Hydraulic unit for a mobile hydraulic tool

The invention relates to a hydraulic unit for a mobile hydraulic tool with a hydraulic piston hydraulically adjustable between a starting position and an end position and a piston rod that is connected to the hydraulic piston and has a tool holder for a tool insert. In order to provide a hydraulic u...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Buchholz, Karl
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAND TOOLS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MANIPULATORS MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a hydraulic unit for a mobile hydraulic tool with a hydraulic piston hydraulically adjustable between a starting position and an end position and a piston rod that is connected to the hydraulic piston and has a tool holder for a tool insert. In order to provide a hydraulic unit for a mobile hydraulic tool that enables the use of tool inserts with different load bearing capacity, it is provided that a pressure control valve connecting the pressure chamber to a cylinder chamber and limiting the pressure acting on a hydraulic piston on the pressure chamber side is arranged on the hydraulic piston and is connected to the piston rod such that a response pressure of the pressure control valve can be adjusted by the piston rod.