Adjustable structure for valve seat grinding

Abstract

The utility model discloses a kind of valve seat grinding processing with easy adjusting structure, including supporting base and the limiting ring being installed on the upside of supporting base, the upside of supporting base is provided with two hydraulic actuators, the lower end outer wall inside of two hydraulic actuators is transmissionally connected with two hydraulic push rods, to butt the inner wall of valve seat opening area, the position of valve seat is clamped and fixed, the upper end outer wall between two hydraulic actuators is fixedly connected with concentration box, the outer wall of the front and rear ends of concentration box is provided with two oil pipeline connection ports, by installing detachable foot sleeve and clamping pad, when hydraulic push rod cannot position limit valve seat, detachable foot sleeve can be screwed on the lower end of hydraulic push rod, and by moving downward by hydraulic push rod, so that liquid clamping pad is attached to the upper end of valve seat, and cooperate with supporting base, position limit valve seat, make up the deficiency when hydraulic push rod acts alone, ensure that valve seat does not displace in grinding process.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to an adjustable structure for valve seat grinding. Background Technology

[0002] As a key component of various valves, the quality of the valve seat's grinding process directly affects the valve's sealing performance and service life. The adjustable structure for valve seat grinding is specifically designed to optimize the valve seat grinding process, significantly improving the accuracy, efficiency, and convenience of the grinding process.

[0003] However, the method of supporting and clamping the valve seat by using a hydraulic push rod has significant limitations. If the hydraulic push rod cannot contact the inner wall of the valve seat, it will be impossible to clamp and fix the valve seat. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable structure for valve seat grinding, so as to solve the problem mentioned in the background art that the method of supporting and clamping the inner wall of the valve seat by means of hydraulic push rod is too limited.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable structure for valve seat grinding, comprising a support base and a limiting ring installed on the upper side of the support base; Two hydraulic actuators are provided on the upper side of the support base; Two hydraulic push rods are driven to the inner wall of the lower end of each of the two hydraulic actuators, so as to abut against the inner wall of the valve seat opening area and clamp and fix the position of the valve seat. A central box is fixedly connected between the upper outer walls of the two hydraulic actuators. Two oil passage connection ports are provided on the front and rear outer walls of the central box to guide the hydraulic oil of the two hydraulic actuators to enter and exit. Each of the two hydraulic actuators is provided with two detachable foot covers on one side, and each of the two detachable foot covers is provided with a clamping pad on one side.

[0006] Preferably, the circular outer walls of the plurality of hydraulic push rods are threaded for the removable foot sleeves to be screwed and fixed, and a base plate is provided between the plurality of removable foot sleeves and the clamping pad.

[0007] Preferably, one end of each of the two hydraulic actuators is fixedly connected to a limit post for the engagement of the detachable foot sleeve, thereby limiting the placement of the detachable foot sleeve when not in use.

[0008] Preferably, a first vibration damping pad is fixedly connected to the upper outer wall of the support base, and a second vibration damping pad is fixedly connected to the upper outer wall of the first vibration damping pad.

[0009] Preferably, the upper outer wall of the second damping pad has an upward-opening groove, and an air sleeve is provided inside the groove.

[0010] Preferably, the air jacket is filled with air and is made of soft rubber material.

[0011] Preferably, a support column is fixedly connected to the lower outer wall of the support base, and a mounting base is fixedly connected to the lower outer wall of the support column.

[0012] Preferably, a fixing frame is fixedly connected to the left outer wall of the mounting base, and a drive motor is fixedly connected to the upper outer wall of the fixing frame, which is electrically connected to an external power source.

[0013] Preferably, a transmission plate is provided on the lower side of the drive motor, and a support frame is fixedly connected to the outer wall of the right end of the transmission plate to limit the fixed position of the two hydraulic actuators.

[0014] Preferably, the lower outer wall of the drive motor is fixedly connected to a drive rod that passes through the transmission plate, so as to drive the transmission plate to move up and down when rotating in different directions.

[0015] Compared with the prior art, this utility model provides an adjustable structure for valve seat grinding, which has the following advantages: 1. By installing detachable foot sleeves and clamping pads, when the hydraulic push rod cannot restrict the position of the valve seat, the detachable foot sleeves can be screwed onto the bottom of the hydraulic push rod, and the hydraulic push rod can be moved downwards to make the clamping pad fit against the upper end of the valve seat. Together with the support base, the position of the valve seat is restricted, which makes up for the shortcomings of the hydraulic push rod acting alone, ensures that the valve seat will not be displaced during the grinding process, and guarantees the accuracy of the processing.

[0016] 2. By installing the air sleeve, when the valve seat is placed on the support base, the air sleeve will be pressed down, causing the gas inside the air sleeve to flow into the recessed areas of the valve seat. This automatically fills these recessed areas, making the contact between the air sleeve and the valve seat tighter and more secure, reducing positioning deviations caused by valve seat shaking or displacement. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a valve seat grinding and adjustment structure according to the present invention.

[0018] Figure 2 This is a side view of a valve seat grinding and adjustment structure according to the present invention.

[0019] Figure 3 This is a partial structural diagram of the detachable foot cover area of ​​this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of the side cross-section of the detachable foot cover area of ​​this utility model.

[0021] Figure 5 This is a partial structural schematic diagram of the front cross-section of the gas jacket region of this utility model.

[0022] In the diagram: 1. Mounting base; 2. Support column; 3. Support base; 4. Limiting ring; 5. Hydraulic push rod; 6. Hydraulic actuator; 7. Oil pipe connection port; 8. Central box; 9. Support frame; 10. Drive motor; 11. Transmission plate; 12. Fixing frame; 13. Drive rod; 14. Removable foot sleeve; 15. Base plate; 16. Clamping pad; 17. Thread; 18. Limiting column; 19. First vibration damping pad; 20. Second vibration damping pad; 21. Air; 22. Air sleeve; 23. Groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-5 The adjustable structure for valve seat grinding and processing shown includes a support base 3 and a limiting ring 4 installed on the upper side of the support base 3; Two hydraulic actuators 6 are provided on the upper side of the support base 3; Two hydraulic actuators 6 are each connected to two hydraulic push rods 5 inside the lower outer wall to abut against the inner wall of the valve seat opening area to clamp and fix the position of the valve seat. A central box 8 is fixedly connected between the upper outer walls of the two hydraulic actuators 6. Two oil passage connection ports 7 are provided on the front and rear outer walls of the central box 8 to guide the entry and exit of hydraulic oil in the two hydraulic actuators 6. The prepared valve seat is placed on the support base 3 so that the valve seat is fitted in the area defined by the limit ring 4. The hydraulic system is started and the hydraulic pump is controlled by the external control device so that the hydraulic oil flows into the hydraulic actuator 6 through the oil passage connection port 7. The internal pressure of the hydraulic actuator 6 increases, pushing the hydraulic push rod 5 to extend outward until the end of the hydraulic push rod 5 abuts against the inner wall of the valve seat opening area. By adjusting the hydraulic system pressure, the hydraulic push rod 5 applies a suitable clamping force to the valve seat, completing the initial clamping of the valve seat. The grinding equipment is started and the grinding tool begins to grind the valve seat. After the grinding is completed, the hydraulic pump is controlled by the external control device so that the hydraulic oil is discharged from the hydraulic actuator 6 through the oil passage connection port 7, reducing the internal pressure of the hydraulic actuator 6. The hydraulic push rod 5 retracts, releasing the clamping force on the valve seat. Two removable foot sleeves 14 are provided on one side of each of the two hydraulic actuators 6. A clamping pad 16 is provided on one side of each of the two removable foot sleeves 14. If it is found that the hydraulic push rod 5 alone is not ideal in fixing the valve seat, the removable foot sleeve 14 is screwed onto the lower end of the hydraulic push rod 5, and the hydraulic push rod 5 is moved down so that the clamping pad 16 fits against the upper end of the valve seat, so as to support the base 3 to work at the same time and clamp and limit the position of the valve seat.

[0025] like Figure 3 and Figure 4 As shown, threads 17 are provided on the circular outer walls of multiple hydraulic push rods 5 for screwing and fixing of detachable foot sleeves 14. A base plate 15 is provided between multiple detachable foot sleeves 14 and clamping pads 16. One end of each of the two hydraulic actuators 6 is fixedly connected to a limit post 18 for screwing in the detachable foot sleeves 14, thus limiting the placement position of the detachable foot sleeves 14 when not in use.

[0026] Unscrew the appropriate removable foot sleeve 14 from the limiting post 18, align it with the thread 17 on the hydraulic push rod 5, and rotate the removable foot sleeve 14 clockwise to gradually screw it onto the hydraulic push rod 5 until it is tightened. Rotate the removable foot sleeve 14 counterclockwise to unscrew it from the hydraulic push rod 5, align the removed removable foot sleeve 14 with the limiting post 18, and rotate the removable foot sleeve 14 clockwise to screw it onto the limiting post 18, thus completing the return of the removable foot sleeve 14 to its original position.

[0027] like Figure 5 As shown, a first damping pad 19 is fixedly connected to the upper outer wall of the support base 3, and a second damping pad 20 is fixedly connected to the upper outer wall of the first damping pad 19. An upward-opening groove 23 is provided inside the upper outer wall of the second damping pad 20. An air sleeve 22 is provided inside the groove 23, and the air sleeve 22 is filled with air 21. The air sleeve 22 is made of soft rubber material.

[0028] During the valve seat grinding process, the grinding equipment will generate vibration. The second damping pad 20 first buffers the vibration from the support base 3. It can absorb some of the vibration energy and reduce the intensity of the vibration. Then, the first damping pad 19 further absorbs and attenuates the vibration after it has been buffered by the second damping pad 20. The air 21 in the air sleeve 22 is fluid and will automatically flow and fill according to the shape of the valve seat, especially the concave position of the valve seat, so that the air sleeve 22 can fit tightly against the surface of the valve seat.

[0029] like Figure 1 As shown, a support column 2 is fixedly connected to the lower outer wall of the support base 3, a mounting base 1 is fixedly connected to the lower outer wall of the support column 2, a fixing frame 12 is fixedly connected to the left outer wall of the mounting base 1, and a drive motor 10 is fixedly connected to the upper outer wall of the fixing frame 12, which is electrically connected to an external power source.

[0030] First, determine a suitable location for the mounting base 1 in the work area, ensuring it is placed on a flat, solid surface or work platform. Securely fix the mounting base 1 to the selected location using bolts. The mounting bracket 12 supports the drive motor 10, ensuring the drive motor 10 has a good and stable working position during operation.

[0031] like Figure 1 As shown, a transmission plate 11 is provided on the lower side of the drive motor 10. A support frame 9 is fixedly connected to the outer wall of the right end of the transmission plate 11 to limit the fixed position of the two hydraulic actuators 6. A drive rod 13 passing through the transmission plate 11 is fixedly connected to the outer wall of the lower end of the drive motor 10 so as to drive the transmission plate 11 to move up and down when rotating in different directions.

[0032] During the operation of the drive motor 10, the internal rotor drives the drive rod 13 to rotate. When the drive rod 13 rotates clockwise, it synchronously drives the transmission plate 11 and the support frame 9 to move downward, controlling the hydraulic push rod 5 to enter the interior of the valve seat. When the drive motor 10 rotates counterclockwise, it drives the transmission plate 11 and other components to move upward, causing the hydraulic push rod 5 to move away from the valve seat.

[0033] The implementation principle of this embodiment is as follows: The prepared valve seat is placed on the support base 3, so that the valve seat fits within the area defined by the limiting ring 4. The hydraulic system is started, and the hydraulic pump is controlled by an external control device, causing hydraulic oil to flow into the hydraulic actuator 6 through the oil pipe connection port 7. The internal pressure of the hydraulic actuator 6 increases, pushing the hydraulic push rod 5 outward until the end of the hydraulic push rod 5 abuts against the inner wall of the valve seat opening area. By adjusting the hydraulic system pressure, the hydraulic push rod 5 applies a suitable clamping force to the valve seat, completing the initial clamping of the valve seat. The grinding equipment is then started. The grinding tool begins grinding the valve seat. After grinding, the hydraulic pump is controlled by an external control device to discharge hydraulic oil from the hydraulic actuator 6 through the oil pipe connection port 7, reducing the internal pressure of the hydraulic actuator 6. The hydraulic push rod 5 retracts, releasing the clamping force on the valve seat. If it is found that the hydraulic push rod 5 alone is not ideal in fixing the valve seat, the detachable foot sleeve 14 is screwed onto the lower end of the hydraulic push rod 5, causing the hydraulic push rod 5 to move down, so that the clamping pad 16 fits against the upper end of the valve seat to support the base 3 and work simultaneously to clamp and limit the position of the valve seat.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable structure for valve seat grinding, comprising a support base (3) and a limiting ring (4) mounted on the upper side of the support base (3); Two hydraulic actuators (6) are provided on the upper side of the support base (3). Two hydraulic push rods (5) are connected to the lower outer wall of each of the two hydraulic actuators (6) to abut against the inner wall of the valve seat opening area to clamp and fix the position of the valve seat. A central box (8) is fixedly connected between the upper outer walls of the two hydraulic actuators (6). Two oil passage connection ports (7) are provided on the front and rear outer walls of the central box (8) to guide the hydraulic oil of the two hydraulic actuators (6) to enter and exit. Its features are: Two removable foot sleeves (14) are provided on one side of each of the two hydraulic actuators (6), and a clamping pad (16) is provided on one side of each of the two removable foot sleeves (14).

2. The adjustable structure for valve seat grinding according to claim 1, characterized in that: The circular outer walls of the multiple hydraulic push rods (5) are provided with threads (17) for the removable foot sleeves (14) to be screwed and fixed. A base plate (15) is provided between the multiple removable foot sleeves (14) and the clamping pads (16).

3. The adjustable structure for valve seat grinding according to claim 1, characterized in that: One end of each of the two hydraulic actuators (6) is fixedly connected to a limit post (18) for screwing in the removable foot sleeve (14) to limit the placement position of the removable foot sleeve (14) when not in use.

4. The adjustable structure for valve seat grinding according to claim 1, characterized in that: The upper outer wall of the support base (3) is fixedly connected to a first damping pad (19), and the upper outer wall of the first damping pad (19) is fixedly connected to a second damping pad (20).

5. The adjustable structure for valve seat grinding according to claim 4, characterized in that: The upper outer wall of the second damping pad (20) has an upward-opening groove (23), and an air sleeve (22) is provided inside the groove (23).

6. The adjustable structure for valve seat grinding according to claim 5, characterized in that: The air sleeve (22) is filled with air (21) and is made of soft rubber material.

7. The adjustable structure for valve seat grinding according to claim 1, characterized in that: The lower outer wall of the support base (3) is fixedly connected to a support column (2), and the lower outer wall of the support column (2) is fixedly connected to a mounting base (1).

8. The adjustable structure for valve seat grinding according to claim 7, characterized in that: A mounting bracket (12) is fixedly connected to the outer wall of the left end of the mounting base (1), and a drive motor (10) is fixedly connected to the outer wall of the upper end of the mounting bracket (12), which is electrically connected to an external power source.

9. The adjustable structure for valve seat grinding according to claim 8, characterized in that: A transmission plate (11) is provided on the lower side of the drive motor (10), and a support frame (9) is fixedly connected to the outer wall of the right end of the transmission plate (11) to limit the fixed position of the two hydraulic actuators (6).

10. The adjustable structure for valve seat grinding according to claim 8, characterized in that: The lower outer wall of the drive motor (10) is fixedly connected to a drive rod (13) that passes through the transmission plate (11) so that the transmission plate (11) can be moved up and down when rotating in different directions.

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