EP0438087B1 - Shafting strut for ship's propulsion - Google Patents

Shafting strut for ship's propulsion Download PDF

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Publication number
EP0438087B1
EP0438087B1 EP91100302A EP91100302A EP0438087B1 EP 0438087 B1 EP0438087 B1 EP 0438087B1 EP 91100302 A EP91100302 A EP 91100302A EP 91100302 A EP91100302 A EP 91100302A EP 0438087 B1 EP0438087 B1 EP 0438087B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
shaft
ship
drive
propeller
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
EP91100302A
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German (de)
French (fr)
Other versions
EP0438087A1 (en
Inventor
Klaus-Dieter Kempf
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.)
KEMPF KLAUS DIETER
Original Assignee
KEMPF KLAUS DIETER
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Filing date
Publication date
Application filed by KEMPF KLAUS DIETER filed Critical KEMPF KLAUS DIETER
Publication of EP0438087A1 publication Critical patent/EP0438087A1/en
Application granted granted Critical
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Anticipated expiration legal-status Critical
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    • 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

Definitions

  • the invention relates to a reversing gear for a ship's drive with counter-rotating propellers, the reversing gear being coupled on the input side to a drive shaft and on the output side to a hollow shaft surrounding the drive shaft, the front propeller on the end of the hollow shaft and the rear propeller of the pair on the end of the drive shaft counter-rotating propeller is attached.
  • the object of the invention is to equip a ship or a boat with counter-rotating propellers with little technical effort and in particular also to convert from a single-propeller drive to a drive with counter-rotating propellers.
  • the reversing gear is a liquid gear housed in a shaft block, which has a pump driven by the drive shaft and a motor driving the hollow shaft.
  • a reversing gear can easily be accommodated in a shaft bracket without affecting its aerodynamic shape. Since the reversing gear is no longer arranged directly behind the drive machine in the ship's hull, but closer to the propeller, the hollow shaft and its bearings can also be made simpler. When converting a single-propeller drive, only the existing shaft bracket is removed and the shaft bracket with the reversing gear is pushed onto the drive shaft. The drive shaft propeller seat can be reused.
  • the reversing gear can be coupled to the drive shaft on the input side using simple means, in particular via a ring spring tensioning set. It goes without saying that the connecting elements of the shaft bracket are adapted to the particular shape of the ship.
  • the pump and the motor can be in separate chambers of the shaft bracket connected by flow channels
  • the reversing gear is a liquid gear with a gear pump driven by the drive shaft 3, the driven wheel 24 of which sits on the drive shaft 3 and is connected to the ring spring tensioning set 5.
  • the other wheel 25 the gear pump is mounted on both sides via bearings 26 in the shaft bracket 1.
  • the gear pump 24, 25 is housed in a separate chamber of the shaft bracket 1, which chamber is connected via flow channels 27, 28 to a further chamber in which a gear motor is housed, the driving wheel 29 of which sits on the hollow shaft 16 surrounding the drive shaft 3 or is connected in one piece with this.
  • the other wheel 30 of the gear pump is supported on both sides via bearings 31 in the associated chamber of the shaft bracket 1.
  • the drive shaft 3 is supported in a bearing 33 in a partition 32 between the two chambers, which is only penetrated by the flow channels 27, 28.

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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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)

Description

Die Erfindung betrifft ein Wendegetriebe für einen Schiffsantrieb mit gegenläufigen Propellern, wobei das Wendegetriebe eingangsseitig an einer Antriebswelle und ausgangsseitig an eine die Antriebswelle umgebende Hohlwelle angekuppelt ist, wobei auf das Ende der Hohlwelle der vordere Propeller sowie auf das Ende der Antriebswelle der hintere Propeller des Paares gegenläufiger Propeller aufgesetzt ist.The invention relates to a reversing gear for a ship's drive with counter-rotating propellers, the reversing gear being coupled on the input side to a drive shaft and on the output side to a hollow shaft surrounding the drive shaft, the front propeller on the end of the hollow shaft and the rear propeller of the pair on the end of the drive shaft counter-rotating propeller is attached.

Sowohl bei seegehenden Schiffen als auch bei Sportbooten oder dergleichen ist es bekannt, die den Propeller tragende Antriebswelle in einem Wellenbock zwischenzulagern. Es ist ferner bekannt, daß die Drallverluste eines Propellers verringert werden können, wenn dieser Propeller durch ein Paar gegenläufiger Propeller ersetzt wird. Gegenläufige Propeller erfordern koaxiale Wellen und, wenn nur eine Antriebsmaschine vorhanden ist, ein Wendegetriebe. Das Wendegetriebe wird in der Regel unmittelbar hinter der Antriebsmaschine (DE 19 05 921) oder auch außerhalb des Schiffskörpers in einem schwenkbaren Wellenabschnitt (US 47 90 782) angeordnet. Es handelt sich dabei um mechanische Getriebe. Es ist aber auch schon vorgeschlagen worden, das Wendegetriebe in der Nabe eines der gegenläufigen Propeller unterzubringen (DE 37 26 242). Im letzteren Fall ergeben sich sehr große Nabendurchmesser, die sich ungünstig auf die Propellerströmung auswirken.Both in sea-going ships and in sports boats or the like, it is known to temporarily store the drive shaft carrying the propeller in a shaft bracket. It is also known that the swirl losses of a propeller can be reduced if this propeller is replaced by a pair of counter-rotating propellers. Counter-rotating propellers require coaxial shafts and, if there is only one engine, a reversing gear. The reversing gear is usually arranged directly behind the engine (DE 19 05 921) or outside the hull in a pivotable shaft section (US 47 90 782). These are mechanical gears. However, it has also been proposed to accommodate the reversing gear in the hub of one of the counter-rotating propellers (DE 37 26 242). In the latter case, there are very large hub diameters, which have an unfavorable effect on the propeller flow.

Aufgabe der Erfindung ist es, ein Schiff oder ein Boot bei geringem technischen Aufwand mit gegenläufigen Propellern auszurüsten und insbesondere auch von einem Einpropellerantrieb auf einen Antrieb mit gegenläufigen Propellern umzurüsten.The object of the invention is to equip a ship or a boat with counter-rotating propellers with little technical effort and in particular also to convert from a single-propeller drive to a drive with counter-rotating propellers.

Diese Aufgabe wird dadurch gelöst, daß das Wendegetriebe ein in einem Wellenbock untergebrachtes Flüssigkeitsgetriebe ist, das eine von der Antriebswelle angetriebene Pumpe und einen die Hohlwelle antreibenden Motor aufweist. - Ein Wendegetriebe kann ohne weiteres in einem Wellenbock untergebracht werden, ohne dessen strömungsgünstige Form zu beeinträchtigen. Da das Wendegetriebe nicht mehr unmittelbar hinter der Antriebsmaschine im Schiffsrumpf, sondern näher zum Propeller hin angeordnet ist, können auch die Hohlwelle und ihre Lagerungen einfacher ausgebildet sein. Beim Umrüsten eines Einpropellerantriebes wird lediglich der vorhandene Wellenbock entfernt und der Wellenbock mit dem Wendegetriebe auf die Antriebswelle aufgeschoben. Der Propellersitz der Antriebswelle kann wiederverwendet werden. Das Wendegetriebe kann eingangsseitig mit einfachen Mitteln, insbesondere über einen Ringfederspannsatz, an die Antriebswelle angekuppelt werden. Es versteht sich, daß die Anschlußelemente des Wellenbocks an die jeweilige Schiffsform angepaßt werden. Die Pumpe und der Motor können in gesonderten, durch Strömungskanäle verbundenen Kammern des WellenbocksThis object is achieved in that the reversing gear is a liquid gear housed in a shaft block, which has a pump driven by the drive shaft and a motor driving the hollow shaft. - A reversing gear can easily be accommodated in a shaft bracket without affecting its aerodynamic shape. Since the reversing gear is no longer arranged directly behind the drive machine in the ship's hull, but closer to the propeller, the hollow shaft and its bearings can also be made simpler. When converting a single-propeller drive, only the existing shaft bracket is removed and the shaft bracket with the reversing gear is pushed onto the drive shaft. The drive shaft propeller seat can be reused. The reversing gear can be coupled to the drive shaft on the input side using simple means, in particular via a ring spring tensioning set. It goes without saying that the connecting elements of the shaft bracket are adapted to the particular shape of the ship. The pump and the motor can be in separate chambers of the shaft bracket connected by flow channels

Im folgenden werden in der Zeichnung dargestellte Ausführungsbeispiele der Erfindung erläutert; es zeigen:

Fig. 1
einen Längsschnitt durch einen Wellenbock mit einem Flüssigkeitsgetriebe
Fig. 2
einen Schnitt in Richtung III - III durch den Gegenstand nach Figur 2,
Fig. 3
einen Schnitt in Richtung IV - IV durch den Gegenstand nach Figur 2.
Exemplary embodiments of the invention illustrated in the drawing are explained below; show it:
Fig. 1
a longitudinal section through a shaft bracket with a fluid transmission
Fig. 2
3 shows a section in the direction III-III through the object according to FIG. 2,
Fig. 3
a section in the direction IV - IV through the object of Figure 2.

Bei der in den Figuren 1 bis 3 dargestellten Ausführung bezeichnen gleiche Bezugszeichen gleiche Teile. Das Wendegetriebe ist ein Flüssigkeitsgetriebe mit einer von der Antriebswelle 3 angetriebenen Zahnradpumpe, deren angetriebenes Rad 24 auf der Antriebswelle 3 sitzt und mit dem Ringfederspannsatz 5 verbunden ist. Das andere Rad 25 der Zahnradpumpe ist beidseits über Lager 26 im Wellenbock 1 gelagert. Die Zahnradpumpe 24, 25 ist in einer gesonderten Kammer des Wellenbocks 1 untergebracht, welche Kammer über Strömungskanäle 27, 28 mit einer weiteren Kammer verbunden ist, in der ein Zahnradmotor untergebracht ist, dessen antreibendes Rad 29 auf der die Antriebswelle 3 umgebenden Hohlwelle 16 sitzt oder mit dieser einstückig verbunden ist. Das andere Rad 30 der Zahnradpumpe ist beidseits über Lager 31 in der zugeordneten Kammer des Wellenbocks 1 gelagert. Bei dieser Ausführung ist die Antriebswelle 3 in einer lediglich von den Strömungskanälen 27, 28 durchbrochenen Trennwand 32 zwischen den beiden Kammern in einem Lager 33 abgestützt.In the embodiment shown in Figures 1 to 3, the same reference numerals designate the same parts. The reversing gear is a liquid gear with a gear pump driven by the drive shaft 3, the driven wheel 24 of which sits on the drive shaft 3 and is connected to the ring spring tensioning set 5. The other wheel 25 the gear pump is mounted on both sides via bearings 26 in the shaft bracket 1. The gear pump 24, 25 is housed in a separate chamber of the shaft bracket 1, which chamber is connected via flow channels 27, 28 to a further chamber in which a gear motor is housed, the driving wheel 29 of which sits on the hollow shaft 16 surrounding the drive shaft 3 or is connected in one piece with this. The other wheel 30 of the gear pump is supported on both sides via bearings 31 in the associated chamber of the shaft bracket 1. In this embodiment, the drive shaft 3 is supported in a bearing 33 in a partition 32 between the two chambers, which is only penetrated by the flow channels 27, 28.

Claims (3)

  1. Reversing transmission for a ship drive with contrarotating propellers, wherein the reversing transmission is coupled at the input side to a drive shaft (3) and at the output side to a hollow shaft (16) enclosing the drive shaft, wherein the front propeller (21) of the pair of contrarotating propellers is placed on the end of the hollow shaft (16) and the rear propeller (22) of the pair of contrarotating propellers is placed on the end of the drive shaft (3), characterised thereby that the reversing transmission is a fluid transmission which is accommodated in a tailshaft bracket (1) and comprises a pump (24, 25) driven by the drive shaft (3) and a motor (29, 30) driving the hollow shaft (16).
  2. Reversing transmission according to claim 1, characterised thereby that the pump (24, 25) and the motor (29, 30) are arranged in separate chambers, which are connected by flow ducts (27, 28), of the tailshaft bracket (1).
  3. Reversing transmission according to claim 1 or 2, characterised by a geared pump, the driving gearwheel (24) of which is arranged on the drive shaft (3), and a geared motor, the driving wheel (29) of which is arranged on the hollow shaft (16).
EP91100302A 1990-01-15 1991-01-11 Shafting strut for ship's propulsion Expired - Lifetime EP0438087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9000354U 1990-01-15
DE9000354U DE9000354U1 (en) 1990-01-15 1990-01-15

Publications (2)

Publication Number Publication Date
EP0438087A1 EP0438087A1 (en) 1991-07-24
EP0438087B1 true EP0438087B1 (en) 1994-08-03

Family

ID=6850015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100302A Expired - Lifetime EP0438087B1 (en) 1990-01-15 1991-01-11 Shafting strut for ship's propulsion

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EP (1) EP0438087B1 (en)
DE (2) DE9000354U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232386A (en) * 1992-12-10 1993-08-03 Gifford William J Counter rotating strut drive
DE4244586C2 (en) * 1992-12-28 1996-09-05 Mannesmann Ag Ship propulsion with two counter-rotating screws
HRP20010329B1 (en) * 2001-05-10 2009-05-31 Popovac Tedy Propulsion of vessels by means of counter-rotative screws mounted on one driving shaft
US7070469B2 (en) * 2004-09-15 2006-07-04 James Stallings Dual propeller surface drive propulsion system for boats
EP2202143A1 (en) * 2008-12-23 2010-06-30 Comercial Gallega de Maquinaria S.L. Contra-rotating propeller propulsion system for ships
DE102015012687A1 (en) * 2015-10-02 2017-04-06 Heinrich Burgmer High - performance bevel gearboxes / Symmetrically closed bevel gearboxes or gearbox stages / with or without central support / differential gearbox
WO2018106288A1 (en) * 2016-12-07 2018-06-14 Stolper Peter R Strut mounted gear box for counter rotating propellers
US10906618B2 (en) * 2018-10-31 2021-02-02 Zf Friedrichshafen Ag Marine propulsion system supported by a strut

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE401338C (en) * 1923-07-15 1924-08-30 Carl Commentz Dr Ing Ship propulsion by two opposing screws
US2987031A (en) * 1959-07-24 1961-06-06 Conrad R Odden Dual propeller propulsion
US4050849A (en) * 1976-04-19 1977-09-27 Sheets Herman E Hydrodynamic transmission for ship propulsion
US4790782A (en) * 1988-02-26 1988-12-13 Brunswick Corporation Balanced marine surfacing drive
US4795382A (en) * 1988-02-29 1989-01-03 Brunswick Corporation Marine drive lower unit with thrust bearing rotation control

Also Published As

Publication number Publication date
EP0438087A1 (en) 1991-07-24
DE59102391D1 (en) 1994-09-08
DE9000354U1 (en) 1990-04-19

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