Precise grinding device for sealing surface of oil exploitation valve
The grinding block, driven by a servo motor for angle adjustment and controlled by an electric telescopic rod, solves the problem of precision grinding of the sealing surface of oil extraction valves after wear, achieving efficient and accurate sealing surface repair and improving sealing performance and grinding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU WANFANG METAL PROD CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the sealing surfaces of oil extraction valves are prone to wear after long-term use, resulting in a decline in sealing performance. Traditional grinding methods are inefficient and cannot adapt to grinding requirements of different shapes and angles.
The grinding block, driven by a servo motor and controlled by an electric telescopic rod, enables precise angle adjustment and high-precision grinding. Combined with high-hardness grinding materials, it ensures improved surface smoothness and sealing performance.
It achieves high-precision grinding of valve sealing surfaces, improves sealing performance and grinding efficiency, ensures the flatness and smoothness of sealing surfaces, and avoids grinding dead corners.
Smart Images

Figure CN224182791U_ABST
Abstract
Description
Precision grinding device for oil extraction valve sealing surfaces Technical Field
[0001] This utility model relates to the field of oil extraction equipment manufacturing and maintenance technology, and in particular to a precision grinding device for the sealing surface of oil extraction valves. Background Technology
[0002] In the oil extraction industry, valves are key components controlling oil flow, and their sealing performance directly affects the safety and efficiency of oil extraction operations. During long-term use, valve sealing surfaces are prone to wear, scratches, pits, and other defects due to erosion and corrosion from oil media and frequent opening and closing operations, leading to decreased sealing performance and serious problems such as oil leaks. To restore the sealing performance of valves, it is usually necessary to grind and repair the valve sealing surfaces. Traditional methods of valve sealing surface grinding often involve manual grinding or simple mechanical grinding equipment. Manual grinding relies on the operator's experience and skills, resulting in low grinding efficiency, high labor intensity, and difficulty in ensuring grinding accuracy, easily leading to substandard flatness and smoothness of the sealing surface. While simple mechanical grinding equipment improves grinding efficiency to some extent, it lacks precise angle adjustment capabilities and cannot adapt to the grinding needs of valve sealing surfaces with different shapes and angles. Therefore, this application proposes a precision grinding device for oil extraction valve sealing surfaces. Summary of the Invention
[0003] The purpose of this invention is to address the problem in the prior art that grinding is inaccurate and cannot meet the grinding requirements of valve sealing surfaces with different shapes and angles, and to propose a precision grinding device for oil extraction valve sealing surfaces.
[0004] The technical solution of this utility model: a precision grinding device for sealing surfaces of oil extraction valves, including a base and an angle tilting mechanism located at the top of the base. The angle tilting mechanism includes support plates fixed to both sides of the top of the base. A servo motor is fixedly connected inside the support plate on one side. A motor base is fixedly connected to the output end of the servo motor. A bottom fixing seat is fixedly connected to the side of the motor base away from the servo motor. A motor drive rod is rotatably connected to the center of the motor base.
[0005] A grinding mechanism is provided at the top of the bottom fixing seat.
[0006] Optionally, the outer wall of the motor drive rod has a bottom fixing seat through it, and the end of the motor drive rod away from the motor seat is fixedly connected to a limiting rotating seat, which is fixedly connected to the inner wall of the support plate on the other side.
[0007] Optionally, the grinding mechanism includes extension blocks fixed to both sides of the outer wall of the bottom fixing seat, and a fixing seat is fixedly connected to one end of the two extension blocks away from the bottom fixing seat. A plurality of top sliding rods are slidably connected to the top of the fixing seat.
[0008] Optionally, each of the multiple top sliding rods has a telescopic seat slidably connected to its outer wall, and two of the telescopic seats have a top pushing block fixedly connected to their top ends, and two of the top pushing blocks have an electric telescopic rod fixedly connected to their top ends.
[0009] Optionally, a support frame is fixedly connected to the top of each of the two electric telescopic rods, and one side of the bottom end of the support frame is fixedly connected to one side of the outer wall of the extension block.
[0010] Optionally, a rotating shaft is rotatably connected to the inner wall of the bottom fixing seat, and a top fixing plate is fixedly connected to the top end of the rotating shaft.
[0011] Optionally, each side of the telescopic seat is slidably connected to a telescopic slider, and the ends of the two telescopic sliders away from the telescopic seat are fixedly connected to a grinding block.
[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects: This device achieves precise angle adjustment of the grinding mechanism through a servo motor, which can accurately match valve sealing surfaces at different angles. At the same time, the electric telescopic rod and telescopic slider precisely control the movement of the grinding block, ensuring high-precision grinding of the valve sealing surface, greatly improving the smoothness and effectively improving the sealing performance of the valve. Attached Figure Description
[0013] Figure 1 is a three-dimensional structural schematic diagram of a precision grinding device for the sealing surface of oil extraction valves;
[0014] Figure 2 is a multi-angle three-dimensional structural diagram of a precision grinding device for the sealing surface of oil extraction valves.
[0015] Figure 3 is a schematic diagram of the bottom fixing seat connection structure of the precision grinding device for the sealing surface of oil extraction valves.
[0016] Figure 4 is a schematic diagram of the right-side cross-sectional structure of a precision grinding device for the sealing surface of oil extraction valves.
[0017] Reference numerals in the attached diagram: 1. Base; 2. Support plate; 3. Motor base; 4. Servo motor; 5. Motor drive rod; 6. Limiting rotating seat; 7. Bottom fixed seat; 8. Extension block; 9. Fixed seat; 10. Top sliding rod; 11. Telescopic seat; 12. Top pushing block; 13. Electric telescopic rod; 14. Grinding block; 15. Telescopic slider; 16. Support frame; 17. Top fixed plate; 18. Rotating shaft. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Example 1
[0025] As shown in Figures 1 and 2, the precision grinding device for the sealing surface of oil extraction valves proposed in this utility model includes a base 1 and an angle tilting mechanism located at the top of the base 1. The angle tilting mechanism includes support plates 2 fixed to both sides of the top of the base 1. A servo motor 4 is fixedly connected inside the support plate 2 on one side. A motor base 3 is fixedly connected to the output end of the servo motor 4. A bottom fixing seat 7 is fixedly connected to the side of the motor base 3 away from the servo motor 4. A motor drive rod 5 is rotatably connected to the center of the motor base 3. The bottom fixing seat 7 passes through the outer wall of the motor drive rod 5. A limit rotating seat 6 is fixedly connected to the end of the motor drive rod 5 away from the motor base 3. The limit rotating seat 6 is fixedly connected to the inner wall of the support plate 2 on the other side. By setting the base 1 as the basic support component of the device, it is integrally formed with high-strength cast iron material, which has good rigidity and stability and can withstand the weight of the entire device during operation and the force generated during grinding, ensuring that the device remains stable during grinding operations and avoiding the impact of shaking on grinding accuracy. Adjustable anchor bolts are set at the bottom of the base 1, which can be leveled according to different ground environments to ensure that the device is in a horizontal state for the angle tilting mechanism. The support plates 2, fixed to both sides of the top of the base 1, are made of high-strength steel plates and provide a stable foundation for the precise operation of the grinding mechanism. They provide mounting support for components such as the servo motor 4 and motor base 3. The servo motor 4 is fixedly connected inside the support plate 2 on one side. The output end of the servo motor 4 is connected to the motor base 3. The motor base 3 connects and supports the motor drive rod 5. Its structural design ensures that the motor drive rod 5 can rotate stably. The motor drive rod 5 passes through the bottom fixed seat 7, with one end rotatably connected to the motor base 3 and the other end fixedly connected to the support plate 2 on the other side through the limiting rotation seat 6. The inner wall and the limiting rotating seat 6 limit and support the motor drive rod 5, ensuring that the motor drive rod 5 remains stable during rotation and avoiding wobbling or deviation. When the servo motor 4 starts, it drives the motor drive rod 5 to rotate, thereby causing the bottom fixed seat 7 to tilt around the axis of the motor drive rod 5. Through the precise cooperation between the servo motor 4 and the control system, the grinding mechanism can be adjusted to any angle to meet the grinding requirements of oil extraction valve sealing surfaces of different shapes and angles, ensuring that the grinding direction can be precisely matched with the angle of the valve sealing surface, and improving the accuracy and effectiveness of grinding.
[0026] Additionally, as shown in Figures 2, 3, and 4, a grinding mechanism is provided at the top of the bottom fixing seat 7. The grinding mechanism includes extension blocks 8 fixed to both sides of the outer wall of the bottom fixing seat 7. A fixing seat 9 is fixedly connected to the end of each extension block 8 away from the bottom fixing seat 7. Multiple top sliding rods 10 are slidably connected to the top of the fixing seat 9. Telescopic seats 11 are slidably connected to the outer walls of each of the multiple top sliding rods 10. Top pushing blocks 12 are fixedly connected to the top of each of the two telescopic seats 11. Electric telescopic rods 13 are fixedly connected to the top of each of the two top pushing blocks 12. A support frame 16 is fixedly connected to the top of each of the two electric telescopic rods 13. One side of the bottom end of the support frame 16 is fixedly connected to one side of the outer wall of the extension block 8. A rotating shaft 18 is rotatably connected to the inner wall of the bottom fixing seat 7. The top of the telescopic base 11 is fixedly connected to a top fixing plate 17. Telescopic sliders 15 are slidably connected to one side of each telescopic base 11. Grinding blocks 14 are fixedly connected to the ends of the two telescopic sliders 15 away from the telescopic base 11. The bottom fixing base 7 serves as the basic mounting component of the grinding mechanism. Extension blocks 8 fixed on both sides of its outer wall provide mounting support points for components such as the fixing base 9 and support frame 16, enhancing the overall structural strength of the grinding mechanism. The ends of the two extension blocks 8 away from the bottom fixing base 7 are fixedly connected to the fixing base 9. Multiple top sliding rods 10 are provided at the top of the top of the extension blocks 9 to provide sliding guidance for the telescopic base 11. The top sliding rods 10 use high-precision linear optical axes to ensure that the telescopic base 11 slides smoothly and without jamming. The multiple top sliding rods 10... The telescopic seat 11, which is slidably connected to the wall, can slide freely along a straight line on the top sliding rod 10. The top push block 12, which is fixedly connected to the top of the two telescopic seats 11, is connected to the electric telescopic rod 13. The electric telescopic rod 13 is a high-precision electric push rod, which can precisely adjust the telescopic length and thrust according to the grinding requirements. When the electric telescopic rod 13 extends or retracts, it drives the top push block 12 and the telescopic seat 11 to move linearly on the top sliding rod 10, thereby realizing the horizontal position adjustment of the grinding block 14 and the grinding pressure control. The telescopic slider 15, which is slidably connected to one side of the telescopic seat 11, can slide on the telescopic seat 11 in a direction perpendicular to the top sliding rod 10. The grinding block 14, which is fixedly connected to the end of the two telescopic sliders 15 away from the telescopic seat 11, is made of high hardness. Made of highly wear-resistant abrasive materials, such as silicon carbide and diamond, the surface of the grinding block 14 is finely processed and has a specific grinding texture. By controlling the sliding of the telescopic slider 15 on the telescopic seat 11, the vertical position of the grinding block 14 can be finely adjusted to ensure that the grinding block 14 can closely fit the valve sealing surface and improve the grinding effect. The rotating shaft 18 is rotatably connected to the inner wall of the bottom fixed seat 7, and the top fixed plate 17 is fixedly connected to the top end to fix the oil extraction valve to be ground. The rotating shaft 18 is supported by high-precision bearings and rotates flexibly. During the grinding process, the valve can rotate with the rotating shaft 18, so that the grinding block 14 can perform all-round and uniform grinding on the valve sealing surface, avoiding grinding dead corners and further improving the uniformity and precision of grinding.
[0027] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A precision grinding device for the sealing surface of an oil extraction valve, comprising a base (1) and an angle tilting mechanism located at the top of the base (1), characterized in that: The tilting mechanism includes support plates (2) fixed to both sides of the top of the base (1). A servo motor (4) is fixedly connected inside the support plate (2) on one side. A motor base (3) is fixedly connected to the output end of the servo motor (4). A bottom fixing seat (7) is fixedly connected to the side of the motor base (3) away from the servo motor (4). A motor drive rod (5) is rotatably connected to the center of the motor base (3). A grinding mechanism is provided at the top of the bottom fixing seat (7).
2. The precision grinding device for the sealing surface of oil extraction valves according to claim 1, characterized in that, The outer wall of the motor drive rod (5) is penetrated by a bottom fixing seat (7), and the end of the motor drive rod (5) away from the motor seat (3) is fixedly connected to a limiting rotating seat (6), which is fixedly connected to the inner wall of the support plate (2) on the other side.
3. The precision grinding device for the sealing surface of oil extraction valves according to claim 1, characterized in that, The grinding mechanism includes extension blocks (8) fixed on both sides of the outer wall of the bottom fixing seat (7). The two extension blocks (8) are fixedly connected to a fixing seat (9) at one end away from the bottom fixing seat (7). Multiple top sliding rods (10) are slidably connected to the top of the fixing seat (9).
4. The precision grinding device for the sealing surface of oil extraction valves according to claim 3, characterized in that, The outer walls of the multiple top sliding rods (10) are slidably connected to telescopic seats (11), the top ends of the two telescopic seats (11) are fixedly connected to top push blocks (12), and the top ends of the two top push blocks (12) are fixedly connected to electric telescopic rods (13).
5. The precision grinding device for the sealing surface of oil extraction valves according to claim 4, characterized in that, The top ends of the two electric telescopic rods (13) are fixedly connected to a support frame (16), and one side of the bottom end of the support frame (16) is fixedly connected to one side of the outer wall of the extension block (8).
6. The precision grinding device for the sealing surface of oil extraction valves according to claim 1, characterized in that, The inner wall of the bottom fixing seat (7) is rotatably connected to a rotating shaft (18), and the top end of the rotating shaft (18) is fixedly connected to a top fixing plate (17).
7. The precision grinding device for the sealing surface of oil extraction valves according to claim 4, characterized in that, One side of each telescopic seat (11) is slidably connected to a telescopic slider (15), and the ends of the two telescopic sliders (15) away from the telescopic seat (11) are fixedly connected to a grinding block (14).