Title:
DYNAMIC LOAD EVALUATION DEVICE, SYSTEM, AND CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2014/141855
Kind Code:
A1
Abstract:
The present invention is provided with: an input unit (20) to which are input the signals of accelerometers (11-13) provided to the frame (5) of a hydraulic shovel (1); a signal processing unit (30) that performs computation processing on the signals of the accelerometers (11-13); and an output unit (40) that outputs the computation results of the signal processing unit (30). The signal processing unit (30) is provided with: a load computation unit (31) that, on the basis of the output of the accelerometers (11-13), computes a load-corresponding amount (D), which is an amount corresponding to the load incurred by the frame (5) stemming from vibrations; and a fatigue level computation unit (32a) that, as the fatigue level of the frame (5), computes the fraction that is the cumulative value of the load-corresponding amount (D) within a pre-set permitted cumulative load for the frame (5). As a result, it is possible to evaluate the dynamic load of a structure of a construction machine.
Inventors:
IIJIMA HIDEAKI (JP)
Application Number:
PCT/JP2014/054150
Publication Date:
September 18, 2014
Filing Date:
February 21, 2014
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY (JP)
International Classes:
E02F9/20; E02F9/26; G05B23/02
Foreign References:
| JP2005163470A | 2005-06-23 | |||
| JP2003119830A | 2003-04-23 |
Attorney, Agent or Firm:
KAICHI IP (JP)
Patent business corporation development-of-knowledge international patent firm (JP)
Patent business corporation development-of-knowledge international patent firm (JP)
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