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Provided is a driving apparatus capable of effectively preventing impact at the stroke end in the hydraulic cylinder. The driving apparatus includes a hydraulic pump (31,32), a cylinder control valve (37,38), an operation member (47a), a drive command input unit (34, 47b) inputting a cylinder drive command corresponding to a cylinder operation applied to the operation member (47a) to the cylinder control valve (37,38), a cylinder stroke detection unit (50,70), a cylinder drive command restriction unit (42A,42B, 50) restricting the cylinder drive command in response to the cylinder stroke to stop a piston (27p) of a hydraulic cylinder (27) before the stroke end.
Provided is a driving apparatus capable of effectively preventing impact at the stroke end in the hydraulic cylinder. The driving apparatus includes a hydraulic pump (31,32), a cylinder control valve (37,38), an operation member (47a), a drive command input unit (34, 47b) inputting a cylinder drive command corresponding to a cylinder operation applied to the operation member (47a) to the cylinder control valve (37,38), a cylinder stroke detection unit (50,70), a cylinder drive command restriction unit (42A,42B, 50) restricting the cylinder drive command in response to the cylinder stroke to stop a piston (27p) of a hydraulic cylinder (27) before the stroke end.
DRIVE DEVICE FOR HYDRAULIC CYLINDER IN WORK MACHINE
ANTRIEBSVORRICHTUNG FÜR HYDRAULIKZYLINDER IN EINER ARBEITSMASCHINE
DISPOSITIF D'ENTRAÎNEMENT POUR VÉRIN HYDRAULIQUE DANS UNE MACHINE DE TRAVAIL
UEDA KOJI (author)
2023-06-28
Patent
Electronic Resource
English