Mechanical seal of horizontal wet grinding machine

Abstract

The utility model relates to the technical field of mechanical seals, and discloses a horizontal wet grinding machine mechanical seal which comprises a connecting shaft, a first clamping groove is formed in the outer wall of the connecting shaft, a first sealing ring is fixedly installed on the inner side of the first clamping groove, a second clamping groove is formed in the outer wall of the other side, away from the first clamping groove, of the connecting shaft, and a second sealing ring is fixedly installed on the inner side of the second clamping groove. A shaft sleeve is arranged on the outer side of the connecting shaft, a second sealing ring is fixedly installed on one side of the shaft sleeve, a third sealing ring is fixedly installed on one side of the connecting shaft, a movable ring is fixedly installed on the outer side of the shaft sleeve, a first clamping ring is fixedly installed on one side of the movable ring, and a static ring is arranged on one side of the movable ring. According to the mechanical seal of the horizontal wet grinding machine, the movable ring and the auxiliary ring seat are made of the hard alloy materials, and the hard alloy materials have excellent hardness and abrasion resistance, so that abrasion of the movable ring and the auxiliary ring seat caused by friction in the device operation process can be effectively reduced, and the mechanical seal also has high high temperature resistance; deformation in a high-temperature and high-pressure environment is avoided, and normal use is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to a mechanical seal for a horizontal wet grinding machine. Background Art

[0002] The horizontal grinding machine uses a feed pump to feed the pre-treated solid-liquid mixture into the working chamber of the grinding machine. The material and the grinding medium in the chamber are stirred by the high-speed rotating impeller, causing strong collision, shearing and friction between the solid particles in the material and the grinding medium, thereby achieving the purpose of grinding fine particles and dispersing aggregates.

[0003] China Utility Model Patent Publication No.: CN 206889675 U3, discloses: a mechanical seal structure of a horizontal grinder, the mechanical seal structure of the horizontal grinder separates the grinding medium from the dynamic ring and the static ring of the mechanical seal, thereby extending the working life of the mechanical seal, and the preload force of the mechanical seal spring is convenient to adjust. However, although the mechanical seal structure of the horizontal grinder can meet the requirements for sealing use, the structure is relatively complex, and maintenance and assembly are inconvenient. In addition, the mechanical seal structure of the horizontal grinder adopts a dynamic ring made of silicon carbide material, which has poor deformation resistance under high temperature and high pressure environment, which is easy to affect its sealing performance. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a mechanical seal for a horizontal wet grinding machine, which can effectively solve the problems in the prior art, such as complex structure, inconvenient maintenance and assembly, poor deformation resistance under high temperature and high pressure environment, and easy impact on its sealing performance.

[0005] The technical solution adopted by the utility model is: a mechanical seal for a horizontal wet grinding machine, comprising a connecting shaft, a first card slot is provided on the outer wall of the connecting shaft, a sealing ring is fixedly installed on the inner side of the first card slot, a second card slot is provided on the outer wall of the connecting shaft away from the first card slot, a shaft sleeve is provided on the outer side of the connecting shaft, a second sealing ring is fixedly installed on one side of the shaft sleeve, a third sealing ring is fixedly installed on one side of the connecting shaft, a dynamic ring is fixedly installed on the outer side of the shaft sleeve, a clamping ring is fixedly installed on one side of the dynamic ring, and a static Ring, a flange is fixedly installed on the outside of the static ring, a hexagon socket bolt is arranged on the outside of the flange, an O-ring 1 is fixedly installed on the inside of the flange, a guide sleeve is fixedly installed on the outside of the sleeve, a spring is arranged on the outside of the static ring, a liquid inlet is opened on the outside of the flange, an O-ring 2 is arranged on the outside of the flange, a secondary ring seat is fixedly installed on the bottom of the sleeve, an O-ring 3 is fixedly installed on one side of the secondary ring seat, a clamping ring 2 is fixedly installed on one side of the secondary ring seat, a liquid outlet is opened at the other end of the flange, and a kettle body is arranged on the outside of the flange.

[0006] Preferably, the sealing ring 1 is located between the connecting shaft and the sleeve, and the other end of the sleeve is matched with the connecting shaft through the groove 2.

[0007] Through the above technical solution, through the design of the sealing ring one, when the solid-liquid phase mixture is input into the working chamber of the grinder, it can effectively prevent leakage at the interface between the material connecting shaft and the sleeve, ensure the internal airtightness, and help protect the normal operation of the device. In addition, the cooperation between the slot two and the connecting shaft can ensure that the connection between the connecting shaft and the sleeve is firm and reliable, not easy to loosen or fall off, and maintain stability during the operation of the device.

[0008] Preferably, the liquid inlet, the liquid outlet and the guide sleeve are communicated with each other, and the liquid inlet and the liquid outlet are respectively located on two sides of the shaft sleeve.

[0009] Through the above technical solution, through the design of the liquid inlet and the liquid outlet, the coolant can be input from the liquid inlet, and then the coolant enters the guide sleeve. During operation, the coolant circulation can be forced for the pumping thread, thereby improving the practicality of the overall device.

[0010] Preferably, the moving ring and the auxiliary ring seat are made of hard alloy material, and a second sealing ring and a third sealing ring are arranged between the moving ring and the shaft sleeve.

[0011] Through the above technical scheme, the dynamic ring and the auxiliary ring seat are made of cemented carbide material. Since the cemented carbide material has excellent hardness and wear resistance, the wear of the dynamic ring and the auxiliary ring seat caused by friction during the operation of the device can be effectively reduced, thereby extending the service life of the sealing components. In addition, the setting of the second and third sealing rings can further improve the sealing performance of the dynamic ring and the sleeve.

[0012] Preferably, the flange is fixedly mounted to the kettle body by means of hexagon socket bolts, and a plurality of the hexagon socket bolts are provided, and the plurality of the hexagon socket bolts are distributed in a ring shape with respect to the flange.

[0013] Through the above technical solution, through the design of the hexagon socket bolt, when installing, the kettle body and the flange can be aligned first, and then the hexagon socket bolt can be rotated to fix the kettle body and the flange together, thereby ensuring the structural stability of the device, preventing loosening or falling off during operation, and ensuring the safety and reliability of the device.

[0014] Preferably, the O-ring three is located at the gap between the shaft sleeve and the auxiliary ring seat, and the clamping ring two is located at the connection between the shaft sleeve and the auxiliary ring seat.

[0015] Through the above technical solution, through the design of O-ring three, the sealing performance of the sleeve and the auxiliary ring seat can be improved to avoid leakage, and the design of clamping ring two can ensure the stability and reliability of the connection, prevent device failure due to loosening or falling off, and improve the practicality of the overall device.

[0016] Preferably, the stationary ring is fixed to the flange by bolts, and the O-ring is located at the connection between the flange and the dynamic ring.

[0017] Through the above technical solution, the stationary ring can be easily fixed to the flange through the cooperation of bolts and flange, and the O-ring can make the flange and the dynamic ring well sealed to avoid leakage.

[0018] Compared with the prior art, the utility model provides a horizontal wet grinding machine mechanical seal, which has the following beneficial effects:

[0019] 1. The mechanical seal of the horizontal wet grinding machine can not only meet the sealing requirements through the design of multiple sealing rings and clamping rings, but also has a simple structure, low cost, convenient manufacturing, maintenance, loading and unloading, and is easy to promote and use;

[0020] 2. The mechanical seal of the horizontal wet grinding machine is made of a dynamic ring and a secondary ring seat made of cemented carbide material. Because the cemented carbide material has excellent hardness and wear resistance, it can effectively reduce the wear of the dynamic ring and the secondary ring seat due to friction during the operation of the device, and it also has strong high temperature resistance to avoid deformation under high temperature and high pressure environment, which affects normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the connecting shaft of the utility model;

[0025] Figure 5 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0026] Among them: 1. connecting shaft; 2. slot one; 3. sealing ring one; 4. slot two; 5. shaft sleeve; 6. sealing ring two; 7. sealing ring three; 8. moving ring; 9. clamping ring one; 10. stationary ring; 11. flange; 12. hexagon socket bolt; 13. O-ring one; 14. guide sleeve; 15. spring; 16. liquid inlet; 17. O-ring two; 18. auxiliary ring seat; 19. O-ring three; 20. clamping ring two; 21. liquid outlet; 22. kettle body. DETAILED DESCRIPTION

[0027] 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 in 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.

[0028] Embodiment 1: Figure 1-5 As shown, the utility model provides a mechanical seal for a horizontal wet grinding machine, including a connecting shaft 1, a groove 2 is provided on the outer wall of the connecting shaft 1, a sealing ring 3 is fixedly installed on the inner side of the groove 2, a groove 2 is provided on the outer wall of the connecting shaft 1 on the other side away from the groove 2, a sleeve 5 is provided on the outer side of the connecting shaft 1, a sealing ring 2 6 is fixedly installed on one side of the sleeve 5, a sealing ring 3 7 is fixedly installed on one side of the connecting shaft 1, a moving ring 8 is fixedly installed on the outer side of the sleeve 5, a clamping ring 9 is fixedly installed on one side of the moving ring 8, a stationary ring 10 is provided on one side of the moving ring 8, and a sealing ring 10 is fixedly installed on the outer side of the stationary ring 10 A flange 11 is provided, a hexagon socket bolt 12 is provided on the outside of the flange 11, an O-ring 13 is fixedly installed on the inside of the flange 11, a guide sleeve 14 is fixedly installed on the outside of the sleeve 5, a spring 15 is provided on the outside of the static ring 10, a liquid inlet 16 is opened on the outside of the flange 11, an O-ring 2 17 is provided on the outside of the flange 11, a secondary ring seat 18 is fixedly installed on the bottom of the sleeve 5, an O-ring 3 19 is fixedly installed on one side of the secondary ring seat 18, a clamping ring 20 is fixedly installed on one side of the secondary ring seat 18, a liquid outlet 21 is opened at the other end of the flange 11, and a kettle body 22 is provided on the outside of the flange 11.

[0029] Specifically, the sealing ring 3 is located between the connecting shaft 1 and the sleeve 5, and the other end of the sleeve 5 is matched with the connecting shaft 1 through the groove 24. The advantage is that through the design of the sealing ring 3, when the solid-liquid phase mixture is input into the working chamber of the grinder, it can effectively prevent the material from leaking at the interface between the connecting shaft 1 and the sleeve 5, ensure the internal airtightness, and help protect the normal operation of the device. In addition, the cooperation between the groove 24 and the connecting shaft 1 can ensure that the connection between the connecting shaft 1 and the sleeve 5 is firm and reliable, not easy to loosen or fall off, and maintains stability during the operation of the device.

[0030] Specifically, the liquid inlet 16, the liquid outlet 21 and the guide sleeve 14 are connected, and the liquid inlet 16 and the liquid outlet 21 are respectively located on both sides of the shaft sleeve 5. The advantage is that through the design of the liquid inlet 16 and the liquid outlet 21, the coolant can be input from the liquid inlet 16, and then the coolant enters the guide sleeve 14. During operation, the coolant circulation can be forced for the pumping thread, thereby improving the practicality of the overall device.

[0031] Specifically, the moving ring 8 and the auxiliary ring seat 18 are made of cemented carbide material, and a sealing ring 2 6 and a sealing ring 3 7 are arranged between the moving ring 8 and the sleeve 5. The advantage is that the moving ring 8 and the auxiliary ring seat 18 made of cemented carbide material can effectively reduce the wear of the moving ring 8 and the auxiliary ring seat 18 caused by friction during the operation of the device because the cemented carbide material has excellent hardness and wear resistance, thereby extending the service life of the sealing components. In addition, the arrangement of the sealing ring 2 6 and the sealing ring 3 7 can further improve the sealing performance of the moving ring 8 and the sleeve 5.

[0032] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0033] Specifically, the flange 11 is fixedly installed with the kettle body 22 by means of the hexagon socket bolts 12. The same number of hexagon socket bolts 12 are provided, and the multiple hexagon socket bolts 12 are distributed in a ring shape with respect to the flange 11. The advantage is that, through the design of the hexagon socket bolts 12, when installing, the kettle body 22 and the flange 11 can be aligned first, and then the hexagon socket bolts 12 can be rotated to fix the kettle body 22 and the flange 11 together, thereby ensuring the structural stability of the device, preventing loosening or falling off during operation, and ensuring the safety and reliability of the device.

[0034] Specifically, O-ring three 19 is located at the gap between the sleeve 5 and the auxiliary ring seat 18, and clamping ring two 20 is located at the connection between the sleeve 5 and the auxiliary ring seat 18. The advantage is that the design of O-ring three 19 can improve the sealing of the sleeve 5 and the auxiliary ring seat 18 to avoid leakage, and the design of clamping ring two 20 can ensure the stability and reliability of the connection, prevent device failure due to loosening or falling off, and improve the practicality of the overall device.

[0035] Specifically, the stationary ring 10 is fixedly installed with the flange 11 by bolts, and the O-ring 13 is located at the connection between the flange 11 and the dynamic ring 8. The advantage is that the stationary ring 10 can be easily fixed with the flange 11 by the cooperation of the bolts with the flange 11, and the O-ring 13 can make the flange 11 and the dynamic ring 8 well sealed to avoid leakage.

[0036] Working principle: During use, through the design of the sealing ring 3, when the solid-liquid phase mixture is input into the working chamber of the grinder, it can effectively prevent leakage at the interface between the material connecting shaft 1 and the sleeve 5, ensure the internal airtightness, and help protect the normal operation of the device, and the cooperation between the slot 24 and the connecting shaft 1 can ensure that the connection between the connecting shaft 1 and the sleeve 5 is firm and reliable, not easy to loosen or fall off, and maintain stability during the operation of the device. Through the design of the liquid inlet 16 and the liquid outlet 21, the coolant can be input from the liquid inlet 16, and then the coolant enters the guide sleeve 14. During operation, the pumping thread can be forced to circulate the coolant, thereby improving the practicality of the overall device. The dynamic ring 8 and the auxiliary ring seat 18 are made of carbide material. Because the cemented carbide material has excellent hardness and wear resistance, it can effectively reduce the wear of the dynamic ring 8 and the auxiliary ring seat 18 caused by friction during the operation of the device, thereby extending the service life of the sealing components. The life, and the setting of the sealing ring 26 and the sealing ring 3 7 can further improve the sealing performance of the dynamic ring 8 and the sleeve 5. Through the design of the hexagon socket bolt 12, when installing, the kettle body 22 and the flange 11 can be aligned first, and then the hexagon socket bolt 12 can be rotated to fix the kettle body 22 and the flange 11 together, ensuring the structural stability of the device, preventing loosening or falling off during operation, and ensuring the safety and reliability of the device. Through the design of O-ring three 19, the sealing performance of the sleeve 5 and the secondary ring seat 18 can be improved to avoid leakage, and the design of the clamping ring 20 can ensure that the connection is stable and reliable, prevent device failure caused by loosening or falling off, and improve the practicality of the overall device. The static ring 10 can be conveniently fixed to the static ring 10 and the flange 11 by the cooperation of the bolts and the flange 11, and the O-ring one 13 can make the flange 11 and the dynamic ring 8 have a good seal to avoid leakage.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical seal for a horizontal wet grinding machine, comprising a connecting shaft (1), characterized in that: The outer wall of the connecting shaft (1) is provided with a groove (2), a sealing ring (3) is fixedly installed on the inner side of the groove (2), a groove (4) is provided on the outer wall of the connecting shaft (1) on the other side away from the groove (2), a sleeve (5) is provided on the outer side of the connecting shaft (1), a sealing ring (6) is fixedly installed on one side of the sleeve (5), a sealing ring (7) is fixedly installed on one side of the connecting shaft (1), a dynamic ring (8) is fixedly installed on the outer side of the sleeve (5), a clamping ring (9) is fixedly installed on one side of the dynamic ring (8), a static ring (10) is provided on one side of the dynamic ring (8), a flange (11) is fixedly installed on the outer side of the static ring (10), and a sealing ring (11) is fixedly installed on the outer side of the flange (11). A hexagon socket bolt (12) is arranged, an O-ring 1 (13) is fixedly installed on the inner side of the flange (11), a guide sleeve (14) is fixedly installed on the outer side of the shaft sleeve (5), a spring (15) is arranged on the outer side of the stationary ring (10), a liquid inlet (16) is opened on the outer side of the flange (11), an O-ring 2 (17) is arranged on the outer side of the flange (11), a secondary ring seat (18) is fixedly installed on the bottom of the shaft sleeve (5), an O-ring 3 (19) is fixedly installed on one side of the secondary ring seat (18), a clamping ring 2 (20) is fixedly installed on one side of the secondary ring seat (18), a liquid outlet (21) is opened on the other end of the flange (11), and a kettle body (22) is arranged on the outer side of the flange (11).

2. A horizontal wet grinding machine mechanical seal according to claim 1, characterized in that: The sealing ring 1 (3) is located between the connecting shaft (1) and the shaft sleeve (5), and the other end of the shaft sleeve (5) is matched with the connecting shaft (1) through the clamping groove 2 (4).

3. The mechanical seal of a horizontal wet grinding machine according to claim 1, characterized in that: The liquid inlet (16), the liquid outlet (21) and the guide sleeve (14) are in communication with each other, and the liquid inlet (16) and the liquid outlet (21) are respectively located on two sides of the shaft sleeve (5).

4. The mechanical seal of a horizontal wet grinding machine according to claim 1, characterized in that: The moving ring (8) and the auxiliary ring seat (18) are made of hard alloy material, and a second sealing ring (6) and a third sealing ring (7) are arranged between the moving ring (8) and the shaft sleeve (5).

5. The mechanical seal of a horizontal wet grinding machine according to claim 1, characterized in that: The flange (11) is fixedly mounted to the kettle body (22) via hexagon socket bolts (12), and a plurality of the hexagon socket bolts (12) are provided, and the plurality of the hexagon socket bolts (12) are distributed in a ring shape with respect to the flange (11).

6. A horizontal wet grinding machine mechanical seal according to claim 1, characterized in that: The O-ring three (19) is located at the gap between the shaft sleeve (5) and the auxiliary ring seat (18), and the clamping ring two (20) is located at the connection between the shaft sleeve (5) and the auxiliary ring seat (18).

7. A horizontal wet grinding machine mechanical seal according to claim 1, characterized in that: The stationary ring (10) is fixedly mounted on the flange (11) by means of bolts, and the O-ring (13) is located at the connection between the flange (11) and the dynamic ring (8).

Images