KR101808784B1 - Mechanical steering gear - Google Patents

Abstract

The purpose of the present invention is to provide a mechanical steering device configured such that a rotation angle of a tiller can be adjusted by a ring gear unit and a pinion gear, such that the rotation angle of the tiller can be more precisely adjusted, and a tiller rotating plate and a casing are provided respectively with a stop rib and a stopping protrusion, thereby being able to mechanically prevent the tiller from rotating beyond a maximum value due to a failure of a driving member or an electrical failure. The mechanical steering device comprises: the casing having a hollow cylindrical inner side, wherein a plurality of components are installed therein; the tiller installed in the casing to be able to rotate, wherein a part of an upper end of a rudder stock (RS) is fixated and installed therein; the tiller rotating plate radially protruding from an outer peripheral surface of the tiller and formed into a disk shape to fix and support the tiller; the ring gear unit installed on an upper side of an outer edge portion of the tiller rotating plate, wherein a plurality of gears are formed on an inner peripheral surface thereof; the pinion gear installed on an inner side of the ring gear unit, having a plurality of gears formed on an outer peripheral surface thereof to engage with the gears of the ring gear unit, and rotating the ring gear unit; and a driving member installed on one side of the pinion gear and rotating the same.

Description

[0001] Mechanical steering gear [0001]

Since the rotation angle of the tiller can be manipulated by the ring gear unit and the pinion gear, the rotation angle of the tiller can be manipulated more precisely. In addition, the tiller rotation plate and the casing are provided with the stop ribs The present invention relates to a mechanical steering device capable of mechanically preventing a tilter from being rotated over a maximum value due to a failure or an electrical failure of a driving member.

Generally, a steering apparatus used for a ship is a device for changing the course of a ship by controlling the direction or angle of a rudder disposed at the bottom of the ship.

Although there are various kinds of such helmets, most of the helmets used in ships are of electric hydraulic type.

In addition, the above-described steering apparatuses can be roughly classified into a Ram type and a Rotatry Vane type of a ram cylinder type.

Here, the ram-type steering apparatus includes a hydraulic cylinder in which two or four hydraulic cylinders having a ram piston inserted therein are arranged in a straight line, and a tiller connected to the ram is connected to a ram pin, (Rapson Slide Shoe).

The ram-type steering apparatus is suitable for high pressure by using a high-pressure, light-weight, and compacted hydraulic pump, and is relatively easy to check the leakage of the cylinder and replace the oil chamber as compared with the rotary vane type steering gear. And various disadvantages found in various hydraulic system technologies.

For example, the RAM-type steering apparatus requires maintenance of oil chamber performance, maintenance and replacement of hydraulic oil, management of foreign matter in oil, and an unstable hydraulic system in which heat is frequently generated due to a rise in operating oil temperature due to frequent supply and recovery of hydraulic oil I have.

However, it is difficult to center the rudder stock and the actuator due to the tight clearance between the vane and the casing of the actuator, and it is difficult to adjust the clearance considering the deformation of the rotating vane Since the oil seal performance is poor and the oil leakage amount is not constant, it is difficult to adjust the combination of the auto pilot after the installation, and the foreign matter in the oil accumulates in the bottom portion of the actuator vane due to the structure, shortening the life of the actuator chamber Since the required horsepower is large and the capacity of the hydraulic drive apparatus is large, the size of the hydraulic drive apparatus also has a disadvantage.

 A conventional hydraulic type steering apparatus is disclosed in Korean Patent Registration No. 10-0859333.

Such a conventional hydraulic type steering apparatus can easily generate a large steering force due to the nature of the hydraulic pressure, but it requires a large number of apparatuses such as piping for generating the hydraulic pressure, so that the structure is complicated, and the possibility of failure is high and maintenance is difficult .

In addition, since the conventional hydraulic type steering apparatus is operated by hydraulic pressure, it is impossible to control the steering angle accurately, and the response speed of the steering apparatus is low, so that it is impossible to change the quick steering angle in an emergency situation.

Korean Patent Publication No. 10-0859333

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the problems of the prior art as described above, and it is an object of the present invention to provide a ring gear unit and a pinion gear that can manipulate the angle of rotation of the tiller, The present invention is to provide a mechanical steering device capable of mechanically preventing a tilter from being rotated to its maximum position due to a failure or an electrical failure of a driving member by providing stopping ribs and stopping projections on the tiler rotating plate and the casing, respectively.

According to an aspect of the present invention, there is provided a mechanical steering apparatus comprising: a casing having a hollow cylindrical shape and having a plurality of parts installed therein; A tiller rotating plate installed inside the tiller to fix a portion of the upper end of the ladder stock fixedly mounted on the tiller, a tiller rotating plate radially protruding from the outer surface of the tiller, And a plurality of teeth formed on an outer circumferential surface of the ring gear unit, the gear unit being engaged with the ring gear unit, and the ring gear unit having a plurality of gear teeth formed on an outer circumferential surface of the ring gear unit, A pinion gear which is provided on one side of the pinion gear and which rotates the pinion gear, The it included, and between the rotary tiller plate and the casing a stop member to prevent this, in a case where the tiller rotation plate that is rotated by more than a predetermined angle are further provided.

Wherein the stop member includes a stop rib which is provided at an outer edge of the tiler rotary plate and protrudes by a predetermined height in a downward direction and a stop rib which protrudes from the center of the casing by a predetermined height along an inner wall surface of the casing, And a detent protrusion that restricts rotation of the tiller when one side of the detent rib is engaged when the tiller rotating plate is rotated over a predetermined angle.

A plurality of the stop ribs are formed to protrude at predetermined intervals along the outer edge of the tiller rotation plate.

A plurality of detent protrusions are formed at predetermined intervals along the circumferential direction of the inner wall surface of the casing.

The upper surface of the tiller is further provided with a tangential clock which is fixed to one side of the upper surface of the tiller and horizontally protrudes outwardly of the tiller to instantly indicate the rotation angle of the tiller, And an inclination indicating graduation portion which is indicated by a scale on the upper surface of the casing cover to be installed and which indicates the rotation angle of the other side watch is further provided.

The mechanical steering apparatus according to the present invention has the following effects.

In the present invention, since the rotation angle of the tiller can be manipulated by the ring gear unit and the pinion gear, more precise rotation angle manipulation of the tiller can be performed, and the tilter rotation plate and the casing are provided with stopping ribs and stopping projections, respectively It is possible to mechanically prevent the tiller from rotating beyond the maximum angle due to a failure or electrical failure of the driving member.

Accordingly, the installation space of the steering apparatus can be minimized as compared with the hydraulic steering apparatus. Since the hydraulic oil is not used, the installation structure for preventing oil leakage and the repair work due to leakage are not additionally generated. There is an advantage that the work efficiency is improved.

In addition, since the stop rib and the stop projection are provided to prevent excessive rotation of the tiller due to breakage or electrical failure of the driving member, it is possible to prevent the rollover of the ship and the breakage of the additional steering device, There is an effect that loss can be minimized.

1 is a perspective view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention;
2 is a front view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention;
3 is a plan view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention.
4 is a sectional view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention.
5 is a cross-sectional view showing a state in which the tiller is rotated by the ring gear unit and the pinion gear constituting the embodiment of the present invention.
6 is a bottom perspective view showing a configuration of a stop member constituting an embodiment of the present invention.
7 is a bottom view showing the configuration of a stop member constituting an embodiment of the present invention.
FIG. 8 is an enlarged perspective view showing the configuration of a timepiece clock constituting an embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a mechanical steering apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention. FIG. 2 is a front view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention. 4 is a cross-sectional view showing a configuration of a preferred embodiment of a mechanical steering apparatus according to the present invention, and Fig. 5 is a sectional view showing the configuration of a preferred embodiment of the mechanical steering apparatus according to the present invention. FIG. 6 is a bottom perspective view showing a configuration of a stop member constituting an embodiment of the present invention, and FIG. 7 is a cross-sectional view showing a state where the tilter is rotated by the ring gear unit and the pinion gear, There is shown a bottom view showing a configuration of a stop member constituting an embodiment.

1 to 7, a mechanical steering apparatus according to the present invention includes a casing 10 having a hollow cylindrical shape and having a plurality of components installed therein, A tilter 12 rotatably installed on the tilter 12 and having a portion of an upper end of the rudder stock RS fixedly mounted on the tilter 12; A ring gear unit 26 mounted on the outer edge of the tiller rotary plate 20 and having a plurality of teeth formed on an inner circumferential surface thereof, A pinion gear 30 which is installed on the inner side of the pinion gear 30 and has a plurality of teeth formed on the outer circumferential surface thereof so as to be engaged with the ring gear unit 26 and to rotate the ring gear unit 26, And the pinion gear 30 is rotated Key is made up of the driving member 40 and the like.

The casing 10 has a hollow cylindrical shape and is installed on the upper side of the rudder stock RS inside the hull. A plurality of parts are fixedly supported on the inside and the outside of the casing (10).

A tiller 12 is installed inside the casing 10. The tiller 12 has a cylindrical shape and is installed at the center of the casing 10. 4, a rudder stock RS to be described later is fixed and the rudder stock RS is rotated forward and backward at a predetermined angle in accordance with the rotation of the tiller 12.

That is, the rudder stock RS is fixed to the inside of the tiller 12, and a rudder connected to the rudder stock RS is rotated forward and reverse according to the rotation of the tiller 12, Steering is done.

A rudder stock (RS) is provided inside the tiller (12). The rudder stock (RS) has a cylindrical shape and is elongated vertically, and a part of the upper end of the rudder stock (RS) is fixed inside the tiller (12).

A key 14 is fixedly inserted between the rudder stock RS and the tiller 12 to connect the rudder stock RS and the tiller 12 to each other. The rudder stock RS is rotated according to the rotation.

4, the upper end of the rudder stock RS is protruded to the upper end of the tiller 12 and a hydraulic nut 16 is fastened to the upper outer circumferential surface of the rudder stock RS, And the tiller 12 are firmly fixed.

A tiller rotating plate 20 is provided on the outer peripheral surface of the lower end of the tiller 12. 4 or 5, the tilter rotary plate 20 has a circular plate shape and is radially protruded with respect to the central axis of the tiller 12. The tilter rotary plate 20 is integrally formed with the tiller 12 and transmits the rotational force of the ring gear unit 26 to the tiller 12.

A cutting hole 22 is formed on the upper surface of the tiller rotary plate 20. The cutting holes 22 are vertically formed on the upper surface of the tiller rotary plate 20 at regular intervals. The cutting hole 22 is formed to penetrate the tiller rotary plate 20 to reduce the weight of the tiller rotary plate 20.

A rotation protrusion 24 is formed at the rim of the tilter rotation plate 20. The rotation protrusion 24 protrudes upward and downward along the rim of the tilter rotary plate 20. [ The rotation protrusion 24 protrudes from the tilter rotation plate 20 to support a ring gear unit 26 and a stop rib 52 which will be described later.

The rotation protrusion 24 receives the rotational force of the ring gear unit 26 and transmits the rotational force to the tilter rotary plate 20.

On the upper side of the rotation projection 24, a ring gear portion 26 is fixed. The ring gear unit 26 has a circular ring shape, and a plurality of gears are formed along the inner circumferential surface. The ring gear unit 26 is welded or bolted to the upper side of the rotation protrusion 24 and fixed. The ring gear unit 26 is engaged with a pinion gear 30 to be described later to transmit the rotational force of the pinion gear 30 to the tiller rotary plate 20. [

A gap adjusting ring (28) is provided on the upper edge of the casing (10). 4, the gap adjusting ring 28 has a diameter corresponding to the outer diameter of the casing 10, and is formed into a circular ring shape. The gap adjusting ring 28 is provided between the casing 10 and a casing cover 60 to be described later. The gap adjusting ring 28 serves to adjust the distance between the upper end of the casing 10 and the casing cover 60 according to the installation height of the ring gear unit 26.

A bearing (not shown) is provided between the inner circumferential surface of the gap adjusting ring 28 and the outer circumferential surface of the ring gear portion 26 to guide the rotation of the ring gear portion 26 during rotation of the ring gear portion 26 .

A pinion gear (30) is provided inside the ring gear portion (26). The pinion gear 30 is a general pinion gear, and a detailed description thereof will be omitted. The pinion gears 30 are installed to be engaged with the inner ends of the ring gear unit 26, respectively. The pinion gear 30 is engaged with an inner gear of the ring gear unit 26 to rotate the ring gear unit 26.

A driving member (40) is provided on the pinion gear (30). The driving member 40 includes a speed reducer 42, a torque limiter 44, a driving motor 46, and the like. The speed reducer 42, the torque limit 44, and the driving motor 46 of the driving member 40 are of a general construction and will not be described in detail. The driving member 40 is coaxial with the gear shaft of the pinion gear 30 to rotate the pinion gear 30.

That is, the pinion gear 30 is rotated by the driving member 40, and the ring gear unit 26 is rotated in accordance with the rotation of the pinion gear 30. The ring gear unit 26, As the rotary plate 20 is rotated, the rudder stock RS mounted on the tiller 12 is rotated forward and backward.

A stop member (50) is provided between the tiler rotary plate (20) and the casing (10). The stop member 50 is composed of a stop rib 52 and a detent projection 54 or the like.

A stopping rib 52 is provided at a lower portion of the rotation protrusion 24. 6 to 7, the stop ribs 52 are provided at the lower end of the ring-shaped rotary protrusion 24 in a rectangular parallelepiped shape having an arc-shaped inner peripheral surface. The stop ribs 52 are bolted to the rotation protrusions 24 so that they can be easily replaced and repaired when the stop ribs 52 are broken.

One or more than one stop ribs 52 may be provided at the lower end of the rotation protrusion 24, and when the plurality of stop ribs 52 are provided, the stop ribs 52 may be symmetrical with each other. The number of the stop ribs 52 varies depending on the maximum rotation angle of the tiller 12.

For example, when the maximum rotation angle of the tiller 12 is 90 degrees or less, two stop ribs 52 are provided to correspond to each other. When the maximum rotation angle of the tiller 12 is 45 degrees or less, The stop ribs 52 are arranged at regular intervals of 90 degrees to limit the maximum rotation angle of the tiller 12.

That is, the detent rib 52 is rotated along the inner circumferential surface of the casing 10 in accordance with the rotation of the ring gear unit 26 and is caught by a detent projection 54 to be described later, The angle is mechanically limited.

On the inner circumferential surface of the casing (10), a detent projection (54) is provided. 6 or 7, the detent protrusions 54 are provided at regular intervals in the radial direction along the inner circumferential surface of the casing 10. [ The detent projection 54 has a rectangular parallelepiped shape and protrudes in the direction of the center axis of the casing 10. [ The stopping projection 54 is engaged with the stopping rib 52 when the stopping rib 52 is rotated over a predetermined angle in accordance with the rotation of the tiller rotating plate 20, It limits the angle.

A casing cover (60) is provided above the casing (10). The casing cover (60) has a disk shape and serves to close the upper opening of the casing (10). A tiler mounting hole 62 is formed at the center of the casing cover 60 so that the upper end of the tilter 12 is exposed outside the center of the upper surface of the casing cover 60 when the casing cover 60 is mounted. Respectively.

FIG. 8 is an enlarged perspective view showing the configuration of a timepiece watch constituting an embodiment of the present invention.

As shown in FIG. 8, a tilting clock 64 is provided above the tilter 12. The touch pad 64 is composed of a touch pad 66 and an angled finger 68. As shown in FIG. 8, the cornering body 66 has a block shape and is fixed to the upper surface of the tiller 12 on the outer side. The tangential body 66 is rotated in the circumferential direction in accordance with the rotation of the tiller 12 to move the tangential needle 68 in the circumferential direction according to the rotation of the tiller 12 .

When the tilter 12 is rotated at a predetermined angle or more, the stopping sensor body 72 is brought into close contact with the stopping sensor member 72 so that the stopping ribs 52 are engaged with the stopping protrusions 54 And simultaneously notifies the outside of the rotation angle of the tiller 12 before being contacted.

A needle 68 is provided on the upper side of the cornering body 66. The above-mentioned other land needles 68 are general steering angle indicating needles, and a detailed description thereof will be omitted. One end of the other land needles 68 is fixed to the center of the upper surface of the landing body 66 and the other end of the land needles 68 is installed to protrude toward the inclination indicating graduation 70 to be described later. The other land needles 68 are rotated at the same angle along the rotation of the tiller 12.

On the upper surface of the casing cover (60), an indicating angle indicator (70) is provided. The inclination indicator scale 70 has an arc shape and is provided at an end of the needle point 68. The inclination indicating graduation unit 70 includes a plurality of graduated goniometers having a predetermined angle and displays the angle of the tiller 12 pointing to the different land needles 68 so that the operator can visually confirm the angle of the tiller 12 .

A stop sensor member 72 is provided on the upper portion of the casing cover 60. The stop sensor member 72 is a general contact type sensor, and a detailed description thereof will be omitted. The stop sensor members 72 are installed at regular intervals along the rotating direction of the tiller 12. [ The stop sensor member 72 senses the rotation of the touch pad body 72 when the touch pad body 66 is rotated over a predetermined angle and contacts the stop sensor member 72 and transmits a detection signal to the control unit.

That is, the mounting position of the stop sensor member 72 is provided immediately before the stop ribs 52 and the stop protrusions 54 come into contact with each other, so that the collision between the stop ribs 52 and the stop protrusions 54 And notifies the fact that the tilter 12 is close to the maximum rotation angle.

On the upper surface of the casing cover (60), a tilter angle sensing member (80) is provided. The tilter angle sensing member 80 includes a control main body 82, a controller (not shown), a rotation angle sensing motor (not shown), a tilting rod 84, and a tiler fixing rod 86.

The control main body 82 has a hollow hexahedron shape and is installed on the upper side of the casing cover 60. A controller (not shown), a rotation angle detecting motor (not shown), and the like are installed and fixed inside the control body 82.

A controller is installed in the control main body 82. The controller is connected to a rotation angle sensing motor to be described later, digitizes the rotation angle of the tiller 12, which is angled by the rotation angle sensing motor, and transmits the rotation angle to the control unit of the ship.

A rotation angle detecting motor is installed inside the control main body 82. An encoder is installed inside the rotation angle sensing motor to sense the rotation angle of the rotation axis.

A rotating rod (84) is provided on the rotating shaft of the rotating angle detecting motor. The tilting rod 84 has a cylindrical shape and is formed long in the left and right direction. One end of the tilting rod 84 is connected to the rotation axis of the rotation angle sensing motor and the other end is connected to a tilter fixing rod 86, which will be described later. The tilting rod 84 is rotated up and down in accordance with the back-and-forth movement of the tilter holding rod 86 to be described later to rotate the rotating shaft.

A tiller fixing rod 86 is provided at an end of the tilting rod 84. 8, the tilter fixing rod 86 has a cylindrical shape and is formed long in the vertical direction. One end of the tiler fixing rod 86 is installed at the end of the tilting rod 84 and the other end is fixed to the upper surface of the tilter 12. The tilter fixing rod 86 is moved back and forth in the circumferential direction in accordance with the rotation of the tiller 12 to rotate the tilting rod in the forward and backward directions.

That is, as the tiller 12 is rotated while the tiller fixing rod 86 is fixed to both ends of the upper surface of the tiller 12, the tiller fixing rod 86 is moved in the circumferential direction, The rotating rod 84 connected to the fixed rod 86 is rotated forward and backward to rotate the rotation axis of the rotation angle sensing motor to sense the rotation angle of the tiller 12. [

Hereinafter, the operation of the mechanical steering apparatus according to the present invention will be described with reference to FIGS. 1 to 8. FIG.

First, the driving member 40 is operated to operate the steering angle of the ship. The driving member 40 is installed on both sides of the upper end of the casing 10 and is connected to a pinion gear 30 provided inside the casing 10.

When the driving member 40 is operated to rotate the pinion gear 30, the ring gear unit 26 engaged with the outer gear of the pinion gear 30 is rotated.

The tiler rotary plate 20 fixed to the ring gear unit 26 is rotated as the ring gear unit 26 is rotated and the rudder stock RS is rotated by the rotation of the tilter 12.

That is, since the rotational angle of the tiller 12 is manipulated by the gear engagement between the pinion gear 30 and the ring gear unit 26, the rotation angle of the tiller 12 can be more accurately and precisely manipulated.

A stopping rib 52 is provided under the tilter rotating plate 20 so that when the tilter 12 is rotated at a predetermined angle or more, the stopping rib 52 is inserted into the inner peripheral surface of the casing 10 It is mechanically prevented that the tilter 12 is pivoted by the protruding detent projection 54 and rotated beyond a predetermined angle.

In other words, in order to prevent the tiller 12 from deviating from the maximum steering angle when the driving member 40 is damaged or an electrical failure occurs, A stop rib 52 and the detent projection 54 are provided.

At the upper end of the tiller 12, a tripod watch 64 is installed. The timepiece clock 64 is fixed to the upper edge of the tiller 12 and rotated at the same angle as the tiller 12 rotates.

An angular display scale unit 70 is provided on the end of the other side watch 64, that is, on the upper surface of the casing cover 60 to allow the operator to visually check the rotation angle of the other side watch 64 through a scale .

That is, the turning point watch 64 is installed at the upper end of the tiller 12 to instantly display the turning angle of the tiller 12, and also minimizes the configuration of the apparatus for displaying the turning angle of the turning angle So that it is possible to display the rotation angle of the steering angle more precisely.

The scope of the present invention is not limited to the embodiments described above, and many other modifications based on the present invention will be possible to those skilled in the art within the scope of the present invention.

10. Casing 12. Tiller
14. Key 20. Tiller rotation plate
26. Ring gear unit 30. Pinion gear
40. Drive member 50. Stop member
52. stop rib 54. detent projection
60. Casing cover 64. Watch on all sides

Claims (5)

A casing 10 having a hollow cylindrical shape and provided with a plurality of parts therein;
A tiller 12 rotatably installed in the casing 10 and having a portion of the upper end of the rudder stock RS fixed therein;
A tiller rotating plate 20 protruding radially from the outer circumferential surface of the tiller 12 and having a disk shape and fixing the tiller 12;
A ring gear unit (26) installed on an outer edge of the tiler rotary plate (20) and having a plurality of teeth formed on an inner circumferential surface thereof;
A pinion gear (30) provided inside the ring gear unit (26) and having a plurality of gears formed on an outer circumferential surface thereof, being engaged with the ring gear unit (26) and rotating the ring gear unit (26);
And a driving member (40) installed on one side of the pinion gear (30) and rotating the pinion gear (30);
Further comprising a stop member (50) provided between the tiler rotary plate (20) and the casing (10) to prevent the tilr rotary plate (20) from rotating when the tiler rotary plate (20)
The stop member (50)
A stopping rib 52 provided at an outer edge of the tiller rotary plate 20 and protruding downward by a predetermined height;
The tilter 50 is formed to protrude from the center of the casing 10 along the inner wall surface of the casing 10 by a predetermined height. When the tilter rotary plate 20 is rotated at a predetermined angle or more, And a stopping projection (54) which is engaged to limit the rotation of the tiller (12). delete 2. The apparatus according to claim 1, wherein the stop rib (52)
Wherein a plurality of projections are formed at predetermined intervals along an outer edge of the tiller rotary plate (20). 2. The apparatus according to claim 1, wherein the detent projection (54)
Wherein a plurality of projections are formed at predetermined intervals along the circumferential direction of the inner wall surface of the casing (10). [2] The apparatus according to claim 1, wherein the upper surface of the tiller (12)
The watch further includes a timing watch 64 fixed to one side of the upper surface of the tiller 12 and projecting horizontally to the outside of the tiller 12 to instantly indicate the rotation angle of the tiller 12,
The apparatus according to the present invention further includes an indication indicator unit 70 indicated by a scale on the upper surface of the casing cover 60 installed on the upper surface of the casing 10 to indicate the angle of rotation of the cross- Mechanical steering system.

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