Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WIRE ROPE MONITORING DEVICE AND CRANE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/215043
Kind Code:
A1
Abstract:
Provided is a wire rope monitoring device that prompts focused inspection near the end of wire rope and assists in using a hoisting machine in a safe condition. An electric motor 3 for hoisting that rotates a drum that winds wire rope 2, a load swing angle detection device 110, and an inverter control device 12 that controls the electric motor 3 for hoisting monitor the wire rope by measuring the number of times the wire rope 2 near an end support device bends for each load on the basis of the output of the load swing angle detection device 110 and the load state estimated from the output current and rotational state of the electric motor 3 for hoisting, and record the number of times the wire rope 2 bends for each load state.

Inventors:
TAGAMI TATSUYA (JP)
Application Number:
PCT/JP2020/046522
Publication Date:
October 28, 2021
Filing Date:
December 14, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
B66C15/00; B66C13/16; B66D1/54
Foreign References:
JP2010149980A2010-07-08
JP2018039603A2018-03-15
JP2016088652A2016-05-23
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
Download PDF: