Aircraft wheel (wheel hub) automatic detection system

1.Overviews

When planes sliding, taking off, and landing, the wheels are main load-bearing parts, especially under the massive landing impact and the braking thermal stress, so it is important for the safety of the aircraft whether the wheels are in good conditions. If wheel hubs are cracked, with the aircraft take-off and landing, the cracks of wheels should be extended under common actions of gas pressure and strong impact, in less severe cases the air leakage in wheel hub usage can affect the normal operation of flight, serious when it can cause wheel hub cracking and flew out of the body, causing serious consequences. Fatigue crack is main form of wheel hub crack and the vortex testing is the method to detect the integrity of aircraft wheel hub quickly and reliably and recognized by the world.

ETS - Ⅳ aircraft wheel hub automatic vortex testing system is a set of mature hub detection system. It is based on advanced vortex testing equipment and combined with stable and flexible mechanism to realize the automatic flaw detection of aircraft wheel hub. The system has fast detecting speed, high reliability, wide adaptation, high resolution and sensitivity, and provides a perfect solution for detection of aircraft wheel hub. It is especially suitable for the maintenance departments with large quantity of wheel hub overhaul.

2.Technical features

Automatic flaw detection

Fast detecting speed

Easy operation and reliable

High resolution and sensitivity

3.Technical specifications

1) Vortex instrument: EEC - 5097 dual-frequency vortex flaw detector

2) Probe: absolute point probe, 5 mm to 10 mm in diameter, frequency,: 100 KHz ~ 2 MHz

3) Display mode: time base, impedance plane C - SCAN, etc.

4) Scan height: 415 mm

5) Wheel hub outer diameter range: 0 ~ 800 mm

6) Wheel hub inter diameter range: 70 ~ 200 mm

7) Wheel hub maximum weight: 250 kg

8) Distance of travel for lifter: 210mm

9) The speed for probe movement: probe X/Y moving speed up to 200 mm/s

10) Wheel hub operation: rolling platform, with height and angle position encoder, safety elevate and inertia aligning

11) Safety elevate aligner: automatic aligning and ensure safely clamping of wheel hub, applicable inter diameter of wheel hub from 70 mm to 200 mm

12) Surface detection speed: the largest is 2 m/s

13) Spiral scan step pitch: 0 ~ 25 mm, adjusting unit 0.1 mm

14) direction: from top to bottom

15) Data storage: mass storage testing parameters and data, hard disk 500 G

16) Inspection report: inspection report is divided into three parts (block flaw signals, hub flaw signals, block flaw signals), the three parts together, reflect intuitively situations of wheel hub.

17) Inspection way: from top to down/from down to top

18) Unit weight: about 1000 kg

19) Overall dimension: 1050 * 1050 * 1050 (unit: mm)

4.Check range

The overall detection for wheel hub surface

The ultrasonic testing for wheel hub bearing position

The detection for wheel hub bolt hole

The vortex testing for root of wheel hub brake key.

5.Up to standard

Conforms to China's civil aviation MH/T 3015-2006 aircraft NDT vortex testing standards.