Gate sleeve executing mechanism for conical valve

Abstract

The utility model relates to a gate sleeve actuating mechanism for a conical valve, which comprises a gate sleeve and an actuating component for driving the gate sleeve to linearly move, and is characterized in that the actuating component comprises a valve rod connected with a conical valve driving unit, a lead screw section is arranged on the valve rod in the conical valve, a lead screw nut is assembled on the lead screw section, and the valve rod is connected with the valve rod. The lead screw nut is movably installed in the nut clamping sleeve, the lead screw nut is provided with a limiting part for preventing the lead screw from rotating along with the lead screw, and when the limiting part abuts against the inner wall of the nut clamping sleeve in the rotation process of the lead screw in the rotation circumferential direction of the lead screw nut, the lead screw nut is static relative to the nut clamping sleeve; the nut clamping sleeve is fixedly connected with the outer wall of the brake sleeve. In addition, the structural design of the executing mechanism is successfully simplified, static control is achieved by integrating the functions of the lead screw nut and the nut clamping sleeve and ingeniously utilizing the limiting part, the installation problem in the traditional design is solved, the number of parts is effectively reduced, manufacturing cost is reduced, and meanwhile the maintenance process is simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the conical valve, especially relates to a conical valve gate sleeve actuating mechanism. BACKGROUND

[0002] In the prior art of the conical valve gate sleeve actuating mechanism, it usually comprises a screw nut chamber and a screw nut installed in the screw nut chamber and matched with the valve rod. Figure 4 In this design structure, the screw nut is designed to always remain stationary relative to the screw nut chamber, and cannot be effectively adjusted in position. In addition, in order to ensure that the screw nut does not come off the screw nut chamber, a pressure sleeve is additionally provided, which not only increases the number of parts of the entire actuating mechanism, but also makes the structure more complex.

[0003] A particularly prominent problem is that the distance between the valve rod hole of the conical valve and the valve rod nut is relatively long, which often leads to large error accumulation in actual application. During the installation of the valve rod to the gate sleeve actuating mechanism, the alignment of the valve rod and the screw nut becomes extremely difficult due to the unadjustable position of the screw nut, thereby greatly increasing the installation difficulty and time cost. This design not only affects the installation efficiency, but also may reduce the stability and reliability of the equipment during use due to misalignment.

[0004] Therefore, in view of the problems of unadjustable position of the gate sleeve nut, too many parts and difficult installation in the prior art, an improved conical valve gate sleeve actuating mechanism is urgently needed. SUMMARY

[0005] In view of the problems of the prior art, the utility model provides an improved conical valve gate sleeve actuating mechanism to solve the above problems, improve the installation efficiency, reduce the installation difficulty, and simplify the structure of the actuating mechanism, thereby improving the performance and reliability of the entire conical valve system.

[0006] The utility model is realized in this way, a kind of conical valve gate sleeve actuating mechanism, including gate sleeve, the execution component of the linear motion of gate sleeve, the execution component includes the valve rod connected with conical valve driving unit, the valve rod is equipped with screw segment in conical valve, screw segment is equipped with screw nut, screw nut is movably installed in nut sleeve, limiting portion that prevents rotating with screw nut is equipped on screw nut, when limiting portion and nut sleeve inner wall abut when screw nut rotates in the circumferential direction of screw nut, screw nut is stationary relative to nut sleeve;The outer wall of nut sleeve is fixedly connected with gate sleeve.

[0007] Further preferably, the limiting portion is provided at one end of the screw nut.

[0008] Further preferably, the limiting part is in an elliptical or square structure.

[0009] Further preferably, the nut sleeve comprises at least two parallel vertical plates, with a threaded rod passing hole on each vertical plate, the distance between the two vertical plates is not less than the length of the threaded rod nut, and the height of the vertical plates is not greater than the maximum outer edge length of the limiting part of the threaded rod nut.

[0010] Further preferably, the lower end of the two parallel vertical plates is welded with a bottom plate that is in line with the outer wall of the sleeve.

[0011] The utility model has the advantages and technical effects that: first, a great breakthrough is made in the convenience of installation. By allowing the threaded rod nut to be movably installed in the nut sleeve, the utility model provides greater flexibility in the installation process. Regardless of how the distance between the valve rod hole and the valve rod nut changes, accurate alignment can be achieved by easily adjusting the position of the threaded rod nut, which significantly improves the installation efficiency and greatly reduces the technical difficulty in the installation process, thereby bringing great convenience to on-site installation and later maintenance.

[0012] Secondly, the utility model performs outstandingly in enhancing the stability and reliability of the equipment. The limiting part specially designed on the threaded rod nut can effectively prevent it from following the movement when the threaded rod rotates, and through the close abutment with the inner wall of the nut sleeve, the absolute stillness of the threaded rod nut in the circumferential direction is ensured. This innovative design fundamentally eliminates the error accumulation caused by the rotation of the threaded rod nut, greatly improving the running stability and long-term reliability of the entire actuator.

[0013] Finally, the utility model also successfully simplifies the structural design of the actuator, maximizing the cost-effectiveness. By integrating the functions of the threaded rod nut and the nut sleeve, and skillfully utilizing the limiting part to achieve stillness control, not only does it solve the installation problem in traditional design, but it also effectively reduces the number of parts and the manufacturing cost, simplifies the maintenance process, and lays a solid foundation for the widespread application of the sleeve actuator for conical valves. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 is Figure 1 a three-dimensional structural schematic diagram;

[0016] Figure 3 is a structural schematic diagram of a threaded rod nut;

[0017] Figure 4 is a structural schematic diagram of the prior art.

[0018] In the figure: 1, the gate sleeve; 2, the execution assembly; 2-1, the valve rod; 2-10, the screw segment; 2-2, the screw nut; 2-20, the limiting part; 2-3, the nut sleeve; 2-30, the parallel vertical plate; 2-31, the screw passing hole; 2-32, the top plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0020] Please refer to Figures 1 to 3 A gate sleeve execution mechanism for a conical valve, comprising a gate sleeve 1 and an execution assembly 2 for driving the gate sleeve to move linearly, wherein the execution assembly comprises a valve rod 2-1 connected with a conical valve driving unit, a screw segment 2-10 provided on the valve rod in the conical valve, a screw nut 2-2 fitted on the screw segment, the screw nut movably installed in a nut sleeve 2-3, a limiting part 2-20 provided on the screw nut to prevent the screw nut from rotating with the screw, and the limiting part in contact with the inner wall of the nut sleeve when the screw nut rotates in the circumferential direction of the screw nut, so that the screw nut is stationary relative to the nut sleeve; and the nut sleeve is fixedly connected to the outer wall of the gate sleeve 1.

[0021] The technical effects mainly include the following aspects:

[0022] 1. Improved installation efficiency and reduced installation difficulty: in the utility model, the screw nut 2-2 is designed to be movably installed in the nut sleeve 2-3, which allows the position of the screw nut to be adjusted within a certain range. When installing the valve rod 2-1 into the gate sleeve execution mechanism, even if the distance between the valve rod hole and the valve rod nut is long, the alignment can be easily achieved by adjusting the position of the screw nut, thereby greatly improving the installation efficiency and reducing the installation difficulty.

[0023] 2. Enhanced equipment stability and reliability: since the screw nut 2-2 is provided with the limiting part 2-20 to prevent it from rotating with the screw, the limiting part will be in contact with the inner wall of the nut sleeve during the rotation of the screw nut in the circumferential direction, ensuring that the screw nut is stationary relative to the nut sleeve. This design effectively avoids the accumulation of errors caused by the rotation of the screw nut with the screw, thereby enhancing the stability and reliability of the equipment.

[0024] 3. Simplified execution mechanism structure: the utility model ingeniously designs the screw nut to be movably installed in the nut sleeve and stationary through the limiting part, which not only solves the installation difficulty problem, but also simplifies the structure of the execution mechanism, reduces the number of parts, and reduces the manufacturing cost and maintenance difficulty.

[0025] Further preferably, the limiting part is arranged at one end of the screw nut. Arranging the limiting part at one end of the screw nut can make the structure of the screw nut simpler, easier to manufacture and process. This design reduces additional complex structures, reduces manufacturing costs, and is conducive to improving production efficiency. The limiting part is located at one end of the screw nut, making it easier to position and adjust the screw nut during installation. The operator can visually see the position of the limiting part, thereby ensuring the correct installation and alignment of the screw nut in the nut sleeve, reducing installation errors and debugging time. The limiting part serves as the contact point between the screw nut and the nut sleeve. When the screw rotates, the limiting part abuts the inner wall of the nut sleeve to prevent the screw nut from rotating with the screw. Since the limiting part is located at one end, it can more effectively withstand and distribute the rotating force, enhancing the stability of the screw nut in the nut sleeve and reducing wear and looseness caused by rotation, thereby improving the reliability of the actuator.

[0026] Further preferably, the limiting part is in the shape of an ellipse or a square. Preferably, the limiting part is in the shape of a square.

[0027] Further preferably, the nut sleeve 2-3 comprises at least two parallel vertical plates 2-30, the vertical plates being provided with screw passing holes 2-31, the distance between the vertical plates being not less than the length of the screw nut, and the height of the vertical plates being not greater than the maximum outer edge length of the limiting part of the screw nut; and a top plate 2-32 is welded to the two vertical plates. This technical solution has remarkable technical effects. First, the design of the two parallel vertical plates 2-30 provides stable support and precise guidance for the screw nut 2-2, ensuring the stability of its linear motion. The moderate distance between the vertical plates ensures that the screw nut can freely shuttle without being restricted. Second, the height control of the vertical plates enables the limiting part of the screw nut to be completely accommodated in the nut sleeve, effectively preventing the screw nut from falling off or deviating during operation. Finally, the welding of the top plate 2-32 further enhances the overall structural strength of the nut sleeve, improving its durability and reliability, and providing a strong guarantee for the stable operation of the actuator for the cone valve.

[0028] Further preferably, bottom plates 2-33 that conform to the outer wall of the sleeve are welded to the lower ends of the two parallel vertical plates. This enhances the connection stability of the nut sleeve and the sleeve, ensures the integrity and consistency of the actuator during operation, and improves the reliability and durability of the equipment.

[0029] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bonnet actuator for a cone valve comprising a bonnet, an actuator assembly to impart linear motion to the bonnet, characterized in that: The execution assembly comprises a valve rod connected with the conical valve driving unit, a screw rod section is arranged in the valve rod, a screw nut is fitted on the screw rod section, the screw nut is movably arranged in a nut sleeve, a limiting part is arranged on the screw nut to prevent rotation with the screw rod, when the limiting part abuts against the inner wall of the nut sleeve during rotation of the screw rod in the circumferential direction of the screw nut, the screw nut is stationary relative to the nut sleeve; and the nut sleeve is fixedly connected to the outer wall of the bushing.

2. The cone valve bonnet actuator of claim 1 wherein: The limiting part is arranged at one end of the screw nut.

3. The cone valve bonnet actuator of claim 1 wherein: The limiting part is in an oval or square structure.

4. The cone valve bonnet actuator of claim 1 wherein: The nut sleeve comprises at least two parallel vertical plates, a screw rod through hole is arranged on the vertical plate, the distance between the vertical plates is not less than the length of the screw nut, the height of the vertical plate is not greater than the maximum outer edge length of the limiting part of the screw nut, and a top plate is welded on the two vertical plates.

5. The cone valve bonnet actuator of claim 4 wherein: A bottom plate is welded on the lower end of the two parallel vertical plates and is in conformity with the outer wall of the bushing.

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