CN203947139U - Cantilevered roll roller head anti-drop structure - Google Patents
Cantilevered roll roller head anti-drop structure Download PDFInfo
- Publication number
- CN203947139U CN203947139U CN201420298864.1U CN201420298864U CN203947139U CN 203947139 U CN203947139 U CN 203947139U CN 201420298864 U CN201420298864 U CN 201420298864U CN 203947139 U CN203947139 U CN 203947139U
- Authority
- CN
- China
- Prior art keywords
- fixed block
- roller
- roll shaft
- roller head
- drop structure
- 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 - Fee Related
Links
Abstract
Cantilevered roll roller head anti-drop structure, comprises roll shaft, and on roll shaft, cover has a roller, and end face is welded with fixed block outside roller, and described fixed block is set to be made up of fixed block A and fixed block B, and fixed block A and fixed block B inner side are provided with semicircle annular male half coupling; On roll shaft cantilever end cylindrical, be provided with the recessed seam of annular.The utility model is simple and reasonable, has avoided causing the problem of shutdown maintenance because roller head comes off, and significantly save energy, stablizes steel rolling output, cost-saving, increases the benefit.
Description
Technical field
The utility model relates to steel rolling equipment, relates in particular to heater for rolling steel cantilevered roll roller head anti-drop structure.
Background technology
Cantilevered roll is mainly used in bar and high-speed rod steel rolling production-line process furnace, use under the Working environment of high temperature for a long time, the material of cantilevered roll roller and roll shaft is different, the material of roller is Cr25Ni20 and Cr28Ni48W5, roll shaft material is 20CrMo, and Cr25Ni20 is 19.5x10 at the thermal expansivity of 20 ~ 1000 DEG C
-6/ DEG C, Cr28Ni48W5 is 18.2x10 at the thermal expansivity of 20 ~ 1000 DEG C
-6/ DEG C, roll shaft 20CrMo is 13x10 at the thermal expansivity of 20 ~ 1000 DEG C
-6/ DEG C.Fixed form between roller and roll shaft adopts maintenance block welding, when roller at high temperature uses for a long time because the thermal expansivity of various materials is inconsistent, weld seam between fixed block and roll shaft is slowly split, between roller and roll shaft, gap is also increasing, cause roller and roll shaft to fix, thereby cause roller to come off.
Summary of the invention
The purpose of this utility model is to provide cantilevered roll roller head anti-drop structure, and this is simple and reasonable, has avoided causing the problem of shutdown maintenance because roller head comes off, and significantly save energy, stablizes steel rolling output, cost-saving, increases the benefit.
The utility model is achieved in that cantilevered roll roller head anti-drop structure, comprise roll shaft, on roll shaft, cover has roller, outside roller, end face is welded with fixed block, it is characterized in that: described fixed block is set to be made up of fixed block A and fixed block B, fixed block A and fixed block B inner side are provided with semicircle annular male half coupling; On roll shaft cantilever end cylindrical, be provided with the recessed seam of annular.
The utility model is simple and reasonable, has avoided causing the problem of shutdown maintenance because roller head comes off, and significantly save energy, stablizes steel rolling output, cost-saving, increases the benefit.
Brief description of the drawings
Fig. 1 is the structural representation before improving;
Fig. 2 is structural representation of the present utility model;
In figure 1, fixed block, 1-1, fixed block A, 1-2, fixed block B, 2, roll shaft, 3, roller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
With reference to accompanying drawing, cantilevered roll roller head anti-drop structure, comprise roll shaft 2, on roll shaft 2, cover has roller 3, roller 3 outside end faces are welded with fixed block 1, it is characterized in that: described fixed block 1 is set to be made up of fixed block A1-1 and fixed block B1-2, fixed block A1-1 and fixed block B1-2 inner side are provided with semicircle annular male half coupling; On roll shaft 2 cantilever end cylindricals, be provided with the recessed seam of annular.When concrete enforcement, the semicircle annular male half coupling of fixed block A1-1 and fixed block B1-2 is stuck in the recessed seam of annular on roll shaft 2 cylindricals, then the cylindrical of fixed block 1 and roller 3 are welded together.The utility model has thoroughly solved the problem that cantilevered roll roller head comes off laterally, has avoided causing the problem of shutdown maintenance because roller head comes off, and has saved widely the energy, stablize steel rolling output, reduce the energy consumption of steel rolling ton output, saved cost, improved benefit.
Claims (1)
1. cantilevered roll roller head anti-drop structure, comprise roll shaft (2), the upper cover of roll shaft (2) has roller (3), roller (3) outside end face is welded with fixed block (1), it is characterized in that: described fixed block (1) is set to by fixed block A (1-1) and fixed block B(1-2) form fixed block A (1-1) and fixed block B(1-2) inner side is provided with semicircle annular male half coupling; On roll shaft (2) cantilever end cylindrical, be provided with the recessed seam of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298864.1U CN203947139U (en) | 2014-06-06 | 2014-06-06 | Cantilevered roll roller head anti-drop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298864.1U CN203947139U (en) | 2014-06-06 | 2014-06-06 | Cantilevered roll roller head anti-drop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203947139U true CN203947139U (en) | 2014-11-19 |
Family
ID=51889190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298864.1U Expired - Fee Related CN203947139U (en) | 2014-06-06 | 2014-06-06 | Cantilevered roll roller head anti-drop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203947139U (en) |
-
2014
- 2014-06-06 CN CN201420298864.1U patent/CN203947139U/en not_active Expired - Fee Related
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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: 20141119 Termination date: 20180606 |