Skip to main content

Search Proceedings

MEASURING THE ESCALATOR TRANSMISSION EFFICIENCY

P. J. Kral
  • Abstract:
    At the Institute for Machine Elements and Machine Design three different escalator (moving staircase) gearboxes were tested to compare their coefficient of efficiency. The tested gears are two worm gears and a bevel-spur gear. The two worm gears differ in its tooth shape (hollow flank – involute flank).
    For this purpose a test bed consisting of gearbox, electric motor and regulated pendulum generator was built up.
    To calculate the coefficient of efficiency it is necessary to measure the input- and output-torque at both gear shafts. First is done by measuring the effective power (2- Wattmeter Method) of the electric motor. The second value, the output-torque, could be controlled with aid of the brake generator and is exactly known.
    The coefficient of efficiency of each gear is measured for both directions at idle, 25%, 40%, 50%, 75% and full load.
  • Keywords:
    gears, efficiency, coefficient of efficiency
  • Download:
  • DOI:
    _unreg_wc-2000.081

Event details:

  • IMEKO TC:
  • Event name:
    XVI IMEKO World Congress
  • Title:

    Measurement - Supports Science - Improves Technology - Protects Environment ... and Provides Employment - Now and in the Future

  • Place:
    Vienna, AUSTRIA
  • Time:
    25 September 2000 - 28 September 2000