CN103350114B - Track shoes roll diapsid and milling method - Google Patents
Track shoes roll diapsid and milling method Download PDFInfo
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- CN103350114B CN103350114B CN201310306720.6A CN201310306720A CN103350114B CN 103350114 B CN103350114 B CN 103350114B CN 201310306720 A CN201310306720 A CN 201310306720A CN 103350114 B CN103350114 B CN 103350114B
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Abstract
The invention discloses a kind of track shoes roll diapsid and milling method, this diapsid is formed by the top roll of finishing mill and the groove of lower roll, and this diapsid is a pair track shoes pass be communicated with along axis AA symmetry and through join domain.Described axis AA is vertical with the horizontal center line BB of described diapsid.This milling method is that the production line consisted of roughing mills and mm finishing mill unit is rolled, and each finishing mill in described mm finishing mill unit has the roll of above-mentioned track shoes roll diapsid.Adopt this track shoes roll diapsid to be rolled and can improve mill speed i.e. hour output of steel, reduce production cost, can rolling stability be improved, improve yield rate.
Description
Technical field
The present invention relates to deformed steel rolling field in rolling of sectional iron, be specifically related to a kind of track shoes roll diapsid and milling method, be a kind of brand-new pass exploitation and milling method, it improves deformed steel hour output of steel and rolling stability, reduces production cost.
Background technology
Track shoes is mainly for the manufacture of bull-dozer, tractor caterpillar, that typical special-shaped difficulty rolls kind, due to the asymmetry of section, metal differs greatly in the distribution of section each several part, the inhomogeneous deformation that reflection shows as operation of rolling steel is in process of production serious, roll rear steel cooling flexibility large, thus cause the profile of product and dimensional accuracy to be difficult to ensure, production development difficulty is large.
For current steel production enterprise, crawler belt steel is one of its product with high benefit.General track shoes mainly adopts following production line to produce, and comprises roughing mills and mm finishing mill unit, carries out the reciprocal rolling of cogging by the roughing mills of R1 roughing → crop → R2 roughing to steel billet; Rolled piece enters mm finishing mill unit subsequently, between U1-U2-U3, carry out single pass formation rolling; With after carry out crop, segmentation through hot saw, cold saw carries out collecting warehouse-in after scale sawing.The roll pass producing the finishing mill of track shoes is single track shoes pass, low and the single track shoes pass of track shoes hour output of steel causes rolling stability poor, yield rate is low, be only 80%, the wilderness demand in market cannot be met, therefore need to improve production line to improve hour output of steel, and improve rolling stability, increase yield rate.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of track shoes roll diapsid is provided.This diapsid can improve mill speed i.e. hour output of steel, reduces production cost.
Another object of the present invention is to provide a kind of method adopting above-mentioned roll diapsid rolling track shoes, this milling method can improve rolling stability, improves yield rate.
To achieve these goals, present invention employs following technical scheme:
A kind of track shoes roll diapsid, is formed by the top roll of finishing mill and the groove of lower roll, and this diapsid is a pair track shoes pass be communicated with along axis AA symmetry and through join domain.Described axis AA is vertical with the horizontal center line BB of described diapsid.
Roll pass due to existing finishing mill is single track shoes pass, track shoes hour output of steel is low, so the present invention is on the basis of existing equipment, by referring to existing " crawler belt " Pass parameter, adopt symmetrical turning, getting on the bus at new roll cuts out along axis AA symmetry and a pair track shoes pass that be symmetrical and that be communicated with.Within such hour, output of steel can be doubled.
In described track shoes roll diapsid, as a kind of preferred embodiment, the length of described join domain is 250-280mm, is highly 80-85mm, is convenient to secondary machine like this.More preferably, the length of described join domain is 250mm, is highly 80mm.
In described track shoes roll diapsid, a pair track shoes pass can be communicated with in any position of vertical direction by described join domain, that is, described join domain can be positioned at the top of the horizontal center line BB of described diapsid, below or cover the horizontal center line BB of described diapsid, as a kind of preferred embodiment, the horizontal center line BB of described diapsid passes through described join domain central point, and crossing with described axis AA in described central spot.That is, described join domain covers the horizontal center line BB of described diapsid just.
In described track shoes roll diapsid, as a kind of preferred embodiment, the part corresponding with the free end of the non-guide plate of the track shoes of rolling in described a pair track shoes pass links together by described join domain.
A kind of milling method of track shoes, its production line consisted of roughing mills and mm finishing mill unit is rolled, each finishing mill in described mm finishing mill unit has the roll (hereinafter referred to as symmetrical pass) of above-mentioned track shoes diapsid, and this milling method comprises following operating procedure:
Step one, utilizes roughing mills to carry out R1 roughing → crop → R2 roughing rolling, to roll out the rolled piece entered needed for mm finishing mill unit to blank;
Step 2, utilizes U1-E1-U2-E2-U3 milling train to carry out finish rolling to obtain a pair track shoes (i.e. symmetrical pass mill product) connected as one to described rolled piece successively;
Step 3, carries out sawing, planing and turnery processing to the intermediate connection zones of a pair track shoes connected as one, to be separated and to obtain finished product track shoes by a pair that connects as one track shoes.
In order to make the roughing mill in roughing mills adapt with the finishing mill with above-mentioned roll pass, the roll of roughing mill also needs symmetrical turning pass, namely according to existing size symmetrical pass of turning on new roll, to roll out the rolled piece needed for mm finishing mill unit.
Because the finishing mill used in this milling method has the roll of above-mentioned pass and symmetrical pass, compared with single-orifice type milling method, overcome because of in deformed steel rolling, stress is asymmetric, shape asymmetric cause rolled piece distortion, size distortion problem, the inclined head of the rolled piece caused because roll-force is uneven and nose phenomenon, overcome the problem of the transport instability that rolled piece causes because profile is asymmetric when roller transport, diapsid rolling simultaneously can improve the rolling stability of rolled piece in tandem mill region simultaneously.
The present invention compared with prior art, has following beneficial effect:
The present invention is according to section steel works Minifab rolling mill design ability, on the basis of existing equipment, devise diapsid (i.e. symmetrical pass), adopt the method that symmetrical pass is rolled, improve mill speed, original production line hour output of steel is 35-40t, and after adopting roll diapsid of the present invention, hour output of steel is 75-80t; And due to symmetrical configuration, rolling stability is improved, and yield rate adds 10-12%, makes the rolling of track shoes accomplish the mass production of maximum-norm, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the symmetrical pass mill product cross sectional view adopting symmetrical pass roll of the present invention to be rolled;
Fig. 2 is the schematic diagram of the symmetry rolling pass (i.e. diapsid) that the groove of milling train top and bottom rolls of the present invention is formed.
Wherein, description of reference numerals is as follows: 1-1# tooth, 2-2# tooth, 3-3# tooth, the non-guide plate of 4-, 5-guided plate
Detailed description of the invention
Below by detailed description of the invention, content of the present invention and technical characteristic are described in detail, but the present invention is not limited to this.
See Fig. 2, a kind of track shoes roll diapsid, (namely being formed by the top roll of finishing mill and the groove of lower roll) is put together by the top roll of finishing mill and lower roll, this diapsid is a pair track shoes pass be communicated with along axis AA symmetry and through join domain, described axis AA is vertical with the horizontal center line BB of described diapsid and intersect at the central point of described join domain, that is, the horizontal center line BB of described diapsid is crossing with described axis AA in described central spot by described join domain central point (i.e. join domain be positioned at the part of the horizontal center line BB both sides of described diapsid symmetrical up and down along the horizontal center line BB of described diapsid), it is not only beneficial to secondary operations, and be beneficial to rolled piece and evenly extend, the part corresponding with the free end of the non-guide plate of the track shoes of rolling in described a pair track shoes pass links together by described join domain, like this can the center of gravity of rolled piece in better controlled rolling process, thus avoids inclined head and the nose of rolled piece.
Single track shoes pass is existing track shoes pass, and its track shoes rolled out has all size, such as excavator 190 crawler belt steel, bull-dozer 203,216,228 pitch crawler belt steel etc.The structure of finished product track shoes of the present invention is described for 190 crawler belt steel in other words for the crawler belt steel of three teeth below: comprise guided plate 5, the non-guide plate 4 extended by guided plate 5 one end, the 2# tooth 2 extended upward by the 3# tooth 3 extended upward in the middle part of guided plate 5, the end that connected with non-guide plate 4 by guided plate 5, by the 1# tooth 1 extended upward in the middle part of non-guide plate 4, see Fig. 1; Track shoes roll diapsid of the present invention is communicated with by join domain by above-mentioned single track shoes pass.
For the ease of secondary operations, the length of described join domain length and horizontal direction is preferably 250-280mm, and the height of height h and vertical direction is 80-85mm.More preferably length is 250mm, and height h is 80mm.The roll with diapsid of the present invention adopts the mode of symmetrical turning to get on the bus at new roll to cut out a pair symmetrical pass.
Illustrate milling method of the present invention below.
Embodiment
The top and bottom rolls of each frame finishing mill all has symmetrical pass of the present invention;
In order to make roughing mills adapt with the finishing mill with above-mentioned symmetrical pass, the roll pass on roughing mill is also symmetrically arranged.
Milling method is as follows:
Step one, utilizes roughing mills R1 roughing → crop → R2 roughing to carry out reciprocal split rolling method to blank, to roll out the rolled piece entered needed for mm finishing mill unit.
Step 2, U1-E1-U2-E2-U3 milling train is utilized to carry out single pass formation rolling to obtain a pair track shoes (i.e. symmetrical pass mill product) connected as one to described rolled piece successively, see Fig. 1, it secondary operations region comprising a pair symmetrical track shoes and connect this pair track shoes.
Step 3, carries out sawing, planing and turnery processing to the intermediate connection zones of a pair track shoes connected as one, to be separated and to obtain finished product track shoes by a pair that connects as one track shoes.
Comparative example
The finished product track shoes size of rolling is identical with embodiment.
The top and bottom rolls pass of each finishing mill is mono-track Pass, and the roll pass of each roughing mill adapts with it, and milling method is:
Step one, utilizes roughing mills R1 roughing → crop → R2 roughing to carry out reciprocal split rolling method to blank, to roll out the rolled piece entered needed for mm finishing mill unit.
Step 2, utilizes U1-E1-U2-E2-U3 milling train to carry out single pass formation rolling to described rolled piece successively, obtains finished product track shoes.
The milling method hour output of steel of this comparative example is about 38t, and hour output of steel of the milling method of embodiment is about 76t, and rolling stability is improved, the milling method of the embodiment of the present invention is compared with the milling method of comparative example, and yield rate adds about 11%.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the present invention limit the scope of the invention.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various change, amendment and/or modification to the present invention, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (4)
1. a track shoes roll diapsid, it is characterized in that, formed by the top roll of finishing mill and the groove of lower roll, this diapsid is a pair track shoes pass be communicated with along axis AA symmetry and through join domain, and described axis AA is vertical with the horizontal center line BB of described diapsid; The horizontal center line BB of described diapsid passes through described join domain central point, and crossing with described axis AA in described central spot; Part corresponding with the free end of the non-guide plate of the track shoes of rolling in track shoes pass described in a pair links together by described join domain.
2. track shoes roll diapsid according to claim 1, is characterized in that, the length of described join domain is 250-280mm, is highly 80-85mm.
3. track shoes roll diapsid according to claim 2, is characterized in that, the length of described join domain is 250mm, is highly 80mm.
4. the milling method of a track shoes, it is characterized in that, the production line consisted of roughing mills and mm finishing mill unit is rolled, and each finishing mill in described mm finishing mill unit has the arbitrary roll pass of claim 1-3, and this milling method comprises following operating procedure:
Step one, utilizes roughing mills to carry out R1 roughing → crop → R2 roughing rolling, to roll out the rolled piece entered needed for mm finishing mill unit to blank;
Step 2, utilizes U1-E1-U2-E2-U3 milling train described rolled piece to be rolled to a pair track shoes obtaining connecting as one successively;
Step 3, carries out sawing, planing and turnery processing to the intermediate connection zones of a pair track shoes connected as one, to be separated and to obtain finished product track shoes by a pair that connects as one track shoes.
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| CN201310306720.6A CN103350114B (en) | 2013-07-19 | 2013-07-19 | Track shoes roll diapsid and milling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106734206B (en) * | 2016-12-02 | 2019-08-27 | 山东钢铁股份有限公司 | C-type steel diplopore rolls axial symmetry pass and milling method |
| CN108889775A (en) * | 2018-06-25 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Guard rail U-steel roll mill and milling method |
| CN110142294A (en) * | 2019-05-09 | 2019-08-20 | 山东钢铁股份有限公司 | The milling method and its rolling system of open fashioned iron |
| CN110142293A (en) * | 2019-05-09 | 2019-08-20 | 山东钢铁股份有限公司 | The milling method and its rolling system of open fashioned iron |
| CN115193912A (en) * | 2022-06-20 | 2022-10-18 | 钢客履带(江苏)有限公司 | Single-tooth crawler belt steel with herringbone key holes |
| CN115007641B (en) * | 2022-07-26 | 2023-04-28 | 山东钢铁股份有限公司 | Single-tooth track shoe cogging hole pattern and hot rolling method |
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| JPS5548403A (en) * | 1978-10-04 | 1980-04-07 | Sumitomo Metal Ind Ltd | Manufacture of wide flange beam by flat steel slab |
| EP0340505B1 (en) * | 1988-05-05 | 1994-03-02 | Sms Schloemann-Siemag Aktiengesellschaft | Operating process and roll train for continuously rolling a sectional bar to a finished profile section with given accurate dimensions |
| JP2541328B2 (en) * | 1989-12-15 | 1996-10-09 | 日本鋼管株式会社 | Shaped steel rolling method |
| JP2003211204A (en) * | 2002-01-22 | 2003-07-29 | Jfe Steel Kk | Method for manufacturing ribbed steel plate |
| CN1546247A (en) * | 2003-12-17 | 2004-11-17 | 周燕雄 | Process for rolling large-scale rails into miniature type rails and rollers therefor |
| CN101190442A (en) * | 2006-11-30 | 2008-06-04 | 鞍钢股份有限公司 | Bulb steel production technology |
| JP4544371B2 (en) * | 2008-11-20 | 2010-09-15 | Ｊｆｅスチール株式会社 | T-section steel manufacturing method and rolling equipment line |
| CN201889311U (en) * | 2010-12-15 | 2011-07-06 | 莱芜钢铁股份有限公司 | Rolling device |
| CN103143562A (en) * | 2013-04-03 | 2013-06-12 | 中冶赛迪工程技术股份有限公司 | Technological method for symmetrical paired universal rolling of deformed steel |
| CN203343172U (en) * | 2013-07-19 | 2013-12-18 | 莱芜钢铁集团有限公司 | Crawler steel rolling roll dual-pass |
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