High-low pressure quick-change control system suitable for tiny excavation

The invention discloses a high-low pressure quick-change control system suitable for micro excavators, which belongs to the technical field of micro excavators, and comprises a main pump and a manual control piece, the output end of the main pump is connected in parallel with a filter valve group an...

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Bibliographic Details
Main Authors LIU ZHIJUN, WANG ZHUOFENG, XIAO JIE, HU XIAOWEI, HAN DONGHU, XIAO YUNBO
Format Patent
LanguageChinese
English
Published 28.05.2024
Subjects
DREDGING
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
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Summary:The invention discloses a high-low pressure quick-change control system suitable for micro excavators, which belongs to the technical field of micro excavators, and comprises a main pump and a manual control piece, the output end of the main pump is connected in parallel with a filter valve group and a main valve through a hydraulic pipeline; the output end of the filter valve set is sequentially connected with a switching valve, a quick-change electromagnetic valve and a quick-change device through an oil inlet pipe I. The end, away from the main pump, of the main valve is connected to the input end of the switching valve through an oil inlet pipe II, the other end of the quick-change device is connected with the quick-change electromagnetic valve through an oil return pipe and then flows back to the oil tank, and the manual control piece is connected with the switching valve. And the through position of the switching valve is controlled. The quick-change device has the advantage that the high-pressure quick
Bibliography:Application Number: CN202410257812