KR20020001926A - Slide-tension link system for flap rudder - Google Patents

Abstract

PURPOSE: A device for driving a flap of a ship rubber horn is provided to rotate the flap according to rotation of main rubber horn and to maintain a state of displacement angle. CONSTITUTION: A device for driving a flap in a ship rubber horn comprises a sliding bar(1) fixed on an upper portion of the flap(100); a sliding block(2) sliding according to the sliding bar; first and second lifting eyes(3,4) formed on both ends of the sliding block; first and second tension rods(5,6) separately connected to ends of the first and second lifting eyes; third and fourth lifting eyes(7,8) connected to the other ends of the first and second tension rods; a support(9) fixing the main rubber horn on an upper portion of the flap by a connecting hinge(101); a block lower portion(21) inserting the sliding bar; and a block upper portion(22) installing the first and second lifting eyes. Thereby, the device for driving the flap in the ship rubber horn rotates the flap according to rotation of main rubber horn.

Description

Auxiliary rudder drive system for ship rudders {Slide-tension link system for flap rudder}

The present invention relates to an auxiliary rudder driving device for a ship rudder, wherein the auxiliary rudder can rotate about two times the angle of rotation of the main rudder with respect to the longitudinal direction of the ship without supplying additional driving force during rotation of the main rudder. It relates to the auxiliary rudder drive device.

The conventional auxiliary drive device is a steel plate structure (500, hereinafter referred to as "SKEG") is attached to the stern, the pivot 501 is installed on one side of the SKEG 500, the pivot 501 A sliding rod 502 having a rotational center is installed, and at the same time, the cylinder 503 is fixed and installed on the upper part of the auxiliary rudder so that the sliding rod 502 is inserted therein and slides. The rotation angle of the assist rudder is adjusted by the 502 and the cylinder 503.

That is, the main rudder and the auxiliary rudder are connected by a connecting hinge, and one side of the sliding rod rotating about the pivot installed in the SKEG is inserted into the cylinder fixedly installed on the upper rudder, so that the auxiliary rudder also moves circumferentially when the main rudder rotates. By the cylinder, the sliding rod is also rotated in the same direction as the rotation direction of the main rudder around the pivot. At this time, the main rudder rotates around the main axis of rotation, the sliding rod rotates around the pivot, so that the cylinder installed on the upper side of the assist rudder rotates while sliding along the sliding rod rotating around the pivot when the main rudder rotates. . In other words, the main rudder and the auxiliary rudder were to produce a difference in the rotation angle by different rotation centers.

However, the conventional auxiliary drive device as described above has a sliding link structure in which a sliding rod whose rotation center is centered on the SKEG of the stern in the cylinder mounted on the upper side of the auxiliary flap performs a sliding action, so that a separate SKEG is provided at the stern. It is difficult to use in the structure of the rudder, which is difficult to install SKEG, which has limited the scope of application. In addition, a separate SKEG must be installed at the stern, thereby increasing costs, increasing workload, and reducing work efficiency. In addition, the sliding rod has a number of problems, such as the disadvantage of the structural side to secure the shear stiffness.

The present invention has been made in consideration of the above problems, and its object is that the auxiliary rudder is proportionally interlocked when the angular rotation of the main rudder is rotated by a simple structure, and maintains the displacement angle state, and the auxiliary rudder of the ship is applicable to various rudders. It is to provide another driving device.

The present invention is directed to a subsidiary rudder driving device of the ship rudder connected and installed by the main rudder and the auxiliary rudder; The auxiliary drive device includes a sliding bar fixed and installed in the longitudinal direction at the upper part of the auxiliary steering wheel by a support, a sliding block sliding along the sliding bar, and first and second lifting eyes formed at both upper ends of the sliding block; A first tension rod hinged to one end of the first lifting eye, a second tension rod hinged to one side of the second lifting eye, and hinged to the other side of the first tension rod and connected to the first and second ones; A third lifting eye fixed to and installed on the hull such that the middle portions of the tension rods cross each other; and a fourth lifting eye connected to the other side of the second tension rod and fixed and installed on the hull such that the intermediate portions of the first and second tension rods cross each other. It is to provide an auxiliary rudder drive device for a ship rudder including a lifting eye.

1 is an exemplary view showing an operating state according to the present invention

Figure 2 is an illustration of one side of the present invention

3 is an exemplary view showing a conventional configuration

* Explanation of symbols for the main parts of the drawings

(1): sliding bar (2): sliding block

(3): first lifting eye (4): second lifting eye

(5): first tension rod (6): second tension rod

(7): third lifting eye (8): fourth lifting eye

(9): Support (21): Lower block

(22): Upper Block (100): Assault Strike

(101): connecting hinge (200): main rudder

(201): rudder bearing (300): hull

1 is an exemplary view showing an operating state according to the present invention, Figure 2 is an illustration of one side of the present invention, the present invention is a sliding bar (1) fixed and installed on the upper part of the auxiliary rudder (100) and And a sliding block 2 sliding along the sliding bar 1, first and second lifting eyes 3 and 4 formed at both ends of the sliding block 2, and the first and second lifting eyes. First and second tension rods 5 and 6 having one end connected to the eye 3 and 4, and third and fourth lifting eyes connected to the other end of the first and second tension rods 5 and 6. It consists of (7,8).

The sliding bar 1 is fixed and installed in the longitudinal direction on the upper part of the auxiliary rudder 100 connected by the main rudder 200 and the connecting hinge 101, both ends are fixed and installed by the support 9. do.

The sliding block 2 is slid along the sliding bar 1 between the support 9 and the support 9 so that a bushing (not shown) is built into the inner surface and the sliding bar 1 is slidable. The block lower part 21 inserted and penetrated inside, and the block upper part 22 which are located in the upper part of the said lower block part 21, and are provided with the 1st and 2nd lifting eyes 3 and 4 are provided.

The first and second lifting eyes 3 and 4 have one side of the first and second tension rods 5 and 6 inserted therein, respectively, and have different heights at both ends of the upper part 22 of the sliding block 2. It is equipped with a cylindrical bushing and a plain bearing (not shown).

The third and fourth lifting eyes 7 and 8 are respectively provided with the other ends of the first and second tension rods 5 and 6 inserted into and fastened to the first and second lifting eyes 3 and 4, respectively. The hull 300 has different heights and is fixed and installed by welding, and a cylindrical bushing and a planar bearing (not shown) are incorporated.

The first and second tension rods 5 and 6 connect the first and second lifting eyes 3 and 4 and the third and fourth lifting eyes 7, 8 and both sides of the first tension rod 5. The ends are connected to the first lifting eye 3 and the third lifting eye 7, and the second tension rod 6 is connected to both the second lifting eye 4 and the fourth lifting eye 8 at both ends. It is.

At this time, both ends of the first and second tension rods 5 and 6 are coupled by the first, second, third and fourth lifting eyes 3, 4, 7 and 8 and the hinge bolts / nuts to be rotatable. The first lifting eye 3 and the third lifting eye 7 to which the first tension rod 5 is connected have the same height, and the second lifting eye 4 to which the second tension rod 6 is connected. And the fourth lifting eye 8 also have the same height. That is, the first and second tension rods 5 and 6 have different heights and are installed such that the planes alternate with each other to form an '×' shape.

In the present invention configured as described above, since the main rudder 200 and the auxiliary rudder 100 are connected to each other by the connecting hinge 101, the rotational force of the rudder generated in the steering gear is controlled through the rudder stock (rudder stock). When transmitted to the main rudder 200, the main rudder 200 rotates the rudder bearing 201 by the angle indicated by the axis, and the entire auxiliary rudder 100 is the same as the main rudder 100 by the rotation of the main rudder 200. It moves circumferentially in the direction. At this time, the first and second lifting eyes 3 and 4 of the sliding block 2 located above the assisting stroke 100 and the third and fourth lifting eyes 7 and 8 of the hull 300 are first, Since the two tension rods 5 and 6 are connected to each other, the first lifting eye 3 of the sliding block 2 is moved along the rotation radius of the first tension rod 5, The second lifting eye 4 is moved along the rotation radius of the second tension rod 6, and the sliding blocks 2 provided with the first and second lifting eyes 3 and 4 are installed on the upper part of the auxiliary rudder 100. It is slid along the sliding bar 1.

That is, as shown in FIG. 1, when the main rudder 200 is rotated, the compressive force acts on the first tension rod 5 and the tension force acts on the second tension rod 6. Auxiliary rudder 100 is rotated about the connecting hinge 101 about the central axis, the angular displacement difference according to the dimensions and positional characteristics of the first and second tension rods (5,6) to the auxiliary block (100) Sliding in the longitudinal direction.

When the sliding block 2 is slid in this way, since the auxiliary steering wheel 100 rotates about the connecting hinge 101, the rotation angle of the main rudder 200 and the rotation angle of the auxiliary steering wheel 100 are different from each other. The rotation angle of the auxiliary rudder 100 is rotated at almost twice the angle of rotation of the main rudder 200.

That is, due to the operation principle of the first and second tension rods 5 and 6 rotated around the fixed point, the angular displacement of the rudder horn of the main rudder 200 is connected to the auxiliary rudder. The auxiliary rudder 100 is interlocked and rotated by the first tension rod 5 as shown in FIG. 1 around the hinge 101. At this time, the second tension rod 6 receives a breaking or bending force, and the sliding block 2 slides the displacement difference of the rotational movement of the first and second tension rods 5 and 6 by 1/2 of the displacement difference. By eliminating the process, the operation of the first and second tension rods 5 and 6 is not suppressed, and the angular displacement behavior of the auxiliary rudder 100 becomes possible.

In addition, when the main rudder 200 stops rotating, the auxiliary rudder 100 also stops interlocking, and the water flow force continues to act on the auxiliary rudder 100 even in this stopped state. The water flow force tries to rotate the auxiliary stroke 100 and the sliding block 2 in the opposite direction, and causes displacement while applying tension to one rod and compression to one rod, but the first and second tension rods 5 6 is connected to the third and fourth lifting eyes 7 and 8 fixed to and installed on the hull, and thus maintains the current state under stress.

That is, the assisting force is received by the water flow force at any angle of the rudder, which is the shear stress on the sliding bar 1 and the support, the compression and tension on the sliding block 2, and the tension on the first and second tension rods. And the compressive stress is maintained to maintain the state without the sliding displacement of the sliding block (2).

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention rotates the auxiliary rudder at approximately twice the angle of the main rudder with respect to the forward direction of the ship, and thus has a better turning performance than the existing rudder, and reduces the size of the rudder even by the same performance, thereby reducing cost and weight. There are many effects, such as the expected increase in ship speed due to reduced rudder resistance.

Claims (2)

In the auxiliary rudder drive device of the ship rudder, the main rudder and the auxiliary rudder connected and installed by the connecting hinge; The assisting drive device includes first and second lifting eyes formed at both upper and lower ends of the auxiliary steering; A first tension rod having one side end hinged to the first lifting eye, A second tension rod hingedly connected to one end of the second lifting eye, A third lifting eye which is hinged to the other side of the first tension rod and fixed to and installed on the hull such that the intermediate portions of the first and second tension rods cross each other; And a fourth lifting eye hinged to the other side of the second tension rod and fixed to and installed on the hull such that the intermediate portions of the first and second tension rods cross each other. The method of claim 1; The first, second, third, and fourth lifting eyes of the rudder drive device, characterized in that the cylindrical bushing and the planar bearing is built-in.