A deformation-resistant containerized mechanical seal end cap

Abstract

This utility model discloses a deformation-resistant, cartridge-type mechanical seal end cap, specifically relating to the field of mechanical seal technology. It includes an end cap body with a circular structure. The surface of the end cap body has a mounting groove, and the interior of the mounting groove contains an anti-deformation structure. The anti-deformation structure includes a lower support plate fixedly installed inside the mounting groove, an upper support plate fixedly installed on top of the lower support plate, and several reinforcing ribs fixedly installed between the lower and upper support plates. A reinforcing ring is fixedly installed inside the mounting groove, and a positioning ring is fixedly installed at the bottom of the end cap body. The positioning ring contains a reinforcing ring, and its surface has annular protrusions. This utility model can efficiently distribute loads, avoid localized stress concentration, and enhance axial deformation resistance and its own strength. During operation, it can effectively resist deformation while ensuring good sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seal technology, and more specifically, to a deformation-resistant containerized mechanical seal end cap. Background Technology

[0002] A modular mechanical seal is a sealing device in which the various components of a mechanical seal are pre-assembled and then installed as a whole onto the equipment. It has the advantages of convenient installation and good sealing performance. As an important component of the modular mechanical seal, the end cap needs to withstand loads such as internal pressure and external impact forces.

[0003] However, in the existing technology, the gap between the mechanical seal end cap and the shaft has a poor sealing effect, which affects the overall sealing effect.

[0004] A search revealed that Chinese patent CN220317771U discloses an improved mechanical seal end cap. In this structure, the inner cylinder is sealed to the fermenter through a packing assembly, the upper cover is sealed to the fermenter through a sealing ring, and the upper cover is sealed to the rotating shaft through two sets of sealing bearings. This design prevents gas from escaping from the fermenter and also prevents outside air from easily entering the fermenter and contaminating its interior.

[0005] However, in actual use, the structure uses alloy steel as the main material of the end cap. Ordinary materials have limited strength, wear resistance and impact resistance, and are difficult to withstand the long-term effects of the above-mentioned complex loads. When subjected to the pressure of the internal medium of the equipment, external installation stress and vibration, the end cap is prone to deformation. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a deformation-resistant containerized mechanical seal end cap to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A deformation-resistant containerized mechanical seal end cap includes an end cap body, the end cap body adopts a circular structure, an installation groove is formed on the surface of the end cap body, and an anti-deformation structure is provided inside the installation groove;

[0009] The anti-deformation structure includes a lower support plate fixedly installed inside the mounting groove, an upper support plate fixedly installed on the top of the lower support plate, a plurality of reinforcing ribs fixedly installed between the lower support plate and the upper support plate, a reinforcing ring fixedly installed inside the mounting groove, a positioning ring fixedly installed at the bottom of the end cap body, and a reinforcing ring fixedly installed inside the positioning ring.

[0010] The surface of the positioning ring is provided with annular protrusions, and the reinforcing ribs are evenly distributed along the circumference of the end cap body. One end of the reinforcing rib is fixedly connected to the inner wall of the end cap body, and the other end extends away from the center of the end cap body and is connected to the reinforcing ring.

[0011] By adopting the above technical solution: the circular structure of the end cap body, combined with the anti-deformation structure in the mounting groove, can efficiently distribute the load and avoid local stress concentration. Furthermore, the annular protrusion of the positioning ring and the internal reinforcing ring enhance the axial deformation resistance and its own strength, thus significantly improving the overall deformation resistance and structural stability of the end cap.

[0012] As a further description of the above technical solution: a sealing mechanism is provided on one side of the positioning ring, the sealing mechanism including a sealing ring fixedly disposed on one side of the positioning ring, the sealing ring being made of rubber material;

[0013] The end cap body is provided with an outer layer, a reinforcing layer and an inner layer from the outside to the inside, and the reinforcing layer is made of reinforcing woven mesh.

[0014] By adopting the above technical solution, the rubber sealing ring on one side of the positioning ring forms an effective seal to prevent media leakage. Moreover, the outer layer of the end cap body and the reinforcing layer made of reinforcing woven mesh work together with the inner layer to enhance the overall structural strength and improve the sealing and protection capabilities, further ensuring the reliability of the end cap.

[0015] As a further description of the above technical solution: the outer layer is made of high manganese steel, and the inner layer is made of polytetrafluoroethylene.

[0016] The end cap body is made of high-strength alloy steel, and the reinforcing ribs are made of carbon fiber reinforced composite material.

[0017] By adopting the above technical solutions: the outer layer of high manganese steel improves wear resistance and impact resistance, the inner layer of polytetrafluoroethylene enhances sealing and corrosion resistance, the high-strength alloy steel end cap body ensures overall strength, and the reinforcing ribs of carbon fiber reinforced composite material strengthen the resistance to deformation. The synergy of these multiple aspects significantly improves the durability and reliability of the end cap.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] By setting up an anti-deformation structure, compared with the existing technology, the circular structure of the end cap body, together with the anti-deformation components in the mounting groove, can efficiently cope with various loads. Furthermore, the support frame formed by the lower support plate and the upper support plate can first bear part of the load and transfer it to the reinforcing rib. Since the reinforcing rib is evenly distributed along the circumference and connects the end cap body and the reinforcing ring, the radial force can be effectively dispersed and transferred to the periphery of the mounting groove through the reinforcing ring, avoiding local stress concentration. Secondly, the annular protrusion of the positioning ring increases the contact area with the mounting part, enhancing the axial deformation resistance. The internal reinforcing ring further enhances its strength, preventing the overall stability from being affected by the deformation of the positioning ring, thereby significantly improving the deformation resistance and structural reliability of the end cap.

[0020] By setting up a sealing mechanism, compared with existing technologies, the outer high-manganese steel resists external friction and impact, the reinforcing layer reinforces the woven mesh to improve overall rigidity and prevent deformation expansion, providing a structural foundation for sealing. Moreover, the inner polytetrafluoroethylene layer has both sealing and cushioning properties, which, together with the internal sealing components, enhances the sealing effect. Secondly, the high-strength alloy steel end cap body and the reinforcing ribs of carbon fiber reinforced composite material work together to resist deformation, ensuring the sealing surface fits and avoiding gap leakage. In addition, the rubber sealing ring generates pre-tightening force under compression, tightly fitting the positioning ring and the installation part, forming the first sealing barrier, effectively preventing media leakage and comprehensively improving sealing reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the anti-deformation structure of this utility model.

[0023] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the overall disassembled structure of this utility model.

[0025] Figure 5 This is a schematic diagram of the sealing mechanism of this utility model.

[0026] The attached diagram is labeled as follows: 1. End cap body; 2. Mounting groove; 3. Lower support plate; 4. Upper support plate; 5. Reinforcing rib; 6. Reinforcing ring; 7. Positioning ring; 8. Reinforcing ring; 9. Sealing ring; 10. Outer layer; 11. Reinforcing layer; 12. Inner layer. Detailed Implementation

[0027] 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.

[0028] The embodiments disclosed in this application are as follows: Figure 1-5 The diagram shows an anti-deformation containerized mechanical seal end cap, including an end cap body 1. The end cap body 1 has a circular structure, and an installation groove 2 is provided on the surface of the end cap body 1. An anti-deformation structure is provided inside the installation groove 2.

[0029] The anti-deformation structure includes a lower support plate 3 fixedly installed inside the mounting groove 2, an upper support plate 4 fixedly installed on the top of the lower support plate 3, several reinforcing ribs 5 fixedly installed between the lower support plate 3 and the upper support plate 4, a reinforcing ring 6 fixedly installed inside the mounting groove 2, a positioning ring 7 fixedly installed at the bottom of the end cap body 1, and a reinforcing ring 8 fixedly installed inside the positioning ring 7.

[0030] The surface of the positioning ring 7 is provided with annular protrusions, and the reinforcing ribs 5 are evenly distributed along the circumference of the end cap body 1. One end of the reinforcing rib 5 is fixedly connected to the inner wall of the end cap body 1, and the other end extends away from the center of the end cap body 1 and is connected to the reinforcing ring 6.

[0031] The end cap body 1 adopts a circular structure, which can achieve uniform stress distribution when subjected to uniform pressure. An installation groove 2 is provided on the surface of the end cap body 1, which provides installation space for the anti-deformation structure.

[0032] When the end cap is subjected to loads such as internal medium pressure, external installation stress, and vibration, the anti-deformation structure begins to function. The support frame formed by the lower support plate 3 and the upper support plate 4 first bears part of the load, and they transfer the load to the reinforcing ribs 5 between them. Since the reinforcing ribs 5 are evenly distributed along the circumference and their two ends are respectively connected to the inner wall of the end cap body 1 and the reinforcing ring 6, when subjected to radial force, they can effectively disperse the force to the end cap body 1 and the reinforcing ring 6. The reinforcing ring 6 further transmits the dispersed force to the end cap body 1 part around the entire mounting groove 2, avoiding local stress concentration.

[0033] Reference Figure 2-4 As shown, a sealing mechanism is provided on one side of the positioning ring 7. The sealing mechanism includes a sealing ring 9 fixedly disposed on one side of the positioning ring 7. The sealing ring 9 is made of rubber.

[0034] The end cap body 1 is provided with an outer layer 10, a reinforcing layer 11 and an inner layer 12 from the outside to the inside. The reinforcing layer 11 is made of reinforcing woven mesh.

[0035] Moreover, the annular protrusion on the surface of the positioning ring 7 increases the contact area with the installation part, and can better resist deformation when subjected to axial force. At the same time, the internal reinforcing ring 8 enhances the strength of the positioning ring 7 itself, preventing the positioning ring 7 from deforming under force and affecting the overall structural stability.

[0036] The outer layer 10 of the end cap body 1 is made of high manganese steel, which has high wear resistance and strength and can resist external friction and impact loads. Moreover, the reinforcing mesh of the reinforcing layer 11 acts like a skeleton, further improving the overall rigidity of the end cap body 1 and preventing the expansion of deformation.

[0037] Reference Figure 3 , 5 As shown, the outer layer 10 is made of high manganese steel, and the inner layer 12 is made of polytetrafluoroethylene.

[0038] The end cap body 1 is made of high-strength alloy steel, and the reinforcing rib 5 is made of carbon fiber reinforced composite material;

[0039] The polytetrafluoroethylene material of the inner layer 12 can buffer some of the pressure brought by the internal medium while ensuring a certain degree of sealing. The end cap body 1 made of high-strength alloy steel and the reinforcing rib 5 made of carbon fiber reinforced composite material work together to resist the deformation caused by various loads due to their excellent mechanical properties.

[0040] During equipment operation, the sealing ring 9 plays a crucial sealing role. Since the sealing ring 9 is made of rubber, it is subjected to a certain amount of compression deformation during installation, generating elastic pre-tightening force, which makes it tightly fit the contact surface between the positioning ring 7 and the installation part, forming the first sealing barrier and effectively preventing the medium from leaking from this part.

[0041] Furthermore, the inner layer of the end cap body 1 is made of polytetrafluoroethylene, which has good sealing properties. When combined with the internal sealing components, it further enhances the sealing effect. At the same time, the deformation resistance of the entire end cap ensures a good fit of the sealing surface, preventing leakage caused by increased sealing gap due to end cap deformation.

[0042] Working principle of this utility model:

[0043] This utility model is an anti-deformation containerized mechanical seal end cap. When the device is in use, the end cap body 1 adopts a circular structure, which can achieve uniform stress distribution when subjected to uniform pressure. An installation groove 2 is provided on the surface of the end cap body 1, which provides installation space for the anti-deformation structure.

[0044] When the end cap is subjected to loads such as internal medium pressure, external installation stress, and vibration, the anti-deformation structure begins to function. The support frame formed by the lower support plate 3 and the upper support plate 4 first bears part of the load, and they transfer the load to the reinforcing rib 5 between them. Since the reinforcing rib 5 is evenly distributed along the circumference and its two ends are respectively connected to the inner wall of the end cap body 1 and the reinforcing ring 6, when subjected to radial force, it can effectively disperse the force to the end cap body 1 and the reinforcing ring 6. The reinforcing ring 6 further transmits the dispersed force to the end cap body 1 part around the entire mounting groove 2, avoiding local stress concentration.

[0045] Moreover, the annular protrusion on the surface of the positioning ring 7 increases the contact area with the installation part, and can better resist deformation when subjected to axial force. At the same time, the internal reinforcing ring 8 enhances the strength of the positioning ring 7 itself, preventing the positioning ring 7 from deforming under force and affecting the overall structural stability.

[0046] The outer layer 10 of the end cap body 1 is made of high manganese steel, which has high wear resistance and strength and can resist external friction and impact loads. Moreover, the reinforcing mesh of the reinforcing layer 11 acts like a skeleton, further improving the overall rigidity of the end cap body 1 and preventing the expansion of deformation.

[0047] Furthermore, the polytetrafluoroethylene material of the inner layer 12 can buffer some of the pressure brought by the internal medium while ensuring a certain degree of sealing. The end cap body 1 made of high-strength alloy steel and the reinforcing rib 5 made of carbon fiber reinforced composite material work together to resist the deformation caused by various loads due to their excellent mechanical properties.

[0048] During equipment operation, the sealing ring 9 plays a crucial sealing role. Since the sealing ring 9 is made of rubber, it is subjected to a certain amount of compression deformation during installation, generating elastic pre-tightening force, which makes it tightly fit the contact surface between the positioning ring 7 and the installation part, forming the first sealing barrier and effectively preventing the medium from leaking from this part.

[0049] Furthermore, the inner layer of the end cap body 1 is made of polytetrafluoroethylene, which has good sealing properties. When combined with the internal sealing components, it further enhances the sealing effect. At the same time, the deformation resistance of the entire end cap ensures a good fit of the sealing surface, preventing leakage caused by increased sealing gap due to end cap deformation.

[0050] 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 deformation-resistant containerized mechanical seal end cap, comprising an end cap body (1), characterized in that: The end cap body (1) adopts a circular structure, and the surface of the end cap body (1) is provided with an installation groove (2), and the interior of the installation groove (2) is provided with an anti-deformation structure. The anti-deformation structure includes a lower support plate (3) fixedly installed inside the mounting groove (2), an upper support plate (4) fixedly installed on the top of the lower support plate (3), a number of reinforcing ribs (5) fixedly installed between the lower support plate (3) and the upper support plate (4), a reinforcing ring (6) fixedly installed inside the mounting groove (2), a positioning ring (7) fixedly installed at the bottom of the end cap body (1), and a reinforcing ring (8) fixedly installed inside the positioning ring (7).

2. The anti-deformation cartridge mechanical seal end cap according to claim 1, characterized in that: The surface of the positioning ring (7) is provided with annular protrusions. The reinforcing ribs (5) are evenly distributed along the circumference of the end cap body (1). One end of the reinforcing ribs (5) is fixedly connected to the inner wall of the end cap body (1), and the other end extends away from the center of the end cap body (1) and is connected to the reinforcing ring (6).

3. The anti-deformation cartridge mechanical seal end cap according to claim 1, characterized in that: A sealing mechanism is provided on one side of the positioning ring (7), the sealing mechanism including a sealing ring (9) fixedly disposed on one side of the positioning ring (7), the sealing ring (9) being made of rubber.

4. The anti-deformation cartridge mechanical seal end cap according to claim 3, characterized in that: The end cap body (1) is provided with an outer layer (10), a reinforcing layer (11) and an inner layer (12) from the outside to the inside. The reinforcing layer (11) is made of reinforcing woven mesh.

5. The anti-deformation cartridge mechanical seal end cap according to claim 4, characterized in that: The outer layer (10) is made of high manganese steel, and the inner layer (12) is made of polytetrafluoroethylene.

6. The anti-deformation cartridge mechanical seal end cap according to claim 1, characterized in that: The end cap body (1) is made of high-strength alloy steel, and the reinforcing rib (5) is made of carbon fiber reinforced composite material.

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