Labyrinth sealing device for oil leakage of mill

Abstract

The utility model relates to the technical field of mill sealing, in particular to a labyrinth sealing device for mill oil leakage, which comprises a base, an oil shell fixedly connected to the top of the base, a gear rotatably connected to the inside of the oil shell, and a sealing mechanism fixed outside the gear and positioned inside the oil shell, the heat dissipation assembly is fixed outside the base and used for assisting the sealing mechanism, the sealing mechanism comprises first steel channels, the first steel channels are symmetrically and fixedly installed outside the oil shell, second steel channels are arranged on the two first steel channels in an inverted buckling mode, and oil return holes are formed in the sides, close to each other, of the two first steel channels and the two second steel channels. According to the scheme, the sealing mechanism is arranged, the first channel steel and the second channel steel are reversely staggered and matched with the angle steel and the flat iron to form the labyrinth type channel, and due to the radial channel and the speed difference of labyrinth sealing, lubricating oil generates multiple steering and speed changes in the channel, the leakage amount is effectively reduced, and the sealing effect is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mill sealing, in particular to a labyrinth sealing device for oil leakage of a mill. Background Technique

[0002] Cement ball mills are mainly used for grinding cement plant finished products and raw materials, and are also applicable to grinding various ores and other grindable materials in industrial and mining enterprises such as metallurgy, chemical industry, and electric power.

[0003] When the mill is in use, it needs to be refueled regularly to lubricate components such as gears. During the rotation of the mill, the lubricating oil attached to the gears splashes onto the mill housing under the action of centrifugal force. A large amount of oil adheres to the mill housing. Part of the oil flows into the oil retaining grooves on both sides of the housing, and the other part flows onto the gears. The oil return amount in the oil grooves on both sides of the gears increases, causing overflow. At the same time, the gears generate heat during rotation, which easily causes the lubricating oil to overheat and expand, making it even easier for the lubricating oil to leak out. The oil leakage of the mill will affect the normal operation of the device. Therefore, we propose a labyrinth sealing device for oil leakage of a mill. Content of the Utility Model

[0004] The purpose of the utility model is to provide a labyrinth sealing device for oil leakage of a mill to solve the problem of easy oil leakage when the existing mill is lubricated.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A labyrinth sealing device for oil leakage of a mill, including a base, a oil shell is fixedly connected to the top of the base, a gear is rotatably connected inside the oil shell, and further includes: a sealing mechanism fixed outside the gear and inside the oil shell, the sealing mechanism seals the oil; and a heat dissipation component fixed outside the base, the heat dissipation component is used to assist the sealing mechanism.

[0007] Preferably, the sealing mechanism includes first channel steels, the first channel steels are symmetrically and fixedly installed outside the oil shell, second channel steels are buckled on both of the first channel steels, and oil return holes are opened on one side of the two first channel steels close to each other and one side of the two second channel steels close to each other.

[0008] Preferably, one end of the two second channel steels close to each other is fixedly connected with flat irons, one side of the two flat irons close to each other is rotatably connected with the gear, and angle steels are symmetrically and fixedly connected to the top of the two first channel steels, and the two angle steels are close to but not in contact with the gear.

[0009] Preferably, the heat dissipation component includes a mounting plate, the mounting plate is fixedly installed outside the base, a water tank is fixedly installed on the top of the mounting plate, and a water pump is fixedly installed on one side of the water tank.

[0010] Preferably, a water inlet pipe is fixedly connected to the input end of the water pump, the other end of the water inlet pipe is fixedly connected to the water tank, and a water outlet pipe is fixedly connected to the output end of the water pump.

[0011] Preferably, a cooling box is fixedly connected to the outside of the base, a condensing pipe is fixedly connected to the inside of the cooling box, one end of the condensing pipe is fixedly connected to the water outlet pipe, the other end of the condensing pipe penetrates through the cooling box and is fixedly connected to a hose, and one end of the hose far from the condensing pipe is fixedly connected to the water tank.

[0012] Preferably, a blower is fixedly connected to the outside of the base, an air inlet pipe is fixedly connected to the input end of the blower, the air inlet pipe penetrates through and is fixedly connected to the cooling box, and an air outlet pipe is fixedly connected to the output end of the blower.

[0013] Preferably, a clamp is fixedly connected to the outside of the oil shell, a ring pipe is clamped inside the clamp, air nozzles are uniformly fixedly connected to one side of the ring pipe close to the oil shell, and the bottom of the ring pipe is fixedly connected to the air outlet pipe.

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

[0015] 1. In this solution, a sealing mechanism is provided. By the reverse dislocation of the first channel steel and the second channel steel, and in cooperation with the angle steel and the flat iron to form a labyrinth channel, due to the radial channels and speed differences of the labyrinth seal, the lubricating oil generates multiple turns and speed changes in the channel, effectively reducing the leakage amount and facilitating the improvement of the sealing effect;

[0016] 2. This solution is provided with a heat dissipation component. Through the mutual cooperation of structures such as a water pump, a water tank, a condensing pipe, and a cooling box, it is convenient to form cold air. The cold air inside the cooling box is conveyed to the inside of the ring pipe through the blower, and then discharged through the air nozzles, which is convenient for cooling the oil shell and the gears, thereby reducing the risk of the lubricating oil expanding and overflowing. Furthermore, in cooperation with the sealing mechanism, it can better prevent the lubricating oil from overflowing and facilitate the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a top view of the overall structure of the present utility model;

[0019] Figure 3 is a sectional view of the sealing mechanism structure of the present utility model Figure 1 ;

[0020] Figure 4 is a sectional view of the sealing mechanism structure of the present utility model Figure 2 ;

[0021] Figure 5 Schematic diagram of the heat dissipation component structure of the present utility model;

[0022] Figure 6 Side view of the overall structure of the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Base; 2. Oil shell; 3. Gear; 4. Sealing mechanism; 5. First channel steel; 6. Second channel steel; 7. Flat iron; 8. Angle iron; 9. Heat dissipation component; 10. Mounting plate; 11. Water tank; 12. Water pump; 13. Inlet pipe; 14. Outlet pipe; 15. Cooling box; 16. Condensing pipe; 17. Hose; 18. Fan; 19. Air inlet pipe; 20. Air outlet pipe; 21. Ring pipe; 22. Air nozzle; 23. Clamp; 24. Oil return hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1: As Figure 1 - Figure 6 shown, a labyrinth seal device for oil leakage of a mill in the illustration includes a base 1, an oil shell 2 fixedly connected to the top of the base 1, an oil groove is provided inside the oil shell 2 for accommodating lubricating oil, a gear 3 is rotatably connected inside the oil shell 2, and further includes: a sealing mechanism 4 fixed outside the gear 3 and located inside the oil shell 2, the sealing mechanism 4 seals the lubricating oil; and a heat dissipation component 9 fixed outside the base 1, the heat dissipation component 9 is used to assist the sealing mechanism 4, and both the sealing mechanism 4 and the heat dissipation component 9 are in two groups.

[0026] Furthermore, please refer to Figure 3 and Figure 4, the sealing mechanism 4 includes a first channel steel 5 which is a U-shaped channel steel. The first channel steel 5 is symmetrically and fixedly installed on the outside of the oil shell 2. A second channel steel 6 is buckled on each of the two first channel steels 5. The second channel steel 6 has the same shape as the first channel steel 5. Oil return holes 24 are opened on one side of the two first channel steels 5 close to each other and on one side of the two second channel steels 6 close to each other, facilitating the lubricating oil to return to the oil tank inside the oil shell 2. One end of the two second channel steels 6 close to each other is fixedly connected with a flat iron 7. The two flat irons 7 are rotatably connected to the gear 3 on one side close to each other. Angle steels 8 are symmetrically and fixedly connected to the tops of the two first channel steels 5. The two angle steels 8 are close to but not in contact with the gear 3. The two angle steels 8 form an enclosing shape from above, which can effectively prevent the lubricating oil from overflowing. With the cooperation of the first channel steel 5, the second channel steel 6, the flat iron 7 and the angle steel 8, a labyrinth-like channel is formed inside the oil shell 2. Due to the radial channels and speed differences of the labyrinth seal, the lubricating oil generates multiple turns and speed changes in the channel, effectively reducing the leakage amount and facilitating the improvement of the sealing effect.

[0027] In addition, it should be noted that this scheme is circularly full-welded according to the bending shape of the mill.

[0028] Embodiment 2: As Figure 5 and Figure 6 shown, this is a further description of Embodiment 1. In this embodiment, the heat dissipation component 9 includes a mounting plate 10 which is fixedly installed on the outside of the base 1. A water tank 11 is fixedly installed on the top of the mounting plate 10. A water pump 12 is fixedly installed on one side of the water tank 11. The specific model of the water pump 12 is selected according to the actual situation. The input end of the water pump 12 is fixedly connected with a water inlet pipe 13, and the other end of the water inlet pipe 13 is fixedly connected with the water tank 11. The output end of the water pump 12 is fixedly connected with a water outlet pipe 14. A cooling box 15 is fixedly connected to the outside of the base 1. Sealing gaskets are used at the joints of the cooling box 15 to prevent cold air leakage. A condensing pipe 16 is fixedly connected inside the cooling box 15. The condensing pipe 16 is a straight condensing pipe. One end of the condensing pipe 16 is fixedly connected with the water outlet pipe 14, and the other end of the condensing pipe 16 penetrates through the cooling box 15 and is fixedly connected with a hose 17. The end of the hose 17 far from the condensing pipe 16 is fixedly connected with the water tank 11. The water inside the water tank 11 is transported by the water pump 12, and after being condensed by the condensing pipe 16, it flows back into the water tank 11, enabling internal water circulation and facilitating water resource conservation.

[0029] Furthermore, a blower 18 is fixedly connected to the outside of the base 1. An air inlet pipe 19 is fixedly connected to the input end of the blower 18. The air inlet pipe 19 penetrates and is fixedly connected to the cooling box 15. An air outlet pipe 20 is fixedly connected to the output end of the blower 18. A clamp 23 is fixedly connected to the outside of the oil shell 2. A ring pipe 21 is clamped inside the clamp 23. A plurality of air nozzles 22 are evenly fixedly connected to the side of the ring pipe 21 close to the oil shell 2. The bottom of the ring pipe 21 is fixedly connected to the air outlet pipe 20. The ring pipe 21 is fixed to the outside of the oil shell 2 through the clamp 23, which facilitates the ring pipe 21 to discharge the cold air through the air nozzles 22. The air nozzles 22 are radially distributed along the bending direction of the mill, which further facilitates the heat dissipation of the oil shell 2 and the gear 3, and further effectively prevents the lubricating oil from overflowing. Cooperating with the sealing mechanism 4 can effectively solve the pain point of oil leakage of the mill and facilitate the stable operation of the protected equipment.

[0030] In summary, when using this device, during use, the lubricating oil flows inside the labyrinth passage composed of the first channel steel 5, the second channel steel 6, the flat iron 7 and the angle steel 8. Due to the radial channels and speed differences of the labyrinth seal, the lubricating oil generates multiple turns and speed changes in the passage, thereby reducing the leakage amount. At the same time, start the water pump 12. The water pump 12 transports the water inside the water tank 11 through the water inlet pipe 13 into the condenser pipe 16 inside the cooling box 15. After being condensed by the condenser pipe 16, cold air is formed inside the cooling box 15. Then start the blower 18. The blower 18 transports the cold air into the ring pipe 21 and discharges it through the air nozzles 22 to cool the oil shell 2 and the gear 3, thereby reducing the probability of lubricating oil overflow and strengthening the sealing effect.

[0031] It can be understood that the present utility model is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A labyrinth seal device for oil leakage in a grinding mill, comprising a base (1), an oil shell (2) fixedly connected to the top of the base (1), a gear (3) rotatably connected to the inside of the oil shell (2), It is characterized in that Also includes: a sealing mechanism (4) fixed to the outside of the gear (3) and located inside the oil casing (2), wherein the sealing mechanism (4) seals the oil; and, A heat dissipation component (9) is fixed to the outside of the base (1), and the heat dissipation component (9) is used to assist the sealing mechanism (4).

2. A labyrinth seal device for oil leakage in a grinding mill according to claim 1, characterized in that: The sealing mechanism (4) comprises a first channel steel (5), the first channel steels (5) are symmetrically fixedly mounted on the outside of the oil casing (2), two first channel steels (5) are invertedly provided with a second channel steel (6), and a side where the two first channel steels (5) are close to each other and a side where the two second channel steels (6) are close to each other are provided with an oil return hole (24).

3. A labyrinth seal device for oil leakage in a grinding mill according to claim 2, characterized in that: The ends of the two second channel steels (6) that are close to each other are fixedly connected to a flat iron (7), and the sides of the two flat irons (7) that are close to each other are rotationally connected to the gear (3). The tops of the two first channel steels (5) are symmetrically fixedly connected to angle steels (8), and the two angle steels (8) are close to the gear (3) but not in contact.

4. A labyrinth seal device for oil leakage in a grinding mill according to claim 1, characterized in that: The heat dissipation assembly (9) comprises a mounting plate (10), wherein the mounting plate (10) is fixedly mounted on the outside of the base (1), a water tank (11) is fixedly mounted on the top of the mounting plate (10), and a water pump (12) is fixedly mounted on one side of the water tank (11).

5. A labyrinth seal device for oil leakage in a grinding mill according to claim 4, characterized in that: The input end of the water pump (12) is fixedly connected to a water inlet pipe (13), the other end of the water inlet pipe (13) is fixedly connected to a water tank (11), and the output end of the water pump (12) is fixedly connected to a water outlet pipe (14).

6. A labyrinth seal device for oil leakage in a grinding mill according to claim 5, characterized in that: The outside of the base (1) is fixedly connected to a cooling box (15), the inside of the cooling box (15) is fixedly connected to a condenser (16), one end of the condenser (16) is fixedly connected to a water outlet pipe (14), the other end of the condenser (16) passes through the cooling box (15) and is fixedly connected to a hose (17), and the end of the hose (17) away from the condenser (16) is fixedly connected to a water tank (11).

7. A labyrinth seal device for oil leakage in a grinding mill according to claim 6, characterized in that: The outside of the base (1) is fixedly connected to a fan (18), the input end of the fan (18) is fixedly connected to an air inlet pipe (19), the air inlet pipe (19) passes through and is fixedly connected to the cooling box (15), and the output end of the fan (18) is fixedly connected to an air outlet pipe (20).

8. A labyrinth seal device for oil leakage in a grinding mill according to claim 1, characterized in that: The outside of the oil casing (2) is fixedly connected with a clamp (23), the inside of the clamp (23) is clamped with a ring tube (21), a side of the ring tube (21) close to the oil casing (2) is evenly fixedly connected with an air nozzle (22), and the bottom of the ring tube (21) is fixedly connected to an air outlet pipe (20).

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