EP0465516A1 - Dispositif de transfert a roues pour le deplacement d'un avion - Google Patents

Dispositif de transfert a roues pour le deplacement d'un avion

Info

Publication number
EP0465516A1
EP0465516A1 EP90905200A EP90905200A EP0465516A1 EP 0465516 A1 EP0465516 A1 EP 0465516A1 EP 90905200 A EP90905200 A EP 90905200A EP 90905200 A EP90905200 A EP 90905200A EP 0465516 A1 EP0465516 A1 EP 0465516A1
Authority
EP
European Patent Office
Prior art keywords
transfer device
wheels
transfer
driving
axle
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Withdrawn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
EP90905200A
Other languages
German (de)
English (en)
Inventor
Matti Sinkkonen
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.)
Tana-Jyra Ky
Original Assignee
Tana-Jyra Ky
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 Tana-Jyra Ky filed Critical Tana-Jyra Ky
Publication of EP0465516A1 publication Critical patent/EP0465516A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/22—Ground or aircraft-carrier-deck installations for handling aircraft

Definitions

  • the object of the invention * is a transfer device equipped with wheels for moving an aircraft or other wheeled device over a base, which transfer device includes at least one so-called self- wedging friction roller which presses onto the wheels of the device to be moved, beneath their axles, drive devices to drive the friction roller and two support wheels at essentially the same peripherical velocity in different directions, and in which transfer device these two driving support wheels are located close to the centre line of the friction roller.
  • double wheel also means two neighbouring wheels of a bogie and friction roller also means a friction track.
  • the construction of a transfer device can be essentially lightened when the driving force is transferred to the ground wheel of the aircraft from a drive wheel or friction roller belonging to the transfer device. This presupposes that the friction roller is pressed against the aircraft ground wheel which such a force that is usually a few percent of the weight coming onto the wheel.
  • This invention is especially connected to transfer devices equipped with so-called self-wedging friction rollers, which are known, for example, from the following patent publications, SE 437137, GB 845,105, SU 425527, and US 4,125,029 and from Finnish Patent Application 870710.
  • the transfer device shown in the US publication differs considerably from the two previously mentioned in that it is only applicable to pulling the device to be moved.
  • the question is one of a transfer device equipped with a pushing friction roller.
  • the aforementioned compressive force is created by the combined effect of a turning moment and the transfer device's own driving support wheels.
  • the known devices demand either good friction conditions or they must be located very low down, which causes difficulties in construction.
  • a small friction roller can always be placed quite low down, but the surface pressure on the ground wheel then easily becomes greater than that permitted.
  • the known devices are poorly adapted to moving aircraft equipped with double wheels. For example a transfer device in accordance with the GB publication does not permit the aircraft to turn when the double wheels would rotate at-different speeds.
  • the intention of this invention is to create a new transfer device equipped with a so-called self-wedging friction roller, which can operate under very much poorer friction conditions than earlier devices, in which case the transfer device can operate when the friction roller is even quite high in relation to the axle of the ground wheel of the device to be moved.
  • the principal characteristics of the invention appear in the accompanying Patent Claim 1.
  • the main principle of the device is to use the transfer device to multiply the pushing power. Under typical conditions a coefficient of 10 - 15 can be achieved. Then for example the 1 tn (10 kN) push of a small tractor acting as a pusher multiplies to 10 - 15 tn, which power is enough to move very large aircraft.
  • the intention is to create a transfer device especially intended to move devices with double wheels, which permits the device being moved to turn, when the double wheels rotate at different speeds.
  • the transfer device shown by Figures 1 and 2 is intended for moving an aircraft 1 on an airfield 2.
  • aircraft 1 is shown as only a part of the undercarriage and ground wheels 6.
  • the principal components of the transfer device are the transfer unit 9 itself and the pushing section 12 and the boom 11 that connects them.
  • the pushing section is advantageously a small tractor, when the transfer unit 9 and the boom 11 form a detachable accessory.
  • the transfer unit 9 is connected to the boom 11 by means of a vertical joint 10, which makes it possible for the aircraft 1 to turn while being pushed.
  • the springs 22 return the transfer unit 9 to a central position after possible deviation.
  • the transfer unit 9 is constructed on a frame, to which two sleeve axles 23 are attached by bearings on each side of the same line, these are combined by a common main axle 16, round which both sleeves are free to rotate. Simple journal bearings are adequate here, because the friction rollers generally rotate at the same speed.
  • Friction roller 3 is permanently attached to sleeve axle 23 and support wheel 4 is attached to it by a bearing.
  • the hydraulic motors 5 with gearboxes are attached to the frame and their axle forms the drive axle 20, on which there is the drive toothwheel 17 and drive chainwheel 19. These form part of the gearwheel drive 7, by means of which drive is transmitted to the support wheel 4, and of the chain drive, by means of which drive is transmitted to the friction roller 3.
  • the driven toothwheel 18 is attached to support wheel 4 and includes a centre hole through which sleeve axle 23 runs.
  • the driven chainwheel 23 is attached to the sleeve axle 23 itself.
  • High-pressure hydraulic oil is produced in the pump unit in the tractor. The figures do not show the hydraulic connection between the transfer unit and the tractor.
  • Figure 2 shows the connection of the transfer unit 9 to the pushing unit 12.
  • the boom 11 that transmits the push is connected in a horizontal direction by means of joint 13 to pushing unit 12, which thus permits the transfer unit to move in accordance with the form of the surface of the airfield.
  • the transfer unit 9 can be slightly raised off the ground by means of the jointed auxilliary arm 14.
  • the auxilliary arm 14 includes operating device 15, by means of which it can be retracted so that the transfer unit 9 and with it the support wheels 4 can be lifted off the base 2.
  • the pushing section and the transfer unit can naturally also be constructed as a single unit.
  • the pushing unit is then equipped with only two drive wheels and operating devices, by means of which the transfer unit can be turned in order to steer the .transfer device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Friction Gearing (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Handcart (AREA)

Abstract

Le dispositif de transfert décrit, qui est équipé de roues de support (4) sert à déplacer sur une base (2) un avion (1) ou un autre engin équipé de deux roues (6). Le dispositif de transfert comprend au moins un cylindre de friction dit à auto-blocage (3), qui saisit les roues (6) du dispositif à déplacer au-dessous de leurs essieux, ainsi que deux roues de support assurant un entraînement sensiblement à la même vitesse périphérique dans le sens opposé. Dans ledit dispositif de transfert, les deux roues de support (4) pour l'entraînement sont placées à proximité de la ligne médiane du cylindre de friction (3). Le dispositif de transfert de la présente invention comporte une section de poussée (12) pourvue de ses propres roues, de sa source motrice et de ses dispositifs d'entraînement et de direction, les cylindres de friction et les roues de support pour l'entraînement étant placés dans une unité de transfert (9), qui est reliée à la section de poussée (12) au moyen d'une flèche (11), laquelle est reliée à l'unité de transfert (9) par une articulation verticale (10) et à l'unité de poussée (11) par une articulation horizontale (13).
EP90905200A 1989-03-31 1990-03-28 Dispositif de transfert a roues pour le deplacement d'un avion Withdrawn EP0465516A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI891544A FI81534C (fi) 1989-03-31 1989-03-31 Transportanordning med stoedhjul.
FI891544 1989-03-31

Publications (1)

Publication Number Publication Date
EP0465516A1 true EP0465516A1 (fr) 1992-01-15

Family

ID=8528153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90905200A Withdrawn EP0465516A1 (fr) 1989-03-31 1990-03-28 Dispositif de transfert a roues pour le deplacement d'un avion

Country Status (4)

Country Link
EP (1) EP0465516A1 (fr)
JP (1) JPH04504237A (fr)
FI (1) FI81534C (fr)
WO (1) WO1990011933A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106628228B (zh) * 2016-08-31 2018-12-21 马宏 后推器的应用
GB201707691D0 (en) * 2017-05-12 2017-06-28 Mclaren Applied Tech Ltd Shunt device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI75535C (fi) * 1987-02-20 1988-07-11 Tana Jyrae Ky Med hjul foersedd flyttningsanordning foer flyttning av ett flygplan.
NZ225514A (en) * 1987-07-24 1990-10-26 Ian Arthur Royle Apparatus for moving vehicle or aircraft by engagement with a wheel of the vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9011933A1 *

Also Published As

Publication number Publication date
FI81534C (fi) 1990-11-12
FI81534B (fi) 1990-07-31
JPH04504237A (ja) 1992-07-30
WO1990011933A1 (fr) 1990-10-18
FI891544A0 (fi) 1989-03-31

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Legal Events

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

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17P Request for examination filed

Effective date: 19910927

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Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

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

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18D Application deemed to be withdrawn

Effective date: 19930930