One-button type hydraulic lifting system of dumper
The utility model provides a one-button type hydraulic lifting system of a dumper, which comprises a lifting oil cylinder, an oil pump group, a main control valve and a pilot valve for controlling lifting air intake and falling air exhaust, a P port of the main control valve is connected with an oil...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
30.06.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The utility model provides a one-button type hydraulic lifting system of a dumper, which comprises a lifting oil cylinder, an oil pump group, a main control valve and a pilot valve for controlling lifting air intake and falling air exhaust, a P port of the main control valve is connected with an oil supply port of the oil pump group through a first oil supply pipe, and an oil inlet of the oil pump group is communicated with a hydraulic oil tank through an oil inlet pipe; a port A of the main control valve is connected with the lifting oil cylinder through a second oil supply pipe, a cavity a1 of the main control valve is connected to a lifting air guide port of the pilot valve through a first pilot pipeline, a limiting valve is further arranged on the first pilot pipeline, and a pressure sensor is arranged on the portion, between the limiting valve and the lifting air guide port, of the first pilot pipeline. And a b1 cavity of the main control valve is connected to a falling air guide port of the pilot valve |
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Bibliography: | Application Number: CN202320339577U |