Butterfly valve casting with torque adjusting function

Abstract

The invention relates to the field of butterfly valves, and discloses a butterfly valve casting with an adjustable torque function, the butterfly valve casting comprises a valve body, the top side of the valve body is fixedly connected with a first metal pipe, the right side of the top side of the valve body is fixedly connected with a second metal pipe, and the top side of the first metal pipe and the top side of the second metal pipe are provided with two valve covers; the bottom valve cover is fixedly connected to the top ends of the first metal pipe and the second metal pipe, the top valve cover is connected with the bottom valve cover through bolts and nuts, a cavity is formed between the two valve covers, a torque adjusting assembly is arranged in the cavity, and a lubricating assembly is arranged on the left side of the top side of each valve cover. According to the butterfly valve, lubricating oil flowing in from the oil storage tank through a pipeline is atomized and sprayed to the driving structure through the atomizing nozzle, so that the service life is prolonged, the torque is optimized, the torque can be changed by replacing half gears with different tooth numbers, and the butterfly valve has the capacity of changing the torque of the butterfly valve.

Description

Technical Field

[0001] This invention relates to the field of butterfly valves, and more particularly to a butterfly valve casting with adjustable torque. Background Technology

[0002] A butterfly valve is a simple, small, and lightweight regulating valve widely used in industrial and civil applications. It controls the flow of media by rotating a butterfly plate. When the butterfly plate rotates to a position perpendicular to the pipeline axis, the valve is fully closed, blocking the flow of media and achieving media cutoff. As the butterfly plate gradually rotates away from the vertical position, the media begins to pass through the gaps between the butterfly plate and the valve body, gradually increasing the valve opening and flow rate. When the butterfly plate rotates to a position parallel to the pipeline axis, the valve is fully open, allowing the media to flow freely in the pipeline.

[0003] However, current butterfly valves are difficult to maintain because the structure that drives the butterfly plate to rotate is not easy to maintain. As a result, these structures suffer excessive friction damage after long-term use, which leads to torque deterioration. Furthermore, the torque of these structures in the butterfly valve is not easy to adjust, which means that the butterfly valve does not have the ability to adjust its own torque.

[0004] In response to this technical problem, this application proposes a butterfly valve casting with adjustable torque. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a butterfly valve casting with adjustable torque function. It aims to atomize and spray the lubricating oil flowing from the oil tank through the pipeline onto the drive structure through an atomizing nozzle, thereby improving service life and optimizing torque. It also allows the torque to be changed by replacing the half gears with different numbers of teeth, so that the butterfly valve has the ability to change its own torque.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A butterfly valve casting with adjustable torque includes a valve body for allowing fluid to pass through. A first metal tube is fixedly connected to the top side of the valve body, and a second metal tube is fixedly connected to the right side of the top side of the valve body. Two valve covers are provided on the top sides of the first and second metal tubes. The bottom valve cover is fixedly connected to the top ends of the first and second metal tubes. The top valve cover is connected to the bottom valve cover by bolts and nuts. A cavity is provided between the two valve covers. A torque adjustment assembly is provided inside the cavity to adjust the torque of the butterfly valve. A lubrication assembly is provided on the left side of the top side of the valve cover to spray lubricating oil into the valve cover. The torque adjustment assembly includes a first rotating rod rotatably connected to the left side inside the cavity. A driven gear is fixedly connected to the top end of the first rotating rod.

[0007] Furthermore, the outer wall of the first rotating rod is rotatably connected to the inside of the first metal tube, and a butterfly plate is fixedly connected to the bottom end of the first rotating rod, the butterfly plate being rotatably connected to the inside of the valve body.

[0008] Furthermore, a second rotating rod is rotatably connected to the right side inside the cavity. The outer wall of the second rotating rod is provided with two half gears, which mesh with the driven gear. The outer wall of the bottom side of the second rotating rod is rotatably connected to the inside of the second metal tube.

[0009] Furthermore, a first insert rod is fixedly connected to each of the two half gears on their adjacent sides, and a first slot is provided on the outer wall of the second rotating rod, into which the first insert rod is inserted.

[0010] Furthermore, a second slot is provided on both the front and rear sides of the right side of the left half gear, and a second insert rod is fixedly connected to both the front and rear sides of the left side of the right half gear, with the second insert rod inserted into the second slot.

[0011] Furthermore, the lubrication assembly includes an oil reservoir fixedly connected to the left side of the top side of the valve cover, an atomizing nozzle connected to the bottom side of the oil reservoir via a pipe, the atomizing nozzle being located inside the cavity on the top side, and a plug being provided on the top side of the oil reservoir.

[0012] Furthermore, a mounting base is fixedly connected to the right side of the top side of the valve cover, a driving device is mounted on the top side of the mounting base, a control valve is provided on the left side of the driving device, and the driving device is connected to the second rotating rod.

[0013] The present invention has the following beneficial effects: In this invention, an atomizing nozzle is used to atomize and spray the lubricating oil flowing from the oil tank through the pipeline onto the surface of the driven gear and the half gear, thereby reducing the friction between the driven gear and the half gear, thus improving service life and optimizing torque.

[0014] In this invention, the two half-gears can be detached from the second rotating rod by the first and second insert rods, thereby allowing the torque to be changed by replacing the half-gears with different numbers of teeth, thus enabling the butterfly valve to change its own torque. Attached Figure Description

[0015] Figure 1 This is a perspective view of a butterfly valve casting with adjustable torque function proposed in this invention. Figure 2 This is a perspective view of the mounting plate, drive device, and control valve of a butterfly valve casting with adjustable torque function proposed in this invention. Figure 3This is a cross-sectional view of a butterfly valve casting with adjustable torque function proposed in this invention. Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a perspective view of the mounting plate, drive device, and control valve of a butterfly valve casting with adjustable torque function proposed in this invention. Figure 6 This is a schematic diagram of the half-gear structure of a butterfly valve casting with adjustable torque function proposed in this invention.

[0016] Legend: 1. Valve body; 2. First metal tube; 3. Second metal tube; 4. Valve cover; 5. Oil reservoir; 6. Mounting base; 7. Butterfly plate; 8. Drive unit; 9. Control valve; 10. Atomizing nozzle; 11. First rotating rod; 12. Driven gear; 13. Second rotating rod; 14. Half gear; 15. First insert rod; 16. Second insert rod. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Reference Figures 1-3 One embodiment of the present invention provides a butterfly valve casting with adjustable torque, comprising a valve body 1 for allowing fluid to pass through, a first metal pipe 2 fixedly connected to the top side of the valve body 1, a second metal pipe 3 fixedly connected to the right side of the top side of the valve body 1, two valve covers 4 disposed on the top sides of the first metal pipe 2 and the second metal pipe 3, and a bottom valve cover 4 fixedly connected to the top ends of the first metal pipe 2 and the second metal pipe 3, the top valve cover 4 being connected to the bottom valve cover 4 by bolts and nuts, and a cavity being provided between the two valve covers 4. (Refer to...) Figure 5Inside the cavity, on the left side, a first rotating rod 11 is rotatably connected. A driven gear 12 is fixedly connected to the top of the first rotating rod 11, driving the first rotating rod 11 to rotate. The outer wall of the first rotating rod 11 is rotatably connected to the inside of the first metal tube 2. A butterfly plate 7 is fixedly connected to the bottom of the first rotating rod 11, rotatably connected inside the valve body 1. The butterfly plate 7 controls the flow rate of fluid flowing inside the valve body 1. Inside the cavity, on the right side, a second rotating rod 13 is rotatably connected. Two half-gears 14 are provided on the outer wall of the second rotating rod 13. Rotating the second rotating rod 13... The two half gears 14 rotate, and the two half gears 14 mesh with the driven gear 12. The outer wall of the bottom side of the second rotating rod 13 is rotatably connected to the inside of the second metal tube 3. The driven gear 12 and half gear 14 mesh with each other to drive the first rotating rod 11 to rotate, thereby causing the butterfly plate 7 to rotate, thereby controlling the flow rate of the fluid in the valve body 1. Since the number of teeth of the two half gears 14 is greater than the number of teeth of the driven gear 12, the force required to drive the first rotating rod 11 by rotating the second rotating rod 13 is smaller, thereby reducing the torque of the drive device 8.

[0019] Reference Figures 4-6 Two half-gears 14 are fixedly connected to adjacent sides with first insert rods 15. A first slot is provided on the outer wall of the second rotating rod 13, and the first insert rods 15 are inserted into the first slots. By inserting the first insert rods 15 into the first slots, the two half-gears 14 are mounted onto the first insert rods 15. Second slots are provided on the front and rear sides of the right side of the left half-gear 14, and second insert rods 16 are fixedly connected to the front and rear sides of the left side of the right half-gear 14. The second insert rods 16 are inserted into the second slots. By inserting the second insert rods 16 into the second slots, the two half-gears 14 can be spliced ​​together. The top valve cover 4 has a top left side... An oil reservoir 5 is fixedly connected to the side. An atomizing nozzle 10 is connected to the bottom side of the oil reservoir 5 through a pipe. The atomizing nozzle 10 is located on the top side inside the cavity. The atomizing nozzle 10 atomizes the lubricating oil flowing in from the oil reservoir 5 through the pipe and sprays it onto the surface of the driven gear 12 and the half gear 14. A plug is provided on the top side of the oil reservoir 5. A mounting base 6 is fixedly connected to the right side of the top side of the top valve cover 4. A drive device 8 is installed on the top side of the mounting base 6. A control valve 9 is provided on the left side of the drive device 8. The drive device 8 is connected to the second rotating rod 13, so that rotating the control valve 9 causes the drive device 8 to drive the second rotating rod 13 to rotate.

[0020] Working principle: First, the left half gear 14 is fixed to the second rotating rod 13 by inserting the first insert rod 15 into the first slot. Then, the right half gear 14 is fixed to the second rotating rod 13 by inserting the first insert rod 15 into the first slot, and at the same time, the second insert rod 16 is inserted into the second slot, thereby fixing the two half gears 14 to the second rotating rod 13. Then, the second rotating rod 13 is aligned with the second metal tube 3 and inserted into the interior of the second metal tube 3, so that the driven gear 12 and the half gear 14 mesh with each other. Then, the valve cover 4 on the top side is fixed to the valve cover 4 on the bottom side by bolts and nuts. Then, the drive device 8 is installed on the mounting base 6 and connected to the second rotating rod 13. Then, the control valve 9 is rotated to make the drive device 8 drive the second rotating rod 13 to rotate, so that the half gear 14 rotates, which in turn drives the driven gear 12 to rotate, so that the first rotating rod 11 rotates to drive the butterfly plate 7 to rotate, thereby adjusting the flow rate of the fluid flowing through the valve body 1.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A butterfly valve casting with adjustable torque function, characterized in that: The valve includes a valve body (1) for allowing fluid to pass through. A first metal tube (2) is fixedly connected to the top side of the valve body (1), and a second metal tube (3) is fixedly connected to the right side of the top side of the valve body (1). Two valve covers (4) are provided on the top side of the first metal tube (2) and the second metal tube (3). The bottom valve cover (4) is fixedly connected to the top end of the first metal tube (2) and the second metal tube (3). The top valve cover (4) is connected to the bottom valve cover (4) by bolts and nuts. A cavity is provided between the two valve covers (4). A torque adjustment component is provided inside the cavity to adjust the torque of the butterfly valve. A lubrication component is provided on the left side of the top side of the valve cover (4) to spray lubricating oil into the valve cover (4). The torque adjustment component includes a first rotating rod (11) rotatably connected to the left side inside the cavity. A driven gear (12) is fixedly connected to the top end of the first rotating rod (11).

2. A butterfly valve casting with adjustable torque function according to claim 1, characterized in that: The outer wall of the first rotating rod (11) is rotatably connected to the inside of the first metal tube (2), and the bottom end of the first rotating rod (11) is fixedly connected to a butterfly plate (7), which is rotatably connected to the inside of the valve body (1).

3. A butterfly valve casting with adjustable torque function according to claim 1, characterized in that: The cavity is rotatably connected to the right side of the second rotating rod (13). The outer wall of the second rotating rod (13) is provided with two half gears (14). The two half gears (14) mesh with the driven gear (12). The outer wall of the bottom side of the second rotating rod (13) is rotatably connected to the inside of the second metal tube (3).

4. A butterfly valve casting with adjustable torque function according to claim 3, characterized in that: The two half gears (14) are fixedly connected to a first insert rod (15) on their adjacent sides. The outer wall of the second rotating rod (13) is provided with a first slot, and the first insert rod (15) is inserted into the first slot.

5. A butterfly valve casting with adjustable torque function according to claim 3, characterized in that: The left half gear (14) has a second slot on both the front and rear sides of the right side, and the right half gear (14) has a second rod (16) fixedly connected to both the front and rear sides of the left side, and the second rod (16) is inserted into the second slot.

6. A butterfly valve casting with adjustable torque function according to claim 1, characterized in that: The lubrication assembly includes an oil reservoir (5) fixedly connected to the left side of the top of the valve cover (4) on the top side. The bottom side of the oil reservoir (5) is connected to an atomizing nozzle (10) through a pipe. The atomizing nozzle (10) is located on the top side inside the cavity. A plug is provided on the top side of the oil reservoir (5).

7. A butterfly valve casting with adjustable torque function according to claim 1, characterized in that: A mounting base (6) is fixedly connected to the right side of the top side of the valve cover (4). A drive device (8) is installed on the top side of the mounting base (6). A control valve (9) is provided on the left side of the drive device (8). The drive device (8) is connected to the second rotating rod (13).

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