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Airplane swerve over-travel detecting device

A detection device and over-travel technology, applied in measurement devices, aircraft parts, transportation and packaging, etc., can solve problems such as danger, insufficient reliability, vibration fatigue damage, etc., and achieve the effect of not easy to detect by mistake, easy to find, and easy to maintain.

Active Publication Date: 2013-05-08
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to easily destroy the target, the design strength of the connection point between the target and the mechanism is low, and it is easy to be damaged due to wind load and vibration fatigue
Moreover, although the knocked-off target is connected by a spring or a cable structure, there is still a hidden danger of falling off and flying out to cause greater danger.
This kind of detection mechanism is not reliable enough, it is easy to cause false indications, and it needs to be replaced with a new structure after damage occurs

Method used

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  • Airplane swerve over-travel detecting device
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  • Airplane swerve over-travel detecting device

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Embodiment Construction

[0038] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention.

[0039] The core idea of ​​the present invention is that through mechanism design, the detection mechanism first stores a certain potential energy in a mechanical / physical way, and when the over-travel lever / ejector moves to a certain position, it can trigger the release of the potential energy of the detection mechanism and convert it into a target Movement, changing the position of the target, so as to achieve detection.

[0040] see figure 1 , shows a schematic structural view of the aircraft turning over-travel detection device according to the present invention. The aircraft turning over-travel detection device 100 of the present invention includes an ov...

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PUM

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Abstract

The invention provides an airplane swerve over-travel detecting device. The airplane swerve over-travel detecting device comprises an over-travel push rod and a detecting assembly, wherein the detecting assembly comprises a target, a proximity detector, a sleeve, an energy storage spring, a connecting rod and a linkage clamping hook. When swerve over-travel occurs, the linkage clamping hook is opened through the over-travel push rod so as to loosen the connecting rod, the connecting rod is driven to drive the target by the energy storage spring towards the proximity detector, and the proximity detector detects the position of the target and send signals to an airplane control system. The airplane swerve over-travel detecting device is beneficial to detecting swerve over-travel and not prone to wrong detection and false-alarm. The target is not destroyed in a detecting process, and the over-travel state is locked in a mechanical mode when the over-travel state occurs. The over-travel state can be discovered by crew members easily and hand reset can be carried out.

Description

technical field [0001] The invention belongs to the technical field of self-detection of an aircraft turning system, and relates to a non-destructive detection device for an over-travel of an aircraft turning. Background technique [0002] Modern aircraft, especially large civil aircraft and transport aircraft, generally have a front wheel steering system, which converts hydraulic energy and electrical energy into rotation of the front wheels. [0003] Common turning actuation forms include rack and pinion and push-pull actuators, and the actuation principles of these forms are known. Due to structural design reasons, the steering angle of most front wheels is designed with a maximum allowable value. Continued rotation after exceeding this angle may cause disengagement or damage of the transmission mechanism. Therefore, after reaching this critical angle, it is necessary to automatically disengage the steering system. And remind the pilot or maintenance of this state throug...

Claims

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Application Information

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IPC IPC(8): G01B21/22B64C25/50
CPCB64C25/50B64C25/00
Inventor 李生杰田剑波曹丹青王鸿鑫陈诚
Owner COMAC
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