CN2664802Y - Guide device - Google Patents
Guide device Download PDFInfo
- Publication number
- CN2664802Y CN2664802Y CN 03234875 CN03234875U CN2664802Y CN 2664802 Y CN2664802 Y CN 2664802Y CN 03234875 CN03234875 CN 03234875 CN 03234875 U CN03234875 U CN 03234875U CN 2664802 Y CN2664802 Y CN 2664802Y
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- CN
- China
- Prior art keywords
- guide
- guide protection
- rolling
- working surface
- percent
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- Expired - Fee Related
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Abstract
The utility model discloses a rolling workpiece, in particular to a guide protection device for guiding rolling workpiece to enter and exit hole when rolling large-medium rolling workpiece such as rolling steel rail. The guide protection device comprises a guide protection plate, the guide protection plate is provided with a guide protection working surface, the end of the guide protection working surface is provided with at least a free-rotation vertical roller, the axis line of the vertical roller is parallel with the guide protection working surface, moreover the peripheral surface of the vertical roller is protruded from the guide protection working surface. As the end of the guide protection working surface is provided with free-rotation vertical rollers, the contact friction means between the rolling workpiece and the guide protection plate is changed radically, i.e. the sliding friction is changed to the rolling friction, so that the friction of the guide plate is reduced greatly so as to lower the forming of scratch greatly. That a heavy steel rail is rolled on 950/800/850 second-order transversely-arranged four-rack rolling machine as an example, after the above guide protection device is applied, the scratch ratio is declined from 5.16 percent to 0.4 percent, the export qualified ratio is raised from 80.69 percent to 95.97 percent.
Description
Technical field
The utility model relate to a kind of when rolling rolled piece the guide and guards of guiding rolled piece turnover pass during large-scale, the medium-sized section bar of guide and guards, the especially roll out steel rail etc. of guiding rolled piece turnover pass.
Background technology
At present, the section bar rolled piece relies on guide and guards guiding turnover pass when rolling on milling train, the rolled piece under the hot state contacts the phase mutual friction with foreplate under the cold state, the wear extent of foreplate also increases progressively thereupon along with the increase of amount of rolling, thereby forms groove on foreplate.Because the state of rolled piece turnover pass changes at any time, rolled piece is local to be contacted with the seamed edge of groove, causes the scuffing rolled piece, forms cut on the finished product rolled piece.Above situation is especially true when roll out steel rail.In addition, foreplate contact under rolled piece under the hot state and the cold state oxide skin and the top layer metal on the hot state rolled piece surface under the mutual friction scraping mutually easily is bonded on the guide plate surface because of the gummed effect, similar with built-up welding, make the rough sticky object of the local formation of guide plate working face, sticky object scraping rolled piece surface, produce scratch, also make finished product rolled piece surface form cut, influenced the quality and the qualification rate of product.For rail, when especially Chu Kou heavy rail is rolled on four rolling mills that 950/800/850 second order cross-arranging type is arranged, because its technical quality requires rail not allow any defective, in not reaching nearly 20% defective work of export standard, considerable part is owing to above reason causes due to the head cut.Therefore, solve rolled piece surface scratch, especially rail's end portion cut is the striving direction of improving the quality of products, improve the products export qualification rate always.
The utility model content
Especially rail is on milling train when rolling in order to overcome existing section bar rolled piece, and the rolled piece surface contact deficiency of formation cut easily with foreplate, and the utility model provides a kind of section bar rolled piece can reduce the guide and guards of cut formation when rolling greatly on milling train.
The technical scheme that its technical problem that solves the utility model adopts is: guide and guards, comprise foreplate, foreplate is provided with the guide and guard working face, it is characterized in that: the afterbody place of described guide and guard working face is provided with at least one edger roll free to rotate, the axis of described edger roll is parallel with the guide and guard working face, and the outer peripheral face of edger roll protrudes the guide and guard working face.
The beneficial effects of the utility model are, because the afterbody of guide and guard working face is provided with edger roll free to rotate, has fundamentally changed the contact friction mode of rolled piece and foreplate, promptly changes rolling friction into by sliding friction, the friction of guide plate is reduced greatly, thereby reduce cut formation greatly.Be rolled on four rolling mills that 950/800/850 second order cross-arranging type is arranged with heavy rail and be example, use above-mentioned guide and guards after, the cut rate drops to 0.4% by 5.16%, the outlet qualification rate rises to 95.97% by original 80.69%.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the outline drawing of existing guide and guards.
Fig. 2 is the front view of guide and guards of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, guide and guards of the present utility model is on the basis of original foreplate 1, afterbody 3 places at the guide and guard working face 2 of foreplate 1 are provided with at least one edger roll free to rotate 4, and the number of edger roll 4 can increase to arranged side by side a plurality of according to the actual needs.Parallel and outer peripheral face edger roll 4 of the axis of edger roll 4 and guide and guard working face 2 protrudes guide and guard working face 2, and its protrusion amount is advisable with 5～10mm.Because the afterbody 3 of the guide and guard working face 2 on the foreplate 1 is provided with edger roll free to rotate 4, when section bar rolled piece especially rail rolling and when relying on guide and guards guiding turnover pass on milling train, workpiece front end contacts with edger roll 4 outer peripheral faces that protrude guide and guard working face 2, edger roll 4 rotates thereupon, fundamentally changed the contact friction mode of rolled piece and foreplate, promptly change rolling friction into, the friction of guide plate is reduced greatly, thereby reduce the formation of head cut greatly by sliding friction.Also be provided with the cooling tube 5 that communicates with the outer peripheral face of edger roll 4 on the foreplate 1, the cooling fluid in the cooling tube 5 can be a water, also can be other cooling fluid.Cooling fluid in the cooling tube 5 directly is flushed in the rotating shaft of edger roll 4 and on the outer peripheral face, plays cooling and lubricated effect, can also wash away oxide skin and iron filings on edger roll 4 outer peripheral faces simultaneously, the formation of cut is reduced greatly, thereby guaranteed the quality of rolled piece.With heavy rail on four rolling mills that 950/800/850 second order cross-arranging type is arranged, carry out rolling be example, use above-mentioned guide and guards after, the cut rate drops to 0.4% by 5.16%, the outlet qualification rate rises to 95.97% by original 80.69%.
Claims (2)
1, guide and guards, comprise foreplate (1), foreplate (1) is provided with guide and guard working face (2), it is characterized in that: the afterbody (3) of described guide and guard working face (2) locates to be provided with at least one edger roll free to rotate (4), the axis of described edger roll (4) is parallel with guide and guard working face (2), and the outer peripheral face of edger roll (4) protrudes guide and guard working faces (2).
2, guide and guards as claimed in claim 1 is characterized in that: also be provided with the cooling tube (5) that communicates with the outer peripheral face of edger roll (4) on the described foreplate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234875 CN2664802Y (en) | 2003-06-11 | 2003-06-11 | Guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234875 CN2664802Y (en) | 2003-06-11 | 2003-06-11 | Guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664802Y true CN2664802Y (en) | 2004-12-22 |
Family
ID=34326338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234875 Expired - Fee Related CN2664802Y (en) | 2003-06-11 | 2003-06-11 | Guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664802Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414187A (en) * | 2015-12-08 | 2016-03-23 | 安徽宝泰特种材料有限公司 | Roller guide device of two-roller cross rolling piercer |
| CN108889776A (en) * | 2018-06-28 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Steel rail rolling device |
| CN110216155A (en) * | 2019-06-06 | 2019-09-10 | 山东钢铁股份有限公司 | Hot-rolled angle steel outlet rolling guide device |
-
2003
- 2003-06-11 CN CN 03234875 patent/CN2664802Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414187A (en) * | 2015-12-08 | 2016-03-23 | 安徽宝泰特种材料有限公司 | Roller guide device of two-roller cross rolling piercer |
| CN108889776A (en) * | 2018-06-28 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Steel rail rolling device |
| CN110216155A (en) * | 2019-06-06 | 2019-09-10 | 山东钢铁股份有限公司 | Hot-rolled angle steel outlet rolling guide device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20100611 |