KR101892437B1 - Steering device for ship - Google Patents

Abstract

One embodiment of the present invention relates to a steering apparatus for a ship. According to one embodiment of the present invention, an actuator unit and a working oil control unit are horizontally disposed on the upper range of a support plate, which is a structure installed in the ship, to be spaced apart from each other. Discharge pumps (700) are distributed on both longitudinal sides of a ram (200) coupled to a hydraulic cylinder (110, 120) to be spaced apart from each other and are disposed on the upper side of the hydraulic cylinder, such that a separation distance among components of the actuator unit and the working oil control unit is secured. A space is secured through simplification in a connection structure of a hydraulic line and a pipe connected to each component. Moreover, a fan cooler (900) is installed in the space to efficiently lower a temperature rise of working oil inside a direction control valve (600) by operation of the fan cooler and thus stop of a process caused by the temperature rise of the working oil is prevented.

Description

{STEERING DEVICE FOR SHIP}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering apparatus for a marine vessel, and more particularly to a marine steering apparatus for a marine steering apparatus that does not have a problem of a narrow space due to a complicated installation structure of hydraulic lines, pipes, oil tanks, .

Unless otherwise indicated herein, the contents set forth in this section are not prior art to the claims of this application and are not to be construed as prior art to be included in this section.

BACKGROUND ART [0002] In general, a ship according to the prior art has a steering gear including a casting device or an auxiliary steering device for imparting a rotational force or a turning force to a rudder stock using a hydraulic driving device.

Here, the casting and other apparatuses are rudder actuators necessary for effectively driving the rudder in order to steer the ship in a sailing state, a power unit for the helm, and a device for imparting rotational force to the rudder stock such as a tiller or Quadrant).

Here, the auxiliary steering apparatus is a device necessary when the casting other apparatus is damaged, and can be installed separately from the portion of the casting other apparatus.

The conventional types of steering gear include a rotary cylinder type rotary valve type (RV type) and a rapson sliding type (RS type: Rapson-Slide type).

It is difficult to center the rudder stock and actuator due to the tight clearance between the vane and the casing of the actuator, but it is difficult to adjust the clearance considering the deformation of the rotating vane. It is difficult to adjust the combination of the auto pilot after the installation because the oil seal performance is poor and the oil leakage amount is not constant. Therefore, the foreign substances in the oil accumulate in the bottom portion of the actuator vane, Since the horsepower is large and the capacity of the hydraulic drive apparatus is large, the size of the hydraulic drive apparatus also has a great disadvantage.

The Rapson sliding type steering gear 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. It is not free from various disadvantages found in all hydraulic system technology.

For example, the Rapson sliding type steering system requires not only maintenance of oil chamber performance, maintenance and replacement of hydraulic oil, management of foreign matter in oil, but also unstable hydraulic system in which heat is frequently generated due to frequent supply and recovery of hydraulic oil, I have.

On the other hand, the mechanism structure of the Rapson sliding type steering hood itself has a crosshead fork / arm member corresponding to a tiller, four cylinders corresponding to the actuator, and two RAMs.

As shown in FIG. 1, the twin actuators for a steering apparatus according to the present invention include a first actuator portion (upper side in the figure) and a lower actuator portion (The lower side of the drawing) of the second actuator.

At this time, the first actuator unit includes first and second hydraulic cylinders 1 and 2 arranged to face each other while maintaining a spacing therebetween, and first and second hydraulic cylinders 1 and 2, And has a first ram (5) coupled thereto.

The second actuator unit also has the second ram 6 and the third and fourth hydraulic cylinders 3 and 4 disposed in the same manner as described above and the second ram 6 is connected to the first ram 5, So that it can be linearly moved in the opposite direction.

The first to fourth hydraulic cylinders 1, 2, 3 and 4 of the first and second actuator portions are supported by a hull through a cylinder bracket (not shown), and the vertical power transmission pins 5a and 6a Are installed to protrude from the center of each of the first ram 5 and the second ram 6, respectively.

Both ends of a crosshead fork / arm member 7 are fastened to the vertical power transmission pins 5a and 6a. The crosshead fork / 2 rotationally move the rectilinear motion of the ram 6 to rotate and finally rotate the rudder stock 8 coupled to the center of the crosshead fork / arm 7.

The twin actuator for steering apparatus according to the prior art is capable of pivoting the crosshead fork / arm portion 7 or the rudder stock 8 toward the starboard or the port side in accordance with the provisions of the classification or SOLAS.

To this end, the hydraulic drive apparatus supplies hydraulic pressure to a pair of first and second cylinders 1 and 3 arranged diagonally to generate a linear motion corresponding to the forward stroke A, At the same time, the hydraulic pressure is recovered from the pair of second cylinders 2 and the fourth cylinder 4 arranged in the diagonal direction on the opposite side, and linear motion of the backward movement is generated.

However, since the conventional twin actuator for a steering apparatus as described above is a hydraulic driving apparatus, it has various disadvantages found in various hydraulic system technologies. Among them, the operating oil is unnecessarily pressurized at a relatively large flow rate irrespective of the turning force, So that a relatively large amount of heat is generated in the oil tank, which adversely affects the hydraulic system, causing problems in normal system operation and leading to a stoppage.

In addition, the twin actuator for the steering apparatus is required to have a relatively large-sized hydraulic driving apparatus and various hydraulic pressure supply systems, and also requires a separate hydraulic control unit requiring analog control, thus complicating the system configuration.

Therefore, twin actuators for steering devices are complicated in structure due to complicated hydraulic lines and piping, multiple solenoid valves, pumps, large-capacity oil tanks, and analog sensors, which are difficult to maintain and repair due to their complicated configuration And the risk of contamination and fire when the operating oil leaks.

1. Korean Registered Patent No. 10-0429068 (Apr. 14, 2004)

2. Korean Registered Patent No. 10-0859333 (September 12, 2008)

3. Korean Patent No. 10-1334523 (November 22, 2013)

It is possible to efficiently lower the temperature of the hydraulic oil and solve problems such as stoppage of the process due to heat generation of the conventional twin actuator hydraulic system for a steering device, reduction of the service life of hydraulic fluid, To provide a marine steering apparatus.

It is possible to reduce the manufacturing cost by optimally arranging the hydraulic lines and piping, the oil tanks, the cylinders, and the pumps, and to solve the gap narrowing problem, thereby facilitating maintenance and repair, And a risk of fire are easily handled.

The helmet for a ship according to the embodiment includes hydraulic cylinders 110 and 120 which are arranged to face each other while maintaining a spacing therebetween and in which both ends of the ram are inserted and coupled so as to linearly move the ram 200, A power transmission pin 210 protruding from the power transmission pin 210 and transmitting the right and left movement of the ram due to the operation of the hydraulic cylinder; An actuator unit 1000 including a rotating tiller 300 coupled to the center of the tiller and a rudder stock 310 coupled to the center of the tiller and transfer pipes 410 and 420 connected to the hydraulic cylinders of the actuator unit for transferring the hydraulic oil, , And is connected to each of the above-mentioned conveying pipes to eject the operating oil when a high pressure is applied which can cause the conveying pipe or the hydraulic cylinder to rupture A direction control valve (600) connected to the transfer pipe and regulating a flow of the hydraulic oil to the transfer pipe; and a control valve A hydraulic system including a discharge pump 700 for discharging hydraulic fluid and a hydraulic oil control unit 2000 including a servo motor 800 capable of rotating and bi-directionally rotating in response to a voltage input to the discharge pump, The actuator portion and the hydraulic oil control portion may be arranged in the upper range of the support plate, which is a structure provided on the ship, so that a narrow space according to the installation structure of the actuator unit 1000 and the hydraulic oil control unit 2000 is not formed, And the discharge pump 700 is disposed at one end in the longitudinal direction of the ram 200 and at the other end The hydraulic cylinders 110 and 120 are disposed on both sides of the ram 200 in a longitudinal direction of the ram 200 and are disposed on the upper side of the hydraulic cylinder, It is possible to secure a space by securing a separation distance between the respective components and simplifying a hydraulic line and a piping connection structure connected to each component and by providing a fan cooler 900 in the space, The temperature rise of the working oil in the working fluid can be lowered more effectively, thereby preventing the process from stopping due to the temperature rise of the working fluid.

According to an embodiment of the present invention, the discharge pump is horizontally spaced apart from one end of the one end in the longitudinal direction and the other end selected from the other end of the ram to which the hydraulic cylinder is coupled, It is possible.

According to the embodiment, the discharge pump is located above the hydraulic cylinder.

The marine steering apparatus as described above can effectively lower the temperature of the operating oil and thereby stop the process due to the generation of heat in the conventional twin actuator hydraulic system for a steering apparatus which is a hydraulic driving apparatus and shorten the life of the hydraulic fluid, And the like, are solved.

It is possible to reduce the manufacturing cost by optimally arranging the hydraulic lines and piping, the oil tanks, the cylinders, and the pumps, and to solve the gap narrowing problem, thereby facilitating maintenance and repair, And the danger of fire can be easily coped with.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
2 is a schematic view for explaining a marine steering apparatus of the present disclosure;
3 is a view for explaining a discharge pump of a general marine steering apparatus;
4 is a view for explaining a discharge pump of a marine helm of the present disclosure;
5 is a view for explaining a fan cooler of a marine helm of the present disclosure;

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like numbers refer to like elements throughout.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

FIG. 2 is a schematic view for explaining a helm ship of the present invention, FIG. 3 is a view for explaining a discharge pump of a general helm steering apparatus, FIG. 4 is a view for explaining a discharge pump of a helm- 5 is a view for explaining the fan cooler of the marine steering apparatus of the present disclosure.

2 to 4, a marine steering apparatus according to an embodiment of the present invention is arranged so as to be opposed to each other while maintaining a spacing therebetween, and both ends of the ram 200 are inserted And a power transmission pin (120) protruding vertically from the center of the ram (200) and transmitting the right and left movement of the ram (200) due to the operation of the hydraulic cylinders A tiller 300 coupled to the power transmission pin 210 to rotate the ram 200 to transmit the left and right motions of the ram 200 to the power transmission pin 210, An actuator unit 1000 including a rudder stock 310 coupled to the center of the actuator unit 1000 and transfer tubes 410 and 420 connected to the hydraulic cylinders of the actuator unit 1000 to transfer hydraulic fluid, And is connected to the pipes 410 and 420, A safety valve 510 or 520 for relieving pressure by ejecting hydraulic fluid when a high pressure is applied to cause the pipes 410 and 420 or the hydraulic cylinders 110 and 120 to be ruptured; A direction control valve 600 for controlling the flow of the hydraulic oil to the hydraulic cylinders 410 and 420 and a discharge pump 700 for discharging the hydraulic oil in the directional control valve 600 or the hydraulic oil in the directional control valve 600, And a hydraulic control unit 2000 including a servomotor 800 that provides a driving force to the discharge pump 700 and is capable of rotational speed control and bi-directional rotation according to input voltage.

Further, in the case of the transfer piping 410, 420, when the pressure in the transfer piping 410, 420 is high enough to cause the breakage of the transfer piping 410, 420 or the hydraulic cylinders 110, 120, The safety valves 510 and 520 are connected to each other to discharge pressure and to discharge the hydraulic oil to the spouting oil transfer pipe 530 and the spouting oil transfer pipe 530 An oil tank 540 connected to the oil tank 540 and the discharge pump 700 to discharge the operating fluid stored in the oil tank 540 to the discharge pump 700, And further includes an oil feed pipe 550 to prevent the loss of the operating oil ejected.

In the marine steering apparatus of the present disclosure as described above, hydraulic cylinders 110 and 120 having inner circumferential surfaces capable of inserting the ram 200 therein are respectively coupled to both ends of the ram 200. Hydraulic cylinders 110 And 120 are supplied or discharged from the transfer pipes 410 and 420, respectively. That is, when the hydraulic oil in the left and right hydraulic cylinders 110 and 120 is discharged from the hydraulic cylinders 110 and 120 at both ends and the hydraulic oil is supplied into the hydraulic cylinders 110 and 120, The power transmission pin 210 protruding vertically at the center of the ram 200 also moves linearly to the left.

Accordingly, the tiler 300 coupled to the power transmission pin 210 of the ram 200 converts the linear motion of the ram into rotational motion, and the rudder stock 310 coupled to the center of the tilter 300 rotates do.

Conversely, when the hydraulic oil in the left and right hydraulic cylinders 110 and 120 is supplied to the hydraulic cylinders 110 and 120 and the hydraulic oil is discharged into the hydraulic cylinders 110 and 120, And the power transmission pin 210 protruding vertically at the center of the ram 200 also linearly moves to the right.

The control for the operation of pressurizing or discharging the hydraulic oil to the hydraulic cylinders 110 and 120 is performed by the hydraulic oil control unit 2000 and is controlled by a servo motor 800, the discharge pump 700 which pressurizes or discharges the operating oil is operated.

As shown in FIG. 3, when the discharge pump 700 is moved in the longitudinal direction of the ram 200 as shown in FIG. 3, the structure of the conventional helm- There is a difference in that the disadvantage that the spacing between the pump units is narrow due to the complicated construction due to the installation of the conventional helm of the marine vessel arranged at one side of both ends,

In the marine steering apparatus of the present disclosure, the actuator unit 1000 and the hydraulic oil control unit 2000 are spaced apart from each other such that a narrow space according to the installation structure of the actuator unit 1000 and the hydraulic oil control unit 2000 is not formed, So that it is possible to secure a space by securing a separation distance between the respective components of the actuator unit and the hydraulic oil control unit.

That is, as shown in FIG. 3, in a longitudinal direction one end side and one end side selected from the other end side of the ram 200 to which the hydraulic cylinders 110 and 120 are coupled, a direction perpendicular to the longitudinal direction of the ram 200 As shown in FIG. 4, the discharge pump 700 of the present disclosure is different from the conventional one in that the spacing between the pump units is narrow, The hydraulic cylinders 110 and 120 are spaced apart from each other on both sides in the longitudinal direction of the rams 200 to which the hydraulic cylinders 110 and 120 are coupled.

According to the present invention as described above, since the discharge pump 700 is not provided only at one side of the ram 200, the intervals between the discharge pumps 700 are not narrow and space can be ensured through the discharge pumps 700, Hydraulic lines and pipes 530 connected to the respective components of the hydraulic cylinders 110 and 120, the discharge pump 700 and the servo motor 800 do not have a complicated connection structure, So that a pleasant working environment is obtained.

As shown in FIG. 3, unlike the conventional structure in which the outermost two of the four discharge pumps 700 protrude in the lateral direction, as shown in FIG. 4, all of the four So that the installation of devices other than the present disclosure can be facilitated by securing the operator's walking safety and space for the outside space.

As shown in FIG. 5, the present disclosure can provide an apparatus such as the fan cooler 900 and the like in order to secure a space according to the above-described manner, thereby raising the temperature of the operating oil more efficiently. This makes it possible to prevent the process stoppage due to the temperature rise of the operating oil.

At this time, if the capacity of the tank is reduced, it is more advantageous in securing the above-mentioned space, so that not only the capacity of the fan cooler 900 but also a separate device for maintaining and repairing the hydraulic system can be provided. It is pressurized at a relatively large flow rate unnecessarily regardless of the swirling force so that the problem of adversely affecting the hydraulic system due to a relatively large amount of heat generated in the tank by moving the tank is supplemented.

It is preferable that the discharge pump 700 of the present disclosure is located above the hydraulic cylinders 110 and 120. The conventional problem that the hydraulic line and the pipe 530 are complicatedly provided is improved So that it is possible to secure a space for optimum placement.

Although the discharge pump 700 of the present disclosure described above is described as being provided on the upper side of the hydraulic cylinders 110 and 120, the present invention is not limited thereto and may be provided on the lower side or the side surface. Lt; RTI ID = 0.0 > of < / RTI >

In addition, although two hydraulic cylinders 110 and 120 are shown in Fig. 2 of the present disclosure in the figures and reference numerals, it is for the sake of clarity of explanation to explain the present disclosure, And a servo motor may be provided in at least one or more than one of them.

In addition, the actuator unit 1000 and the hydraulic oil control unit 2000 of the present disclosure may be installed directly on the ship, but may be installed on a separately provided structure such as a support plate (not shown).

The marine steering apparatus as described above can effectively lower the temperature of the operating oil and thereby stop the process due to the generation of heat in the conventional twin actuator hydraulic system for a steering apparatus which is a hydraulic driving apparatus and shorten the life of the hydraulic fluid, And the problem of the reduction in the performance of the hydraulic line and piping, the oil tank, the cylinder, and the pump are solved by the optimum arrangement of the hydraulic lines and the pumps. Thus, maintenance and repair are easy, It is easy to cope with the pollution and the risk of fire due to the fire.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It is not limited to the embodiment.

110, 120: Hydraulic cylinder
200: RAM
300: Tiller
410, 420: Transfer piping
510, 520: Safety valve
530: Piping
540: Oil tank
550: Spray oil injection piping
600: Directional control valve
700: Discharge pump
800: Servo motor
900: Fan Cooler
1000: actuator part
2000:

Claims (3)

Hydraulic cylinders 110 and 120 having both ends of the ram 200 inserted and coupled to allow the ram 200 to linearly move while being spaced apart from each other while being opposed to each other, A power transmitting pin 210 for transmitting the left and right motion of the ram 200 due to the operation of the hydraulic cylinder and a power transmitting pin 210 coupled to the power transmitting pin, An actuator unit 1000 including a tilter 300 that converts the rotational force into a rotational force and rotates and a rudder stock 310 coupled to the center of the tilter; And
A transfer pipe 410 and 420 connected to the hydraulic cylinders of the actuator unit 1000 to transfer the hydraulic oil to the hydraulic cylinders of the actuator unit 1000 and the transfer pipes 410 and 420 so that pressure in the transfer pipe causes rupture of the transfer pipe or the hydraulic cylinder A direction control valve 600 connected to the transfer pipe and controlling the flow of the hydraulic oil to the transfer pipe, and a direction control valve 600 connected to the transfer pipe, And a servomotor 800 capable of controlling the rotational speed and bi-directional rotation according to the input voltage by providing a driving force to the discharge pump. And a hydraulic oil control unit (2000), the steering system comprising:
The actuator unit 1000 and the hydraulic oil control unit are spaced apart from each other within the upper range of the support plate which is a structure provided on the ship so that a narrow space according to the installation structure of the actuator unit 1000 and the hydraulic oil control unit 2000 is not formed, ≪ / RTI >
The discharge pump 700 is not limited to one of the one end side and the other end side in the longitudinal direction of the ram 200 and is spaced apart on both sides in the longitudinal direction of each of the rams 200 to which the hydraulic cylinders 110 and 120 are coupled And is disposed on the upper side of the hydraulic cylinder to secure a space between the actuator unit 1000 and the hydraulic oil control unit and a space by simplifying the hydraulic line and piping connection structure connected to the respective components,
The fan cooler 900 is provided in the space to more effectively lower the temperature rise of the operating oil in the directional control valve 600 by the operation of the fan cooler to prevent the process stop due to the temperature rise of the operating oil Wherein the steering control device comprises:

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