High-speed rail valve group assembly

Abstract

A high-speed rail valve group assembly. The high-speed rail valve group assembly is mounted on a valve seat, and comprises: a valve panel (1); two symmetrical valve plate groups, arranged on the valve panel, each valve plate group comprising two valve plates (2), and a limiter (20) detachably mounted on each valve plate. The valve plate and the valve seat are detachably mounted, and the valve plate, the limiter and the valve seat are assembled together by means of a positioning clamp. The present high-speed rail valve group assembly is intended to replace an inlet valve group. During installation, the valve plate is attached to the valve seat, the valve plate is covered by the limiter, and the valve plate evenly covers the valve seat. After the limiter is assembled, the valve plate and the valve seat are inspected for leakage. By using the positioning clamp, the assembly positions of the valve plate, the limiter and the valve seat are ensured, with a deviation requirement ≤0.08μm. During leakage inspection of the valve plate and the valve seat, if there is no oil on a sealing surface of a valve hole port, a leakage amount is guaranteed to be ≤100ml / min at 1.0MPa.

Description

High-speed rail valve group assembly Technical Field

[0001] The utility model relates to a high-speed railway valve group assembly. Background Art

[0002] The existing high-speed rail valve group is composed of a valve plate, a valve disc, a limiter, etc. After assembly, the valve disc is fitted with the valve seat, and the limiter is covered on the valve disc. The valve disc is evenly covered on the valve seat, but the existing high-speed rail valve groups are mostly imported. Utility Model Content

[0003] In order to save costs, the utility model provides a self-made high-speed rail valve group assembly to replace the imported valve group to save costs.

[0004] To achieve the above-mentioned purpose, the utility model provides a high-speed rail valve group assembly, which is installed on a valve seat and includes a valve plate, on which are provided two symmetrical valve plate groups, each valve plate group including two valve plates, and a limiter detachably installed on the valve plate; the valve plate and the valve seat are detachably installed; the valve plate, the limiter and the valve seat are assembled into one by a positioning fixture.

[0005] Preferably, a groove is provided in the middle of the valve plate, and three vertically arranged first through holes are provided in the groove.

[0006] Preferably, second through holes are provided at the four corners of the valve plate.

[0007] Preferably, the position deviation between the valve plate assembly and the valve seat is ≤0.08 μm.

[0008] Preferably, the valve plate is coated with a nickel layer.

[0009] The high-speed railway valve group assembly in the present invention is intended to replace imported valve groups. During installation, the valve disc is fitted with the valve seat, and the valve disc is covered with a limiter, and the valve disc is evenly covered on the valve seat; after the limiter is assembled, the valve disc and the valve seat are checked for leakage; the assembly position of the valve disc, the limiter and the valve seat is ensured by a positioning fixture, and the deviation is required to be ≤0.08μm; in the leakage inspection of the valve disc and the valve seat, under the condition that there is no oil on the sealing surface of the valve hole port, the leakage amount is guaranteed to be ≤100ml / min under 1.0MPa. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG1 is a schematic diagram of the overall structure of the present utility model. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments. However, the specific implementation methods and embodiments described below are only for illustrative purposes and are not intended to limit the present invention.

[0012] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0013] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0014] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0015] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0016] Referring to Figure 1, the high-speed rail valve group assembly in this embodiment is installed on the valve seat, which includes a valve plate 1. The valve plate 1 is provided with two symmetrical valve plate groups, each valve plate group includes two valve plates 2, and a limiter 20 is detachably installed on the valve plate 2; the valve plate 2 and the valve seat are detachably installed; the valve plate 2, the limiter 20 and the valve seat are assembled into one by a positioning fixture.

[0017] Furthermore, a groove 3 is provided in the middle of the valve plate 1 , and three vertically arranged first through holes 4 are provided in the groove 3 .

[0018] Furthermore, second through holes 5 are provided at the four corners of the valve plate 1 .

[0019] Furthermore, the position deviation between the valve plate assembly and the valve seat is ≤0.08 μm.

[0020] Furthermore, the valve plate 1 is coated with a nickel layer.

[0021] The high-speed railway valve group assembly in the present invention is used to replace the imported valve group. During installation, the valve disc 1 is fitted with the valve seat, and the valve disc 1 is covered with the limiter 20, and the valve disc 1 is evenly covered on the valve seat; after the limiter 20 is assembled, the valve disc 1 and the valve seat are checked for leakage; the assembly position of the valve disc 1, the limiter 20 and the valve seat is ensured by a positioning fixture, and the deviation is required to be ≤0.08μm; in the leakage inspection of the valve disc 1 and the valve seat, under the condition that there is no oil on the sealing surface of the valve hole port, the leakage amount is guaranteed to be ≤100ml / min under 1.0MPa.

[0022] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-speed railway valve assembly, which is installed on a valve seat, is characterized by: It includes a valve plate, which is provided with two symmetrical valve plate groups, each valve plate group includes two valve plates, and a limiter is detachably installed on the valve plate; the valve plate and the valve seat are detachably installed; the valve plate, the limiter and the valve seat are assembled into one by a positioning fixture.

2. The high-speed railway valve assembly according to claim 1, characterized in that: A groove is provided in the middle of the valve plate, and three vertically arranged first through holes are provided in the groove.

3. The high-speed railway valve assembly according to claim 2, characterized in that: Second through holes are provided at the four corners of the valve plate.

4. The high-speed railway valve assembly according to claim 3, characterized in that: The position deviation between the valve plate group and the valve seat is ≤0.08 μm.

5. The high-speed railway valve assembly according to claim 4, characterized in that: The valve plate is coated with a nickel layer.

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