CN204846393U

CN204846393U - Setter of aircraft angle of attack

Info

Publication number: CN204846393U
Application number: CN201520508099.6U
Authority: CN
Inventors: 郭胜利; 刘国红; 崔健
Original assignee: AVIC Aircraft Corp Xian Aircraft Branch
Current assignee: AVIC Aircraft Corp Xian Aircraft Branch
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2015-12-09
Anticipated expiration: 2025-07-14

Abstract

The utility model provides a setter of aircraft angle of attack, contains base, calibrated scale and weathercock pointer, its characterized in that, the base be an annular base, inner ring at the base is equipped with the annular step that supports the calibrated scale, also has a split ring that corresponds with angle of attack weathercock at the center of base, this split ring is connected with the inner ring wing of base, the outer loop of base passes through adjusting bolt and is connected with sucking disc formula stabilizer blade, the calibrated scale is the annular disk that there is circular space at a center, the surface of calibrated scale is equipped with the scale mark of the aircraft angle of attack, the calibrated scale is arranged in on the endocyclic annular step of base, the tail end of weathercock pointer has a connecting hole that cup joints with angle of attack weathercock.

Description

A kind of setter of aircraft angle of attack

Technical field

The application relates to aircraft manufacturing technology, the setter of aircraft angle of attack in the detection debugging of specifically aircraft stall warning system.

Background technology

The stall-warning system of aircraft sends alarm and control information close to during stall to aviator and flight control system at aircraft, its objective is to provide an abundant scope between stall warning and true stall, and make aviator or the timely operating aircraft of flight control system, aircraft is made to return to normal condition rapidly, aircraft is not caused to enter stall condition, thus ensure the airborne visual plant of flight safety, in the correct operating aircraft of aviator, ensure that flight safety has great significance.Because the systematic error etc. of aircraft stall alarm system alarm point and alarm function and aircraft real-time angle of attack output valve and measuring system is in close relations, and each airplane is all not quite similar due to the installation error of angle of attack sensor etc. and the measured error of measuring system, so, in order to ensure the conformability of the normal and alarm point of aircraft stall alarm system alarm function, compensate the impact of these errors on stall warning ALM point and alarm function, stall warning ALM function and alarm point all when every airplane dispatches from the factory must be checked it by given real-time angle of attack value and adjust, ensure that its function and performance meet the demands.In addition because stall warning system is to Flight Safety important, in order to perfectly safe, generally need verify through airflight when the stall warning system that ground is adjusted is dispatched from the factory, and again it is carried out to the further accurate adjustment on ground according to the situation of flight validation, until ground and all meeting the demands in the air.So the precision of ground debugging and science, the height of direct decision flight validation qualification rate, therefore, improves accuracy and the science of ground debugging, to minimizing airflight checking number of times, improve Aircraft Production efficiency, with reduction productive costs, also there is great economic value.

When every airplane dispatches from the factory, different aircraft angle of attack states must be provided in real time, to carry out the adjustment inspection of stall warning system by the weathercock of having installed.And the device of traditional fixed real-time angle of attack is because of by aircraft configuration, angle of attack sensor installation form, affect to locking equipment reading mode, to factors such as locking equipment accuracy of readings, make the commonality of setter and degree of utilization extremely low, also cannot ensure that stall warning system is convenient, complete adjustment and inspection work accurately, improve the qualification rate of disposable flight validation, thus affect the manufacturing schedule of aircraft.

Summary of the invention

The object of the application is the various weak points existed to locking equipment for current stall, carries out innovative design, works out a kind of novel angle of attack setter and the given method of the angle of attack.

A kind of setter of aircraft angle of attack, this device contains pedestal, calibrated disc and weathercock pointer, described pedestal is an annular pedestal, the ring-shaped step supporting calibrated disc is equipped with in pedestal, also have at the center of pedestal one with the slotted collar of angle of attack weathercock seat clamping, this snap ring is connected with the inner ring wing of pedestal, the outer shroud of pedestal is connected with sucked type leg by adjusting bolt, the surface of circular base is also provided with the briquetting of calibrated disc, calibrated disc is an annular disk, the surface of calibrated disc is provided with the scale mark of aircraft angle of attack, concentric with pedestal on the ring-shaped step that calibrated disc is placed in pedestal inner ring, the tail end of weathercock pointer has a connecting bore be socketed with angle of attack weathercock,

During use, the slotted collar of base central be connected on the axle sleeve of angle of attack weathercock axle, angle of attack weathercock is stretched out by the gap of pedestal and calibrated disc, the sucked type leg of pedestal is adsorbed on the airframe surface around angle of attack weathercock; Adjusting bolt between adjusting base and sucked type leg, makes pedestal be in relative horizontality; Weathercock pointer is socketed on angle of attack weathercock, makes the front end of weathercock pointer point on 0 scale mark of calibrated disc; The aircraft angle of attack direction that manual weathercock makes weathercock pointed need, realizes the real-time given function of aircraft angle of attack.

The beneficial effect of the application is: the axle sleeve clamping 1) using slotted collar and angle of attack weathercock axle, be connected with aircraft surfaces with sucked type leg, weathercock pointer is socketed on angle of attack weathercock, and this structure makes this angle of attack setter be adapted to the aircraft of various model, and commonality is good; 2) link with weathercock pointer and weathercock, the aircraft angle of attack data simulated with weathercock calibrated disc real-time response weathercock pointer, make measurement more accurate.3) angle of attack setter installation form adopts non-rigid connection with airframe and angle of attack weathercock, does not change the mounted equipment of aircraft and annex, guarantees integraty and the traceability of aircraft installation quality.4) angle of attack setter is escorted by adjusting bolt and sucked type presser feet and airframe surface, overcomes the impact of different airframe radian, makes equipment both meet rigid requirements, meet flexibility requirements again.

Angle of attack setter science is simple, practicality highly versatile, and the technique can carrying out aircraft angle of attack is whenever and wherever possible measured, and meets the application demand in aircraft manufacturing, operation and maintenance.

Below in conjunction with real-time routine accompanying drawing, the application is described in further detail:

Accompanying drawing explanation

Fig. 1 is the signal of aircraft angle of attack setter

Fig. 2 is that weathercock pointer installs signal

Number description: 1 pedestal, 2 calibrated discs, 3 sucked type legs, 4 adjusting bolts, 5 briquettings, 6 weathercock pointers, 7 airframes, 8 angle of attack weathercocks

Detailed description of the invention

See accompanying drawing, the setter of the aircraft angle of attack of the application, based on installing and the angle of attack weathercock 8 on airframe 7.The setter of aircraft angle of attack, containing pedestal 1, calibrated disc 2 and weathercock pointer 6, described pedestal 1 is a loop configuration, the ring-shaped step supporting calibrated disc 2 is equipped with in pedestal 1, the slotted ring that one corresponding with angle of attack weathercock 8 is also had at the center of pedestal 1, during use, the center of turn of angle of attack weathercock 8 and the center superposition of this slotted ring, this slotted ring is connected with the inner ring wing of pedestal 1, the outer shroud of pedestal is connected with sucked type leg 3 by adjusting bolt 4, the surface of circular base is also provided with the briquetting 5 of calibrated disc, calibrated disc 2 is annular disks, the surface of calibrated disc is provided with the scale mark of aircraft angle of attack, concentric with pedestal on the ring-shaped step that calibrated disc 2 is placed in pedestal 1 inner ring, the tail end of weathercock pointer 6 has a connecting bore be socketed with angle of attack weathercock 8, as shown in Figure 2.Be placed in by the slotted ring at pedestal 1 center on the peripheral fuselage skin of angle of attack weathercock 8 rotating shaft during use, angle of attack weathercock 8 is stretched out by the gap of pedestal 1 and calibrated disc 2, the sucked type leg 3 of pedestal 1 is adsorbed on the surface of the airframe 7 around angle of attack weathercock 8; By the adjusting bolt 4 between adjusting base 1 and sucked type leg 3, pedestal 1 is made to be in relative horizontality; Be socketed on angle of attack weathercock by weathercock pointer 6, the front end of weathercock pointer 6 is pointed on 0 scale mark of calibrated disc, and dial surface is provided with large central cross line, convenient by the timely centering position of weathercock pointer again.Last manual angle of attack weathercock 8, makes weathercock pointer 6 and angle of attack weathercock 8 servo-actuated, points to the aircraft angle of attack direction needed, realize the given in real time of aircraft angle of attack.

Claims

1. the setter of an aircraft angle of attack, containing pedestal, calibrated disc and weathercock pointer, it is characterized in that, described pedestal is an annular pedestal, the ring-shaped step supporting calibrated disc is equipped with in pedestal, the slotted ring that one corresponding with angle of attack weathercock is also had at the center of pedestal, this slotted ring is connected with the inner ring wing of pedestal, the outer shroud of pedestal is connected with sucked type leg by adjusting bolt, there is the annular disk of circular void at calibrated disc Shi Yige center, the surface of calibrated disc is provided with the scale mark of aircraft angle of attack, calibrated disc is placed on the ring-shaped step of pedestal inner ring, the tail end of weathercock pointer has a connecting bore be socketed with angle of attack weathercock,

2. the setter of aircraft angle of attack as claimed in claim 1, is characterized in that the briquetting being also provided with calibrated disc on the surface of circular base.