard side drive cylinder (35) and the two oil chambers on the port side drive cylinder (39) are connected to the hydraulic pressure source (42) via appropriate hydraulic pipes (40) (41). It is connected to the. Servo valves (43) (44) are installed in each pipe (40) (41), and each of these valves (43) (44) is controlled via a servo amplifier (45) (46). Connected to device (5). The sensor (4) detects the swaying state of the hull (A), for example, the rolling angle and the rolling angular velocity, which is a minute value of the rolling angle, and is composed of, for example, a vertical gyro installed in the wheelhouse. . The output of this sensor (4) is input to the control device (5). The damping device is provided with a wing angle sensor (47) that detects the swing angle of the starboard wing (2) and a wing angle sensor (48) that detects the swing angle of the starboard swaying wing. And these outputs are also input to the control unit (5). The control device (5) controls the wing drive cylinders (35) (39) according to the output of the shaking state sensor (4), and includes a computer or the like. The control device (5) performs PID calculation based on the outputs of the shaking state sensor (4) and the blade angle sensor (47) (48), and the amplifiers (45) (46) and valves (43) (44) 2) to control the two cylinders (35) (39). When the cylinders (35) (39) are driven and the drive rod (36) reciprocates, the rear arm (33), the drive shaft (25) and the front arm (32) pivot, and as a result, The wings (2) are forcibly rocked.

During the navigation of the high speed boat, the supporting member (1) and the wing (2) of the anti-vibration device are switched to the retracted position.

When the high-speed boat is anchored, the supporting member (1) and the wing (2) of the anti-vibration device can be switched to the operating position. Then, the control device (5) forcibly swings the wing (2) via the drive cylinders (35) (39) so that the hull (A) rolls to the minimum.

For example, the control device (5) detects the magnitude of the rolling of the hull (A), the period, etc. from the output of the shaking state sensor (4), and the wing (2) for minimizing the rolling. The swaying angle and cycle of the cylinder are calculated, and the cylinders (35) and (39) are controlled so that the blade (2) oscillates at a constant angle and at a constant cycle based on the calculation result.

FIG. 5 shows an example of swing of the damping blade. In this figure, the starboard wing is designated by the reference numeral (2), and the port side wing is designated by the reference numeral (49). Figure 5 (a) shows the hull (A) with no rolling. Fig. 5 (b) shows a state in which the hull (A) is tilted to the right due to rolling, and in this case, the right and left wings (35) (39) are set so that the hull (A) is made to have a small tilt. ) Is swung in the direction of the arrow in the figure. Figure 5 (c) shows the state where the hull (A) leans to the left due to rolling, and in this case as well, the right and left wings (35) (39) are set to reduce the lean of the hull (A). ) Is swung in the direction of the arrow in the figure.

In the above-described embodiment, the parts provided on both sides of the hull of the anti-vibration device are attached to the pedestal to be unitized, and therefore can be easily installed on an existing ship.

[0019]

[Effect of device]

 According to the ship anti-vibration device of the present invention, as described above, the sway of the hull at the time of anchoring can be greatly reduced to improve the ride comfort of passengers, even for medium- and small-sized high-speed boats. You can

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a main part of an anti-vibration device for a high-speed boat showing an embodiment of the present invention.

2 is a partially cutaway rear view of FIG. 1. FIG.

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is a hydraulic and electrical system diagram of a main part of the anti-sway device of FIG.

FIG. 5 is a schematic rear view showing a state in which the hull of the high-speed boat is rocked and the rocking wings are rocked.

[Explanation of symbols]

 (1) Wing support member (2) (49) Anti-swing wing (3) Wing drive (4) Motion control sensor (5) Wing controller (6) Starboard side (21) (22) Wing mount (35) ) (39) Wing drive hydraulic cylinder

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Yasuo Nakai 5-3-3, Nishikujo 5-chome, Konohana-ku, Osaka City Hitachi Shipbuilding Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A wing support member attached to a hull so that the position thereof can be switched between an operating position where the whole is located above the water surface and a storage position where the wing mount is submerged below the water surface, and a wing mount portion of the wing support member. An oscillating wing that is swingably attached to the wing, a wing driving device that vertically oscillates the oscillating wing with respect to a wing support member in an operating position, a sway state sensor that detects a sway state of a hull,
And a ship anti-sway device including a wing control device for controlling a wing drive device according to an output of a sway state sensor.