Valve driving device

Abstract

The utility model belongs to the field of valves, and particularly relates to a valve driving device which is characterized in that a valve element of a valve body is connected with a valve rotating rod, an external frame is arranged on the outer side of the valve body, the valve rotating rod is rotatably connected with the external frame, the upper end of the valve rotating rod is connected with a first gear in the external frame, and one side of the first gear is rotatably provided with a second gear in an engaged mode; a third gear is arranged below the second gear, a top plate is arranged above the external frame, a sliding block is arranged above the top plate in a sliding mode, and a sliding plate is arranged in the sliding block in a sliding mode. Through the arrangement of structures such as the second gear, the device controls the second gear and the third gear to drive the first gear to rotate in a meshed mode, the opening speed and the closing speed of the valve are adjusted, and when the valve rotating rod needs to be driven by a driving gear with large torque, the valve rotating rod can be driven by the driving gear with large torque. And a large-torque gear can be converted for transmission.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field especially relates to a valve drive device. BACKGROUND

[0002] The valve drive device is a very important field device in the industrial process control system, and is widely used in the fields of electric power, metallurgy, petroleum and chemical industry. The valve drive device is a device for implementing the opening and closing operation of the valve by using external force, so that the operation process of the valve is more labor-saving and rapid.

[0003] The valve drive device disclosed in patent application No. CN202223212042.0 comprises an adjusting cylinder, a plurality of sealing plates symmetrically inserted into the top end of the outer side wall of the adjusting cylinder, and a rotating disc rotating against the top end of the adjusting cylinder. A valve rod is fixedly provided in the center of the rotating disc. A lead screw is rotatably connected to the end of the sealing plate away from the adjusting cylinder. A sliding ring is slidably sleeved on the lead screw. A rack is connected to the side wall of the sliding ring. The plurality of racks are rotatably connected to the rotating disc. The utility model drives the lead screw to rotate to force the sliding ring to slide along the direction of the lead screw, thereby driving the rack to slide at the top end of the sealing plate. The rotating connection between the rack and the rotating disc drives the rotating disc to rotate, thereby driving the valve rod fixedly sleeved in the rotating disc to rotate, finally realizing the opening and closing of the valve. The sliding of the sliding ring drives the sliding of the rack to realize the rotation of the rotating disc, replacing the traditional wrench directly rotating the valve rod, without the need for a long force arm, and only using in the small space of the valve to effectively complete the manual driving of the valve.

[0004] In the prior art, the lead screw and the rack are provided to replace the traditional wrench to control the opening and closing of the valve, improving the convenience of opening the valve in a small space. However, there are still some deficiencies. First, the existing valve device is driven by manpower, which is only suitable for valves with small torque required for opening. If a large valve is encountered, the manual operation device cannot quickly open the valve. Moreover, in some chemical fields, the valve often needs to be quickly opened and closed, so the valve in the prior art has certain deficiencies.

[0005] Furthermore, in some specific use environments, the valve needs to be in a closed or open state for a long time. When the valve needs to be opened or closed, the valve rotating rod has been in a stationary state for a long time, and rust may occur between the rotating rod and the valve. At this time, the valve needs to be opened by first removing the rust from the rotating rod and then using a large-torque external driving source to rotate the valve rod. INVENTION CONTENTS

[0006] The utility model discloses in order to overcome the prior art's insufficient, provide a valve drive arrangement. The utility model discloses through the second gear and third gear etc. The structure's setting makes the device through the control second gear and third gear respectively drive first gear meshing rotation, makes the valve's opening and the closing speed get the regulation, and when the rust mark is produced between valve rotating rod and valve body because of long -time relative static, can use the drive gear of greater torque and drive, through the long groove and oil tank etc. The structure is set, makes the rust mark when between valve rotating rod and valve body, and quantitative pump can deliver the rust removal oil in the oil tank inside to the gap between valve rotating rod and valve body, thereby helping the valve's opening, effectively improved the valve opening's efficiency.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a valve drive arrangement, including valve body, the valve core connection of valve body is provided with valve rotating rod, the outside of valve body is provided with external frame, valve rotating rod and external frame rotation connection, the upper end of valve rotating rod is connected with first gear in the inside of external frame and is provided, the first gear one side is provided with second gear and rotates and is engaged, the below of second gear is provided with third gear, the above of external frame is provided with top plate, the above of top plate is provided with sliding block and slides, the inside of sliding block is provided with sliding plate and slides, the end face of sliding plate is provided with second motor, and the output of second motor passes through sliding block and is fixedly connected with the end face of second gear.

[0008] Optionally, the inside bottom surface of the external frame is provided with a long groove.

[0009] Optionally, the side of the external frame is provided with an oil tank, the outside of the oil tank is provided with a quantitative pump in communication, and the output end of the quantitative pump and the long groove are provided with an oil pipe in communication.

[0010] Optionally, the end face of the top plate is provided with a sliding frame, the sliding frame is slidably connected with the sliding block, and the side of the sliding frame is provided with an electric push cylinder, the output end of the electric push cylinder is fixedly connected with the side of the sliding block through the sliding frame.

[0011] Optionally, a plurality of lead screws are rotatably arranged in the sliding block, and each lead screw is rotatably connected with the sliding plate.

[0012] Optionally, a plurality of first motors are arranged on the upper end face of the sliding block, and the output end of each first motor is fixedly connected with one end of the lead screw through the sliding block.

[0013] Optionally, a limiting long hole is arranged in the top plate, and the limiting long hole is slidably connected with the output shaft of the second motor.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) The utility model arranges the second gear, the third gear and the sliding block, etc., so that the device drives the first gear to mesh and rotate by controlling the second gear and the third gear respectively, so that the speed of opening and closing of the valve is adjusted. Moreover, when the valve stem and the valve body are relatively stationary for a long time and rust is generated, a driving gear with a larger torque is required for driving. At this time, the third gear can be selected to drive the first gear, thereby realizing the opening or closing of the valve, which effectively improves the practicality of the valve.

[0016] (2) The utility model provides a long groove, an oil storage tank, a metering pump and other structures, so that when rust occurs between the valve stem and the valve body, the metering pump can transport the rust removal oil inside the oil storage tank to the gap between the valve stem and the valve body, thereby helping to open the valve and effectively improving the efficiency of valve opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 for Figure 2 A three-dimensional cross-section at AA in the middle;

[0020] Figure 4 for Figure 2 A three-dimensional cross-section of the middle BB;

[0021] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;

[0022] Figure 6 for Figure 3 A partial enlarged view of point D in the middle;

[0023] Figure 7 for Figure 3 A partial enlarged view of point E in the middle.

[0024] In the figure: valve body 10, valve rotating rod 11, external frame 12, first gear 13, second gear 14, third gear 15, limit long hole 16, sliding frame 18, sliding block 19, sliding plate 20, screw rod 21, first motor 22, second motor 23, electric push cylinder 24, top plate 25, long groove 26, oil storage tank 27, metering pump 28, oil pipeline 29. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Embodiment one:

[0027] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , a valve driving device, comprising a valve body 10, a valve core of the valve body 10 is connected with a valve rotating rod 11, an outer frame 12 is arranged on the outer side of the valve body 10, the valve rotating rod 11 and the outer frame 12 are rotationally connected, a first gear 13 is rotationally arranged on the upper end of the valve rotating rod 11 inside the outer frame 12, a second gear 14 is rotationally arranged on one side of the first gear 13, a third gear 15 is arranged below the second gear 14, a top plate 25 is arranged above the outer frame 12, a sliding block 19 is slidingly arranged above the top plate 25, a sliding plate 20 is slidingly arranged inside the sliding block 19, a second motor 23 is arranged on the end face of the sliding plate 20, and the output end of the second motor 23 is fixedly connected with the end face of the second gear 14 through the sliding block 19.

[0028] Specifically, the diameter of the second gear 14 is greater than the diameter of the third gear 15, when the first gear 13 is driven to rotate by the second gear 14, the rotation speed of the valve rotating rod 11 is increased, thereby increasing the opening speed of the valve; when the first gear 13 is driven to rotate by the third gear 15, the torque of the first gear 13 driven to rotate by the third gear 15 is increased, thereby solving the problem that the valve rotating rod 11 is difficult to rotate due to various reasons, and being more conducive to the opening and closing of the valve.

[0029] The second motor 23 is a common motor, which is prior art and will not be described in detail, the output end of the second motor 23 can drive the second gear 14 and the third gear 15 to rotate, thereby driving the first gear 13 and the valve rotating rod 11 to rotate, forming the opening and closing of the valve.

[0030] The sliding block 19 is slidingly arranged, which can drive the second motor 23 to move horizontally, thereby driving the second gear 14 and the third gear 15 to move horizontally, the sliding plate 20 is slidingly arranged, which can drive the second motor 23 to move vertically, thereby driving the second gear 14 and the third gear 15 to move vertically, thereby forming the conversion of the meshing transmission of the first gear 13 by the second gear 14 and the third gear 15 respectively, and further realizing the rapid opening and closing of the valve rotating rod 11, and the large torque required to drive the valve rotating rod 11 to rotate when the valve rotating rod 11 is rotated again after being in a stationary state for a long time, effectively improving the practicability and opening and closing efficiency of the device.

[0031] Further, as shown in Figure 4 and Figure 5 , a limiting long hole 16 is arranged in the top plate 25, and the limiting long hole 16 is slidingly connected with the output shaft of the second motor 23.

[0032] Specifically, the length of the limiting long hole 16 is equal to the radius difference of the second gear 14 and the third gear 15, the setting of the limiting long hole 16 can limit the sliding distance of the sliding block 19 when the second motor 23, the second gear 14 and the third gear 15 are driven to slide horizontally, effectively improving the practicability of the device.

[0033] Further, as shown in Figure 5 and Figure 7 , the inner bottom surface of the external frame 12 is provided with a long groove 26, one side of the external frame 12 is provided with an oil storage tank 27, the outside of the oil storage tank 27 is communicated and provided with a quantitative pump 28, and the output end of the quantitative pump 28 and the long groove 26 are communicated and provided with an oil delivery pipe 29.

[0034] Specifically, the quantitative pump 28 is a common quantitative pump, which can quantitatively pump the rust removal oil in the oil storage tank 27 into the long groove 26, and the rust removal oil flows from the long groove 26 to the gap between the valve rotating rod 11 and the valve, which plays a role of lubricating and rust removal when the valve rotating rod 11 rotates, avoids the valve being in a state for a long time, and reduces the rust between the valve rotating rod 11 and the valve body.

[0035] Further, as shown in Figure 2 and Figure 6 , the end surface of the top plate 25 is provided with a sliding frame 18, the sliding frame 18 is slidably connected with the sliding block 19, and the sliding frame 18 is provided with an electric push cylinder 24 on one side, and the output end of the electric push cylinder 24 is fixedly connected with one side of the sliding block 19 through the sliding frame 18.

[0036] Specifically, the electric push cylinder 24 is a common electric push cylinder, which is a prior art, and the output end of the electric push cylinder 24 drives the sliding block 19 to slide horizontally.

[0037] Further, as shown in Figure 6 , a plurality of lead screws 21 are rotatably arranged in the sliding block 19, each lead screw 21 is rotatably connected with a sliding plate 20, and a plurality of first motors 22 are arranged on the upper end surface of the sliding block 19, and the output end of each first motor 22 is fixedly connected with one end of the lead screw 21 through the sliding block 19.

[0038] Specifically, the first motor 22 is a common motor, the output end of the first motor 22 drives the lead screw 21 to rotate, and the rotation of the lead screw 21 makes the sliding plate 20 move vertically up and down, so that the sliding plate 20 drives the second motor 23 to move vertically up and down.

[0039] When the device needs to engage transmission to the valve rotating rod 11 with large torque, first, multiple first motors 22 are started at the same time, the output end of the first motor 22 drives the screw rod 21 to rotate, thereby driving the sliding plate 20 to move vertically upward, the up and down movement distance of the sliding plate 20 is just the thickness of the second gear 14 and the third gear 15, then the electric push cylinder 24 is started, the output end of the electric push cylinder 24 drives the sliding block 19 to move horizontally, due to the setting of the limiting long hole 16, when the sliding block 19 drives the second motor 23 to move horizontally, the third gear 15 and the first gear 13 can be engaged, at this time, the second motor 23 is started, the output end of the second motor 23 drives the third gear 15 to rotate, the third gear 15 drives the first gear 13 to rotate, thereby driving the valve rotating rod 11 to rotate, forming the opening or closing of the valve.

[0040] When the device needs to open and close the valve quickly, first, the electric push cylinder 24 is started, the output end of the electric push cylinder 24 drives the sliding block 19 to move horizontally, then multiple first motors 22 are started, the output end of the first motor 22 drives the screw rod 21 to rotate, the rotation of the screw rod 21 drives the sliding plate 20 to move vertically downward, forming the engagement of the second gear 14 and the first gear 13, at this time, the second motor 23 is started, the output end of the second motor 23 drives the second gear 14 to rotate, the second gear 14 drives the first gear 13 to rotate, the first gear 13 drives the valve rotating rod 11 to rotate, thereby forming the quick opening or closing of the valve.

[0041] As used in the specification and claims, certain terminology is used to refer to specific components. Those of ordinary skill in the art will appreciate that different manufacturers can refer to the same component by different names. The specification and claims do not distinguish components based on different names but rather based on the functional difference of the components. As used throughout the specification and claims, "comprising" is intended to be an open term, thus comprising, "including, "containing", "having" or "including" is intended to be permissive, such that a process or method that "comprises", "includes", "contains", "has" or "including" one step can include additional steps. "Substantially" means within acceptable limits, which can vary based on the technical effects being achieved.

[0042] It should be noted that the terms "comprising", "including", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that "comprises", "includes" or "comprises" a list of steps does not necessarily exclude additional steps from the process or method, or that additional steps are inherent to the process or method. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the product or system including the element.

[0043] The foregoing description illustrates and describes several preferred embodiments of the present application. However, it is to be understood that the application is not limited to the precise forms described, and that changes can be made therein without departing from the scope of the present application. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. Therefore, the specification and examples are to be considered exemplary only, with a true scope and spirit of the application being indicated by the following claims.

Claims

1. A valve driving device, comprising a valve body (10), wherein a valve core of the valve body (10) is connected to a valve rod (11), characterized in that: An external frame (12) is provided on the outside of the valve body (10), and the valve rotating rod (11) and the external frame (12) are rotatably connected. The upper end of the valve rotating rod (11) is connected to the inside of the external frame (12) and is provided with a first gear (13). A second gear (14) is provided on one side of the first gear (13) for meshing and rotation. A third gear (15) is provided below the second gear (14). A top plate (25) is provided above the external frame (12), and a sliding block (19) is provided above the top plate (25) for sliding. A sliding plate (20) is provided inside the sliding block (19) for sliding. A second motor (23) is provided on the end face of the sliding plate (20), and the output end of the second motor (23) passes through the sliding block (19) and is fixedly connected to the end face of the second gear (14).

2. A valve driving device according to claim 1, characterized in that: The inner bottom surface of the external frame (12) is provided with a long groove (26).

3. A valve driving device according to claim 2, characterized in that: An oil storage tank (27) is provided on one side of the external frame (12), a metering pump (28) is provided outside the oil storage tank (27), and an oil delivery pipe (29) is provided between the output end of the metering pump (28) and the long groove (26).

4. A valve driving device according to claim 1, characterized in that: A sliding frame (18) is provided on the end surface of the top plate (25), and the sliding frame (18) is slidably connected to the sliding block (19). An electric push cylinder (24) is provided on one side of the sliding frame (18), and the output end of the electric push cylinder (24) passes through the sliding frame (18) and is fixedly connected to one side of the sliding block (19).

5. A valve driving device according to claim 4, characterized in that: A plurality of screw rods (21) are rotatably arranged inside the sliding block (19), and each of the screw rods (21) is rotatably connected to the sliding plate (20).

6. A valve driving device according to claim 5, characterized in that: A plurality of first motors (22) are provided on the upper end surface of the sliding block (19), and the output end of each first motor (22) passes through the sliding block (19) and is fixedly connected to one end of the screw rod (21).

7. The valve driving device according to claim 1, characterized in that: A limited long hole (16) is provided in the top plate (25), and the limited long hole (16) is slidably connected to the output shaft of the second motor (23).

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