WO2012173307A1 - 선박용 추진장치 및 이를 포함하는 선박 - Google Patents

선박용 추진장치 및 이를 포함하는 선박 Download PDF

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Publication number
WO2012173307A1
WO2012173307A1 PCT/KR2011/007026 KR2011007026W WO2012173307A1 WO 2012173307 A1 WO2012173307 A1 WO 2012173307A1 KR 2011007026 W KR2011007026 W KR 2011007026W WO 2012173307 A1 WO2012173307 A1 WO 2012173307A1
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WO
WIPO (PCT)
Prior art keywords
propeller
bevel gear
hub
driving shaft
drive shaft
Prior art date
Application number
PCT/KR2011/007026
Other languages
English (en)
French (fr)
Korean (ko)
Inventor
이진석
김지남
박현상
박형길
백광준
이동현
이태구
정성욱
호시노테쯔지
서종수
황보승면
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to JP2014515703A priority Critical patent/JP5801954B2/ja
Priority to CN201180072412.0A priority patent/CN103796915B/zh
Priority to US14/126,381 priority patent/US20140248153A1/en
Priority to EP11867726.9A priority patent/EP2722269B1/en
Publication of WO2012173307A1 publication Critical patent/WO2012173307A1/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • 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
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • 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
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • 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
    • B63H23/36—Shaft tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • B63H2005/106—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type with drive shafts of second or further propellers co-axially passing through hub of first propeller, e.g. counter-rotating tandem propellers with co-axial drive shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers
    • 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
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/06—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
    • B63H2023/062—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts
    • B63H2023/067—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit comprising means for simultaneously driving two or more main transmitting elements, e.g. drive shafts the elements being formed by two or more coaxial shafts, e.g. counter-rotating shafts
    • 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
    • B63H23/321—Bearings or seals specially adapted for propeller shafts
    • B63H2023/323—Bearings for coaxial propeller shafts, e.g. for driving propellers of the counter-rotative type

Definitions

  • the present invention relates to a ship propulsion device and a ship comprising the same, and more particularly, to a ship propulsion device and a ship comprising the two propellers rotate opposite to each other to generate a propulsion force.
  • the ship is equipped with a propulsion system that generates propulsion for operation.
  • a propulsion system that generates propulsion for operation.
  • one propeller is used for the propulsion system.
  • propellers with a single propeller have a high energy loss since the rotational energy of the water flow cannot be used as a propulsion force.
  • Counter-rotating propeller is a device that can recover this lost rotational energy as a driving force.
  • two propellers installed on the same axis rotate in opposite directions to generate propulsion force.
  • the rear propeller of the double reversal propulsion device rotates in the reverse direction with respect to the rotational direction of the front propeller, so that the rotational energy of the fluid by the front propeller can be recovered as the driving force. Therefore, the double reversal propulsion device can exhibit a high propulsion performance compared to the propulsion device having one propeller.
  • the double reversal propulsion unit has an inner shaft connected to the engine inside the hull, a rear propeller coupled to the rear end of the inner shaft, a hollow outer shaft installed to rotate on an outer surface of the inner shaft, and a front propeller coupled to the rear end of the outer shaft.
  • the double reversal propulsion device includes a reverse rotation device installed inside the hull to transfer the rotation of the inner shaft to the outer shaft. As the reverse rotation device, a conventional planetary gear device is used.
  • the propeller can be rotated 360 degrees so that the ship can freely propel, reverse propel or rotate.
  • Azimuth thruster, Azipod, etc. are used for an azimuth thruster.
  • azimuth-type propellers are used in various ships, such as shuttle tankers, FPSOs, polar sailing cargo ships or passenger ships, as well as drillships and icebreakers due to various advantages such as steering performance.
  • An embodiment of the present invention is to provide a ship propulsion apparatus and a ship comprising the same that can implement the mutual inversion of the two propellers without the outer shaft.
  • the rear propeller fixed to the first drive shaft;
  • a front propeller rotatably supported by the first driving shaft in front of the rear propeller;
  • An inverted rotating device which inverts the front propeller and the rear propeller based on rotation of a second driving shaft penetrating the hull and installed in a direction perpendicular to the first driving shaft;
  • a housing installed to surround the second driving shaft and the reverse rotation device.
  • the reverse rotation device includes a drive bevel gear fixed to the second drive shaft, a first driven bevel gear fixed to the hub of the front propeller, and a second driven bevel gear fixed to the first drive shaft, wherein the drive bevel gear By transmitting the rotation of the first driven bevel gear and the second driven bevel gear, it is possible to reverse the front propeller and the rear propeller.
  • the reverse rotation device may further include an intermediate bevel gear interposed between the first driven bevel gear and the second driven bevel gear in a foreign state.
  • the reverse rotation apparatus may further include an intermediate bevel gear shaft that is formed in a direction crossing the first driving shaft and supports the intermediate bevel gear.
  • a bearing may be provided between the intermediate bevel gear and the intermediate bevel gear shaft supporting the intermediate bevel gear for smooth rotation of the intermediate bevel gear.
  • Cylindrical first linings provided on the front portion of the front propeller hub for sealing between the hub of the front propeller and the housing rear portion surrounding the second drive shaft, and installed on the rear surface of the housing so as to contact the outer surface of the first lining. It may further comprise a cylindrical first sealing member.
  • a cylindrical second lining provided at a front portion of the rear propeller hub for sealing between the rear propeller hub and the front propeller hub, and a cylindrical second sealing member provided at a rear portion of the front propeller so as to be in contact with the outer surface of the second propeller. It may further include.
  • the propulsion device for ships rotatably installed relative to the hull, the first drive shaft; A rear propeller fixed to the first drive shaft; A front propeller rotatably supported by the first driving shaft in front of the rear propeller; A second driving shaft extending from the hull and installed in a direction perpendicular to the first driving shaft; And a reverse rotation device configured to reversely rotate the rotational force of the second driving shaft to the front propeller and the first driving shaft in a rotatable manner.
  • the housing may be installed to surround the second driving shaft and the reverse rotation device, and further include a housing rotatably supporting the first driving shaft.
  • Cylindrical first linings provided on the front portion of the front propeller hub for sealing between the hub of the front propeller and the housing rear portion surrounding the second drive shaft, and installed on the rear surface of the housing so as to contact the outer surface of the first lining.
  • the reverse rotation device includes a drive bevel gear fixed to the second drive shaft, a first driven bevel gear fixed to the hub of the front propeller, and a second driven bevel gear fixed to the first drive shaft, wherein the drive bevel gear By transmitting the rotation of the first driven bevel gear and the second driven bevel gear, it is possible to reverse the front propeller and the rear propeller.
  • the first driven bevel gear may be directly connected to the front propeller.
  • a vessel having a marine propulsion device may be provided.
  • the ship propulsion device and the ship including the same according to an embodiment of the present invention can implement the mutual inversion of the two propellers without the outer shaft.
  • the propulsion efficiency can be increased by applying a propulsion method that can mutually reverse the two propellers without an external shaft in the azimuth type propulsion method.
  • FIG. 1 is a cross-sectional view showing a state in which a propulsion apparatus according to an embodiment of the present invention is applied to a vessel.
  • FIG. 2 is a cross-sectional view of the propulsion device according to an embodiment of the present invention.
  • FIG 3 is a cross-sectional view of a first sealing device of the propulsion device according to the embodiment of the present invention.
  • Figure 4 is an exploded perspective view of the first sealing device of the propulsion device according to an embodiment of the present invention.
  • FIG 5 is a cross-sectional view of a second sealing device of the propulsion apparatus according to the embodiment of the present invention.
  • the propulsion device is a double reversal propulsion device for generating a propulsion force while the two propellers (20,30) rotate in opposite directions.
  • the propulsion device penetrates the rear end 3 of the hull 1 and based on the rotation of the second drive shaft 10a installed in a direction perpendicular to the first drive shaft 10, the two propellers (20, 30) Rotate opposite each other.
  • a drive source 140 (motor, generator, engine, etc.) for rotating the second drive shaft 10a is provided in the hull 1.
  • Such a propulsion device may be provided with a steering device 150 in the hull 1 so that the propulsion force applied by the front propeller 30 and the rear propeller 20 to the hull 1 in all directions (360 degrees).
  • the propulsion device may improve the propulsion efficiency by using the duct 40 installed to surround the propellers 20 and 30.
  • Duct 40 may be hydrodynamically streamlined.
  • the propulsion device rotates on the rear propeller 20 fixed to the first driving shaft 10 and the first driving shaft 10 in front of the rear propeller 20.
  • the front propeller 30 is supported based on the rotation of the second drive shaft 10a installed in a direction perpendicular to the first drive shaft 10 through the front propeller 30 and the rear end 3 of the hull 1, which are possibly supported.
  • a housing 130 installed in such a manner as to surround the rear propeller 20 with the reverse rotation device 70 and the second driving shaft 10a and the reverse rotation device 70.
  • the first driving shaft 10 is provided with a bearing 139 at a front end portion of the first driving shaft 10 supported in front of the housing 130 for smooth rotation of the first driving shaft 10.
  • the first drive shaft 10 is provided with a multi-stage outer surface to sequentially install the reverse rotation device 70, the front propeller 30, the rear propeller 20 on the outside thereof.
  • a flange portion 11 having a first stepped portion 12 is provided at a portion where the reverse rotation device 70 is installed, and a first stepped portion (11) behind the flange portion 11 for mounting the front propeller 30.
  • the second step portion 13 is provided with an outer diameter smaller than 12).
  • the tapered portion 14 is formed in a form in which the outer diameter is reduced toward the rear toward the rear of the second step portion 13.
  • the flange portion 11 may be provided in a manner of being integrally provided with the first driving shaft 10 or separately manufactured and then press-fitted to the outer surface of the first driving shaft 10.
  • the rear propeller 20 includes a hub 21 fixed to the rear end portion of the first drive shaft 10 and a plurality of wings 22 provided on an outer surface of the hub 21.
  • the rear propeller 20 is fixed to the first driving shaft 10 by the axial coupling hole 23 formed in the center of the hub 21 is pressed into the outer surface of the taper portion 14 of the first driving shaft 10.
  • the fixing nut 24 is fastened to the rear end of the first driving shaft 10 to be more firmly fixed to the first driving shaft 10.
  • the shaft coupling hole 23 of the hub 21 may be provided in a shape corresponding to the outer surface of the tapered portion 14 of the first driving shaft 10.
  • reference numeral 25 denotes a propeller cap mounted to the rear propeller hub 21 to cover the rear propeller hub 21 rear surface and the rear end of the first driving shaft 10.
  • the front propeller 30 is rotatably installed on the outer surface of the first drive shaft 10 at a position spaced apart from the rear propeller 20 by a predetermined distance forward.
  • the front propeller 30 includes a hub 31 rotatably supported on the outer surface of the first drive shaft 10 and a plurality of wings 32 provided on the outer surface of the hub 31. Since the front propeller 30 rotates opposite to the rear propeller 20, the wing angle is opposite to the wing angle of the rear propeller 20.
  • the hub 31 of the front propeller 30 is rotatably supported by a radial bearing 51 at its center portion, and both sides thereof are rotatably supported by the front thrust bearing 52 and the rear thrust bearing 53. Supported.
  • the inner ring of the front thrust bearing 52 is supported by the jaw of the second step portion 13 of the first drive shaft 10, and the outer ring is supported by the front bearing support 33 of the hub 31.
  • the inner ring of the rear thrust bearing 53 is supported so as not to be pushed in the axial direction by the support ring 60 mounted on the outer surface of the first drive shaft 10, and the outer ring is supported by the rear bearing support 34 of the hub 31. do.
  • the radial bearing 51 supports the radial load of the front propeller 30 acting in the radial direction of the first drive shaft 10, and the front and rear thrust bearings 52, 53 are the first drive shaft 10 ) Supports thrust loads acting in the front and rear axial directions, respectively.
  • the front thrust bearing 52 supports a thrust load acting toward the bow from the front propeller 30 when the ship moves forward
  • the rear thrust bearing 53 acts toward the stern from the front propeller 30 when the ship moves backward. Support the load.
  • the hub 31 of the front propeller 30 may be provided with reinforcing members 41 and 42 at positions where the front and rear bearing supports 33 and 34 are provided, respectively.
  • the rigidity of the hub 31 may be increased by installing the reinforcing members 41 and 42 respectively at the portions where the front thrust bearing 52 and the rear thrust bearing 53 are installed.
  • These reinforcing members (41, 42) may be provided with a steel material with a higher rigidity than the hub (31).
  • the reinforcing member 43 may be provided at a portion in contact with the support ring 60 on the front surface of the hub 21 of the rear propeller 20.
  • the front propeller 30 and the rear thrust bearing 53 are installed on the first drive shaft 10, and then the hub 21 of the rear propeller 20 is coupled to the first drive shaft 10 by a press-fit method.
  • the support ring 60 may be installed between the rear propeller hub 21 and the rear thrust bearing 53.
  • the rear propeller 20 has a coupling error of the rear propeller according to the environment when the rear propeller 20 is press-fitted to the first drive shaft 10, so that the rear thrust bearing 53 and the rear propeller hub 21 are installed. This is because it is difficult to keep the gaps accurately. Therefore, after assembling the rear propeller 20 first, the gap between the rear thrust bearing 53 and the rear propeller hub 21 is measured and manufactured to support the support ring 60 to be fitted to the first drive shaft 10 by Accurate coupling can be implemented.
  • the reverse rotation device 70 passes through the rear end 3 of the hull 1 based on the rotation of the second drive shaft 10a installed in a direction perpendicular to the first drive shaft 10.
  • the front propeller 30 and the rear propeller 20 are inverted with each other.
  • a bearing 138 may be provided between the second driving shaft 10a and the housing 130 surrounding the second driving shaft 10a for smooth rotation of the second driving shaft 10a.
  • the reverse rotation device 70 is connected to the drive bevel gear 73 fixed to the second drive shaft 10a, the first driven bevel gear 71 fixed to the front propeller hub 31, and to the first drive shaft 10. And a fixed second driven bevel gear 72.
  • the reverse rotation device 70 transmits the rotation of the driving bevel gear 73 to the first driven bevel gear 71 and the second driven bevel gear 72 to mutually transfer the front propeller 30 and the rear propeller 20. Invert
  • the driving bevel gears 73 fixed to the second driving shaft 10a formed in a direction perpendicular to the first driving shaft 10 are respectively disposed between the first driven bevel gear 71 and the second driven bevel gear 72. Intervene in the bite state.
  • the first driven bevel gear 71 is fixed to the hub 31 by fastening a plurality of fixing bolts 71a in a state in which the rear surface of the first driven bevel gear 71 is in contact with the front propeller hub 31.
  • the inner diameter portion of the first driven bevel gear 71 is spaced apart from the outer surface of the first drive shaft 10 so that friction does not occur during rotation.
  • FIG. 2 illustrates a manner in which the first driven bevel gear 71 is coupled by fastening the fixing bolt 71a, but the first driven bevel gear 71 is welded to the front propeller hub 31 or the front propeller hub 31. It may be provided integrally with).
  • the second driven bevel gear 72 fixed to the first drive shaft 10 in a form facing the first driven bevel gear 71 fixed to the front propeller hub 31 has a first step of the flange portion 11.
  • the plurality of fixing bolts 72a are fastened in the state supported by the part 12 to be fixed to the flange part 11.
  • the reverse rotation device 70 includes an intermediate bevel gear 74 interposed between the first driven bevel gear 71 and the second driven bevel gear 72.
  • the reverse rotation device 70 includes an intermediate bevel gear shaft 75 formed in a direction crossing the first driving shaft 10 and supporting the intermediate bevel gear 74.
  • a bearing 74a may be provided between the intermediate bevel gear 74 and the intermediate bevel gear shaft 75 supporting the intermediate bevel gear 74 to smoothly rotate the intermediate bevel gear 74.
  • the reverse rotation device 70 is a type of inverting the front propeller 30 and the rear propeller 20 through a plurality of bevel gears 71 to 74, so that the volume thereof is higher than that of the conventional planetary gear type reverse rotation device. Can be reduced.
  • the rear surface of the first driven bevel gear 71 and the front propeller hub 31 may face each other, and the first driven bevel gear 71 and the hub ( Since the center of rotation of 31 can be matched, it is possible to directly connect the first driven bevel gear 71 and the front propeller 30. Therefore, it is possible to transmit power to the front propeller 30 without using the outer shaft unlike the conventional.
  • the friction factor of the first driving shaft 10 can be reduced compared to the conventional one, and thus the lubrication area can be reduced.
  • the work of installing the first drive shaft 10 and the work of aligning the center of the shaft after installation can be easily performed.
  • the conventional planetary gear type reverse rotation apparatus includes a sun gear installed on the drive shaft, a planetary gear installed on the outside of the sun gear, and a cylindrical internal gear installed on the outside of the planetary gear, its volume is relatively large.
  • the internal gear disposed at the outermost portion of the planetary gear type reverse rotation device must rotate, the volume of the outer gear is inevitably increased.
  • a hollow shaft corresponding to a conventional outer shaft should be used to transfer power from the cylindrical internal gear to the front propeller. As a result, it is difficult to reduce the volume while simplifying the configuration as in the present embodiment.
  • the propulsion device of the present embodiment as shown in Figure 2, the first sealing device (90) for sealing between the housing 130, the rear portion and the front propeller hub 31 to prevent the intrusion of sea water or fresh water or foreign matter and , the second sealing device 110 for sealing between the front propeller hub 31 and the rear propeller hub 21 for the same purpose.
  • the first sealing device 90 has a cylindrical first lining 91 provided on the front surface of the front propeller hub 31 and a first lining to contact an outer surface of the first lining 91. It covers the outer surface of 91 and one end thereof includes a cylindrical first sealing member 92 fixed to the rear portion of the housing (130).
  • the first sealing member 92 is installed on the inner surface facing the first lining 91 to be spaced apart from each other a plurality of packings (93a, 93b, 93c) in contact with the outer surface of the first lining 91, these packings 93a And a flow path 95 for supplying a fluid for sealing to the groove between the 93b and 93c.
  • the flow path 95 of the first sealing member 92 surrounds the second drive shaft 10a and the second drive shaft 10a of FIG. 2 through the connection flow path 96 so that lubricant oil having a predetermined pressure can be supplied.
  • the lubricating oil supply passage 137 provided between the housing 130 may be connected.
  • a lubricant with pressure is supplied to the grooves between the packings 93a, 93b, and 93c to press the packings 93a, 93b, and 93c toward the first lining 91 so as to be in close contact with each other to prevent the ingress of seawater or foreign matter. It would be.
  • the first lining 91 is formed of a first member 91a and a semicircular shape that both sides are divided into semicircular shapes so as to be mounted after the front propeller 30 is installed on the first drive shaft 10. It may be composed of two members 91b.
  • the packing 91d may be interposed in the mutually divided portions 91c of the first and second members 91a and 91b so that the sealing may be performed when they are joined to each other.
  • the free end of the divided part 91c of the first member 91a is provided with a first binding portion 91e protruding from one side to the opposite side, and the second member 91b correspondingly coupled to the second member 91b.
  • the second binding portion 91f is provided, whereby the fixing bolts 91g are fastened so that both sides can form a firm coupling with each other.
  • a plurality of fixing bolts 91i are fastened to the flange portion 91h fixed to the front propeller hub 31 to be firmly fixed to the hub 31.
  • a plurality of rings 92a, 92b and 92c which are manufactured in a semicircular shape, may be laminated and fixed in the longitudinal direction of the first driving shaft 10 outside the first lining 91.
  • the plurality of rings 92a, 92b and 92c may be coupled to each other by bolting or welding.
  • the second sealing device 110 includes a cylindrical second lining 111 provided on the front surface of the rear propeller hub 21 and a second lining so as to contact an outer surface of the second lining 111. 111) It includes a cylindrical second sealing member 112 that covers the outer surface and one end thereof is fixed to the rear of the front propeller hub (31). Similarly to the first sealing member 92, the second sealing member 112 also includes a plurality of packings 113a, 113b and 113c provided on an inner surface thereof, and a flow path 115 for supplying a fluid to the grooves between the packings.
  • the flow path 115 of the second sealing member 112 includes a lubricating oil supply passage 137 provided between the housing 130 surrounding the second driving shaft 10a and the second driving shaft 10a through the connection passage 124. Can be connected.
  • radially first connection passages 121 are formed in the first drive shaft 10 and the support ring 60 to connect the lubricating oil supply passage 137 and the inner space 122 of the second lining 111.
  • the second connection flow path 123 connecting the inner space 122 of the second lining 111 and the flow path 115 of the second sealing member 112 to the reinforcing member 42 on the rear side of the front propeller hub 31.
  • Lubricant for sealing is supplied from the center of the first driving shaft 10 to the second sealing member 112 to press the packings 113a, 113b, and 113c, thereby realizing the sealing.
  • the second lining 111 and the second sealing member 112 are also made in a semicircular shape, so that the rear propeller 20 and After the installation of the support ring 60 may be combined.
  • the propulsion device rotates the driving bevel gear 73 fixed to the second driving shaft 10a together in the same direction as the second driving shaft 10a.
  • the rotation of the driving bevel gear 73 is transmitted to the first driven bevel gear 71 fixed to the front propeller hub 31 and the second driven bevel gear 72 fixed to the first drive shaft 10.
  • the front propeller 30 and the rear propeller 20 rotate opposite to each other by the rotation of the first driven bevel gear 71 and the second driven bevel gear 72.
  • the front propeller 30 and the rear propeller 20 rotating opposite to each other generate propulsion water in the same direction because the wing angles are opposite to each other.
  • each propulsion water is generated while rotating in reverse.
  • the propulsion water generated when moving forward recovers the rotational energy of the fluid passing through the front propeller 30 as the propulsion force while the rear propeller 20 rotates in reverse and the propulsion performance is improved.
  • the steering direction 150 may be used to change the direction of propulsion force applied by the front propeller 30 and the rear propeller 20 to the hull 1 to change the traveling direction of the ship.
  • the front propeller 30 generates a propulsion water flow backward when it is advanced and receives a corresponding reaction force.
  • This force is transmitted to the first drive shaft 10 through the front thrust bearing 52 serves as a driving force.
  • the rear propeller 20 also receives a reaction force by generating a propulsion flow rearward when moving forward, and this force is also transmitted to the first drive shaft 10 directly connected to act as a driving force.
  • the propulsion force (reaction force) of the front propeller 30 is transmitted to the first drive shaft 10 through the rear thrust bearing 53, and the driving force of the rear propeller 20 is also directly connected to the first drive shaft 10. Is passed to.
  • the propulsion device of the present embodiment is transmitted to the hull 1 through the first drive shaft 10, both the driving force generated by the operation of the front propeller 30 and the rear propeller 20 when the ship is moving forward and backward. .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Gear Transmission (AREA)
PCT/KR2011/007026 2011-06-15 2011-09-23 선박용 추진장치 및 이를 포함하는 선박 WO2012173307A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2014515703A JP5801954B2 (ja) 2011-06-15 2011-09-23 船舶用推進装置及びこれを含む船舶
CN201180072412.0A CN103796915B (zh) 2011-06-15 2011-09-23 船舶推进装置及包括该装置的船舶
US14/126,381 US20140248153A1 (en) 2011-06-15 2011-09-23 Propulsion device for ship and ship having the same
EP11867726.9A EP2722269B1 (en) 2011-06-15 2011-09-23 Propulsion device for ship and ship having same

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KR102424713B1 (ko) * 2020-09-28 2022-07-25 최순길 선박용 추진력 증강 장치
CN113443111A (zh) * 2021-08-17 2021-09-28 深圳市先行电传动装备有限公司 一种电动船外挂机驱动结构

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KR20120138528A (ko) 2012-12-26
EP2722269A1 (en) 2014-04-23
US20140248153A1 (en) 2014-09-04
CN103796915B (zh) 2017-09-26
JP2014516869A (ja) 2014-07-17
CN103796915A (zh) 2014-05-14
EP2722269B1 (en) 2017-03-01
JP5801954B2 (ja) 2015-10-28
EP2722269A4 (en) 2016-01-13

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