A new type of rotary joint for peripheral heating roller

Abstract

The utility model discloses a novel rotary joint of a peripheral heating roller, comprising a rotor and a shell, wherein the outer surface of the rotor is rotatably connected to the shell, a discharge hole is provided inside the rotor, an annular channel groove is provided on the inner wall of the shell, an inlet pipe is installed on the side of the shell, and the inlet pipe is connected to the annular channel groove, an annular fixing block is symmetrically installed on the inner wall of the shell, an annular sealing groove is provided on the inner wall of the annular fixing block, a cavity is provided inside the annular fixing block, a sealing ring is provided inside the annular sealing groove, an annular pressing block is provided inside the annular sealing groove, and the annular pressing block is located at the upper end of the sealing ring. The utility model squeezes the sealing ring through the annular pressing block, so that the sealing ring fits the rotor tightly, thereby improving the sealing effect; at the same time, cold air is transported into the cavity through the connecting pipe and the transport pipe, so that the overall temperature of the annular fixing block is reduced, and at the same time, cold air enters the cavity through the telescopic pipe, so that the overall temperature of the annular pressing block is reduced, thereby reducing the temperature of the sealing ring and extending the service life of the sealing ring.

Description

Technical Field

[0001] The utility model relates to the field of heating rollers, and particularly relates to a rotary joint of a new type of peripheral heating roller. Background Art

[0002] A peripheral heating roller refers to a roller device with a heating function, which is usually used in various industrial processes, especially in occasions where heat treatment is required. Such rollers are heated by a heating mechanism, and then their heat is transferred to the material in contact with them to achieve heating, softening, melting or other specific process requirements of the material. The peripheral heating roller is connected to the heating mechanism through a rotary joint. The heating mechanism transfers heat to the peripheral heating roller through the rotary joint, which causes the overall temperature of the rotary joint to rise. The increase in the overall temperature of the rotary joint will affect the internal sealing ring. The sealing ring will be hardened and oxidized when heated, affecting the service life of the sealing ring. Therefore, those skilled in the art provide a rotary joint of a new type of peripheral heating roller to solve the problems raised in the above background art. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a rotary joint of a new type of peripheral heating roller, which includes a rotor and a housing. The outer surface of the rotor is rotatably connected to the housing. A discharge hole is opened inside the rotor, and an annular channel groove is opened on the inner wall of the housing. An inlet pipe is installed on the side of the housing, and the inlet pipe communicates with the annular channel groove.

[0004] Annular fixing blocks are symmetrically installed on the inner wall of the housing. An annular sealing groove is opened on the inner wall of the annular fixing block. A cavity is arranged inside the annular fixing block. A sealing ring is arranged inside the annular sealing groove. An annular pressing block is arranged inside the annular sealing groove, and the annular pressing block is located above the sealing ring.

[0005] A cavity is arranged inside the annular pressing block. Telescopic tubes are symmetrically installed at the upper end of the annular pressing block. The upper ends of the telescopic tubes communicate with the cavity, and the lower ends of the telescopic tubes communicate with the cavity. A plurality of springs are installed at the upper end of the annular pressing block, and the springs are fixedly connected to the top inside the annular sealing groove.

[0006] A discharge pipe is installed at the right end of the annular fixing block, and a conveying pipe is installed at the left end of the annular fixing block. A connecting pipe is installed at the left ends of the two conveying pipes. A fixing frame is installed at the lower end of the connecting pipe. A filter plate is installed at the bottom inside the fixing frame. A fan is arranged inside the fixing frame, and a semiconductor refrigerator is installed at the left end of the fixing frame.

[0007] Preferably, a bearing groove is opened at the upper end of the housing, and a bearing is installed on the inner wall of the bearing groove.

[0008] Preferably, the cross-section of the cavity is in a "C" shape.

[0009] Preferably, a limiting rod is arranged inside the spring.

[0010] Preferably, the lower end of the limiting rod is fixedly connected to the annular pressing block, and the upper end of the limiting rod passes through the top of the annular sealing groove.

[0011] Preferably: a limiting block is installed at the upper end of the limiting rod.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model extrude the sealing ring through the annular compression block, so that the sealing ring fits tightly to the rotor, thereby improving the sealing effect; at the same time, cold air is transported into the cavity through the connecting pipe and the delivery pipe, so that the overall temperature of the annular fixing block is reduced. At the same time, cold air enters the cavity through the telescopic pipe, so that the overall temperature of the annular compression block is reduced, thereby reducing the temperature of the sealing ring and extending the service life of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this application;

[0015] Figure 2 It is a schematic diagram of the structure of the housing of this application;

[0016] Figure 3 It is a structural schematic diagram of the annular fixing block of the present application;

[0017] Figure 4 It is a structural schematic diagram of the annular compression block of the present application;

[0018] Figure 5 It is a structural diagram of the fixed frame of this application;

[0019] In the figure: 1. rotor; 2. discharge hole; 3. shell; 4. annular channel groove; 5. inlet pipe; 6. bearing groove; 7. annular fixing block; 8. cavity; 9. annular sealing groove; 10. sealing ring; 11. annular clamping block; 12. cavity; 13. telescopic tube; 14. spring; 15. limit rod; 16. limit block; 17. discharge pipe; 18. delivery pipe; 19. connecting pipe; 20. fixing frame; 21. filter plate; 22. fan; 23. semiconductor refrigerator. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0021] See also Figures 1 to 5, in this embodiment, a rotary joint of a new type of peripheral heating roller is provided, including a rotor 1 and a housing 3. The outer surface of the rotor 1 is rotatably connected to the housing 3. A discharge hole 2 is provided inside the rotor 1. A bearing groove 6 is provided at the upper end of the housing 3, and a bearing is installed on the inner wall of the bearing groove 6. An annular channel groove 4 is provided on the inner wall of the housing 3. An inlet pipe 5 is installed on the side of the housing 3, and the inlet pipe 5 communicates with the annular channel groove 4. Annular fixing blocks 7 are symmetrically installed on the inner wall of the housing 3. An annular sealing groove 9 is provided on the inner wall of the annular fixing block 7. A cavity 8 is provided inside the annular fixing block 7, and the cross-section of the cavity 8 is in a "C" shape. A sealing ring 10 is provided inside the annular sealing groove 9. An annular pressing block 11 is provided inside the annular sealing groove 9, and the annular pressing block 11 is located above the sealing ring 10. A cavity 12 is provided inside the annular pressing block 11. Telescopic pipes 13 are symmetrically installed at the upper end of the annular pressing block 11. The upper end of the telescopic pipe 13 communicates with the cavity 8, and the lower end of the telescopic pipe 13 communicates with the cavity 12. A plurality of springs 14 are installed at the upper end of the annular pressing block 11, and the springs 14 are fixedly connected to the inner top of the annular sealing groove 9. A limiting rod 15 is provided inside the spring 14. The lower end of the limiting rod 15 is fixedly connected to the annular pressing block 11. The upper end of the limiting rod 15 passes through the inner top of the annular sealing groove 9, and a limiting block 16 is installed at the upper end of the limiting rod 15. A discharge pipe 17 is installed at the right end of the annular fixing block 7. A conveying pipe 18 is installed at the left end of the annular fixing block 7. A connecting pipe 19 is installed at the left ends of the two conveying pipes 18. A fixing frame 20 is installed at the lower end of the connecting pipe 19. A filter plate 21 is installed at the inner bottom of the fixing frame 20. A fan 22 is provided inside the fixing frame 20. A semiconductor refrigerator 23 is installed at the left end of the fixing frame 20.

[0022] The working principle of the present invention is as follows: The annular pressing block 11 is pushed by the spring 14, and the annular pressing block 11 squeezes the sealing ring 10, so that the sealing ring 10 closely fits the rotor 1, improving the sealing effect. At the same time, the semiconductor refrigerator 23 works to lower the temperature inside the fixing frame 20. Then, the fan 22 works to convey the cold air into the cavity 8 through the connecting pipe 19 and the conveying pipe 18. At the same time, the dust is filtered by the filter plate 21. After the cold air enters the cavity 8, the overall temperature of the annular fixing block 7 is reduced. At the same time, the cold air enters the cavity 12 through the telescopic pipe 13, reducing the overall temperature of the annular pressing block 11, thereby reducing the temperature of the sealing ring 10 and extending the service life of the sealing ring 10.

[0023] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A novel rotary joint for a peripheral heating roller, comprising a rotor (1) and a housing (3), characterized in that: The outer surface of the rotor (1) is rotatably connected to the housing (3). A discharge hole (2) is formed inside the rotor (1). An annular channel groove (4) is formed on the inner wall of the housing (3). An inlet pipe (5) is installed on the side of the housing (3), and the inlet pipe (5) communicates with the annular channel groove (4). Annular fixing blocks (7) are symmetrically installed on the inner wall of the housing (3). An annular sealing groove (9) is formed on the inner wall of the annular fixing block (7). A cavity (8) is arranged inside the annular fixing block (7). A sealing ring (10) is arranged inside the annular sealing groove (9). An annular pressing block (11) is arranged inside the annular sealing groove (9), and the annular pressing block (11) is located above the sealing ring (10). A cavity (12) is arranged inside the annular pressing block (11). Telescopic pipes (13) are symmetrically installed on the upper end of the annular pressing block (11). The upper ends of the telescopic pipes (13) communicate with the cavity (8), and the lower ends of the telescopic pipes (13) communicate with the cavity (12). A plurality of springs (14) are installed on the upper end of the annular pressing block (11), and the springs (14) are fixedly connected to the inner top of the annular sealing groove (9). A discharge pipe (17) is installed at the right end of the annular fixing block (7). A conveying pipe (18) is installed at the left end of the annular fixing block (7). A connecting pipe (19) is installed at the left ends of the two conveying pipes (18). A fixing frame (20) is installed at the lower end of the connecting pipe (19). A filter plate (21) is installed at the inner bottom of the fixing frame (20). A fan (22) is arranged inside the fixing frame (20). A semiconductor refrigerator (23) is installed at the left end of the fixing frame (20).

2. A novel rotary joint for a peripheral heating roller according to claim 1, characterized in that: A bearing groove (6) is formed at the upper end of the housing (3), and a bearing is installed on the inner wall of the bearing groove (6).

3. A novel rotary joint for a peripheral heating roller according to claim 1, characterized in that: The cross-section of the cavity (8) is in an "L" shape.

4. A novel peripheral heating roller rotary joint according to claim 1, characterized in that: A limiting rod (15) is arranged inside the spring (14).

5. A novel rotary joint for a peripheral heating roller according to claim 4, characterized in that: The lower end of the limiting rod (15) is fixedly connected to the annular pressing block (11), and the upper end of the limiting rod (15) passes through the inner top of the annular sealing groove (9).

6. A novel rotary joint for a peripheral heating roller according to claim 4, characterized in that: A limiting block (16) is installed at the upper end of the limiting rod (15).

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