Novel vertical mill grinding roller bearing sealing device

Abstract

The utility model relates to the technical field of vertical mill grinding rollers, and discloses a novel vertical mill grinding roller bearing sealing device which comprises a roller seat, a connecting roller is rotatably connected to the right end of the roller seat, a bearing is fixedly connected to the outer portion of the connecting roller, a sleeve is fixedly connected to the right end of the connecting roller, and mounting grooves are formed in the front side and the rear side of the interior of the sleeve. And first springs are fixedly connected to the interiors of the mounting grooves, limiting blocks are fixedly connected to the close sides of the two first springs, push rods are fixedly connected to the close sides of the two limiting blocks, and mounting blocks are fixedly connected to the close sides of the two push rods. According to the sealing device, the sleeve, the mounting groove and other structures are used in cooperation, so that the sealing ring can be pushed to make contact with the roller shaft for a long time, the service life of the sealing ring is prolonged, the replacement frequency of the sealing ring is greatly reduced, and the sealing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical mill rollers, in particular to a novel bearing sealing device for vertical mill rollers. Background Technique

[0002] Vertical mills are ideal large-scale grinding equipment, widely used in industries such as cement, electric power, metallurgy, chemical industry, and non-metallic minerals. They integrate crushing, drying, grinding, classification, and conveying, with high production efficiency. They can grind massive, granular, and powdered raw materials into the required powdered materials. The grinding roller of a vertical mill is a very crucial component of the vertical mill. Its function is to exert a strong pressure on the material to crush it. In actual use, a sealing device is generally used to seal the vertical mill roller in the prior art, so that the vertical mill roller can be used normally for a long time.

[0003] After retrieval, the existing Chinese patent publication number is: CN218742261U, which provides a flexible vertical mill roller sealing device. By setting a sleeve, a dust-proof filter cotton, a sleeve cover, and a second sealing gasket, and making them cooperate with each other, it can play a good sealing role for the flexible vertical mill roller, well avoid dust from entering the roller seat through the connection gap between the roller shaft and the roller seat, well improve the service life of the flexible vertical mill roller, ensure its stable operation, and thus improve the sealing effect of the flexible vertical mill roller sealing device.

[0004] Although the above patent can improve the sealing effect and ensure its stable operation, the above sealing device still has the following problems: In actual use of the prior art, its sealing ring, that is, the dust-proof filter cotton, generally directly contacts the roller shaft, so that the dust-proof filter cotton will not wear. At this time, if it is not replaced, the sealing performance will be reduced, and then if it is replaced, the use cost will increase. Therefore, those skilled in the art now propose a novel bearing sealing device for vertical mill rollers to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a novel bearing sealing device for vertical mill rollers, aiming to improve the problem that the dust-proof filter cotton of the sealing device in the prior art will wear after long-term use and the replacement cost is relatively high.

[0006] To achieve the above object, the utility model provides the following technical solutions:

[0007] A new type of vertical mill roller bearing sealing device, including a roller seat. The right end of the roller seat is rotatably connected with a connecting roller. A bearing is fixedly connected to the outside of the connecting roller. A sleeve is fixedly connected to the right end of the connecting roller. Installation grooves are respectively formed on the front and rear sides inside the sleeve. A first spring is fixedly connected inside the installation groove. On the adjacent sides of the two first springs, a limiting block is fixedly connected. On the adjacent sides of the two limiting blocks, a push rod is fixedly connected. On the adjacent sides of the two push rods, a mounting block is fixedly connected. On the adjacent sides of the two mounting blocks, a sealing ring is fixedly connected. A sleeve cover is installed at the right end of the sleeve. A roller shaft is fixedly connected to the right end of the sleeve cover. A grinding roller is fixedly connected to the outside of the roller shaft. A spraying assembly is fixedly connected to the inner wall of the roller seat. An extrusion assembly is arranged below the spraying assembly.

[0008] Further, the extrusion assembly includes three extrusion rods and a placement block. The three extrusion rods are all fixedly connected to the right end of the bearing. The placement block is fixedly connected to the inner part of the top of the roller seat. A connecting piece is slidably connected to the lower side inside the placement block.

[0009] Further, the spraying assembly includes an airbag and a nozzle. The airbag is fixedly connected to the upper side inside the placement block. A second spring is sleeved outside the airbag. The nozzle is fixedly connected to the left side of the placement block. The coating roller is fixedly connected to the upper side of the inner wall of the roller seat.

[0010] Further, the outside of the connecting roller is rotatably connected to the inside of the roller seat.

[0011] Further, the first springs on the front and rear sides are symmetrically designed. The outside of the limiting block is slidably connected to the inside of the installation groove.

[0012] Further, the outside of the push rod is slidably connected to the inside of the installation groove. The adjacent sides of the two sealing rings are both in contact with the outside of the roller shaft.

[0013] Further, the bottom end of the connecting piece is designed as an arc. The three extrusion rods are distributed in a triangle.

[0014] Further, one end of the second spring is fixedly connected to the upper side of the inner wall of the placement block. The other end of the second spring is fixedly connected to the top end of the connecting piece. The outside of the nozzle is fixedly connected to the inner wall of the roller seat.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, through the cooperation of structures such as the sleeve, the installation groove, the first spring, the limiting block, the push rod, and the mounting block, the sealing ring can be pushed to be in contact with the roller shaft for a long time, so that the service life of the sealing ring is improved, the replacement frequency of the sealing ring is greatly reduced, and the sealing cost is reduced.

[0017] 2. In the present utility model, through the coordinated use of structures such as the extrusion rod, the coating roller, the connecting piece, the second spring, and the airbag, it is possible to conveniently spray lubricating oil on the outside of the bearing, thus eliminating the need for workers to frequently apply lubricating oil, reducing the labor intensity of the workers, and further reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of a novel vertical mill roller bearing sealing device proposed by the present utility model;

[0019] Figure 2 It is a schematic structural view of the first spring of a novel vertical mill roller bearing sealing device proposed by the present utility model;

[0020] Figure 3 It is a schematic structural view of the extrusion rod of a novel vertical mill roller bearing sealing device proposed by the present utility model;

[0021] Figure 4 It is a schematic structural view of the bearing of a novel vertical mill roller bearing sealing device proposed by the present utility model;

[0022] Figure 5 It is Figure 4 an enlarged view of part A in

[0023] Legend Explanation:

[0024] 1. Roller; 2. Roller shaft; 3. Sleeve cover; 4. Sleeve; 5. Installation groove; 6. First spring; 7. Limit block; 8. Push rod; 9. Installation block; 10. Sealing ring; 11. Connecting roller; 12. Roller seat; 13. Placing block; 14. Airbag; 15. Second spring; 16. Connecting piece; 17. Sprinkler head; 18. Bearing; 19. Extrusion rod; 20. Coating roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figures 1-3, an embodiment provided by the present utility model: a novel vertical mill roller bearing sealing device, including a roller seat 12, the right end of the roller seat 12 is rotatably connected to a connecting roller 11, the outside of the connecting roller 11 is rotatably connected to the inside of the roller seat 12, a bearing 18 is fixedly connected to the outside of the connecting roller 11, a sleeve 4 is fixedly connected to the right end of the connecting roller 11, mounting grooves 5 are respectively provided on the front and rear sides inside the sleeve 4, a first spring 6 is fixedly connected inside the mounting groove 5, the front and rear first springs 6 are symmetrically designed, a limiting block 7 is fixedly connected to the adjacent side of the two first springs 6, the outside of the limiting block 7 is slidably connected to the inside of the mounting groove 5, a push rod 8 is fixedly connected to the adjacent side of the two limiting blocks 7, the outside of the push rod 8 is slidably connected to the inside of the mounting groove 5, a mounting block 9 is fixedly connected to the adjacent side of the two push rods 8, a sealing ring 10 is fixedly connected to the adjacent side of the two mounting blocks 9, the adjacent side of the two sealing rings 10 is in contact with the outside of the roller shaft 2, a sleeve cover 3 is installed at the right end of the sleeve 4, a roller shaft 2 is fixedly connected to the right end of the sleeve cover 3, a grinding roller 1 is fixedly connected to the outside of the roller shaft 2, a spraying assembly is fixedly connected to the inner wall of the roller seat 12, and an extrusion assembly is arranged below the spraying assembly.

[0027] Specifically, the roller seat 12 plays a limiting role on the internal connecting roller 11, so that the connecting roller 11 can rotate smoothly. By rotating the connecting roller 11, the bearing 18 can be driven to rotate, and the sleeve 4 can be driven to rotate. The two mounting grooves 5 are symmetrically designed, so that the force on the internal sealing ring 10 is more uniform. The mounting groove 5 plays a fixing role on the internal first spring 6, and the mounting groove 5 plays a limiting role on the internal push rod 8 and the limiting block 7, so that they can slide smoothly. By moving the sealing ring 10 outward, the sealing ring 10 can push the mounting block 9 to move outward, and then the mounting block 9 can push the push rod 8 to move, and the push rod 8 can push the limiting block 7 to compress the first spring 6 to generate elastic deformation, so that the sealing ring 10 can be conveniently installed. The mounting block 9 plays a fixing role on the sealing ring 10, so that the sealing ring 10 can be conveniently installed outside the mounting block 9. The sealing ring 10 is a dust-proof filter cotton, which can block external dust, so that the roller shaft 2 can rotate stably for a long time. The sleeve 4 plays a connecting role on the sleeve cover 3, so that the sleeve 4 can drive the sleeve cover 3 to rotate, and then the sleeve cover 3 can drive the roller shaft 2 to rotate, so that the roller shaft 2 can drive the grinding roller 1 to polish external objects.

[0028] Refer to Figures 4-5, The extrusion assembly includes three extrusion rods 19 and a placement block 13. The three extrusion rods 19 are all fixedly connected to the right end of the bearing 18. The three extrusion rods 19 are distributed in a triangular shape. The placement block 13 is fixedly connected to the inner top of the roller seat 12. A connecting piece 16 is slidably connected to the lower side inside the placement block 13. The bottom end of the connecting piece 16 is designed as an arc.

[0029] Specifically, an oil inlet pipe is installed at the left end of the placement block 13, so that lubricating oil can be added to the inside of the placement block 13, and the placement block 13 can store a certain amount of lubricating oil, thus greatly reducing the number of times workers add lubricating oil. The bearing 18 plays a fixing role for the extrusion rod 19, so that the bearing 18 can drive the extrusion rod 19 to move. The bottom end of the connecting piece 16 is designed as an arc, so that the extrusion rods 19 distributed in a triangular shape can equally push the connecting piece 16 to move upward, and thus the lubricating oil can be sprayed evenly. The roller seat 12 plays a fixing role for the placement block 13 inside, so that the placement block 13 will not shake. The placement block 13 plays a limiting role for the connecting piece 16 inside, so that the connecting piece 16 can move upward stably.

[0030] Refer to Figures 4-5 , The spraying assembly includes an airbag 14 and a nozzle 17. The airbag 14 is fixedly connected to the upper side inside the placement block 13. A second spring 15 is sleeved outside the airbag 14. The other end of the second spring 15 is fixedly connected to the top end of the connecting piece 16. One end of the second spring 15 is fixedly connected to the upper side of the inner wall of the placement block 13. The nozzle 17 is fixedly connected to the left side of the placement block 13. The coating roller 20 is fixedly connected to the upper side of the inner wall of the roller seat 12. The outside of the nozzle 17 is fixedly connected to the inner wall of the roller seat 12.

[0031] Specifically, the placement block 13 plays a fixing role for the airbag 14 and the second spring 15 inside. So when the connecting piece 16 is moved upward, the connecting piece 16 can simultaneously squeeze the airbag 14 and the second spring 15 to produce elastic deformation, and the airbag 14 plays a limiting role for the second spring 15 outside, so that the second spring 15 will not shift when being squeezed or doing a reset movement. When the airbag 14 is squeezed, the air inside can enter the inside of the placement block 13, so that the lubricating oil can be squeezed into the inside of the nozzle 17, so that the nozzle 17 can spray lubricating oil on the bearing 18. When the second spring 15 does a reset movement, it can push the connecting piece 16 to move downward, and thus the airbag 14 can inhale the external air, so as to prepare for spraying lubricating oil on the bearing 18 next time. The roller seat 12 plays a fixing role for the nozzle 17 inside, so that the nozzle 17 can be stably installed inside the roller seat 12, so that the lubricating oil can be stably sprayed on the bearing 18. The coating roller 20 can smear the lubricating oil outside the bearing 18, so that the lubricating oil is smeared more evenly.

[0032] Working principle: When it is necessary to seal the connection between the roller shaft 2 and the sleeve 4, the first spring 6 can continuously perform a reset movement, so that the first spring 6 can push the limit block 7 to move inward, so that the first spring 6 can push the push rod 8 to move inward, so that the push rod 8 can push the mounting block 9 to move inward, so that the mounting block 9 can push the sealing ring 10 to move inward, so that the sealing ring 10 can fit against the outside of the roller shaft 2. Thus, when the roller shaft 2 wears, the first spring 6 can push the sealing ring 10 to continue to fit against the outside of the roller shaft 2, so that the service life of the sealing ring 10 is improved, greatly reducing the replacement frequency of the sealing ring 10, thereby reducing the sealing cost. When it is necessary to apply lubricating oil to the bearing 18, lubricating oil is added to the inside of the placing block 13. Then, when the bearing 18 rotates, it can drive the extrusion rod 19 to move. When the extrusion rod 19 contacts the connecting piece 16, it can push the connecting piece 16 to move upward, so that the connecting piece 16 can push the second spring 15 and the airbag 14 to move upward, so that the second spring 15 can be squeezed to produce elastic deformation, and the airbag 14 can be squeezed, so that the gas inside the airbag 14 can enter the inside of the placing block 13, so that the lubricating oil inside the placing block 13 can be squeezed into the inside of the nozzle 17, so that the nozzle 17 can spray lubricating oil on the outside of the bearing 18. When the extrusion rod 19 no longer contacts the connecting piece 16, the second spring 15 can perform a reset movement, so that the second spring 15 can push the connecting piece 16 to move downward, so that the connecting piece 16 can drive the airbag 14 to move downward, so that the airbag 14 can inhale gas for the next spraying, eliminating the need for workers to often apply lubricating oil, thus reducing the labor intensity of workers and the labor cost.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A novel vertical mill roller bearing sealing device, comprising a roller seat (12), characterized in that: The right end of the roller seat (12) is rotatably connected to a connecting roller (11), the outside of the connecting roller (11) is fixedly connected to a bearing (18), the right end of the connecting roller (11) is fixedly connected to a sleeve (4), the sleeve (4) is provided with mounting grooves (5) on both the front and rear sides, the inside of the mounting groove (5) is fixedly connected to a spring 1 (6), the adjacent sides of the two springs 1 (6) are fixedly connected to a limit block (7), and the adjacent sides of the two limit blocks (7) are fixedly connected to the sleeve (4). A push rod (8) is connected, and the adjacent sides of the two push rods (8) are fixedly connected to a mounting block (9), and the adjacent sides of the two mounting blocks (9) are fixedly connected to a sealing ring (10), a sleeve cover (3) is installed at the right end of the sleeve (4), and the right end of the sleeve cover (3) is fixedly connected to a roller shaft (2), and the outside of the roller shaft (2) is fixedly connected to a grinding roller (1), and the inner wall of the roller seat (12) is fixedly connected to a spraying assembly, and an extrusion assembly is arranged on the lower side of the spraying assembly.

2. A novel vertical mill roller bearing sealing device according to claim 1, characterized in that: The extrusion assembly comprises three extrusion rods (19) and a placement block (13), the three extrusion rods (19) are fixedly connected to the right end of the bearing (18), the placement block (13) is fixedly connected to the top of the roller seat (12), and the lower side of the interior of the placement block (13) is slidably connected to a connecting piece (16).

3. A novel vertical mill roller bearing sealing device according to claim 2, characterized in that: The spray assembly comprises an air bag (14), a spray head (17) and two coating rollers (20); the air bag (14) is fixedly connected to the inner upper side of the placement block (13); a second spring (15) is sleeved on the outer side of the air bag (14); the spray head (17) is fixedly connected to the left side of the placement block (13); and the coating roller (20) is fixedly connected to the inner upper side of the roller seat (12).

4. The novel vertical mill roller bearing sealing device according to claim 1 is characterized in that: The outside of the connecting roller (11) is rotatably connected to the inside of the roller seat (12).

5. The novel vertical mill roller bearing sealing device according to claim 1 is characterized in that: The springs 1 (6) on the front and rear sides are symmetrically designed, and the outside of the limit block (7) is slidably connected to the inside of the mounting groove (5).

6. The novel vertical mill roller bearing sealing device according to claim 1 is characterized in that: The outside of the push rod (8) is slidably connected to the inside of the mounting groove (5), and the adjacent sides of the two sealing rings (10) are both in contact with the outside of the roller shaft (2).

7. The novel vertical mill roller bearing sealing device according to claim 3 is characterized in that: The bottom end of the connecting piece (16) is designed to be an arc, and the three extrusion rods (19) are distributed in a triangular shape.

8. The novel vertical mill roller bearing sealing device according to claim 3 is characterized in that: One end of the second spring (15) is fixedly connected to the upper side of the inner wall of the placement block (13), the other end of the second spring (15) is fixedly connected to the top end of the connecting piece (16), and the outside of the nozzle (17) is fixedly connected to the inner wall of the roller seat (12).

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