CN217528698U

CN217528698U - Short stress rolling mill transmission end far roll body sealing device

Info

Publication number: CN217528698U
Application number: CN202220062423.6U
Authority: CN
Inventors: 梁建科; 云胜奇; 师友荣; 杨三国
Original assignee: Shaanxi Longmen Iron and Steel Co Ltd
Current assignee: Shaanxi Longmen Iron and Steel Co Ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-10-04
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to a roll body sealing device far away of short stress rolling mill transmission end, the roll body passes through the bearing on the bearing frame and establishes in the roller box, the labyrinth end cover is established to roll body roll neck sealing boot, and the skeleton oil blanket is established in the inboard recess of labyrinth end cover to the sealing boot is established at roll body roll neck, and the sealing lip of skeleton oil blanket is outside. Simple structure is reasonable, and not only effectual impurity, debris, cooling water entering bearing inner chamber prevent, can guarantee the lubricating quality of rolling mill bearing frame inner chamber moreover. Meanwhile, the labor intensity of personnel for replacing the seal is reduced, and the bearing burning accident caused by external force friction or oil shortage of the rolling mill bearing is reduced.

Description

Short stress rolling mill transmission end far roll body sealing device

Technical Field

The utility model belongs to the steel rolling technical equipment field relates to a roller body sealing device is far away to short stress rolling mill.

Background

The sealing system of the far roller body of the rolling mill is a necessary condition for ensuring sufficient lubrication of the inner cavity of the bearing seat during the assembly of the rolling mill. At present, the skeleton oil seal is mostly arranged on a floating ring 7 with the lip opening facing outwards in the sealing of the far roller body, and the floating ring 7 is tightly pressed by a retainer ring outside the floating ring (see figure 2). This structure has the following problems: because the number of components is large, the time for replacing the sealing element is long, and the labor intensity of personnel is high; during assembly, the time is long, and impurities, impurities and cooling water easily enter the inner cavity of the bearing through the floating ring and the roll neck of the roll, so that oil pollution, poor lubrication and bearing burning accidents are caused. Improvements in the sealing system are therefore necessary.

Disclosure of Invention

The utility model aims at providing a roll body sealing device is far away to short stress rolling mill to solve the sealed problem of changing difficulty, change time length, sealed effect not good, existence production accident hidden danger risk of present rolling mill.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a short stress rolling mill transmission end far roll body sealing device comprises a roll body and a roll box, wherein the roll body is supported and arranged in the roll box through a bearing;

the roller body is provided with a labyrinth end cover in a sealing manner on a roller neck extending out of the roller box, and one side of the labyrinth end cover is embedded into the end part of the roller box in a sealing manner; at least one rubber retainer ring for sealing is arranged between the labyrinth end cover and the roller body;

the roller box is characterized by further comprising a framework oil seal, wherein the framework oil seal is also hermetically sleeved on the roller neck, the framework oil seal is arranged in an oil seal installation cavity formed in one side, embedded into the roller box, of the labyrinth end cover, and the sealing lip of the framework oil seal faces towards the roller box.

Furthermore, a threaded hole is formed in the labyrinth end cover, a threaded hole corresponding to the threaded hole is also formed in the outer end of the roller box, and the labyrinth end cover and the roller box are fixed through bolts and the threaded hole.

Furthermore, a groove for embedding a labyrinth end cover is formed in the roller box.

Furthermore, two rubber check rings are arranged between the labyrinth end cover and the roller body.

The utility model discloses beneficial effect is: after the sealing transformation of the far roller body of the transmission end of the rolling mill, the assembly spare parts are reduced, the structure is simple and reasonable, impurities, cooling water are effectively prevented from entering the inner cavity of the bearing, the lubricating quality of the inner cavity of the bearing seat of the rolling mill can be guaranteed, the labor intensity of personnel for replacing the seal is reduced, and the bearing burning accident of the bearing of the rolling mill caused by external force friction or oil shortage is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a structure of a sealing system before improvement.

In the figure: 1-roller body, 2-roller box, 3-labyrinth end cover, 4-skeleton seal, 5-rubber retainer ring and 6-threaded hole.

Detailed Description

In order to further understand the contents, features and functions of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Because cooling water gets into the bearing inner chamber through floating ring and roll journal easily among the prior art, causes oil pollution, and is lubricated bad, takes place to burn the bearing accident, so the utility model discloses roll body seal structure far away to the short stress rolling mill transmission end that has floating ring has improved to provide following embodiment:

example 1, as shown in fig. 1, a short stress rolling mill transmission end far roll body sealing device comprises a roll body 1 and a roll box 2, wherein the roll body 1 is supported and arranged in the roll box 2 through a bearing; a labyrinth end cover 3 is arranged on the roll neck of the roll body 1 extending out of the roll box 2 in a sealing and sealing way, and one side of the labyrinth end cover 3 is embedded into the end part of the roll box 2 in a sealing way; at least one rubber retainer ring 5 for sealing is arranged between the labyrinth end cover 3 and the roller body 1; still including skeleton oil blanket 4, skeleton oil blanket 4 also sealing sleeve establish the roll neck on, just skeleton oil blanket 4 set up the oil blanket installation intracavity that 3 embedding roll box 2's of labyrinth end cover one side was equipped with, the seal lip orientation of skeleton oil blanket 4 roll box 2. The labyrinth end cover 3 is provided with a threaded hole 6, the outer end of the roller box 2 is also provided with a threaded hole corresponding to the threaded hole 6, and the labyrinth end cover 3 and the roller box 2 are fixed through bolts and the threaded holes. And a groove for embedding the labyrinth end cover 3 is formed in the roller box 2. Two rubber check rings 5 are arranged between the labyrinth end cover 3 and the roller body 1.

Because the labyrinth end cover 3 and the framework oil seal 4 are respectively sealed and sleeved on the roll neck of the roll body 1, the labyrinth end cover 3 and the framework oil seal 4 are sealed tightly, and meanwhile, the lip of the framework oil seal 4 is matched with the roll box 2 and the roll body 1, so that accidents such as oil leakage, poor lubrication, bearing burning and the like are prevented.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a roller body sealing device far away of short stress rolling mill transmission end which characterized in that: the roller comprises a roller body (1) and a roller box (2), wherein the roller body (1) is supported and arranged in the roller box (2) through a bearing;

a labyrinth end cover (3) is arranged on the roll neck of the roll body (1) extending out of the roll box (2) in a sealing and sealing way, and one side of the labyrinth end cover (3) is embedded into the end part of the roll box (2) in a sealing way; at least one rubber retainer ring (5) for sealing is arranged between the labyrinth end cover (3) and the roller body (1);

still including skeleton oil blanket (4), skeleton oil blanket (4) also sealing sleeve establish the roll neck on, just skeleton oil blanket (4) set up in the oil blanket installation cavity that one side of labyrinth end cover (3) embedding roll box (2) was equipped with, the sealing lip of skeleton oil blanket (4) orientation roll box (2).

2. The short stress mill drive end remote roll body seal assembly of claim 1, wherein: the labyrinth end cover (3) is provided with a threaded hole (6), the outer end of the roller box (2) is also provided with a threaded hole corresponding to the threaded hole (6), and the labyrinth end cover (3) is fixed with the roller box (2) through a bolt and the threaded hole.

3. The short stress mill drive end remote roll body seal assembly of claim 1, wherein: and a groove for embedding the labyrinth end cover (3) is formed in the roller box (2).

4. A short stress rolling mill drive end remote roll body seal assembly according to any one of claims 1 to 3, wherein: two rubber check rings (5) are arranged between the labyrinth end cover (3) and the roller body (1).