CN211757646U

CN211757646U - Water return device of internal circulation cooling roller way

Info

Publication number: CN211757646U
Application number: CN202020374931.9U
Authority: CN
Inventors: 张俊峰; 张亮; 金伟
Original assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Current assignee: Pangang Group Xichang Steel and Vanadium Co Ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-10-27
Anticipated expiration: 2030-03-23

Abstract

The utility model provides a water return device of an internal circulation cooling roller way, which comprises a barrel body provided with an inner cavity, wherein the inner wall of the barrel body is circumferentially welded with a first water-stop sheet for water separation and the passage of the roller way, the inner cavity is divided into a first cavity and a second cavity by the first water-stop sheet, and a first sealing ring is arranged between the first water-stop sheet and the roller way; the outer wall welding of barrel is used for the intercommunication outside with the first drain pipe of first cavity and communicate in the outside with the second drain pipe of second cavity. This application adopts secondary drainage structures, combines the rotatory roll of roll table, can be with first cavity and the cooling water discharge that flows into to the second cavity in, avoids the water to get into the bearing and causes bearing damage and roll table card to hinder.

Description

Water return device of internal circulation cooling roller way

Technical Field

The utility model relates to a metallurgical machinery equipment technical field, more specifically say, relate to a return water device of inner loop cooling roll table.

Background

At present, in the steel production process, the failure rate of an internal circulation cooling roller way is high, particularly the failure of the internal cooling roller way in the hot output of a hot rolling production line is prominent, the most common failure is the roller way blockage caused by water inflow of a bearing, the surface of strip steel is directly bruised after the roller way is blocked, even the production line is stopped and overhauled, and the economic loss is huge.

Therefore, how to effectively solve the problem of blocking of the internal cooling roller way to ensure the stable operation of the equipment is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a return water device of inner loop cooling roll table realizes the secondary drainage of backward flow cooling water, simple structure, and processing is convenient, can ensure equipment safe and stable operation.

The utility model provides a water return device of an internal circulation cooling roller way, which comprises a barrel body provided with an inner cavity, wherein a first water-stop sheet is welded on the inner wall of the inner cavity in the circumferential direction for water separation and the passage of the roller way, the inner cavity is divided into a first cavity and a second cavity by the first water-stop sheet, and a first sealing ring is arranged between the first water-stop sheet and the roller way; the outer wall welding of barrel is used for the intercommunication outside with the first drain pipe of first cavity and communicate in the outside with the second drain pipe of second cavity.

Preferably, the inner wall of the inner cavity is further welded with a second water-stop sheet for carrying out secondary isolation on the backflow cooling water, and a second sealing ring is further arranged between the second water-stop sheet and the roller way.

Preferably, the first water stop sheet and the second water stop sheet are respectively provided with a sealing ring mounting groove.

Preferably, the inner cavity is a circular-section inner cavity, and the first water-stop sheet and the second water-stop sheet are annular sheets.

Preferably, the first sealing ring and the second sealing ring are both O-shaped sealing rings.

Preferably, the cylinder body is further provided with an observation hole, and an observation window is installed in the observation hole.

Compared with the prior art, the utility model provides a return water device of inner loop cooling roll table is through at the first water-stop sheet of barrel inner wall welding to separate into first cavity and second cavity with the inner chamber, and set up first sealing washer between first water-stop sheet and roll table, communicate respectively in the first drain pipe and the second drain pipe of first cavity and second cavity at the welding of barrel outer wall. Therefore, under the action of the rotating force of the roller way, the cooling water flowing into the first cavity is discharged out of the cylinder body through the first water discharge pipe, and a first sealing ring is arranged between the first water-stop plate and the roller way, so that circulating water can be prevented from entering the bearing; in addition, this application still is equipped with the secondary drainage, if the circulating water gets into the second cavity, the second drain pipe can be discharged it, prevents that recirculated cooling water from getting into the bearing, avoids bearing damage, roll table jamming, can ensure the operation of inner loop cooling roll table and stabilize, reduces the roll table fault rate, prolongs the life of roll table.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a sectional view of a water return device of an internal circulation cooling roller bed provided by the utility model;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a cross-sectional view of the water returning device of the internal circulation cooling roller way provided by the utility model in a working state.

The device comprises an end cover 1, a lip-shaped sealing ring 2, a bearing seat 3, a pressing plate 4, an O-shaped sealing ring 5, a cylinder 6, a roller table 7, a water inlet collecting pipe 8, an end plate 9, a bolt assembly 10, a screw 11, a first water stop plate 12, a first drainage pipe 13, a first sealing ring 14, a second water stop plate 15, a second sealing ring 16, a self-aligning roller bearing 17, a second drainage pipe 18 and an observation window 19.

Detailed Description

The core of the utility model is to provide a water return device of inner loop cooling roll table, solved the technical problem that the bearing damaged and the roll table card hinders.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, fig. 1 is a sectional view of a water returning device of an internal circulation cooling roller bed according to the present invention; FIG. 2 is a left side view of FIG. 1; fig. 3 is a cross-sectional view of the water returning device of the internal circulation cooling roller way provided by the utility model in a working state.

The utility model provides a backwater device of internal circulation cooling roller way, including barrel 6, this barrel 6 is the drum, its inside is equipped with the inner chamber, the both ends face of barrel 6 respectively welds end panel 9 and clamp plate 4, clamp plate 4 connects bearing frame 3 through bolt assembly 10, the inside sealing washer installation cavity that is equipped with of clamp plate 4, install O type sealing washer 5 in the sealing washer installation cavity of clamp plate 4, the other end of bearing frame 3 connects end cover 1 through bolt assembly 10, be equipped with lip seal 2 in the sealing washer installation cavity of end cover 1, lip seal 2 cooperates with roller way 7 to seal and prevents that lubricating oil from leaking and cooling water from getting into lubricated cavity; bearing frame 3 internally mounted has self-aligning roller bearing 17, and self-aligning roller bearing 17 passes through the shaft shoulder and the position sleeve of roll table 7 and fixes a position, and clamp plate 4 and end cover 1 two sealing washer installation cavities constitute lubricated cavity with the bearing frame 3 inner chamber for seal the lubricated cavity of roller bearing 17.

In addition, the roller way 7 is of a hollow structure, and the roller way 7 penetrates through the end cover 1, the bearing block 3 and the pressing plate 4 and extends into the barrel 6; the inside of the end plate 9 is also provided with a water inlet collecting pipe 8 in a sealing way, the water inlet collecting pipe 8 is fixed on the end plate 9 through a screw 11, and the water inlet collecting pipe 8 is introduced from the outside of the cylinder 6 and extends to the inside of the roller way 7 so as to convey cooling water into the roller way 7.

The circulating cooling water of the roller way 7 flows as shown in fig. 1, the cooling water enters the inner cavity of the roller way 7 from the water inlet header 8, and after the cooling water is cooled circularly, the cooling water flows out from the gap between the inner cavity of the roller way 7 and the water inlet header 8 and enters the inner cavity. In addition, in the application, the inner cavity of the cylinder 6 is also provided with a first water stop sheet 12, the first water stop sheet 12 is welded along the circumferential direction of the inner wall of the cylinder 6, the middle part of the first water stop sheet 12 is provided with a through hole for the roller way 7 to pass through, the first water stop sheet 12 plays a water stop role and is arranged at the rear side of a water outlet of the roller way 7 connected with the water inlet header 8, so that the inner cavity is divided into a first cavity and a second cavity by the first water stop sheet 12, a first sealing ring 14 is arranged at the joint of the first water stop sheet 12 and the roller way 7, circulating cooling water flows into the first cavity through the water outlet, most of the cooling water is discharged from a first water discharge pipe 13 in high-speed rotation, if part of the backwater enters the second cavity due to uncontrollable factors, due to the multi-aligning sealing structure of the first sealing ring 14 and the lip-shaped sealing ring 2, the water body is discharged from the outside, effectively isolate the self-aligning roller bearing 17 and prevent the bearing from being damaged and the roller way 7 from being blocked.

Further, a second water-stop sheet 15 can be welded on the inner wall of the inner cavity of the cylinder body 6, a circular through hole matched with the outer wall of the roller way 7 is formed in the middle of the second water-stop sheet 15, a second sealing ring 16 is arranged on the second water-stop sheet 15, at the moment, the first water-stop sheet 12, the second water-stop sheet 15 and the inner cavity of the cylinder body 6 jointly form an airtight second cavity, backflow cooling water can be secondarily isolated, and the cooling water is prevented from entering the bearing seat 3 to damage the bearing 17.

In order to effectively fix the sealing ring, sealing ring mounting grooves can be formed in the inner walls of the through holes of the first water-stop sheet 12 and the second water-stop sheet 15, the sealing ring is directly mounted in the sealing ring mounting groove, or the sealing ring is fixed through adhesives such as glue and the like, so that the sealing ring is firmly mounted, and the sealing reliability is improved.

The barrel 6 specifically is circular barrel 6, and the inner chamber is circular cross section inner chamber, and first water-stop sheet 12 and second water-stop sheet 15 are the annular plate, and thickness should not be too thick, preferably lies in between 5 ~ 10 mm. Of course, the specific structure of the cylinder 6, the first water stop sheet 12 and the second water stop sheet 15 should be set according to actual requirements, and is not limited herein.

The first seal ring 14 and the second seal ring 16 are preferably, but not limited to, O-ring seals.

On the basis of above-mentioned embodiment, can also further set up the inspection hole on barrel 6, this inspection hole is the quad slit, circular port or polygonized structure, inspection hole department seal installation has observation window 19, this observation window 19 is plastics window or glass window, make things convenient for staff's inspection roll table 7 drainage condition and whether bearing 17 has the phenomenon of intaking through observation window 19, in time get rid of the abnormal conditions, ensure that the cooling water can not get into in the lubricated cavity of aligning roller bearing 17, thereby guarantee roll table 7 normal operating, guarantee normal production.

According to the roller bed internal circulation cooling principle, the sealing and water-proof structure is adopted, and the roller bed is matched for rotation, so that circulating water can be prevented from entering the bearing; this application is provided with dual drainage structures, can in time discharge recirculated cooling water, prevents to get into the bearing and damages the bearing, has solved the roll table jamming problem effectively.

The water return device of the internal circulation cooling roller way provided by the utility model is described in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The water return device of the internal circulation cooling roller way comprises a barrel body (6) provided with an inner cavity, and is characterized in that a first water-stop plate (12) used for water separation and passing of a roller way (7) is welded on the inner wall of the inner cavity in the circumferential direction, the inner cavity is divided into a first cavity and a second cavity by the first water-stop plate (12), and a first sealing ring (14) is arranged between the first water-stop plate (12) and the roller way (7); and a first drain pipe (13) which is used for communicating the outside with the first cavity and a second drain pipe (18) which is communicated with the outside with the second cavity are welded on the outer wall of the barrel (6).

2. The water return device of the internal circulation cooling roller way according to claim 1, wherein a second water-stop plate (15) for performing secondary isolation on the returned cooling water is welded to the inner wall of the inner cavity, and a second sealing ring (16) is further arranged between the second water-stop plate (15) and the roller way (7).

3. The water return device of the internal circulation cooling roller way according to claim 2, wherein the first water stop plate (12) and the second water stop plate (15) are respectively provided with a sealing ring installation groove.

4. The water return device of the internal circulation cooling roller way according to claim 3, wherein the inner cavity is a circular cross-section inner cavity, and the first water-stop sheet (12) and the second water-stop sheet (15) are annular sheets.

5. The water return device of the internal circulation cooling roller way according to claim 4, wherein the first sealing ring (14) and the second sealing ring (16) are both O-shaped sealing rings.

6. The water return device of the internal circulation cooling roller way according to any one of claims 1 to 5, wherein the cylinder (6) is further provided with an observation hole, and an observation window (19) is installed in the observation hole.