Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bulldozer scraper knife anti-drag control system and bulldozer
The invention discloses a bulldozer scraper knife drag reduction control system which comprises a main oil supply unit, a working hydraulic switching unit, a pilot oil supply unit, a pilot hydraulic unit, a drag reduction hydraulic unit, an electric control unit and a hydraulic execution unit. The pilot hydraulic unit comprises a pilot valve set, the pilot oil supply unit is connected with the pilot valve set, a first port of the pilot valve set is connected with the working hydraulic switching unit, and the resistance reduction hydraulic unit comprises an electric control on-off valve connected with the pilot valve set in parallel. A second port of the pilot valve set and an outlet of the electric control on-off valve are connected with the working hydraulic switching unit through the shuttle valve, and the electric control unit comprises a control module electrically connected with the electric control on-off valve and a sensing element electrically connected with the control module. The invention further discloses a bulldozer. According to the bulldozer scraper knife resistance reduction control system, the scraper knife can be lifted, the downward cutting resistance of the scraper knife is adjusted, and the operation intensity is reduced.
本发明公开一种推土机铲刀减阻控制系统，包括主供油单元、工作液压切换单元、先导供油单元、先导液压单元、减阻液压单元、电控单元和液压执行单元，主供油单元经由工作液压切换单元与液压执行单元液路连接，先导液压单元包括先导阀组，先导供油单元与先导阀组连接，先导阀组的第一端口与工作液压切换单元连接，减阻液压单元包括与先导阀组并联的电控通断阀，先导阀组的第二端口以及电控通断阀的出口经由梭阀与工作液压切换单元连接，电控单元包括与电控通断阀电连接的控制模块以及与该控制模块电连接的传感元件。本发明还公开一种推土机。本发明的推土机铲刀减阻控制系统能够提升铲刀，调节铲刀下切时阻力，降低作业强度。
Bulldozer scraper knife anti-drag control system and bulldozer
The invention discloses a bulldozer scraper knife drag reduction control system which comprises a main oil supply unit, a working hydraulic switching unit, a pilot oil supply unit, a pilot hydraulic unit, a drag reduction hydraulic unit, an electric control unit and a hydraulic execution unit. The pilot hydraulic unit comprises a pilot valve set, the pilot oil supply unit is connected with the pilot valve set, a first port of the pilot valve set is connected with the working hydraulic switching unit, and the resistance reduction hydraulic unit comprises an electric control on-off valve connected with the pilot valve set in parallel. A second port of the pilot valve set and an outlet of the electric control on-off valve are connected with the working hydraulic switching unit through the shuttle valve, and the electric control unit comprises a control module electrically connected with the electric control on-off valve and a sensing element electrically connected with the control module. The invention further discloses a bulldozer. According to the bulldozer scraper knife resistance reduction control system, the scraper knife can be lifted, the downward cutting resistance of the scraper knife is adjusted, and the operation intensity is reduced.
本发明公开一种推土机铲刀减阻控制系统，包括主供油单元、工作液压切换单元、先导供油单元、先导液压单元、减阻液压单元、电控单元和液压执行单元，主供油单元经由工作液压切换单元与液压执行单元液路连接，先导液压单元包括先导阀组，先导供油单元与先导阀组连接，先导阀组的第一端口与工作液压切换单元连接，减阻液压单元包括与先导阀组并联的电控通断阀，先导阀组的第二端口以及电控通断阀的出口经由梭阀与工作液压切换单元连接，电控单元包括与电控通断阀电连接的控制模块以及与该控制模块电连接的传感元件。本发明还公开一种推土机。本发明的推土机铲刀减阻控制系统能够提升铲刀，调节铲刀下切时阻力，降低作业强度。
Bulldozer scraper knife anti-drag control system and bulldozer
推土机铲刀减阻控制系统及推土机
XIN YU (Autor:in) / CHEN GENG (Autor:in) / ZHANG XIQI (Autor:in) / YANG JUAN (Autor:in) / ZHAO YANLI (Autor:in)
31.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
Novel scraper knife supporting structure for bulldozer
| Europäisches Patentamt | 2021
Bulldozer scraper knife assembly and using method thereof
| Europäisches Patentamt | 2024