Integrated rotary sealing device

Abstract

The utility model belongs to the technical field of mechanical sealing, and particularly relates to an integrated rotary sealing device which comprises a shell. A hole clamping ring is installed on the inner side wall of the shell. The side wall of the hole clamping ring is fixedly connected with a hole fixing ring; a first sealing ring is mounted on the side wall of the fixing ring for the hole; the side wall of the first sealing ring is connected with a first fixed-distance pin shaft; the end part of the first fixed-distance pin shaft is connected with a second sealing ring; the side wall of the second sealing ring is connected with a second fixed-distance pin shaft; the end part of the second fixed-distance pin shaft is connected with a third sealing ring; the side wall of the third sealing ring is connected with a distance ring for a bearing hole; according to the sealing structure, all the components are installed on the surface of the inner sealing pipe and then installed in the shell, then the inner sealing pipe is arranged on the rotating shaft needing to be sealed in a sleeving mode for sealing, the integration degree of the sealing structure is improved, and the situation that in traditional installation, all the components need to be installed on the rotating shaft of equipment, and consequently operation is complex is reduced; the installation process can be simplified, so that the installation convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical seals, in particular to an integrated rotary sealing device. Background Art

[0002] Dynamic seal refers to the seal between relatively moving parts in a machine or equipment. It is mainly used to prevent the medium from leaking as the moving parts move. Currently, commonly used dynamic seals can be divided into two categories: reciprocating dynamic seals and rotary dynamic seals.

[0003] Existing rotary dynamic seals are mainly used to seal rotating or swinging rods, shafts, pins, joints and other positions. Usually, rotary seals consist of rotating parts and stationary parts, and cooperate with sealing rings or sealing gaskets to form a tight sealing structure, which can reduce the leakage of liquid or gas. During long-term use observation, it is found that the existing dynamic seal structure is relatively complicated, and there are problems such as high difficulty in installation and low rotation accuracy that affect the sealing effect.

[0004] To this end, the utility model provides an integrated rotating sealing device. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, an integrated rotary sealing device is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an integrated rotating sealing device described in the utility model comprises a shell; a hole clamp ring is installed on the inner side wall of the shell; a hole fixing ring is fixedly connected to the side wall of the hole clamp ring; a first sealing ring is installed on the side wall of the hole fixing ring; the first sealing ring side wall is connected to a first spacing pin; the first spacing pin end is connected to a second sealing ring; the second sealing ring side wall is connected to a second spacing pin; the second spacing pin end is connected to a third sealing ring; the third sealing ring side wall is connected to a bearing hole spacing ring; the bearing hole spacing ring side wall is connected to a bearing shaft positioning ring; the bearing hole spacing ring and the bearing shaft positioning ring side wall are jointly connected to a first bearing; the first bearing side wall is connected to a fourth sealing ring; the fourth sealing ring side wall is connected to a third spacing pin; the third spacing pin end is connected to a fifth sealing ring; the fifth sealing ring side wall is connected to a fourth spacing pin; the fourth spacing pin end is connected to a sixth sealing Ring; the end of the sixth sealing ring is connected to the fifth spacing pin; the end of the fifth spacing pin is connected to the seventh sealing ring; the side wall of the seventh sealing ring is connected to the sixth spacing pin; the end of the sixth spacing pin is connected to the eighth sealing ring; the side wall of the eighth sealing ring is connected to the second bearing; the side wall of the second bearing is connected to the shaft sleeve; the side wall of the shaft sleeve is connected to the pressure cover; the inner side wall of the shell is rotatably connected to the inner sealing tube; the side wall of the shell is fixed with a fastener; the side wall of the pressure cover is installed with a sealing gasket; the side wall of the shaft sleeve is connected to a pressure ring; the side wall of the pressure ring is connected to a spring bracket; the inner side wall of the spring bracket is provided with a spring body; the end of the spring bracket is fixed with a fixing ring; by installing each component on the surface of the inner sealing tube and then installing it into the shell, and then arranging the inner sealing tube sleeve on the rotating shaft to be sealed for sealing, the integration of the sealing structure is improved to reduce the need to install each component on the rotating shaft of the equipment during traditional installation, resulting in complicated operations, and the installation process can be simplified to improve the convenience of installation.

[0007] Preferably, the side wall of the shell is connected to an isolated nitrogen inlet; the side wall of the shell near the isolated nitrogen inlet is connected to an isolated nitrogen outlet; the isolated nitrogen inlet is located between the first sealing ring, the first distance pin and the second sealing ring; the isolated nitrogen outlet is located between the second sealing ring, the second distance pin and the third sealing ring; in this step, nitrogen can be filled into the space between the shell and the inner sealing tube by setting the isolated nitrogen inlet, and at this time a high-pressure area can be formed in the cavity, which plays an isolation role to reduce leakage of the medium.

[0008] Preferably, the shell side wall is connected to a circulating water inlet; the shell side wall away from the circulating water inlet is connected to a circulating water outlet; the shell side wall is connected to a pair of first liquid leakage outlets; the shell side wall is connected to a pair of second liquid leakage outlets; this step allows water to circulate between the shell and the inner sealed tube by setting the circulating water inlet and the circulating water outlet, which can reduce the high temperature generated by friction when the inner sealed tube rotates, so as to perform cooling and increase the service life.

[0009] Preferably, a first filter is fixedly connected to the end of the circulating water inlet; the end of the first filter is sleeved on the inner wall of the circulating water inlet; this step connects the circulating water inlet by setting a first sealing ring, which can filter the water entering the circulating water inlet to reduce the amount of impurities such as mud and sand in the water entering between the shell and the inner sealing tube, causing blockage and friction damage.

[0010] Preferably, a second filter is fixedly connected to the end of the circulating water outlet; the end of the second filter is sleeved on the inner wall of the circulating water outlet; this step can filter the discharged water again by setting a first fixed-distance pin to connect the circulating water outlet, so as to reduce the components such as oil and lubricants mixed in the water and eliminate the pollution.

[0011] Preferably, the shell side wall is fixedly connected with sound-absorbing cotton; the sound-absorbing cotton is arranged in a circular shape; in this step, the sound-absorbing cotton can be arranged to absorb the noise generated during operation to reduce the situation where noise pollution is caused by loud noise.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The integrated rotary sealing device described in the utility model improves the integration of the sealing structure by installing various components on the surface of the inner sealing tube and then installing it into the shell, and then the inner sealing tube is sleeved on the rotating shaft to be sealed to seal, so as to reduce the need to install various components on the rotating shaft of the equipment during traditional installation, resulting in complicated operations, and can simplify the installation process to improve the convenience during installation.

[0014] 2. The integrated rotary sealing device described in the utility model can fill nitrogen into the space between the shell and the inner sealing tube by setting an isolated nitrogen inlet. At this time, a high-pressure area can be formed in the cavity to play an isolation role to reduce leakage of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

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

[0017] Figure 2 yes Figure 1A partial enlarged view of the middle part;

[0018] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0019] Figure 4 It is a schematic diagram of the structure of the first filter in the utility model;

[0020] Legend:

[0021] 1. Housing; 2. Hole clamp ring; 3. Hole fixing ring; 4. First sealing ring; 5. First distance pin; 6. Second sealing ring; 7. Second distance pin; 8. Third sealing ring; 9. Bearing hole distance ring; 10. Bearing shaft positioning ring; 11. First bearing; 12. Fourth sealing ring; 13. Third distance pin; 14. Fifth sealing ring; 15. Fourth distance pin; 16. Sixth sealing ring; 17. Fifth distance pin; 18. Seventh sealing ring; 19. Sixth distance pin ; 20. Eighth sealing ring; 21. Pressure cover; 22. Second bearing; 23. Bushing; 24. Inner sealing tube; 25. Fastener; 26. Sealing gasket; 27. Pressure ring; 28. Spring bracket; 29. ​​Spring body; 30. Fixed ring; 31. Isolation nitrogen inlet; 32. Isolation nitrogen outlet; 33. First leakage outlet; 34. Second leakage outlet; 35. Circulating water inlet; 36. Circulating water outlet; 41. First filter; 51. Second filter; 61. Sound-absorbing cotton. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Specific examples are given below.

[0024] like Figures 1 to 3As shown, an integrated rotary sealing device described in an embodiment of the utility model comprises a housing 1; a hole collar 2 is installed on the inner side wall of the housing 1; a hole fixing ring 3 is fixedly connected to the side wall of the hole collar 2; a first sealing ring 4 is installed on the side wall of the hole fixing ring 3; a first spacing pin 5 is connected to the side wall of the first sealing ring 4; a second sealing ring 6 is connected to the end of the first spacing pin 5; a second spacing pin 7 is connected to the side wall of the second sealing ring 6; a third sealing ring 8 is connected to the end of the second spacing pin 7; a bearing hole spacing ring 9 is connected to the side wall of the third sealing ring 8; a bearing hole spacing ring 9 is connected to the side wall of the bearing shaft The first bearing 11 is connected to the side wall of the bearing hole spacing ring 9 and the bearing shaft spacing ring 10; the first bearing 11 is connected to the side wall of the fourth sealing ring 12; the third spacing pin 13 is connected to the side wall of the fourth sealing ring 12; the third spacing pin 13 is connected to the end of the fifth sealing ring 14; the fourth spacing pin 15 is connected to the side wall of the fifth sealing ring 14; the fourth spacing pin 15 is connected to the end of the sixth sealing ring 16; the fifth spacing pin 17 is connected to the end of the sixth sealing ring 16; the fifth spacing pin 17 is connected to the end of the seventh sealing ring 18; the seventh sealing ring 18 is connected to the side wall of the The sixth spacing pin 19; the end of the sixth spacing pin 19 is connected to the eighth sealing ring 20; the side wall of the eighth sealing ring 20 is connected to the second bearing 22; the side wall of the second bearing 22 is connected to the shaft sleeve 23; the side wall of the shaft sleeve 23 is connected to the pressure cover 21; the inner side wall of the housing 1 is rotatably connected to the inner sealing tube 24; the side wall of the housing 1 is fixedly connected to the fastener 25; the side wall of the pressure cover 21 is installed with a sealing gasket 26; the side wall of the shaft sleeve 23 is connected to the pressure ring 27; the side wall of the pressure ring 27 is connected to the spring bracket 28; the inner side wall of the spring bracket 28 is provided with a spring body 29; the end of the spring bracket 28 is fixedly connected to a fixing ring 3 0; When working, assemble the components on the inner sealing tube 24 in sequence, and then install them into the shell 1, then put the inner sealing tube 24 on the rotating shaft of the equipment and then fix it, when the rotating shaft rotates, the inner sealing tube 24 rotates with the shaft, and the equipment and the rotating shaft can be sealed to reduce the leakage of the medium, by installing the components on the surface of the inner sealing tube 24 and then installing it into the shell 1, and then putting the inner sealing tube 24 on the rotating shaft that needs to be sealed for sealing, so that the integration of the sealing structure is improved, so as to reduce the need to install the components on the rotating shaft of the equipment during traditional installation, resulting in complicated operations, and the installation process can be simplified to improve the convenience during installation.

[0025] like Figure 1 to Figure 2As shown, the side wall of the shell 1 is connected with an isolated nitrogen inlet 31; the side wall of the shell 1 near the isolated nitrogen inlet 31 is connected with an isolated nitrogen outlet 32; the isolated nitrogen inlet 31 is located between the first sealing ring 4, the first distance pin 5, and the second sealing ring 6; the isolated nitrogen outlet 32 ​​is located between the second sealing ring 6, the second distance pin 7, and the third sealing ring 8; during operation, nitrogen is filled into the isolated nitrogen inlet 31 after installation is completed, and at this time, the nitrogen enters the cavity between the first sealing ring 4, the first distance pin 5, and the second sealing ring 6 for isolation, and when the nitrogen is discharged, the nitrogen enters the cavity between the second sealing ring 6, the second distance pin 7, and the third sealing ring 8 and then is discharged from the isolated nitrogen outlet 32. In this step, nitrogen can be filled into the space between the shell 1 and the inner sealing tube 24 by setting the isolated nitrogen inlet 31, and at this time, a high-pressure area can be formed in the cavity, which plays an isolation role to reduce the leakage of the medium.

[0026] like Figure 1 As shown, the side wall of the shell 1 is connected to a circulating water inlet 35; the side wall of the shell 1 away from the circulating water inlet 35 is connected to a circulating water outlet 36; the side wall of the shell 1 is connected to a pair of first leakage outlets 33; the side wall of the shell 1 is connected to a pair of second leakage outlets 34; during operation, water is introduced into the shell 1 through the circulating water inlet 35, at this time, the water flows in the gap between the shell 1 and the inner sealed tube 24 and then discharged from the circulating water outlet 36, at this time, the water can circulate between the shell 1 and the inner sealed tube 24, and the excess leaked water will flow out from the first leakage outlet 33 and the second leakage outlet 34. This step allows water to circulate between the shell 1 and the inner sealed tube 24 by setting the circulating water inlet 35 and the circulating water outlet 36, which can reduce the high temperature generated by friction when the inner sealed tube 24 rotates, so as to perform cooling and increase the service life.

[0027] like Figure 4 As shown, the end of the circulating water inlet 35 is fixedly connected with a first filter 41; the end of the first filter 41 is sleeved on the inner wall of the circulating water inlet 35; when working, the first sealing ring 4 is connected to the circulating water inlet 35, and when the water flows into the circulating water inlet 35, it will pass through the first sealing ring 4. At this time, the first sealing ring 4 can filter the water flow and filter out impurities such as mud and sand in the water. In this step, by setting the first sealing ring 4 to connect the circulating water inlet 35, the water entering the circulating water inlet 35 can be filtered to reduce the mud and sand in the water. Impurities such as impurities enter between the shell 1 and the inner sealing tube 24, causing blockage and friction damage.

[0028] like Figure 4As shown, the end of the circulating water outlet 36 is fixedly connected to a second filter 51; the end of the second filter 51 is sleeved on the inner wall of the circulating water outlet 36; when working, the first fixed distance pin 5 is installed at the circulating water outlet 36, and when the water flow is discharged from the circulating water outlet 36, it will pass through the first fixed distance pin 5 for filtering again, and some oil and lubricant components in the water will be filtered out. In this step, by setting the first fixed distance pin 5 to connect the circulating water outlet 36, the discharged water can be filtered again to reduce the oil and lubricant components mixed in the water and discharge the pollution.

[0029] like Figure 4 As shown, the side wall of the shell 1 is fixedly connected with sound-absorbing cotton 61; the sound-absorbing cotton 61 is arranged in a circular shape; when working, part of the noise generated during operation will be absorbed by the sound-absorbing cotton 61. In this step, the sound-absorbing cotton 61 can be arranged to absorb the noise generated during operation to reduce the noise pollution caused by loud noise.

[0030] like Figure 1 As shown, the first bearing 11 and the second bearing 22 are arranged in a ring shape; in this step, by arranging the first bearing 11 and the second bearing 22 to connect the housing 1 and the inner sealing tube 24, the friction between the inner sealing tube 24 and the housing 1 during rotation can be reduced to increase the service life.

[0031] Working principle: Assemble the components on the inner sealing tube 24 in order, and then install them into the shell 1, then put the inner sealing tube 24 on the rotating shaft of the equipment and fix it. When the rotating shaft rotates, the inner sealing tube 24 rotates with the shaft, and the equipment and the rotating shaft can be sealed to reduce the leakage of the medium. After the installation is completed, nitrogen is filled from the isolation nitrogen inlet 31. At this time, the nitrogen enters the cavity between the first sealing ring 4, the first spacing pin shaft 5, and the second sealing ring 6 for isolation. When the nitrogen is discharged, the nitrogen enters the cavity between the second sealing ring 6, the second spacing pin shaft 7, and the third sealing ring 8 and then is discharged from the isolation nitrogen outlet 32. During operation, water is introduced into the shell 1 through the circulating water inlet 35. At this time, water is in the shell 1 The water flows in the gap between the shell 1 and the inner sealing tube 24 and then is discharged from the circulating water outlet 36. At this time, the water can circulate between the shell 1 and the inner sealing tube 24, and the excess leaked water will flow out from the first leakage outlet 33 and the second leakage outlet 34. The first sealing ring 4 is connected to the circulating water inlet 35. When the water flows into the circulating water inlet 35, it will pass through the first sealing ring 4. At this time, the first sealing ring 4 can filter the water flow and filter out impurities such as mud and sand in the water. The first fixed-distance pin 5 is installed at the circulating water outlet 36. When the water flows out of the circulating water outlet 36, it will pass through the first fixed-distance pin 5 to filter again, and some oil stains, lubricants and other components in the water will be filtered out. Part of the noise generated during operation will be absorbed by the sound-absorbing cotton 61.

[0032] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An integrated rotary sealing device, comprising a housing (1); characterized in that: The inner side wall of the shell (1) is installed with a hole clamp (2); the side wall of the hole clamp (2) is fixedly connected with a hole fixing ring (3); the side wall of the hole fixing ring (3) is installed with a first sealing ring (4); the side wall of the first sealing ring (4) is connected with a first spacing pin (5); the end of the first spacing pin (5) is connected with a second sealing ring (6); the side wall of the second sealing ring (6) is connected with a second spacing pin (7); the end of the second spacing pin (7) is connected with a third sealing ring (8); the side wall of the third sealing ring (8) is connected with A bearing hole spacing ring (9); a bearing shaft positioning ring (10) is connected to the side wall of the bearing hole spacing ring (9); the bearing hole spacing ring (9) and the side wall of the bearing shaft positioning ring (10) are commonly connected to a first bearing (11); a fourth sealing ring (12) is connected to the side wall of the first bearing (11); a third spacing pin (13) is connected to the side wall of the fourth sealing ring (12); a fifth sealing ring (14) is connected to the end of the third spacing pin (13); and a fourth spacing pin is connected to the side wall of the fifth sealing ring (14). (15); the end of the fourth distance pin (15) is connected to the sixth sealing ring (16); the end of the sixth sealing ring (16) is connected to the fifth distance pin (17); the end of the fifth distance pin (17) is connected to the seventh sealing ring (18); the side wall of the seventh sealing ring (18) is connected to the sixth distance pin (19); the end of the sixth distance pin (19) is connected to the eighth sealing ring (20); the side wall of the eighth sealing ring (20) is connected to the second bearing (22); the side wall of the second bearing (22) is connected to A shaft sleeve (23); the side wall of the shaft sleeve (23) is connected to a pressure cover (21); the inner side wall of the shell (1) is rotatably connected to an inner sealing tube (24); the side wall of the shell (1) is fixedly connected to a fastener (25); the side wall of the pressure cover (21) is installed with a sealing gasket (26); the side wall of the shaft sleeve (23) is connected to a pressure ring (27); the side wall of the pressure ring (27) is connected to a spring bracket (28); the inner side wall of the spring bracket (28) is provided with a spring body (29); the end of the spring bracket (28) is fixedly connected to a fixing ring (30).

2. An integrated rotary sealing device according to claim 1, characterized in that: The side wall of the housing (1) is connected to an isolated nitrogen inlet (31); the side wall of the housing (1) near the isolated nitrogen inlet (31) is connected to an isolated nitrogen outlet (32); the isolated nitrogen inlet (31) is located between the first sealing ring (4), the first distance pin (5), and the second sealing ring (6); and the isolated nitrogen outlet (32) is located between the second sealing ring (6), the second distance pin (7), and the third sealing ring (8).

3. An integrated rotary sealing device according to claim 2, characterized in that: The side wall of the shell (1) is connected to a circulating water inlet (35); a side wall of the shell (1) away from the circulating water inlet (35) is connected to a circulating water outlet (36); the side wall of the shell (1) is connected to a pair of first liquid leakage outlets (33); and the side wall of the shell (1) is connected to a pair of second liquid leakage outlets (34).

4. An integrated rotary sealing device according to claim 3, characterized in that: A first filter (41) is fixedly connected to the end of the circulating water inlet (35); the end of the first filter (41) is sleeved on the inner wall of the circulating water inlet (35).

5. An integrated rotary sealing device according to claim 4, characterized in that: A second filter (51) is fixedly connected to the end of the circulating water outlet (36); and the end of the second filter (51) is sleeved on the inner wall of the circulating water outlet (36).

6. An integrated rotary sealing device according to claim 5, characterized in that: The side wall of the shell (1) is fixedly connected with sound-absorbing cotton (61); the sound-absorbing cotton (61) is arranged in a circular shape.

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