Overload protection, drive train comprising such an overload protection, device comprising a lifting tool, and method for applying working forces
AssigneeKIEFEL GmbH
InventorsAnton Huber, Johannes Crepaz
Life of this patent
Estimating the term…
Abstract
In order to further develop overload protection devices for machine tools, the invention relates to an overload protection comprising a force input element and a force output element which are rigidly and non-positively interconnected by means of a positive connection and can be moved relative to one another when an overload protection is actuated. The overload protection devices are characterized by an emergency running gear; by means of which the force input element and the force output element are interconnected so as to be guided towards each other in a controlled manner when the overload protection is actuated.
Claims22
An overload protection unit having a force input element and having a force output element, which are non-positively and rigidly connected to one another using a positive connection and which are movable relative to one another when an overload protection unit is actuated, characterized by an emergency running gear, using which the force input element and the force output element are connected to one another so they are guided controlled with one another when the overload protection unit is actuated.
A drive train having a first drive train link and having at least one second drive train link, which are situated fixedly connected to one another between a drive and a tool, an overload protection unit being situated between the first drive train link and the second drive train link wherein the drive train links are connected to one another as a composite of drive train links guided relatively movable to one another when an overload protection unit is actuated.
A device having a lifting tool for producing and/or processing a workpiece, in which the lifting tool is mounted so it is movable in the device using a drive train having an overload protection unit, further comprising
- an overload protection unit having a force input element and having a force output element, which are non-positively and rigidly connected to one another using a positive connection and which are movable relative to one another when an overload protection unit is actuated, characterized by an emergency running gear, using which the force input element and the force output element are connected to one another so they are guided controlled with one another when the overload protection unit is actuated.
A method for applying working forces to a lifting tool, which is driven using drive links guided on predetermined movement paths, and in which an overload protection unit is actuated in the event of a driving force overload, whereby drive links are disconnected from one another wherein the drive links are solely disconnected in regard to working forces when the overload protection unit is actuated, and guide forces interact between the disconnected drive links on the overload protection unit.
Dependencies are inferred from the claim text.