GB612462A - Improved electric motor driven screw and nut mechanism - Google Patents

Improved electric motor driven screw and nut mechanism

Info

Publication number
GB612462A
GB612462A GB15755/46A GB1575546A GB612462A GB 612462 A GB612462 A GB 612462A GB 15755/46 A GB15755/46 A GB 15755/46A GB 1575546 A GB1575546 A GB 1575546A GB 612462 A GB612462 A GB 612462A
Authority
GB
United Kingdom
Prior art keywords
motor
screw
nut
gearing
screw 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.)
Expired
Application number
GB15755/46A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB612462A publication Critical patent/GB612462A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/24—Operating mechanisms electric
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D71/00—Mechanisms for bringing members to rest in a predetermined position
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/726—Ring gears; Internal gears
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/502—Application of doors, windows, wings or fittings thereof for vehicles for aircraft or spacecraft

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

612,462. Lifting-jacks. GENERAL MOTORS CORPORATION. May 24, 1946, No. 15755. Convention date, May 26, 1945. [Class 78 (iii)] In screw jacks driven by an electric motor through gearing, a locking member is provided which normally locks one of the transmission gears to prevent rotation of the screw, but is engageable with another of the transmission members to permit operation of the jack when the motor is energized. The speed reduction gearing between the motor 20, Fig. 1, and the screw shaft 70 comprises two ring gears 50 and 51, Figs. 1 and 3, and a cooperating hypocyclic gear 40, the latter being driven by the motor. One ring gear 51, attached to the screw shaft 70 by means of a torsion rod 61, is normally engaged and locked by the arm 128 of a pawl 115 which renders the gearing inoperative, but when the motor is energized an electromagnetic shifter rocks the pawl 115 so that the arm 128 disengages the ring 51, and the arm 127 engages the gear member 50 which is then locked against rotation and becomes a reaction member to effect drive. The electromagnetic shifter-comprises a solenoid 133, Figs. 1 and 2, which operates links 131 and 130 which rotate the rod 125 and pawl 115. The electrical circuit being such that the solenoid is energized at the same instant as the motor is connected in circuit. The non-rotatable nut 90, Fig. 4, has abutment lugs 84a and 85a at each end, each being adapted to engage one of the corresponding lugs 84 or 85, Figs. 1 and 4, on the screw shaft 70, so preventing its rotation when the nut is in either of its extreme positions, and as the gearing and screw are resiliently connected by the torsion rod 61, the jack is not harmed by the sudden engagement of co-operating lugs. Limit switches 111 and 110, Figs. 1 and 4, are controlled by the nut for rendering the motor and magnetic shifter inactive immediately before the nut moves one of its abutment lugs into engagement with a co-operating lug on the screw shaft.
GB15755/46A 1945-05-26 1946-05-24 Improved electric motor driven screw and nut mechanism Expired GB612462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612462XA 1945-05-26 1945-05-26

Publications (1)

Publication Number Publication Date
GB612462A true GB612462A (en) 1948-11-12

Family

ID=22034567

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15755/46A Expired GB612462A (en) 1945-05-26 1946-05-24 Improved electric motor driven screw and nut mechanism

Country Status (1)

Country Link
GB (1) GB612462A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010495A2 (en) * 1988-04-19 1989-11-02 Allied-Signal Inc. Electrically operated disc brakes
WO1998042567A1 (en) * 1997-03-25 1998-10-01 Sundstrand Corporation Aircraft spoiler blow-down mechanism
RU2522638C2 (en) * 2012-07-25 2014-07-20 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Electromechanical drive of aircraft wing interceptor
US8800402B2 (en) 2010-03-04 2014-08-12 Vingcard Elsafe As Motor mechanism
FR3089950A1 (en) * 2018-12-18 2020-06-19 Safran Landing Systems Method of protection against impacts which may affect an aircraft undercarriage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989010495A2 (en) * 1988-04-19 1989-11-02 Allied-Signal Inc. Electrically operated disc brakes
WO1989010495A3 (en) * 1988-04-19 1990-01-25 Allied Signal Inc Electrically operated disc brakes
WO1998042567A1 (en) * 1997-03-25 1998-10-01 Sundstrand Corporation Aircraft spoiler blow-down mechanism
US5918836A (en) * 1997-03-25 1999-07-06 Sundstrand Corporation Aircraft spoiler blow-down mechanism
US8800402B2 (en) 2010-03-04 2014-08-12 Vingcard Elsafe As Motor mechanism
RU2522638C2 (en) * 2012-07-25 2014-07-20 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Electromechanical drive of aircraft wing interceptor
FR3089950A1 (en) * 2018-12-18 2020-06-19 Safran Landing Systems Method of protection against impacts which may affect an aircraft undercarriage
EP3670964A1 (en) * 2018-12-18 2020-06-24 Safran Landing Systems Method for protecting against impacts that could affect an aircraft landing gear

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