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Dunaiturria Y Estancona S A
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Dunaiturria Y Estancona S A
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Application filed by Dunaiturria Y Estancona S AfiledCriticalDunaiturria Y Estancona S A
Priority to ES1975210507UpriorityCriticalpatent/ES210507Y/en
Publication of ES210507UpublicationCriticalpatent/ES210507U/en
Application grantedgrantedCritical
Publication of ES210507YpublicationCriticalpatent/ES210507Y/en
Gear change device, which is preferably applicable to heads of machine tools, such as milling machines, is essentially characterized in that it is composed of the combination of three parallel axes, the center being displaceable longitudinally, by means of oil-hydraulic pressure, the which has three coaxial gears, of different diameter, the largest of which permanently couples with another gear fixed to the primary or force input shaft, the transmission from the central shaft to the output shaft through the coupling being made between any of the other two pinions of the central axis itself, with separate gears of different sizes between them, fixed in opposite areas of the said output shaft. (Machine-translation by Google Translate, not legally binding)
A control device to change the transmission relationship of a torque of axes of two-speed drives. (Machine-translation by Google Translate, not legally binding)