Butterfly valve casting with torque adjusting function

Abstract

The utility model relates to the field of butterfly valves, and discloses a butterfly valve casting with an adjustable torque function, which 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 utility model, the lubricating oil flowing from the oil storage tank through the pipeline is atomized and sprayed to the driving structure through the atomizing nozzle, so that the service life is prolonged, the torque is optimized, and the torque can be changed by replacing half gears with different tooth numbers, and the butterfly valve has the capability of changing the self torque.

Description

Technical Field

[0001] The utility model relates to the field of butterfly valves, in particular to a butterfly valve casting with an adjustable torque function. Background Art

[0002] A butterfly valve is a simple, compact, and lightweight regulating valve widely used in both industrial and civilian applications. It controls the flow of media by rotating the disc. When the disc rotates perpendicular to the pipeline axis, the valve is fully closed, blocking the flow path and effectively shutting off the media. As the disc gradually rotates away from the perpendicular position, the media begins to flow through the gap between the disc and the valve body, gradually increasing the valve opening and the flow rate. When the disc rotates parallel to the pipeline axis, the valve is fully open, allowing the media to flow unimpeded through the pipeline.

[0003] However, the current butterfly valves are difficult to maintain because the structures that drive the butterfly plate to rotate are too difficult to maintain, resulting in excessive friction damage to these structures after long-term use, which in turn causes torque degradation. In addition, the torque of these structures in the butterfly valve is inconvenient to adjust, resulting in the butterfly valve being unable to adjust its own torque.

[0004] In this regard, in response to this technical problem, the present application proposes a butterfly valve casting with an adjustable torque function. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a butterfly valve casting with an adjustable torque function, which aims to atomize the lubricating oil flowing from the oil tank through the pipeline and spray it onto the drive structure through an atomizing nozzle, thereby improving the service life and optimizing the torque and making it possible to change the torque by replacing 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 solutions:

[0007] A butterfly valve casting with an adjustable torque function includes a valve body for allowing fluid to pass through, a first metal tube fixedly connected to the top side of the valve body, a second metal tube 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 metal tube and the second metal tube, the valve covers on the bottom side are fixedly connected to the top ends of the first metal tube and the second metal tube, the valve covers on the top side are connected to the valve covers on the bottom side by bolts and nuts, a cavity is provided between the two valve covers, a torque adjustment assembly is provided inside the cavity for adjusting the torque of the butterfly valve, and a lubrication assembly is provided on the left side of the top side of the valve cover for spraying lubricating oil into the inside of the valve cover.

[0008] Furthermore, the torque adjustment assembly includes a first rotating rod rotatably connected to the left side of the cavity, and the top end of the first rotating rod is fixedly connected to a driven gear.

[0009] Furthermore, the outer wall of the first rotating rod is rotatably connected to the inside of the first metal tube, the bottom end of the first rotating rod is fixedly connected to a butterfly plate, and the butterfly plate is rotatably connected to the inside of the valve body.

[0010] Furthermore, a second rotating rod is rotatably connected to the right side of the cavity, and two half gears are provided on the outer wall of the second rotating rod. The two half gears and the driven gear are engaged with each other, and the outer wall of the bottom side of the second rotating rod is rotatably connected to the inside of the second metal tube.

[0011] Furthermore, adjacent sides of the two half gears are fixedly connected with a first insertion rod, an outer wall of the second rotating rod is provided with a first slot, and the first insertion rod is inserted into the first slot.

[0012] Furthermore, second slots are provided on both the front and rear sides of the right side of the left half gear, and second insertion rods are fixedly connected to both the front and rear sides of the left side of the right half gear, and the second insertion rods are inserted into the second slots.

[0013] Furthermore, the lubrication assembly includes an oil storage tank fixedly connected to the left side of the top side of the valve cover, the bottom side of the oil storage tank is connected to an atomizing nozzle through a pipeline, the atomizing nozzle is located on the top side of the cavity, and a plug is provided on the top side of the oil storage tank.

[0014] Furthermore, a mounting seat is fixedly connected to the right side of the top side of the valve cover, a driving device is installed on the top side of the mounting seat, a control valve is provided on the left side of the driving device, and the driving device is connected to the second rotating rod.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, the lubricating oil flowing from the oil storage tank through the pipeline is atomized by the atomizing nozzle and sprayed onto the surfaces of the driven gear and the half gear, thereby reducing the friction between the driven gear and the half gear, thereby increasing the service life and optimizing the torque.

[0017] In the utility model, the two half gears can be disassembled from the second rotating rod by the first plug rod and the second plug rod, so that the torque can 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of a butterfly valve casting with an adjustable torque function proposed in the present invention;

[0019] Figure 2 This is a three-dimensional diagram of the installation butterfly plate, drive device and control valve of a butterfly valve casting with adjustable torque function proposed by the utility model;

[0020] Figure 3 This is a cross-sectional view of a butterfly valve casting with adjustable torque function proposed by the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 This is a three-dimensional diagram of the installation butterfly plate, drive device and control valve of a butterfly valve casting with adjustable torque function proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the half-gear structure of a butterfly valve casting with adjustable torque function proposed by the utility model.

[0024] Legend:

[0025] 1. Valve body; 2. First metal tube; 3. Second metal tube; 4. Valve cover; 5. Oil storage tank; 6. Mounting seat; 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 plug rod; 16. Second plug rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1-Figure 3 , the utility model provides an embodiment: a butterfly valve casting with an adjustable torque function, including a valve body 1 for allowing fluid to pass through, the top side of the valve body 1 is fixedly connected to a first metal tube 2, the right side of the top side of the valve body 1 is fixedly connected to a second metal tube 3, the top sides of the first metal tube 2 and the second metal tube 3 are provided with two valve covers 4, the bottom side valve cover 4 is fixedly connected to the top ends of the first metal tube 2 and the second metal tube 3, the top side valve cover 4 is connected to the bottom side valve cover 4 by bolts and nuts, and a cavity is provided between the two valve covers 4, refer to Figure 5The left side of the cavity is rotatably connected to a first rotating rod 11, and the top of the first rotating rod 11 is fixedly connected to a driven gear 12. The first rotating rod 11 is driven to rotate by driving the driven gear 12. The outer wall of the first rotating rod 11 is rotatably connected to the inside of the first metal tube 2. The bottom end of the first rotating rod 11 is fixedly connected to a butterfly plate 7. The butterfly plate 7 is rotatably connected to the inside of the valve body 1. The flow rate of the fluid flowing inside the valve body 1 is controlled by the butterfly plate 7. The right side of the cavity is rotatably connected to a second rotating rod 13. The outer wall of the second rotating rod 13 is provided with two half gears 14. By rotating the second rotating rod 1 3 to rotate the two half gears 14, and the two half gears 14 and the driven gear 12 are meshed with each other. 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, and the driven gear 12 and the half gear 14 that are meshed with each other drive the first rotating rod 11 to rotate, thereby rotating the butterfly plate 7, thereby controlling the flow rate of the fluid in the valve body 1. In addition, because the total 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 rotate the second rotating rod 13 to drive the first rotating rod 11 is small, thereby reducing the torque of the driving device 8.

[0028] Reference Figure 4-Figure 6 , the adjacent sides of the two half gears 14 are fixedly connected with a first plug rod 15, and the outer wall of the second rotating rod 13 is provided with a first slot, and the first plug rod 15 is inserted in the first slot. By inserting the first plug rod 15 into the first slot, the two half gears 14 are installed on the first plug rod 15, and the front and rear sides of the right side of the left half gear 14 are provided with a second slot, and the front and rear sides of the left side of the right half gear 14 are fixedly connected with a second plug rod 16, and the second plug rod 16 is inserted in the second slot. By inserting the second plug rod 16 into the second slot, the two half gears 14 can be spliced ​​together, and the top side valve cover 4 has a left top side. The side is fixedly connected to an oil storage tank 5, and the bottom side of the oil storage tank 5 is connected to an atomizing nozzle 10 through a pipeline. The atomizing nozzle 10 is located on the top side of the cavity. The lubricating oil flowing in from the oil storage tank 5 through the pipeline is atomized and sprayed onto the surface of the driven gear 12 and the half gear 14 through the atomizing nozzle 10. A plug is provided on the top side of the oil storage tank 5, and a mounting seat 6 is fixedly connected to the top right side of the top side valve cover 4. A driving device 8 is installed on the top side of the mounting seat 6, and a control valve 9 is provided on the left side of the driving device 8. The driving device 8 is connected to the second rotating rod 13, so that the control valve 9 is rotated to make the driving device 8 drive the second rotating rod 13 to rotate.

[0029] Working principle: First, the left half gear 14 is fixed to the second rotating rod 13 by inserting the first plug rod 15 into the first slot, and then the right half gear 14 is fixed to the second rotating rod 13 by inserting the first plug rod 15 into the first slot, and at the same time, the second plug rod 16 is inserted into the second slot, so that the two half gears 14 are fixed to the second rotating rod 13, and 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, and the driven gear 12 and the half gear 14 are engaged with each other, and then the top valve cover 4 is fixed to the bottom valve cover 4 by bolts and nuts, and then the drive device 8 is installed on the mounting seat 6, and the drive device 8 and the second rotating rod 13 are connected, and 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, and then 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.

[0030] Finally, it should be noted that the above 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 aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A butterfly valve casting with adjustable torque function, characterized by: The invention comprises a valve body (1) for allowing fluid to pass through, wherein the top side of the valve body (1) is fixedly connected to a first metal tube (2), the right side of the top side of the valve body (1) is fixedly connected to a second metal tube (3), two valve covers (4) are provided on the top sides of the first metal tube (2) and the second metal tube (3), the bottom side of the valve cover (4) is fixedly connected to the top ends of the first metal tube (2) and the second metal tube (3), the top side of the valve cover (4) is connected to the bottom side of the 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 for adjusting the torque of the butterfly valve, and a lubrication component is provided on the left side of the top side of the valve cover (4) for spraying lubricating oil into the inside of the valve cover (4).

2. The butterfly valve casting with adjustable torque function according to claim 1, characterized in that: The torque adjustment assembly comprises a first rotating rod (11) rotatably connected to the left side of the cavity, and a driven gear (12) is fixedly connected to the top end of the first rotating rod (11).

3. The butterfly valve casting with adjustable torque function according to claim 2, 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), and the butterfly plate (7) is rotatably connected to the inside of the valve body (1).

4. The butterfly valve casting with adjustable torque function according to claim 2, characterized in that: A second rotating rod (13) is rotatably connected to the right side of the cavity. Two half gears (14) are provided on the outer wall of the second rotating rod (13). The two half gears (14) and the driven gear (12) are meshed with each other. 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).

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

6. The butterfly valve casting with adjustable torque function according to claim 4, characterized in that: The front and rear sides of the right side of the left half gear (14) are both provided with second slots, and the front and rear sides of the left side of the right half gear (14) are both fixedly connected with second insertion rods (16), and the second insertion rods (16) are inserted into the second slots.

7. The butterfly valve casting with adjustable torque function according to claim 1, characterized in that: The lubrication assembly comprises an oil storage tank (5) fixedly connected to the left side of the top side of the valve cover (4) on the top side, the bottom side of the oil storage tank (5) is connected to an atomizing nozzle (10) via a pipeline, the atomizing nozzle (10) is located on the top side of the cavity, and a plug is provided on the top side of the oil storage tank (5).

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

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