US3196714A - Reduction transmission for marine machinery - Google Patents

Reduction transmission for marine machinery Download PDF

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Publication number
US3196714A
US3196714A US366986A US36698664A US3196714A US 3196714 A US3196714 A US 3196714A US 366986 A US366986 A US 366986A US 36698664 A US36698664 A US 36698664A US 3196714 A US3196714 A US 3196714A
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US
United States
Prior art keywords
gearing
turbine
reduction
propeller shaft
reduction transmission
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US366986A
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English (en)
Inventor
Lundstrom Stig Torsten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Stal AB
Original Assignee
Stal Laval Turbin AB
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 Stal Laval Turbin AB filed Critical Stal Laval Turbin AB
Application granted granted Critical
Publication of US3196714A publication Critical patent/US3196714A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • 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
    • 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
    • B63H23/10—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from more than one propulsion power unit
    • B63B2757/00—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19051—Single driven plural drives
    • Y10T74/19056—Parallel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19628—Pressure distributing

Definitions

  • the present invention relates to a reduction transmission and particularly to a type suitable for marine purposes.
  • Such transmission includes two turbines, one of which is a high pressure turbine and the other a low pressure turbine, the apparatus to be described being employed for the reduction in two steps of the turbine rotational speed to the rotational speed of the propeller shaft.
  • the invention is principally characterized by the arrangement of the first stage as epicyclic gearing with an input shaft coupled to one of the turbine shafts and extended through a hollow output shaft from the epicyclic gearing, this output shaft carrying between the epicyclic gearing and the turbine a gear pinion forming part of the second stage and meshed With a gear wheel fitted on the propeller shaft.
  • epicyclic gearing as above described makes the overall dimensions of the apparatus relatively small and also of relatively light weight and it is thus possible to combine the reduction gearing with reversing arrangements.
  • the epicyclic gears are placed outside the second reduction stage and as a result the base plate for the machinery will be small which means that the bed in the ship can be small, this tending to simplify the installation and the alignment of the machinery. Another advantage is that movements of the ships hull will be transferred to the machinery to a lesser extent.
  • FIG. 1 shows the apparatus according to the invention installed for marine purposes and as viewed in plan or from above and in part in horizontal section, the view being taken substantially on the line II of FIG. 2, looking in the direction of the arrows;
  • FIG. 2 shows the gearing drawn in another scale and viewed from the end
  • FIG. 3 is a horizontal sectional view, taken substantially on the line III-III in FIG. 2, looking in the direction of the arrows.
  • 1 indicates a high-pressure turbine
  • 2 indicates a low-pressure turbine provided with the condenser 3.
  • 3 indicates the turbine shafts.
  • 6 is indicated a propeller shaft.
  • the reduction of the turbine speed to the propeller shaft occurs in two stages. Since the reduction in speed occurs in the same manner for the two stages or for both turbines, the following description will be confined to the high-pressure turbine reduction.
  • the first stage comprises an epicyclic gearing 7 which is arranged on that side of the second-stage gearing that faces away from the turbine 1.
  • the second stage includes a gear wheel 9 which is fixed on the propeller shaft 8, and a gear pinion 1t) driven by an output shaft 11 from the epicyclic gearing '7.
  • the shaft 11 is hollow and has an extension 12 from shaft 5 passing through the shaft 11 to the epicyclic gearing, which per se is of a known type and hence is not described herein in detail.
  • the gearing is enclosed in a casing 13.
  • the thrust bearing for the propeller shaft is indicated at 14.
  • the axes 15, 16 and 17 of the gear pinions and the propeller shaft lie in the same horizontal plane.
  • the casing 13 is symmetrically arranged about a plane represented by the line 1818 in FIG. 2.
  • the casing 13 rests on four supports, shown at 19, 20, 21 and 22 which it will be seen are located at the center of each vertical side of the casing.
  • the epicyclio gearing sets shown respectively at 7 and 7a may be arranged so that the direction of rotation of the propeller shaft can be reversed.
  • the gear casing will be nearly symmetrical, which permits the erection of the apparatus on four supports in the machine bed. This means that the tooth contact between the gears will not be affected by distortions of the hull of the ship. Location of the several shafts in the same plane also facilitates alignment and manufacture since it is easy to secure distances between centers and to secure parallelism. This is of great importance in connection with gearing.
  • the symmetry of the casing prevents uneven temperature distribution and deformation.
  • a reduction transmission for marine machinery comprising, a high pressure turbine and a low pressure turbine for the reduction in two steps of the turbine rotational speed to propeller shaft rotational speed, the first stage having epicyclic gearing having an input shaft coupled to one of the turbine driven shafts, a hollow output shaft extending from the epicyclic gearing, said input shaft extending through the hollow shaft, the hollow shaft being provided with a pinion located between the epicy-clic gearing and the turbine, said pinion forming a part of the second stage, and a gear wheel on the propeller shaft in mesh with said pinion, the axis of the pinions and the propeller shaft being located in the same horizontal plane with a casing enclosing and supporting the gearing and which casing is mainly symmetrical about a vertical plane passing longitudinally through the propeller shaft, said gear casing being of rectangular shape and erected on four supports placed one at the center of each side of the rectangle formed by the gear casing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear Transmission (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Retarders (AREA)
US366986A 1963-05-13 1964-05-13 Reduction transmission for marine machinery Expired - Lifetime US3196714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE522963 1963-05-13

Publications (1)

Publication Number Publication Date
US3196714A true US3196714A (en) 1965-07-27

Family

ID=20265986

Family Applications (1)

Application Number Title Priority Date Filing Date
US366986A Expired - Lifetime US3196714A (en) 1963-05-13 1964-05-13 Reduction transmission for marine machinery

Country Status (5)

Country Link
US (1) US3196714A (enrdf_load_stackoverflow)
DE (1) DE1914498U (enrdf_load_stackoverflow)
GB (1) GB989161A (enrdf_load_stackoverflow)
NL (1) NL6404079A (enrdf_load_stackoverflow)
NO (1) NO115944B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454098A (en) * 1965-12-15 1969-07-08 Stal Laval Turbin Ab Arrangement in sea-going vessels powered with two counter-rotating propellers
JPS49111067A (enrdf_load_stackoverflow) * 1973-02-23 1974-10-23
US3958465A (en) * 1973-09-18 1976-05-25 Mannesmann Aktiengesellschaft Driving of a shaft with pendulum mount
US4022083A (en) * 1973-03-14 1977-05-10 Fa. Zahnraederfabrik Renk Ag Drive system for connecting two drive shafts to a single output shaft, as in a propeller drive for a watercraft
US4106603A (en) * 1975-03-29 1978-08-15 Vulkan Kupplungs -Und Getriebebau Bernhard Hackforth Arrangement for driving a working shaft by two combustion engines
US4114468A (en) * 1973-02-16 1978-09-19 Universal Power Corporation Drive means for electric generators particularly adapted in floating power plant

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1597475A (en) * 1977-09-22 1981-09-09 Vickers Shipbuilding Group Ltd Reversing gear transmissions
US4242925A (en) * 1978-07-17 1981-01-06 Westinghouse Electric Corp. Reversing apparatus
US4531429A (en) * 1983-06-20 1985-07-30 Westech Gear Corporation Marine transmission

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR930702A (fr) * 1946-07-16 1948-02-03 Const Aeronautiques Du Sudoues Réducteur de vitesse
US2708416A (en) * 1951-05-31 1955-05-17 Falk Corp Marine drive

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR930702A (fr) * 1946-07-16 1948-02-03 Const Aeronautiques Du Sudoues Réducteur de vitesse
US2708416A (en) * 1951-05-31 1955-05-17 Falk Corp Marine drive

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454098A (en) * 1965-12-15 1969-07-08 Stal Laval Turbin Ab Arrangement in sea-going vessels powered with two counter-rotating propellers
US4114468A (en) * 1973-02-16 1978-09-19 Universal Power Corporation Drive means for electric generators particularly adapted in floating power plant
JPS49111067A (enrdf_load_stackoverflow) * 1973-02-23 1974-10-23
US4022083A (en) * 1973-03-14 1977-05-10 Fa. Zahnraederfabrik Renk Ag Drive system for connecting two drive shafts to a single output shaft, as in a propeller drive for a watercraft
US3958465A (en) * 1973-09-18 1976-05-25 Mannesmann Aktiengesellschaft Driving of a shaft with pendulum mount
US4106603A (en) * 1975-03-29 1978-08-15 Vulkan Kupplungs -Und Getriebebau Bernhard Hackforth Arrangement for driving a working shaft by two combustion engines

Also Published As

Publication number Publication date
DE1914498U (de) 1965-04-22
GB989161A (en) 1965-04-14
NL6404079A (enrdf_load_stackoverflow) 1964-11-16
NO115944B (enrdf_load_stackoverflow) 1968-12-30

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