CN211852798U

CN211852798U - Grinding roller sealing device of vertical mill

Info

Publication number: CN211852798U
Application number: CN201922232099.9U
Authority: CN
Inventors: 赵贵秀; 李艳静; 赵红春; 吕晓军; 袁宝
Original assignee: Hangzhou Shanya South Cement Co ltd
Current assignee: Hangzhou Shanya South Cement Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-11-03
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses an immediately, grind grinding roller sealing device, including grinding roller axle, suit in the gland of grinding roller axle, sealed lid, sealing washer and seal cover, the cover is equipped with wear-resisting cover on the outer wall of grinding roller axle, the seal cover is pressed on the outer wall of wear-resisting cover, a plurality of seal grooves have evenly been seted up along its length direction on the wear-resisting cover outer wall, be equipped with the sealing ring in the seal groove, sealing ring outside protrusion in wear-resisting cover outer wall. The utility model has the advantages of improve sealed effect, increase of service life.

Description

Grinding roller sealing device of vertical mill

Technical Field

The utility model relates to a sealing device technical field especially relates to a grind roller sealing device immediately.

Background

The cement vertical mill is mainly used for grinding production of cement clinker. In recent years, with the improvement of design and manufacturing technology of a vertical mill and the innovation of a grinding process, the cement vertical mill is successfully applied abroad as a cement final grinding device. The grinding roller is a main part for grinding materials.

At present, the sealing position of the conventional grinding roller of the cement vertical mill is that an outer sleeve is directly matched with a rotating shaft, so that the grinding roller works for a long time, the inner surface of the outer sleeve and the outer surface of the rotating shaft rub against each other, the shaft is abraded to a certain extent, and the service life of the cement vertical mill is shortened.

Disclosure of Invention

The utility model aims at providing a to the above-mentioned problem that exists among the prior art, provide a vertical mill grinding roller sealing device.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an immediately, grind grinding roller sealing device, includes grinding roller axle, suit in gland, sealed lid, sealing washer and the seal cover of grinding roller axle, the cover is equipped with wear-resisting cover on the outer wall of grinding roller axle, the seal cover is pressed on the outer wall of wear-resisting cover, evenly seted up a plurality of seal grooves along its length direction on the wear-resisting cover outer wall, be equipped with the sealing ring in the seal groove, sealing ring outside protrusion in wear-resisting cover outer wall.

The utility model prevents the surface of the grinding roll shaft from directly contacting with the sealing element through the arrangement of the wear-resistant sleeve, avoids the serious abrasion of the sealing contact surface of the grinding roll shaft, and can recover good sealing effect by replacing the sealing ring and the wear-resistant sleeve once the abrasion is serious; the outer side of the sealing ring protrudes out of the outer wall of the wear-resistant sleeve, so that impact force between the sealing sleeve and the wear-resistant sleeve is buffered, the sealing sleeve and the wear-resistant sleeve are prevented from colliding for a long time to influence the grinding material effect of the grinding roll shaft, and the influence of resonance is avoided.

The bottom of the sealing ring is provided with a circle of inward-inclined supporting ring, the supporting ring is abutted against the inner wall of the sealing groove to support the sealing ring, the supporting ring plays a better supporting role when the sealing ring is compressed, the sealing ring is prevented from inclining and the like after being compressed, and the service life of the sealing ring is prolonged; the support ring leanin makes the holding power that provides bigger, and the supporting effect is better, and compares the traditional sealing ring that does not set up the support ring, and the bullet of this kind of sealing ring moves the effect better, and the ability of buffering impact force is stronger.

The sealing ring bottom is connected through the elastic component with the seal groove inner wall, the elastic groove that supplies the embedding of elastic component upper end is seted up to the sealing ring bottom, and the sealing ring receives can move in the seal groove after the impact force, and the elastic force that produces after the elastic component compression then can drive the outside action of sealing ring and contradict on the seal cover inner wall, guarantees that the sealing ring works for a long time, and difficult inefficacy.

The sealing cover is fixed on the grinding roll shaft, a sealing ring chamber is arranged on the inner bearing side of the sealing cover in a ring shaft mode, and a sealing filler chamber is arranged on the other side of the sealing cover in a ring shaft mode; the grinding roller sealing device is characterized in that the sealing ring is arranged in the sealing ring chamber, the sealing filler chamber is filled with the sealing filler, the gland is fixed on the sealing filler chamber side of the sealing cover to plug the sealing filler, and due to the arrangement of the sealing ring and the sealing filler, two-stage sealing is realized, dust is completely blocked outside the grinding roller and cannot enter the bearing, so that the sealing effect is enhanced, the service life of the grinding roller is prolonged, and the cost is saved.

The sealing filler is made of calcium silicate asbestos, is sealed and wear-resistant after being compressed, has a good sealing effect, can be used for a long time, reduces the use cost and improves the production efficiency.

The sealing cover is close to sealing cover one side and has radially seted up a plurality of first seal grooves, be equipped with on the sealing cover lateral wall with first seal groove matched with sealing, the embedding of sealing can realize good sealed effect to the first seal groove that corresponds in, its cost is lower, does not relate to the influence problem of sealing material to sealed effect, and can restrict the relative motion between sealing cover and the wear-resisting cover.

Be equipped with the oil duct on the seal cover, be equipped with the oil duct that adds that is used for intercommunication oil duct and first seal groove in the seal part respectively, the oil duct is connected with the batch oil tank in the upper end of seal cover, the storage has lubricating grease in the batch oil tank, and lubricating grease in the batch oil tank can loop through oil duct and add the oil duct and get into the clearance before filling seal part and the first seal groove in the first seal groove that corresponds respectively, reaches sealed purpose, and every seal part correspondence is provided with solitary oil duct to guarantee all can be filled by the lubricating grease in every first seal groove, guarantee the interior sealed effect of every first seal groove.

Add the oil duct and be located the sealing portion upper end with first seal groove intercommunication end, thereby add the lubricated grease in the oil duct and follow the outflow of sealing portion upper end and fill whole first seal groove, be difficult for following the shake of grinding roller axle and filling the oil duct backward flow after the first seal groove is filled to lubricated grease, guarantee the result of use of lubricated grease.

Both sides all are equipped with the sealing member about the first seal groove, prevent effectively that the lubricating grease in the first seal groove from revealing, reduce the use amount of lubricating grease, reduction in production cost improves sealed effect.

The sealing cover and the sealing sleeve are spliced to form a sealing caulking groove for mounting the sealing element, so that the sealing element is convenient to mount.

Compared with the prior art, the utility model has the advantages of improve sealed effect, increase of service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

in the figure, 1, a grinding roller shaft; 2. a gland; 3. a sealing cover; 4. a seal ring; 5. sealing sleeves; 6. a wear-resistant sleeve; 7. a sealing groove; 8. a seal ring; 9. a support ring; 10. an elastic member; 11. an elastic groove; 12. a seal ring chamber; 13. sealing the packing chamber; 14. sealing and filling; 15. a first seal groove; 16. a sealing part; 17. an oil passage; 18. adding an oil duct; 19. an oil storage tank; 20. a seal member; 21. and sealing the caulking groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-2, a vertical mill grinding roller sealing device comprises a grinding roller shaft 1, a gland 2 sleeved on the grinding roller shaft, a sealing cover 3, a sealing ring 4 and a sealing sleeve 5, wherein a wear-resistant sleeve 6 is sleeved on the outer wall of the grinding roller shaft 1, the sealing sleeve 5 is pressed on the outer wall of the wear-resistant sleeve 6, a plurality of sealing grooves 7 are uniformly formed in the outer wall of the wear-resistant sleeve 6 along the length direction of the wear-resistant sleeve, a sealing ring 8 is arranged in each sealing groove 7, and the outer side of each sealing ring 8 protrudes out of.

Preferably, the sealing ring 4 is an O-ring rubber ring.

In more detail, the bottom of the sealing ring 8 is provided with a circle of supporting ring 9 inclined to the axis of the sealing ring, the supporting ring 9 is in the shape of a hollow circular truncated cone, and the supporting ring 9 abuts against the inner wall of the sealing groove 7 to support the sealing ring 8.

Further saying in detail, 8 bottoms of sealing ring are connected through elastic component 10 with 7 inner walls of seal groove, and elastic component 10 is the spring, and 8 bottoms of sealing ring are offered the elastic groove 11 that supplies the embedding of elastic component 10 upper end, and when the impact force that sealing ring 8 received was too big, elastic component 10 can be whole imbeds to elastic groove 11 in, prevent that elastic component 10 atress from too big emergence distortion for the life extension of elastic component 10.

In more detail, the sealing cover 3 is fixed on the grinding roll shaft, a sealing ring chamber 12 is arranged on the inner bearing side of the sealing cover in a ring shaft mode, and a sealing filler chamber 13 is arranged on the other side of the sealing cover in a ring shaft mode; the sealing ring 4 is arranged in the sealing ring chamber 12, the sealing filler chamber 13 is filled with the sealing filler 14, and the gland 1 is fixed on the sealing filler chamber 13 side of the sealing cover 3 to seal the sealing filler 14.

Preferably, the sealing packing 14 is made of calcium silicate asbestos.

In a further detail, one side of the sealing cover 3, which is close to the sealing sleeve 5, is radially provided with a plurality of first sealing grooves 15, the side wall of the sealing sleeve 5 is provided with a sealing part 16 matched with the first sealing grooves 15, the sealing part 16 is annular, and when lubricating grease flows out from the upper end of the sealing part 16, the lubricating grease flows downwards along the inclined plane of the sealing part 16 to lubricate the surface of the sealing part 16, so that the surface of the sealing part 16 can be sufficiently lubricated, and the sealing effect is ensured.

In further detail, an oil duct 17 is arranged on the sealing sleeve 5, an oil filling duct 18 for communicating the oil duct 17 with the first sealing groove 15 is respectively arranged in the sealing portion 16, the oil duct 17 is connected with an oil storage tank 19 at the upper end of the sealing sleeve 5, and lubricating grease, namely english name: a lubricating grease; grease-like semisolid of grease consistency. The friction part is used for the machinery and plays a role in lubrication and sealing. Also used on metal surface to fill gap and prevent rust. Is prepared mainly from mineral oil (or synthetic lubricating oil) and thickening agent.

To be more specific, the oil filling passage 18 is located at the upper end of the seal portion 16 at the end communicating with the first seal groove 15.

In more detail, the upper side and the lower side of the first sealing groove 15 are both provided with a sealing element 20, and the sealing element 20 is an annular sealing ring.

In more detail, the sealing cap 3 and the sealing sleeve 5 are spliced to form a sealing embedded groove 21 for installing the sealing element 20, and grease is prevented from leaking from a splicing gap between the sealing cap 3 and the sealing sleeve 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a found grinding roller sealing device, includes grinding roller axle (1), suit in gland (2), sealed lid (3), sealing washer (4) and seal cover (5) of grinding roller axle, its characterized in that: the outer wall of the grinding roller shaft (1) is sleeved with a wear-resistant sleeve (6), the sealing sleeve (5) is pressed on the outer wall of the wear-resistant sleeve (6), a plurality of sealing grooves (7) are uniformly formed in the outer wall of the wear-resistant sleeve (6) along the length direction of the wear-resistant sleeve, sealing rings (8) are arranged in the sealing grooves (7), and the outer sides of the sealing rings (8) protrude out of the outer wall of the wear-resistant sleeve (6).

2. A grinding roll sealing device for a vertical mill according to claim 1, wherein: the bottom of the sealing ring (8) is provided with a circle of inward inclined supporting ring (9), and the supporting ring (9) is abutted against the inner wall of the sealing groove (7) to support the sealing ring (8).

3. A grinding roll sealing device for a vertical mill according to claim 2, wherein: the bottom of the sealing ring (8) is connected with the inner wall of the sealing groove (7) through an elastic piece (10), and an elastic groove (11) for embedding the upper end of the elastic piece (10) is formed in the bottom of the sealing ring (8).

4. A grinding roll sealing device for a vertical mill according to claim 3, wherein: the sealing cover (3) is fixed on the grinding roll shaft, a sealing ring chamber (12) is arranged on the inner side of the sealing cover in a ring shaft mode, and a sealing filler chamber (13) is arranged on the other side of the sealing cover in a ring shaft mode; the sealing ring (4) is arranged in the sealing ring chamber (12), the sealing filler chamber (13) is filled with sealing filler (14), and the gland (2) is fixed on the sealing filler chamber (13) side of the sealing cover (3) to plug the sealing filler (14).

5. A grinding roll sealing device for a vertical mill according to claim 4, wherein: the sealing filler (14) is made of calcium silicate asbestos.

6. A grinding roll sealing device for a vertical mill according to claim 1, wherein: a plurality of first seal grooves (15) are radially seted up on one side of sealing cover (3) close to seal cover (5), be equipped with on the seal cover (5) lateral wall with first seal groove (15) matched with sealing portion (16).

7. A grinding roll sealing device for a vertical mill according to claim 6, wherein: be equipped with oil duct (17) on seal cover (5), be equipped with oil gallery (18) that are used for communicating oil duct (17) and first seal groove (15) in sealing portion (16) respectively, oil duct (17) are connected with batch oil tank (19) in the upper end of seal cover (5), the storage has lubricating grease in batch oil tank (19).

8. A grinding roll sealing device for a vertical mill according to claim 7, wherein: the oil adding channel (18) is communicated with the first sealing groove (15) and is arranged at the upper end of the sealing part (16).

9. A grinding roll sealing device for a vertical mill according to claim 8, wherein: sealing elements (20) are arranged on the upper side and the lower side of the first sealing groove (15).

10. A grinding roll sealing device for a vertical mill according to claim 9, wherein: the sealing cover (3) and the sealing sleeve (5) are spliced to form a sealing caulking groove (21) for installing the sealing element (20).