Unlock instant, AI-driven research and patent intelligence for your innovation.

Coupling device of a motorized wheel of aircraft landing gear

A technology of aircraft and landing gear, applied in landing gear, wheels, aircraft parts, etc., can solve problems such as inability to transmit torque, achieve good torque transmission, optimize weight, and optimize length

Active Publication Date: 2015-02-11
AIRBUS OPERATIONS (SAS)
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, this arrangement does not transmit torque optimally between the drive crown gear and the wheels

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coupling device of a motorized wheel of aircraft landing gear
  • Coupling device of a motorized wheel of aircraft landing gear
  • Coupling device of a motorized wheel of aircraft landing gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Referring to the drawings, a strut 1 of an aircraft (not shown) landing gear (not shown in detail) carries at its end an axle 2 on which is mounted a rim 3, the tire of which is not shown.

[0030] A wheel motor assembly including an electric motor 4 and a speed reducer device 5 is installed on the wheel shaft 2 . As a variant, the electric motor 4 can be a hydraulic motor.

[0031] The speed reducer device 5 will not be described in detail. It may be of the usual type known to those skilled in the art. It can also be of the type with an oscillating member as described in patent application EP-2 527 249 . The speed reducer device 5 has an output gear 6 which can be driven to rotate about the axle 2 when the electric motor 4 rotates.

[0032] The output gear 6 is coupled to the rim 3 via a coupling device 7 .

[0033] The coupling device 7 is a preferably metallic part, which has a star shape in plan. This metal part comprises a central part or hub 8 and a number of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An elastic device for coupling between an aircraft landing gear wheel and a coaxial motorization member for motorization of the wheel. The elastic device comprises a plurality of arms to be rotationally coupled to the motorization member adjacent a first radially inner end and which are to be linked to the wheel adjacent their radially outer opposite end, the arms being substantially rigid in a plane perpendicular to the rotational axis of the wheel and flexible in directions substantially transverse to the plane.

Description

technical field [0001] The invention relates to an elastic coupling device between a wheel of an aircraft landing gear and a coaxial motor mechanism of said wheel, as well as a motor device equipped with a wheel and an undercarriage of such a coupling device. Background technique [0002] For the reasons of saving fuel, reducing noise, limiting the duration of operation and thus the wear of aircraft engines (turbojet, turboprop...) etc., it has been proposed to motorize the wheels from their undercarriage , to enable them to move autonomously on the airport platform. [0003] It is known to ensure such motorization of the undercarriage wheels by means of a motor, the motor being for example an electric motor, a reduction device, and a rotational coupling between the output of the reduction device and the wheel rim. [0004] Moreover, when the aircraft is taxiing on the ground, since the weight of the aircraft is transmitted to the axle through the landing gear struts, the a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B64C25/36
CPCB64C25/405Y02T50/80
Inventor L·蒂扎克C·勒萨热
Owner AIRBUS OPERATIONS (SAS)