US2783398A - Electric drive for ship winches - Google Patents

Electric drive for ship winches Download PDF

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Publication number
US2783398A
US2783398A US458135A US45813554A US2783398A US 2783398 A US2783398 A US 2783398A US 458135 A US458135 A US 458135A US 45813554 A US45813554 A US 45813554A US 2783398 A US2783398 A US 2783398A
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United States
Prior art keywords
housing
ribs
motor
air
portions
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Expired - Lifetime
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US458135A
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English (en)
Inventor
Haas Karl
Zehdnicker Friedrich
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Siemens Schuckertwerke AG
Siemens Corp
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Siemens Corp
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Publication of US2783398A publication Critical patent/US2783398A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

Definitions

  • the electric motors for driving such machinery are usually equipped with a splashproof and totally enclosed housing.
  • Such an enclosure entails power losses so that relatively large and expensive machines are required.
  • airdraft cooled machines and to close the air vents by lids when the machine is not in operation.
  • the lids are not inadvertently left open, thus exposing the coil insulation and other interior parts to damage or destruction by humidity and other atmospheric conditions, the air-vent lids have been controlled by valves operating in dependence upon the starting devices of the enclosed motor.
  • Such apparatus are intricate and hence also expensive.
  • a drive for ship winches or similarly exposed machinery with an enclosed and surfacecooled squirrel-cage motor and give the housing of the motor a number of radial cooling ribs of which the majority are merging or integral with rib portions that extend in the axial direction along the back or top of the housing so that the cooling-air channels, formed by and between adjacent ribs, can be supplied with an air flow that passes, from the belly or bottom of the housing, on both sides peripherally around the housing to the back or top, and thence axially along the back or top, to finally return on both housing sides to the belly or bottom side.
  • the above-mentioned housing is enclosed in a water-proof shell with which an air-duct structure is tightly joined to form communications between the above-mentioned air channels and the ambient air.
  • the duct structure encloses a blower and is equipped with a closure for watertightly sealing the interior when the drive is not in operation.
  • Fig. 1 is a partly sectional side view of a loading winch drive
  • Fig. 2 is a cross section along the line II- II in Fig. 1.
  • the illustrated winch drive has a squirrel-cage motor of the enclosed and surface-cooled type.
  • the substantially cylindrical housing 1 of the motor is provided with a mounting flange 2 for attachment to the winch proper (not illustrated) so that the winch is driven by the horizontal shaft 2 of the motor.
  • the housing 1 is provided with exterior cooling ribs.
  • the ribs located near the two axial ends of the housing have a. portion 3 that extends peripherally around the bottom or belly side of the housing and merges near the back or top of the housing with axially directed rib portions 4.
  • the rib portions 4 merge with peripheral rib portions 3 at the other axial side of the housing.
  • a number of radial ribs 5 are located in the central portion of the housing, each extending around the belly side of the housing within a single radial plane and ending on the back of the housing at a point downwardly spaced from the lowermost rib portion 4.
  • the housing 1 and the ribs are enclosed by a shell 6 of sheet metal which is water tightly mounted on the housing.
  • the duct structure 7 extends beneath the belly side of the housing over the entire axial length of the housing and serves for conducting the incoming fresh air as well as the outgoing heated air.
  • a partition 12 divides the duct structure into two chambers 10 and 11 whose openings can be closed and sealed by means of a single lid 13.
  • the lid has hinges 14 on both sides of the machine so that the lid can be opened toward one or the other side depending upon the conditions at the particular location of the winch drive. Coupled with, or engageable by, the lid 13 is a limit switch 15 which is mounted in the air-outlet chamber 11 of the duct structure 7 and serves to disconnect the drive motor from its power supply when the lid 13 is closed.
  • a magnetic brake 16 is joined with the motor at the axial side opposite the power take-oil end of shaft 2'.
  • the terminals 17 for connecting the winch motor to its power supply, as well as the terminals 18 for the blower motor 9 and the terminals 19 for connection of the limit switch 15, are mounted beneath the magnetic brake 16 in a common connection box serviceable from the front side of the machine.
  • the blower assembly 8, 9 is designed as a unit which, as a whole, can readily be placed into or disassembled from the machine.
  • the cooling air inducted by the blower when the lid 13 is open, blows at first along the driving side of the machine through the channels formed by the radial cooling ribs 3, 4, 5 in the shell 6. This air flow passes from below over both sides of the motor housing 6 in the peripheral direction thereof until it reaches the back or top portion of the housing. Thence the flow is axially directed to the other side of the machine, where it is conducted back to the belly side and to the outlet chamber 11 of the duct structure 7.
  • a winch drive according to the invention is equipped with a fully enclosed squirrel-cage motor of the surface-cooled type, the overall dimensions of the driving machine can be kept small, aside from attaining the advantage that the interior of the motor remains closed and sealed not only during idle periods but also during operation of the machine.
  • the novel type of air ducting along the housing surface does not interfere with the usually desired addition of a magnetic brake. Besides, this type of air ducting also secures an excellent cooling of machines of large axial length as resulting, for instance, when the motor is a multiple-speed motor and has, within a single housing, a plurality of dynamoelectric systems operating with respectively difi'erent speeds of revolution upon a single motor shaft.
  • the novel type of air ducting through the channels formed by the ribs of the motor housing also facilitates providing the machine with forced cooling by means of an added blower unit, this being particularly favorable in view of the intermittent operation of winch motors.
  • a marine-machinery drive comprising an enclosed squirrel-cage motor having a housing substantially of cylindrical shape, said housing having exterior cooling ribs; a plurality of said ribs being spacially curved and 7 having each a first portion extending paripherally around one side and toward the opposite side of said housing, two second portions merging with the respective ends of saidiirst portion and extending near said opposite side in substantially parallel relation to the axial direction of saidhousing, and a third portion merging with said second portions and extending therefrom peripherally back and around said one side of said housing, whereby said plurality of ribs'form channels from one location of said one housing side to said opposite side and thence back to another location of said one side; a shell enclosing said housing and having openings near said one periphery side of said housing; and m'r impeller means joined with said shell near one of said two locations for circulating cooling air through said channels.
  • An electric drive for marine winches and the like machinery comprising an enclosed squirrel-cage motor having'a substantially cylindrical housing, said housing having exterior cooling ribs; a plurality of said ribs having each a first portion extending peripherally around the underside and upwardly toward the top side of said housing, two second portions merging with the respective ends of said first portion and extending on said top side ofisaid housing in substantially parallel relation to said axis, and a third portion merging with said two second portions in axially spaced relation to said first portion and extending from said second portions downwardly and around said underside of said housing, whereby said plurality of ribs form continuous cooling channels from one location of said underside to said top side and thence back to another location of said underside; a shell enclosing said housing and ribs, said shell having openings near said two locations; and air impeller means joined with said'shell nearone of said two locations for circulating cooling air through said channels.
  • a marine-machinery drive comprising an enclosed squirrel-cage motor having a housing substantially of cylindrical shape, said housing having ribs; a plurality of said ribs being specially curved and having each a first portion extending peripherally around one side and toward the opposite side of said housing, two second portions merging with the respective ends of said'first portion and extending near said opposite side in substantially parallel relation to the axial direction of said housing, and a third portion merging with said second portions and extending therefrom peripherally back and around said one side of said housing, whereby said plurality of ribs form channels from one location of said one housing side to said opposite side and thence back to another location of said one side; a shell enclosing said housing andhaving openings near said one periphery side of said housing; an air supply duct tightly joined with said shell to form part thereof, said duct having a chamber communicating with only one of said two locations of said housing; and air impeller means mounted in said duct chamber for passing cooling air through said shell openings and said channels.
  • a marine-machinery drive comprising an enclosed squirrel-cage motor having a housing substantially of cylindrical shape, said housing having exterior cooling ribs; a plurality of said ribs being specially curved and xterior cooling having each a first pontion extending peripherally around one side and toward the opposite side of said housing, two second portions merging with the respective ends of said first portion and extending near said opposite side in substantially parallel relation to the axial direction of said housing, and a third portion merging with said second portions and extending therefrom peripherally back and around said one side of said housing, whereby said plurality of ribs form channels from one location of said one housing side to said opposite side and thence back to another location of said one side; a shell enclosing said housing, a duct structure joined with said shell at said one side of said housing, said duct structure having two chambers communicating with said channels at said two locations respectively and having respective openings communicable with ambient air; air impeller means mounted in one of said two chambers for circulating ambient air through said channels; and
  • a drive as set forth in claim 4- comprising a motor control switch having actuating means engageable with said lid for preventing operation of said motor when said lid is closed.
  • said lid having two selectively operable hinges joining said lid at opposite sides thereof to said direct structure, whereby said lid can be opened toward one and the other side respectively.
  • An electric drive for marine winches and the like machinery comprising a totally enclosed drive motor having a normally horizontal axis and having a substantially cylindrical housing, said housing having exterior cooling ribs; a plurality of said ribs having each a first portion extending peripherally around the underside and upwardly toward the top side of said housing, two second portions merging with the respective ends of said first portion and extending on said top side of said housing in substantially parallel relation to said axis, and a third portion merging with said two second portions in axially spaced relation to said first portion and extending from said second portions downwardly and around said underside of said housing, whereby said plurality of ribs form continuous cooling channels from one location of said underside to said top side and thence back to another location of said underside; a shell enclosing said housing and ribs, a duct structure joined with said shell beneath said underside of said housing and having a partition so as to form two chamber communicating with said two locations respectively; air impeller means mounted in one of said chambers; said two chambers;
  • said ribs of said housing comprising at least one rib of substantially plane and arcuate shape disposed between said first and third portions of said specially curved ribs and extending peripherally around said one side of the housing periphery and toward said second portions of said spacially curved ribs.
  • An electric drive comprising an enclosed squirrelcage motor having a housing substantially of cylindrical shape, said housing having exterior cooling ribs; a plurality of said ribs being spacially curved and having each a first-portion extending peripherally around one side and toward the opposite side of said housing, two second portions merging with the respective ends of said first portion and extending near said opposite side in substantially parallel relation to-the axial direction of said housing, and a third portion merging with said second portions and extending therefrom peripherally back and around'said one side of said housing, whereby said plurality of ribs form channels from one location of said one housing side to said opposite side and thence back to anotherdocationof said one side.
  • An electric drive comprising an enclosed squirrelcage motor having a housing substantially of cylindrical shape, said housing having exterior cooling ribs; a plurality of said ribs being spacially curved and having each a first portion extending peripherally around one side and toward the opposite side of said housing, two second portions merging with the respective ends of said first portion and extending near said opposite side in substantially parallel relation to the axial direction of said housing, and a third portion merging with said second portions and extending therefrom peripherally back and around said one side of said housing, whereby said plurality of ribs form channels from one location of said one housing side to said opposite side and thence back to another location of said one side; and said ribs of said housing comprising a plurality of further ribs of substantially References Cited in the file of this patent UNITED STATES PATENTS 1,377,325 Durnford May 10, 1921 1,844,193 Uggla Feb. 9, 1932 FOREIGN PATENTS 450,045 Great Britain July 9, 1936 632,854 Germany July 20,

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)
US458135A 1953-09-25 1954-09-24 Electric drive for ship winches Expired - Lifetime US2783398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES35440A DE1003844B (de) 1953-09-25 1953-09-25 Elektrischer Antrieb fuer Schiffswinden od. dgl.

Publications (1)

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US2783398A true US2783398A (en) 1957-02-26

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US458135A Expired - Lifetime US2783398A (en) 1953-09-25 1954-09-24 Electric drive for ship winches

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US (1) US2783398A (enrdf_load_stackoverflow)
DE (1) DE1003844B (enrdf_load_stackoverflow)
NL (1) NL89725C (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912122A (en) * 1956-10-03 1959-11-10 Provincial Engineering Ltd Cooling system for power components of travelling cranes and the like
US3610975A (en) * 1969-07-30 1971-10-05 Westinghouse Electric Corp Dynamoelectric machine with improved cooling means
US3748507A (en) * 1971-12-02 1973-07-24 Gen Electric Variable speed drive having enhanced ventilation
US3749953A (en) * 1972-02-24 1973-07-31 Gen Electric Ventilated dynamoelectric machines
US3800173A (en) * 1972-09-19 1974-03-26 Gen Electric Dynamoelectric machine having improved ventilation
US4399382A (en) * 1980-07-16 1983-08-16 Wolfgang Volkrodt Electrical machine
US4839547A (en) * 1988-03-28 1989-06-13 Wertec Corporation Motor frame and motor with increased cooling capacity
US20130118705A1 (en) * 2011-11-16 2013-05-16 Reed Potter Device and Method for Heating a Pumped Fluid
US20140144362A1 (en) * 2010-10-26 2014-05-29 Gregory Mark Atkinson Power module for use in marine vessel, and wind-propelled vessel provided with said power module
US20160046467A1 (en) * 2013-02-04 2016-02-18 Siemag Tecberg Gmbh Cooling Ring
US20210039927A1 (en) * 2019-08-05 2021-02-11 Goodrich Corporation Rescue hoist cooling system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108315B (de) * 1960-03-10 1961-06-08 Hans Still Ag Geschlossener Elektromotor fuer den Antrieb von Hebezeugen mit Oberflaechenkuehlung
DE1126498B (de) * 1960-11-10 1962-03-29 Bbc Brown Boveri & Cie Kuehlanordnung fuer geschlossene, oberflaechengekuehlte elektrische Maschinen, insbesondere fuer den Antrieb von Ladewinden auf Schiffen
CA2087763C (en) * 1992-02-11 2002-07-02 Jimmy Cochimin Stator frame for dynamoelectric machine and method for making same
FR2838252B1 (fr) * 2002-04-03 2005-08-05 Leroy Somer Moteurs Machine electrique, notamment generatrice pour eolienne, comportant des ailettes de refroisissement s'etendant sensiblement perpendiculairement a l'axe de rotation du rotor
JP6208652B2 (ja) 2014-12-09 2017-10-04 ファナック株式会社 ファンを有する電動機の冷却機構

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1377325A (en) * 1917-12-06 1921-05-10 Submersible & J L Motors Ltd Electric motor
US1844193A (en) * 1926-09-13 1932-02-09 Luth & Rosens Elek Ska Aktiebo Electric machine
GB450045A (en) * 1935-05-31 1936-07-09 English Electric Co Ltd Improvements in fan cooled dynamo electric machines
DE632854C (de) * 1933-01-22 1936-07-20 Siemens Schuckertwerke Akt Ges Oberflaechengekuehlte elektrische Maschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE516103C (de) * 1931-01-17 Siemens Schuckertwerke Akt Ges Druckknopfsteuerung fuer elektrische Mehrmotorenantriebe
CH91990A (de) * 1919-07-15 1921-12-01 Bbc Brown Boveri & Cie Induktionsregler mit künstlicher Luftkühlung.
DE592602C (de) * 1928-03-15 1934-02-10 Clarke Chapman And Company Ltd Schutzeinrichtung fuer elektrische Motoren fuer Schiffswinden oder aehnliche Bordmaschinen
DE654846C (de) * 1933-01-05 1937-12-31 Aeg Einrichtung zur Kuehlung elektrischer Maschinen mittels Fremdluefter
CH265029A (de) * 1948-08-05 1949-11-15 Oerlikon Maschf Elektrisch gesteuerter Umkehrantrieb.
DE819282C (de) * 1950-04-18 1951-10-31 Oesterreichische Elektroindust Geschlossene, aussenbelueftete elektrische Maschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1377325A (en) * 1917-12-06 1921-05-10 Submersible & J L Motors Ltd Electric motor
US1844193A (en) * 1926-09-13 1932-02-09 Luth & Rosens Elek Ska Aktiebo Electric machine
DE632854C (de) * 1933-01-22 1936-07-20 Siemens Schuckertwerke Akt Ges Oberflaechengekuehlte elektrische Maschine
GB450045A (en) * 1935-05-31 1936-07-09 English Electric Co Ltd Improvements in fan cooled dynamo electric machines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912122A (en) * 1956-10-03 1959-11-10 Provincial Engineering Ltd Cooling system for power components of travelling cranes and the like
US3610975A (en) * 1969-07-30 1971-10-05 Westinghouse Electric Corp Dynamoelectric machine with improved cooling means
US3748507A (en) * 1971-12-02 1973-07-24 Gen Electric Variable speed drive having enhanced ventilation
US3749953A (en) * 1972-02-24 1973-07-31 Gen Electric Ventilated dynamoelectric machines
US3800173A (en) * 1972-09-19 1974-03-26 Gen Electric Dynamoelectric machine having improved ventilation
US4399382A (en) * 1980-07-16 1983-08-16 Wolfgang Volkrodt Electrical machine
US4839547A (en) * 1988-03-28 1989-06-13 Wertec Corporation Motor frame and motor with increased cooling capacity
US20140144362A1 (en) * 2010-10-26 2014-05-29 Gregory Mark Atkinson Power module for use in marine vessel, and wind-propelled vessel provided with said power module
US9376187B2 (en) * 2010-10-26 2016-06-28 Eco Marine Power Co. Ltd. Power module for use in marine vessel, and wind-propelled vessel provided with said power module
US20130118705A1 (en) * 2011-11-16 2013-05-16 Reed Potter Device and Method for Heating a Pumped Fluid
US20160046467A1 (en) * 2013-02-04 2016-02-18 Siemag Tecberg Gmbh Cooling Ring
US20210039927A1 (en) * 2019-08-05 2021-02-11 Goodrich Corporation Rescue hoist cooling system
US10961090B2 (en) * 2019-08-05 2021-03-30 Goodrich Corporation Rescue hoist cooling system

Also Published As

Publication number Publication date
DE1003844B (de) 1957-03-07
NL89725C (enrdf_load_stackoverflow) 1958-12-15

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