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An open wind tunnel elevating system for aircraft testing and its elevating method

A technology of aircraft testing and lifting system, which is applied in the direction of aircraft component testing, machine/structural component testing, lifting frame, etc. It can solve the problems of low safety performance, low test accuracy, and inability to perform classification, and achieve reliable stability and positioning functions, avoid unsafe accidents, and test the comprehensive effect of data

Active Publication Date: 2022-07-29
CHINA AIRPLANT STRENGTH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the existing lifting system uses the hydraulic cylinder to lift, it cannot be carried out in stages, so that the stroke of the hydraulic cylinder is long and the stability is poor. At the same time, when the weighing equipment accidentally falls, there is no buffer element, which is easy to cause major accidents and has low safety performance. Adjust the pitch angle and horizontal rotation angle of the fan module so that the formed wind force does not meet the multi-angle blowing characteristics of natural wind, resulting in low test accuracy

Method used

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  • An open wind tunnel elevating system for aircraft testing and its elevating method
  • An open wind tunnel elevating system for aircraft testing and its elevating method
  • An open wind tunnel elevating system for aircraft testing and its elevating method

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Embodiment 1

[0039] like figure 1 , 3 As shown in the figure, an open wind tunnel lifting system for aircraft testing and a lifting method thereof, including a tooling standard section 1, a scissor lifting mechanism 2 and a fan module 3, which are distributed in order from bottom to top, control the position of the normal operation of each electrical component monitoring device 4;

[0040] The bottom end of the tooling standard section 1 is provided with a wear-resistant rubber pad 10. The tooling standard section 1 is a structure in which a single section is spliced ​​into a tower crane standard section. The section size of the tooling standard section 1 is 6m × 2.2m, and the height of each single section is 1m, the weight is 1t;

[0041] The scissor lift mechanism 2 includes an installation base plate 20 connected with the upper end of the tooling standard section 1 by bolts, and two sliding mounting brackets 21 arranged on the left and right sides of the upper end of the installation ...

Embodiment 2

[0048] This embodiment differs from Embodiment 1 in that:

[0049] like image 3 As shown, a second installation groove 234 is formed at the upper center of the adjustment table 232, and a first angle adjustment component 5 is arranged in the second installation groove 234. The first angle adjustment component 5 includes a horizontally arranged in the second installation groove 234 and The first rotating gear 50 and the second rotating gear 51 meshing with each other, the motor 52 for driving the first rotating gear 50 to rotate, the reducer 53 located at the first rotating gear 50 , and the first angle sensor located on the adjustment table 232 54. The first rotating gear 50 is connected with the fan module 3 through a rotating shaft.

Embodiment 3

[0051] This embodiment differs from Embodiment 1 in that:

[0052] like Figure 4 As shown, the second installation groove 234 is provided with a buckle deceleration assembly 25. The buckle deceleration assembly 25 includes an arc-shaped buckle cover 250 arranged in the horizontal direction and provided with serrations 2500 at the opening. For the first electric telescopic rod 251 between the inner walls of the two installation slots 234 , the arc-shaped opening direction of the arc-shaped buckle cover 250 is opposite to the second rotating gear 51 .

[0053] like Figure 5 As shown, a buffer hollow sphere 252 is provided between the arc-shaped buckle cover 250 and the first electric telescopic rod 251, and the buffer hollow sphere 252 has buffer openings 253 distributed along the rotation direction of the second rotating gear 51 on the outer wall. There are anti-collision strips 254 around the 253, a mounting ball 255 is arranged in the buffer hollow ball 252, and the outer...

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Abstract

The invention discloses an open wind tunnel lifting system for aircraft testing and a lifting method thereof, belonging to the technical field of aircraft testing. The system includes tooling standard sections, scissor lift mechanism, fan module, and a position monitoring device that controls the normal operation of each electrical component, which are distributed in sequence from bottom to top. The lifting height of the fan module is roughly adjusted and finely adjusted by the scissor lift mechanism, so that the fan module with large weight and high torque can be sent to the designated position, and reliable stability and positioning functions are provided, and the scissor lift mechanism adopts The process of grading and lifting shortens the stroke of a single hydraulic scissor frame. The invention can not only adjust the lifting height of the fan module, but also adjust the horizontal rotation angle and pitch angle of the fan module, better imitating the natural wind of various blowing angles, and making the test data more comprehensive and accurate.

Description

technical field [0001] The invention belongs to the technical field of aircraft testing, in particular to an open wind tunnel lifting system for aircraft testing and a lifting method thereof. Background technique [0002] The air blowing test system is one of the special environment simulation systems of the climate environment laboratory. It is mainly composed of a wind array subsystem and a wind tunnel subsystem, and is used to conduct air blowing simulation environment tests in the laboratory. According to the structure, the blowing test device is composed of the upper and lower layout of the fan module and the lifting module. The fan module includes an axial flow fan, a matching motor, a round-square transition section and an equal-straight section, etc., providing different quality (speed / humidity / wind direction) )wind of. However, due to the high position of the aircraft fuselage and various environmental test conditions, a lifting platform is required to complete the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04B66F7/08B66F7/28B66F7/22F16F15/02B64F5/60
CPCG01M9/04B66F7/08B66F7/0666B66F7/28B66F7/22F16F15/02B64F5/60
Inventor 田培强刘晓晖任战鹏张亚娟孙永平刘海燕吴敬涛
Owner CHINA AIRPLANT STRENGTH RES INST