一种梭阀组件及多路敏感阀

Abstract

本公开提供一种梭阀组件及多路敏感阀。该梭阀组件包括带阀腔的阀体，以及阀腔内沿阀体轴向分布的第一、第二阀座。第一阀座设有第一油路，在其端面形成第一密封腔；第二阀座设有第二油路，在其相对端面形成第二密封腔。两个密封腔之间设有密封球体，可在两密封腔之间运动并密封其一。密封球体密封第一密封腔时的接触处为第一位置，密封第二密封腔时的接触处为第二位置，定义第一位置到第二位置的距离为D1；两阀座相对端面的间距为D2；球体上对应两密封位置的部分在直径方向上的尺寸为D3。其满足几何约束关系：D1‑D2＞D3，且D2≥0、D1＞0、D3＞0。本公开有效解决了传统梭阀因阀座脱落导致压力传导失效的问题。

Claims

1. A shuttle valve assembly, characterized by, include: A valve body (1) having a valve cavity, and a first valve seat (2) and a second valve seat (3) sequentially distributed along the axial direction of the valve body (1) in the valve cavity; wherein, a first oil passage (21) is provided in the first valve seat (2), and the first oil passage (21) forms a first sealing cavity (23) on the first end face (22) of the first valve seat (2) facing the second valve seat (3); a second oil passage (31) is provided in the second valve seat (3), and the second oil passage (31) forms a second sealing cavity (33) on the second end face (32) of the second valve seat (3) facing the first valve seat (2); The shuttle valve assembly also includes a sealing ball (4) located in the valve cavity, the sealing ball (4) being located between the first sealing cavity (23) and the second sealing cavity (33), and being configured to move to seal the first sealing cavity (23) or the second sealing cavity (33). The position on the first sealing cavity (23) that mates with the sealing ball (4) is recorded as the first position, and the position on the second sealing cavity (33) that mates with the sealing ball (4) is recorded as the second position; when in the first position, the part of the sealing ball (4) that mates with the first sealing cavity (23) is recorded as the first part, and when in the second position, the part of the sealing ball (4) that mates with the second sealing cavity (33) is recorded as the second part; The distance between the first position and the second position is denoted as D1, the distance between the first end face (22) and the second end face (32) is denoted as D2, and the dimension of the first part to the second part on the sealing sphere (4) in the diameter direction of the sealing sphere (4) is D3, wherein D1, D2, and D3 satisfy the following relationship: D1-D2>D3, and D2≥0, D1>0, D3>0.

2. The shuttle valve assembly of claim 1, wherein, The valve cavity is provided with a first thread, and the first valve seat (2) is configured to be installed in the valve cavity through the first thread; the second valve seat (3) is configured to be arranged coaxially with the first valve seat (2).

3. The shuttle valve assembly of claim 2, wherein, The valve cavity is provided with a second thread, and the second valve seat (3) is configured to be installed in the valve cavity through the second thread.

4. The shuttle valve assembly of claim 1, wherein, A liquid passage chamber (11) is formed between the inner wall of the valve cavity and the outer wall of the second valve seat (3), and a first communication port (12) connected to the liquid passage chamber (11) is provided on the valve body (1).

5. The shuttle valve assembly of claim 4, wherein, A guide groove (6) is provided on the outer wall of the second valve seat (3), and the guide groove (6) is configured to form the liquid passage chamber (11) with the inner wall of the valve cavity.

6. The shuttle valve assembly of claim 4, wherein, The first end face (22) and / or the second end face (32) are configured to have an oil passage (5), and the hydraulic oil in the first oil passage (21) or the second oil passage (31) is configured to flow into the liquid passage chamber (11) through the oil passage (5).

7. The shuttle valve assembly of claim 6, wherein, Multiple oil passages (5) are provided, and the multiple oil passages (5) are configured to be distributed circumferentially along the first end face (22) and / or the second end face (32).

8. The shuttle valve assembly according to claim 4, characterized in that, The second valve seat (3) has an opening (25) on its side wall that communicates with the second oil passage (31); the valve body (1) is provided with an oil passage that communicates with the opening (25), and the oil passage forms a second communication port (13) on the side wall of the valve body (1).

9. A multipath sensitive valve characterized by, Includes a shuttle valve assembly according to any one of claims 1 to 8, wherein the shuttle valve assembly is provided with at least two, the at least two shuttle valve assemblies are configured to be connected in series, and in two adjacent shuttle valve assemblies, the second communication port (13) of one shuttle valve assembly is configured to communicate with the first communication port (12) of the other shuttle valve assembly.

10. The multiple sensitive valve according to claim 9, wherein A main valve chamber is provided on the valve body (1), and the main valve chamber is configured to communicate with the first oil passage (21).

Images