CN103143569B

CN103143569B - Roller shell type steel plate planetary rolling mill

Info

Publication number: CN103143569B
Application number: CN201310078575.0A
Authority: CN
Inventors: 张恒昌; 张坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-12
Filing date: 2013-03-12
Publication date: 2015-02-04
Anticipated expiration: 2033-03-12
Also published as: WO2014139320A1; CN103143569A

Abstract

The invention relates to a roller shell type steel plate planetary rolling mill and belongs to the field of steel plate rolling machinery. The roller shell type steel plate planetary rolling mill is characterized in that a left memorial archway, a right memorial archway, an upper cross beam and a lower cross beam form a closed rack. An upper support roller and a lower support roller balanced by a hydraulic cylinder are symmetrically arranged at the upper part and the lower part of a horizontal center line of the rack, and driven by a main motor via a gear seat, an upper universal connecting shaft and a lower universal connecting shaft. Roller shell devices supporting working rollers with cambered surfaces and mounted in axial arc grooves of the surfaces of the support rollers have three types: sliding bearings are directly mounted on inner cambered surfaces of roller shell bodies; a plurality of pin rollers are connected end to end by retainers between the roller shell bodies and the working rollers and in transition roller ways; and the pin rollers are mounted at the two ends of the roller shell bodies by a left bearing support and a right bearing support. The two ends of the working rollers are fixed with the support rollers by bearing races. An upper roller shell beam and a lower roller shell beam are mounted between the two support rollers and the upper and lower cross beams, and odd columns of upper and lower tapered wedges and adjustment devices of the tapered wedges are mounted between the upper and lower cross beams and the upper and lower roller shell beams. The rolling mill has the advantages that the disadvantages of many accidents and only narrow plate strip capable of being produced are overcome, and the rolling mill is used for continuous casting and continuous rolling of plate blanks.

Description

Roller shell type steel plate planetary rolling

Technical field

The invention belongs to steel plate rolling field of mechanical technique, be specifically related to a kind of Roller shell type steel plate planetary rolling.

Background technology

Steel plate planetary rolling is with the large particular advantages such as (compression ratio can reach 90 ~ 98%), roll-force little (being about 1/5 ~ 1/10 of general milling train) of its rolling reduction, after nineteen fifty, First milling train built up, once fashionable for a time in the world, successively built together about 40, wherein China also has nearly 10.But due to accident in this milling train actual production more (as planet working roll and bearing breakage rate high, upper working rolls and lower working rolls often produces asynchronous etc.), operating rate is low, be difficult to form production capacity, therefore up to the present, except only a few milling train maintains production, all end-of-life state is in, the original good hope that can be used for slab continuous casting rolling can not be realized naturally, in addition, this milling train, only can for the production of the less Strip product of width by the restriction of working roll intensity.

Summary of the invention

The object of the invention is to provide a kind of Roller shell type steel plate planetary rolling, effectively can overcome the shortcoming that prior art exists.

The present invention realizes like this, it includes the closed frame be made up of left and right memorial archway and lower and upper cross-member, be arranged on the upper working rolls and lower working rolls in closed frame, upper lower support roll and main transmission thereof, its architectural feature is as Fig. 1, shown in 2, by left and right memorial archway 9, 9 ' and lower and upper cross-member 1, 1 ' connects and composes closed frame, at the position up and down of the horizontal center line (i.e. roll line) of frame, be furnished with upper working rolls and lower working rolls 7 symmetrically, 7 ', upper lower support roll 6, 6 ' and upper and lower roller shell beam 5, 5 ', upper lower support roll 6, 6 ' by the metal (upper seat 12 at two ends, 12 ' is arranged on left and right memorial archway 9, in the window of 9 ', at upper lower support roll 6, one end of 6 ', by upper and lower universal-joint spindle 15, 15 ' is connected with mair motor 17 with pinion stand 16.Between the metal (upper seat 12,12 ' of upper lower support roll 6,6 ' two ends homonymy, balance hydraulic cylinder 14 is housed.At lower and upper cross-member 1,1 ' and the wedge up and down 2,2 ' that S (S is odd number) can move laterally is housed between roller shell beam 5,5 ' up and down respectively, the large end of each upper and lower wedge 2,2 ' is by being connected with the upper lower transmission case 3,3 ' being arranged on lower and upper cross-member 1,1 ' respectively with its screw rod up and down 4,4 ' fixed, and upper lower transmission case 3,3 ' drives corresponding wedge up and down 2,2 ' to move horizontally by upper and lower screw rod 4,4 '.In the corresponding aperture of the metal (upper seat ring 13,13 ' that the two ends of upper working rolls and lower working rolls 7,7 ' are loaded on by bearing and upper lower support roll 6,6 ' body of roll both ends of the surface fix.The roll surface of upper lower support roll 6,6 ' is evenly equipped with n (n is positive integer) semicircular axial groove that radius is identical, up-down rollers covering device 8,8 ' is installed in axial groove, up-down rollers covering device 8,8 ' is made up of with the sliding bearing 19 directly contacting working roll 7 body of roll roller shell body 18, sees that Fig. 3,4 is depicted as roller shell device I type structure.

The another kind of II type structure of described roller shell device is as shown in Figure 5,6, roller-way between roller shell body 18 ' and working roll 7 and be provided with the transition roller-way 22 be fixed on backing roll 6 between every two roller shell bodies 18 ' and jointly form circulation roller-way, and all rollers 20 loaded in circulation roller-way, couple together with retainer 21 head and the tail at a certain distance.

Described roller shell device III type structure is as shown in Figure 7,8, each roller shell body 18 " two ends left and right bearing race 24,24 ' is installed separately; make the two ends of each roller 20 ' be respectively charged in the corresponding aperture of left and right bearing race 24,24 ' by bearing; and between each roller 20 ' of contacting of working roll 7 body of roll and and roller shell body 18 " be all not in contact with each other between inner arc surface, working roll 7 be forced through each roller 20 ', left and right bearing race 24,24 ' and roller shell body 18 " pass to backing roll 6.

Of the present invention by left and right memorial archway 9,9 ' and lower and upper cross-member 1,1 ' can be used in the repacking to steel plate hot, cold-rolling mill and straightener the closed frame, up-down rollers covering device 8,8 ', up and down roller shell beam 5,5 ' structure and wedge adjusting equipment that connect and compose.

Advantage of the present invention and good effect are:

1. after adding roller shell between each working roll and backing roll, following advantage can be brought: 1. working roll obtains the supporting of both direction simultaneously, effectively can improve bending strength; 2. the bearing of working roll no longer bears roll-force, can increase the service life; 3. the length of working roll can lengthen on demand, to strengthen the width that can roll Strip; 4. suitably can reduce work roll diameter and increase roller number, to reduce roll-force and rolling impact shock.

2. go up lower support roll directly to revolve round the sun with working roll, frictional force between working roll dependence and rolled piece realizes autobiography, so both eliminate maintenance circle and the transmission device thereof of original working roll, again because pinion stand is to the transmission of upper lower support roll, more easily ensure the synchronous of upper working rolls and lower working rolls.

3. pair backing roll has added take lower and upper cross-member as the roller shell beam and oblique wedge adjustment mechanism that rely on, has both improved the intensity of backing roll, and can also carry out roller adjustment more accurately, to improve plate shape precision, and can take into account the pressure adjustment of roll, can save special screwdown gear.

4. this milling train can be used for the continuous casting and rolling of the real meaning of slab, and provides possibility for the planet of steel plate is cold rolling.

5. the dependency structures such as the roller shell device involved by the application, up and down roller shell beam, wedge adjusting equipment and closed frame, equal portable is in steel plate hot, cold-rolling mill and straightener, make it to become brand-new type, same can obtaining simplifies roll-bending device, improves plate shape precision, saves the effects such as special screwdown gear, and can save or reduce, reduce the higher backing roll of cost, reducing equipment cost and energy consumption, especially will be more remarkable for its effect of super-huge wide and heavy plate mill.

Accompanying drawing explanation

Fig. 1 is K direction view in Fig. 2 and partial sectional view

Fig. 2 is the A-A profile in Fig. 1

Fig. 3 is the B-B profile in Fig. 4

Fig. 4 is the A-A profile in Fig. 3

Fig. 5 is the D-D profile in Fig. 6

Fig. 6 is that Fig. 5 plants to obtain C-C profile

Fig. 7 is the F-F profile in Fig. 8

Fig. 8 is the E-E profile in Fig. 7

In figure 1, 1 '-on, sill, 2, 2 '-on, lower wedge, 3, 3 '-on, lower transmission case, 4, 4 '-on, lower screw rod, 5, 5 '-on, lower roller shell beam, 6, 6 '-on, lower support roll, 7, 7 '-on, bottom working roll, 8, 8 '-on, lower roll covering device, 9, 9 '-left, right memorial archway, 10-slab, 11, 11 '-on, lower taper key pair, 12, 12 '-on, step, 13, 13 '-on, lower bearing seat ring, 14-balance hydraulic cylinder, 15, 15 '-on, lower universal-joint spindle, 16-pinion stand, 17-mair motor, 18, 18 ', 18 "-roller shell body, 19-sliding bearing, 20, 20 '-roller, 21-retainer, 22-transition roller-way, 23-trim ring, 24, 24 '-Y-axis bearing

Detailed description of the invention

1. the realization of rolling main transmission:

As shown in Figure 1, 2, power shaft connection mair motor 17, two output shaft of pinion stand 16 is connected with upper lower support roll 6,6 ' respectively by upper and lower universal-joint spindle 15,15 '.Due to upper working rolls and lower working rolls 7,7 ' by up-down rollers covering device 8,8 ' and metal (upper seat ring 13,13 ' be arranged on upper lower support roll 6,6 ' and roll in the arc groove on face, therefore the rotation nature of upper lower support roll 6,6 ' synchronously revolves round the sun with upper working rolls and lower working rolls 7,7 '.The rotation of upper working rolls and lower working rolls 7,7 ' then relies on and realizes with the frictional force of slab 10.Therefore when starting mair motor 17 and rotating, by pinion stand 16 and upper and lower universal-joint spindle 15,15 ' drive upper lower support roll 6,6 ' and working roll 7,7 ' carry out synchronous axial system in opposite directions, once slab 10 is sent here by feeding roller (attached not shown), namely Strip can be rolled into by upper working rolls and lower working rolls 7,7 '.

2. the enforcement of roll bending and roll gap size and roll line Pass line adjustment:

By upper and lower wedge 2,2 ', up and down screw rod 4,4 ' and wedge up and down 2, the 2 ' adjusting device that forms such as upper lower transmission case 3,3 ' (containing transmission nut and motor thereof), according to upper lower support roll 6,6 ' and the adjustment requirement of the amount of deflection of upper working rolls and lower working rolls 7,7 ', roll gap and roll line absolute altitude, start the motor of each row to some extent, namely by upper and lower transmission case 3,3 ' and up and down screw rod 4,4 ' drive upper and lower wedge 2,2 ' to move horizontally, utilize the ramp effect of upper and lower wedge 2,2 ', and with lower and upper cross-member 1,1 ' for relying on, adjustment can be realized.

Claims

1. a Roller shell type steel plate planetary rolling, it includes closed frame, upper working rolls and lower working rolls, upper lower support roll and main transmission thereof, its architectural feature is by left and right memorial archway (9, 9 ') and lower and upper cross-member (1, 1 ') connect and compose closed frame, at the position up and down of the horizontal center line of frame, namely the position up and down of roll line, is furnished with upper working rolls and lower working rolls (7 symmetrically, 7 '), upper lower support roll (6, 6 ') and upper and lower roller shell beam (5, 5 '), upper lower support roll (6, 6 ') by the metal (upper seat (12 at two ends, 12 ') left and right memorial archway (9 is arranged on, 9 ') in window, upper lower support roll (6, 6 ') one end, by upper and lower universal-joint spindle (15, 15 ') be connected with pinion stand (16) and mair motor (17), at upper lower support roll (6, 6 ') the metal (upper seat (12 of two ends homonymy, 12 ') left-right balance hydraulic cylinder (14) is housed, at lower and upper cross-member (1 between, 1 ') and upper and lower roller shell beam (5, 5 ') S the wedge up and down (2 that can move laterally is separately installed with between, 2 '), S is odd number, each upper and lower wedge (2, 2 ') the up and down screw rod (4 of large end by fixing with it, 4 ') respectively be contained in lower and upper cross-member (1, 1 ') upper lower transmission case (3, 3 ') be connected, upper lower transmission case (3, 3 ') by upper and lower screw rod (4, 4 ') wedge up and down (2 corresponding to drive, 2 ') move horizontally, upper working rolls and lower working rolls (7, 7 ') two ends are loaded on by bearing and upper lower support roll (6, 6 ') the metal (upper seat ring (13 that fixes of body of roll both ends of the surface, 13 ') in corresponding aperture, upper lower support roll (6, 6 ') roll surface is evenly equipped with the semicircular axial groove that n radius is identical, n is positive integer, is provided with up-down rollers covering device (8 in axial groove, 8 '), up-down rollers covering device (8, 8 ') be made up of with the sliding bearing (19) directly contacting working roll (7) body of roll roller shell body (18).

2. Roller shell type steel plate planetary rolling as claimed in claim 1, it is characterized in that the another kind of structure of described up-down rollers covering device (8,8 ') is the roller-way that forms between roller shell body (18 ') and working roll (7) and install between every two roller shell bodies (18 ') and the transition roller-way (22) being fixed on backing roll (6) forms circulation roller-way jointly, and all rollers (20) loaded in circulation roller-way, use retainer (21) head and the tail to couple together at a certain distance.

3. Roller shell type steel plate planetary rolling as claimed in claim 1, it is characterized in that described up-down rollers covering device (8, 8 ') another structure is that (two ends of 18 ") are provided with left and right bearing race (24 to each roller shell body separately, 24 '), the two ends of each roller (20 ') are made to be respectively charged into left and right bearing race (24 by bearing, 24 ') in corresponding aperture, and between each roller (20 ') of contacting of working roll (7) and and roller shell body (be all not in contact with each other between 18 ") inner arc surface, working roll (7) be forced through each roller (20 '), left and right bearing race (24, 24 ') and roller shell body (18 ") pass to backing roll (6).

4. Roller shell type steel plate planetary rolling as claimed in claim 1, is characterized in that the described closed frame connected and composed by left and right memorial archway (9,9 ') and lower and upper cross-member (1,1 '), up-down rollers covering device (8,8 '), up and down roller shell beam (5,5 ') structure and wedge adjusting equipment can be used in the repacking to steel plate hot, cold-rolling mill and straightener.