EP0272176A1 - Hydraulischer Drehflügelantrieb, insbesondere für einen Flugzeugruderantrieb - Google Patents

Hydraulischer Drehflügelantrieb, insbesondere für einen Flugzeugruderantrieb Download PDF

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Publication number
EP0272176A1
EP0272176A1 EP87402604A EP87402604A EP0272176A1 EP 0272176 A1 EP0272176 A1 EP 0272176A1 EP 87402604 A EP87402604 A EP 87402604A EP 87402604 A EP87402604 A EP 87402604A EP 0272176 A1 EP0272176 A1 EP 0272176A1
Authority
EP
European Patent Office
Prior art keywords
pallet
hub
rotation
actuator
shaft
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
EP87402604A
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English (en)
French (fr)
Other versions
EP0272176B1 (de
Inventor
Gérard Devaud
Jean-Michel Rembliere
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.)
Societe dApplications des Machines Motrices SAMM SA
Original Assignee
Societe dApplications des Machines Motrices SAMM SA
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 Societe dApplications des Machines Motrices SAMM SA filed Critical Societe dApplications des Machines Motrices SAMM SA
Publication of EP0272176A1 publication Critical patent/EP0272176A1/de
Application granted granted Critical
Publication of EP0272176B1 publication Critical patent/EP0272176B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type

Definitions

  • the present invention relates to a rotary hydraulic actuator, intended for driving in rotation an element such as an aircraft control surface.
  • this application is not limiting, this actuator being capable of being used for driving very diverse elements.
  • the actuator targeted by the invention is of the type comprising a paddle rotatably and sealingly mounted in a chamber provided in a body, and on the faces of which a hydraulic fluid pressure is applied, the paddle being mechanically integral with the element to be driven in rotation.
  • the pallet comprises at least two parts extending radially on either side of its axis of rotation, and these two parts are each movable in a chamber extending over an angular sector less than a half circumference, this chamber being divided by said part into two compartments, and the actuator is provided with a hydraulic circuit for supplying the chambers with fluid produced so as to be able to drive the pallet in rotation in one direction or the other.
  • the pallet rotates and drives the element integral with its axis in rotation.
  • This solution is advantageous for ensuring the direct rotation drive of a shaft or a pivot as soon as this rotation is less than one turn, as is the case in particular for an aircraft control surface (helicopter planes).
  • the invention provides better reliability than known systems.
  • the pallet comprises four radial parts also angularly spaced and rotatable in four respective chambers, in each of which open an inlet pipe and an outlet pipe for the hydraulic fluid.
  • the hydraulic circuit comprises supply lines arranged in the body as well as in a central hub of the pallet.
  • the hub is axially traversed by a shaft of a rotary distributor on the periphery of which grooves for the passage of hydraulic fluid are formed, and this shaft is suitable for simultaneously closing the supply lines and return of the fluid when the distributor is in equilibrium position relative to the pallet, while the rotation of this shaft by a determined angle puts the pipes of the body and the hub of the pallet into communication, which causes a correlative rotation of the pallet with servo-control of the latter's position to the new angular position of the shaft.
  • the hydraulic actuator presented in Figure 1 comprises a pallet 1 rotatably mounted around an axis X-X in a chamber 2 formed in a body 3 and on the faces of which can be applied a hydraulic fluid pressure.
  • the pallet 1 comprises two parts 4, 5 extending radially on either side of the axis of rotation XX as well as a cylindrical central hub 6, integrally formed with the two radial parts 4, 5.
  • the hub 6 is in leaktight contact with two radial projections 3a, 3b of the body 3, in which two seals 7 are received.
  • the hub 6 and the projections 3a, 3b divide the chamber 2 into two compartments 8, 9 whose cylindrical walls 8a, 9a extend over at least half a circumference and are in sealed contact with the ends of the radial parts 4 , 5 thanks to seals 11, 12 received in grooves formed at the ends of said parts 4, 5.
  • the hydraulic circuit of this actuator includes two pairs of similar pipes which supply the hydraulic compartments 8, 9: an inlet A opens on the one hand into a pipe 13 formed in the body 3 which opens into the chamber 9, and on the other hand into a bypass 14 external to the body 3 and which extends by a pipe 15 in the body 3.
  • the pipe 15 is diametrically opposite to the pipe 13 and opens into the chamber 8, on the side opposite to the pipe 13.
  • a fluid outlet B communicates on the one hand with a pipe 16 which opens into the chamber 8 on the side of the radial part 4 opposite to that where the pipe 15 opens, and on the other hand with a bypass 17 external to the body 3.
  • This branch 17 is extended by a pipe 18 in the body 3, diametrically opposite to the pipe 16 and which opens into the part of the compartment 9 opposite to that which receives the pipe 13.
  • the pallet 1 is secured by its hub 6 with the element to be driven in rotation, not shown, and which can for example be an aircraft control surface.
  • the pallet 21 comprises four radial parts 22, 23, 24, 25 also spaced angularly, as well as a central hub 26 made integrally with the parts 22-25.
  • the hub 26 is in sealed contact with the ends of four radial extensions 27, 28, 29, 31 of the body 32 thanks to four seals 33.
  • These four extensions 27-31 delimit between them four chambers 34, 35, 36, 37 with cylindrical outer walls 34a, 35a, 36a, 37a in leaktight contact with the ends of the radial parts 22-25 by means of seals 30 received in the ends of said radial parts 22-25.
  • the hydraulic supply circuit of this actuator is constituted as follows: a fluid inlet A ⁇ feeds an annular pipe 38 external to the body 32 and which communicates with four radial pipes 39, 41, 42, 43 passing through the body 32 and which open into the respective compartments 37, 36, 35, 34 facing the corresponding faces of the four radial parts 25, 24, 23, 22.
  • a fluid outlet B ⁇ communicates with a peripheral pipe 44 external to the body 32 and which feeds four radial pipes 45 , 46, 47, 48 passing through the body 32 and emerging into the com respective compartments 37, 34, 35, 36 on the side of the radial parts 25, 22, 23, 24 opposite the pipes 39, 43, 42, 41.
  • the pallet 51 is here constituted by two radial parts 52, 53, diametrically opposite and integrally formed with a cylindrical central hub 54.
  • the parts 52-53 can be angularly struggled around the axis XX of the hub 54 in chambers 55, 56 formed in a body 57.
  • the seal between the two compartments of each chamber 55, 56 is obtained by seals sealing 58 received in grooves at the ends of the radial parts 52, 53, while sealing between the hub 54 and the body 57 is obtained by seals 59 housed in diametrically opposite grooves in the body 57.
  • the hydraulic circuit here comprises, machined in the hub 54, return pipes 61 to the pressure of the reservoir R, the ends of which, diametrically opposite, open opposite two gor transverse ges 62 formed on the periphery of a central shaft 63 received in an axial bore of the hub 54.
  • four radial conduits 64, 65, 66, 67 are further provided.
  • the conduits 64, 65 open into two compartments opposite of the chamber 55, separated by the radial part 52, while the conduits 66, 67 open into the two compartments of the chamber 55 separated by the radial part 53.
  • the grooves 62 are machined in a portion 63a of cylindrical section of the tree 63. This portion 63a defines the distribution characteristics of the system.
  • conduits 64 and 65 and on the other hand the conduits 66 and 67 are formed internally at the hub 54, two supply conduits 68 for the hydraulic fluid at pressure P, supplied by a hydraulic source not shown.
  • the portion 63a of the shaft 63 discovers the supply conduits 68, which then communicate with the respective conduits 65 and 67
  • the fluid at pressure P therefore fills the compartments of the chambers 55, 56, which makes the pallet 51 rotate clockwise, while the fluid at pressure R flows from the two other compartments of the chambers 55, 56 by the conduits 64, 66, 61 to the tank at pressure R.
  • the actuator therefore functions as a device for copying the angular position of a control shaft.
  • the actuator 65 is equipped with a pallet 66 comprising two radial parts 70 diametrically opposite and joined by an annular part 69 and a hub 71 of annular section axially passing through the annular part 69
  • the latter is secured in rotation with the hub 71 by complementary axial splines such as 72.
  • any suitable means is provided, such as complementary axial splines 90, formed on the periphery of the shaft 73 and in the internal wall of the hub 71.
  • a bolt 130 provided with a thread 190 is screwed into a thread of the hub 71, coaxially with the shaft 73, and makes it possible to tighten the bearings 92, 93.
  • the actuator 65 also comprises an annular body 74 surrounding the radial parts 70 and the central part 69, and on the periphery of which are machined two circumferential grooves 75, 76 coaxial with the general axis Y-Y of the actuator.
  • the groove 75 communicates on the one hand with a supply duct 77, 78 formed in an outer casing 79 and a sleeve 80, and on the other hand with two radial ducts 81 drilled in the body 74 and opening into respective chambers 82 , 83.
  • the groove 76 communicates on the one hand with a supply duct 84, arranged in the casing 79 and which opens into a bore 130 of a second sleeve 87, and on the other hand with two ducts radials 86 of the body 74, which open into the other two hydraulic chambers 88, 89.
  • the body 74 is provided with an annular seal 74a housed in a groove in the body formed between the grooves 75, 76.
  • the chambers 82, 83 and 88, 89 are delimited by the body 74 and by the radial parts 70 as well as by the central part 69.
  • the latter as well as the radial parts 70 are mounted in leaktight manner with respect to the body 74 by seals 91, 120 received in respective grooves of the body 74 and of the ends of the radial parts 70.
  • the actuator 65 is also equipped with two ball bearing bearings 92, interposed between the hub 71 and an annular body 94 contained in the casing 79.
  • the latter is provided with two radial flanges 97, 98 interposed between the radial parts 70 and bearings 92, which are complementary tightly held in place axially by an end flange 99 of the hub 71.
  • the assembly is closed, on the side opposite to the flange 99, by a cover 101 held by fixing screws 102 engaged in the casing 94.
  • Figure 10 shows an actuator 100 identical to the actuator 65, except that its cover 101 is replaced by a flange 103 which receives the end 104 of an electric potentiometer 105 of shaft 73.
  • This potentiometer 105 is provided with a slider 106 driven in rotation in a manner known per se by the shaft 73 on the resistance of the potentiometer, when this shaft is itself rotated as described above with reference to FIGS. 6 to 9.
  • FIG. 11 and 12 show a series assembly of several coaxial actuators 107, each pallet 109 of which is provided with a male 124-female coupling 125, the male elements 124 fitting into the female elements 125.
  • Each action neur 107 is of the type of that of FIG. 1 and its pallet 109 therefore comprises, in addition to the coupling 124-125, two radial parts 111 connected by a central hub 112 and which can be angularly struggled in two chambers 113 fed by bores 114, 115, 116, 117 formed in the body 118.
  • Each actuator 107 having its own hydraulic circuit, the series assembly of several coaxial actuators 107 makes it possible, in the case of actuation of an aircraft control surface, to provide the redundancy required for safety reasons.
  • the chambers or compartments (8,9; 55, 56; 83-88, 82; 113) extend over angular sectors less than half a circumference.
  • the pallet 130 of Figures 13 to 15 is provided, on the two opposite faces of its hub 131 with two sealing rings 132 connected by sealing cords 133, 134 extending in the extensions of a diameter of the rings 132
  • the rings and the cords 133, 134 are housed in corresponding grooves 135, 136 formed in the opposite faces of the hub 131 and in the radial parts 137, 138 of the pallet 130.
  • the cords 133, 134 extend from one side and on the other side of the hub 131 in a plane containing a diameter of the rings 132. The latter and the cords 133, 134 ensure an excellent seal between the pallet 130 and the wall of the chamber of the actuator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Motor Or Generator Frames (AREA)
EP87402604A 1986-11-26 1987-11-18 Hydraulischer Drehflügelantrieb, insbesondere für einen Flugzeugruderantrieb Expired - Lifetime EP0272176B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8616507 1986-11-26
FR8616507A FR2607200B1 (fr) 1986-11-26 1986-11-26 Dispositif actionneur hydraulique rotatif a palette, destine notamment a l'entrainement d'une gouverne d'aeronef

Publications (2)

Publication Number Publication Date
EP0272176A1 true EP0272176A1 (de) 1988-06-22
EP0272176B1 EP0272176B1 (de) 1993-01-20

Family

ID=9341249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402604A Expired - Lifetime EP0272176B1 (de) 1986-11-26 1987-11-18 Hydraulischer Drehflügelantrieb, insbesondere für einen Flugzeugruderantrieb

Country Status (5)

Country Link
US (1) US4825754A (de)
EP (1) EP0272176B1 (de)
DE (1) DE3783749T2 (de)
ES (1) ES2037100T3 (de)
FR (1) FR2607200B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062477C1 (de) * 2000-12-14 2002-07-25 Zf Sachs Ag Schwenkmotor
CN107120332A (zh) * 2017-06-23 2017-09-01 武汉科技大学 一种组合式定子的摆动油缸

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* Cited by examiner, † Cited by third party
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US5394766A (en) * 1992-07-21 1995-03-07 The Walt Disney Company Robotic human torso
SE508430C2 (sv) * 1995-03-31 1998-10-05 Mecman Ab Rexroth Lagring vid vriddon
US6200096B1 (en) 1999-04-16 2001-03-13 Sikorsky Aircraft Corporation Actuation system for an active rotor control system
US6196796B1 (en) * 1999-04-22 2001-03-06 Sikorsky Aircraft Corporation High torque actuation system for an active rotor control system
FI108076B (fi) * 1999-08-17 2001-11-15 Esko Raikamo Voimaelin venttiilien tms. asettamiseksi haluttuun asentoon
AU5277901A (en) * 2000-03-23 2001-10-03 Pivotal Engineering Ltd Piston for an internal combustion engine
DE10243696B3 (de) * 2002-09-20 2004-03-11 Zf Sachs Ag Schwenkmotor
US20060162548A1 (en) * 2005-01-27 2006-07-27 2051172 Ontario Inc. Rotary hydraulic cylinder
DE102005047278A1 (de) * 2005-10-01 2007-04-05 Bayerische Motoren Werke Ag Schwenkmotor-Anordnung in einem geteilten Stabilisator eines Fahrzeugs
FI20051042A0 (fi) * 2005-10-14 2005-10-14 Esko Raikamo Paineväliainekäyttöinen kiertolaiteyksikkö ja sovitelma kiertolaiteyksikköjen käyttämiseksi
US7254997B1 (en) * 2006-10-12 2007-08-14 David Hui Anti-steal tire pressure monitoring apparatus
WO2008063154A2 (en) * 2006-10-12 2008-05-29 United Technologies Corporation Fan variable area nozzle with adaptive structure
WO2008141361A1 (en) * 2007-05-21 2008-11-27 Philip David Giles A pump for a desalination system
DE102009001414A1 (de) 2008-03-22 2009-09-24 Zf Friedrichshafen Ag Schwenkmotor
WO2010121210A2 (en) * 2009-04-16 2010-10-21 Rotary Valve Technologies, Llc Fluid-actuated controller capable of feedback regulation
US8726787B2 (en) * 2011-03-18 2014-05-20 General Electric Company Rotary hydraulic actuator with hydraulically controlled position limits
SG11201404874VA (en) * 2012-02-28 2014-10-30 Out And Out Chemistry Sprl Compressed-air device for controlling valves
US9162760B2 (en) 2012-08-02 2015-10-20 Bell Helicopter Textron Inc. Radial fluid device with multi-harmonic output
US8973864B2 (en) 2012-08-02 2015-03-10 Bell Helicopter Textron Inc. Independent blade control system with hydraulic cyclic control
US9376205B2 (en) 2012-08-02 2016-06-28 Bell Helicopter Textron Inc. Radial fluid device with variable phase and amplitude
US9061760B2 (en) * 2012-08-02 2015-06-23 Bell Helicopter Textron Inc. Independent blade control system with rotary blade actuator
US8857757B2 (en) 2012-08-02 2014-10-14 Bell Helicopter Textron Inc. Independent blade control system with hydraulic pitch link
EP2703644B1 (de) * 2012-08-27 2016-08-03 Alstom Wind, S.L.U. Winkelpositionierungssystem für eine Windturbine
ES2897701T3 (es) 2013-08-29 2022-03-02 Aventics Corp Dispositivo de accionamiento electrohidráulico
US10072773B2 (en) 2013-08-29 2018-09-11 Aventics Corporation Valve assembly and method of cooling
US11047506B2 (en) 2013-08-29 2021-06-29 Aventics Corporation Valve assembly and method of cooling
EP3161329B1 (de) * 2014-06-30 2019-09-04 Interventek Subsea Engineering Limited Drehsteller
KR101699040B1 (ko) * 2014-08-14 2017-01-23 (주)케이엔알시스템 유압 로터리 액추에이터
CN111853330A (zh) * 2020-08-05 2020-10-30 马长永 一种回转式气动执行器

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US2988057A (en) * 1958-02-06 1961-06-13 Ibm Rotating cylinder positioning mechanism
US3023741A (en) * 1960-04-29 1962-03-06 Clemco Aero Products Sealed rotary actuator
GB1069215A (en) * 1964-12-08 1967-05-17 Houdaille Industries Inc Improvements in or relating to oscillatory actuators
DE1298417B (de) * 1966-02-04 1969-06-26 Licentia Gmbh Laufringbefestigung fuer Drehfluegelnabe eines Drehfluegelantriebs
FR2203943A1 (de) * 1972-10-21 1974-05-17 Mitsubishi Metal Mining Co Ltd

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FR1566787A (de) * 1968-03-29 1969-05-09
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988057A (en) * 1958-02-06 1961-06-13 Ibm Rotating cylinder positioning mechanism
US3023741A (en) * 1960-04-29 1962-03-06 Clemco Aero Products Sealed rotary actuator
GB1069215A (en) * 1964-12-08 1967-05-17 Houdaille Industries Inc Improvements in or relating to oscillatory actuators
DE1298417B (de) * 1966-02-04 1969-06-26 Licentia Gmbh Laufringbefestigung fuer Drehfluegelnabe eines Drehfluegelantriebs
FR2203943A1 (de) * 1972-10-21 1974-05-17 Mitsubishi Metal Mining Co Ltd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10062477C1 (de) * 2000-12-14 2002-07-25 Zf Sachs Ag Schwenkmotor
CN107120332A (zh) * 2017-06-23 2017-09-01 武汉科技大学 一种组合式定子的摆动油缸

Also Published As

Publication number Publication date
DE3783749T2 (de) 1993-08-05
FR2607200B1 (fr) 1991-09-06
DE3783749D1 (de) 1993-03-04
ES2037100T3 (es) 1993-06-16
FR2607200A1 (fr) 1988-05-27
EP0272176B1 (de) 1993-01-20
US4825754A (en) 1989-05-02

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