The invention belongs to the technical field of hydraulic valves, and discloses a pressure compensation valve and a hydraulic control system. The pressure compensation valve comprises a valve sleeve, a valve seat and a valve element. An oil inlet hole, an oil return hole and a feedback oil hole are formed in the valve sleeve, a connecting corner is arranged on the inner wall of the valve sleeve, and the connecting corner is located between the oil return hole and the feedback oil hole; the valve seat is connected with the valve sleeve; the valve element is slidably arranged in the valve sleeve in the axial direction so as to block or open the oil return hole, the valve element is provided with a first valve element section and a second valve element section, the first valve element section and the valve seat form a first cavity, an oil passing gap is formed between the first valve element section and the valve seat, and the first cavity and the feedback oil hole are communicated through the oil passing gap; a sealing part is arranged between the first valve element section and the second valve element section and can abut against the connecting corner so as to block a gap, between the oil return hole and the feedback oil hole, between the valve sleeve and the valve element. The pressure compensation valve is good in sealing effect, and hydraulic oil leakage is effectively avoided.
本发明属于液压阀技术领域,公开了一种压力补偿阀及液压控制系统。压力补偿阀包括阀套、阀座及阀芯。阀套上具有进油孔、回油孔、反馈油孔,阀套的内壁设置有连接转角,连接转角位于回油孔和反馈油孔之间;阀座与阀套连接;阀芯沿轴向可滑动设置于阀套内,以封堵或打开回油孔,阀芯具有第一阀芯段和第二阀芯段,第一阀芯段与阀座形成第一腔室,第一阀芯段与阀座之间具有过油间隙,过油间隙连通第一腔室与反馈油孔;第一阀芯段与第二阀芯段的之间设置有密封部,密封部能够抵接至连接转角,以封堵介于回油孔和反馈油孔之间的阀套和阀芯的间隙。该压力补偿阀的密封效果好,有效避免了液压油泄漏。
Pressure compensation valve and hydraulic control system
一种压力补偿阀及液压控制系统
2025-01-24
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / F16K VALVES , Ventile |
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