| 摘要 |
A coil-laying head for a wire-coiling apparatus has a tubular body centered on and rotatable about an axis, a generally spiral guide tube having an inlet end at the axis and an outlet end opening generally tangentially of the axis at a radial spacing from the axis, and a helicoidal mounting plate having an inner edge fixed to the body and an outer edge secured to the tube. A helicoidal counterweight plate is fixed to the tubular body diametrally opposite the mounting plate and has radial and axial dimensions, at least one of which varies such that any section of the counterweight plate counterbalances a corresponding diametrally opposite section of the guide tube and mounting plate. The counterweight plate has a resonant frequency and the body has a nominal maximum rotation speed that is less than the resonant frequency.
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