Axial floating sealing ring

Abstract

The utility model discloses an axial floating sealing ring which comprises a sealing ring body and 2-4 axial adjusting mechanisms annularly arranged on the outer side of the sealing ring body, and each axial adjusting mechanism comprises a base protruding outwards and arranged on the sealing ring body, a sliding groove formed in the base and a guide rail arranged in the sliding groove. The guide rail is arranged in the axial direction of the sealing ring body, and the sealing ring body is supported and axially adjusted through the guide rail. The problems that an existing sealing ring is troublesome in axial adjustment and high in installation difficulty can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and particularly relates to an axially floating sealing ring. Background Art

[0002] When a rotary kiln of a new dry process, a drying drum for melamine, and other drum equipment with side openings are connected to an external feeding and discharging structure, a sealing ring is required to seal the connection, so as to ensure the sealing effect of the drum itself. However, since the drum equipment rotates, while the external feeding and discharging structure is generally a fixed structure, there is relative axial floating between the external feeding and discharging structure and the cylinder body, resulting in difficulty in achieving effective sealing simply by adding a flange with a sealing ring outside the drum. Therefore, a sealing ring is needed, but the sealing ring cannot be completely fixed to the flange. Currently, generally, the sealing ring is installed on a hanging rod, and the sealing ring is suspended by the hanging rod and then fixed to a fixed surface such as a wall top, so that the sealing ring remains relatively stationary when the drum rolls and the sealing performance is ensured. However, when axial floating adjustment is required, it is difficult to adjust the axial position during the fixing process of the current sealing ring installation structure, resulting in high installation difficulty and poor flexibility in adjustment after installation. Summary of the Invention

[0003] In order to solve certain or some technical problems existing in the prior art, the purpose of the present application is to provide an axially floating sealing ring, which can solve the problems of troublesome axial adjustment and high installation difficulty of the existing sealing ring.

[0004] To solve the above-mentioned existing technical problems, the purpose of the present application is achieved by adopting the following technical solutions:

[0005] An axially floating sealing ring, characterized in that it includes a sealing ring body and 2 to 4 axial adjustment mechanisms arranged outside the sealing ring body. The axial adjustment mechanism includes a base protruding outward on the sealing ring body, a chute arranged on the base, and a guide rail arranged in the chute. The guide rail is arranged along the axial direction of the sealing ring body, and the sealing ring body is supported and axially adjusted through the guide rail.

[0006] Preferably, the sealing ring body includes a first sealing component and a second sealing component. A circle of bolt connection holes is arranged between the first sealing component and the second sealing component. Both the first sealing component and the second sealing component include two semi-circular sealing outer rings arranged symmetrically. One side of the first sealing component and / or the second sealing component is provided with two semi-circular sealing inner rings. Connection structures are arranged at both ends of the sealing outer ring, and both ends of the two sealing outer rings are connected and fixed through the connection structures.

[0007] Preferably, the connecting structure is an angle iron structure with mounting holes, the outer sealing ring is a metal structure, and the inner sealing ring is made of wear-resistant material.

[0008] Preferably, the base is arranged on the first sealing assembly. Two pulley seats are arranged on one side of the base, and limit pulleys are arranged on the pulley seats. A chute is formed between the two limit pulleys, and both sides of the guide rail are slidably arranged between the two limit pulleys.

[0009] Preferably, a circular stop block is arranged on the pulley seat, and one side of the guide rail is limited by the circular stop block.

[0010] Preferably, two auxiliary wheel seats are arranged on the second sealing assembly, and auxiliary wheels are arranged on the auxiliary wheel seats. The two auxiliary wheels are arranged on the other side of the base, and both sides of the guide rail are limited and slid by four wheels.

[0011] Preferably, a connecting rod is arranged between the two auxiliary wheel seats.

[0012] Preferably, 2 axial adjustment mechanisms are arranged on the outer side of the sealing ring body in a circumferential manner, and the axial adjustment mechanisms are arranged on the outer sides of both ends of the outer sealing ring.

[0013] Preferably, positioning holes are arranged at both ends of the guide rail.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] Since the sealing ring body is slidably connected to the guide rail through the chute on the base, the guide rail can not only support and limit the sealing ring body to prevent it from rotating with the roller, but also enable it to perform automatic floating adjustment in the axial position. When relative axial movement occurs between the roller device and the external feeding and discharging structure during operation, it can avoid problems caused by the inability of the sealing ring body to move axially. Moreover, the installation position of the sealing ring body can be adjusted flexibly, and it will not cause problems such as high precision requirements for its installation position and troublesome axial adjustment due to fixed installation, effectively solving the problems of troublesome axial adjustment and high installation difficulty of the existing sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is an enlarged view of the axial adjustment mechanism in the present utility model;

[0018] In the figure: 1. Axial adjustment mechanism; 2. Pulley seat; 3. Limit pulley; 4. Circular stop block; 5. Auxiliary wheel; 6. Connecting rod; 7. Auxiliary wheel seat; 8. First sealing assembly; 9. Second sealing assembly; 10. Bolt connection hole; 11. Sealing ring body; 12. Sealing outer ring; 13. Sealing inner ring; 14. Connection structure; 15. Guide rail; 16. Positioning hole; 17. Chute; 18. Base. Specific embodiments

[0019] Next, in combination with the accompanying drawings and specific embodiments, the present application will be further described. It should be noted that, on the premise of non-conflict, the following-described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0020] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0021] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0022] As Figure 1 and Figure 2 shown, an axially floating sealing ring includes a sealing ring body 11 and 2 to 4 axial adjustment mechanisms 1 arranged around the outside of the sealing ring body 11. The axial adjustment mechanism 1 includes a base 18 protruding outwardly on the sealing ring body 11, a chute 17 provided on the base 18, and a guide rail 15 provided in the chute 17. The guide rail 15 is arranged along the axial direction of the sealing ring body 11, and the sealing ring body 11 is supported and axially adjusted by the guide rail 15.

[0023] During actual use, the sealing ring body 11 is located on the flange outside the drum, and the sealing ring body 11 is installed on the external feeding and discharging structure. Since the sealing ring body 11 is slidably connected to the guide rail 15 through the chute 17 on the base 18, the guide rail 15 can not only support and limit the sealing ring body 11 to prevent it from rotating with the drum, but also enable it to perform automatic floating adjustment in the axial position. When relative axial movement occurs between the drum equipment and the external feeding and discharging structure during operation, it can prevent problems caused by the inability of the sealing ring body 11 to move axially. Moreover, the installation position of the sealing ring body 11 can be adjusted flexibly, without the problems of high precision requirements for its installation position and troublesome axial adjustment due to fixed installation, effectively solving the problems of troublesome axial adjustment and high installation difficulty of the existing sealing ring.

[0024] Further improvement is made that the sealing ring body 11 includes a first sealing component 8 and a second sealing component 9. A circle of bolt connection holes 10 is provided around between the first sealing component 8 and the second sealing component 9. Both the first sealing component 8 and the second sealing component 9 include two sealing outer rings 12 symmetrically arranged in a semicircular shape. On one side of the first sealing component 8 and / or the second sealing component 9, there are two semicircular sealing inner rings 13. Connection structures 14 are provided at both ends of the sealing outer ring 12, and the two ends of the two sealing outer rings 12 are connected and fixed through the connection structures 14.

[0025] The sealing ring body 11 is composed of two circular first sealing components 8 and second sealing components 9. After bolts are installed through the bolt connection holes 10 between the first sealing component 8 and the second sealing component 9 and tightened, the first sealing component 8 and the second sealing component 9 can be located on both sides of the flange of the cylinder body respectively. At the same time, on at least one of the first sealing component 8 and the second sealing component 9, a wear-resistant ring composed of two semicircular sealing inner rings 13 is installed through screws or the like. By contacting the flange with the wear-resistant ring, the sealing performance can be improved while ensuring the service life. For the convenience of installation, a connection structure 14 is installed at each end of the sealing outer ring 12, so that the two ends of the two sealing outer rings 12 can be connected and fixed through the connection structure 14 to form a circular sealing ring, and can also be disassembled to make the installation more convenient and flexible.

[0026] Even further improvement is made that the connection structure 14 is an angle iron structure with installation holes, the sealing outer ring 12 is a metal structure, and the sealing inner ring 13 is a wear-resistant material.

[0027] When docking the two connection structures 14, they can be fastened only by bolts, which is more convenient for disassembly and assembly and has a simpler structure. At the same time, the outer sealing ring 12 is made of a metal structure, which has better rigidity after installation, while the inner sealing ring 13 is made of wear-resistant material. After contacting with the flange, it can not only play a good sealing role but also extend the service life.

[0028] Further improvement is that the base 18 is arranged on the first sealing assembly 8. Two pulley seats 2 are arranged on one side of the base 18. Limiting pulleys 3 are arranged on the pulley seats 2. A chute 17 is formed between the two limiting pulleys 3. Both sides of the guide rail 15 are slidably arranged between the two limiting pulleys 3.

[0029] The installation of the base 18 on the first sealing assembly 8 can make the weight of the entire sealing ring body 11 lighter. The pulley seats 2 are installed on one side of the base 18 by bolts. The base 18 can play a role in limiting the guide rail 15. Through the two limiting pulleys 3, the relative movement between the sealing ring body 11 and the guide rail 15 can be made more flexible, avoiding jamming.

[0030] Further improvement is that a circular stop block 4 is arranged on the pulley seat 2, and one side of the guide rail 15 is limited by the circular stop block 4.

[0031] When limiting the guide rail 15, in order to prevent the guide rail 15 from directly contacting the base 18, a circular stop block 4 is formed on the pulley seat 2. One side of the guide rail 15 contacts and is limited by the circular stop block 4, which can make the contact area smaller and the friction smaller during movement.

[0032] Further improvement is that two auxiliary pulley seats 7 are arranged on the second sealing assembly 9. Auxiliary wheels 5 are arranged on the auxiliary pulley seats 7. The two auxiliary wheels 5 are arranged on the other side of the base 18. Both sides of the guide rail 15 are limited and slide through four wheels; A connecting rod 6 is arranged between the two auxiliary pulley seats 7.

[0033] Although the second sealing assembly can be relatively positioned with the first sealing assembly 8 by bolts during use, in order to improve the overall installation stability and also to improve the relative stability between the sealing ring body 11 and the guide rail 15, two auxiliary pulley seats 7 with auxiliary wheels 5 are installed on the second sealing assembly 9. After both sides of the guide rail 15 are limited and slide through four wheels, the above problems can be effectively solved. Since the span of the auxiliary pulley seats 7 is relatively large and it is easy to be deformed by vibration, a connecting rod 6 is installed in the middle area between the two auxiliary pulley seats 7. The connecting rod 6 acts as a reinforcing rib, which can make its rigidity better.

[0034] Further improved, two of the axial adjustment mechanisms 1 are provided on the outer ring of the sealing ring body 11, and the axial adjustment mechanisms 1 are arranged on the outer sides of both ends of the sealing outer ring 12.

[0035] During the actual assembly process, relative fixation can be achieved through the two axial adjustment mechanisms 1, with fewer required structures and lower costs. Moreover, the two axial adjustment mechanisms 1 are symmetrically installed at the ends of the two sealing outer rings 12.

[0036] Further improved, positioning holes 16 are provided at both ends of the guide rail 15.

[0037] The guide rail 15 can be fixedly installed through the positioning holes 16, and the installation position is more flexible.

[0038] The above embodiments are only the preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantive changes and substitutions made by those skilled in the art based on the present application belong to the scope of protection required by the present application.

Claims

1. An axially floating seal ring, characterized in that: It includes a sealing ring body (11), and 2 to 4 axial adjustment mechanisms (1) arranged around the outside of the sealing ring body (11). The axial adjustment mechanism (1) includes a base (18) protruding outwardly on the sealing ring body (11), a chute (17) arranged on the base (18), and a guide rail (15) arranged in the chute (17). The guide rail (15) is arranged along the axial direction of the sealing ring body (11), and the sealing ring body (11) is supported and axially adjusted through the guide rail (15).

2. The axial floating seal ring according to claim 1, characterized in that: The sealing ring body (11) includes a first sealing component (8) and a second sealing component (9). A circle of bolt connection holes (10) is arranged around between the first sealing component (8) and the second sealing component (9). Both the first sealing component (8) and the second sealing component (9) include two sealing outer rings (12) symmetrically arranged in a semi-circular shape. On one side of the first sealing component (8) and / or the second sealing component (9), there are two semi-circular sealing inner rings (13). Connection structures (14) are arranged at both ends of the sealing outer ring (12), and both ends of the two sealing outer rings (12) are connected and fixed through the connection structures (14).

3. The axial floating seal ring according to claim 2, characterized in that: The connection structure (14) is an angle iron structure with mounting holes. The sealing outer ring (12) is a metal structure, and the sealing inner ring (13) is a wear-resistant material.

4. The axial floating seal ring according to claim 2, characterized in that: The base (18) is arranged on the first sealing component (8). On one side of the base (18), there are two pulley seats (2), and limit pulleys (3) are arranged on the pulley seats (2). The chute (17) is formed between the two limit pulleys (3), and both sides of the guide rail (15) are slidably arranged between the two limit pulleys (3).

5. The axial floating seal ring according to claim 4, characterized in that: A circular stop block (4) is arranged on the pulley seat (2), and one side of the guide rail (15) is limited by the circular stop block (4).

6. The axial floating seal ring according to claim 2, wherein: Two auxiliary wheel seats (7) are arranged on the second sealing component (9), and auxiliary wheels (5) are arranged on the auxiliary wheel seats (7). The two auxiliary wheels (5) are arranged on the other side of the base (18), and both sides of the guide rail (15) are limited and slid by four wheels.

7. The axial floating seal ring according to claim 6, characterized in that: A connecting rod (6) is arranged between the two auxiliary wheel seats (7).

8. The axial floating seal ring according to claim 2, wherein: There are 2 axial adjustment mechanisms (1) arranged around the outside of the sealing ring body (11), and the axial adjustment mechanisms (1) are arranged outside both ends of the sealing outer ring (12).

9. The axial floating seal ring according to claim 1, characterized in that: Positioning holes (16) are arranged at both ends of the guide rail (15).

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