GB2094911A - Marine gear system which can be shifted from fast mode operation to slow mode operation - Google Patents

Marine gear system which can be shifted from fast mode operation to slow mode operation Download PDF

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Publication number
GB2094911A
GB2094911A GB8204328A GB8204328A GB2094911A GB 2094911 A GB2094911 A GB 2094911A GB 8204328 A GB8204328 A GB 8204328A GB 8204328 A GB8204328 A GB 8204328A GB 2094911 A GB2094911 A GB 2094911A
Authority
GB
United Kingdom
Prior art keywords
gear system
clutch
shaft
planetary
branch
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.)
Granted
Application number
GB8204328A
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GB2094911B (en
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.)
Renk GmbH
Original Assignee
Renk GmbH
Zahnraederfabrik Renk AG
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 Renk GmbH, Zahnraederfabrik Renk AG filed Critical Renk GmbH
Publication of GB2094911A publication Critical patent/GB2094911A/en
Application granted granted Critical
Publication of GB2094911B publication Critical patent/GB2094911B/en
Expired 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/14—Gearings for reversal only
    • 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
    • B63H23/08—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing with provision for reversing drive

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

Abstract

A marine gear system is provided with a clutch (5) through which a driving shaft (1) can be connected to an output shaft (18). In order to shift to slow mode operation a planetary gear system (9) is provided having an annular wheel (10) which can be held stationary in order that the output shaft (18) can be driven from the primary side of the clutch (5) by way of the planetary gear system. The gear system has two similar branches, one for motion ahead and the other for motion astern. <IMAGE>

Description

SPECIFICATION Marine gear system which can be shifted from fast mode operation to slow mode operation This invention relates to a marine gear system which can be shifted from high-speed operation to low-speed operation and which comprises a drive shaft, a take-off shaft, a clutch arranged in the kinematic transmission between these two shafts, and a planetary gear system comprising a planetary gearset with a planet carrier which is connected to the secondary part of the clutch.
In one such marine gear system, as described in German patent specification DE-AS 29 1 3 375, the planetary gear system has two planetary gearsets with the annular wheels connected to one another by way of a hydrodynamic control device. By this means a driven pinion can be driven from the driving motor selectively, either directly by way of the clutch for fast mode operation or, with the clutch disengaged, by way of the two planetary gearsets of the planetary gear system for slow mode operation.
It is an object of the present invention to provide a simplified and structurally smaller gear system.
This is achieved in accordance with the present invention by a marine gear system which can be shifted from fast mode operation to slow mode operation, comprising a driving shaft, a take-off shaft, a clutch arranged in the kinematic transmission between the said shafts, and a planetary gear system with a planetary gearset comprising a sun-wheel and a planet carrier, in which the planet carrier is connected to the secondary part of the clutch, in which the sunwheel of the planetary gearset is connected to the primary part of the clutch, and in which the annular wheel of the planetary gearset can be held stationary by a brake.
Preferably the system is one in which the secondary part of the clutch and the planet carrier are connected to each other by way of a hollow intermediate shaft which carries a driven pinion driving the take-off shaft, the driven pinion being positioned between the clutch and the planetary gear system, and in which the sun-wheel and the primary part of the clutch are connected to each other by way of a connecting shaft which extends through the hollow intermediate shaft.
Desirably, the gear system is arranged for operation as a change-over gear system, in which the driving shaft is provided with a driving pinion, said clutch and planetary gearset are in a first branch of the gear system, a second clutch is provided in a second branch having its secondary part kinematically connected to the take-off shaft, the primary parts of the two clutches are kinematically connected to each other, and the driving pinion is connected to the primary part of one only of said clutches.
In a preferred embodiment the branch of the gear system which contains the second clutch is provided with a planetary gear system in similar manner to the provision of the planetary gear system in the first branch.
In order that the invention may be fully understood one presently preferred embodiment of marine gear system in accordance with the invention will now be described by way of example and with reference to the accompanying drawing which is a schematic sectional representation of this gear system.
The drawing shows a reversible or change-over gear system comprising a driving shaft 1 fitted with a driving pinion 2 which is in meshing engagement with external teeth 3 on the primary part 4 of a clutch 5. The secondary part 6 of the clutch 5 is connected by way of a hollow intermediate shaft 14 with a planet carrier 7 of a planetary gearest 8 of a planetary gear system 9.
The annular wheel 10 of the planetary gearset 8 can be held stationary with respect to the gear system casing 12 by means of a brake 1 The sun-wheel 1 3 of the planetary gearset 8 is connected by way of a connecting shaft 1 5 to the primary part 4 of the clutch 5. The connecting shaft 1 5 extends through the hollow intermediate shaft 14. Between the clutch 5 and the planetary gear system 9 there is positioned, on the hollow intermediate shaft 14, a driven pinion 1 6 which is in meshing engagement with a gear wheel 1 7 of a take-off shaft 18 which functions to drive the propeller shaft of the vessel.
First of all, the marine gear system will be described with reference to the branch of the gear system shown at the right-hand side of the drawing. This branch of the gear system serves for example for the forward travel of the vessel. On the left-hand side of the drawing there is shown a similar branch which serves for the astern travel of the vessel. The same elements in the two branches of the gear system are shown by the same reference numbers. The clutch 5 of the righthand branch has a second set of external teeth 21 which are in meshing engagement with the primary part 4 of a clutch 5 in the left-hand branch. For reasons of clarity in the drawing the teeth 21 and 22 are shown spaced from each other. For fast forward movement the clutch shown in the right-hand half of the drawing is engaged. By this means a torque is transmitted to the take-off shaft 18 from the driving shaft 1 by way of the clutch 5 and the driven pinion 16. For fast movement astern the clutch 5 shown in the right-hand side of the drawing is disengaged and the clutch shown in the left-hand half of the drawing is engaged. Consequently, torque is transmitted to the take-off shaft 1 8 through the left-hand branch.
For slow mode travel the two clutches 5 must be disengaged and brake 11 must be applied, either to the right-hand planetary gear system 9 for forward motion or to the left-hand planetary gear system 9 for motion astern.
1. A marine gear system which can be shifted from fast mode operation to slow mode operation, comprising a driving shaft, a take-off shaft, a
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Marine gear system which can be shifted from fast mode operation to slow mode operation This invention relates to a marine gear system which can be shifted from high-speed operation to low-speed operation and which comprises a drive shaft, a take-off shaft, a clutch arranged in the kinematic transmission between these two shafts, and a planetary gear system comprising a planetary gearset with a planet carrier which is connected to the secondary part of the clutch. In one such marine gear system, as described in German patent specification DE-AS 29 1 3 375, the planetary gear system has two planetary gearsets with the annular wheels connected to one another by way of a hydrodynamic control device. By this means a driven pinion can be driven from the driving motor selectively, either directly by way of the clutch for fast mode operation or, with the clutch disengaged, by way of the two planetary gearsets of the planetary gear system for slow mode operation. It is an object of the present invention to provide a simplified and structurally smaller gear system. This is achieved in accordance with the present invention by a marine gear system which can be shifted from fast mode operation to slow mode operation, comprising a driving shaft, a take-off shaft, a clutch arranged in the kinematic transmission between the said shafts, and a planetary gear system with a planetary gearset comprising a sun-wheel and a planet carrier, in which the planet carrier is connected to the secondary part of the clutch, in which the sunwheel of the planetary gearset is connected to the primary part of the clutch, and in which the annular wheel of the planetary gearset can be held stationary by a brake. Preferably the system is one in which the secondary part of the clutch and the planet carrier are connected to each other by way of a hollow intermediate shaft which carries a driven pinion driving the take-off shaft, the driven pinion being positioned between the clutch and the planetary gear system, and in which the sun-wheel and the primary part of the clutch are connected to each other by way of a connecting shaft which extends through the hollow intermediate shaft. Desirably, the gear system is arranged for operation as a change-over gear system, in which the driving shaft is provided with a driving pinion, said clutch and planetary gearset are in a first branch of the gear system, a second clutch is provided in a second branch having its secondary part kinematically connected to the take-off shaft, the primary parts of the two clutches are kinematically connected to each other, and the driving pinion is connected to the primary part of one only of said clutches. In a preferred embodiment the branch of the gear system which contains the second clutch is provided with a planetary gear system in similar manner to the provision of the planetary gear system in the first branch. In order that the invention may be fully understood one presently preferred embodiment of marine gear system in accordance with the invention will now be described by way of example and with reference to the accompanying drawing which is a schematic sectional representation of this gear system. The drawing shows a reversible or change-over gear system comprising a driving shaft 1 fitted with a driving pinion 2 which is in meshing engagement with external teeth 3 on the primary part 4 of a clutch 5. The secondary part 6 of the clutch 5 is connected by way of a hollow intermediate shaft 14 with a planet carrier 7 of a planetary gearest 8 of a planetary gear system 9. The annular wheel 10 of the planetary gearset 8 can be held stationary with respect to the gear system casing 12 by means of a brake 1 The sun-wheel 1 3 of the planetary gearset 8 is connected by way of a connecting shaft 1 5 to the primary part 4 of the clutch 5. The connecting shaft 1 5 extends through the hollow intermediate shaft 14. Between the clutch 5 and the planetary gear system 9 there is positioned, on the hollow intermediate shaft 14, a driven pinion 1 6 which is in meshing engagement with a gear wheel 1 7 of a take-off shaft 18 which functions to drive the propeller shaft of the vessel. First of all, the marine gear system will be described with reference to the branch of the gear system shown at the right-hand side of the drawing. This branch of the gear system serves for example for the forward travel of the vessel. On the left-hand side of the drawing there is shown a similar branch which serves for the astern travel of the vessel. The same elements in the two branches of the gear system are shown by the same reference numbers. The clutch 5 of the righthand branch has a second set of external teeth 21 which are in meshing engagement with the primary part 4 of a clutch 5 in the left-hand branch. For reasons of clarity in the drawing the teeth 21 and 22 are shown spaced from each other. For fast forward movement the clutch shown in the right-hand half of the drawing is engaged.By this means a torque is transmitted to the take-off shaft 18 from the driving shaft 1 by way of the clutch 5 and the driven pinion 16. For fast movement astern the clutch 5 shown in the right-hand side of the drawing is disengaged and the clutch shown in the left-hand half of the drawing is engaged. Consequently, torque is transmitted to the take-off shaft 1 8 through the left-hand branch. For slow mode travel the two clutches 5 must be disengaged and brake 11 must be applied, either to the right-hand planetary gear system 9 for forward motion or to the left-hand planetary gear system 9 for motion astern. CLAIMS
1. A marine gear system which can be shifted from fast mode operation to slow mode operation, comprising a driving shaft, a take-off shaft, a clutch arranged in the kinematic transmission between the said shafts, and a planetary gear system with a planetary gearset comprising a sunwheel and a planet carrier, in which the planet carrier is connected to the secondary part of the clutch, in which the sun-wheel of the planetary gearset is connected to the primary part of the clutch, and in which the annular wheel of the planetary gearset can be held stationary by a brake.
2. A marine gear system as claimed in claim 1, in which the secondary part of the clutch and the planet carrier are connected to each other by way of a hollow intermediate shaft which carries a driven pinion driving the take-off shaft, the driven pinion being positioned between the clutch and the planetary gear system, and in which the sunwheel and the primary part of the clutch are connected to each other by way of a connecting shaft which extends through the hollow intermediate shaft.
3. A marine gear system as claimed in claim 1 or 2, arranged for operation as a change-over gear system, in which the driving shaft is provided with a driving pinion, said clutch and planetary gearset are in a first branch of the gear system, a second clutch is provided in a second branch having its secondary part kinematically connected to the take-off shaft, the primary parts of the two clutches are kinematically connected to each other, and the driving pinion is connected to the primary part of one only of said clutches.
4. A marine gear system as claimed in claim 3, in which the branch of the gear system which contains the second clutch is provided with a planetary gear system in similar manner to the provision of the planetary gear system in the first branch.
5. A marine gear system substantially as hereinbefore described with reference to the accompanying drawing.
GB8204328A 1981-03-14 1982-02-15 Marine gear system which can be shifted from fast mode operation to slow mode operation Expired GB2094911B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3109873A DE3109873C2 (en) 1981-03-14 1981-03-14 Marine gearbox with multiple switching positions

Publications (2)

Publication Number Publication Date
GB2094911A true GB2094911A (en) 1982-09-22
GB2094911B GB2094911B (en) 1985-02-13

Family

ID=6127264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8204328A Expired GB2094911B (en) 1981-03-14 1982-02-15 Marine gear system which can be shifted from fast mode operation to slow mode operation

Country Status (5)

Country Link
DE (1) DE3109873C2 (en)
ES (1) ES509832A0 (en)
FR (1) FR2501621B1 (en)
GB (1) GB2094911B (en)
IT (1) IT1149653B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041447A1 (en) * 1997-03-14 1998-09-24 Westerbeke Corporation Marine auxiliary power supply system
RU2516770C2 (en) * 2012-08-28 2014-05-20 Открытое акционерное общество "Научно-производственное объединение "Сатурн" Marine reverse reduction gear
RU2540226C1 (en) * 2013-11-05 2015-02-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" Gear reverse reducer
RU2670838C1 (en) * 2017-08-14 2018-10-25 Публичное акционерное общество "Научно-производственное объединение "Сатурн" Summing reverse gearbox
RU188507U1 (en) * 2018-11-12 2019-04-16 Публичное Акционерное Общество "Одк-Сатурн" TWO-SPEED SHIP REDUCER
CN110345204A (en) * 2019-06-13 2019-10-18 南京高精船用设备有限公司 Half slip clutch gear-box

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840084A1 (en) * 1998-09-03 2000-03-09 Zahnradfabrik Friedrichshafen Marine gear

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB600791A (en) * 1944-02-15 1948-04-19 Applic Des Brevets Cotal Soc D Improvements in reversing and change speed-gears particularly designed for ships
FR1154773A (en) * 1955-07-15 1958-04-16 Zahnradfabrik Friedrichshafen Reversing mechanism with transmission gear trains for boats or ships
US3256751A (en) * 1962-10-22 1966-06-21 Gen Motors Corp Transmission
DE2758555C2 (en) * 1977-12-23 1980-01-03 Mannesmann Ag, 4000 Duesseldorf Two-stage gearbox for driving a generator from a ship propulsion system
US4242925A (en) * 1978-07-17 1981-01-06 Westinghouse Electric Corp. Reversing apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041447A1 (en) * 1997-03-14 1998-09-24 Westerbeke Corporation Marine auxiliary power supply system
RU2516770C2 (en) * 2012-08-28 2014-05-20 Открытое акционерное общество "Научно-производственное объединение "Сатурн" Marine reverse reduction gear
RU2540226C1 (en) * 2013-11-05 2015-02-10 Открытое акционерное общество "Научно-производственное объединение "Сатурн" Gear reverse reducer
RU2670838C1 (en) * 2017-08-14 2018-10-25 Публичное акционерное общество "Научно-производственное объединение "Сатурн" Summing reverse gearbox
RU2670838C9 (en) * 2017-08-14 2018-11-29 Публичное акционерное общество "Научно-производственное объединение "Сатурн" Summing reverse gearbox
RU188507U1 (en) * 2018-11-12 2019-04-16 Публичное Акционерное Общество "Одк-Сатурн" TWO-SPEED SHIP REDUCER
CN110345204A (en) * 2019-06-13 2019-10-18 南京高精船用设备有限公司 Half slip clutch gear-box

Also Published As

Publication number Publication date
FR2501621B1 (en) 1989-05-05
FR2501621A1 (en) 1982-09-17
GB2094911B (en) 1985-02-13
IT1149653B (en) 1986-12-03
ES8303219A1 (en) 1983-02-01
IT8219668A0 (en) 1982-02-15
DE3109873A1 (en) 1982-10-14
ES509832A0 (en) 1983-02-01
DE3109873C2 (en) 1987-01-15

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PCNP Patent ceased through non-payment of renewal fee