KR102357748B1 - Power transmission module for boat - Google Patents

Abstract

A ship having a propulsion module using a hydraulic motor includes a hull, an engine installed on the hull, a hydraulic pump driven by the engine to pump hydraulic oil, and hydraulic oil pumped by the hydraulic pump A first hydraulic motor, a first propulsion unit including a first propeller rotated by the first hydraulic motor, a second hydraulic motor driven by hydraulic oil pumped by the hydraulic pump, and the second hydraulic motor A second propulsion unit including a rotating second propeller is provided, wherein the first propulsion unit and the second propulsion unit respectively lower the first and second propellers as the hull floats from the water surface due to the increase in the speed of the vessel. It is provided with first and second propulsion depth adjustment units for

Description

A ship having a propulsion module using a hydraulic motor {Power transmission module for boat}

The present invention relates to a ship, and more particularly, to a ship having a propulsion module for obtaining propulsion by rotating a propeller by a hydraulic motor.

In general, the stern propulsion device drives the thruster connected to the propulsion shaft through the reduction gear, clutch, and reversing device by the power of the main engine, so the length of the universal joint between the main engine and the propulsion device is limited, so the main engine and the propulsion connected thereto Since the weight of the device is relatively concentrated on the stern part, it is difficult to maintain the balance of the ship and the structure is relatively complicated.

Moreover, the arrangement of the engine is complicated because the main engine and the propulsion device are installed adjacent to each other in the narrow engine room, and there are many restrictions on the location of the engine room. In particular, since the power transmission system is relatively complex, the failure rate is relatively high, and there is an inherent risk of maritime accidents during operation.

In addition, in the conventional technical configuration, an outboard engine is mounted on a ship of 5 tons or less, and the driving engine is mounted on the upper part of the propulsion unit, and most of the types use gasoline as fuel oil, so output is limited during high-speed operation, and the fuel cost is diesel. 2 to 3 times higher than engine-driven propulsion systems.

In consideration of this point, the hydraulic motor as a driving source for rotating the propeller is simplified in the transmission structure of power. However, when using such a hydraulic motor, there is a problem in that it is difficult to secure a relatively high rotational speed, so it is difficult to mount it on a high speed boat.

Korean Utility Model Registration No. 0212135 discloses a hydraulic motor parallel drive type stern propulsion device, and Patent Registration No. 0395644 discloses a hydraulic motor parallel drive type stern propulsion device and a hydraulic system for controlling the same.

And Korean Patent Registration No. 0300565 discloses a ship propulsion device. Posted ship propulsion device is an engine installed at a predetermined position inside the ship inside the stern wall of the ship; a hydraulic pump generating hydraulic pressure by driving the engine; a body part suspended on the outside of the stern wall through a lifting/steering means including a lifting link, a lifting cylinder, a steering link and a steering cylinder for forward and backward propulsion and left and right steering of the ship, and capable of turning up and down and left and right; a hydraulic motor provided inside the main body and connected to the hydraulic pump by a hydraulic hose to rotate a propeller installed at the rear end of the main body using hydraulic pressure generated from the hydraulic pump; and a hydraulic system for pivoting the main body left and right by using hydraulic pressure.

The conventional ship propulsion device as described above has a problem in that as the speed increases, the propeller rotating by the hydraulic motor is lifted, making it difficult to secure propulsion.

However, the conventional power transmission method of the outboard motor has a problem in that it is difficult to change the propeller rotation speed and rotation direction because the drive shaft of the engine and the shaft are connected in a direct connection method.

Republic of Korea Patent Publication No. 10-0164025 : Outboard engine engine. Republic of Korea Utility Model Registration No. 0212135: Hydraulic Motor Parallel Drive Type Stern Propulsion Device Republic of Korea Patent Registration No. 0395644: Hydraulic motor parallel drive type stern propulsion device and hydraulic system for controlling it. Republic of Korea Patent Registration No. 0300565: Ship propulsion device

In view of the above problems, the present invention can prevent the propulsion from being lowered due to the lifting of the propulsion stern of the ship by rotating the propeller by the hydraulic motor, and using a hydraulic motor that allows the horizontal state of the ship to be maintained by propulsion. An object of the present invention is to provide a ship having a propulsion module.

In order to achieve the above object, a ship having a propulsion module using a hydraulic motor of the present invention includes a hull, an engine installed on the hull, a hydraulic pump driven by the engine to pump hydraulic oil, and the hydraulic pump A first propulsion unit driven by hydraulic oil pumped by a first hydraulic motor and a propeller rotated by the first hydraulic motor;

A second hydraulic motor driven by hydraulic oil pumped by the hydraulic pump, and a second propulsion unit including a propeller rotated by the second hydraulic motor,

The first propulsion unit and the second propulsion unit each include first and second propulsion depth adjustment units for lowering the first and second propellers as the hull floats from the water surface due to the increase in the speed of the ship.

In the present invention, the first propulsion depth adjustment unit includes a first support frame installed at the rear of the hull, a first lifting frame that is lifted along a first guide rail installed on the first support frame, and a first support and a first elevating actuator installed on the frame and the first elevating frame to elevate and elevate the first supporting frame,

The second propulsion depth adjustment unit includes a second support frame installed at the rear of the hull, a second elevating frame elevating along a second guide rail installed on the second support frame, a second support frame, and a second elevating frame and a second lifting actuator installed on the frame to raise and lower the second support frame.

A ship having a propulsion module using a hydraulic motor according to the present invention has a simple power transmission structure from an engine to a propeller, thereby reducing the occurrence of malfunctions. In addition, according to the present invention, it is easy to change the direction of the ship, and in particular, it is possible to achieve safety according to the rotation during a sharp turn. And the present invention can fundamentally prevent the propeller from being submerged in water due to the injury of the ship during high-speed sailing, so that navigation is possible even at a low water level.

1 is a perspective view of a ship having a propulsion module using a hydraulic motor according to the present invention in the ship;
2 is a bottom view of a ship according to the present invention;
3 is an exploded perspective view showing the first and second propulsion modules mounted on the hull of FIG. 1;
4 is an exploded perspective view showing extracting the first and second propulsion modules shown in FIG. 1;
5 is a perspective view showing a state in which the engine and the propulsion unit are connected.
Figure 6 is a perspective view showing a ship steering relationship.
7 is a hydraulic circuit diagram showing a hydraulic circuit for driving a ship;

A ship having a propulsion module using a hydraulic motor according to the present invention is capable of transmitting engine power to a propeller using hydraulic oil, one embodiment of which is shown in FIGS. 1 to 6 .

Referring to the drawings, a hull 200 of a ship having a propulsion module using a hydraulic motor according to the present invention, an engine 210 installed in the hull 200, and the engine 210 are driven to pump hydraulic oil A first hydraulic pump 220 to be installed and the hydraulic oil pumped by the hydraulic pump 220 installed at the rear of the hull 200 to be driven by the hydraulic oil pumped by the hydraulic pump 220 and driven by the hydraulic oil pumped by the hydraulic pump 220 A first propulsion unit 20 having a hydraulic motor and a first propeller rotated by the first hydraulic motor, a second hydraulic motor driven by hydraulic oil pumped by the hydraulic pump 220, and now A second propulsion unit (60) having a second propeller rotated by two hydraulic motors is provided. And the first and second propulsion units 20 and 60 are first and second propulsion depth adjustment units for lowering the first and second propellers as the hull floats from the water surface due to the increase in the speed of the vessel's sailing speed, respectively. (30) and (70).

A vessel having a propulsion module using a hydraulic motor according to the present invention configured as described above will be described in detail for each component as follows.

The ship has first and second guide portions 201 and 202 formed on the lower surface of the hull 200 to guide water to the propeller side when sailing. The first and second guide parts 201 and 202 are formed in a streamlined shape with a relatively wide width on the lower side of the bow, a relatively narrow width at the center, wider at the rear than at the center, and narrower than the bow side. . The first and second guide parts 201 and 202 are installed parallel to each other in the longitudinal direction on the lower surface of the hull 200 .

The first and second propulsion units 20 and 60 are installed in parallel with each other at the rear of the hull 200, and the first and second induction guides 201 and 202 on the corresponding side or in the first and second induction It is preferably located inside the guide portions 201 and 202 partitioned by the first and second induction guide portions 201 and 202, respectively, so that they can be installed biased toward the side.

The first propulsion unit 20 constitutes a first base frame 21 vertically installed at the rear of the hull 200 and a first propulsion depth adjustment unit 30 on the first base frame 21, A first elevating frame 22 is provided so as to be elevating with respect to the first base frame 21 . And the first lifting frame 22 is provided with a first support frame 24 that is unfolded or folded in a state for propulsion by the first rotation driving unit 23 .

And a first propulsion module 40 is rotatably installed on the first support frame 24 , and the first propulsion module 40 has a first steering drive unit 50 installed on the first support frame 24 . rotated by a predetermined angle.

The first propulsion depth adjustment unit 30 includes a first guide member 31 installed vertically and parallel to the first base frame 21 to elevate the first elevating frame 22, and the first guide A first actuator (not shown) for elevating the first elevating frame 22 along the member 31 is provided. The first actuator may be a hydraulic cylinder or a hydraulic motor. In the case of a hydraulic cylinder, the main body of the hydraulic cylinder is supported on the first base frame 21, and the rod may be installed on the first lifting frame 22. have. However, the present invention is not limited thereto. And although not shown in the drawings, a detection sensor for detecting the injury of the hull 101 to the water surface may be further provided in order to lower the first elevating frame 22 when floating due to the high-speed running of the ship. The first actuator may be formed of a rodless cylinder.

The first rotation driving unit 23 is for rotating the first support frame 24 with respect to the first elevating frame 22, and is installed to be vertically elevating on the first elevating frame 22. The first rack gear 23a and the first rack gear 23a are meshed with each other, and are formed on the front surface of the first support frame 24 coupled by the first elevating frame 22 and the first hinge shaft 24a. A formed first pinion portion 23c is provided. In addition, it is preferable that a hydraulic cylinder or a hydraulic motor is used for the second actuator 23b for elevating the first rack gear 23 in the first lifting frame 22 .

In the first propulsion module 40 , a first rotation support part 41 is rotatably installed on the first support frame 24 , and a first rudder member 42 is installed on the first rotation support part 41 . A first drive shaft 44a connected to the shaft of the first hydraulic motor 43 driven by hydraulic oil pumped by the hydraulic pump is installed on the first rudder member 42, and the first drive shaft 44a ), the first propeller 44 is installed.

The first rudder member 42 may include a first housing portion 42a in which the first driving shaft 44a is installed and a first rudder portion 42b installed in a lower portion thereof. Here, the hydraulic motor 43 is installed on the first support frame 24 as shown in FIG. 4 , and power is transmitted by the first drive shaft 44a on which the first propeller 44 is installed and the power transmission member. has a structure to be In this case, the power transmission member may include a drive shaft and a bevel gear.

In addition, the first propulsion module 40 is installed on the first support frame 24 and includes a first steering drive unit 50 for steering the first rotation support unit 41 . The first steering drive unit 50 is coupled to the first rotation support unit 41, and the first support frame 24, a worm wheel 51 is installed, and the worm wheel 51 is a first controllable rotational position. 1 It meshes with the worm 53 driven by the steering hydraulic motor 52 . The worm wheel 51 and the worm wheel 51 driven by the first steering hydraulic motor 52 are installed in the first support frame 24, but the present invention is not limited thereto and may be supported in a separate housing (not shown).

The second propulsion unit 60 is installed in parallel with the first propulsion unit 60 and the hull 200 , and has substantially the same structure as the first propulsion unit 20 .

When the second propulsion unit 60 is described in more detail, a second base frame 61 installed perpendicularly to the aft of the hull 200, and a second propulsion depth adjustment unit ( 70) and includes a second elevating frame 62 installed so as to be elevating with respect to the second base frame 61 . And the second lifting frame 62 is provided with a second support frame 64 that is unfolded or folded in a state for propulsion by a second rotation driving unit 63 .

And a second propulsion module 80 is rotatably installed on the second support frame 64 , and the second rotation support 81 of the second propulsion module 80 is installed on the second support frame 64 . It is rotated at a predetermined angle by the second steering drive unit 90 that becomes

The second propulsion depth adjustment unit 70 includes a second guide member 71 installed vertically and parallel to the second base frame 61 to elevate the second elevating frame 62, and the second guide A second actuator (not shown) for elevating the second elevating frame 62 along the member 71 is provided. And although not shown in the drawings, a detection sensor for detecting the injury of the hull 200 from the water surface may be further provided in order to lower the second elevating frame 22 when floating due to the high-speed running of the ship.

The second rotation driving unit 63 is for rotating the second support frame 64 with respect to the second elevating frame 62, and is installed to be vertically elevating on the second elevating frame 62. It is meshed with the second rack gear 63a and the second rack gear 63a, and is formed on the front surface of the second support frame 64 coupled by the second elevating frame 62 and the second hinge shaft 64a. and a formed second pinion portion 63c. In addition, the second lifting frame 62 includes a second actuator 63b for lifting and lowering the second rack gear 63a.

In the second propulsion module 80 , a second rotation support part 81 is rotatably installed on the second support frame 64 , and a second rudder member 82 is installed on the second rotation support part 81 . A second drive shaft 84a connected to the shaft of a second hydraulic motor 83 driven by hydraulic oil pumped by the hydraulic pump is installed on the second rudder member 82, and the second drive shaft 84a ), the first propeller 84 is installed. The second rudder member 82 may include a second housing portion 82a in which the second driving shaft 84a is installed and a second rudder portion 82b installed in a lower portion thereof.

In addition, the second propulsion module 80 is installed on the second support frame 64 and includes a first steering drive part 90 for steering the second rotation support part 61 . The first steering drive part 90 is coupled to the second rotation support part 81 , and a worm wheel 91 is installed on the second support frame 64 , and the worm wheel 91 is capable of controlling a rotational position. It meshes with the worm 93 driven by the second steering hydraulic motor 92 . The worm wheel 91 and the worm wheel 91 driven by the second steering hydraulic motor 92 are installed on the second support frame 64, but the present invention is not limited thereto and may be supported by a separate housing (not shown).

And a hydraulic circuit for driving the first and second propulsion units by hydraulic oil driven by a hydraulic pump driven by the engine of the ship is shown.

The operation of the ship having the propulsion module using the hydraulic motor according to the present invention configured as described above will be described as follows.

In order for a ship having a propulsion module using a hydraulic motor to navigate in the present invention, hydraulic oil pumped from the hydraulic pump 220 driven by the engine 200 is transferred using a control valve to the first and second propulsion units 20 and 60 ) of the first and second hydraulic motors 43 and 83 are supplied. At this time, the rotation directions of the drive shafts of the first and second hydraulic motors 43 and 83 are opposite to each other. This compensates for the deflection of the propulsion direction due to the rotation of the first and second propellers 44 and 84 in the mutual propulsion direction . That is, when the first and second hydraulic motors 43 and 83 are rotated in the same direction, it is possible to prevent the sailing direction of the vessel from being tilted to one side.

As described above, the hull may be floated due to an increase in speed in the course of sailing of the vessel. In this case, the first and second propulsion units ( The first and second elevating frames 22 and 62 of 20 and 60 are lowered along the first and second guide rail members 31 and 71, respectively. In this way, as the first and second support frames 24 and 64 are lowered, the first and second propulsion modules 40 and 80 installed therein descend, and the first and second support frames 24 and 64 are lowered due to the injury of the hull due to the high-speed voyage of the vessel. It is possible to prevent the propulsion force by the first and second propellers 44 and 84 of the propulsion modules 40 and 80 from being lowered.

On the other hand, by driving the first and second steering hydraulic motors 52 and 92 of the first and second steering driving units 50 and 90 to rotate the worms 53 and 93 for steering the heading vessel. The worm wheels 51 and 91 installed on the first and second rotation support parts 51 and 81 of the first and second propulsion modules 40 and 80 are rotated in the opposite direction to the steering direction. In this way, as shown in FIG. 6 , the first and second propulsion modules 40 and 80 each having the first and second rudder parts 42b and 82b rotate at the same angle in the opposite direction to the steering direction. Accordingly, the steering of the vessel is performed.

In particular, in order to make a sharp turn of the hull 200 in the process of steering as described above, the first and second propulsion modules 40 and 80 are rotated to the maximum angle as described above. In the process of steering as described above, the first and second propulsion modules 40 and 80 have first and second rudder parts 42b and 82b under the first and second housing parts 42a and 82a. Each is formed so that rapid rotation is possible.

On the other hand, after driving is made, in order to lift the first and second propulsion modules 40 and 80 to the surface, the first and second rotation driving units 23 and 63 are driven to drive the first and second support frames 24, respectively. (64) the first and second propulsion modules ( The first and second support frames on which 40 and 80 are respectively installed are rotated to the first and second base frames 21 and 61 .

In addition, the first and second lifting frames 22 and 72 of the propulsion depth adjustment unit 30 and 70 are raised. The first and second support frames may be rotated after the first and second lifting frames 22 and 72 are raised.

As described above, a ship having a propulsion module using a hydraulic motor of the present invention uses a hydraulic motor rotating by hydraulic oil pumped from a hydraulic pump driven by an engine to rotate a propeller at high speed to obtain propulsion force. Similarly, compared to transmitting the power of the engine by the power transmission unit, the structure is relatively simple, and it is possible to promote steering stability and propulsion stability. And since the height of the first and second propulsion modules can be adjusted by the first and second propulsion depth adjustment units, propulsion at high speed or at a low depth of water is possible.

Although the power transmission module for a ship according to the present invention has been described with reference to an example shown in the drawings, it is not possible to be exemplary, and various modifications and equivalent other embodiments are possible from those of ordinary skill in the art. will understand the point. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

Claims (3)

A hull 200, an engine 210 installed on the hull 200, and a hydraulic pump 220 driven by the engine 210 to pump hydraulic oil;
A first base frame 21 installed vertically at the rear of the hull 200, a first elevating frame 22 and the first elevating frame 22 installed to be elevating with respect to the first base frame 21 There is a first support frame 24 that is unfolded or folded in a state for propulsion by the first rotation driving unit 23, and a first driven by hydraulic oil pumped by the hydraulic pump 220 to the first support frame. propulsion unit 40 and
A second base frame 61 installed vertically at the rear of the hull 200, a second elevating frame 62 and the second elevating frame 62 which are installed to be elevating with respect to the second base frame 61 There is a second support frame 64 that is unfolded or folded in a state for propulsion by a second rotation driving unit 63, and a second driven by hydraulic oil pumped by the hydraulic pump 220 to the second support frame. propulsion unit (80) and
The first propulsion unit 40 and the second propulsion unit 80 are first and second for lowering the first and second propellers 44 and 84 as the hull floats from the water surface due to the increase in the speed of the ship, respectively. Provided with a propulsion depth adjustment unit (30) (70),
The first propulsion depth adjustment unit 30 includes a first base frame 21 installed at the aft of the hull, and a first base frame 21 installed therein and lifting and lowering along the first guide member 31 . A first actuator for elevating the elevating frame 22 is provided,
The second propulsion depth adjustment unit 70 is a second base frame 61 installed at the rear of the hull, and a second elevating member 71 installed on the second base frame 61 . and a second actuator for elevating along the elevating frame 62,
The first propulsion unit 40 includes a first propulsion module 40 rotatably installed by a first steering drive unit 50 on a first support frame 24 installed on the first elevating frame 22 . become,
The second propulsion unit 80 includes a second propulsion module 80 that is rotatably installed by a second steering drive unit 90 on a second support frame 64 installed on the second elevating frame 62 . becomes,
In the first propulsion module 40, a first rotation support part 41 is rotatably installed on a first support frame 24, and a first rudder member 82 is installed on the first rotation support part 41, , The first rudder member 82 is provided with a first drive shaft 44a connected to the shaft of the first hydraulic motor 83 driven by hydraulic oil pumped by the hydraulic pump, and the first drive shaft 44a The first propeller 44 is installed,
In the second propulsion module 80 , a second rotation support 81 is rotatably installed on a second support frame 64 , and a second rudder member 82 is installed on the second rotation support 81 , , The second rudder member 82 is provided with a second drive shaft 84a connected to the shaft of the second hydraulic motor 83 driven by hydraulic oil pumped by the hydraulic pump, and the second drive shaft 84a A ship having a propulsion module using a hydraulic motor, characterized in that the second propeller (84) is installed on the ship.
delete delete

Images