Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a brake control system and a brake control method for a closed slewing mechanism of an excavator. The control system comprises a slewing closed pump, a slewing brake mechanism, an electromagnetic valve, a slewing operation handle and a controller. The rotary closed pump is in fluid connection with the rotary mechanism; the rotary braking mechanism is connected to the rotary mechanism; the electromagnetic valve is in fluid connection with the rotary closed pump and the rotary brake mechanism; the controller is configured to control the electromagnetic valve to be opened according to a received rotation operation signal of the rotation operation handle so as to relieve braking control of the rotation braking mechanism on the rotation mechanism; and when the rotation operation signal of the rotation operation handle is not received within the first preset time period, the electromagnetic valve is controlled to be closed so as to start braking control of the rotation braking mechanism on the rotation mechanism. Therefore, the control system can actively control the braking operation of the slewing mechanism, and compared with the prior art, the energy loss of the compensation flow of the pump can be reduced, the braking reliability is improved, and meanwhile the risk that the motor is damaged due to stress can be reduced.
本发明公开了一种挖掘机闭式回转机构制动控制系统和控制方法，该控制系统包括：回转闭式泵、回转制动机构、电磁阀、回转操作手柄和控制器。回转闭式泵与回转机构流体连接；回转制动机构连接至回转机构；电磁阀与回转闭式泵和回转制动机构流体连接；控制器配置为：根据接收到的回转操作手柄的回转操作信号，控制电磁阀开启，以解除回转制动机构对回转机构的制动控制；在第一预定时间段内没有接收到回转操作手柄的回转操作信号时，控制电磁阀关闭，以启动回转制动机构对回转机构的制动控制。由此，该控制系统能够主动控制回转机构的制动操作，相比现有技术，能够降低泵的补偿流量的能量损失，提高制动的可靠性，同时能够减少马达受力损坏的风险。
The invention discloses a brake control system and a brake control method for a closed slewing mechanism of an excavator. The control system comprises a slewing closed pump, a slewing brake mechanism, an electromagnetic valve, a slewing operation handle and a controller. The rotary closed pump is in fluid connection with the rotary mechanism; the rotary braking mechanism is connected to the rotary mechanism; the electromagnetic valve is in fluid connection with the rotary closed pump and the rotary brake mechanism; the controller is configured to control the electromagnetic valve to be opened according to a received rotation operation signal of the rotation operation handle so as to relieve braking control of the rotation braking mechanism on the rotation mechanism; and when the rotation operation signal of the rotation operation handle is not received within the first preset time period, the electromagnetic valve is controlled to be closed so as to start braking control of the rotation braking mechanism on the rotation mechanism. Therefore, the control system can actively control the braking operation of the slewing mechanism, and compared with the prior art, the energy loss of the compensation flow of the pump can be reduced, the braking reliability is improved, and meanwhile the risk that the motor is damaged due to stress can be reduced.
本发明公开了一种挖掘机闭式回转机构制动控制系统和控制方法，该控制系统包括：回转闭式泵、回转制动机构、电磁阀、回转操作手柄和控制器。回转闭式泵与回转机构流体连接；回转制动机构连接至回转机构；电磁阀与回转闭式泵和回转制动机构流体连接；控制器配置为：根据接收到的回转操作手柄的回转操作信号，控制电磁阀开启，以解除回转制动机构对回转机构的制动控制；在第一预定时间段内没有接收到回转操作手柄的回转操作信号时，控制电磁阀关闭，以启动回转制动机构对回转机构的制动控制。由此，该控制系统能够主动控制回转机构的制动操作，相比现有技术，能够降低泵的补偿流量的能量损失，提高制动的可靠性，同时能够减少马达受力损坏的风险。
Brake control system and control method for closed slewing mechanism of excavator
一种挖掘机闭式回转机构制动控制系统和控制方法
06.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
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