High-speed rail valve group assembly

Abstract

The utility model discloses a high-speed rail valve group assembly which is installed on a valve seat and comprises a valve plate, two symmetrical valve plate groups are arranged on the valve plate, each valve plate group comprises two valve plates, and limiters are detachably installed on the valve plates. The valve plate and the valve seat are detachably mounted; and the valve plate, the limiter and the valve seat are assembled into a whole through a positioning clamp. The high-speed rail valve group assembly is manufactured for replacing an inlet valve group, during installation, the valve plates are attached to the valve seat, the valve plates are covered with the limiters, and the valve plates are evenly covered on the valve seat; after the limiter is assembled, the valve plate and the valve seat are subjected to leakage inspection; the assembly positions of the valve plate, the limiter and the valve seat are ensured by adopting a positioning clamp, and the required deviation is less than or equal to 0.08 mu m; the leakage check of the valve plate and the valve seat ensures that the leakage rate is less than or equal to 100lm / min under 1.0 MPa under the condition that the sealing surface of the port of the valve hole is free of oil.

Description

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 sheet, a limiter, etc. The assembly requirement is that the valve sheet is fitted with the valve seat, the valve sheet is covered with the limiter, and the valve sheet is evenly covered on the valve seat; however, the existing high-speed rail valve groups are mostly imported. In order to save costs, the utility model provides a self-manufactured high-speed rail valve group assembly to replace the imported valve groups to save costs. Utility Model Content

[0003] The main purpose of the utility model is to provide a high-speed rail valve group assembly to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed rail valve group assembly, the valve group assembly is installed on a valve seat, including a valve plate, the valve plate 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 as a whole by a positioning clamp.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: a groove is provided in the middle of the valve plate, and three vertically arranged first through holes are provided in the groove.

[0006] On the basis of the above solution and as a preferred solution of the above solution: second through holes are provided at the four corners of the valve plate.

[0007] On the basis of the above solution and as a preferred solution of the above solution: the position deviation between the valve plate group and the valve seat is ≤0.08 μm.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the valve plate is coated with a nickel layer.

[0009] The beneficial effects of the utility model are as follows: the high-speed rail valve group assembly in the utility model is made for the purpose of replacing imported valve groups. During installation, the valve plate is fitted with the valve seat, and the valve plate is covered with the limiter, and the valve plate is evenly covered on the valve seat; after the limiter is assembled, the valve plate and the valve seat are checked for leakage; the assembly position of the valve plate, the limiter and the valve seat is guaranteed by a positioning fixture, and the deviation is required to be ≤0.08μm; the valve plate and the valve seat are checked for leakage, and under the condition that there is no oil on the sealing surface of the valve hole port, the leakage is guaranteed to be ≤100lm / min at 1.0MPa. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0011] In order to make the objectives, technical solutions and advantages of the present 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 for illustrative purposes only 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 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0013] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0014] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0016] See attached figure Figure 1 In this embodiment, a high-speed rail valve group assembly is installed on a valve seat, including a valve plate 1, on which two symmetrical valve plate groups are arranged, 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 as a whole 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 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 rail valve group assembly in the utility model is made for the purpose of replacing imported valve groups. During installation, the valve plate 1 fits with the valve seat, and the valve plate 1 is covered with the limiter 20, and the valve plate 1 is evenly covered on the valve seat; after the limiter 20 is assembled, the valve plate 1 and the valve seat are checked for leakage; the assembly position of the valve plate 1, the limiter 20 and the valve seat is guaranteed by a positioning fixture, and the deviation is required to be ≤0.08μm; the valve plate 1 and the valve seat are checked for leakage, and under the condition that there is no oil on the sealing surface of the valve hole port, the leakage is guaranteed to be ≤100lm / min at 1.0MPa.

[0022] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope 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 protection scope of the present invention.

Claims

1. A high-speed rail valve assembly, the valve assembly is installed on a valve seat, characterized in that: 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 as a whole by a positioning fixture.

2. A 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. A 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. A 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. A 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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