The invention discloses a flow division control hydraulic system of a constant delivery pump, a control method and a crane, an oil outlet of an oil tank is connected with an oil inlet of the constant delivery pump, an oil outlet of the constant delivery pump is connected with an oil inlet of a central rotary body, and the oil outlet of the constant delivery pump is further connected with an oil inlet A of a flow division valve; a pressure sensing oil port p1 of the constant displacement pump is connected with a non-spring cavity port a of the flow dividing valve, an oil outlet B of the flow dividing valve is connected with an oil return port of the oil tank, an oil outlet B of the center rotary body is connected with an oil inlet of the main valve, an oil outlet a of the center rotary body is connected with a spring cavity port b of the flow dividing valve, and an oil outlet b of the center rotary body is connected with an oil return port of the oil tank. A pressure sensing oil port p2 of the main valve is connected with a feedback oil port b of the center rotary body, an oil outlet of the main valve is connected with an oil inlet of the executing mechanism, and an oil outlet of the executing mechanism is connected with an oil return port of the oil tank. The split-flow noise problem of the multi-way valve is solved, the use perception of a user is improved, pressure loss is reduced, and energy saving is achieved.
本发明公开了一种定量泵分流控制液压系统、控制方法及起重机,所述油箱的出油口与定量泵进油口相连接,所述定量泵的出油口与中心回转体的进油口相连接,定量泵的出油口还与分流阀的进油口A连接,所述定量泵的压力传感油口p1与分流阀的非弹簧腔a口相连接,所述分流阀的出油口B与油箱的回油口相连接,所述中心回转体的出油口B与主阀的进油口相连接,所述中心回转体的出油口a与分流阀的弹簧腔b口相连接,所述主阀的压力传感油口p2与中心回转体的反馈油口b相连接,所述主阀的出油口与执行机构的进油口相连接,所述执行机构的出油口与油箱的回油口相连接。本发明解决多路阀分流噪声问题,提升用户使用感知,并降低压损,实现节能。
Flow division control hydraulic system of constant delivery pump, control method and crane
一种定量泵分流控制液压系统、控制方法及起重机
2024-02-20
Patent
Electronic Resource
Chinese
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