Annular gasket and outer circle chamfering device thereof, wave-shaped sealing ring

Abstract

This utility model relates to the field of sealing structure processing, and discloses an annular gasket and its outer chamfering processing device, as well as a corrugated sealing ring. The outer chamfering processing device includes a first annular plate and a second annular plate stacked together. The first annular plate has an annular groove on its first annular end face facing the second annular plate, which partially accommodates the annular gasket to be processed. A first reference surface and a second reference surface are spaced apart to allow the annular gasket to be processed to partially protrude from the annular groove. The preset outer chamfer of the annular gasket to be processed belongs to the same frustum as the first and second reference surfaces. Through the above technical solution, the two annular plates can clamp and fix the annular gasket to be processed, and the outer circumferential surfaces of the two annular plates can be used as reference surfaces to more accurately process the outer chamfer on the annular gasket to be processed, ensuring the processing accuracy of the gasket, thereby ensuring the sealing performance of the corrugated sealing ring where the gasket is located.

Description

Technical Field

[0001] This utility model relates to the field of sealing structure processing, specifically to a chamfering device for an annular gasket, an annular gasket, and a wave-shaped sealing ring. Background Technology

[0002] The end caps and the cylinder of the reactor are sealed by a corrugated sealing ring. The corrugated sealing ring includes a body, an annular gasket, and a clamping ring, and the annular gasket has an outer chamfer.

[0003] The outer chamfer of the annular gasket is formed by machining a regular gasket without a chamfer. The annular gasket is made of non-metallic material, which is relatively soft, making the chamfering process more difficult. The outer chamfer of the metal gasket is formed by manual grinding, which makes it difficult to guarantee the machining accuracy and quality, thus affecting the sealing effect. Utility Model Content

[0004] The purpose of this invention is to overcome the problem of insufficient machining accuracy of the outer chamfer of the annular gasket in the existing technology.

[0005] To achieve the above objectives, this utility model provides a device for processing the outer circle chamfer of an annular gasket, comprising a first annular plate and a second annular plate stacked together. The outer peripheral surface of the first annular plate is formed as a first reference surface in the shape of a frustum, and the outer peripheral surface of the second annular plate is formed as a second reference surface in the shape of a frustum. The first annular plate has an annular groove on its first annular end face facing the second annular plate, which partially accommodates the annular gasket to be processed. The first reference surface and the second reference surface are spaced apart to allow the annular gasket to be processed to partially extend out of the annular groove. The preset outer circle chamfer of the annular gasket to be processed belongs to the same frustum as the first reference surface and the second reference surface.

[0006] In some embodiments, the annular groove is located on the outermost side of the first annular end face.

[0007] In some embodiments, the outer diameters of the first reference surface and the second reference surface gradually decrease in the direction from the first annular plate toward the second annular plate.

[0008] In some embodiments, the second annular plate is provided with a recess on one of the second annular end face and the first annular end face of the first annular plate, and a protrusion on the other. The protrusion is accommodated in the recess, and the axial dimension of the protrusion is greater than the axial dimension of the recess, so that other portions of the first annular end face are spaced apart from other portions of the second annular end face.

[0009] In some embodiments, the recess is an annular portion located radially inside the first annular end face, and the protrusion is an annular portion located radially inside the second annular end face.

[0010] In some embodiments, the first annular plate and the second annular plate are detachably connected.

[0011] In some embodiments, the first annular plate and the second annular plate are connected by bolts.

[0012] On the other hand, this solution also provides an annular gasket, wherein the annular gasket is formed by a chamfering device on the outer circle of the annular gasket.

[0013] In some embodiments, the annular gasket is made of a non-metallic material.

[0014] On the other hand, this solution also provides a wave-shaped sealing ring, which includes a body, a clamping ring, and an annular gasket. An annular protrusion is provided on the outer periphery of the body, and the annular gasket is provided on both axial sides of the annular protrusion. The clamping ring is pressed against the annular gasket toward the annular protrusion.

[0015] Through the above technical solution, the two annular plates can clamp and fix the annular gasket to be processed, and the outer circumferential surfaces of the two annular plates can be used as reference surfaces to more accurately process the outer chamfer on the annular gasket to be processed, ensuring the processing accuracy of the gasket, thereby ensuring the sealing performance of the wave sealing ring where the gasket is located. Attached Figure Description

[0016] Figure 1 This is a partial sectional view of the annular gasket chamfering processing device described in this solution;

[0017] Figure 2 This is a partial cross-sectional view of the annular gasket described in this solution;

[0018] Figure 3 This is a partial cross-sectional view of the waveform sealing ring described in this solution;

[0019] Figure 4 This is a partial cross-sectional view of the waveform sealing ring described in this solution being sealed in the reactor.

[0020] Explanation of reference numerals in the attached figures

[0021] 10-First annular plate, 11-First reference surface, 12-First annular end face, 13-Annular groove, 14-Recessed part, 20-Second annular plate, 21-Second reference surface, 22-Second annular end face, 23-Protrusion, 30-Bolt, 40-Annular gasket, 41-Annular gasket to be processed, 50-Main body, 51-Annular protrusion, 60-Clamping ring, 70-Clamping clamp, 80-End cap, 90-Cylinder body. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] This solution provides a device for processing the outer circle chamfer of an annular gasket, comprising a first annular plate 10 and a second annular plate 20 stacked together. The outer peripheral surface of the first annular plate 10 is formed into a first reference surface 11 in the shape of a frustum, and the outer peripheral surface of the second annular plate 20 is formed into a second reference surface 21 in the shape of a frustum. The first annular end face 12 of the first annular plate 10 facing the second annular plate 20 is provided with an annular groove 13 that partially accommodates the annular gasket to be processed. The first reference surface 11 and the second reference surface 21 are spaced apart to allow the annular gasket 41 to be processed to partially protrude from the annular groove 13. The preset outer circle chamfer of the annular gasket 41 to be processed belongs to the same frustum as the first reference surface 11 and the second reference surface 21.

[0024] Figure 2 The diagram shows the structure of the annular gasket 40, with an outer chamfer formed between its outer circumferential surface and annular end face. The annular gasket 41 to be processed is a gasket structure without a chamfer, which needs to be machined through a chamfering process.

[0025] refer to Figure 1 As shown, the outer circle chamfering processing device for the annular gasket includes a first annular plate 10 and a second annular plate 20. The annular gasket 41 to be processed is positioned by the annular groove 13 on the first annular plate 10, so that it can be clamped between the stacked first annular plate 10 and the second annular plate 20.

[0026] In the stacked first annular plate 10 and second annular plate 20, the outer peripheral surface of the first annular plate 10 and the outer peripheral surface of the second annular plate 20 are two parts of the same frustum, that is, the first reference surface 11 and the second reference surface 21 are frustums and are spaced apart from each other. The annular gasket 41 to be processed extends from between the first reference surface 11 and the second reference surface 21. In particular, the preset outer chamfer of the annular gasket 41 to be processed also belongs to the same frustum as the first reference surface 11 and the second reference surface 21. Therefore, the protruding part of the annular gasket 41 to be processed can be removed with the first reference surface 11 and the second reference surface 21 as the standard, thereby forming the outer chamfer. The outer chamfer together with the first reference surface 11 and the second reference surface 21 forms the frustum.

[0027] In other words, the preset outer chamfer of the annular gasket 41 to be processed is aligned with the first reference surface 11 and the second reference surface 21. Therefore, the annular gasket 41 to be processed can be processed with the first reference surface 11 and the second reference surface 21 as references, for example, by milling a pin to form the outer chamfer.

[0028] In this design, two annular plates can clamp and fix the annular gasket to be processed, and the outer circumferential surfaces of the two annular plates can be used as reference surfaces to more accurately process the outer chamfer on the annular gasket to be processed, ensuring the processing accuracy of the gasket and thus ensuring the sealing performance of the wave sealing ring where the gasket is located.

[0029] In some embodiments, the annular groove 13 is located on the outermost side of the first annular end face 12. (See reference...) Figure 1 As shown, the annular groove 13 is located at the outermost ring of the first annular end face 12. That is to say, the annular groove 13 is adjacent to the first reference surface 11, and there is no flat first annular end face 12 between them. This ensures that the annular gasket to be processed in the annular groove 13 can extend outward from between the first reference surface 11 and the second reference surface 21.

[0030] In some embodiments, the outer diameters of the first reference surface 11 and the second reference surface 21 gradually decrease in the direction from the first annular plate 10 toward the second annular plate 20. The first annular end face 12 where the annular groove 13 is located faces the second annular plate 20. The outer diameters of the first reference surface 11 and the second reference surface 21 gradually decrease in the direction from the first annular plate 10 toward the second annular plate 20. That is, the annular groove 13 is located at the end of the first annular plate 10 with the smaller outer diameter, allowing the annular groove 13 to extend into the interior of the first annular plate 10.

[0031] In some embodiments, the second annular plate 20 is provided with a recess 14 facing one of the second annular end face 22 and the first annular end face 12 of the first annular plate 10, and a protrusion 23 is provided on the other. The protrusion 23 is accommodated in the recess 14, and the axial dimension of the protrusion 23 is larger than the axial dimension of the recess 14, so that other parts of the first annular end face 12 are spaced apart from other parts of the second annular end face 22. In other words, the length (axial direction) of the protrusion 23 is greater than the depth (axial direction) of the recess 14. Therefore, the protrusion 23 cannot be fully inserted into the recess 14. This keeps the first annular end face 12 and the second annular end face 22 apart. Correspondingly, the first reference surface 11 and the second reference surface 21 are also kept apart to allow the annular gasket 41 to be processed in the annular groove 13 to extend out from between the first reference surface 11 and the second reference surface 21. After the annular gasket 41 to be processed is processed with an outer chamfer (becoming the finished annular gasket 40), the outer chamfer fills the space between the first reference surface 11 and the second reference surface 21 to form a complete frustum.

[0032] In some embodiments, the recess 14 is an annular portion located radially inside the first annular end face 12, and the protrusion 23 is an annular portion located radially inside the second annular end face 22. (Refer to...) Figure 1 As shown, the recessed portion 14 can be formed on the first annular plate 10 and can be formed as an annular ring coaxial with the first annular plate 10, and the protruding portion 23 can be formed on the second annular plate 20 and can be formed as an annular ring coaxial with the second annular plate 20. The outer diameter of the protruding portion 23 is substantially the same as the outer diameter of the recessed portion 14, so that the first annular plate 10 and the second annular plate 20 can be positioned coaxially.

[0033] Of course, in other embodiments, the recess 14 may also be formed on the second annular plate 20, and the protrusion 23 may be formed on the first annular plate 10, and the cross-sections of both may also be of other shapes.

[0034] In some embodiments, the first annular plate 10 and the second annular plate 20 are detachably connected. In the initial state, the first annular plate 10 and the second annular plate 20 can be separated from each other. After the annular gasket 41 to be processed is positioned in the annular groove 13, the second annular plate 20 can be stacked and connected with the first annular plate 10 to clamp the annular gasket 41 to be processed.

[0035] In some embodiments, the first annular plate 10 and the second annular plate 20 are connected by bolts 30. Bolt holes may be provided on the first annular plate 10 and the second annular plate 20, and these bolt holes are aligned with each other to allow the first annular plate 10 and the second annular plate 20 to be fixedly connected by bolts. The bolt holes may be spaced apart along the circumferential direction of the annular plates, meaning that the two annular plates can be connected and fixed at multiple locations using bolts 30 to ensure overall stability.

[0036] On the other hand, this solution also provides an annular gasket, wherein the annular gasket 40 is formed by a chamfering device for the outer circle of the annular gasket. The annular gasket 40 can be formed by machining the annular gasket 41 to be processed, and the cross-section of the annular gasket 40 through the central axis is referenced. Figure 2 As shown, the cross-section of the annular gasket 41 to be processed passing through the central axis is referenced. Figure 1 As shown.

[0037] In some embodiments, the annular gasket 40 is made of a non-metallic material. The annular gasket 40 can be made of rubber, polytetrafluoroethylene, graphite, etc.

[0038] On the other hand, this solution also provides a wave-shaped sealing ring, which includes a body portion 50, a clamping ring 60, and an annular gasket 40 as described in the above solution. An annular protrusion 51 is provided on the outer periphery of the body portion 50, and the annular gasket 40 is respectively provided on both axial sides of the annular protrusion 51. The clamping ring 60 presses against the annular gasket 40 towards the annular protrusion 51. The wave-shaped sealing ring includes an annular body portion 50, and the cross-section of the wave-shaped sealing ring through the central axis is as shown... Figure 3 As shown, an annular protrusion 51 is formed on its outer periphery, and annular gaskets 40 are respectively provided on both sides of the annular protrusion 51. Two clamping rings 60 clamp the corresponding annular gaskets 40 with the annular protrusion 51. The clamping rings 60 can be made of a material with high hardness, such as metal or alloy material.

[0039] In the cross-section of the corrugated sealing ring, the lines corresponding to its outer circumference are wavy, forming a shape similar to "B"; in the sealing structure, refer to Figure 4 As shown, the corrugated sealing ring is clamped between the end cap 80 and the cylinder 90 of the reactor. The outer peripheries of the end cap 80 and the cylinder 90 are clamped by the clamp 70. Under low pressure, the outer peripheral surface of the annular gasket 40 is in contact with the inner peripheral surface of the end cap 80 and the cylinder 90. When the pressure increases, the corrugated sealing ring is subjected to radial outward pressure, and the annular gasket 40 and the annular protrusion 51 deform. The clamping ring 60 is pressed against the inner peripheral surface of the end cap 80 and the cylinder 90. At the same time, the clamping ring 60 can limit the axial deformation of the annular gasket 40 and the annular protrusion 51 to ensure sealing performance.

[0040] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. An outer circle chamfering device for ring gaskets, characterized by, The system includes a first annular plate (10) and a second annular plate (20) stacked together. The outer peripheral surface of the first annular plate (10) is formed into a first reference surface (11) in the shape of a frustum, and the outer peripheral surface of the second annular plate (20) is formed into a second reference surface (21) in the shape of a frustum. The first annular end face (12) of the first annular plate (10) facing the second annular plate (20) is provided with an annular groove (13) that partially accommodates the annular gasket to be processed. The first reference surface (11) and the second reference surface (21) are spaced apart to allow the annular gasket (41) to be processed to partially protrude from the annular groove (13). The preset outer chamfer of the annular gasket (41) to be processed belongs to the same frustum as the first reference surface (11) and the second reference surface (21).

2. The chamfering device for the outer circle of the annular gasket according to claim 1, characterized in that, The annular groove (13) is located on the outermost side of the first annular end face (12).

3. The chamfering device for the outer circle of the annular gasket according to claim 1, characterized in that, The outer diameters of the first reference surface (11) and the second reference surface (21) gradually decrease in the direction from the first annular plate (10) toward the second annular plate (20).

4. The chamfering device for the outer circle of the annular gasket according to claim 1, characterized in that, The second annular plate (20) has a recess (14) on one of the second annular end face (22) and the first annular end face (12) facing the first annular plate (10), and a protrusion (23) on the other. The protrusion (23) is accommodated in the recess (14). The axial dimension of the protrusion (23) is greater than the axial dimension of the recess (14) so ​​that the other parts of the first annular end face (12) are spaced apart from the other parts of the second annular end face (22).

5. The chamfering device for the outer circle of the annular gasket according to claim 4, characterized in that, The recessed portion (14) is an annular ring located radially inside the first annular end face (12), and the protruding portion (23) is an annular ring located radially inside the second annular end face (22).

6. The chamfering device for the outer circle of the annular gasket according to claim 1, characterized in that, The first annular plate (10) and the second annular plate (20) are detachably connected.

7. The chamfering device for the outer circle of the annular gasket according to claim 6, characterized in that, The first annular plate (10) and the second annular plate (20) are connected by bolts (30).

8. A ring-shaped gasket, characterized in that, The annular gasket (40) is formed by the annular gasket chamfering processing device according to any one of claims 1-7.

9. The annular gasket according to claim 8, characterized in that, The annular gasket (40) is made of non-metallic material.

10. A wave-shaped sealing ring, characterized in that, The device includes a body portion (50), a clamping ring (60), and an annular gasket (40) as described in claim 8 or 9. An annular protrusion (51) is provided on the outer periphery of the body portion (50), and the annular gasket (40) is provided on both axial sides of the annular protrusion (51). The clamping ring (60) presses against the annular gasket (40) toward the annular protrusion (51).

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