FIELD: machine building.
SUBSTANCE: servo drive comprises first step that doubles as a preliminary control stage and second stage that operates as power stage. Note here that pipe with sprayer is directed by torsion element and device to feed oil into moving pipe with sprayer is integrated with torsion element. Note here a seal is arranged at the joint between torsion element of the pipe and pipe with sprayer at the centre of revolution.
EFFECT: higher reliability.
16 cl, 2 dwg
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