CN2308452Y

CN2308452Y - Vertical roller mill

Info

Publication number: CN2308452Y
Application number: CN 97219398
Authority: CN
Inventors: 王咏梅; 张培巨; 许春善
Original assignee: Handan No1 Steel Rolling Mill
Current assignee: Handan No1 Steel Rolling Mill
Priority date: 1997-07-08
Filing date: 1997-07-08
Publication date: 1999-02-24
Anticipated expiration: 2007-07-08

Abstract

The utility model relates to a vertical roller mill on the product line of hot-rolled strip steel, composed of a driving gear box, a machine frame, a roller assembly, lateral pressure devices, a track, a base and a fixed pulley, wherein, the driving gear box is fixed on the upper part of the machine frame; the roller assembly is arranged in the machine frame at the lower part of the driving gear box and provided with two vertical roller shafts; bearing seats at both ends of the roller shafts are penetrated with horizontal leading screws; the lower parts of the bearing seats are provided withwheels; one end of each of the lead screws is fixed with the lateral pressure system for adjusting the rollers. The utility model has the advantages of high rigidity, high strip steel quality, roll changing time saving and roll changing labour saving.

Description

Vertical miller

The present invention relates to the vertical miller on a kind of hot-rolled strip production line.

Existing vertical miller is made up of uni-drive gear box 1, roller assembly 2, left and right sides pressure device 5,3 and frame 6, and as shown in Figure 1, 2, 3, uni-drive gear box 1 is fixed on the top of frame 6, and it is the power source of milling train.In the frame 6 of roller assembly 2 below uni-drive gear box 1, on frame 6, also hinged with the pull bar 7 of level by shoulder 7 loads, pull bar 9 and frame 6 flexible fastenings can be adjusted to guarantee roller assembly 2.Left and right sides pressure device 5,3 has four motors, drag cantilevered gear train or worm gear respectively, drive each four rhizoid

thick stick

8,10 up and down at last respectively, leading

screw

8,10 also is a cantilevered, inner hinged with roller assembly 2, its effect is the position that is used for adjusting roll, guarantees that the roll gap size meets the requirements.There is following shortcoming in existing vertical miller: 1) side pressure system architecture complexity, and transmission is a lot, the side pressure balance, the side pressure location is inoperative, and load and zero load altering a great deal are arranged, and the roll spring is very big, and is obviously loosening when promptly stinging steel; 2) inoperative because of then locating, two edger rolls with band steel vertical direction be free state, two edger rolls are not parallel and swing indefinitely when crossing steel, cause edger roll rigidity poor, the roll gap difference reaches ± 2.5mm, has a strong impact on strip quality; 3) many and mostly be cantilever structure because of side pressure system transmission, often cause side pressure stuck not handy; 4) owing to need when changing roll uni-drive gear box 1 is hung out, could be with roll from frame 6 suitable for reading hanging out, so the roll change inconvenience, the dismounting maintenance difficult, it is time-consuming to require great effort, and generally needs just can finish in two, three hours, has a strong impact on production.

The objective of the invention is to design a kind of roller assembly rigidity height, roll adjustment, simple roll change vertical miller easily.

The present invention is achieved in that it is by uni-drive gear box, frame, roller assembly, side-pressing device, track, base and fixed pulley are formed, uni-drive gear box is fixed on the top of frame, it is the power source of milling train, internal tooth catcher on its output sliding key shaft can lift up and down by lever, in the frame of roller assembly below uni-drive gear box, it has two vertical roll mandrels, the two ends up and down of two roll mandrels all are bearing block and sealing device, the middle part stationary roll, totally four of bearing blocks, two bearing blocks of upper end are installed with the leading screw of level sealedly, the nut that is mated is fixed in the bearing block, thread rotary orientation in different bearing blocks on the leading screw is opposite, when guaranteeing the leading screw rotation, two bearing blocks can be simultaneously inwards or simultaneously outwards, the leading screw that level is also arranged in two bearing blocks of lower end, its structure is same as described above, and two rolls pass through roll mandrel, it is an integral body, i.e. roller assembly that bearing block and leading screw are linked to be.Four bearing blocks in the roller assembly are realized little matched in clearance in vertical and frame, further improve the rigidity of roller assembly, and a hanger is respectively arranged on it.The upper fixed of roll mandrel has the internal tooth catcher, roll drives by the output sliding key shaft and the engagement of its internal tooth catcher of uni-drive gear box, fixing vehicle wheel under the roll mandrel bottom end bearing seat, pressure wheel is on the track of frame inner bottom part, track extends longitudinally to outside the frame, and its end has a fixed pulley, is used for pulling out roller assembly, frame is fixed on the base, and base and the earth are fixed.Side-pressing device is fixed on leading screw power shaft one end in the roller assembly, the power shaft of rotation side-pressing device, and leading screw rotates simultaneously in the same way, also has dial on the side-pressing device, be used to refer to the size of adjustment amount, its lower end fixing vehicle wheel, pressure wheel is on the track of frame inner bottom part.

The present invention compared with prior art has following advantage: 1) because two rolls are linked as an integral body by leading screw, and roller assembly and frame be little matched in clearance, so roll rigidity height is out of shape very for a short time when the mistake steel, the maximum jitter amount is 0.5mm after tested; 2) side-pressing device of adjustment roll is simple in structure, easy to adjust; When 3) roll is changed, can vertically pull out, need not dismantle uni-drive gear box, roll change is time saving and energy saving, gets final product in general 15 minutes.

Be elaborated below in conjunction with accompanying drawing:

Fig. 1 is the prior art front view;

Fig. 2 is the prior art left view;

Fig. 3 is the prior art partial sectional view;

Fig. 4 is a front view of the present invention;

Fig. 5 is a vertical view of the present invention;

Fig. 6 is a roller assembly front view of the present invention;

Fig. 7 is a roller assembly vertical view of the present invention;

Fig. 8 is side pressure of the present invention system front view;

Fig. 9 is side pressure of the present invention system vertical view.

Frame 13 is gantry closed-in construction, offside door is arranged, it is fixed on the base 17, base 17 is fixed with the earth, the upper end fixed conveyor gear-box 12 of frame 13, its output shaft is two, is all sliding key shaft, and can spur internal tooth catcher 23 up and down by handle 11, the power of roll 25 provides by uni-drive gear box 11.In the frame 13 of roller assembly 14 below uni-drive gear box 12, it has two vertical roll mandrels 26, the two ends up and down of two roll mandrels 26 all are by bearing and

bearing block

20,21,24,27 sealing and fixing, the middle part of two roll mandrels 26 is stationary roll 25 respectively, roll 25 wants height concordant, the roller groove center will be in same horizontal plane,

bearing block

20,21,24,27 totally four, two bearing blocks 20 of upper end, be installed with two levels and parallel leading screw 19 in 24, nut engaged 29 with it, 30 are fixed on bearing block 20, in 24, leading screw 19 and

bearing block

20,24 will seal, thread rotary orientation on the two rhizoid thick sticks 19 in same bearing block is identical, rotation direction is opposite in different bearing blocks, when purpose is leading screw 19 rotations, and two

bearing blocks

20,24 can be simultaneously inwards or simultaneously outwards; Two bearing blocks 21 of lower end, two levels and parallel leading screw 19 are also arranged in 27, its structure is same as described above, be that screw thread on the leading screw 19 in the metal (upper seat of same roll mandrel 26 wants rotation direction identical, to guarantee that two roll mandrels 26 are in vertical state all the time when adjusting, it is translation, the input of four rhizoid thick sticks 19 is all sliding key shaft, the other end of four rhizoid thick sticks 19 is by thrust bearing and an axle cap 31 sealings, two rolls 25 are by roll mandrel 26,

bearing block

20,21,24,27 and leading screw 19 be linked as an integral body, it is roller assembly 14, four bearing blocks 20 wherein, 21,24,27 in the vertical and little matched in clearance of frame 13 realizations, further improve the rigidity of roller assembly 14, also be fixed with a hanger 22 on each bearing block, the upper end of two roll mandrels 26 is fixed with internal tooth catcher 23, roll 25 drives by the output sliding key shaft and 23 engagements of its internal tooth catcher of uni-drive gear box 12, the bottom end bearing seat 21 of

roll mandrel

26,27 times fixing vehicle wheels 28, wheel 28 is pressed on the track 16 of frame 13 inner bottom parts, track 16 extends longitudinally to outside the frame 13, it does not have a fixed pulley 18 in the end place, is used for pulling out roller assembly 14.Side-pressing device 15 is fixed on power shaft one end of leading screw 19 in the roller assembly 14, have in it with roller assembly 14 in four fixing worm gears 34 of leading screw 19 power shafts, four worm gears 34 are driven by a worm screw 35 simultaneously, guaranteeing that four rhizoid thick sticks 19 rotate simultaneously in the same way, or axle drives by two worm screws 35 that castle wheel 33 is connected as a single entity, to realize independent adjustment, also has dial 32 on the side-pressing device 15, be used to refer to the size of adjustment amount, its lower end fixing vehicle wheel 36, wheel 36 is pressed on the track 16.When changing roll 25 that the hanger on steel wire rope one end and the bearing block 22 is fixing, the other end passes fixed pulley 18 and hangs on the overhead traveling crane suspension hook, again the catcher of the internal tooth on the output sliding key shaft of uni-drive gear box 12 23 is pulled on by handle 11, make it to throw off with roll mandrel 26, overhead traveling crane suspension hook upwards pulling can be pulled out roller assembly 14 in frame 13.After having changed roll, it is oppositely drawn in or pushes, make the axle cap 31 on the leading screw 19 withstand frame 13, put down the internal tooth catcher 23 on the output sliding key shaft of uni-drive gear box 12 then, roll mandrel 26 and interior bridle joint hand 23 engagements are got final product.

Claims

1, a kind of vertical miller, it is by uni-drive gear box (12), frame (13), roller assembly (14), side-pressing device (15), track (16), base (17) and fixed pulley (18) are formed, uni-drive gear box (12) is fixed on the top of frame (13), it is the power source of milling train, its output sliding key shaft can lift up and down by lever (11), roller assembly (14) is in the frame (13) of uni-drive gear box (12) below, frame (13) is fixed on the base (17), base (17) is fixed with the earth, it has two vertical roll mandrels (26), the two ends up and down of two roll mandrels (26) all are bearing block (20), (21), (24), (27) and sealing device, middle part stationary roll (25), totally four of bearing blocks, it is characterized in that: two bearing blocks (20) of upper end, (24) be installed with the leading screw (19) of level sealedly, the nut that is mated (29), (30) be fixed on bearing block (20), (24) in, thread rotary orientation on the leading screw in different bearing blocks (19) is opposite, during with assurance leading screw (19) rotation, two bearing blocks can be simultaneously inwards or simultaneously outwards, two bearing blocks (21) of lower end, the leading screw (19) that level is also arranged (27), its structure is same as described above, two rolls (25) are by roll mandrel (26), bearing block (20), (21), (24), (27) and leading screw (19) to be linked to be an integral body, be roller assembly (14), four bearing blocks (20) in the roller assembly (14), (21), (24), (27) realize little matched in clearance in vertical and frame (13), further improve the rigidity of roller assembly (14), bearing block (20), (21), (24), one hanger (22) is respectively arranged (27), the upper fixed of roll mandrel (26) has internal tooth catcher (23), roll (25) is exactly to drive by the output sliding key shaft of uni-drive gear box (12) and its internal tooth catcher (23) engagement, roll mandrel (26) bottom end bearing seat (21), (27) fixing vehicle wheel (28) under, wheel (28) is pressed on the track (16) of frame (13) inner bottom part, track (16) extends longitudinally to outside the frame (13), it has not held a fixed pulley (18), is used for pulling out roller assembly (14); Side-pressing device (15) is fixed on leading screw (19) power shaft one end in the roller assembly (14), the power shaft of rotation side-pressing device (15), leading screw (19) rotates simultaneously in the same way, also be fixed with dial (32) on the side-pressing device (15), be used to refer to the size of adjustment amount, its lower end fixing vehicle wheel (36), wheel (36) is pressed on the track (16).

2, according to the described vertical miller of claim l, it is characterized in that: totally four of the horizontal screw leads (19) of roller assembly (14), respectively there are two in two bearing blocks (21) of two bearing blocks (20), (24) and the lower end of upper end, (27), screw thread on the metal (upper seat (20) of same roll mandrel (26), (21) or (24), (27) interior leading screw (19) wants rotation direction identical, to guarantee that two rolls (26) are in vertical state, i.e. translation all the time when adjusting.

3, vertical miller according to claim 1 and 2 is characterized in that: the input of leading screw (19) is a sliding key shaft in the roller assembly (14), and it realizes detachably cooperating with side-pressing device (15).

4, vertical miller according to claim 1 and 2 is characterized in that: the other end of leading screw (19) is by thrust bearing and an axle cap (31) sealing.

5, vertical miller according to claim 1, it is characterized in that: have in the side-pressing device (15) and fixing four worm gears (34) of middle leading screw (19) power shaft of roller assembly (14), four worm gears (34) are driven by a worm screw (25) simultaneously, realize rapid adjustment.

6 vertical millers according to claim 1 or 5 is characterized in that: worm screw (35) disconnects at the middle part, links to each other by a castle wheel (33), to realize independent adjustment.

7, vertical miller according to claim 1 is characterized in that: roller assembly (14) can go out by frame (13) side, side is advanced, and realizes fast roll changing.