The invention belongs to the technical field of aviation, and particularly relates to a hydraulic mechanical reversing valve. The valve shell is provided with a cylindrical center cavity. The wall surface of the central cavity is provided with a port A and a port B connected with the outside; the valve core is sleeved in the central cavity, the outer cylindrical surface of the valve core and the wall surface of the central cavity form a first cavity, a second cavity and a third cavity, and the valve core is provided with a port C and a port D which are connected with the outside; the opening C is communicated with the first cavity and the third cavity; when the relative rotation angle between the valve shell and the valve element is smaller than the preset angle, the port A communicates with the first cavity; the opening B is communicated with the second cavity; when the relative rotation angle between the valve shell and the valve element is larger than the preset angle, the A opening communicates with the second cavity; the opening B is communicated with the third cavity; when the relative rotation angle of the valve shell and the valve element is equal to the preset angle, the port A is blocked by the interface of the first cavity and the second cavity, and the port B is blocked by the interface of the second cavity and the third cavity. And the switching of mechanical oil ways is realized through angle conversion.
本申请属于航空技术领域,特别涉及一种液压机械换向阀,阀壳与阀芯;阀壳具有圆柱形状的中心腔;中心腔的壁面具有连接外界的A口和B口;阀芯套在所述中心腔中,阀芯的外柱面与中心腔的壁面形成第一腔、第二腔以及第三腔,阀芯设置有连接外界的C口和D口;C口与第一腔以及第三腔联通;阀壳与阀芯相对旋转小于预设角度时,A口与第一腔联通;B口与第二腔联通;阀壳与阀芯相对旋转大于预设角度时,A口与第二腔联通;B口与第三腔联通;阀壳与阀芯相对旋转等于预设角度时,A口由第一腔与第二腔的分界面封堵,B口被第二腔与第三腔的分界面封堵。通过角度转变实现机械油路的切换。
Hydraulic mechanical reversing valve
一种液压机械换向阀
2023-01-24
Patent
Electronic Resource
Chinese
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