BOLT DETACHING DEVICE

PROBLEM TO BE SOLVED: To automatically fasten and loosen the bolt heated by the bolt heater inserted into the center hole of a bolt without requiring operators to monitor and stand-by the bolt. SOLUTION: A bolt heater 9 is inserted into the bolt hole 3 of a bolt 4 for fastening flanges 1 and 2. Torq...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KONO TAKAYUKI, SHIMAMOTO TAKIJIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED OPERATIONS DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HEATING LIGHTING MACHINE TOOLS MACHINES OR ENGINES IN GENERAL MANIPULATORS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES OTHER WORKING OF METAL PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS STEAM ENGINES THERMAL INSULATION IN GENERAL TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To automatically fasten and loosen the bolt heated by the bolt heater inserted into the center hole of a bolt without requiring operators to monitor and stand-by the bolt. SOLUTION: A bolt heater 9 is inserted into the bolt hole 3 of a bolt 4 for fastening flanges 1 and 2. Torque is given to the upper nut 5 to be threadedly engaged to the bolt 4 by a nut turning device 11 through a drive belt 13. The elongation value of the bolt 4 due to heat obtained by an extensometer 10, the turning angle detection signal of the nut turning device 11, the predetermined heat elongation quantity of the bolt 4 by a condition setting device 18, and the predetermined turning angle by the upper nut 5 are given to a control device 17. The control device 17 controls the power supply 16 of a bolt heater so that the bolt 4 performs predetermined elongation and the nut turning device 11 turns the upper nut 5 at a predetermined angle.