CN212195975U

CN212195975U - Sealed test fixture of angle of attack sensor

Info

Publication number: CN212195975U
Application number: CN202020119242.3U
Authority: CN
Inventors: 龚超然; 邵捷; 胡彦泽; 文青春
Original assignee: Beijing Andawell Ltd
Current assignee: Beijing Andawell Ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-12-22
Anticipated expiration: 2030-01-19

Abstract

A seal test tool for an attack angle sensor comprises an airtight barrel, wherein an adaptive disc is arranged at the bottom of the airtight barrel, and an air tap is arranged in the middle of the top of the airtight barrel; the incidence angle sensor is arranged on the adapter disc, and blades of the incidence angle sensor penetrate through the adapter disc and are positioned inside the airtight barrel; the air faucet is connected with the air faucet of the atmospheric data tester, and the airtight barrel of the sealing test tool ensures that the test of the attack angle sensor is not influenced by the blade; the utility model provides a to testing arrangement of angle of attack sensor leakproofness, inside the aqueous vapor entering part on avoiding the blade of angle of attack sensor on the aircraft, influence the normal flight of aircraft. The utility model discloses all installations and cooperation size are accurate, and structural design is reasonable, can not cause any injury and damage to angle of attack sensor and operating personnel.

Description

Sealed test fixture of angle of attack sensor

Technical Field

The utility model relates to an aerial detection field especially relates to an angle of attack sensor seals test fixture.

Background

The angle of attack sensor is usually installed at the front end of the aircraft nose or on both sides of the aircraft body, and changes the direction of the blade through the change of the airflow so as to measure the airflow direction relative to the aircraft body; the measurement of the angle of attack during flight is very important, and the error or failure of the angle of attack sensor can cause great influence on the flight. According to investigation, at present, a test tool of a system for testing the attack angle sensor on the ground is not found, so that the test connection of the attack angle sensor is complicated, the operation is complex, and the test is easy to cause errors due to manual operation errors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an angle of attack sensor seals test fixture to solve the aforementioned problem that exists among the prior art.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

a sealing test tool for an attack angle sensor comprises an airtight barrel, wherein an adaptive disc is arranged at the bottom of the airtight barrel, and an air tap is arranged at the top end of the airtight barrel; the attack angle sensor is fixedly arranged below the adaptive disc, and blades of the attack angle sensor penetrate through the middle of the adaptive disc and are positioned inside the airtight barrel; the air tap is connected with an atmospheric data tester.

Preferably, the adapter disc and the attack angle sensor are fixedly connected through a flange.

Preferably, a flange is arranged on the adapting disc and corresponds to a mounting hole of the flange on the attack angle sensor.

Preferably, a sealing strip is installed at the position of the adapter disc, through which the blades pass.

Preferably, the airtight barrel is provided with an inclination angle according to a turning radius of the blade.

Preferably, the air tap is connected with an air tap of the atmospheric data tester.

The utility model has the advantages that: the utility model discloses a sealing test tool for an attack angle sensor, which discloses a device for conveniently monitoring the ground of the attack angle sensor; the airtight barrel provides a closed environment for the attack angle sensor and provides a detection environment for detecting the sealing performance of the blade part of the attack angle sensor; the utility model provides a to testing arrangement of angle of attack sensor leakproofness, inside the aqueous vapor entering part on the blade of the angle of attack sensor that can avoid using on the aircraft, influence the normal flight of aircraft. The utility model has the advantages of accurate installation and matching size, reasonable structural design, in-place processing, avoiding human error, and avoiding any damage to the attack angle sensor and the operators; the design is succinct, and it is swift convenient to use, operates safe and reliable to the later maintenance is simple, has guaranteed the seaworthiness to angle of attack sensor test and maintenance process.

Drawings

FIG. 1 is a schematic view of a seal testing tool mounting structure;

FIG. 2 is a schematic view of a hermetically sealed bucket construction;

FIG. 3 is a schematic diagram of an adapter tray structure;

in the figure: 1-airtight barrel, 2-attack angle sensor, 11-adaptive disc, 12-air nozzle, 13-flange, 14-sealing strip, 21-blade.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

An incidence angle sensor sealing test tool is provided, the mounting structure of which is shown in fig. 1, and comprises an airtight barrel 1, as shown in fig. 2, wherein the airtight barrel 1 is designed with a certain inclination angle according to the shape of a blade 21 of an incidence angle sensor 2; an adaptive disc 11 is arranged at the bottom end of the airtight barrel 1, as shown in fig. 3, a flange 13 is arranged on the adaptive disc 11 and corresponds to a mounting hole on the flange 13 of the attack angle sensor 2, the attack angle sensor 2 is fixed below the adaptive disc 11 through the flange 13, the blade 21 passes through the middle of the adaptive disc 11, and a sealing strip 14 is arranged on a hole of the adaptive disc 11 passing through the blade 21; the top end of the airtight barrel 1 is provided with an air tap 12, the air tap 12 corresponds to the air tap 12 in the atmosphere data tester, and the sealing test tool can pass through the air tap 12 and be connected with the atmosphere data tester.

Since the blade 21 of the angle of attack sensor 2 is located outside the aircraft during the flight of the aircraft, and the outside temperature difference during the flight of the aircraft is large, moisture is inevitably generated on the blade 21, and if the moisture flows into the inside of the angle of attack sensor 2, the damage of the internal components is likely to affect the normal flight of the stage.

The working principle of the sealing test tool for the attack angle sensor 2 is as follows: creating an environment without gas flowing for the blades 21 by using the airtight barrel 1, and connecting the environment with the atmospheric data tester through an air nozzle 12 at the top of the airtight barrel 1 to monitor the gas in the airtight barrel 1 so as to enable the gas to be unchanged; then, gas around the attack angle sensor 2 flows, and if the atmospheric data tester changes, the problem of air tightness of a blade part of the attack angle sensor 2 is solved; if the atmospheric data tester does not change, it indicates that there is no problem with the air tightness of the blade part of the attack angle sensor 2, and naturally, the moisture on the blade 21 will not flow into the attack angle sensor.

Examples

Sealed test fixture's airtight bucket 1's size and the flange position of connecting usefulness all process according to the concrete measurement size of the angle of attack sensor that awaits measuring.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect: the utility model discloses a sealing test tool for an attack angle sensor, which discloses a device for conveniently monitoring the ground of the attack angle sensor; the airtight barrel provides a closed environment for the attack angle sensor and provides a detection environment for detecting the sealing performance of the blade part of the attack angle sensor; the utility model provides a to testing arrangement of angle of attack sensor leakproofness, inside the aqueous vapor entering part on the blade of the angle of attack sensor that can avoid using on the aircraft, influence the normal flight of aircraft. The utility model has the advantages of accurate installation and matching size, reasonable structural design, in-place processing, avoiding human error, and avoiding any damage to the attack angle sensor and the operators; the design is succinct, and it is swift convenient to use, operates safe and reliable to the later maintenance is simple, has guaranteed the seaworthiness to angle of attack sensor test and maintenance process.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. The sealing test tool for the attack angle sensor is characterized by comprising an airtight barrel, wherein the bottom of the airtight barrel is an adaptive disc, and the top end of the airtight barrel is provided with an air tap; the attack angle sensor is fixedly arranged below the adaptive disc, and blades of the attack angle sensor penetrate through the middle of the adaptive disc and are positioned inside the airtight barrel; the air tap is connected with an atmospheric data tester.

2. The sealing test tool for the attack angle sensor according to claim 1, wherein the adapter disc is fixedly connected with the attack angle sensor through a flange.

3. The sealing test tool for the attack angle sensor according to claim 2, wherein a flange is arranged on the adapter disc and corresponds to a mounting hole of the flange on the attack angle sensor.

4. The sealing test tool for the attack angle sensor according to claim 1, wherein a sealing strip is installed at a position of the adapter disc where the blade passes through.

5. The sealing test tool for the attack angle sensor according to claim 1, wherein the airtight barrel is provided with an inclination angle according to a rotation radius of the blade.

6. The angle of attack sensor seal test fixture of claim 1, wherein the air tap is connected to an air tap of the atmospheric data tester.