Valve plate wear-resistant positioning device applied to pneumatic valve

Abstract

The utility model relates to the technical field of pneumatic valves, in particular to a valve plate wear-resistant positioning device applied to a pneumatic valve, which comprises a valve body and a wear positioning component arranged in the valve body, a valve cover is fixedly mounted at the top of the valve body, and a sliding groove is formed in the bottom of the valve cover. A valve plate body is attached to the inner surface of the sliding groove in a sliding mode, the valve plate body movably penetrates through the top of the valve body, and an air cylinder used for driving the valve plate body is fixedly installed at the top of the valve deck. The U-shaped steel plate, the U-shaped transition plate and the U-shaped ceramic plate are firmly combined, so that the structure not only has the characteristics of high strength, good toughness, impact resistance and good welding performance of steel, but also has the characteristics of high hardness, high wear resistance, corrosion resistance and good heat resistance of corundum porcelain; therefore, deformation and abrasion caused by friction and collision between the valve plate and the positioning abrasion assembly can be effectively reduced, the service life of the valve plate is prolonged, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molecular sieve crushing, in particular to a wear-resistant positioning device for a valve plate of a pneumatic valve. Background Art

[0002] Pneumatic valves are essential accessories for controlling the flow of media in industrial pipelines. They are often used to open and close the inlet and outlet pipes of dust removal equipment. Because pneumatic valves are often used in high-temperature environments, metal valves are often used in the market to adapt to these conditions. Pneumatic valves consist of three main components: the valve body, the opening and closing mechanism, and the valve cover.

[0003] At present, the opening and closing mechanism on the pneumatic valve is easily deformed by the temperature due to the frequent use. In severe cases, the connection between the valve plate and the valve body will become loose, and friction between the valve plate and the valve body will occur for a long time, causing the valve plate to be easily worn and causing air leakage, thereby causing problems with equipment performance. Utility Model Content

[0004] The purpose of the utility model is to solve the problems in the background technology and to propose a wear-resistant positioning device for a valve plate of a pneumatic valve.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A wear-resistant positioning device for a valve plate of a pneumatic valve, comprising a valve body and a positioning wear assembly disposed within the valve body, a valve cover fixedly mounted on the top of the valve body, a sliding groove formed at the bottom of the valve cover, a valve plate body slidingly fitted on the inner surface of the sliding groove, and the valve plate body movably passing through the top of the valve body, and a cylinder for driving the valve plate body fixedly mounted on the top of the valve cover;

[0007] The positioning wear assembly includes a U-shaped groove opened in the valve body, a U-shaped steel plate is fixedly installed in the U-shaped groove, and the U-shaped steel plate is fixed through the top of the valve body, a U-shaped transition plate is fixedly installed in the U-shaped steel plate, and a U-shaped ceramic plate is fixedly installed in the U-shaped transition plate, and the material of the U-shaped ceramic plate is corundum porcelain.

[0008] Preferably, a through hole is formed on the top of the valve body, and the through hole is slidably connected to the valve plate body.

[0009] Preferably, the valve plate body is airtightly fitted in the sliding groove, and a sealing plate is provided on the surface of the valve plate body.

[0010] Preferably, the outer dimensions of the valve plate body are the same as the inner dimensions of the U-shaped ceramic plate.

[0011] Preferably, the U-shaped steel plate, U-shaped transition plate and U-shaped ceramic plate are arranged in sequence from inside to outside in the U-shaped groove.

[0012] Compared with the existing technology, the advantages of this wear-resistant positioning device for pneumatic valve disc are:

[0013] 1. When the valve plate is moved downward by the cylinder to close the valve body, the valve plate can be inserted into the positioning wear device. The U-shaped steel plate, U-shaped transition plate and U-shaped ceramic plate form a solid bond from the outside to the inside. This structure not only has the high strength, good toughness, impact resistance and good welding performance of steel, but also has the high hardness, high wear resistance, corrosion resistance and good heat resistance of corundum ceramic. This can effectively reduce the deformation and wear caused by friction and collision between the valve plate and the positioning wear component, thereby extending the service life of the valve plate and improving the sealing performance.

[0014] 2. The sealing plate provided on the surface of the valve plate body effectively increases the sealing between the valve plate body and the sliding groove, thereby preventing the flowing medium from penetrating into the sliding groove and causing air leakage;

[0015] To sum up, the utility model forms a firm bond between the U-shaped steel plate, the U-shaped transition plate and the U-shaped ceramic plate, so that the structure has the high strength, good toughness, impact resistance and good welding performance of steel, and also has the high hardness, high wear resistance, corrosion resistance and good heat resistance of corundum ceramic, thereby effectively reducing the deformation and wear caused by friction and collision between the valve plate and the positioning wear component, thereby extending the service life of the valve plate and improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of a wear-resistant positioning device for a pneumatic valve plate proposed by the present invention;

[0017] Figure 2 This is a schematic structural diagram of a wear-resistant positioning device for a pneumatic valve plate proposed by the present invention;

[0018] Figure 3 This is an exploded view of a wear-resistant positioning device for a pneumatic valve plate used in the present invention;

[0019] Figure 4 This is a partial structural diagram of a wear-resistant positioning device for a pneumatic valve plate proposed by the utility model.

[0020] In the figure: 1 valve body, 2 valve cover, 3 sliding groove, 4 valve plate body, 5 U-shaped steel plate, 6 U-shaped transition plate, 7 U-shaped ceramic plate, 8 through hole, 9 cylinder. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 4 A wear-resistant positioning device for a valve plate of a pneumatic valve includes a valve body 1 and a positioning wear component arranged in the valve body 1. A valve cover 2 is fixedly installed on the top of the valve body 1. A sliding groove 3 is provided at the bottom of the valve cover 2. The inner surface of the sliding groove 3 is slidably fitted with a valve plate body 4. The valve plate body 4 is airtightly fitted in the sliding groove 3, and a sealing plate is provided on the surface of the valve plate body 4, which effectively increases the sealing between the valve plate body 4 and the sliding groove 3 to prevent the flowing medium from penetrating into the sliding groove 3.

[0023] The valve plate body 4 is movable through the top of the valve body 1, and a cylinder 9 for driving the valve plate body 4 is fixedly installed on the top of the valve cover 2. The cylinder 9 can realize the opening and closing process of the valve body 1 by controlling the valve plate body 4 to move up or down.

[0024] The positioning wear assembly includes a U-shaped groove opened in the valve body 1, a U-shaped steel plate 5 is fixedly installed in the U-shaped groove, and the U-shaped steel plate 5 is fixedly installed on the top of the valve body 1, a U-shaped transition plate 6 is fixedly installed in the U-shaped steel plate 5, a U-shaped ceramic plate 7 is fixedly installed in the U-shaped transition plate 6, and the material of the U-shaped ceramic plate 7 is corundum porcelain. The U-shaped steel plate 5, the U-shaped transition plate 6 and the U-shaped ceramic plate 7 are arranged in sequence from the inside to the outside in the U-shaped groove. The U-shaped ceramic plate 7 is formed into a dense Corundum porcelain (AL2O3) is firmly bonded through the U-shaped plate 6 and the U-shaped steel plate 5, so that the structure has the high strength, good toughness, impact resistance and good welding performance of steel, and also has the characteristics of high hardness, high wear resistance, corrosion resistance and good heat resistance of corundum porcelain. Therefore, when the cylinder 9 controls the valve plate body 4 to descend and close the valve body 1, it can effectively reduce the deformation and wear caused by the friction and collision between the valve plate body 4 and the positioning wear component, thereby extending the service life of the valve plate body 4 and improving the sealing performance.

[0025] Furthermore, a through hole 8 is opened on the top of the valve body 1, and the through hole 8 is slidingly connected to the valve plate body 4. The outer size of the valve plate body 4 is the same as the inner size of the U-shaped ceramic plate 7, which can enable the valve plate body 4 to maintain an airtight fit when fitting with the U-shaped ceramic plate 7 to prevent air leakage.

[0026] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wear-resistant positioning device for a pneumatic valve plate, characterized in that: The invention comprises a valve body (1) and a positioning wear assembly arranged in the valve body (1); a valve cover (2) is fixedly installed on the top of the valve body (1); a sliding groove (3) is provided on the bottom of the valve cover (2); a valve plate body (4) is slidably fitted on the inner surface of the sliding groove (3); the valve plate body (4) is movably passed through the top of the valve body (1); and a cylinder (9) for driving the valve plate body (4) is fixedly installed on the top of the valve cover (2); The positioning wear assembly includes a U-shaped groove provided in the valve body (1), a U-shaped steel plate (5) is fixedly installed in the U-shaped groove, and the U-shaped steel plate (5) is fixedly passed through the top of the valve body (1), a U-shaped transition plate (6) is fixedly installed in the U-shaped steel plate (5), a U-shaped ceramic plate (7) is fixedly installed in the U-shaped transition plate (6), and the material of the U-shaped ceramic plate (7) is corundum porcelain.

2. The wear-resistant positioning device for a pneumatic valve plate according to claim 1, characterized in that: A through hole (8) is provided on the top of the valve body (1), and the through hole (8) is slidably connected to the valve plate body (4).

3. The wear-resistant positioning device for a pneumatic valve plate according to claim 1, characterized in that: The valve plate body (4) is airtightly fitted in the sliding groove (3), and a sealing plate is provided on the surface of the valve plate body (4).

4. The wear-resistant positioning device for a pneumatic valve plate according to claim 1, characterized in that: The outer dimensions of the valve plate body (4) are the same as the inner dimensions of the U-shaped ceramic plate (7).

5. The wear-resistant positioning device for a pneumatic valve plate according to claim 1, characterized in that: The U-shaped steel plate (5), the U-shaped transition plate (6) and the U-shaped ceramic plate (7) are arranged in sequence from the inside to the outside in the U-shaped groove.

Images