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A platform for research: civil engineering, architecture and urbanism
Oil drainage method for reducing inter-plate oil leakage risk and plate type multi-way valve
The invention discloses an oil drainage method for reducing inter-plate oil leakage risk, which belongs to the technical field of hydraulic valves, and comprises the following steps: S1, arranging an inter-plate oil drainage channel to guide inter-plate flow back to a main valve oil return port; s2, the oil return flow is introduced into the pilot stage of the middle-position unloading valve through a one-way valve arranged between the inter-sheet oil drainage channel and the oil return opening; and S3, when the oil return pressure is lower than the set pressure of the one-way valve spring, the unloading valve plays a role in middle-position unloading and flow regulation, and when the inter-plate pressure is abnormal and larger than the set pressure of the one-way valve spring, the flow of the oil return port enters the pilot stage of the unloading valve through the one-way valve, so that the unloading valve element is completely reversed, the main valve oil inlet P is communicated with the oil return port, and the pressure of the main valve oil inlet P is instantaneously zero. And one-key unloading is realized. The multi-way valve has the advantages that the inter-plate pressure is reduced, and inter-plate oil leakage caused by abnormal increase of the inter-plate pressure of the plate type multi-way valve is avoided.
本发明公开了一种降低片间漏油风险的泄油方法，属于液压阀技术领域，包括以下步骤：S1、设置片间泄油通道将片间流量引回主阀回油口；S2、回油流量通过设置在片间泄油通道及回油口之间的单向阀引入中位卸荷阀先导级；S3、当回油压力低于单向阀弹簧设定压力时，卸荷阀起中位卸荷及流量调节作用，当片间压力异常，大于单向阀弹簧设定压力时，回油口流量通过单向阀进入卸荷阀先导级使卸荷阀芯完全换向，主阀进油P口和回油口相通，主阀进油P口压力瞬时为0，实现一键卸荷。本发明的优点在于：降低片间压力，避免片式多路阀因片间压力异常增高而导致的片间漏油。
Oil drainage method for reducing inter-plate oil leakage risk and plate type multi-way valve
The invention discloses an oil drainage method for reducing inter-plate oil leakage risk, which belongs to the technical field of hydraulic valves, and comprises the following steps: S1, arranging an inter-plate oil drainage channel to guide inter-plate flow back to a main valve oil return port; s2, the oil return flow is introduced into the pilot stage of the middle-position unloading valve through a one-way valve arranged between the inter-sheet oil drainage channel and the oil return opening; and S3, when the oil return pressure is lower than the set pressure of the one-way valve spring, the unloading valve plays a role in middle-position unloading and flow regulation, and when the inter-plate pressure is abnormal and larger than the set pressure of the one-way valve spring, the flow of the oil return port enters the pilot stage of the unloading valve through the one-way valve, so that the unloading valve element is completely reversed, the main valve oil inlet P is communicated with the oil return port, and the pressure of the main valve oil inlet P is instantaneously zero. And one-key unloading is realized. The multi-way valve has the advantages that the inter-plate pressure is reduced, and inter-plate oil leakage caused by abnormal increase of the inter-plate pressure of the plate type multi-way valve is avoided.
本发明公开了一种降低片间漏油风险的泄油方法，属于液压阀技术领域，包括以下步骤：S1、设置片间泄油通道将片间流量引回主阀回油口；S2、回油流量通过设置在片间泄油通道及回油口之间的单向阀引入中位卸荷阀先导级；S3、当回油压力低于单向阀弹簧设定压力时，卸荷阀起中位卸荷及流量调节作用，当片间压力异常，大于单向阀弹簧设定压力时，回油口流量通过单向阀进入卸荷阀先导级使卸荷阀芯完全换向，主阀进油P口和回油口相通，主阀进油P口压力瞬时为0，实现一键卸荷。本发明的优点在于：降低片间压力，避免片式多路阀因片间压力异常增高而导致的片间漏油。
Oil drainage method for reducing inter-plate oil leakage risk and plate type multi-way valve
一种降低片间漏油风险的泄油方法及片式多路阀
LIU WANLIANG (author) / JING JUNQING (author) / QI ZHENHONG (author) / TANG JIANFENG (author)
2024-01-19
Patent
Electronic Resource
Chinese
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