JPS58136590A - Ship equipped with vane-wheel propeller - Google Patents

Abstract

PURPOSE:To prevent rolling and pitching of a hull and control tilt of the hull not only during navigation but during stoppage by installing the fin for generating a dynamic lift on each vane of a vane-wheel propeller in the ship-bottom part and installing a fin incident angle adjusting mechanism. CONSTITUTION:Right and left vane-wheel propellers 2 in pairs in the rear ship- bottom part of a hull 1 are constituted of a rotor 2a revolved around a vertical shaft line and a plurality of vanes 3 which are extended downward and rotatably supported with its shaft onto the peripheral edge part of the rotor 2a, and each vane 3 is equipped with a fin 5 rotatably installed onto the lower edge of the vane 3 through a horizontal shaft 4. An incident angle adjusting mechanism for the fin 5 is constituted of the horizontal shaft 4, sliding member 6, and a drive control member 7. Rolling and pitching of the hull is reduced by generating a dynamic lift onto the fin 5 of each vane-wheel propeller 2. Further, the vane- wheel propeller 2 revolves without generating a thrust, through adjusting the incident angle of the vane 3, and the swing reducing effect can be obtained by the action of the fin 5, keeping the hull in stoppage.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ship equipped with a bladed propeller for propulsion on the bottom of the ship, and more particularly to a ship equipped with a bladed propeller that can prevent the ship from shaking or tilting.

In general, as means to prevent the ship from shaking, fin-type stabilizers that adjust the angle of attack of fins protruding into the water on both sides, anti-sway tanks, or gyro-type anti-sway devices are used. However, with conventional fin-type stabilizers, the rocking reduction effect cannot be performed effectively unless the ship is moving forward, and with the rocking reduction water tank and gyro-type rocking reduction device, the entire equipment is dependent on the equipment, and it is necessary to use a winged propeller. The problem is that it is not suitable for relatively small vessels such as tugboats and cable-laying vessels.

The present invention aims to solve these problems, and by attaching fins for reducing rocking to a bladed propeller, it is possible to effectively reduce the rocking and tilting of the ship with a compact structure. The purpose of the present invention is to provide a ship equipped with a wing wheel propeller that can be suppressed.

For this reason, the ship equipped with a blade wheel propeller of the present invention has a rotary body which is rotatably driven around a substantially vertical axis by a drive source inside the ship, and a rotary body that is pivotally supported on the periphery of the rotary body at the bottom of the ship. The blade wheel propeller is composed of a plurality of blades extending downward, and a fin capable of generating lift in the vertical direction is attached to the blades of the blade wheel propeller, and a mechanism for adjusting the angle of attack of the fin is attached to the blades of the blade wheel propeller. It is characterized by the fact that it was established.

Hereinafter, embodiments of the present invention will be explained with reference to the drawings.
Figures 1 to 4 show a ship equipped with a blade wheel propeller as a first embodiment of the present invention. Figure 1 is a plan view thereof, Figure 2 is a side view thereof, and Figure 3 is a ship equipped with a blade wheel propeller. Side view of propeller, 4th
The figure is a view taken along the line IV-IV in FIG. 3.

As shown in Fig. 1.2, a pair of left and right impeller propellers 2 are provided at the bottom of the rear part of the hull 1. A rotating body 2a that is rotationally driven around a nearly vertical axis by a drive source, and a plurality of (four in this embodiment) that are pivotally supported on the periphery of this rotating body 2a and extend downward. A fin 5 is rotatably attached to the lower end of the wing 3, which is composed of a wing 3 and a wing 3.

Each fin 5 is capable of generating lift in the vertical direction, and a pair of slide members 6 whose lower ends are pivotally connected to the fins 5 at the front and rear of the horizontal shaft 4 are inserted into solid inner holes of R3 and slide up and down. The angle of attack α of the fins 5 is adjusted by driving and controlling one of the slide members 6 up and down by a drive control member 7 such as a fluid pressure cylinder. In other words, the horizontal shaft 4 as a pivot axis of the fin 5, the slide member 6, and the drive control member 7 constitute a mechanism for adjusting the angle of attack of the fin 5.

The slide member 6 not only constitutes a part of the angle of attack adjustment mechanism of the fin 5, but also has the function of closing the gap between the blade 3 and the fin 5 and increasing the lift of the blade 3 and the fin 5. There is.

Since the blade wheel propeller-equipped ship of the present invention is configured as described above, if the angle of attack α of the fins 5 is constant in FIG. 3.4, the lift generated by the fins 5 will be constant upward or downward. .

As shown in FIG. 1, in ships and vessels equipped with the wheel propellers 2 on the left and right sides of the ship, the angle of attack adjustment mechanism of the fins 5 shown in FIGS. If the fins 5 of the wheel propeller 2 on the port side generate upward lift, the hull can be tilted to the right.

In addition to being able to adjust the lateral inclination of the hull in this way, it is also possible to adjust the vertical inclination of the hull by arranging the bladed propellers 2 at the front and rear of the hull 1.

Further, by generating lift in the fins 5 of each blade wheel propeller 2 so as to offset the oscillation of the ship, it is possible to prevent or reduce the oscillation of the ship.

Furthermore, since the blade wheel propeller 2 can rotate without generating thrust by adjusting the angle of attack of its blades 3, it is possible to obtain a rocking reduction effect by the action of the fins 5 while the ship remains stationary.

FIG. 5 is a plan view showing a ship equipped with a bladed propeller as a second embodiment of the present invention, and in this case, a bladed blade propeller 2 is provided on the center line of the ship. The fin 5 also has a structure similar to that described in connection with FIG. If you make it so that it generates upward lift when it turns to port,
The hull can be tilted to the right.

Therefore, in the case of this second embodiment, as in the case of the first embodiment, it is possible to obtain effects for adjusting the inclination of the hull and preventing oscillation.

As described in detail above, according to the ship equipped with a blade wheel propeller of the present invention, a fin capable of generating vertical lift is attached to the six blades of the blade wheel propeller at the bottom of the ship, and the angle of attack adjustment mechanism of the fin is installed. With its simple structure, it effectively prevents the ship from shaking and adjusts its inclination not only during navigation but also when the ship is stopped, and it can also be applied to small ships with bladed propellers. It will become.

[Brief Description of the Drawings] Figures 1 to 4 show a ship equipped with a blade wheel propeller as a first embodiment of the present invention, in which Figure 1 is a plan view thereof, Figure 2 is a side view thereof, and Figure 3 is a ship equipped with a propeller. The figure is a side view of the blade wheel propeller, FIG. 4 is a view taken along the line IV-IV in FIG. 3, and FIG. 5 is a plan view showing a ship equipped with a blade wheel propeller as a second embodiment of the present invention. A certain 01@e hull, 2...blade wheel propeller% 2a...rotating body, 3...wings, 4...horizontal axis, 5...fins, 6...sliding member, 7th race/drive control member. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 1 Figure 3 ＼＼＼ ■

Claims (1)

[Claims] A vane wheel consisting of a rotating body that is rotated around a nearly vertical axis by an internal drive source at the bottom of the ship, and a plurality of blades that are pivotally supported on the periphery of the rotating body and extend downward. The present invention is characterized in that the propeller is provided with a fin capable of generating vertical lift on the blade of the propeller, and a mechanism for adjusting the angle of attack of the fin is provided. A ship equipped with a winged propeller.