CN102581012A - 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, flat, the grade separation that particularly can carry out continuous rolling to tubing, bar and section bar is for the combined type two roller tandem mills of arranging.

Background technology

Existing tandem rolling unit is to be arranged by horizontal mill and vertical mill alternate intervals to form that their roll line is on same straight line A-A.In general, the rolling machine frame of said 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 through parallel being installed in the rolling machine frame cavity of roll chock.Two horizontal roll bearing blocks of horizontal mill can carry out vertically moving 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.When rolling; Rolled piece is from the input side charging of tandem rolling unit; Pass the roll gap between two rolls of horizontal mill, vertical mill or vertical mill and horizontal mill successively; By the body of roll of two horizontal rolls rolled piece is carried out vertically vertically rolling, by two erect rolls the body of roll that rolled piece is carried out transverse horizontal is rolling, the rolled piece after rolling is from the outlet side output of tandem rolling unit.

The roll seam guiding mechanism is made up 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 installed in respectively on the transmission side and fore side of rolling machine frame; And through synchronous interlocking mechanism realize 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 through clutch, synchronizing shaft.

The weak point of existing tandem rolling unit is:

Owing to be alternately layout along roll line A-A between the rolling machine frame of horizontal mill and the rolling machine frame of vertical mill,, need to reserve the operations necessary space between the milling train for handling rolled piece obstruction accident; In addition, because horizontal mill or vertical mill are taked two-way adjustment roll seam, the synchronous interlocking mechanism of its two roll seam guiding mechanisms has also taken the certain space of bay interval; Problems make can not be arranged together compactly between horizontal mill and the vertical mill, and each configuration space is 5 meters～6 meters; In the operation of rolling, workpiece front end and afterbody not every roll on certain-length is simultaneously rolling, and workpiece front end or afterbody do not have tension force; Only receive the compression of roll; And the middle part of the rolled piece between horizontal mill and vertical mill had both received the roll compression also to receive the tension force effect, thereby caused rolled piece to reduce not to be definite value to the cross dimensions of afterbody from the head; Head is bigger than intermediate sizes with the size of afterbody, has influenced product quality.

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

Because the roll seam guiding mechanism is for moving two rolls respectively; The relative centering of two rolls moves through displacement transducer or clutch, synchronizing shaft carries out synchronous interlocking; Move relative to centering reduce or increase two roll seams in; Two synchronous equidistant centerings of roll are moved adjust control, the structure more complicated, cost is high.

A because bottom that is mounted in rolling machine frame in two roll seam guiding mechanisms of horizontal mill; During its hydraulic servo cylinder and fluid line or motor and cable pipeline and feed screw nut all are in the immersion of band iron scale and rolling cooling water and wash away; Even because of the accumulation of iron scale around its milling train; The working environment of rolling machine frame bottom is very abominable, has had a strong impact on the service life of bottom roll clearance adjustment mechanism, and the problem of maintenance difficulty is very outstanding; Cause production operational availability to reduce, maintenance cost increases.

In addition, for the two roller tandem mills of arranging continuously horizontal by 45 ° of alternate intervals, each milling train transmission mechanism all is 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 of being arranged on, and have problems such as poor working environment, inconvenience maintenance, underground structure complicacy.

Summary of the invention

Technical problem to be solved by this invention provides a kind of little along roll line A-A entire length size, and single roller moves adjustment roll gap automatic centering during the 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 the rolling assembly of at least one level, and at least one vertical rolling assembly, and roll change mechanism is characterized in that rolling assembly of said level and vertical rolling assembly alternately are installed on the base along roll line A-A continuously with arranging;

Said rolling mill base comprises the base plate with at least one groove and at least one platform; Be positioned at the rolling assembly framework of level of the rolling assembly of installation level that is provided with on the groove; Be positioned on the platform the vertical rolling assembly framework that pastes ground mutually with the rolling assembly framework of level and be the vertical rolling assembly of installation of 90 ° of settings, with the reinforced frame that is positioned at the two rolling assembly frameworks outsides, is fixedly connected with each rolling assembly framework and base plate respectively with through hole;

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

Combined type two roller tandem mills of the present invention; Wherein: rolling assembly framework of said level 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 first tie-beam that connects two " door " font roof beams structure; Said movable top cover is installed on two first tie-beams; Four columns of " door " font roof beam structure of the rolling assembly framework of said level are connected with vertical base plate, and " door " font roof beam structure in two " door " font roof beams structure of said vertical rolling assembly framework lies low on the platform of base plate.

Combined type two roller tandem mills of the present invention; Wherein: said roll seam guiding mechanism is the mechanical type transmission mechanism that is arranged on the fluid pressure type transmission mechanism with displacement transducer on first end plate of said floating type frame or has encoder, and said roll gap centering governor motion is the mechanical type transmission mechanism that is installed in fluid pressure type transmission mechanism on the top cover, that have displacement transducer or has encoder.

Combined type two roller tandem mills of the present invention; Wherein: the fluid pressure type transmission mechanism of said roll seam adjustment; Comprise: one or two depresses servo hydraulic cylinder; This is depressed in first end plate that servo hydraulic cylinder is installed in said floating type frame, and the end face of its piston rod is resisted against on the corresponding roll chock.

Combined type two roller tandem mills of the present invention; Wherein: the fluid pressure type transmission mechanism of said roll gap centering; Comprise one or two centering hydraulic cylinder that is installed on the said top cover; The shift motion of said centering hydraulic cylinder is to depress 1/2 of servo hydraulic cylinder shift motion, and the moving direction that the moving direction of said centering hydraulic cylinder and said is depressed servo hydraulic cylinder is opposite; When being a centering hydraulic cylinder, piston rod passes top cover and depresses being connected in series of servo hydraulic cylinder through Connection Block with said, or piston rod passes top cover and is connected with said floating type frame; When being two centering hydraulic cylinders, piston rod passes top cover and is connected with floating type frame.

Combined type two roller tandem mills of the present invention; Wherein: the mechanical type transmission mechanism of said roll gap gap adjustment is that a cover or two covers are depressed worm-and-wheel gear, and every cover is depressed worm-and-wheel gear and comprised: be arranged on a screw box in first end plate of said floating type frame and the depress spiro rod that is threaded with screw box; One end of this depress spiro rod leans on the roll chock of correspondence; The other end is equipped with through connecting key and depresses worm gear, depresses worm gear and depresses worm engaging, saidly depresses worm gear, depresses worm screw and bearing is installed in the reduction case together; Reduction case is fixedly connected with floating type frame; Saidly depress worm gear and connecting key is fastenedly connected, the keyway of connecting key and depress spiro rod is slidingly matched, when being that two covers are when depressing worm-and-wheel gear; Two covers in the mechanisms depress worm screw through shaft coupling with depress motor and be connected, depress for two and be provided with clutch between the worm screw.

Combined type two roller tandem mills of the present invention; Wherein: the mechanical type transmission mechanism of said roll gap centering is a cover 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 that is connected with the centering nut thread in the said top cover; On the said centering nut centering worm gear is installed; Centering worm gear and centering worm engaging, the shift motion of said centering screw rod are 1/2 of depress spiro rod shift motion, and the moving direction of said centering screw rod is opposite with the depress spiro rod moving direction; When being a cover centering worm-and-wheel gear, the centering screw rod passes top cover and is connected in series with said reduction case through Connection Block, or the centering screw rod passes top cover and is connected with said floating type frame; When being two cover centering worm-and-wheel gears, two centering screw rods pass top cover respectively and are connected with said floating type frame, and two centering worm screws are connected through clutch.

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

Combined type two roller tandem mills of the present invention; Wherein: the mechanical type transmission mechanism of said roll seam adjustment is that a cover or two covers are depressed the centering worm-and-wheel gear; Every cover is depressed the centering worm-and-wheel gear and is comprised: be arranged on a screw box in first end plate of said floating type frame and be threaded with screw box depress the centering screw rod; This end of depressing the centering screw rod leans on the roll chock of correspondence, and the other end is equipped with through connecting key and depresses worm gear, and this depresses worm gear and the worm engaging of depressing with encoder; Depress worm gear, depress worm screw and bearing is installed in the reduction case together; Reduction case is fixedly connected with floating type frame, saidly depresses worm gear and connecting key is fastenedly connected, and connecting key is slidingly matched with the keyway of depressing the centering screw rod; When being that two covers are when depressing the centering worm-and-wheel gear; Two depress in the worm screw one through shaft coupling with depress motor and be connected; Depress for two and be provided with clutch between the worm screw; Or two depressed worm screw and be connected with separately the motor of depressing through shaft coupling respectively, depresses for two and be provided with clutch between the worm screw.

Combined type two roller tandem mills of the present invention; Wherein: the mechanical type transmission mechanism of said roll gap centering; Comprise the centering nut that is arranged in the said top cover; This centering nut is connected with the centering screw flight of depressing of the mechanical type transmission mechanism of said roll seam adjustment; The said pitch of depressing centering screw rod and centering nut thread is to depress 1/2 of pitch between centering screw rod and the screw box, and the said centering screw rod of depressing is identical with the rotation direction of depressing centering screw rod and centering nut thread with the rotation direction of screw box screw thread.

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

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

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

Have window on the two relative risers of said frame body, the frame body not the inner face of sealing end two risers have the keyway equipped respectively with housing cap rectangle contiguous block keyway, its outside has the male half coupling that cooperates with housing cap;

Said housing cap has the rectangle contiguous block that connects end plate, match with the internal orifice of frame body and the inner stopper equipped mutually with the male half coupling of frame body, has the keyway that is equipped with frame body two riser keyways on the relative two sides of said rectangle contiguous block.

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

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

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

The said piston rod that compresses hydraulic cylinder passes housing cap and connects end plate, is resisted against the end of frame body; The hydraulic cylinder seat of said displacement hydraulic cylinder is installed on the upper surface of said 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: said feather key comprises the joint of cuboid and the guide head of connected " T " font;

Perhaps said feather key is divided into three sections at length direction, and the shape of two ends section is identical, comprises 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: said roll change mechanism comprises horizontal roll roll change mechanism and the vertical rolls roll change mechanism that is complementary with each rolling assembly; They comprise separately: the roll change base; Be arranged on the bearing block moving track on base plate and the roll change base, be placed on the movable support bracket on the bearing block moving track, pull bar that is connected with movable support bracket and the roll change hydraulic cylinder that is connected with pull bar with roller.

Combined type two roller tandem mills of the present invention, wherein: said pull bar is provided with the support guide roller that on the bearing block moving track, rolls.

Combined type two roller tandem mills of the present invention; Wherein: the bearing block moving track of said vertical rolls roll change mechanism and an end of movable support bracket stretch 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 link stopper, and this link stopper 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 rolling assembly of level and vertical rolling assembly alternately are installed on the base of a frame-type; The rolling assembly framework that is positioned at framework rolling assembly of each adjacent level and vertical rolling assembly can be 90 ° configuration mutually at each M-M place, same plane with pasting; Both reduced tandem mill along roll line A-A entire length size; Also reduce the overproof segment length between workpiece front end and the afterbody, thereby improved lumber recovery.

2, owing to the rolling machine frame with rolling assembly of each level and vertical rolling assembly all is designed to floating type frame; And set up the roll gap centering body; This roll gap centering body can move floating type frame; Floating type frame and two rolls that are arranged in the floating type frame are moved together; So only need a roll seam guiding mechanism and roll gap centering body just can when carry out the adjustment of two roll seams, to accomplish the automatic centering of two roller gaps and regulate, keep the roll gap center of two rolls constant.Both simplified the structure, reduced investment, improved operating rate and degree of regulation again, and simple to operate, good work environment, thus production cost and maintenance cost reduced.

3, owing to the floating type frame with vertical rolling assembly is designed to split-type, constitute by frame body with riser and housing cap with rectangle contiguous block, the rectangle contiguous block is realized being connected or throwing off with riser through the feather key of retaining mechanism.When changing roll, housing cap and frame body are thrown off by elder generation, housing cap and two rolls are shifted out from the fore side level of milling train together again, directly carry out roller replacing operation, and be easy to operate, reduced the setting height(from bottom) of roll transmission mechanism again; When handling stifled steel accident, only need shift out housing cap and fore side roll, manual work can be directly near heap rolled piece place, steel ground, along what roll line A-A entire length size reduced further assurance is provided thereby be realization tandem mill of the present invention.

4, the combining structure pattern that is designed to have syllogic owing to feather key and keyway with retaining mechanism; The actual shift motion of feather key only is 1/6 to 1/2 of a keyway length; When the dismounting housing cap, feather key must not shorten the shift motion of the hydraulic cylinder piston rod of retaining mechanism for moving frame covers moving of full stroke; Reduced the height of retaining mechanism hydraulic cylinder cylinder seat; Both easy to operate, reduced roller replacing operation again or handled attaching the time of helping of stifled steel accident, and made roller replacing operation convenient, quick.

5, owing to the horizontal roll roll change mechanism and the vertical rolls roll change mechanism that have also designed the special use that is complementary with each rolling assembly at the fore side of milling train; The horizontal roll roll change mechanism can directly shift out or push the rolling assembly framework of level with two rolls from the fore side of milling train; The vertical rolls roll change mechanism can be implemented housing cap is shifted out or push vertical rolling assembly framework, flexible and convenient operation together with the fore side roll from the fore side of milling train together with two rolls or housing cap.

In a word; Have the rolling mill base of frame structure and the combined type of the present invention two roller tandem mills of floating type frame; Be close-coupled layout seamlessly between rolling assembly framework of level and the vertical rolling assembly framework; When roll seam adjustment and roll gap centering body carry out the adjustment of two roll seams, accomplish 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.

Description of drawings

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

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

Fig. 2-the 2nd, Fig. 2-1 vertical view

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

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

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

Fig. 4 is the structural representation of second embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam guiding mechanism and roll gap centering body respectively have a hydraulic cylinder for reduction system, and two hydraulic cylinders are through the Connection Block arranged in series;

Fig. 5 is the structural representation of the 3rd embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1, and expression roll seam guiding mechanism has two hydraulic cylinder for reduction system, and the roll gap centering body has a centering hydraulic cylinder;

Fig. 6 is the structural representation of the 4th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam guiding mechanism has a cover and depresses worm-and-wheel gear, and the roll gap centering body has two cover centering worm-and-wheel gears;

Fig. 7 is the structural representation of the 5th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam guiding mechanism has a cover and depresses worm-and-wheel gear; The roll gap centering body has a cover centering worm-and-wheel gear, and two worm-and-wheel gears are through the Connection Block arranged in series;

Fig. 8 is the structural representation of the 6th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam guiding mechanism has two covers and depresses worm-and-wheel gear, and the roll gap centering body has a cover centering worm-and-wheel gear;

Fig. 9 is the structural representation of the 7th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1, and the adjustment of expression roll seam and roll gap centering have one and overlap and depress the centering worm-and-wheel gear;

Figure 10 is the structural representation of the 8th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam adjustment has two covers with roll gap centering and depresses the centering worm-and-wheel gear, and two overlap and depress the centering worm-and-wheel gear and have one and depress motor;

Figure 11 is the structural representation of the 9th embodiment of the rolling assembly of the level of tandem mill according to the invention and vertical rolling assembly among Fig. 1; Expression roll seam adjustment has two covers with roll gap centering and depresses the centering worm-and-wheel gear, and two overlap and depress the centering worm-and-wheel gear and have two and depress motor;

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

Figure 13 is an O-O sectional drawing among Figure 12;

Figure 14 is a H-H sectional drawing among Figure 12;

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

Figure 16 is G-G or an E-E sectional drawing among Figure 15;

Figure 17 is a P-P sectional drawing among Figure 15;

Figure 18 is a K-K section amplification figure among Figure 13, and the expression feather key is installed in the state in frame body and the housing cap;

Figure 19 is a K-K section amplification figure among Figure 13, and the expression feather key is extracted the state after the part out;

Figure 20 is a B-B sectional drawing among Fig. 1, the roll change mechanism sketch map of the rolling assembly of expression level;

Figure 21 is a C-C sectional drawing among Fig. 1, representes that the fore side roll and the housing cap of vertical rolling assembly shifts out/the immigration state and the first roll change mechanism structural representation.

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

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 the 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 connect axle allocation mechanism, the rolling assembly transmission mechanism of 61 levels; 62 connect a hoisting mechanism, 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, the rolling assembly of 71 levels, 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

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

Existing level milling train and vertical mill comprise separately: rolling machine frame, be installed in two rolls that are arranged in parallel in the rolling machine frame, roll chock, roll balance mechanism 10, regulate the 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 horizontal mill and the vertical mill with prior art alternately is installed on the base of same tower structure, constitute a tandem mill of combining.

Referring to Fig. 1, combined type two roller tandem mills of the present invention comprise rolling mill base 5, roll line A-A is the rolling assembly 71 of at least one level and at least one vertical rolling assembly 72 alternately continuously are installed with arranging in the base upper edge.

According to rolling requirement; The configuration of rolling assembly 71 of the level of combined type two roller tandem mills of the present invention and vertical rolling assembly 72; Can be divided into even number combining and configuring or odd number combining and configuring, promptly 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 combining and configuring is with the rolling beginning of level, with vertical rolling end, perhaps with vertical rolling beginning, with the rolling end of level.The operation of rolling of odd number combining and configuring is with the rolling beginning of level, with the rolling end of level, perhaps with vertical rolling beginning, with vertical rolling end.

For above-mentioned various combination forms, the structure of said rolling mill base 5 has following three kinds of patterns:

When being the even number combining and configuring, referring to Fig. 2-1, the right-hand member of establishing among the figure is the input of milling train, and this figure shows is that level-vertical replaces continuous permutation and combination.Existing with minimum unit, promptly one group " level-vertical " introduced the structure of rolling mill base 5 for the basis.This base 5 comprises the base plate 70 with a groove 79 and a platform 80; Be positioned at the rolling assembly framework of level that groove 79 is provided with the rolling assembly 71 of installation level; Be positioned on the platform 80 the vertical rolling assembly framework that pastes ground mutually with the rolling assembly framework of level and be the vertical rolling assembly 72 of installation of 90 ° of settings; With the reinforced frame 77 that is positioned at the 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.(also having any effect to ask the inventor to add)

Rolling assembly framework of said level and vertical rolling assembly framework comprise that separately 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 first tie-beam 75 that connects two " door " font roof beams structure.During installation; " door " font roof beam structure 73 of the rolling assembly framework of said level 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 the rolling assembly framework of level are called vertically-guided beam 74." door " font roof beam structure 73 of said vertical rolling assembly framework is to lie low on the platform 80 of base plate; In two " door " font roof beams structure one is connected with base plate 70, hereinafter four columns in " door " font roof beam structure of vertical rolling assembly framework is called horizontally-guided beam 78.

Many groups level-vertical milling train of alternately arranging formation continuously is on the basis of above-mentioned one group of level-vertical configuration, sets up many groups level-vertical rolling assembly framework.Said base has a plurality of grooves and a plurality of platform; Rolling assembly framework of level and vertical rolling assembly framework alternately are arranged on the base; Its, outside of two rolling assembly frameworks was provided with reinforced frame 77 equally at whole story, was that three groups of levels-vertical replace continuous structure arranged pattern like Fig. 1,2-1,2-2.

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

When being that odd number group is fashionable, the base plate 70 of said rolling mill base 5 is basic identical with above-mentioned even number combination, and its difference is that the quantity of groove or platform on the base plate 70 is different.If the operation of rolling is with the rolling beginning of level, with the configuration of the form of the rolling end of level, the base plate 70 of said rolling mill base 5 has two grooves at least and lacks one platform than groove.If the operation of rolling is with vertical rolling beginning, with vertical rolling end, the base plate 70 of said rolling mill base 5 has a groove at least and Duos one platform than groove.

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

Under the prerequisite of work, installation, maintenance and the roll change of rolling assembly of the level that do not influence and vertical rolling assembly, each rolling framework is coupled together, can in each rolling assembly framework, be provided with or increase various tie-beams, connecting plate or reinforcement.

The floating type frame of rolling assembly 71 of said level 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 corresponding two pairs of guide beams respectively; And can be along its surface sliding, the bottom of the floating type frame 11 of the rolling assembly of level is inserted in the groove 79, moves perpendicular to its roll 3,2 axis; Roll 67,66 axis that the floating type frame of vertical rolling assembly is perpendicular to it equally move, and roll rolls the seam center and should overlap in twos.For clarity sake, be example with Fig. 1, the floating type rolling machine frame 11 of the rolling assembly 71 of level shows as upper and lower vertical moving 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 rolling assembly of each adjacent level and vertical rolling assembly can be 90 ° configuration mutually at M-M place, same plane with pasting.

In addition, be the height of the rolling assembly 71 of reduction level, can also one vertically-guided beam 74 in two " door " font roof beams structure 73 of the rolling assembly of level be installed in the groove 79 that the vertically-guided beam of another " door " font roof beam structure 73 is installed on the platform 80.Promptly can be with being installed in this side in the groove 79 as transmission side, opposite side is as fore side, shown in Fig. 2-3,2-4.

Be the mobile adjustment effect of the rolling assembly 71 of assurance level, corresponding two pairs of vertically-guided beams 74 of two " door " font roof beams structure 73 are provided with liner plate or wear-resisting slide plate; For guaranteeing the mobile adjustment effect of vertical rolling assembly, corresponding two pairs of horizontally-guided beams 78 of two " door " font framves are provided with liner plate or wear-resisting slide plate.

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

The rolling assembly 71 of said level is installed in the rolling assembly framework separately with vertical rolling assembly 72 separately; Because rolling assembly framework of level and vertical rolling assembly framework are when mounted; Both are mutually 90 ° of placements; Therefore two rolls of the rolling assembly of level are to be parallel to that base plate is upper and lower to laterally arrange, and two rolls are called upper and lower roll respectively, see 3 among Fig. 1,2.Two rolls of vertical rolling assembly are to erect perpendicular to base plate, in Fig. 1, are forward and backward laterally arranging, and two rolls are called transmission side roll 66 and fore side roll 67 respectively, and the roll line of the roll line of vertical rolling assembly and the rolling assembly of level coincides.

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

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

Fig. 4 is second embodiment of rolling assembly of said level and vertical rolling assembly; Its roll seam guiding mechanism has one and depresses servo hydraulic cylinder 9; Said depressing in first end plate 14 that servo hydraulic cylinder 9 is installed in said floating type frame 11, the end face of its piston rod is resisted against on the corresponding roll bearing.Said roll gap centering body has a centering hydraulic cylinder 8, its piston rod pass top cover 6 through Connection Block 13 with depress servo hydraulic cylinder 9 and be cascaded.

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

Among above-mentioned first, second and third embodiment; The roll seam guiding mechanism of the rolling assembly of said level 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 the rolling assembly of level is installed in first end plate 14 that said 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 the topping roll bearing block 4; The servo hydraulic cylinder 9 of depressing of vertical rolling assembly is installed in first end plate 14 that said 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 the transmission side roll bearing 65.

Among above-mentioned first, second and third embodiment, the shift motion of said centering hydraulic cylinder 8 is to depress 1/2 of servo hydraulic cylinder 9 shift motions, and the moving direction that the moving direction of said centering hydraulic cylinder 8 and said is depressed servo hydraulic cylinder 9 is opposite.

Like this; With the rolling assembly of level is example; Its two roll seams adjustment principle is following: servo hydraulic cylinder 9 is depressed in control, topping roll 3 is moved, meanwhile with respect to bottom roll 2; Control centering hydraulic cylinder 8 makes floating type frame 11 carry two rolls 2,3 and moves with respect to rolling mill base 5 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: through 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 topping roll 3 on the contrary are floating type frame 11 and two rolls 2,3 twices of amount of movement together with respect to the amount of movement of bottom roll 2.

More than, bottom roll 3,2 gaps adjustment is reduced to example: suppose: upper and lower roll 3, the total backlash adjustment amount between 2 :-Δ h, the operation principle of above-mentioned adjustment two roll seams is formulated as follows, wherein; Direction with the X-Y reference axis is a standard, with "+" expression, when the moving direction of roll or floating type frame is opposite with the reference axis Y direction, representes with "-" when the moving direction of roll or floating type frame is identical with the reference axis Y direction.

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

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

Then: 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

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

Floating type frame 11 actual shift motions :+1/2 Δ h

Can learn from the aforementioned calculation result: when topping roll moves down adjustment-1/2 Δ h; The bottom roll 2 adjustment+1/2 Δ h that correspondingly moves up; Floating type frame also correspondingly moves+1/2 Δ h simultaneously, thereby relatively moves two rolls 3,2, has realized that not only the gap of topping roll 3 and bottom roll 2 reduces adjustment; And the roll gap of two rolls 3,2 can be regulated the invariant position at maintenance roll gap center in automatic centering.And upper and lower roll 3, the total backlash adjustment amount is-Δ h between 2, that is: two roll seam adjustment amounts also are that the adjustment amount of depressing of rolled piece is-Δ h.

Otherwise, if upper and lower roll 3,2 gaps are adjusted into when increasing, that is: hypothesis: upper and lower roll 3, the 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, and equally through 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 opposite; When making topping roll move up adjustment-1/2 Δ h, bottom roll 2 correspondingly moves down adjustment+1/2 Δ h, and floating type frame also correspondingly moves down adjustment+1/2 Δ h simultaneously; Thereby move two rolls 3,2; Not only realized the gap adjustment of topping roll 3 with bottom roll 2, and the roll gap automatic centering of two rolls 3,2 adjusting, still can keep the invariant position at roll gap center.Its operation principle is identical, and is succinct for making literal, is not going to repeat.

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

For vertical rolling assembly, its two roll seams adjustment principle is the same, and is succinct for making literal, is not going to repeat.

In a word; Among above-mentioned first, second and third embodiment, after the roll gap center is set, carry out the roll seam adjustment in the continuous rolling; Referring to Fig. 1 and 3,4,5; Rolled piece 12 passes the roll gap that two of roll gap or vertical rolling assembly 72 between two horizontal rolls of the rolling assembly 71 of level erect between the rolls successively along roll line A-A, by the body of roll of two horizontal rolls rolled piece 12 is carried out vertically vertically rolling, by two erect rolls the body of roll that rolled piece 12 is carried out transverse horizontal is rolling.According to rolling requirement, servo hydraulic cylinder 9 is depressed in control, implements topping roll 3 respectively, 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 the fore side roll 67 mobile adjustment of half trip relatively; Make two roll seams of upper and lower roll 3,2 and transmission side, fore side roll 66,67 adjust to setting value respectively, the roll gap center is constant simultaneously.The variable quantity of roll seam adjustment by with depress displacement transducer 7 controls that servo hydraulic cylinder 9 or centering hydraulic cylinder 8 are connected.

Fig. 6, the 4th embodiment of rolling assembly of said level and vertical rolling assembly, its roll seam guiding mechanism have a cover and depress worm-and-wheel gear.The worm-and-wheel gear of depressing of the rolling assembly of said level comprises: be arranged on a screw box 23 in first end plate 14 of said floating type frame 11; With the depress spiro rod 16 that is threaded with screw box 23; One end of this depress spiro rod 16 leans on the roll chock of correspondence; The other end is equipped with through connecting key 24 and depresses worm gear 21; Depress worm gear 21 and depress worm screw 22 engagements, depress worm gear 21, depress worm screw 22 and bearing 31 is installed in the reduction case 32 together, reduction case 32 is fixedly connected with floating type frame 11.The said worm gear 21 of depressing is fastenedly connected with connecting key 24, and connecting key 24 is slidingly matched with the keyway of depress spiro rod 16.

Said roll gap centering body has two cover centering worm-and-wheel gears; Every cover centering worm-and-wheel gear comprises: be installed in the centering nut 29 in the said top cover 6; With the centering screw rod 17 that is threaded with centering nut 29; On the said centering nut 29 centering worm gear 19 is installed, both connections can connect through conventional connected mode such as key 26 grades.Said centering worm gear 19 and 20 engagements of centering worm screw.Two centering screw rods 17 pass top cover 6 respectively and are connected with floating type frame 11, are connected through clutch 35 between two centering worm screws 20.

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

Fig. 8 is the 6th embodiment of rolling assembly of the level of said milling train and 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 first end plate 14 of said floating type frame 11; With the depress spiro rod 16 that is threaded with screw box 23; One end of this depress spiro rod 16 leans on the roll chock of correspondence, and the other end is equipped with through connecting key 24 and depresses worm gear 21, depresses worm gear 21 and depresses worm screw 22 engagements; Saidly depress worm gear 21, depress worm screw 22 and bearing 31 is installed in the reduction case 32 together, reduction case 32 is fixedly connected with floating type frame 11.The said worm gear 21 of depressing is fastenedly connected with connecting key 24, and connecting key 24 is slidingly matched with the keyway of depress spiro rod 16; Two covers in the mechanisms depress worm screw 22 through shaft coupling 34 with depress motor 33 and be connected, depress for two and be provided with clutch 35 between the worm screw 22.

Said roll gap centering body has a cover centering worm-and-wheel gear; Comprise: be installed in the centering nut 29 in the said top cover 6; With the centering screw rod 17 that is threaded with centering nut 29, on the said centering nut 29 centering worm gear 19 is installed, centering worm gear 19 and 20 engagements of centering worm screw; Centering screw rod 17 passes top cover 6 and is connected with said floating type frame 11.

Among above-mentioned fourth, fifth, six embodiment; The rolling assembly of said level roll seam guiding mechanism and vertical rolling assembly roll seam guiding mechanism are basic identical; Its difference is that the rolling assembly of the level screw box 23 of depressing worm-and-wheel gear is arranged on first end plate 14 that said 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 the topping roll bearing block 4; The screw box 23 that vertical rolling assembly is depressed worm-and-wheel gear is arranged on first end plate 14 that said 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 the transmission side roll chock 65.

Among above-mentioned fourth, fifth, six embodiment, an end of said centering nut 29 has pressing plate 27, in the other end baffle plate 30 is set during installation, is a cylindrical shape perhaps, at two ends baffle plate 30 is set during installation, all can it be installed on the top cover 6.

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

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

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

One side of said centering worm gear 19 has annular boss 28, has the cannelure that matches with the annular boss 28 of centering worm gear 19 on the said top cover 6, locatees on circumference to ensure centering worm gear 19, like Fig. 6,7,8.The wheel rim place that is positioned at centering worm gear 19 on the said top cover 6 is provided with worm gear pressing plate 25; Like 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 spacing to the centering worm gear 19 in the lifting, prevents 19 slippages of centering worm gear.

For reducing the resistance and the service life of improving centering worm gear 19 and centering nut 29 in the above-mentioned adjustment process, the annular boss 28 of said 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, more simplify for making overall structure, centering nut 29, pressing plate 27 and baffle plate 30 and centering worm gear 19 also can be processed by Cu alloy material.

Like this; Still be example with the rolling assembly of level; Its two roll seams adjustment principle is following: by depressing motor 33 through depressing worm screw 22, depressing worm gear 21 and connecting key 24 rotation depress spiro rods 16; Control depress spiro rod 16 shift motions make topping roll 3 move with respect to bottom roll 2, meanwhile; Rotate centering nut 29 by centering motor 38 through centering worm screw 20, centering worm gear 19 and key 26, control centering screw rod 17 shift motions make floating type frame 11 carry two rolls 2,3 and move with respect to rolling mill base 5 together.The shift motion of setting depress spiro rod 16 is 2 times of centering screw rod 17 shift motions; That is: depressing motor 33, centering motor 38 through the control of encoder 7 electric interlocks rotates respectively; The shift motion of depress spiro rod 16 is 2 times of centering screw rod 17 shift motions; And moving direction is opposite, and making topping roll 3 is floating type frame 11 and two rolls 2,3 twices of amount of movement together with respect to the amount of movement of bottom roll 2.Its operation principle is identical with the roll seam adjustment of above-mentioned first, second and third embodiment and the operation principle of roll gap centering body, and is succinct for making literal, is not going to repeat.

For vertical rolling assembly, its two roll seams adjustment principle is the same.Thereby the operation principle of carrying out the roll seam adjustment in the continuous rolling is identical with above-mentioned first, second and third embodiment also.For making literal succinct, this also no longer stating more.

Referring to Fig. 9,10,11; Be structure and the control of simplifying above-mentioned fourth, fifth, six embodiment; Above-mentioned depress spiro rod 16 is made up with centering screw rod 17; That is: depress centering screw rod 18 with one and substitute above-mentioned depress spiro rods 16 and centering screw rods 17, and be provided with one and depress worm gear of motor 33 transmissions and can accomplish adjustment of above-mentioned roll seam and roll gap automatic centering.The specific embodiment is:

Fig. 9 is the 7th embodiment of rolling assembly of the level of said milling train and vertical rolling assembly; Its roll seam guiding mechanism has a cover and depresses the centering worm-and-wheel gear; The said centering worm-and-wheel gear of depressing comprises: be arranged on a screw box 23 in first end plate 14 of said floating type frame 11 and be threaded with screw box 23 depress centering screw rod 18; This end of depressing centering screw rod 18 leans on the roll chock of correspondence; The other end is equipped with through connecting key 24 and depresses worm gear 21; This depress worm gear 21 with have an encoder depress worm screw 22 engagements, depress worm gear 21, depress worm screw 22 and bearing 31 is installed in the reduction case 32 together, reduction case 32 is fixedly connected with floating type frame 11; The said worm gear 21 of depressing is fastenedly connected with connecting key 24, and connecting key 24 is slidingly matched with the keyway of depressing centering screw rod 18.

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

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

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

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

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

Among above-mentioned the 7th, eight, nine embodiment; The rolling assembly of said level roll seam guiding mechanism and vertical rolling assembly roll seam guiding mechanism are basic identical; Its difference is that the rolling assembly of the level screw box 23 of depressing the centering worm-and-wheel gear is arranged on first end plate 14 that said 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 the topping roll bearing block 4; The screw box 23 that vertical rolling assembly is depressed the centering worm-and-wheel gear is arranged on first end plate 14 that said 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 the transmission side roll chock 65.

Among above-mentioned the 7th, eight, nine embodiment; The said 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 the screw box 23, and the said rotation direction of depressing centering screw rod 18 and screw box 23 screw threads is with to depress centering screw rod 18 identical with the rotation direction of centering nut 29 screw threads.

Like this, be example still with the rolling assembly of level, its two roll seams adjustment principle is following: depress motor 33 through depressing worm screw 22, depressing worm gear 21 and connecting key 24 and rotate and depress centering screw rod 18.Is to be threaded because of depressing centering screw rod 18 with screw box 23; Screw box 23 is become one with floating type frame 11; When depressing 18 rotations of centering screw rod, floating type frame 11 moves with respect to topping roll 3 with bottom roll 2 together, meanwhile; Also be threaded with centering nut 29 because of depressing centering screw rod 18; Depress centering screw rod 18 and in centering nut 29, rotate, and centering nut 29 does not rotate, centering screw rod 18 drives floating type frame and two rolls move with respect to rolling mill base 5 together so depress.Because centering nut 29 is to depress centering screw rod 18 and 1/2 of screw box 23 pitch with the pitch of depressing centering screw rod 18; And thread rotary orientation is identical; So above-mentioned two move adjustment after, floating type frame 11 and bottom roll 2 amount of movements are 2 times of amount of movement and in the opposite direction together on floating type frame 11 and two rolls.

More than, bottom roll 3,2 gaps adjustment is reduced to example: suppose: upper and lower roll 3, the total backlash adjustment amount between 2 :-Δ h; The operation principle of above-mentioned adjustment two roll seams is following with formulae express; Wherein: the direction with the X-Y reference axis is a standard, when the moving direction of roll or floating type frame is identical with the reference axis Y direction, with "+" expression; When the moving direction of roll or floating type frame is opposite with the reference axis Y direction, with "-" expression.

If: depress centering screw rod 18 and be right-handed thread, turn clockwise when depressing centering screw rod 18, depress centering screw rod 18 and in screw box 23, turn clockwise when depressing worm gear 21 with screw box 23, centering nut 29.At this moment, screw box 23 is with floating type frame 11 and bottom roll 2 is depressed centering screw rod 18 together relatively and topping roll 3 amounts of moving up are :+Δ h

Simultaneously, depress centering screw rod 18 and in centering nut 29, turn clockwise, make 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

Then: 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

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

Floating type frame 11 actual shift motions :+Δ h-1/2 Δ h=+1/2 Δ h

Can learn from above result of calculation: 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, thus relatively move two rolls 3,2, realized that not only the topping roll 3 and the gap of bottom roll 2 reduce to adjust; And the roll gap of two rolls 3,2 can be regulated the invariant position at maintenance roll gap center in automatic centering.And upper and lower roll 3, the total backlash adjustment amount is-Δ h between 2, that is: two roll seams adjustment variable quantity just the adjustment amount of depressing of rolled piece be-Δ h.

Otherwise; When depressing motor 33 counter-rotating, depress worm gear 21 and be rotated counterclockwise and depress centering screw rod 18, at this moment; Depressing 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 relative together topping roll 3 amounts of moving down of floating type frame 11 and bottom roll 2 be :-Δ h

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

Then: 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

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

Floating type frame 11 actual shift motions :-Δ h+1/2 Δ h=-1/2 Δ h

Can learn from above result of calculation: when topping roll 3 move up+during 1/2 Δ h; Bottom roll 2 correspondingly moves down-1/2 Δ h; Floating type frame also correspondingly moves down-1/2 Δ h simultaneously, thereby relatively moves two rolls 3,2, has not only realized the gap increase adjustment of topping roll 3 with bottom roll 2; And the roll gap of two rolls 3,2 can be regulated the invariant position at maintenance roll gap center in automatic centering.And upper and lower roll 3, the total backlash adjustment amount is between 2 :+Δ h, that is: same two roll seam adjustment amounts just the adjustment amount of depressing of rolled piece 12 be+Δ h.

Be left hand thread if depress centering screw rod 18 with screw box 23, centering nut 29, the operation principle of its two roll seams adjustment is identical with above-mentioned two roll seams adjustment operation principle, is not going to repeat.

In addition; For regulating the initial position at two roller gap centers; Said centering nut 29 is provided with the initial adjustment worm gear 36 that is connected with centering nut 29 through key 26, this initial adjustment worm gear 36 and 37 engagements of initial adjustment worm screw, and initial adjustment worm screw 37 is connected with initial adjustment motor 39 through shaft coupling.Like this; Control initial adjustment motor 39 transmission initial adjustment worm screws 37, initial adjustment worm gear 36 drive centering nuts 29 and rotate; Depressing centering screw rod 18 floating type frame 11 at the vertical direction band and moves together with upper and lower roll 3,2; Preset definite value is adjusted at the roll gap center of two rolls 3,2, guaranteed that the roll gap of each milling train is centered close on the roll line A-A, satisfy rolling requirement.

For vertical rolling assembly, its two roll seams adjustment principle is the same, and is succinct for making literal, is not going to repeat.

In a word; Among above-mentioned the 7th, eight, nine embodiment; After the roll gap center is set; Carry out roll seam adjustment in the continuous rolling, referring to Fig. 1 and 9,10,11, rolled piece 12 along roll line A-A pass successively two horizontal rolls 1 of the rolling assembly 71 of level, between 2 roll gap and vertical rolling assembly 72 two erect rolls 66, roll gap between 67; By the body of roll of two horizontal rolls 1,2 rolled piece is carried out vertically vertically rolling, by two erect rolls 66,67 the body of roll that rolled piece 12 is carried out transverse horizontal is rolling.According to rolling requirement; Motor 33 is depressed in control; Through depressing worm screw 22, depressing worm gear 21 and make and depress centering screw rod 18 and rotate, both by means of the screw box that is arranged on each floating type frame 11 23, the moving of implement respectively to float frame and bottom roll 2 or fore side roll 67; Simultaneously again by means of the centering nut 29 that is arranged in the top cover; Integrally move floating type frame and two rolls thereof, topping roll 3, transmission side roll 66 be moving of half trip relatively, makes two roll seams of upper and lower roll 3,2 and transmission side, fore side roll 66,67 adjust to setting value respectively; Simultaneously the roll gap center is constant, the variable quantity of roll seam adjustment by with depress motor 33 or depress encoder 7 controls that worm screw 22 is connected.

One side of said initial adjustment worm gear 36 has annular boss 28, has the cannelure that matches with the annular boss 28 of initial adjustment worm gear 36 on the said 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 the said 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 spacing to the initial adjustment worm gear 36 in the lifting, prevents 36 slippages of initial adjustment worm gear.

For reducing the resistance and the service life of improving initial adjustment worm gear 36 and centering nut 29 in the above-mentioned adjustment process, said 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, more simplify for making overall structure, centering nut 29, pressing plate 27 and baffle plate 30 and initial adjustment worm gear 36 also can be processed by Cu alloy material.

For the dismounting of roll gap centering body; Usually; To depress centering screw rod 18 earlier is screwed in the screw box 23 that is installed in floating type frame 11 end plates; To depress worm gear 21 then, depress worm screw 22, bearing 31 and reduction case 32 and other relevant accessories be assembled into to be enclosed within behind the worm reducer and depress on the centering screw rod 18; And with depress motor 33 and be fixed on together on the floating type frame 11, simultaneously with worm reducer with depress between motor 33 output shafts continuously, afterwards said floating type frame 11 is inserted in the rolling mill base 5 together with two related components such as roll chock with shaft coupling 34; Second step was screwed into screw rod 18 upper ends with centering nut 29, selected for use this moment centering nut 29 and baffle plate 30 to become the structural shape of one; In the 3rd step, initial adjustment worm gear 36, initial adjustment worm screw 37, initial adjustment motor 39 and bearing, worm gear pressing plate 25 etc. are installed on the top cover 6, and shaft joint 34 is installed on the relevant position; The 4th step; With top cover 6 and 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 are together sling and be enclosed within on the centering nut 29, and load key 26 in the keyway on centering nut 29 and initial adjustment worm gear 36 composition surfaces.At last, pressing plate 27 is installed, top cover 6 is fixed on the rolling mill base 5 with bolt in the upper end of centering nut 29.

In a word; The roll seam guiding mechanism of the rolling assembly 71 of level of the described combined type two roller tandem mills of the invention described above is identical with the roll gap centering body 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 seams adjustment also is identical.When just assembling,, two rolls of two roll horizontal positioned of the rolling assembly of level, vertical rolling assembly 72 make the installation site different because of being erect the difference of placing.

Referring to Figure 12,13, be the roll change of convenient vertical rolling assembly, said floating type frame 11 is designed to detachable frame, and it comprises frame body 40, housing cap 44 and is used to be connected the retaining mechanism of frame body 40 and housing cap 44.

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

The inner stopper that said housing cap 44 has the rectangle contiguous block that connects end plate 47, match with the internal orifice of frame body 40 and is equipped with mutually with the male half coupling of frame body 40; Its section configuration is similar to " mountain " font; Have the keyway 46 that is equipped with 40 liang of riser keyways of frame body 43 on the relative two sides of said rectangle contiguous block, 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; When preventing that vertical floating type frame 11 receives roll-force, two risers of frame body 40 are outwards distortion laterally, to strengthen the rigidity of the vertical floating type frame of split-type.

Said retaining mechanism comprises: what be installed in 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 installed in housing cap 44 outsides compresses hydraulic cylinder 45.The said piston rod that compresses hydraulic cylinder 45 passes housing cap and connects end plate 47, is resisted against the end of frame body 40, the gap that is used to eliminate feather key 42 stressed contact-making surfaces; The hydraulic cylinder seat 50 of said hydraulic cylinder 41 is installed on the upper surface of said housing cap 44 rectangle contiguous blocks, and its piston rod is connected with the upper end of feather key 42.

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

After said feather key 42 is installed in the keyway 46 of keyway 43 and housing cap 44 of said frame body 40; 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; So the keyway shape on frame body 40 is the 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 the housing cap, shown in figure 14.

Like this, when the rectangle contiguous block of two risers that connect frame body 40 and housing cap 44, driving hydraulic cylinder 41, its piston rod passes the cylinder seat, and feather key 42 is mounted respectively in keyway 43,46, being connected of screw hydraulic cylinder seat 50 and housing cap 44; Driving compresses hydraulic cylinder 45, and its piston rod passes housing cap and connects end plate 47, and its end is resisted against the end of frame body.When needs are removed being connected of frame body 40 risers and housing cap rectangle contiguous block, drive and compress hydraulic cylinder 45, the thrust of elimination frame body end; Dismounting hydraulic cylinder seat 50 is connected with housing cap rectangle contiguous block, drives hydraulic cylinder 41, and its piston rod band feather key 42 and in keyway 43,46, is raised; After feather key 42 was extracted out fully, frame body 40 vertical plates and housing cap rectangle contiguous block were 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; Said feather key 42 is divided into three sections 42a, 42b, 42c at length direction, and the shape of two ends section 42a, 42c is identical, comprises the joint 48 of cuboid and the guide head 49 of connected " T " font; Its shape similar " worker " word steel, shown in figure 16; The joint 48 of its interlude 42b be shaped as right angled triangle, guide head 49 still is " T " font, and is 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 said frame body 40 also is divided into three sections 43a, 43b, 43c at length direction; The shape of two ends section 43a, 43c is identical, and its interlude has holding tank 43b, and the shape of this holding tank 43b can be rectangle or other shape; The width of holding tank 43b 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 43b also can be arranged on the special-shaped groove middle part of housing cap, and its principle is the same, no longer explains at this.

Like this; When needs connect 40 liang of risers of frame body and housing cap 44 rectangle contiguous blocks, drive hydraulic cylinder 41, its piston rod passes the cylinder seat; Feather key 42 be mounted be in the next; This moment riser and the completion that cooperatively interacts that is actually being connected of rectangle contiguous block by upper end section 42a and keyway upper end section 43a, lower end section 42c and the keyway lower end section 43c of feather key 42, the interlude 42b of feather key 42 does not play any connection effect, and is shown in figure 18.When needs are removed being connected of 40 liang of risers of frame body and housing cap 44 rectangle contiguous blocks, drive and compress hydraulic cylinder 45, the thrust of elimination frame body end; Drive hydraulic cylinder 41, its piston rod band feather key 42 and in keyway, is raised; When the lower end of feather key 42 section 42c walks to holding tank 43b; It is upper to be that feather key is in; The right angled triangle end of its rectangle joint 48 breaks away from the constraint of frame body 40 hypomere right angled triangle keyway 43c; 48 of the special-shaped joints of the interlude 42b of feather key 42 are arranged in the special-shaped keyway of housing cap, and the upper end section 42a of feather key 42 is positioned at hydraulic cylinder seat 50, and feather key 42 is removed with the quilt that is connected of the keyway of frame body 40 fully; Frame body 40 risers and housing cap 44 rectangle contiguous blocks are in disengaged condition, and are shown in figure 19.But; The guide head 49 of feather key 42 still is installed on the housing cap 44 rectangle cube contiguous blocks; Can move with housing cap 44; And because of the piston rod stroke of hydraulic cylinder 40 is shortened, and needn't remove being connected of hydraulic cylinder seat 50 and housing cap 44 again, hydraulic cylinder seat 50 also can move along with housing cap 44 together; The control roll change mechanism; Housing cap 44 just with feather key mounted thereto 42, hydraulic cylinder 41 and hydraulic cylinder seat 50, compress hydraulic cylinder 4 and together with being fixed on fore side roll chock 1 and roll 2 or housing cap 44 on the housing cap 44 together with the shifting out or moving into of fore side roll chock 1, roll 2,3 and transmission side roll chock 4 from frame body 40 fore side opening part levels; Thereby both shortened the stroke of hydraulic cylinder 41; Can reduce the stroke more than 2/3; The hydraulic cylinder 41 that has reduced again and the total height of hydraulic cylinder seat 50; Also simplify the installation and removal of frame body and housing cap 44, further reduced roller replacing operation or handled attaching the time of helping of stifled steel accident, improved operating rate.

Equally; When being detachable for the floating type frame 11 of vertical rolling assembly; The guiding mechanism design of said roll seam is on the end plate of the frame body 40 of floating type frame 11; Still design is on transmission side first tie-beam 75 of base 70 " door " font roof beam structure 73 horizontally-guided beams 78 for the movable top cover 6 of roll gap centering body, 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 comprise horizontal roll roll change mechanism and the vertical rolls roll change mechanism that is complementary with each rolling assembly.Said 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 the roll change base 56, be placed on the movable support bracket with roller 57 58 on the moving track 81, pull bar 53 that is connected with movable support bracket 58 and the roll change hydraulic cylinder 55 that is connected with pull bar.Said bearing block moving track 81 can be divided into two sections, and one section is set directly on the base plate 70, and another section is arranged on the roll change base 56.For the reinforced pull rod rigidity, said pull bar 53 is provided with the support guide roller 54 that can on bearing block moving track 81, roll.

During roll change, the rolling assembly of at first control level depress servo hydraulic cylinder 9, the distance of upper and lower roll 3,2 is adjusted to the roll change position; Be that upper and lower roll 3,2 is in maximum opening degree; Control centering hydraulic cylinder 8 moves the frame 11 of floating, and makes the bottom surface of bottom roll bearing block 1 reduce to consistent with bearing block moving track 81 surfaces of roll change base 56; Dismounting transmission mechanism 61 is connected with two rolls, and by connecing axle allocation mechanism 60 axle that connects of two rolls is fixed.Control roll change hydraulic cylinder 55 then, 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 together with topping roll 3 and roll chock 4 and can carry out roll change.Otherwise, when new roll and bearing block push, undertaken by respective sequence.

Referring to Figure 21,22; Said vertical roll change mechanism and horizontal roll change mechanism are basic identical; Comprise roll change base 56 equally, be arranged on the bearing block moving track 81 on base plate 70 and the roll change base 56, be placed on the movable support bracket with roller 57 58 on the bearing block moving track 81.But; One end of its bearing block moving track 81 and movable support bracket 58 will stretch 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 link stopper 59, and this link stopper 59 is between transmission side first end plate 14 and transmission side roll chock 65 of frame body 40.

When the steel accident was blocked up in processing, said pull bar 53 directly was 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 be shifted out fore side roll 3 and housing cap 44, and manual work just can be blocked up the steel accident treatment directly near heap steel ground rolled piece 12.In addition, be the reinforced pull rod rigidity, said movable support bracket 58 is provided with supporting gathering sill 63, and pull bar 53 is placed on the supporting gathering sill 63.

When roll change, said 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 connecing a hoisting mechanism 62 axle that connects of two rolls is fixed.55 work of roll change hydraulic cylinder, housing cap 44 is pulled out with two rolls 66,67 and the roll chock 65,68 that are placed on the movable support bracket 58 simultaneously.

In addition, the roller roll change mechanism of said vertical rolling assembly and the roll change mechanism of the rolling assembly of level can also be cancelled pull bar 53, and referring to Figure 22, said 55 direct connections with movable support bracket 58 of roll change hydraulic cylinder get final product.

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

The transmission mechanism of above-mentioned roll change mechanism, except employing roll change hydraulic cylinder 55 directly drove, can also adopt with motor or hydraulic motor was the mechanical device of prime mover, like chain drive, structural shapes such as rack and pinion drive mechanism.

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

Claims (19)

1. combined type two roller tandem mills; Comprise the rolling assembly of at least one level (71); At least one vertical rolling assembly (72), and roll change mechanism is characterized in that rolling assembly of said level (71) and vertical rolling assembly (72) alternately are installed on the base (5) along roll line (A-A) continuously with arranging;

Said rolling mill base (5) comprises the base plate (70) with at least one groove (79) and at least one platform (80); Be positioned at groove (79) and go up the rolling assembly framework of level of the rolling assembly of installation level (71) that is provided with; Be positioned at the vertical rolling assembly framework that platform (80) upward pastes ground mutually with the rolling assembly framework of level and is the vertical rolling assembly of installation (72) of 90 ° of settings, with the reinforced frame with through hole (77) that is positioned at the two rolling assembly frameworks outsides, is fixedly connected with each rolling assembly framework and base plate (70) respectively;

Rolling assembly of said level (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 the floating type frame; The bottom roll bearing block (1) of the rolling assembly of said level is arranged on second end plate (15) of floating type frame (11); The fore side roll chock (68) of said vertical rolling assembly is arranged on second end plate (15) of floating type frame (11); The roll seam guiding mechanism of rolling assembly of said level (71) and vertical rolling assembly (72) is installed on first end plate (14) of floating type frame (11) separately separately; Also increased the roll gap centering body that is installed on the movable top cover (6), said movable top cover (6) is connected with each rolling assembly framework.

2. combined type two roller tandem mills according to claim 1; It is characterized in that rolling assembly framework of said level 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 first tie-beam (75) that connects two " door " font roof beams structure; Said movable top cover (6) is installed on two first tie-beams (75); Four columns of " door " font roof beam structure (73) of the rolling assembly framework of said level are connected with vertical base plate, and " door " font roof beam structure in two " door " font roof beams structure of said vertical rolling assembly framework lies low on the platform (80) of base plate.

3. combined type two roller tandem mills according to claim 1 and 2; It is characterized in that said roll seam guiding mechanism for being arranged on the fluid pressure type transmission mechanism on first end plate (14) of said floating type frame (11) or having the mechanical type transmission mechanism of encoder with displacement transducer (7), said roll gap centering governor motion for be installed on the top cover (6), have the fluid pressure type transmission mechanism of displacement transducer (7) or have the mechanical type transmission mechanism of encoder.

4. combined type two roller tandem mills according to claim 3; The fluid pressure type transmission mechanism that it is characterized in that the adjustment of said roll seam; Comprise: one or two depresses servo hydraulic cylinder (9); This is depressed in first end plate (14) that servo hydraulic cylinder (9) is installed in said floating type frame (11), and the end face of its piston rod is resisted against on the corresponding roll chock.

5. combined type two roller tandem mills according to claim 3; The fluid pressure type transmission mechanism that it is characterized in that said roll gap centering; Comprise one or two centering hydraulic cylinder (8) that is installed on the said top cover (6); The shift motion of said centering hydraulic cylinder (8) is for depressing 1/2 of servo hydraulic cylinder (9) shift motion, and the moving direction that the moving direction of said centering hydraulic cylinder (8) and said is depressed servo hydraulic cylinder (9) is opposite; When being a centering hydraulic cylinder (8), piston rod passes top cover (6) and depresses being connected in series of servo hydraulic cylinder (9) through Connection Block (13) with said, or piston rod passes top cover (6) and is connected with said floating type frame (11); When being two centering hydraulic cylinders (8), piston rod passes top cover (6) and is connected with floating type frame (11).

6. combined type two roller tandem mills according to claim 3; The mechanical type transmission mechanism that it is characterized in that the adjustment of said roll gap gap is that a cover 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 said floating type frame (11); With the depress spiro rod (16) that is threaded with screw box (23), an end of this depress spiro rod (16) leans on the roll chock of correspondence, and the other end is equipped with through connecting key (24) and depresses worm gear (21); Depress worm gear (21) and depress worm screw (22) engagement; Saidly depress worm gear (21), depress worm screw (22) and bearing (31) is installed in the reduction case (32) together, reduction case (32) is fixedly connected with floating type frame (11), and the said worm gear (21) of depressing is fastenedly connected with connecting key (24); Connecting key (24) is slidingly matched with the keyway of depress spiro rod (16); When being two covers when depressing worm-and-wheel gear, in the two cover mechanisms one depress worm screw (22) through shaft coupling (34) with depress motor (33) and be connected, depress for two and be provided with clutch (35) between the worm screw (22).

7. combined type two roller tandem mills according to claim 3; The mechanical type transmission mechanism that it is characterized in that said roll gap centering is a cover or two cover centering worm-and-wheel gears; Every cover centering worm-and-wheel gear comprises: be arranged on centering nut (29) in the said top cover (6) and the centering screw rod (17) that is threaded with centering nut (29); Centering worm gear (19) is installed on the said centering nut (29); Centering worm gear (19) and centering worm screw (20) engagement, the shift motion of said centering screw rod (17) is 1/2 of depress spiro rod (a 16) shift motion, the moving direction of said centering screw rod (17) is opposite with depress spiro rod (16) moving direction; When being a cover centering worm-and-wheel gear, centering screw rod (17) passes top cover (6) and is connected in series with said reduction case (32) through Connection Block (13), or centering screw rod (17) passes top cover (6) and is connected with said floating type frame (11); When being two cover centering worm-and-wheel gears, two centering screw rods (17) pass top cover (6) respectively and are connected with said floating type frame (11), and two centering worm screws (20) are connected through clutch (35).

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

9. combined type two roller vertical mills according to claim 3; The mechanical type transmission mechanism that it is characterized in that the adjustment of said roll seam is that a cover or two covers are depressed the centering worm-and-wheel gear; Every cover is depressed the centering worm-and-wheel gear and is comprised: be arranged on the screw box (23) in first end plate (14) of said floating type frame (11) and be threaded with screw box (23) depress centering screw rod (18); This end of depressing centering screw rod (18) leans on the roll chock of correspondence; The other end is equipped with through connecting key (24) and depresses worm gear (21); This depress worm gear (21) with have an encoder depress worm screw (22) engagement, depress worm gear (21), depress worm screw (22) and bearing (31) is installed in the reduction case (32) together, reduction case (32) is fixedly connected with floating type frame (11); The said worm gear (21) of depressing is fastenedly connected with connecting key (24), and connecting key (24) is slidingly matched with the keyway of depressing centering screw rod (18); When being that two covers are when depressing the centering worm-and-wheel gear; Two depress in the worm screw (22) one through shaft coupling (34) with depress motor (33) and be connected; Depress for two and be provided with clutch (35) between the worm screw (22); Or two depressed worm screw (22) and be connected with separately the motor (33) of depressing through shaft coupling (34) respectively, depresses for two and be provided with clutch (35) between the worm screw (22).

10. combined type two roller tandem mills according to claim 9; The mechanical type transmission mechanism that it is characterized in that said roll gap centering; Comprise the centering nut (29) that is arranged in the said top cover (6); This centering nut (29) is threaded with the centering screw rod (18) of depressing of the mechanical type transmission mechanism of said roll seam adjustment; The said 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 the screw box (23), and the said rotation direction of depressing centering screw rod (18) and screw box (23) screw thread is with to depress centering screw rod (18) identical with the rotation direction of centering nut (29) screw thread.

11. combined type two roller tandem mills according to claim 10; It is characterized in that on said centering nut (29), being equipped with initial adjustment worm gear (36); Initial adjustment worm gear (36) and initial adjustment worm screw (37) engagement, initial adjustment worm screw (37) is connected with initial adjustment motor (39) through shaft coupling.

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

13. combined type two roller tandem mills according to claim 3; The floating type frame (11) that it is characterized in that said vertical rolling assembly is split-type, comprise its cross sectional shape be the unsealed rectangle of a side frame body (40), be positioned at the housing cap (44) and the retaining mechanism that is used to be connected frame body (40) and housing cap (44) of the not sealing part of frame body;

Have window on the two relative risers of said frame body (40), at the frame body keyway (43) that inner face of sealing end two risers does not have respectively and housing cap (44) rectangle contiguous block keyway (46) is equipped, its outside has the male half coupling that cooperates with housing cap (44);

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

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

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

15. combined type two roller tandem mills according to claim 13 is characterized in that said retaining mechanism comprises: be installed in 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 compress hydraulic cylinder (45) outside the housing cap (44) with being installed in;

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

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

Perhaps said 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.

17. combined type two roller tandem mills according to claim 3; It is characterized in that said roll change mechanism comprises horizontal roll roll change mechanism and the vertical rolls roll change mechanism that is complementary 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 the roll change base (56); Be placed on the movable support bracket with roller (57) (58) on the bearing block moving track (81), pull bar (53) that is connected with movable support bracket (58) and the roll change hydraulic cylinder (55) that is connected with pull bar.

18. combined type two roller tandem mills according to claim 17 is characterized in that said pull bar (53) is provided with the support guide roller (54) of going up rolling at bearing block moving track (81).

19. according to claim 17 or 18 described combined type two roller tandem mills; It is characterized in that the bearing block moving track (81) of said vertical rolls roll change mechanism and an 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 link stopper (59), and this link stopper (59) is positioned between transmission side first end plate (14) and transmission side roll chock (65) of frame body (40).

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