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US 2022/0120054 A1Published application
Quick-Change System for Changing Attachments on a Construction Machine
AssigneeOilQuick Deutschland KG
InventorStefan SCHAUER
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AssigneeOilQuick Deutschland KG
InventorStefan SCHAUER
Estimating the term…
A quick-change system for changing attachments on a construction machine with a quick coupler arranged to be pivotable about a pivot axis orthogonal to the axis of rotation by means of a hydraulic slewing drive and rotatable about an axis of rotation on a connection part by means of a hydraulic rotary drive contains mounts and at least one locking element which can be actuated by means of a hydraulic drive to hold an attachment coupled to the quick coupler. The quick-change system includes a hydraulic control device, which contains a first control circuit to drive rotary drive and slewing drive, at least one additional control circuit to supply the attachment coupled to the quick coupler and a shuttle valve arrangement to expose the hydraulic drive to the higher pressures acting in the first or the at least one additional control circuit to activate the at least one locking element.
A quick-change system for changing attachments on a construction machine with a quick coupler, which is arranged pivotable about a pivot axis orthogonal to an axis of rotation by means of a hydraulic slewing drive and rotatable on a connection part by means of a hydraulic rotary drive about the axis of rotation, and which contains mounts and at least one locking element actuatable by means of a hydraulic drive to hold an attachment coupled to quick coupler, wherein a hydraulic control device, which contains a first control circuit to control the rotary drive and the slewing drive, at least one additional control circuit to supply the attachment coupled to the quick coupler and a shuttle valve arrangement to expose the hydraulic drive to the higher pressures acting in the first or the at least one additional control circuit for actuation of the at least one locking element.
Dependencies are inferred from the claim text.