CN102581012B - Combined two-roller continuous mill - Google Patents

Abstract

The invention relates to a combined two-roller continuous mill, which comprises at least one horizontal rolling assembly (71), at least one vertical rolling assembly (72) and a roll changing mechanism, wherein rolling assembly frames are alternately and continuously attached along a rolling line (A-A) and are arranged on a base 5 in 90 degrees; each rolling assembly (71) comprises a floating frame (11) which is embedded in the rolling assembly frame; two rollers and a roller bearing seat are arranged in the floating frame; a roller gap adjusting mechanism is arranged on an upper roller bearing seat (4) or on an end plate (14) of the floating frame (11) corresponding to a roller bearing seat(65) at the transmission side; and a roller gap centering mechanism which is arranged on a movable top cover (6) is further added. The rolling assembly frames are compactly arranged in a gapless way, when the gap between two rollers is adjusted by the roller gap adjusting mechanism and the roller gap centering mechanism, the gap between the two rollers is automatically centered; and the continuous mill is high in operating rate.

Description

Combined type two roller tandem mills

Technical field

The present invention relates to a kind of two roller tandem mills, particularly can carry out to tubing, bar and section bar the combined type two roller tandem mills of flat, the vertical alternative arrangement of continuous rolling.

Background technology

Existing tandem rolling unit is to be arranged and formed by horizontal mill and vertical mill alternate intervals, and their roll line is on same straight line A-A.In general, the rolling machine frame of described horizontal mill and vertical mill respectively comprises: have the cuboid of cavity, on four rectangular walls of cavity cuboid, have window, form the hollow frame of a cuboid; Two rolls are respectively by parallel being arranged in rolling machine frame cavity of roll chock.It is moving that two horizontal roll bearing blocks of horizontal mill can carry out vertical sliding on rolling machine frame window inwall, and two of vertical mill is erect roll chock and can on rolling machine frame window inwall, be moved horizontally.During rolling, rolled piece is from the input side charging of tandem rolling unit, successively through the roll gap between two rolls of horizontal mill, vertical mill or vertical mill and horizontal mill, the body of roll by two horizontal rolls carries out longitudinally vertical rolling to rolled piece, the body of roll by two setting rolls carries out transverse horizontal rolling to rolled piece, and the rolled piece after rolling is from the outlet side output of tandem rolling unit.

Roll seam guiding mechanism is comprised of hydraulic servo cylinder or electric-motor drive screw-nut body, the roll seam guiding mechanism of horizontal mill is separately positioned on the upper/lower terminal portion of rolling machine frame, the roll seam guiding mechanism of vertical mill is arranged on respectively on the transmission side and fore side of rolling machine frame, and by synchronous interlocking winding machine two rolls with respect to roll line A-A synchronously equidistantly centering move, carry out the gap adjustment of two rolls.Synchronous interlocking mechanism is that displacement transducer or motor, reductor are connected by clutch, synchronizing shaft.

The weak point of existing tandem rolling unit is:

Owing to being alternately and arranging along roll line A-A between the rolling machine frame of horizontal mill and the rolling machine frame of vertical mill, for processing rolled piece obstruction accident, between milling train, need reserved necessary operating space, in addition, because horizontal mill or vertical mill are taked two-way adjustment roll seam, the synchronous interlocking mechanism of two roll seam guiding mechanism has also taken the certain space of bay interval, problems, make can not be arranged together compactly between horizontal mill and vertical mill, each configuration space is 5 meters～6 meters, in the operation of rolling, workpiece front end and afterbody be the rolling simultaneously of not every roll on certain length, workpiece front end or afterbody do not have tension force, only be subject to the compression of roll, and rolled piece between horizontal mill and vertical mill middle part, both be subject to roll compression to be also subject to tension force effect, thereby cause rolled piece to the cross dimensions of afterbody, to reduce not to be definite value from the head, head is larger than intermediate sizes with the size of afterbody, affected product quality.

Because vertical mill rolling machine frame is closed frame, for roll transmission mechanism, be arranged on the situation of roll top, when roll change, specific purpose tool need be reached to roll top and lift roll, then with Special crane, roll be shifted out to milling train, roll changing time is long; Meanwhile, for guaranteeing certain roll change space, the setting position of roll transmission mechanism is very high, has increased again the difficulty of roller replacing operation.

Because roll seam guiding mechanism is for moving respectively two rolls, the relative centering of two rolls moves through displacement transducer or clutch, synchronizing shaft carries out synchronous interlocking, when moving relative to centering and reducing or increase two roll seams, two synchronous equidistant centerings of roll are moved and adjusted control, complicated structure, cost is high.

Due to a bottom that is mounted in rolling machine frame in two roll seam guiding mechanisms of horizontal mill, its hydraulic servo cylinder and fluid line or motor and cable pipeline and feed screw nut are all in the immersion with iron scale and rolling cooling water and washing away, even because iron scale is in the accumulation around of its milling train, the working environment of rolling machine frame bottom is very severe, had a strong impact on the service life of bottom roll clearance adjustment mechanism, overhaul difficult problem very outstanding, cause production operational availability to reduce, maintenance cost increases.

In addition, for horizontal by 45 ° of continuously arranged two roller tandem mills of alternate intervals, each milling train transmission mechanism is all arranged on the bottom of unit, and the unit operation visual field is good.But bottom roll clearance adjustment mechanism and milling train transmission mechanism etc. are underground because being arranged on, there is the problems such as poor working environment, inconvenience maintenance, underground structure complexity.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of little along roll line A-A entire length size, and single roller moves roll gap automatic centering while adjusting roll seam, lumber recovery is high, operating rate is high, reduced investment, repair and maintenance combined type two roller tandem mills easily.

Combined type two roller tandem mills of the present invention, comprise at least one horizontal rolling assembly, at least one vertical rolling assembly, and roll change mechanism, and described horizontal rolling assembly and vertical rolling assembly replace continuous arrangement along roll line A-A and are arranged on base.Wherein:

Described rolling mill base comprises the base plate with at least one groove and at least one platform, be positioned at the horizontal rolling assembly framework of the horizontal rolling assembly of the installation arranging on groove, be positioned on platform the vertical rolling assembly framework that is affixed ground with horizontal rolling assembly framework and is the installed vertical rolling assembly of 90 ° of settings, with the reinforced frame with through hole that is positioned at two rolling assembly frameworks outsides, is fixedly connected with each rolling assembly framework and base plate respectively.

Described horizontal rolling assembly and vertical rolling assembly comprise the floating type frame in the rolling assembly framework that is embedded in rolling mill base separately, and two rolls and roll chock are arranged in floating type frame.The bottom roll bearing block of described horizontal rolling assembly is arranged on the second end plate of floating type frame; The fore side roll chock of described vertical rolling assembly is arranged on the second end plate of floating type frame; The roll seam guiding mechanism of described horizontal rolling assembly and vertical rolling assembly is arranged on the first end plate of floating type frame separately separately; Also increased the roll gap centering body being arranged on movable top cover, described movable top cover is connected with each rolling assembly framework.

Described horizontal rolling assembly framework and vertical rolling assembly framework comprise two " door " font roof beams structure that are oppositely arranged separately, the both sides, upper end of two relative " door " font roof beams structure are provided with the first tie-beam that connects two " door " font roof beams structure, described movable top cover is arranged on two the first tie-beams, four columns of " door " font roof beam structure of described horizontal rolling assembly framework are connected with vertical base plate, and " door " font roof beam structure in two " door " font roof beams structure of described vertical rolling assembly framework lies low on the platform of base plate.

Combined type two roller tandem mills of the present invention, wherein: on the first end plate of described floating type frame, be provided with roll seam guiding mechanism, this roll seam guiding mechanism is the mechanical transmission mechanism that has the fluid pressure type transmission mechanism of displacement transducer or have encoder.Roll gap centering body is installed on the top cover of described floating type frame, and this roll gap centering body has the fluid pressure type transmission mechanism of displacement transducer or has the mechanical transmission mechanism of encoder.

Combined type two roller tandem mills of the present invention, wherein: the fluid pressure type transmission mechanism of described roll seam guiding mechanism, comprise: one or two depresses servo hydraulic cylinder, this is depressed in the first end plate that servo hydraulic cylinder is arranged on described floating type frame, and the end face of its piston rod is resisted against on corresponding roll chock.

Combined type two roller tandem mills of the present invention, wherein: the fluid pressure type transmission mechanism of described roll gap centering body, comprise one or two centering hydraulic cylinder being arranged on described top cover, the shift motion of described centering hydraulic cylinder is to depress 1/2 of servo hydraulic cylinder shift motion, the moving direction of described centering hydraulic cylinder with described in to depress the moving direction of servo hydraulic cylinder contrary; When being a centering hydraulic cylinder, piston rod through top cover by Connection Block with described in depress being connected in series of servo hydraulic cylinder, or piston rod passes top cover and is connected with described floating type frame; When being two centering hydraulic cylinders, piston rod is connected with floating type frame through top cover.

Combined type two roller tandem mills of the present invention, wherein: the mechanical transmission mechanism of described roll gap clearance adjustment mechanism is a set of or two covers are depressed worm-and-wheel gear, every cover is depressed worm-and-wheel gear and is comprised: be arranged on a screw box in the first end plate of described floating type frame, with the depress spiro rod being threaded with screw box, one end of this depress spiro rod leans on corresponding roll chock, the other end is provided with and is depressed worm gear by connecting key, depress worm gear and depress worm engaging, the described worm gear of depressing, depress worm screw is arranged in reduction case together with bearing, reduction case is fixedly connected with floating type frame, describedly depress worm gear and connecting key is fastenedly connected, the keyway of connecting key and depress spiro rod is slidably matched, when being that two covers are while depressing worm-and-wheel gear, in Liang Tao mechanism one depress worm screw by shaft coupling with depress motor and be connected, depress for two and between worm screw, be provided with clutch.

Combined type two roller tandem mills of the present invention, wherein: the mechanical transmission mechanism of described roll gap centering body is a set of or two cover centering worm-and-wheel gears, every cover centering worm-and-wheel gear comprises: be arranged on centering nut and the centering screw rod being connected with centering nut thread in described top cover, on described centering nut, centering worm gear is installed, centering worm gear and centering worm engaging, the shift motion of described centering screw rod is 1/2 of depress spiro rod shift motion, and the moving direction of described centering screw rod is contrary with depress spiro rod moving direction; When being a set of centering worm-and-wheel gear, centering screw rod is connected in series with described reduction case by Connection Block through top cover, or centering screw rod is connected with described floating type frame through top cover; When being two cover centering worm-and-wheel gears, two centering screw rods are connected with described floating type frame through top cover respectively, and two centering worm screws are connected by clutch.

Combined type two roller tandem mills of the present invention, wherein: a side of described centering worm gear has annular boss, have the cannelure matching with the annular boss of centering worm gear on described top cover, the wheel rim place that is positioned at centering worm gear on described top cover 6 is provided with worm gear pressing plate.

Combined type two roller tandem mills of the present invention, wherein: the mechanical transmission mechanism of described roll seam guiding mechanism is a set of or two covers are depressed centering worm-and-wheel gear, every cover is depressed centering worm-and-wheel gear and is comprised: be arranged on a screw box in the first end plate of described floating type frame and be threaded with screw box depress centering screw rod, this one end of depressing centering screw rod leans on corresponding roll chock, the other end is provided with and is depressed worm gear by connecting key, this depresses worm gear and the worm engaging of depressing with encoder, depress worm gear, depress worm screw is arranged in reduction case together with bearing, reduction case is fixedly connected with floating type frame, describedly depress worm gear and connecting key is fastenedly connected, connecting key is slidably matched with the keyway of depressing centering screw rod, when being that two covers are while depressing centering worm-and-wheel gear, two depress in worm screw one by shaft coupling with depress motor and be connected, depress for two and between worm screw, be provided with clutch, or two depressed worm screw and be connected with the motor of depressing separately by shaft coupling respectively, depress for two and between worm screw, be provided with clutch.

Combined type two roller tandem mills of the present invention, wherein: the mechanical transmission mechanism of described roll gap centering body, comprise the centering nut being arranged in described top cover, this centering nut is connected with the centering screw flight of depressing of the mechanical transmission mechanism of described roll seam guiding mechanism, the described pitch of depressing centering screw rod and centering nut thread is to depress 1/2 of pitch between centering screw rod and screw box, described in depress the rotation direction of centering screw rod and screw box screw thread and depress the rotation direction of centering screw rod and centering nut thread identical.

Combined type two roller tandem mills of the present invention, wherein: on described centering nut, initial adjustment worm gear is installed, initial adjustment worm gear and initial adjustment worm engaging, initial adjustment worm screw crosses shaft coupling and is connected with initial adjustment motor.

Combined type two roller tandem mills of the present invention, wherein: a side of described initial adjustment worm gear has annular boss, on described top cover, tool matches with the annular boss of initial adjustment worm gear cannelure, and the wheel rim place that is positioned at initial adjustment worm gear on described top cover is provided with worm gear pressing plate.

Combined type two roller tandem mills of the present invention, wherein: the floating type frame of described vertical rolling assembly is split-type, comprise its cross sectional shape be the unsealed rectangle of a side frame body, be positioned at frame body not sealing part housing cap and for the retaining mechanism of connection frame body and housing cap;

On two relative risers of described frame body, there is window, frame body not the inner face of sealing end two risers there is respectively the keyway equipped with housing cap rectangle contiguous block keyway, its outside has a male half coupling coordinating with housing cap;

Described housing cap has end plate, the rectangle contiguous block matching with the internal orifice of frame body and the inner stopper mutually equipped with the male half coupling of frame body of connection, has the keyway equipped with frame body two riser keyways on the relative two sides of described rectangle contiguous block.

Combined type two roller tandem mills of the present invention, wherein: the keyway shape of described frame body is right angled triangle keyway, the keyway shape of described housing cap is the special-shaped keyway of a right angled triangle and " T " font combination;

Or the keyway of described frame body is divided into three sections at length direction, and the shape of two ends section is identical, be right angled triangle keyway, the keyway of its interlude is holding tank.

Combined type two roller tandem mills of the present invention, wherein: described retaining mechanism comprises: be arranged on feather key in the keyway of housing cap and frame body, control the hydraulic cylinder of this feather key displacement and be arranged on the compression hydraulic cylinder in housing cap outside;

The piston rod of described compression hydraulic cylinder connects end plate through housing cap, is resisted against the end of frame body; The hydraulic cylinder seat of described displacement hydraulic cylinder is arranged on the upper surface of described housing cap rectangle contiguous block, and its piston rod is connected with the upper end of feather key.

Combined type two roller tandem mills of the present invention, wherein: described feather key comprises the joint of cuboid and the guide head of connected " T " font;

Or described feather key is divided into three sections at length direction, and the shape of two ends section is identical, comprise the joint of cuboid and the guide head of connected " T " font, the joint of its interlude be shaped as right angled triangle, guide head is " T " font; The length of two ends section is all less than 1/3 of feather key total length.

Combined type two roller tandem mills of the present invention, wherein: described roll change mechanism comprises horizontal roll roll change mechanism and the vertical rolls roll change mechanism matching with each rolling assembly, they comprise separately: roll change base, be arranged on the bearing block moving track on base plate and roll change base, be placed on the movable support bracket with roller on bearing block moving track, the pull bar being connected with movable support bracket and the roll change hydraulic cylinder being connected with pull bar.

Combined type two roller tandem mills of the present invention, wherein: on described pull bar, be provided with the support guide roller rolling on bearing block moving track.

Combined type two roller tandem mills of the present invention, wherein: the bearing block moving track of described vertical rolls roll change mechanism and one end of movable support bracket are stretched between two horizontally-guided beams of vertical rolling assembly framework, be positioned at the below of the frame body of floating type frame, the end of this inserting end has block, and this block is between transmission side first end plate and transmission side roll chock of frame body.

Combined type two roller tandem mills of the present invention have following characteristics and beneficial effect:

1, tandem mill of the present invention is that horizontal rolling assembly and vertical rolling assembly are alternately arranged on the base of a frame-type, the rolling assembly framework that is positioned at each adjacent horizontal rolling assembly of framework and vertical rolling assembly can be the configuration of 90 ° at each same plane M-M place with being affixed, both reduced tandem mill along roll line A-A entire length size, also reduce the overproof segment length between workpiece front end and afterbody, thereby improved lumber recovery.

2, due to the rolling machine frame of each horizontal rolling assembly and vertical rolling assembly is all designed to floating type frame, and set up roll gap centering body, this roll gap centering body can move floating type frame, floating type frame is moved with together with two rolls in being arranged on floating type frame, therefore only need a roll seam guiding mechanism and the roll gap centering body just can be when carrying out two roll seam adjustment, the automatic centering that completes two roller gaps regulates, and keeps the roll gap center of two rolls constant.Both simplified the structure, reduced investment, improved again operating rate and degree of regulation, and simple to operate, good work environment, thus production cost and maintenance cost reduced.

3, owing to being split-type by the floating type chassis design of vertical rolling assembly, the frame body with riser, consist of with the housing cap with rectangle contiguous block, rectangle contiguous block is realized and is connected or throws off with riser by the feather key of retaining mechanism.When changing roll, first housing cap and frame body are thrown off, then housing cap fore side level from milling train together with two rolls is shifted out, directly carry out roller replacing operation, easy to operate, reduced again the setting height(from bottom) of roll transmission mechanism; When processing stifled steel accident, only need shift out housing cap and fore side roll, manually can directly approach rolled piece place, heap steel ground, thereby for realizing tandem mill of the present invention along the further assurance that provides of roll line A-A entire length size reduction.

4, owing to the feather key of retaining mechanism and keyway being designed to have the combining structure pattern of syllogic, the actual shift motion of feather key is only 1/6 to 1/2 of keyway length, when dismounting housing cap, feather key must not be the movement of moving frame lid full stroke, shortened the shift motion of the hydraulic cylinder piston rod of retaining mechanism, reduced the height of retaining mechanism hydraulic cylinder seat, both easy to operate, reduced again roller replacing operation or processed stifled the attached of steel accident and help the time, and having made roller replacing operation convenient, quick.

5, because the fore side at milling train has also designed special-purpose horizontal roll roll change mechanism and the vertical rolls roll change mechanism matching with each rolling assembly, horizontal roll roll change mechanism can directly shift out two rolls or push horizontal rolling assembly framework from the fore side of milling train, vertical rolls roll change mechanism can implement housing cap together with fore side roll, from the fore side of milling train, to shift out or push vertical rolling assembly framework, flexible and convenient operation together with two rolls or housing cap.

In a word, there are the rolling mill base of frame structure and the combined type of the present invention of floating type frame two roller tandem mills, between horizontal rolling assembly framework and vertical rolling assembly framework, being seamlessly close-coupled arranges, when roll seam guiding mechanism and roll gap centering body carry out two roll seam adjustment, complete the automatic centering of two roller gaps.Equipment is simple, and lumber recovery is high, and operating rate is high, good work environment, and maintenance is convenient.Can be used in continuous rolling rectangle steel, tubing, bar and section bar.

Accompanying drawing explanation

Fig. 1 is combined type two roller tandem mill structural representations of the present invention;

Fig. 2-1st, the rolling mill base structural representation of tandem mill shown in Fig. 1;

Fig. 2-2nd, Fig. 2-1 top view

Fig. 2-3rd, D-D sectional drawing in Fig. 2-1;

Fig. 2-4th, F-F sectional drawing in Fig. 2-1;

Fig. 3 is the structural representation that in Fig. 1, the level of tandem mill of the present invention is rolled first embodiment of assembly and vertical rolling assembly, represents that roll seam guiding mechanism has a hydraulic cylinder for reduction system, and roll gap centering body has two centering hydraulic cylinders;

Fig. 4 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and second embodiment of vertical rolling assembly, represent that roll seam guiding mechanism and roll gap centering body respectively have a hydraulic cylinder for reduction system, two hydraulic cylinders are by Connection Block arranged in series;

Fig. 5 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 3rd embodiment of vertical rolling assembly, represents that roll seam guiding mechanism has two hydraulic cylinder for reduction system, and roll gap centering body has a centering hydraulic cylinder;

Fig. 6 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 4th embodiment of vertical rolling assembly, represent that roll seam guiding mechanism has a set of worm-and-wheel gear of depressing, roll gap centering body has two cover centering worm-and-wheel gears;

Fig. 7 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 5th embodiment of vertical rolling assembly, represent that roll seam guiding mechanism has a set of worm-and-wheel gear of depressing, roll gap centering body has a set of centering worm-and-wheel gear, and two worm-and-wheel gears are by Connection Block arranged in series;

Fig. 8 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 6th embodiment of vertical rolling assembly, represent that roll seam guiding mechanism has two covers and depresses worm-and-wheel gear, roll gap centering body has a set of centering worm-and-wheel gear;

Fig. 9 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 7th embodiment of vertical rolling assembly, represents that roll seam guiding mechanism and roll gap centering body have a set of centering worm-and-wheel gear of depressing;

Figure 10 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 8th embodiment of vertical rolling assembly, represent that roll seam guiding mechanism and roll gap centering body have two covers and depress centering worm-and-wheel gear, two covers are depressed centering worm-and-wheel gear and are had one and depress motor;

Figure 11 is the structural representation of the horizontal rolling assembly of tandem mill of the present invention in Fig. 1 and the 9th embodiment of vertical rolling assembly, represent that roll seam guiding mechanism and roll gap centering body have two covers and depress centering worm-and-wheel gear, two covers are depressed centering worm-and-wheel gear and are had two and depress motor;

Figure 12 is that the floating type frame of the vertical rolling assembly of tandem mill of the present invention in Fig. 1 is split-type structural representation, represents that roll seam guiding mechanism has a hydraulic cylinder for reduction system, and roll gap centering body has two centering hydraulic cylinders;

Figure 13 is O-O sectional drawing in Figure 12;

Figure 14 is H-H sectional drawing in Figure 12;

Figure 15 is the structural representation of feather key shown in Figure 12;

Figure 16 is G-G or E-E sectional drawing in Figure 15;

Figure 17 is P-P sectional drawing in Figure 15;

Figure 18 is K-K section amplification figure in Figure 13, represents that feather key is arranged on the state in frame body and housing cap;

Figure 19 is K-K section amplification figure in Figure 13, represents the state after a feather key extraction part;

Figure 20 is B-B sectional drawing in Fig. 1, represents the roll change mechanism schematic diagram of horizontal rolling assembly;

Figure 21 is C-C sectional drawing in Fig. 1, represents fore side roll and housing cap shift out/immigration state and the first roll change mechanism structural representation of vertical rolling assembly.

Figure 22 is C-C sectional drawing in Fig. 1, represents two rolls, roll chock and housing cap shift out/immigration state and the second roll change mechanism structural representation of vertical rolling assembly;

Wherein: 1 bottom roll bearing block, 2 bottom rolls, 3 topping rolls, 4 topping roll bearing blocks, 5 rolling mill bases, 6 top covers, 7 displacement transducers/encoder, 8 centering hydraulic cylinders, 9 depress servo hydraulic cylinder, 10 roll balance mechanisms, 11 floating type frames, 12 rolled pieces, 13 Connection Blocks, 14 first end plates, 15 second end plates, 16 depress spiro rods, 17 centering screw rods, 18 depress centering screw rod, 19 centering worm gears, 20 centering worm screws, 21 depress worm gear, 22 depress worm screw, 23 screw boxs, 24 connecting keys, 25 worm gear pressing plates, 26 keys, 27 pressing plates, 28 annular boss, 29 centering nuts, 30 baffle plates, 31 bearings, 32 reduction cases, 33 depress motor, 34 shaft couplings, 35 clutches, 36 initial adjustment worm gears, 37 initial adjustment worm screws, 38 centering motor, 39 initial adjustment motor, 40 frame bodies, 41 hydraulic cylinders, 42 feather keys, 42a feather key upper end section, 42b feather key interlude, 42c feather key lower end section, the keyway of 43 frame bodies, the upper end section of 43a frame body keyway, the holding tank of 43b frame body, the lower end section of 43c frame body keyway, 44 housing caps, 45 compress hydraulic cylinder, the keyway of 46 housing caps, 47 connect end plate, the joint of 48 feather keys, the guide head of 49 feather keys, 50 hydraulic cylinder seats, 51 brace summers, the transmission mechanism of 52 vertical rolling assemblies, 53 pull bars, 54 support guide rollers, 55 roll change hydraulic cylinders, 56 roll change bases, 57 rollers, 58 movable support brackets, 59 blocks, 60 spindle alignment mechanisms, 61 horizontal rolling assembly transmission mechanisms, 62 spindle hoisting mechanisms, 63 support guide grooves, 65 transmission side roll chocks, 66 transmission side rolls, 67 fore side rolls, 68 fore side roll chocks,

70 base plates, 71 horizontal rolling assemblies, 72 vertical rolling assemblies, 73 " door " font roof beam structure, 74 vertically-guided beams, 75 first tie-beams, 76 second tie-beams, 77 reinforced frames, 78 horizontally-guided beams, 79 grooves, 80 platforms, 81 bearing block moving tracks.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of combined type two roller tandem mills of the present invention is described further.

Existing level milling train and vertical mill comprise separately: rolling machine frame, be arranged on two rolls that are arranged in parallel in rolling machine frame, roll chock, roll balance mechanism 10, regulate roll seam guiding mechanism and the roll change mechanism of roll seam.For making combined type two roller tandem mills of the present invention reduce to minimum along the entire length size of roll line A-A, combined type two roller tandem mills of the present invention are that the horizontal mill of prior art and vertical mill are alternately arranged on the base of same tower structure, form a tandem mill of combining.

Referring to Fig. 1, combined type two roller tandem mills of the present invention, comprise rolling mill base 5, on base, along roll line A-A, are at least one horizontal rolling assembly 71 and at least one vertical rolling assembly 72 are alternately installed continuous arrangement.

According to rolling requirement, the horizontal rolling assembly 71 of combined type two roller tandem mills of the present invention and the configuration of vertical rolling assembly 72, can be divided into even number combination configuration or odd number combination configuration, the quantity of the quantity of horizontal mill assembly and vertical mill assembly " closing " is even number or is odd number.The operation of rolling of even number combination configuration is to start with horizontal rolling, finishes, or start with vertical rolling with vertical rolling, with horizontal rolling, finishes.The operation of rolling of odd number combination configuration is to start with horizontal rolling, finishes, or start with vertical rolling with horizontal rolling, with vertical rolling, finishes.

For above-mentioned different combining form, the structure of described rolling mill base 5 has following three kinds of patterns:

When for even number combination configuration, referring to Fig. 2-1, establish the input that the right-hand member in figure is milling train, what this figure showed is the combination of level-vertical alternately continuous arrangement.Now, with minimum unit, one group " level-vertical " is the basic structure of introducing rolling mill base 5.This base 5 comprises the base plate 70 with a groove 79 and a platform 80, be positioned at the horizontal rolling assembly framework that is provided with the horizontal rolling assembly 71 of installation on groove 79, be positioned on platform 80 the vertical rolling assembly framework that is affixed ground with horizontal rolling assembly framework and is the installed vertical rolling assembly 72 of 90 ° of settings, with the reinforced frame 77 that is positioned at two rolling assembly framework outsides, is fixedly connected with each rolling assembly framework and base plate 70 respectively, this framework has the through hole that rolled piece 12 is passed through.

Described horizontal rolling assembly framework and vertical rolling assembly framework comprise that the both sides, upper end of 73, two relative " door " font roof beams structure of two " door " font roof beams structure that are oppositely arranged are provided with the first tie-beam 75 that connects two " door " font roof beams structure separately.During installation, " door " font roof beam structure 73 of described horizontal rolling assembly framework is vertical with base plate 70, four columns of two " door " font roof beams structure are connected with base plate, hereinafter four columns in " door " font roof beam structure of horizontal rolling assembly framework are called to vertically-guided beam 74." door " font roof beam structure 73 of described vertical rolling assembly framework is to lie low on the platform 80 of base plate, one in two " door " font roof beams structure is connected with base plate 70, hereinafter four columns in " door " font roof beam structure of vertical rolling assembly framework is called to horizontally-guided beam 78.

Many groups level-vertical alternately milling train that continuous arrangement forms is on the basis of above-mentioned one group of level-vertical configuration, sets up many groups level-vertical rolling assembly framework.Described base has a plurality of grooves and a plurality of platform, horizontal rolling assembly framework and vertical rolling assembly framework are alternately arranged on base, its, outside of two rolling assembly frameworks arranged reinforced frame 77 equally at whole story, if Fig. 1,2-1,2-2 are that three groups of levels-vertical replace continuously arranged structural shape.

What more than introduce is first to carry out horizontal rolling to carry out the collocation form of vertical rolling again, for first carrying out, after vertical rolling, carries out the configuration of horizontal rolling again, and its structure is identical.

When combining for odd number, the base plate of described rolling mill base 5 70 is basic identical with above-mentioned even number combination, and its difference is that the quantity of groove on base plate 70 or platform is different.If the operation of rolling is to start with horizontal rolling, the configuration of the form that finishes with horizontal rolling, the base plate 70 of described rolling mill base 5 at least has two grooves and than the platform of few one of groove.If the operation of rolling is to start with vertical rolling, with vertical rolling, finish, the base plate 70 of described rolling mill base 5 at least has a groove and than the platform of many one of groove.

For strengthening rigidity and intensity, each horizontal rolling assembly framework, each vertical rolling assembly framework are connected in turn by the second tie-beam 76 respectively.

Under the prerequisite of work, installation, maintenance and roll change that does not affect horizontal rolling assembly and vertical rolling assembly, each rolling framework is coupled together, can in each rolling assembly framework, arrange or increase various tie-beams, connecting plate or reinforcement.

The floating type frame of described horizontal rolling assembly 71 and vertical rolling assembly 72 is embedded between the opposite face of two " door " font roof beams structure 73, see Fig. 1, the two opposite sides of its floating type frame 11 contact with two pairs of corresponding guide beams respectively, and can be along its surface sliding, the bottom of the floating type frame 11 of horizontal rolling assembly is inserted in groove 79, roll 3,2 axis perpendicular to it move, roll 67,66 axis that the floating type frame of vertical rolling assembly is perpendicular to it equally move, and roll Zha Feng center should overlap between two.For clarity sake, take Fig. 1 as example, the floating type rolling machine frame 11 of horizontal rolling assembly 71 shows as upper and lower vertical movement on drawing; The floating type rolling machine frame 11 of vertical rolling assembly 72 shows as forward and backward moving horizontally on drawing, and the floating type rolling machine frame of each adjacent horizontal rolling assembly and vertical rolling assembly can be the configuration of 90 ° at same plane M-M place with being affixed.

In addition, for reducing the height of horizontal rolling assembly 71, the vertically-guided beam 74 of in two " door " font roof beams structure 73 of horizontal rolling assembly can also be arranged in groove 79, the vertically-guided beam of another " door " font roof beam structure 73 is arranged on platform 80.Can will be arranged on this side in groove 79 as transmission side, opposite side is as fore side, as shown in Fig. 2-3,2-4.

For guaranteeing the mobile effect of adjusting of horizontal rolling assembly 71, on corresponding two pairs of vertically-guided beams 74 of two " door " font roof beams structure 73, be provided with liner plate or wear-resistant slide plate; For guaranteeing the mobile effect of adjusting of vertical rolling assembly, on corresponding two pairs of horizontally-guided beams 78 of two " door " shaped frames, be provided with liner plate or wear-resistant slide plate.

Like this, each horizontal rolling assembly 71 of combined type two roller tandem mills of the present invention and the distance between vertical assembly processed 72 are reduced to minimum, tandem mill is reduced along the entire length of roll line A-A, between workpiece front end and afterbody, overproof section is shortened greatly, thereby has realized the high goal of the invention of product quality.

Described horizontal rolling assembly 71 and vertical rolling assembly 72 are installed in rolling assembly framework separately separately, due to horizontal rolling assembly framework and vertical rolling assembly framework when mounted, both mutual placements in 90 °, therefore two rolls of horizontal rolling assembly are to be parallel to that base plate is upper and lower to be arranged in parallel, two rolls are called upper and lower roll, see 3 in Fig. 1,2.Two rolls of vertical rolling assembly are to erect perpendicular to base plate, in Fig. 1, are forward and backward be arrangeding in parallel, and two rolls are called transmission side roll 66 and fore side roll 67, and the roll line of the roll line of vertical rolling assembly and horizontal rolling assembly coincides.

Horizontal rolling assembly 71 of the present invention and vertical rolling assembly 72 comprise the floating type frame 11 in the rolling assembly framework that is embedded in rolling mill base separately, two rolls and roll chock are arranged in floating type frame, the bottom roll bearing block 1 of described horizontal rolling assembly is arranged on the second end plate 15 of floating type frame 11, the fore side roll chock 68 of described vertical rolling assembly is arranged on the second end plate 15 of floating type frame 11, 72 roll seam guiding mechanism of described horizontal rolling assembly 71 and vertical rolling assembly is arranged on the first end plate 14 of floating type frame 11 separately separately, also increased the roll gap centering body being arranged on movable top cover 6, described movable top cover 6 is connected with the first tie-beam 75 of each rolling assembly framework.

Fig. 3 is first embodiment of described horizontal rolling assembly and vertical rolling assembly, its roll seam guiding mechanism has one and depresses servo hydraulic cylinder 9, described depressing in the first end plate 14 that servo hydraulic cylinder 9 is arranged on described floating type frame 11, the end face of its piston rod is resisted against on corresponding roll chock.Described roll gap centering body has two centering hydraulic cylinders 8, and its piston rod is connected with floating type frame 11 through top cover 6.

Fig. 4 is second embodiment of described horizontal rolling assembly and vertical rolling assembly, its roll seam guiding mechanism has one and depresses servo hydraulic cylinder 9, described depressing in the first end plate 14 that servo hydraulic cylinder 9 is arranged on described floating type frame 11, the end face of its piston rod is resisted against on corresponding roll bearing.Described roll gap centering body has a centering hydraulic cylinder 8, and its piston rod passes top cover 6 by Connection Block 13 and depresses servo hydraulic cylinder 9 and is cascaded.

Fig. 5 is the 3rd embodiment of described horizontal rolling assembly and vertical rolling assembly, its roll seam guiding mechanism has two and depresses servo hydraulic cylinder 9, described depressing in the first end plate 14 that servo hydraulic cylinder 9 is arranged on described floating type frame 11, the end face of its piston rod is resisted against on corresponding roll bearing.Described roll gap centering body has a centering hydraulic cylinder 8, and its piston rod is connected with floating type frame 11 through top cover 6.

In above-mentioned first, second and third embodiment, the roll seam guiding mechanism of described horizontal rolling assembly and the roll seam guiding mechanism of vertical rolling assembly are basic identical, its difference is that the servo hydraulic cylinder 9 of depressing of horizontal rolling assembly is arranged on the first end plate 14 that described floating type frame 11 is arranged in topping roll bearing block 4 one sides, and the end face of its piston rod is resisted against on topping roll bearing block 4; The servo hydraulic cylinder 9 of depressing of vertical rolling assembly is arranged on the first end plate 14 that described floating type frame 11 is arranged in transmission side roll chock 65 1 sides, and the end face of its piston rod is resisted against on transmission side roll bearing 65.

In above-mentioned first, second and third embodiment, the shift motion of described centering hydraulic cylinder 8 is to depress 1/2 of servo hydraulic cylinder 9 shift motions, the moving direction of described centering hydraulic cylinder 8 with described in to depress the moving direction of servo hydraulic cylinder 9 contrary.

Like this, the horizontal rolling assembly of take is example, it is as follows that principle is adjusted in its two roll seam: control and depress servo hydraulic cylinder 9, topping roll 3 is moved with respect to bottom roll 2, meanwhile, control centering hydraulic cylinder 8, make floating type frame 11 carry two rolls 2,3 and with respect to rolling mill base 5, move together.The shift motion that servo hydraulic cylinder 9 is depressed in setting is 2 times of centering hydraulic cylinder 8 shift motions, that is: by displacement transducer 7 electric interlocks, it is 2 times of centering hydraulic cylinder 8 piston rod amount of movements that servo hydraulic cylinder 9 piston rod amount of movements are depressed in control, and moving direction to make on the contrary topping roll 3 are twices of floating type frame 11 amount of movement together with two rolls 2,3 with respect to the amount of movement of bottom roll 2.

Above, bottom roll 3,2 gap adjustment are reduced to example: suppose: the total backlash adjustment amount between upper and lower roll 3,2 :-Δ h, the operation principle of above-mentioned adjustment two roll seams is formulated as follows, wherein: the direction of X-Y reference axis of take is standard, when the moving direction of roll or floating type frame is identical with reference axis Y direction, with "+", represent, when the moving direction of roll or floating type frame is contrary with reference axis Y direction, with "-", represent.

If: topping roll 3 moves down adjustment :-Δ h

Floating type frame 11 adjustment that moves up together with two rolls 2,3 :+1/2 Δ h

: topping roll 3 actual moves down adjustment :-Δ h+1/2 Δ h=-1/2 Δ h

The actual adjustment that moves up of bottom roll 2 :+1/2 Δ h

Total backlash adjustment amount between upper and lower roll 3,2: (Δ h+1/2 Δ h)-(+1/2 Δ h)=-Δ h

The actual shift motion of floating type frame 11 :+1/2 Δ h

From above-mentioned result of calculation, can learn: when topping roll moves down adjustment-1/2 Δ h, the bottom roll 2 adjustment+1/2 Δ h that correspondingly moves up, while also correspondingly move+1/2 Δ h of floating type frame, thereby relatively move two rolls 3,2, not only having realized topping roll 3 reduces to adjust with the gap of bottom roll 2, and the roll gap of two rolls 3,2 can automatic centering regulates, keep the invariant position at roll gap center.And total backlash adjustment amount is-Δ h between upper and lower roll 3,2, that is: two roll seam adjustment amounts are also that the adjustment amount of depressing of rolled piece is-Δ h.

Otherwise, if on, bottom roll 3, 2 gaps are adjusted into while increasing, that is: suppose: on, bottom roll 3, total backlash adjustment amount between 2 :+Δ h, synergy because of roll balance mechanism 10 pretension counter-forces, topping roll bearing block 4 abuts against the piston rod end of depressing servo hydraulic cylinder 9 all the time, same by displacement transducer 7 electric interlocks, it is 2 times of centering hydraulic cylinder 8 piston rod amount of movements that servo hydraulic cylinder 9 piston rod amount of movements are depressed in control, and moving direction is contrary, topping roll is moved up while adjusting one 1/2 Δ h, bottom roll 2 correspondingly moves down adjustment+1/2 Δ h, floating type frame also correspondingly moves down adjustment+1/2 Δ h simultaneously, thereby mobile two rolls 3, 2, not only realized the gap adjustment of topping roll 3 with bottom roll 2, and two roll 3, 2 roll gap automatic centering regulates, still can keep the invariant position at roll gap center.Its operation principle is identical, for making word succinct, is not going to repeat.

When adjusting the initial position of two roll seams, first control the centering hydraulic cylinder 8 of roll gap centering body, mobile floating type frame 11, make roll gap center adjustment to desired location, and then by displacement transducer 7 electric interlocks, control the centering hydraulic cylinder 8 of depressing servo hydraulic cylinder 9 and roll gap centering body of roll seam guiding mechanism, default definite value is adjusted to in the gap of two rolls 3,2; The roll gap that guarantees each milling train is centered close on rolling centerline, meets rolling requirement.

For vertical rolling assembly, it is the same that principle is adjusted in its two roll seam, for making word succinct, is not going to repeat.

In a word, in above-mentioned first, second and third embodiment, after roll gap center is set, in continuous rolling, carry out roll seam adjustment, referring to Fig. 1 and 3,4,5, rolled piece 12 successively through two roll gap of erectting between rolls of the roll gap between two horizontal rolls of horizontal rolling assembly 71 or vertical rolling assembly 72, carries out longitudinally vertical rolling by the body of roll of two horizontal rolls to rolled piece 12 along roll line A-A, by the body of roll of two setting rolls, rolled piece 12 is carried out to transverse horizontal rolling.According to rolling requirement, control and to depress servo hydraulic cylinder 9, implement respectively topping roll 3, transmission side roll 66 moves adjustment; Control centering hydraulic cylinder 8 simultaneously, floating type frame 11 and bottom roll 2, floating type frame 11 and fore side roll 67 relatively the mobile of half trip are adjusted, make respectively two roll seams of upper and lower roll 3,2 and transmission side, fore side roll 66,67 adjust to setting value, roll gap center is constant simultaneously.The variable quantity of roll seam adjustment by with depress the displacement transducer 7 that servo hydraulic cylinder 9 or centering hydraulic cylinder 8 be connected and control.

Fig. 6, the 4th embodiment of described horizontal rolling assembly and vertical rolling assembly, its roll seam guiding mechanism has a set of worm-and-wheel gear of depressing.The worm-and-wheel gear of depressing of described horizontal rolling assembly comprises: be arranged on a screw box 23 in the first end plate 14 of described floating type frame 11, with the depress spiro rod 16 being threaded with screw box 23, one end of this depress spiro rod 16 leans on corresponding roll chock, the other end is provided with and is depressed worm gear 21 by connecting key 24, depress worm gear 21 and depress worm screw 22 engagements, depress worm gear 21, depress worm screw 22 and be arranged on together with bearing 31 in reduction case 32, reduction case 32 is fixedly connected with floating type frame 11.The described worm gear 21 of depressing is fastenedly connected with connecting key 24, and connecting key 24 is slidably matched with the keyway of depress spiro rod 16.

Described roll gap centering body has two cover centering worm-and-wheel gears, every cover centering worm-and-wheel gear comprises: be arranged on the centering nut 29 in described top cover 6, with the centering screw rod 17 being threaded with centering nut 29, on described centering nut 29, centering worm gear 19 is installed, both connections can connect by the connected mode of key 26 routines such as grade.Described centering worm gear 19 and 20 engagements of centering worm screw.Two centering screw rods 17 are connected with floating type frame 11 through top cover 6 respectively, between two centering worm screws 20, by clutch 35, are connected.

Fig. 7 is the horizontal rolling assembly of described milling train and the 5th embodiment of vertical rolling assembly, and its roll seam guiding mechanism has a set of worm-and-wheel gear of depressing, and its mounting means is identical with the 4th embodiment; Described roll gap centering body has a set of centering worm-and-wheel gear.Described centering worm-and-wheel gear comprises: be arranged on the centering nut 29 in described top cover 6, and the centering screw rod 17 being threaded with centering nut 29, on described centering nut 29, centering worm gear 19 is installed, centering worm gear 19 and 20 engagements of centering worm screw; Centering screw rod 17 is connected with Connection Block 13 through top cover 6, and Connection Block 13 is arranged on reduction case 32, depresses worm-and-wheel gear and centering worm-and-wheel gear and links together with the form being connected in series.

Fig. 8 is the horizontal rolling assembly of described milling train and the 6th embodiment of vertical rolling assembly, its roll seam guiding mechanism has two covers and depresses worm-and-wheel gear, every cover is depressed worm-and-wheel gear and is comprised: be arranged on a screw box 23 in the first end plate 14 of described floating type frame 11, with the depress spiro rod 16 being threaded with screw box 23, one end of this depress spiro rod 16 leans on corresponding roll chock, the other end is provided with and is depressed worm gear 21 by connecting key 24, depress worm gear 21 and depress worm screw 22 engagements, the described worm gear 21 of depressing, depress worm screw 22 is arranged in reduction case 32 together with bearing 31, reduction case 32 is fixedly connected with floating type frame 11.The described worm gear 21 of depressing is fastenedly connected with connecting key 24, and connecting key 24 is slidably matched with the keyway of depress spiro rod 16; In Liang Tao mechanism one depress worm screw 22 by shaft coupling 34 with depress motor 33 and be connected, depress for two and between worm screw 22, be provided with clutch 35.

Described roll gap centering body has a set of centering worm-and-wheel gear, comprise: be arranged on the centering nut 29 in described top cover 6, with the centering screw rod 17 being threaded with centering nut 29, on described centering nut 29, centering worm gear 19 is installed, centering worm gear 19 and 20 engagements of centering worm screw; Centering screw rod 17 is connected with described floating type frame 11 through top cover 6.

In above-mentioned fourth, fifth, six embodiment, described horizontal rolling assembly roll seam guiding mechanism and vertical rolling assembly roll seam guiding mechanism are basic identical, its difference is that the horizontal rolling assembly screw box 23 of depressing worm-and-wheel gear is arranged on the first end plate 14 that described floating type frame 11 is arranged in topping roll bearing block 4 one sides, and the end face of its piston rod is resisted against on topping roll bearing block 4; The screw box 23 that vertical rolling assembly is depressed worm-and-wheel gear is arranged on the first end plate 14 that described floating type frame 11 is arranged in transmission side roll chock 65 1 sides, and the end face of its piston rod is resisted against on transmission side roll chock 65.

In above-mentioned fourth, fifth, six embodiment, one end of described centering nut 29 has pressing plate 27, baffle plate 30 is set in the other end during installation, or is a cylindrical shape, and baffle plate 30 is set at two ends during installation, all can be arranged on top cover 6.

Be provided with encoder depressing on worm screw 22, this encoder also can be arranged on the motor of depressing worm screw 22.

On centering worm screw 20, be provided with encoder, this encoder also can be arranged on the motor of centering worm screw.

During rolling, the shift motion of described centering screw rod 17 is 1/2 of depress spiro rod 16 shift motions, and the moving direction of described centering screw rod 17 is contrary with depress spiro rod 16 moving directions.

One side of described centering worm gear 19 has annular boss 28, has the cannelure matching with the annular boss 28 of centering worm gear 19 on described top cover 6, to ensure that centering worm gear 19 locates on circumference, as Fig. 6,7,8.The wheel rim place that is positioned at centering worm gear 19 on described top cover 6 is provided with worm gear pressing plate 25, as Fig. 6,7,8, so that when integral hoisting centering nut 29, centering worm gear 19 and top cover 6, this worm gear pressing plate 25 can carry out the centering worm gear 19 in lifting spacing, prevents 19 slippages of centering worm gear.

For the service life that reduces the resistance in above-mentioned adjustment process and improve centering worm gear 19 and centering nut 29, the annular boss 28 of described centering worm gear 19 can be provided with rolling bearing or abrasion-resistant slide bearing with pressing plate 27, centering nut 29 with the moving surface of top cover 6 with the cannelure of top cover 6, centering worm gear 19.Certainly, for overall structure is more simplified, centering nut 29, pressing plate 27 and baffle plate 30 and centering worm gear 19 also can be made by Cu alloy material.

Like this, still the horizontal rolling assembly of take is example, it is as follows that principle is adjusted in its two roll seam: by depressing motor 33 by depressing worm screw 22, depressing worm gear 21 and connecting key 24 rotation depress spiro rods 16, control depress spiro rod 16 shift motions, topping roll 3 is moved, meanwhile with respect to bottom roll 2; By centering motor 38, by centering worm screw 20, centering worm gear 19 and key 26, rotate centering nut 29, control centering screw rod 17 shift motions, make floating type frame 11 carry two rolls 2,3 and with respect to rolling mill base 5, move together.The shift motion of setting depress spiro rod 16 is 2 times of centering screw rod 17 shift motions, that is: by encoder 7 electric interlocks controls, depressing motor 33, centering motor 38 rotates respectively, the shift motion of depress spiro rod 16 is 2 times of centering screw rod 17 shift motions, and moving direction is contrary, making topping roll 3 is twices of floating type frame 11 amount of movement together with two rolls 2,3 with respect to the amount of movement of bottom roll 2.Its operation principle is identical with the roll seam guiding mechanism of above-mentioned first, second and third embodiment and the operation principle of roll gap centering body, for making word succinct, is not going to repeat.

For vertical rolling assembly, it is the same that principle is adjusted in its two roll seam.Thereby the operation principle of carrying out roll seam adjustment in continuous rolling is also identical with above-mentioned first, second and third embodiment.For making word succinct, at this, also much more no longer to state.

Referring to Fig. 9,10,11, for simplifying structure and the control of above-mentioned fourth, fifth, six embodiment, above-mentioned depress spiro rod 16 and centering screw rod 17 are combined, that is: with one, depress centering screw rod 18 and substitute above-mentioned depress spiro rod 16 and centering screw rod 17, and arrange one and depress worm gear of motor 33 transmission and can complete above-mentioned roll seam and adjust and roll gap automatic centering.The specific embodiment is:

Fig. 9 is the horizontal rolling assembly of described milling train and the 7th embodiment of vertical rolling assembly, its roll seam guiding mechanism has a set of centering worm-and-wheel gear of depressing, the described centering worm-and-wheel gear of depressing comprises: be arranged on a screw box 23 in the first end plate 14 of described floating type frame 11 and be threaded with screw box 23 depress centering screw rod 18, this one end of depressing centering screw rod 18 leans on corresponding roll chock, the other end is provided with and is depressed worm gear 21 by connecting key 24, this is depressed worm gear 21 and meshes with the worm screw 22 of depressing with encoder, depress worm gear 21, depress worm screw 22 is arranged in reduction case 32 together with bearing 31, reduction case 32 is fixedly connected with floating type frame 11, the described worm gear 21 of depressing is fastenedly connected with connecting key 24, connecting key 24 is slidably matched with the keyway of depressing centering screw rod 18.

Described roll gap centering body comprises: be arranged on the centering nut 29 in described top cover 6, this centering nut 29 is threaded with the centering screw rod 18 of depressing of above-mentioned roll seam guiding mechanism.

Figure 10 is the horizontal rolling assembly of described milling train and the 8th embodiment of vertical rolling assembly, its roll seam guiding mechanism has two covers and depresses centering worm-and-wheel gear, the mounting means that every cover is depressed centering worm-and-wheel gear is identical with the 7th embodiment, difference is: two depress in worm screw 22 one by shaft coupling 34 with depress motor 33 and be connected, depress for two and between worm screw 22, be provided with clutch 35.

The structure of described roll gap centering body is identical with the 7th embodiment with mounting means.

Figure 11 is the horizontal rolling assembly of described milling train and the 9th embodiment of vertical rolling assembly, its roll seam guiding mechanism has two covers and depresses centering worm-and-wheel gear, the mounting means that every cover is depressed centering worm-and-wheel gear is identical with the 7th embodiment, difference is: depress worm screw 22 for two and by shaft coupling 34, be connected with the motor 33 of depressing separately respectively, depress for two and between worm screw 22, be provided with clutch 35.

The structure of described roll gap centering body is identical with the 7th embodiment with mounting means.

In above-mentioned the 7th, eight, nine embodiment, described horizontal rolling assembly roll seam guiding mechanism and vertical rolling assembly roll seam guiding mechanism are basic identical, its difference is that the horizontal rolling assembly screw box 23 of depressing centering worm-and-wheel gear is arranged on the first end plate 14 that described floating type frame 11 is arranged in topping roll bearing block 4 one sides, and the end face of its piston rod is resisted against on topping roll bearing block 4; The screw box 23 that vertical rolling assembly is depressed centering worm-and-wheel gear is arranged on the first end plate 14 that described floating type frame 11 is arranged in transmission side roll chock 65 1 sides, and the end face of its piston rod is resisted against on transmission side roll chock 65.

In above-mentioned the 7th, eight, nine embodiment, the described pitch of depressing centering screw rod 18 and centering nut 29 screw threads is to depress 1/2 of pitch between centering screw rod 18 and screw box 23, described in depress the rotation direction of centering screw rod 18 and screw box 23 screw threads and depress centering screw rod 18 identical with the rotation direction of centering nut 29 screw threads.

Like this, or take horizontal rolling assembly is example, and it is as follows that principle is adjusted in its two roll seam: depress motor 33 by depressing worm screw 22, depress worm gear 21 and connecting key 24 and rotate and depress centering screw rod 18.Because depressing centering screw rod 18, be to be threaded with screw box 23, screw box 23 becames one with floating type frame 11, when depressing 18 rotation of centering screw rod, floating type frame 11 moves with respect to topping roll 3 together with bottom roll 2, meanwhile, because depressing centering screw rod 18, be also threaded with centering nut 29, depress centering screw rod 18 rotates in centering nut 29, and centering nut 29 does not rotate, therefore depress centering screw rod 18, drive floating type frame with respect to rolling mill base 5, to move together with two rolls.Because centering nut 29 and the pitch of depressing centering screw rod 18 are to depress centering screw rod 18 and 1/2 of screw box 23 pitch, and thread rotary orientation is identical, therefore after above-mentioned two mobile adjustment, floating type frame 11 is 2 times and opposite direction of floating type frame 11 amount of movement together with two rolls with bottom roll 2 amount of movements.

Above, bottom roll 3,2 gap adjustment are reduced to example: suppose: the total backlash adjustment amount between upper and lower roll 3,2 :-Δ h, the operation principle of above-mentioned adjustment two roll seams is as follows by formulae express, wherein: the direction of X-Y reference axis of take is standard, when the moving direction of roll or floating type frame is identical with reference axis Y direction, with "+", represent, when the moving direction of roll or floating type frame is contrary with reference axis Y direction, with "-", represent.

If: depress centering screw rod 18 and screw box 23, centering nut 29 for right-handed thread, when depressing worm gear 21, turn clockwise while depressing centering screw rod 18, depress centering screw rod 18 and turn clockwise in screw box 23.Now, screw box 23 and floating type frame 11 and bottom roll 2 are relative together depresses centering screw rod 18 and topping roll 3 amounts of moving up are :+Δ h

Meanwhile, depress centering screw rod 18 and turn clockwise in centering nut 29, make to depress centering screw rod 18 drive floating type frame 11, two rolls 3,2 together again the amount of moving down be :-1/2 Δ h

: topping roll 3 actual moves down adjustment :-1/2 Δ h

The actual adjustment that moves up of bottom roll 2 :+Δ h-1/2 Δ h=+1/2 Δ h

Total backlash adjustment amount between upper and lower roll 3,2 :-1/2 Δ h-(+1/2 Δ h)=-Δ h

The actual shift motion of floating type frame 11 :+Δ h-1/2 Δ h=+1/2 Δ h

From above result of calculation, can learn: when topping roll 3 moves down adjustment-1/2 Δ h, the bottom roll 2 adjustment+1/2 Δ h that correspondingly moves up, the floating type frame adjustment+1/2 Δ h that also correspondingly moves up simultaneously, thereby relatively move two rolls 3,2, not only having realized topping roll 3 reduces to adjust with the gap of bottom roll 2, and the roll gap of two rolls 3,2 can automatic centering regulates, keep the invariant position at roll gap center.And total backlash adjustment amount is-Δ h between upper and lower roll 3,2, that is: two roll seams adjust variable quantities namely rolled piece depress adjustment amount for-Δ h.

Otherwise, when depressing motor 33 reversions, depressing worm gear 21 is rotated counterclockwise and depresses centering screw rod 18, now, depress centering screw rod 18 is rotated counterclockwise in screw box 23, because of the synergy of roll balance mechanism 10 pretension counter-forces, topping roll bearing block 4 abuts against the end of depressing centering screw rod 18 all the time, makes floating type frame 11 with bottom roll 2 together relative topping roll 3 amounts of moving down be :-Δ h

Meanwhile, depress centering screw rod 18 and be rotated counterclockwise in centering nut 29, make to depress centering screw rod 18 drive floating type frame 11 together with two rolls 3,2 round about the amount of moving up be :+1/2 Δ h

: the actual adjustment that moves up of topping roll 3 :+1/2 Δ h

Bottom roll 2 actual moves down adjustment :-Δ h+1/2 Δ h=-1/2 Δ h

Total backlash adjustment amount between upper and lower roll 3,2 :+1/2 Δ h-(1/2 Δ h)=+ Δ h

The actual shift motion of floating type frame 11 :-Δ h+1/2 Δ h=-1/2 Δ h

From above result of calculation, can learn: when move up+1/2 Δ h of topping roll 3, bottom roll 2 correspondingly moves down-1/2 Δ h, floating type frame also correspondingly moves down-1/2 Δ h simultaneously, thereby relatively move two rolls 3,2, not only realize topping roll 3 and increased adjustment with the gap of bottom roll 2, and the roll gap of two rolls 3,2 can automatic centering regulates, keep the invariant position at roll gap center.And between upper and lower roll 3,2, total backlash adjustment amount is :+Δ h, that is: same two roll seam adjustment amounts namely rolled piece 12 depress adjustment amount for+Δ h.

If depress centering screw rod 18 and screw box 23, centering nut 29 for left hand thread, the operation principle that its two roll seam is adjusted is identical with two above-mentioned roll seams adjustment operation principles, is not going to repeat.

In addition, for regulating the initial position at two roller gap centers, on described centering nut 29, be provided with the initial adjustment worm gear 36 being connected with centering nut 29 by key 26, this initial adjustment worm gear 36 and 37 engagements of initial adjustment worm screw, initial adjustment worm screw 37 is connected with initial adjustment motor 39 by shaft coupling.Like this, control initial adjustment motor 39 transmission initial adjustment worm screws 37,36 drive centering nuts 29 rotations of initial adjustment worm gear, depressing centering screw rod 18 moves together with upper and lower roll 3,2 with floating type frame 11 in the vertical direction, default definite value is adjusted to in the roll gap center of two rolls 3,2, the roll gap that guarantees each milling train is centered close to roll line A-A above, meets rolling requirement.

For vertical rolling assembly, it is the same that principle is adjusted in its two roll seam, for making word succinct, is not going to repeat.

In a word, in above-mentioned the 7th, eight, nine embodiment, after roll gap center is set, in continuous rolling, carry out roll seam adjustment, referring to Fig. 1 and 9,10,11, rolled piece 12 along roll line A-A successively through two roll gap of erectting between rolls 66,67 of the roll gap between two horizontal rolls 1,2 of horizontal rolling assembly 71 and vertical rolling assembly 72, by the body of roll of two horizontal rolls 1,2, rolled piece is carried out to longitudinally vertical rolling, by the body of roll of two setting rolls 66,67, rolled piece 12 is carried out to transverse horizontal rolling.According to rolling requirement, motor 33 is depressed in control, by depressing worm screw 22, depress worm gear 21 and make to depress 18 rotations of centering screw rod, both by means of the screw box 23 that is arranged on each floating type frame 11, implement respectively the movement of unsteady frame and bottom roll 2 or fore side roll 67, simultaneously again by means of the centering nut 29 being arranged in top cover, integrally move floating type frame and two roll, topping roll 3, transmission side roll 66 is the movement of half trip relatively, make respectively, bottom roll 3, 2 and transmission side, fore side roll 66, setting value is adjusted in 67 two roll seams, roll gap center is constant simultaneously, the variable quantity of roll seam adjustment by with depress motor 33 or depress the encoder 7 that worm screw 22 is connected and control.

One side of described initial adjustment worm gear 36 has annular boss 28, has the cannelure matching with the annular boss 28 of initial adjustment worm gear 36 on described top cover 6, and initial adjustment worm gear 36 is located on circumference.The wheel rim place that is positioned at initial adjustment worm gear 36 on described top cover 6 is provided with worm gear pressing plate 25.So that when integral hoisting centering nut 29, initial adjustment worm gear 36 and top cover 6, this worm gear pressing plate 25 can carry out the initial adjustment worm gear 36 in lifting spacing, prevents 36 slippages of initial adjustment worm gear.

For the service life that reduces the resistance in above-mentioned adjustment process and improve initial adjustment worm gear 36 and centering nut 29, described initial adjustment worm gear 36 annular boss 28 can be provided with rolling bearing or abrasion-resistant slide bearing with pressing plate 27, centering nut 29 with the moving surface of top cover 6 with cannelure, the initial adjustment worm gear 36 of top cover 6.Certainly, for overall structure is more simplified, centering nut 29, pressing plate 27 and baffle plate 30 and initial adjustment worm gear 36 also can be made by Cu alloy material.

For the dismounting of roll gap centering body, conventionally, first by depressing centering screw rod 18, be screwed in the screw box 23 being arranged in floating type frame 11 end plates, then will depress worm gear 21, depress worm screw 22, bearing 31 and reduction case 32 and other relevant accessories are assembled into after worm reducer and are enclosed within and depress on centering screw rod 18, and be fixed on together with depressing motor 33 in floating type frame 11, simultaneously by worm reducer with depress between motor 33 output shafts with shaft coupling 34 and be connected, afterwards described floating type frame 11 is inserted in rolling mill base 5 together with related components such as two roll chocks, second step, is screwed into screw rod 18 upper ends by centering nut 29, the structural shape of now selecting centering nut 29 and baffle plate 30 to became one, the 3rd step, is arranged on initial adjustment worm gear 36, initial adjustment worm screw 37, initial adjustment motor 39 and bearing, worm gear pressing plate 25 etc. on top cover 6, and shaft joint 34 is arranged on relevant position, the 4th step, by top cover 6 and the relevant parts such as superincumbent initial adjustment worm gear 36, initial adjustment worm screw 37, initial adjustment motor 39 and bearing, worm gear pressing plate 25 are installed and are together sling and be enclosed within on centering nut 29, and load key 26 in the keyway on centering nut 29 and initial adjustment worm gear 36 composition surfaces.Finally, in the upper end of centering nut 29, pressing plate 27 is installed, with bolt, top cover 6 is fixed on rolling mill base 5.

In a word, the roll seam guiding mechanism of the horizontal rolling assembly 71 of the combined type two roller tandem mills described in the invention described above and roll gap centering body are identical with the roll seam guiding mechanism of vertical rolling assembly 72 and the specific embodiment of roll gap centering body structure, and the principle of two roll seam adjustment is also identical.While just assembling, because being erect to the difference of placing, two rolls of two roll horizontal positioned of horizontal rolling assembly, vertical rolling assembly 72 make installation site different.

Referring to Figure 12,13, for convenience of the roll change of vertical rolling assembly, described floating type frame 11 is designed to detachable frame, and it comprises frame body 40, housing cap 44 and the retaining mechanism with housing cap 44 for connection frame body 40.

The cross sectional shape of described frame body 40 is the unsealed rectangle of a side, does not seal side towards the fore side of milling train during installation, thereby transmission side, fore side roll chock 65,68 can directly flatly shift out or move into from the fore side of milling train.On two relative risers of described frame body 40, have window, be positioned at the not inner face of the riser of sealing end and have respectively the keyway 43 equipped with housing cap 44 rectangle contiguous block keyways 46, its outside has the male half coupling coordinating with housing cap 44.

Described housing cap 44 has end plate 47, the rectangle contiguous block matching with the internal orifice of frame body 40 and the inner stopper mutually equipped with the male half coupling of frame body 40 of connection, its section configuration is similar to " mountain " font, on the relative two sides of described rectangle contiguous block, there is the keyway 46 equipped with 40 liang of riser keyways 43 of frame body, as shown in figure 12.

Like this, the inner stopper of the male half coupling of above-mentioned frame body 40 and housing cap 44 plays the effect of located lateral frame body 40, while preventing that vertical floating open frame 11 is subject to roll-force, two risers of frame body 40 are outwards distortion laterally, to strengthen the rigidity of split-type vertical floating open frame.

Described retaining mechanism comprises: be arranged on feather key 42 in the keyway 46,43 of housing cap 44 and frame body 40, control the hydraulic cylinder 41 of these feather key 42 displacements and be arranged on the compression hydraulic cylinder 45 in housing cap 44 outsides.The piston rod of described compression hydraulic cylinder 45 connects end plate 47 through housing cap, is resisted against the end of frame body 40, for eliminating the gap of feather key 42 stressed contact-making surfaces; The hydraulic cylinder seat 50 of described hydraulic cylinder 41 is arranged on the upper surface of described housing cap 44 rectangle contiguous blocks, and its piston rod is connected with the upper end of feather key 42.

Described feather key 42 comprises the joint 48 of cuboid and the guide head 49 of connected " T " font, its shape similar " work " word steel, as shown in figure 16.

Described feather key 42 is arranged on after the keyway 43 of described frame body 40 and the keyway 46 of housing cap 44, the interface X-X of two keyways is the diagonal angle joint face Z-Z of cuboid of the joint 48 of feather key 42, therefore the keyway shape on frame body 40 is right angled triangle keyway, the special-shaped keyway that is shaped as a right angled triangle and " T " font combination of the keyway 46 on housing cap, as shown in figure 14.

Like this, when two risers of connection frame body 40 and the rectangle contiguous block of housing cap 44, drive hydraulic cylinder 41, its piston rod is through cylinder seat, and feather key 42 is mounted respectively in keyway 43,46, screws being connected of hydraulic cylinder seat 50 and housing cap 44; Drive and compress hydraulic cylinder 45, its piston rod connects end plate 47 through housing cap, and its end is resisted against the end of frame body.In the time need to removing being connected of frame body 40 risers and housing cap rectangle contiguous block, drive and compress hydraulic cylinder 45, eliminate the thrust of frame body end; Dismounting hydraulic cylinder seat 50 is connected with housing cap rectangle contiguous block, drives hydraulic cylinder 41, and its piston rod is raised in keyway 43,46 with feather key 42; After feather key 42 is extracted out completely, frame body 40 vertical plates and housing cap rectangle contiguous block are just thrown off, and can carry out roller replacing operation or accident treatment work subsequently.

Referring to Figure 15 and Figure 18,19, in order to shorten the stroke of feather key and hydraulic cylinder 41, described feather key 42 is divided into three sections of 42a, 42b, 42c at length direction, the shape of two ends section 42a, 42c is identical, comprise the joint 48 of cuboid and the guide head 49 of connected " T " font, its shape similar " work " word steel, as shown in figure 16; The joint 48 of its interlude 42b be shaped as right angled triangle, guide head 49 is still " T " font, as shown in figure 17.The length of two ends section is all less than 1/3 of feather key total length.

Equally, the right angled triangle keyway of described frame body 40 is also divided into three sections of 43a, 43b, 43c at length direction, the shape of two ends section 43a, 43c is identical, its interlude 43b has holding tank, the shape of this holding tank can be rectangle or other shape, the width of holding tank is more than or equal to the width on two ends paragraph key groove 43a, 43c right angled triangle base, and the degree of depth is slightly larger than the degree of depth of two ends paragraph key groove 43a, 43c right angled triangle.Certainly, above-mentioned holding tank also can be arranged on the special-shaped slot middle part of housing cap, and its principle is the same, at this, no longer illustrates.

Like this, when 40 liang of risers of needs connection frame body and housing cap 44 rectangle contiguous block, drive hydraulic cylinder 41, its piston rod is through cylinder seat, feather key 42 is mounted in the next, now riser be actually being connected of rectangle contiguous block by the upper end section 42a of feather key 42 and having cooperatively interacted of keyway upper end section 43a, lower end section 42c and keyway lower end section 43c, the interlude 42b of feather key 42 does not play any connection function, as shown in figure 18.In the time need to removing being connected of 40 liang of risers of frame body and housing cap 44 rectangle contiguous blocks, drive and compress hydraulic cylinder 45, eliminate the thrust of frame body end; Drive hydraulic cylinder 41, its piston rod is raised in keyway with feather key 42; When the lower end of feather key 42 section 42c walks to holding tank, be that feather key is in upper, the right angled triangle end of its rectangle joint 48 departs from the constraint of frame body 40 hypomere right angled triangle keyway 43c, 48 of the heteromorphic connectors of the interlude 42b of feather key 42 are arranged in the special-shaped keyway of housing cap, the upper end section 42a of feather key 42 is positioned at hydraulic cylinder seat 50, feather key 42 with removed being completely connected of keyway of frame body 40, frame body 40 risers and housing cap 44 rectangle contiguous blocks are in disengaged condition, as shown in figure 19.But, the guide head 49 of feather key 42 is still arranged on housing cap 44 rectangle cube contiguous blocks, can move with housing cap 44, and because the piston rod stroke of hydraulic cylinder 40 is shortened, and needn't remove being again connected of hydraulic cylinder seat 50 and housing cap 44, hydraulic cylinder seat 50 also can move together along with housing cap 44, control roll change mechanism, housing cap 44 just with feather key 42 mounted thereto, hydraulic cylinder 41 and hydraulic cylinder seat 50, compress hydraulic cylinder 4 and together with being fixed on fore side roll chock 1 on housing cap 44 and roll 2 or housing cap 44 together with fore side roll chock 1, roll 2, 3 shifting out or moving into from frame body 40 fore side opening part levels together with transmission side roll chock 4, thereby both shortened the stroke of hydraulic cylinder 41, can reduce more than 2/3 stroke, the hydraulic cylinder 41 having reduced again and the total height of hydraulic cylinder seat 50, the installation and removal of frame body and housing cap 44 have also been simplified, further reduced roller replacing operation or processed stifled the attached of steel accident and help the time, improved operating rate.

Equally, while being detachable for the floating type frame 11 of vertical rolling assembly, the guiding mechanism design of described roll seam is on the end plate of the frame body 40 of floating type frame 11, the movable top cover 6 of roll gap centering body or design are on transmission side first tie-beam 75 of base 70 " door " font roof beam structure 73 horizontally-guided beams 78, and the bearing block 1 of fore side roll is fixedly mounted on the end face of rectangle contiguous block of housing cap 44.

Roll change mechanism of the present invention, this roll change mechanism comprises horizontal roll roll change mechanism and the vertical rolls roll change mechanism matching with each rolling assembly.Described horizontal roll change mechanism is identical with the roll change mechanism of existing level milling train, referring to Figure 20, comprise roll change base 56, be arranged on the bearing block moving track 81 on base plate 70 and roll change base 56, be placed on the movable support bracket with roller 57 58 on moving track 81, the pull bar 53 being connected with movable support bracket 58 and the roll change hydraulic cylinder 55 being connected with pull bar.Described bearing block moving track 81 can be divided into two sections, and one section is set directly on base plate 70, and another section is arranged on roll change base 56.For reinforced pull rod rigidity, on described pull bar 53, be provided with the support guide roller 54 that can roll on bearing block moving track 81.

During roll change, first level of control rolling assembly depresses servo hydraulic cylinder 9, the distance of upper and lower roll 3,2 is adjusted to roll change position, be that upper and lower roll 3,2 is in maximum opening degree, control centering hydraulic cylinder 8, the mobile frame 11 of floating, makes the bottom surface of bottom roll bearing block 1 be down to consistent with bearing block moving track 81 surfaces of roll change base 56, dismounting transmission mechanism 61 is connected with two rolls, and the spindle of two rolls is fixed by Bing You spindle alignment mechanism 60.Then control roll change hydraulic cylinder 55, the piston rod indentation of roll change hydraulic cylinder 55, pull bar 53 hauls movable support bracket 58 and moves, and movable support bracket 58 carries bottom roll bearing block 1, bottom roll 2 and pulls out and can carry out roll change together with topping roll 3 and roll chock 4.Otherwise, when new roll and bearing block push, by respective sequence, undertaken.

Referring to Figure 21,22, described vertical roll change mechanism and horizontal roll change mechanism are basic identical, comprise equally roll change base 56, be arranged on the bearing block moving track 81 on base plate 70 and roll change base 56, be placed on the movable support bracket with roller 57 58 on bearing block moving track 81.But, one end of its bearing block moving track 81 and movable support bracket 58 will be stretched between two horizontally-guided beams 78 of vertical rolling assembly framework, be positioned at the below of the frame body 40 of floating type frame, the end of this inserting end has block 59, and this block 59 is between transmission side first end plate 14 and transmission side roll chock 65 of frame body 40.

When processing stifled steel accident, described pull bar 53 is directly connected with the housing cap 44 of unsteady frame 11.Like this, movable support bracket 58 does not move, and 55 work of roll change hydraulic cylinder, only need shift out fore side roll 3 and housing cap 44, manually just can directly approach heap steel ground rolled piece 12, blocks up steel accident treatment.In addition, be reinforced pull rod rigidity, on described movable support bracket 58, be provided with supporting gathering sill 63, pull bar 53 is placed on supporting gathering sill 63.

When roll change, described pull bar 53 is connected with movable support bracket 58, and disengagement housing cap 44 is connected with frame body 40, and dismounting transmission mechanism 52 is connected with two rolls, and by spindle hoisting mechanism 62, the spindle of two rolls is fixed.55 work of roll change hydraulic cylinder, housing cap 44 and two rolls 66,67 and the roll chock 65,68 that are placed on movable support bracket 58 are pulled out simultaneously.

In addition, the roller roll change mechanism of described vertical rolling assembly and the roll change mechanism of horizontal rolling assembly, can also cancel pull bar 53, and referring to Figure 22, described roll change hydraulic cylinder 55 is directly connected with movable support bracket 58.

Otherwise, when new roll and bearing block push, by respective sequence, undertaken.

The transmission mechanism of above-mentioned roll change mechanism, take except adopting roll change hydraulic cylinder 55 directly driving, can also adopting the mechanical device that motor or hydraulic motor be prime mover, as chain drive, and the structural shapes such as rack and pinion drive mechanism.

Referring to Fig. 1,21,22, because the configuration space between each rolling assembly of existing tandem mill is generally 5 meters～6 meters, therefore the brace summer 51 of installed vertical rolling assembly transmission mechanism 52 is single independent settings.The entire length of tandem mill of the present invention greatly shortens, therefore the column of the brace summer 51 of installed vertical rolling assembly transmission mechanism 52 can be directly installed on base plate 70, also can be arranged on ground.

Claims (18)

1. combined type two roller tandem mills, comprise at least one horizontal rolling assembly (71), at least one vertical rolling assembly (72), and roll change mechanism, described horizontal rolling assembly (71) and vertical rolling assembly (72) are alternately arranged on rolling mill base (5) along roll line (A-A) continuous arrangement; It is characterized in that

Described rolling mill base (5) comprises the base plate (70) with at least one groove (79) and at least one platform (80), be positioned at the horizontal rolling assembly framework of the upper horizontal rolling assembly of installation (71) arranging of groove (79), be positioned at the upper vertical rolling assembly framework that is affixed ground with horizontal rolling assembly framework and is the installed vertical rolling assembly (72) of 90 ° of settings of platform (80), with the reinforced frame with through hole (77) that is positioned at two rolling assembly framework outsides, is fixedly connected with each rolling assembly framework and base plate (70) respectively;

Described horizontal rolling assembly (71) and vertical rolling assembly (72) comprise the floating type frame (11) in the rolling assembly framework that is embedded in rolling mill base separately, two rolls and roll chock are arranged in floating type frame, the bottom roll bearing block (1) of described horizontal rolling assembly is arranged on second end plate (15) of floating type frame (11), the fore side roll chock (68) of described vertical rolling assembly is arranged on second end plate (15) of floating type frame (11), the roll seam guiding mechanism of described horizontal rolling assembly (71) and vertical rolling assembly (72) is arranged on first end plate (14) of floating type frame (11) separately separately, also increased the roll gap centering body being arranged on movable top cover (6), described movable top cover (6) is connected with each rolling assembly framework,

Described horizontal rolling assembly framework and vertical rolling assembly framework comprise two " door " font roof beams structure (73) that are oppositely arranged separately, the both sides, upper end of two relative " door " font roof beams structure (73) are provided with the first tie-beam (75) that connects two " door " font roof beams structure, described movable top cover (6) is arranged on two the first tie-beams (75), four columns of " door " font roof beam structure (73) of described horizontal rolling assembly framework are connected with vertical base plate, " door " font roof beam structure in two " door " font roof beams structure of described vertical rolling assembly framework lies low on the platform (80) of base plate.

2. combined type two roller tandem mills according to claim 1, it is characterized in that being provided with roll seam guiding mechanism on first end plate (14) of described floating type frame (11) the mechanical transmission mechanism of this roll seam guiding mechanism for thering is the fluid pressure type transmission mechanism of displacement transducer (7) or thering is encoder; Top cover (6) in described floating type frame (11) is provided with roll gap centering body, the mechanical transmission mechanism of this mechanism for having the fluid pressure type transmission mechanism of displacement transducer (7) or having encoder.

3. combined type two roller tandem mills according to claim 2, the fluid pressure type transmission mechanism that it is characterized in that described roll seam guiding mechanism, comprise: one or two depresses servo hydraulic cylinder (9), this is depressed in the first end plate (14) that servo hydraulic cylinder (9) is arranged on described floating type frame (11), and the end face of its piston rod is resisted against on corresponding roll chock.

4. combined type two roller tandem mills according to claim 2, the fluid pressure type transmission mechanism that it is characterized in that described roll gap centering body, comprise one or two centering hydraulic cylinder (8) being arranged on described top cover (6), the shift motion of described centering hydraulic cylinder (8) is for depressing 1/2 of servo hydraulic cylinder (9) shift motion, the moving direction of described centering hydraulic cylinder (8) with described in to depress the moving direction of servo hydraulic cylinder (9) contrary; When being a centering hydraulic cylinder (8), piston rod through top cover (6) by Connection Block (13) with described in depress being connected in series of servo hydraulic cylinder (9), or piston rod passes top cover (6) and is connected with described floating type frame (11); When being two centering hydraulic cylinders (8), piston rod is connected with floating type frame (11) through top cover (6).

5. combined type two roller tandem mills according to claim 2, the mechanical transmission mechanism that it is characterized in that described roll gap clearance adjustment mechanism is a set of or two covers are depressed worm-and-wheel gear, every cover is depressed worm-and-wheel gear and is comprised: be arranged on the screw box (23) in first end plate (14) of described floating type frame (11), with the depress spiro rod (16) being threaded with screw box (23), one end of this depress spiro rod (16) leans on corresponding roll chock, the other end is provided with and is depressed worm gear (21) by connecting key (24), depress worm gear (21) and depress worm screw (22) engagement, the described worm gear (21) of depressing, depressing worm screw (22) and bearing (31) is arranged in reduction case (32) together, reduction case (32) is fixedly connected with floating type frame (11), the described worm gear (21) of depressing is fastenedly connected with connecting key (24), connecting key (24) is slidably matched with the keyway of depress spiro rod (16), when being that two covers are while depressing worm-and-wheel gear, in Liang Tao mechanism one depress worm screw (22) by shaft coupling (34) with depress motor (33) and be connected, depress for two and between worm screw (22), be provided with clutch (35).

6. combined type two roller tandem mills according to claim 2, the mechanical transmission mechanism that it is characterized in that described roll gap centering body is a set of or two cover centering worm-and-wheel gears, every cover centering worm-and-wheel gear comprises: be arranged on the centering nut (29) in described top cover (6) and the centering screw rod (17) being threaded with centering nut (29), centering worm gear (19) is installed on described centering nut (29), centering worm gear (19) and centering worm screw (20) engagement, the shift motion of described centering screw rod (17) is 1/2 of depress spiro rod (16) shift motion, the moving direction of described centering screw rod (17) is contrary with depress spiro rod (16) moving direction, when being a set of centering worm-and-wheel gear, centering screw rod (17) is connected in series with reduction case (32) by Connection Block (13) through top cover (6), or centering screw rod (17) is connected with described floating type frame (11) through top cover (6), when being two cover centering worm-and-wheel gears, two centering screw rods (17) are connected with described floating type frame (11) through top cover (6) respectively, and two centering worm screws (20) are connected by clutch (35).

7. combined type two roller tandem mills according to claim 6, a side that it is characterized in that described centering worm gear (19) has annular boss (28), on described top cover (6), have the cannelure matching with the annular boss (28) of centering worm gear (19), the wheel rim place that is positioned at centering worm gear (19) on described top cover (6) is provided with worm gear pressing plate (25).

8. combined type two roller tandem mills according to claim 2, the mechanical transmission mechanism that it is characterized in that described roll seam guiding mechanism is a set of or two covers are depressed centering worm-and-wheel gear, every cover is depressed centering worm-and-wheel gear and is comprised: be arranged on the screw box (23) in first end plate (14) of described floating type frame (11) and be threaded with screw box (23) depress centering screw rod (18), this one end of depressing centering screw rod (18) leans on corresponding roll chock, the other end is provided with and is depressed worm gear (21) by connecting key (24), this is depressed worm gear (21) and meshes with the worm screw (22) of depressing with encoder, depress worm gear (21), depressing worm screw (22) and bearing (31) is arranged in reduction case (32) together, reduction case (32) is fixedly connected with floating type frame (11), the described worm gear (21) of depressing is fastenedly connected with connecting key (24), connecting key (24) is slidably matched with the keyway of depressing centering screw rod (18), when being that two covers are while depressing centering worm-and-wheel gear, two depress in worm screw (22) one by shaft coupling (34) with depress motor (33) and be connected, depress for two and between worm screw (22), be provided with clutch (35), or two depressed worm screw (22) and be connected with the motor (33) of depressing separately by shaft coupling (34) respectively, depress for two and between worm screw (22), be provided with clutch (35).

9. combined type two roller tandem mills according to claim 8, the mechanical transmission mechanism that it is characterized in that described roll gap centering body, comprise the centering nut (29) being arranged in described top cover (6), this centering nut (29) is threaded with the centering screw rod (18) of depressing of the mechanical transmission mechanism of described roll seam guiding mechanism, the described pitch of depressing centering screw rod (18) and centering nut (29) screw thread is to depress 1/2 of pitch between centering screw rod (18) and screw box (23), the described centering screw rod (18) of depressing is identical with the rotation direction of depressing centering screw rod (18) and centering nut (29) screw thread with the rotation direction of screw box (23) screw thread.

10. combined type two roller tandem mills according to claim 9, it is characterized in that being provided with initial adjustment worm gear (36) on described centering nut (29), initial adjustment worm gear (36) and initial adjustment worm screw (37) engagement, initial adjustment worm screw (37) is connected with initial adjustment motor (39) by shaft coupling.

11. combined type two roller tandem mills according to claim 10, a side that it is characterized in that described initial adjustment worm gear (36) has annular boss (28), the upper tool of described top cover (6) matches with the annular boss (28) of initial adjustment worm gear (36) cannelure, and the wheel rim place that is positioned at initial adjustment worm gear (36) on described top cover (6) is provided with worm gear pressing plate (25).

12. combined type two roller tandem mills according to claim 2, the floating type frame (11) that it is characterized in that described vertical rolling assembly is split-type, comprise its cross sectional shape be the unsealed rectangle of a side frame body (40), be positioned at frame body not sealing part housing cap (44) and for connection frame body (40) retaining mechanism with housing cap (44);

On two relative risers of described frame body (40), there is window, frame body not the inner face of sealing end two risers there is respectively the keyway (43) equipped with housing cap (44) rectangle contiguous block keyway (46), its outside has a male half coupling coordinating with housing cap (44);

Described housing cap (44) has connection end plate (47), the rectangle contiguous block matching with the internal orifice of frame body (40) and the inner stopper mutually equipped with the male half coupling of frame body (40), has the keyway (46) equipped with frame body (40) two riser keyways (43) on the relative two sides of described rectangle contiguous block.

13. combined type two roller tandem mills according to claim 12, the keyway (43) that it is characterized in that described frame body (40) is shaped as right angled triangle keyway, and the keyway (46) of described housing cap (44) is shaped as the special-shaped keyway of a right angled triangle and " T " font combination;

Or the keyway (43) of described frame body (40) is divided into three sections (43a, 43b, 43c) at length direction, the shape of two ends section (43a, 43c) is identical, for right angled triangle keyway, the keyway of its interlude (43b) is holding tank.

14. combined type two roller tandem mills according to claim 13, is characterized in that described retaining mechanism comprises: be arranged on feather key (42) in the keyway of housing cap (44) and frame body (40), control the hydraulic cylinder (41) of this feather key (42) displacement and be arranged on the compression hydraulic cylinder (45) outside housing cap (44);

The piston rod of described compression hydraulic cylinder (45) connects end plate (47) through housing cap (44), is resisted against the end of frame body (40); The hydraulic cylinder seat (50) of described hydraulic cylinder (41) is arranged on the upper surface of described housing cap (44) rectangle contiguous block, and its piston rod is connected with the upper end of feather key (42).

15. combined type two roller tandem mills according to claim 14, is characterized in that described feather key (42) comprises the joint (48) of cuboid and the guide head (49) of connected " T " font;

Or described feather key (42) is divided into three sections (42a, 42b, 42c) at length direction, the shape of two ends section (42a, 42c) is identical, comprise the joint 48 of cuboid and the guide head (49) of connected " T " font, the joint (48) of its interlude (42b) be shaped as right angled triangle, guide head (49) is " T " font; The length of two ends section (42a, 42c) is all less than 1/3 of feather key total length.

16. combined type two roller tandem mills according to claim 2, it is characterized in that described roll change mechanism comprises horizontal roll roll change mechanism and the vertical rolls roll change mechanism matching with each rolling assembly, they comprise separately: roll change base (56), be arranged on the bearing block moving track (81) on base plate (70) and roll change base (56), be placed on the movable support bracket with roller (57) (58) on bearing block moving track (81), the pull bar (53) being connected with movable support bracket (58) and the roll change hydraulic cylinder (55) being connected with pull bar.

17. combined type two roller tandem mills according to claim 16, is characterized in that being provided with at the upper support guide roller (54) rolling of bearing block moving track (81) on described pull bar (53).

18. according to the combined type two roller tandem mills described in claim 16 or 17, it is characterized in that the bearing block moving track (81) of described vertical rolls roll change mechanism and one end of movable support bracket (58) stretch between vertical two horizontally-guided beams of rolling assembly framework (78), be positioned at the below of the frame body (40) of floating type frame, the end of this inserting end has block (59), and this block (59) is positioned between transmission side first end plate (14) and transmission side roll chock (65) of frame body (40).