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Bearing resource analyzer ARP 11

Ultrasonic acoustic emission device, bearings technical condition data collector.

Анализатор ресурса подшипников АРП 11
Ультразвуковой акустико-эмиссионный прибор сборщик данных технического состояния подшипников

FUNCTION:

Rolling bearings technical condition control based on operating bearing acoustic emission signal analysis in ultrasonic frequencies 20 to 300 KHz, bearing unit resource definition, database compilation for equipment of different types, complexity, configuration with non-stop operating bearings frequency range 10 to 10,000 revolutions per minute.

The more complicated, compact and powerful the diagnosed equipment is, the more complicated it is to determine the actual reason, that can lead to breakdown, accident or catastrophe, and the more experienced critical equipment diagnostician is needed.

We do not measure vibrations of machinery and mechanisms that depend on disequilibrium (elements and units disbalance), centering and operation speed. There is no need for an experienced diagnostician, because the device implements a computer-aided technology of acoustic emission signals processing. Bearing technical condition calculation is made in 5 seconds.

  • Our diagnostics technology:
  • Reliability 95-98 %
  • Operating equipment noise protection
  • Flaw detection at an early stage of development
  • Detection of lack of lubricant and lubricant watering

The theory is proved by the research of scientists of the Academy of Sciences of the Russian Federation.

Having examined the acoustic emission parameters let’s analyze acoustic emission signal sources in the ultrasonic range generated by an operating bearing.

The main acoustic emission signal shaping sources in an ultrasonic frequency range are:

  • Elastic waves from normal and tangential stress contact patches in object near-surface layers and races at rotation from acting loads;
  • Microblows due to objects and races surface roughness, which intensify because of lubricant destruction;
  • Hydrodynamic effects from lubricant in the contact stress area of rolling elements and races;
  • Pulse signals from crack formation in rolling elements metal;
  • Microblows and blows from rolling of defective surfaces (flaking, chips, etc.);
  • Microdisplacements of the outer race in the bearing housing;
  • Bearing seat wear, accompanied by sliding shifting of mounting sleeves relative to seats;
  • Microslippage of rotary bodies onto races.

DIAGNOSTICS advantages

  1. Equipment inspection high speed;
  2. Simplicity of device control;
  3. Digital and graphical diagnostics parameters representation;
  4. Displaying defective unit energy spectrum;
  5. Windows friendly software
  6. Device electronic parts autotest before operating;
  7. Creating a database with 3 types of reports formation.

Equipment:
Type: ChS6
Unit: KMB-1
Number: 20
Point: P.Buks. (2)
Measured values:
Parameter D: 105
Parameter А: 1856
Measurement conditions:
Rotating speed [revolutions per minute]: 295
Permissible D: 203
Resource: 48%

Equipment:
Type: Turbine
Unit: Generator
Number: 1
Point: Bearing 8
Measured values:
Parameter D: 2 7
Parameter А: 1451
Measurement conditions:
Rotating speed [revolutions per minute]: 3000
Permissible D: 400
Resource: 93%

Device report forms
Measurements report

J measurem. Type Unit Number Point Date Time D А Resource (%)
240 Pump TsNSG-60 1 P.Nas.Z. 1 1/03/05 15:52 29 12875 95
241 Pump TsNSG-60 1 P.El.P. 11/03/05 15:52 62 1464 92
242 Pump TsNSG-60 1 P.Nas.P. 11/03/05 15:53 211 1771 67
243 Pump TsNSG-60 1 P.Nas.Z. 11/03/05 15:53 31 2451 95

Device maintenance advantages:

  1. Compact: 37*70*229 mm
  2. Light: 490 g
  3. Dust-proof and damp-proof
  4. Temperature range: -10оС to +55 оС
  5. Warranty: 18 months
  6. No special personnel education is required

Device field of application:

  1. Railway transport
  2. Subway
  3. City electric transport
  4. Motor transport
  5. Energetics. Boiler rooms
  6. Water transport
  7. Oil processing and petrochemistry
  8. Natural gas industry
  9. Mining industry
  10. Chemical industry
  11. Aviation