CN204185532U - A kind of roller shell quenching structure of milling train composite support runner - Google Patents
A kind of roller shell quenching structure of milling train composite support runner Download PDFInfo
- Publication number
- CN204185532U CN204185532U CN201420615165.5U CN201420615165U CN204185532U CN 204185532 U CN204185532 U CN 204185532U CN 201420615165 U CN201420615165 U CN 201420615165U CN 204185532 U CN204185532 U CN 204185532U
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- Prior art keywords
- roller shell
- capping
- milling train
- hardness
- quenching structure
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- Expired - Fee Related
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- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model relates to a kind of roller shell quenching structure of milling train composite support runner, and comprise roller shell, capping and lagging material, heat insulating material filling is full of the inside of roller shell, and the end of roller shell is closed by capping, and capping is fixed on the end of roller shell by installing mechanism.The beneficial effects of the utility model are: relative to existing differential quenching technique, the attainable penetration of hardness of this quenching structure is larger, can exceed about 10%, and uniformity of hardness is better, more energy-conservation, penetration of hardness can be controlled exactly by the time controlling quench cooled.
Description
Technical field
The utility model relates to a kind of roller shell quenching structure of milling train composite support runner.
Background technology
The general large-scale steel ingot forging of existing support roll forms, weight is general all more than tens tons or ton up to a hundred, material is generally 9Cr2Mo, price per ton is more than 10,000, cause the material cost of support roll very high, and this Heavy Back-Up Roll will be forged, need large-scale forging equipment, tooling cost is also very high.
For making the skin of support roll, there is certain hardness, to improve its work-ing life, also need to quench to support roll skin, different temperature heat treatment furnace is usually adopted to carry out differential temperature process to support roll in prior art, make the outer certain thickness metal of support roll be heated rapidly to quenching temperature, obtain different tissues inside and outside workpiece after quench treatment, outside working lining reaches certain hardness, improve wear resistance, and internal layer has certain toughness.Its shortcoming is: uniformity of hardness affects by heating uniformity and water-spraying control homogeneity, and the outer uniformity of hardness of support roll is poor, and penetration of hardness influence factor is many, be difficult to control, and energy consumption is very high.
Utility model content
Technical problem to be solved in the utility model is: the roller shell quenching structure providing a kind of milling train composite support runner, improves outer uniformity of hardness, and penetration of hardness controllability, reduces energy consumption.
The utility model solves the technical scheme that its technical problem adopts: a kind of roller shell quenching structure of milling train composite support runner, comprise roller shell, capping and lagging material, heat insulating material filling is full of the inside of roller shell, the end of roller shell is closed by capping, and capping is fixed on the end of roller shell by installing mechanism.
Further restriction, installing mechanism comprises pull bar and set nut, and the two ends of pull bar have the screw thread supporting with set nut, the two ends of pull bar are each passed through capping, set nut is arranged on the two ends of pull bar respectively, applies pressure to capping, capping is fixed on the end of roller shell by the mode compressed.
Further restriction, lagging material is yellow ground or asbestos.
The beneficial effects of the utility model are: relative to existing differential quenching technique, the attainable penetration of hardness of this quenching structure is larger, can exceed about 10%, and uniformity of hardness is better, more energy-conservation, penetration of hardness can be controlled exactly by the time controlling quench cooled.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structural representation of roller shell quenching structure of the present utility model;
Fig. 2 is the structural representation of support roll of the present utility model;
In figure, 1. roller shell, 2. capping, 3. lagging material, 4. pull bar, 5. set nut, 6. roller core.
Embodiment
A kind of milling train composite support runner, comprise roll shaft and roll body, the roller shell 1 that roll body comprises roller core 6 and is enclosed within outside roller core 6, roller shell 1 is by carrying out cold working after roller shell quenching technology quench treatment, and being sleeved on outside roller core 6 by the mode that interference (hot charging) coordinates, the thickness of roller shell 6 is generally 10% of roll body diameter.
The embodiment of this milling train composite support runner is: the diameter of roll body is 800mm, and the thickness of roller shell 1 is 80mm, and the penetration of hardness of roller shell 1 is 40mm.The material of roller core 6 is 42CrMo, and the material of roller shell 1 is 9Cr2Mo.The cost of material is low for roller core, and toughness is high, is conducive to the cost reducing support roll, improves use properties.
Technology of the present utility model not only can be used for newly making support roll, but also may be used for repairing existing support roll, after existing supporting roller abrasion, and can by car except the mode putting the roller shell after quenching behind certain thickness top layer be repaired.
This roller shell quenching technology, has following processing step:
A. roller shell is assembled into roller shell quenching structure before quenching, this milling train composite support roll sleeve quenching structure comprises roller shell 1, capping 2 and lagging material 3, the inside of full roller shell 1 filled by lagging material 3, and the end of roller shell 1 is closed by capping 2, and capping 2 is fixed on the end of roller shell 1 by installing mechanism.Installing mechanism comprises pull bar 4 and set nut 5, the two ends of pull bar 4 have the screw thread supporting with set nut 5, and the two ends of pull bar 4 are each passed through capping 2, and set nut 5 is arranged on the two ends of pull bar 4 respectively, pressure is applied to capping 2, capping 2 is fixed on the end of roller shell 1 by the mode compressed.Lagging material 3 is yellow ground or asbestos.
Above-mentioned roller shell quenching structure is heated, is heated to quenching temperature;
B. dropped in quenchant by roller shell quenching structure and carry out quench cooled, and regulate the penetration of hardness of roller shell 1 by the time controlling quench cooled, quenchant is selected according to the material of roller shell and the hardness requirement of client;
C. quenching hardness requirement is tempered to.
When quenching, the lagging material 3 of roller shell quenching structure inside is conducive to preventing quenchant from entering the inside of roller shell 1, different tissues is obtained inside and outside roller shell 1 after making quench treatment, outside working lining reaches certain hardness, improve wear resistance, internal layer has certain toughness, avoids roller shell to ftracture.Meanwhile, because outer lowering temperature uniform, make outer field hardness also more even.
Claims (3)
1. the roller shell quenching structure of a milling train composite support runner, its feature: comprise roller shell (1), capping (2) and lagging material (3), the inside of full roller shell (1) filled by described lagging material (3), the end of roller shell (1) is closed by capping (2), and capping (2) is fixed on the end of roller shell (1) by installing mechanism.
2. the roller shell quenching structure of milling train composite support runner according to claim 1, it is characterized in that: described installing mechanism comprises pull bar (4) and set nut (5), the two ends of pull bar (4) have the screw thread supporting with set nut (5), the two ends of pull bar (4) are each passed through capping (2), set nut (5) is arranged on the two ends of pull bar (4) respectively, pressure is applied to capping (2), capping (2) is fixed on the end of roller shell (1) by the mode compressed.
3. the roller shell quenching structure of milling train composite support runner according to claim 1, is characterized in that: described lagging material (3) is yellow ground or asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615165.5U CN204185532U (en) | 2014-10-22 | 2014-10-22 | A kind of roller shell quenching structure of milling train composite support runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420615165.5U CN204185532U (en) | 2014-10-22 | 2014-10-22 | A kind of roller shell quenching structure of milling train composite support runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204185532U true CN204185532U (en) | 2015-03-04 |
Family
ID=52617544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420615165.5U Expired - Fee Related CN204185532U (en) | 2014-10-22 | 2014-10-22 | A kind of roller shell quenching structure of milling train composite support runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204185532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263893A (en) * | 2014-10-22 | 2015-01-07 | 常州泉汇机械制造有限公司 | Composite rolling mill support roll as well as roll shell quenching structure and technology of support roll |
-
2014
- 2014-10-22 CN CN201420615165.5U patent/CN204185532U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263893A (en) * | 2014-10-22 | 2015-01-07 | 常州泉汇机械制造有限公司 | Composite rolling mill support roll as well as roll shell quenching structure and technology of support roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20171022 |