EP0250923A3 - Adjustment mechanism - Google Patents

Adjustment mechanism Download PDF

Info

Publication number
EP0250923A3
EP0250923A3 EP87108143A EP87108143A EP0250923A3 EP 0250923 A3 EP0250923 A3 EP 0250923A3 EP 87108143 A EP87108143 A EP 87108143A EP 87108143 A EP87108143 A EP 87108143A EP 0250923 A3 EP0250923 A3 EP 0250923A3
Authority
EP
European Patent Office
Prior art keywords
shaft
gear
blades
machine shaft
adjustment
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Withdrawn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
EP87108143A
Other languages
German (de)
French (fr)
Other versions
EP0250923A2 (en
Inventor
Gerd Witte
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.)
Balcke Duerr AG
Original Assignee
Balcke Duerr 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 Balcke Duerr AG filed Critical Balcke Duerr AG
Publication of EP0250923A2 publication Critical patent/EP0250923A2/en
Publication of EP0250923A3 publication Critical patent/EP0250923A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources

Abstract

Eine Verstelleinrichtung für verstellbare Laufschaufeln ent­ hält an einer Maschinenwelle (2) ein erstes Zahnrad (34) und an einer Verstellwelle (4) ein zweites Zahnrad (44), wobei über ein Getriebe (38) sowie zwei Bremseinrichtungen (12, 22) eine Relativdrehung zwischen Maschinenwelle (2) und Verstell­ welle (4) einleitbar ist. Es soll die Aufgabe gelöst werden, bei einfacher Konstruktion und mit gutem Wirkungsgrad die Verstellung der Laufschaufeln zu ermöglichen, wobei eine gute Zugänglichkeit gegeben sein soll. Es wird vorgeschlagen, daß zwischen dem Getriebe (38) und der Maschinenwelle (2) oder der Verstellwelle (4) eine weitere Bremse (40, 41) vorgesehen ist, mittels welcher der synchrone Lauf der Verstellwelle (4) mit der Maschinenwelle (2) im Normalbetrieb aufrecht erhalten wird, solange keine Verstellung der Laufschaufeln (64) erfol­ gen soll. Diese weitere Bremse (40, 41) ist derart ausgebil­ det, daß bei Betätigung der ersten Bremseinrichtung (12) oder der zweiten Bremseinrichtung (22) das Bremsmoment der weiteren Bremse (40, 41) überwunden wird. An adjustment device for adjustable blades holds on a machine shaft (2) a first gear (34) and on an adjusting shaft (4), a second gear (44), wherein via a gear (38) and two braking devices (12, 22) a relative rotation between the machine shaft (2) and the adjuster shaft (4) can be introduced. The task is to be solved with simple construction and with good efficiency To allow adjustment of the blades, being a good one Accessibility should be given. It is suggested that between the gear (38) and the machine shaft (2) or the Adjustment shaft (4) a further brake (40, 41) is provided, by means of which the synchronous running of the adjusting shaft (4) with the machine shaft (2) is maintained in normal operation as long as the blades (64) are not adjusted should. This further brake (40, 41) is designed in this way det that when the first braking device (12) or the second braking device (22) the braking torque of the other Brake (40, 41) is overcome.

EP87108143A 1986-06-21 1987-06-05 Adjustment mechanism Withdrawn EP0250923A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620879 1986-06-21
DE3620879A DE3620879C1 (en) 1986-06-21 1986-06-21 Adjustment device

Publications (2)

Publication Number Publication Date
EP0250923A2 EP0250923A2 (en) 1988-01-07
EP0250923A3 true EP0250923A3 (en) 1990-05-02

Family

ID=6303449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108143A Withdrawn EP0250923A3 (en) 1986-06-21 1987-06-05 Adjustment mechanism

Country Status (4)

Country Link
US (1) US4772182A (en)
EP (1) EP0250923A3 (en)
JP (1) JPS6312805A (en)
DE (1) DE3620879C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4134055C2 (en) * 1991-10-15 1997-05-22 Klein Schanzlin & Becker Ag Variable and reduction gears for turbomachines
DE4306141A1 (en) * 1993-02-27 1994-10-13 Klein Schanzlin & Becker Ag Adjustment device for propeller pumps
GB9408476D0 (en) * 1994-04-28 1994-06-22 Rolls Royce Plc Blade pitch change mechanism
ATE257218T1 (en) * 1998-08-13 2004-01-15 Neg Micon As CONTROL DEVICE FOR ADJUSTING AND STOPPING THE BLADES OF A WIND TURBINE
KR100306208B1 (en) * 1998-09-16 2001-12-20 조한원 Wing angle control apparatus of rotatable body
CN100337029C (en) * 2005-01-10 2007-09-12 尤文峰 Combined wind driver
GB2429342A (en) * 2005-08-17 2007-02-21 Drivetec Turbine powered electricity generation apparatus
EP1998042A1 (en) * 2007-05-30 2008-12-03 ICEC Holding AG Rotor unit and its application
US8231345B2 (en) * 2007-09-04 2012-07-31 Honda Motor Co., Ltd. Fan blade pitch change assembly
WO2014164891A1 (en) * 2013-03-11 2014-10-09 Illing Engineering Service Wind turbine control system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964102A (en) * 1927-12-17 1934-06-26 Bendix Res Corp Variable pitch and reversible aeroplane propeller
US2423400A (en) * 1941-06-06 1947-07-01 Harry J Nichols Propeller
US2738045A (en) * 1950-02-11 1956-03-13 Curtiss Wright Corp Clutch mechanism
FR2525285A1 (en) * 1982-04-20 1983-10-21 Durand Engrenages Variable pitch hydraulic turbine - has blade holder rotated by actuator sleeve with planetary gearing carrying brake

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2108660A (en) * 1938-02-15 Variable pitch and reversing pro
FR984485A (en) * 1943-10-04 1951-07-06 Pitch variation systems for propellers, autogyro blades or helical pitchers
GB569056A (en) * 1944-06-10 1945-05-02 Percy Octavius Rowlands Improvements in marine screw propellers of the variable pitch and reversing type
DE877565C (en) * 1950-11-18 1953-05-26 Wilhelm Wels Control for controllable pitch propeller
DE897904C (en) * 1951-02-01 1953-11-26 Demag Ag Adjusting device for blades that can be adjusted during operation of axially loaded impellers, in particular by fans
US3794441A (en) * 1972-09-11 1974-02-26 N Johnson Variable pitch propeller
US4047842A (en) * 1976-04-19 1977-09-13 Curtiss-Wright Corporation Variable pitch mechanism for fan blades
DE3031390C2 (en) * 1980-08-20 1983-03-03 Voith Getriebe Kg, 7920 Heidenheim Device for limiting the power and speed of wind turbine runners against an axial flow
NL8201283A (en) * 1982-03-26 1983-10-17 Fdo Techn Adviseurs SHARABLE GONDOLA FOR A WINDMILL.
JPS58197499A (en) * 1982-05-12 1983-11-17 Hitachi Ltd Operating mechanism of turbo machine with movable vanes
US4578019A (en) * 1982-05-28 1986-03-25 The Garrett Corporation Ram air turbine
DE3426967A1 (en) * 1984-07-21 1986-01-30 Balcke-Dürr AG, 4030 Ratingen Turboengine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964102A (en) * 1927-12-17 1934-06-26 Bendix Res Corp Variable pitch and reversible aeroplane propeller
US2423400A (en) * 1941-06-06 1947-07-01 Harry J Nichols Propeller
US2738045A (en) * 1950-02-11 1956-03-13 Curtiss Wright Corp Clutch mechanism
FR2525285A1 (en) * 1982-04-20 1983-10-21 Durand Engrenages Variable pitch hydraulic turbine - has blade holder rotated by actuator sleeve with planetary gearing carrying brake

Also Published As

Publication number Publication date
US4772182A (en) 1988-09-20
JPS6312805A (en) 1988-01-20
DE3620879C1 (en) 1987-06-25
EP0250923A2 (en) 1988-01-07

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Inventor name: WITTE, GERD