CN102078882A - Bushing type forged steel carrying roller - Google Patents
Bushing type forged steel carrying roller Download PDFInfo
- Publication number
- CN102078882A CN102078882A CN2010105581239A CN201010558123A CN102078882A CN 102078882 A CN102078882 A CN 102078882A CN 2010105581239 A CN2010105581239 A CN 2010105581239A CN 201010558123 A CN201010558123 A CN 201010558123A CN 102078882 A CN102078882 A CN 102078882A
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- China
- Prior art keywords
- roller
- forged steel
- carrying roller
- old
- roller shell
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Abstract
The invention discloses a bushing type forged steel carrying roller. An old carrying roller is machined into a certain size, the neck part of the roller stays the same, steps for preventing axially skipping are machined on the old carrying roller, and a roller sleeve is provided with roller sleeve steps; the radial size of the old carrying roller is in interference fit with the roller sleeve, and the old carrying roller and the roller sleeve are bushed together through thermal insert to be firmly combined into a whole. With a bushing method, scrapped forged steel carrying rollers are regenerated and put into use again, and the performance of the regenerated scrapped forged steel carrying rollers is equal to that of the whole forged steel carrying roller, but the cost is greatly reduced; not only resource waste can be reduced, but also the manufacturing period of the roller is shortened, and the production efficiency is increased; and better environment protection and low carbon are realized in the manufacturing process of the roller.
Description
Technical field
The present invention relates to a kind of edge shell type support roll.
Background technology
Along with stress metal processing milling train develops rapidly to high speed, maximization and automation direction, the Large-scale Forging steel supporting roll plays an important role in Rolling Production, and is therefore high to quality, performance and the life requirements of backing roll.Under the present circumstances, tens tons the Large-scale Forging steel supporting roll of weighing can only be scrapped after effectively quench-hardened case uses, and remaining remaining position weight accounts for 80% of roll gross weight, makes new backing roll again and not only causes very big waste but also consuming time huge.If reuse undoubtedly and will cut the waste after adopting the way of edge cover that the roll of scrapping regenerate, use producer to bring considerable economic to roll, simultaneously also with current the environmental protection and the low-carbon economy policy of promotion match energetically.
Existing process using is processed as convex surface with old roller, and the method that the roller shell endoporus is processed as concave surface prevents axial float.This method not only processing difficulties but also effect is bad.The assembling magnitude of interference of existing technology does not have the strict way of choosing yet simultaneously, and operability is bad.
Summary of the invention
Goal of the invention: the objective of the invention is in order to overcome the deficiency of existing product technology, a kind of edge shell type support roll is provided, the problem that the support roll that solution is scrapped utilizes again.
Technical scheme: in order to solve the problems of the technologies described above, edge shell type support roll provided by the invention comprises old backing roll and roller shell, and old backing roll is provided with the step that prevents axial float, and roller shell is provided with the roller shell step; Old backing roll that processes and roller shell strong bonded are one.
The described step of axial float and the roller shell step of preventing matches.
Roller shell thickness is not less than 120mm.
Beneficial effect: compared with prior art, edge shell type support roll provided by the invention has the following advantages: the way by the edge cover makes the support roll of having scrapped obtain regenerating and coming into operation again, and suitable with whole support roll performance, but cost significantly reduces; Not only can reduce the wasting of resources, and shorten the roll manufacturing cycle, improve production efficiency; The roll manufacture process is environmental protection and low-carbon (LC) more.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, should understand these embodiment and only be used to the present invention is described and be not used in and limit the scope of the invention.
As shown in drawings, edge shell type support roll provided by the invention comprises old backing roll 1 and roller shell 2, and old backing roll 1 is worked into certain size, and the roll neck position maintains the original state, and old backing roll 1 is processed with the step that prevents axial float, and roller shell 2 is provided with the roller shell step; The radial dimension of old backing roll 1 and roller shell 2 adopt interference fit, are nested together through the hot charging edge, and strong bonded is an one.
In manufacturing process,, generally require roller shell 2 thickness to be not less than 120mm according to roll service condition design roller shell 2 specifications.The roller shell material is 9Cr2MO, 9Cr3MO, 70Cr3MO; Depth of hardening zone can be distinguished Da Dao ≧ 20mm, ≧ 30mm He ≧ 35mm.
Old backing roll 1 is processed.Be processed with the step that prevents axial float, prevent that the step of play and roller shell step from matching, radial dimension and roller shell adopt interference fit.The magnitude of interference is calculated as follows: Δ (mm)=(5.8 * 10
-4φ
1-4.22 * 10
-2) ± 0.03, φ 1 unit is mm.
The pair roller cover heats, and heating-up temperature is calculated as follows: T(℃) 〉=(φ
2-φ
1)/13.6 * 10
-6φ
1, Φ 1, Φ 2 units are mm.And heating-up temperature must not surpass the roller shell temperature.
Roll shaft is vertically sling and roller shell is assembled.
Roll temperature to be assembled carries out fine finishining to it after reducing to room temperature.
Edge shell type support roll provided by the invention has the following advantages: the way by the edge cover makes the support roll of having scrapped obtain regenerating and coming into operation again, and suitable with whole support roll performance, but cost significantly reduces; Not only can reduce the wasting of resources, and shorten the roll manufacturing cycle, improve production efficiency; The roll manufacture process is environmental protection and low-carbon (LC) more.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. an edge shell type support roll comprises old backing roll (1) and roller shell (2), and it is characterized in that: old backing roll (1) is provided with the step (3) that prevents axial float, and roller shell (2) is provided with the roller shell step; Old backing roll that processes and roller shell strong bonded are one.
2. edge shell type support roll according to claim 1 is characterized in that: the described step (3) of axial float and the roller shell step of preventing matches.
3. edge shell type support roll according to claim 1 is characterized in that: roller shell (2) thickness is not less than 120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105581239A CN102078882A (en) | 2010-11-25 | 2010-11-25 | Bushing type forged steel carrying roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105581239A CN102078882A (en) | 2010-11-25 | 2010-11-25 | Bushing type forged steel carrying roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102078882A true CN102078882A (en) | 2011-06-01 |
Family
ID=44085190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105581239A Pending CN102078882A (en) | 2010-11-25 | 2010-11-25 | Bushing type forged steel carrying roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102078882A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744554A (en) * | 2012-07-19 | 2012-10-24 | 盐城市成功机械制造有限公司 | Remanufacturing technology of waste rollers in iron and steel industry |
| CN103600208A (en) * | 2013-11-26 | 2014-02-26 | 靖江市华强重工设备制造有限公司 | Method for machining roll shafts of full-automatic melting-free lead ingot granulators |
| CN106181217A (en) * | 2016-07-15 | 2016-12-07 | 江苏科环科技有限公司 | Compression roller and manufacture method thereof for cement industry roll squeezer |
| CN106425275A (en) * | 2016-11-30 | 2017-02-22 | 马鞍山市恒强合金科技有限公司 | Repair method of cold-rolled support roller |
| CN108704941A (en) * | 2018-05-31 | 2018-10-26 | 泰尔重工股份有限公司 | A kind of novel bushing backing roll |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200998733Y (en) * | 2007-01-13 | 2008-01-02 | 燕山大学 | Sleeve-inlaid supporting roller |
| CN201871537U (en) * | 2010-11-25 | 2011-06-22 | 江苏润孚机械轧辊制造有限公司 | Embedding type forged steel supporting roll |
-
2010
- 2010-11-25 CN CN2010105581239A patent/CN102078882A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200998733Y (en) * | 2007-01-13 | 2008-01-02 | 燕山大学 | Sleeve-inlaid supporting roller |
| CN201871537U (en) * | 2010-11-25 | 2011-06-22 | 江苏润孚机械轧辊制造有限公司 | Embedding type forged steel supporting roll |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744554A (en) * | 2012-07-19 | 2012-10-24 | 盐城市成功机械制造有限公司 | Remanufacturing technology of waste rollers in iron and steel industry |
| CN103600208A (en) * | 2013-11-26 | 2014-02-26 | 靖江市华强重工设备制造有限公司 | Method for machining roll shafts of full-automatic melting-free lead ingot granulators |
| CN106181217A (en) * | 2016-07-15 | 2016-12-07 | 江苏科环科技有限公司 | Compression roller and manufacture method thereof for cement industry roll squeezer |
| CN106425275A (en) * | 2016-11-30 | 2017-02-22 | 马鞍山市恒强合金科技有限公司 | Repair method of cold-rolled support roller |
| CN108704941A (en) * | 2018-05-31 | 2018-10-26 | 泰尔重工股份有限公司 | A kind of novel bushing backing roll |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110601 |