An agricultural machine includes a frame, and a lifting unit configured to vary a height of an operating unit with respect to a supporting surface for the machine. The lifting unit includes hydraulic cylinder with a liner and first and second pistons both slidingly housed inside the liner and arranged in series to define first and second chambers inside the liner, wherein the first and second pistons are controllable independently. The lifting unit includes a pressure stabilizer in fluid connection with the first chamber and that controls a pressure in the first chamber so that the first piston moves therein as a force generated on the first piston varies. A second control element for the second chamber carries out a volumetric control of the second chamber to control a position of the second piston regardless of a pressure inside the second chamber.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Agricultural machine lifting unit


    Beteiligte:

    Erscheinungsdatum :

    10.11.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    A01D Ernten , HARVESTING / A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / F16F SPRINGS , Federn



    Lifting machine for agricultural machines

    ZHOU WUXIAN | Europäisches Patentamt | 2016

    Freier Zugriff

    Lifting appliance for agricultural machine manufacturing

    CHEN FUTANG | Europäisches Patentamt | 2021

    Freier Zugriff

    Combined agricultural well casing lifting machine

    WANG ZHENWU | Europäisches Patentamt | 2024

    Freier Zugriff

    HOISTING MACHINE LIFTING JIG UNIT AND HOISTING MACHINE LIFTING METHOD

    TAWARA SHINSUKE / SHIKI TOMOHIRO | Europäisches Patentamt | 2015

    Freier Zugriff

    Agricultural machine tool transfer lifting plate trailer

    CAO ZHENXING | Europäisches Patentamt | 2025

    Freier Zugriff