Mechanical sealing assembly with double-face sealing effect

Abstract

The utility model provides a mechanical sealing assembly with a double-face sealing effect, and relates to the technical field of mechanical sealing assemblies, the mechanical sealing assembly comprises a sleeve, a static ring A and a static ring B. A clamping groove A is formed in the surface of the static ring A, a sealing gasket A is arranged in the clamping groove A, a clamping groove B is formed in the surface of the static ring B, a sealing gasket B is arranged in the clamping groove B, and the sealing gasket A is arranged in the sealing gasket B; a clamping block is fixedly installed on the surface of the static ring B, a sealing gasket C is arranged on the surface of the static ring B in a sleeved mode, a friction end face A is fixedly installed on the surface of the static ring A, and a friction end face B is fixedly installed on the surface of the static ring B. By arranging a static ring A, a static ring B, a sealing gasket A, a sealing gasket B, a sealing gasket C, a spring, an annular plate and a movable ring, the effect of conveniently disassembling, assembling and maintaining the interior of the sealing assembly is achieved while the two ends of the transmission shaft are sealed, so that the maintenance efficiency is improved, the structure is simple, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical sealing components, in particular to a mechanical sealing component with double-sided sealing effect. Background Art

[0002] A mechanical seal assembly with double-sided sealing effect generally refers to a mechanical seal device that can achieve effective sealing on both sides of a rotating shaft.

[0003] Publication No. CN213479189U discloses a mechanical seal assembly with double-sided sealing effect, including a pipeline, a sealing retaining ring is movably connected on the left side of the pipeline, a dynamic ring is sleeved on the outside of the sealing retaining ring, and a static ring is movably connected on the right side of the dynamic ring. The mechanical seal assembly with double-sided sealing effect covers the sealing retaining ring with the dynamic ring, and sequentially sleeves the dynamic ring, static ring, gland and annular seat on the outside of the pipeline, and extends the sealing cylinder to the inside of the pipeline by placing the sealing retaining ring on the left side of the pipeline, and by turning on the servo motor inside the sealing retaining ring, the output shaft of the servo motor drives the two-way threaded rod to rotate, and the rotation of the two-way threaded rod drives the sleeve outside thereof to move relative or toward each other, thereby causing the push rod to push the sealing ring out of the sealing cylinder and fit with the top of the pipeline, thereby achieving the purpose of double-sided sealing and good sealing effect, and facilitating the use of users. Although this type of sealing assembly has a good sealing effect, it is lacking in disassembly and maintenance of the sealing assembly. Since this type of sealing assembly does not have a quick-release structure, when it is necessary to inspect and maintain its interior, it needs to be disassembled with the help of tools before maintenance can be carried out, which leads to reduced maintenance efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: a mechanical seal component with double-sided sealing effect, comprising a sleeve, a static ring A and a static ring B, the surface of the static ring A is provided with a slot A, the interior of the slot A is provided with a sealing gasket A, the surface of the static ring B is provided with a slot B, the interior of the slot B is provided with a sealing gasket B, the surface of the static ring B is fixedly installed with a block, the surface of the static ring B is sleeved with a sealing gasket C, the surface of the static ring A is fixedly installed with a friction end face A, the surface of the static ring B is fixedly installed with a friction end face B, the interior of the sleeve is fixedly installed with a fixed block, the interior of the fixed block is slidably connected with a sliding rod, the surface of the sliding rod is sleeved with a spring, the surface of the sliding rod is fixedly installed with an annular plate, and the interior of the sleeve is inserted with a dynamic ring.

[0006] Preferably, the surface of the dynamic ring is provided with a limit groove, and the inner surface of the sleeve is fixedly installed with a limit block. Here, the design of the limit groove and the limit block has the effect of limiting the sleeve and the dynamic ring when the dynamic ring is installed and the sealing assembly is working.

[0007] Preferably, one end of the spring is connected to the surface of the annular plate, and the other end is connected to the surface of the fixed block. Here, the design of the spring plays a role in ensuring that the axial direction of the sealing end face is vertical.

[0008] Preferably, the number of the moving ring and the annular plate is two groups, and the two groups of moving rings and the annular plates are symmetrically distributed at both ends of the sleeve. Here, the symmetrical design of the moving ring and the annular plate has the effect of sealing both ends of the transmission shaft.

[0009] Preferably, the movable ring is slidably connected to the sleeve, and the annular plate is slidably connected to the sleeve. Here, the sliding design of the movable ring and the sleeve facilitates the mechanical disassembly and replacement of the movable ring, thereby facilitating maintenance by maintenance personnel and improving maintenance efficiency.

[0010] Preferably, the sealing pad A, the sealing pad B and the sealing pad C are all made of fluororubber. Here, fluororubber has acid and alkali corrosion resistance, which improves the sealing performance and also increases the service life of the sealing component.

[0011] Preferably, the limit block is slidably connected to the limit groove. Here, the sliding design of the limit block and the limit groove not only limits the moving ring, but also facilitates the alignment installation of the moving ring.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, by arranging the stationary ring A, the stationary ring B, the sealing gasket A, the sealing gasket B, the sealing gasket C, the spring, the annular plate and the dynamic ring, the two ends of the transmission shaft are sealed and the internal disassembly and maintenance of the sealing assembly are facilitated, thereby improving the maintenance efficiency, and the structure is simple and practical.

[0014] 2. In the utility model, the limiting groove and the limiting block are provided to limit the sleeve and the moving ring when the moving ring is installed and the sealing assembly is working, and also to facilitate the alignment installation of the moving ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a mechanical seal assembly with double-sided sealing effect is proposed for the utility model;

[0016] Figure 2The utility model provides a cross-sectional view of a sleeve, a stationary ring A, a stationary ring B and a dynamic ring in a mechanical seal assembly with a double-sided sealing effect;

[0017] Figure 3 The utility model provides a schematic diagram of the exploded structure of a mechanical seal assembly with double-sided sealing effect, including a static ring A, a static ring B, a dynamic ring, a friction end face A and a friction end face B;

[0018] Figure 4 The utility model proposes a mechanical seal assembly with double-sided sealing effect Figure 3 Enlarged view of point A in the middle.

[0019] Legend:

[0020] 1. Sleeve; 2. Stationary ring A; 3. Stationary ring B; 4. Slot A; 5. Sealing gasket A; 6. Slot B; 7. Sealing gasket B; 8. Sealing gasket C; 9. Block; 10. Friction end face A; 11. Friction end face B; 12. Fixed block; 13. Sliding rod; 14. Spring; 15. Ring plate; 16. Moving ring; 17. Limiting groove; 18. Limiting block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] See also Figure 1-4The utility model provides a technical solution: a mechanical seal assembly with double-sided sealing effect, including a sleeve 1, a stationary ring A2 and a stationary ring B3, a card groove A4 is provided on the surface of the stationary ring A2, a sealing gasket A5 is arranged inside the card groove A4, a card groove B6 is provided on the surface of the stationary ring B3, a sealing gasket B7 is arranged inside the card groove B6, a card block 9 is fixedly installed on the surface of the stationary ring B3, a sealing gasket C8 is sleeved on the surface of the stationary ring B3, and the sealing gasket A5, the sealing gasket B7 and the sealing gasket C8 are all made of fluororubber, and the fluororubber has acid resistance. Alkali corrosion resistance improves the sealing performance and also increases the service life of the sealing assembly. The surface of the static ring A2 is fixedly installed with a friction end surface A10, the surface of the static ring B3 is fixedly installed with a friction end surface B11, and the interior of the sleeve 1 is fixedly installed with a fixed block 12. The interior of the fixed block 12 is slidably connected with a slide rod 13, and the surface of the slide rod 13 is sleeved with a spring 14. One end of the spring 14 is connected to the surface of the annular plate 15, and the other end is connected to the surface of the fixed block 12. The design of the spring 14 ensures that the axial direction of the sealing end face is vertical.

[0025] See also Figure 1-4 A ring plate 15 is fixedly installed on the surface of the sliding rod 13, and a moving ring 16 is inserted into the interior of the sleeve 1. There are two groups of moving rings 16 and ring plates 15, and the two groups of moving rings 16 and ring plates 15 are symmetrically distributed at both ends of the sleeve 1. The symmetrical design of the moving ring 16 and the ring plate 15 has the effect of sealing both ends of the transmission shaft. The moving ring 16 is slidingly connected to the sleeve 1, and the ring plate 15 is slidingly connected to the sleeve 1. The sliding design of the moving ring 16 and the sleeve 1 makes it easy to disassemble and replace the mechanical energy of the moving ring 16, thereby facilitating maintenance personnel to maintain it and improving maintenance efficiency.

[0026] Embodiment 2

[0027] See also Figure 1-4 A limiting groove 17 is provided on the surface of the moving ring 16, and a limiting block 18 is fixedly installed on the inner surface of the sleeve 1. The design of the limiting groove 17 and the limiting block 18 has the effect of limiting the sleeve 1 and the moving ring 16 when the moving ring 16 is installed and the sealing assembly is working. The limiting block 18 is slidably connected to the limiting groove 17. The sliding design of the limiting block 18 and the limiting groove 17 has the effect of limiting the moving ring 16 while also facilitating the alignment installation of the moving ring 16.

[0028] Working principle: When installing the sealing assembly, first insert the dynamic ring 16 into the sleeve 1. At this time, the dynamic ring 16 will drive the ring 16-shaped plate 15 to slide inward, and the annular plate 15 will drive the slide bar 13 to slide inside the fixed block 12. After installing the dynamic ring 16, the sealing gasket A5 is sleeved in the groove A4, the sealing gasket B7 is set in the groove B6, and then the sealing gasket C8 is sleeved on the surface of the static ring B3. At this time, the static ring A2, sleeve 1 and static ring B3 are sleeved on the transmission shaft respectively. At this time, the installation of the sealing assembly can be completed. When it is necessary to maintain the interior, only the static ring B3 needs to be taken out. At this time, the annular plate 15 will be pushed out of the sleeve 1 by the elastic force of the spring 14. Wait for the dynamic ring 16, the static ring A2 and the static ring B3 to be installed. After the ring B3 is taken out, it can be maintained and replaced. The static ring A2, static ring B3, sealing gasket A5, sealing gasket B7, sealing gasket C8, spring 14, annular plate 15 and dynamic ring 16 seal the two ends of the transmission shaft while also facilitating the disassembly and maintenance of the interior of the sealing assembly, thereby improving the maintenance efficiency. When installing the dynamic ring 16, first align the limit block 18 with the limit groove 17 and then insert the limit block 18 into the limit groove 17. At this time, the installation of the dynamic ring 16 can be completed. The limit groove 17 and the limit block 18 limit the sleeve 1 and the dynamic ring 16 when the dynamic ring 16 is installed and the sealing assembly is working, and also facilitate the alignment installation of the dynamic ring 16.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A mechanical seal assembly with double-sided sealing effect, comprising a sleeve (1), a stationary ring A (2) and a stationary ring B (3), characterized in that: The surface of the stationary ring A (2) is provided with a groove A (4), and a sealing gasket A (5) is arranged inside the groove A (4); the surface of the stationary ring B (3) is provided with a groove B (6), and a sealing gasket B (7) is arranged inside the groove B (6); a block (9) is fixedly installed on the surface of the stationary ring B (3), and a sealing gasket C (8) is sleeved on the surface of the stationary ring B (3); a friction end surface A (10) is fixedly installed on the surface of the stationary ring A (2), and a friction end surface B (11) is fixedly installed on the surface of the stationary ring B (3); a fixed block (12) is fixedly installed inside the sleeve (1), and a sliding rod (13) is slidably connected inside the fixed block (12), a spring (14) is sleeved on the surface of the sliding rod (13), and an annular plate (15) is fixedly installed on the surface of the sliding rod (13); and a dynamic ring (16) is inserted into the sleeve (1).

2. The mechanical seal assembly with double-sided sealing effect according to claim 1, characterized in that: A limiting groove (17) is provided on the surface of the moving ring (16), and a limiting block (18) is fixedly mounted on the inner surface of the sleeve (1).

3. The mechanical seal assembly with double-sided sealing effect according to claim 1, characterized in that: One end of the spring (14) is connected to the surface of the annular plate (15), and the other end is connected to the surface of the fixed block (12).

4. The mechanical seal assembly with double-sided sealing effect according to claim 1, characterized in that: The number of the moving rings (16) and the annular plates (15) is two groups, and the two groups of moving rings (16) and the annular plates (15) are symmetrically distributed at the two ends of the sleeve (1).

5. The mechanical seal assembly with double-sided sealing effect according to claim 1, characterized in that: The moving ring (16) is slidably connected to the sleeve (1), and the annular plate (15) is slidably connected to the sleeve (1).

6. The mechanical seal assembly with double-sided sealing effect according to claim 1, characterized in that: The sealing gasket A (5), the sealing gasket B (7) and the sealing gasket C (8) are all made of fluororubber.

7. The mechanical seal assembly with double-sided sealing effect according to claim 2, characterized in that: The limiting block (18) is slidably connected to the limiting groove (17).

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