CN203459400U - Wear-resistance work roller for stretching bending straightening machine - Google Patents
Wear-resistance work roller for stretching bending straightening machine Download PDFInfo
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- CN203459400U CN203459400U CN201320541822.1U CN201320541822U CN203459400U CN 203459400 U CN203459400 U CN 203459400U CN 201320541822 U CN201320541822 U CN 201320541822U CN 203459400 U CN203459400 U CN 203459400U
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- work roller
- working roll
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Abstract
The utility model provides a wear-resistance work roller for a stretching bending straightening machine. The work roller is structurally in a section combined type and comprises three sections including two-end easy-to-abrade part sections and a middle part section, the end part of one end of the two-end easy-to-abrade part sections is provided with a bearing, the end part of the other end of the two-end easy-to-abrade part sections is provided with an external threaded connecting part, the two ends of the middle part section are provided with internal threaded connecting parts, and the two-end easy-to-abrade part sections and the middle part section are connected into a whole through screw connection. In the scheme, the existing integral work roller is designed into the three-section type structure, the work roller is designed into a three-section structure, different materials can be adopted in different positions, the two ends of the work roller adopt wear resistance materials, the service cycle of the work roller is prolonged, the machine halt roller replacement time is reduced, the operation of the production line is stable, the middle part section is repeatedly utilized, the work roller materials are saved, and the production cost is reduced.
Description
Technical field
The utility model relates to technical field of steel rolling, refers to especially the wear-resisting working roll of a kind of stretching-bending straightener.
Background technology
The stretching-bending straightener using in cold-rolling pickling process, plays mechanical scale breading on the one hand, improves pickling efficiency; On the other hand, improve incoming profile, be not only directly conducive to the raising with steel finished product strip shape quality, and reduce band steel advance and the operation of rolling in there is sideslip and broken belt accident.Thereby the stretching-bending straightener key equipment of taking over from the past and setting a new course for the future as hot rolling, between cold rolling, at high-speed and high-efficiency, eliminate squama and play important effect aspect the improving of plate shape, the realization of the pickling of particularly development in recent years being got up---cold rolling online technology, becomes a crucial factor especially.
In the actual use procedure of stretching-bending straightener, find that the wearing and tearing of working roll two ends are more serious, the main following points of its reason:
(1) the band steel at straightener place is hot-rolled finished product, and in course of hot rolling, the temperature drop of limit portion is larger, yield stress increases, and causes hardness number with steel two ends than broad in the middle, therefore, band is in straightening process, and the tensile stress that limit portion needs is large, and the wearing and tearing on working roll both sides also just increase.
(2) hot rolling temperature drop is large, and strip coiling contacts with air with back portion, easily forms Fe
2o
3, and Fe
2o
3hardness than FeO and Fe
3o
4the hardness of oxide is high, the quick abrasion to working roll.
(3) with the band of limit wave, contact axial play and relative sliding longitudinally with working roll, cause the limit portion of band and working roll to form " cutting " effect, aggravate the wearing and tearing at working roll two ends.
The wearing and tearing of working roll two ends arrive after certain limit, through rolling off the production line measurement, find that the middle longer position of roller does not have wearing and tearing substantially.Because technique needs, have to carry out roll change, if the roller of changing is wanted to continue to use and can only carry out body of roll reparation by technology such as welding or brush platings, yet because body of roll rehabilitation expense is higher, economic performance is bad, the processing mode of generally taking integral body to scrap in actual production, causes the larger wasting of resources.
Utility model content
The technical problems to be solved in the utility model is to provide the wear-resisting working roll of a kind of stretching-bending straightener that economizes on resources, reduces costs.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of stretching-bending straightener wear-resisting working roll, and the structure of described working roll is sectionally assembled, comprises 2 three sections of position easy to wear, two ends section 1, middle part sections;
The end, one end of position easy to wear, described two ends section is provided with bearing 3, and other end end is provided with external screw thread connecting portion 4;
The two ends of described middle part section are provided with internal thread connecting portion 5;
Duan Yu middle part, position easy to wear, described two ends section is threaded connection and is integrated.
Wherein, the end that position easy to wear, described two ends section is provided with one end of bearing is provided with square opening;
The end, outer end of the internal thread connecting portion at section two ends, described middle part is provided with square opening 6.
Wherein, position easy to wear, described two ends section adopts wear-resistant steel material; Middle part section adopts general tool Steel material or wear-resistant steel material.
Wherein, for preventing different parts relative sliding between motion central roll, being spirally connected of position easy to wear, Duan Yu two ends, described middle part section adopted one start screw, is threaded counterclockwise.
The beneficial effect of the utility model embodiment is as follows:
In such scheme, by existing monoblock type working roll is designed to three stage structure, working roll is designed to three-stage structure, different parts can adopt different materials or Technology for Heating Processing; Working roll two ends are adopted to high-abrasive material, extend the life cycle of working roll; Reduce and shut down roll changing time, make production line stable; Middle part section can reuse, and saves working roll material, reduces production costs.
Accompanying drawing explanation
Fig. 1 is the overall structure cutaway view of the wear-resisting working roll of the utility model embodiment stretching-bending straightener;
Fig. 2 is the structural representation of position easy to wear, the two ends section of the wear-resisting working roll of the utility model embodiment stretching-bending straightener;
Fig. 3 is the structural representation of the middle part section of the wear-resisting working roll of the utility model embodiment stretching-bending straightener;
Fig. 4 is the structural representation after the wear-resisting working roller abrasion of the utility model embodiment stretching-bending straightener;
Fig. 5 is the generalized section of the wear-resisting working roll of the utility model embodiment stretching-bending straightener.
Description of reference numerals:
1, position easy to wear, two ends section;
2, middle part section;
3, workroll bearing;
4, external screw thread connecting portion;
5, internal thread connecting portion;
6, interlude end square opening.
The specific embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, embodiment of the present utility model provides a kind of stretching-bending straightener wear-resisting working roll, and the structure of described working roll is sectionally assembled, comprises position easy to wear, two ends section 1, middle part section 2; The end, one end of position easy to wear, described two ends section 1 is provided with bearing 3, and other end end is provided with external screw thread connecting portion 4; The two ends of described middle part section 2 are provided with internal thread connecting portion 5; Position easy to wear, described two ends section 1 connects as one with the threaded of middle part section 2 by external screw thread connecting portion 4 and internal thread connecting portion 5.
The utility model embodiment, owing to adopting three stage structure, takes to be threaded, easy installation and removal; Instant dismounting and change after position easy to wear, two ends section 1 wears up to the limit, and middle part section 2 can be changed by Reusability after changing the limit again, thus avoided the integral body of existing monoblock type working roll to scrap, waste the problem of resource.
As shown in Figure 4, due to stretching-bending straightener working roll in process of production, the wearing and tearing of two ends position easy to wear 1 serious wear and middle part are less or substantially do not wear and tear, therefore, the utility model embodiment, position easy to wear, described two ends section 1 adopts wear-resistant steel material, and middle part section 2 can adopt general tool steel or wear-resistant steel material;
For improving the anti-wear performance of metal material, position easy to wear, two ends section 1 is carried out to surface heat processing, by methods such as carburizing, carbo-nitriding, high frequency quenching, flame hardenings, realize and make rubbing surface produce marquensite hardening of tissue layer; To be hardened to carburizing or the carbo-nitriding of object, select low hardening heat, high frequency quench hardening top layer has larger compression stress remaining, should impose lonneal and eliminate, thereby improve wearability.With nonmetal hardened layer, improve wearability, can adopt boronation to process.
By above processing, realize position easy to wear, two ends section 1 roll surface along the different hardness distribution of axis direction, realize the reenlist life-span, the object reducing production costs.
Further, described middle part section 2 adopts one start screw, is threaded counterclockwise with being threaded of position easy to wear, two ends section 1, contrary with the passive direct of travel in working roll work, to prevent that three sections occur loosening in the course of the work; And reach the standard grade before use in working roll assembling, apply larger pretightning force, to prevent the loosening of syllogic combining structure.
As shown in Figure 5, one end that position easy to wear, described two ends section 1 is provided with bearing is provided with end square opening; As shown in Figure 4, the outer end of the internal thread connecting portion at section 2 two ends, described middle part is provided with end square opening 6, with easy disassembly.
The use procedure of the utility model embodiment working roll is as follows:
(1) machine on working roll: position easy to wear, two ends section 1 and middle part section 2 are combined, form a complete working roll, before reaching the standard grade, it is applied to larger pretightning force, prevent that in use loosening phenomenon appears in work in combination roller, working roll is clamping.
(2) the working roller abrasion stage: along with the carrying out producing, constantly aggravation of working roll two ends wearing and tearing, when working roller abrasion arrives after certain limit, measures respectively the roller footpath of middle part and two-end part, determines the position of changing.
(3) working roll is changed: the utility model adopts the part of only changing serious wear, with instrument, position easy to wear, two ends section 1 is pulled down from middle part section 2, changes position easy to wear, original two ends section 1.By the external screw thread connecting portion 4 of position easy to wear, two ends section 1, aim at the internal thread connecting portion 5 of middle part section 2, screw in counterclockwise, make two sections in junction, to fit tightly together, three sections just form a new working roll after linking together.Because middle part section 2 can be reused, when rolling off the production line measurement, note the roll diameter change of middle part, when middle part section may wear to a certain degree, also to change in time middle part, in order to avoid affect band straightening quality.
In such scheme, by existing monoblock type working roll is designed to three stage structure, different parts can adopt different materials; Working roll two ends are adopted to high-abrasive material or adopt Wear-resistant Treatment technique, the life cycle that extends working roll; Reduce and shut down roll changing time, make production line stable; Middle part section can reuse, and saves working roll material, reduces production costs.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. the wear-resisting working roll of stretching-bending straightener, is characterized in that, the structure of described working roll is sectionally assembled, comprises (2) three sections of position easy to wear, two ends section (1), middle part sections;
The end, one end of position easy to wear, described two ends section is provided with bearing (3), and other end end is provided with external screw thread connecting portion (4);
The two ends of described middle part section are provided with internal thread connecting portion (5);
Duan Yu middle part, position easy to wear, described two ends section connects as one by being spirally connected.
2. the wear-resisting working roll of stretching-bending straightener according to claim 1, is characterized in that, the end that position easy to wear, described two ends section is provided with one end of bearing is provided with square opening;
The end, outer end of the internal thread connecting portion at section two ends, described middle part is provided with square opening (6).
3. the wear-resisting working roll of stretching-bending straightener according to claim 1 and 2, is characterized in that, position easy to wear, described two ends section adopts wear-resistant steel material; Middle part section adopts common material or wear-resistant steel material.
4. the wear-resisting working roll of stretching-bending straightener according to claim 1 and 2, is characterized in that, being spirally connected of position easy to wear, Duan Yu two ends, described middle part section adopts one start screw, is threaded counterclockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541822.1U CN203459400U (en) | 2013-09-02 | 2013-09-02 | Wear-resistance work roller for stretching bending straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320541822.1U CN203459400U (en) | 2013-09-02 | 2013-09-02 | Wear-resistance work roller for stretching bending straightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459400U true CN203459400U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320541822.1U Expired - Fee Related CN203459400U (en) | 2013-09-02 | 2013-09-02 | Wear-resistance work roller for stretching bending straightening machine |
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| CN (1) | CN203459400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226799A (en) * | 2014-09-10 | 2014-12-24 | 苏州奥杰汽车工业有限公司 | Roll bending combined mold |
-
2013
- 2013-09-02 CN CN201320541822.1U patent/CN203459400U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226799A (en) * | 2014-09-10 | 2014-12-24 | 苏州奥杰汽车工业有限公司 | Roll bending combined mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Bing Inventor after: Zhang Liang Inventor after: Guo Ruijuan Inventor after: Fu Guang Inventor after: Shu Jianhua Inventor after: Liu Yujin Inventor before: Chen Bing Inventor before: Guo Ruijuan Inventor before: Shu Jianhua |
|
| CB03 | Change of inventor or designer information | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN BING GUO RUIJUAN SHU JIANHUA TO: CHEN BING ZHANG LIANG GUO RUIJUAN FU GUANG SHU JIANHUA LIU YUJIN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20180902 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |