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A platform for research: civil engineering, architecture and urbanism
Control mechanism of mechanical operation type excavator working device and excavator
The invention provides a control mechanism of a mechanical operation type excavator working device and an excavator. The control mechanism comprises a hydraulic oil tank; the multi-way valve group comprises a left multi-way valve, a right multi-way valve and a walking multi-way valve; the balance valve is provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet, and the second oil outlet is communicated with the left multi-way valve, the right multi-way valve and the walking multi-way valve through oil ways; an oil way between the second oil inlet and the second oil outlet is conducted when the pressure of the oil way for communicating the first oil inlet to the first oil outlet is larger than a preset value; the rotary valve is provided with a third oil inlet and an oil return port, and the oil return port is communicated to the hydraulic oil tank through an oil way; the oil inlet end of the main pump communicates with the hydraulic oil tank, and the oil outlet end of the main pump communicates with the first oil inlet, the second oil inlet and the third oil inlet through oil ways correspondingly. According to the control mechanism provided by the invention, when the safety rod is in the locking position, an oil way of the working device can be thoroughly cut off, and micro-action is avoided.
本发明提供一种机械操作式挖掘机工作装置的控制机构及挖掘机，控制机构包括：液压油箱；多路阀组包括左侧多路阀、右侧多路阀和行走多路阀；平衡阀具有第一进油口、第二进油口、第一出油口和第二出油口，第二出油口分别油路连通至左侧多路阀、右侧多路阀和行走多路阀；第一进油口油路连通至第一出油口，第二进油口与第二出油口之间的油路在第一进油口连通至第一出油口的油路压力大于预设值时导通；转阀具有第三进油口和回油口，回油口油路连通至液压油箱；主泵的进油端连通至液压油箱，主泵的出油端分别油路连通至第一进油口、第二进油口和第三进油口。根据本发明提供的控制机构，可以使安全杆在锁定位置时，彻底切断工作装置油路，避免有微动作。
Control mechanism of mechanical operation type excavator working device and excavator
The invention provides a control mechanism of a mechanical operation type excavator working device and an excavator. The control mechanism comprises a hydraulic oil tank; the multi-way valve group comprises a left multi-way valve, a right multi-way valve and a walking multi-way valve; the balance valve is provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet, and the second oil outlet is communicated with the left multi-way valve, the right multi-way valve and the walking multi-way valve through oil ways; an oil way between the second oil inlet and the second oil outlet is conducted when the pressure of the oil way for communicating the first oil inlet to the first oil outlet is larger than a preset value; the rotary valve is provided with a third oil inlet and an oil return port, and the oil return port is communicated to the hydraulic oil tank through an oil way; the oil inlet end of the main pump communicates with the hydraulic oil tank, and the oil outlet end of the main pump communicates with the first oil inlet, the second oil inlet and the third oil inlet through oil ways correspondingly. According to the control mechanism provided by the invention, when the safety rod is in the locking position, an oil way of the working device can be thoroughly cut off, and micro-action is avoided.
本发明提供一种机械操作式挖掘机工作装置的控制机构及挖掘机，控制机构包括：液压油箱；多路阀组包括左侧多路阀、右侧多路阀和行走多路阀；平衡阀具有第一进油口、第二进油口、第一出油口和第二出油口，第二出油口分别油路连通至左侧多路阀、右侧多路阀和行走多路阀；第一进油口油路连通至第一出油口，第二进油口与第二出油口之间的油路在第一进油口连通至第一出油口的油路压力大于预设值时导通；转阀具有第三进油口和回油口，回油口油路连通至液压油箱；主泵的进油端连通至液压油箱，主泵的出油端分别油路连通至第一进油口、第二进油口和第三进油口。根据本发明提供的控制机构，可以使安全杆在锁定位置时，彻底切断工作装置油路，避免有微动作。
Control mechanism of mechanical operation type excavator working device and excavator
机械操作式挖掘机工作装置的控制机构及挖掘机
HE GUANGMIN (author) / ZANG JIPENG (author) / FANG SHUQING (author) / LIU RONGBIN (author) / BIAN SHUCHI (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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