Mechanical sealing assembly not prone to deformation

Abstract

The utility model relates to the related technical field of mechanical sealing, and discloses a mechanical sealing assembly not prone to deformation, which comprises a connecting piece, a spring seat is attached to the outer wall of the connecting piece, a static ring outer shell is fixedly connected to the outer wall of the spring seat, and a static ring seat is slidably connected to the inner wall of the static ring outer shell. The outer wall of the static ring seat is fixedly connected with a telescopic rod, the outer wall of the telescopic rod is sleeved with a first spring, one end of the first spring is fixedly connected to the outer wall of the static ring seat, the other end of the first spring is fixedly connected to the outer wall of the spring seat, and a first sealing ring is arranged in the static ring seat. And one end of the static ring seat is fixedly connected with a static ring end face. According to the utility model, firstly, when the end face of the static ring is attached to the end face of the moving ring, the problem of leakage caused by difficulty in realizing high sealing is solved, and the effects of reducing fluid leakage, improving the operation efficiency of a system and reducing energy consumption are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to mechanical seals, and in particular to a mechanical seal component which is not easily deformed. Background Art

[0002] Mechanical seal assembly is a device used to prevent fluid leakage, usually composed of static ring, dynamic ring, spring, gasket and other parts. This sealing method relies on the contact of mechanical parts to achieve the sealing effect, so it is called mechanical seal. Mechanical seals have the advantages of good sealing performance, long service life and wide application range. They are widely used in various pumps, compressors, rotating machinery and other equipment. Efficient sealing can effectively prevent fluid leakage and protect equipment and working environment. Leakage will not only lead to energy waste, but also pollute the environment and may even cause safety accidents.

[0003] After searching, the announcement number CN217481953U discloses a mechanical seal assembly that is not easy to deform, including a device housing, a fixed limit plate and a connecting mechanism. The middle part of the device housing is connected with a mounting shaft, and a fixed connecting plate is arranged on the left side of the inside of the device housing. The fixed limit plate is arranged on the left side of the fixed connecting plate, and the fixed limit plate and the fixed connecting plate are limited by a fixed connecting column and a fixed connecting sleeve, and the fixed connecting column and the fixed connecting sleeve are connected by a thread, and the connecting mechanism is arranged on the right side of the device housing. The mechanical seal assembly that is not easy to deform has good overall fastness of the assembly, is not easy to deform, and prolongs the service life of the assembly as a whole. Combined with the setting of the connecting mechanism, the sealing performance is further improved, and at the same time, it plays a certain limiting role between the mounting shaft and the device housing, and improves the stability of the connection between the mounting shaft and the device housing.

[0004] This application uses a fixed mounting block and a fixed groove for easy installation, but the sealing is only performed by three sealing rings. This arrangement makes it unsuitable for use in places that require a high degree of sealing, and over time and with repeated use, it will experience wear and tear, leading to leakage problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a mechanical seal assembly that is not easily deformed, aiming to improve the difficulty in achieving a high degree of sealing, which will experience wear and tear over time and repeated use, leading to leakage problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical seal assembly that is not easy to deform, comprising a connecting piece, the outer wall of the connecting piece is fitted with a spring seat, the outer wall of the spring seat is fixedly connected to a stationary ring outer shell, the inner wall of the stationary ring outer shell is slidably connected to a stationary ring seat, the outer wall of the stationary ring seat is fixedly connected to a telescopic rod, the outer wall of the telescopic rod is sleeved with a spring 1, one end of the spring 1 is fixedly connected to the outer wall of the stationary ring seat, the other end of the spring 1 is fixedly connected to the outer wall of the spring seat, a sealing ring 1 is arranged inside the stationary ring seat, one end of the stationary ring seat is fixedly connected to a stationary ring end face, the outer wall of the connecting piece is provided with a dynamic ring outer shell, the inner wall of the dynamic ring outer shell is slidably connected to a dynamic ring seat, a spring 2 is arranged inside the dynamic ring outer shell, one end of the spring 2 is fixedly connected to the outer wall of the dynamic ring seat, a sealing assembly is arranged inside the dynamic ring seat, and the outer wall of the dynamic ring seat is fixedly connected to the dynamic ring end face.

[0007] Furthermore, the sealing assembly includes a second sealing ring, and an outer wall of the second sealing ring is arranged inside the dynamic ring seat.

[0008] Furthermore, the end face of the dynamic ring fits with the end face of the static ring, and the outer wall of the dynamic ring seat is fixedly connected to a limit rod.

[0009] Furthermore, the outer wall of the limiting rod is slidably connected to the inside of the outer shell of the moving ring, and a second sliding groove is provided on the inner wall of the outer shell of the moving ring.

[0010] Furthermore, an L-shaped sliding rod is fixedly connected to the outer wall of the stationary ring seat, and the outer wall of the L-shaped sliding rod is slidably connected to the interior of the stationary ring outer shell.

[0011] Furthermore, a slide groove 1 is provided inside the outer shell of the static ring, and the outer wall of the L-shaped slide rod is slidably connected to the inside of the slide groove 1.

[0012] Furthermore, a graphite sheet is fixedly connected to the outer wall of the end surface of the moving ring, and a ceramic coating is evenly coated on the outer wall of the end surface of the stationary ring.

[0013] Furthermore, alloy inner plates are provided inside the stationary ring seat and the dynamic ring seat.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, first, when the static ring end face and the dynamic ring end face are fitted together, the spring seat, the static ring outer shell, the telescopic rod, the spring 1, the static ring seat, the dynamic ring seat and the spring 2 are coordinated to make the static ring end face and the dynamic ring end face fit tightly together, and then the sealing ring 1 and the sealing ring 2 are coordinated to achieve high sealing, which solves the problem of leakage caused by difficulty in achieving high sealing, achieves the effect of reducing fluid leakage, thereby improving the operating efficiency of the system and reducing energy consumption.

[0016] 2. In the utility model, firstly, the movement of the stationary ring seat and the dynamic ring seat is guided by the limit rod and the L-shaped sliding rod to prevent them from being out of control. Then, the service life of the mechanical seal is improved by cooperating with the graphite sheet, ceramic coating and alloy inner plate, so as to achieve long-term stable operation, help protect the inside of the equipment from pollution, and extend the service life of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a mechanical seal assembly that is not easily deformed proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the static ring outer shell of a mechanical seal assembly that is not easily deformed proposed by the utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The utility model is a schematic diagram of the internal structure of a stationary ring seat of a mechanical seal assembly that is not easily deformed.

[0021] Legend:

[0022] 1. Connector; 2. Spring seat; 3. Stationary ring outer shell; 4. Telescopic rod; 5. Spring 1; 6. Stationary ring seat; 7. Sealing ring 1; 8. Stationary ring end face; 9. Moving ring outer shell; 10. Spring 2; 11. Moving ring seat; 12. Sealing ring 2; 13. Moving ring end face; 14. Limit rod; 15. Graphite sheet; 16. Ceramic coating; 17. Alloy inner plate; 18. L-shaped slide rod; 19. Slide groove 1; 20. Slide groove 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 - Figure 3The utility model provides an embodiment: a mechanical seal assembly that is not easy to deform, including a connecting piece 1, the outer wall of the connecting piece 1 is fitted with a spring seat 2, the outer wall of the spring seat 2 is fixedly connected to a stationary ring outer shell 3, the inner wall of the stationary ring outer shell 3 is slidably connected to a stationary ring seat 6, the outer wall of the stationary ring seat 6 is fixedly connected to a telescopic rod 4, the outer wall of the telescopic rod 4 is sleeved with a spring 5, one end of the spring 5 is fixedly connected to the outer wall of the stationary ring seat 6, the other end of the spring 5 is fixedly connected to the outer wall of the spring seat 2, and the interior of the stationary ring seat 6 is arranged There is a sealing ring 1 7, one end of the stationary ring seat 6 is fixedly connected to the stationary ring end face 8, the outer wall of the connecting piece 1 is provided with a moving ring outer shell 9, the inner wall of the moving ring outer shell 9 is slidably connected to the moving ring seat 11, a spring 2 10 is provided inside the moving ring outer shell 9, one end of the spring 2 10 is fixedly connected to the outer wall of the moving ring seat 11, a sealing assembly is provided inside the moving ring seat 11, the outer wall of the moving ring seat 11 is fixedly connected to the moving ring end face 13, and the sealing assembly includes a sealing ring 2 12, and the outer wall of the sealing ring 2 12 is provided inside the moving ring seat 11;

[0025] Specifically, first, the static ring end face 8 is fitted with the dynamic ring end face 13, so that the static ring end face 8 and the dynamic ring end face 13 apply pressure to each other, so that the static ring seat 6 slides on the inner wall of the static ring outer shell 3, and the dynamic ring seat 11 slides on the inner wall of the dynamic ring outer shell 9. Through the sliding of the static ring seat 6, the spring 15 is contracted between the static ring seat 6 and the spring seat 2, and the telescopic rod 4 guides the contraction of the spring 15 to ensure that it maintains the correct position during the contraction process. When the spring 15 contracts, a certain thrust is generated to push the static ring end face 8 to further fit with the dynamic ring end face 13. In this process, the sealing ring 17 inside the static ring seat 6 is sealed to prevent fluid leakage. When the dynamic ring seat 11 slides, it will cause the spring 2 10 to contract. Similarly, the thrust generated by the contraction of the spring 2 10 pushes the dynamic ring end face 13 to fit tightly with the static ring end face 8, ensuring that the sealing component is not easily deformed while being efficiently sealed.

[0026] Reference Figure 1 , Figure 3 and Figure 4 The moving ring end face 13 fits with the stationary ring end face 8, the outer wall of the moving ring seat 11 is fixedly connected to the limit rod 14, the outer wall of the limit rod 14 is slidably connected to the inside of the moving ring outer shell 9, the inner wall of the moving ring outer shell 9 is provided with a slide groove 20, the outer wall of the stationary ring seat 6 is fixedly connected to the L-shaped slide rod 18, the outer wall of the L-shaped slide rod 18 is slidably connected to the inside of the stationary ring outer shell 3, the inside of the stationary ring outer shell 3 is provided with a slide groove 19, the outer wall of the L-shaped slide rod 18 is slidably connected to the inside of the slide groove 19, the outer wall of the moving ring end face 13 is fixedly connected to the graphite sheet 15, the outer wall of the stationary ring end face 8 is evenly coated with a ceramic coating 16, and the interiors of the stationary ring seat 6 and the moving ring seat 11 are both provided with alloy inner plates 17;

[0027] Specifically, first, the sliding of the stationary ring seat 6 will drive the L-shaped slide bar 18 to move in the slide groove 19 inside the stationary ring outer shell 3, effectively preventing the dynamic ring end face 13 from driving the stationary ring seat 6 to rotate during operation, thereby ensuring the stability and reliability of the sealing assembly during movement. At the same time, the sliding of the dynamic ring seat 11 drives the limit rod 14 to move in the slide groove 20 inside the dynamic ring outer shell 9, so that the dynamic ring outer shell 9 can rotate synchronously with the dynamic ring seat 11, which not only ensures the flexibility of the dynamic ring, but also ensures the coordination and efficiency of the entire sealing assembly. In terms of reducing friction and wear, the graphite sheet 15 on the outer wall of the dynamic ring end face 13 and the ceramic coating 16 on the outer wall of the stationary ring end face 8 cooperate with each other, greatly reducing the friction coefficient, extending the service life of the sealing assembly, and ensuring the wear resistance and stability of the sealing assembly during long-term operation. Finally, the design of the alloy inner plate 17 inside the dynamic ring seat 11 and the stationary ring seat 6 makes the entire sealing assembly not easy to deform, suitable for long-term use, and ensures its stability and efficiency during long-term operation.

[0028] Working principle: When a mechanical seal assembly that is not easily deformed is needed, first, when the static ring end face 8 fits with the dynamic ring end face 13, the static ring seat 6 will slide on the inner wall of the static ring outer shell 3, and the dynamic ring seat 11 will slide on the inner wall of the dynamic ring outer shell 9. The sliding of the static ring seat 6 will cause the spring 15 to contract between the static ring seat 6 and the spring seat 2. When the spring 15 contracts, a certain thrust will be generated to push the static ring end face 8 to further fit with the dynamic ring end face 13. In this process, the sealing is performed by the sealing ring 17 inside the static ring seat 6. When the dynamic ring seat 11 slides, the spring 2 10 will contract, and then the thrust generated by the contraction of the spring 2 10 will push the dynamic ring end face 8 to fit with the dynamic ring end face 13. The surface 13 fits tightly with the static ring end face 8, achieving the effect of efficient sealing while not being easy to deform. When the static ring seat 6 slides, it will drive the L-shaped sliding rod 18 to slide inside the static ring outer shell 3, thereby preventing the dynamic ring end face 13 from driving the static ring seat 6 to rotate during operation. Then, when the dynamic ring seat 11 slides, it will drive the limit rod 14 to slide inside the dynamic ring outer shell 9, so that the dynamic ring outer shell 9 can rotate synchronously with the dynamic ring seat 11. Then, the graphite sheet 15 on the outer wall of the dynamic ring end face 13 cooperates with the ceramic coating 16 on the outer wall of the static ring end face 8 to reduce friction and wear. Finally, the dynamic ring seat 11 and the alloy inner plate 17 inside the static ring seat 6 are used to achieve non-deformation and suitable for long-term use.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical seal assembly that is not easily deformed, comprising a connecting piece (1), characterized in that: The outer wall of the connecting member (1) is fitted with a spring seat (2), the outer wall of the spring seat (2) is fixedly connected to a stationary ring outer shell (3), the inner wall of the stationary ring outer shell (3) is slidably connected to a stationary ring seat (6), the outer wall of the stationary ring seat (6) is fixedly connected to a telescopic rod (4), the outer wall of the telescopic rod (4) is sleeved with a spring 1 (5), one end of the spring 1 (5) is fixedly connected to the outer wall of the stationary ring seat (6), the other end of the spring 1 (5) is fixedly connected to the outer wall of the spring seat (2), and the inner wall of the stationary ring seat (6) is fixedly connected to the outer wall of the stationary ring seat (6). A sealing ring (7) is provided, one end of the stationary ring seat (6) is fixedly connected to a stationary ring end face (8), the outer wall of the connecting member (1) is provided with a moving ring outer shell (9), the inner wall of the moving ring outer shell (9) is slidably connected to a moving ring seat (11), a spring (10) is provided inside the moving ring outer shell (9), one end of the spring (10) is fixedly connected to the outer wall of the moving ring seat (11), a sealing assembly is provided inside the moving ring seat (11), and the outer wall of the moving ring seat (11) is fixedly connected to a moving ring end face (13).

2. A non-deformable mechanical seal assembly according to claim 1, characterized in that: The sealing assembly comprises a second sealing ring (12), the outer wall of which is arranged inside the dynamic ring seat (11).

3. The non-deformable mechanical seal assembly according to claim 1, characterized in that: The dynamic ring end surface (13) is in contact with the static ring end surface (8), and the outer wall of the dynamic ring seat (11) is fixedly connected to a limiting rod (14).

4. The non-deformable mechanical seal assembly according to claim 3, characterized in that: The outer wall of the limiting rod (14) is slidably connected to the interior of the outer shell of the moving ring (9), and a second sliding groove (20) is provided on the inner wall of the outer shell of the moving ring (9).

5. The non-deformable mechanical seal assembly according to claim 1, characterized in that: The outer wall of the stationary ring seat (6) is fixedly connected to an L-shaped sliding rod (18), and the outer wall of the L-shaped sliding rod (18) is slidably connected to the interior of the stationary ring outer shell (3).

6. The non-deformable mechanical seal assembly according to claim 5, characterized in that: A slide groove (19) is provided inside the static ring outer shell (3), and the outer wall of the L-shaped slide rod (18) is slidably connected inside the slide groove (19).

7. The non-deformable mechanical seal assembly according to claim 1, characterized in that: The outer wall of the moving ring end surface (13) is fixedly connected with a graphite sheet (15), and the outer wall of the stationary ring end surface (8) is evenly coated with a ceramic coating (16).

8. The non-deformable mechanical seal assembly according to claim 1, characterized in that: Alloy inner plates (17) are provided inside the stationary ring seat (6) and the dynamic ring seat (11).

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