ES2076180T3 - LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPACE APPLICATIONS. - Google Patents

LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPACE APPLICATIONS.

Info

Publication number
ES2076180T3
ES2076180T3 ES89116639T ES89116639T ES2076180T3 ES 2076180 T3 ES2076180 T3 ES 2076180T3 ES 89116639 T ES89116639 T ES 89116639T ES 89116639 T ES89116639 T ES 89116639T ES 2076180 T3 ES2076180 T3 ES 2076180T3
Authority
ES
Spain
Prior art keywords
activator
antenna
movement
satellite
particularly suitable
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.)
Expired - Lifetime
Application number
ES89116639T
Other languages
Spanish (es)
Inventor
Paolo Marsili
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.)
Alenia Spazio SpA
Original Assignee
Selenia Spazio SpA
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 Selenia Spazio SpA filed Critical Selenia Spazio SpA
Application granted granted Critical
Publication of ES2076180T3 publication Critical patent/ES2076180T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/288—Satellite antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transmission Devices (AREA)

Abstract

ACTIVADOR LINEAL DE ANTENA PARTICULARMENTE INDICADO PARA ANTENAS DE SATELITE. EL INVENTO PERTENECE A UN CAMPO ELECTROMECANICO CON APLICACION A ANTENAS ESPACIALES. EL ACTIVADOR SE ADOPTA POR UN SISTEMA DE ANTENAS PARA SATELITES PARA RECIBIR LOS R.F., Y EL MOVIMIENTO LINEAL DE UNO DE LOS PUNTOS, Y SU ROTACION EN LA ANTENA TIENE LUGAR. EL ACTIVADOR CONSISTE ESENCIALMENTE EN UN MOTOR ROTATORIO (8), UN APARATO CONECTADO AL MANGO DEL MOTOR, UN ENCHUFE ATORNILLADO (13) QUE SE EMPAREJA CON OTRO PARA OBTENER UN MOVIMIENTO LINEAL. EL MOVIMIENTO CINEMATICO SE OBTIENE POR MATERIALES DUROS EN CONTACTO CON MATERIALES BLANDOS, EN AUSENCIA DE ELEMENTOS GIRATORIOS. EN PARTICULAR, LA ENFRENTACION DE LOS ENCHUFES PRODUCE UNA CONFIGURACION GEOMETRICA ESTABLE AUNQUE HUBIERAN TEMPERATURAS EXTREMAS, Y CON ELLO SE MANTIENE UNA DISTRIBUCION UNIFORME. ENTRE ESTOS DOS APARATOS HAY UNA ANTENA REFLECTORA Y UN ENCHUFE QUE PERMITE EL DESPLAZAMIENTO LIBRE, MIENTRAS EL SISTEMA ASEGURA EL CONTACTO. EL MOVIMIENTO DE TRANSMISION RESULTANTE DEL ACTIVADOR AL REFLECTOR MIENTRAS SE SEPARA EL ULTIMO CUERPO DEL SATELITE. EL MECANISMO DE PRECARGA CONSISTE EN LAS PARTES 20, 21 Y 22, FINALMENTE RECUBREN LA CADENA CINEMATICA, QUE HACEN QUE HAYA UNA CARGA CONSTANTE Y UNA REDUCCION DE LA REACCION DEL MOTOR.LINEAR ANTENNA ACTIVATOR PARTICULARLY SUITABLE FOR SATELLITE ANTENNAS. THE INVENTION BELONGS TO AN ELECTROMECHANICAL FIELD WITH APPLICATION TO SPACE ANTENNAS. THE ACTIVATOR ADOPTS A SYSTEM OF SATELLITE ANTENNAS TO RECEIVE R.F., AND THE LINEAR MOVEMENT OF ONE OF THE POINTS, AND ITS ROTATION IN THE ANTENNA HAS A PLACE. THE ACTIVATOR CONSISTS ESSENTIALLY OF A ROTARY MOTOR (8), A DEVICE CONNECTED TO THE MOTOR HANDLE, A SCREWED PLUG (13) THAT MATCHES ANOTHER TO OBTAIN A LINEAR MOVEMENT. THE KINEMATIC MOVEMENT IS OBTAINED BY HARD MATERIALS IN CONTACT WITH SOFT MATERIALS, IN THE ABSENCE OF ROTATING ELEMENTS. IN PARTICULAR, THE FACING OF THE PLUGS PRODUCES A STABLE GEOMETRIC CONFIGURATION EVEN THOUGH THERE ARE EXTREME TEMPERATURES, AND THUS MAINTAINS A UNIFORM DISTRIBUTION. BETWEEN THESE TWO DEVICES THERE IS A REFLECTIVE ANTENNA AND A PLUG THAT ALLOWS FREE MOVING, WHILE THE SYSTEM IS SECURING THE CONTACT. THE RESULTING TRANSMISSION MOVEMENT FROM THE ACTIVATOR TO THE REFLECTOR WHILE THE LAST BODY IS SEPARATED FROM THE SATELLITE. THE PRELOAD MECHANISM CONSISTS OF PARTS 20, 21 AND 22, FINALLY COVERING THE KINEMATIC CHAIN, WHICH CAUSES A CONSTANT LOAD AND A REDUCTION OF THE MOTOR REACTION.

ES89116639T 1988-09-08 1989-09-08 LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPACE APPLICATIONS. Expired - Lifetime ES2076180T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8848330A IT1224879B (en) 1988-09-08 1988-09-08 LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPATIAL APPLICATIONS

Publications (1)

Publication Number Publication Date
ES2076180T3 true ES2076180T3 (en) 1995-11-01

Family

ID=11265938

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89116639T Expired - Lifetime ES2076180T3 (en) 1988-09-08 1989-09-08 LINEAR ACTUATOR FOR ANTENNA POINTING, PARTICULARLY SUITABLE FOR SPACE APPLICATIONS.

Country Status (4)

Country Link
EP (1) EP0371213B1 (en)
DE (1) DE68922968T2 (en)
ES (1) ES2076180T3 (en)
IT (1) IT1224879B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2039164B1 (en) * 1992-01-30 1997-01-01 Sener Ing & Sist HIGH PRECISION ADJUSTMENT MECHANISM FOR THE CORRECT POSITIONING OF DEFORMABLE STRUCTURES.
FR2712111B1 (en) * 1993-11-03 1996-01-05 Aerospatiale Device for positioning an object with respect to a fixed structure.
IT1261352B (en) * 1993-11-30 1996-05-14 Roltra Morse Spa LINEAR ACTUATOR.
DE19953934C2 (en) * 1999-11-10 2002-03-21 Astrium Gmbh Linear actuator for space applications
EP2674360A1 (en) * 2012-06-13 2013-12-18 Claverham Limited Dry lubricated linear actuator for in blade rotor control
EP2674359A1 (en) 2012-06-13 2013-12-18 Claverham Limited Dry lubricated rotary actuator for in blade rotor control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2204448A1 (en) * 1972-01-31 1973-08-09 Rohde & Schwarz DEVICE FOR BIAXIAL PIVOTING OF THE REFLECTOR OF A DIRECTIONAL ANTENNA, IN PARTICULAR OF A MOBILE SATELLITE TRACKING SYSTEM
FR2486675A1 (en) * 1980-07-09 1982-01-15 Aerospatiale METHOD AND SYSTEM FOR SERVING A MOBILE PLATFORM MOUNTED ON BOARD A SPATIAL VEHICLE
FR2502404A1 (en) * 1981-03-20 1982-09-24 Matra Articulated mounting for satellite sub-assembly - uses output from inertial detector to control step or torque motor to move support arm for stabilisation
US4550319A (en) * 1982-09-22 1985-10-29 Rca Corporation Reflector antenna mounted in thermal distortion isolation
US4652887A (en) * 1983-12-16 1987-03-24 The General Electric Company P.L.C. Antenna drive
CA1225459A (en) * 1984-09-10 1987-08-11 Ardiel Electronics Ltd. Satellite dish

Also Published As

Publication number Publication date
DE68922968D1 (en) 1995-07-13
EP0371213B1 (en) 1995-06-07
EP0371213A1 (en) 1990-06-06
IT8848330A0 (en) 1988-09-08
IT1224879B (en) 1990-10-24
DE68922968T2 (en) 1996-03-21

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