A toothed roller end face labyrinth seal structure

Abstract

The utility model relates to tooth roll sealing technical field discloses a kind of tooth roll end face labyrinth seal structure, including roller body, the outer wall of roller body upper and lower end is equipped with sealing mechanism, the sealing mechanism is used to block dust and impurity intrusion tooth roll end face and installation shaft gap, the outer wall of roller body is equipped with multiple fixed mechanism, the fixed mechanism is used to detachable replacement tooth cover, the sealing mechanism includes stator, the stator is installed in the outer wall top of roller body, the outer wall middle part of stator is rotatably connected with connecting ring two, the inner wall middle part of stator is equipped with sealing ring, the outer wall top of sealing ring is fixedly connected with rotor, the inner wall middle part of rotor is rotatably connected with connecting ring one. In the utility model, sealing ring is fixed in rotor bottom, for sealing connection with stator, connecting ring two in stator outside middle part is used to connect end face body, connecting ring one in rotor is used to connect roller shaft body.

Description

Technical Field

[0001] This utility model relates to the field of toothed roller sealing technology, and in particular to a labyrinth seal structure for the end face of a toothed roller. Background Technology

[0002] A toothed roller is a cylindrical core mechanical component with regularly toothed surfaces. Its structure mainly includes a roller body, a roller shaft, and end faces. The tooth shape on the roller body surface needs to be designed in different forms according to processing requirements. The roller shaft is used to connect with drive and support components, and the end faces are often used in conjunction with sealing structures to ensure operational stability. The core function of a toothed roller is to process materials through the mechanical interaction between the teeth and the material, such as extrusion, shearing, grinding, and meshing traction. Its operation depends on a reasonable tooth arrangement and the coordination of roller body movement. The design must consider tooth adaptability, structural strength, and compatibility with other equipment components. The overall design must meet the requirements of efficient material processing and long-term stable operation, while also facilitating subsequent maintenance to ensure continued processing capability.

[0003] The core mechanical structural components of a toothed roller include the roller body, roller shaft, toothed structure, and end auxiliary structures. The roller body is a cylindrical main body and serves as the load-bearing foundation for the toothed structure. The roller shaft is located at both ends of the roller body and is used to connect with the drive device and support components to realize the rotation of the roller body. The toothed structure is machined on the surface of the roller body and is arranged in a regular pattern to adapt to the material handling requirements. The end auxiliary structures include end face planes and connecting components. The end face planes are used to cooperate with the sealing device, and the connecting components help to fix the roller body and roller shaft. All components work together to form a complete toothed roller, ensuring that it can realize the material processing function through mechanical movement, while ensuring structural stability and assembly adaptability. However, existing toothed rollers lack a labyrinth seal structure between the end face and the mounting shaft. Dust and impurities can easily enter the gap between the end face of the toothed roller and the mounting shaft, leading to accelerated wear and shortened life of bearings and other components. The seal is prone to failure, causing frequent downtime for maintenance. The toothed roller has poor operating stability, and the overall reliability of the components is greatly reduced. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a labyrinth seal structure on the end face of a toothed roller, which aims to improve the problem that the existing technology lacks a labyrinth seal structure between the end face of the toothed roller and the mounting shaft, making it easy for dust and impurities to enter the gap between the end face of the toothed roller and the mounting shaft, resulting in accelerated wear and shortened life of components such as bearings, easy seal failure leading to frequent downtime for maintenance, poor operating stability of the toothed roller, and a significant decrease in the overall reliability of the component.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a labyrinth-type sealing structure for a toothed roller end face, comprising a roller body, with sealing mechanisms installed at both the upper and lower ends of the outer wall of the roller body. The sealing mechanisms are used to prevent dust and impurities from entering the gap between the toothed roller end face and the mounting shaft. Multiple fixing mechanisms are installed on the outer wall of the roller body, and the fixing mechanisms are used for detachable replacement of the toothed sleeve. The sealing mechanism includes a stator, which is installed on the top of the outer wall of the roller body. A second connecting ring is rotatably connected to the middle of the outer wall of the stator. A sealing ring is installed in the middle of the inner wall of the stator. A rotor is fixedly connected to the top of the outer wall of the sealing ring, and a first connecting ring is rotatably connected to the middle of the inner wall of the rotor.

[0006] As a further description of the above technical solution:

[0007] The fixing mechanism includes a connecting plate, which is fixedly connected to the outer wall of the roller body. A fixing frame is fixedly connected to the front side of the outer wall of the connecting plate. A connecting block is installed on the front side of the outer wall of the fixing frame. A fixing block is fixedly connected to the front side of the outer wall of the connecting block. A tooth is fixedly connected to the front side of the outer wall of the fixing block. A locking assembly is installed on the rear side of the outer wall of the tooth.

[0008] As a further description of the above technical solution:

[0009] The engaging assembly includes a rotating shaft, which is rotatably connected to the upper and lower sides of the inner wall of the fixed frame. A threaded rod is fixedly connected to the front side of the outer wall of the upper rotating shaft, and a nut is threadedly connected to the front side of the outer wall of the threaded rod. A limit plate is provided on the rear side of the outer wall of the nut.

[0010] As a further description of the above technical solution:

[0011] The roller body has end face bodies installed on both the upper and lower sides of its outer wall.

[0012] As a further description of the above technical solution:

[0013] A roller shaft is installed in the middle of the inner wall of the roller body.

[0014] As a further description of the above technical solution:

[0015] A connecting pipe is installed on the top of the outer wall of the roller body, and multiple balls are installed on the outer wall of the connecting pipe.

[0016] As a further description of the above technical solution:

[0017] A connecting pipe is installed on the outer wall of the ball.

[0018] As a further description of the above technical solution:

[0019] A flange is fixedly connected to the bottom of the outer wall of the roller body, and bolts are threaded around the outer wall of the flange.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the sealing ring is fixed at the bottom of the rotor for sealing connection with the stator. The second connecting ring in the middle of the outer side of the stator is used to connect the end face body, and the first connecting ring inside the rotor is used to connect the roller shaft body. This can prevent dust and impurities from entering the gap between the toothed roller end face and the mounting shaft, protect bearings and other components, reduce wear to extend service life, reduce downtime maintenance caused by seal failure, ensure stable operation of the toothed roller, and improve the overall reliability of the component.

[0022] 2. In this utility model, the tooth head is connected to the connecting block by being fixed to the front side of the fixing block. The threaded rod can rotate within the fixing frame by means of the rotating shaft. The rotating nut can fit against the front side of the connecting block through the limiting plate. This can avoid replacing the entire tooth roller after the tooth head is partially worn, reduce material waste and cost, make individual replacement operation convenient, shorten maintenance downtime, ensure the continuous and efficient operation of the tooth roller, and improve the economy and practicality of the component. Attached Figure Description

[0023] Figure 1 This is a perspective view of a labyrinth-type sealing structure for the end face of a toothed roller proposed in this utility model.

[0024] Figure 2 This is a front view of a labyrinth seal structure for the toothed roller end face proposed in this utility model;

[0025] Figure 3 This is a top view of a labyrinth seal structure for the end face of a toothed roller proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of a labyrinth-type sealing structure for the toothed roller end face proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of a labyrinth-type sealing structure on the end face of a toothed roller proposed in this utility model.

[0028] Legend:

[0029] 1. Roller body; 2. Sealing mechanism; 201. Stator; 202. Sealing ring; 203. Rotor; 204. Connecting ring one; 205. Connecting ring two; 3. Fixing mechanism; 301. Connecting plate; 302. Fixing frame; 303. Connecting block; 304. Fixing block; 305. Tooth head; 306. Engaging assembly; 3061. Rotating shaft; 3062. Threaded rod; 3063. Nut; 3064. Limiting plate; 4. End face body; 5. Roller shaft body; 6. Connecting pipe one; 7. Ball bearing; 8. Connecting pipe two; 9. Flange; 10. Bolt. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides a labyrinth-type sealing structure for the toothed roller end face, including a roller body 1. Sealing mechanisms 2 are installed at both the upper and lower ends of the outer wall of the roller body 1. The sealing mechanisms 2 are used to prevent dust and impurities from entering the gap between the toothed roller end face and the mounting shaft. Multiple fixing mechanisms 3 are installed on the outer wall of the roller body 1. The fixing mechanisms 3 are used for detachable replacement of the toothed sleeve. The sealing mechanism 2 includes a stator 201, which is installed on the top of the outer wall of the roller body 1. A connecting ring 205 is rotatably connected to the middle of the outer wall of the stator 201. A sealing ring 202 is installed in the middle of the inner wall of the stator 201. A rotor 203 is fixedly connected to the top of the outer wall of the sealing ring 202. A connecting ring 204 is rotatably connected to the middle of the inner wall of the rotor 203.

[0032] Specifically, the sealing ring 202 is fixed to the bottom of the rotor 203 and can form a tight sealing connection with the stator 201, effectively blocking the intrusion path of external dust and impurities. The connecting ring 205 installed in the middle of the outer side of the stator 201 is used to achieve a stable assembly with the end face 4, while the connecting ring 204 installed inside the rotor 203 is used to precisely mate with the roller shaft 5. The three work together to form a complete sealing and connection system, which can specifically block dust and impurities from entering the gap between the toothed roller end face and the mounting shaft, avoid impurities from causing wear on core components such as bearings, significantly extend the service life of components, reduce the frequency of downtime maintenance caused by seal failure, ensure the stability of the toothed roller during operation, and further improve the overall reliability of the entire assembly.

[0033] Reference Figure 1 , Figure 2 and Figure 5The fixing mechanism 3 includes a connecting plate 301, which is fixedly connected to the outer wall of the roller body 1. A fixing frame 302 is fixedly connected to the front side of the outer wall of the connecting plate 301. A connecting block 303 is installed on the front side of the outer wall of the fixing frame 302. A fixing block 304 is fixedly connected to the front side of the outer wall of the connecting block 303. A tooth 305 is fixedly connected to the front side of the outer wall of the fixing block 304. A locking assembly 306 is installed on the rear side of the outer wall of the tooth 305. The locking assembly 306 includes a rotating shaft 3061, which is rotatably connected to the upper and lower sides of the inner wall of the fixing frame 302. A threaded rod 3062 is fixedly connected to the front side of the outer wall of the upper rotating shaft 3061. A nut 3063 is threadedly connected to the front side of the outer wall of the threaded rod 3062. A limit plate 3064 is provided on the rear side of the outer wall of the nut 3063.

[0034] Specifically, the toothed head 305 is fixed to the front of the fixing block 304, forming a stable connection with the connecting block 303. The threaded rod 3062 can rotate flexibly within the fixing frame 302 via the rotating shaft 3061. When the nut 3063 is rotated, it can be tightly fitted to the front of the connecting block 303 with the help of the limiting plate 3064, thereby locking the installation position of the toothed head 305 and ensuring that it does not shift during operation. The detachable toothed head 305 design can avoid the need to replace the entire toothed roller due to local wear of the toothed head 305, greatly reducing material waste and lowering equipment maintenance costs. The replacement operation of a single toothed head 305 is simple and quick, without disassembling the entire toothed roller structure, which can significantly shorten maintenance downtime, ensure the continuous and efficient operation of the toothed roller, and further improve the economy and practicality of the component.

[0035] Reference Figure 1 , Figure 2 and Figure 3 The roller body 1 has end face bodies 4 installed on both the upper and lower sides of its outer wall. The roller shaft body 5 is installed in the middle of the inner wall of the roller body 1. The roller shaft body 5 has a connecting pipe 6 installed on the top of its outer wall. Multiple balls 7 are installed on the outer wall of the connecting pipe 6. The connecting pipe 8 is installed on the outer wall of the balls 7. The bottom of the outer wall of the roller shaft body 5 is fixedly connected to a flange 9. Bolts 10 are threaded around the outer wall of the flange 9.

[0036] Specifically, the roller body 5 is used to drive the roller body 1 to rotate through the end face body 4. The connecting pipe 1 6 is connected to the external connecting pipe 2 8 by installing multiple balls 7, which is used to assist the rotation of the roller body 5. The flange 9 installed at the bottom of the roller body 5 is externally connected to other components by bolts 10.

[0037] Working principle: The sealing ring 202 is fixed at the bottom of the rotor 203 and is used to seal the connection with the stator 201. The connecting ring 205 installed in the middle of the outer side of the stator 201 is used to connect with the end face 4, while the connecting ring 204 installed in the rotor 203 is used to connect with the roller shaft 5. This can prevent dust and impurities from entering the gap between the toothed roller end face and the mounting shaft, protect the bearings and other components, reduce wear and extend service life, reduce downtime maintenance caused by seal failure, ensure stable operation of the toothed roller, and improve the overall reliability of the components.

[0038] The toothed head 305 is connected to the connecting block 303 by being fixed to the front side of the fixing block 304. The threaded rod 3062 can rotate within the fixing frame 302 via the rotating shaft 3061. The rotating nut 3063 can fit against the front side of the connecting block 303 via the limiting plate 3064. This avoids the need to replace the entire toothed roller after the toothed head 305 is partially worn, reducing material waste and costs. Individual replacement is convenient, shortening maintenance downtime, ensuring continuous and efficient operation of the toothed roller, and improving the economy and practicality of the component.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A labyrinth seal structure for the end face of a toothed roller, comprising a roller body (1), characterized in that: The upper and lower ends of the outer wall of the roller body (1) are equipped with sealing mechanisms (2). The sealing mechanisms (2) are used to prevent dust and impurities from entering the gap between the toothed roller end face and the mounting shaft. The outer wall of the roller body (1) is equipped with multiple fixing mechanisms (3). The fixing mechanisms (3) are used to replace the toothed sleeves detachably. The sealing mechanism (2) includes a stator (201), which is mounted on the top of the outer wall of the roller body (1). A connecting ring two (205) is rotatably connected to the middle of the outer wall of the stator (201). A sealing ring (202) is installed in the middle of the inner wall of the stator (201). A rotor (203) is fixedly connected to the top of the outer wall of the sealing ring (202). A connecting ring one (204) is rotatably connected to the middle of the inner wall of the rotor (203).

2. The labyrinth seal structure on the end face of a toothed roller according to claim 1, characterized in that: The fixing mechanism (3) includes a connecting plate (301), which is fixedly connected to the outer wall of the roller (1). A fixing frame (302) is fixedly connected to the front side of the outer wall of the connecting plate (301). A connecting block (303) is installed on the front side of the outer wall of the fixing frame (302). A fixing block (304) is fixedly connected to the front side of the outer wall of the connecting block (303). A tooth (305) is fixedly connected to the front side of the outer wall of the fixing block (304). A locking assembly (306) is installed on the rear side of the outer wall of the tooth (305).

3. The labyrinth seal structure on the end face of a toothed roller according to claim 2, characterized in that: The engaging assembly (306) includes a rotating shaft (3061), which is rotatably connected to the upper and lower sides of the inner wall of the fixed frame (302). A threaded rod (3062) is fixedly connected to the front side of the outer wall of the upper rotating shaft (3061), and a nut (3063) is threadedly connected to the front side of the outer wall of the threaded rod (3062). A limit plate (3064) is provided on the rear side of the outer wall of the nut (3063).

4. The labyrinth seal structure on the end face of a toothed roller according to claim 1, characterized in that: The roller body (1) has end face bodies (4) installed on both the upper and lower sides of its outer wall.

5. The labyrinth seal structure at the end face of a toothed roller according to claim 1, characterized in that: A roller shaft (5) is installed in the middle of the inner wall of the roller body (1).

6. The labyrinth seal structure on the end face of a toothed roller according to claim 5, characterized in that: A connecting pipe (6) is installed on the top of the outer wall of the roller body (5), and a plurality of balls (7) are installed on the outer wall of the connecting pipe (6).

7. The labyrinth seal structure on the end face of a toothed roller according to claim 6, characterized in that: The outer wall of the ball (7) is fitted with a connecting pipe (8).

8. The labyrinth seal structure at the end face of a toothed roller according to claim 5, characterized in that: A flange (9) is fixedly connected to the bottom of the outer wall of the roller body (5), and bolts (10) are threaded around the outer wall of the flange (9).

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