Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION-MACHINERY HYDRAULIC CIRCUIT
In a construction-machinery hydraulic circuit, left and right directional switching valves each have: a pump port that is connected to a pump; a first compensation port that is connected to an upstream side of a corresponding pressure compensation valve; a second compensation port that is connected to a downstream side of the corresponding pressure compensation valve; a pair of supply and discharge ports that are connected to a corresponding traveling motor; and a communication port. The communication ports of the left and right directional switching valves are connected to each other via a communication line. When a travel controller is operated to move a spool from a neutral position, the pump port is communicated with the first compensation port, and the second compensation port is communicated with one of the supply and discharge ports and with the communication port. The directional switching valves are each configured such that the degree of communication between the second compensation port and the communication port is increased as the amount of movement of the spool from the neutral position becomes larger.
工程机械的油压回路中，左右的方向切换阀分别具有：与泵连接的泵端口、与对应的压力补偿阀的上游侧连接的第一补偿端口、与对应的压力补偿阀的下游侧连接的第二补偿端口、与对应的行驶马达连接的一对给排端口以及连通端口。左右的方向切换阀的连通端口通过连通管线相互连接。行驶操作器被操作而阀芯从中立位置移动时，泵端口与第一补偿端口连通，且第二补偿端口与给排端口的一方及连通端口连通。方向切换阀构成为阀芯从中立位置的移动量越大则第二补偿端口与连通端口的连通程度越大。
CONSTRUCTION-MACHINERY HYDRAULIC CIRCUIT
In a construction-machinery hydraulic circuit, left and right directional switching valves each have: a pump port that is connected to a pump; a first compensation port that is connected to an upstream side of a corresponding pressure compensation valve; a second compensation port that is connected to a downstream side of the corresponding pressure compensation valve; a pair of supply and discharge ports that are connected to a corresponding traveling motor; and a communication port. The communication ports of the left and right directional switching valves are connected to each other via a communication line. When a travel controller is operated to move a spool from a neutral position, the pump port is communicated with the first compensation port, and the second compensation port is communicated with one of the supply and discharge ports and with the communication port. The directional switching valves are each configured such that the degree of communication between the second compensation port and the communication port is increased as the amount of movement of the spool from the neutral position becomes larger.
工程机械的油压回路中，左右的方向切换阀分别具有：与泵连接的泵端口、与对应的压力补偿阀的上游侧连接的第一补偿端口、与对应的压力补偿阀的下游侧连接的第二补偿端口、与对应的行驶马达连接的一对给排端口以及连通端口。左右的方向切换阀的连通端口通过连通管线相互连接。行驶操作器被操作而阀芯从中立位置移动时，泵端口与第一补偿端口连通，且第二补偿端口与给排端口的一方及连通端口连通。方向切换阀构成为阀芯从中立位置的移动量越大则第二补偿端口与连通端口的连通程度越大。
CONSTRUCTION-MACHINERY HYDRAULIC CIRCUIT
工程机械的油压回路
AOKI SEIJI (Autor:in) / HIGASHIDE YOSHIYUKI (Autor:in) / OHIRA MASAHIRO (Autor:in) / NAKASHIMA HIDEKI (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch