CN201318520Y - Rotary seal structure for work roller - Google Patents
Rotary seal structure for work roller Download PDFInfo
- Publication number
- CN201318520Y CN201318520Y CNU2008203036128U CN200820303612U CN201318520Y CN 201318520 Y CN201318520 Y CN 201318520Y CN U2008203036128 U CNU2008203036128 U CN U2008203036128U CN 200820303612 U CN200820303612 U CN 200820303612U CN 201318520 Y CN201318520 Y CN 201318520Y
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- CN
- China
- Prior art keywords
- work roll
- seal structure
- rotary seal
- pipe
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Continuous Casting (AREA)
Abstract
The utility model discloses a rotary seal structure for water cooling systems in metallurgical industry, in particular to a rotary seal structure for straightening rollers of hot levelers and work rollers of continuous casters. The leak-stopping differential pressure swivel joint provided by the utility model comprises a work roller mounted in a bearing block, a cavity arranged in a roller body of the work roller, an inner piece mounted on a journal end face of the work roller and an outer piece mounted on an end cover of the bearing block. The inner piece comprises an end cover which is provided with an inner pipe for inserting into the cavity in the roller body of the work roller, and one side of the inner pipe is provided with a water outlet. The outer piece comprises an outer cover which is provided with a water inlet pipe, and a support plate of the water inlet pipe is provided with a water return hole. The water inlet pipe is inserted into an inner pipe of the inner piece without hermetic sealing, and the end cover of the inner piece is provided with a water return hole communicated with the cavity. The rotary seal structure of the utility model can protect cool water against leakage, reduces accidents, and greatly extends the service life.
Description
Technical field
The utility model relates to the rotary seal structure that a kind of cooling water system that is used for metallurgy industry uses, and particularly is suitable for the rotary seal of thermal straightening machine straightening roller, the use of casting machine work roll cooling water system.
Background technique
In metallurgy industry, owing to often be in the hot operation state, so need cool off to equipment.Circulate in the internal cavities of work roll, arrive purpose and all be to use swivel joint that cooling water is input to the work roll cooling for the cooling water system of rotating equipments such as thermal straightening machine work roll, casting machine work roll.And present swivel joint in use leaks because the relative rotary motion of joint and work roll causes seal ring to lose efficacy and damage, cause near the appliance component of swivel joint to damage, influence the proper functioning of equipment, reduce manufacturing efficiency, improve cost of production.
As the patent documentation of US6059013A, a kind of cooling liquid work feeder that is used for work roll is disclosed, its internals and outside adopted seal arrangement between the part, therefore in the course of the work, cause bad seals easily, influence the normal operation of equipment.
Summary of the invention
Technical problem to be solved in the utility model provides the rotary seal structure that a kind of cooling water system that utilizes pressure reduction to prevent work roll leaks.
The rotary seal structure that is used for work roll that its technical problem that solves the utility model adopts, comprise the work roll that is installed in the two end axles bearing, in the work roll body of roll, be provided with cavity, at work roll axle journal end face internals be installed, part outside on bearing cover, being equipped with; Described internals comprise the end cap that is installed in work roll axle journal end face, are welded with interior pipe on the end cap, and interior pipe is inserted in the cavity of the work roll body of roll, and the opposite side of interior pipe is interior osculum; Described outer part comprise the band that is arranged on the bearing cover the enclosing cover of water channel, enclosing cover is provided with intake pipe and enclosing cover dunnage, enclosing cover is provided with water outlet; One end of the intake pipe of above-mentioned outer part is inserted in the interior pipe of internals; Described end cap is provided with the water channel of crossing of above-mentioned cavity of UNICOM and above-mentioned inner chamber.
As a kind of improvement of the present utility model, gapped between the outer wall of tubular portion and the described inner tube wall in intake pipe inserts.
As another kind of improvement the of the present utility model, the length in the interior pipe of the intake pipe insertion internals of above-mentioned outer part surpasses the length of work roll axle journal.
As another improvement of the present utility model, the position of the interior osculum on the described interior pipe is near the bottom of work roll body of roll hollow cavity.
Described outer part and internals are installed on the non-back flow side axle journal of work roll.
Adopt swivel joint of the present utility model, can avoid the leakage of cooling water to cause infringement and influence to other equipment and electric components, the generation of minimizing accident is enhanced productivity.Owing to do not have sealing between intake pipe and interior pipe thereby do not have wearing and tearing, greatly prolonged working life.
Description of drawings
Fig. 1 is that swivel joint is installed in the structural representation on the straightening machine;
Fig. 2 is the structural representation of internals;
Fig. 3 is the structural representation of outer part.
Mark among the figure: 1-enclosing cover, 2-water outlet, 3-internals end cap, 4-end bracket enclosed, the 5-bearing support, 6-bearing cover, 7-enclosing cover dunnage, the 8-water passage hole, the 9-work roll body of roll, 10-cavity, pipe in the 11-, osculum in the 12-, 13-intake pipe, the outer part sealing of 14-, 15-crosses water channel, the 16-inner chamber, the 17-water intake, 18-back flow side axle journal, the non-back flow side axle journal of 19-.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, the two ends axle journal of work roll is installed in the bearing support 5, and wherein an end is a back flow side axle journal 18, and the other end is non-back flow side axle journal 19.In the work roll body of roll 9, be provided with cavity, on the end face of work roll axle journal, internals are installed, part outside on the bearing cover 6 of the bearing support 5 of homonymy, being equipped with, because back flow side axle journal 18 is equipped with transmission part, so optimal selection is the end that above-mentioned internals and outer part are installed in non-back flow side axle journal 19.
Internals comprise the end cap 3 that is installed in work roll axle journal end face as shown in Figure 2, and the interior pipe 11 on the end cap 3 is inserted in the cavity 10 of the work roll body of roll, and cavity 10 UNICOMs of the other end of interior pipe 11 and the work roll body of roll are as interior osculum 12.
Outer part comprises the enclosing cover 1 of the band inner chamber 16 that is installed on the bearing cover 6 as shown in Figure 3, and enclosing cover 1 is provided with intake pipe 13, also is provided with water outlet 2 on the enclosing cover 1.
One end of the intake pipe 13 of outer part is inserted in the interior pipe 11 of internals, and end cap 3 is provided with the water channel 15 excessively of UNICOM's cavity 10 and above-mentioned inner chamber 16.
In intake pipe 13 inserts the outer wall of pipe 11 parts and described in manage between 11 inwalls gapped, and the gap is as far as possible little, but mutual noninterference when rotating is as the criterion with intake pipe 13 and interior pipe 11, owing to do not produce wearing and tearing, thus improved greatly the working life of swivel joint.
In the work roll working procedure, internals are rotated with the work roll body of roll 9, and outer part is installed on the bearing cover 6, does not rotate.Because the gap between intake pipe 13 and the interior pipe 11 is very little, cooling water flow resistance betwixt is big, and can form the local compression that is higher than other positions of passage.Therefore, after the water intake 17 of cooling water intake pipe 13 from the enclosing cover 1 flows into, flow to the low direction of pressure selecting, promptly enter in the interior pipe 11 of internals, and enter the cavity 10 of the work roll body of roll 9, enter in the inner chamber 16 of outer part through the water channel 15 of crossing on the internals at last from the interior osculum 12 of interior pipe 11, discharge from water outlet 2, arrive the work roll body of roll 9 cooling purpose.Even have a spot of cooling water from internals and outside gap location between the part flow out, can not exert an influence to external equipment yet.
In order to reduce and to prevent that cooling water from can adopt following structure from the gap location outflow.One increases intake pressure, and the length in the interior pipe 11 of the intake pipe 13 insertion internals of outer part surpasses the length of work roll axle journal, but because long will increasing processed and installation difficulty, therefore is advisable in right amount.They are two years old, cooling water is crossed arbitrary section area the water channel much larger than the section area of intake pipe 13 from exporting to of described intake pipe 13 between the water outlet 2 on the enclosing cover 1, the pressure that is cooling water when intake pipe 13 flows out greater than at interior pipe 11, interior osculum 12, cavity 10, cross the pressure of water channel 15, much smaller than internals and outside the pressure of gap location between the part, therefore very smooth and easy from flowing of cavity 10 flow pass, satisfy cooling requirement to work roll.
The bottom of the cavity of the close as much as possible work roll body of roll 9 in the position of the interior osculum 12 on the interior pipe 11 is improved mobile distance and the cooling effect of cooling water in cavity 10 like this.
Be provided with enclosing cover dunnage 7 in the inner chamber 16 of enclosing cover 1, be convenient to intake pipe 13 centerings, increase the intensity of enclosing cover 1, prevent its distortion, enclosing cover dunnage 7 is provided with water port 8 simultaneously, guarantees the unimpeded of flow of cooling water passage.
In this structure, also should consider whole sealing, therefore enclosing cover 1 is provided with outer part sealing 14 with the junction surface of bearing cover 6, prevent that cooling water flow from arriving the outside, influence the proper functioning of other components and parts, utilize end bracket enclosed 4 on the bearing cover 6 to prevent to influence the normal use of bearing in the bearing of cooling water flow in the bearing support 5 of inner chamber 16 of outer part simultaneously.
Claims (8)
1. the rotary seal structure that is used for work roll, comprise the work roll that is installed in the two end axles bearing, in the work roll body of roll (9), be provided with cavity, it is characterized in that: in the internals that are equipped with of work roll axle journal end face, part outside on the bearing cover (6) of bearing support (5), being equipped with;
Described internals comprise the end cap (3) that is installed in work roll axle journal end face, and the interior pipe (11) on the end cap (3) is inserted in the cavity (10) of the work roll body of roll, and interior pipe (11) is provided with the interior osculum (12) with cavity (10) UNICOM of the work roll body of roll;
Described outer part comprises the enclosing cover (1) of the band inner chamber (16) that is installed on the bearing cover (6), and enclosing cover (1) is provided with intake pipe (13), and enclosing cover (1) is provided with water outlet (2);
One end of the intake pipe of above-mentioned outer part (13) is inserted in the interior pipe (11) of internals;
Described end cap (3) is provided with the water channel (15) excessively of above-mentioned cavity of UNICOM (10) and above-mentioned inner chamber (16).
2. the rotary seal structure that is used for work roll as claimed in claim 1 is characterized in that: gapped between the outer wall of pipe (11) part and described interior pipe (11) inwall in described intake pipe (13) inserts.
3. the rotary seal structure that is used for work roll as claimed in claim 1 or 2 is characterized in that: the length in the interior pipe (11) of the intake pipe of above-mentioned outer part (13) insertion internals surpasses the length of work roll axle journal.
4. the rotary seal structure that is used for work roll as claimed in claim 3 is characterized in that: the position of the interior osculum (12) in described on the pipe (11) is near the bottom of the cavity of the work roll body of roll (9).
5. the rotary seal structure that is used for work roll as claimed in claim 1 is characterized in that: be provided with enclosing cover dunnage (7) in the inner chamber (16) of described enclosing cover (1), above-mentioned enclosing cover dunnage (7) is provided with water port (8).
6. the rotary seal structure that is used for work roll as claimed in claim 1 is characterized in that: enclosing cover (1) is provided with outer part sealing (14) with the junction surface of bearing cover (6).
7. the rotary seal structure that is used for work roll as claimed in claim 1 is characterized in that: described outer part and internals are installed on the non-back flow side axle journal (19) of work roll.
8. the rotary seal structure that is used for work roll as claimed in claim 1 is characterized in that: cross arbitrary section area the water channel greater than the section area of intake pipe (13) from exporting to of described intake pipe (13) between the water outlet (2) on the enclosing cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203036128U CN201318520Y (en) | 2008-12-23 | 2008-12-23 | Rotary seal structure for work roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203036128U CN201318520Y (en) | 2008-12-23 | 2008-12-23 | Rotary seal structure for work roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318520Y true CN201318520Y (en) | 2009-09-30 |
Family
ID=41197285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203036128U Expired - Lifetime CN201318520Y (en) | 2008-12-23 | 2008-12-23 | Rotary seal structure for work roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318520Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032405A (en) * | 2010-12-10 | 2011-04-27 | 福建三钢闽光股份有限公司 | Water-cooling rotating joint of hot straightener |
| CN102310175A (en) * | 2010-06-30 | 2012-01-11 | 宝山钢铁股份有限公司 | Drive roller of continuous casting machine provided with annular cooling slot |
-
2008
- 2008-12-23 CN CNU2008203036128U patent/CN201318520Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310175A (en) * | 2010-06-30 | 2012-01-11 | 宝山钢铁股份有限公司 | Drive roller of continuous casting machine provided with annular cooling slot |
| CN102310175B (en) * | 2010-06-30 | 2013-06-19 | 宝山钢铁股份有限公司 | Drive roller of continuous casting machine provided with annular cooling slot |
| CN102032405A (en) * | 2010-12-10 | 2011-04-27 | 福建三钢闽光股份有限公司 | Water-cooling rotating joint of hot straightener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |