CN2836944Y

CN2836944Y - Large-space pore-free rolling mill

Info

Publication number: CN2836944Y
Application number: CN 200520133261
Authority: CN
Inventors: 李子文; 肖国栋; 姜振峰; 刘京华
Original assignee: Xinjiang Bayi Iron and Steel Co Ltd
Current assignee: Xinjiang Bayi Iron and Steel Co Ltd
Priority date: 2005-11-21
Filing date: 2005-11-21
Publication date: 2006-11-15
Anticipated expiration: 2015-11-21

Abstract

The utility model discloses a large-space pore-free rolling mill, which comprises a roller a guiding and guarding device of an inlet, which is arranged on the side face of a working position of a rolling blank of the roller, wherein the roller face of the roller is a smooth and continuous cylindrical face; the guiding and guarding device of the inlet comprises two guiding plates which are correspondingly arranged at intervals; a steel billet channel is formed between the two guiding plates; an abrasion-proof block is arranged on the inner wall of each of the two guiding plates which are adjacent to the working position of the roller; the positions of the two abrasion-proof blocks are mutually symmetrical. The utility model has the advantages of wide ranges of the specifications of rolled blanks, long service life of the roller, and repeatable use of the roller; besides, the utility model is favorable for reducing the storage amounts of the roller and the production cost of enterprises is lowered.

Description

Big spacing anapsid milling train

Technical field

The utility model belongs to the improvement of steel rolling mill with rolling mill structure, particularly big spacing anapsid milling train.

Background technology

At present, the steel rolling mill of each iron and steel enterprise is also generally using the pass milling train, on the roll roll surface of pass milling train several annular grooves is being set all, in order to the blank of rolling certain specification.Because the shape and the size of annular groove are comparatively fixing, make the pass milling train can be rolling the blank specification also comparatively fixing, as wanting the blank of rolling different size, just must change corresponding roll, cause the manufacturing enterprise must the standing spare roll that a large amount of different sizes are arranged, could satisfy production requirement, this has increased the production cost of enterprise greatly.In addition, owing on the roll surface of roll, be carved with groove, the hardness of the groove walls often hardness not as roll surface is big, the groove that causes roll with process that blank contacts in very easily wearing and tearing, not only greatly reduce the service life of roll, and roll can not reuse again, causes the production equipment significant wastage.

The utility model content

The purpose of this utility model is to provide a kind of big spacing anapsid milling train, and blank specification limit that not only can be rolling is wide, the long service life of roll, and roll is reusable, and helps reducing the storage level of roll, reduces the production cost of enterprise.

The purpose of this utility model is achieved in that a kind of big spacing anapsid milling train, comprises roll and the inlet guide and guards that is provided with in the side, working position of the rolling blank of roll, and the roll surface of roll is the smooth and continuous face of cylinder; The inlet guide and guards comprises the foreplate that two relative spacings are arranged, constitutes the steel billet passage between two foreplates, near on the two foreplate inwalls of roll working position wear-resistant block is being set respectively, and the position of two wear-resistant blocks is symmetrical.

During the utility model work, steel billet enters between the roll by the steel billet passage between inlet guide and guards two foreplates and is rolled, and steel billet contacts with wear-resistant block, prevents from foreplate is caused wearing and tearing.Because the roll surface hardness of roll is far longer than the hardness of roll inside, and the roll surface of the utility model roll is the smooth and continuous face of cylinder, on the roll surface without any groove, so not only the wearability of roll improves greatly, and blank specification limit that can be rolling is wide, and no longer is subject to the size of concave roll annular groove.With rolling bar of the utility model anapsid roll and shaped steel product, can make the stressed simplification of rolled piece, distortion evenly improves its surface quality.Only need change the cross dimensions that roll gap just can be adjusted rolled piece when rolling, thereby the adaptability of rolling blank is extremely strong, the spacing of milling train can reach 1.5 meters to more than 20 meters.After roll surface produces certain wearing and tearing, only need be roll surface car again is smooth promptly reusable with lathe, thus not only can prolong the service life of roll greatly, and help reducing the storage level of roll, reduce the production cost of enterprise.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the main TV structure schematic diagram of the utility model embodiment 1;

Fig. 2 is the left TV structure schematic diagram of Fig. 1;

Fig. 3 is the main TV structure schematic diagram of the utility model embodiment 2;

Fig. 4 is the plan structure schematic diagram of Fig. 3.

The specific embodiment

A kind of big spacing anapsid milling train, as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise

roll

4,6 and the inlet guide and guards that is provided with in the side, working position of

roll

4,6 rolling blanks,

roll

4,6 opposite sides relative with the inlet guide and guards are being provided with outlet guide device 5.The inlet guide and guards is installed on the guide and guard beam by the foundary weight piece 1 that has dovetail groove.The roll surface of

roll

4,6 is the smooth and continuous face of cylinder, the not cutting of roll surface of roll like this, and the rigidity layer of roll roll surface is fully utilized, and the wearability of roll improves, and wear extent is little, generally can improve roll 3-6 in service life doubly.In addition, change drafts, can realize the needs of rolling different size blank, reduce the deposit amount of storage of roll significantly, reduce enterprise's production cost because roll type not with holes, only needs to adjust roll gap for the blank of different size.The inlet guide and guards comprises the foreplate 2 that two relative spacings are arranged, constitute the steel billet passage between two foreplates 2, symmetrical near the position that wear-resistant block 3, two wear-resistant blocks 3 are being set respectively on two foreplates, 2 inwalls of

roll

4,6 working positions, wear-resistant block 3 is made of antifriction alloy.As shown in Figure 3, Figure 4, on wear-resistant block 3 rears, two foreplates 2 away from

roll

4,6 working positions deflector roll 7 is being set vertically respectively, the steel billet feeder connection place of inlet guide and guards is being provided with steel billet guide plate 8.The thickness of two foreplates 2 is 40～60mm, inclines askew in order to control rolled piece effectively.

On probation through producing, the operating rate of the utility model milling train increases substantially, because the groove wearability improves, changing groove roll change number of times significantly reduces, the different size blank can be shared in addition, big roll change number of times can be reduced to bottom line, when grooveless rolling can avoid type roll with holes rolling simultaneously because groove and guide and guard misalign caused fault.Integrate, can improve operating rate of rolling mill 6% to 8%.Along with the raising of operating rate of rolling mill, it is about 5% that the fuel consumption during heating reduces, because the energy consumption of the reduction of deformation drag when rolling reduces by 7% approximately.Because the grooveless rolling cross force is evenly distributed, and astable deformed area is narrower, so the minimizing of workpiece front end afterbody defective, lumber recovery about 0.4% can be improved.The utility model Roller Machining is simple, and the turning amount is few, can reduce the outfit of roller machine tool and cutter, reduces maintenance and rolling cost.Use the utility model milling train can also eliminate iron scale effectively, improve the rolled piece surface quality, the investment in fixed assets that can save the iron scale scavenge unit.In addition, the groove of milling train top roll and lower roll misaligns in the time of can also eliminating conventional groove rolling, and the inlet guide and guard misalign with groove, the list two-sided " ears or side handles of a utensil " that the rolled piece non-uniform temperature occurs and in mass defects such as folding of producing of follow-up passage.

Claims

1, a kind of big spacing anapsid milling train comprises roll (4,6) and the inlet guide and guards that is provided with in the side, working position of the rolling blank of roll (4,6), and it is characterized in that: the roll surface of roll (4,6) is the smooth and continuous face of cylinder; The inlet guide and guards comprises the foreplate (2) that two relative spacings are arranged, constitute the steel billet passage between two foreplates (2), near on two foreplates (2) inwall of roll (4,6) working position wear-resistant block (3) is being set respectively, the position of two wear-resistant blocks (3) is symmetrical.

2, big spacing anapsid milling train according to claim 1, it is characterized in that: on wear-resistant block (3) rear, two foreplates (2) away from roll (4,6) working position deflector roll (7) is being set vertically respectively, the steel billet feeder connection place of inlet guide and guards is being provided with steel billet guide plate (8).

3, big spacing anapsid milling train according to claim 1 and 2, it is characterized in that: the thickness of two foreplates (2) is 40～60mm.