SHAFT COUPLING OF CONSTRUCTION MACHINE

PROBLEM TO BE SOLVED: To provide a shaft coupling of a construction machine which has a torque transmission surface made of a high elastic material and a metallic material and which achieves reduction in the wear volume of the torque transmission surface with the lapse of duration of use.SOLUTION: A...

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Hauptverfasser:	KAGIWADA HITOSHI, SAKURAI SHIGEYUKI, YOKOYAMA KAZURO, KOINO REI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CHEMICAL SURFACE TREATMENT CHEMISTRY CLUTCHES COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COUPLINGS FOR TRANSMITTING ROTATION DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a shaft coupling of a construction machine which has a torque transmission surface made of a high elastic material and a metallic material and which achieves reduction in the wear volume of the torque transmission surface with the lapse of duration of use.SOLUTION: A solid lubricant film made of a molybdenum disulfide, a graphite, calcium fluoride, or silicon dioxide is formed on the torque transmission surface 5b or 8g on a metal side. More preferably, a surface hardening layer obtained by salt bath nitriding, gas soft-nitriding, quenching and annealing, high-frequency quenching, carburizing quenching, or carbo-nitriding is formed on the torque transmission surface 5b or 8g on the metal side, and a solid lubricant film is formed on the surface hardening layer. More preferably, the surface hardening layer is roughened by manganese phosphate treatment or sand blasting or the like, and then a solid lubricant film is formed.