KR101763682B1 - lubrication system of ship propulsion system - Google Patents

lubrication system of ship propulsion system Download PDF

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Publication number
KR101763682B1
KR101763682B1 KR1020150157251A KR20150157251A KR101763682B1 KR 101763682 B1 KR101763682 B1 KR 101763682B1 KR 1020150157251 A KR1020150157251 A KR 1020150157251A KR 20150157251 A KR20150157251 A KR 20150157251A KR 101763682 B1 KR101763682 B1 KR 101763682B1
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KR
South Korea
Prior art keywords
lubricating oil
compressed air
line
lubricating
region
Prior art date
Application number
KR1020150157251A
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Korean (ko)
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KR20170055048A (en
Inventor
우성민
박형길
이진석
이태구
정재권
김기현
김수형
Original Assignee
삼성중공업 주식회사
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Priority to KR1020150157251A priority Critical patent/KR101763682B1/en
Publication of KR20170055048A publication Critical patent/KR20170055048A/en
Application granted granted Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B63H21/386—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling lubrication liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
    • F16N2033/005—Flushing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

A lubrication system for a ship propulsion system is disclosed. A lubrication system of a marine propulsion device according to an embodiment of the present invention includes a lubricating oil supply line for supplying lubricating oil from a lubricating oil tank to a lubricating region of a propulsion device; A lubricating oil return line for returning the lubricating oil in the lubricating region to the lubricating oil tank; And a compressed air source for supplying compressed air to the propulsion unit lubrication zone to clean the propulsion unit lubrication zone.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lubrication system for ship propulsion system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubrication system of a ship propulsion device, and more particularly, to a lubrication system of a propulsion device capable of performing lubrication path cleaning by supplying compressed air to a lubrication area of a gear box or the like.

The ship propulsion system having one propeller has a limitation in increasing the propulsion performance because it can not recover the rotational energy of the water flow generated by the propeller rotation by the propulsion force.

On the other hand, a counter-rotating propeller (CRP), in which two propellers rotate in opposite directions to generate propulsive force, can exert a higher propulsion performance than a single propeller propulsion device. This is because the rotational energy of the water flow generated by the forward propeller can be recovered by the propulsive force while the rear propeller is rotating in the reverse direction.

Japanese Unexamined Patent Publication No. 2009-161050 (published on July 23, 2009) provides an example of a double inverting propulsion device. The propulsion system is composed of a forward propeller and a rear propeller installed in the stern side, a reverse rotation device installed in the hull to realize the opposite rotation between the front propeller and the rear propeller, and a rotary power from the reverse rotation device to the front and rear propellers, And has a rotating inner shaft and an outer shaft. In addition, the propulsion device includes a lubricating system for circulating lubricating oil in the gear box of the reverse rotation device and between the inner shaft and the outer shaft for smooth operation.

When such a propulsion device is operated, debris may be generated in the lubrication path of the lubrication system or external impurities may be introduced. Therefore, a lubrication path of a normal lubrication system is provided with a filter device for filtering out debris or impurities.

However, since such a propulsion device generates a relatively large amount of debris due to tooth surface contact of gears or the like in a gear box of an inversion rotating device, there is a limit in cleaning the filter device by a conventional filter device and it is difficult to remove debris accumulated in the lubrication area .

Japanese Unexamined Patent Publication No. 2009-161050 (published on July 23, 2009)

An embodiment of the present invention seeks to provide a lubrication system for a marine propulsion system that allows compressed air to be supplied to the lubrication area of a propulsion device to perform cleaning of the lubrication area.

According to one aspect of the present invention, there is provided a lubricating oil supply apparatus comprising: a lubricating oil supply line for supplying lubricating oil from a lubricating oil tank to a lubricating region of a propulsion device; A lubricating oil return line for returning lubricating oil in the propelling unit lubricating region to the lubricating oil tank; And a compressed air source for supplying compressed air to the propulsion unit lubrication zone to clean the propulsion unit lubrication zone.

The lubrication system may further include a discharge line for discharging the compressed air and debris discharged from the propulsion device lubrication region to the collection tank.

The compressed air source may be connected to the lubricant supply line by a compressed air line, and the discharge line may be branched from the lubricant return line.

The lubricating system comprising: a first opening / closing valve for opening / closing the lubricating oil supply line upstream of the compressed air line connecting portion; A second open / close valve for opening / closing the lubricant return line downstream of the discharge line connection portion; A third opening / closing valve for opening / closing the compressed air line; And a fourth opening / closing valve for opening / closing the discharge line.

The lubricating oil supply line may be connected to the lubricating oil inlet of the propulsion gearbox and the lubricating oil return line may be connected to the lubricating oil outlet of the gearbox.

The lubrication system of the ship propulsion device according to the embodiment of the present invention can supply the high pressure compressed air to the lubrication area of the propulsion device to clean the debris accumulated in the lubrication area, so that the lubrication area can be kept clean. Therefore, it is possible to smoothly circulate the lubricant to the lubricating region of the propulsion device.

1 is a cross-sectional view showing a ship propulsion apparatus to which the present invention is applied.
2 is a cross-sectional view showing the internal configuration of a gear box of a reverse rotation device of a marine propulsion device to which the present invention is applied.
3 shows a lubrication system of a marine propulsion system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided to fully convey the spirit of the present invention to a person having ordinary skill in the art to which the present invention belongs, and the present invention is not limited thereto but may be embodied in other forms. In order to clarify the present invention, it is possible to omit the parts of the drawings that are not related to the description, and the size of the components may be slightly exaggerated to facilitate understanding.

1 shows a propulsion device for a ship to which a lubrication system according to an embodiment of the present invention is applied. As shown in the drawings, the ship propulsion device according to the present embodiment includes a forward propeller 10 and a rear propeller 20 disposed on the rear of the hull 1 so as to coincide axes, an engine 2 installed inside the hull 1, And a reverse rotation device 30 that implements a counterclockwise rotation of the front propeller 10 and the rear propeller 20 while transmitting the rotational force of the front propeller 10 and the rear propeller 20 to the front propeller 10 and the rear propeller 20. And is a dual inversion type propulsion device in which propulsion is generated by rotating the front propeller 10 and the rear propeller 20 counterclockwise.

The rotational force of the engine 2 is transmitted to the inversion rotating device 30 provided inside the hull 1 by the main drive shaft 3 and the flexible coupling 4. [ The reverse rotation device 30 rotates the inner shaft 51 and the outer shaft 52 in opposite directions and distributes the rotational force of the main drive shaft 3 to the front propeller 10 and the rear propeller 20 to be transmitted.

The rear propeller 20 is fixed to the rear end of the inner shaft 51 which is directly connected to the main drive shaft 3 and extends to the outside through the rear hull 5. The forward propeller 10 is rotatably supported on the outer surface of the inner shaft 51 at the front of the rear propeller 20 and is supported by an outer rotary shaft 52 passing through the rear hull 5, ).

2, the reverse rotation device 30 includes a gear box 31 and a plurality of gears disposed in the gear box 31 and transmitting the rotation of the inner shaft 51 to the outer shaft 52 . The inner shaft 51 penetrates the center portion of the gear box 31 in a rotatable state.

The gear box 31 of the reverse rotation device 30 is constituted by a cylindrical front frame 31a and a cylindrical body 31a which is coupled to the rear end of the front frame 31a and forms a space for accommodating the reverse gear unit together with the front frame 31a And a rear frame 31b.

The reverse rotation device 30 is rotatably supported on the front frame 31a in such a manner as to penetrate the front portion of the front frame 31a of the gear box 31 and fixed to the inner shaft 51 to rotate together with the inner shaft 51 A sun gear 33 connected to the first shaft connecting member 32 inside the gear box 31 and a sun gear 33 connected to the outside of the sun gear 33. The sun gear 33 is connected to the flange 51a, A plurality of planetary gears 34 provided so as to be engaged with the gear 33, a first fixed carrier 36 for supporting the shaft 35 of the plurality of planetary gears 34 while being fixed in the gear box 31, A second fixed carrier 37 for supporting the opposite side of the planetary gear shaft 35 of the planetary gear set 34 and a plurality of planetary gears 34 and a ring gear 38, 31 is rotatably supported on the rear frame 31b in such a manner as to penetrate through the rear frame 31b of the outer frame 31 and one end is connected to the ring gear 38 by the rotary member 39, And a second shaft connecting member 40 connected to the second shaft connecting member 40.

The sun gear 33 rotates in the same direction as the inner shaft 51 because the first shaft connecting member 32 rotates together with the inner shaft 51 and the plurality of planetary gears 34 are fixed The sun gear 33 and the sun gear 33 are rotated. The ring gear 38 rotates in the same direction as the plurality of planet gears 34 because the teeth of the inner surface of the ring gear 38 are engaged with the plurality of planetary gears 34. Therefore, the ring gear 38 rotates in the direction opposite to the inner shaft 51. The ring gear 38 rotating in opposition to the inner shaft 51 rotates the outer shaft 52 via the rotary member 39 and the second shaft connecting member 40 so that the outer shaft 52 is rotated in a direction opposite to the inner shaft 51 Rotate.

The inversion rotating device 30 implements the counterclockwise rotation of the front propeller 10 and the rear propeller 20 by rotating the inner shaft 51 and the outer shaft 52 in opposite directions by dispersing the rotational force transmitted from the main drive shaft 3 .

Such a ship propulsion device is provided with a lubrication system for circulating lubricating oil in the gear box 31 of the reverse rotation device 30 and a gap between the inner shaft 51 and the outer shaft 52 for smooth operation. 3 shows a lubrication system 60 (Fig. 3) for lubricating and cooling the gears in the gear box 31 by circulating the lubricating oil into the gear box 31 of the reverse rotation device 30, ).

3, the lubrication system 60 includes a lubricating oil tank 61 filled with lubricating oil, a lubricating oil supply line 62 connected to supply lubricating oil from the lubricating oil tank 61 to the lubricating oil inlet 30a of the gear box 31, And a lubricant return line 63 extending from the lubricant outlet 30b of the gear box 31 to the lubricant tank 61 so as to return the lubricant to the lubricant tank 61 through the inside of the gear box 31. [

The lubricating oil supply line 62 is provided with a supply pump 64 for feeding the lubricating oil of the lubricating oil tank 61 toward the gear box 31, a filter 65 for filtering out debris or impurities contained in the supplied lubricating oil, And a cooling device 66 for cooling the cooling water.

The lubrication system 60 also includes a cleaning device 70 for cleaning the internal lubrication area of the gear box 31, as shown in Fig. The cleaning apparatus 70 includes a compressed air supply source 71 for supplying compressed air to the lubricating region in the gear box 31 to clean the lubricating region, a compressed air line 71 for connecting the compressed air supply source 71 and the lubricating oil supply line 62, And a discharge line 73 for discharging the compressed air and debris discharged from the gear box 31 to the collection tank 74 during the cleaning process of the lubricating area of the gear box 72 and the gear box 31.

The lubrication system 60 is provided with a plurality of open / close valves for switching the path so that lubricating oil is circulated into the gear box 31, compressed air is supplied into the gear box 31 during the cleaning operation, Valve. These open / close valves include a first open / close valve 67 for opening / closing a lubricating oil supply line 62 upstream of the connection portion of the compressed air line 72, a first opening / closing valve 67 for opening / closing the lubricating oil return line 63 A third open / close valve 75 for opening / closing the compressed air line 72, and a fourth open / close valve 76 for opening / closing the discharge line 73.

The compressed air supply 71 may be constituted by a large capacity pump supplying compressed air of approximately 10 bar or more into the gear box 31, or may be constituted by a compressed air tank or a compressed air supply line in the ship.

When the lubricating oil is circulated from the lubricating system 60 to the lubricating region in the gear box 31, the first on-off valve 67 and the second on-off valve 68 are opened and the third on- Closing valve 76 is closed. When the supply pump 64 operates in this state, the lubricating oil of the lubricating oil tank 61 is supplied into the gear box 31 through the lubricating oil supply line 62, and the lubricating oil passing through the inside of the gear box 31 is returned to the lubricating oil returning position And returns to the lubricant tank 61 through the line 63 again. The lubricating oil supplied to the gear box 31 can be filtered while passing through the filter device 65 and can be cooled through the cooling device 66. [

When the debris accumulated in the lubricating path in the gear box 31 is to be cleaned, the first opening / closing valve 67 and the second opening / closing valve 68 are closed to stop the circulation of the lubricating oil while the operation of the supply pump 64 is stopped, 3 open / close valve 75 and the fourth open / close valve 76 are opened. In this state, when the compressed air supply source 71 supplies high-pressure compressed air, the compressed air is supplied into the gear box 31 to clean the lubricating area in such a manner as to remove the debris accumulated in the lubricating area inside the gear box 31 . The compressed air and debris discharged from the gear box 31 after the cleaning is discharged to the collection tank 74 through the discharge line 73.

Since the lubricating system 70 of this embodiment can supply the high-pressure compressed air to the lubricating region in the gear box 31 to clean the debris accumulated in the lubricating region, the lubricating region can be maintained in a clean state, 31) can be smoothly circulated.

Here, as an example, a case has been described in which compressed air is supplied to the lubricating region in the storage box 31 of the reverse rotation device 30 to clean the lubricating region. However, the method of cleaning the lubricating region is not limited thereto, and can be applied to a lubricating system that supplies lubricating oil to other lubricating regions of the propelling apparatus. That is, the present invention can be similarly applied to a lubrication system for supplying lubricating oil to the inner shaft 51 and the outer shaft 52 of the ship propulsion device, and to the lubrication area inside the front propeller 10.

1: hull, 2: engine,
3: main drive shaft, 5: hull rear,
10: forward propeller, 20: rear propeller,
30: reverse rotation device, 31: gear box,
51: inner shaft, 52: outer shaft,
60: Lubrication system, 61: Lubricating oil tank,
62: lubricating oil supply line, 63: lubricating oil returning line,
64: feed pump, 67: first opening / closing valve,
68: second opening / closing valve, 70: cleaning device,
71: compressed air source, 72: compressed air line,
73: discharge line, 74: collection tank,
75: third opening / closing valve, 76: fourth opening / closing valve.

Claims (5)

A lubricating oil supply line for supplying lubricating oil from the lubricating oil tank to the lubricating region of the propulsion device;
A lubricating oil return line for returning lubricating oil in the propelling unit lubricating region to the lubricating oil tank; And
A compressed air supply for supplying compressed air for cleaning the lubrication area;
A compressed air line that connects the lubricant supply line to the inlet side of the lubrication zone and the compressed air supply source to selectively provide compressed air provided by the compressed air source to the lubrication zone; And
And a discharge line connecting the lubricant return line to the outlet side of the lubrication region and selectively discharging debris of the lubricating region removed by the compressed air to the collection tank,
Supplying the compressed air through the compressed air line in a state in which the lubricant circulation of the lubricant supply line and the lubricant return line is stopped during the cleaning of the lubricant region to collect debris removed from the lubricant region through the discharge line Lubrication system of ship propulsion system. The method according to claim 1,
Wherein the lubricating oil supply line is provided with a filter device for filtering the foreign matter of the lubricating oil supplied to the lubricating region. The method according to claim 1,
Wherein the lubricating oil supply line is provided with a cooling device for cooling the lubricating oil supplied to the lubricating region. The method according to claim 1,
A first opening / closing valve for opening / closing the lubricating oil supply line upstream of the compressed air line connecting portion;
A second open / close valve for opening / closing the lubricant return line downstream of the discharge line connection portion;
A third opening / closing valve for opening / closing the compressed air line; And
And a fourth on-off valve for opening / closing the discharge line. 5. The method according to any one of claims 1 to 4,
The lubricating oil supply line being connected to the gearbox lubricating oil inlet of the propulsion device,
Wherein the lubricating oil return line is connected to the lubricating oil outlet of the gearbox.


KR1020150157251A 2015-11-10 2015-11-10 lubrication system of ship propulsion system KR101763682B1 (en)

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KR1020150157251A KR101763682B1 (en) 2015-11-10 2015-11-10 lubrication system of ship propulsion system

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KR1020150157251A KR101763682B1 (en) 2015-11-10 2015-11-10 lubrication system of ship propulsion system

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KR20170055048A KR20170055048A (en) 2017-05-19
KR101763682B1 true KR101763682B1 (en) 2017-08-02

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Publication number Priority date Publication date Assignee Title
CN109519524B (en) * 2018-12-05 2024-09-13 苏州苏净船用机械有限公司 Marine gear box

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