Hydraulic valve with lubricating function

Abstract

The utility model relates to the technical field of hydraulic valves, in particular to a hydraulic valve with a lubricating function, which comprises a valve main body, a pressurizing shell and a mounting shell are respectively welded on the left side and the right side of the valve main body, a fixed box is fixedly communicated with the left side of the top of the valve main body, and a filter screen box is slidably connected with an inner cavity of the fixed box. A sealing cover plate is inserted into the top of the fixing box, oil storage grooves are formed in the left side and the right side of an inner cavity of the valve body correspondingly, an oil injection hole and an oil discharge hole are formed in the top and the bottom of an inner cavity of each oil storage groove correspondingly, and an oil storage mechanism is connected to the rear side of the top of the valve body through bolts. Lubricating oil flows into the oil storage groove through the oil injection pipe and the oil injection hole to make contact with the surface of the valve element, the surface of the valve element is coated with the lubricating oil along with left-right sliding of the valve element, and therefore friction force between the surface of the valve element and the inner wall of the valve body can be reduced through the lubricating oil, the surface of the valve element is lubricated and protected, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valves, in particular to a hydraulic valve with a lubrication function. Background Art

[0002] A hydraulic valve is an automated component operated by pressurized oil. It is controlled by the pressure oil of a pressure regulating valve and is usually used in combination with an electromagnetic pressure regulating valve. It can be used to remotely control the on / off of the oil, gas and water pipeline systems in a hydropower station.

[0003] After searching, the announcement number is CN218267462U, and the name is a utility model of a hydraulic valve that is easy to disassemble, including a valve body, and a through hole is opened on the front of the valve body. Through research and analysis, it is found that although the disassembly process saves time and effort, thereby shortening the disassembly time of the hydraulic valve, and also improves the inspection and maintenance of the hydraulic valve, but, to a certain extent, the following defects still exist.

[0004] For example, it does not have a lubrication function, and the valve core needs to slide in the channel inside the valve to open and close the valve. The above hydraulic valve cannot lubricate the internal valve core, so the friction of the valve core in the valve for a long time will cause surface wear, and the gap between the valve core surface and the valve inner cavity will become larger, and the sealing performance of the hydraulic valve will decrease. At the same time, it does not have a filtering function and cannot filter out impurities in the medium flowing through the valve. After the impurities enter the valve, it is difficult to clean them up and cause blockage, which affects the normal use of the hydraulic valve. In order to solve the above technical problems, we have designed a hydraulic valve with a lubrication function. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic valve with a lubrication function, which has the advantages of lubrication function, protecting the valve core performance, extending the service life, and being able to filter impurities in the medium to avoid clogging in the valve, and solves the problems of being unable to lubricate the valve core surface, resulting in surface wear and affecting the service life, and being unable to filter impurities in the medium, resulting in clogging in the valve.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic valve with a lubrication function, comprising a valve body, a pressurizing shell and a mounting shell are respectively welded on the left and right sides of the valve body, a fixed box is fixedly connected to the left side of the top of the valve body, a filter box is slidably connected to the inner cavity of the fixed box, a sealing cover plate is plugged into the top of the fixed box, oil storage tanks are provided on the left and right sides of the inner cavity of the valve body, an oil filling hole and an oil drain hole are respectively provided on the top and bottom of the inner cavity of the oil storage tank, an oil storage mechanism is connected to the rear side of the top of the valve body by bolts, the oil storage mechanism comprises an oil storage cylinder, an oil filling pipe is fixedly connected to the front side of the bottom of the oil storage cylinder, and the bottom of the oil filling pipe is fixedly connected to the oil filling hole.

[0007] Preferably, the four corners of the inner cavity of the fixed box are fixedly connected with support plates, the four corners of the outer side of the fixed box are fixedly connected with plug-in frames, and a sealing slot is opened on the top of the fixed box.

[0008] Preferably, the sealing cover plate includes a cover plate body, a sealing plug is glued to the edge of the bottom of the cover plate body, the four corners of the outer side of the cover plate body are fixedly connected with positioning plugs, the top of the cover plate body is fixedly connected with a connecting sleeve, and the inner cavity of the connecting sleeve is fixedly connected with a connecting oil pipe.

[0009] Preferably, the top of the oil storage cylinder is fixedly connected to a refueling bucket, and the bottom of the oil drain hole is fixedly plugged with a plug.

[0010] Preferably, a push rod is slidably connected to the right side of the inner cavity of the pressurized shell, a pressurizing hole is opened at the top of the inner cavity of the pressurized shell, and a valve core is slidably connected to the inner cavity of the valve body.

[0011] Preferably, a limit screw is threadedly connected through the right side of the mounting shell, and a limit spring is fixedly connected to the left side of the limit screw.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The lubricating oil flows into the oil storage tank through the oil filling pipe and the oil filling hole and contacts the surface of the valve core. As the valve core slides left and right, the lubricating oil is coated on its surface. In this way, the lubricating oil will reduce the friction between the valve core surface and the inner wall of the valve body, lubricate and protect the valve core surface and extend its service life.

[0014] The medium enters the fixed box, and the filter box filters the impurities in the medium and collects them inside. The filtered medium flows into the valve body and finally flows out from the bottom. This can prevent impurities from entering the valve body, reduce the difficulty of cleaning the inside of the valve body, and prevent internal blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the structure of the utility model;

[0016] Figure 2 It is an internal isometric view of the valve body, pressurized housing and mounting housing of the utility model;

[0017] Figure 3 It is a sectional isometric view of the valve body, pressurized housing and mounting housing of the utility model;

[0018] Figure 4 This is an internal axonometric diagram of the fixed box of the utility model;

[0019] Figure 5 This is a bottom axonometric view of the sealing cover plate of the utility model.

[0020] In the figure: 1. valve body; 2. pressurized shell; 3. pressurized hole; 4. sealing cover plate; 5. connecting oil pipe; 6. oil storage mechanism; 7. mounting shell; 8. limiting screw; 9. oil filling pipe; 10. oil filling bucket; 11. oil storage cylinder; 12. oil filling hole; 13. limiting spring; 14. plug; 15. valve core; 16. oil drain hole; 17. push rod; 18. oil storage tank; 19. fixing box; 20. connecting sleeve; 21. plug-in frame; 22. sealing slot; 23. filter box; 24. support plate; 25. positioning plug plate; 26. sealing plug block; 27. cover plate body. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 A hydraulic valve with lubrication function comprises a valve body 1, a pressurizing shell 2 and a mounting shell 7 are welded on the left and right sides of the valve body 1, a fixed box 19 is fixedly connected to the left side of the top of the valve body 1, a filter box 23 is slidably connected to the inner cavity of the fixed box 19, a sealing cover plate 4 is plugged into the top of the fixed box 19, oil storage tanks 18 are provided on the left and right sides of the inner cavity of the valve body 1, an oil filling hole 12 and an oil drain hole 16 are provided on the top and bottom of the inner cavity of the oil storage tank 18, an oil storage mechanism 6 is connected to the rear side of the top of the valve body 1 by bolts, the oil storage mechanism 6 comprises an oil storage cylinder 11, an oil filling pipe 9 is fixedly connected to the front side of the bottom of the oil storage cylinder 11, and the bottom of the oil filling pipe 9 is fixedly connected to the oil filling hole 12;

[0022] See also Figure 4 The four corners of the inner cavity of the fixed box 19 are fixedly connected with support plates 24. By setting the support plates 24, the filter box 23 can be supported and positioned. The four corners of the outer side of the fixed box 19 are fixedly connected with plug-in frames 21. By setting the plug-in frames 21, the positioning plug-in plates 25 at the four corners of the cover body 27 can be conveniently inserted into the interior to realize the rapid disassembly and assembly of the sealing cover plate 4. A sealing slot 22 is opened on the top of the fixed box 19;

[0023] See also Figure 5 The sealing cover plate 4 includes a cover plate body 27. By setting the cover plate body 27, the fixed box 19 can be opened to take out the filter box 23 for cleaning. A sealing plug 26 is glued to the edge of the bottom of the cover plate body 27. By setting the sealing plug 26, it can be inserted into the sealing slot 22 on the fixed box 19 to improve the sealing between the cover plate body 27 and the fixed box 19. The four corners of the outer side of the cover plate body 27 are fixedly connected with positioning plugs 25. The top of the cover plate body 27 is fixedly connected with a connecting sleeve 20, and the inner cavity of the connecting sleeve 20 is fixedly connected with a connecting oil pipe 5;

[0024] See also Figure 2The top of the oil storage cylinder 11 is fixedly connected with a refueling bucket 10. By providing the refueling bucket 10, it is convenient to add lubricating oil into the oil storage cylinder 11. The bottom of the oil discharge hole 16 is fixedly plugged with a plug 14. By providing the plug 14, the bottom opening of the oil discharge hole 16 can be opened and closed, so as to facilitate the discharge of lubricating oil.

[0025] See also Figure 2 A push rod 17 is slidably connected to the right side of the inner cavity of the pressurized shell 2, a pressurized hole 3 is opened at the top of the inner cavity of the pressurized shell 2, and a valve core 15 is slidably connected to the inner cavity of the valve body 1;

[0026] See also Figure 2 The right side of the mounting shell 7 is threadedly connected with a limit screw 8 , and the left side of the limit screw 8 is fixedly connected with a limit spring 13 .

[0027] When in use, the hydraulic valve is connected to the external pipeline, and lubricating oil is injected into the oil storage cylinder 11. The lubricating oil flows into the oil storage tanks 18 on both sides through the oil filling pipes 9 and the oil filling holes 12 on both sides, and contacts the surface of the valve core 15. The pressurized oil is injected into the pressurized housing 2 through the pressurization hole 3, and moves to the right by pushing the push rod 17. The push rod 17 pushes the valve core 15 to slide to the right inside the valve body 1. During the sliding process of the valve core 15 surface to the right, the lubricating oil in the oil storage tank 18 will be coated on its surface, so that the lubricating oil will reduce the friction between the surface of the valve core 15 and the inner wall of the valve body 1, lubricate and protect the surface of the valve core 15 to extend the service life. When the valve core 15 moves to the far right, the upper and lower channels in the valve body 1 are connected, and the medium enters the fixed box 19 through the connecting oil pipe 5. The filter box 23 filters the impurities in the medium and collects them inside. The filtered medium flows into the valve body 1 and finally flows out from the bottom. In this way, impurities can be prevented from entering the valve body 1, reducing the difficulty of cleaning the inside of the valve body 1 and preventing internal blockage.

[0028] To sum up: the hydraulic valve with lubrication function, through the coordinated use of the valve body 1, the sealing cover plate 4, the oil storage mechanism 6, the oil filling hole 12, the valve core 15, the oil drain hole 16, the oil storage tank 18, the fixed box 19 and the filter box 23, solves the problem that the inner wall of the valve body cannot be lubricated, resulting in surface wear and affecting the service life, and the impurities in the medium cannot be filtered, causing blockage in the valve.

Claims

1. A hydraulic valve with a lubricating function, comprising a valve body (1), characterized in that: A pressurizing shell (2) and a mounting shell (7) are welded to the left and right sides of the valve body (1), respectively; a fixed box (19) is fixedly connected to the left side of the top of the valve body (1); a filter box (23) is slidably connected to the inner cavity of the fixed box (19); a sealing cover plate (4) is plugged into the top of the fixed box (19); oil storage tanks (18) are provided on the left and right sides of the inner cavity of the valve body (1); an oil filling hole (12) and an oil discharge hole (16) are provided at the top and bottom of the inner cavity of the oil storage tank (18), respectively; an oil storage mechanism (6) is connected to the rear side of the top of the valve body (1) by bolts; the oil storage mechanism (6) comprises an oil storage cylinder (11); an oil filling pipe (9) is fixedly connected to the front side of the bottom of the oil storage cylinder (11); and the bottom of the oil filling pipe (9) is fixedly connected to the oil filling hole (12).

2. A hydraulic valve with lubrication function according to claim 1, characterized in that: The four corners of the inner cavity of the fixed box (19) are fixedly connected to support plates (24), the four corners of the outer side of the fixed box (19) are fixedly connected to plug-in frames (21), and a sealing slot (22) is provided on the top of the fixed box (19).

3. The hydraulic valve with lubrication function according to claim 1, characterized in that: The sealing cover plate (4) comprises a cover plate body (27), a sealing plug block (26) is glued to the edge of the bottom of the cover plate body (27), four corners of the outer side of the cover plate body (27) are fixedly connected to positioning plug plates (25), the top of the cover plate body (27) is fixedly connected to a connecting sleeve (20), and the inner cavity of the connecting sleeve (20) is fixedly connected to a connecting oil pipe (5).

4. The hydraulic valve with lubrication function according to claim 1, characterized in that: The top of the oil storage cylinder (11) is fixedly connected to a refueling bucket (10), and the bottom of the oil discharge hole (16) is fixedly plugged with a plug (14).

5. The hydraulic valve with lubrication function according to claim 1, characterized in that: A push rod (17) is slidably connected to the right side of the inner cavity of the pressurized shell (2), a pressurized hole (3) is opened at the top of the inner cavity of the pressurized shell (2), and a valve core (15) is slidably connected to the inner cavity of the valve body (1).

6. The hydraulic valve with lubrication function according to claim 1, characterized in that: A limit screw (8) is threadedly connected through the right side of the mounting housing (7), and a limit spring (13) is fixedly connected to the left side of the limit screw (8).

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