A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lifting hydraulic system and loading machine
The invention relates to a load holding valve, and provides a lifting hydraulic system and a loader in order to solve the problem that a load holding protection function and a hydraulic damping module in an existing lifting hydraulic system cannot be compatible. Wherein the lifting hydraulic system comprises a hydraulic damping module, a controller, a pressure sensor and a load holding valve which are connected with large and small cavity interfaces of a lifting oil cylinder control valve; the load holding valve comprises a cone valve, a load holding control electromagnetic valve with a control end electrically connected with the controller, and a damping hole; the oil inlet end and the oil outlet end of the cone valve are respectively communicated with the lifting oil cylinder control valve large cavity interface and the lifting oil cylinder large cavity; the hydraulic control end of the cone valve is communicated with a load port through a damping hole and is connected with a T port through a load keeping control electromagnetic valve; the controller correspondingly controls the load keeping control electromagnetic valve to be in a cut-off state and a conduction state according to whether the pressure of a large cavity connector of the lifting oil cylinder control valve is smaller than a preset value or not. According to the invention, a movable arm damping function and a load keeping function can be realized on the loader at the same time.
本发明涉及负载保持阀，为解决现有升降液压系统中负载保持保护功能与液压减震模块无法兼容的问题，本发明构造一种升降液压系统和装载机，其中升降液压系统包括与升降油缸控制阀大小腔接口连接的液压减震模块、控制器、压力传感器和负载保持阀；负载保持阀包含锥阀、控制端与控制器电连接的负载保持控制电磁阀、阻尼孔；锥阀的进出油端分别与升降油缸控制阀大腔接口和升降油缸大腔连通；锥阀液控端经阻尼孔与负载口连通和经负载保持控制电磁阀与T口连接；控制器依据升降油缸控制阀大腔接口压力是否小于预定值对应地控制负载保持控制电磁阀处于截止状态和导通状态。本发明中能够在装载机上同时实现动臂减震功能与负载保持功能并存。
Lifting hydraulic system and loading machine
The invention relates to a load holding valve, and provides a lifting hydraulic system and a loader in order to solve the problem that a load holding protection function and a hydraulic damping module in an existing lifting hydraulic system cannot be compatible. Wherein the lifting hydraulic system comprises a hydraulic damping module, a controller, a pressure sensor and a load holding valve which are connected with large and small cavity interfaces of a lifting oil cylinder control valve; the load holding valve comprises a cone valve, a load holding control electromagnetic valve with a control end electrically connected with the controller, and a damping hole; the oil inlet end and the oil outlet end of the cone valve are respectively communicated with the lifting oil cylinder control valve large cavity interface and the lifting oil cylinder large cavity; the hydraulic control end of the cone valve is communicated with a load port through a damping hole and is connected with a T port through a load keeping control electromagnetic valve; the controller correspondingly controls the load keeping control electromagnetic valve to be in a cut-off state and a conduction state according to whether the pressure of a large cavity connector of the lifting oil cylinder control valve is smaller than a preset value or not. According to the invention, a movable arm damping function and a load keeping function can be realized on the loader at the same time.
本发明涉及负载保持阀，为解决现有升降液压系统中负载保持保护功能与液压减震模块无法兼容的问题，本发明构造一种升降液压系统和装载机，其中升降液压系统包括与升降油缸控制阀大小腔接口连接的液压减震模块、控制器、压力传感器和负载保持阀；负载保持阀包含锥阀、控制端与控制器电连接的负载保持控制电磁阀、阻尼孔；锥阀的进出油端分别与升降油缸控制阀大腔接口和升降油缸大腔连通；锥阀液控端经阻尼孔与负载口连通和经负载保持控制电磁阀与T口连接；控制器依据升降油缸控制阀大腔接口压力是否小于预定值对应地控制负载保持控制电磁阀处于截止状态和导通状态。本发明中能够在装载机上同时实现动臂减震功能与负载保持功能并存。
Lifting hydraulic system and loading machine
升降液压系统和装载机
HUA LONGXIN (author) / FAN WUDE (author) / LI ZEHUA (author) / WANG YUN (author) / LI DAYOU (author) / LUO WEIFENG (author)
2023-03-28
Patent
Electronic Resource
Chinese
Locking structure, hydraulic lifting column machine core and hydraulic lifting column
| European Patent Office | 2024