WO2016015841A1 - Dispositif d'irréversibilité comprenant des éléments de freinage à action radiale - Google Patents

Dispositif d'irréversibilité comprenant des éléments de freinage à action radiale Download PDF

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Publication number
WO2016015841A1
WO2016015841A1 PCT/EP2015/001505 EP2015001505W WO2016015841A1 WO 2016015841 A1 WO2016015841 A1 WO 2016015841A1 EP 2015001505 W EP2015001505 W EP 2015001505W WO 2016015841 A1 WO2016015841 A1 WO 2016015841A1
Authority
WO
WIPO (PCT)
Prior art keywords
backstop
brake
brake elements
cam
elements
Prior art date
Application number
PCT/EP2015/001505
Other languages
German (de)
English (en)
Inventor
Robert Hermann
Lutz Berger
Original Assignee
Liebherr-Aeropace Lindenberg Gmbh
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 Liebherr-Aeropace Lindenberg Gmbh filed Critical Liebherr-Aeropace Lindenberg Gmbh
Publication of WO2016015841A1 publication Critical patent/WO2016015841A1/fr

Links

Classifications

    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
    • F16D41/10—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • 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
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • 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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/32—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes
    • F16D51/34—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes extending in opposite directions from their pivots
    • F16D51/36—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes extending in opposite directions from their pivots mechanically actuated

Definitions

  • the present invention relates to a backstop with radially acting brake elements.
  • Generic backstops find in mechanics then use when a load ride should be interrupted to prevent unwanted movement of, for example, components of a machine.
  • High lift systems include structures arranged on the wings of larger aircraft and serve to provide increased lift even at low speeds of the aircraft, especially during take-off and landing phases.
  • the high-lift systems may comprise one or more flaps arranged in the wings, a central drive unit and transmissions which are used to transmit the information provided by the central drive unit.
  • Object of the present invention is therefore to provide an improved backstop, with minimal space requirements and low weight, with a few, cost-effective components with the least possible wear of the backstop and the associated highest possible service life.
  • a backstop with the features of claim 1, with brake housing having a first and a second cylinder jacket surface, with at least two radially spaced, arranged between the first and second cylinder jacket surface brake elements, with at least one arranged between the brake elements activation component with at least one drive cam and at least one output cam, which act in a normal operation of the backstop in the circumferential direction on one or both of the brake elements directly or indirectly, wherein one of Components drive cams or output cam in the normal mode with both brake elements is directly or indirectly engaged, and wherein the component is in an operation with locked return only with one or none of the brake elements directly or indirectly engaged.
  • backstop as light as possible and purely mechanically executed backstop can be provided without electrical or electronic components for monitoring the function. As a result, for example, the weight and the error rate of the backstop can be reduced.
  • the output cam in normal operation of the backstop and in operation with locked return only with at least one radially inner brake element or only with at least one radially outer brake element in the circumferential direction is engaged.
  • the intervention can be done indirectly via one or more additional components or directly.
  • two, three, four, five or more radially inner brake elements and corresponding thereto radially outboard brake elements accordingly applies that two, three, four five or more arranged in the circumferential direction between the brake elements output cam either only one or two of the each adjacent radially inner brake elements or the respective adjacent radially outer brake elements are engaged.
  • At least one transmission element, and / or at least one damping element, and / or at least one excitation element are provided between the activation component and at least one brake element.
  • the activation component By means of the activation component, it is possible to move the two brake elements relative to each other in the circumferential direction and in the radial direction and thus build up a braking effect.
  • the brake elements press against the respective cylinder jacket surfaces of the brake housing and prevent further relative movement between the drive and abrasion.
  • the brake elements, and / or the at least one transmission element, and / or the at least one excitation element are shaped for receiving the activation component or the activation components.
  • the said components may be so substantially concave and arranged relative to one another that the activation component can be stored therebetween.
  • the transmission element is elastically coupled to at least one brake element via at least one main spring and / or at least one secondary spring. Due to the elastic coupling of the transmission element, it is possible to position an example between transmission element and a brake element or in an essentially mounted between two brake elements activation member non-positively or under tension or without play.
  • the drive cam is coupled to the planet carrier of a drive planetary gear.
  • the output cam is coupled to an output gear.
  • the driven gear is designed as a test gear for functional testing of the backstop.
  • the present invention is further directed to an aircraft having at least one backstop according to any one of claims 1 to 9, wherein the backstop prevents the unwanted movement of a component to be driven in at least two directions when interrupting a load path.
  • FIGS. 1a and 1b are sectional views of the backstop according to the invention.
  • FIG. 2 Placement of the backstop according to the invention in one
  • Figure 3 Perspective view of the backstop invention.
  • FIG. 1a shows by the reference numeral 1 a driving planetary gear or drive planetary gear, the reference numeral 2 indicating the driving planet carrier 2 of the planetary gear 1.
  • the aborting gear or the output or the output gear 13 is designated, wherein the gear of the output 13 can be used equally as a test gear for functional testing of the backstop.
  • the input planetary gear or the drive planetary gear 1 drives via the planet carrier 2 from.
  • the planet carrier 2 is provided with drive cams 2 ', which drive the brake elements 7 and 12 together. It can be seen in FIG. 1 b that the drive cam 2 'extends in the radial direction so far that it engages in the circumferential direction both with the outer brake element 7 and with the transmission element 10 and thus indirectly with the inner brake element 12 can be brought.
  • the drive is effected by engagement of the driving planet carrier 2 via its drive cam 2 '.
  • the outer brake elements 7 and the inner brake elements 12 are arranged radially spaced from one another in five groups arranged in the circumferential direction, each having an inner brake element 12 and an outer brake element 7 in the brake housing 6. Between the outer brake elements 7 may be disposed within the brake housing 6 extending a drive disk, not shown.
  • the activation component 8 can be braced by a resilient excitation element 9 in the brake housing 6. Furthermore, a damping element 11 may be provided which provides the damping between transmission element 10 and output cam 13 '. $
  • the transmission element 10 may have a concave surface, or have an area with two mutually inclined surfaces. A similar, mirror-inverted region may be provided on a brake element opposite the transmission element.
  • the brake housing 6 may comprise an inner cylinder jacket surface 61 and an outer cylinder jacket surface 62, which may be arranged substantially concentrically with one another.
  • the brake housing 6 can be fixed in the axial and radial directions by the locking elements 4 distributed uniformly around the circumference. As a result, the resulting torque in the housing 3 is derived and then derived in the interface structure.
  • the brake elements 7 and 12 are pre-braced by the excitation elements 9 evenly inward and outward.
  • the brake elements 7 and 12 are centered relative to one another and are therefore inactive. That is, no braking work is done.
  • the activation components 8 are held centrally by the excitation elements 9 in normal operation in the brake elements 7.
  • the respective radially spaced apart braking elements 7 and 12 can at least partially have a substantially common axis of symmetry.
  • the respective radially spaced-apart Brems institute 7 and 12 are spaced from each other with operational minimum distance.
  • the excitation elements 9 may be, for example, a main spring 14 and one or more secondary springs (s) 15.
  • the main spring can be connected in series with the or the secondary spring (s) 15, so that a more complex spring behavior of the excitation element 9 can be realized, as would be possible with only one spring.
  • the transmission is released from the drive train by an internal overload clutch or by a shearing element or the like. If there is no locking of the gearbox, the gearbox can be driven uncontrolled by the air load.
  • the backstop invention prevents this.
  • the output gear 13 or the gear 13 drives back, or possibly also when passing through a load zero crossing. Due to the design of the output gear 13, however, only the inner brake elements 12 are now back or possibly propelled against the prevailing Vorbremsrial.
  • Figure 2 shows a possible placement of the backstop invention in a transmission of an aircraft.
  • the backstop or the no-back system according to the invention can be used, for example, in high-lift systems of aircraft. It may preferably be arranged in mechanical actuators of high-lift systems or at other locations of high-lift systems. A preferred application may be the use in the context or as part of a slat actuator.
  • FIG. 3 shows a perspective sectional view of a backstop according to the invention, the components of which are named again for better illustration.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne un dispositif d'irréversibilité pourvu d'une première et d'une seconde surface cylindrique (61, 62), d'au moins deux éléments de freinage à action radiale (7, 12), d'au moins un composant d'activation (8) placé entre les éléments de freinage, d'au moins une came d'entraînement (2') et d'au moins une came de sortie (13'), qui agissent directement ou indirectement dans le sens périphérique sur l'un des éléments de freinage ou sur les deux dans un mode de fonctionnement normal du dispositif d'irréversibilité, l'un des composants parmi la came d'entraînement (2') et la came de sortie (13') étant directement ou indirectement en contact avec les deux éléments de freinage (7, 12) dans le mode de fonctionnement normal, et ce composant étant directement ou indirectement en contact avec l'un des éléments de freinage (7, 12) ou avec aucun des deux dans un mode de fonctionnement où le dispositif d'irréversibilité est activé.
PCT/EP2015/001505 2014-07-30 2015-07-21 Dispositif d'irréversibilité comprenant des éléments de freinage à action radiale WO2016015841A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014011336.1 2014-07-30
DE102014011336.1A DE102014011336A1 (de) 2014-07-30 2014-07-30 Rücklaufsperre mit radial wirkenden Bremselementen

Publications (1)

Publication Number Publication Date
WO2016015841A1 true WO2016015841A1 (fr) 2016-02-04

Family

ID=53776550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/001505 WO2016015841A1 (fr) 2014-07-30 2015-07-21 Dispositif d'irréversibilité comprenant des éléments de freinage à action radiale

Country Status (2)

Country Link
DE (1) DE102014011336A1 (fr)
WO (1) WO2016015841A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11066514B2 (en) 2018-01-25 2021-07-20 The Procter & Gamble Company Soil release polymer composition comprising an anionic modified polyester

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6003991B2 (ja) * 2012-08-27 2016-10-05 株式会社島津製作所 非可逆機構
JP7095402B2 (ja) * 2018-05-22 2022-07-05 日本精工株式会社 逆入力ブレーキ機構および電動式ブレーキ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020820A1 (de) * 2012-10-23 2014-04-24 Liebherr-Aerospace Lindenberg Gmbh Differenzgeschwindigkeitsabhängige Bremse
DE102013000544A1 (de) * 2013-01-15 2014-07-17 Liebherr-Aerospace Lindenberg Gmbh Rücklaufsperre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666307B1 (en) * 2002-08-05 2003-12-23 Honeywell International, Inc. Thrust reverser system with a pass-through torque activated brake
JP2006347412A (ja) * 2005-06-17 2006-12-28 Shimano Inc ローラブレーキ取付アダプタ
JP6003991B2 (ja) * 2012-08-27 2016-10-05 株式会社島津製作所 非可逆機構

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020820A1 (de) * 2012-10-23 2014-04-24 Liebherr-Aerospace Lindenberg Gmbh Differenzgeschwindigkeitsabhängige Bremse
DE102013000544A1 (de) * 2013-01-15 2014-07-17 Liebherr-Aerospace Lindenberg Gmbh Rücklaufsperre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11066514B2 (en) 2018-01-25 2021-07-20 The Procter & Gamble Company Soil release polymer composition comprising an anionic modified polyester

Also Published As

Publication number Publication date
DE102014011336A1 (de) 2016-02-04

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