CN112756407A - Cooling steering roller - Google Patents
Cooling steering roller Download PDFInfo
- Publication number
- CN112756407A CN112756407A CN202110038572.9A CN202110038572A CN112756407A CN 112756407 A CN112756407 A CN 112756407A CN 202110038572 A CN202110038572 A CN 202110038572A CN 112756407 A CN112756407 A CN 112756407A
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- CN
- China
- Prior art keywords
- water
- pipe
- roller
- mandrel
- double
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/02—Profile, e.g. of plate, hot strip, sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a cooling steering roller, which comprises a mandrel, wherein a roller is sleeved on the mandrel, and an inner hole of the roller is tightly connected with a roller body of the mandrel through interference fit; an annular cavity is formed between the mandrel and the roller, and Z-shaped water tanks for cooling water to flow are distributed in the annular cavity; the cooling water circulation is realized through the cross water inlet pipe and the cross water outlet pipe. The roller has the beneficial effects that the Z-shaped water tank and the water passing pipe are arranged in the roller to form a cooling circulating pipeline, and meanwhile, the double-layer sleeve connected with the water passing pipe is provided with the water inlet and outlet channel and the water inlet and outlet of the corresponding rotary joint to form a circulating cooling mechanism, so that heat transferred to the surface of the roller by the hot steel belt is cooled by the circulating pipeline, and the temperature of the surface of the roller is reduced.
Description
Technical Field
The invention belongs to the technical field of hot rolled steel strip devices, and particularly relates to a cooling steering roller.
Background
In the hot rolling production of steel plates, five or seven finishing mills are usually connected in series to form a rolling mill group, a looper roll is usually arranged between every two finishing mills to adjust the tension of a steel strip passing through the two finishing mills and simultaneously stabilize the steel strip, in the existing hot continuous rolling mill group, a solid steel roll is usually used at the position, and a wear-resistant material is welded on the surface of the roll, but because the temperature of the steel strip at the position is as high as 1300 ℃, the tension is extremely high, the passing speed of the steel strip is low, the contact time with the surface of the roll is long, the surface of the roll is roasted at the position and decarburized seriously, the abrasion is serious, the surface of the roll is often uneven, in order to prevent the steel strip from being scratched, the use requirements are met, the grinding or the replacement is needed every operation for a period of time, the service life is extremely short, the replacement is inconvenient, and the difficult problem.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a cooling steering roller for reducing the temperature of the surface of a roller body and extending the life of the roller body.
The technical scheme adopted by the invention is as follows: a cooling steering roller comprises a mandrel, wherein a roller is sleeved on the mandrel, and an inner hole of the roller is tightly connected with a roller body of the mandrel through interference fit; an annular cavity is formed between the mandrel and the roller, and Z-shaped water tanks for cooling water to flow are distributed in the annular cavity;
the mandrel is also internally provided with a water passing pipe and a double-layer sleeve which is communicated with the water passing pipe, wherein the water passing pipe is axially distributed; one end of the double-layer sleeve penetrating out of the mandrel is connected with a rotary joint which controls water inlet and water outlet;
the inner pipe of the double-layer sleeve is used as a water inlet pipe, the outer pipe is used as a water outlet pipe, the inner pipe of one end of the double-layer sleeve connected with the water passing pipe is closed, and the inner pipe is communicated with the water inlet end of the z-shaped water tank of the annular cavity through the cross water inlet pipe; the water outlet end of the z-shaped water tank is communicated with a water pipe through a cross water outlet pipe;
the number of the Z-shaped water tanks is 4, and the Z-shaped water tanks are uniformly distributed in the annular cavity around the circumferential direction; water inlet and outlet holes corresponding to the Z-shaped water channels 13 are respectively arranged at two ends of the roller, and the difference between the water inlet and outlet holes of each group of Z-shaped water channels is 60 degrees;
the water inlet pipe and the water outlet pipe of the double-layer sleeve respectively rotate to correspond to the water inlet and the water outlet of the rotary joint.
The present invention is also characterized in that,
the front end of the mandrel is a fixed end, the rear end of the mandrel is a floating end, and the mandrel is fixed through a floating end bearing seat and a fixed end bearing seat respectively.
The inner pipe of one end of the double-layer sleeve connected with the water passing pipe is closed by a water blocking plug.
The outer surface of the roller is also provided with a surfacing wear-resistant layer.
The floating end bearing seat and the fixed end bearing seat are respectively installed at the two ends of the mandrel through a distance ring and a locking nut.
The inner ring of the rotary joint is provided with a water inlet and internal threads and is communicated with the inner pipe of the double-layer sleeve; the outer ring is a water outlet and is provided with external threads and communicated with the outer pipe of the double-layer sleeve.
The invention has the advantages that the Z-shaped water tank, the water passing pipe and the double-layer sleeve pipe are arranged in the roller to form a cooling circulating pipeline, and meanwhile, the water inlet and outlet channels of the double-layer sleeve pipe connected with the water passing pipe and the water inlet and outlet of the corresponding rotary joint form a circulating cooling mechanism, so that heat transferred to the surface of the roller by a hot steel belt is cooled by the circulating pipeline, thereby reducing the temperature of the surface of the roller, improving the hardness and the wear resistance of the surface of the roller and prolonging the service life of the roller.
Drawings
FIG. 1 is a schematic view of a cooled turning roll according to the present invention;
FIG. 2 is a schematic view of a Z-shaped trough for cooling a turn roll in accordance with the present invention;
FIG. 3 is a cross-sectional view of a cross-shaped water inlet pipe of a cooling turn roll of the present invention.
In the figure, 1, a floating end bearing seat, 2, a mandrel, 3, a roller, 4, a surfacing wear-resistant layer, 5, a fixed end bearing seat, 6, a distance ring, 7, a locking nut, 8, a rotary joint, 9, a double-layer sleeve, 10, a water passing pipe, 11, a cross water inlet pipe, 12, a cross water outlet pipe and 13, a Z-shaped water tank are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
A cooling steering roller is shown in figure 1 and comprises a mandrel 2, a roller 3 is sleeved on the mandrel 2, and an inner hole of the roller 3 is tightly connected with a roller body of the mandrel 2 through interference fit; an annular cavity is formed between the mandrel 2 and the roller 3, and Z-shaped water channels 13 (shown in figure 2) for cooling water to flow through are distributed in the annular cavity;
the mandrel 2 is also internally provided with a water passing pipe 10 which is axially distributed and a double-layer sleeve 9 which is communicated with the water passing pipe 10, and the outer pipe of the double-layer sleeve 9 is communicated with the water passing pipe 10; one end of the double-layer sleeve 9 penetrating out of the core shaft 2 is connected with a rotary joint 8, and the rotary joint 8 controls water inlet and water outlet;
the inner pipe of the double-layer sleeve 9 is used as a water inlet pipe, the outer pipe is used as a water outlet pipe, the inner pipe of one end of the double-layer sleeve 9 connected with a water pipe 10 is closed, and the inner pipe is communicated with the water inlet end of a z-shaped water tank 13 of the annular cavity through a cross water inlet pipe 11; the water outlet end of the z-shaped water tank 13 is communicated with the water passing pipe 10 through a cross-shaped water outlet pipe 12.
As shown in fig. 3, 4Z-shaped water tanks 13 are uniformly distributed in the annular cavity around the circumferential direction; the two ends of the roller 3 are respectively provided with water inlet and outlet holes corresponding to the Z-shaped water channels 13, and the difference between the water inlet and outlet holes between each group of Z-shaped water channels 13 is 60 degrees.
In addition, the number of the Z-shaped water tanks 13 is not limited to 4, the Z-shaped water tanks can be increased according to the actual working condition requirements, and the number of the corresponding water inlet and outlet holes can be increased.
The front end of the mandrel 2 is a fixed end, the rear end of the mandrel 2 is a floating end, and the mandrel 2 is fixed through a floating end bearing seat 1 and a fixed end bearing seat 5 respectively.
The water inlet pipe and the water outlet pipe of the double-layer sleeve 9 respectively rotate to correspond to the water inlet and the water outlet of the rotary joint 8.
The inner pipe of the double-layer sleeve 9 connected with one end of the water pipe 10 is closed by a water blocking plug.
The outer surface of the roller 3 is also provided with a surfacing wear-resistant layer 4.
The floating end bearing seat 1 and the fixed end bearing seat 5 are respectively installed at two ends of the mandrel 2 through a distance ring 6 and a locking nut 7.
The inner ring of the rotary joint 8 is provided with a water inlet and internal threads and is communicated with the inner pipe of the double-layer sleeve 9; the outer ring is a water outlet and is provided with external threads and communicated with the outer pipe of the double-layer sleeve 9.
As shown in fig. 1 and 3, a cooled turning roll,
at the moment, the motor and the water pump are switched on, water flow enters the water inlet pipe of the double-layer sleeve 9 from the water inlet of the rotary joint 8, is transferred into the cross water inlet pipe 11 and flows into the Z-shaped water tank 13, the water flow enters the water passing pipe 10 through the cross water outlet pipe after passing through the Z-shaped water tank 13, and then flows out of the outer pipe of the double-layer sleeve 9 and enters the water pump again through the water outlet of the rotary joint 8, so that the cooling circulation process is finished; meanwhile, the cross water inlet pipe 11 and the cross water outlet pipe 12 are fixed between the mandrel 2 and the roller 3 to form a stable rotating structure in the high-speed running process of the roller 3.
Claims (6)
1. A cooled turning roll characterized by: the roller comprises a mandrel (2), wherein a roller (3) is sleeved on the mandrel (2), and an inner hole of the roller (3) is tightly connected with a roller body of the mandrel (2) through interference fit; an annular cavity is formed between the mandrel (2) and the roller (3), and Z-shaped water tanks (13) for cooling water to flow are distributed in the annular cavity;
the mandrel (2) is also internally provided with water passing pipes (10) which are axially distributed and a double-layer sleeve (9) communicated with the water passing pipes (10), and the outer pipe of the double-layer sleeve (9) is communicated with the water passing pipes (10); one end of the double-layer sleeve (9) penetrating through the mandrel (2) is connected with a rotary joint (8), and the rotary joint (8) controls water inlet and water outlet;
the inner pipe of the double-layer sleeve (9) is used as a water inlet pipe, the outer pipe is used as a water outlet pipe, the double-layer sleeve (9) is connected with the inner pipe seal at one end of the water passing pipe (10), and the inner pipe is communicated with the water inlet end of the z-shaped water tank (13) of the annular cavity through the cross water inlet pipe (11); the water outlet end of the z-shaped water tank (13) is communicated with the water passing pipe (10) through a cross water outlet pipe (12);
the number of the Z-shaped water tanks (13) is 4, and the Z-shaped water tanks are uniformly distributed in the annular cavity around the circumferential direction; water inlet and outlet holes corresponding to the Z-shaped water tanks (13) are respectively arranged at two ends of the roller (3), and the difference between the water inlet and outlet holes of each group of Z-shaped water tanks (13) is 60 degrees;
the water inlet pipe and the water outlet pipe of the double-layer sleeve (9) respectively rotate to correspond to the water inlet and the water outlet of the rotary joint (8).
2. A cooled turning roll according to claim 1, characterized in that: the front end of dabber (2) is the stiff end, and the rear end of dabber (2) is the floating end, dabber (2) are fixed through floating end bearing frame (1) and stiff end bearing frame (5) respectively.
3. A cooled turning roll according to claim 1, characterized in that: the inner pipe of one end of the double-layer sleeve (9) connected with the water passing pipe (10) is closed by adopting a water blocking plug.
4. A cooled turning roll according to claim 1, characterized in that: the outer surface of the roller (3) is also provided with a surfacing wear-resistant layer (4).
5. A cooled turning roll according to claim 1, characterized in that: the floating end bearing seat (1) and the fixed end bearing seat (5) are respectively installed at two ends of the mandrel (2) through a distance ring (6) and a locking nut (7).
6. A cooled turning roll according to claim 1, characterized in that: the inner ring of the rotary joint (8) is provided with a water inlet and internal threads and is communicated with the inner pipe of the double-layer sleeve (9); the outer ring is a water outlet and is provided with external threads and communicated with the outer pipe of the double-layer sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038572.9A CN112756407A (en) | 2021-01-12 | 2021-01-12 | Cooling steering roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038572.9A CN112756407A (en) | 2021-01-12 | 2021-01-12 | Cooling steering roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112756407A true CN112756407A (en) | 2021-05-07 |
Family
ID=75701659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110038572.9A Pending CN112756407A (en) | 2021-01-12 | 2021-01-12 | Cooling steering roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112756407A (en) |
-
2021
- 2021-01-12 CN CN202110038572.9A patent/CN112756407A/en active Pending
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