EP2390468A2 - Dispositif de réglage et turbomachine équipée du tel dispositif de réglage - Google Patents

Dispositif de réglage et turbomachine équipée du tel dispositif de réglage Download PDF

Info

Publication number
EP2390468A2
EP2390468A2 EP20110166331 EP11166331A EP2390468A2 EP 2390468 A2 EP2390468 A2 EP 2390468A2 EP 20110166331 EP20110166331 EP 20110166331 EP 11166331 A EP11166331 A EP 11166331A EP 2390468 A2 EP2390468 A2 EP 2390468A2
Authority
EP
European Patent Office
Prior art keywords
adjusting
adjusting device
threaded spindle
axially
blades
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Withdrawn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
EP20110166331
Other languages
German (de)
English (en)
Inventor
Thomas Fucks
Jean Pierre Grattier
Laurent Benoit
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP2390468A2 publication Critical patent/EP2390468A2/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings
    • F04D29/323—Blade mountings adjustable
    • 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

Definitions

  • the invention relates to an adjusting device for blades of a rotor having a gear for adjusting the blades, which is to be actuated by a co-rotating, axially adjustable control shaft, comprising a mounted on the one hand to the control shaft roller bearing, on the other hand connected to a control body, the is axially displaceable and rotatably mounted in a support body.
  • the DE 36 19 406 A1 describes an adjusting device for adjustable running blades, in particular a turbine or a propeller pump, with a machine shaft and via which by means of a hydraulic actuator piston in a hub rotatably arranged blades are adjustable, which rotatable with the machine shaft and axially movable to this Adjusting shaft is rotatably supported by means of a bearing with respect to the actuating piston and wherein the adjusting piston receiving actuating cylinder is arranged stationary on the machine housing.
  • the object of the invention is to provide an adjusting device in which the actuation of the control shaft is improved.
  • an adjusting device for blades of a rotor having a gear for adjusting the blades which is to be actuated by a co-rotating, axially adjustable control shaft, comprising a one hand on the control shaft to be mounted bearings, on the other hand with a control body is connected, which is mounted axially displaceably and rotatably in a support body, in which adjusting the adjusting body is mounted axially displaceably in the support body by means of a screw drive.
  • the screw drive according to the invention can operate at least substantially dry, i. no fluids are needed to operate the stem.
  • the screw can be made very narrow in diameter, so that it has only a small footprint and can also be used in tight hollow shafts. Although the screw according to the invention can thus build small, and relatively high actuating forces can be transmitted.
  • the adjusting body may have an internal thread, in which a threaded spindle is guided, which is rotatably fixed axially to a bearing point of the support body and which has a drive portion to which a rotary drive can be connected.
  • the rotary drive can drive the threaded spindle. by the rotational movement of the threaded spindle of the actuating body is moved axially.
  • the actuating body may comprise a nut in which the internal thread is formed.
  • the threaded spindle and the actuating shaft can be aligned along the same axis of rotation. As a result, the axial actuating forces can be transmitted stress-free from the adjusting body or the threaded spindle on the actuating shaft.
  • the threaded spindle can be rotatably mounted on an end face of a hollow circular cylindrical support body and fixed axially.
  • the threaded spindle is axial fixed in the support body ie the axial positions of the threaded spindle and the support body are rigid.
  • the threaded spindle is only rotatably mounted on the support body.
  • the threaded spindle can be mounted for example by means of a rolling bearing, in particular a double-row tapered roller bearing, a spherical roller bearing or two angular contact ball bearings, in particular in O arrangement, at the bearing point of the support body.
  • a rolling bearing in particular a double-row tapered roller bearing, a spherical roller bearing or two angular contact ball bearings, in particular in O arrangement, at the bearing point of the support body.
  • the threaded spindle can have a free end which protrudes into a receiving space of the supporting body.
  • the actuating shaft may have an end-side recess, in particular an axial bore for dipping a free end of the threaded spindle. This can be achieved in terms of the axial extent of the adjustment compact design.
  • the adjusting body may have a radial projection which engages in an axial groove of the supporting body.
  • a radial projection By engaging the radial projection in the axial groove of the support body an anti-rotation is created, which prevents the actuator body rotates due to rotation of the threaded spindle.
  • a single projection and a plurality of projections may be provided, which engages either in a common axial groove and each in its own of a plurality of axial grooves.
  • the axial grooves may be arranged distributed, for example, at equal intervals from each other over the inner circumference of the support body.
  • the projections may extend, for example, at equal distances from each other over the outer circumference of the actuating body radially outward into the axial grooves zug culinaryigen.
  • Actuator and support body may be formed in particular in the form of a splined shaft profile.
  • the adjusting body may have a receptacle for a threaded spindle nut, which forms the internal thread of the actuating body.
  • the internal thread can for example be cut directly into the actuating body.
  • the internal thread may be provided on a threaded spindle nut.
  • the threaded spindle nut may, for example, be positively or frictionally connected to the actuating body. In particular, the threaded spindle nut can be pressed into the adjusting body.
  • the adjusting device according to the invention can be used for example in a printing press in the inking unit or dampening unit.
  • the invention also relates to a turbomachine, in particular pump, compressor, turbine or turbine generator, with a rotor and blades, and a transmission for adjusting the blades, which is to be actuated by a co-rotating, axially adjustable control shaft, comprising an adjusting device according to the invention, as described.
  • the invention thus provides a solution for the linear adjustment of a rotating shaft, in particular for adjusting a setting of turbine blades.
  • the adjusting device according to the invention can contribute, since no hydraulic systems are required, but a mechanical device is needed, which does not require fluids or hydraulic fluids, such as oils.
  • the adjusting device according to the invention can be referred to as a dry system, which can be arranged in particular within a water area where leaks could lead to contamination.
  • the adjusting device according to the invention can be characterized by good controllability. It can also be operated very economically, since energy is required for adjustment only during an adjustment movement.
  • the adjusting device according to the invention can be used for example in wind turbines, gas turbines, steam turbines or industrial fans.
  • the Indian Fig. 1 Turbine rotor 1 shown as turbomachine, for example, has two blades 3. However, other numbers of blades 3 may be provided in other variants.
  • Each blade 3 is mounted by means of a pivot axis 5 pivotally mounted on a rotor shaft 7. With each pivot axis 5 and with each blade 3, a leg 9 is connected. Both legs 9 are connected via a respective coupling rod 11 with a common fork 13. The two legs 9, the two coupling rods 11 and the common fork 13 form a gear 15 by the position of the blades 3 can be changed or adjusted.
  • the transmission 15 is actuated by a control shaft 17.
  • the gear 15 rotates together with the blades 3, the rotor shaft 7 and the control shaft 17.
  • the control shaft 17 In order to change or adjust the position of the blades 3, the control shaft 17 must be axially adjustable despite its rotating motion.
  • An axial adjustment of the control shaft 17 is intended to take place from a stationary, ie not co-rotating, reference point 29.
  • an inner ring 19 of a rolling bearing 21 is seated on the adjusting shaft 17 at a end opposite the gear 15.
  • An outer ring 23 of the rolling bearing 21 is connected to a setting body 25.
  • the actuating body 25 a Pot 25a and a rod 25b on. Due to a rotational decoupling by the rolling bearing 21, the rotary actuating shaft 17 can be moved axially by the non-rotating actuator body 25 ie the actuator body 25 is rotatably mounted in a support body 27.
  • the actuator body 25 is thus axially displaceable and rotatably mounted relative to the support body 27 ,
  • the support body 27 is fixed to a stationary reference point 29.
  • a torque is introduced into the adjusting device according to the invention.
  • the actuating body 25 has an internal thread 33, in which a threaded spindle 35 is guided.
  • the adjusting body 25 has in one embodiment a receptacle for a threaded spindle nut 36 which forms the internal thread 33 of the actuating body 25.
  • the threaded spindle 35 is axially fixed at a bearing point 37 of the support body 27 but rotatably mounted.
  • the threaded spindle 35 has a drive section 39, to which the rotary drive 31 can be connected.
  • the threaded spindle 35 and the adjusting shaft 17 are aligned in the illustrated embodiment along the same axis of rotation D.
  • the threaded spindle 35 is rotatably mounted on an end face 41 of the support body 27 and fixed axially.
  • the support body 27 is designed in the embodiment hollow circular cylindrical.
  • the threaded spindle 35 has a free end 43 which projects into a receiving space 45 of the support body 25.
  • the adjusting shaft 17 has an end-side recess 47, in particular an axial bore, for dipping the free end 43 of the threaded spindle 35.
  • the actuating body 25 has a radial projection 49, for example in the form of a feather key, which engages in an axial groove 51 of the support body 27.
  • a radial projection 49 for example in the form of a feather key, which engages in an axial groove 51 of the support body 27.
  • the support body 27 may also be rectangular, square or triangular, resulting in an anti-rotation of the mold.
  • the free end 43 could also be rotatably mounted within the recess 47 of the control shaft 17 by means of a roller bearing, so that no vibrations can form.
  • the rolling bearing would then be designed axially displaceable with respect to the actuating shaft 17, so that the relative axial movement of the adjusting shaft 17 and threaded spindle 35 is compensated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20110166331 2010-05-29 2011-05-17 Dispositif de réglage et turbomachine équipée du tel dispositif de réglage Withdrawn EP2390468A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010021988 DE102010021988A1 (de) 2010-05-29 2010-05-29 Verstelleinrichtung und Strömungsmaschine mit einer solchen Verstelleinrichtung

Publications (1)

Publication Number Publication Date
EP2390468A2 true EP2390468A2 (fr) 2011-11-30

Family

ID=44063621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110166331 Withdrawn EP2390468A2 (fr) 2010-05-29 2011-05-17 Dispositif de réglage et turbomachine équipée du tel dispositif de réglage

Country Status (4)

Country Link
US (1) US8936438B2 (fr)
EP (1) EP2390468A2 (fr)
CA (1) CA2740475A1 (fr)
DE (1) DE102010021988A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012025127A1 (de) * 2012-12-21 2014-06-26 Voith Patent Gmbh Wasserkraftwerk zur Ausnutzung der Energie geführter oder freier Wasserströme

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9284962B2 (en) * 2012-08-24 2016-03-15 Zee.Aero Inc. Variable geometry lift fan mechanism
US9540103B2 (en) 2014-06-24 2017-01-10 Kitty Hawk Corporation Passive deployment mechanism for lift fan
WO2016090057A1 (fr) * 2014-12-02 2016-06-09 Reshydro Llc Appareil d'aile équilibrée modulaire et procédé
CN105090066B (zh) * 2015-09-25 2018-02-23 钟世杰 一种轴流式压缩机
CN107452039B (zh) * 2016-06-01 2023-03-31 上海东方传媒技术有限公司 压缩rgb颜色空间的方法及装置
US20190383151A1 (en) * 2016-12-21 2019-12-19 Jordan McBain Controllable-pitch centrifugal fan
US11053002B2 (en) * 2017-02-04 2021-07-06 Cool Mechatronics Gear-driven axial modulating mechanism for rotating shafts realizing a controllable pitch propeller/fan
US11718387B2 (en) * 2020-03-17 2023-08-08 Nsk Ltd. Propellant force generator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619406A1 (de) 1986-06-09 1987-12-10 Balcke Duerr Ag Verstelleinrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE33822C (de) W. SCHRANZ in Laurenburg a. d. Lahn Neuerung an zweikammerigen Apparaten zum Heben von Wasser mittelst Druckluft
US4183715A (en) * 1978-02-01 1980-01-15 First National Bank Of Lubbock Adjustable vane windmills
KR20110063475A (ko) * 2008-08-22 2011-06-10 내츄럴 파워 컨셉 인코포레이티드 폴딩 블레이드 터빈

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619406A1 (de) 1986-06-09 1987-12-10 Balcke Duerr Ag Verstelleinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012025127A1 (de) * 2012-12-21 2014-06-26 Voith Patent Gmbh Wasserkraftwerk zur Ausnutzung der Energie geführter oder freier Wasserströme

Also Published As

Publication number Publication date
US8936438B2 (en) 2015-01-20
DE102010021988A1 (de) 2011-12-01
CA2740475A1 (fr) 2011-11-29
US20110293426A1 (en) 2011-12-01

Similar Documents

Publication Publication Date Title
EP2390468A2 (fr) Dispositif de réglage et turbomachine équipée du tel dispositif de réglage
DE102011108728B4 (de) Ventiltrieb für Brennkraftmaschinen zur Betätigung von Gaswechselventilen
DE3705026A1 (de) Propellermodul fuer ein gasturbinentriebwerk
CH665257A5 (de) Vorrichtung zum veraendern des leitschaufelwinkels an einer axialen stroemungsmaschine.
DE2340012C3 (de) Vorrichtung zur wahlweisen Blatteinstellwinkelverstellung bei Verstellpropellern
DE2401470A1 (de) Blattsteigungsverstellvorrichtung
EP1635041B1 (fr) Callage de superchargeur
EP1051327B1 (fr) Embrayage
EP2662278B1 (fr) Dispositif de pivotement pour une nacelle à hélice de bateau
EP3077135B1 (fr) Machine-outil pouvant être entraînée en oscillation
EP2923074B1 (fr) Rotor d'une turbine de kaplan
DE102008064456A1 (de) Servolenkungsvorrichtung und deren Herstellungsverfahren
DE102012220920B3 (de) Unterseeboot
DE10120490B4 (de) Lageranordnung
DE1506820B2 (fr)
DE617052C (de) Vorrichtung, um zwei zentrisch gelagerte, mit gleicher Drehzahl und im gleichen Drehsinn umlaufende Wellen gegeneinander zu verstellen
DE2409721A1 (de) Hydrodynamische abhebung von drehschneiden und werkzeugen an drehspindeln zwecks von drehflaeche freies zurueckfahren bei umlaufender drehspindel
DE102013210793B4 (de) Unterseeboot
DE3301621C2 (de) Verstellpropeller für Schiffantrieb
DE290349C (fr)
DE102009002170A1 (de) Antriebsanordnung
EP0428574B1 (fr) Moteur hydraulique a piston axial
EP1467095A2 (fr) Parlier pour une eolienne
DE1402995C3 (de) Elektrospanner zur Betätigung des Spannantriebes von Spannfuttern
DE102006012361A1 (de) Strömungsmaschine

Legal Events

Date Code Title Description
AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20171201