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CN-224222328-U - Vertical roll system of mechanical seal

CN224222328UCN 224222328 UCN224222328 UCN 224222328UCN-224222328-U

Abstract

The utility model provides a mechanical seal vertical roll system, which comprises a roll, a universal joint shaft, a universal shaft sleeve and a bearing, wherein the universal joint shaft, the universal shaft sleeve and the bearing are sequentially arranged on the outer side of the roll, a seal assembly is arranged between the universal shaft sleeve and the bearing, the seal assembly comprises a seal cover and a clamping ring, the seal cover is positioned between the universal shaft sleeve and the bearing of a vertical roll mill, the seal cover and the outer wall of the bearing form a seal structure wrapping the outer side of an inner sleeve of the bearing, and the clamping ring is arranged on the outer side of the seal cover and is tightly propped against the outer wall of the tight cover. The utility model has the beneficial effects that the length of the transmission end of the roller is prolonged, the sealing component is arranged, the cooling water of the roller and the iron scale are prevented from invading the bearing, the service life of the bearing is prolonged, the roller changing frequency of the rolling mill is reduced, and the yield of a production line is increased.

Inventors

  • DUAN GUANGDONG

Assignees

  • 中重科技(天津)股份有限公司

Dates

Publication Date
20260512
Application Date
20250428

Claims (10)

  1. 1. The vertical roll system of the mechanical seal is characterized by comprising a roll (6), and a universal joint shaft (1), a universal shaft sleeve (2) and a bearing (5) which are sequentially arranged outside the roll (6), wherein a seal assembly (3) is arranged between the universal shaft sleeve (2) and the bearing (5), and the seal assembly (3) comprises: The sealing cover (31) is positioned between the universal shaft sleeve (2) and the bearing (5) of the vertical roller mill, and the universal shaft sleeve (2), the sealing cover (31) and the outer wall of the bearing (5) form a sealing structure wrapped outside the inner sleeve of the bearing (5); The clamping ring (32), the clamping ring (32) is arranged outside the sealing cover (31), and the inner wall of the clamping ring (32) is tightly propped against the outer wall of the sealing cover (31).
  2. 2. The mechanical seal vertical roll system as set forth in claim 1, wherein the seal cover (31) is formed by splicing two arc plates (311), a sinking groove (312) is formed in a position, close to the spliced portion, of the outer wall of the arc plate (311), a seal groove for placing a seal plate (33) is formed by two adjacent sinking grooves (312) on the two arc plates (311), and the seal plate (33) is fixedly arranged in the seal groove.
  3. 3. The vertical roll system for mechanical seal according to claim 2, wherein a gasket is arranged between the sealing plate (33) and the sealing groove, and the gasket is in interference fit with the sealing groove.
  4. 4. The mechanical seal vertical roll system as set forth in claim 2, wherein a plurality of connecting grooves (313) are uniformly formed at two ends of the arc plates (311), the plurality of connecting grooves (313) at the same end are equidistantly distributed, the distance is equal to the length of the connecting grooves (313), connecting blocks are formed between two adjacent connecting grooves (313), the plurality of connecting blocks on the two arc plates (311) are mutually staggered, and the connecting block on one arc plate (311) is located in the connecting groove (313) on the other arc plate (311).
  5. 5. The mechanical seal vertical roll system as set forth in claim 2, wherein the outer wall of the sealing plate (33) is provided with an arc groove (331), the inner wall of the clamping ring (32) is fixedly provided with an arc block (321) corresponding to the arc groove (331), and the arc block (321) abuts against the inner wall of the arc groove (331).
  6. 6. The mechanical seal vertical roll system according to claim 5, wherein the outer wall of the clamping ring (32) is fixedly provided with a reinforcing rib (322), and the reinforcing rib (322) is arranged corresponding to the arc-shaped block (321).
  7. 7. The mechanical seal vertical roller system according to claim 1, wherein the bearing (5) is a double-row tapered roller bearing (5), oil seals (4) are arranged at two ends of the bearing (5), and the seal cover (31) wraps the outer side of the oil seals (4).
  8. 8. The mechanical seal vertical roll system as set forth in claim 1, wherein the clamping ring (32) is composed of two semicircular plates, one end of each semicircular plate is fixedly provided with a hinging block, the other end of each semicircular plate is fixedly provided with a fixing block (323), and the two semicircular plates are mutually hinged through the hinging blocks.
  9. 9. The mechanical seal vertical roll roller system according to claim 8, wherein the two fixing blocks (323) are provided with mounting holes, mounting bolts are arranged in the mounting holes, the mounting bolts penetrate through the two fixing blocks (323) and are in threaded connection with mounting nuts, nuts of the mounting bolts are tightly propped against the fixing blocks (323), and the mounting nuts are tightly propped against the other fixing block (323).
  10. 10. The mechanical seal vertical roll system according to claim 9, wherein a clamping block is fixedly arranged on the fixed block (323) adjacent to the mounting nut, a clamping groove corresponding to the mounting nut is formed in the clamping block, and the mounting nut is positioned in the clamping groove.

Description

Vertical roll system of mechanical seal Technical Field The utility model belongs to the field of sealing structures, and particularly relates to a vertical roller system for mechanical sealing. Background The hot rolled strip steel is widely applied to industries such as household appliances, automobiles, shipbuilding, hardware products and the like, and can be used as a raw material for producing cold-rolled, welded pipes and cold-formed steel. With the rapid development of the economy of China, especially the 21 st century, the demand and the yield of hot rolled strip steel products in China are continuously increased. Therefore, how to shorten the roll changing frequency and prolong the service life of the vulnerable parts becomes a focus point for the current steel mill production line to widely seek upgrading and reconstruction. The vertical roller mill is positioned in the rolling area of the strip steel production line, is mainly used for controlling the width and the head-tail shape of the strip steel, changes the edge of the blank from an as-cast structure to a rolled structure, avoids edge cracking of the blank in the horizontal rolling process, and has the effect of changing the width of the strip steel. The rolling device is a main component of a vertical roller mill, and consists of a roller, a bearing seat and the like, wherein the rolling force of blanks in the production process is totally acted on the bearing assembled by the roller. Therefore, the roller bearing is a key point for determining whether the vertical roller mill can be used normally. At present, a vertical roller system bearing is lubricated by dry oil, two ends of the bearing are sealed by back-to-back oil seals, so that leakage of lubricating dry oil can be prevented, invasion of external iron scales and roller cooling water can be prevented, and the oil seals have certain compensation capability for abrasion of roller sealing positions. However, the existing vertical roller system has the phenomenon that along with the aging of an oil seal, the oil seal is not replaced timely, and external iron scales and roller cooling water invade into a bearing, so that the bearing is damaged, the service life of the bearing is influenced, the roller replacing frequency of a production line is further increased, and the production rhythm and the yield of the production line are influenced. Disclosure of utility model In view of the above, the present utility model aims to provide a mechanically sealed vertical roll system, so as to solve at least one of the above technical problems. In order to achieve the above purpose, the technical scheme of the utility model is realized as follows: The vertical roll roller system of mechanical seal, the vertical roll roller system includes, the roll to and set gradually in universal joint, universal shaft sleeve, the bearing in the roll outside, be equipped with seal assembly between universal shaft sleeve and the bearing, seal assembly includes: The sealing cover is positioned between the universal shaft sleeve of the vertical roller mill and the bearing, and the universal shaft sleeve, the sealing cover and the outer wall of the bearing form a sealing structure wrapped outside the bearing inner sleeve; the clamping ring is arranged on the outer side of the sealing cover, and the inner wall of the clamping ring is tightly propped against the outer wall of the sealing cover. Further, the seal cover is formed by splicing two arc plates, sinking grooves are formed in the positions, close to the splicing parts, of the outer walls of the arc plates, and two adjacent sinking grooves on the two arc plates form a seal groove for placing a seal plate, and the seal plate is fixedly arranged in the seal groove. Further, a sealing gasket is arranged between the sealing plate and the sealing groove, and the sealing gasket is in interference fit with the sealing groove. Further, a plurality of spread grooves are evenly opened at the both ends of arc, and a plurality of spread grooves that are located same one end equidistance distributes, and the distance equals spread groove length, has formed the connecting block between two adjacent spread grooves, and a plurality of connecting blocks on two arcs are crisscross to set up each other, and the connecting block on one arc is located the spread groove on another arc. Further, an arc groove is formed in the outer wall of the sealing plate, an arc block corresponding to the arc groove is fixedly arranged on the inner wall of the clamping ring, and the arc block abuts against the inner wall of the arc groove. Further, reinforcing ribs are fixedly arranged on the outer wall of the clamping ring, and the reinforcing ribs are arranged corresponding to the arc-shaped blocks. Furthermore, the bearing is a double-row tapered roller bearing, oil seals are arranged at two ends of the bearing, and the sealing cover wraps the outer side of the oil seal. Further, the clamping r