JPH0564099U - Ship flap rudder - Google Patents

Abstract

(57) [Abstract] [Purpose] The flap rudder interlocking mechanism is installed on the ladder stock housing side so that the mechanism can be easily taken out to the release side. To facilitate various disassembly and repair work. [Structure] A pivot pin 6 is planted on the lower surface of the rudder stock housing part 5, an arm pin 9 is planted on the flap rudder 3, and the pivot pin 6 and the arm pin 9 are connected by a single link 10 to form a link 10. A gap 11 is provided around the installation position for allowing the link 10 to be attached and detached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flap rudder for a ship, and relates to a flap rudder configuration in which the flap rudder is made to follow a turning operation of a main rudder to perform a follow-up operation, thereby increasing a turning force applied to a ship. It is a thing.

[0002]

[Prior Art]

 A plan view of the above-mentioned ship flap rudder is shown in FIG. 6. A flap rudder 3 smaller than the main rudder 2 is attached behind the main rudder 2 placed at the rear of the propeller 1. When turning the ship, if the main rudder 2 is turned left by an angle α as shown in the figure, the flap rudder 3 will be turned left by an angle β with respect to the main rudder 2 in conjunction with it. By forcing the operation, the water flow from the propeller 1 is strongly diverted in the direction of the arrow W, so that the ship turns more strongly.

As a conventional technique for automatically operating the flap rudder 3 in conjunction with the operation of the main rudder as described above, for example, Japanese Patent Publication No. 3-56959 or Japanese Unexamined Patent Publication No. 62-181999. Some are listed.

[0004]

[Problems to be solved by the device]

 Among the above-mentioned conventional techniques, Japanese Patent Publication No. 3-56959 has a compact overall structure, but a linear sliding mechanism is used in the middle of the interlocking device for the flap rudder, and the sliding surface in the mechanism is used. Since it is always exposed, there is a problem that when it is used in seawater, it is likely to cause a malfunction due to corrosion or the formation of foreign matter.

Further, since the one disclosed in Japanese Patent Laid-Open No. 62-181999 uses only the rotating slip by the link as the interlocking mechanism, the above-mentioned operation non-smoothness does not occur, but it is clear from the publication. In addition, because the attachment point of the pivot pin inserted into the link is on the hull side, the center distance between the pivot pin belonging to the hull side and the arm pin inserted into the same link but belonging to the flap side is set on the link. It is extremely difficult to accurately reproduce and match. In addition, the structure that consists of arm pins, pivot pins, and links is a place that is subject to severe wear and tear. Has a very difficult structure.

The present invention has been made in consideration of the above-mentioned problems of the prior art. When used in seawater, the sliding surface that is always exposed as in the conventional device may be corroded or adhered with foreign matter. In addition to improving the installation accuracy of each pin, simplifying the connecting mechanism, and facilitating the manufacture, the parts of the link mechanism connecting each pin and each pin are eliminated. The purpose is to facilitate the disassembly / assembly work and maintenance work.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the ship flap rudder of the present invention, a rudder stock and a rudder stock housing for accommodating the rudder stock capable of turning inside are combined, and the combination is attached to the hull. , A ship flap rudder attached to the rear of the main rudder operated via the rudder stock, in which a pivot pin is installed in the rudder stock housing in a state parallel to the rudder stock. An arm pin is planted in parallel with the rudder stock on the upper part of the flap rudder that is attached by a hinge pin, and the pivot pin and the arm pin are inserted into a common link from the same side so that they are connected to each other through the link. , The link has a clearance on the side of the free end of each of the pins that allows it to be removed from each pin. There is a a placement.

[0008]

[Action]

 According to the ship flap rudder of the present invention having the above-mentioned configuration, the pivot pin is planted in the rudder stock housing portion and serves as a fixed point. On the other hand, the hinge pin with the flap rudder attached to the rear of the main rudder turns around the rudder stock as the main rudder turns, and as a result, the distance between the pivot pin and the hinge pin changes, and the flap rudder with respect to the main rudder changes. Since the relative angle is changed, the interlocking mechanism of the flap rudder is composed only of rotational slip, and there is no linear slide part where the sliding surface is exposed.

Further, the pivot pin and the arm pin are installed at the rudder stock housing side and the flap rudder side, respectively, and both are arranged on the rudder stock housing side to improve the installation accuracy of the pins and the coupling mechanism. It is possible to simplify the process and make it easier.

Further, by selecting the installation location of each of the pins, when disassembling the link, pivot pin, arm pin, etc. which constitute the interlocking device for replacement / repair, the link of each pin is Since the arrangement is such that there is a gap that can be pulled out to the side of the free end, the link can be easily pulled out, and the subsequent work of pulling out each pin is also easily performed.

[0011]

【Example】

 An embodiment of a ship flap rudder according to the present invention will be described below with reference to the drawings.

In FIG. 1, a rudder stock 4 and a rudder stock housing part 5 for accommodating the rudder stock 4 so that the rudder stock 4 can be swung inside are integrally combined, and the combined body is behind the propeller 1 at the rear of the hull. The main rudder 2 can be turned by way of the rudder stock 4 attached to the. In the rudder stock housing part 5 supporting the rudder stock 4, a pivot pin 6 is planted in a state parallel to the rudder stock 4, that is, in a hanging direction.

A flap rudder 3 is attached to the rear of the main rudder 2 by a hinge pin 7 so that the flap rudder 3 can turn relative to the main rudder 2. A flap arm 8 extends horizontally from the upper portion of the flap rudder 3, and an arm pin 9 is planted in the same hanging direction as the pivot pin 6 near the end thereof. The pivot pin 6 and the arm pin 9 are connected by a link 10. The connection is performed by inserting the link 10 from below so that the pivot pin 6 and the arm pin 9 are inserted into the holes for each pin formed in the link 10 from the same surface side of the link 10. By assembling, they are connected via the link 10. The sliding surface between the pivot pin 6 and the arm pin 9 and the link 10 is provided with a cylindrical or spherical sliding bush or rolling bearing, respectively.

Further, a fixing means such as inserting a split pin at the end of each pin is provided so that the link 10 does not drop from the mounting location after assembly. On the side of the free ends of the pivot pin 6 and the arm pin 9, a sufficient gap 11 is arranged for pulling out the link 10 from the pin.

The operation of the flap rudder of the present invention constructed as above will be described with reference to FIGS. In FIG. 2, the pivot pin 6 is located on the port side from the center line OO of the main rudder 2 as a position on the projection view. On the other hand, the arm pin 9 is located on the starboard side opposite to the pivot pin 6 on one side. Further, as shown in FIG. 1, the pivot pin 6 is fixed near the lower surface of the rudder stock housing part 5 and is a fixed point.

From this state, when the main rudder 2 turns in the direction of the arrow P on the port side as shown in FIG. 3, the hinge pin 7 of the flap rudder 3 attached to the rear of the main rudder 2 turns the main rudder 2. At the same time, it turns around the rudder stock 4 in the direction of arrow P, and as a result, the distance between the pivot pin 6 and the hinge pin 7 changes. Therefore, the relative angle between the flap arm 8 connected to the flap rudder 3 and the link 10 changes, and as a result, the relative angle of the flap rudder 3 to the main rudder 2 changes, and the water flow from the propeller W Turn strongly in the direction of. In FIG. 3, when the main rudder 2 is turned to the left by an angle α, the flap rudder 3 is also turned to the left by an angle β with respect to the main rudder 2 in conjunction with it, so that the ship turns more strongly. The action that causes it is realized.

On the contrary, as shown in FIG. 4, when the main rudder 2 turns in the direction of the arrow Q on the starboard side, in this case, the distance between the pivot pin 6 and the hinge pin 7 changes so as to become longer. Therefore, the relative angle between the flap arm 8 connected to the flap rudder 3 and the link 10 changes in the opposite direction to the above, and as a result, the relative angle of the flap rudder 3 with respect to the main rudder 2 differs from that in FIG. The change in the direction opposite to the left and right makes it possible to strongly turn the ship toward the starboard direction.

FIG. 5 shows that with this configuration, as the turning angle α of the main rudder 2 gradually increases from 0, the total turning angle (α + β) of the main rudder 2 and the flap rudder 3 gradually increases from 0. FIG. 9 is a graph showing the relationship of the relation between 0 ° and 90 °.

In the embodiments of FIGS. 2 to 4 described above, the pivot pin 6 is eccentrically located on the port side and the arm pin 9 is eccentrically located on the starboard side. Of course, the left and right port positions are opposite. Even in the case of the relationship, the interlocking action described above is established and occurs regardless of the replacement of the unevenly distributed positions. Also, it goes without saying that the above-described action is established even when the position is on the center line without being biased to either the starboard side or the starboard side.

[0020]

[Effect of the device]

 Since the ship flap rudder of the present invention is constructed as described above, it has the following effects.

A) Since the interlocking mechanism to the flap rudder is a system consisting only of rotational sliding and a system in which a linear sliding part where the sliding surface is exposed does not occur, when used in seawater, it always operates like a conventional device. The exposed sliding surface is prevented from corroding, or the operation is not smoothed due to the adhesion of foreign matter.

(A) Since the installation positions of the pivot pin and the arm pin are the rudder stock housing side and the flap rudder side, respectively, both are located on the rudder stock housing side, the accuracy of the installation position of each pin is improved and The connection mechanism can be simplified and the production is facilitated.

C) By setting the installation location of each pin as in the above item a), and further by providing the link with a clearance allowing the removal of each pin toward the free end side, This makes it easier to disassemble and assemble the pins and the link mechanism that connects the pins, or to perform maintenance work. In particular, this configuration brings about a remarkable effect that the assembly inspection can be easily performed on the dock or by the diver.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a ship flap rudder according to the present invention.

FIG. 2 is a plan view for explaining the operation of the ship flap rudder of the present invention, showing a state in which the ship is not turning.

FIG. 3 is a plan view for explaining the operation of the ship flap rudder according to the present invention, showing a state in which the flap is turned to one side.

FIG. 4 is a plan view for explaining the operation of the ship flap rudder according to the present invention, showing a state of turning in the opposite direction of FIG.

FIG. 5 is a diagram showing the characteristics of the ship flap rudder of the present invention (the relationship between the total turning angle of the main rudder and the flap rudder and the turning angle of the main rudder).

FIG. 6 is a plan view for explaining the principle of a general ship flap rudder.

[Explanation of symbols]

 2 Main rudder 3 Flap rudder 4 Rudder stock 5 Rudder stock housing part 6 Pivot pin 7 Hinge pin 8 Flap arm 9 Arm pin 10 Link 11 Gap

Claims (1)

[Scope of utility model registration request] 1. A combination of a rudder stock and a rudder stock housing part that accommodates the rudder stock so that the rudder stock can be swung inside, and the combined body is attached to a hull and then the main rudder is operated via the rudder stock. This is a ship flap rudder that is attached to one side of the rudder stock housing. And the pivot pin and the arm pin are inserted into a common link from the same side so as to connect the two through the link, and the link is connected to the free end side of the respective pins. It is arranged with a gap that can be pulled out from the pin,
A ship flap rudder characterized by the above.