A sealing ring press-in device for valve cover machining

Abstract

This application relates to the field of valve processing technology, and in particular to a sealing ring pressing device for valve cover processing. The device includes a worktable and a mounting bracket for fixing the valve cover. The mounting bracket is disposed on the worktable, and the worktable has a limiting structure for limiting the downward movement height of the sealing ring. The mounting bracket has a pressing structure for completely pressing the sealing ring into a mounting groove. The pressing structure is disposed above the valve seat. The mounting bracket has a second clearance hole for avoiding the limiting structure. The limiting structure forms an abutment fit with the lower surface of the sealing ring. During operation, the valve cover is fixed on the mounting bracket, and the pressing structure on the mounting bracket completely presses the sealing ring into the mounting groove, ensuring a stable and reliable interference fit between the sealing ring and the mounting groove. Simultaneously, the second clearance hole allows the limiting structure to pass, and the limiting structure can accurately limit the downward movement height of the sealing ring, ensuring the installation accuracy of the sealing ring in the mounting groove.

Description

Technical Field

[0001] This application relates to the field of valve processing technology, and in particular to a sealing ring pressing device for valve cover processing. Background Technology

[0002] In industrial production, valves are key components for controlling fluid flow, and their sealing performance directly affects the safe and stable operation of the entire system. The valve cover and stem are important structural parts of the valve, and the sealing performance between them is crucial; the installation quality of the sealing ring is the core factor in ensuring this sealing performance.

[0003] Currently, during the installation of valve cover sealing rings, workers typically manually press the sealing rings into the mounting grooves of the valve cover. However, this traditional manual installation method has significant drawbacks: it is difficult to accurately control the pressing depth of the sealing ring, making it impossible to ensure that the top surface of the sealing ring is flush with the valve cover after installation, thus affecting the overall assembly effect; it also easily leads to a decrease in the sealing performance of the valve cover after assembly, resulting in fluid leakage, and therefore requires improvement. Utility Model Content

[0004] In order to stably install the sealing ring in the mounting groove of the valve cover and to accurately control the pressing depth of the sealing ring, this application provides a sealing ring pressing device for valve cover processing.

[0005] This application provides a sealing ring pressing device for valve cover processing, which adopts the following technical solution: A sealing ring pressing device for valve cover processing includes a worktable and a mounting bracket for fixing the valve cover. The mounting bracket is disposed on the worktable, and the worktable is provided with a limiting structure for limiting the downward movement height of the sealing ring. The mounting bracket is provided with a pressing structure for pressing the sealing ring into a mounting groove. The pressing structure is disposed above the valve seat. The mounting bracket is provided with a second clearance hole for avoiding the limiting structure. The limiting structure forms an abutment fit with the lower surface of the sealing ring.

[0006] By adopting the above technical solution, the valve cover is fixed on the mounting bracket during operation. The pressing structure on the mounting bracket presses the sealing ring completely into the mounting groove, ensuring a stable and reliable interference fit between the sealing ring and the mounting groove. At the same time, the second clearance hole is a limiting structure for clearance. The limiting structure can accurately limit the downward movement height of the sealing ring, ensuring the installation accuracy of the sealing ring in the mounting groove, thereby effectively improving the sealing performance between the valve stem and the valve seat and reducing the risk of fluid leakage.

[0007] Preferably, a fixing sleeve is detachably provided on the mounting bracket, and a connecting hole for avoiding the limiting structure is provided inside the fixing sleeve. The second avoiding hole is connected to the connecting hole, and the valve seat is sleeved on the fixing sleeve.

[0008] By adopting the above technical solution, the movement path of the limiting structure is further optimized by connecting the internal connecting hole and the clearance hole of the fixed column, ensuring that the limiting structure can smoothly contact the sealing ring and limit its height; the fixed sleeve and the valve seat form a sleeve fit, which enhances the connection stability between the mounting bracket and the valve seat, prevents the valve seat from shifting during the installation of the sealing ring, and ensures the accuracy and consistency of the installation operation.

[0009] Preferably, the fixed sleeve is provided with an embedding groove, and the embedding groove of the fixed sleeve forms an embedding fit with the valve seat.

[0010] By adopting the above technical solution, the embedded groove on the fixed sleeve forms an embedded fit with the valve seat, which further improves the positioning accuracy and fixing effect of the valve seat on the mounting bracket. It can better constrain the position of the valve seat and prevent it from shaking or shifting during the installation of the sealing ring, thus providing a stable foundation for the accurate installation of the sealing ring.

[0011] Preferably, the limiting structure includes a first cylinder and a support rod. The first cylinder is disposed below the worktable, and the piston rod of the first cylinder is fixed to the support rod. The support rod passes through the worktable, the mounting bracket and the fixing sleeve from bottom to top and forms an abutment fit with the lower surface of the sealing ring.

[0012] By adopting the above technical solution, the piston rod driven by the first cylinder is moved up to the installation height of the sealing ring, so as to achieve precise contact and height limit of the lower surface of the sealing ring, so that the sealing ring can be accurately installed in the predetermined position, thereby improving the installation efficiency and installation quality of the sealing ring.

[0013] Preferably, the pressing structure includes a second cylinder and a pressing head for pressing the sealing ring, wherein the second cylinder and the pressing head are detachably connected, and the lower surface of the pressing head abuts against the upper surface of the sealing ring.

[0014] By adopting the above technical solution, the second cylinder drives the pressure head to press the sealing ring downwards. The pressure head acts directly on the upper surface of the sealing ring, thereby pressing the sealing ring evenly and stably into the mounting groove of the valve cover, effectively improving the sealing effect.

[0015] Preferably, one end of the pressure head is fixed with a connecting nut, and the piston rod of the second cylinder is provided with an external thread, and the connecting nut and the external thread form a threaded connection.

[0016] By adopting the above technical solution, the pressure head is threadedly connected to the piston rod of the second cylinder via a connecting nut, realizing a detachable connection between the pressure head and the second cylinder. This facilitates maintenance and replacement of the pressure head by the staff, reducing equipment maintenance costs.

[0017] Preferably, the fixing sleeve is fixed to the mounting bracket by bolts.

[0018] By adopting the above technical solution, the fixed sleeve is fixed to the workbench with bolts, which makes it easy for workers to disassemble and replace the fixed sleeve.

[0019] Preferably, the workbench is provided with a first clearance hole for avoiding the support rod.

[0020] By adopting the above technical solution, the first clearance hole on the worktable provides movement space for the support rod, avoiding interference between the support rod and the worktable during the extension and retraction process, and ensuring that the support rod can move upward normally to limit the sealing ring.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. During operation, the valve cover is fixed on the mounting bracket. The pressing structure on the mounting bracket presses the sealing ring completely into the mounting groove, ensuring a stable and reliable interference fit between the sealing ring and the mounting groove. At the same time, the second clearance hole is a limiting structure for clearance. The limiting structure can accurately limit the downward movement height of the sealing ring, ensuring the installation accuracy of the sealing ring in the mounting groove, thereby effectively improving the sealing performance between the valve stem and the valve seat and reducing the risk of fluid leakage. 2. By utilizing the connecting holes and clearance holes inside the fixed column, the movement path of the limiting structure is further optimized, ensuring that the limiting structure can smoothly contact the sealing ring and limit its height; the fixed sleeve and the valve seat form a sleeve fit, which enhances the connection stability between the mounting bracket and the valve seat, prevents the valve seat from shifting during the installation of the sealing ring, and ensures the accuracy and consistency of the installation operation; 3. The pressure head is threadedly connected to the piston rod of the second cylinder via a connecting nut, which enables a detachable connection between the pressure head and the second cylinder. This facilitates maintenance and replacement of the pressure head by the staff, reducing equipment maintenance costs. Attached Figure Description

[0022] Figure 1 This is an isometric schematic diagram of the main overall structure in the embodiments of this application; Figure 2 This is a schematic diagram of the main pressing structure in the embodiments of this application; Figure 3 This is a cross-sectional view in the embodiments of this application, mainly illustrating the fit between the support rod, the fixed sleeve, and the inner sealing ring of the valve seat.

[0023] Reference numerals: 1. Workbench; 11. First clearance hole; 2. Mounting bracket; 21. Fixing sleeve; 211. Embedding groove; 212. Connecting hole; 22. Second clearance hole; 3. Limiting structure; 31. First cylinder; 32. Support rod; 4. Pressing structure; 41. Second cylinder; 42. Press head; 43. Connecting nut. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail.

[0025] This application discloses a sealing ring pressing device for valve cover processing.

[0026] Reference Figure 1 A sealing ring pressing device for valve cover processing includes a worktable 1 and a mounting frame 2. The mounting frame 2 is fixed to the upper surface of the worktable 1 by bolts. The valve cover is mounted on the mounting frame 2. The worktable 1 is provided with a limiting structure 3 for limiting the downward movement height of the sealing ring. The mounting frame 2 is provided with a pressing structure 4 for pressing the sealing ring into the mounting groove. The pressing structure 4 is located above the valve seat, and the valve cover is located between the limiting structure 3 and the pressing structure 4.

[0027] Reference Figure 1 During operation, the valve cover is fixed on the mounting bracket 2, and the pressing structure 4 presses the sealing ring completely into the mounting groove, ensuring a stable and reliable interference fit between the sealing ring and the mounting groove. The limiting structure 3 forms an abutment fit with the lower surface of the sealing ring, so that the limiting structure 3 can accurately limit the downward movement height of the sealing ring, thereby stably installing the sealing ring in the mounting groove of the valve cover and ensuring the installation accuracy of the sealing ring in the mounting groove.

[0028] Reference Figure 1 and Figure 2 A fixing sleeve 21 is fixed to the mounting bracket 2 by bolts. The outer diameter of the fixing sleeve 21 matches the inner diameter of the valve cover, so that the valve seat can be fitted onto the fixing sleeve 21, which improves the positional stability of the valve seat. The fixing sleeve 21 has an embedding groove 211, which forms an embedding fit with the valve seat, thereby realizing the radial positioning of the valve seat. This further improves the positioning accuracy and fixing effect of the valve seat on the mounting bracket 2, prevents the valve seat from shifting during the installation of the sealing ring, and provides a stable foundation for the accurate installation of the sealing ring.

[0029] Reference Figure 2 and Figure 3The limiting structure 3 includes a first cylinder 31 and a support rod 32. The first cylinder 31 is vertically fixed to the bottom of the workbench 1 by bolts, and the piston rod of the first cylinder 31 is fixedly connected to the support rod 32. A first clearance hole 11 is provided on the workbench 1, and a second clearance hole 22 is provided on the mounting bracket 2. A connecting hole 212 is provided inside the fixing sleeve 21 along its axial direction. The first clearance hole 11, the second clearance hole 22 and the connecting hole 212 are coaxially arranged and interconnected. After the support rod 32 passes through the first clearance hole 11 of the workbench 1, the second clearance hole 22 of the mounting bracket 2 and the connecting hole 212 of the fixing sleeve 21 from bottom to top, the upper end face of the support rod 32 is located directly below the mounting groove of the valve cover, so that the upper surface of the support rod 32 can smoothly form an abutment fit with the lower surface of the sealing ring, thereby accurately controlling the downward movement height of the sealing ring.

[0030] Reference Figure 2 The pressing structure 4 includes a second cylinder 41 and a pressing head 42. The second cylinder 41 is fixed on the mounting bracket 2 by a bracket. The second cylinder 41 and the pressing head 42 are detachably connected. In this embodiment, the piston rod of the second cylinder 41 is machined with external threads. The upper end of the pressing head 42 is welded with a connecting nut 43. The connecting nut 43 and the external threads form a threaded connection. The pressing head 42 is installed on the piston rod of the second cylinder 41 through the connecting nut 43. When in use, the lower surface of the pressing head 42 abuts against the upper surface of the sealing ring, so that the pressing head 42 presses the sealing ring evenly and stably into the mounting groove of the valve cover, effectively improving the sealing effect.

[0031] The implementation principle of this application embodiment is as follows: In actual operation, the operator inserts the valve cover into the mounting groove 211 of the fixing sleeve 21 and manually places the sealing ring initially in the mounting groove 211 of the valve cover; then the first cylinder 31 is started to drive the support rod 32 to move upward until the support rod 32 is located directly below the mounting groove of the valve cover, ensuring that the bottom of the sealing ring is always supported; then the second cylinder 41 is started to push the pressure head 42 downward to press the sealing ring completely into the bottom of the mounting groove. At this time, the lower surface of the sealing ring abuts against the upper surface of the support rod 32, thus completing the assembly of the sealing ring and the valve cover. After the second cylinder 41 returns to its original position, the first cylinder 31 drives the support rod 32 to return to its initial position and removes the valve cover with the sealing ring installed.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sealing ring press-in device for valve cover machining, characterized by: The device includes a workbench (1) and a mounting bracket (2) for fixing the valve cover. The mounting bracket (2) is set on the workbench (1). The workbench (1) is provided with a limiting structure (3) for limiting the downward movement height of the sealing ring. The mounting bracket (2) is provided with a pressing structure (4) for pressing the sealing ring into the mounting groove. The pressing structure (4) is set above the valve seat. The mounting bracket (2) is provided with a second clearance hole (22) for avoiding the limiting structure (3). The limiting structure (3) forms an abutment fit with the lower surface of the sealing ring.

2. The sealing ring press-in device for valve cover machining according to claim 1, characterized in that: The mounting bracket (2) is detachably provided with a fixing sleeve (21). The fixing sleeve (21) has a connecting hole (212) for avoiding the limiting structure (3). The second avoidance hole (22) is connected to the connecting hole (212). The valve seat is sleeved on the fixing sleeve (21).

3. The sealing ring press-in device for valve cover machining according to claim 2, characterized in that: The fixed sleeve (21) is provided with an embedding groove (211), and the embedding groove (211) of the fixed sleeve (21) forms an embedding fit with the valve seat.

4. The sealing ring press-in device for valve cover machining according to claim 2, characterized in that: The limiting structure (3) includes a first cylinder (31) and a support rod (32). The first cylinder (31) is located below the workbench (1), and the piston rod of the first cylinder (31) is fixed to the support rod (32). The support rod (32) passes through the workbench (1), the mounting bracket (2) and the fixing sleeve (21) from bottom to top and forms an abutment fit with the lower surface of the sealing ring.

5. The sealing ring press-in device for valve cover machining according to claim 1, characterized in that: The pressing structure (4) includes a second cylinder (41) and a pressing head (42) for pressing the sealing ring. The second cylinder (41) and the pressing head (42) are detachably connected. The lower surface of the pressing head (42) abuts against the upper surface of the sealing ring.

6. The sealing ring press-in device for valve cover machining according to claim 5, characterized in that: One end of the pressure head (42) is fixed with a connecting nut (43), and the piston rod of the second cylinder (41) is provided with an external thread, and the connecting nut (43) and the external thread form a threaded connection.

7. The sealing ring press-in device for valve cover machining according to claim 2, characterized in that: The fixing sleeve (21) is fixed to the mounting bracket (2) by bolts.

8. The sealing ring press-in device for valve cover machining according to claim 4, characterized in that: The workbench (1) is provided with a first clearance hole (11) for avoiding the support rod (32).

Images