EP2669182A2 - Hélice de bateau avec pâles à pas variable individuellement - Google Patents

Hélice de bateau avec pâles à pas variable individuellement Download PDF

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Publication number
EP2669182A2
EP2669182A2 EP13165673.8A EP13165673A EP2669182A2 EP 2669182 A2 EP2669182 A2 EP 2669182A2 EP 13165673 A EP13165673 A EP 13165673A EP 2669182 A2 EP2669182 A2 EP 2669182A2
Authority
EP
European Patent Office
Prior art keywords
blade
angle
blades
ship
ship 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.)
Withdrawn
Application number
EP13165673.8A
Other languages
German (de)
English (en)
Other versions
EP2669182A3 (fr
Inventor
Arbogast Grunau
Edgar Streit
Matthias Bandorf
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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 Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2669182A2 publication Critical patent/EP2669182A2/fr
Publication of EP2669182A3 publication Critical patent/EP2669182A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/002—Propeller-blade pitch changing with individually adjustable blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/42—Steering or dynamic anchoring by propulsive elements; Steering or dynamic anchoring by propellers used therefor only; Steering or dynamic anchoring by rudders carrying propellers

Definitions

  • the invention relates to a ship's propeller as such has a hub portion and a plurality of blades connected thereto, wherein the respective blade is pivotable about a substantially radial blade-adjusting axis to the axis of rotation of the hub portion, for setting different Schaufelanstellwinkel.
  • a ship propeller which has a hub portion and a plurality of radially projecting blades attached thereto.
  • the blades are rotatably mounted on the hub portion such that they are synchronously pivotable about each to the propeller axis substantially radial blade axes to occupy this required angle of attack.
  • the pivoting takes place via an integrated in the hub section adjusting mechanism.
  • the invention has for its object to provide solutions by which it is possible to allow for a ship's propeller an adjustment of the angle of attack of the blades in a comparison with previous approaches improved way.
  • marine propeller includes propeller screws which dive into a liquid, in particular water, during operation and generate propulsive forces by displacing this fluid.
  • ship propeller also expressly includes drive screws for manned or unmanned underwater vehicles, in particular torpedoes and underwater observation vehicles.
  • the present invention separately adjustable leaves, it is possible to make a feed control on the setting of the angle of attack of the leaves. Furthermore, it becomes possible to make a shift in the Kavitationeinpound Anlagenes and thereby achieve a significant material conservation.
  • the inventive concept also offers the possibility of operating a ship in the field of an energetic Optimum by optimal settings of speed and blade angle can be realized for the current operating state.
  • the concept according to the invention makes it possible to steer and steer via a propeller.
  • the ship propeller according to the invention can thus replace a rudder or azipodmechanik.
  • the ship's propeller according to the invention also offers better maneuverability in connection with a rudder (separate adjustment of the pitch of the propeller blades).
  • the use of the ship propeller according to the invention also makes it possible to achieve tighter turning circles and an energetically improved idling operation by means of appropriate blade position (zero position with minimum flow resistance).
  • the ship's propeller is further designed so that it allows a change in the blade geometry and thus the flow characteristics of each sheet.
  • additional organs in particular extendable or sliding flaps.
  • the operation of the same can be done for example by piezoelectric actuators.
  • sensors and measuring devices into the ship's propeller, which allow, for example, a measurement of the pivoting moments effective around the blade pivot axes and an adjustment torque measurement.
  • the measured variables recorded in the area of the ship's propeller can be used in regulating the ship's operation, in particular for controlling the screw speed, the ship's speed, the acceleration and the bolt torque (n, v, a, M).
  • the inventive concept for the extension is suitable an azipod system. Since the inventive adjustment of the blade angle of attack allows an inclination of the force line of action relative to the rotor axis, the inventive concept basically also makes it possible to dispense with adjusting devices for pivoting the azipod.
  • the inventive design of the ship's propeller allows a more cost-effective operation of a watercraft.
  • the ship propeller is preferably designed so that the average blade angle can be set adjustable.
  • the ship's propeller is preferably set so that the Schaufananstell angle during the rotation of the ship propeller do not alternate.
  • a blade guide can be temporarily caused by the integrated into the hub portion adjusting mechanism, which leads to angle position specific alternating blade angle.
  • This mechanism may include a guide disc or web device to which corresponding Abgriffsorgane start that pivot as the blades in certain Anstellzutex.
  • the adjusting device is designed such that the respective blade occupies large angles of attack in a first angular range and assumes a reduced angle of attack in a second angular range diametrically opposite the rotor axis.
  • This makes it possible to set adjustable transverse force components within a substantially to generate level parallel to the water level.
  • the first angular range and the second angular range lie horizontally opposite each other with respect to the rotor axis.
  • the adjusting mechanism accommodated in the hub portion is preferably formed so as to include a portion received in the hub portion, i. comprising the propeller rotating servomotor.
  • a portion received in the hub portion i. comprising the propeller rotating servomotor.
  • the ship propeller according to the invention is particularly suitable for the realization of drive systems in which the hub portion of the ship's propeller sits directly on a motor shaft.
  • the blades can each be pivoted to a zero position.
  • the blades can be pivoted into a passive position in which the ship's propeller provides a reduced flow resistance.
  • This blade can then be controlled in the manner of a rudder and advantageously take influence on the ship's course.
  • the other blades can then be spent in alignments that ultimately generate low resistances and / or favorable reaction forces.
  • FIG. 1 shows a ship propeller according to the invention.
  • This comprises a hub section 4 provided for circulation about a propeller axis X, and blades 1, 2, 3 which are connected to the hub section 4 in such a manner that the respective blades 1, 2, 3 are positioned about an axis of adjustment transverse to the propeller axis X of the hub section 4 X1, X2, X3 is each pivotable.
  • the ship's propeller is equipped with a total of three blades 1, 2, 3.
  • the concept according to the invention is not limited to this number of blades; in particular, it can already be advantageously implemented with two blades as well as with more than three blades.
  • the ship propeller further comprises an adjusting device 5 shown here only schematically for adjusting the angle of attack of the individual blades 1, 2, 3.
  • the adjusting device 5 is designed such that this actuating conditions allows in which the blade angle W1, W2, W3 a blade 1, 2nd 3 alternates during the revolution of the hub portion 4 about the propeller axis X, wherein the resulting alternating blade angle of attack W1, W2, W3 are angularly position-specifically adjustable.
  • the blade angle of attack W1, W2, W3 extend around the control axes X1, X2, X3 and are shown slightly tilted in this illustration only for better illustration.
  • the adjusting device 5 is formed in the embodiment shown here so that the average blade angle can be set adjustable and also both positive and negative blade angle are adjustable. This concept makes it possible to generate differently sized and possibly differently directed thrust forces on the blades.
  • settings can be made according to which the respective blade 1, 2, 3 occupies large angles of attack in a first angular range S1 and assumes a reduced angle of attack in a second angular range S2 diametrically opposite the rotor axis X.
  • the first angular range S1 and the second angular range S2 are preferably located horizontally with respect to the rotor axis X.
  • the blades 1, 2, 3 schematically shown here can be equipped with actuators, in particular extendable flaps which allow a change in the blade geometry during operation.
  • sensor devices can be integrated into the ship's propeller and serve to detect measured variables in connection with the operation of the ship's propeller.
  • the adjustment device 5 indicated here comprises a servomotor which is accommodated in the hub section and rotates with it.
  • the servomotor controls an actuating mechanism which in turn is kinematically coupled to the blades 1, 2, 3.
  • the hub portion 4 is seated directly on a motor shaft.
  • the individual blades 1 - n can also be controlled separately, i. Not only for angle adjustment, but also as a drive member, the blades 1, 2, 3, n are optionally separately or in any combination in 360 ° endless operation about its own axis as so-called. Stand-alone "drive rudder" displayed. This control is possible in any combination of the blades 1 -n, also opposite directions of rotation are possible at the same time. Likewise, this drive function is possible both with a rotating main propeller axis x and when the main propeller axis x is stationary, while the axles x1-xn in this operating state form the "new" drive axle (s). To illustrate this, is located on each blade individually controlled to drive unit, preferably designed as a direct drive, with any other type of drive can also find use.
  • FIG. 2 is illustrated in the form of a further sketch, as can be generated via the ship propeller invention, a tilting moment M and an employee employed to the rotor axis X aligned propulsive force F.
  • the vanes 1, 2 are so alternately set to larger, or smaller angles of attack during the circulation in such a way that, for example, the blades during the passage of lying in this illustration, right of the rotor axis X web segment a larger angle of attack obtained as in the passage of the left segment in this illustration.
  • This makes it possible to give the line of action 1 of the driving force F with respect to the rotor axis X a job.
  • the magnitude of the force F, and the inclination angle W and the spatial position of the line of action 1 can be adjusted via the adjusting device 5.
  • the adjusting device 5 may be constructed so that the blade angle of each blade 1, 2 is adjustable by itself.
  • each blade can be coupled to the hub section 4 via its own actuating drive.
  • the respective actuating drive of each blade as a direct drive in which corresponding magnetic forces act on a counter-structure assigned to the blade 1, 2, for example via a ring coil system 5a revolving around the hub portion.
  • This counter-structure can be configured as a ring element 5b equipped with permanent magnets.
  • the ring element 5b coupled to the respective blade 1, 2 can be pivoted with a high dynamic range of adjustment.
  • the adjusting device 5 may also comprise locking means via which the blades 1, 2 can be locked in a set by the respective actuator pivot position.
  • locking means via which the blades 1, 2 can be locked in a set by the respective actuator pivot position.
  • This transmission mechanism may comprise, for example, a planet or eccentric gear which is driven by a respective blade associated with the hub portion with the servomotor running.
  • This servomotor may comprise a stator system anchored to the hub section 4, or may also be integrated into the respective blade 1, 2 in the area of the blade root.
  • a planetary gear in this case, for example, the blade with the planet and the ring gear can be coupled to the hub portion.
  • the servomotor driving the sun gear can sit in the blade or in the hub section.
  • the adjusting device is preferably designed as a sealed assembly with its own lubrication circuit.
  • the rotatable storage The blades on the hub portion is preferably carried out with the involvement of rolling bearings, in particular angular contact ball bearings or cross roller bearings.
  • the blades may be designed in their connection region to the hub portion 4 so that the propulsion forces acting on the blades during operation can advantageously be introduced into the hub portion 4 structurally.
  • FIG. 3 is shown in the form of a sketch an unmanned operated underwater inspection vehicle in which the propulsion and the steering using a ship's propeller P according to the invention is accomplished.
  • the ship's propeller P comprises a hub section 4 provided for circulation about a propeller axis X, and blades 1, 2, 3 which are connected to the hub section 4 in such a way that the respective blade 1, 2, 3 revolve around an axis X of the hub section 4 transverse adjusting axis X1, X2, X3 is pivotable in each case.
  • the ship propeller comprises an adjusting device 5, shown here only schematically, for adjusting the angle of attack of the individual blades 1, 2, 3.
  • the adjusting device 5 is designed such that it allows actuating states in which the blade angle of attack of a blade 1, 2, 3 during the rotation of the Nabenabitess 4 alternates about the propeller axis X with the resulting alternating Schaufelanstellwinkel during the orbit on your orbit on this angular position are specifically adjustable.
  • the setting device 5 is embodied here as an electromechanical adjusting device and comprises an electronic control via which radio-technically transmitted, predetermined course information corresponding, suitable for the current speed setting angle are calculated.
  • the ship propeller is designed such that in each case the entire blade is pivotally mounted. It is also possible to implement the invention so that only parts of the blades are geometrically modified to generate asymmetric propulsive forces.
  • the blades may have a portion rigidly connected to the hub portion on which an adjustable blade portion is pivotally mounted.
  • the adjusting mechanism can be designed so that a blade adjustment made by fixing can be fixed.
  • the adjustment mechanism can be designed so that upon reaching certain pivoting moments on the blades, these pivot into a stop position defined by a stop in which, if necessary, a part of the positioning forces required for positioning is derived via the stop.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP13165673.8A 2012-05-29 2013-04-29 Hélice de bateau avec pâles à pas variable individuellement Withdrawn EP2669182A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012208958A DE102012208958A1 (de) 2012-05-29 2012-05-29 Schiffspropeller

Publications (2)

Publication Number Publication Date
EP2669182A2 true EP2669182A2 (fr) 2013-12-04
EP2669182A3 EP2669182A3 (fr) 2015-11-18

Family

ID=48190296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13165673.8A Withdrawn EP2669182A3 (fr) 2012-05-29 2013-04-29 Hélice de bateau avec pâles à pas variable individuellement

Country Status (2)

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EP (1) EP2669182A3 (fr)
DE (1) DE102012208958A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68911225T2 (de) 1988-07-07 1994-06-16 Aerostar Marine Corp Automatisch verstellbare Schiffsschraube.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6177593A (ja) * 1984-09-22 1986-04-21 Mitsubishi Heavy Ind Ltd 舶用可変ピッチプロペラ装置
JPS61119495A (ja) * 1984-11-15 1986-06-06 Mitsubishi Heavy Ind Ltd 可変ピツチプロペラ
US5028210A (en) * 1990-01-05 1991-07-02 The United States Of America As Represented By The Secretary Of The Navy Propeller unit with controlled cyclic and collective blade pitch
US7048506B2 (en) * 2003-11-18 2006-05-23 The Boeing Company Method and apparatus for magnetic actuation of variable pitch impeller blades

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68911225T2 (de) 1988-07-07 1994-06-16 Aerostar Marine Corp Automatisch verstellbare Schiffsschraube.

Also Published As

Publication number Publication date
DE102012208958A1 (de) 2013-12-05
EP2669182A3 (fr) 2015-11-18

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