Hydraulic control system of lifting driver of lifting support of ground conveying vehicle and ground conveying vehicle

• Main Author: SCHWAB MANUEL
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HAULING; HEATING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; HYDRAULICS OR PNEUMATICS IN GENERAL; LIFTING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TRANSPORTING; WEAPONS

The invention relates to a hydraulic control system (1) for a lifting drive (2) of a lifting support of a ground conveying vehicle, the control system (1) having a control direction valve device (5) which is connected to a conveying line (11) of a hydraulic pump (11), to a container line (13) leading to a container (12) and to a connecting line (14) leading to the lifting drive (2), wherein the control direction valve device (5) is designed to control a lifting operation and a lowering operation of the lifting drive (2). According to the invention, the control system (1) has a pressure safeguard valve (40) which is associated with the connecting line (14), the pressure safeguard valve (40) being designed to limit a pressure peak introduced into the lifting support in the event of a malfunction of the control direction valve device (5). 本发明涉及一种地面输送车辆的升降支架的升降驱动器(2)的液压控制系统(1)，其中该控制系统(1)具有控制方向阀装置(5)，该控制方向阀装置与液压泵(11)的输送管路(11)、通往容器(12)的容器管路(13)和通往升降驱动器(2)的连接管路(14)连接，其中所述控制方向阀装置(5)构造用于控制所述升降驱动器(2)的提升运行和下降运行。所述控制系统(1