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GANTRY CANE

  • US 20110180506A1
  • Filed: 09/08/2009
  • Published: 07/28/2011
  • Est. Priority Date: 10/09/2008
  • Status: Abandoned Application
First Claim
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1. A gantry crane comprising a carriage serving to displace the gantry crane along a straight track formed by parallel rails (1), a plurality of carriage groups (11), each of the carriage groups (11) comprises at least two wheels (12) supported rotationally by a subframe (16) and spaced apart from each other in a longitudinal direction of a respective one of the rails (1), and with at least two of the carriage groups being connected to at least one end carriage (10) of the gantry crane, rotational about a vertical respective axis (23), with for at least one of the carriage groups (11) connected to the respective end carriage (10) and rotational about the respective vertical axis (23), at least one measurement device (26) is provided, the at least one measurement device is adapted to detect a track position of at least one of the wheels (12) of the carriage group (11) in reference to the rail (1) on which it rolls, and is adapted to output a track position value (a) corresponding to a respective track position, an actuator (28) is provided acting between the carriage group (11) and the respective end carriage (10), which is controlled via a control device (48, 49), which receives the track position value (a) output by the measurement device (26), and is adapted to impinge the carriage group (11) with a torque (m) about the vertical axis (23) that is determined by said control.

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