Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Boom control circuit for construction machine
In either one of the plastering work and the normal work, the same operability is performed under the weight of the front working equipment (4), when the dipper (7) is lowered in the air and after contacting the ground, the operability is maintained as it is when the plastering work is performed, and the operation is performed at the same time when the dipper (7) is lowered in the air and after contacting the ground. When normal operation is performed, pressurized hydraulic fluid is supplied from the hydraulic pump (11), and the hydraulic pump (11) operates at the same time. The solution is that the descending control during the plastering working mode takes place in the valve channel state in a first region (D1), in which the descending control is carried out under the weight of the preceding working equipment (4) without supplying hydraulic fluid from the hydraulic pump (11), regardless of whether the bucket (7) is in contact with the ground or not, the descending control is carried out in the first region (D1) without supplying hydraulic fluid from the hydraulic pump (11). Drop control during the normal operating mode is performed in a first region in a non-ground contact state in a valve passage state and in a second region (D2) in a ground contact state in which hydraulic fluid can be supplied from a hydraulic pump (11).
在抹灰工作和正常工作中的任一项中，在前工作设备(4)的自重下以相同的可操作性进行工作，当铲斗(7)在空气中下降时，并且在接触地面之后，以在进行抹灰工作时保持原样的可操作性进行工作，并且在进行正常工作时在从液压泵(11)供应加压液压流体的同时进行工作。解决方案：抹灰工作模式期间的下降控制在阀通道状态下在第一区域(D1)中进行，在该第一区域中，在前工作设备(4)的自重下进行下降控制而不从液压泵(11)供应液压流体，无论铲斗(7)是否与地面接触，正常工作模式期间的下降控制在阀通道状态下在非地面接触状态下的第一区域和在地面接触状态下的能够从液压泵(11)供应液压流体的第二区域(D2)执行。
Boom control circuit for construction machine
In either one of the plastering work and the normal work, the same operability is performed under the weight of the front working equipment (4), when the dipper (7) is lowered in the air and after contacting the ground, the operability is maintained as it is when the plastering work is performed, and the operation is performed at the same time when the dipper (7) is lowered in the air and after contacting the ground. When normal operation is performed, pressurized hydraulic fluid is supplied from the hydraulic pump (11), and the hydraulic pump (11) operates at the same time. The solution is that the descending control during the plastering working mode takes place in the valve channel state in a first region (D1), in which the descending control is carried out under the weight of the preceding working equipment (4) without supplying hydraulic fluid from the hydraulic pump (11), regardless of whether the bucket (7) is in contact with the ground or not, the descending control is carried out in the first region (D1) without supplying hydraulic fluid from the hydraulic pump (11). Drop control during the normal operating mode is performed in a first region in a non-ground contact state in a valve passage state and in a second region (D2) in a ground contact state in which hydraulic fluid can be supplied from a hydraulic pump (11).
在抹灰工作和正常工作中的任一项中，在前工作设备(4)的自重下以相同的可操作性进行工作，当铲斗(7)在空气中下降时，并且在接触地面之后，以在进行抹灰工作时保持原样的可操作性进行工作，并且在进行正常工作时在从液压泵(11)供应加压液压流体的同时进行工作。解决方案：抹灰工作模式期间的下降控制在阀通道状态下在第一区域(D1)中进行，在该第一区域中，在前工作设备(4)的自重下进行下降控制而不从液压泵(11)供应液压流体，无论铲斗(7)是否与地面接触，正常工作模式期间的下降控制在阀通道状态下在非地面接触状态下的第一区域和在地面接触状态下的能够从液压泵(11)供应液压流体的第二区域(D2)执行。
Boom control circuit for construction machine
用于施工机器的动臂控制电路
NAKAJIMA HIDEKI (Autor:in) / KIYASU KOICHI (Autor:in)
30.12.2022
Patent
Elektronische Ressource
Chinesisch
BOOM CYLINDER CONTROL CIRCUIT FOR CONSTRUCTION MACHINE
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